A multi-stage adjustable window limiter

Abstract

This invention relates to the field of limiters, specifically a multi-segment adjustable window limiter, comprising a window frame, an inner wall of which has a frame edge, and two windows, namely Window Door 1 and Window Door 2, which slide on the inner wall of the window frame respectively; a limit latching mechanism that provides anti-theft closure while maintaining the limiting stability of Window Door 1 and Window Door 2, facilitating timely limitation of the specific positions of Window Door 1 and Window Door 2 within the window frame; a retaining mechanism that allows Window Door 1 to move freely within the inner wall of the frame edge when open, and to fix Window Door 1 within the inner wall of the frame edge when closed, limiting the opening distance between Window Door 1 and the window frame; and a linkage adjustment mechanism that limits the movement of Window Door 2 while Window Door 1 remains fixed. This mechanism is convenient to use; the user only needs to rotate the adjustment handle to achieve arbitrary width limit adjustment of Window Door 1.

Description

Technical Field

[0001] This invention relates to the field of limiters, specifically a window limiter that is adjustable in multiple segments. Background Technology

[0002] Door and window limiters are mechanisms that restrict the opening of doors and windows. In some situations, doors and windows do not need to be fully opened, only partially. These are used in places like hospitals, hotels, and inns to ensure safety in public areas. Additionally, limiters are often installed in homes with children to restrict the opening size of doors and windows. Without affecting normal indoor ventilation, the limiter artificially limits the window opening distance, preventing the risk of children climbing and falling.

[0003] However, traditional institutions still face the following problems when using it:

[0004] Traditional window limiters can only be pre-mounted on the outside of the window sill to block the window's movement, limiting its movement to a specific range. This type of window limiter requires separate installation, which is inconvenient and makes installation and removal difficult. Consequently, the window opening range cannot be adjusted. In different situations, users may need to adjust the window opening range to ensure ventilation. Existing limiters cannot effectively adjust and limit the window opening width and need improvement. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-segment adjustable window limiter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-segment adjustable window limiter, comprising a window frame, an inner wall of which is provided with a frame edge, and two windows, namely Window Door 1 and Window Door 2, slidingly mounted on the inner wall of the window frame; a limiting latch mechanism, which provides anti-theft closure while maintaining the limiting stability of Window Door 1 and Window Door 2, facilitating timely limitation of the specific positions of Window Door 1 and Window Door 2 within the window frame; a holding mechanism, which allows Window Door 1 to move freely within the inner wall of the frame edge when open, and fixes Window Door 1 to the inner wall of the frame edge when closed, limiting the opening distance between Window Door 1 and the window frame; a linkage adjustment mechanism, which limits the movement of Window Door 2 while Window Door 1 is fixed; and a dustproof mechanism, which provides a certain degree of wind and dust protection to the interior of Window Door 2 while operating in conjunction with the adjustment mechanism.

[0007] A further improvement of the technical solution of the present invention is that: the limiting buckle structure includes an adjusting handle and a retaining ring, one end of the outer wall of the retaining ring is fixedly connected to one end of the outer wall of the second window, one end of the adjusting handle is fixedly connected to a connecting rod, the outer wall of the connecting rod is rotatably connected to the inner wall of the first window, one side of the outer wall of the adjusting handle is fixedly connected to a buckle, and one side of the outer wall of the buckle is movably connected to one side of the outer wall of the retaining ring.

[0008] A further improvement of the technical solution of the present invention is that: the retaining mechanism includes a gear, the inner wall of the gear and the inner wall of the connecting rod are fixedly connected, a movable groove is opened inside the window door, a retaining plate is movably connected to one side of the inner wall of the movable groove, a toothed block is fixedly connected to one side of the outer wall of the retaining plate, the outer wall of the toothed block and the outer wall of the gear are meshed, a lifting rod is fixedly connected to the bottom outer wall of the retaining plate, a movable plate is fixedly connected to the bottom outer wall of the lifting rod, a hinge is fixedly connected to the bottom outer wall of the movable plate, a push rod is hinged to the movable plate through hinge one, a hinge two is fixedly connected to the outer wall of the end of the push rod away from hinge one, a connecting plate is hinged to the push rod through hinge two, a slot is opened on the bottom outer wall of the window door, and the connecting plate... The outer wall and the inner wall of the slot are movably connected. A mounting bracket is fixedly connected to the inner wall of the slot. The bottom outer wall of the connecting plate is fixedly connected to the top outer wall of the mounting bracket. A sliding groove communicating with the inner wall is opened on the top outer wall of the mounting bracket. A sliding rod is fixedly connected to the bottom outer wall of the connecting plate. The outer wall of the sliding rod is movably connected to the inner wall of the sliding groove. A hinge three is fixedly connected to the inner wall of the mounting bracket. An opening and closing plate one is hinged to the mounting bracket through the hinge three. The outer wall of the opening and closing plate one is movably connected to the outer wall of the sliding rod. A spring is fixedly connected to the inner wall of the mounting bracket. The outer wall of the spring away from the mounting bracket is fixedly connected to the outer wall of one side of the opening and closing plate one. A limit caliper one is fixedly connected to the inner wall of the frame edge. The outer wall of the opening and closing plate one is movably connected to the outer wall of the limit caliper one.

[0009] A further improvement of the technical solution of the present invention is that: a limiting block is fixedly connected to the inner wall of the movable groove, and the inner wall of the limiting block is movably connected to the outer wall of the lifting rod.

[0010] A further improvement of the technical solution of the present invention is that: the linkage adjustment mechanism includes a insert, a communication port connected to the movable groove is opened at the bottom of one side outer wall of the first window, the two sides outer walls of the movable plate are movably connected to the inner wall of the communication port, the top outer wall of the insert is fixedly connected to the bottom outer wall of the movable plate, a stop block is fixedly connected to one side outer wall of the insert, a movable cavity is opened at the bottom outer wall of the second window, a protrusion is fixedly connected to one side inner wall of the movable cavity, and the outer wall of the protrusion is movably connected to the outer wall of the stop block.

[0011] A further improvement of the technical solution of the present invention is that: a second opening and closing plate is fixedly connected to one side of the outer wall of the insert, a second limiting caliper is fixedly connected to one side of the inner wall of the frame edge, and the outer wall of the second limiting caliper and the outer wall of the second opening and closing plate are movably connected.

[0012] A further improvement of the technical solution of the present invention is that: the dustproof mechanism includes two clamping magnetic plates, the two clamping magnetic plates are magnetically connected to the outer walls of both sides of the movable plate, a sliding cavity communicating with the movable cavity is opened on one side of the outer wall of the second window, the outer walls of both ends of the clamping magnetic plates are slidably connected to the inner wall of the sliding cavity, a rotating rod is rotatably connected to both ends of the inner wall of the sliding cavity, the outer walls of the two rotating rods are movably connected to the same protective belt, and the outer walls of both ends of the protective belt are movably connected to the outer walls of the two clamping magnetic plates respectively.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. When window door one and window door two are closed, the user rotates the adjusting handle to engage the latch in the retaining ring. While the adjusting handle is rotated upwards to maintain the closed position, the connecting rod linked to the adjusting handle drives the gear to rotate. The gear's rotation meshes, causing the gear block to move downwards. Simultaneously, the lower lifting rod presses the movable plate and hinge one downwards. The push rod converts the downward force on hinge one into a force that pushes the connecting plate to move laterally to the left. This movement of the connecting plate causes the sliding rod to slide to the left within the sliding groove. Thus, the opening and closing plate one unfolds under the tension of the spring. At this time, one outer wall of the opening and closing plate one inside window door one will abut against the outer wall of the limit caliper one inside the window frame. Through three... The corner limiter engages the window frame and the window door, preventing the window door from moving to the right and thus limiting the opening distance. This is a one-way limit; because the opening plate is triangular, under the elastic tension of the spring, when the window door moves to the left, the outer wall of the limit caliper abuts against the inclined outer wall of the opening plate, causing the opening plate to retract and completing the one-way movement of the window door. This mechanism is convenient to use; users only need to rotate the adjustment handle to adjust the window door to any width. Once the width is limited, the window can only be closed, not opened. This mechanism effectively protects children's safety and prevents them from falling when they try to open the window.

[0015] 2. Window door one is connected to window door two through a movable plate. When the movable plate moves downward, the stop block will abut against the protrusion on the inner wall of window door two, so that window door one is limited to the window frame while restricting window door two, thus preventing window door two from moving.

[0016] 3. When window door one and window door two are in any moving state, the movable plate set inside window door two will change with the moving state of window door one and window door two. Therefore, the width of the sliding cavity in this invention will be relatively large. In windy weather, some dust or impurities may be drawn into the sliding cavity, affecting the movement of window door two. In this invention, a protective belt is set to block dust and impurities. In this invention, the movable plate and the clamping magnetic plate are both made of magnets. When the movable plate moves, it pushes the clamping magnetic plate on one side to move, and at the same time attracts the clamping magnetic plate on the other side to move, thereby driving the protective belt to rotate on the outer wall of the two rotating rods to block dust and impurities. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front-side structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the rear-side structure of the present invention;

[0019] Figure 3 This is a cross-sectional structural diagram of window / door 1;

[0020] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0021] Figure 5 for Figure 3 Enlarged structural diagram at point B;

[0022] Figure 6 This is a schematic diagram of the structure of the present invention after removing the window and door;

[0023] Figure 7 for Figure 6 Enlarged structural diagram at point C;

[0024] Figure 8 This is a schematic diagram of the front side of the mounting bracket structure in this invention;

[0025] Figure 9 This is a top view of the internal structure of the mounting bracket in this invention;

[0026] Figure 10 This is a schematic diagram of the structure at the connection between window door one and window door two of the present invention;

[0027] Figure 11 This is a schematic diagram of the structure of the inner protrusion of the window door in this invention;

[0028] Figure 12 This is a top view of the movable plate structure of the present invention;

[0029] Figure 13 This is a schematic diagram of the structure of the movable cavity inside the window / door of the present invention.

[0030] In the diagram: 1. Window frame; 2. Window door one; 3. Window door two; 4. Frame edge; 5. Limiting caliper one; 6. Limiting caliper two; 7. Adjusting handle; 8. Buckle; 9. Snap ring; 10. Movable groove; 11. Connecting rod; 12. Gear; 13. Holding plate; 14. Gear block; 15. Lifting rod; 16. Limiting block; 17. Movable plate; 18. Hinge one; 19. Push rod; 20. Hinge two; 21. Linking plate; 22. Slot; 23. Mounting bracket; 24. Slide groove; 25. Slide rod; 26. Hinge three; 27. Opening and closing plate one; 28. Spring; 29. ​​Connecting port; 30. Movable cavity; 31. Clamping magnetic plate; 32. Protective belt; 33. Rotating rod; 34. Insert strip; 35. Stop block; 36. Sliding cavity; 37. Protrusion; 38. Opening and closing plate two. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1

[0033] Please see Figures 1 to 13This invention provides a technical solution: a multi-segment adjustable window limiter, including a window frame 1, an inner wall of which is provided with a frame edge 4, and two sliding door doors 2 and 3 respectively on the inner wall of the window frame 1. A limiting latch mechanism, while providing anti-theft closure, can maintain the limiting stability of door doors 2 and 3, facilitating timely limitation of their specific positions within the window frame 1. The limiting latch mechanism is located on one outer wall of door doors 2 and 3 respectively. A retaining mechanism, when open, allows door door 2 to move freely within the inner wall of the frame edge 4; when closed, it fixes door door 2 within the inner wall of the frame edge 4, limiting the opening distance between door door 2 and the window frame 1. The retaining mechanism is located inside door door 2 and is linked to an adjustment mechanism. While window 2 remains fixed, window 3 is limited in position. The linkage adjustment mechanism is located inside window 3. The dustproof mechanism, while operating in conjunction with the adjustment mechanism, provides a certain degree of wind and dust protection to the interior of window 3. The limiting buckle structure includes an adjustment handle 7 and a retaining ring 9. One end of the retaining ring 9 is fixedly connected to one end of the outer wall of window 3. One end of the adjustment handle 7 is fixedly connected to a connecting rod 11, whose outer wall is rotatably connected to the inner wall of window 2. One side of the adjustment handle 7 is fixedly connected to a buckle 8, whose outer wall is movably connected to one side of the retaining ring 9. The holding mechanism includes a gear 12, whose inner wall is fixedly connected to the inner wall of the connecting rod 11. A movable groove 10 is provided inside window 2. A retaining plate 13 is movably connected to one inner wall of the movable groove 10. A toothed block 14 is fixedly connected to one outer wall of the retaining plate 13. The outer wall of the toothed block 14 meshes with the outer wall of the gear 12. A lifting rod 15 is fixedly connected to the bottom outer wall of the retaining plate 13. A movable plate 17 is fixedly connected to the bottom outer wall of the lifting rod 15. A hinge 18 is fixedly connected to the bottom outer wall of the movable plate 17. A push rod 19 is hinged to the movable plate 17 via hinge 18. A hinge 20 is fixedly connected to the outer wall of the end of the push rod 19 away from hinge 18. A connecting plate 21 is hinged to the push rod 19 via hinge 20. A slot 22 is provided on the bottom outer wall of the window door 2. The outer wall of the connecting plate 21 and the inner wall of the slot 22 are movably connected. A mounting bracket 2 is fixedly connected to the inner wall of the slot 22. 3. The bottom outer wall of the connecting plate 21 is fixedly connected to the top outer wall of the mounting frame 23. The top outer wall of the mounting frame 23 has a sliding groove 24 that communicates with the inner wall. The bottom outer wall of the connecting plate 21 is fixedly connected to a sliding rod 25. The outer wall of the sliding rod 25 is movably connected to the inner wall of the sliding groove 24. The inner wall of the mounting frame 23 is fixedly connected to a hinge 3 26. The mounting frame 23 is hinged to an opening and closing plate 27 via the hinge 3 26. The outer wall of the opening and closing plate 27 is movably connected to the outer wall of the sliding rod 25. The inner wall of the mounting frame 23 is fixedly connected to a spring 28. The outer wall of the spring 28 away from the mounting frame 23 is fixedly connected to the outer wall of one side of the opening and closing plate 27. The inner wall of the frame edge 4 is fixedly connected to a limit caliper 5. The outer wall of the opening and closing plate 27 is movably connected to the outer wall of the limit caliper 5.A limiting block 16 is fixedly connected to the inner wall of the movable groove 10, and the inner wall of the limiting block 16 is movably connected to the outer wall of the lifting rod 15.

[0034] When window 1 (2) and window 2 (3) are closed, the user rotates the adjusting handle 7 to engage the latch 8 in the retaining ring 9. While the adjusting handle 7 is rotated upwards to maintain the closed position, the connecting rod 11, linked to the adjusting handle 7, drives the gear 12 to rotate. The gear 12's rotation engages the gear block 14, causing it to move downwards. The lower lifting rod 15 presses the movable plate 17 and hinge 18 downwards. The push rod 19 converts the downward force on hinge 18 into a force that pushes the connecting plate 21 to move laterally to the left. The movement of the connecting plate 21 causes the sliding rod 25 to slide to the left within the sliding groove 24. Thus, the opening and closing plate 27 unfolds under the tension of the spring 28. At this time, one outer wall of the opening and closing plate 27 inside window 1 (2) will abut against the inner limit of the window frame 1. The outer wall of the caliper 5 engages the window frame 1 and window door 2 via a triangular limiter. In this state, window door 2 cannot move to the right, thus limiting the opening distance. Furthermore, this state is a one-way limiter. Since the opening and closing plate 27 is triangular in shape, under the elastic tension of the spring 28, when window door 2 moves to the left, the outer wall of the caliper 5 will abut against the inclined outer wall of the opening and closing plate 27, causing the opening and closing plate 27 to retract, completing the one-way movement of window door 2. This mechanism is convenient to use. Users only need to rotate the adjustment handle 7 to achieve arbitrary width limit adjustment of window door 2. After the width is limited, the window can only be closed and cannot be opened. When a child moves the window, this mechanism can better protect the child's personal safety and prevent falls.

[0035] Example 2

[0036] Based on Embodiment 1, the linkage adjustment mechanism includes a strip 34, a communication port 29 connected to the movable groove 10 is provided at the bottom of one side outer wall of window door 2, the two sides outer walls of movable plate 17 are movably connected to the inner wall of communication port 29, the top outer wall of strip 34 is fixedly connected to the bottom outer wall of movable plate 17, a stop block 35 is fixedly connected to one side outer wall of strip 34, a movable cavity 30 is provided at the bottom outer wall of window door 2, a protrusion 37 is fixedly connected to one side inner wall of movable cavity 30, the outer wall of protrusion 37 is movably connected to the outer wall of stop block 35, an opening and closing plate 2 38 is fixedly connected to one side outer wall of strip 34, a limit caliper 2 6 is fixedly connected to one side inner wall of frame edge 4, and the outer wall of limit caliper 2 6 is movably connected to the outer wall of opening and closing plate 2 38.

[0037] Window 1 2 is linked to window 2 3 via movable plate 17. When movable plate 17 moves downward, stop 35 will abut against protrusion 37 on inner wall of window 2 3, causing window 1 2 to be limited on window frame 1 while restricting window 2 3 to prevent window 2 3 from moving.

[0038] Example 3

[0039] Based on Embodiment 2, the dustproof mechanism includes two clamping magnetic plates 31, which are magnetically connected to the outer walls of both sides of the movable plate 17. A sliding cavity 36 communicating with the movable cavity 30 is opened on one side of the outer wall of the window 3. The outer walls of both ends of the clamping magnetic plates 31 are slidably connected to the inner wall of the sliding cavity 36. Rotating rods 33 are rotatably connected to both ends of the inner wall of the sliding cavity 36. The outer walls of the two rotating rods 33 are movably connected to the same protective belt 32. The outer walls of both ends of the protective belt 32 are movably connected to the outer walls of the two clamping magnetic plates 31, respectively.

[0040] When window 1 2 and window 2 3 are in any moving state, the movable plate 17 set inside window 2 3 will change with the moving state of window 1 2 and window 2 3. Therefore, the width of the sliding cavity 36 in this invention will be relatively large. In windy weather, some dust or impurities may be drawn into the sliding cavity 36, affecting the movement of window 2 3. In this invention, a protective belt 32 is set to block dust and impurities. In this invention, the movable plate 17 and the clamping magnetic plate 31 are both made of magnets. When the movable plate 17 moves, it pushes the clamping magnetic plate 31 on one side to move, and at the same time attracts the clamping magnetic plate 31 on the other side to move, thereby driving the protective belt 32 to rotate on the outer wall of the two rotating rods 33 to block dust and impurities.

[0041] The working principle and usage procedure of the multi-segment adjustable window limiter are explained in detail below:

[0042] When window 1 (2) and window 2 (3) are closed, the user rotates the adjusting handle 7 to engage the latch 8 in the retaining ring 9. While the adjusting handle 7 is rotated upwards to maintain the closed position, the connecting rod 11, linked to the adjusting handle 7, drives the gear 12 to rotate. The rotation of the gear 12 meshes with the gear, causing the toothed block 14 to move downwards. The lower lifting rod 15 presses the movable plate 17 and hinge 18 downwards. The push rod 19 converts the downward force on hinge 18 into a force that pushes the connecting plate 21 to move laterally to the left. The movement of the connecting plate 21 causes the sliding rod 25 to slide to the left within the sliding groove 24, thereby opening and closing window 1 (2). 7. Under the tension of spring 28, the window door 2 unfolds. At this time, one outer wall of the inner opening and closing plate 27 of the window door 2 will abut against the outer wall of the inner limiting caliper 5 of the window frame 1. The window frame 1 and the window door 2 are engaged by the triangular limiting mechanism. In this state, the window door 2 can no longer move to the right, thus limiting the opening distance. Moreover, this state is a one-way limiting mechanism. Since the opening and closing plate 27 is triangular in shape, under the elastic tension of spring 28, when the window door 2 moves to the left, the outer wall of the limiting caliper 5 will abut against the inclined outer wall of the opening and closing plate 27, causing the opening and closing plate 27 to retract, completing the one-way movement of the window door 2. This mechanism enables... For ease of use, users only need to rotate the adjustment handle 7 to adjust the width of window door 2 to any limit. Once the width is limited, the window can only be closed, not opened. This mechanism effectively protects children from falling if they try to open the window. Window door 2 is linked to window door 3 via the movable plate 17. When the movable plate 17 moves downwards, the stop block 35 abuts against the protrusion 37 on the inner wall of window door 3, causing window door 2 to be limited on the window frame 1 while simultaneously restricting the movement of window door 3. When window door 2 and window door 3 are in any movable state, the movable plate 17 inside window door 3... The movable plate 17 changes with the movement of window 1 2 and window 2 3. Therefore, the width of the sliding cavity 36 in this invention is relatively large. In windy weather, some dust or impurities may be drawn into the sliding cavity 36, affecting the movement of window 2 3. In this invention, a protective belt 32 is set to block dust and impurities. In this invention, both the movable plate 17 and the clamping magnetic plate 31 are made of magnets. When the movable plate 17 moves, it pushes the clamping magnetic plate 31 on one side to move, and at the same time attracts the clamping magnetic plate 31 on the other side to move, thereby driving the protective belt 32 to rotate on the outer wall of the two rotating rods 33 to block dust and impurities.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage adjustable window stopper, comprising a window frame (1), the inner wall of the window frame (1) is provided with a frame edge (4), the inner wall of the window frame (1) is respectively slidably provided with a window door one (2) and a window door two (3), characterized in that: The limiting buckle mechanism can keep the limiting stability of the first window door (2) and the second window door (3) while providing the anti-theft closure, and can conveniently and timely limit the specific position of the first window door (2) and the second window door (3) in the window frame (1), and the limiting buckle mechanism is arranged on one side of the outer wall of the first window door (2) and the second window door (3) respectively. The retaining mechanism can fix the first window door (2) on the inner wall of the frame edge (4) and cannot be moved when the first window door (2) is closed, and can limit the opening distance between the first window door (2) and the window frame (1), and the retaining mechanism is arranged in the interior of the first window door (2) and can keep the first window door (2) from being moved on the inner wall of the frame edge (4) when the first window door (2) is opened. The retaining mechanism comprises a gear (12), the inner wall of the gear (12) is fixedly connected with the inner wall of a connecting rod (11), an active slot (10) is arranged in the interior of the first window door (2), a retaining plate (13) is movably connected with the inner wall of one side of the active slot (10), a tooth block (14) is fixedly connected with the outer wall of one side of the retaining plate (13), the outer wall of the tooth block (14) is in meshing connection with the outer wall of the gear (12), a pull rod (15) is fixedly connected with the bottom outer wall of the retaining plate (13), an active plate (17) is fixedly connected with the bottom outer wall of the pull rod (15), a hinge one (18) is fixedly connected with the bottom outer wall of the active plate (17), the active plate (17) is hingedly connected with a push rod (19) through the hinge one (18), a hinge two (20) is fixedly connected with the outer wall of one end of the push rod (19) away from the hinge one (18), a connecting plate (21) is hingedly connected with the push rod (19) through the hinge two (20), and the outer wall of the connecting plate (21) is movably connected with the inner wall of a clamping groove (22) arranged in the bottom outer wall of the first window door (2). The connecting adjusting mechanism can limit the second window door (3) while keeping the first window door (2) fixed, and the connecting adjusting mechanism is arranged in the interior of the second window door (3); and the dustproof mechanism can achieve a certain windproof and dustproof effect on the interior of the second window door (3) while the connecting adjusting mechanism is operating. The connecting adjusting mechanism comprises an insertion strip (34), a communication port (29) is arranged in the bottom of the outer wall of one side of the first window door (2) and is in communication with the active slot (10), the outer walls of the two sides of the active plate (17) are movably connected with the inner wall of the communication port (29), the top outer wall of the insertion strip (34) is fixedly connected with the bottom outer wall of the active plate (17), a stop block (35) is fixedly connected with the outer wall of one side of the insertion strip (34), an active cavity (30) is arranged in the bottom outer wall of the second window door (3), a protruding block (37) is fixedly connected with the inner wall of one side of the active cavity (30), and the outer wall of the protruding block (37) is movably connected with the outer wall of the stop block (35).

2. A multi-stage adjustable window limiter according to claim 1, wherein: The limiting buckle mechanism includes an adjusting handle (7) and a clasp (9), one end of the outer wall of the clasp (9) is fixedly connected with one end of the outer wall of the window door two (3), one end of the outer wall of the adjusting handle (7) is fixedly connected with a connecting rod (11), the outer wall of the connecting rod (11) is rotatably connected with the inner wall of the window door one (2), the outer wall of one side of the adjusting handle (7) is fixedly connected with a buckle (8), and the outer wall of one side of the buckle (8) is movably connected with the outer wall of one side of the clasp (9).

3. A multi-stage adjustable window limiter according to claim 2, wherein: The inner wall of the clamping groove (22) is fixedly connected with a mounting bracket (23), the outer wall of the bottom of the linkage plate (21) is fixedly connected with the outer wall of the top of the mounting bracket (23), the outer wall of the top of the mounting bracket (23) is provided with a sliding groove (24) in communication with the inner wall, the outer wall of the bottom of the linkage plate (21) is fixedly connected with a sliding rod (25), the outer wall of the sliding rod (25) is movably connected with the inner wall of the sliding groove (24), the inner wall of the mounting bracket (23) is fixedly connected with a hinge three (26), the mounting bracket (23) is hingedly connected with an opening and closing plate one (27) through the hinge three (26), the outer wall of the opening and closing plate one (27) is movably connected with the outer wall of the sliding rod (25), the inner wall of the mounting bracket (23) is fixedly connected with a spring (28), the outer wall of the end of the spring (28) away from the mounting bracket (23) is fixedly connected with the outer wall of one side of the opening and closing plate one (27), and the inner wall of the frame (4) is fixedly connected with a limiting caliper one (5). The outer wall of the opening and closing plate one (27) is movably connected with the outer wall of the limiting caliper one (5).

4. A multi-stage adjustable window limiter according to claim 3, wherein: The inner wall of the movable groove (10) is fixedly connected with a limiting block (16), and the inner wall of the limiting block (16) is movably connected with the outer wall of the pull rod (15).

5. A multi-adjustable window limiter according to claim 1, wherein: The outer wall of one side of the plug (34) is fixedly connected with an opening and closing plate two (38), the inner wall of one side of the frame (4) is fixedly connected with a limiting caliper two (6), and the outer wall of the limiting caliper two (6) is movably connected with the outer wall of the opening and closing plate two (38).

6. A multi-stage adjustable window limiter according to claim 5, wherein: The dustproof mechanism comprises two clamping magnetic plates (31), the two clamping magnetic plates (31) are respectively magnetically connected to the outer walls of the two sides of the movable plate (17), one side of the outer wall of the window door two (3) is provided with a sliding cavity (36) in communication with the movable cavity (30), the outer walls of the two ends of the clamping magnetic plate (31) are slidably connected with the inner wall of the sliding cavity (36), the inner walls of the two ends of the sliding cavity (36) are rotatably connected with rotating rods (33), the outer walls of the two rotating rods (33) are movably connected with the same protective belt (32), and the outer walls of the two ends of the protective belt (32) are movably connected with the outer walls of the two clamping magnetic plates (31).

Images