Split type aluminum alloy screen window door

Abstract

The utility model provides a split type aluminum alloy screen window door which comprises a door frame made of aluminum alloy and two gauze curtains arranged in the door frame, the gauze curtains are symmetrically arranged, and the left side and the right side of the door frame are respectively provided with a hollow door column for containing the gauze curtains. The upper edge and the lower edge of each yarn curtain are each provided with a flexible edge strip capable of being curled, a traction rod is arranged on the vertical edge of the side, away from the hollow door column, of each yarn curtain, and the upper end and the lower end of each traction rod are connected with the corresponding flexible edge strip. The upper and lower sides of the door frame are provided with slide rails for sliding the yarn curtain; and a locking device for fixing the position of the draw bar is arranged in the middle of the upper and lower edges of the door frame. The two gauze curtains can be opened and closed respectively, the two gauze curtains can be opened when a large space is needed, and only one gauze curtain can be opened when a small passing space is needed; and the gauze curtain is accommodated in the hollow door post instead of being stacked on two sides of the door frame, so that the space in the door frame is not occupied, and dust is not easy to accumulate.

Description

Technical Field

[0001] The utility model relates to the field of aluminum alloy doors and windows, in particular to a double-leaf aluminum alloy screen door. Background Art

[0002] Glass windows are a key feature of modern buildings, increasing daylight and providing ventilation. However, current glass windows exist in two states: one is tightly closed, airtight; the other is fully open, allowing insects and flies to enter, impacting the environment. To address this, screens need to be installed on the indoor side of the glass windows. However, traditional screens are typically integrated, with the screen mesh attached directly to the window frame, which is then mounted on the glass. This type of screen is relatively outdated and is being phased out. The newly emerging roller screens are widely used due to their ease of operation.

[0003] The basic structure of a rolling screen is to install slotted slide rails on the left and right sides of the window opening, and install a scroll with a coil spring at the top of the window opening to clamp the upper side of the screen. The screen is clamped on both sides of the slide rail by a rollable hard strip. The bottom edge of the screen is fixed on the handle, and the two ends of the crossbar are located in the groove of the slide rail. The screen is then opened or closed by pulling the handle. Summary of the Invention

[0004] The utility model provides a double-leaf aluminum alloy screen door, which can open and close two screen curtains respectively without occupying space in a door frame.

[0005] The technical solution of the utility model is achieved as follows: a double-leaf aluminum alloy screen door, comprising a door frame made of aluminum alloy, and a screen curtain arranged in the door frame, wherein the screen curtains are symmetrically arranged, and a hollow door post for storing the screen curtains is provided on each of the left and right sides of the door frame; a rollable flexible edge strip is provided on the upper and lower sides of each screen curtain, and a traction rod is provided on the vertical edge away from the hollow door post, and the upper and lower ends of the traction rod are connected to the flexible edge strip; slide rails for sliding the screen curtains are provided on the upper and lower sides of the door frame, and the two ends of the traction rod and the flexible edge strip slide in the slide rails; a locking device for fixing the position of the traction rod is provided in the middle position of the upper and lower edges of the door frame.

[0006] Preferably, the slide rail comprises an upper slide rail and a lower slide rail, the lower slide rail is fixedly mounted in the door frame, and the upper slide rail is embedded in the door frame and its relative height to the door frame is adjustable.

[0007] Preferably, several tension springs are provided between the upper slide rail and the door frame for tensioning. The cross section of the door frame is a U-shaped structure. The upper slide rail is installed in the inner wall of the door frame, and the top of the upper slide rail is connected to the top wall of the door frame through evenly distributed tension springs.

[0008] Preferably, several locking screws for adjusting the tension are provided between the upper slide rail and the door frame; the cross-section of the door frame is a U-shaped structure, the outer wall of the upper slide rail matches the inner wall of the door frame, and several vertical strip holes are evenly opened on the side wall of the door frame, and a screw hole is opened at the corresponding position of the upper slide rail, and each strip hole is provided with a locking screw for locking the position of the upper slide rail.

[0009] Preferably, several sliders are evenly provided on the upper and lower ends of the traction rod and the flexible side strips. The slider is a T-shaped structure, and an auxiliary sliding roller is provided on each side; the slide rail is a traditional "door"-shaped structure that slides in cooperation with the T-shaped slider. The slider includes an upper slider and a lower slider. The upper slider is arranged in the upper slide rail, and the lower slider is arranged in the lower slide rail.

[0010] Preferably, the upper slide rail is an inverted traditional Chinese "door" shaped structure, the upper slider is an upright T-shaped slider, and the lower part of both sides of the upper slider is provided with a roller that rolls and rubs with the upper slide rail; the lower slide rail is an upright traditional Chinese "door" shaped structure, the lower slider is an inverted T-shaped slider, and the upper part of both sides of the lower slider is provided with a roller that rolls and rubs with the lower slide rail.

[0011] Preferably, a rotating shaft for rolling up the gauze curtain is provided in the hollow door post, a coil spring for automatically rolling up the rotating shaft is provided on the rotating shaft, and the end of the gauze curtain away from the traction rod is fixedly connected to the rotating shaft.

[0012] Preferably, the locking device includes a lock catch provided in the middle of the upper edge of the door frame, and a magnetic element provided in the middle of the lower edge.

[0013] Preferably, the upper end of the traction rod is provided with a hook that matches the lock buckle, and the lower edge is provided with a magnet that is attracted to the magnetic element accordingly.

[0014] Preferably, a lever with a spring is provided on the lock catch, and the position of the lever corresponds to the position of the hook on the traction rod.

[0015] Compared with the prior art, the advantages of the present invention are that the two gauze curtains can be opened and closed separately. When a larger space is needed, both gauze curtains can be opened. When only a smaller passage space is needed, only one of the gauze curtains can be opened. The gauze curtains are stored in the hollow doorpost instead of being stacked on both sides of the door frame. They do not occupy the space in the door frame and are not prone to dust accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the gauze curtain component of the present invention;

[0018] Figure 3It is a side view of a tension spring embodiment of the present utility model;

[0019] Figure 4 It is a side view of the locking screw of the present invention.

[0020] In the figure: 1. Door frame; 2. Hollow doorpost; 3. Mesh curtain; 4. Flexible edge strip; 5. Pull rod; 6. Upper slide rail; 7. Lower slide rail; 8. Upper slider; 9. Lower slider; 10. Roller; 11. Strip hole; 12. Locking screw; 13. Tension spring; 14. Lock; 15. Push rod; 16. Hook; 17. Magnetic part; 18. Magnet. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] Example: See Figure 1 and Figure 2A double-leaf aluminum alloy screen door comprises a door frame 1 made of aluminum alloy, and a screen curtain 3 arranged in the door frame 1, wherein the screen curtain 3 is symmetrically arranged. A hollow door post 2 for storing the screen curtain 3 is provided on each side of the door frame 1; a rollable flexible edge strip 4 is provided on the upper and lower sides of each screen curtain 3, and a traction rod 5 is provided on the vertical edge away from the side of the hollow door post 2, and the upper and lower ends of the traction rod 5 are connected to the flexible edge strip 4; slide rails for sliding the screen curtain 3 are provided on the upper and lower sides of the door frame 1, and the two ends of the traction rod 5 and the flexible edge strip 4 slide in the slide rails; a locking device for fixing the position of the traction rod 5 is provided in the middle position of the upper and lower edges of the door frame 1.

[0025] The two gauze curtains 3 can be opened and closed separately. When a larger space is needed, both gauze curtains 3 can be opened. When a smaller passage space is needed, only one of the gauze curtains 3 can be opened. The gauze curtains 3 are stored in the hollow doorpost 2 instead of being stacked on both sides of the door frame 1. They do not occupy the space in the door frame 1 and are not prone to dust accumulation.

[0026] The slide rails include an upper slide rail 6 and a lower slide rail 7, wherein the lower slide rail 7 is fixedly mounted in the door frame 1, and the upper slide rail 6 is embedded in the door frame 1 and the relative height to the door frame 1 is adjustable. The height and tension of the gauze curtain 3 can be adjusted to avoid looseness and is easy to use.

[0027] like Figure 3 As shown, several tension springs 13 are provided between the upper rail 6 and the door frame 1 for tensioning. The door frame 1 has a U-shaped cross-section, and the upper rail 6 is mounted within the inner wall of the door frame 1. The top of the upper rail 6 is connected to the top wall of the door frame 1 via evenly distributed tension springs 13. The tension of the tension springs 13 can lift the upper rail 6 upward, providing continuous tension to the flexible side strips 4 and the gauze curtain 3, preventing the gauze curtain 3 from becoming loose. The advantage of the tension springs 13 is that they do not require manual adjustment and can maintain tension on their own.

[0028] like Figure 4 As shown, several locking screws 12 for adjusting the tension are provided between the upper slide rail 6 and the door frame 1; the cross section of the door frame 1 is a U-shaped structure, the outer wall of the upper slide rail 6 matches the inner wall of the door frame 1, and several vertical strip holes 11 are evenly opened on the side wall of the door frame 1, and a screw hole is opened at the corresponding position of the upper slide rail 6, and each strip hole 11 is provided with a locking screw 12 for locking the position of the upper slide rail 6. After the gauze curtain 3 has been used for a period of time, it may produce a certain amount of tensile deformation, or the thermal expansion and contraction of the aluminum alloy due to temperature reasons may cause the gauze curtain 3 to be too tight or droopy, and the tension of the gauze curtain 3 can be adjusted according to the tension of the gauze curtain 3. Loosen the locking screw 12 and move it up and down with the upper slide rail 6. The screw can be adjusted arbitrarily within the upper and lower ranges of the strip hole 11 to make the upper and lower tension of the entire surface of the gauze curtain 3 reach a suitable degree. Then tighten the locking screw 12 and continue to use it.

[0029] Several sliders are evenly provided on the upper and lower ends of the traction rod 5 and the flexible side strip 4. The slider is a T-shaped structure, and an auxiliary sliding roller 10 is provided on each side; the slide rail is a traditional Chinese "door" shaped structure, which slides with the T-shaped slider. The slider includes an upper slider 8 and a lower slider 9. The upper slider 8 is arranged in the upper slide rail 6, and the lower slider 9 is arranged in the lower slide rail 7.

[0030] The upper slide rail 6 is an inverted traditional Chinese "door" shaped structure, the upper slider 8 is an upright T-shaped slider, and a roller 10 is provided on the lower part of each side of the upper slider 8 for rolling friction with the upper slide rail 6; the lower slide rail 7 is an upright traditional Chinese "door" shaped structure, the lower slider 9 is an inverted T-shaped slider, and a roller 10 is provided on the upper part of each side of the lower slider 9 for rolling friction with the lower slide rail 7.

[0031] The hollow doorpost 2 is provided with a rotating shaft for rolling up the gauze curtain 3. The rotating shaft is provided with a coil spring for automatically winding up the rotating shaft. The end of the gauze curtain 3 away from the traction rod 5 is fixedly connected to the rotating shaft. The rotating shaft is coaxially provided at the center of the hollow doorpost 2. Under the action of the coil spring, the rotating shaft provides a continuous contraction force to the gauze curtain 3. When the gauze curtain 3 is no longer needed, it can be conveniently stored in the hollow doorpost 2.

[0032] The locking device includes a lock catch 14 provided in the middle of the upper edge of the door frame 1, and a magnetic part 17 provided in the middle of the lower edge. The upper end of the traction rod 5 is provided with a hook 16 that matches the lock catch 14, and the lower edge is provided with a magnet 18 that is attracted to the magnetic part 17. The lock catch 14 is provided with a lever 15 with a spring, and the lever 15 corresponds to the position of the hook 16 on the traction rod 5. When the gauze curtain 3 is needed, the traction rod 5 is manually pulled to drive the flexible edge strip 4 and the gauze curtain 3 to move horizontally to the middle of the door frame 1, and the upper hook 16 is hung on the lever 15. The lower magnet 18 is attracted to the magnetic part 17 on the door frame 1 to assist in fixing it, so that the gauze curtain 3 will not rebound, and it plays a shielding role. When the gauze curtain 3 is no longer needed, it is only necessary to manually pull down the lever 15. The hook 16 and magnet 18 automatically fall off under the action of the coil spring, and the gauze curtain 3 is automatically recovered into the hollow door column 2 to complete the storage.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double-leaf aluminum alloy screen door, comprising a door frame made of aluminum alloy and a screen curtain arranged in the door frame, characterized in that: The gauze curtains are symmetrically arranged in two, and a hollow door post for storing the gauze curtains is provided on each side of the door frame; a rollable flexible edge strip is provided on the upper and lower sides of each gauze curtain, and a traction rod is provided on the vertical edge away from the hollow door post, and the upper and lower ends of the traction rod are connected to the flexible edge strips; the upper and lower sides of the door frame are provided with sliding rails for the gauze curtains to slide, and the two ends of the traction rod and the flexible edge strips slide in the sliding rails; a locking device for fixing the position of the traction rod is provided in the middle position of the upper and lower edges of the door frame.

2. The double-leaf aluminum alloy screen door according to claim 1, characterized in that: The slide rail comprises an upper slide rail and a lower slide rail, wherein the lower slide rail is fixedly mounted in the door frame, and the upper slide rail is embedded in the door frame and the relative height thereof to the door frame is adjustable.

3. The double-leaf aluminum alloy screen door according to claim 2, characterized in that: Several tension springs for tensioning are provided between the upper slide rail and the door frame. The cross section of the door frame is a U-shaped structure. The upper slide rail is installed in the inner wall of the door frame, and the top of the upper slide rail is connected to the top wall of the door frame through evenly distributed tension springs.

4. The double-leaf aluminum alloy screen door according to claim 3, characterized in that: Several locking screws for adjusting the tension are provided between the upper slide rail and the door frame; the cross-section of the door frame is a U-shaped structure, the outer wall of the upper slide rail matches the inner wall of the door frame, and several vertical strip holes are evenly opened on the side wall of the door frame, and a screw hole is opened at the corresponding position of the upper slide rail, and each strip hole is provided with a locking screw for locking the position of the upper slide rail.

5. The double-leaf aluminum alloy screen door according to claim 3 or 4, characterized in that: Several sliders are evenly provided on the upper and lower ends of the traction rod and the flexible side strips. The slider is a T-shaped structure, and an auxiliary sliding roller is provided on each side; the slide rail is a traditional "door" shaped structure, which slides with the T-shaped slider. The slider includes an upper slider and a lower slider. The upper slider is arranged in the upper slide rail, and the lower slider is arranged in the lower slide rail.

6. The double-leaf aluminum alloy screen door according to claim 5, characterized in that: The upper slide rail is an inverted traditional Chinese "door" shaped structure, the upper slider is an upright T-shaped slider, and a roller is provided on the lower part of each side of the upper slider for rolling and rubbing with the upper slide rail; the lower slide rail is an upright traditional Chinese "door" shaped structure, the lower slider is an inverted T-shaped slider, and a roller is provided on the upper part of each side of the lower slider for rolling and rubbing with the lower slide rail.

7. The double-leaf aluminum alloy screen door according to claim 1, characterized in that: A rotating shaft for rolling up the gauze curtain is provided in the hollow door post, a coil spring for automatically rolling up the rotating shaft is provided on the rotating shaft, and one end of the gauze curtain away from the traction rod is fixedly connected to the rotating shaft.

8. The double-leaf aluminum alloy screen door according to claim 1, characterized in that: The locking device includes a lock buckle arranged in the middle of the upper edge of the door frame, and a magnetic attraction member arranged in the middle of the lower edge.

9. The double-leaf aluminum alloy screen door according to claim 8, characterized in that: The upper end of the traction rod is provided with a hook that matches the lock buckle, and the lower edge is provided with a magnet that is attracted correspondingly to the magnetic attraction part.

10. The double-leaf aluminum alloy screen door according to claim 9, characterized in that: The lock buckle is provided with a shifting rod with a spring, and the position of the shifting rod corresponds to the position of the hook on the traction rod.

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