A flip energy-saving window capable of opening at a large angle

Abstract

The invention discloses a flip energy-saving window which can be opened at a large angle, comprising a window frame and a window sash; the upper and lower inner walls of the window frame are provided with sliding grooves, and a guide block is provided for sliding in the sliding groove; the window sash comprises a sash frame, and the upper and lower sides of the sash frame are rotatably connected with the guide block so that the sash frame can rotate relative to the window frame, and the sash frame is provided with two oppositely arranged glasses, and an edge sealing strip frame is provided between the two glasses, and a cavity is jointly formed between the two glasses and the edge sealing strip frame, and the cavity is filled with argon gas which can isolate heat; one of the glass surfaces is coated with a unidirectional transmission coating which can unidirectionally transmit visible light; the upper and lower sides of the sash frame are provided with a first sealing unit, and the left and right sides of the sash frame are provided with a second sealing unit; the heat can be isolated and the transmission direction of the window sash to visible light can be adjusted, so as to realize the large-angle opening of the window sash and achieve better energy-saving effect, and the structure is more flexible to use.

Description

Technical Field

[0001] The invention relates to the technical field of windows, and in particular to a flip-type energy-saving window that can be opened at a large angle. Background Art

[0002] Existing energy-saving windows are generally coated with a one-way transmission coating on the glass surface to achieve the function of isolating visible light in only one direction. While avoiding privacy leakage, it can also prevent heat from being exchanged between indoor and outdoor through the windows, achieving energy-saving effects.

[0003] However, since most existing energy-saving windows are hinged to window frames through hinges, the window sashes can only be opened within a limited angle, and cannot be opened at a large angle, nor can the window sashes be completely flipped to change the light transmission direction. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a flip energy-saving window that can be opened at a large angle, which can isolate heat and adjust the transmission direction of the window sash to visible light, thereby realizing the large-angle opening of the window sash and achieving better energy-saving effects, and the structure is more flexible to use.

[0005] To achieve the above object, the specific scheme of the present invention is as follows: a flip energy-saving window that can be opened at a large angle, comprising a window frame and a window sash; the upper and lower inner walls of the window frame are provided with a slide groove, and a guide block is provided in the slide groove for sliding;

[0006] The window sash comprises a sash frame, the upper and lower sides of which are rotatably connected to the guide blocks so that the sash frame can rotate relative to the window frame, the sash frame is provided with two oppositely arranged glass sheets, an edge sealing strip frame is provided between the two glass sheets, a cavity is formed between the two glass sheets and the edge sealing strip frame, and the cavity is filled with argon gas that can insulate heat; a one-way transmission coating that can transmit visible light in one direction is coated on the surface of one of the glass sheets;

[0007] The upper and lower sides of the fan frame are provided with a first sealing unit, and the left and right sides of the fan frame are provided with a second sealing unit.

[0008] Optionally, the first sealing unit and the second sealing unit can slide relative to the sash frame;

[0009] The two ends of the first sealing unit are slidably hinged with the second sealing unit, a transmission assembly is connected between the two ends of the two second sealing units, a positioning seat is slidably provided in the middle of the upper and lower sides of the fan frame, the positioning seat is slidably hinged with the transmission assembly, a stop pin is provided on the positioning seat, a driving handle is provided on the left or right side of the fan frame, and a second sealing unit located on the same side as the driving handle is provided with a bayonet pin movably engaged with the driving handle;

[0010] The guide block is provided with a first anti-rotation hole for cooperating with the anti-rotation pin, and the two ends of the slide groove are provided with second anti-rotation holes for cooperating with the anti-rotation pin.

[0011] Optionally, the driving handle includes a rotating shaft rotatably connected to the fan frame and a first handle fixedly connected to one end of the rotating shaft; the rotating shaft is provided with a disc, the disc is provided with a cam groove, and the bayonet is movably engaged in the cam groove.

[0012] Optionally, the transmission assembly includes a swing arm axially connected to the fan frame, both ends of the swing arm are hinged with connecting rods, and the connecting rods are hinged to the second sealing unit;

[0013] The positioning seat is provided with a driving hole, one end of the swing arm is provided with a driving pin, and the driving pin is movably embedded in the driving hole.

[0014] Optionally, the driving hole includes a first section extending horizontally and a second section extending obliquely upward.

[0015] Optionally, the second sealing unit is provided with a first accommodating groove, a clamping block is slidably provided in the first accommodating groove, a clamping pin is provided on the clamping block, a first spring is also provided in the first accommodating groove, and two ends of the first spring abut against the groove wall and the clamping block of the first accommodating groove.

[0016] Optionally, both ends of the second sealing unit are provided with transmission pins, and both ends of the first sealing unit are provided with inclined holes, and the transmission pins are movably embedded in the corresponding inclined holes.

[0017] Optionally, the first handle is provided with a second receiving groove, a positioning pin is slidably inserted in the second receiving groove, and a second spring is also provided in the second receiving groove;

[0018] A plurality of positioning grooves for cooperating with the positioning pins are arranged in the fan frame.

[0019] Optionally, the driving handle further includes a second handle arranged opposite to the first handle, and the second handle is fixedly connected to the first handle.

[0020] Optionally, the first sealing unit and the second sealing unit both include a sliding bar that is slidably arranged and a rubber sealing strip arranged on the sliding bar.

[0021] The beneficial effects of the present invention are as follows: by arranging the window sash to be able to rotate and slide relative to the window frame, and arranging a cavity filled with argon gas in the window sash and coating the glass with a unidirectional transmission coating that unidirectionally transmits visible light, the present invention can insulate heat and adjust the transmission direction of the window sash to visible light, thereby achieving a large-angle opening of the window sash and achieving better energy-saving effects, and the structure is more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an exploded schematic diagram of the present invention;

[0023] Figure 2 yes Figure 1 A local enlarged schematic diagram of the middle A;

[0024] Figure 3 is a cross-sectional schematic diagram of the present invention when the window sash is closed;

[0025] Figure 4 yes Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0026] Figure 5 It is a schematic diagram of the structure of the present invention when the window sash is rotated to be perpendicular to the window frame;

[0027] Figure 6 is a schematic diagram of the structure of the present invention when the window sash is fully opened;

[0028] Figure 7 is a cross-sectional schematic diagram of the present invention when the window sash is fully opened;

[0029] Figure 8 yes Figure 7 A partial enlarged schematic diagram of point C in the middle;

[0030] Fig. 9 is an exploded schematic diagram of the window sash of the present invention;

[0031] Fig.10 yes Fig. 9 A partial enlarged schematic diagram of point D in the middle;

[0032] Fig.11 yes Fig. 9 A partial enlarged schematic diagram of point E in the middle;

[0033] Fig.12 yes Fig. 9 A partial enlarged schematic diagram of point F in the middle;

[0034] Fig.13 It is a structural schematic diagram of the driving handle of the present invention;

[0035] Fig.14 is a cross-sectional schematic diagram of a driving handle of the present invention;

[0036] Explanation of the accompanying drawings: 1. Window frame; 11. Slide groove; 12. Second anti-rotation hole; 2. Window sash; 21. Sash frame; 211. Positioning groove; 22. Glass; 23. Edge banding strip frame; 24. First sealing unit; 241. Inclined hole; 25. Second sealing unit; 251. First accommodating groove; 252. Block; 253. First spring; 254. Bayonet; 255. Transmission pin; 261. Swing arm; 262. Connecting rod; 263. Driving pin; 27. Positioning seat; 271. Anti-rotation pin; 272. Driving hole; 28. Driving handle; 281. Rotating shaft; 282. First handle; 283. Disc; 284. Cam groove; 285. Positioning pin; 286. Second spring; 287. Second handle; 3. Guide block; 31. First anti-rotation hole. DETAILED DESCRIPTION

[0037] like Figures 1 to 14 As shown, the flip energy-saving window that can be opened at a large angle described in this embodiment includes a window frame 1 fixedly installed on the wall of an external building and a window sash 2 installed in the frame of the window frame 1; the upper and lower inner walls of the window frame 1 are both provided with a slide groove 11, and a guide block 3 is slidably provided in the slide groove 11;

[0038] The window sash 2 includes a sash frame 21, and the upper and lower sides of the sash frame 21 are rotatably connected to the guide block 3, so that the sash frame 21 can rotate relative to the window frame 1 with the connection point between the sash frame 21 and the guide block 3 as the axis, and at the same time, the sash frame 21 can slide relative to the window frame 1 along the slide groove 11. The sash frame 21 is provided with two oppositely arranged glasses 22, and an edge sealing strip frame 23 is provided between the two glasses 22. A cavity is formed between the two glasses 22 and the edge sealing strip frame 23, and the cavity is filled with argon gas that can isolate heat; the surface of one of the glasses 22 is coated with a unidirectional transmission coating that can unidirectionally transmit visible light; the upper and lower sides of the sash frame 21 are provided with a first sealing unit 24, and the left and right sides of the sash frame 21 are provided with a second sealing unit 25.

[0039] Specifically, when the flip energy-saving window of the present embodiment needs to open the window sash 2, the window sash 2 is rotated 90 degrees relative to the window frame 1, at which time the window sash 2 and the window frame 1 are in a state of perpendicular intersection, and then the window sash 2 is slid along the slide groove 11 to the edge position of the window frame 1 under the action of the guide block 3, at which time the window sash 2 is in a fully opened state;

[0040] When the window sash 2 needs to be closed, the window sash 2 is first slid to the middle of the window frame 1, and then the window sash 2 is rotated relative to the window frame 1 until the window sash 2 and the window frame 1 are on the same plane. At this time, the first sealing unit 24 and the second sealing unit 25 around the window sash 2 are respectively sealed against the inner wall of the window frame 1 to ensure the sealing between the window sash 2 and the window frame 1, effectively preventing heat exchange, thereby completing the closing of the window sash 2. At the same time, the argon gas in the cavity of the window sash 2 is heat-insulated, thereby preventing the external heat from being transferred to the room through the window sash 2, or preventing the indoor heating from being transferred to the outside through the window sash 2, thereby achieving a better energy-saving effect;

[0041] When it is necessary to change the transmission direction of visible light of the window sash 2, the window sash 2 can be rotated 180 degrees relative to the window frame 1, so that the external visible light can be transmitted into the room through the window sash 2, or the external light can be blocked from being transmitted into the room through the window sash 2. It can be adjusted according to the actual use environment requirements. The structure is flexible and can also achieve energy-saving effects.

[0042] In this embodiment, the window sash 2 is arranged to rotate and slide relative to the window frame 1, a cavity filled with argon gas is arranged in the window sash 2, and a unidirectional transmission coating that unidirectionally transmits visible light is coated on the glass 22, thereby isolating heat and adjusting the transmission direction of the window sash 2 to visible light, thereby realizing a large-angle opening of the window sash 2 and achieving better energy-saving effects, and the structure is more flexible to use.

[0043] Furthermore, since the window sash 2 of this embodiment can rotate 180 degrees relative to the window frame 1, it is convenient to clean the glass 22 on both sides.

[0044] In the flip-up energy-saving window described in this embodiment, in some embodiments, the first sealing unit 24 and the second sealing unit 25 can slide relative to the sash frame 21; the two ends of the first sealing unit 24 are respectively slidably hinged with the corresponding second sealing unit 25, and a transmission assembly is connected between the two ends of the two second sealing units 25. A positioning seat 27 is slidably installed in the middle of the upper and lower sides of the sash frame 21, and the positioning seat 27 can slide up and down relative to the sash frame 21. The positioning seat 27 is slidably hinged with the transmission assembly, and the positioning seat 27 is provided with a stop pin 271. A driving handle 28 is provided on the left or right side of the sash frame 21, and the second sealing unit 25 located on the same side as the driving handle 28 is provided with a pin 254 that is movably engaged with the driving handle 28; the guide block 3 is provided with a first stop hole 31 for cooperating with the stop pin 271, and both ends of the slide groove 11 are provided with second stop holes 12 for cooperating with the stop pin 271.

[0045] Specifically, when the window sash 2 needs to be opened, the driving handle 28 cooperates with the bayonet 254 to drive the second sealing units 25 on the left and right sides to slide inward, so that the second sealing units 25 are out of sealing contact with the inner wall of the window frame 1. At the same time, the second sealing units 25 on the left and right sides synchronously drive the first sealing units 24 on the upper and lower sides to slide inward through the transmission assembly, and the transmission assembly drives the positioning seat 27 to slide outward, so that the first sealing unit 24 is out of sealing contact with the inner wall of the window frame 1. At this time, the sealing units around the sash frame 21 are all out of sealing contact with the inner wall of the window frame 1, in preparation for rotating the window sash 2. After completion, push The movable window sash 2 is rotated 90 degrees relative to the window frame 1, and the window sash 2 is slid to the edge of the window frame 1. At this time, the first anti-rotation hole 31 on the guide block 3 corresponds to the position of the second anti-rotation hole 12, and then the driving handle 28 is continued to cooperate with the bayonet 254, so that the sealing unit around the sash frame 21 continues to slide inward. At this time, with the cooperation of the transmission component, the anti-rotation pin 271 is driven to pass through the first anti-rotation hole 31 and then inserted into the second anti-rotation hole 12, so that the window sash 2, the guide block 3 and the window frame 1 are locked to form a rigid whole, so as to achieve the locking of the rotation and sliding direction of the window sash 2, so that the window sash 2 can maintain a large-angle opening state;

[0046] When the window sash 2 needs to be closed, the driving handle 28 cooperates with the bayonet 254 to make the stop pin 271 move out from the first stop hole 31 and the second stop hole 12, thereby releasing the lock on the rotation and sliding directions of the window sash 2, and then the window sash 2 is slid to the middle of the window frame 1, and then the window sash 2 is rotated to be on the same plane with the window frame 1, and then the driving handle 28 continues to cooperate with the bayonet 254 to make the first sealing unit 24 and the second sealing unit 25 slide outward respectively, so that the first sealing unit 24 and the second sealing unit 25 are sealed and abutted against the inner wall of the window frame 1, thereby realizing the sealing between the window sash 2 and the window frame 1, thereby completing the closing process of the window sash 2.

[0047] In this embodiment, a sliding hinge is set between the first sealing unit 24 and the second sealing unit 25, the second sealing units 25 are connected by a transmission assembly, the positioning seat 27 is slidingly hinged with the transmission assembly, and the second sealing unit 25 is movably engaged with the driving handle 28 through the bayonet 254. Therefore, the linkage between the first sealing unit 24, the second sealing unit 25 and the stop pin 271 can be achieved by operating the driving handle 28, so that the window sash 2 can be kept in a large-angle open state, the operation is more convenient, and the structure is more reliable.

[0048] In the flip-up energy-saving window described in this embodiment, in some embodiments, the driving handle 28 includes a rotating shaft 281 rotatably connected to the sash frame 21 and a first handle 282 fixedly connected to one end of the rotating shaft 281; a disc 283 is convexly provided on the outer peripheral wall of the rotating shaft 281, and a cam groove 284 is opened on the disk surface of the disc 283, and the pin 254 is movably engaged in the cam groove 284.

[0049] Specifically, when the user rotates the first handle 282 clockwise, the first handle 282 drives the rotating shaft 281 to rotate, and the rotating shaft 281 drives the disc 283 to rotate. The disc 283 cooperates with the cam groove 284 and the bayonet 254 to drive the second sealing unit 25 to slide inward, and the second sealing unit 25 drives the first sealing unit 24 to slide inward synchronously through the transmission assembly, so that the first sealing unit 24 and the second sealing unit 25 are separated from the sealing contact with the inner wall of the window frame 1, thereby reducing the resistance to the rotation of the window sash 2, and then driving the window sash 2 to rotate relative to the window frame 1. At the same time, the second sealing unit 25 drives the positioning seat 27 to slide outward through the transmission assembly. When the window 2 moves to the edge of the window frame 1, the positions of the first anti-rotation hole 31 and the second anti-rotation hole 12 correspond, and the first handle 282 is rotated clockwise again, and the disc 283 cooperates with the cam groove 284 and the bayonet 254 to continue to drive the first sealing unit 24 and the second sealing unit 25 to slide inward, and at the same time, the second sealing unit 25 continues to drive the positioning seat 27 to move outward through the transmission assembly, and the anti-rotation pin 271 penetrates the first anti-rotation hole 31 and is inserted into the second anti-rotation hole 12, so that the window sash 2, the guide block 3 and the window frame 1 are locked to form a rigid whole, so as to lock the window sash 2 in the rotation and sliding direction, so that the window sash 2 can maintain a large-angle open state;

[0050] When the window sash 2 needs to be closed, the user rotates the first handle 282 counterclockwise, and the first handle 282 drives the rotating shaft 281 to rotate. The disc 283 cooperates with the cam groove 284 and the latch 254 to drive the second sealing unit 25 and the first sealing unit 24 to slide outward. At this time, the second sealing unit 25 drives the positioning seat 27 to slide inward through the transmission assembly, so that the stop pin 271 moves out of the first stop hole 31 and the second stop hole 12, thereby releasing the lock on the rotation and sliding direction of the window sash 2; then the window sash 2 is moved to the middle of the window frame 1, the window sash 2 is rotated to be on the same plane as the window frame 1, and then the first handle 282 is continued to be rotated counterclockwise, so that the second sealing unit 25 and the first sealing unit 24 continue to slide outward, until the first sealing unit 24 and the second sealing unit 25 are sealed and abutted against the inner wall of the window frame 1, thereby completing the closing operation of the window sash 2; compared with the existing switch window operation that can only be flipped outward, the operation is more convenient.

[0051] In the flip-up energy-saving window described in this embodiment, in some embodiments, the transmission assembly includes a swing arm 261 axially connected to the sash frame 21, and both ends of the swing arm 261 are hinged with connecting rods 262, and the connecting rod 262 is hinged to the second sealing unit 25; the positioning seat 27 is provided with a driving hole 272, and one end of the swing arm 261 is provided with a driving pin 263, and the driving pin 263 is movably embedded in the driving hole 272.

[0052] Specifically, when the second sealing unit 25 slides relative to the sash frame 21, the second sealing unit 25 pushes the swing arm 261 to swing through the connecting rod 262. During the swinging process of the swing arm 261, the driving hole 272 and the driving pin 263 cooperate to drive the positioning seat 27 to slide synchronously, thereby realizing the linkage of the anti-rotation pin 271 to achieve locking or unlocking of the window sash 2.

[0053] In the flip energy-saving window described in this embodiment, in some embodiments, the driving hole 272 includes a first section extending horizontally and a second section extending obliquely upward. Compared with only providing the first section, the second section extending obliquely upward in this embodiment can increase the sliding stroke of the stop pin 271 to ensure that the stop pin 271 can be inserted into the second stop hole 12.

[0054] In the flip energy-saving window described in this embodiment, in some embodiments, the second sealing unit 25 is provided with a first receiving groove 251, a block 252 is slidably provided in the first receiving groove 251, a bayonet 254 is provided on the block 252, and a first spring 253 is further provided in the first receiving groove 251, and both ends of the first spring 253 abut against the groove wall of the first receiving groove 251 and the block 252. In this embodiment, the block 252 and the first spring 253 are slidably provided, so that the bayonet 254 is floatingly connected to the second sealing unit 25, so that after the second sealing unit 25 and the first sealing unit 24 abut against the inner wall of the window frame 1, the first handle 282 can still be rotated, so as to prevent the first handle 282 from not rotating to the right position after the second sealing unit 25 and the first sealing unit 24 abut against the inner wall of the window frame 1, and also ensure that the anti-rotation pin 271 has enough sliding stroke to be inserted into the second anti-rotation hole 12, and the structure is more reliable.

[0055] In some embodiments of the flip energy-saving window described in this embodiment, both ends of the second sealing unit 25 are provided with a driving pin 255, and both ends of the first sealing unit 24 are provided with an inclined hole 241, and the driving pin 255 is movably embedded in the corresponding inclined hole 241. In this embodiment, the driving pin 255 is provided to cooperate with the inclined hole 241, so as to achieve synchronous linkage between the first sealing unit 24 and the second sealing unit 25. Specifically, the inclined angle of the inclined hole 241 is set to 45 degrees.

[0056] In some embodiments of the flip-up energy-saving window described in this embodiment, the first handle 282 is provided with a second receiving groove, a positioning pin 285 is slidably inserted in the second receiving groove, and a second spring 286 is also provided in the second receiving groove; a plurality of positioning grooves 211 for cooperating with the positioning pin 285 are provided in the sash frame 21.

[0057] Specifically, in this embodiment, by providing a positioning pin 285 on the first handle 282 and providing a plurality of positioning slots 211 in the fan frame 21, the second spring 286 allows the positioning pin 285 to maintain a tendency to extend out of the second receiving slot, so that when the first handle 282 is rotated to align with the corresponding positioning slot 211, the positioning pin 285 is inserted into the positioning slot 211 under the action of the second spring 286, thereby achieving the positioning of the first handle 282, so that the first handle 282 remains in the current state. Preferably, the positioning slot 211 is a ball-and-socket structure, and the end of the positioning pin 285 away from the second spring 286 is provided as a ball head structure, so that the positioning pin 285 can overcome the elastic force of the second spring 286 and move out of the positioning slot 211 under the action of torsion, thereby performing the positioning and releasing operations of the first handle 282.

[0058] In the flip energy-saving window described in this embodiment, in some embodiments, the driving handle 28 further includes a second handle 287 arranged opposite to the first handle 282, so that the first handle 282 and the second handle 287 are distributed on the front and rear sides of the sash frame 21, and the second handle 287 is fixedly connected to the first handle 282. In this embodiment, by providing the second handle 287, the user can drive the disc 283 to rotate through the second handle 287 after rotating the window sash 2 180 degrees, thereby realizing the opening and closing operation of the window sash 2.

[0059] In the flip energy-saving window described in this embodiment, in some embodiments, the first sealing unit 24 and the second sealing unit 25 both include a sliding bar that is slidably arranged and a rubber sealing strip arranged on the sliding bar. In this embodiment, the sliding bar is used to drive the rubber sealing strip to slide. Specifically, the sliding bar of the second sealing unit 25 is fixedly hinged with the connecting rod 262, and the sliding bar of the second sealing unit 25 and the sliding bar of the first sealing unit 24 are slidably hinged with the inclined hole 241 through the transmission pin 255.

Claims

1. A flip energy-saving window that can be opened at a large angle, characterized in that: It includes a window frame and a window sash; the upper and lower inner walls of the window frame are provided with sliding grooves, and a guide block is provided for sliding in the sliding groove; The window sash comprises a sash frame, the upper and lower sides of which are rotatably connected to the guide blocks so that the sash frame can rotate relative to the window frame, the sash frame is provided with two oppositely arranged glass sheets, an edge sealing strip frame is provided between the two glass sheets, a cavity is formed between the two glass sheets and the edge sealing strip frame, and the cavity is filled with argon gas that can insulate heat; a one-way transmission coating that can transmit visible light in one direction is coated on the surface of one of the glass sheets; The upper and lower sides of the fan frame are provided with a first sealing unit, and the left and right sides of the fan frame are provided with a second sealing unit; The first sealing unit and the second sealing unit can slide relative to the fan frame; The two ends of the first sealing unit are slidably hinged with the second sealing unit, a transmission assembly is connected between the two ends of the two second sealing units, a positioning seat is slidably provided in the middle of the upper and lower sides of the fan frame, the positioning seat is slidably hinged with the transmission assembly, a stop pin is provided on the positioning seat, a driving handle is provided on the left or right side of the fan frame, and a second sealing unit located on the same side as the driving handle is provided with a bayonet pin movably engaged with the driving handle; The guide block is provided with a first anti-rotation hole for cooperating with the anti-rotation pin, and both ends of the slide groove are provided with second anti-rotation holes for cooperating with the anti-rotation pin; The driving handle comprises a rotating shaft rotatably connected to the fan frame and a first handle fixedly connected to one end of the rotating shaft; the rotating shaft is provided with a disc, the disc is provided with a cam groove, and the bayonet pin is movably engaged in the cam groove; The transmission assembly comprises a swing arm axially connected to the fan frame, both ends of the swing arm are hinged with connecting rods, and the connecting rods are hinged to the second sealing unit; The positioning seat is provided with a driving hole, one end of the swing arm is provided with a driving pin, and the driving pin is movably embedded in the driving hole.

2. The flip energy-saving window capable of opening at a large angle according to claim 1, characterized in that: The driving hole includes a first section extending horizontally and a second section extending obliquely upward.

3. The flip energy-saving window capable of opening at a large angle according to claim 1, characterized in that: The second sealing unit is provided with a first accommodating groove, a clamping block is slidably provided in the first accommodating groove, a clamping pin is provided on the clamping block, a first spring is also provided in the first accommodating groove, and two ends of the first spring are in contact with the groove wall and the clamping block of the first accommodating groove.

4. The flip energy-saving window capable of opening at a large angle according to claim 1, characterized in that: Both ends of the second sealing unit are provided with driving pins, and both ends of the first sealing unit are provided with inclined holes, and the driving pins are movably embedded in the corresponding inclined holes.

5. The flip energy-saving window capable of opening at a large angle according to claim 1, characterized in that: The first handle is provided with a second receiving groove, a positioning pin is slidably inserted in the second receiving groove, and a second spring is also provided in the second receiving groove; A plurality of positioning grooves for cooperating with the positioning pins are arranged in the fan frame.

6. The flip energy-saving window capable of opening at a large angle according to claim 1, characterized in that: The driving handle also includes a second handle arranged opposite to the first handle, and the second handle is fixedly connected to the first handle.

7. The flip energy-saving window capable of opening at a large angle according to claim 1, characterized in that: The first sealing unit and the second sealing unit both include a sliding bar that is slidably arranged and a rubber sealing strip that is arranged on the sliding bar.

Images