Horizontal pushing structure for ventilation system

Abstract

The invention relates to the technical field of ventilation systems, in particular to a horizontal pushing structure for a ventilation system, which comprises a fixed frame, a fan frame and a horizontal pushing mechanism for connecting the fixed frame and the fan frame, and further comprises a limiting assembly, the limiting assembly comprises an adjusting part arranged on the fixed frame and an empty slot formed in the adjusting part, a first rotating shaft is arranged in the empty slot, and a second rotating shaft is arranged in the first rotating shaft; a power rod and a gear are fixedly installed on the outer surface of the first rotating shaft, a toothed bar is meshed with the lower portion of the gear, a one-way turning plate is arranged at one end of the toothed bar, and after the horizontal pushing mechanism unfolds the sash frame, the adjusting piece and the one-way turning plate are made to limit the horizontal pushing mechanism by moving the adjusting piece and rotating the power rod; the sliding block has the beneficial effects that the sliding block can be flexibly limited through the limiting assembly according to the opening and closing position of the fan frame, and in the limiting process, the sliding block is fixed by being matched with the first positioning module and the second positioning module, so that positioning of the fan frame is achieved, and traditional locking steps are simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilation systems, and specifically to a flat-push structure for a ventilation system. Background Art

[0002] As a new type of ventilation system, a flat-push window is a window type driven by a flat-push hinge (sliding support). Its window sash can be pushed outwards or pulled back in parallel along the normal direction of the facade where it is located to achieve the opening and closing action. Different from the axial rotation opening mode of traditional casement windows, the window sash of the flat-push window always remains parallel to the wall facade, and there is no outward swing or inward retraction action during opening. Therefore, it does not occupy indoor and outdoor space, and an annular gap is formed around the window sash after opening, allowing air to circulate in multiple directions, and the ventilation efficiency is more than twice that of traditional bottom-hung windows.

[0003] Patent document CN114215439A discloses a flat-push hinge and a window, including a first slide rail, a second slide rail, a first support assembly, and a second support assembly. The first slide rail is parallel to the second slide rail. The first support assembly and the second support assembly are located between the first slide rail and the second slide rail. The first support assembly is connected to the first slide rail and the second slide rail, and the connection ends of the first support assembly to the first slide rail and the second slide rail are rotatable relative to the first slide rail and the second slide rail. This application is capable of reducing or avoiding the problem of unsmooth movement or easy jamming of the flat-push hinge when the driving force (thrust or pull) on the flat-push hinge is unbalanced.

[0004] In the prior art such as the above patent, when opening the window, the flat-push hinge will move and unfold simultaneously, and then the window needs to be locked. The common locking methods are to lock the window jointly by hinge locking and lock cylinder locking. Among them, for the locking of the flat-push hinge, positioning blocks are respectively arranged on the inner and outer sides of the sliders of the two hinges to limit the sliders, so as to achieve the purpose of limiting and locking. However, the setting of the positioning blocks requires using screws to fix them on the slide rail, and a screwdriver is needed for tightening and loosening each time for adjustment, and the operation is not flexible enough and the process is rather cumbersome. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a flat-push structure for a ventilation system, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A flat-push structure for a ventilation system includes a fixed frame, a sash frame, and a flat-push mechanism for connecting the fixed frame and the sash frame, and further includes:

[0007] The limiting component includes an adjusting member provided on the fixed frame and an empty slot opened in the adjusting member. A first rotating shaft is provided in the empty slot. A power rod and a gear are fixedly installed on the outer surface of the first rotating shaft. A toothed rod is engaged below the gear. One end of the toothed rod is provided with a one-way flap. After the flat push mechanism unfolds the fan frame, by moving the adjusting member and rotating the power rod, the adjusting member and the one-way flap limit the flat push mechanism, thereby realizing the positioning of the fan frame.

[0008] Preferably, the flat push mechanism includes slide rails provided on the fixed frame and the fan frame, and sliders movably installed in the slide rails. A slide support is provided on the slider for connecting the fixed frame and the fan frame.

[0009] Preferably, it further includes a first positioning module, which includes an eccentric wheel fixedly installed on the outer surface of the first rotating shaft and a second through slot opened at the bottom of the adjusting member.

[0010] Preferably, it further includes a second positioning module, which includes a driving member provided on the toothed rod and a driven member in contact with the driving member. A pressing convex block is fixedly installed at the bottom of the driven member. A reset mechanism is provided in the first rotating shaft, and the reset mechanism is movably installed with the driven member.

[0011] Preferably, the reset mechanism includes a guide post fixedly installed inside the adjusting member and a round block fixedly installed at the bottom of the guide post. The driven member is movably installed on the outer surface of the guide post, and a reset spring is sleeved on the outer peripheral side of the guide post.

[0012] Preferably, a limit buckle is movably installed on the outer surface of the power rod, and the upper surface of the adjusting member is provided with a matching one for the limit buckle.

[0013] Preferably, a square block is fixedly installed at the bottom of the toothed rod, and a square groove matching the square block is opened inside the adjusting member.

[0014] Preferably, an installation groove is opened at one end of the one-way flap, and a roller is movably installed in the installation groove.

[0015] Preferably, it further includes a dynamic sealing component. The dynamic sealing component includes a driven module and a driving module. The driven module includes a telescopic groove opened inside the fixed frame. A telescopic member is movably installed in the telescopic groove, and a sealing pad is provided at the top of the telescopic member.

[0016] Preferably, the driving module includes a slide rod fixedly installed on the slider and a fourth through slot opened on the adjusting member and the fixed frame. A driving groove is also opened on the telescopic member, and the slide rod is movably installed with the driving groove.

[0017] In the above technical solution, the beneficial effects of the present invention are as follows: Through the limiting component, the slider can be flexibly limited according to the opening and closing position of the fan frame, and during the limiting process, it cooperates with the first positioning module and the second positioning module to complete its own fixation, thereby realizing the positioning of the fan frame and simplifying the traditional locking steps.

[0018] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory, and are not intended to limit the present disclosure.

[0019] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a complete disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Structural schematic of the present invention Figure 1 ;

[0021] Figure 2 Structural schematic of the present invention Figure 2 ;

[0022] Figure 3 Structural schematic of the limiting component of the present invention Figure 1 ;

[0023] Figure 4 Comparative structural schematic diagram of the traditional limiting component of the present invention;

[0024] Figure 5 Structural schematic of the limiting component of the present invention Figure 2 ;

[0025] Figure 6 Structural schematic of the positional relationship among the limiting component, the first positioning module and the second positioning module of the present invention Figure 1 ;

[0026] Figure 7 Structural schematic of the positional relationship among the limiting component, the first positioning module and the second positioning module of the present invention Figure 2 ;

[0027] Figure 8 Specific structural schematic diagram of the second positioning module of the present invention;

[0028] Figure 9 Structural schematic diagram of the state of the one-way flap in the empty slot of the present invention;

[0029] Figure 10 Structural schematic of the positional relationship between the dynamic sealing component and the support component of the present invention Figure 1 ;

[0030] Figure 11Schematic structural diagram of the positional relationship between the dynamic sealing component and the support component of the present invention Figure 2 ;

[0031] Figure 12 Partial structural schematic diagram of the dynamic sealing component of the present invention.

[0032] In the figure: 1. Fixed frame; 11. Fan frame; 12. Slide rail; 13. Slide block; 14. Sliding support; 15. Sealing end; 2. Adjusting member; 21. Empty slot; 22. First rotating shaft; 23. Power rod; 24. First through slot; 25. Gear; 26. Rack; 27. One-way flap; 3. Eccentric wheel; 31. Second through slot; 4. Driving member; 41. Driven member; 42. Guide post; 43. Round block; 44. Return spring; 45. Tightening convex block; 46. Third through slot; 5. Limit buckle; 51. Limit slot; 6. Square block; 61. Square slot; 7. Installation slot; 71. Roller; 8. Slide bar; 81. Fourth through slot; 82. Telescopic slot; 83. Telescopic member; 84. Sealing gasket; 85. Driving slot; 9. Installation space; 91. Pressing member; 92. Second rotating shaft; 93. Upward-tilting member; 94. Support member; 95. Positioning pin; 96. Fifth through slot; 97. Baffle. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0034] Embodiment 1: Please refer to Figures 1 to 7 , and Figure 9 , the present invention provides a technical solution: A flat-pushing structure for a ventilation system, including a fixed frame 1 and a fan frame 11, and a flat-pushing mechanism for connecting the fixed frame 1 and the fan frame 11, further including:

[0035] A limiting component, which includes an adjusting member 2 provided on the fixed frame 1 and an empty slot 21 opened in the adjusting member 2. A first rotating shaft 22 is arranged in the empty slot 21. A power rod 23 and a gear 25 are fixedly installed on the outer surface of the first rotating shaft 22. A rack 26 is engaged below the gear 25. One end of the rack 26 is provided with a one-way flap 27. After the flat-pushing mechanism unfolds the fan frame 11, by moving the adjusting member 2 and rotating the power rod 23, the adjusting member 2 and the one-way flap 27 limit the flat-pushing mechanism, thereby realizing the positioning of the fan frame 11.

[0036] The flat-pushing mechanism includes slide rails 12 provided on the fixed frame 1 and the fan frame 11, and slide blocks 13 movably installed in the slide rails 12. A sliding support 14 is arranged on the slide blocks 13 for connecting the fixed frame 1 and the fan frame 11.

[0037] Specifically, when the fixed frame 1 and the fan frame 11 are not unfolded, the fan frame 11 is fitted on the fixed frame 1. The number of slide rails 12 is greater than one, and they are fixedly installed on the four sides of the fixed frame 1 and the fan frame 11. Two sliders 13 are symmetrically arranged in the slide rails 12 to drive the slide struts 14 movably installed on the sliders 13, thereby realizing the opening and closing of the fan frame 11. Sealing ends 15 are also fixedly installed at both ends of the slide rails 12 to prevent the sliders 13 from detaching from the slide rails 12. After the fan frame 11 is unfolded, it is necessary to position the fan frame 11. In the traditional method, a positioning block is fixedly installed in the slide rail 12 at the lower side position of the fixed frame 1, so that it is located inside and outside the sliders of the two hinges to limit the sliders, thereby realizing the positioning of the fan frame 11, as shown at a in the attached drawing of the specification. Obviously, this positioning method requires disassembling and assembling the positioning block with tools every time, making it difficult to achieve the purpose of flexible adjustment and positioning, and the use process is not convenient enough; Figure 4 As shown in a of the attached drawing of the specification, obviously, this positioning method requires disassembling and assembling the positioning block with tools every time, making it difficult to achieve the purpose of flexible adjustment and positioning, and the use process is not convenient enough;

[0038] In the present invention, the adjusting member 2 is also movably installed in the slide rail 12 at the lower side of the fixed frame 1, and an empty slot 21 is also opened in the slider 13 close to the one-way flap 27. When the fan frame 11 is unfolded, by moving the adjusting member 2, one end of the adjusting member 2 abuts against the slider 13. During this process, the one-way flap 27 will first contact the slider 13. Under the interference of the slider 13, at this time, the one-way flap 27 flips, changing from a right-angle state to an acute-angle state and entering the slider 13. As shown in the attached drawing of the specification, when the adjusting member 2 contacts the slider 13, the one-way flap 27 moves out of the slider 13 and moves a certain distance. This distance is greater than the length of the one-way flap 27. When releasing the limit, it is convenient for the user to bend the one-way flap 27 to make it enter the slider 13 and reset. After that, it is necessary to flip the power lever 23 to turn it from a horizontal state to a vertical state. A first through slot 24 adapted to the power lever 23 is opened on the upper surface of the adjusting member 2 to adapt to the driving path of the power lever 23. When the power lever 23 rotates, it will drive the first rotating shaft 22 to rotate, so that the first rotating shaft 22 drives the gear 25 to rotate. The gear 25 can be used to drive the toothed rod 26, so that the toothed rod 26 drives the one-way flap 27 to move. When the power lever 23 is vertical, the one-way flap 27 will abut against the side of the slider 13 away from the adjusting member 2 to limit both sides of the slider 13 to prevent it from moving, realizing the positioning of the fan frame 11. The one-way flap 27 can be made of fine steel to improve its strength; Figure 8 As shown in the attached drawing of the specification, when the adjusting member 2 contacts the slider 13, the one-way flap 27 moves out of the slider 13 and moves a certain distance. This distance is greater than the length of the one-way flap 27. When releasing the limit, it is convenient for the user to bend the one-way flap 27 to make it enter the slider 13 and reset. After that, it is necessary to flip the power lever 23 to turn it from a horizontal state to a vertical state. A first through slot 24 adapted to the power lever 23 is opened on the upper surface of the adjusting member 2 to adapt to the driving path of the power lever 23. When the power lever 23 rotates, it will drive the first rotating shaft 22 to rotate, so that the first rotating shaft 22 drives the gear 25 to rotate. The gear 25 can be used to drive the toothed rod 26, so that the toothed rod 26 drives the one-way flap 27 to move. When the power lever 23 is vertical, the one-way flap 27 will abut against the side of the slider 13 away from the adjusting member 2 to limit both sides of the slider 13 to prevent it from moving, realizing the positioning of the fan frame 11. The one-way flap 27 can be made of fine steel to improve its strength;

[0039] A square block 6 is fixedly installed at the bottom of the rack bar 26. A square groove 61 adapted to the square block 6 is provided inside the adjusting member 2. An installation groove 7 is provided at one end of the one-way flap 27. A roller 71 is movably installed in the installation groove 7. During the movement of the rack bar 26, the rack bar 26 can be limited by the square block 6 and the square groove 61 to keep it moving horizontally. When the roller 71 enters the inside of the slider 13 with the one-way flap 27, it will contact the inner wall of the slider 13 and generate rolling friction. Compared with sliding friction, the generated frictional force is smaller, which facilitates the one-way flap 27 to pass through the slider 13.

[0040] Embodiment 2: Please refer to Figures 6 to 8 , and further includes a first positioning module, which includes an eccentric wheel 3 fixedly installed on the outer surface of the first rotating shaft 22, and a second through groove 31 opened at the bottom of the adjusting member 2.

[0041] It further includes a second positioning module, which includes a driving member 4 arranged on the rack bar 26, and a driven member 41 in contact with the driving member 4. A pressing convex block 45 is fixedly installed at the bottom of the driven member 41. A reset mechanism is arranged in the first rotating shaft 22, and the reset mechanism is movably installed with the driven member 41.

[0042] The reset mechanism includes a guide post 42 fixedly installed inside the adjusting member 2, and a round block 43 fixedly installed at the bottom of the guide post 42. The driven member 41 is movably installed on the outer surface of the guide post 42, and a reset spring 44 is sleeved on the outer peripheral side of the guide post 42.

[0043] A limit buckle 5 is movably installed on the outer surface of the power rod 23. A 52 adapted to the limit buckle 5 is opened on the upper surface of the adjusting member 2.

[0044] On the basis of Embodiment 1, when the power rod 23 flips, the first rotating shaft 22 will drive the eccentric wheel 3 to rotate, so that the convex side of the eccentric wheel 3 abuts against the slide rail 12 through the second through groove 31. The adjusting member 2 can be positioned by the frictional force between the slide rail 12 and the second through groove 31, so as to ensure the limiting effect on the slider 13. Further, when the power rod 23 is flipped, the gear 25 will also drive the rack bar 26 to move, so that the rack bar 26 drives the driving member 4 to move. The driving member 4 is used to drive the driven member 41. The shape of the driven member 41 is wedge-shaped, and its inclined surface fits with the inclined surface of the driving member 4. When the driving member 4 moves, it will drive the driven member 41 to move downward. A third through groove 46 adapted to the pressing convex block 45 is also opened at the bottom of the adjusting member 2. The pressing convex block 45 will abut against the slide rail 12 through the third through groove 46 to further position the adjusting member 2. The reset spring 44 is located between the top of the inner cavity of the adjusting member 2 and the driven member 41, and one end is fixedly connected to the adjusting member 2 and the other end is fixedly connected to the driven member 41. When the limit is contacted, the reset spring 44 can be used to assist the pressing convex block 45 to reset. The number of the guide posts 42 is greater than one to ensure that the driven member 41 moves vertically up and down;

[0045] Further, after the power rod 23 flips and is in a vertical state, it is necessary to slide down the limit buckle 5 so that the limit buckle 5 is inserted into 52 to limit the power rod 23 and keep it in a vertical state. A limit groove 51 adapted to the limit buckle 5 is also provided on the upper surface of the adjusting member 2 to facilitate the power rod 23 to reset to a horizontal state. A magnetic attraction block can also be provided at the end of the adjusting member 2 to position the power rod 23 in a horizontal state.

[0046] Embodiment 3: Please refer to Figures 10 to 12 , and it further includes a dynamic sealing assembly. The dynamic sealing assembly includes a driven module and a driving module. The driven module includes a telescopic groove 82 opened inside the fixed frame 1. A telescopic member 83 is movably installed in the telescopic groove 82, and a sealing gasket 84 is provided at the top of the telescopic member 83.

[0047] The driving module includes a sliding rod 8 fixedly installed on the slider 13, and a fourth through groove 81 opened on the adjusting member 2 and the fixed frame 1. A driving groove 85 is also opened on the telescopic member 83, and the sliding rod 8 is movably installed between the driving groove 85.

[0048] The sealing design of the traditional horizontal sliding window usually installs a sealing wool gasket on the lower side of the fixed frame. When the sash frame is closed, it will contact and squeeze the sealing wool gasket to achieve the sealing purpose. However, the sealing wool gasket has always been in an exposed state, and in the environment of wind, sun and rain, it will accelerate its aging, reduce the sealing effect and service life. In the invention, by opening a telescopic groove 82 in the fixed frame 1 and movably installing the telescopic member 83 with the sealing gasket 84 therein, when the sash frame 11 is unfolded, due to the movement of the slider 13, it will drive the sliding rod 8 to move in the fourth through groove 81 and drive the telescopic member 83 through the driving groove 85, so that the telescopic member 83 descends. When the telescopic member 83 descends, it will drive the sealing gasket 84 to descend and make it enter the telescopic groove 82, being in a protected state and improving its service life. As shown in the attached Figure 11 figure, correspondingly, when the sash frame 11 is closed, the slider 13 starts to reset, thereby driving the telescopic member 83 to rise for sealing operation. The driving groove 85 is bent, and its upper and lower sides are horizontal grooves. When the sash frame 11 is continuously opened, after the sealing gasket 84 rises or descends, the slider 13 can still move to prevent it from interfering with the continuous opening of the sash frame 11.

[0049] In another embodiment of the present invention, please refer to Figure 2 , Figure 9 and Figure 10, also includes a supporting component, which includes an installation space 9 opened inside the fixed frame 1, and second rotating shafts 92 are fixedly installed on both sides of the installation space 9, and an upward member 93 is movably installed on the other end of the second rotating shaft 92, and a supporting member 94 is movably installed inside the upward member 93, and positioning holes are opened on the upward member 93 and the supporting member 94, and positioning pins 95 are inserted in the positioning holes. A fifth through groove 96 is opened on the fixed frame 1, and a downward pressing member 91 is fixedly installed on the lower side of the telescopic member 83.

[0050] Specifically, the weight of the sash frame 11 is borne by a number of sliding supports 14, but due to the downward force of gravity, the sliding support 14 located at the bottom of the sash frame 11 bears a greater load. In the present invention, a support assembly can be added according to the size, gravity and actual installation conditions of the sash frame 11. On the basis of Example 3, when the telescopic member 83 moves downward, it will press down one end of the upward member 93, so that the other end of the upward member 93 is tilted, and the support member 94 inside the upward member 93 is pulled out and supported by the bottom of the sliding support 14, and then positioned by the positioning pin 95, so that the support member 94 supports the sliding support 14, reducing the sliding On the other hand, a baffle 97 is fixedly mounted on the upturned member 93. Due to the opening of the fifth through slot 96, dust will enter the installation space 9 when the sash frame 11 is closed. When the sash frame 11 is closed, the upturned member 93 is no longer pressed down by the down-pressing member 91. At this time, the upturned member 93 will return to a horizontal state. At this time, the baffle 97 is in a vertical state, which can shield the fifth through slot 96 and reduce the entry of dust. When the second rotating shaft 92 is installed, it can be close to the side of the down-pressing member 91, so that the weight of the upturned member 93 close to the fifth through slot 96 is greater, which is convenient for its reset.

[0051] The above-mentioned support assembly is an additional structure that can be added according to actual conditions. Compared with the traditional method of installing a connecting rod on the fixed frame 1 and supporting the fan frame 11 from the bottom of the connecting rod, it is easy for the load shared by the connecting rod to act on the fixed frame 1, causing damage to the fixed frame 1. In the present invention, in the added support assembly, the load shared by the upward component 93 will act on the downward pressure component 91, and the downward pressure component 91 is fixed on the telescopic component 83, and the telescopic component 83 is positioned by the slide rod 8, and the slide rod 8 is in the fourth through groove 81. At this time, the load shared by the upward component 93 will be shared by the fixed frame 1, the telescopic component 83 and the slide rod 8, thereby reducing the damage caused by the load and completing the structural closed loop to improve practicality.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flat-push structure for a ventilation system, comprising a fixed frame (1) and a fan frame (11), and a flat-push mechanism for connecting the fixed frame (1) and the fan frame (11), characterized in that: It further includes: A limit component, which includes an adjusting member (2) provided on the fixed frame (1), and an empty slot (21) opened in the adjusting member (2). A first rotating shaft (22) is arranged in the empty slot (21). A power rod (23) and a gear (25) are fixedly installed on the outer surface of the first rotating shaft (22). A rack (26) is engaged below the gear (25). One end of the rack (26) is provided with a one-way flap (27). After the flat-pushing mechanism unfolds the fan frame (11), by moving the adjusting member (2) and rotating the power rod (23), the adjusting member (2) and the one-way flap (27) limit the flat-pushing mechanism, thereby realizing the positioning of the fan frame (11).

2. The flat-pushing structure for a ventilation system according to claim 1, wherein: The flat-pushing mechanism includes slide rails (12) provided on the fixed frame (1) and the fan frame (11), and sliders (13) movably installed in the slide rails (12). A sliding support (14) is provided on the slider (13) for connecting the fixed frame (1) and the fan frame (11).

3. The flat-pushing structure for a ventilation system according to claim 1, wherein: It further includes a first positioning module, which includes an eccentric wheel (3) fixedly installed on the outer surface of the first rotating shaft (22), and a second through groove (31) opened at the bottom of the adjusting member (2).

4. A push-in structure for a ventilation system according to claim 1, characterized in that: It further includes a second positioning module, which includes a driving member (4) provided on the rack (26), and a driven member (41) in contact with the driving member (4). A pressing convex block (45) is fixedly installed at the bottom of the driven member (41). A reset mechanism is arranged in the first rotating shaft (22), and the reset mechanism is movably installed with the driven member (41).

5. The flat push structure for a ventilation system according to claim 4, wherein: The reset mechanism includes a guide post (42) fixedly installed inside the adjusting member (2), and a round block (43) fixedly installed at the bottom of the guide post (42). The driven member (41) is movably installed on the outer surface of the guide post (42), and a reset spring (44) is sleeved on the outer peripheral side of the guide post (42).

6. A push structure for a ventilation system according to claim 1, characterized in that: A limit buckle (5) is movably installed on the outer surface of the power rod (23), and a (52) adapted to the limit buckle (5) is opened on the upper surface of the adjusting member (2).

7. The flat push structure for a ventilation system according to claim 1, characterized in that: A square block (6) is fixedly installed at the bottom of the rack (26), and a square groove (61) adapted to the square block (6) is opened inside the adjusting member (2).

8. A flat-pushing structure for a ventilation system according to claim 1, characterized in that: An installation groove (7) is opened at one end of the one-way flap (27), and a roller (71) is movably installed in the installation groove (7).

9. The flat-pushing structure for a ventilation system according to claim 1, characterized in that: It further includes a dynamic sealing component, which includes a driven module and a driving module. The driven module includes a telescopic groove (82) opened inside the fixed frame (1). A telescopic member (83) is movably installed in the telescopic groove (82), and a sealing pad (84) is arranged at the top of the telescopic member (83).

10. The flat push structure for a ventilation system according to claim 9, wherein: The driving module includes a slide rod (8) fixedly installed on the slider (13), and a fourth through groove (81) opened on the adjusting member (2) and the fixed frame (1). A driving groove (85) is also opened on the telescopic member (83), and the slide rod (8) is movably installed with the driving groove (85).

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