A kind of assembled aluminum alloy door and window and production equipment thereof

Abstract

The present invention relates to an assembled aluminum alloy door and window and production equipment thereof, comprising: an aluminum alloy frame and door and window glass, the door and window glass is fixedly installed on the inner side of the aluminum alloy frame, the aluminum alloy frame is surrounded by two sets of fixed frames and two assembly frames, the front and rear ends of the two sets of assembly frames are fixedly connected with plug-in blocks, the left and right ends of the two sets of fixed frames are provided with assembly slots at positions corresponding to the plug-in blocks, the plug-in blocks are fixedly connected with the assembly slots by fixing screws, the left and right ends of the fixed frames and the top of the door and window glass are fixedly installed with positioning boxes, and the front and rear ends of the two sets of assembly frames and the bottom of the door and window glass are installed with tight mechanisms. The beneficial effects of the present invention are: the assembly convenience of aluminum alloy doors and windows can be improved through design, and the production efficiency of aluminum alloy doors and windows can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy doors and windows, and in particular to an assembled aluminum alloy door and window and production equipment thereof. Background Art

[0002] Aluminum alloy doors and windows refer to doors and windows made of aluminum alloy extruded profiles as frames, stiles and sashes, referred to as aluminum doors and windows. Aluminum alloy doors and windows include doors and windows with aluminum alloy as the base material of the load-bearing rods and doors and windows composited with wood and plastic, referred to as aluminum-wood composite doors and windows and aluminum-plastic composite doors and windows. At present, aluminum alloy doors and windows have been widely used in various buildings due to their beautiful appearance, good sealing, light weight and easy installation, and have become the mainstream of building doors and windows.

[0003] In the prior art, during the assembly process of aluminum alloy doors and windows, especially when assembling the aluminum alloy frame, the outer side of the aluminum alloy frame cannot be fixed and assisted in assembly. The fixing process requires the assistance of multiple people to carry out the fixing and assembly. The assembly process requires a lot of manpower and time, which makes it inconvenient to assemble and fix the doors and windows, especially the aluminum alloy doors and windows with large size and weight. The assembly process is laborious and inconvenient, thereby greatly reducing the production efficiency of the aluminum alloy doors and windows. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention designs an assembled aluminum alloy door and window and production equipment thereof, which can solve the problem that, under the prior art, the aluminum alloy door and window cannot be fixed and auxiliary assembled during the assembly process, which greatly reduces the production efficiency of the aluminum alloy door and window.

[0005] The present invention provides the following technical solution: an assembled aluminum alloy door and window, comprising: an aluminum alloy frame and door and window glass, the door and window glass is fixedly installed on the inner side of the aluminum alloy frame, the aluminum alloy frame is surrounded by two sets of fixed frames and two assembly frames, the front and rear ends of the two sets of assembly frames are fixedly connected with plug-in blocks, the left and right ends of the two sets of fixed frames are provided with assembly slots at positions corresponding to the plug-in blocks, the plug-in blocks are fixedly connected with the assembly slots by fixing screws, the left and right ends of the fixed frames and the top of the door and window glass are fixedly installed with positioning boxes, and the front and rear ends of the two sets of assembly frames and the bottom of the door and window glass are installed with tight mechanisms;

[0006] An abutting edge is fixedly connected on one side opposite to the two sets of assembly frames and located at the bottom of the door and window glass, and a rubber sealing strip is fixedly connected on the inner side of the fixed frame and the assembly frame and located around the door and window glass;

[0007] The interior of the positioning box is slidably connected with a movable block, one end of the movable block located inside the positioning box is fixedly connected with a first spring, the top of the movable block is fixedly connected with an operating handle, one end of the movable block located outside the positioning box is fixedly connected with an arc-shaped spring sheet, and the bottom of the arc-shaped spring sheet and the surface of the door and window glass are fixedly connected with a first rubber pad;

[0008] The operating handle is slidably connected to the positioning box through a sliding groove, and the outer side of the operating handle is provided with multiple sets of anti-slip grooves;

[0009] The tight mechanism includes a movable groove opened inside the front and rear ends of the assembly frame, a movable plate is slidably connected inside the movable groove, one end of the movable plate located inside the movable groove is fixedly connected to a second spring, and one end of the movable plate located outside the movable groove and located at the bottom of the door and window glass is fixedly connected to a second rubber pad;

[0010] When assembling the door and window glass, the operating handle slides the movable block to retract it into the interior of the positioning box to make space for the door and window glass to be installed, and the door and window glass is placed on the inner side of the aluminum alloy frame so that the bottom of the door and window glass contacts the second rubber pad and the movable plate is lowered, and the operating handle is released to pop out the movable block under the action of the first spring until the movable block is located at one end outside the positioning box to position and fix the door and window glass, and then the door and window glass is installed and fixed on the inner side of the aluminum alloy frame, and the first rubber pad is fitted to the door and window glass under the elastic force of the arc-shaped spring piece, and after the door and window glass is installed and fixed on the inner side of the aluminum alloy frame, the movable plate is pushed up under the action of the second spring.

[0011] The beneficial effects of the present invention are:

[0012] 1. In the present invention, through the matching design of the aluminum alloy frame and the door and window glass, when assembling the aluminum alloy door and window, first align the assembly slots at the left and right ends of the two sets of fixing frames with the plug-in blocks, then insert the plug-in blocks at the front and rear ends of the two assembly frames into the interior of the assembly slots, and then fix the plug-in blocks by fixing screws to complete the assembly of the aluminum alloy frame, and then operate the positioning box to make room for the installation of the door and window glass, and then install the door and window glass into the inner side of the aluminum alloy frame and press it down, so that the door and window glass is placed in the back of the door and window glass, and the rubber sealing strip is used to seal and protect the door and window glass around, and then operate the positioning box to position and fix the door and window glass, and cooperate with the reverse thrust of the tight mechanism to further improve the tightness of the door and window glass after assembly, and improve the convenience of assembly of aluminum alloy doors and windows through the conveniently assembled aluminum alloy frame and door and window glass, and further improve the production efficiency of aluminum alloy doors and windows;

[0013] 2. In the present invention, through the coordinated design of the moving seat, the mounting seat, the driving chassis, the connecting plate, the positioning frame and the positioning plate, when assembling the aluminum alloy doors and windows, the two groups of fixed frames are first fixed on the inner sides of the positioning frames respectively, and then the plug-in blocks on the two assembly frames are inserted into the assembly slots of one group of the fixed frames, and then the two groups of moving seats are moved synchronously, thereby driving the two groups of positioning frames to move synchronously, and the other group of fixed frames is moved close to the other end of the assembly frame until the plug-in block at the other end of the assembly frame is inserted into the assembly slot of the other fixed frame, thereby completing the assembly of the aluminum alloy frame, and finally, since the aluminum alloy frame is positioned and fixed, it is only necessary to install the door and window glass to complete the assembly of the aluminum alloy doors and windows, thereby further improving the assembly convenience and production efficiency of the aluminum alloy doors and windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the assembled aluminum alloy door and window production equipment of the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of the drive chassis of the present invention;

[0017] Figure 4 This is a schematic diagram of the positioning frame structure of the present invention;

[0018] Figure 5 This is a schematic diagram of the positioning plate structure of the present invention;

[0019] Figure 6 This is a schematic diagram of the structure of the assembled aluminum alloy door and window of the present invention;

[0020] Figure 7 This is a schematic diagram of the aluminum alloy frame structure of the present invention;

[0021] Figure 8 This is a schematic diagram of the positioning box structure of the present invention;

[0022] Fig. 9 This is a schematic diagram of the internal structure of the positioning box of the present invention;

[0023] Fig.10 This is a schematic diagram of the assembly frame structure of the present invention;

[0024] Fig.11 It is a schematic diagram of the structure of the compact mechanism of the present invention;

[0025] In the figure: 1, aluminum alloy frame; 2, door and window glass; 3, fixed frame; 4, assembly frame; 401, abutment edge; 402, rubber sealing strip; 5, plug-in block; 6, assembly slot; 7, fixing screw; 8, positioning box; 801, movable block; 802, second spring; 803, operating handle; 804, arc spring; 805, first rubber pad; 806, slide groove; 807, anti-slip pattern; 9, tight mechanism; 901, movable groove; 902, movable plate; 903, second spring; 904, second rubber pad; 10, adjustment base; 1001, first bidirectional threaded rod; 1002, first connecting rod Connecting sleeve; 1003, first crank handle; 1004, guide rail; 1005, sliding sleeve; 11, moving seat; 12, mounting seat; 13, supporting column; 14, driving chassis; 1401, motor; 1402, rotating shaft; 1403, induction disk; 1404, mounting bracket; 1405, photoelectric switch; 1406, induction slot; 15, connecting plate; 16, positioning bracket; 1601, second bidirectional threaded rod; 1602, second crank handle; 1603, second connecting sleeve; 1604, roller; 17, positioning plate; 1701, positioning support block; 1702, positioning slot; 1703, positioning rubber wheel. DETAILED DESCRIPTION

[0026] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] Example:

[0028] like Figures 1 to 11 As shown, an assembled aluminum alloy door and window comprises: an aluminum alloy frame 1 and a door and window glass 2, the door and window glass 2 is fixedly installed on the inner side of the aluminum alloy frame 1, the aluminum alloy frame 1 is surrounded by two sets of fixed frames 3 and two assembly frames 4, the front and rear ends of the two sets of assembly frames 4 are fixedly connected with plug-in blocks 5, the left and right ends of the two sets of fixed frames 3 are provided with assembly slots 6 at positions corresponding to the plug-in blocks 5, the plug-in blocks 5 are fixedly connected to the assembly slots 6 by fixing screws 7, the left and right ends of the fixed frames 3 and located at the top of the door and window glass 2 are fixedly installed with positioning boxes 8, and the front and rear ends of the two sets of assembly frames 4 and located at the bottom of the door and window glass 2 are installed with tight mechanisms 9.

[0029] In this embodiment, an abutment edge 401 is fixedly connected to the opposite side of the two groups of assembly frames 4 and located at the bottom of the door and window glass 2, and a rubber sealing strip 402 is fixedly connected to the inner side of the fixed frame 3 and the assembly frame 4 and located on all sides of the door and window glass 2. When assembling the aluminum alloy door and window, first align the assembly slots 6 at the left and right ends of the two groups of fixed frames 3 with the plug-in blocks 5, then insert the plug-in blocks 5 at the front and rear ends of the two assembly frames 4 into the interior of the assembly slots 6, and then fix the plug-in blocks 5 by fixing screws 7 to complete the assembly of the aluminum alloy frame 1, and then operate the positioning box 8 to make room for the installation of the door and window glass 2, and then install the door and window glass 2 into the inner side of the aluminum alloy frame 1 and press it down, so that after the door and window glass 2 is placed in, the abutment edge 401 abuts against the back of the door and window glass 2, and the door and window glass 2 is sealed and protected on all sides by the rubber sealing strip 402.

[0030] In this embodiment, the interior of the positioning box 8 is slidably connected with a movable block 801, one end of the movable block 801 located inside the positioning box 8 is fixedly connected with a first spring 802, the top of the movable block 801 is fixedly connected with an operating handle 803, the end of the movable block 801 located outside the positioning box 8 is fixedly connected with an arc-shaped spring piece 804, the bottom of the arc-shaped spring piece 804 and the surface of the door and window glass 2 is fixedly connected with a first rubber pad 805, when the door and window glass 2 is assembled, the movable block 801 is slid by the operating handle 803 to be retracted into the interior of the positioning box 8, so that Make room for the door and window glass 2 to be installed, then put the door and window glass 2 into the inner side of the aluminum alloy frame 1, release the operating handle 803 and eject the movable block 801 under the action of the first spring 802, until the movable block 801 is located at one end outside the positioning box 8 to position and fix the door and window glass 2, and then install and fix the door and window glass 2 on the inner side of the aluminum alloy frame 1, and at the same time, under the elastic force of the arc-shaped spring piece 804, the first rubber pad 805 fits the door and window glass 2, which protects the surface of the door and window glass 2 and further improves the tightness of the door and window glass 2 after assembly.

[0031] In this embodiment, the operating handle 803 is slidably connected to the positioning box 8 via a slide groove 806, and multiple sets of anti-slip grooves 807 are provided on the outer side of the operating handle 803. When the operating handle 803 is operated, it slides inside the slide groove 806, and the anti-slip grooves 807 on its outer side can prevent it from slipping during operation.

[0032] In this embodiment, the tight mechanism 9 includes a movable groove 901 opened inside the front and rear ends of the assembly frame 4, and a movable plate 902 is slidably connected inside the movable groove 901. One end of the movable plate 902 located inside the movable groove 901 is fixedly connected to a second spring 903, and one end of the movable plate 902 located outside the movable groove 901 and located at the bottom of the door and window glass 2 is fixedly connected to a second rubber pad 904. After the door and window glass 2 is placed inside the aluminum alloy frame 1 and pressed down, the bottom of the door and window glass 2 contacts the second rubber pad 904 and the movable plate 902 is lowered. After the door and window glass 2 is installed and fixed on the inner side of the aluminum alloy frame 1, the movable plate 902 is pushed up under the action of the second spring 903, so that the reverse thrust of the movable plate 902 is used to further improve the tightness of the door and window glass 2 after assembly. At the same time, the surface of the door and window glass 2 is protected by the second rubber pad 904, and then the aluminum alloy frame 1 and the door and window glass 2 that are easy to assemble are used to improve the assembly convenience of the aluminum alloy doors and windows, and further improve the production efficiency of the aluminum alloy doors and windows.

[0033] The present invention also provides a prefabricated aluminum alloy door and window production equipment, including prefabricated aluminum alloy door and window, and also includes:

[0034] An adjusting base 10, the front and rear ends of the top of the adjusting base 10 are slidably connected with a moving base 11, the tops of the two groups of moving bases 11 are fixedly installed with a mounting base 12, the tops of the two groups of mounting bases 12 are fixedly connected with a supporting column 13, the tops of the two groups of supporting columns 13 are fixedly installed with a driving chassis 14, the opposite sides of the two groups of driving chassis 14 are rotatably connected with a connecting plate 15, the opposite sides of the two groups of connecting plates 15 are fixedly installed with a positioning frame 16, the left and right ends of the opposite sides of the two groups of positioning frames 16 are slidably connected with a positioning plate 17, and the aluminum alloy frame 1 is clamped and fixed to the inner side of multiple groups of positioning plates 17.

[0035] In this embodiment, a first bidirectional threaded rod 1001 is rotatably connected to the middle of the top of the adjustment base 10, and the bottoms of the two groups of movable seats 11 are threadedly connected to the two ends of the first bidirectional threaded rod 1001 through a first connecting sleeve 1002. A first crank 1003 is fixedly installed at the front end of the first bidirectional threaded rod 1001. Guide rails 1004 are fixedly installed at the left and right ends of the top of the adjustment base 10, and the left and right ends of the bottoms of the two groups of movable seats 11 are slidably connected to the guide rails 1004 through sliding sleeves 1005. When assembling the aluminum alloy doors and windows, first fix the two groups of fixed frames 3 on the inner sides of the positioning frame 16 respectively, and then insert the plug-in blocks 5 on the two assembly frames 4 into the assembly slots 6 of one group of fixed frames 3. Then operate the first crank handle 1003 to rotate the first bidirectional threaded rod 1001, and synchronously drive the two groups of moving seats 11 to move under the connection of the first connecting sleeve 1002, and drive the moving seats 11 to move stably under the sliding cooperation of the sliding sleeve 1005 and the guide rail 1004, thereby driving the two groups of positioning frames 16 to move synchronously, and move the other group of fixed frames 3 close to the other end of the assembly frame 4 until the plug-in block 5 at the other end of the assembly frame 4 is inserted into the assembly slot 6 of the other fixed frame 3, thereby completing the assembly of the aluminum alloy frame 1. Finally, since the aluminum alloy frame 1 is positioned and fixed, it is only necessary to install the door and window glass 2 to complete the assembly of the aluminum alloy doors and windows, thereby further improving the assembly convenience and production efficiency of the aluminum alloy doors and windows.

[0036] In this embodiment, the motors 1401 are fixedly installed inside the two sets of driving chassis 14, the driving ends of the two sets of motors 1401 are fixedly installed with rotating shafts 1402, and the rotating shafts 1402 are rotatably connected to the driving chassis 14, the rotating shafts 1402 are fixedly connected to the connecting plate 15, and the outer side of the rotating shafts 1402 is fixedly installed with a sensing disk 1403, and the inside of the driving chassis 14 and below the motor 1401 is fixedly installed with a mounting frame 1404, and the mounting frame 1404 is fixedly installed with a photoelectric switch 1405, and the outer side of the sensing disk 1403 is provided with four sets of sensing slots 1406 at equal intervals, and the sensing disk 1403 is fixedly installed with a photoelectric switch 1405. During assembly, the motor 1401 can be started to drive the rotating shaft 1402 to rotate, so that the mounting frame 1404 drives the positioning frame 16 to rotate. At the same time, when the rotating shaft 1402 rotates, the sensing disk 1403 will be driven to rotate together. When the sensing slots 1406 at different positions on the sensing disk 1403 reach the position of the photoelectric switch 1405, the driving of the motor 1401 is stopped by induction. Different sensing slots 1406 correspond to four directions respectively, and then the rotation direction of the aluminum alloy frame 1 is accurately adjusted. Its direction is adjusted according to assembly requirements, which further improves the assembly convenience of aluminum alloy doors and windows.

[0037] In this embodiment, the interior of the positioning frame 16 is rotatably connected to a second bidirectional threaded rod 1601, a second crank 1602 is fixedly installed at the left end of the second bidirectional threaded rod 1601, the positioning plate 17 is threadedly connected to both ends of the second bidirectional threaded rod 1601 through a second connecting sleeve 1603, and the upper and lower sides of the second connecting sleeve 1603 are rotatably connected to rollers 1604, and a rolling groove is provided at a position corresponding to the roller 1604 inside the positioning frame 16, and when the fixing frame 3 is fixed to the inner side of the positioning frame 16, the second crank 1602 is operated. 602 drives the second bidirectional threaded rod 1601 to rotate, and drives the two groups of positioning plates 17 to move synchronously under the connection of the second connecting sleeve 1603, until the two groups of positioning plates 17 respectively position the left and right ends of the fixed frame 3, thereby conveniently and quickly positioning and fixing the fixed frame 3 on the inner side of the positioning frame 16, further improving the convenience of assembly of aluminum alloy doors and windows, and at the same time, when the second connecting sleeve 1603 moves, the roller 1604 rolls on the inner side of the rolling groove, thereby stably driving the positioning plate 17 to move the aluminum alloy frame 1 for positioning.

[0038] In this embodiment, a positioning support block 1701 is fixedly installed on the outer side of the positioning plate 17 and located on the outer side of the aluminum alloy frame 1. A positioning groove 1702 is opened on the top of the positioning support block 1701. Positioning rubber wheels 1703 are rotatably connected to the two ends of the positioning support block 1701 and located on the outer side of the aluminum alloy frame 1. After the fixed frame 3 is positioned and fixed by using the positioning plate 17, the corner of the fixed frame 3 is located in the positioning groove 1702 in the positioning support block 1701. The fixed frame 3 is supported by the positioning support block 1701 and the positioning rubber wheel 1703 is attached to the outer side of the fixed frame 3 for positioning. This not only facilitates and quickly positions and fixes the fixed frame 3, but also avoids damage to the outer side of the fixed frame 3.

[0039] Implementation scheme: When assembling the aluminum alloy doors and windows, first fix the two sets of fixed frames 3 on the inner sides of the positioning frames 16 respectively, then insert the plug-in blocks 5 on the two assembly frames 4 into the assembly slots 6 of one set of fixed frames 3, and then operate the first crank 1003 to rotate the first bidirectional threaded rod 1001, and synchronously drive the two sets of moving seats 11 to move under the connection of the first connecting sleeve 1002, and drive the moving seats 11 to move stably under the sliding cooperation of the sliding sleeve 1005 and the guide rail 1004, thereby driving the two sets of positioning frames 16 to move synchronously, and move the other set of fixed frames 3 close to the other end of the assembly frame 4 until the plug-in block 5 at the other end of the assembly frame 4 is inserted into the assembly slot 6 of the other fixed frame 3, thereby completing the assembly of the aluminum alloy frame 1. When assembling the aluminum alloy doors and windows, the driving machine The box 14 can adjust the rotation direction of the aluminum alloy frame 1 and adjust its direction according to the assembly requirements. After the aluminum alloy frame 1 is assembled, the positioning box 8 is operated to make room for the installation of the door and window glass 2. The door and window glass 2 is then installed into the inner side of the aluminum alloy frame 1 and pressed down so that the rear abutment edge 401 of the door and window glass 2 is against the back of the door and window glass 2. The rubber sealing strip 402 is used to seal and protect the door and window glass 2 on all sides. The positioning box 8 is then operated to position and fix the door and window glass 2. The reverse thrust of the tight mechanism 9 is used to further improve the tightness of the door and window glass 2 after assembly. Finally, the assembly of the aluminum alloy doors and windows is completed. The entire operation process is simple and convenient. The design can improve the convenience of assembly of aluminum alloy doors and windows and improve the production efficiency of aluminum alloy doors and windows.

[0040] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0041] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An assembled aluminum alloy door and window, characterized in that: include: Aluminum alloy frame and door and window glass, the door and window glass is fixedly installed on the inner side of the aluminum alloy frame, the aluminum alloy frame is surrounded by two sets of fixed frames and two assembly frames, the front and rear ends of the two sets of assembly frames are fixedly connected with plug-in blocks, the left and right ends of the two sets of fixed frames are provided with assembly slots at positions corresponding to the plug-in blocks, the plug-in blocks are fixedly connected with the assembly slots through fixing screws, the left and right ends of the fixed frames and the top of the door and window glass are fixedly installed with positioning boxes, and the front and rear ends of the two sets of assembly frames and the bottom of the door and window glass are installed with tight mechanisms; An abutting edge is fixedly connected on one side opposite to the two sets of assembly frames and located at the bottom of the door and window glass, and a rubber sealing strip is fixedly connected on the inner side of the fixed frame and the assembly frame and located around the door and window glass; The interior of the positioning box is slidably connected with a movable block, one end of the movable block located inside the positioning box is fixedly connected with a first spring, the top of the movable block is fixedly connected with an operating handle, one end of the movable block located outside the positioning box is fixedly connected with an arc-shaped spring sheet, and the bottom of the arc-shaped spring sheet and the surface of the door and window glass are fixedly connected with a first rubber pad; The operating handle is slidably connected to the positioning box through a sliding groove, and the outer side of the operating handle is provided with multiple sets of anti-slip grooves; The tight mechanism includes a movable groove opened inside the front and rear ends of the assembly frame, a movable plate is slidably connected inside the movable groove, one end of the movable plate located inside the movable groove is fixedly connected to a second spring, and one end of the movable plate located outside the movable groove and located at the bottom of the door and window glass is fixedly connected to a second rubber pad; When assembling the door and window glass, the operating handle slides the movable block to retract it into the interior of the positioning box to make space for the door and window glass to be installed, and the door and window glass is placed on the inner side of the aluminum alloy frame so that the bottom of the door and window glass contacts the second rubber pad and the movable plate is lowered, and the operating handle is released to pop out the movable block under the action of the first spring until the movable block is located at one end outside the positioning box to position and fix the door and window glass, and then the door and window glass is installed and fixed on the inner side of the aluminum alloy frame, and the first rubber pad is fitted to the door and window glass under the elastic force of the arc-shaped spring piece, and after the door and window glass is installed and fixed on the inner side of the aluminum alloy frame, the movable plate is pushed up under the action of the second spring.

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