Floor protection device and application thereof

Abstract

The application discloses a floor protection device and application thereof, which comprises a buffer column, a buffer support and a buffer net. The buffer column adopts the structure of a buffer bullet-stopping column, the buffer support adopts a plurality of triangular pyramid structures, and the buffer net adopts a two-stage buffer net structure, so that the floor protection device has good structural stability and buffer effect. The floor protection device is applied to high-rise protection devices to effectively protect the safety of falling persons. In addition, an emergency escape channel is arranged, so that in an emergency such as high-rise fire, a person can escape through the protection device at the periphery of the floor.

Description

Technical Field

[0001] This invention belongs to the field of floor protection devices, and in particular relates to a floor protection device and its application. Background Technology

[0002] With the increasing academic pressure on students, the physical and mental health of teenagers has always been a focus of attention for families, schools, and society. Although various sectors of society have taken some measures to strengthen the ideological and moral education of teenagers, campus falls have occurred frequently. In order to prevent students from falling, some schools have installed cameras on campus for real-time monitoring and increased the intensity of campus security patrols. However, due to the use of manual monitoring, there are problems such as large monitoring range, insufficient intensity, and low efficiency.

[0003] In an effort to prevent similar incidents from recurring, some schools have completely sealed off the windows, balconies, and corridors of school buildings, dormitories, and other areas where students congregate with activities, with metal railings and netting. This has created an environment where teachers and students are essentially living and learning in a giant birdcage. Over time, the potential harm to students' physical and mental development is immeasurable.

[0004] In addition, floor safety measures are also essential for large enterprises or labor-intensive businesses. These companies have high population density, and most employees work and live in close proximity; therefore, both fire safety and the safety of employees must be absolutely guaranteed. In recent years, large companies like Foxconn and BYD have experienced a series of employee falls from high-rise buildings; similar incidents have also occurred in hospitals and nursing homes, places frequented by vulnerable populations; and countless pedestrians have been killed or maimed by falling objects from high-rise buildings.

[0005] Furthermore, in the event of a high-rise fire, people's escape routes are relatively limited, mainly relying on staircases. When the fire intensifies on a particular floor, these escape routes can become blocked. Therefore, it is necessary to design a new escape method, such as setting up escape passages on the exterior walls of the building at suitable locations to quickly facilitate evacuation. Consequently, it is essential to design a protective device that can be installed between the exterior floors of a high-rise building. Summary of the Invention

[0006] To address the shortcomings of the existing technology, the present invention provides a floor protection device.

[0007] The technical solution of this invention is implemented as follows:

[0008] A floor protection device, characterized in that it comprises:

[0009] A buffer column, installed on the first base plate, is used to buffer the impact of falling objects;

[0010] A buffer bracket, installed on the buffer column and the first base plate, is used to generate deformation to withstand impact force, and includes a long side bar and a short cross bar, which form a buffer area;

[0011] A buffer net is located within the buffer area and connected to the buffer support by a steel wire rope to buffer the impact of falling objects.

[0012] In this floor protection device of the present invention, the buffer net adopts a two-stage buffer net structure. The two-stage buffer net structure includes a main grid assembly and a secondary grid assembly. The main grid assembly includes an outer frame and a main buffer net. The outer frame includes long side bars and short cross bars. The short cross bars include a first short cross bar and a second short cross bar. The first short cross bar and the second short cross bar are hinged together by a limiting hinge. The long side bars are provided with grid locks. The secondary grid assembly is located below the main buffer net and is used to support the main buffer net. It can be detachably installed in the outer frame by the grid locks.

[0013] In this floor protection device of the present invention, the limiting hinge includes a first movable member and a second movable member, the first movable member being installed inside the first short crossbar and the second movable member being installed inside the second short crossbar.

[0014] In this floor protection device of the present invention, the first movable member is provided with a first main pin hole, a waist-shaped groove and a limiting pin hole, the second movable member includes a second main pin hole and a second bolt hole, the first main pin hole and the second main pin hole are locked by a U-shaped member, and the second bolt hole and the waist-shaped groove are connected by bolts.

[0015] In this floor protection device of the present invention, the buffer column is a buffer anti-bullet column, the buffer anti-bullet column includes a buffer structure and an anti-bullet structure, the anti-bullet structure is located inside the buffer structure, the buffer structure includes a buffer sleeve, the anti-bullet structure includes an anti-bullet sleeve, and a first buffer spring is provided between the buffer sleeve and the anti-bullet sleeve.

[0016] The buffer structure also includes a buffer, which is installed on the bottom plate of the buffer sleeve and located inside the bullet-stopping sleeve. A bullet-stopping rod is slidably provided inside the bullet-stopping sleeve. Multiple nuts are evenly installed around the bullet-stopping rod, and bullet-stopping retaining rings are provided between the nuts. Arc-shaped convex rings are evenly arrayed on the inner wall of the bullet-stopping sleeve.

[0017] In this floor protection device of the present invention, the bulletproof retaining ring is an open circular ring, and the bulletproof retaining ring has a plurality of arc-shaped notches evenly arranged on it.

[0018] In this floor protection device of the present invention, the arc-shaped convex ring includes a first slope and a second slope, wherein the slope of the first slope is less than the slope of the second slope, and the length of the ramp of the first slope is greater than the length of the ramp of the second slope.

[0019] In this floor protection device of the present invention, the buffer bracket includes a first buffer rod, a second buffer rod, and a third buffer rod. The first and second buffer rods are mounted on a buffer column via a first connector. The buffer column is fixed to a first base plate. One end of the third buffer rod is hinged to the first base plate, and the other end is hinged to the second buffer rod.

[0020] The first connector and the second buffer rod are each provided with a three-way connector above them. A long side rod and a short cross rod are respectively installed at both ends of the three-way connector. The long side rod and the short cross rod form a region, and the buffer net is provided in the region.

[0021] In this floor protection device of the present invention, the buffer bracket further includes a fourth buffer rod, one end of which is hinged to the first connector, and the other end is slidably disposed on the third buffer rod.

[0022] In this floor protection device of the present invention, the first connecting member includes an arc-shaped mounting plate, a side mounting plate, a sliding column, and a bottom mounting plate. The side mounting plate, the arc-shaped mounting plate, and the bottom mounting plate are all bolted to the buffer sleeve. The sliding column is slidably disposed between the side mounting plates via a third pin. The sliding column is provided with the tee connector, a first fixed end, a second fixed end, and a first hinge end. The buffer bracket is mounted on the first connecting member via the first fixed end, the second fixed end, and the first hinge end.

[0023] In this floor protection device of the present invention, the first buffer rod and the second buffer rod are respectively connected to the first fixed end and the second fixed end, one end of the fourth buffer rod is hinged to the third pin, and the other end is slidably disposed on the third buffer rod.

[0024] In this floor protection device of the present invention, the long side rod is hinged to the tee connector via a second connector.

[0025] A floor protection device for high-rise buildings, characterized in that it includes the aforementioned floor protection devices, wherein the floor protection devices are connected in series in pairs via a T-junction connector.

[0026] As a further improvement of the present invention, the vertical interval between the floor protection devices is at least the height of two floors.

[0027] The floor protection device of this invention has the following advantages:

[0028] (1) A two-stage buffer net structure is set up to provide maximum buffering force within a limited space, and can provide maximum buffering force and net frame bearing capacity to protect against falling objects. In addition, an emergency escape route is also provided, so that in case of emergency such as high-rise fire, people can escape through the protective devices on the outside of the building.

[0029] (2) The structure of the buffer anti-bounce column is adopted. While having a good buffer effect, it can prevent the buffer column from suddenly popping up. It is firm and reliable and can be used for a long time. In particular, it can effectively protect the safety of falling people when applied in high-rise building protection devices.

[0030] (3) The buffer support adopts a structure of multiple triangular pyramids, which greatly improves the stability of the buffer support and makes it have good stability and buffering effect within a short stroke. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the floor protection device of the present invention;

[0032] Figure 2 for Figure 1 The right view;

[0033] Figure 3 for Figure 1 The diagram illustrates the changing states of the secondary space frame component, showing the structure where the secondary space frame component is separated from the main space frame component.

[0034] Figure 4 for Figure 1 The top view shows the structure of the endurance plate, escape hatches, and main buffer net;

[0035] Figure 5 for Figure 1 The bottom view shows a schematic diagram of the substructure components;

[0036] Figure 6 for Figure 1 A three-dimensional image;

[0037] Figure 7 for Figure 6 Exploded view of the middle limit hinge;

[0038] Figure 8 for Figure 6 Enlarged and exploded diagram of section A in the middle;

[0039] Figure 9 for Figure 6 Diagram of the locking mechanism for the central grid structure;

[0040] Figure 10 for Figure 9 Another direction diagram;

[0041] Figure 11 for Figure 6 A schematic diagram of the structure of the buffer anti-bounce post in the middle;

[0042] Figure 12 for Figure 11 A schematic diagram of the AA-direction cross-section;

[0043] Figure 13 for Figure 12 A cross-sectional view of the detonation sleeve;

[0044] Figure 14 for Figure 12 Enlarged schematic diagram of part A;

[0045] Figure 15 for Figure 12 Schematic diagram of the stop spring retainer ring;

[0046] Figure 16 for Figure 6 Schematic diagram of the middle connector;

[0047] Figure 17 for Figure 16 A schematic diagram of the decomposition process;

[0048] Figure 18 for Figure 6 Schematic diagram of the middle buffer support;

[0049] Figure 19 for Figure 18 A bottom view;

[0050] Figure 20 for Figure 18 A three-dimensional image;

[0051] Figure 21 for Figure 18 The enlarged schematic diagram of section A mainly shows the connection structure of the elbow;

[0052] Figure 22 for Figure 18 The exploded diagram omits the structure of the buffer column and the first connecting piece;

[0053] Figure 23 for Figure 18 The diagram shows another structure, mainly illustrating different tee connector structures;

[0054] Figure 24 for Figure 23 Enlarged schematic diagram of part B. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0056] like Figures 1 to 24 The floor protection device of the present invention shown includes a buffer column 200, a buffer support 300, and a buffer net 100.

[0057] Please refer to Figures 1 to 10 The buffer net 100 of the present invention shown adopts a two-stage buffer net structure, which includes a main frame assembly 110 and a secondary frame assembly 120. The main frame assembly 110 is mounted on a buffer support 300, and the buffer support 300 is mounted on a buffer column 200. The main frame assembly 110 includes an outer frame 130 and a main buffer net 140. The outer frame 130 includes a long side bar 131 and a short cross bar 132. A limiting hinge 150 is provided between the short cross bars 132. A frame lock 134 is provided on the long side bar 131. The secondary frame assembly 120 is detachably installed inside the outer frame 130 through the frame lock 134 and is located below the main buffer net 140.

[0058] The long side bar 131 and the short cross bar 132 are connected by a tee connector 133. The tee connector 133 connects the main space frame assembly 110 to the buffer bracket 300 and the buffer column 200. The tee connector 133 allows the protective device to be installed in multiple combinations during the installation process, thereby extending the overall installation length of the protective device between floors and further improving the strength and stability of the protective device.

[0059] The tee connector 133 includes a front tee connector 133 and a rear tee connector 133. The front tee connector 133 connects the main grid assembly 110 and the buffer bracket 300, and the rear tee connector 133 connects the main grid assembly 110, the buffer column 200 and the buffer bracket 300.

[0060] The short crossbar 132 includes a first short crossbar 136 and a second short crossbar 137, which are hinged together by a limiting hinge 150. The limiting hinge 150 includes a first movable member 151 and a second movable member 152. The first movable member 151 includes a first mounting portion 153 and a first hinge portion 160, and the second movable member 152 includes a second mounting portion 154 and a second hinge portion 170. The first mounting portion 153 is installed inside the first short crossbar 136, and the second mounting portion 154 is installed inside the second short crossbar 137.

[0061] The first hinge portion 160 is provided with a first master pin hole 162, a waist-shaped groove 161 and a limiting pin hole 163. The second hinge portion 170 includes a second master pin hole 172 and a second bolt hole 171. The first hinge portion 160 and the second hinge portion 170 are locked together by a U-shaped member 155. The second bolt hole 171 and the waist-shaped groove 161 are connected by an adjustable bolt (not shown in the figure). By adjusting the bolt, the locking force between the second bolt hole 171 and the waist-shaped groove 161 can be adjusted so that the limiting hinge 150 has a certain supporting force. A certain amount of gravity is required on the main frame assembly 110 to make the limiting hinge bend, and the bending range is within the range defined by the waist-shaped groove 161.

[0062] A U-shaped member 155 passes through a leaf spring 156. Both ends of the leaf spring 156 are slidably mounted on the buffer bracket 300. While providing preload to the limiting hinge 150 and buffering force during bending, it automatically locks the extended state of the leaf spring 156 after compression, thus holding the limiting hinge 150 in its bent state. This maintains the deformation state of the entire buffer net, preventing secondary falls of objects. It can be automatically or manually restored afterward.

[0063] A limiting rod (not shown in the figure) is provided in the middle of the limiting pin hole 163 to limit the bending direction of the outer frame 130. The limiting hinge 150 can only move downwards, so as to prevent the part of the first short crossbar 136 from bending upwards due to the preload of the lower steel plate spring 156, thereby preventing the middle part of the main grid from protruding and improving the stability and safety of the protective device.

[0064] The first buffer net structure includes a main buffer net 140 and a metal rod 141 for threading the net. The main buffer net 140 is threaded onto the metal rod 141, which is threaded into the single buckle 135 and the double-sided buckle of the metal mesh. In the event of damage to the buffer net, where maintenance is inconvenient from a high-rise building, the metal rod 141 can be directly disassembled to replace the entire buffer net, improving maintenance efficiency. The metal rod 141 consists of multiple rods.

[0065] The secondary grid assembly 120 includes a secondary support rod 122, a secondary buffer net 121, and a suspension wire rope 123. The secondary support rod 122 has a uniform array of net buckles 124. The secondary buffer net 121 is connected to the secondary support rod 122 through the net buckles 124. The tee connector 133 is also provided with a secondary buffer grid hanging ear 138. The secondary support rod 122 is connected to the secondary buffer grid hanging ear 138 through the suspension wire rope 123.

[0066] The secondary support rod 122 is disposed within the mesh frame locking buckle 134, which is mounted on the long side rod 131. The mesh frame locking buckle 134 includes a first locking part 191 and a second locking part 192, both of which are mounted on the long side rod 131. The secondary support rod 122 is disposed within the second locking part 192, which also has a narrow-edge slot 193 that confines the secondary support rod 122 within the second locking part 192. When not in use, the secondary buffer net 121 assembly is disposed within the main buffer net 140 assembly, providing a certain support force to the main buffer net 140 and keeping its surface flat and undeformed. When the surface is impacted, these secondary support rods 122 can promptly disengage from the mesh frame locking buckle 134 and unfold into the secondary mesh frame assembly 120, further improving the buffering effect.

[0067] The main grid assembly 110 also includes an escape device 180 and a polycarbonate sheet 142. The escape device 180 and the polycarbonate sheet 142 are installed on the main buffer net 140. The three-way connector 133 is also equipped with a mesh surface limiting component 139. The main buffer net 140 is limited by the mesh surface limiting component 139, the grid lock 134, the metal mesh single buckle 135, and the mesh-penetrating metal rod 141. The polycarbonate sheet 142 is fixedly covered on the main grid. It has very good flexibility and light transmission, as well as anti-aging, corrosion resistance, and fire-retardant properties. It can be used in outdoor working environments for a long time, which is very suitable for our protective device. It can be used to prevent falling personnel from being cut by the wire mesh, and can also be used to shelter from wind and rain and provide light according to the needs of the environment where the buffer device is located.

[0068] The escape device 180 includes an escape hatch 181 and an escape passage 182. The escape hatch 181 is located on the main buffer net 140 near the second short crossbar 137. The secondary net frame assembly 120 also has an opening 125 in the area corresponding to the escape hatch 181. The escape passage 182 is connected below the escape hatch 181. The escape passage 182 can be a hollow cylindrical net cage structure made of flexible material. When not in use, the escape passage 182 is folded between the main net frame assembly 110 and the secondary net frame assembly 120. When in use, the escape passage 182 can be lowered, and personnel can slide down from the escape passage 182. In high-rise buildings, protective devices are generally installed every five floors. The length of the escape passage 182 must be matched to the spacing between the protective devices five floors below.

[0069] The main grid assembly 110 is equipped with a safety belt, which is connected to the long side bar 131. In an emergency, if a person falls onto the protective device, and if the person is afraid of heights or is injured, they can grab or fasten the safety belt and wait for rescue.

[0070] The working principle of the two-stage buffer net structure of this invention is as follows: Installed on the outer wall of a high-rise building, when a person falls, firstly, during the downward deformation of the main grid assembly 110 under pressure, the secondary support rod 122 disengages from the grid lock 134, the secondary grid assembly 120 fully unfolds, and the main grid continues to deform until the main crossbar bends, transferring the impact force to the secondary grid assembly. The main grid assembly 110 provides the first buffer for the person, and then the secondary grid assembly 120 provides the second buffer, greatly reducing the impact force within a limited vertical range. After buffering is completed, under the reaction force of the buffer column 200, the main grid assembly 110 automatically returns to a semi-flat state, completing the rescue. Then, the steel leaf spring is automatically or manually released until the limit hinge resets, and the main grid assembly 110 is reset to a flat, ready-to-go state.

[0071] Please refer to Figure 6-8 and Figure 11-17 The buffer stop post 200 of the present invention shown includes a buffer structure 210 and a stop structure 220. The stop structure 220 is located inside the buffer structure 210. The buffer structure 210 includes a buffer sleeve 213, and the stop structure 220 includes a stop sleeve 226. A first buffer spring 212 is provided between the buffer sleeve 213 and the stop sleeve 226.

[0072] The buffer sleeve 213 has a buffer 211 fixedly installed on its base plate, and the buffer 211 is located inside the bullet stop sleeve 226. The bullet stop sleeve 226 is slidably provided with a bullet stop rod 221. Multiple nuts 224 are evenly installed around the bullet stop rod 221, and bullet stop retaining rings 223 are provided between the nuts 224.

[0073] A main arm 222 is provided above the anti-roll bar 221, and a first buffer spring 212 is located between the main arm 222 and the bottom plate of the buffer sleeve 213. A core end block 225 is provided below the anti-roll bar 221.

[0074] The inner wall of the bullet-stop sleeve 226 is uniformly arrayed with arc-shaped protruding rings 227. The arc-shaped protruding rings 227 are arranged in circles on the inner wall of the bullet-stop sleeve 226. When the bullet-stop retaining ring 223 contacts the arc-shaped protruding rings 227, it will be subject to a certain resistance, so that the buffer post 214 will not suddenly bounce up during the recovery process, but bounce up in segments, thus ensuring the stability of the buffer post 214 during the recovery process.

[0075] The buffer 211 includes a buffer post 214 and a second buffer sleeve 216. The top of the buffer post 214 is provided with a boss, and the core end block 225 is provided with a groove that matches the boss. A second buffer spring 215 is provided between the boss and the second buffer sleeve 216.

[0076] The spring stop ring 223 is an open circular ring with multiple arc-shaped notches 2231 evenly arranged on it. The more arc-shaped notches 2231 there are, the easier it is for the spring stop ring 223 to deform under the pressure of the arc-shaped convex ring 227, so that it will not generate much resistance during descent and can form a layered buffering effect.

[0077] The arc-shaped convex ring 227 includes a first slope 228 and a second slope 229. The slope of the first slope 228 is less than the slope of the second slope 229, and the length of the ramp of the first slope 228 is greater than the length of the ramp of the second slope 229.

[0078] The arc-shaped convex ring 227 and the spring-loaded retaining ring 223 combine to form a structure that is easy to enter but difficult to exit. When the spring-loaded rod 221 descends, that is, when the spring-loaded retaining ring 223 enters the arc-shaped convex ring 227, it is easily deformed upon contact with the first ramp 228, and the deformation force is small. When the spring-loaded rod 221 rises, that is, when the spring-loaded retaining ring 223 exits the arc-shaped convex ring 227, the spring-loaded retaining ring 223 contacts the second ramp 229, where the deformation force is large and the resistance is high. This effectively prevents the spring-loaded rod 221 from suddenly springing up, and provides a certain layered buffering effect during the entry process, further improving the cushioning effect of the structure. The ingenious structural design, after repeated testing, allows for long-term use in outdoor environments.

[0079] The working principle of this cushioning and anti-bounce post is as follows: When a person falls onto the cushioning net 100, the three-way connector 133 drives the main arm 222 to descend, and the main arm 222 drives the sliding post 234 to descend. During the descent, the anti-bounce rod 221 below the main arm 222 contacts the buffer 211 to cushion the impact. After the cushioning is complete, the anti-bounce rod 221 gradually recovers under the action of the first buffer spring 212, and the arc-shaped convex ring 227 contacts the anti-bounce retaining ring 223, causing the anti-bounce rod 221 to rise step by step, avoiding rebound and ensuring the safety of the falling person.

[0080] Please refer to Figure 6-7 and Figure 18-24 The buffer bracket 300 structure of the protective device of the present invention shown includes a first buffer rod 321, a second buffer rod 322 and a third buffer rod 323. The first buffer rod 321 and the second buffer rod 322 are mounted on the buffer column 200 through a first connector 230. The buffer column 200 is fixed on the first base plate 310. One end of the third buffer rod 323 is hinged to the first base plate 310 and the other end is hinged to the second buffer rod 322.

[0081] A three-way connector 133 is provided above the first connector 230 and the second buffer rod 322. A long side rod 131 and a short cross rod are respectively installed at both ends of the three-way connector 133. The long side rod 131 and the short cross rod 132 form a buffer area, and a buffer net 100 is provided in the buffer area.

[0082] The buffer bracket 300 also includes a fourth buffer rod 324, one end of which is hinged to the first connector 230, and the other end is slidably mounted on the third buffer rod 323. This further improves the stability and buffering effect of the buffer bracket 300.

[0083] A leaf spring 156 is provided between the short crossbar 132 and the first buffer rod 321. The two ends of the leaf spring 156 are respectively installed on the first sliding sleeve and the second sliding sleeve. The first sliding sleeve 3211 and the second sliding sleeve are slidably arranged on the first buffer rod 321. A U-shaped member 155 is installed in the middle of the leaf spring 156, and the U-shaped member 155 locks the first movable member 151 and the second movable member 152.

[0084] The first buffer rod 321 is connected to the tee connector 133 via an elbow 325. Both the elbow 325 and the first buffer rod 321 and the tee connector 133 are installed via oblong mounting holes 3251. While reducing installation accuracy, this allows for a shorter lateral displacement of the short crossbar 132, ensuring the stability of the buffer bracket 300.

[0085] The first connecting member 230 includes an arc-shaped mounting plate 231, a side mounting plate 232, a sliding column 234, and a bottom mounting plate 233. The side mounting plate 232, the arc-shaped mounting plate 231, and the bottom mounting plate 233 are all bolted to the buffer sleeve. The sliding column 234 is slidably disposed between the side mounting plates 232 via a third pin. The sliding column 234 is provided with a three-way connector 133, a first fixed end 236, a second fixed end 237, and a first hinge end 238. The buffer bracket 300 is mounted on the first connecting member 230 via the first fixed end 236, the second fixed end 237, and the first hinge end 238.

[0086] The first buffer rod 321 and the second buffer rod 322 are respectively connected to the first fixed end 236 and the second fixed end 237. One end of the fourth buffer rod 324 is hinged to the third pin, and the other end is slidably set on the third buffer rod 323.

[0087] Please refer to Figure 23 and Figure 24 This invention relates to a floor protection device that is used in high-rise buildings. Different intervals are set according to the height of different floors. For floors below 7, the floor protection device is only installed between the first and second floors. For floors above 7, the floor protection device is installed every 5 floors. Multiple floor protection devices are installed on each floor and are connected to each other by a T-connector. The long side rod 131 of the series floor protection devices is hinged to the T-connector 133 by a second connector 1311.

[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A floor protection device, characterized in that... include: A buffer column, installed on the first base plate, is used to buffer the impact of falling objects; The buffer post is a buffer anti-bounce post, which includes a buffer structure and an anti-bounce structure. The anti-bounce structure is located inside the buffer structure. The buffer structure includes a buffer sleeve, and the anti-bounce structure includes an anti-bounce sleeve. A first buffer spring is provided between the buffer sleeve and the anti-bounce sleeve. The buffer structure also includes a buffer, which is installed on the bottom plate of the buffer sleeve and located inside the anti-bounce sleeve. An anti-bounce rod is slidably provided inside the anti-bounce sleeve. Multiple nuts are evenly installed around the anti-bounce rod, and anti-bounce retaining rings are provided between the nuts. The inner wall of the anti-bounce sleeve has an evenly arranged array of arc-shaped convex rings. The anti-bounce retaining ring is an open circular ring with multiple evenly arranged arc-shaped notches. A buffer bracket is installed on the buffer column and the first base plate, including a first buffer rod, a second buffer rod and a third buffer rod. The first buffer rod and the second buffer rod are installed on the buffer stop column through a first connector. One end of the third buffer rod is hinged to the first base plate and the other end is hinged to the second buffer rod, thereby forming a stable support structure in the shape of a triangular pyramid. A buffer net is provided, employing a two-stage buffer net structure. The two-stage buffer net structure includes a main frame assembly and a secondary frame assembly. The main frame assembly includes an outer frame and a main buffer net. The outer frame includes long side bars and short cross bars connected by tee connectors. The short cross bars include a first short cross bar and a second short cross bar, which are hinged together by a limiting hinge. The secondary frame assembly is located below the main buffer net and is used to support the main buffer net.

2. The floor protection device according to claim 1, characterized in that, The limiting hinge includes a first movable member and a second movable member, the first movable member being installed inside the first short crossbar and the second movable member being installed inside the second short crossbar.

3. The floor protection device according to claim 2, characterized in that, The first movable part is provided with a first main pin hole, a waist-shaped groove and a limiting pin hole. The second movable part includes a second main pin hole and a second bolt hole. The first main pin hole and the second main pin hole are locked by a U-shaped part, and the second bolt hole and the waist-shaped groove are connected by bolts.

4. The floor protection device according to claim 3, characterized in that, The arc-shaped convex ring includes a first slope and a second slope, wherein the slope of the first slope is less than the slope of the second slope, and the length of the ramp of the first slope is greater than the length of the ramp of the second slope.

5. The floor protection device according to claim 1, characterized in that, The buffer bracket includes a first buffer rod, a second buffer rod, and a third buffer rod. The first and second buffer rods are mounted on a buffer column via a first connector. The buffer column is fixed to a first base plate. One end of the third buffer rod is hinged to the first base plate, and the other end is hinged to the second buffer rod. The first connector and the second buffer rod are each provided with a three-way connector above them. A long side rod and a short cross rod are respectively installed at both ends of the three-way connector. The long side rod and the short cross rod form a region, and the buffer net is provided in the region.

6. The floor protection device according to claim 5, characterized in that, The long side rod is hinged to the tee connector via a second connector.

7. A floor protection device for high-rise buildings, characterized in that... Includes the floor protection device as described in any one of claims 1-6, wherein the floor protection devices are connected in series in pairs via tee connectors.

8. The floor protection device according to claim 7, characterized in that, The vertical spacing between the aforementioned floor protection devices is at least the height of two floors.

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