Casement window falling protector

Abstract

The casement window falling protector comprises a first fixing element installed on a window frame, a second fixing element installed on a window sash and a steel wire rope, the two ends of the steel wire rope are connected with the first fixing element and the second fixing element respectively, the steel wire rope is sleeved with a spring, one end of the spring acts on the steel wire rope, and the other end of the spring acts on the steel wire rope. One end of the spring acts on the first fixing element, the other end of the spring acts on the first fixing element, a decoration box is arranged on the outer side of the first fixing element, and a containing cavity for the spring to move is formed in the decoration box; the first fixing element and the spring are limited in the containing cavity through the decoration box and are not exposed, the decoration box plays a role in dust prevention, corrosion prevention and covering for the first fixing element and the spring, the whole falling protector is more attractive, and in the window opening process, the spring is prevented from being inclined and scratching a window sash sectional material.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of door and window hardware, and particularly relates to a casement window anti-falling device. BACKGROUND

[0002] As the most common window type in daily life, the casement window is widely used because it does not occupy indoor space. However, the risk of falling of the casement window cannot be avoided due to the complex outdoor environment and long-time use. Therefore, as a safety device, the anti-falling device is an essential accessory on the casement window. The accessory generally does not bear a large external force in daily use. When the load-bearing accessory on the window sash has a problem and causes the window sash to fall, the anti-falling device can pull the window sash to prevent the window sash from falling. A general anti-falling device is composed of a fixed block fixed on a window frame, a fixed block fixed on a window sash, and a steel cable passing through the two fixed blocks. However, the anti-falling device of this structure has a problem that is easy to occur in daily use, that is, the steel cable is stuck in the window gap during window closing, causing the window sash to be unable to close or the window sash to be damaged. This is because the distance between the fixed blocks on the window sash and the window frame is greater when the casement window is fully opened than when the casement window is closed. Therefore, the length of the steel cable needs to be longer to ensure that the window sash can be fully opened. When the window sash is closed, the part that protrudes is in a free state, so it is easy to stretch into the window gap. In order to avoid this problem, a compression spring needs to be arranged at one end of the steel cable. The compression spring can pull the part of the steel cable that protrudes to be straight during the closing of the window sash, so as to avoid the disordered movement of the part. However, after using the compression spring, a new problem occurs, that is, the end of the compression spring is inclined due to the force not being along the central axis of the steel cable, which can easily scratch the profile. SUMMARY

[0003] The present application aims to provide a casement window anti-falling device to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A casement window anti-falling device, comprising a first fixed element installed on a window frame, a second fixed element installed on a window sash, and a steel wire rope, wherein the two ends of the steel wire rope are connected with the first fixed element and the second fixed element respectively, a spring is sleeved on the steel wire rope, one end of the spring acts on the steel wire rope, and the other end of the spring acts on the first fixed element, wherein the outer side of the first fixed element is provided with a decorative box, and the decorative box is provided with a containing cavity for the spring to move.

[0005] Further, a soft sheath is sleeved on the surface of the steel wire rope, and the soft sheath is made of PVC material.

[0006] Further, two ends of the steel wire rope are respectively provided with a first cable head and a second cable head, the first fixing element is provided with a first through hole, the second fixing element is provided with a second through hole, one end of the steel wire rope is connected with the first cable head through the first through hole, and the other end of the steel wire rope is connected with the second cable head through the second through hole.

[0007] Further, one end of the spring is in abutment with the first fixing element, and the other end of the spring is in abutment with the first cable head.

[0008] Further, the first fixing element and the second fixing element are both provided in an L shape, the first fixing element comprises a first mounting part arranged horizontally and a first connecting part arranged vertically, the second fixing element comprises a second mounting part arranged horizontally and a second connecting part arranged vertically, a plurality of mounting holes are arranged on the first connecting part and the second mounting part, the first through hole is arranged on the first connecting part, and the second through hole is arranged on the second connecting part.

[0009] Further, one end of the first mounting part away from the first connecting part is bent to form a clamping part, and a clamping groove corresponding to the clamping part is arranged in the interior of the decorative box, so that the decorative box is clamped with the first fixing element.

[0010] Further, the decorative box is fixed on the sash through fixing screws.

[0011] Compared with the prior art, the technical scheme has the following advantages: a decorative box is installed outside the first fixing element on the window frame, the decorative box limits the first fixing element and the spring in the accommodating cavity and does not expose them, the decorative box not only plays a dustproof, anticorrosive and concealing role for the first fixing element and the spring, but also makes the whole anti-falling device more beautiful, and prevents the spring from scratching the sash profile after being skewed during window opening. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0013] Figure 1 is a schematic diagram of the stereovision structure in the present application.

[0014] Figure 2 is an explosion schematic diagram in the present application Figure 3 is a cross-sectional view of the decorative box in the present application.

[0015] Figure 4It is the first installation process schematic diagram in the application.

[0016] Figure 5 It is the second installation process schematic diagram in the application.

[0017] Figure 6 It is the first working process schematic diagram in the application.

[0018] Figure 7 It is the second working process schematic diagram in the application.

[0019] Figure 8 It is the use state schematic diagram in the application.

[0020] Combining the annotations shown in the figure: first fixing element 10, first perforation 101, first mounting portion 11, first connecting portion 12, clamping portion 13, second fixing element 20, second perforation 201, second mounting portion 21, second connecting portion 22, steel wire rope 30, soft sheath 40, spring 50, decorative box 60, accommodating cavity 601, clamping groove 602, first thimble 70, second thimble 80. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. All other embodiments obtained by those of ordinary skill in the art without creative labor fall within the protection scope of the present application. The preferred embodiments of the present application will be described in more detail below with reference to the drawings. Although the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to make the present application more thorough and complete, and to convey the scope of the present application completely to those skilled in the art.

[0022] The terms used in the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items.

[0023] It should be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] In the description of the present application, it should be understood that the terms "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] It should be understood that although the terms "first", "second", "third" and the like can be used in the present application to describe various components, these terms should not be limited to these terms. These terms are only used to distinguish one type of component from another. For example, the first component can also be referred to as the second component without departing from the scope of the present application, and similarly, the second component can also be referred to as the first component. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0027] The technical solutions of the embodiments of the present application are described in detail below with reference to the drawings.

[0028] Reference Figures 1-7 A casement window anti-falling device, comprising a first fixing element 10 mounted on a window frame, a second fixing element 20 mounted on a window sash, and a steel wire rope 30, the two ends of the steel wire rope 30 are connected with the first fixing element 10 and the second fixing element 20 respectively, a spring 50 is sleeved on the steel wire rope 30, one end of the spring 50 acts on the steel wire rope 30, and the other end acts on the first fixing element 10; The outer side of the first fixing element 10 is provided with a decorative box 60, and the decorative box 60 is internally provided with a containing cavity 601 for the spring 50; in other words, a decorative box is mounted on the first fixing element 10 on the window frame, which not only plays a dustproof, anticorrosive and decorative masking role for the first fixing element 10 and the spring, but also prevents the spring from being scratched by rubbing against the window sash profile during the opening process.

[0029] The containing cavity 601 is designed as a guide groove matched with the spring 50, so that the spring 50 will not be deflected when being compressed or released in the containing cavity 601, thereby reducing the friction of the spring 50 during operation.

[0030] The surface of the steel wire rope 30 is sleeved with a soft sheath 40 made of PVC; during the opening process, the tension generated by the compression of the spring 50 and the opening angle cause the steel wire rope 30 to be tightly pressed against the rubber strip on the window sash, which will be damaged after the window sash is opened multiple times. In order to solve this problem, the steel wire rope 30 is a rubber-coated cable, which can avoid direct contact between the hard steel wire rope 30 and the soft rubber strip, and the soft sheath 40 contacts the rubber strip to protect the rubber strip. In addition, the soft sheath 40 can also play a role in corrosion protection and aesthetics for the steel wire rope 30.

[0031] Specifically, the two ends of the steel wire rope 30 are respectively provided with a first cable head 70 and a second cable head 80, The first fixing element 10 is provided with a first through hole 101, and the second fixing element 20 is provided with a second through hole 201. One end of the steel wire rope 30 is connected to the first cable head 70 through the first through hole 101, and the other end of the steel wire rope 30 is connected to the second cable head 80 through the second through hole 201. One end of the spring 50 abuts against the first fixing element 10, and the other end abuts against the first cable head 70. During assembly, the steel wire rope 30 covered with the soft sheath 40 is inserted into the first cable head 70 and then tightly punched by a punch, and then the spring 50 is inserted from the other end of the steel wire rope 30. Then the first fixing element 10, the second fixing element 20 and the second cable head 80 are sequentially inserted into the steel wire rope 30, and then the second cable head 80 is tightly punched by the punch to complete the assembly.

[0032] Specifically, the first fixing element 10 and the second fixing element 20 are both L-shaped, the first fixing element 10 includes a first mounting portion 11 arranged horizontally and a first connecting portion 12 arranged vertically, and the second fixing element 20 includes a second mounting portion 21 arranged horizontally and a second connecting portion 22 arranged vertically. A plurality of mounting holes are arranged on the first connecting portion 12 and the second mounting portion 21, the first through hole 101 is arranged on the first connecting portion 12, and the second through hole 201 is arranged on the second connecting portion 22. The first fixing element 10 or the second fixing element 20 is installed by screwing through the mounting holes.

[0033] In the embodiment, the first mounting part 11 is bent to form a clamping part 13 away from one end of the first connecting part 12, and the interior of the decorative box 60 is provided with a clamping groove 602 corresponding to the clamping part 13, so that the decorative box 60 is clamped with the first fixing element 10; the structure makes the decorative box 60 be positioned and mounted on the first fixing element 10; in addition, the decorative box 60 is fixed on the sash by a fixing screw, so that the decorative box 60 will not easily fall off, and the installation is fast and convenient.

[0034] The solutions of the present application have been described in detail above with reference to the drawings. In the above-described embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments. It should also be known by those skilled in the art that the actions and modules involved in the specification are not necessarily required by the present application. In addition, it can be understood that the steps in the method of the embodiments of the present application can be adjusted, combined and reduced in sequence according to actual needs, and the structure in the device of the embodiments of the present application can be combined, divided and reduced according to actual needs.

[0035] The above has described various embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical application or improvement of technology in the market, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A flat window anti-falling device, comprising a first fixed element (10) installed on a window frame, a second fixed element (20) installed on a window sash, and a steel wire rope (30), both ends of the steel wire rope (30) being connected with the first fixed element (10) and the second fixed element (20) respectively, a spring (50) being sleeved on the steel wire rope (30), one end of the spring (50) acting on the steel wire rope (30) and the other end acting on the first fixed element (10), characterized in that: The outer side of the first fixing element (10) is provided with a decorative box (60), and the decorative box (60) is internally provided with a containing cavity (601) for the spring (50) to move. ​ 2. A fall arrestor for a casement window according to claim 1, wherein: The surface of the steel wire rope (30) is sleeved with a soft sheath (40), and the soft sheath (40) is made of PVC material.

3. The falling protector for a casement window according to claim 1, characterized in that: The two ends of the steel wire rope (30) are respectively provided with a first rope head (70) and a second rope head (80), the first fixing element (10) is provided with a first through hole (101), the second fixing element (20) is provided with a second through hole (201), one end of the steel wire rope (30) is connected with the first rope head (70) through the first through hole (101), and the other end of the steel wire rope (30) is connected with the second rope head (80) through the second through hole (201).

4. A fall arrestor for a casement window according to claim 3 wherein: One end of the spring (50) abuts against the first fixing element (10), and the other end abuts against the first rope head (70).

5. A fall arrestor for a casement window according to claim 1, wherein: The first fixing element (10) and the second fixing element (20) are both arranged in an L shape, the first fixing element (10) comprises a horizontally arranged first mounting portion (11) and a vertically arranged first connecting portion (12), the second fixing element (20) comprises a horizontally arranged second mounting portion (21) and a vertically arranged second connecting portion (22), a plurality of mounting holes are arranged on the first connecting portion (12) and the second mounting portion (21), the first through hole (101) is arranged on the first connecting portion (12), and the second through hole (201) is arranged on the second connecting portion (22).

6. A fall arrestor for a casement window according to claim 5 wherein: The end of the first mounting portion (11) away from the first connecting portion (12) is bent to form a clamping portion (13), the inside of the decorative box (60) is provided with a clamping groove (602) corresponding to the clamping portion (13), so that the decorative box (60) is clamped with the first fixing element (10).

7. A fall arrestor for a casement window according to claim 6 wherein: The decorative box (60) is fixed on the window sash through fixing screws.

Images