Flip clutch mechanism, blinds and double-glazed windows

Abstract

The present invention provides a flip clutch mechanism, a venetian blind and a double-layer glass window. The flip clutch mechanism includes a mounting frame, a rotating member, a limiting structure and a gear shaft. When the rotating member rotates, it has two end positions. At the end position, the limiting protrusion abuts against the mounting frame. In the abutting state, the gear shaft is away from the latching teeth, the gear shaft is in a free state, the first slider slides in one direction, and the gear shaft can rotate forward with the pulling of the first rope. When the first slider slides in the other direction, the first rope drives the gear shaft to reverse, and the gear shaft slides toward the latching teeth due to the pulling of the first rope until it is locked with the latching teeth. The gear shaft stops rotating, and the first slider continues to slide so that the first rope drives the rotating member to rotate to the other end position, and the gear shaft is separated from the latching teeth and can continue to reverse. In the above process, the rotation of the rotating member can drive the swing of the ladder rope connected to it, and the opening and closing of the venetian blind can be controlled by the cooperation of the first rope, the gear shaft and the rotating member.

Description

Technical Field

[0001] The invention relates to the field of blinds, and in particular to a flip clutch mechanism, a blind and a double-layer glass window. Background Art

[0002] The hollow glass windows with built-in louvers have both sunshade and energy-saving and heat-insulating properties. Currently, the flip transmission structure of the louvers on the market mostly uses synchronous belt drive, but the belt system structure is relatively complex and the service life is low when the belt is in a tensioned state. Summary of the invention

[0003] In view of the defects in the prior art, the object of the present invention is to provide a flip clutch mechanism, a venetian blind and a double-glazed window.

[0004] The present invention provides a flip clutch mechanism, which is applied to a venetian blind and includes a mounting frame, a rotating member, a limiting structure and a gear shaft;

[0005] The rotating member comprises:

[0006] A shaft body, rotatably connected to the mounting frame;

[0007] A mounting portion, arranged on the shaft body, wherein a front side of the mounting portion is provided with an accommodation space for accommodating the clutch gear shaft;

[0008] A sliding hole, provided on the mounting portion, for mounting the gear shaft;

[0009] A latching tooth, arranged on the mounting portion, and used for latching with the gear shaft;

[0010] One end of the sliding hole is arranged close to the latching tooth, and the gear shaft can slide and rotate in the sliding hole. When the gear shaft slides to one end close to the latching tooth, the latching tooth restricts the gear shaft from rotating.

[0011] The limiting structure is connected to the mounting frame and the rotating member, and is used to limit the rotation angle of the rotating member.

[0012] Preferably, the flip clutch mechanism further comprises a first slider and a first pulley arranged on one side of the mounting frame, and a first rope with one end fixed to the first slider;

[0013] One end of the first rope is fixed on the first slider, and the other end extends toward the first pulley in the direction away from the rotating member, wraps around the first pulley half a circle, extends toward the rotating member, wraps around the back of the mounting portion, and then wraps around the gear shaft for one circle, and then extends toward the first slider and is fixed on the first slider.

[0014] Preferably, the limiting structure comprises a limiting protrusion arranged on the mounting portion, and after the mounting portion is rotated to a certain position, the limiting protrusion abuts against the mounting frame, and in the abutting state, the gear shaft is away from the locking tooth.

[0015] Preferably, the flip clutch mechanism further includes a buffer component, and the buffer component includes:

[0016] A fixed seat, arranged on a side of the first sliding block away from the rotating member;

[0017] A mounting seat, which is arranged in the fixing seat and can slide in the fixing seat, and the first pulley is arranged in the mounting seat;

[0018] A buffer spring has one end abutting against the mounting seat and the other end abutting against the fixing seat.

[0019] The present invention also proposes a venetian blind, comprising a rotating shaft, a rope ladder and blades, wherein one end of the rope ladder is connected to the rotating shaft, and the blades are arranged in the rope ladder. It is characterized in that the venetian blind also includes the above-mentioned flip clutch mechanism, and the rotating shaft is coaxially connected to the shaft body.

[0020] Preferably, the venetian blind further comprises a lifting mechanism, and the lifting mechanism comprises:

[0021] A counterweight block is arranged at the bottom of the blade;

[0022] A steering roller shaft, arranged between the rotating shaft and the blade;

[0023] A second pulley is arranged on the mounting frame;

[0024] A third pulley is arranged on the first sliding block;

[0025] One end of the second rope is connected to the counterweight block, and the other end passes through the blade, passes through the second pulley and the third pulley in sequence, and is fixed on the mounting frame.

[0026] The present invention further provides a double-glazed window, comprising a window frame, laminated glass and the above-mentioned venetian blind; the venetian blind is arranged between the laminated glass, and the first sliding block slides in the window frame.

[0027] Preferably, the double-glazed window further comprises a slide rail disposed on the window frame and a second slider disposed on the slide rail;

[0028] The first slider and the second slider clamp a piece of glass in the laminated glass. Magnets are respectively disposed on the first slider and the second slider, and the sliding directions of the two sliders are consistent.

[0029] The limiting structure in the present invention limits the rotation angle of the rotating member to less than 360 degrees, so that the rotating member has two end positions when rotating. At the end positions, the limiting protrusion abuts against the mounting frame. In the abutting state, the gear shaft is away from the latching teeth, the gear shaft is in a free state, the first slider slides in one direction, and the gear shaft can rotate forward with the pulling of the first rope. When the first slider slides in the other direction, the first rope drives the gear shaft to reverse, and the gear shaft slides toward the latching teeth due to the traction of the first rope until it is latched with the latching teeth. The gear shaft stops rotating, and the first slider continues to slide so that the first rope drives the rotating member to rotate to the other end position, and the gear shaft disengages from the latching teeth and can continue to reverse. In the above process, the rotation of the rotating member can drive the swing of the ladder rope connected to it, and the opening and closing of the blinds can be controlled by the cooperation of the first rope, the gear shaft and the rotating member. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the structure of a double-glazed window in one embodiment of the present invention;

[0031] Figure 2 for Figure 1 A schematic diagram of the structure of the venetian blind in the embodiment;

[0032] Figure 3 for Figure 1 A schematic structural diagram of a lifting mechanism in an embodiment;

[0033] Figure 4 for Figure 1 A schematic structural diagram of the flip clutch mechanism in the embodiment. DETAILED DESCRIPTION

[0034] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several variations and improvements may be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0035] Embodiment 1:

[0036] Reference Figures 1 to 4The present invention provides a flip clutch mechanism 20, which is applied to a venetian blind. The flip clutch mechanism 20 includes a mounting frame 21, a rotating member, a limiting structure and a gear shaft 24; the rotating member includes a shaft body 22, a mounting portion 23, a sliding hole 23a and a latching tooth 23b; the shaft body 22 is rotatably connected to the mounting frame 21; the mounting portion 23 is arranged on the shaft body 22, and a receiving space for receiving the clutch gear shaft 24 is arranged on the front of the mounting portion 23; the sliding hole 23a is arranged on the mounting portion 23, and is used to install the gear shaft 24; the latching tooth 23b is arranged on the mounting portion 23, and is used to latch with the gear shaft 24. One end of the sliding hole 23a is arranged close to the latching tooth 23b, and the gear shaft 24 can slide and rotate in the sliding hole 23a. When the gear shaft 24 slides to one end close to the latching tooth 23b, the latching tooth 23b limits the rotation of the gear shaft 24; the limiting structure connects the mounting frame 21 and the rotating member, and is used to limit the rotation angle of the rotating member. Specifically, the limiting mechanism includes a limiting protrusion 23d provided on the mounting portion 23. After the mounting portion 23 rotates to a certain position, the limiting protrusion 23d abuts against the mounting frame 21, and in the abutting state, the gear shaft 24 is away from the latching tooth 23b.

[0037] In this embodiment, the flip clutch mechanism 20 further includes a first slider 26 and a first pulley 27 disposed on one side of the mounting frame 21, and a first rope 25 having one end fixed to the first slider 26. One end of the first rope 25 is fixed to the first slider 26, and the other end extends to the first pulley 27 in a direction away from the rotating member, and after winding around the first pulley 27 for half a circle, extends to the rotating member, winds around the back of the mounting portion 23, and then winds around the gear shaft 24 for one circle, and then extends to the first slider 26 and is fixed to the first slider 26. Furthermore, a plurality of stainless steel pins 23c may be disposed on the back of the mounting portion 23 to keep a small friction between the first rope 25 and the mounting portion 23.

[0038] The limiting structure in the present invention limits the rotation angle of the rotating member to less than 360 degrees, so that the rotating member has two end positions when rotating. At the end position, the limiting protrusion 23d abuts against the mounting frame 21. In the abutting state, the gear shaft 24 is away from the latching tooth 23b, the gear shaft 24 is in a free state, the first slider 26 slides in one direction, and the gear shaft 24 can rotate forward with the pulling of the first rope 25. When the first slider 26 slides in the other direction, the first rope 25 drives the gear shaft 24 to reverse, and the gear shaft 24 slides toward the latching tooth 23b due to the pulling of the first rope 25 until it is locked with the latching tooth 23b. The gear shaft 24 stops rotating, and the first slider 26 continues to slide so that the first rope 25 drives the rotating member to rotate to the other end position, and the gear shaft 24 is separated from the latching tooth 23b and can continue to reverse. In the above process, the rotation of the rotating member can drive the swing of the ladder rope connected to it, and the opening and closing of the blinds can be controlled by the cooperation of the first rope 25, the gear shaft 24 and the rotating member.

[0039] The first rope 25, the first pulley 27, the rotating member and the gear shaft 24 form a pulley block structure for controlling the flipping of the blades. When the first rope 25 continuously moves in the same direction with the first slider 26, the blades do not flip. When the first rope 25 switches from continuous same-direction movement to movement in another direction with the first slider 26, the switching process realizes the flipping of the blades. The state in which the gear shaft 24 and the latching tooth 23b are separated corresponds to the process in which the first rope 25 and the first slider 26 continuously move in the same direction; the state in which the gear shaft 24 and the latching tooth 23b are locked corresponds to the process in which the first rope 25 and the first slider 26 switch movements. The above pulley block structure is simpler than the structure of synchronous belt drive, has a longer service life and lower cost.

[0040] Embodiment 2:

[0041] Reference Figures 1 to 4 In this embodiment, the flip clutch mechanism 20 further includes a buffer assembly, which includes a fixed seat 41, a mounting seat 42 and a buffer spring (not shown in the figure); the fixed seat 41 is arranged on the side of the first slider 26 away from the rotating member; the mounting seat 42 is arranged in the fixed seat 41 and can slide in the fixed seat 41, and the first pulley 27 is arranged in the mounting seat 42; one end of the buffer spring abuts against the mounting seat 42, and the other end abuts against the fixed seat 41. By providing the buffer assembly, the distance between the first pulley 27 and the rotating member is kept within a certain range of motion, which can facilitate the installation of the first rope 25 and keep the first rope 25 taut.

[0042] Embodiment 3:

[0043] Reference Figures 1 to 4The present invention further provides a venetian blind, comprising a rotating shaft 31, a rope ladder 33 and blades, wherein one end of the rope ladder 33 is connected to the rotating shaft 31, and the blades are arranged in the rope ladder 33. The venetian blind also comprises the above-mentioned flip clutch mechanism 20, and the rotating shaft 31 is coaxially connected to the shaft body 22. The venetian blind also comprises a lifting mechanism, which comprises a counterweight, a steering roller shaft 35, a second pulley 36, a third pulley 37 and a second rope 34.

[0044] In this embodiment, the counterweight block is arranged at the bottom of the blade; the steering roller shaft 35 is fixedly arranged between the rotating shaft 31 and the blade; the second pulley 36 is arranged on the mounting frame 21; the third pulley 37 is arranged on the first slider 26; one end of the second rope 34 is connected to the counterweight block, and the other end passes through the blade, passes through the second pulley 36 and the third pulley 37 in turn, and is fixed on the mounting frame 21.

[0045] In this embodiment, the steering roller and the second pulley 36 are fixed pulleys for steering the second rope 34, and the third pulley 37 is a movable pulley. When the third pulley 37 slides down with the first slider 26, the second rope 34 pulls the counterweight to lift the blade, and vice versa, the blade is lowered, thereby realizing the folding and lowering of the blade.

[0046] Embodiment 4:

[0047] Reference Figures 1 to 4 The present invention also provides a double-layer glass window, comprising a window frame 11, a laminated glass 12 and the above-mentioned blinds; the blinds are arranged between the laminated glass 12, and the first slider 26 slides in the window frame 11. The double-layer glass window also includes a slide rail 52 arranged on the window frame 11 and a second slider 51 arranged on the slide rail 52; the first slider 26 and the second slider 51 clamp a piece of glass in the laminated glass 12, and magnets 26b are respectively arranged on the first slider 26 and the second slider 51, and the sliding directions of the two are consistent. Rollers 26a are also arranged on the surface of the first slider 26 and the second slider 51 that are in contact with the glass.

[0048] In this embodiment, by sliding the second slider 51 outside, the first slider 26 inside can be driven to slide up and down. The sliding up and down of the first slider 26 can realize the lowering and folding of the blades through the pulley block and the second rope 34. During the sliding up of the first slider 26, one side of the limit protrusion 23d abuts against the mounting frame 21 to limit the rotation of the rotating member, and the first rope 25 drives the gear shaft 24 to rotate until the first slider 26 slides to the highest point and the blades are completely lowered. When the first slider 26 moves downward from the highest point, the first rope 25 is stretched in the opposite direction, driving the gear shaft 24 to slide inward and clamp the latch 23b, thereby driving the rotating member to flip to drive the rotation of the rotating shaft 31 and the swing of the rope ladder 33, so as to realize the flipping of the blades. When the other side of the limit protrusion 23d abuts against the mounting frame 21, the flipping of the blades is completed, and the gear shaft 24 is separated from the latch 23b. The first slider 26 continues to move downward to drive the first rope 25 to move, and at this time the second rope 34 pulls the blades to lift and fold. The up and down sliding of the first slider 26 can control the retraction and extension of the blades and the flipping of the blades without interfering with each other.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] The above contents are further detailed descriptions of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention.

Claims

1. A flip clutch mechanism, applied to a venetian blind, characterized in that: It includes a mounting frame, a rotating part, a limiting structure and a gear shaft; The rotating member comprises: A shaft body, rotatably connected to the mounting frame; A mounting portion, arranged on the shaft body, wherein a front side of the mounting portion is provided with an accommodation space for accommodating the gear shaft; A sliding hole, provided on the mounting portion, for mounting the gear shaft; A latching tooth, arranged on the mounting portion, and used for latching with the gear shaft; One end of the sliding hole is arranged close to the latching tooth, and the gear shaft can slide and rotate in the sliding hole. When the gear shaft slides to one end close to the latching tooth, the latching tooth restricts the gear shaft from rotating. The limiting structure is connected to the mounting frame and the rotating member, and is used to limit the rotation angle of the rotating member; The flip clutch mechanism also includes a first slider and a first pulley arranged on one side of the mounting frame and a first rope with one end fixed to the first slider; one end of the first rope is fixed to the first slider, and the other end extends toward the first pulley in a direction away from the rotating member, and then extends toward the rotating member after being wound around the first pulley, and then is wound around the back of the mounting portion, and then is wound around the gear shaft, and then extends toward the first slider and is fixed to the first slider.

2. The flip clutch mechanism according to claim 1, characterized in that: The limiting structure includes a limiting protrusion arranged on the mounting portion. After the mounting portion rotates to a certain position, the limiting protrusion abuts against the mounting frame. In the abutting state, the gear shaft is away from the locking tooth.

3. The flip clutch mechanism according to claim 1, characterized in that: The flip clutch mechanism further includes a buffer assembly, and the buffer assembly includes: A fixed seat, arranged on a side of the first sliding block away from the rotating member; A mounting seat, which is arranged in the fixing seat and can slide in the fixing seat, and the first pulley is arranged in the mounting seat; A buffer spring has one end abutting against the mounting seat and the other end abutting against the fixing seat.

4. A venetian blind, comprising a rotating shaft, a rope ladder and blades, wherein one end of the rope ladder is connected to the rotating shaft, and the blades are arranged in the rope ladder, characterized in that: The venetian blind further comprises the flip clutch mechanism according to any one of claims 2 to 3, and the rotating shaft is coaxially connected to the shaft body.

5. The venetian blind according to claim 4, characterized in that: The venetian blind further comprises a lifting mechanism, and the lifting mechanism comprises: A counterweight block is arranged at the bottom of the blade; A steering roller shaft, arranged between the rotating shaft and the blade; A second pulley is arranged on the mounting frame; A third pulley is arranged on the first sliding block; One end of the second rope is connected to the counterweight block, and the other end passes through the blade, passes through the second pulley and the third pulley in sequence, and is fixed on the mounting frame.

6. A double-glazed window, characterized in that: It comprises a window frame, laminated glass and the venetian blind according to claim 4 or 5; the venetian blind is arranged between the laminated glass, and the first sliding block slides in the window frame.

7. The double-glazed window according to claim 6, characterized in that: The double-glazed window further comprises a slide rail arranged on the window frame and a second slider arranged on the slide rail; the first slider and the second slider clamp a piece of glass in the laminated glass, and magnets are respectively arranged on the first slider and the second slider, and the sliding directions of the two sliders are consistent.

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