Clutch control mechanism for window opener

Abstract

According to the clutch control mechanism for the window opener, a driving gear is in linkage with the window opener through a driven gear to achieve electric opening and closing, when a window sash needs to be opened and closed manually, an external tool is inserted into a control window of a box body to push a control part, and a movable plate is driven to move along a fixed plate; the sliding protruding block originally in the slope rising groove slides out along the slope rising groove to abut against the surface of the movable plate or the fixed plate, so that the movable plate and the fixed plate which are originally attached are separated, the distance is increased in the axial direction, the driving gear is made to be far away from the driven gear along the center shaft, linkage of the driving gear and the driven gear is relieved, and the driving gear and the driven gear are driven to rotate. At the moment, the window sash opening and closing motor is not loaded, the window sash can be conveniently opened and closed, escape in emergency is facilitated, safety is improved, after external tools are removed, the first reset elastic piece enables the movable plate to reset through elastic force, and stable electric transmission is achieved.

Description

Technical Field

[0001] The utility model relates to the field of window openers, in particular to a clutch control mechanism for window openers. Background Art

[0002] As people's living standards improve, their requirements for intelligent and comfortable living environments are getting higher and higher. Therefore, the degree of automation in homes is getting higher and higher. People often install window openers on windows to intelligently control the opening or closing of windows. Users can remotely control the windows, which is convenient and simple to use. Even when users are away from home, they can open or close windows at any time according to their needs.

[0003] However, in actual use, the existing window openers not only use electric drive to drive the input disk and the output disk to open and close the door and window components, but also manually turn the handle to drive the door and window components to open and close the windows when encountering a power outage or the window opener motor is damaged. However, when manually opening and closing the window opener, since the door and window components are engaged with the output disk, when the door and window components move, the manual load is very large, and the manual switch is very inconvenient to use, especially when used on a motor with a large primary load. If a fire occurs, resulting in a power outage or motor damage, the doors and windows connected to the window opener will be difficult to open, hindering the user's quick escape. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a clutch control mechanism for a window opener in view of the deficiencies of the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a clutch control mechanism for a window opener, comprising a box body, a driving gear and a driven gear axially arranged in the box body, wherein the driving gear is provided with a clutch groove or a clutch block at a position corresponding to the driven gear, and the driven gear is provided with a clutch block or a clutch groove that cooperates with the clutch groove or the clutch block, a central axis is provided at the center of the driven gear, and the driven gear passes through the driving gear and rotates circumferentially in the box body, a first reset elastic member is provided at one end of the driving gear away from the driven gear to force the driving gear and the driven gear to abut against each other, a clutch assembly is provided at the position corresponding to the driving gear of the box body, and the clutch assembly includes a clutch assembly provided above the driving gear. The fixed plate and the movable plate, one end of the fixed plate is fixedly connected to the box body, and the other end is provided with a plurality of rising slopes or sliding protrusions, one end of the movable plate is provided with a plurality of sliding protrusions or rising slope grooves that slide corresponding to the rising slope grooves or sliding protrusions, and the other end is against the driving gear, one end of the movable plate is provided with a control part, the box body is provided with a control window corresponding to the control part, and the movable plate is controlled to slide along the fixed plate by pushing the control part, and is configured as follows: when the sliding protrusion is set in the rising slope groove, the driving gear and the driven gear are linked, and when the sliding protrusion gradually disengages from the rising slope groove, the driving gear and the driven gear are separated.

[0006] By adopting the above technical solution, the clutch control mechanism can be used on electric window openers such as arm-type window openers, screw-type window openers, and chain-type window openers, wherein a control window is provided outside the box body, so that an external tool can enter and exit the box body to push the control part to work, wherein the motor is linked with the driving gear, and the window sash is linked with the driven gear. Since the driven gear is arranged above the driving gear, the first reset elastic member causes the driving gear to abut against the driven gear, so that the clutch groove of the driving gear and the clutch block of the driven gear are abutted under normal conditions, so that the driving and driven gears remain linked under normal conditions. When the motor of the window opener is working, the window opener is linked through the driving gear via the driven gear to realize electric opening and closing. When manual operation is required, the window opener is opened and closed electrically. When opening or closing the window sash, an external tool is inserted into the control window of the box body to push the control part, thereby driving the movable plate to move along the fixed plate, so that the sliding protrusion originally in the raised slope groove slides out along the raised slope groove and abuts against the surface of the movable plate or the fixed plate. In this way, the movable plate and the fixed plate that were originally in contact with each other are separated, and the axial distance is increased, thereby moving the driving gear away from the driven gear along the central axis, so that the driving gear and the driven gear are decoupled. At this time, the window sash opening and closing motor will not be subjected to load, and the window sash can be opened and closed conveniently, which facilitates escape in an emergency and improves safety. After removing the external tool, the first reset elastic member will reset the movable plate through elastic force, thereby realizing stable electric transmission.

[0007] The above-mentioned clutch control mechanism for a window opener can be further configured as follows: an arcuate groove for the movable plate to rotate inside is provided at one end of the fixed plate corresponding to the movable plate, and a clearance groove for the control part to extend out of the fixed plate is provided at one end of the arcuate groove corresponding to the control window.

[0008] By adopting the above technical solution, an arc-shaped groove is opened on the fixed plate to allow the movable plate to rotate inward, thereby guiding the rotation direction of the movable plate and preventing the movable plate from detaching during the rotation process, thereby improving the stability of the mechanism. At the same time, a clearance groove is opened to allow the control part to extend out of the fixed plate, thereby improving the operational flexibility of the clutch control mechanism.

[0009] The above-mentioned clutch control mechanism for a window opener can be further configured as follows: a second reset elastic member is provided at one end of the movable plate away from the control part, one end of the second reset elastic member abuts against the end of the movable plate, and the other end abuts against the inner wall of the fixed plate, and the reset elastic member is arranged in the arc-shaped groove.

[0010] With the above technical solution, the second resetting elastic member is provided so that the movable plate can be reset by elastic force after the clutch operation, thereby ensuring the stability of the clutch control.

[0011] The above-mentioned clutch control mechanism for a window opener can be further configured as follows: the second reset elastic member is a second reset spring, and the movable plate and the fixed plate are both provided with spring positioning protrusions at locations corresponding to the second reset spring.

[0012] By adopting the above technical solution, the movable plate cooperates with the spring positioning protrusions on the fixed plate, so that the second return spring can be stably positioned and will not disengage, thereby improving the stability and reliability of the clutch control mechanism.

[0013] The above-mentioned clutch control mechanism for a window opener can be further configured as follows: an anti-slip groove is provided at one end of the control part facing the control window, a limiting neck is provided between the control part and the movable plate, and the width of the limiting neck is smaller than the clearance groove.

[0014] With the above technical solution, the anti-slip groove is set up so that the external tool can enter the anti-slip groove for control after being inserted into the control groove, thereby preventing the tool from slipping. The design of the limiting neck allows for a movable space for the control part to move between the limiting neck and the give-way groove. The movable space is also the maximum rotation angle of the movable plate. When the maximum rotation angle is reached, the sliding protrusion is completely separated from the rising slope groove, and the driving gear and the driven gear reach the maximum separation distance, thereby avoiding ineffective work and providing correct tactile feedback.

[0015] The above-mentioned clutch control mechanism for a window opener may be further configured as follows: the fixing plate is provided with a plurality of fixing protrusions fixedly connected to the box body.

[0016] By adopting the above technical solution, the fixing protrusion on the fixing plate is fixedly connected to the box body, thereby enhancing the stability of the fixing plate and thus improving the stability of the entire clutch control mechanism.

[0017] The above-mentioned clutch control mechanism for a window opener can be further configured as follows: a plurality of rising slope grooves are provided on the movable plate, the rising slope grooves gradually deepen along the rotation direction of the movable plate, a plurality of sliding protrusions corresponding to the rising slope grooves are provided on the fixed plate, the sliding protrusions gradually approach the movable plate along the rotation direction of the movable plate, and a clutch plane is provided between the rising slope grooves.

[0018] By adopting the above technical solution, the cooperation between the raised slope groove on the movable plate and the sliding protrusion on the fixed plate realizes the gradual control of the clutch operation, making the clutch process smoother and more controllable, so that the engagement is tighter and the separation is smoother.

[0019] The above-mentioned clutch control mechanism for a window opener can be further configured as follows: the first return elastic member is a first return spring, the first return spring is sleeved on the outer circumferential surface of the central shaft, the end of the box body away from the driven gear is provided with a spring seat, one end of the first return spring is in contact with the spring seat, and the other end is in contact with the driving gear.

[0020] By adopting the above technical solution, the setting of the spring seat provides more installation space between the motor and the driving gear, and enables the driving gear to offset the driven gear through elastic force after the clutch operation, thereby ensuring the stability of the clutch control.

[0021] The above-mentioned clutch control mechanism for a window opener may be further configured as follows: the diameter of one end of the first return spring is larger than the diameter of the other end, and the first return spring is abutted against the driving gear via a spring washer.

[0022] By adopting the above technical solution, a spring is selected as the elastic member, and its two ends are designed with different diameters. When the driving gear is separated from the driven gear, the upper and lower ends of the spring are at the same horizontal plane to the maximum extent (similar to the shape of a mosquito coil), so that it can shrink in an orderly and spiral manner, thereby saving space and maintaining the stability of the structure.

[0023] The above-mentioned clutch control mechanism for a window opener may be further configured as follows: the movable plate and the fixed plate are both C-shaped.

[0024] By adopting the above technical solution, the C-shaped design of the movable plate and the fixed plate conforms to the circular shape of the gear transmission, which reduces the manufacturing cost and can stably realize the arc rotation of the movable plate.

[0025] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the utility model when a chain-type window opener is used.

[0027] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the utility model when a chain-type window opener is used.

[0028] Figure 3 This is a schematic diagram of the transmission structure of the embodiment of the utility model under normal conditions.

[0029] Figure 4 This is a schematic diagram of the transmission structure of an embodiment of the utility model in a separated state.

[0030] Figure 5 This is an exploded view of an embodiment of the present invention.

[0031] Figure 6 This is an exploded view of Example 2 of the present utility model.

[0032] Figure 7 This is a dotted wireframe diagram of a clutch assembly according to an embodiment of the present invention.

[0033] Figure 8 It is a three-dimensional schematic diagram of a clutch assembly according to an embodiment of the present utility model. Implementation Method

[0034] like Figures 1-8As shown, a clutch control mechanism for a window opener comprises a box body 1, a driving gear 2 and a driven gear 3 axially arranged in the box body 1, a clutch groove 21 is provided at the driving gear 2 corresponding to the driven gear 3, a clutch block 31 is provided on the driven gear 3 and engaged with the clutch groove 21, a central shaft 30 is provided at the center of the driven gear 3, and the driven gear 3 passes through the driving gear 2 and rotates circumferentially in the box body 1, a first return spring 4 is provided at the end of the driving gear 2 away from the driven gear 3 to force the driving gear 2 and the driven gear 3 to abut against each other, the first return spring 4 is sleeved outside the central shaft 30, a clutch assembly is provided at the box body 1 corresponding to the driving gear 2, the clutch assembly comprises a C-shaped fixed plate 5 and a movable plate 6 arranged above the driving gear 2, one end of the fixed plate 5 is fixedly connected to the box body 1 by three fixing protrusions 51, and the other end is provided with an arc-shaped groove 52, three sliding protrusions 53 are provided in the arc-shaped groove 52 and gradually approach the movable plate 6 along the rotation direction of the movable plate 6, the sliding protrusion 53 has a triangular cross section, and the movable plate 6 One end is provided with three rising slope grooves 61 corresponding to the sliding protrusion 53, and the other end is against the surface of the driving gear 2. A clutch plane 611 is provided between the rising slope grooves 61. The rising slope grooves 61 gradually become deeper along the rotation direction of the movable plate 6, so that they are adapted to the sliding protrusion 53, so that the sliding protrusion 53 can be completely accommodated in the rising slope grooves 61. A control part 62 is provided at one end of the movable plate 6, and a control window 11 corresponding to the control part 62 is opened in the box body 1. The control part 62 faces An anti-slip groove 621 is provided at one end of the control window 11. When in use, an external tool can be inserted into the control window 11 to push the control part 62 to control the movable plate 6 to slide along the fixed plate 5, so that when the sliding protrusion 53 is set in the rising slope groove 61, the driving gear 2 and the driven gear 3 are linked. When the sliding protrusion 53 gradually disengages from the rising slope groove 61 until it enters the clutch plane 611, the movable plate 6 will move away from the fixed plate 5, so that the driving gear 2 and the driven gear 3 are completely separated and the linkage is released.

[0035] like Figure 7 、 Figure 8 As shown, the arc-shaped groove 52 is provided with a clearance groove 521 at one end corresponding to the control window 11 for the control part 62 to extend out of the fixed plate 5, and a limiting neck 622 is provided between the control part 62 and the movable plate 6. The width of the limiting neck 622 is smaller than the clearance groove, thereby limiting the rotation distance of the movable plate 6, wherein a second return spring 7 is provided at the end of the movable plate 6 away from the control part 62, and a spring positioning protrusion 60 is provided at the movable plate 6 and the fixed plate 5 corresponding to the second return spring 7, so that one end of the second return spring 7 is against the movable plate 6, and the other end is against the inner wall of the fixed plate 5, thereby assisting the movable plate 6 to reset.

[0036] like Figures 1-8As shown, a spring seat 12 is provided at one end of the box body 1 away from the driven gear 3, one end of the first return spring 4 is against the spring seat 12, and the other end is against the driving gear 3, the diameter of one end of the first return spring 4 is larger than the diameter of the other end, and the first return spring 4 is against the driving gear 2 through a spring washer 41, so that the driving gear 2 will not be affected by the first return spring 4 when it rotates.

[0037] like Figures 1-8 As shown, when the clutch control mechanism of the present invention is used on a chain-type window opener, the chain 13 is directly connected to the window sash. Due to the setting of the first return spring 4, the driving gear 2 always keeps linkage with the driven gear 3 under normal conditions. At this time, the motor 8 is working, and the driving gear 2 is driven to rotate through the motor transmission gear set 81 in turn. The driving gear 2 is linked to the driven gear 3 to rotate, and the driven gear 3 drives the chain 13 to extend or retract the box body 1 through the chain transmission gear set 82, thereby opening and closing the window sash, realizing electric opening and closing; and when the power is cut off or the chain window opener is damaged, at this time, it is only necessary to insert an external tool (screwdriver) from the control window 11 of the box body 1 into the control part 62. Due to the setting of the anti-slip groove 621, the screwdriver will not slip, and can stably push the movable plate 6 to rotate along the arc groove 52 and overcome the second return spring. The elastic force of the positioning spring 7 causes the sliding protrusion 53 to gradually disengage from the rising slope groove 61 until it enters the clutch plane 611, thereby increasing the axial distance between the movable plate 6 and the fixed plate 5, so that the clutch groove 21 disengages from the clutch block 31, and the driving gear 4 and the driven gear 5 are decoupled. At this time, the window sash is pushed, and the chain 13 drives the chain transmission gear set 82 and the driven gear 3 to rotate, and the idling of the driven gear 3 does not cause a load on the motor 8, so the window can be opened and escaped quickly. After the external tool (screwdriver) is pulled out, due to the elastic force of the second return spring 7 and the first return spring 4, the driving gear 2 will reset and mesh with the driven gear 3, and since the clutch groove 21 and the clutch block 31 are set to a corresponding cross structure, a slight rotation after resetting can directly engage the linkage, thereby achieving a stable clutch effect.

Claims

1. A clutch control mechanism for a window opener, comprising a housing, a driving gear and a driven gear axially disposed within the housing, the driving gear being provided with a clutch groove or clutch block at a position corresponding to the driven gear, the driven gear being provided with a clutch block or clutch groove that engages with the clutch groove or clutch block, the driven gear being provided with a central axis at its center that passes through the driving gear and rotates circumferentially within the housing, and the driving gear being provided with a first resetting elastic member at one end thereof that forces the driving gear and the driven gear to abut against each other, characterized in that: The box body is provided with a clutch assembly at the driving gear corresponding to the box body, and the clutch assembly includes a fixed plate and a movable plate arranged above the driving gear, one end of the fixed plate is fixedly connected to the box body, and the other end is provided with a plurality of rising slope grooves or sliding protrusions, one end of the movable plate is provided with a plurality of sliding protrusions or rising slope grooves that slide corresponding to the rising slope grooves or sliding protrusions, and the other end is against the driving gear, one end of the movable plate is provided with a control part, the box body is provided with a control window corresponding to the control part, and the movable plate is controlled to slide along the fixed plate by pushing the control part, and is configured as follows: when the sliding protrusion is set in the rising slope groove, the driving gear and the driven gear are linked, and when the sliding protrusion gradually disengages from the rising slope groove, the driving gear and the driven gear are separated.

2. The clutch control mechanism for a window opener according to claim 1, characterized in that: An arcuate groove for the movable plate to rotate in is provided at one end of the fixed plate corresponding to the movable plate, and a clearance groove for the control part to extend out of the fixed plate is provided at one end of the arcuate groove corresponding to the control window.

3. The clutch control mechanism for a window opener according to claim 2, characterized in that: A second reset elastic member is provided at one end of the movable plate away from the control portion. One end of the second reset elastic member abuts against the end of the movable plate, and the other end abuts against the inner wall of the fixed plate. The reset elastic member is arranged in the arc-shaped groove.

4. The clutch control mechanism for a window opener according to claim 3, characterized in that: The second reset elastic member is a second reset spring, and the movable plate and the fixed plate are both provided with spring positioning protrusions at locations corresponding to the second reset spring.

5. The clutch control mechanism for a window opener according to claim 2, characterized in that: An anti-slip groove is provided at one end of the control part facing the control window, and a limiting neck is provided between the control part and the movable plate, wherein the width of the limiting neck is smaller than the giving way groove.

6. The clutch control mechanism for a window opener according to claim 2, characterized in that: The fixing plate is provided with a plurality of fixing protrusions fixedly connected to the box body.

7. A clutch control mechanism for a window opener according to any one of claims 1 to 6, characterized in that: The movable plate is provided with a plurality of rising slope grooves, which gradually deepen along the rotation direction of the movable plate; the fixed plate is provided with a plurality of sliding protrusions corresponding to the rising slope grooves, which gradually approach the movable plate along the rotation direction of the movable plate; and a clutch plane is provided between the rising slope grooves.

8. The clutch control mechanism for a window opener according to claim 7, characterized in that: The first return elastic member is a first return spring, which is sleeved on the outer circumference of the central shaft. A spring seat is provided at one end of the box body away from the driven gear. One end of the first return spring abuts against the spring seat, and the other end abuts against the driving gear.

9. The clutch control mechanism for a window opener according to claim 8, characterized in that: The diameter of one end of the first return spring is larger than the diameter of the other end, and the first return spring is against the driving gear through a spring washer.

10. The clutch control mechanism for a window opener according to claim 7, characterized in that: The movable plate and the fixed plate are both C-shaped.

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