Door and window anti-falling device

Abstract

The utility model discloses a door and window anti-falling device which comprises an installation frame capable of being fixedly installed on a wall and a fixed window frame arranged in the installation frame, and the installation frame is composed of two first sectional materials distributed in an up-down symmetrical mode and two second sectional materials distributed in a left-right symmetrical mode. Wherein mounting grooves are formed in the opposite inner sides of the two first profiles respectively, the upper end and the lower end of the fixed window frame are contained in the mounting grooves respectively, pressing plates are rotationally arranged on the two sides of the opening end of each mounting groove respectively, and the pressing plates can be turned over to be correspondingly pressed on the upper inner side and the lower inner side of the fixed window frame. The fixed window frame is provided with a connecting component capable of driving the pressing plate to keep the press-fit state. The connecting component drives the pressing plate to be relatively closed and enables the pressing plate to be kept in the press-fit state of abutting against the inner side of the fixed window frame, anti-disengaging installation and fixation of the fixed window frame are effectively achieved, and installation of the fixed window frame is facilitated.

Description

Technical Field

[0001] This utility model specifically relates to a door and window anti-fall-off device. Background Technology

[0002] In traditional door and window installation structures, the window frame is usually fixed to the wall frame using bolts or welding, which leads to complex installation procedures and difficulties in disassembly and maintenance. Especially in high-rise buildings, window frames are prone to loosening or even falling off due to wind pressure or long-term vibration. Utility Model Content

[0003] The present invention aims to at least partially solve one of the problems existing in the existing related technologies. To this end, the present invention proposes a door and window anti-fall-off device.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A door and window anti-fall-off device includes a mounting frame that can be fixedly installed on a wall, and a fixed window frame disposed within the mounting frame. The mounting frame is composed of two first profiles symmetrically distributed vertically and two second profiles symmetrically distributed horizontally. Each of the two first profiles has a mounting groove on its opposite inner side. The upper and lower ends of the fixed window frame are respectively accommodated in the mounting grooves. Pressure plates are rotatably disposed on both sides of the opening end of the mounting grooves. The pressure plates can be flipped and pressed against the upper and lower inner sides of the fixed window frame. The fixed window frame is provided with connecting members that drive the pressure plates to maintain a pressed state.

[0006] In one embodiment, the connecting member includes a sliding member and a driving member. The fixed window frame is provided with vertical sliding grooves on the front and rear sides respectively. There are at least four sliding members, and the sliding members are arranged in pairs. Each pair is movably disposed in the vertical sliding grooves. The opposite ends of the two sliding members in the same group are movably pressed against the pressure plate. The driving member includes a rotating shaft that is rotatably inserted into the fixed window frame and located between the two sliding members in the same group. The two ends of the rotating shaft are provided with circular driving blocks on the front and rear sides of the fixed window frame respectively. The circular driving blocks have symmetrically protruding first arc-shaped protrusions on both sides. The contour surfaces of the circular driving blocks and the first arc-shaped protrusions can press against one end of the sliding member in sequence as the rotating member rotates, so that the sliding member moves.

[0007] In one embodiment, a through hole is provided on one side of the first arc-shaped protrusion, and a screw hole is provided on the fixed window frame corresponding to the through hole. A connecting screw that can be threaded into the through hole is inserted into the through hole. When the connecting screw is engaged with the screw hole, one end of the sliding member remains in a state of pressing against the pressure plate.

[0008] In one embodiment, the upper and lower ends of the fixed window frame are respectively recessed with positioning grooves, and the mounting groove is provided with a positioning flange that can fit into the positioning groove.

[0009] In one embodiment, the first profile has symmetrical recessed grooves on both sides, and a second arc-shaped protrusion protrudes from the groove. A limiting cavity with one side opening is formed between the second arc-shaped protrusion and the groove. An arc-shaped hook with the same circular shape as the second arc-shaped protrusion extends from one side of the pressure plate. The arc-shaped hook is movably disposed in the limiting cavity and hooked onto the second arc-shaped protrusion. The arc-shaped hook allows the pressure plate to swing relative to the first profile.

[0010] In one embodiment, the relative angle of movement between the pressure plate and the first profile is less than 90°.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention utilizes a pressure plate located at the opening end of the mounting groove to facilitate the installation of the fixed window frame into the mounting groove of the mounting frame. A connecting component then drives the pressure plate to close relative to each other, maintaining a pressed state against the inner side of the fixed window frame. This effectively prevents the fixed window frame from detaching and facilitates its installation. Furthermore, when the pressure plate is in a loose state without external force, the pressure plate located on the upper part of the mounting frame and on the outdoor side provides limiting support, effectively preventing the risk of the fixed window frame falling outdoors due to detachment. Attached Figure Description

[0013] Figure 1 This is a front view of a door and window anti-fall-off device according to the present invention;

[0014] Figure 2 In this utility model Figure 1 A schematic diagram of the AA cross-section;

[0015] Figure 3 In this utility model Figure 2 Enlarged view of point C;

[0016] Figure 4 In this utility model Figure 1 Enlarged view of point B;

[0017] Figure 5 In this utility model Figure 1 BB cross-sectional diagram;

[0018] Figure 6 In this utility model Figure 5 Enlarged diagram of point D. Detailed Implementation

[0019] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0020] like Figures 1 to 6 The illustrated door and window anti-fall device includes a mounting frame 1 that can be fixedly installed on a wall, and a fixed window frame 2 disposed within the mounting frame 1. The mounting frame 1 is composed of two first profiles 3 symmetrically distributed vertically and two second profiles 4 symmetrically distributed horizontally. Mounting grooves 5 are respectively provided on the inner sides of the two first profiles 3. The upper and lower ends of the fixed window frame 2 are respectively accommodated within the mounting grooves 5. Pressure plates 6 are rotatably disposed on both sides of the opening end of the mounting grooves 5. The pressure plates 6 can be flipped and pressed against the upper and lower inner sides of the fixed window frame 2. The fixed window frame 2 is provided with connecting members 7 that can drive the pressure plates 6 to maintain a pressed state.

[0021] Specifically, the pressure plate located at the opening end of the mounting groove allows installers to easily embed the fixed window frame into the mounting groove of the mounting frame. Then, the connecting components drive the pressure plate to close relatively, keeping it pressed against the inside of the fixed window frame. This effectively prevents the fixed window frame from falling off and facilitates its installation. Furthermore, when the pressure plate is in a loose state without external force, the pressure plate located on the upper part of the mounting frame and on the outdoor side can provide limiting support, effectively preventing the fixed window frame from falling to the outside due to loosening.

[0022] Further, the connecting member 7 includes a sliding member 71 and a driving member 72. The fixed window frame 2 is provided with vertical sliding grooves 73 on the front and rear sides respectively. There are at least four sliding members 71, and the sliding members 71 are arranged in pairs and each pair is movably arranged in the vertical sliding grooves 73 respectively. The opposite ends of the two sliding members 71 in the same group are movably pressed against the pressure plate 6. The driving member 72 includes a rotating shaft 74 that is rotatably inserted into the fixed window frame 2 and located between the two sliding members 71 in the same group. The two ends of the rotating shaft 74 are provided with circular driving blocks 75 on the front and rear sides of the fixed window frame 2 respectively. The circular driving blocks 75 have symmetrically protruding first arc-shaped protrusions 76 on both sides. The contour surfaces of the circular driving blocks 75 and the first arc-shaped protrusions 76 can press against one end of the sliding member 71 in turn as the rotating member rotates, so that the sliding member 71 moves.

[0023] Specifically, the circular drive blocks at both ends of the pivot rotate synchronously, that is, the circular drive blocks located on the front and rear sides (outdoor and indoor) of the fixed window frame rotate synchronously, and then the first arc-shaped protrusions on both sides rotate accordingly. The rotation of the first arc-shaped protrusions pushes the sliding parts, forming a progressive clamping force. As a result, the two sliding parts located in the same vertical groove move away from each other in opposite directions until the ends of the sliding parts press against the pressure plate, causing the pressure plate to press tightly against the inner side of the fixed window frame, thus achieving the driving and pressing fixation of the pressure plate.

[0024] Furthermore, a through hole 77 extends through one side of the first arc-shaped protrusion 76. A screw hole 78 is provided on the fixed window frame 2 corresponding to the through hole 77. A connecting screw capable of threaded engagement with the screw hole is inserted into the through hole 77. When the connecting screw engages with the screw hole, one end of the sliding member 71 remains pressed against the pressure plate 6. Specifically, when the connecting screw is screwed into the screw hole through the through hole, a mechanical interlock is formed, thereby fixing the circular drive block. This keeps the first arc-shaped protrusion of the circular drive block pressing against the sliding member, causing the sliding member to remain in a tightly pressed, fitted state against the pressure plate.

[0025] Furthermore, the fixed window frame 2 has recessed positioning grooves 21 at both its upper and lower ends, and the mounting groove 5 is provided with positioning flanges 22 that can engage with the positioning grooves 21. Thus, the pre-positioning installation of the fixed window frame is achieved through the positioning grooves and positioning flanges.

[0026] Furthermore, the first profile 3 has symmetrical recessed grooves 23 on both sides, and a second arc-shaped protrusion 24 protrudes from the groove 23. A limiting cavity with one side opening is formed between the second arc-shaped protrusion 24 and the groove 23. An arc-shaped hook 25 with the same circular shape as the second arc-shaped protrusion 24 extends from one side of the pressure plate 6. The arc-shaped hook 25 is movably disposed in the limiting cavity and hooked onto the second arc-shaped protrusion 24. The arc-shaped hook 25 allows the pressure plate 6 to swing relative to the first profile 3, thereby realizing the swing opening and closing of the pressure plate relative to the mounting groove.

[0027] Furthermore, the relative angle of movement between the pressure plate 6 and the first profile 3 is less than 90°. This limits the opening and closing angle of the pressure plate.

[0028] Based on the accompanying drawings and the foregoing display and description of the basic principles, main features, and advantages of this utility model, those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A door and window anti-fall-off device, comprising a mounting frame (1) that can be fixedly installed on a wall, and a fixed window frame (2) disposed within the mounting frame (1), characterized in that: The mounting frame (1) is composed of two first profiles (3) symmetrically distributed vertically and two second profiles (4) symmetrically distributed horizontally; wherein, mounting grooves (5) are respectively provided on the inner sides of the two first profiles (3), the upper and lower ends of the fixed window frame (2) are respectively accommodated in the mounting grooves (5), and pressure plates (6) are rotatably provided on both sides of the opening end of the mounting grooves (5), the pressure plates (6) can be flipped and pressed onto the upper and lower inner sides of the fixed window frame (2), and the fixed window frame (2) is provided with connecting members (7) that can drive the pressure plates (6) to maintain the pressed state.

2. The door and window anti-fall-off device according to claim 1, characterized in that: The connecting member (7) includes a sliding member (71) and a driving member (72). The fixed window frame (2) is provided with vertical sliding grooves (73) on both the front and rear sides. There are at least four sliding members (71), and the sliding members (71) are arranged in pairs. Each pair is movably arranged in the vertical sliding groove (73). The opposite ends of the two sliding members (71) in the same group are movably pressed against the pressure plate (6). The driving member (72) includes a rotating component that is inserted into the fixed window frame (2). A pivot (74) is located on the window frame (2) between two sliding members (71) in the same group. The pivot (74) has two circular drive blocks (75) located on the front and rear sides of the fixed window frame (2). The circular drive blocks (75) have symmetrically protruding first arc-shaped protrusions (76) on both sides. The contour surfaces of the circular drive blocks (75) and the first arc-shaped protrusions (76) can press against one end of the sliding member (71) in sequence as the window frame (2) rotates, so that the sliding member (71) moves.

3. The door and window anti-fall-off device according to claim 2, characterized in that: A through hole (77) is provided on one side of the first arc-shaped protrusion (76). A screw hole (78) is provided on the fixed window frame (2) corresponding to the through hole (77). A connecting screw that can be threaded into the through hole (77) is inserted into the through hole (77). When the connecting screw is engaged with the screw hole, one end of the sliding member (71) remains in a state of pressing against the pressure plate (6).

4. The door and window anti-fall-off device according to claim 1, characterized in that: The fixed window frame (2) has a positioning groove (21) recessed at both the upper and lower ends, and the mounting groove (5) is provided with a positioning flange (22) that can fit into the positioning groove (21).

5. The door and window anti-fall-off device according to claim 1, characterized in that: The first profile (3) has symmetrical recessed grooves (23) on both sides. The grooves (23) have a second arc-shaped protrusion (24) protruding inside. A limiting cavity with an opening on one side is formed between the second arc-shaped protrusion (24) and the groove (23). The pressure plate (6) has an arc-shaped hook (25) with the same circle as the second arc-shaped protrusion (24) extending from one side. The arc-shaped hook (25) is movably disposed in the limiting cavity and hooked on the second arc-shaped protrusion (24). The pressure plate (6) is made to swing relative to the first profile (3) through the arc-shaped hook (25).

6. A door and window anti-fall-off device according to claim 5, characterized in that: The relative angle of movement between the pressure plate (6) and the first profile (3) is less than 90°.

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