Electric screw type window opener with noise reduction mechanism

Abstract

The utility model relates to an electric screw type window opener with a noise reduction mechanism, which comprises an electric screw type window opener body, the electric screw type window opener body comprises an outer circular tube, a motor, a screw rod, a nut sleeve and a driving tube, the driving tube is arranged outside the outer circular tube in a penetrating manner and is telescopic in the outer circular tube, the end part of the outer circular tube corresponding to the screw rod is provided with a connecting sleeve, and the connecting sleeve is connected with the motor. A plurality of bearings are arranged in the connecting sleeve, one end of the screw rod penetrates through the bearings and then is connected with the output end of the motor, the screw rod is connected with the output end of the motor through a coupler, and a noise reduction mechanism is arranged between the motor and the connecting sleeve and comprises an elastic vibration reduction piece arranged outside the coupler. According to the window opener, extra vibration and noise caused by decentration are reduced, the noise reduction effect is further improved, interference to the surrounding environment is remarkably reduced, the use comfort is improved, meanwhile, equipment loss caused by vibration is reduced, and the service life of the window opener is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a screw type window opener, especially an electric screw type window opener with a noise reduction mechanism. BACKGROUND

[0002] With the improvement of home level, the types and shapes of windows are more and more various. It is difficult to open some special position windows, such as smoke exhaust passage window and light skylight. In order to facilitate and ensure the safety of opening the window, a window opener is used to open the window. The existing window openers are divided into manual and electric types. The electric window opener includes screw type window opener, curved arm type window opener and chain type window opener. The screw type window opener is generally used for high position side window and top window, and is usually installed vertically on the window surface. The screw type window opener uses a motor to drive the rotation of a screw rod, the screw rod is connected with a rod body, the rod body is driven to reciprocate by the screw rod, and the other end of the rod body is connected with the frame of the window. The motor, the screw rod and the rod body are arranged in a sleeve, and the sleeve is fixed on the window frame or wall through a fixed support.

[0003] A utility model with publication number CN210768319U discloses an electric screw type window opener, and relates to the technical field of electric window opening. The electric screw type window opener comprises an outer pipe, a motor, a screw rod, a nut sleeve, a drive pipe, a front end cover and a rear end cover. The other end of the drive pipe is slidably arranged in the front end cover and located outside the outer pipe. The motor is connected with an adapter in the form of a polygonal body. One end of the screw rod is rotatably arranged in the adapter. Threaded holes are formed in the side wall of the outer pipe. A countersunk screw is threadedly connected to the threaded holes. A washer is fixedly arranged at the end of the adapter away from the motor. A sealing ring is arranged in the outer pipe and towards the front end cover. The nut sleeve is located between the washer and the sealing ring. A fixing ring is arranged on the outer circumferential surface of the nut sleeve. An arc-shaped groove is arranged on the outer circumferential surface of the fixing ring. The outer pipe is sealed. The motor and the screw rod are fixedly arranged in the outer pipe. The structure is stable, and the use safety performance is improved.

[0004] However, as shown in the prior art, the adapter of the electric screw rod is made of metal. When the motor works, the vibration of the whole adapter will affect the whole screw type window opener through the adapter, resulting in a noise of up to 70-75 decibels during the opening and closing of the whole window opener. According to the noise level classification, the noise above 70 decibels will interfere with the conversation, affect the work efficiency, and even cause accidents. Therefore, it is urgent to reduce the noise generated by the electric screw type window opener. Figure 4 SUMMARY

[0005] The utility model solves the technical problems of the prior art and provides an electric screw type window opener with a noise reduction mechanism.

[0006] ​To achieve the above object, the utility model provides the following technical scheme: A kind of electric screw type window opener with noise reduction mechanism, including electric screw type window opener body, the electric screw type window opener body includes outer tube, motor being arranged in outer tube, screw rod being connected with motor, nut sleeve being rotated in the screw rod outside and the drive pipe being connected with nut sleeve at one end, the end of the other end of drive pipe is arranged in the outside of outer tube and telescopic in outer tube, the end of outer tube corresponding screw rod is equipped with connecting sleeve, several bearings are equipped in connecting sleeve, the one end of screw rod is connected with the output end of motor after passing through bearing, it is connected between the output end of screw rod and motor by shaft coupling, noise reduction mechanism is equipped between motor and connecting sleeve, the elastic damping part being arranged in the outside of shaft coupling, the one end of elastic damping part is connected with motor, and the other end is connected with connecting sleeve.

[0007] Adopt the above technical scheme, the elastic damping part can be rubber, silica gel and other damping materials, by being arranged between motor and connecting sleeve the noise reduction mechanism containing elastic damping part, utilize the structure that one end of elastic damping part is connected with motor and the other end is connected with connecting sleeve, effectively absorb the vibration generated when motor works, reduce the noise generated in the process of opening and closing window opener, simultaneously, screw rod and motor output end are connected by shaft coupling, shaft coupling not only ensures the stability of power transmission, also improves the concentricity of connection, reduces the additional vibration and noise caused by different concentricity, further improves the noise reduction effect significantly reduces the interference to surrounding environment, improves the comfort of use, also reduces the loss of vibration to equipment, prolongs the service life of window opener.

[0008] The above-mentioned electric screw type window opener with noise reduction mechanism can be further provided as follows: the one end of the elastic damping part corresponding to the motor is provided with a first metal insert detachably connected with the motor, and the one end corresponding to the connecting sleeve is provided with a second metal insert detachably connected with the connecting sleeve, and the first and second metal inserts are integrally formed with the elastic damping part.

[0009] Adopt the above technical scheme, the first metal insert is detachably connected with the motor, and the second metal insert is detachably connected with the connecting sleeve, which makes the elastic damping part easily installed and detached, and facilitates maintenance and replacement, the first and second metal inserts are integrally formed with the elastic damping part, which ensures the stability and reliability of the connection, the integrally formed design avoids the vibration transmission caused by loose or falling of the connecting piece, further improves the noise reduction effect and the structural strength, ensures that it will not be damaged due to vibration or external force in the long-term use process, prolongs the service life of the elastic damping part, and improves the overall reliability of the window opener.

[0010] The electric screw type window opener with the noise reduction mechanism can be further provided with a plurality of first screw seats on the first metal insert, the motor is provided with a first connecting hole corresponding to the first screw seats, the first connecting hole is provided with a first fastener threadedly connected with the first screw seat, a plurality of second screw seats are provided on the second metal insert, the connecting sleeve is provided with a second connecting hole corresponding to the second screw seats, and the second connecting hole is provided with a second fastener threadedly connected with the second screw seat.

[0011] The first metal insert is provided with a plurality of first screw seats, the motor is provided with a first connecting hole corresponding to the first screw seats, and the first connecting hole is provided with a first fastener threadedly connected with the first screw seat, the second metal insert is provided with a plurality of second screw seats, the connecting sleeve is provided with a second connecting hole corresponding to the second screw seats, and the second connecting hole is provided with a second fastener threadedly connected with the second screw seat, the elastic damping member is detachably connected with the motor and the connecting sleeve, the stability and reliability of the connection are ensured, the installation and maintenance are facilitated, the maintenance cost is reduced, and the noise reduction effect is improved.

[0012] The first screw seats are equidistantly distributed around the elastic damping member, adjacent first screw seats are connected with each other through first connecting ribs, the cross section of the first connecting ribs is smaller than that of the first screw seats, the elastic damping member is provided with a first slot for accommodating the first screw seats, the elastic damping member wholly or partially covers the first connecting ribs, the second screw seats are equidistantly distributed around the elastic damping member, adjacent second screw seats are connected with each other through second connecting ribs, the cross section of the second connecting ribs is smaller than that of the second screw seats, the elastic damping member is provided with a second slot for accommodating the second screw seats, the elastic damping member wholly or partially covers the second connecting ribs, the elastic damping member is provided with a center cavity penetrating the center of the elastic damping member, and the coupling is arranged in the center cavity.

[0013] Adopting the technical scheme, the first screw seat is distributed equidistantly around the elastic damping member and is connected to each other through the first connecting rib, and the cross section of the first connecting rib is smaller than the first screw seat, which makes the first screw seat be firmly fixed on the elastic damping member and be accommodated in the first slot formed on the elastic damping member, and ensures the stability and uniformity of the structure. Similarly, the second screw seat is also distributed equidistantly around the elastic damping member and is connected to each other through the second connecting rib, and the cross section of the second connecting rib is smaller than the second screw seat, and the second screw seat is accommodated in the second slot formed on the elastic damping member, which also enhances the fixing effect of the second screw seat and avoids the first and second metal inserts from being separated. The center of the elastic damping member is provided with a through center cavity to provide a space for the coupling, which not only optimizes the space utilization, but also ensures the stability of the coupling and the effective transmission of the torque. The overall design improves the structural strength and stability of the elastic damping member, ensures that the coupling can effectively transmit the torque, reduces the transmission of vibration, further reduces noise, and improves the operation efficiency and service life of the entire window opener.

[0014] The electric screw type window opener with the noise reduction mechanism can be further provided with a plurality of positioning protrusions on the end surface of the connecting sleeve corresponding to the elastic damping member, and the elastic damping member is provided with a positioning groove matched with the positioning protrusions.

[0015] Adopting the technical scheme, a plurality of positioning protrusions are arranged on the end surface of the connecting sleeve corresponding to the elastic damping member, and the elastic damping member is provided with a positioning groove matched with the positioning protrusions, so that the elastic damping member and the connecting sleeve can be quickly and accurately positioned, thereby simplifying the installation process and improving the installation efficiency. The cooperation of the positioning protrusions and the groove ensures the correct alignment between the elastic damping member and the connecting sleeve, avoids misalignment or deviation, and further ensures the effectiveness of the noise reduction mechanism and the stability of the overall structure.

[0016] The electric screw type window opener with the noise reduction mechanism can be further provided with a plurality of positioning protrusions on the end surface of the connecting sleeve corresponding to the elastic damping member, and the elastic damping member is provided with a positioning groove matched with the positioning protrusions.

[0017] Adopting the technical scheme, the structure of the torsion column enhances the torsional resistance of the second screw seat, prevents torsional deformation due to stress during torque transmission, ensures the connection between the second screw seat and the connecting sleeve to be more stable and reliable, thereby improving the rigidity of the entire elastic damping system, enhancing the durability of the structure, prolonging the service life of the window opener, and improving the long-term operation reliability thereof.

[0018] The electric screw type window opener with the noise reduction mechanism can be further provided with a plurality of positioning protrusions on the end surface of the connecting sleeve corresponding to the elastic damping member, and the elastic damping member is provided with a positioning groove matched with the positioning protrusions.

[0019] The elastic damping part is made of rubber material and integrally injection molded with the first and second metal inserts, which ensures the close combination between the elastic damping part and the metal inserts, improves the stability and durability of the overall structure, and the rubber material has good elasticity and damping performance, which can effectively absorb the vibration generated during the operation of the motor, reduce the vibration transmission, thereby reducing the noise generated by the window opener during opening and closing. At the same time, the integrally injection molded mode simplifies the production process, reduces the production cost, and makes the connection between the elastic damping part and the metal insert more firm and less likely to loosen or fall off during use, thereby enhancing the reliability of the entire noise reduction mechanism. In addition, the combination of rubber and metal inserts also improves the adaptability of the window opener to different environments, making the product more durable and prolonging the service life of the product.

[0020] The above-mentioned electric screw type window opener with a noise reduction mechanism can be further provided with: the outer circular pipe is fixedly connected with the connecting sleeve through a plurality of screws, two bearings are arranged in the connecting sleeve, and the connecting sleeve is provided with a mounting cavity for isolating the two bearings. The screw rod is provided with a light axis part rotating against the bearings and a linkage part fixedly connected with the coupling.

[0021] The above-mentioned electric screw type window opener with a noise reduction mechanism can be further provided with: the outer circular pipe is fixedly connected with the connecting sleeve through a plurality of screws, two bearings are arranged in the connecting sleeve, and the connecting sleeve is provided with a mounting cavity for isolating the two bearings. The screw rod is provided with a light axis part rotating against the bearings and a linkage part fixedly connected with the coupling.

[0022] The above-mentioned electric screw type window opener with a noise reduction mechanism can be further provided with: the linkage part and the light axis part are provided with a retreat stop part, the outer circumferential surface of the retreat stop part is provided with a locking washer, and the two ends of the retreat stop part corresponding to the locking washer are provided with retreat stop nuts threadedly connected with the retreat stop part.

[0023] The linkage part and the optical axis part of the screw rod are provided with a retreat-stop part to prevent the screw rod from moving axially under high torque load, ensuring the stability of the transmission system, the outer periphery of the retreat-stop part is provided with a locking washer to enhance the retreat-stop effect and protect the surface of the retreat-stop part from damage, and the retreat-stop part is provided with retreat-stop nuts at both ends of the locking washer, which are connected with the retreat-stop part through threads and can be conveniently installed and removed to realize accurate adjustment and fixation of the position of the screw rod, thereby improving the reliability and safety of the window opener operation, facilitating maintenance and repair, ensuring long-term stable operation of the window opener and prolonging the service life of the equipment.

[0024] The electric screw type window opener with a noise reduction mechanism can be further provided with an output shaft at the output end of the motor, the bearing is a thrust ball bearing, the output shaft and the linkage part are both non-circular section shafts, and the coupling has a socket for connecting the output shaft and the linkage part.

[0025] The output end of the motor is provided with an output shaft, the output shaft and the linkage part of the screw rod are both designed as non-circular sections to improve the concentricity and connection stability when connected with the coupling, the coupling is designed with a special socket for connecting the non-circular section (direction, spline, triangle, etc.) output shaft and linkage part, ensuring that the torque output by the motor can be smoothly and efficiently transmitted to the screw rod, the bearing is a thrust ball bearing, which can bear axial load, further ensuring accurate positioning and low-friction operation of the output shaft during operation, thereby improving the smoothness and reliability of the window opener operation, optimizing the power transmission efficiency, reducing energy loss, reducing noise and vibration, prolonging the service life of the window opener and ensuring its long-term stable operation.

[0026] The utility model will be further described in connection with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a three-dimensional schematic view of the embodiment of the utility model.

[0028] Figure 2 It is an explosion Figure 1 .

[0029] Figure 3 It is an explosion Figure 2 .

[0030] Figure 4 It is a sectional view of the embodiment of the utility model.

[0031] Figure 5 It is Figure 4 a local enlarged view.

[0032] Figure 6 A three-dimensional schematic view of the noise reduction mechanism of the embodiment of the present application Figure 1 .

[0033] Figure 7 A three-dimensional schematic view of the noise reduction mechanism of the embodiment of the present application Figure 2 .

[0034] Figure 8 A three-dimensional schematic view of the noise reduction mechanism of the embodiment of the present application Figure 1 .

[0035] Figure 9 A three-dimensional schematic view of the noise reduction mechanism of the embodiment of the present application Figure 2 .

[0036] Figure 10 A three-dimensional schematic view of the noise reduction mechanism of the embodiment of the present application DETAILED DESCRIPTION

[0037] As Figures 1-10As shown, a electric screw window opener with noise reduction mechanism, including electric screw window opener body, electric screw window opener body including outer circular tube 1, motor 2 arranged in outer circular tube 1, screw rod 3 connected with motor 2, nut sleeve 4 threaded rotating on screw rod 3 and drive pipe 41 with one end connected with nut sleeve 4, the other end of drive pipe 41 is arranged outside outer circular tube 1 and extends and retracts in outer circular tube 1, outer circular tube 1 is provided with connecting sleeve 5 corresponding to the end of screw rod 3, connecting sleeve 5 is provided with two mounting cavities 51 arranged respectively, thrust ball bearing 52 is arranged in mounting cavity 51, the optical axis part 31 of screw rod 3 is arranged through thrust ball bearing 52 and connected with input shaft 21 of motor 2 through coupling 6, noise reduction mechanism is arranged between motor 2 and connecting sleeve 5, noise reduction mechanism includes elastic damping part 7 arranged outside coupling 6, elastic damping part 7 includes rubber damping body 71 and first metal insert 72 and second metal insert 73 arranged at both ends, first metal insert 72 and second metal insert 73 are integrally formed with rubber damping body 71 by injection molding, first metal insert 72 is provided with a plurality of first screw seats 721 distributed around coupling 6 at equal intervals, and adjacent first screw seats 721 are connected with each other through first connecting rib 722, the cross section of first connecting rib 722 is smaller than that of first screw seat 721, first slot 711 is formed in rubber damping body 71 for accommodating first screw seat 721, rubber damping body 71 covers first connecting rib 722, second metal insert 73 is provided with a plurality of second screw seats 731 distributed around coupling 6 at equal intervals, and adjacent second screw seats 731 are connected with each other through second connecting rib 732, the cross section of second connecting rib 732 is smaller than that of second screw seat 731, second slot 712 is formed in rubber damping body 71 for accommodating second screw seat 731, rubber damping body 71 covers second connecting rib 722, center cavity 713 is arranged in the center of rubber damping body 71, coupling 6 is arranged in center cavity 713, and the center is provided with socket 61 penetrating coupling 6, motor 2 is provided with first connecting hole 22 corresponding to first screw seat 721, first connecting hole 22 is provided with first fastener (first screw) threaded connected with first screw seat 721, connecting sleeve 5 is provided with second connecting hole 53 corresponding to second screw seat 731, second connecting hole 53 is provided with second fastener (second screw) threaded connected with second screw seat 731, anti-torsion column 733 is arranged at the end of second screw seat 731 away from second connecting hole 53, four positioning protrusions 54 are arranged on the surface of connecting sleeve 5 corresponding to one end of rubber damping body 71, positioning recess 714 is arranged on rubber damping body 71 for clamping positioning protrusion 54, connecting sleeve 5 is detachably connected with elastic damping part 7 through first screw, motor 2 is detachably connected with elastic damping part 7 through second screw.

[0038] As Figures 1-7As shown, the outer tube 1 is fixedly connected with the surface of the connecting sleeve 5 through a plurality of countersunk screws 11, the screw rod 3 is provided with a linkage part 32 inserted with the socket 61 of the shaft coupling 6, a retreat-stop part 33 is arranged between the linkage part 32 and the light shaft part 31, the outer circumferential surface of the retreat-stop part 33 is provided with a locking washer 8, the retreat-stop part 33 is provided with a retreat-stop nut 81 threadedly connected with the retreat-stop part 33 at both ends corresponding to the locking washer 8, and the output shaft 21 and the linkage part 32 are both square shafts inserted with the socket 61, facilitating the connection transmission.

[0039] The electric screw type window opener has the following functions:

[0040] 1. Power transmission: the output shaft 21 of the motor 2 is connected with the light shaft part 31 of the screw rod 3 through the shaft coupling 6, when the motor 2 is started, the output shaft 21 rotates, and drives the screw rod 3 to rotate through the shaft coupling 6;

[0041] 2. Noise reduction function: the elastic damping part 7 includes a rubber damping body 71 and first and second metal inserts 72 and 73, and is installed between the motor 2 and the connecting sleeve 5, when the motor 2 operates, the vibration generated is transmitted to the rubber damping body 71 through the first and second metal inserts 72 and 73, the rubber damping body 71 absorbs and weakens the vibration, thereby reducing the noise, reducing the noise from 70-75 decibels to 55-60 decibels, significantly reducing the interference to the surrounding environment, improving the use comfort and strength, and also reducing the vibration loss of the equipment, prolonging the service life of the window opener;

[0042] 3. Bearing support: the light shaft part 31 of the screw rod 3 is arranged in the thrust ball bearing 52 and connected with the input shaft 21 of the motor 2. The thrust ball bearing 52 supports the screw rod 3, reduces friction, and ensures the stable rotation of the screw rod 3;

[0043] 4. Drive pipe extension and contraction: when the screw rod 3 rotates, the nut sleeve 4 is driven to move through the thread, the nut sleeve 4 is connected with one end of the drive pipe 41, so that the drive pipe 41 extends and contracts in the outer tube 1, realizing the opening and closing of the window;

[0044] 5. Installation and fixation: the outer tube 1 is fixedly connected with the connecting sleeve 5 through the countersunk screws 11, ensuring the stability of the entire window opener; the connecting sleeve 5 is provided with two installation cavities 51, and each installation cavity is provided with a thrust ball bearing 52, further supporting the screw rod 3 and ensuring its stable operation;

[0045] 6. Retreat-stop and locking: the retreat-stop part 33 is arranged between the linkage part 32 and the light shaft part 31 of the screw rod 3, the outer circumferential surface of the retreat-stop part 33 is provided with the locking washer 8, and the retreat-stop nut 81 threadedly connected with the retreat-stop part 33 is arranged at both ends corresponding to the locking washer 8, preventing the screw rod 3 from moving axially under high torque;

[0046] 7、Precise positioning: the connecting sleeve 5 is provided with four positioning protrusions 54 on the surface of one end corresponding to the rubber damping body 71, and the rubber damping body 71 is provided with positioning grooves 714 for clamping the positioning protrusions 54, so as to ensure the precise alignment between the elastic damping part 7 and the connecting sleeve 5;

[0047] 8、Detachable connection: the motor 2 is threadedly connected with the second screw seat 731 on the second metal insert 73 of the elastic damping part 7 through the first screw, and the connecting sleeve 5 is threadedly connected with the second screw seat 731 on the first metal insert 72 of the elastic damping part 7 through the second screw, so as to realize the detachable connection and facilitate maintenance, replacement and installation.

Claims

1. An electric screw-type window opener with a noise reduction mechanism, comprising an electric screw-type window opener body, the electric screw-type window opener body including an outer circular tube, a motor disposed within the outer circular tube, a screw rod connected to the motor, a nut sleeve threaded around the screw rod, and a drive tube with one end connected to the nut sleeve, the other end of the drive tube passing through the outside of the outer circular tube and extending and retracting within the outer circular tube, a connecting sleeve being provided at the end of the outer circular tube corresponding to the end of the screw rod, the connecting sleeve containing a plurality of bearings, one end of the screw rod passing through the bearings and connected to the output end of the motor, characterized in that: The screw rod is connected to the output end of the motor via a coupling. A noise reduction mechanism is provided between the motor and the connecting sleeve. The noise reduction mechanism includes an elastic damping component disposed outside the coupling. One end of the elastic damping component is connected to the motor, and the other end is connected to the connecting sleeve.

2. The electric screw-type window opener with noise reduction mechanism according to claim 1, characterized in that: The elastic damping component has a first metal insert that is detachably connected to the motor at one end, and a second metal insert that is detachably connected to the connecting sleeve at one end. The first and second metal inserts are integrally formed with the elastic damping component.

3. The electric screw-type window opener with noise reduction mechanism according to claim 2, characterized in that: The first metal insert is provided with a plurality of first screw seats, the motor is provided with a first connecting hole corresponding to the first screw seat, and a first fastener is provided in the first connecting hole and threadedly connected to the first screw seat. The second metal insert is provided with a plurality of second screw seats, the connecting sleeve is provided with a second connecting hole corresponding to the second screw seat, and a second fastener is provided in the second connecting hole and threadedly connected to the second screw seat.

4. The electric screw-type window opener with noise reduction mechanism according to claim 3, characterized in that: The first screw seats are equidistantly distributed around the elastic damper, and adjacent first screw seats are connected to each other by a first connecting rib. The cross-section of the first connecting rib is smaller than that of the first screw seat. The elastic damper has a first slot for accommodating the first screw seat. The elastic damper completely or partially covers the first connecting rib. The second screw seats are equidistantly distributed around the elastic damper, and adjacent second screw seats are connected to each other by a second connecting rib. The cross-section of the second connecting rib is smaller than that of the second screw seat. The elastic damper has a second slot for accommodating the second screw seat. The elastic damper completely or partially covers the second connecting rib. The elastic damper has a through-hole central cavity, and the coupling is disposed in the central cavity.

5. An electric screw-type window opener with a noise reduction mechanism according to claim 4, characterized in that: The connecting sleeve has several positioning protrusions on one end surface corresponding to the elastic damping component, and the elastic damping component has positioning grooves that engage with the positioning protrusions.

6. The electric screw-type window opener with noise reduction mechanism according to claim 4, characterized in that: The end of the second screw seat away from the second connecting hole extends with an anti-torsion post.

7. An electric screw-type window opener with a noise reduction mechanism according to any one of claims 2-6, characterized in that: The elastic damping component is made of rubber and is integrally injection molded with the first and second metal inserts.

8. An electric screw-type window opener with a noise reduction mechanism according to any one of claims 1-6, characterized in that: The outer tube is fixedly connected to the connecting sleeve by several screws. The connecting sleeve is provided with two bearings and has an installation cavity that isolates the two bearings. The spiral rod is provided with a smooth shaft that rotates against the bearings and a linkage that is fixedly connected to the coupling.

9. An electric screw-type window opener with a noise reduction mechanism according to claim 8, characterized in that: A backstop is provided between the linkage part and the optical axis part. A locking washer is provided on the outer circumferential surface of the backstop. A backstop nut is provided at both ends of the backstop corresponding to the locking washer and is threadedly connected to the backstop.

10. An electric screw-type window opener with a noise reduction mechanism according to claim 8, characterized in that: The motor has an output shaft at its output end, the bearing is a thrust ball bearing, both the output shaft and the linkage are non-circular cross-section shafts, and the coupling has a connector for connecting the output shaft and the linkage.

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