A push-pull structure for a ventilation system

Abstract

This invention relates to the field of ventilation system technology, specifically to a push-pull structure for a ventilation system, including a fixed frame and a fan frame, and a push-pull mechanism for connecting the fixed frame and the fan frame. It also includes a limiting component, which comprises an adjusting member disposed on the fixed frame and a slot formed within the adjusting member. A first rotating shaft is disposed in the slot, and a power rod and a gear are fixedly mounted on the outer surface of the first rotating shaft. A rack meshes with the gear below, and a one-way flap is disposed at one end of the rack. When the push-pull mechanism unfolds the fan frame, the adjusting member and the one-way flap limit the push-pull mechanism by moving the adjusting member and rotating the power rod. The beneficial effect of this invention is that the limiting component can flexibly limit the slider 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 achieving the positioning of the fan frame and simplifying the traditional locking steps.

Description

Technical Field

[0001] This invention relates to the field of ventilation system technology, specifically to a push-pull structure for a ventilation system. Background Technology

[0002] As a new type of ventilation system, the casement window is a window type driven by a sliding hinge (sliding support). Its window sash can be pushed outward or pulled inward parallel to the normal direction of the facade to realize the opening and closing action. Unlike the pivot opening mode of the traditional casement window, the window sash of the casement window always remains parallel to the wall facade. There is no outward or inward movement when it is opened, so it does not occupy indoor or outdoor space. Moreover, after the window sash is opened, a ring gap is formed around it, and air can circulate in multiple directions. The ventilation efficiency is more than twice that of the traditional bottom-hung window.

[0003] Patent document CN114215439A discloses a sliding hinge and a window, including a first slide rail, a second slide rail, a first support component, and a second support component. The first slide rail and the second slide rail are parallel to each other. The first support component and the second support component are located between the first slide rail and the second slide rail. The first support component is connected to the first slide rail and the second slide rail, and the connection end of the first support component to the first slide rail and the second slide rail is rotatable relative to the first slide rail and the second slide rail. This application has the ability to reduce or avoid the problem of uneven movement or easy jamming of the sliding hinge when the driving force (push or pull) on the sliding hinge is unbalanced.

[0004] In the prior art of the aforementioned patent, when the window is opened, the sliding hinge will move and unfold simultaneously. Afterwards, the window needs to be locked. The common locking method is to lock the window together with hinge locking and lock cylinder locking. In the sliding hinge locking, positioning blocks are set on the inner and outer sides of the sliders of the two hinges to limit the sliders and achieve the purpose of limiting and locking. However, the positioning blocks need to be fixed to the slide rail with screws. Each adjustment requires tightening and loosening with a screwdriver, which is not flexible enough and the process is relatively cumbersome. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a push-pull structure for ventilation systems, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a push-pull structure for a ventilation system, comprising a fixed frame and a fan frame, and a push-pull mechanism for connecting the fixed frame and the fan frame, further comprising:

[0007] The limiting component includes an adjusting member disposed on a fixed frame and a slot formed in the adjusting member. A first rotating shaft is disposed in the slot. A power rod and a gear are fixedly mounted on the outer surface of the first rotating shaft. A rack meshes with the gear below. A one-way flap is disposed at one end of the rack. When the pushing mechanism unfolds the fan frame, the adjusting member and the power rod are moved and rotated to limit the pushing mechanism, thereby achieving the positioning of the fan frame.

[0008] Preferably, the sliding mechanism includes a slide rail disposed on the fixed frame and the fan frame, and a slider movably mounted in the slide rail, wherein the slider is provided with a sliding support for connecting the fixed frame and the fan frame.

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

[0010] Preferably, it also includes a second positioning module, which includes a driving member disposed on the rack and a driven member in contact with the driving member. A pressing protrusion is fixedly installed at the bottom of the driven member, and a reset mechanism is disposed in the first rotating shaft. 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 circular 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 periphery 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 feature that matches the limit buckle.

[0013] Preferably, a block is fixedly installed at the bottom of the rack, and a square groove adapted to the block is provided inside the adjusting member.

[0014] Preferably, one end of the one-way flap is provided with a mounting groove, and a roller is movably mounted in the mounting groove.

[0015] Preferably, it also includes a dynamic sealing assembly, which includes a driven module and a driving module. The driven module includes a telescopic groove formed inside the fixed frame, in which a telescopic component is movably installed, and a sealing gasket is provided on the top of the telescopic component.

[0016] Preferably, the drive module includes a slide rod fixedly mounted on the slider, and a fourth through slot formed on the adjusting member and the fixed frame. The telescopic member is also provided with a drive slot, and the slide rod is movably mounted with the drive slot.

[0017] In the above technical solution, the beneficial effect of the present invention is that the limiting component can flexibly limit the slider according to the opening and closing position of the fan frame, and in the limiting process, it cooperates with the first positioning module and the second positioning module to complete the fixation of itself, 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 exemplary and illustrative only, and are not intended to limit this disclosure.

[0019] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the structure of the limiting component of the present invention. Figure 1 ;

[0023] Figure 4 This is a comparative structural diagram of the conventional limiting component of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the limiting component of the present invention. Figure 2 ;

[0025] Figure 6 This is a schematic diagram showing the positional relationship between the limiting component, the first positioning module, and the second positioning module of the present invention. Figure 1 ;

[0026] Figure 7 This is a schematic diagram showing the positional relationship between the limiting component, the first positioning module, and the second positioning module of the present invention. Figure 2 ;

[0027] Figure 8 This is a schematic diagram of the specific structure of the second positioning module of the present invention;

[0028] Figure 9 This is a schematic diagram of the unidirectional flap of the present invention in the empty slot.

[0029] Figure 10 This is a schematic diagram showing the positional relationship between the dynamic sealing component and the support component of the present invention. Figure 1 ;

[0030] Figure 11This is a schematic diagram showing the positional relationship between the dynamic sealing component and the support component of the present invention. Figure 2 ;

[0031] Figure 12 This is a partial structural schematic diagram of the dynamic sealing assembly of the present invention.

[0032] In the diagram: 1. Fixed frame; 11. Sector frame; 12. Slide rail; 13. Slider; 14. Sliding support; 15. End cap; 2. Adjusting component; 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 component; 41. Driven component; 42. Guide post; 43. Round block; 44. Return spring; 45. Clamping element 46. ​​Protrusion; 5. Third through groove; 6. Limiting buckle; 7. Limiting groove; 8. Square block; 9. Square groove; 10. Mounting groove; 11. Roller; 12. Slide rod; 13. Fourth through groove; 14. Telescopic groove; 15. Telescopic component; 16. Sealing gasket; 17. Drive groove; 18. Installation space; 19. Pressing component; 10. Second rotating shaft; 11. Upward-curving component; 12. Support component; 13. Positioning pin; 14. Fifth through groove; 15. Baffle. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

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

[0035] The limiting component includes an adjusting member 2 disposed on the fixed frame 1 and a slot 21 opened in the adjusting member 2. A first rotating shaft 22 is disposed in the 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 meshes with the gear 25 below. A one-way flap 27 is disposed at one end of the rack 26. When 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 achieving the positioning of the fan frame 11.

[0036] The sliding mechanism includes a slide rail 12 mounted on the fixed frame 1 and the fan frame 11, and a slider 13 movably mounted in the slide rail 12. The slider 13 is provided with a sliding support 14 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 onto the fixed frame 1. There is more than one slide rail 12, which is 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 rail 12 to drive the sliding supports 14 movably mounted on the sliders 13, thereby opening and closing the fan frame 11. Sealing ends 15 are also fixedly installed at both ends of the slide rail 12 to prevent the sliders 13 from disengaging from the slide rail 12. After unfolding the fan frame 11, it needs to be positioned. In the traditional method, a positioning block is fixedly installed in the slide rail 12 located on the lower side of the fixed frame 1, positioning it inside and outside the sliders of the two hinges to limit the sliders, thereby positioning the fan frame 11, as shown in the attached instruction manual. Figure 4 As shown at point a, it is obvious that this positioning method requires tools to disassemble and assemble the positioning block each time, making it difficult to achieve flexible adjustment and positioning, and the process is not convenient.

[0038] In this invention, the adjusting member 2 is also movably installed in the slide rail 12 located below the fixed frame 1, and a slot 21 is also opened in the slider 13 near 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 is pressed 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, the one-way flap 27 will flip, changing from a right angle state to an acute angle state and entering the interior of the slider 13, as shown in the attached specification. Figure 8 As shown, when the adjusting member 2 contacts the slider 13, the one-way flap 27 moves out of the slider 13 and moves one end of the distance. This distance is greater than the length of the one-way flap 27. When the limit is released, it is convenient for the user to bend the one-way flap 27 so that it can enter the slider 13 and reset. After that, the power rod 23 needs to be flipped to turn it from a horizontal state to a vertical state. The upper surface of the adjusting member 2 is provided with a first through groove 24 that is adapted to the power rod 23 to adapt to the drive path of the power rod 23. When the power rod 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 drive the rack 26, so that the rack 26 drives the one-way flap 27 to move. When the power rod 23 is vertical, the one-way flap 27 will press against the side of the slider 13 away from the adjusting member 2, limit the two sides of the slider 13, prevent it from moving, and realize the positioning of the fan frame 11. The one-way flap 27 can be made of high-quality steel to improve its strength.

[0039] A block 6 is fixedly installed at the bottom of the rack 26. The inside of the adjusting component 2 is provided with a square groove 61 that matches the block 6. One end of the one-way flap 27 is provided with a mounting groove 7. A roller 71 is movably installed in the mounting groove 7. During the movement of the rack 26, the block 6 and the square groove 61 can limit the rack 26 to keep it moving horizontally. When the one-way flap 27 enters the slider 13, the roller 71 will contact the inner wall of the slider 13 and generate rolling friction. Compared with sliding friction, the friction force generated is smaller, which makes it easier for the one-way flap 27 to pass through the slider 13.

[0040] Example 2: Please refer to Figures 6 to 8 It also 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 also includes a second positioning module, which includes a drive member 4 disposed on the rack 26 and a driven member 41 in contact with the drive member 4. A pressing protrusion 45 is fixedly installed at the bottom of the driven member 41. A reset mechanism is disposed in the first rotating shaft 22 and 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 follower 41 is movably installed on the outer surface of the guide post 42, and a reset spring 44 is sleeved on the outer periphery of the guide post 42.

[0043] The outer surface of the power rod 23 is movably mounted with a limit buckle 5, and the upper surface of the adjusting member 2 is provided with a 52 that is compatible with the limit buckle 5.

[0044] Based on Embodiment 1, when the power rod 23 is flipped, the first rotating shaft 22 drives the eccentric wheel 3 to rotate, so that the protruding side of the eccentric wheel 3 abuts against the slide rail 12 through the second through groove 31. The friction between the slide rail 12 and the second through groove 31 can position the adjusting member 2, thereby ensuring the limiting effect on the slider 13. Furthermore, when the power rod 23 is flipped, the gear 25 will also drive the rack 26 to move, so that the rack 26 drives the driving member 4 to move. The driving member 4 drives the driven member 41. The driven member 41 is wedge-shaped, and its inclined surface fits against the inclined surface of the driving member 4. When the driving component 4 moves, it will drive the driven component 41 to move downward. The bottom of the adjusting component 2 is also provided with a third through groove 46 that matches the pressing protrusion 45. The pressing protrusion 45 will press against the slide rail 12 through the third through groove 46 to further position the adjusting component 2. The return spring 44 is located between the top of the inner cavity of the adjusting component 2 and the driven component 41, and one end is fixedly connected to the adjusting component 2 and the other end is fixedly connected to the driven component 41. When the contact limit is reached, the return spring 44 can assist the pressing protrusion 45 to reset. The number of guide posts 42 is greater than one to ensure that the driven component 41 moves vertically up and down.

[0045] Furthermore, after the power rod 23 flips and becomes vertical, the lower limit buckle 5 needs to be lowered so that the limit buckle 5 is inserted into 52 to limit the power rod 23 and keep it in a vertical state. The upper surface of the adjusting member 2 is also provided with a limit groove 51 that matches the limit buckle 5, so that the power rod 23 can be reset to a horizontal state. A magnetic block can also be provided at the end of the adjusting member 2 to position the power rod 23 in a horizontal state.

[0046] Example 3: Please refer to Figures 10 to 12 It also includes a dynamic sealing assembly, 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 component 83 is movably installed in the telescopic groove 82, and a sealing gasket 84 is provided on the top of the telescopic component 83.

[0047] The drive module includes a slide rod 8 fixedly mounted on the slider 13, and a fourth through slot 81 opened on the adjusting member 2 and the fixed frame 1. The telescopic member 83 is also provided with a drive slot 85, and the slide rod 8 and the drive slot 85 are movably installed together.

[0048] Traditional sliding windows typically use a sealing gasket installed under the fixed frame. When the sash is closed, the gasket is pressed against the frame to achieve a seal. However, the gasket is always exposed to wind and sun, which accelerates its aging, reducing its sealing effect and lifespan. In this invention, a telescopic groove 82 is created within the fixed frame 1, and a telescopic component 83 with a sealing gasket 84 is movably installed within it. When the sash 11 unfolds, the movement of the slider 13 moves the slider 8 through the fourth through groove 81, driving the telescopic component 83 via the drive groove 85. This causes the telescopic component 83 to descend, pulling the sealing gasket 84 down into the telescopic groove 82, where it is protected, thus extending its lifespan. (See attached instruction manual.) Figure 11 As shown, when the sector frame 11 is closed, the slider 13 begins to reset, thereby driving the telescopic component 83 to rise for sealing operations. The drive groove 85 is bent, with horizontal grooves on its upper and lower sides. When the sector frame 11 continues to open, after the sealing gasket 84 has completed its rising or falling action, the slider 13 can still move to prevent it from interfering with the continued opening of the sector frame 11.

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

[0050] Specifically, the weight of the fan frame 11 is supported by several sliding supports 14. However, due to the downward force of gravity, the sliding support 14 located at the bottom of the fan frame 11 bears a greater load. In this invention, support components can be added according to the size, weight, and actual installation of the fan frame 11. Based on embodiment 3, when the telescopic member 83 moves downward, it will press down one end of the upturned member 93, causing the other end of the upturned member 93 to rise. By pulling out the support member 94 inside the upturned member 93 and making it support the bottom of the sliding support 14, and then positioning it by the positioning pin 95, the support member 94 supports the sliding support 14, reducing the sliding load. On the one hand, the support 14 bears the load. On the other hand, the upper part 93 is also fixedly installed with a baffle 97. Due to the opening of the fifth through slot 96, when the fan frame 11 is closed, dust will enter the installation space 9. When the fan frame 11 is closed, the upper part 93 is no longer pressed down by the lower part 91. At this time, the upper part 93 will return to the 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 placed close to the side of the lower part 91, so that the upper part 93 near the fifth through slot 96 has a greater weight, which makes it easier for it to reset.

[0051] The aforementioned support components are optional additions that can be added based on actual conditions. Compared to the traditional method of installing connecting rods on the fixed frame 1 and using connecting rods to support the bottom of the fan frame 11, which easily causes the load shared by the connecting rods to act on the fixed frame 1 and damage it, in this invention, the added support components allow the load shared by the upward-curving part 93 to act on the downward-pressing part 91. The downward-pressing part 91 is fixed on the telescopic part 83, and the telescopic part 83 is positioned by the sliding rod 8, which is located in the fourth through groove 81. At this time, the load shared by the upward-curving part 93 is shared by the fixed frame 1, the telescopic part 83, and the sliding rod 8, reducing the damage caused by the load, completing the structural closed loop, and improving practicality.

[0052] 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 push-pull structure for a ventilation system, comprising a fixed frame (1) and a fan frame (11), and a push-pull mechanism for connecting the fixed frame (1) and the fan frame (11), characterized in that: Also includes: The limiting component includes an adjusting member (2) set on the fixed frame (1) and a slot (21) opened in the adjusting member (2). A first rotating shaft (22) is set in the 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) meshes with the gear (25) below. A one-way flap (27) is set at one end of the rack (26). When the flat pushing mechanism unfolds the fan frame (11), the adjusting member (2) and the one-way flap (27) limit the flat pushing mechanism by moving the adjusting member (2) and rotating the power rod (23), thereby realizing the positioning of the fan frame (11). The pushing mechanism includes a slide rail (12) set on the fixed frame (1) and the fan frame (11), and a slider (13) movably installed in the slide rail (12). The slider (13) is provided with a sliding support (14) for connecting the fixed frame (1) and the fan frame (11). It also includes a first positioning module, which includes an eccentric wheel (3) fixedly mounted 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). It also 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 component (83) is movably installed in the telescopic groove (82), and a sealing gasket (84) is provided on the top of the telescopic component (83). The drive module includes a slide rod (8) fixedly mounted on the slider (13) and a fourth through slot (81) opened on the adjusting member (2) and the fixed frame (1). The telescopic member (83) is also provided with a drive slot (85), and the slide rod (8) and the drive slot (85) are movably installed together.

2. The push-pull structure for a ventilation system according to claim 1, characterized in that: It also includes a second positioning module, which includes a drive member (4) disposed on the rack (26) and a driven member (41) in contact with the drive member (4). A pressing protrusion (45) is fixedly installed at the bottom of the driven member (41). A reset mechanism is provided in the adjusting member (2), and the reset mechanism is movably installed with the driven member (41).

3. A push-pull structure for a ventilation system according to claim 2, characterized in that: 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 follower (41) is movably installed on the outer surface of the guide post (42), and a reset spring (44) is sleeved on the outer periphery of the guide post (42).

4. A push-pull structure for a ventilation system according to claim 1, characterized in that: The outer surface of the power rod (23) is movably fitted with a limit buckle (5), and the upper surface of the adjusting member (2) is provided with a (52) that is compatible with the limit buckle (5).

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

6. A push-pull structure for a ventilation system according to claim 1, characterized in that: One end of the one-way flap (27) is provided with an installation groove (7), and a roller (71) is movably installed in the installation groove (7).

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