Chain type window opener with clutch mechanism

Abstract

The utility model relates to a chain type window opener with a clutch mechanism, which comprises a box body, a motor, a chain and a chain driving assembly, the chain driving assembly is composed of a chain wheel and a gear transmission assembly, the gear transmission assembly is specially provided with a gear clutch mechanism, and the gear clutch mechanism comprises a driving gear, a driven gear and a clutch movable block. The clutch movable block can be controlled by being inserted into a notch of the box body through an external tool so as to achieve linkage or separation of the driving gear and the driven gear, when the motor works, electric opening and closing are achieved through the gear transmission assembly, when manual operation is needed, gear linkage is relieved by lifting the clutch movable block, the window sash can be opened and closed conveniently, and the window sash can be opened and closed conveniently. The device is not influenced by motor load, is especially suitable for emergency escape, and improves the safety.

Description

Technical Field

[0001] The utility model relates to the field of window openers, in particular to a chain-type window opener with a clutch mechanism. Background Art

[0002] As people's living standards improve, their requirements for smart and comfortable living environments are getting higher and higher. Therefore, the degree of home automation 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] The electric chain window opener is an automated window control system that uses an electric motor as a power source and controls the opening and closing of windows through a transmission mechanism of chains and gears. In actual use, the electric chain window opener not only electrically drives the input disk to link the output disk to open and close the door and window components, but also manually turns the handle to drive the door and window components to open and close the windows when there is 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 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 utility model is to provide a chain-type window opener with a clutch mechanism in view of the deficiencies of the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chain-type window opener with a clutch mechanism, comprising a box body, a motor arranged in the box body, a chain, and a chain drive assembly driving the chain to extend or retract into the box body, the chain drive assembly comprising a sprocket engaged with the chain, a gear transmission assembly arranged between the motor and the sprocket, the motor drives the sprocket to rotate through the gear transmission assembly, the gear transmission assembly comprises a gear clutch mechanism, the gear clutch mechanism comprises a driving gear axially arranged in the box body and linked to the motor, a driven gear linked to the sprocket, and a driven gear arranged between the driving gear and the driven gear. A clutch movable block on one side of the gear, a clutch groove or clutch block for accommodating the driven gear and then engaging with it is provided in the driving gear, a clutch block or clutch groove matched with the clutch groove or clutch block is provided on the driven gear, a central axis is provided at the center of the driven gear, and the driven gear passes through the driving gear and then rotates circumferentially in the box body, the clutch movable block abuts against the surface of the driving gear, and the surface has a clutch control groove for inserting an external tool to drive the clutch movable block to rise and fall axially, thereby driving the driving gear and the driven gear to engage or separate, and a notch for an external tool to enter and exit the box body is provided at a position corresponding to the clutch control groove.

[0006] By adopting the above technical scheme, the external tool can be a screwdriver, a ruler, a needle-nosed pliers, etc. The motor is linked to the driving gear, and the sprocket is linked to the driven gear. Since the driving gear is arranged above the driven gear, the clutch groove of the driving gear and the clutch block of the driven gear are offset by their own weight 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 to the gear transmission component to push the chain to extend or retract into the box body to achieve electric opening and closing. When it is necessary to manually open and close the window sash, the external tool is inserted into the notch of the box body into the clutch control groove, thereby raising the clutch movable block, and then lifting the driving gear along the center axis, so that the driving gear and the driven gear are released from linkage. 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 to drive the chain to extend or retract, which is convenient for escape in an emergency and improves safety.

[0007] The above-mentioned chain-type window opener with a clutch mechanism can be further configured as follows: an elastic member for causing the driving gear and the driven gear to abut against each other is provided at one end of the driving gear away from the driven gear, and an inclined slide that gradually narrows along the direction from the driving gear to the driven gear is provided in the clutch control groove.

[0008] By adopting the above technical solution, a spring is set, and the clutch movable block and the driving gear are directly reset by the spring after the clutch adjustment is completed, so as to ensure the stability of the subsequent motor transmission, and also realize the normal installation and inverted installation. The clutch control groove has an inclined slide that gradually narrows from the driving gear to the driven gear, so that when the external tool is inserted from the wide to the narrow part, the clutch movable plate is also raised from the low to the high part, thereby ensuring that under the same specification of the gap, the clutch movable block can be raised to a higher distance, and the clutch movable block is smoother when moving up and down in the axial direction, which is convenient for controlling the engagement and separation of the clutch mechanism.

[0009] The above-mentioned chain-type window opener with a clutch mechanism can be further configured as follows: a clutch guide shaft is provided at the box body corresponding to the clutch movable block, the clutch guide shaft is inserted into the clutch movable block, and the clutch movable block is axially lifted and lowered along the clutch guide shaft, and the clutch movable block is arranged between the driven gear and the driving gear.

[0010] By adopting the above technical solution, the use of the clutch guide shaft ensures the stable lifting and lowering of the clutch movable block along the axial direction, prevents deviation during operation, affects other gears, and improves the stability of the clutch mechanism when switching. The clutch movable block is arranged between the driven gear and the driving gear, so that the clutch movable block directly abuts against the lower end surface of the driving gear at the lower end, and can directly drive the driving gear to achieve clutch during axial lifting and lowering.

[0011] The above-mentioned chain-type window opener with a clutch mechanism may be further configured as follows: the elastic member is a spring, and the diameter of one end of the spring is greater than the diameter of the other end.

[0012] By adopting the above technical solution, a spring is selected as the elastic member, and its two ends are designed with different diameters, so that after the driving gear is separated from the driven gear, the upper and lower ends of the spring are in the same horizontal plane to the maximum extent (similar to the shape of mosquito coils), so that it can shrink in an orderly and spiral manner, thereby saving space and maintaining the stability of the structure.

[0013] The above-mentioned chain-type window opener with a clutch mechanism may be further configured as follows: the clutch movable block is a U-shaped structure and is inserted at both ends of the driving gear.

[0014] By adopting the above technical solution, the U-shaped clutch movable block can be conveniently inserted at both ends of the driving gear without affecting the rotation and is convenient for lifting and lowering, thereby simplifying the structure and facilitating installation and maintenance.

[0015] The above-mentioned chain-type window opener with a clutch mechanism can be further configured as follows: the gear transmission assembly also includes a worm arranged at the output end of the motor, a first transmission gear shaft meshing with the worm, a first transmission gear arranged on the first transmission gear shaft, a second transmission gear shaft meshing with the first transmission gear, a second transmission gear arranged on the second transmission gear shaft meshing with the driving gear, a third transmission gear shaft arranged on one side of the sprocket and meshing with the driven gear, and a sprocket transmission gear shaft meshing with the third transmission gear shaft, and the sprocket is arranged on the sprocket transmission gear shaft and rotates therewith.

[0016] By adopting the above technical solution, accurate transmission ratio and force transmission are achieved through the combination of a worm, multiple transmission gear shafts and gears, thereby improving torque and carrying capacity.

[0017] The above-mentioned chain-type window opener with a clutch mechanism can be further configured as follows: a spring washer is provided at one end of the central axis away from the driven gear, one end of the elastic member abuts against the driving gear, and the other end abuts against the spring washer.

[0018] By adopting the above technical solution, the spring washer and the elastic member are used in combination, thereby limiting the maximum lifting height of the driving gear to avoid affecting other gear structures.

[0019] The above-mentioned chain-type window opener with a clutch mechanism can be further configured as follows: a clearance groove is provided at one end of the spring washer corresponding to the second transmission gear shaft, and at least two anti-deflection shafts are provided on the surface to be plugged into the box body.

[0020] By adopting the above technical solution, the design of the clearance groove and the anti-deviation shaft can ensure the stability of the second transmission gear shaft during operation and prevent deviation.

[0021] The above-mentioned chain-type window opener with a clutch mechanism may be further configured as follows: a worm mounting seat for positioning and rotating the worm is provided at a position of the box body corresponding to the worm.

[0022] By adopting the above technical solution, the worm is positioned and installed by arranging a worm mounting seat, thereby improving transmission stability.

[0023] The above-mentioned chain-type window opener with a clutch mechanism can be further configured as follows: the box body is provided with shaft sleeves at both ends corresponding to the first transmission gear shaft, the second transmission gear shaft, the third transmission gear shaft, the sprocket transmission gear shaft and the central shaft.

[0024] By adopting the above technical solution, the use of the shaft sleeve can reduce the wear of the shaft end, protect the gear transmission component, extend its service life, and reduce the rotation noise, making the gear transmission smoother.

[0025] The utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model.

[0027] Figure 2 for Figure 1 Exploded diagram.

[0028] Figure 3 It is a three-dimensional schematic diagram of the gear transmission assembly in the linkage state according to the embodiment of the utility model.

[0029] Figure 4 It is a three-dimensional schematic diagram of the gear transmission assembly in a separated state according to an embodiment of the utility model.

[0030] Figure 5 It is a schematic diagram of the structure of the gear transmission assembly according to an embodiment of the utility model.

[0031] Figure 6 The structure of the gear transmission assembly of the utility model is shown in FIG. Figure 2 .

[0032] Figure 7 It is a schematic diagram of the connection between the driving gear, the driven gear and the clutch movable block in the embodiment of the utility model.

[0033] Figure 8 The schematic diagram of the connection between the driving gear, the driven gear and the clutch movable block in the embodiment of the utility model Figure 2 . Implementation

[0034] like Figure 1-Figure 8As shown, a chain-type window opener with a clutch mechanism includes a box body 1, a motor 2 arranged in the box body 1, a chain 3, and a chain driving assembly driving the chain 3 to extend or retract into the box body 1, the chain driving assembly includes a sprocket 31 meshing with the chain 3, and a gear transmission assembly arranged between the motor 1 and the sprocket 31, the motor 1 drives the sprocket 31 to rotate through the gear transmission assembly, the gear transmission assembly includes a gear clutch mechanism, and the gear clutch mechanism includes a driving gear 4 axially arranged in the box body 1 and linked to the motor 1, and a gear 4 linked to the sprocket 3. The driven gear 5 and the clutch movable block 6 arranged on one side of the driving gear 4, the clutch movable block 6 is a U-shaped structure and is inserted at both ends of the driving gear 4, the driving gear 4 is provided with a clutch groove 41 for the driven gear 5 to be accommodated and linked, the driven gear 5 is provided with a clutch block 51 adapted to the clutch groove 4, the driven gear 5 is provided with a central axis 52 at the center, and after passing through the driving gear 4, it rotates circumferentially in the box body 1, and the end of the driving gear 4 away from the driven gear 5 is provided with a spring 7 for causing the driving gear 5 to abut against the driven gear 4, and one end of the spring 7 has a large diameter. The diameter of the other end is such that the clutch movable block 6 abuts against the lower surface of the driving gear 5, and the surface facing the inner wall of the box body 1 has a clutch control groove 61 for inserting an external tool A (screwdriver) to drive the clutch movable block 6 to axially rise and fall, thereby driving the driving gear 4 and the driven gear 5 to be linked or separated. The box body 1 is provided with a notch 11 for the external tool A (screwdriver) to enter and exit the box body 1 at a position corresponding to the clutch control groove 61. The clutch control groove 61 has an inclined slide 62 that gradually narrows along the direction from the driving gear 4 to the driven gear 5. The box body 1 corresponds to the clutch movable block 61. A clutch guide shaft 12 is provided at the block 6, and the clutch guide shaft 12 is inserted in the clutch movable block 6, and the clutch movable block 6 is lifted and lowered axially along the clutch guide shaft 12. The clutch movable block 6 is arranged between the driven gear 5 and the driving gear 4. A spring washer 521 is provided at one end of the central shaft 52 away from the driven gear 5. One end of the spring 7 abuts against the driving gear 4, and the other end abuts against the spring washer 521. A yield groove 522 is provided at one end of the spring washer 521 corresponding to the second transmission gear shaft 14, and at least two anti-bias shafts 523 abutting against the box body 1 are arranged on the surface.

[0035] like Figure 3 , Figure 4As shown, the gear transmission assembly also includes a worm 21 arranged at the output end of the motor 2, a first transmission gear shaft 13 meshing with the worm 21 for transmission, a first transmission gear 131 arranged on the first transmission gear shaft 13, a second transmission gear shaft 14 meshing with the first transmission gear 131, a second transmission gear 141 arranged on the second transmission gear shaft 14 meshing with the driving gear 4, a third transmission gear shaft 15 arranged on one side of the sprocket 31 meshing with the driven gear 5, and a sprocket transmission gear shaft 16 meshing with the third transmission gear shaft 15 for transmission, the sprocket 31 is arranged on the sprocket transmission gear shaft 16 and rotates therewith, a worm mounting seat 211 for positioning and rotating the worm 21 is provided at the box body 1 corresponding to the worm 21, and a shaft sleeve 10 is provided at both ends of the box body 1 corresponding to the first transmission gear shaft 13, the second transmission gear shaft 14, the third transmission gear shaft 15, the sprocket transmission gear shaft 16 and the center axis 52.

[0036] When the chain window opener of the utility model is working, the chain 3 is directly connected to the window sash. Due to the setting of the spring 7, the driving gear 4 always keeps linkage with the driven gear 5 under normal conditions. At this time, the motor 2 is working, and it passes through the worm 21, the first transmission gear shaft 13, the first transmission gear 131, the second transmission gear shaft 14, the second transmission gear 141, the driving gear 4, the driven gear 5, the third transmission gear shaft 15, the sprocket transmission gear shaft 16 to the sprocket 31 in sequence, thereby driving the chain 3 to extend or retract the box body 1 to open and close the window sash, thereby realizing electric opening and closing. When the power is off or the chain window opener is damaged, at this time, it is only necessary to insert the external tool A (a flat-blade screwdriver) from the notch 11 of the box body 1 into the clutch control groove 61, so that the external tool A (a flat-blade screwdriver) gradually raises the clutch movable block 6 along the inclined slide 62. When the external tool A (slotted screwdriver) is rotated, the clutch movable block 6 can be stably lifted along the clutch guide shaft 12 to overcome the pressure of the spring 7, so that the U-shaped plates at both ends of the clutch movable block 6 lift the driving gear 4, disengage the clutch groove 41 from the clutch block 51, and release the driving gear 4 from the driven gear 5. At this time, the window sash is pushed, and the chain 3 passes through the sprocket 31, the sprocket transmission gear shaft 16, and the third transmission gear shaft 15 to the driven gear 5 in sequence. The driven gear 5 idles and does not cause load on the motor 2, and the window can be opened quickly to escape. After the external tool A (slotted screwdriver) is pulled out, due to the elastic force of the spring 7, the driving gear 4 will reset and mesh with the driven gear 5, and since the clutch groove 41 and the clutch block 51 are set to a corresponding cross structure, a slight rotation after resetting can directly mesh and link, thereby achieving a stable clutch effect.

Claims

1. A chain-type window opener with a clutch mechanism, comprising a box body, a motor arranged in the box body, a chain, and a chain drive assembly driving the chain to extend or retract into the box body, the chain drive assembly comprising a sprocket engaged with the chain, and a gear transmission assembly arranged between the motor and the sprocket, the motor drives the sprocket to rotate through the gear transmission assembly, characterized in that: The gear transmission assembly includes a gear clutch mechanism, which includes a driving gear axially arranged in a box body and linked to a motor, a driven gear linked to a sprocket, and a clutch movable block arranged on one side of the driving gear. A clutch groove or a clutch block for the driven gear to be accommodated and linked is provided in the driving gear, and a clutch block or a clutch groove adapted to the clutch groove or the clutch block is provided on the driven gear. 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. The clutch movable block abuts against the surface of the driving gear, and the surface has a clutch control groove for an external tool to be inserted to drive the clutch movable block to rise and fall axially, thereby driving the driving gear to be linked or separated from the driven gear. A notch for an external tool to enter and exit the box body is provided at a position of the box body corresponding to the clutch control groove.

2. A chain-type window opener with a clutch mechanism according to claim 1, characterized in that: An elastic member for causing the driving gear to abut against the driven gear is disposed at one end of the driving gear away from the driven gear, and an inclined slideway gradually narrowed along the direction from the driving gear to the driven gear is disposed in the clutch control groove.

3. A chain-type window opener with a clutch mechanism according to claim 2, characterized in that: The box body is provided with a clutch guide shaft at a position corresponding to the clutch movable block. The clutch guide shaft is inserted in the clutch movable block and enables the clutch movable block to rise and fall axially along the clutch guide shaft. The clutch movable block is arranged between the driven gear and the driving gear.

4. A chain-type window opener with a clutch mechanism according to claim 2, characterized in that: The elastic member is a spring, and the diameter of one end of the spring is greater than the diameter of the other end.

5. The chain-type window opener with a clutch mechanism according to claim 2, characterized in that: The clutch movable block is a U-shaped structure and is inserted at both ends of the driving gear.

6. A chain-type window opener with a clutch mechanism according to any one of claims 2 to 5, characterized in that: The gear transmission assembly also includes a worm arranged at the output end of the motor, a first transmission gear shaft meshing with the worm, a first transmission gear arranged on the first transmission gear shaft, a second transmission gear shaft meshing with the first transmission gear, a second transmission gear arranged on the second transmission gear shaft meshing with the driving gear, a third transmission gear shaft arranged on one side of the sprocket and meshing with the driven gear, and a sprocket transmission gear shaft meshing with the third transmission gear shaft, wherein the sprocket is arranged on the sprocket transmission gear shaft and rotates therewith.

7. A chain-type window opener with a clutch mechanism according to claim 6, characterized in that: A spring washer is arranged at one end of the central shaft away from the driven gear, one end of the elastic member abuts against the driving gear, and the other end abuts against the spring washer.

8. The chain-type window opener with a clutch mechanism according to claim 7, characterized in that: The spring washer is provided with a clearance groove at one end corresponding to the second transmission gear shaft, and at least two anti-deviation shafts which are plugged and abutted against the box body are arranged on the surface.

9. The chain-type window opener with a clutch mechanism according to claim 5, characterized in that: A worm mounting seat for positioning and rotating the worm is provided at a position of the box body corresponding to the worm.

10. The chain-type window opener with a clutch mechanism according to claim 5, characterized in that: The box body is provided with shaft sleeves at both ends corresponding to the first transmission gear shaft, the second transmission gear shaft, the third transmission gear shaft, the sprocket transmission gear shaft and the central shaft.

Images