Electric window opening device for horizontal sliding window

Abstract

The utility model relates to an electric window opening device for a horizontal sliding window, which comprises a window frame, a window sash and at least one chain type window opener, the window opener is composed of a box body installed on the window frame, a motor in the box body, a chain connected with the window sash and a chain driving assembly, and the chain driving assembly enables a chain wheel to rotate through a gear transmission assembly. The key innovation point is that a gear clutch mechanism is integrated in the gear transmission assembly, and the clutch mechanism comprises a driving gear, a driven gear and a clutch movable block. The driving gear is in linkage with the motor, the driven gear is in linkage with the chain wheel, and the clutch movable block can be operated by an external tool so as to achieve linkage or separation of the driving gear and the driven gear. In emergency, the clutch control groove is manually operated, gear linkage can be quickly relieved, the window sash is manually opened and closed, escape is facilitated, and safety is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of window openers, in particular to an electric window opening device for a horizontally sliding window. 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 if users are away from home, they can open or close windows at any time according to their needs.

[0003] Sliding windows are a common type of window that features a sash that can slide horizontally inward or outward to open. This design allows users to achieve good ventilation in a limited space and is widely used in residential and commercial buildings due to its simple structure and easy operation.

[0004] The electric chain window opener is an automated window control system widely used on sliding windows. It uses an electric motor as a power source and controls the opening and closing of the sliding window through a transmission mechanism of chains and gears. In actual use, the electric chain window opener not only opens and closes the sliding window by electrically driving the motor to drive the input disk to link the output disk, but also manually turns the handle to drive the sliding window to open and close when there is a power outage or the window opener motor is damaged. However, when manually opening and closing the sliding window, since the sliding window is engaged with the output disk, when the sliding window moves, 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 sliding window connected to the window opener will be difficult to open, hindering the user's quick escape. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide an electric window opening device for a sliding window in view of the deficiencies of the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric window opening device for a sliding window, comprising a window frame, a window sash and at least one chain-type window opener for driving the window sash to move closer to or away from the window frame, the chain-type window opener comprising a box body mounted on the window frame, a motor arranged in the box body, a chain fixedly connected to the window sash and a chain drive assembly for driving the chain to extend or retract into the box body and thereby drive the window sash to move forward and backward, the chain drive assembly comprising a sprocket meshing 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, and is characterized in that: 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 clutch arranged on one side of the driving gear. A movable block, a clutch groove or clutch block for accommodating the driven gear and then linking 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 in the center of the driven gear, and it rotates circumferentially in the box body after passing through the driving gear, an elastic member is provided at the end of the driving gear away from the driven gear to cause the driving gear and the driven gear to abut against each other, 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 axially up and down, thereby driving the driving gear and the driven gear to link or separate, the box body has a corresponding notch at the position corresponding to the clutch control groove, an installation cavity for the box body to be installed is provided in the window frame, and a clutch hole corresponding to the notch is provided at the end of the window frame away from the window sash, thereby allowing external tools to enter and exit the box body.

[0007] 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. By setting a spring, 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, so that the clutch groove of the driving gear and the clutch block of the driven gear are offset 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, thereby driving the window sash to move away from or close to the window frame to realize electric forward and backward movement. When the window sash needs to be manually opened and closed, it is only necessary to insert the external tool into the clutch hole on the window frame, and then enter the notch of the box body and then enter the clutch control groove, thereby raising the clutch movable block, and then lifting the driving gear along the central 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 conveniently moved back and forth to drive the chain to extend or retract, which is convenient for escape in an emergency and improves safety.

[0008] The above-mentioned electric window opening device for a sliding window can be further configured as follows: a first mounting portion for fixing the box body in the mounting cavity is provided at both ends of the box body, accessory fixing grooves for accommodating the window opener fixing piece are provided at both ends of the box body, end covers are provided at the positions of the box body corresponding to the accessory fixing grooves, the end covers are detachably connected to the box body through fasteners, the accessory fixing groove is formed between the end covers and the box body, the window opener fixing piece includes a connecting plate for being installed in the accessory fixing groove and a second mounting portion formed by bending after extending out of the accessory fixing groove, the second mounting portion is used to be fixedly connected to the outside of the mounting cavity.

[0009] With the above technical solution, the first mounting part is the original mounting method, and the box body is fixed in the mounting cavity in the window frame by means of screws, bolts, etc. However, considering the huge bearing capacity requirement of the sliding window, in order to improve the stability, it is necessary to set accessory fixing grooves for accommodating the window opener fixing parts at both ends of the box body, so that the box body can be equipped with additional window opener fixing parts, and the end cover is connected to the box body by fasteners (bolts, screws) to form accessory fixing grooves. Such a design enables the window opener fixing parts to be easily installed and disassembled, and enhances the ability to replace different window opener fixing parts when the box body is used in sliding windows of different specifications, thereby improving the convenience and stability and facilitating disassembly and maintenance. The window opener fixing part includes a connecting plate and a second mounting part, so that the window opener is stably connected to the box body through the connecting plate, and is fixedly connected to the window frame outside the mounting cavity through the second mounting part, thereby stably fixing the window opener box body in the mounting cavity, and improving the stability when opening and closing the window sash.

[0010] The above-mentioned electric window opening device for a sliding window can be further configured as follows: positioning pins and positioning holes corresponding to each other are provided between the end cover and the box body, and a fixing hole for a fastener to pass through and then connect with the box body is provided on the window opener fixing piece.

[0011] By adopting the above technical solution, the positioning pins and the positioning holes between the end cover and the window opener body correspond to each other, ensuring the accurate alignment of the fixing parts during installation and improving the stability and reliability of the installation.

[0012] The above-mentioned electric window opening device for a sliding window can be further configured as follows: the second mounting part corresponds to one end of the first mounting part and is provided with a fixed mounting surface which is bent and parallel to the first mounting surface, and a reinforcing plate is provided between the connecting plate and the fixed mounting surface, and the reinforcing plate is against the box body.

[0013] By adopting the above technical solution, the second mounting part is formed by extending and bending the connecting plate, and one end is bent to be parallel to the first mounting part. Such a design provides an additional fixing point and increases the stability of the installation. In this way, the first mounting part and the fixed mounting surface are placed on the same mounting surface to increase the connection strength. The reinforcing plate between the connecting plate and the fixed mounting surface is offset from the box body. Such a structural design can disperse the force, improve the overall load-bearing capacity, and enhance the stability of the window opener installation.

[0014] The above-mentioned electric window opening device for a sliding window can be further configured as follows: the clutch control groove has an inclined slide that gradually narrows along the direction from the driving gear to the driven gear.

[0015] By adopting the above technical solution, 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 also rises from the low to the high part, thereby ensuring that under the same specification of the notch, the clutch movable block can be raised to a higher distance, and the clutch movable block moves up and down axially more smoothly, which is convenient for controlling the engagement and separation of the clutch mechanism.

[0016] The above-mentioned electric window opening device for a sliding window can be further configured as follows: a clutch guide shaft is provided on 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 lifted and lowered axially along the clutch guide shaft, and the clutch movable block is arranged between the driven gear and the driving gear.

[0017] 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.

[0018] The above-mentioned electric window opening device for a sliding window can be further configured as follows: the elastic member is a spring, and the diameter of one end of the spring is larger than the diameter of the other end.

[0019] 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.

[0020] The above-mentioned electric window opening device for a sliding window can be further configured as follows: the clutch movable block is a U-shaped structure and is inserted at both ends of the driving gear.

[0021] 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.

[0022] The above-mentioned electric window opening device for a sliding window 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.

[0023] By adopting the above technical solution, through the combination of a worm, multiple transmission gear shafts and gears, precise transmission ratio and force transmission can be achieved, torque and carrying capacity can be improved, and large sliding windows can be driven to achieve stable and quiet forward and backward movement of the window sashes.

[0024] The above-mentioned electric window opening device for a sliding window 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 is against the driving gear, and the other end is against the spring washer, a yield 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 and against the box body.

[0025] By adopting the above technical solution, the spring washers and elastic parts are used in combination to limit the maximum lifting height of the driving gear to avoid affecting other gear structures. The design of the clearance groove and anti-axis deviation can ensure the stability of the second transmission gear shaft during operation and prevent deviation.

[0026] The utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0028] Figure 2 A three-dimensional schematic diagram of an embodiment of the utility model Figure 2 .

[0029] Figure 3 It is a schematic structural diagram of a chain-type window opener according to an embodiment of the utility model.

[0030] Figure 4 It is a three-dimensional schematic diagram of the gear transmission assembly in the linkage state according to the embodiment of the utility model.

[0031] Figure 5It is a three-dimensional schematic diagram of the gear transmission assembly in a separated state according to an embodiment of the utility model.

[0032] Figure 6 It is a schematic diagram of the structure of the gear transmission assembly according to an embodiment of the utility model.

[0033] Figure 7 The structure of the gear transmission assembly of the utility model is shown in FIG. Figure 2 .

[0034] Figure 8 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.

[0035] Fig. 9 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 .

[0036] Fig.10 It is a structural schematic diagram of the first mounting portion and the second mounting portion of an embodiment of the utility model.

[0037] Fig.11 The structure of the first mounting part and the second mounting part of the embodiment of the utility model is shown in FIG. Figure 2 . Implementation

[0038] like Figure 1-Figure 9As shown, an electric window opening device for a horizontally-sliding window comprises a window frame A, a window sash B and two chain-type window openers for driving the window sash B to approach or move away from the window frame A, the chain-type window openers are respectively mounted on both sides of the window frame A, the chain-type window opener comprises a box body 1 mounted on the window frame A, a motor 2 arranged in the box body 1, a chain 3 fixedly connected to the window sash B and a chain driving assembly for driving the chain 3 to extend or retract into the box body 1 and thereby drive the window sash B to move forward and backward, the chain driving assembly comprises a sprocket 31 meshing with the chain 3, a gear transmission assembly arranged between the motor 2 and the sprocket 31, the motor 2 drives the sprocket 31 to rotate through the gear transmission assembly, the gear transmission assembly comprises a gear clutch mechanism, the gear clutch mechanism comprises a driving gear 4 axially arranged in the box body 1 and linked to the motor 2, a driven gear 5 linked to the sprocket 31 and a clutch movable block 6 arranged on one side of the driving gear 4, a clutch block 6 is arranged in the driving gear 4 There is a clutch groove 41 for the driven gear 5 to be accommodated and linked, and a clutch block 51 adapted to the clutch groove 41 is provided on the driven gear 5. A central shaft 52 is provided in the center of the driven gear 5, and it passes through the driving gear 4 and rotates circumferentially in the box body 1. The end of the driving gear 5 away from the driven gear 4 is provided with a spring 7 for causing the driving gear 4 to abut against the driven gear 5. The diameter of one end of the spring 7 is larger than the diameter of the other end. The clutch movable block 6 abuts against the surface of the driving gear 4, and the surface has a clutch control groove 61 for inserting an external tool C (a flat-blade screwdriver) to drive the clutch movable block 6 to axially rise and fall, thereby driving the driving gear 4 to be linked or separated from the driven gear 5. The box body 1 is provided with a corresponding notch 11 at the position corresponding to the clutch control groove 61. The window frame A is provided with an installation cavity A1 for the box body 1 to be installed, and the end of the window frame A away from the window sash B is provided with a clutch hole A2 corresponding to the notch 11 for the external tool C to enter and exit the box body 1. 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 is provided with a clutch guide shaft 12 at the clutch movable block 6 corresponding to the clutch guide shaft 12. The clutch movable block 6 is inserted in the clutch movable block 6 and makes the clutch movable block 6 rise and fall 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-deflection shafts 523 abutting against the box body 1 are arranged on the surface.

[0039] like Figure 4 , Figure 5As 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.

[0040] like Figure 1 , Figure 2 , Fig.10 , Fig.11 As shown, both ends of the box body 1 are provided with a first mounting portion 17 for fixing the box body 1 in the mounting cavity A1, both ends of the box body 1 are provided with an accessory fixing groove 180 for accommodating the window opener fixing member 18, and the box body 1 is provided with an end cover 19 at the position corresponding to the accessory fixing groove 180, and the end cover 19 is detachably connected to the box body 1 through a bolt 191, and the accessory fixing groove 180 is formed between the end cover 19 and the box body 1, and the window opener fixing member 18 includes a connecting plate 181 for being installed in the accessory fixing groove 180 and a second mounting portion formed by bending after extending out of the accessory fixing groove 180 182, the second mounting portion 182 is used for fixed connection with the outer side of the mounting cavity A1, and a positioning pin 192 and a positioning hole 193 corresponding to each other are provided between the end cover 19 and the box body 1, and a fixing hole 183 for the bolt 191 to pass through and then connect with the box body 1 is provided on the window opener fixing member 18, and one end of the second mounting portion 182 corresponding to the first mounting portion 17 is provided with a fixed mounting surface 1821 that is bent and parallel to the first mounting portion 17, and a reinforcing plate 1822 is provided between the connecting plate 181 and the fixed mounting surface 1821, and the reinforcing plate 1822 is against the box body 1.

[0041] like Figure 1-Figure 11As shown, when the electric window opening device for the sliding window of the utility model is working, the box body 1 is directly installed in the installation cavity A1 of the window frame A, and the chain 3 is directly connected to the window sash B through the window sash mounting seat. 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 and then push or pull back the window sash B, so as to realize the electric opening and closing of the sliding window. 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 clutch hole A2, and then insert it into the clutch control groove 61 through the notch 11 of the box body 1, so that the external tool A (Slotted screwdriver) gradually lifts the clutch movable block 6 along the inclined slide 62. At this time, by rotating the external tool A (slotted screwdriver), 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 linkage between the driving gear 4 and 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 quickly opened 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. An electric window opening device for a sliding window, comprising a window frame, a window sash, and at least one chain-type window opener for driving the window sash to move closer to or away from the window frame, wherein the chain-type window opener comprises a box body mounted on the window frame, a motor disposed in the box body, a chain fixedly connected to the window sash, and a chain drive assembly for driving the chain to extend or retract into the box body and thus drive the window sash to move forward and backward, wherein the chain drive assembly comprises a sprocket engaged with the chain and a gear transmission assembly disposed between the motor and the sprocket, wherein the motor drives the sprocket to rotate through the gear transmission assembly, and wherein: 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 rotates circumferentially in the box body after passing through the driving gear. An elastic member for causing the driving gear to abut against the driven gear is provided at one end of the driving gear away from the driven gear. The clutch movable block abuts against the surface of the driving gear, and the surface has a clutch control groove for driving the clutch movable block to axially rise and fall after an external tool is inserted, thereby driving the driving gear to be linked or separated from the driven gear. A corresponding notch is provided at the position of the box body corresponding to the clutch control groove, and an installation cavity for the box body to be installed is provided in the window frame, and a clutch hole corresponding to the notch is provided at one end of the window frame away from the window sash, thereby allowing external tools to enter and exit the box body.

2. The electric window opening device for a sliding window according to claim 1, characterized in that: Both ends of the box body are provided with a first mounting portion for fixing the box body in the mounting cavity, both ends of the box body are provided with an accessory fixing groove for accommodating the window opener fixing piece, the box body is provided with an end cover at the corresponding accessory fixing groove, the end cover is detachably connected to the box body through a fastener, the accessory fixing groove is formed between the end cover and the box body, the window opener fixing piece includes a connecting plate for being installed in the accessory fixing groove and a second mounting portion formed by bending after extending out of the accessory fixing groove, the second mounting portion is used to be fixedly connected to the outside of the mounting cavity.

3. The electric window opening device for a sliding window according to claim 2, characterized in that: Positioning pins and positioning holes are arranged corresponding to each other between the end cover and the box body, and a fixing hole for a fastener to pass through and then be connected to the box body is opened on the window opener fixing piece.

4. The electric window opening device for a sliding window according to claim 3, characterized in that: One end of the second mounting portion corresponding to the first mounting portion is provided with a fixed mounting surface which is bent to be parallel to the first mounting portion. A reinforcing plate is provided between the connecting plate and the fixed mounting surface, and the reinforcing plate abuts against the box body.

5. An electric window opening device for a sliding window according to any one of claims 1 to 4, characterized in that: The clutch control groove is provided with an oblique slideway which gradually narrows along the direction from the driving gear to the driven gear.

6. The electric window opening device for a sliding window according to claim 5, 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.

7. The electric window opening device for a sliding window according to claim 5, 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.

8. The electric window opening device for a sliding window according to claim 5, characterized in that: The clutch movable block is a U-shaped structure and is inserted at both ends of the driving gear.

9. The electric window opening device for a sliding window according to claim 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.

10. The electric window opening device for a sliding window according to claim 9, characterized in that: A spring washer is provided at one end of the central shaft away from the driven gear, one end of the elastic member is against the driving gear, and the other end is against the spring washer, a yield 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.

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