Protective device for building construction based on assembly

Abstract

The invention relates to the technical field of building construction protection, in particular to an assembly type building construction based protection device which comprises a rectangular plate, a swing storage structure is arranged at the top of the rectangular plate, and two clamping fixing structures are further arranged at the top of the rectangular plate. According to the protection device based on the assembly type building construction, the swing storage structures are parallel by driving the cross stable structures to swing in a cross mode, the swing storage structures are parallel along with the swing storage structures, and the clamping fixing structures are driven to support and stabilize the swing storage structures; according to the swing storage structure, the swing storage structure can be supported in a crossed mode through machinery, meanwhile, a worker can stably walk on the swing storage structure, the situation that the worker forgets to install the supporting frame or the supporting frame is not installed and fastened can be prevented, and meanwhile the supporting stability of the swing storage structure is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction protection, and in particular to a protection device for assembled building construction. Background Art

[0002] Scaffolding is a working platform set up to ensure the smooth progress of each construction process. It can be divided into external scaffolding and internal scaffolding according to the location of the scaffolding; it can be divided into wooden scaffolding, bamboo scaffolding, and steel pipe scaffolding according to different materials; it can be divided into pole scaffolding, bridge scaffolding, portal scaffolding, suspended scaffolding, hanging scaffolding, cantilever scaffolding, and climbing scaffolding according to the structural form.

[0003] At present, most scaffolds are working platforms erected by assembling. After the scaffold is erected, most of the scaffolds are erected vertically and support frames are installed crosswise in the middle of two vertical parts to stabilize the scaffold. Although the existing scaffold can improve the stability of the installed scaffold, it is easy for people to forget to install the support frame or fail to completely tighten the support frame, which will reduce the stability of the scaffold and threaten the personal safety of subsequent workers. In addition, the existing scaffold needs to be dismantled manually when it is dismantled, which not only reduces work efficiency but also may cause incomplete dismantling or unnecessary damage to the surrounding scaffold structure due to improper manual operation. Moreover, most of the existing disassembled scaffoldings are transported securely by bundling. If the bundling is too tight, the scaffolding parts may be deformed or damaged. If the bundling is too loose, the scaffolding center of gravity may be unstable and fall off, thus affecting the transportation work. In view of this, we propose a protective device based on prefabricated building construction. Summary of the invention

[0004] The purpose of the present invention is to provide a protective device for assembled building construction to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides a protective device for assembled building construction, comprising a rectangular plate, a swing storage structure is provided on the top of the rectangular plate, two sets of clamping and fixing structures are also provided on the top of the rectangular plate, and a cross stabilizing structure is provided on the bottom of the swing storage structure; The cross-swing of the cross-stabilizing structure and the rectangular plate form a "triangle" bracket-like support swing storage structure, and drive the swing storage structure to rotate into a support platform; When the cross-stabilizing structure is used to reset the swing and gather, the swing storage structure is driven to rotate and fold downward, and at the same time, the clamping fixing structure is driven to clamp the limited swing storage structure.

[0006] Preferably, the swing storage structure includes a fixed plate, the bottom of the fixed plate is fixedly connected to the surface of the rectangular plate, the side of the fixed plate away from the rectangular plate is rotatably connected to a rotating shaft, and the surface of the rotating shaft is rotatably connected to a support plate.

[0007] Preferably, the support plates are arranged in two groups symmetrically along the transverse center of the rotation axis, and the two groups of support plates are rotatably connected to the rotation axis.

[0008] Preferably, the cross-stabilizing structure includes a first swinging plate, the middle part of the first swinging plate is fixedly connected to the output shaft end of the first external motor, the first external motor is fixedly connected to the fixed plate, the surface of the first swinging plate is fixedly connected to a first fixed shaft, the end of the first swinging plate close to the first fixed shaft is rotatably connected to a first U-shaped limiting plate through a first pin shaft, the bottom of the first U-shaped limiting plate is fixedly connected to a first spring, the end of the first spring away from the first U-shaped limiting plate is fixedly connected to a first sliding block, a first rectangular groove is opened on the surface of the rectangular plate, the interior of the first rectangular groove is slidably connected to the first sliding block, and the first spring is equipped with a first damping rod inside.

[0009] Preferably, one end of the first swing plate away from the first U-shaped limiting plate is rotatably connected to the second U-shaped limiting plate via a second pin shaft, the second U-shaped limiting plate is slidably connected to the bottom of the support plate, a second rectangular groove is provided at the bottom of the support plate, and the second U-shaped limiting plate is slidably connected inside the second rectangular groove provided at the bottom of the support plate.

[0010] Preferably, a third rectangular groove is provided on the surface of the rectangular plate, a second sliding block is slidably connected inside the third rectangular groove, a second spring is fixedly connected to the top of the second sliding block, a third U-shaped limiting plate is fixedly connected to the end of the second spring away from the second sliding block, a second swing plate is rotatably connected to the inside of the third U-shaped limiting plate through a third pin shaft, the second swing plate is fixedly connected to the output shaft end of the second external motor, a second damping rod is provided inside the second spring, a second fixed shaft is fixedly connected to the side of the second swing plate close to the third U-shaped limiting plate, a fourth U-shaped limiting plate is rotatably connected to the side of the second swing plate away from the third U-shaped limiting plate, a fourth rectangular groove is slidably connected to the surface of the fourth U-shaped limiting plate, and the fourth rectangular groove is provided at the bottom of the support plate.

[0011] Preferably, a second rectangular groove is formed at the bottom of the support plate, a second U-shaped limiting plate is slidably connected inside the second rectangular groove, and the second U-shaped limiting plate is rotationally connected to the second swing plate through a fourth pin shaft.

[0012] Preferably, the clip-on fixing structure includes a fifth rectangular groove, which is opened on the surface of the rectangular plate, and a telescopic sliding plate is slidably connected inside the fifth rectangular groove. The side of the telescopic sliding plate away from the fifth rectangular groove is rotatably connected to the bottom of the support plate through a fourth pin shaft, a first clip-on plate is fixedly connected to the side of the telescopic sliding plate, a telescopic plate is fixedly connected to the surface of the rectangular plate, and a second clip-on plate is fixedly connected to the side of the telescopic sliding plate away from the rectangular plate.

[0013] Preferably, the fifth rectangular grooves opened on the surface of the rectangular plate are symmetrically arranged in two groups along the transverse center of the rectangular plate, the telescopic sliding plates and the first clip plates slidably connected inside the fifth rectangular grooves are symmetrically arranged in two groups along the transverse center of the rectangular plate, the telescopic plate fixedly connected to the surface of the rectangular plate is telescopically arranged, and the second clip plates fixedly connected to the top of the telescopic plate are symmetrically arranged in two groups along the transverse center of the telescopic plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the protective device for assembled building construction, the swinging storage structure is parallelized by driving the cross-stabilizing structure to cross-swing. As the swinging storage structure is parallel, the clamping fixing structure is driven to support and stabilize the swinging storage structure, so that the swinging storage structure can be cross-supported by the machinery while the workers can walk steadily on the swinging storage structure. This can not only prevent the workers from forgetting to install the support frame or not installing and tightening the support frame, but also improve the stability of the swinging storage structure support.

[0015] 2. In the protective device for assembled building construction, the swinging storage structure is folded by resetting and swinging the cross-stabilizing structure, and at the same time, the clamping and fixing structure is driven to clamp and secure the swinging storage structure, so that the scaffolding can be folded and recycled, and the folded and recycled scaffolding can be clamped and secured at the same time. This can not only reduce the working time of the workers in disassembling the scaffolding, but also can automatically clamp and secure the folded scaffolding, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side perspective view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the present invention removing the swing storage structure; Figure 4 This is a top view of the present invention without the swing storage structure; Figure 5 This is a schematic diagram of the structure of the present invention without the rectangular plate; Figure 6 It is a schematic diagram of the motion state of the overall structure of the present invention; Figure 7 This is a schematic diagram of the motion state of the present invention without the swing storage structure; Figure 8 for Figure 7 The enlarged schematic diagram at A in the middle; Fig. 9 It is a schematic diagram of the motion state of the clamping fixing structure of the present invention.

[0017] The meaning of each number in the figure is: 1. rectangular plate; 200. swing storage structure; 201. fixed plate; 202. rotating shaft; 203. support plate; 300. cross stabilizing structure; 301. first swing plate; 302. first fixed shaft; 303. first U-shaped limit plate; 304. first spring; 305. first sliding block; 306. first rectangular groove; 307. second U-shaped limit plate; 308. second rectangular groove; 309. second swing plate; 310. third U-shaped limit plate; 311. second spring; 312. second sliding block; 313. third rectangular groove; 314. second fixed shaft; 315. fourth U-shaped limit plate; 316. fourth rectangular groove; 400. clamping fixing structure; 401. telescopic sliding plate; 402. first clamping plate; 403. fifth rectangular groove; 404. telescopic plate; 405. second clamping plate. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] For the embodiments of the present invention, please refer to Figures 1 to 9 A protective device for assembled building construction includes a rectangular plate 1, a swing storage structure 200 is provided on the top of the rectangular plate 1, two sets of clamping and fixing structures 400 are also provided on the top of the rectangular plate 1, and a cross stabilizing structure 300 is provided on the bottom of the swing storage structure 200; The cross-stabilizing structure 300 cross-sways to form a "triangle" bracket-like support for the swinging storage structure 200 with the rectangular plate 1, and drives the swinging storage structure 200 to rotate into a supporting platform; When the cross-stabilizing structure 300 is reset and swung together, the swing storage structure 200 is driven to rotate and fold downward, and at the same time, the clamping and fixing structure 400 is driven to clamp the limited swing storage structure 200; The present invention takes into account that most of the existing scaffolds are working platforms erected by assembling, and after the scaffold is erected, most of the scaffolds are erected vertically and the support frames are cross-installed in the middle of two vertical parts to stabilize the erected scaffold. Although the existing scaffold can improve the stability of the installed scaffold, it is easy for people to forget to install the support frame or fail to completely tighten the support frame, thereby reducing the stability of the scaffold and posing a threat to the personal safety of subsequent workers. In addition, the existing scaffold needs to be dismantled manually when it is dismantled, which not only reduces the work efficiency but also may be caused by irregular manual operation. The situation of the fan, which leads to incomplete dismantling or unnecessary damage to the surrounding scaffolding structure, therefore, the swinging storage structure 200 is paralleled by driving the cross-stabilizing structure 300 to swing crosswise, and the swinging storage structure 200 is paralleled and the clamping fixing structure 400 is driven to support and stabilize the swinging storage structure 200, so that the swinging storage structure 200 can be cross-supported by machinery while the staff can walk steadily on the swinging storage structure 200, which can not only prevent the staff from forgetting to install the support frame or not installing and fastening the support frame, but also improve the stability of the swinging storage structure 200 support; In addition, most of the existing scaffoldings after disassembly are stabilized for transportation by bundling. If the bundling is too tight, the scaffolding parts may be deformed or damaged. If the bundling is too loose, the center of gravity of the scaffolding may be unstable and it may fall off, thus affecting the transportation. Therefore, the cross-stabilizing structure 300 is reset and swung to fold the swinging storage structure 200 while driving the clamping and fixing structure 400 to clamp and stabilize the swinging storage structure 200. This allows the scaffolding to be folded and recycled while the folded and recycled scaffolding can be clamped and stabilized. This not only reduces the working time of the staff in disassembling the scaffolding, but also can automatically clamp and stabilize the folded scaffolding, thereby improving practicality.

[0020] In the above embodiments, the following specific structures need to be disclosed in detail: The swing storage structure 200 includes a fixed plate 201, the bottom of the fixed plate 201 is fixedly connected to the surface of the rectangular plate 1, the side of the fixed plate 201 away from the rectangular plate 1 is rotatably connected to a rotating shaft 202, and the surface of the rotating shaft 202 is rotatably connected to a supporting plate 203; In the above embodiment, in order to facilitate opening of the support plate 203, the following specific structure needs to be disclosed in detail. Please refer to FIG. Figures 1 to 6 , two groups of support plates 203 are symmetrically arranged along the horizontal center of the rotating shaft 202, and both groups of support plates 203 are rotatably connected to the rotating shaft 202; In the above embodiment, in order to facilitate the opening and supporting of the support plate 203, the cross-stabilizing structure 300 includes a first swing plate 301, the middle part of the first swing plate 301 is fixedly connected to the output shaft end of the first external motor, the first external motor is fixedly connected to the fixed plate 201, the surface of the first swing plate 301 is fixedly connected to the first fixed shaft 302, one end of the first swing plate 301 close to the first fixed shaft 302 is rotatably connected to the first U-shaped limiting plate 303 through the first pin shaft, the bottom of the first U-shaped limiting plate 303 is fixedly connected to the first spring 304, the end of the first spring 304 away from the first U-shaped limiting plate 303 is fixedly connected to the first sliding block 305, the surface of the rectangular plate 1 is provided with a first rectangular groove 306, the inside of the first rectangular groove 306 is slidably connected to the first sliding block 305, and the first spring 304 is equipped with a first damping rod; First of all, it is necessary to move the device to the work site by staff, and then start the first external motor to rotate it. The rotation here can only rotate half a circle to drive the first swing plate 301 to rotate. At that time, because the output shaft end of the external motor is fixedly connected to the middle of the first swing plate 301 as mentioned above, when the first swing plate 301 rotates, it will drive the first U-shaped limit plate 303 at the bottom to swing, and drive the first spring 304 (all the first springs 304 mentioned in this article can only be compressed or stretched by the swing of the first swing plate 301, and the pressure of the staff themselves cannot compress and stretch the first spring 304) and the first sliding block 305 to slide in the first rectangular groove 306 opened in the rectangular plate 1, and when the first swing plate 301 swings, it can drive the first fixed shaft 302 and another group of cross-stabilizing structures 300 to move synchronously, so as to facilitate the subsequent cross-support of the swing storage structure 200; In the above embodiment, in order to realize the opening support of the swing storage structure 200, the following specific structure needs to be disclosed in detail, please refer to Figure 5 The end of the first swing plate 301 away from the first U-shaped limiting plate 303 is rotatably connected to the second U-shaped limiting plate 307 through a second pin shaft, and the second U-shaped limiting plate 307 is slidably connected to the bottom of the support plate 203. A second rectangular groove 308 is opened at the bottom of the support plate 203, and the second U-shaped limiting plate 307 is slidably connected inside the second rectangular groove 308 opened at the bottom of the support plate 203; When the first swing plate 301 swings, the second U-shaped limiting plate 307 of the first swing plate 301 away from one end of the first U-shaped limiting plate 303 will be driven to slide inside the second rectangular groove 308. When the second U-shaped limiting plate 307 slides the maximum distance inside the second rectangular groove 308, the support plate 203 will be driven to open around the rotating shaft 202. In the above embodiment, in order to realize the opening and cross-supporting of the two groups of support plates 203, the following specific structures need to be disclosed in detail, please refer to Figures 2 to 6 A third rectangular groove 313 is provided on the surface of the rectangular plate 1, and a second sliding block 312 is slidably connected inside the third rectangular groove 313. A second spring 311 is fixedly connected to the top of the second sliding block 312, and a third U-shaped limiting plate 310 is fixedly connected to one end of the second spring 311 away from the second sliding block 312. A second swing plate 309 is rotatably connected to the inside of the third U-shaped limiting plate 310 through a third pin shaft, and the second swing plate 309 is fixedly connected to the output shaft end of the second external motor. A second damping rod is arranged inside the second spring 311, and a second fixed shaft 314 is fixedly connected to a side of the second swing plate 309 close to the third U-shaped limiting plate 310, and a fourth U-shaped limiting plate 315 is rotatably connected to a side of the second swing plate 309 away from the third U-shaped limiting plate 310, and a fourth rectangular groove 316 is slidably connected to the surface of the fourth U-shaped limiting plate 315, and the fourth rectangular groove 316 is provided at the bottom of the support plate 203; In the above embodiment, in order to further facilitate the opening of another group of support plates 203, the following specific structures need to be disclosed in detail, please refer to Figure 5 A second rectangular groove 308 is provided at the bottom of the support plate 203, a second U-shaped limiting plate 307 is slidably connected inside the second rectangular groove 308, and the second U-shaped limiting plate 307 is rotatably connected to the second swing plate 309 through a fourth pin shaft; When the first external motor is started, the second external motor will be driven to start at the same time (the output shaft ends of the two motors rotate in opposite directions), and can only rotate half a circle. When the second external motor rotates, the second swing plate 309 will be driven to swing (this embodiment works in the opposite way to the above embodiment), and the third U-shaped limit plate 310, the second spring 311 (all the second springs 311 mentioned in this article can only be compressed or stretched by the swing of the second swing plate 309, and the pressure of the staff themselves cannot compress the second spring 311) and stretch, and the second sliding block 312 will slide in the third rectangular groove 313, and when the second swing plate 309 swings, the second swing plate 309 is away from the third U-shaped limit plate 310 at one end. The fourth U-shaped limit plate 315 slides in the fourth rectangular groove 316. When the fourth U-shaped limit plate 315 slides the maximum distance in the fourth rectangular groove 316, it drives the other group of support plates 203 to open around the rotating shaft 202, so that the two groups of support plates 203 are placed in a parallel state. At this time, the swing of the second swing plate 309 drives the second fixed shaft 314 to drive the other group of cross-stabilizing structures 300 moving in the opposite direction to move synchronously, so as to cross-fix the support plates 203, thereby realizing the cross-support of the swing storage structure 200 through machinery and enabling the staff to walk steadily on the swing storage structure 200, which can not only prevent the staff from forgetting to install the support frame or not installing and fastening the support frame, but also improve the stability of the swing storage structure 200 support; In the above embodiment, in order to vertically support the rotating shaft 202, the following specific structure needs to be disclosed in detail, please refer to Figure 1 The clamping and fixing structure 400 includes a fifth rectangular groove 403, which is provided on the surface of the rectangular plate 1, and a telescopic sliding plate 401 is slidably connected inside the fifth rectangular groove 403, and a side of the telescopic sliding plate 401 away from the fifth rectangular groove 403 is rotatably connected to the bottom of the support plate 203 through a fourth pin shaft, a first clamping plate 402 is fixedly connected to the side of the telescopic sliding plate 401, a telescopic plate 404 is fixedly connected to the surface of the rectangular plate 1, and a second clamping plate 405 is fixedly connected to a side of the telescopic plate 404 away from the rectangular plate 1; When the support plate 203 is swung open, the telescopic sliding plate 401 is driven to slide inside the fifth rectangular groove 403. When the telescopic sliding plate 401 slides to the maximum distance, the telescopic sliding plate 401 is in a vertical state, thereby further improving the stability of the support plate 203. After the cross-stabilizing structure 300 and the clamping fixing structure 400 move to stabilize the support plate 203, the staff can install a ladder and climb to the surface of the support plate 203 to work, thereby improving practicality. In the above embodiment, in order to store the device when it is not in use, the following specific structure needs to be disclosed in detail, please refer to Figures 1 to 9 The fifth rectangular groove 403 opened on the surface of the rectangular plate 1 is symmetrically arranged in two groups along the horizontal center of the rectangular plate 1, and the telescopic sliding plate 401 and the first clamping plate 402 slidably connected inside the fifth rectangular groove 403 are symmetrically arranged in two groups along the horizontal center of the rectangular plate 1. The telescopic plate 404 fixedly connected to the surface of the rectangular plate 1 is a telescopic setting, and the second clamping plate 405 fixedly connected to the top of the telescopic plate 404 is symmetrically arranged in two groups along the horizontal center of the telescopic plate 404; When the device is not in use, it is necessary to use a staff ladder to dismantle the surface of the rectangular plate 1, and then start the two sets of external motors to rotate in opposite directions, so that the first swing plates 301 and the second swing plates 309 of the two sets move towards each other and swing, and drive the second U-shaped limit plates 307 of each set to slide inside the second rectangular groove 308 and the fourth U-shaped limit plates 315 to slide inside the fourth rectangular groove 316. When each set slides to the maximum distance, it will drive the support plates 203 of the two sets to swing around the rotating shaft 202 toward the bottom of the rectangular plate 1. Due to the restrictions of the fixed plate 201 and the rotating shaft 202, the support plates 203 can swing, and finally present Figure 5 As shown, when the first swing plate 301 and the second swing plate 309 of the two groups swing toward each other for the maximum distance, the first spring 304 and the second spring 311 of each group will be compressed, thereby facilitating the release of the pressure when the first swing plate 301 and the second swing plate 309 swing toward each other for the maximum distance. Please refer to the following Fig. 9When the two groups of support plates 203 are swung back and forth, the telescopic sliding plate 401 will be driven to compress and slide inside the fifth rectangular groove 403, so that the telescopic sliding plate 401 drives the first snap-in plate 402 to gradually approach the second snap-in plate 405, and when the first snap-in plate 402 contacts the second snap-in plate 405, the second snap-in plate 405 will be driven to compress on the telescopic plate 404, and when the telescopic sliding plate 401 and the first snap-in plate 402 move the maximum distance, the telescopic plate 404 releases the pressure and drives the second snap-in plate 405 and the first snap-in plate 402 to be snapped together, so that the scaffold can be folded and recycled while the folded and recycled scaffold can be snapped and stabilized, which can not only reduce the working time of the staff in disassembling the scaffold, but also can automatically snap and stabilize the folded scaffold, thereby improving practicality.

[0021] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A protective device for use in prefabricated building construction, comprising a rectangular plate (1), characterized in that: The top of the rectangular plate (1) is provided with a swinging storage structure (200), the top of the rectangular plate (1) is also provided with two groups of clamping fixing structures (400), and the bottom of the swinging storage structure (200) is provided with a cross-stabilizing structure (300); The cross-stabilizing structure (300) is cross-swung to form a "triangle" bracket shape with the rectangular plate (1), thereby supporting the swinging storage structure (200) and driving the swinging storage structure (200) to rotate into a supporting platform; When the cross-stabilizing structure (300) is used to reset the swinging and gathering, the swinging storage structure (200) is driven to rotate and fold downward, and at the same time, the clamping and fixing structure (400) is driven to clamp the limited swinging storage structure (200).

2. A protective device for assembled building construction according to claim 1, characterized in that: The swing storage structure (200) comprises a fixed plate (201), the bottom of the fixed plate (201) being fixedly connected to the surface of the rectangular plate (1), a side of the fixed plate (201) away from the rectangular plate (1) being rotatably connected to a rotating shaft (202), and the surface of the rotating shaft (202) being rotatably connected to a supporting plate (203).

3. A protective device for assembled building construction according to claim 2, characterized in that: Two groups of the support plates (203) are symmetrically arranged along the center of the rotating shaft (202), and both groups of the support plates (203) are rotatably connected to the rotating shaft (202).

4. The protective device for prefabricated building construction according to claim 1 is characterized in that: The cross-stabilizing structure (300) comprises a first swing plate (301), the middle part of the first swing plate (301) is fixedly connected to the output shaft end of the first external motor, the first external motor is fixedly connected to the fixed plate (201), the surface of the first swing plate (301) is fixedly connected to a first fixed shaft (302), one end of the first swing plate (301) close to the first fixed shaft (302) is rotatably connected to a first U-shaped limiting plate (303) via a first pin shaft, the bottom of the first U-shaped limiting plate (303) is fixedly connected to a first spring (304), one end of the first spring (304) away from the first U-shaped limiting plate (303) is fixedly connected to a first sliding block (305), a first rectangular groove (306) is opened on the surface of the rectangular plate (1), the interior of the first rectangular groove (306) is slidably connected to the first sliding block (305), and the interior of the first spring (304) is provided with a first damping rod.

5. A protective device for assembled building construction according to claim 4, characterized in that: One end of the first swing plate (301) away from the first U-shaped limiting plate (303) is rotatably connected to a second U-shaped limiting plate (307) via a second pin shaft; the second U-shaped limiting plate (307) is slidably connected to the bottom of the support plate (203); a second rectangular groove (308) is provided at the bottom of the support plate (203); the second U-shaped limiting plate (307) is slidably connected inside the second rectangular groove (308) provided at the bottom of the support plate (203).

6. The protective device for prefabricated building construction according to claim 1 is characterized in that: A third rectangular groove (313) is provided on the surface of the rectangular plate (1), a second sliding block (312) is slidably connected inside the third rectangular groove (313), a second spring (311) is fixedly connected to the top of the second sliding block (312), a third U-shaped limiting plate (310) is fixedly connected to one end of the second spring (311) away from the second sliding block (312), a second swing plate (309) is rotatably connected inside the third U-shaped limiting plate (310) via a third pin shaft, and the second swing plate (309) is rotatably connected to the second external The output shaft end of the motor is fixedly connected, a second damping rod is provided inside the second spring (311), a side of the second swing plate (309) close to the third U-shaped limiting plate (310) is fixedly connected to a second fixed shaft (314), a side of the second swing plate (309) away from the third U-shaped limiting plate (310) is rotatably connected to a fourth U-shaped limiting plate (315), a surface of the fourth U-shaped limiting plate (315) is slidably connected to a fourth rectangular groove (316), and the fourth rectangular groove (316) is provided at the bottom of the support plate (203).

7. The protective device for assembled building construction according to claim 3 is characterized in that: A second rectangular groove (308) is provided at the bottom of the support plate (203), a second U-shaped limiting plate (307) is slidably connected inside the second rectangular groove (308), and the second U-shaped limiting plate (307) is rotatably connected to the second swing plate (309) via a fourth pin shaft.

8. The protective device for assembled building construction according to claim 1 is characterized in that: The clamping fixing structure (400) comprises a fifth rectangular groove (403), the fifth rectangular groove (403) being provided on the surface of the rectangular plate (1), a telescopic sliding plate (401) being slidably connected inside the fifth rectangular groove (403), a side of the telescopic sliding plate (401) away from the fifth rectangular groove (403) being rotatably connected to the bottom of the support plate (203) via a fourth pin shaft, a first clamping plate (402) being fixedly connected to the side of the telescopic sliding plate (401), a telescopic plate (404) being fixedly connected to the surface of the rectangular plate (1), and a second clamping plate (405) being fixedly connected to the side of the telescopic sliding plate (404) away from the rectangular plate (1).

9. The protective device for prefabricated building construction according to claim 1, characterized in that: The fifth rectangular groove (403) opened on the surface of the rectangular plate (1) is symmetrically arranged in two groups along the transverse center of the rectangular plate (1); the telescopic sliding plate (401) and the first clamping plate (402) slidably connected inside the fifth rectangular groove (403) are symmetrically arranged in two groups along the transverse center of the rectangular plate (1); the telescopic plate (404) fixedly connected to the surface of the rectangular plate (1) is telescopically arranged; and the second clamping plate (405) fixedly connected to the top of the telescopic plate (404) is symmetrically arranged in two groups along the transverse center of the telescopic plate (404).

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