Lightweight high-strength square steel keel plastic-coated formwork quick-release supporting system and mounting method thereof

Abstract

The invention belongs to the technical field of constructional engineering, and particularly relates to a light-weight high-strength square steel keel plastic-coated formwork quick-release supporting system and a mounting method thereof.The light-weight high-strength square steel keel plastic-coated formwork quick-release supporting system comprises a plastic-coated formwork, and the plastic-coated formwork is made of light-weight carbon fiber reinforced plastics; the two square steel keels are arranged to be of a rectangular hollow structure; and the supporting and quick-dismounting assembly comprises two first positioning shaft bodies fixedly connected to the upper end faces of the square steel keels, two clamping grooves are formed in the lower end face of the plastic-coated formwork, and the two square steel keels are arranged in cooperation with the two clamping grooves correspondingly. The square steel keel can be disassembled relative to the plastic-coated formwork, so that the disassembling and assembling speed of a supporting structure in the keel plastic-coated formwork can be increased, the overall supporting force and stability of the keel plastic-coated formwork can be conveniently adjusted, rapid splicing and installing operation of two adjacent plastic-coated formworks can be achieved, and the assembling and disassembling efficiency of the square steel keel and the plastic-coated formwork is improved. And therefore, the overall splicing and mounting efficiency of the keel plastic-coated template can be effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction engineering, and in particular relates to a quick-disassembly support system for a lightweight and high-strength square steel keel plastic-coated formwork and an installation method thereof. Background Art

[0002] The keel plastic-coated formwork is a new type of building formwork. The square steel keel is used as the internal support framework to provide stable structural strength and bearing capacity. The square steel keel can effectively improve the ability of the plastic-coated formwork to resist lateral forces and deformation. The square steel keel and the plastic-coated formwork cooperate with each other to ensure that during the concrete pouring construction process, the keel plastic-coated formwork and the support system can maintain a stable and reliable working state, guaranteeing the forming quality of the building structure and construction safety.

[0003] However, the existing quick-disassembly support system for lightweight and high-strength square steel keel plastic-coated formwork often has the following problems when in use:

[0004] 1. The support structure of the keel plastic-coated formwork, that is, the internal square steel keel, is difficult to be quickly installed and disassembled from the formwork during the construction process, that is, the disassembly and assembly rate of the support structure in the keel plastic-coated formwork is low, and it is not convenient to adjust the overall supporting force and stability of the keel plastic-coated formwork.

[0005] 2. In addition, for the splicing and installation of multiple keel plastic-coated formworks, welding or riveting methods are usually adopted, and it is not convenient to quickly and accurately splice, position and fix the splicing positions of two adjacent keel plastic-coated formworks during the splicing and installation process, resulting in a low overall splicing and installation efficiency of the keel plastic-coated formwork.

[0006] Therefore, a quick-disassembly support system for a lightweight and high-strength square steel keel plastic-coated formwork and an installation method thereof are proposed to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a quick-disassembly support system for a lightweight and high-strength square steel keel plastic-coated formwork and an installation method thereof, which can effectively improve the disassembly and assembly rate of the support structure in the keel plastic-coated formwork and the overall splicing efficiency of the keel plastic-coated formwork, aiming at the problems of low disassembly and assembly rate of the support structure in the above keel plastic-coated formwork and low overall splicing and installation efficiency of the keel plastic-coated formwork.

[0008] To achieve the above object, the present invention adopts the following technical solutions: A quick-disassembly support system for a lightweight and high-strength square steel keel plastic-coated formwork, comprising:

[0009] A plastic-coated formwork, and the plastic-coated formwork is made of lightweight carbon fiber reinforced plastic;

[0010] Two square steel keels, and both of the two square steel keels are arranged in a rectangular hollow structure;

[0011] Support quick-release assembly, the support quick-release assembly includes two first positioning shafts fixedly connected to the upper end surface of the square steel keel, two clamping grooves are opened on the lower end surface of the plastic-coated template, the two square steel keels are respectively arranged in a matching manner with the two clamping grooves, a first positioning insertion hole is opened on the inner bottom surface of the clamping groove, the first positioning shaft is arranged in a matching manner with the first positioning insertion hole, plug-in fixing frames are fixedly connected to the inner sides of the two square steel keels, and a plug-in driving component is fixedly connected to the lower end surface of the plastic-coated template, and the plug-in driving component is used to complete the plug-in fixation of the plug-in fixing frame;

[0012] A quick splicing assembly is fixedly connected to the lower end surface of the plastic-coated template, and the quick splicing assembly is used to quickly realize the splicing and installation of two adjacent plastic-coated templates.

[0013] Preferably, the plug-in driving component includes a rotating bracket fixedly connected to the lower end surface of the plastic-coated template, a bidirectional screw is rotatably connected to the rotating bracket, two opposite sliders are threadedly connected to the bidirectional screw, a plurality of guide rods are fixedly connected to the outer walls of the two opposite sliders, a straight plate is fixedly connected to the end of the plurality of guide rods away from the opposite sliders, a plug-in shaft body is fixedly connected to the outer wall of the straight plate, a plug-in through hole is opened on the plug-in fixing frame, and the plug-in shaft body is arranged in a matching manner with the plug-in through hole.

[0014] Preferably, the quick splicing assembly includes two lifting slide rods fixedly connected to the lower end surface of the plastic-coated template, a lifting plate is slidably connected to the outer walls of the two lifting slide rods, two second positioning shafts are fixedly connected to the upper end surface of the lifting plate, a docking groove is opened on one side wall of the plastic-coated template, a splicing protrusion is fixedly connected to the other side wall of the plastic-coated template, the splicing protrusion and the docking groove are arranged in a symmetrical structure, second positioning insertion holes are opened on the lower end surface of the plastic-coated template at the docking groove and the splicing protrusion, the second positioning shaft is arranged in a matching manner with the second positioning insertion hole, and a plurality of splicing fixing components are fixedly connected to the lower end surface of the plastic-coated template, and the splicing fixing components are used to lock and fix two adjacent plastic-coated templates.

[0015] Preferably, the splicing fixing component includes a splicing fixing bracket fixedly connected to the lower end surface of the plastic-coated template, a threaded sleeve is fixedly connected to the end of the splicing fixing bracket away from the plastic-coated template, a locking bolt is threadedly connected to the inner side of the threaded sleeve, a locking thread groove is opened on the lower end surface of the plastic-coated template, and the locking bolt is arranged in a matching manner with the locking thread groove.

[0016] Preferably, a linear guide rail is fixedly connected to the lower end surface of the plastic-coated template, roller frames are fixedly connected to the upper end surfaces of the two opposite sliders, rollers are rotatably connected to the roller frames, and the rollers are arranged in a matching manner with the linear guide rail.

[0017] Preferably, a disassembly and assembly knob is fixedly connected to the middle position of the outer wall of the bidirectional screw, and a plurality of silica gel anti-slip strips are fixedly connected to the outer peripheral wall of the disassembly and assembly knob.

[0018] Preferably, a pressure spring is sleeved on the outer wall of the lifting slide rod, and the upper and lower ends of the pressure spring are respectively fixedly connected to the lower end surface of the lifting plate and the lower end of the lifting slide rod.

[0019] An installation method for the lightweight high-strength square steel keel plastic-coated template quick-disassembly support system described above specifically includes the following steps:

[0020] S1. Construction preparation;

[0021] S2. Installation of square steel keel and plastic-coated template;

[0022] S3. Installation and laying of plastic-coated template splicing;

[0023] S4. Concrete pouring and curing.

[0024] Compared with the existing technology, the advantages of the lightweight high-strength square steel keel plastic-coated template quick-disassembly support system and its installation method are as follows:

[0025] 1. In the present invention, a support quick-disassembly component is provided. By using the corresponding matching of the square steel keel and the clamping groove, as well as the first positioning shaft body and the first positioning jack, the preliminary positioning and fixing of the square steel keel and the plastic-coated template can be quickly completed. Then, by rotating the bidirectional screw, the two opposing sliders are driven to move in opposite directions, so that the two plug shafts can move synchronously in opposite directions and are respectively inserted into the plug through holes on the two plug fixing frames, so as to simultaneously perform synchronous plugging and fixing on the two square steel keels. When disassembling the square steel keel, by rotating the bidirectional screw in the reverse direction, the two plug shafts move towards each other, and the disassembly operation of the square steel keel relative to the plastic-coated template can be realized. Thus, the disassembly and assembly rate of the support structure in the keel plastic-coated template can be improved, and it is convenient to adjust the overall support force and stability of the keel plastic-coated template.

[0026] 2. In the present invention, a quick splicing component is provided. By using the elastic potential energy of the pressure spring, the lifting plate can be automatically pushed to rise and move, so that the second positioning shaft body on the lifting plate can be sequentially inserted into the second positioning jacks on the plastic-coated template and the splicing protrusion, so as to quickly and accurately splice and position two adjacent plastic-coated templates. After the splicing and positioning of two adjacent plastic-coated templates is completed, the locking bolt on one of the plastic-coated templates just corresponds to the locking thread groove on the lower end surface of the other plastic-coated template. By tightening the locking bolt, the two adjacent plastic-coated templates can be fully locked and fixed, realizing the quick splicing and installation operation of two adjacent plastic-coated templates. Thus, the overall splicing and installation efficiency of the keel plastic-coated template can be effectively improved. Description of the Drawings

[0027] Figure 1It is a schematic flow diagram of the installation method of a lightweight high-strength square steel keel plastic-coated formwork quick-release support system provided by the present invention.

[0028] Figure 2 It is a three-dimensional structure schematic diagram of one perspective of a lightweight high-strength square steel keel plastic-coated formwork quick-release support system provided by the present invention.

[0029] Figure 3 It is a three-dimensional structure schematic diagram of another perspective of a lightweight high-strength square steel keel plastic-coated formwork quick-release support system provided by the present invention.

[0030] Figure 4 It is a schematic diagram of a partial structure of the plastic-coated formwork in a lightweight high-strength square steel keel plastic-coated formwork quick-release support system provided by the present invention.

[0031] Figure 5 It is a schematic diagram of a partial structure of the square steel keel in a lightweight high-strength square steel keel plastic-coated formwork quick-release support system provided by the present invention.

[0032] Figure 6 It is a side view of the plastic-coated formwork in a lightweight high-strength square steel keel plastic-coated formwork quick-release support system provided by the present invention.

[0033] Figure 7 For Figure 6 An enlarged view of part A.

[0034] Figure 8 It is a schematic diagram of a partial structure of the plug-in driving component in a lightweight high-strength square steel keel plastic-coated formwork quick-release support system provided by the present invention.

[0035] In the figure: 1 plastic-coated formwork, 2 square steel keel, 3 first positioning shaft body, 4 clamping groove, 5 first positioning jack, 6 plug-in fixing frame, 7 rotating bracket, 8 bidirectional screw, 9 opposing slider, 10 guide rod, 11 straight plate, 12 plug-in shaft body, 13 lifting slide rod, 14 lifting plate, 15 second positioning shaft body, 16 docking groove, 17 splicing protrusion, 18 second positioning jack, 19 splicing fixing bracket, 20 threaded sleeve, 21 locking bolt, 22 locking thread groove, 23 linear guide rail, 24 roller frame, 25 roller, 26 disassembly and assembly knob, 27 silicone anti-slip strip, 28 pressure spring, 29 plug-in through hole. Specific embodiments

[0036] The following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0037] Such as Figures 2 - 8As shown in the figure, a quick-disassembly support system for a lightweight and high-strength square steel keel plastic-coated template includes: a plastic-coated template 1, two square steel keels 2, and a support quick-disassembly component. The plastic-coated template 1 is made of lightweight carbon fiber-reinforced plastic; the two square steel keels 2 are both arranged in a rectangular hollow structure; the support quick-disassembly component includes two first positioning shafts 3 fixedly connected to the upper end surface of the square steel keel 2. Two clamping grooves 4 are opened on the lower end surface of the plastic-coated template 1. The two square steel keels 2 are respectively arranged in a matching manner with the two clamping grooves 4. A first positioning insertion hole 5 is opened on the inner bottom surface of the clamping groove 4. The first positioning shaft 3 is arranged in a matching manner with the first positioning insertion hole 5. Plug-in fixing frames 6 are fixedly connected to the inner sides of the two square steel keels 2. A plug-in driving component is fixedly connected to the lower end surface of the plastic-coated template 1. The plug-in driving component is used to complete the plug-in fixation of the plug-in fixing frame 6. The plug-in driving component includes a rotating bracket 7 fixedly connected to the lower end surface of the plastic-coated template 1. A bidirectional screw 8 is rotatably connected to the rotating bracket 7. An assembly and disassembly knob 26 is fixedly connected to the middle position of the outer wall of the bidirectional screw 8. A plurality of silica gel anti-slip strips 27 are fixedly connected to the outer peripheral wall of the assembly and disassembly knob 26. Two opposite sliders 9 are threadedly connected to the bidirectional screw 8. A linear guide rail 23 is fixedly connected to the lower end surface of the plastic-coated template 1. Roller frames 24 are fixedly connected to the upper end surfaces of the two opposite sliders 9. A roller 25 is rotatably connected to the roller frame 24. The roller 25 is arranged in a matching manner with the linear guide rail 23. A plurality of guide rods 10 are fixedly connected to the outer walls of the two opposite sliders 9. A straight plate 11 is fixedly connected to the end of the plurality of guide rods 10 away from the opposite sliders 9. A plug-in shaft 12 is fixedly connected to the outer wall of the straight plate 11. A plug-in through hole 29 is opened on the plug-in fixing frame 6. The plug-in shaft 12 is arranged in a matching manner with the plug-in through hole 29;

[0038] Insert the square steel keel 2 into the clamping groove 4 on the lower end surface of the plastic-coated template 1. At this time, the first positioning shaft 3 is synchronously inserted into the first positioning insertion hole 5 to quickly complete the preliminary positioning and fixation of the square steel keel 2 and the plastic-coated template 1. Then, rotate the assembly and disassembly knob 26 to drive the bidirectional screw 8 to rotate, so that the two opposite sliders 9 on the bidirectional screw 8 start to move in opposite directions. Then, the two opposite sliders 9 start to drive the two plug-in shafts 12 to move synchronously and oppositely through a plurality of guide rods 10 and are respectively inserted into the plug-in through holes 29 on the two plug-in fixing frames 6, so as to simultaneously perform synchronous plug-in fixation on the two square steel keels 2. When disassembling the square steel keel 2, rotate the bidirectional screw 8 in the reverse direction, so that the two plug-in shafts 12 move towards each other. Then, the plug-in shaft 12 is no longer in plug-in fixation cooperation with the plug-in fixing frame 6, and the disassembly operation of the square steel keel 2 relative to the plastic-coated template 1 can be realized. Thus, the disassembly and assembly speed of the support structure in the keel plastic-coated template can be improved, and it is convenient to adjust the overall support force and stability of the keel plastic-coated template.

[0039] Such as Figures 1 - 3 、 Figure 6 and Figure 7As shown in the figure, a quick splicing component is fixedly connected to the lower end surface of the plastic-coated template 1. The quick splicing component is used to quickly realize the splicing and installation of two adjacent plastic-coated templates 1. The quick splicing component includes two lifting slide rods 13 fixedly connected to the lower end surface of the plastic-coated template 1. A lifting plate 14 is slidably connected to the outer walls of the two lifting slide rods 13. A pressure spring 28 is sleeved on the outer walls of the lifting slide rods 13. The upper and lower ends of the pressure spring 28 are respectively fixedly connected to the lower end surface of the lifting plate 14 and the lower ends of the lifting slide rods 13. Two second positioning shafts 15 are fixedly connected to the upper end surface of the lifting plate 14. A docking groove 16 is formed in one side wall of the plastic-coated template 1. A splicing protrusion 17 is fixedly connected to the other side wall of the plastic-coated template 1. The splicing protrusion 17 and the docking groove 16 are arranged symmetrically. Second positioning insertion holes 18 are formed in the lower end surface of the plastic-coated template 1 at the positions of the docking groove 16 and the splicing protrusion 17. The second positioning shafts 15 are matched with the second positioning insertion holes 18. A plurality of splicing fixing components are fixedly connected to the lower end surface of the plastic-coated template 1. The splicing fixing components are used to lock and fix two adjacent plastic-coated templates 1. The splicing fixing component includes a splicing fixing bracket 19 fixedly connected to the lower end surface of the plastic-coated template 1. A threaded sleeve 20 is fixedly connected to the end of the splicing fixing bracket 19 away from the plastic-coated template 1. A locking bolt 21 is threadedly connected to the inner side of the threaded sleeve 20. A locking thread groove 22 is formed in the lower end surface of the plastic-coated template 1. The locking bolt 21 is matched with the locking thread groove 22;

[0040] By pulling the lifting plate 14 downward, the pressure spring 28 is gradually compressed and stores a certain amount of elastic potential energy. At this time, two adjacent plastic-coated templates 1 are spliced, that is, the splicing protrusion 17 on one plastic-coated template 1 is inserted into the docking groove 16 on the other plastic-coated template 1. Then, no more pulling force is applied to the lifting plate 14. The elastic potential energy of the pressure spring 28 is used to push the lifting plate 14 to rise automatically, so that the second positioning shafts 15 on the lifting plate 14 can be sequentially inserted into the second positioning insertion holes 18 on the plastic-coated template 1 and the splicing protrusion 17, so as to quickly and accurately splice and position two adjacent plastic-coated templates 1. After the splicing and positioning of two adjacent plastic-coated templates 1 are completed, the locking bolt 21 on one plastic-coated template 1 just corresponds to the locking thread groove 22 on the lower end surface of the other plastic-coated template 1. At this time, by tightening the locking bolt 21, two adjacent plastic-coated templates 1 can be fully locked and fixed, so that the quick splicing and installation operation of two adjacent plastic-coated templates 1 can be realized, and the overall splicing and installation efficiency of the keel plastic-coated template can be effectively improved.

[0041] As Figure 1 shown, an installation method for a quick-disassembly support system of a lightweight high-strength square steel keel plastic-coated template specifically includes the following steps:

[0042] S1. Construction preparation;

[0043] S2. Installation of the square steel keel 2 and the plastic-coated template 1;

[0044] S3. Install and lay the plastic-coated formwork 1 by splicing;

[0045] S4. Pour and cure the concrete.

[0046] The working principle of the present invention is as follows:

[0047] 1. During use, connect the square steel keel 2 into the clamping groove 4 on the lower end face of the plastic-coated formwork 1. At this time, the first positioning shaft body 3 is synchronously connected into the first positioning jack 5 to quickly complete the preliminary positioning and fixing of the square steel keel 2 and the plastic-coated formwork 1. Then, drive the bidirectional screw 8 to rotate by turning the disassembly and assembly knob 26, so that the two opposing sliders 9 on the bidirectional screw 8 start to move in opposite directions. Furthermore, the two opposing sliders 9 start to drive the two plug-in shaft bodies 12 to move synchronously in opposite directions through a plurality of guide rods 10 and are respectively connected into the plug-in through holes 29 on the two plug-in fixing frames 6, so as to simultaneously perform synchronous plug-in fixing on the two square steel keels 2. When disassembling the square steel keel 2, reverse-rotate the bidirectional screw 8, so that the two plug-in shaft bodies 12 move towards each other, and then the plug-in shaft bodies 12 are no longer in plug-in fixing cooperation with the plug-in fixing frames 6, and the disassembly operation of the square steel keel 2 relative to the plastic-coated formwork 1 can be realized, thereby improving the disassembly and assembly rate of the support structure in the keel plastic-coated formwork and facilitating the adjustment of the overall support force and stability of the keel plastic-coated formwork;

[0048] 2. During the splicing and installation operation of the keel plastic-coated formwork, pull the lifting plate 14 downward to gradually compress the pressure spring 28 and accumulate a certain amount of elastic potential energy. At this time, splice two adjacent plastic-coated formworks 1, that is, the splicing protrusion 17 on one plastic-coated formwork 1 is connected into the docking groove 16 on the other plastic-coated formwork 1. Then, no longer apply a pulling force to the lifting plate 14, and use the elastic potential energy of the pressure spring 28 to push the lifting plate 14 to automatically rise, so that the second positioning shaft body 15 on the lifting plate 14 can be successively connected into the second positioning jacks 18 on the plastic-coated formwork 1 and the splicing protrusion 17, so as to quickly and accurately splice and position two adjacent plastic-coated formworks 1. After the splicing and positioning of two adjacent plastic-coated formworks 1 is completed, the locking bolt 21 on one plastic-coated formwork 1 just corresponds to the locking thread groove 22 on the lower end face of the other plastic-coated formwork 1. At this time, tighten the locking bolt 21 to fully lock and fix two adjacent plastic-coated formworks 1, thereby realizing the quick splicing and installation operation of two adjacent plastic-coated formworks 1 and effectively improving the overall splicing and installation efficiency of the keel plastic-coated formwork.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lightweight and high-strength square steel keel plastic-coated formwork quick-disassembly support system, characterized in that, Including: A plastic - coated template (1), and the plastic - coated template (1) is made of lightweight carbon fiber - reinforced plastic; Two square steel keels (2), and both of the two square steel keels (2) are arranged in a rectangular hollow structure; A support quick - release assembly. The support quick - release assembly includes two first positioning shaft bodies (3) fixedly connected to the upper end surface of the square steel keel (2). Two clamping grooves (4) are opened on the lower end surface of the plastic - coated template (1). The two square steel keels (2) are respectively arranged in a matching manner with the two clamping grooves (4). A first positioning jack (5) is opened on the inner bottom surface of the clamping groove (4). The first positioning shaft body (3) is arranged in a matching manner with the first positioning jack (5). Plug - in fixing frames (6) are fixedly connected to the inner sides of the two square steel keels (2). A plug - in driving component is fixedly connected to the lower end surface of the plastic - coated template (1), and the plug - in driving component is used to complete the plug - in fixation of the plug - in fixing frame (6); A quick - splicing assembly is fixedly connected to the lower end surface of the plastic - coated template (1), and the quick - splicing assembly is used to quickly realize the splicing and installation of two adjacent plastic - coated templates (1).

2. The quick-disassembly support system for a lightweight and high-strength square steel keel plastic-coated formwork according to claim 1, characterized in that, The plug - in driving component includes a rotating bracket (7) fixedly connected to the lower end surface of the plastic - coated template (1). A bidirectional screw rod (8) is rotatably connected to the rotating bracket (7). Two oppositely moving sliders (9) are threadedly connected to the bidirectional screw rod (8). A plurality of guide rods (10) are fixedly connected to the outer walls of the two oppositely moving sliders (9). The end parts of the plurality of guide rods (10) far away from the oppositely moving sliders (9) are fixedly connected to a straight plate (11). A plug - in shaft body (12) is fixedly connected to the outer wall of the straight plate (11). A plug - in through - hole (29) is opened on the plug - in fixing frame (6), and the plug - in shaft body (12) is arranged in a matching manner with the plug - in through - hole (29).

3. The quick-disassembly support system for a lightweight and high-strength square steel keel plastic-coated formwork according to claim 1, wherein, The quick - splicing assembly includes two lifting slide rods (13) fixedly connected to the lower end surface of the plastic - coated template (1). A lifting plate (14) is slidably connected to the outer walls of the two lifting slide rods (13). Two second positioning shaft bodies (15) are fixedly connected to the upper end surface of the lifting plate (14). A docking groove (16) is opened on one side wall of the plastic - coated template (1). A splicing protrusion (17) is fixedly connected to the other side wall of the plastic - coated template (1). The splicing protrusion (17) and the docking groove (16) are arranged in a symmetric structure. Second positioning jacks (18) are opened on the lower end surface of the plastic - coated template (1) at the positions of the docking groove (16) and the splicing protrusion (17). The second positioning shaft body (15) is arranged in a matching manner with the second positioning jack (18). A plurality of splicing fixing components are fixedly connected to the lower end surface of the plastic - coated template (1), and the splicing fixing components are used to lock and fix two adjacent plastic - coated templates (1).

4. The quick-release support system for a lightweight and high-strength square steel keel plastic-coated formwork according to claim 3, characterized in that, The splicing and fixing component includes a splicing and fixing bracket (19) fixedly connected to the lower end surface of the plastic-coated template (1). The end of the splicing and fixing bracket (19) away from the plastic-coated template (1) is fixedly connected with a threaded sleeve (20). A locking bolt (21) is threadedly connected inside the threaded sleeve (20). A locking thread groove (22) is formed on the lower end surface of the plastic-coated template (1). The locking bolt (21) is arranged in a matching manner with the locking thread groove (22).

5. The quick-release support system for a lightweight and high-strength square steel keel plastic-coated formwork according to claim 2, characterized in that, A linear guide rail (23) is fixedly connected to the lower end surface of the plastic-coated template (1). Roller frames (24) are fixedly connected to the upper end surfaces of the two opposing sliders (9). Rollers (25) are rotatably connected to the roller frames (24). The rollers (25) are arranged in a matching manner with the linear guide rail (23).

6. The quick-disassembly support system for a lightweight and high-strength square steel keel plastic-coated formwork according to claim 2, wherein, A disassembly and assembly knob (26) is fixedly connected to the middle position of the outer wall of the bidirectional screw rod (8). A number of silica gel anti-slip strips (27) are fixedly connected to the outer peripheral wall of the disassembly and assembly knob (26).

7. The quick-release support system for a lightweight and high-strength square steel keel plastic-coated formwork according to claim 3, characterized in that, A pressure spring (28) is sleeved on the outer wall of the lifting slide rod (13). The upper and lower ends of the pressure spring (28) are fixedly connected to the lower end surface of the lifting plate (14) and the lower end of the lifting slide rod (13) respectively.

8. An installation method for the lightweight high-strength square steel keel plastic-coated formwork quick-release support system according to claim 7, characterized in that, Specifically, it includes the following steps: S1. Construction preparation; S2. Installation of the square steel keel (2) and the plastic-coated template (1); S3. Splicing, installation and laying of the plastic-coated template (1); S4. Concrete pouring and curing.

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