Window closers and tilt-and-turn windows

Abstract

The present invention discloses a window closer and an inward-opening and tilting window. The window closer comprises a first elastic component having a fixed end and a movable end; a limiting mechanism, which limits the movable end of the first elastic component so that the first elastic component is in a compressed state, and the limiting mechanism can release the first elastic component after detecting a fire; a guide component; and a cable, which bypasses the guide component, and the cable can be pulled back along with the released movable end of the first elastic component. The inward-opening and tilting window comprises a window closer. When no fire occurs, the first elastic component is in a compressed state, and the window sash can be opened and closed freely. When a fire occurs, the limiting mechanism releases the first elastic component, and the compressed first elastic component rebounds, pulling back the cable so that the window sash and the window frame are closed. The technical solution uses a cable to close doors and windows, and the installation method is more flexible, not limited by the types of doors and windows, and can meet the assembly and use requirements of various types of doors and windows such as inward-opening and tilting windows, and automatically close the doors and windows when a fire occurs.

Description

Technical Field

[0001] The invention is used in the field of fireproof doors and windows, and particularly relates to a window closer and an inward opening and tilting window. Background Art

[0002] With the development of my country's construction industry, building doors and windows, especially fireproof windows installed on exterior walls, have higher requirements for blocking smoke and flames to prevent major losses in the event of a fire. In order to have better fireproof performance, fireproof windows are required to have the function of automatically closing in the event of a fire. At the same time, fireproof windows are also required to be flexible and easy to operate during daily use.

[0003] However, in the prior art, in order to realize the automatic closing function, it is necessary to set a complex automatic closing device on the fireproof doors and windows, which occupies a large space of the doors and windows, and has poor opening and closing flexibility and inconvenient operation during daily use.

[0004] In addition, the inward opening and tilting window is a window that can be placed in three different positions: locked, open, and tilted by rotating the window handle to drive the linkage hardware mechanism inside the window. In view of the various opening states of the inward opening and tilting window, few existing technologies can achieve automatic closing when a fire occurs. Summary of the invention

[0005] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a window closer and an inward-opening and tilting window, which can meet the assembly and use requirements of various types of doors and windows such as inward-opening and tilting windows, and automatically close the doors and windows in the event of a fire.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] In the first aspect, a window closer comprises

[0008] A first elastic component having a fixed end and a movable end;

[0009] a limiting mechanism, which limits the movable end of the first elastic component so that the first elastic component is in a compressed state, and the limiting mechanism can release the first elastic component after detecting a fire;

[0010] Guide components;

[0011] A pulling cable is passed around the guide component, and the pulling cable can be pulled back along with the released movable end of the first elastic component.

[0012] In combination with the first aspect, in some implementations of the first aspect, the limiting mechanism includes a temperature sensing element.

[0013] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the movable end of the first elastic component is provided with a first slider, the limiting mechanism also includes a limiting component, the limiting component has limiting teeth, the temperature sensing element is against the limiting component, and the limiting teeth of the limiting component clamp the first slider.

[0014] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, the limiting tooth and the slider are matched through an inclined surface, and the force between the limiting tooth and the slider has a component force that separates the limiting tooth from the slider.

[0015] In combination with the first aspect and the above implementations, in some implementations of the first aspect, a protective tube is further included, and the first elastic component and the first sliding block are both disposed in the protective tube.

[0016] In combination with the first aspect and the above-mentioned implementation manner, in some implementation manners of the first aspect, the limiting mechanism also includes a mounting seat, the mounting seat is connected to the protective tube, the limiting component is hinged to the mounting seat, the mounting seat and the protective tube are provided with through holes, the limiting tooth passes through the through holes and cooperates with the first slider, the mounting seat is provided with a support seat, and the temperature sensing element is supported between the support seat and the limiting component.

[0017] In combination with the first aspect and the above implementations, in some implementations of the first aspect, the further

[0018] A second sliding block is disposed in the protective tube;

[0019] A cable fixing plate connected to the second slider, and the cable is connected to the cable fixing plate;

[0020] The second elastic component is disposed between the first sliding block and the second sliding block, and the elastic coefficient of the first elastic component is greater than the elastic coefficient of the second elastic component.

[0021] In combination with the first aspect and the above-mentioned implementation methods, in certain implementation methods of the first aspect, a positioning and tightening block is provided on the cable fixing plate, one end of the cable is connected to the positioning and tightening block, and the other end is connected to the mounting bracket, a connecting groove is provided on the mounting bracket, a cylindrical terminal is provided on the end of the cable, the cable is clamped in the connecting groove through the cylindrical terminal, and a quick-release clamping nut is provided on the mounting bracket.

[0022] In combination with the first aspect and the above-mentioned implementations, in some implementations of the first aspect, a limiting screw cooperating with the second slider is provided at the distal end of the protective tube, a limiting sleeve is provided between the first slider and the second slider, and the second elastic component is sleeved on the outside of the limiting sleeve.

[0023] In a second aspect, an inward opening and tilting window comprises the window closer described in any implementation of the first aspect.

[0024] One of the above technical solutions has at least one of the following advantages or beneficial effects: when in use, the main body of the window closer is connected to the window frame (window sash), the cable is connected to the window sash (window frame), and when no fire occurs, the first elastic component is in a compressed state, and the window sash can be opened and closed freely. When a fire occurs, the limiting mechanism releases the first elastic component, and the compressed first elastic component rebounds, pulling back the cable so that the window sash and the window frame are closed. This technical solution uses a cable to close doors and windows, and the installation method is more flexible and is not limited by the type of doors and windows. It can meet the assembly and use requirements of various types of doors and windows such as inward-opening and inward-tilting windows, and automatically closes the doors and windows in the event of a fire.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention when a window is open and no fire occurs;

[0028] Figure 2 yes Figure 1 A schematic diagram of the structure of an embodiment in which a window is closed when no fire occurs;

[0029] Figure 3 yes Figure 1 The illustrated embodiment is a schematic diagram of the structure of the window closing state when a fire occurs. DETAILED DESCRIPTION

[0030] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0031] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0032] In the present invention, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present invention, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0034] The embodiment of the present invention provides a window closer, which can be installed on doors and windows to realize the automatic closing function of doors and windows when a fire occurs. The embodiment of the present invention is described by taking the installation on the window as an example, but the present invention is not limited to this. Figure 1 The window closer includes a first elastic component 1, a limiting mechanism, a guide component 2 and a cable 3, wherein the first elastic component 1 has a fixed end and a movable end. The first elastic component 1 may be a spring, a spring sheet, a gas strut, etc., which is used to provide a driving force for pulling back the cable 3. When in use, the fixed end of the first elastic component 1 is connected to the window sash or window frame, and the movable end of the first elastic component 1 is directly or indirectly connected to the cable 3, which is used to pull the cable 3 after a fire occurs. The limiting mechanism cooperates directly or indirectly with the first elastic component 1, and limits the movable end of the first elastic component 1, so that the first elastic component 1 is in a compressed state. The limiting mechanism can release the first elastic component 1 after detecting the occurrence of a fire. The guide component 2 may be a guide shaft, a guide wheel, etc. The guide component 2 is used to adjust the direction of the cable 3, so that the cable 3 is adjusted from the movement direction of the movable end to the opening and closing direction of the window sash. The cable 3 may be a steel wire rope, a nylon rope, or other types of ropes, see Figure 1 The cable 3 passes around the guide component 2, one end of the cable 3 is directly or indirectly connected to the movable end of the first elastic component 1, the cable 3 can be pulled back with the released movable end of the first elastic component 1, and the other end of the cable 3 is connected to the window frame or window sash.

[0035] When in use, the main body of the window closer is connected to the window frame (window sash), and the cable 3 is connected to the window sash (window frame). When no fire occurs, refer to Figure 1 , Figure 2, the first elastic component 1 is in a compressed state, and the window sash can be opened and closed freely. Figure 3 , the limiting mechanism releases the first elastic component 1, and the compressed first elastic component 1 rebounds, pulling back the cable 3 so that the window sash and the window frame are closed. This technical solution uses the cable 3 to close the door and window, and the installation method is more flexible and not limited by the type of door and window. It can meet the assembly and use requirements of various types of doors and windows such as inward-opening and inward-tilting windows, and automatically close the door and window in case of fire.

[0036] Among them, the limiting mechanism includes a temperature sensing element 4, which can be made of fusible alloy, temperature sensing glass ball, etc. The temperature sensing element 4 maintains structural integrity before the fire occurs, and limits the movable end of the first elastic component 1. After the fire occurs, the temperature sensing element 4 breaks (temperature sensing glass ball) and melts (fusible alloy), thereby releasing the limit on the movable end of the first elastic component 1, and the first elastic component 1 is released, and finally drives the cable 3 to be pulled back.

[0037] The temperature sensing element 4 can directly cooperate with the movable end of the first elastic component 1 to achieve the limiting effect, or can indirectly cooperate with the movable end of the first elastic component 1 to achieve the limiting effect. For example, in some embodiments, see Figure 1 The movable end of the first elastic component 1 is provided with a first slider 5, and the limiting mechanism further includes a limiting component 6, which has a limiting tooth 7. The temperature sensing element 4 abuts against the limiting component 6, and the limiting tooth 7 of the limiting component 6 clamps the first slider 5. In this embodiment, the temperature sensing element 4 maintains structural integrity before a fire occurs, and supports the limiting component 6 from the rear side. The limiting component 6 limits the first slider 5 at the movable end of the first elastic component 1 through the limiting tooth 7, so that the first elastic component 1 is in a compressed state. Figure 3 After a fire occurs, the temperature sensing element 4 breaks (temperature sensing glass ball) and melts (fusible alloy), thereby releasing the support for the limiting component 6. The limiting teeth 7 of the limiting component 6 are separated from the first slider 5, and the first elastic component 1 is released, finally driving the cable 3 to be pulled back.

[0038] Furthermore, in order to realize automatic separation of the limit tooth 7 and the slider after a fire occurs, the limit tooth 7 and the slider are matched through an inclined surface, and the acting force between the limit tooth 7 and the slider has a component force that separates the limit tooth 7 from the slider. When a fire occurs, the temperature sensing element 4 breaks (temperature sensing glass ball) and melts (fusible alloy), thereby releasing the support for the limit component 6. The limit tooth 7 of the limit component 6 is automatically separated from the first slider 5 under the action of the lateral component force of the inclined surface, and the first elastic component 1 is released, thereby driving the cable 3 to be pulled back.

[0039] In some embodiments, the first elastic component 1 and the first slider 5 can be directly assembled in the existing profile groove of the window sash or window frame to achieve guidance. Figure 1 , Figure 2 , Figure 3 , also includes a protective tube 8, the first elastic component 1 and the first slider 5 are both arranged in the protective tube 8, the first elastic component 1 and the first slider 5 are guided by the protective tube 8, and form an assembly, which can be directly assembled with the window sash or window frame when in use, and the structure is more concise.

[0040] For further information, see Figure 1 , Figure 2 , Figure 3 The limiting mechanism also includes a mounting seat 9, which is connected to the protective tube 8. The limiting component 6 is hinged on the mounting seat 9. The limiting component 6 forms a swing arm structure. The mounting seat 9 and the protective tube 8 are provided with through holes. The limiting teeth 7 pass through the through holes and cooperate with the first slider 5. The mounting seat 9 is provided with a support seat 10. The temperature sensing element 4 is supported between the support seat 10 and the limiting component 6. The temperature sensing element 4 resists the limiting component 6 and makes the limiting teeth 7 of the limiting component 6 clamp the first slider 5. The temperature sensing element 4 maintains structural integrity before the fire occurs. The limiting component 6 limits the first slider 5 at the movable end of the first elastic component 1 through the limiting teeth 7, so that the first elastic component 1 is in a compressed state. After the fire occurs, the temperature sensing element 4 breaks (temperature sensing glass ball) and melts (fusible alloy), thereby releasing the support for the limiting component 6. The limiting component 6 rotates clockwise around the hinge point, and the limiting teeth 7 of the limiting component 6 are separated from the first slider 5, and the first elastic component 1 is released, and finally the cable 3 is driven to be pulled back.

[0041] In some embodiments, see Figure 1 , Figure 2 , Figure 3 , further comprising a second slider 11, a cable fixing plate 13 and a second elastic component 12, the second slider 11 is arranged in the protective tube 8, the cable fixing plate 13 is connected to the second slider 11, the cable 3 is connected to the cable fixing plate 13, the second elastic component 12 is arranged between the first slider 5 and the second slider 11, and the elastic coefficient of the first elastic component 1 is greater than the elastic coefficient of the second elastic component 12. During normal use, the cable 3 can be freely extended and retracted, because the cable 3 can adjust the contraction and extension of the cable 3 through the compression or rebound of the second elastic component 12, so as to prevent the cable 3 from accumulating outside when the window is closed.

[0042] In some embodiments, see Figure 1A positioning and tightening block 14 is provided on the cable fixing plate 13. One end of the cable 3 is connected to the positioning and tightening block 14. The screw on the positioning and tightening block 14 can be adjusted to loosen the required length of the cable 3. The other end of the cable 3 is connected to the mounting bracket 15. A connecting groove is provided on the mounting bracket 15. A cylindrical terminal is provided at the end of the cable 3. The cable 3 is clamped in the connecting groove through the cylindrical terminal. A quick-install clamping nut 16 is provided on the mounting bracket 15. The mounting bracket 15 can be quickly installed with the window frame or window sash, and the position can be adjusted along the existing profile groove through the quick-install clamping nut 16.

[0043] In some embodiments, see Figure 1 , Figure 2 The far end of the protective tube 8 is provided with a limit screw 17 that cooperates with the second slider 11. The limit screw 17 can realize the connection with the window frame or window sash on one hand, and can also serve as the limit component 6 of the second slider 11 on the other hand to prevent the second slider 11 from overtravel. A limit sleeve 18 is provided between the first slider 5 and the second slider 11. The limit sleeve 18 is connected to the second slider 11 by a screw 19. The second elastic component 12 is sleeved on the outside of the limit sleeve 18. The limit sleeve 18 provides support and guidance for the second elastic component 12 on one hand, and can also protect the compression amount of the second elastic component 12 on the other hand.

[0044] An embodiment of the present invention provides an inward opening and tilting window, comprising a window closer in any of the above embodiments. The window closer uses a cable 3 to pull the window sash to close, meeting the opening requirements of the inward opening and tilting window in three different positions: locking, casement, and inward tilting. After installation, whether in the inward casement window state or the inward tilting window state, the cable between the window frame and the window sash expands and contracts due to the window opening, with the maximum elongation when the window is opened at the maximum angle and the minimum elongation when the window is closed. That is, the window can be controlled to close by contracting the cable.

[0045] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A window closer, characterized in that: include A first elastic component having a fixed end and a movable end; a limiting mechanism, which limits the movable end of the first elastic component so that the first elastic component is in a compressed state, and the limiting mechanism can release the first elastic component after detecting a fire, and the limiting mechanism includes a temperature sensing element; Guide components; A cable, passing around the guide component, the cable being capable of being pulled back along with the released movable end of the first elastic component; The movable end of the first elastic component is provided with a first slider, the limiting mechanism further includes a limiting component, the limiting component has a limiting tooth, the temperature sensing element abuts against the limiting component, and the limiting tooth of the limiting component clamps the first slider, the limiting tooth and the first slider are matched through an inclined surface, and the acting force between the limiting tooth and the first slider has a component force that separates the limiting tooth from the first slider; a protective tube, wherein the first elastic component and the first sliding block are both arranged in the protective tube; A second sliding block is disposed in the protective tube; A cable fixing plate connected to the second slider, and the cable is connected to the cable fixing plate; The second elastic component is disposed between the first sliding block and the second sliding block, and the elastic coefficient of the first elastic component is greater than the elastic coefficient of the second elastic component.

2. The window closer according to claim 1, characterized in that: The limiting mechanism also includes a mounting seat, the mounting seat is connected to the protective tube, the limiting component is hinged on the mounting seat, the mounting seat and the protective tube are provided with through holes, the limiting teeth pass through the through holes and cooperate with the first slider, the mounting seat is provided with a support seat, and the temperature sensing element is supported between the support seat and the limiting component.

3. The window closer according to claim 1, characterized in that: A positioning and tightening block is provided on the cable fixing plate, one end of the cable is connected to the positioning and tightening block, and the other end is connected to the mounting bracket. A connecting groove is provided on the mounting bracket, and a cylindrical terminal is provided at the end of the cable. The cable is clamped in the connecting groove through the cylindrical terminal, and a quick-release clamping nut is provided on the mounting bracket.

4. The window closer according to claim 1, characterized in that: A limiting screw cooperating with the second slider is disposed at the distal end of the protective tube, a limiting sleeve is disposed between the first slider and the second slider, and the second elastic component is sleeved on the outside of the limiting sleeve.

5. Inward opening and tilting window, characterized by: The invention comprises the window closer according to any one of claims 1 to 4.

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