A detachable sub-frame for sliding window and installation method thereof

Abstract

The present invention belongs to the technical field of energy-saving doors and windows, and specifically relates to a detachable sub-frame for a sliding window and an installation method thereof, wherein the detachable sub-frame for the sliding window comprises a frame body, a glass plate is installed in the frame body, a lap plate is installed on the frame body, a connecting block is fixedly connected to the frame body, a pressure block is installed on the connecting block, a traction steel rope is connected to the pressure block, the traction steel rope runs through the interior of the frame body, the traction steel rope is connected to a pull plate through a guide wheel, the guide wheel and the connecting block are rotatably connected, the pull plate and the frame body are slidably connected, and a pull groove is provided on the pull plate. The present invention can realize the convenient disassembly and assembly of the glass plate, and realizes the functions of automatically releasing the locking state when the sliding window is opened and automatically locking when the sliding window is closed.

Description

Technical Field

[0001] The invention belongs to the technical field of energy-saving doors and windows, and particularly relates to a detachable sub-frame for a sliding window and an installation method thereof. Background Art

[0002] Sliding windows, also known as sliding windows, are characterized by being opened and closed by horizontal sliding, rather than the traditional inward or outward rotation. This design makes space utilization more efficient and improves the utilization rate of indoor space. The structure of a sliding window is usually composed of two to four sliding single windows. Users can easily slide one or more panels to one side or both sides to control the opening or closing of the window according to their needs. Although sliding windows have many advantages, there are also some shortcomings in existing products.

[0003] For example, the left-right sliding window disclosed in publication number CN109415924A includes a window frame formed in a rectangular frame shape assembled from a horizontal frame and a vertical frame; a window door arranged inside the window frame; a movable frame respectively between the upper end and the lower end of the horizontal frame and the window door, and a first cover member for covering the inner side of the horizontal frame and a second cover member for covering the outer side of the horizontal frame are respectively extended on both sides of the movable frame, and a roller is rotatably combined between the first cover member and the second cover member to contact and drive with the horizontal frame. The window door is more firmly and stably combined and maintained without being separated from the window frame, and in the closed state, it has the effect of increasing the indoor temperature and sound insulation function by cutting off the wind, rain, dust and noise introduced into the room.

[0004] Although the above-mentioned sliding window can achieve the functions of sound insulation and increasing indoor temperature, the glass panels in the frame cannot be conveniently installed and removed while ensuring safety during maintenance, and the glass panel support structure in the frame cannot be automatically tilted when pushed out to ensure that the glass panel automatically turns when moving out of and into the frame. Moreover, the existing sliding window frame cannot automatically release the locking state of the two adjacent frames when the frames on either side are pulled. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a detachable sub-frame for a sliding window and an installation method thereof in view of the deficiencies in the prior art. The present invention can realize convenient disassembly and assembly of the glass plate, and realize the functions of automatically releasing the locking state when the sliding window is opened and automatically locking the sliding window when the sliding window is closed.

[0006] The present invention is realized by the following technical measures: a detachable sub-frame for a sliding window, comprising a frame body, a glass plate installed in the frame body, a lap plate installed on the frame body, a connecting block fixedly connected to the frame body, a pressure block installed on the connecting block, a traction steel rope connected to the pressure block, the traction steel rope runs through the interior of the frame body, the traction steel rope is connected to the pull plate through the guide wheel, the guide wheel and the connecting block are rotatably connected, the pull plate and the frame body are slidably connected, and a pulling groove is provided on the pull plate. A first spring is connected between the pressure block and the connecting block, a sliding frame is installed in the frame body, an extension frame is installed on the sliding frame, a rotating assembly is arranged between the extension frame and the sliding frame, through holes are provided on the extension frame and the frame body, a stopper is installed in the through hole, a movable block is slidably installed on the frame body, a guide rod is connected to the movable block, a second spring is sleeved on the outer side of the guide rod, a connecting block is fixedly connected to the guide rod, a second limiting groove for the connecting block to move is provided on the frame body, and the stopper passes through the interior of the lap plate.

[0007] Preferably, a mounting groove for placing a lap plate is provided on the frame body, an outer wall of the lap plate and an inner wall of the mounting groove are fitted together, and a front surface of the frame body is flush with a front surface of the lap plate.

[0008] Preferably, an inner groove for the pressing block to slide is provided in the connecting block, and the pressing block is a spherical structure, and the center of the pressing block is located inside the inner groove.

[0009] Preferably, the pressing block is suitable for shrinking into the inner groove when the pulling plate and the traction steel rope are pulled, and the first spring is sleeved on the outside of the traction steel rope.

[0010] Preferably, the sliding frame and the extension frame are slidably connected to the frame body, the frame body is provided with a sliding groove for the sliding frame and the extension frame to move, the front end of the sliding frame is fixedly connected with a protrusion, and the frame body is provided with a first limiting groove for the protrusion to move.

[0011] Preferably, the length of the first limiting groove is greater than the length of the extension frame, and the sliding frame and the extension frame are symmetrically distributed on the upper and lower sides of the frame body.

[0012] Preferably, the rotating assembly includes a connecting shaft rotatably mounted on the extension frame, the connecting shaft and the sliding frame are fixedly connected, a groove is provided on the extension frame, an elastic rope is connected to the inner wall of the groove, and the right end of the elastic rope is connected to the sliding frame.

[0013] Preferably, a first magnetic block is installed on the extension frame, and a second magnetic block is installed on the sliding frame, and upper surfaces of the sliding frame, the extension frame, the first magnetic block and the second magnetic block are all flush.

[0014] Preferably, a pressure plate is fixedly connected to both the movable block and the frame body, a movable groove is provided on the frame body, a cover plate is installed in the movable groove, and a slot for docking with the pressure plate is provided on the cover plate.

[0015] The present invention also provides a method for installing the above-mentioned detachable sub-frame for a sliding window, comprising the following steps:

[0016] S1: first push the sliding frame and the extension frame out of the frame body, and under the action of the rotating assembly, after the extension frame is moved out of the frame body, the extension frame can be automatically rotated on the sliding frame through the rotating assembly, so that the glass plate is placed in the inclined extension frame;

[0017] S2: Push the sliding frame and the extension frame into the frame body, rotate the extension frame to be flush with the sliding frame, and then push the glass plate into the frame body. Then install a stopper in the through hole, and use the movable block to block the front side of the stopper. Under the action of the second spring, the movable block extends and blocks the front side of the stopper, thereby preventing the glass plate from falling off.

[0018] S3: After the two frame bodies are closed, the pressure block on one of the connecting blocks will block one side of the pressure block on the other connecting block, thereby realizing the clamping function. When the frame body needs to be opened, pull the pull plate, and the pull plate will pull the pressure block through the traction steel rope, so that the pressure block retracts into the interior of the connecting block, so that the frame body can slide on the other frame body, and the locking state is automatically released when the frame body is opened.

[0019] Beneficial effects of the present invention:

[0020] 1. The present invention provides the overlapping plate, the baffle plate and the through hole, so that the glass plate can be removed by sliding the movable block, then removing the baffle plate from the through hole, and then removing the overlapping plate in the installation groove. The glass plate can also be installed according to the reverse steps. The present invention is more convenient when installing and removing the glass plate inside the frame. After the glass plate is installed, under the pressing action of the second spring, the baffle plate can keep the position of the overlapping plate unchanged, thereby blocking the side of the glass plate and ensuring the overall stability.

[0021] 2. The present invention uses a sliding frame, an extension frame and a rotating assembly. The rotating assembly can automatically rotate counterclockwise when the extension frame on the left side of the sliding frame is not blocked, so that the angle can be automatically changed when moving in and out of the frame, so that the sliding frame automatically turns, thereby reducing the horizontal space occupied by the glass plate. After the processing of the sliding frame and the extension frame is installed inside the frame body, the sliding frame and the extension frame can be automatically aligned, thereby enhancing the overall stability of the frame and enhancing the safety during use;

[0022] 3. The present invention provides a pressing block, a traction steel rope and a first spring, so that when opening or closing the sliding window on either side, the traction steel rope is pulled by the pull plate, and the traction steel rope pulls the pressing block, so that the two adjacent pressing blocks no longer block each other, and the function of automatically releasing the locking state when opening the sliding window and automatically locking the sliding window when closing the sliding window is realized. It can be operated once when in use, which enhances the convenience of use;

[0023] 4. The present invention provides a cover plate, a pressure plate and a slot. After all installations are completed, the pressure plate is bent and the cover plate is installed in the movable slot on the frame body, so that the outer surface of the sliding window is smooth and the movable block can no longer move after the glass plate is installed, thereby ensuring safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a detachable sub-frame for a sliding window in the present invention;

[0025] Figure 2 It is a schematic diagram of the connection structure between the frame body and the lap plate;

[0026] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0027] Figure 4 yes Figure 2 The enlarged view of point B in the middle;

[0028] Figure 5 It is a schematic diagram of the connection structure of the connecting block and the pressing block;

[0029] Figure 6 yes Figure 5 Enlarged view of point C in the middle;

[0030] Figure 7 It is a schematic diagram of the connection structure between the frame body and the glass plate;

[0031] Figure 8 It is a structural schematic diagram of the extension frame of the present invention in an extended state;

[0032] Fig. 9 It is a schematic diagram of the connection structure between the sliding frame and the extension frame of the present invention;

[0033] Fig.10 yes Fig. 9 The enlarged view of point D in the middle;

[0034] Fig.11 yes Fig. 9 Enlarged view of point E in the middle;

[0035] Fig.12 It is a schematic diagram of the split structure of the frame body and the lap plate;

[0036] Fig.13 yes Fig.12 Enlarged view of point F in the middle.

[0037] 1. Frame body; 2. Glass plate; 3. Overlap plate; 4. Connecting block; 5. Pressing block; 6. Traction steel rope; 7. Pulling plate; 8. Lifting groove; 9. First spring; 10. Guide wheel; 11. Inner groove; 12. Mounting groove; 13. Slide groove; 14. Slide frame; 15. Protrusion; 16. First limiting groove; 17. Extension frame; 18. Rotating assembly; 1801. Connecting shaft; 1802. Groove; 1803. Elastic rope; 1804. First magnetic block; 1805. Second magnetic block; 19. Moving groove; 20. Cover plate; 21. Pressing plate; 22. Slot; 23. Movable block; 24. Guide rod; 25. Second spring; 26. Connecting block; 27. Second limiting groove; 28. Stopper; 29. ​​Through hole. DETAILED DESCRIPTION

[0038] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods and in conjunction with the accompanying drawings.

[0039] like Figure 1-Figure 13 As shown, a detachable sub-frame for a sliding window comprises a frame body 1, a glass plate 2 is installed in the frame body 1, a lap plate 3 is installed on the frame body 1, the lap plate 3 can prevent the glass plate 2 from detaching from the frame body 1 when installed, and the lap plate 3 is convenient for removing or replacing the glass plate 2 when removed, a connecting block 4 is fixedly connected to the frame body 1, a pressure block 5 is installed on the connecting block 4, a traction steel rope 6 is connected to the pressure block 5, the traction steel rope 6 runs through the interior of the frame body 1, the traction steel rope 6 is connected to the pull plate 7 through the guide wheel 10, the guide wheel 10 and the connecting block 4 are rotatably connected, the pull plate 7 and the frame body 1 are slidably connected, and a pulling groove 8 is provided on the pull plate 7.

[0040] When opening or closing the frame body 1, the pull plate 7 can be directly pulled, and the traction steel rope 6 can be pulled by the pull plate 7, and the pressure block 5 can be pulled by the traction steel rope 6, so that the pressure block 5 is retracted into the interior of the connecting block 4. At this time, the two adjacent frame bodies 1 are no longer clamped to each other, thereby realizing the function of automatically releasing the locking state when opening the frame body 1. A first spring 9 is connected between the pressure block 5 and the connecting block 4, and the first spring 9 can tighten the pressure block 5, thereby ensuring that the two adjacent frame bodies 1 are in accordance with Figure 1 When the two frame bodies 1 are closed in the manner described above, both frame bodies 1 are in a locked state.

[0041] A sliding frame 14 is installed in the frame body 1, and an extension frame 17 is installed on the sliding frame 14. A rotating assembly 18 is arranged between the extension frame 17 and the sliding frame 14. The rotating assembly 18 can make the extension frame 17 automatically rotate counterclockwise when the sliding frame 14 is moved out, so that the replaced glass plate 2 can be conveniently installed inside the frame body 1 later. A through hole 29 is opened on the extension frame 17 and the frame body 1, and a stopper 28 is installed in the through hole 29. A movable block 23 is slidably installed on the frame body 1, and a guide rod 24 is connected to the movable block 23. A second spring 25 is sleeved on the outer side of the guide rod 24, a connecting block 26 is fixedly connected to the guide rod 24, a second limiting groove 27 for the connecting block 26 to move is opened on the frame body 1, and the stopper 28 runs through the inside of the lap plate 3. After the glass plate 2 is installed, the stopper 28 can be installed into the through hole 29 and the inside of the lap plate 3, so that the lap plate 3 and the extension frame 17 remain in a clamped state, thereby ensuring that the glass plate 2 can remain firm after installation, and the function of convenient installation and removal of the glass plate 2 is achieved on the basis of ensuring safety.

[0042] The frame body 1 is provided with a mounting groove 12 for placing the lap plate 3. The outer wall of the lap plate 3 fits with the inner wall of the mounting groove 12. The front surface of the frame body 1 is flush with the front surface of the lap plate 3, ensuring that the lap plate 3 remains stable after being installed in the mounting groove 12 and keeps the surface of the frame body 1 smooth.

[0043] An inner groove 11 for the pressing block 5 to slide is provided in the connecting block 4. The locking state of the two adjacent windows can be changed by changing the front and rear positions of the pressing block 5. The pressing block 5 is a spherical structure, and the center of the sphere of the pressing block 5 is located inside the inner groove 11, ensuring that the pressing block 5 will not fall off from the inner groove 11. The pressing block 5 with a spherical structure can press against the other window when one of the windows of the sliding window is closed, thereby realizing the locking function. Of course, in order to achieve a better locking function, a limiting groove that cooperates with the pressing block 5 can be provided on the window. The limiting groove not only limits the pressing block 5, but also ensures that the pressing block 5 can be smoothly separated from the limiting groove when the frame body 1 is opened.

[0044] The pressing block 5 is suitable for shrinking into the inner groove 11 when the pull plate 7 and the traction steel rope 6 are pulled, and the first spring 9 is sleeved on the outside of the traction steel rope 6. The traction steel rope 6 can pull the pressing block 5 when being pulled, so that the pressing block 5 retracts, so as to release the locking state of the sliding window, and the pulling plate 7 and the traction steel rope 6 are connected, so that when the pulling plate 7 is pulled, the pressing block 5 is pulled first, and then the window opening function is realized. The two steps of unlocking and opening the window are realized through one action, which enhances the convenience during use.

[0045] The sliding frame 14 and the extension frame 17 are both slidably connected to the frame body 1. A sliding groove 13 is provided on the frame body 1 for the sliding frame 14 and the extension frame 17 to move. A protrusion 15 is fixedly connected to the front end of the sliding frame 14. The frame body 1 is provided with a first limiting groove 16 for the protrusion 15 to move. After the sliding frame 14 and the extension frame 17 are moved out, the extension frame 17 can adjust its own angle, and the extension frame 17 can remain tilted to facilitate the installation of glass and reduce the horizontal space occupied when installing glass.

[0046] The length of the first limiting groove 16 is greater than the length of the extension frame 17. The sliding frame 14 and the extension frame 17 are symmetrically distributed on the upper and lower sides of the frame body 1. The symmetrically distributed sliding frame 14 and the extension frame 17 can ensure that when the glass is installed inside the frame body 1, the upper and lower sides of the glass can be stably supported.

[0047] The rotating assembly 18 includes a connecting shaft 1801 rotatably mounted on the extension frame 17. The connecting shaft 1801 and the sliding frame 14 are fixedly connected. A groove 1802 is provided on the extension frame 17. An elastic rope 1803 is connected to the inner wall of the groove 1802. The right end of the elastic rope 1803 is connected to the sliding frame 14. The elastic rope 1803 can pull the extension frame 17 to drive the extension frame 17 to rotate, thereby realizing the function of automatic rotation of the extension frame 17 after being removed, which is convenient for the subsequent installation of the glass into the window at different angles.

[0048] The first magnetic block 1804 is installed on the extension frame 17, and the second magnetic block 1805 is installed on the slide frame 14. The upper surfaces of the slide frame 14, the extension frame 17, the first magnetic block 1804 and the second magnetic block 1805 are all flush, ensuring that the upper surfaces of the slide frame 14 and the extension frame 17 are flat, and the extension frame 17 is reset to Fig. 9 When in the state of being in the middle, the first magnetic block 1804 and the second magnetic block 1805 can be attracted to each other to ensure the overall stability of the frame.

[0049] The movable block 23 and the frame body 1 are both fixedly connected with a pressing plate 21. The frame body 1 is provided with a moving groove 19. A cover plate 20 is installed in the moving groove 19. The cover plate 20 is provided with a slot 22 for docking with the pressing plate 21. The cover plate 20 can block the moving groove 19, so that the window remains locked after installation. Fig.11 In the embodiment, the pressing plate 21 is in a bent state, and after the cover plate 20 is installed, the cover plate 20 can be pressed tightly.

[0050] The present invention also provides a method for installing the above-mentioned detachable sub-frame for a sliding window, comprising the following steps:

[0051] S1: First, push the slide frame 14 and the extension frame 17 out of the frame body 1. Under the action of the rotating assembly 18, after the extension frame 17 is moved out of the frame body 1, the extension frame 17 can be automatically rotated on the slide frame 14 through the rotating assembly 18. Under the action of the elastic rope 1803 in the groove 1802, the extension frame 17 can be rotated on the slide frame 14 through the connecting shaft 1801. At this time, the extension frame 17 is in an inclined state, so that the glass plate 2 is placed in the inclined extension frame 17, thereby reducing the horizontal space occupied when installing the glass plate 2. When the extension frame 17 is rotated to Fig.10 After the state is reached, the first magnetic block 1804 and the second magnetic block 1805 are attracted to each other, so that the extension frame 17 remains stable on the slide frame 14;

[0052] S2: Push the slide frame 14 and the extension frame 17 into the frame body 1, rotate the extension frame 17 to be flush with the slide frame 14, and then push the glass plate 2 into the frame body 1, and install the lap plate 3 into the installation groove 12 (such as Figure 2 and Fig.12 As shown), at this time, the stopper 28 can be installed in the through hole 29, and the front side of the stopper 28 is blocked by the movable block 23. Under the action of the second spring 25, the movable block 23 extends and blocks the front side of the stopper 28, so that the stopper 28 will not fall off. At this time, the lap plate 3 can be stably installed on the frame body 1, thereby preventing the glass plate 2 from falling off;

[0053] S3: After the two frame bodies 1 are closed (such as Figure 1 As shown in FIG. 1 ), a pressing block 5 on one connecting block 4 blocks one side of a pressing block 5 on another connecting block 4 (combined with Figure 5As can be seen), the clamping function is realized. When the frame body 1 needs to be opened, the lifting groove 8 on the pull plate 7 is pulled, and the pull plate 7 will pull the traction steel rope 6 running through the inside of the frame body 1. The traction steel rope 6 changes the direction of the pulling force transmission under the guidance of the guide wheel 10, thereby pulling the pressure block 5, so that the pressure block 5 is retracted into the inside of the connecting block 4. At this time, the first spring 9 is compressed, and the locking state of the two frame bodies 1 is automatically released by the pulling action. After the lock is released, the frame body 1 can slide on the other frame body 1, and the locking state is automatically released when the frame body 1 is opened. The protrusion 15 and the first limiting groove 16 can limit the movement range of the slide frame 14 in the slide groove 13, and the connecting block 26 and the second limiting groove 27 can limit the movement range of the guide rod 24 on the frame body 1 to prevent the guide rod 24 and the slide frame 14 from detaching from the frame body 1. After the glass plate 2 is installed, slide the movable block 23 to the right, install the lap plate 3 into the installation groove 12, and then install the stopper 28 into the through hole 29 and the lap plate 3, and then reset the movable block 23, and block the front side of the stopper 28 by the movable block 23 to complete the locking function of the lap plate 3. Finally, bend the pressing plate 21, install the cover plate 20 into the movable groove 19, and then snap the pressing plate 21 into the snapping groove 22 to complete the fixing of the cover plate 20.

[0054] Technical features not described in the present invention can be implemented by existing technologies and will not be described in detail here. The present invention is not limited to the above specific embodiments, and changes, modifications, additions or substitutions made by ordinary technicians in the field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A detachable sub-frame for a sliding window, comprising a frame body (1), characterized in that: A glass plate (2) is installed in the frame body (1), a lap plate (3) is installed on the frame body (1), a connecting block (4) is fixedly connected to the frame body (1), a pressure block (5) is installed on the connecting block (4), a traction steel rope (6) is connected to the pressure block (5), the traction steel rope (6) runs through the interior of the frame body (1), the traction steel rope (6) is connected to the pull plate (7) through the guide wheel (10), the guide wheel (10) and the connecting block (4) are rotatably connected, the pull plate (7) and the frame body (1) are slidably connected, a pulling groove (8) is provided on the pull plate (7), a first spring (9) is connected between the pressure block (5) and the connecting block (4), and a pressure block (5) is installed in the frame body (1). A sliding frame (14) is provided, an extension frame (17) is installed on the sliding frame (14), a rotating assembly (18) is arranged between the extension frame (17) and the sliding frame (14), a through hole (29) is provided on the extension frame (17) and the frame body (1), a stopper (28) is installed in the through hole (29), a movable block (23) is slidably installed on the frame body (1), a guide rod (24) is connected to the movable block (23), a second spring (25) is sleeved on the outer side of the guide rod (24), a connecting block (26) is fixedly connected to the guide rod (24), a second limiting groove (27) for the connecting block (26) to move is provided on the frame body (1), and the stopper (28) passes through the interior of the lap plate (3).

2. A detachable sub-frame for a sliding window according to claim 1, characterized in that: The frame body (1) is provided with a mounting groove (12) for accommodating the lap plate (3); the outer wall of the lap plate (3) and the inner wall of the mounting groove (12) fit each other; and the front surface of the frame body (1) is flush with the front surface of the lap plate (3).

3. A detachable sub-frame for a sliding window according to claim 2, characterized in that: An inner groove (11) for the pressing block (5) to slide is provided in the connection block (4); the pressing block (5) is a spherical structure, and the center of the pressing block (5) is located inside the inner groove (11).

4. A detachable sub-frame for a sliding window according to claim 3, characterized in that: The pressing block (5) is suitable for shrinking into the inner groove (11) when the pulling plate (7) and the pulling steel rope (6) are pulled, and the first spring (9) is sleeved on the outside of the pulling steel rope (6).

5. The detachable sub-frame for a sliding window according to claim 4, characterized in that: The sliding frame (14) and the extension frame (17) are both slidably connected to the frame body (1); a sliding groove (13) for the sliding frame (14) and the extension frame (17) to move is provided on the frame body (1); a protrusion (15) is fixedly connected to the front end of the sliding frame (14); and a first limiting groove (16) for the protrusion (15) to move is provided on the frame body (1).

6. A detachable sub-frame for a sliding window according to claim 5, characterized in that: The length of the first limiting groove (16) is greater than the length of the extension frame (17), and the sliding frame (14) and the extension frame (17) are symmetrically distributed on the upper and lower sides of the frame body (1).

7. A detachable sub-frame for a sliding window according to claim 6, characterized in that: The rotating assembly (18) comprises a connecting shaft (1801) rotatably mounted on the extension frame (17); the connecting shaft (1801) and the sliding frame (14) are fixedly connected; a groove (1802) is provided on the extension frame (17); an elastic rope (1803) is connected to the inner wall of the groove (1802); and the right end of the elastic rope (1803) is connected to the sliding frame (14).

8. The detachable sub-frame for a sliding window according to claim 7, characterized in that: A first magnetic block (1804) is mounted on the extension frame (17), and a second magnetic block (1805) is mounted on the slide frame (14); upper surfaces of the slide frame (14), the extension frame (17), the first magnetic block (1804) and the second magnetic block (1805) are all flush.

9. The detachable sub-frame for a sliding window according to claim 8, characterized in that: A pressing plate (21) is fixedly connected to the movable block (23) and the frame body (1); a movable groove (19) is provided on the frame body (1); a cover plate (20) is installed in the movable groove (19); and a slot (22) for docking with the pressing plate (21) is provided on the cover plate (20).

10. A method for installing a detachable sub-frame for a sliding window according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: first, the sliding frame (14) and the extension frame (17) are pushed out from the inside of the frame body (1). Under the action of the rotating assembly (18), after the extension frame (17) is moved out of the frame body (1), the rotating assembly (18) can be used to automatically rotate the extension frame (17) on the sliding frame (14), thereby placing the glass plate (2) into the inclined extension frame (17); S2: Pushing the sliding frame (14) and the extension frame (17) into the interior of the frame body (1), rotating the extension frame (17) until it is flush with the sliding frame (14), and then pushing the glass plate (2) into the interior of the frame body (1), and then installing a stopper (28) in the through hole (29), and blocking the front side of the stopper (28) by the movable block (23), and under the action of the second spring (25), the movable block (23) extends and blocks the front side of the stopper (28), thereby preventing the glass plate (2) from falling off; S3: After the two frame bodies (1) are closed, the pressure block (5) on one of the connection blocks (4) will block one side of the pressure block (5) on the other connection block (4), thereby realizing a clamping function. When the frame body (1) needs to be opened, the pull plate (7) is pulled, and the pull plate (7) pulls the pressure block (5) through the traction steel rope (6), so that the pressure block (5) is retracted into the interior of the connection block (4), so that the frame body (1) can slide on the other frame body (1), and the locking state is automatically released when the frame body (1) is opened.

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