Casement window capable of being automatically opened, closed and locked

Abstract

The invention relates to the technical field of doors and windows, and discloses an automatic opening, closing and locking casement window which comprises a window frame, a door and window frame and a door and window frame, the driving mechanism is arranged on the bottom side of the window frame and provided with a swing arm capable of rotating around the axis in the vertical direction, and a transmission part is arranged on the swing arm; the locking mechanism comprises a lock seat and a transmission part in transmission connection with the lock seat, the lock seat is slidably arranged on one side of the window frame in the up-down direction, and the transmission part is slidably arranged on the bottom side of the window frame in the left-right direction; the window sash is hinged to the other side of the window frame, a lock point is arranged on the side, close to the lock seat, of the window sash, the bottom side of the window sash is in transmission connection with the transmission part, and when the window sash rotates to close the hole, the transmission part is in transmission connection with the transmission piece, the swing arm continues to rotate and drives the transmission piece to slide through the transmission part, so that the lock seat is connected with the lock point in a matched mode. According to the window sash profile, the space requirement for the window sash profile is effectively reduced, the extremely narrow window sash profile can be achieved, and the overall appearance is improved.

Description

Technical Field

[0001] This invention relates to the field of door and window technology, and in particular to an automatic opening and closing casement window. Background Technology

[0002] Casement windows consist of a window frame and a movable sash. The movable sash is hinged to one side of the window frame, and rotating it opens or closes the opening formed by the frame. With technological advancements, some motorized casement windows have emerged. These windows use a motor on the frame to drive hinges, opening or closing the sash. To further secure the sash to the frame, a handle motor is installed on its side. This handle motor engages or disengages the locking points and seats between the sash and the frame, locking or unlocking the sash. However, this type of sash requires the installation of the motor and other drive components inside the frame, resulting in a thicker frame, narrowing the window frame opening, and making the sash heavier. Therefore, there is a pressing need for a casement window that reduces the thickness of the sash frame. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic opening and closing locking casement window to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The solution to the technical problem of this invention is:

[0005] An automatic opening and closing casement window includes: a window frame enclosing an opening; a drive mechanism disposed on the bottom side of the window frame, the drive mechanism having a swing arm rotatable about a vertical axis, the swing arm having a transmission part; a locking mechanism including a lock seat and a transmission member slidably connected to the lock seat, the lock seat being slidably disposed on one side of the window frame in the vertical direction, the transmission member being slidably disposed on the bottom side of the window frame in the horizontal direction; and a window sash hinged to the other side of the window frame, the window sash having a locking point on the side near the lock seat, the bottom side of the window sash being slidably connected to the transmission part, when the window sash rotates to close the opening, the transmission part and the transmission member are slidably connected, the swing arm continues to rotate and drives the transmission member to slide through the transmission part, so that the lock seat and the locking point are engaged and connected.

[0006] This technical solution has at least the following beneficial effects: When it is necessary to rotate the window sash to close the opening formed by the window frame, the swing arm inside the drive motor rotates. The swing arm drives the window sash to rotate and close the opening through the transmission part. At this time, the transmission part is connected to the transmission component. When the swing arm continues to rotate, the transmission part drives the transmission component to slide, and the transmission component drives the lock seat connected to it to slide up or down on one side of the window frame, so that the lock seat and the locking point installed on one side of the window sash cooperate with each other to achieve the locking and fixing of the window sash and the window frame; when it is necessary to open the opening formed by the window frame, the swing arm inside the drive mechanism rotates in the opposite direction. At this time, the transmission part... First, the drive mechanism drives the lock seat to slide in the opposite direction on the window frame via the transmission component, causing the lock seat to disengage from the locking point installed on one side of the window sash, thus locking the window sash to the window frame. Then, the swing arm continues to rotate in the opposite direction, causing the transmission part to disengage from the transmission component, and then driving the window sash away from the opening, realizing the window opening function. In this way, by setting a single drive mechanism on the bottom side of the window frame, the window sash can be moved and the window sash can be locked without the need for a separate drive source to lock the window sash. This effectively reduces the space requirement for the window sash profile, which is conducive to realizing extremely narrow window sash profiles and improving the overall appearance.

[0007] As a further improvement to the above technical solution, the transmission part includes a transmission arm and a first elastic member. The transmission arm is rotatably connected to the end of the swing arm, and the first elastic member is connected between the transmission arm and the swing arm. The first elastic member has a tendency to form an angle between the transmission arm and the swing arm. The transmission arm is transmissionally connected to the swing arm, and the transmission arm can be transmissionally connected to the transmission member.

[0008] As a further improvement to the above technical solution, a connecting rod is rotatably connected to the transmission arm, and a slider is rotatably connected to the end of the connecting rod away from the transmission arm. The slider is slidably connected to the bottom side of the window sash in the left-right direction.

[0009] As a further improvement to the above technical solution, the linkage is rotatably connected to the end of the transmission arm near the swing arm, the first elastic element is a spring, one end of the spring is connected to the end of the transmission arm away from the swing arm, and the other end of the spring is connected to the swing arm.

[0010] As a further improvement to the above technical solution, the locking mechanism includes a first transmission rod, a corner device, and a second transmission rod. The corner device is disposed inside the bottom corner of the window frame. The first transmission rod is slidably connected to one side of the window frame in the vertical direction. The lock seat is connected to the first transmission rod. The bottom end of the first transmission rod is connected to one movable end of the corner device. The second transmission rod is slidably connected to the bottom side of the window frame in the horizontal direction. One end of the second transmission rod is connected to the other movable end of the corner device. The transmission component is connected to the other end of the transmission rod.

[0011] As a further improvement to the above technical solution, a second elastic element is connected between the window frame and the transmission component. The second elastic element has a tendency to make the transmission component slide away from the corner device, and the swing arm continues to rotate and slides against the transmission component through the transmission arm.

[0012] As a further improvement to the above technical solution, a gear is rotatably connected to the end of the transmission arm away from the swing arm, and multiple tooth grooves are provided on the side of the transmission component near the gear. When the window sash rotates to close the opening, the gear can mesh with the multiple tooth grooves.

[0013] As a further improvement to the above technical solution, multiple lock seats are spaced apart along the vertical direction on the first transmission rod, and locking points are respectively provided on one side of the window sash corresponding to the positions of the multiple lock seats.

[0014] As a further improvement to the above technical solution, a stop is provided on the bottom side of the window frame, and when the lock seat is connected with the lock point, the swing arm abuts against the stop.

[0015] As a further improvement to the above technical solution, the driving mechanism includes a motor disposed on the bottom side of the window frame, and the motor is drivenly connected to the swing arm.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of the present invention, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0018] Figure 1 This is a front view of the drive mechanism and locking structure of the present invention, in which the transmission part and the transmission component are disengaged.

[0019] Figure 2 This is a top view of the drive structure and transmission component of the present invention, in which the lock seat and the locking point are disengaged.

[0020] Figure 3 This is a top view of the drive structure and transmission component of the present invention, in which the lock seat and the locking point are in a mating connection state.

[0021] In the attached diagram: 110-swing arm, 121-transmission arm, 122-first elastic element, 123-gear, 130-connecting rod, 131-slider, 140-stop element, 150-motor, 210-lock seat, 220-transmission element, 221-second elastic element, 222-tooth groove, 230-locking point, 240-first transmission rod, 250-corner device, 260-second transmission rod. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0024] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] In the description of this application, the use of terms such as "one embodiment," "some embodiments," "an example," "some instances," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] Reference Figure 1 An automatic opening and closing casement window includes a window frame, a drive mechanism, a locking mechanism, and a window sash. The window frame has an opening within it. The drive mechanism is located on the bottom side of the window frame and has a swing arm 110 that can rotate about a vertical axis. A transmission part is provided on the swing arm 110. The locking mechanism includes a lock seat 210 and a transmission component 220, which are connected. The lock seat 210 is slidably disposed on one side of the window frame in the vertical direction, and the transmission component 220 is slidably disposed on the bottom side of the window frame in the horizontal direction. That is, when the transmission component 220 moves in the horizontal direction, it can drive the lock seat 210 to slide in the vertical direction. The window sash is hinged to the other side of the window frame. There are various installation methods, such as using hinges, pivots, or connecting shafts. The window sash has a locking point 230 on the side near the lock seat 210. The bottom side of the window sash is connected to the transmission part. When the window sash rotates to close the opening, the transmission part is connected to the transmission component 220. The swing arm 110 continues to rotate and drives the transmission component 220 to slide through the transmission part, so that the lock seat 210 and the locking point 230 are engaged. Conversely, when the window sash rotates away from the opening, the transmission part first drives the lock seat 210 to slide through the transmission component 220, so that the lock seat 210 is disengaged from the locking point 230. The swing arm 110 continues to rotate, the transmission part is disengaged from the transmission component 220, and the swing arm 110 drives the window sash to rotate away from the opening.

[0028] As described above, when it is necessary to rotate the window sash to close the opening formed by the window frame, the swing arm 110 inside the drive motor 150 rotates. The swing arm 110 drives the window sash to rotate and close the opening through the transmission part. At this time, the transmission part is connected to the transmission component 220. When the swing arm 110 continues to rotate, the transmission part drives the transmission component 220 to slide. The transmission component 220 drives the lock seat 210 connected to it to slide up or down on one side of the window frame, so that the lock seat 210 and the locking point 230 installed on one side of the window sash cooperate with each other to lock and fix the window sash to the window frame. When it is necessary to open the opening formed by the window frame, the swing arm 110 inside the drive mechanism rotates in the opposite direction. The transmission unit first drives the lock seat 210 to slide in the opposite direction on the window frame via the transmission component 220, so that the lock seat 210 and the locking point 230 installed on one side of the window sash are disengaged, thus first locking and fixing the window sash to the window frame. Then, the swing arm 110 continues to rotate in the opposite direction, so that the transmission unit and the transmission component 220 are disengaged from the transmission connection, and then the window sash is driven away from the opening to realize the window opening function. In this way, by setting a single drive mechanism on the bottom side of the window frame, the window sash can be driven to move and the window sash can be locked. There is no need to configure a drive source to lock the window sash, which effectively reduces the space requirement of the window sash profile, which is conducive to realizing an extremely narrow window sash profile and improving the overall appearance.

[0029] The transmission unit is mainly used to provide power for the rotation of the window sash, and also needs to provide power to the transmission component 220 on the window frame after the window sash has rotated to its position. Figure 2 and Figure 3As shown in the figure, as a specific embodiment of the transmission unit, the transmission unit includes a transmission arm 121 and a first elastic member 122. The transmission arm 121 is rotatably connected to the end of the swing arm 110, and the rotation axis of the transmission arm 121 extends in the vertical direction. The first elastic member 122 is connected between the transmission arm 121 and the swing arm 110. The first elastic member 122 has a tendency to form an angle between the transmission arm 121 and the swing arm 110. In practical applications, the angle formed between the transmission arm 121 and the swing arm 110 is greater than 90 degrees, so that the swing arm 110 and the transmission arm 121 can be gradually unfolded as the swing arm 110 continues to rotate. The transmission arm 121 is connected to the swing arm 110 in a transmission manner, and the transmission arm 121 can be connected to the transmission member 220 in a transmission manner. When the window sash is opened, the elastic force of the first elastic element 122 causes the transmission arm 121 to rotate to form an angle with the swing arm 110. When it is necessary to lock the window sash and the window frame together, the window sash rotates to close the opening, and the swing arm 110 drives the transmission arm 121 to rotate to connect with the transmission element 220. As the swing arm 110 continues to rotate, the transmission arm 121 will rotate around the swing arm 110, and the transmission arm 121 and the swing arm 110 will gradually unfold. The transmission element 220 can be connected through the transmission arm 121. Pushing away from the swing arm 110 causes the lock seat 210 to move vertically, thus cooperating with the locking point 230. When it is necessary to release the window sash from the window frame, the swing arm 110 reverses its transmission. At this time, the elastic force of the first elastic element 122 can pull the swing arm 110 closer to the transmission arm 121. The transmission arm 121 and the swing arm 110 are in a gradually folded state. Through the transmission arm 121, the transmission element 220 can be pulled closer to the swing arm 110, thereby causing the lock seat 210 and the locking point 230 to disengage.

[0030] In a specific embodiment of the transmission connection between the transmission unit and the window sash, a connecting rod 130 is rotatably connected to the transmission arm 121, and a slider 131 is rotatably connected to one end of the connecting rod 130 away from the transmission arm 121. The rotation axes at both ends of the connecting rod 130 extend in the vertical direction, and the slider 131 is slidably connected to the bottom side of the window sash in the horizontal direction. When the window sash is not locked to the window frame, the transmission arm 121 and the swing arm 110 form an angle. At this time, the slider 131 slides to the left at the end of its stroke on the bottom side of the window sash. When the window sash needs to be rotated, the power of the swing arm 110 is transmitted to the window sash through the transmission arm 121, the connecting rod 130, and the slider 131. Then, when the window sash is locked to the window frame, the transmission arm 121 and the swing arm 110 gradually unfold. At this time, as the transmission arm 121 pushes the transmission component 220, it will drive the end of the connecting rod 130 to slide to the right on the bottom side of the window sash. This maintains the transmission connection between the transmission arm 121 and the window sash, and prevents the window sash from continuing to move as the transmission arm 121 rotates.

[0031] The first elastic element 122 is mainly used to maintain the angle between the transmission arm 121 and the swing arm 110. A torsion spring can be selected. In order to improve the stability of the window sash when the swing arm 110 drives the window sash to rotate through the linkage 130, in this embodiment, the linkage 130 is rotatably connected to the end of the transmission arm 121 near the swing arm 110. The first elastic element 122 is a spring. One end of the spring is connected to the end of the transmission arm 121 away from the swing arm 110, and the other end of the spring is connected to the swing arm 110. Since one end of the spring is connected to the end of the transmission arm 121 away from the swing arm 110, the connection point of the spring on the transmission arm 121 and the rotation point of the transmission arm 121 relative to the swing arm 110 form a long force arm. This helps the spring maintain the state of pulling the transmission arm 121 to form a certain angle with the swing arm 110. Meanwhile, the connection point of the connecting rod 130 on the transmission arm 121 and the rotation point of the transmission arm 121 relative to the swing arm 110 form a short force arm. This allows the swing arm 110 to drive the window sash to rotate more stably and synchronously through the transmission arm 121 and the connecting rod 130 when driving the window sash to rotate. This effectively improves the stability of driving the window sash to rotate.

[0032] The locking mechanism has a transmission structure that can transmit power from the transmission rod to the lock seat 210. Specifically, the locking mechanism includes a first transmission rod 240, a corner joint 250, and a second transmission rod 260. The corner joint 250 is disposed in the bottom corner of the window frame. The first transmission rod 240 is slidably connected to one side of the window frame in the vertical direction. The lock seat 210 is connected to the first transmission rod 240. The bottom end of the first transmission rod 240 is connected to one movable end of the corner joint 250. The second transmission rod 260 is slidably connected to the bottom side of the window frame in the horizontal direction. One end of the second transmission rod 260 is connected to the other movable end of the corner joint 250. The transmission component 220 is connected to the other end of the transmission rod. The rotator is installed at the bottom corner of the window frame. It is used to change the direction of power transmission and realize 90-degree power transmission. There is a movable end that can move up and down at the top of the rotator 250. Another movable end that can move left and right is provided at the position of the rotator 250 corresponding to the transmission component 220. The two movable ends are connected by a transmission structure. For example, the two movable ends are connected by a bent metal plate, or the power is transmitted by the cooperation of gears 123 and chains. When the transmission arm 121 pushes the transmission component 220, the power is transmitted to the second transmission rod 260 through the first transmission rod 240 and the angler 250, thereby causing the lock seat 210 on the second transmission rod 260 to move upward, realizing the mutual cooperation between the lock seat 210 and the locking point 230. When the transmission arm 121 moves away from the transmission component 220, the transmission component 220 slides with the transmission arm 121, and is transmitted to the second transmission rod 260 through the first transmission rod 240 and the angler 250, thereby causing the lock seat 210 on the second transmission rod 260 to move downward, realizing the mutual disengagement between the lock seat 210 and the locking point 230.

[0033] In a specific embodiment of the transmission connection between the transmission arm 121 and the transmission member 220, a second elastic member 221 is connected between the window frame and the transmission member 220. The second elastic member 221 has a tendency to cause the transmission member 220 to slide away from the corner unit 250. The second elastic member 221 can be an elastic structure such as elastic rubber, torsion spring, or spring. The swing arm 110 continues to rotate and slides against the transmission member 220 through the transmission arm 121. When it is necessary for the lock seat 210 and the locking point 230 to cooperate with each other, the transmission arm 121 pushes the transmission member 220, the transmission member 220 moves closer to the corner unit 250, and squeezes the second elastic member 221, causing the second elastic member 221 to elastically deform. When it is necessary for the lock seat 210 and the locking point 230 to disengage, the transmission arm 121 moves away from the transmission member 220. At this time, the elastic force of the second elastic member 221 can push the transmission member 220 away from the corner unit 250, thereby driving the lock seat 210 away from the locking point 230.

[0034] In order to improve the stability of the force applied by the transmission arm 121 to the transmission component 220, in this embodiment, the end of the transmission arm 121 away from the swing arm 110 is rotatably connected to a gear 123, and the transmission component 220 is provided with a plurality of tooth grooves 222 on the side near the gear 123. When the window sash is rotated to close the opening, the gear 123 can mesh with the plurality of tooth grooves 222. When the transmission arm 121 rotates to abut against the transmission member 220, the gear 123 at the end of the transmission part meshes with the multiple tooth grooves 222 on one side of the transmission member 220. When the transmission arm 121 pushes the transmission member 220, the transmission arm 121 itself will rotate relative to the transmission member 220. At this time, the gear 123 can rotate relative to the transmission member 220, maintaining the meshing state between the gear 123 and the multiple tooth grooves 222. This can improve the stability of the transmission arm 121 when applying force to the transmission member 220, prevent the transmission arm 121 from slipping due to misalignment with the transmission member 220, and help ensure the smooth connection between the lock seat 210 and the locking point 230.

[0035] To improve the stability of the lock between the window sash and the window frame, in this embodiment, multiple lock seats 210 are spaced apart along the vertical direction on the first transmission rod 240, and locking points 230 are respectively provided on one side of the window sash corresponding to the positions of the multiple lock seats 210. When the first transmission rod 240 moves vertically, it can drive the multiple lock seats 210 to move simultaneously in the vertical direction, so that the multiple lock seats 210 respectively engage or disengage with the multiple locking points 230. When the multiple lock seats 210 and the multiple locking points 230 engage with each other, locking connection points with the window frame can be formed at different positions of the window sash, thereby effectively improving the stability of the connection between the window sash and the window frame.

[0036] When the swing arm 110 rotates to engage the lock seat 210 and the locking point 230, the rotation drive of the swing arm 110 needs to be stopped. To ensure timely stopping of the swing arm 110, in this embodiment, a stop member 140 is provided on the bottom side of the window frame. When the lock seat 210 and the locking point 230 are engaged, the swing arm 110 abuts against the stop member 140. After the lock seat 210 and the locking point 230 are engaged, the rotation drive of the swing arm 110 stops, and the swing arm 110 also abuts against the stop member 140, which prevents the swing arm 110 from rotating further. This effectively prevents the swing arm 110 from continuing to rotate under inertia, improving the overall stability of operation. In practical applications, the stop member 140 can be made of elastic materials such as rubber, which can reduce damage to the swing arm 110 when it rotates to abut against the stop member 140.

[0037] The drive mechanism includes a drive source capable of rotating the swing arm 110. Specifically, the drive mechanism includes a motor 150 disposed on the bottom side of the window frame, and the motor 150 is drively connected to the swing arm 110. The swing arm 110 can be a rod directly mounted on the bottom side of the window frame, or a structural component connected within a hinge between the window frame and the window sash. The hinge contains a four-bar linkage, in which case the swing arm 110 can be used as a link in the four-bar linkage, or the swing arm 110 can be directly connected to a link in the four-bar linkage. During operation, the motor 150 provides a rotational driving force to the swing arm 110, thereby driving the swing arm 110 to rotate.

[0038] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An automatic opening and closing casement window, characterized in that: include: The window frame is enclosed to form an opening; A drive mechanism is provided on the bottom side of the window frame. The drive mechanism has a swing arm (110) that can rotate about the vertical axis. A transmission part is provided on the swing arm (110). The locking mechanism includes a lock seat (210) and a transmission member (220) connected to the lock seat (210). The lock seat (210) is slidably disposed on one side of the window frame in the vertical direction, and the transmission member (220) is slidably disposed on the bottom side of the window frame in the horizontal direction. The window sash is hinged to the other side of the window frame. A locking point (230) is provided on the side of the window sash near the lock seat (210). The bottom side of the window sash is connected to the transmission part. When the window sash rotates to close the opening, the transmission part is connected to the transmission component (220). The swing arm (110) continues to rotate and drives the transmission component (220) to slide through the transmission part, so that the lock seat (210) and the locking point (230) are engaged and connected.

2. The automatic opening and closing locking casement window according to claim 1, characterized in that: The transmission unit includes a transmission arm (121) and a first elastic member (122). The transmission arm (121) is rotatably connected to the end of the swing arm (110). The first elastic member (122) is connected between the transmission arm (121) and the swing arm (110). The first elastic member (122) tends to form an angle between the transmission arm (121) and the swing arm (110). The transmission arm (121) is transmissionally connected to the swing arm (110). The transmission arm (121) can be transmissionally connected to the transmission member (220).

3. The automatic opening and closing locking casement window according to claim 2, characterized in that: A connecting rod (130) is rotatably connected to the transmission arm (121). A slider (131) is rotatably connected to one end of the connecting rod (130) away from the transmission arm (121). The slider (131) is slidably connected to the bottom side of the window sash in the left-right direction.

4. The automatic opening and closing locking casement window according to claim 3, characterized in that: The linkage (130) is rotatably connected to the end of the transmission arm (121) near the swing arm (110). The first elastic element (122) is a spring, one end of which is connected to the end of the transmission arm (121) away from the swing arm (110), and the other end of which is connected to the swing arm (110).

5. The automatic opening and closing locking casement window according to claim 2, characterized in that: The locking mechanism includes a first transmission rod (240), a corner bracket (250), and a second transmission rod (260). The corner bracket (250) is located inside the bottom corner of the window frame. The first transmission rod (240) is slidably connected to one side of the window frame in the vertical direction. The lock seat (210) is connected to the first transmission rod (240). The bottom end of the first transmission rod (240) is connected to one movable end of the corner bracket (250). The second transmission rod (260) is slidably connected to the bottom side of the window frame in the horizontal direction. One end of the second transmission rod (260) is connected to the other movable end of the corner bracket (250). The transmission component (220) is connected to the other end of the transmission rod.

6. The automatic opening and closing locking casement window according to claim 5, characterized in that: A second elastic element (221) is connected between the window frame and the transmission member (220). The second elastic element (221) has a tendency to make the transmission member (220) slide away from the corner device (250). The swing arm (110) continues to rotate and slides against the transmission member (220) through the transmission arm (121).

7. The automatic opening and closing locking casement window according to claim 6, characterized in that: The transmission arm (121) is rotatably connected to a gear (123) at the end away from the swing arm (110). The transmission component (220) is provided with a plurality of tooth grooves (222) on the side near the gear (123). When the window sash is rotated to close the opening, the gear (123) can mesh with the plurality of tooth grooves (222).

8. The automatic opening and closing locking casement window according to claim 6, characterized in that: The lock base (210) is provided in multiple positions along the vertical direction on the first transmission rod (240), and the window sash is provided with locking points (230) at the positions of the multiple lock bases (210) respectively.

9. The automatic opening and closing locking casement window according to claim 1, characterized in that: A stop (140) is provided on the bottom side of the window frame. When the lock seat (210) is connected with the lock point (230), the swing arm (110) abuts against the stop (140).

10. The automatic opening and closing locking casement window according to claim 1, characterized in that: The driving mechanism includes a motor (150) disposed on the bottom side of the window frame, and the motor (150) is connected to the swing arm (110) in a driving connection.

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