A welding device for processing aluminum alloy doors and windows

Abstract

The present invention discloses a welding device for processing aluminum alloy doors and windows, and relates to the technical field of aluminum alloy door and window welding. The present invention includes a welding rod, one side of which is provided with a protective mechanism and a visual mechanism; a grinding gun can grind impurities and oxide layers on the surface of the weld, making subsequent welding more secure; at the same time, the protective mechanism can block high-temperature metal dripping or splashing welding slag generated during welding, preventing the welding slag from splashing on the surface of the door and window, causing oxidation or discoloration of the aluminum alloy surface, effectively protecting the door and window after welding repair, and preventing the welding slag generated by welding from splashing onto the face and body of the staff, causing harm to the staff; the visual mechanism can be used to observe the welding process in real time during welding to ensure welding accuracy; at the same time, the visual mirror can be used to weld the cracks above the bottom of the aluminum alloy door and window, eliminating the need for the staff to carry a support frame and climb up to weld.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy door and window welding equipment, and in particular to a welding device for processing aluminum alloy doors and windows. Background Art

[0002] Aluminum alloy doors and windows, or simply aluminum doors and windows, refer to doors and windows made from extruded aluminum alloy profiles for frames, stiles, and sashes. Aluminum door profiles and glass styles vary depending on the region. The north is characterized by thick aluminum and a more stable design. The most representative style is the lattice style, and the most distinctive of the lattice is the Tang grid. The south is characterized by diverse and lively aluminum shapes. The most representative style is the flower glass style, including lattice, ice sculpture, shallow carving, and crystal shell. Guangzhou Xinbiao is a leading manufacturer. The quality of aluminum alloy doors and windows can be roughly judged by the selection of raw aluminum profiles, the surface treatment and internal processing quality of the aluminum, and the price of the aluminum alloy doors and windows. High-quality aluminum alloy doors and windows are finely crafted, carefully installed, have good sealing performance, and open and close easily. Inferior aluminum alloy doors and windows, blindly select aluminum profile series and specifications, are crudely processed, saw cutting is used instead of milling, and they are not installed according to requirements. They have poor sealing performance and are difficult to open and close. Not only do they leak air and rain and cause glass to crack, but when encountering strong winds and external forces, the sliding parts or the glass can easily be scraped or knocked off, causing damage to property and injury to people.

[0003] The patent application number is CN202311474624.2, which discloses a device and method for welding aluminum alloy doors and windows with a clamping function. The device includes a frame, which is internally provided with a positioning device. The positioning device is composed of a plurality of clamping members. The plurality of clamping members adjust the position according to the size of the aluminum alloy door and window to be fixed, and fix and clamp the frame of the aluminum alloy door and window. The frame drives the positioning device to flip. The four clamping members of the present invention clamp the four frames of the aluminum alloy door and window respectively, fix the aluminum alloy door and window in the position of the flip frame, and then drive the aluminum alloy door and window to flip. When the worker finishes welding one side of the aluminum alloy door and window, the flipping member drives the aluminum alloy door and window to flip, so that the other side of the aluminum alloy door and window flips to the upper side. This makes it easier for the worker to weld both sides of the aluminum alloy door and window, and avoids the aluminum alloy door and window from falling apart when the worker flips.

[0004] This patent and the prior art have the following technical problems in actual use:

[0005] After the installation of aluminum alloy doors and windows, if they become loose or broken during the installation process or due to improper installation or long-term use, welding repair is required. Most aluminum alloy doors and windows need to be removed, or the staff need to climb to a high place through the support frame to perform welding repair. If they are removed, the required process will be more complicated, or when using climbing tools for welding, the operator's line of sight may be limited at some high-angle positions, resulting in inaccurate welding. Summary of the Invention

[0006] The purpose of the present invention is to solve the above problems and provide a welding device for processing aluminum alloy doors and windows.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] A welding device for processing aluminum alloy doors and windows, comprising a welding rod, one side of which is provided with a protective mechanism and a visual mechanism;

[0009] The protection mechanism includes a connecting seat provided on one side of the welding rod, a connecting piece fixedly installed on the surface of the connecting seat, and at least four groups of connecting pieces are arranged in an annular manner. Protective rods are rotatably installed inside the connecting pieces, and protective plates are fixedly installed between the protective rods. A welding mechanism is provided on one side of the connecting seat;

[0010] The visual mechanism includes a visual plate provided on the surface of the protective plate, a visual mirror is rotatably mounted on the top of the upper protective plate, an adjustment rod is rotatably mounted on one side of the visual mirror, an adjustment frame is rotatably mounted on the surface of the welding rod, and the adjustment rod is rotatably connected to the adjustment frame;

[0011] The welding mechanism includes a support tube arranged on one side of the connecting seat, a welding gun and a grinding gun are arranged on one side of the support tube, and an extension mechanism is arranged on one side of the support tube, and the extension mechanism is used to connect with the protective rod.

[0012] Furthermore, a support base is fixedly installed on one side of the support tube close to the welding gun, and a connecting frame is fixedly installed on one side of the support base. The connecting frames are symmetrically arranged in two groups, and a first motor and a second motor are fixedly installed on one side of the two groups of connecting frames. The output ends of the first motor and the second motor are fixedly connected to the welding gun and the grinding gun respectively, and the support base is fixedly connected to the welding gun and the grinding gun. A docking rod is slidably installed inside the support tube, and a rotating motor is fixedly installed inside the support tube, and the output end of the rotating motor is fixedly connected to the support base.

[0013] Furthermore, an adjustment ring is fixedly installed on the surface of the support tube, and the extension mechanism includes a linkage part fixedly installed on the surface of the adjustment ring, a first extension tube is rotatably installed inside the linkage part, a second extension tube is provided on one side of the first extension tube, an extension rod is fixedly installed on one end of the second extension tube close to the first extension tube, the extension rod passes through and extends to the inside of the first extension tube, and an extension spring is fixedly installed on the surface of the first extension tube.

[0014] Furthermore, a suction rod is provided on one side of the protective rod, one end of the suction rod passes through and extends into the interior of the protective rod, and a suction cup is fixedly installed on one end of the suction rod.

[0015] Furthermore, a connecting spring is fixedly installed inside the protective rod, and one end of the connecting spring is fixedly connected to the adsorption rod.

[0016] Furthermore, a support block is fixedly mounted on the surface of the welding rod, a matching rod is rotatably mounted on a side of the support block close to the adjusting rod, and one end of the matching rod is rotatably connected to the adjusting rod.

[0017] Furthermore, a connecting rope is fixedly installed on one end of the adjustment frame, and the connecting rope passes through the support block and is fixedly connected to one end of the support tube.

[0018] Furthermore, a fixed spring is fixedly installed inside the support tube, and the fixed spring is fixedly connected to the docking rod. A docking seat is rotatably installed at one end of the welding rod. A friction layer is provided at the connection between the welding rod and the docking seat, and has a certain resistance. The docking seat is fixedly connected to one end of the docking rod.

[0019] Furthermore, an electric telescopic rod is provided on one side of the welding rod, one end of the electric telescopic rod is fixedly connected to the welding rod, and an operating panel is fixedly installed on one end of the electric telescopic rod, and the operating panel is electrically connected to the first motor, the second motor, and the rotating motor.

[0020] Furthermore, the material of the protective plate is set to be a flexible material with a certain toughness.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The present invention can grind away impurities and oxide layers on the surface of the weld by means of the provided grinding gun, so that subsequent welding is more solid. At the same time, the provided protective mechanism can block the dripping or splashing welding slag generated by high-temperature metal during welding, and can prevent the welding slag from splashing on the surface of doors and windows, causing oxidation or discoloration of the aluminum alloy surface. It can effectively protect the doors and windows after welding repair, and at the same time prevent the welding slag generated by welding from splashing onto the face and body of the staff, causing harm to the staff. The provided visual mechanism can be used to observe the welding process in real time during welding to ensure the welding accuracy. At the same time, the provided visual mirror can be used to weld the cracks above the bottom of the aluminum alloy doors and windows, without the need for the staff to carry the support frame and climb up for welding.

[0023] 2. In the present invention, since the locations where cracks appear in the aluminum alloy door and window frames are different, when welding some cracks on the sides or bottom, the staff can control the rotating motor inside the support tube to drive the support base to rotate, and then drive the welding gun and the grinding gun to rotate through the connecting frame, so as to weld and repair the cracks on the sides or bottom. When the first motor and the second motor are started at the same time, the output ends of the first motor and the second motor can drive the welding gun and the grinding gun to rotate, thereby adjusting their angles to ensure that all angles can be welded, thereby improving welding efficiency.

[0024] 3. The present invention can adsorb the protective rod on the surface of doors and windows through the provided suction cups and adsorption rods, so that it can be fixed on the doors and windows for welding. When the workers hold the welding gun for a long time, the arm and hand muscles will be fatigued. At the same time, it can be fixed by the suction cup, which can ensure the stability during welding and reduce the decline in welding accuracy due to hand shaking or fatigue of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of the device of the present invention;

[0026] Figure 2 It is a side schematic diagram of the device of the present invention;

[0027] Figure 3 It is a schematic diagram of the interior of the device of the present invention;

[0028] Figure 4 This invention Figure 3 Schematic diagram at point A in the middle;

[0029] Figure 5 It is a schematic cross-sectional view of the support tube of the present invention;

[0030] Figure 6 is a schematic diagram of a welding rod of the present invention;

[0031] Figure 7 is a schematic diagram of the protection rod of the present invention;

[0032] Figure 8 This invention Figure 7 Schematic diagram at point B in the middle.

[0033] 1. Welding rod; 2. Protective mechanism; 201. Connecting seat; 202. Connecting piece; 203. Protective rod; 204. Protective plate; 3. Visual mechanism; 301. Visual plate; 302. Visual mirror; 303. Adjusting rod; 304. Adjusting frame; 4. Welding mechanism; 401. Support tube; 402. Welding gun; 403. Grinding gun; 5. Extension mechanism; 51. Linkage; 52. First extension tube; 53. Second extension tube; 54. Extension rod; 55. Extension spring; 6. Support seat; 7. Connecting frame; 8. First motor; 9. Second motor; 10. Docking rod; 11. Rotating motor; 12. Adjusting ring; 13. Adsorption rod; 14. Suction cup; 15. Connecting spring; 16. Support block; 17. Matching rod; 18. Connecting rope; 19. Fixing spring; 20. Docking seat; 21. Electric telescopic rod; 22. Operating panel. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0035] A welding device for processing aluminum alloy doors and windows according to a preferred embodiment of the present invention will be described in detail below.

[0036] Example 1, as Figures 1-8 As shown, it includes a welding rod 1, and a protection mechanism 2 and a visual mechanism 3 are provided on one side of the welding rod 1;

[0037] The protection mechanism 2 includes a connection base 201 disposed on one side of the welding rod 1. Connectors 202 are fixedly mounted on the surface of the connection base 201. The connectors 202 are arranged in at least four groups in an annular manner. Protective rods 203 are rotatably mounted inside the connectors 202. Protective plates 204 are fixedly mounted between the protective rods 203. A welding mechanism 4 is disposed on one side of the connection base 201.

[0038] The visual mechanism 3 includes a visual panel 301 provided on the surface of the protective plate 204, a visual mirror 302 rotatably mounted on the top of the upper protective plate 204, an adjustment rod 303 rotatably mounted on one side of the visual mirror 302, and an adjustment frame 304 rotatably mounted on the surface of the welding rod 1, the adjustment rod 303 being rotatably connected to the adjustment frame 304;

[0039] The welding mechanism 4 includes a support tube 401 provided on one side of the connecting base 201, a welding gun 402 and a grinding gun 403 are provided on one side of the support tube 401, and an extension mechanism 5 is provided on one side of the support tube 401 for connecting to the protective rod 203;

[0040] After the installation of aluminum alloy doors and windows, the interfaces and corner joints will become loose and broken due to long-term use. When welding and repairing aluminum alloy doors and windows installed at higher places, the staff will hold the welding rod 1 under the aluminum alloy doors and windows, first lift the welding rod 1, and then after the protective rod 203 contacts the door and window frame or wall, it will rotate inside the connector 202 on the surface of the connecting seat 201, and at the same time drive the protective plate 204 to unfold. Because the protective plate 204 has a certain toughness, after it is unfolded, the welding gun 402 and the grinding gun 403 inside it can be brought close to the door and window frame where the cracks appear, and then the grinding gun 403 can be used to grind the cracks in the door and window frame, and then the welding gun 402 can be used to grind the cracks in the door and window frame. When welding, the worker can observe and weld the aluminum alloy door and window through the visual plate 301 provided on the surface of the protective plate 204 at the same time. At the same time, the splashing welding slag will fall on the inside of the protective plate 204 due to the provision of the protective plate 204, so as to prevent the splashing welding slag from falling on the worker and affecting him. When the crack of the aluminum alloy door and window is at the upper part, the worker can manually rotate the adjusting frame 304. When the adjusting frame 304 is rotated, the adjusting frame 304 pushes the adjusting rod 303 to drive the visual mirror 302 to prop up. The worker can weld the crack at the upper part at the bottom of the aluminum alloy door and window, without the need for the worker to carry the supporting frame and climb up for welding.

[0041] The provided grinding gun 403 can grind away impurities and oxide layers on the surface of the weld, making subsequent welding more secure. At the same time, the provided protective mechanism 2 can block the dripping or splashing welding slag generated by high-temperature metal during welding, and can prevent the welding slag from splashing on the surface of doors and windows, causing oxidation or discoloration of the aluminum alloy surface. It can effectively protect the doors and windows after welding repair, and at the same time prevent the welding slag generated by welding from splashing onto the face and body of the staff, causing harm to the staff. The provided visual mechanism 3 can be used to observe the welding process in real time during welding to ensure the welding accuracy. At the same time, the provided visual mirror 302 can be used to weld the cracks above the bottom of the aluminum alloy doors and windows, without the need for the staff to carry the support frame and climb up to weld.

[0042] Example 2, as Figures 1-6As shown, it includes a support cylinder 401, on one side of which is fixedly mounted a support base 6 near the welding gun 402, a connecting frame 7 is fixedly mounted on one side of the support base 6, and two groups of connecting frames 7 are symmetrically arranged. A first motor 8 and a second motor 9 are fixedly mounted on one side of the two groups of connecting frames 7. The output ends of the first motor 8 and the second motor 9 are fixedly connected to the welding gun 402 and the grinding gun 403 respectively, the support base 6 is fixedly connected to the welding gun 402 and the grinding gun 403, a docking rod 10 is slidably mounted inside the support cylinder 401, a rotating motor 11 is fixedly mounted inside the support cylinder 401, and the output end of the rotating motor 11 is fixedly connected to the support base 6;

[0043] Since the locations of cracks in aluminum alloy door and window frames are different, when welding some cracks on the sides or bottom, the staff can control the rotating motor 11 inside the support tube 401 to drive the support base 6 to rotate, and then drive the welding gun 402 and the grinding gun 403 to rotate through the connecting frame 7, so that the cracks on the sides or bottom can be welded and repaired. When the first motor 8 and the second motor 9 are started at the same time, the output ends of the first motor 8 and the second motor 9 can drive the welding gun 402 and the grinding gun 403 to rotate, thereby adjusting their angles to ensure that all angles can be welded, thereby improving welding efficiency.

[0044] Example 3, as Figures 1-8 As shown, the support cylinder 401 includes an adjustment ring 12 fixedly mounted on its surface, and the extension mechanism 5 includes a linkage member 51 fixedly mounted on the surface of the adjustment ring 12. A first extension cylinder 52 is rotatably mounted inside the linkage member 51. A second extension cylinder 53 is provided on one side of the first extension cylinder 52. An extension rod 54 is fixedly mounted on one end of the second extension cylinder 53 close to the first extension cylinder 52. The extension rod 54 passes through and extends into the interior of the first extension cylinder 52. An extension spring 55 is fixedly mounted on the surface of the first extension cylinder 52.

[0045] When the staff brings the protective rod 203 into contact with the aluminum alloy doors and windows, the protective rod 203 pulls the second extension tube 53 to slide inside the first extension tube 52 when it is unfolded, and at the same time drives the extension rod 54 to squeeze the extension spring 55 inside the first extension tube 52, so that the protective rod 203 can drive the protective plate 204 to unfold to a certain angle, so that the protective plate 204 can be completely fitted on the surface of the aluminum alloy door and window frame, thereby playing a certain protective role. The large unfolding angle of the protective plate 204 can make the welding mechanism 4 closer to the crack, thereby improving the welding effect.

[0046] Example 4, as Figure 1-Figure 7As shown, a suction rod 13 is provided on one side of the protective rod 203, one end of the suction rod 13 passes through and extends into the interior of the protective rod 203, a suction cup 14 is fixedly installed on one end of the suction rod 13, and a connecting spring 15 is fixedly installed inside the protective rod 203, one end of the connecting spring 15 is fixedly connected to the suction rod 13;

[0047] When attaching the protective rod 203 to the aluminum alloy door and window, the worker first sprays some water on the suction cup 14. Then, when attaching the protective rod 203 to the door and window, the suction cup 14 comes into contact with the door and window, thereby being adsorbed on the surface. Then, the protective rod 203 can be adsorbed on the surface through the adsorption rod 13, and then welding is performed.

[0048] The protective rod 203 can be adsorbed on the surface of doors and windows by the provided suction cup 14 and adsorption rod 13, so that it is fixed on the doors and windows for welding. When the worker holds the welding gun for a long time, the arm and hand muscles are fatigued. At the same time, it can be fixed by the suction cup 14, which can ensure stability during welding and reduce the decline in welding accuracy due to hand shaking or fatigue of the worker.

[0049] Example 5, as Figures 1-6 As shown, a support block 16 is fixedly mounted on the surface of the welding rod 1, a matching rod 17 is rotatably mounted on the side of the support block 16 close to the adjustment rod 303, one end of the matching rod 17 is rotatably connected to the adjustment rod 303, and a connecting rope 18 is fixedly mounted on one end of the adjustment frame 304, and the connecting rope 18 passes through the support block 16 and is fixedly connected to one end of the support tube 401;

[0050] When the staff rotates the adjustment frame 304, the upper adjustment rod 303 can push the visual mirror 302 up, and at the same time the connecting rope 18 below the adjustment frame 304 will pull the support tube 401 to one side. When the support tube 401 moves, the protective rod 203 will be unfolded through the extension mechanism 5.

[0051] Example 6: Figures 1-8 As shown, a fixing spring 19 is fixedly installed inside the support cylinder 401, and the fixing spring 19 is fixedly connected to the docking rod 10. A docking seat 20 is rotatably installed at one end of the welding rod 1. A friction layer is provided at the connection between the welding rod 1 and the docking seat 20, and has a certain resistance. The docking seat 20 is fixedly connected to one end of the docking rod 10. An electric telescopic rod 21 is provided on one side of the welding rod 1. One end of the electric telescopic rod 21 is fixedly connected to the welding rod 1. An operating panel 22 is fixedly installed on one end of the electric telescopic rod 21. The operating panel 22 is electrically connected to the first motor 8, the second motor 9, and the rotating motor 11. The material of the protective plate 204 is set to a flexible material with a certain toughness.

[0052] The docking seat 20 and the welding rod 1 are provided to facilitate the staff to adjust their positions. At the same time, due to the provision of a friction layer, the welding rod 1 is not easily rotated. At the same time, the staff can push the welding rod 1 to move through the electric telescopic rod 21 to weld doors and windows at higher places.

[0053] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding device for processing aluminum alloy doors and windows, comprising a welding rod (1), characterized in that: A protective mechanism (2) and a visual mechanism (3) are provided on one side of the welding rod (1); The protection mechanism (2) comprises a connecting seat (201) arranged on one side of the welding rod (1); a connecting piece (202) is fixedly mounted on the surface of the connecting seat (201); the connecting piece (202) is provided in a ring-shaped manner in at least four groups; a protection rod (203) is rotatably mounted inside the connecting piece (202); a protection plate (204) is fixedly mounted between the protection rods (203); and a welding mechanism (4) is provided on one side of the connecting seat (201); The visual mechanism (3) comprises a visual panel (301) provided on the surface of the protective panel (204); a visual mirror (302) is rotatably mounted on the top of the upper protective panel (204); an adjusting rod (303) is rotatably mounted on one side of the visual mirror (302); an adjusting frame (304) is rotatably mounted on the surface of the welding rod (1); and the adjusting rod (303) is rotatably connected to the adjusting frame (304); The welding mechanism (4) comprises a support tube (401) provided on one side of the connecting seat (201), a welding gun (402) and a grinding gun (403) being provided on one side of the support tube (401), and an extension mechanism (5) being provided on one side of the support tube (401), and the extension mechanism (5) being used to connect to the protective rod (203); A support base (6) is fixedly installed on one side of the support tube (401) close to the welding gun (402), a connecting frame (7) is fixedly installed on one side of the support base (6), and two groups of connecting frames (7) are symmetrically provided. A first motor (8) and a second motor (9) are fixedly installed on one side of the two groups of connecting frames (7), and the output ends of the first motor (8) and the second motor (9) are fixedly connected to the welding gun (402) and the grinding gun (403) respectively. The support base (6) is fixedly connected to the welding gun (402) and the grinding gun (403). A docking rod (10) is slidably installed inside the support tube (401), and a rotating motor (11) is fixedly installed inside the support tube (401), and the output end of the rotating motor (11) is fixedly connected to the support base (6); An adjusting ring (12) is fixedly mounted on the surface of the supporting cylinder (401), and the extending mechanism (5) comprises a linkage member (51) fixedly mounted on the surface of the adjusting ring (12), a first extending cylinder (52) is rotatably mounted inside the linkage member (51), a second extending cylinder (53) is provided on one side of the first extending cylinder (52), an extending rod (54) is fixedly mounted on one end of the second extending cylinder (53) close to the first extending cylinder (52), the extending rod (54) passes through and extends into the interior of the first extending cylinder (52), and an extending spring (55) is fixedly mounted on the surface of the first extending cylinder (52).

2. A welding device for processing aluminum alloy doors and windows according to claim 1, characterized in that: A suction rod (13) is provided on one side of the protection rod (203), one end of the suction rod (13) passes through and extends into the interior of the protection rod (203), and a suction cup (14) is fixedly mounted on one end of the suction rod (13).

3. A welding device for processing aluminum alloy doors and windows according to claim 2, characterized in that: A connecting spring (15) is fixedly installed inside the protection rod (203), and one end of the connecting spring (15) is fixedly connected to the adsorption rod (13).

4. The welding device for processing aluminum alloy doors and windows according to claim 1, characterized in that: A support block (16) is fixedly mounted on the surface of the welding rod (1), a matching rod (17) is rotatably mounted on a side of the support block (16) close to the adjusting rod (303), and one end of the matching rod (17) is rotatably connected to the adjusting rod (303).

5. The welding device for processing aluminum alloy doors and windows according to claim 1, characterized in that: A connecting rope (18) is fixedly mounted on one end of the adjustment frame (304), and the connecting rope (18) passes through the support block (16) and is fixedly connected to one end of the support tube (401).

6. The welding device for processing aluminum alloy doors and windows according to claim 1, characterized in that: A fixing spring (19) is fixedly installed inside the support cylinder (401), and the fixing spring (19) is fixedly connected to the docking rod (10). A docking seat (20) is rotatably installed on one end of the welding rod (1). A friction layer is provided at the connection between the welding rod (1) and the docking seat (20), and has a certain resistance. The docking seat (20) is fixedly connected to one end of the docking rod (10).

7. The welding device for processing aluminum alloy doors and windows according to claim 1, characterized in that: An electric telescopic rod (21) is provided on one side of the welding rod (1), one end of the electric telescopic rod (21) is fixedly connected to the welding rod (1), and an operating panel (22) is fixedly installed on one end of the electric telescopic rod (21), and the operating panel (22) is electrically connected to the first motor (8), the second motor (9), and the rotating motor (11).

8. The welding device for processing aluminum alloy doors and windows according to claim 1, characterized in that: The material of the protective plate (204) is set to be a flexible material with a certain toughness.

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