CN115837129A

CN115837129A - Floor protection device and application thereof

Info

Publication number: CN115837129A
Application number: CN202211518015.8A
Authority: CN
Inventors: 石国龙; 李雨泽
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-03-24

Abstract

The invention discloses a floor protection device and application thereof. The buffering post adopts the structure that the buffering ends the bullet post, and the buffering support adopts a plurality of triangular pyramid structures, and the buffering net adopts second grade buffering net structure, has good structural stability and buffering effect. The safety protection device is applied to the high-rise protection device to effectively protect falling personnel. In addition, an emergency escape passage is further arranged, so that the escape can be carried out through a protective device on the periphery of the floor under the emergency conditions of high-rise fire and the like.

Description

Floor protection device and application thereof

Technical Field

The invention belongs to the field of floor protection devices, and particularly relates to a floor protection device and application thereof.

Background

With the increasing of the study pressure of students at present, the physical and mental health problems of teenagers are always the focus of attention of families, schools and society, and although measures are taken by all social circles to strengthen the thought and moral construction of the teenagers, the campus falling events occur frequently, in order to prevent the falling of the students, some schools are provided with cameras in the campus for real-time monitoring, the patrol intensity of campus security is increased, but the problems of large monitoring range, insufficient intensity and low efficiency exist due to the adoption of manual monitoring.

In order to prevent the accidents from appearing again, windows, balconies, corridors and the like of student activity concentration places such as school teaching buildings, student dormitories and the like are all sealed by using metal guard railings and protective nets, teachers and students study in a super birdcage and live the same, and in the past, potential harm to physical and mental growth of students cannot be measured.

In addition, it is also necessary for floor protection of large-scale enterprises or labor-intensive enterprises. The enterprises are dense in personnel, most of the employees work and live in a centralized mode, and the fire safety of the enterprises and the life safety of the employees are guaranteed to be all the same. In recent years, large enterprises such as Fushikang and Biedi have continuous staff high-rise falling accidents; high-rise falling accidents also happen in special crowd places such as hospitals and nursing homes; countless reasons for falling objects of high buildings cause the death of pedestrians on the ground;

in addition, under the condition of taking place high building conflagration, people's the route of fleing is comparatively single, can only flee through the stair, when certain floor intensity of a fire is great, can lead to the route of fleing to be blocked up, and it is necessary to design a new mode of fleing, sets up the passageway of fleing at the outside wall of building suitable position, can help personnel to flee fast. It is therefore necessary to design a protection device to be installed between the outer floors of a high building.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a floor protection device.

The technical scheme of the invention is realized as follows:

a floor protection device, comprising:

the buffer column is arranged on the first bottom plate and used for buffering the impact force of falling objects;

the buffer bracket is arranged on the buffer column and the first bottom plate, is used for generating deformation to bear impact force, and comprises a long side rod and a short cross rod, and the long side rod and the short cross rod form a buffer area;

and the buffer net is positioned in the buffer area, is connected to the buffer bracket through a steel wire rope and is used for buffering the impact force of falling objects.

In the floor protection device, the buffer net adopts a secondary buffer net structure, the secondary buffer net structure comprises a main net frame component and an auxiliary net frame component, the main net frame component comprises an outer frame and a main buffer net, the outer frame comprises a long side rod and a short transverse rod, the short transverse rod comprises a first short transverse rod and a second short transverse rod, the first short transverse rod and the second short transverse rod are hinged through a limiting hinge, a net frame lock catch is arranged on the long side rod, the auxiliary net frame component is positioned below the main buffer net and used for supporting the main buffer net, and the auxiliary net frame component can be arranged in the outer frame in a falling mode through the net frame lock catch.

In the floor protection device, the limit hinge comprises a first movable piece and a second movable piece, the first movable piece is installed in the first short cross rod, and the second movable piece is installed in the second short cross rod.

In the floor protection device, the first movable part is provided with a first main pin hole, a kidney-shaped groove and a limit pin hole, the second movable part comprises a second main pin hole and a second bolt hole, the first main pin hole and the second main pin hole are locked through a 20866shaped part, and the second bolt hole and the kidney-shaped groove are connected through a bolt.

In the floor protection device, the buffer column adopts a buffer bullet stopping column, the buffer bullet stopping column comprises a buffer structure and a bullet stopping structure, the bullet stopping structure is positioned in the buffer structure, the buffer structure comprises a buffer sleeve, the bullet stopping structure comprises a bullet stopping sleeve, and a first buffer spring is arranged between the buffer sleeve and the bullet stopping sleeve;

buffer structure still includes the buffer, the buffer is installed buffer sleeve's bottom plate just is located end bullet sleeve is interior, slidable is equipped with only plays the pole in ending the bullet sleeve, evenly install a plurality of nuts around ending the pole, be equipped with between the nut and end the bullet snap ring, it has the arc bulge loop to end the even array of telescopic inner wall of playing.

In the floor protection device, the bullet-stopping snap ring is an unclosed circular ring, and a plurality of arc-shaped notch grooves are uniformly arrayed on the bullet-stopping snap ring.

In the floor guard of the present invention, the arc-shaped collar includes a first slope and a second slope, a slope of the first slope is smaller than a slope of the second slope, and a slope length of the first slope is longer than a slope length of the second slope.

In the floor protection device of the invention, the buffer support comprises a first buffer rod, a second buffer rod and a third buffer rod, the first buffer rod and the second buffer rod are arranged on a buffer column through a first connecting piece, the buffer column is fixed on a first bottom plate, one end of the third buffer rod is hinged on the first bottom plate, the other end of the third buffer rod is hinged on the second buffer rod,

the buffer net is characterized in that a three-way connecting piece is arranged above the first connecting piece and the second buffer rod, a long side rod and a short cross rod are respectively arranged at two ends of the three-way connecting piece, the long side rod and the short cross rod form an area, and the buffer net is arranged in the area.

In the floor protection device, the buffer support further comprises a fourth buffer rod, one end of the fourth buffer rod is hinged to the first connecting piece, and the other end of the fourth buffer rod is slidably arranged on the third buffer rod.

In the floor protection device, the first connecting piece comprises 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 mounted on the buffer sleeve through bolts, the sliding column is slidably arranged between the side mounting plates through a third pin shaft, the sliding column is provided with the three-way connecting piece, a first fixed end, a second fixed end and a first hinged end, and the buffer support is mounted on the first connecting piece through the first fixed end, the second fixed end and the first hinged end.

In the floor protection device, 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 shaft, and the other end of the fourth buffer rod is slidably arranged on the third buffer rod.

In the floor protection device of the present invention, the long side bar is hinged to the three-way connection member through a second connection member.

The floor protection device for the high building is characterized by comprising the floor protection device, wherein the floor protection device is connected in series between every two floor protection devices through a three-way connecting piece.

As a further development of the invention, the vertical spacing between the floor guards is at least the height of two floors.

The floor protection device has the following beneficial effects:

(1) The secondary buffer net structure is arranged, the maximum buffer force is provided within a limited space range, and the maximum buffer force and the net rack bearing force can be provided to protect falling objects. In addition, an emergency escape passage is further arranged, so that the escape can be carried out through a protective device on the periphery of the floor under the emergency conditions of high-rise fire and the like.

(2) Adopt buffering to end bullet post structure, when having good buffering effect, can avoid the buffering post to bounce suddenly, firm reliable can use for a long time, especially uses effectively protecting the personnel's that fall safety in high building protector.

(3) The buffering support adopts the structure of a plurality of triangular pyramids, improves the fastness of buffering support greatly, makes it have good stability and buffering effect in shorter stroke.

Drawings

Fig. 1 is a schematic structural view of such a floor guard of the present invention;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a schematic view of the variation of FIG. 1 showing the separation of the secondary rack assembly from the primary rack assembly;

FIG. 4 is a plan view of FIG. 1, showing the structures of the endurance plate, the escape opening and the main buffering net;

FIG. 5 is a bottom view of FIG. 1, illustrating a schematic view of a secondary rack assembly;

FIG. 6 is a perspective view of FIG. 1;

FIG. 7 is an exploded view of the check hinge of FIG. 6;

FIG. 8 is an enlarged exploded view of part A of FIG. 6;

FIG. 9 is a schematic view of the net mount latch of FIG. 6;

FIG. 10 is another schematic view of FIG. 9;

FIG. 11 is a schematic structural view of the damping and bullet-stopping rod of FIG. 6;

FIG. 12 isbase:Sub>A schematic sectional view taken along line A-A of FIG. 11;

FIG. 13 is a cross-sectional view of the suspension sleeve of FIG. 12;

FIG. 14 is an enlarged view of section A of FIG. 12;

FIG. 15 is a schematic view of the structure of the stop snap ring of FIG. 12;

FIG. 16 is a schematic view of the structure of the connector of FIG. 6;

FIG. 17 is an exploded view of FIG. 16;

FIG. 18 is a schematic view of the buffer bracket of FIG. 6;

FIG. 19 is a bottom view of FIG. 18;

FIG. 20 is a perspective view of FIG. 18;

FIG. 21 is an enlarged view of the portion A of FIG. 18, mainly illustrating the connection structure of the elbow portion;

FIG. 22 is an exploded view of FIG. 18, omitting the structure of the cushion post and the first connecting member;

FIG. 23 is a schematic view of the alternate construction of FIG. 18, primarily illustrating a different tee fitting configuration;

fig. 24 is an enlarged schematic view of a portion B of fig. 23.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

The floor guard of the present invention, as shown in fig. 1 to 24, includes a buffer post 200, a buffer bracket 300, and a buffer net 100.

Referring to fig. 1 to 10, the buffer net 100 of the present invention employs a secondary buffer net structure, the secondary buffer net structure includes a main net frame assembly 110 and a sub net frame assembly 120, the main net frame assembly 110 and the sub net frame assembly 120, the main net frame assembly 110 is mounted on a buffer bracket 300, the buffer bracket 300 is mounted on a buffer column 200, the main net frame assembly 110 includes an outer frame 130 and a main buffer net 140, the outer frame 130 includes a long side rod 131 and a short side rod 132, a limit hinge 150 is disposed between the short side rods 132, a net frame lock 134 is disposed on the long side rod 131, and the sub net frame assembly 120 is detachably disposed in the outer frame 130 through the net frame lock 134 and is located below the main buffer net 140.

The long side rods 131 and the short cross rods 132 are connected by a three-way connecting piece 133. A three-way connection 133 connects the main rack assembly 110 with the buffer bracket 300 and the buffer post 200. The three-way connection 133 allows the guard to be assembled in a plurality of ways during installation to extend the length of the installation of the guard between floors, and further improve the strength and stability of the guard.

The three-way connector 133 includes a front three-way connector 133 and a rear three-way connector 133, the front three-way connector 133 connects the main frame assembly 110 and the buffer bracket 300, and the rear three-way connector 133 connects the main frame assembly 110, the buffer column 200 and the buffer bracket 300.

The short cross bar 132 comprises a first short cross bar 136 and a second short cross bar 137, and the first short cross bar 136 and the second short cross bar 137 are hinged through a limit hinge 150. The limit hinge 150 includes a first moving member 151 and a second moving member 152, the first moving member 151 includes a first mounting portion 153 and a first hinge portion 160, the second moving member 152 includes a second mounting portion 154 and a second hinge portion 170, the first mounting portion 153 is mounted in the first short crossbar 136, and the second mounting portion 154 is mounted in the second short crossbar 137.

The first hinge part 160 is provided with a first main pin hole 162, a kidney-shaped groove 161 and a limit pin hole 163, the second hinge part 170 comprises a second main pin hole 172 and a second bolt hole 171, the first hinge part 160 and the second hinge part 170 are locked through a 20866shaped element 155, the second bolt hole 171 is connected with the kidney-shaped groove 161 through an adjustable bolt (not shown in the figure), the locking force between the second bolt hole 171 and the kidney-shaped groove 161 is adjusted through the adjustable bolt, so that the limit hinge 150 has a certain supporting force, the limit hinge can be bent only on the main frame assembly 110 by a certain gravity, and the bending range is within the range limited by the kidney-shaped groove 161.

20866the shaped piece 155 penetrates through a steel plate spring 156, and two ends of the steel plate spring 156 are slidably arranged on the buffer bracket 300, so that the extension state of the steel plate spring 156 after being pressed can be automatically locked while providing pre-pressure for the limit hinge 150 and buffer force in the bending process, the limit hinge 150 is pulled to keep the bending state, the deformation state of the whole buffer net can be maintained, and the falling object is prevented from falling again. The recovery can be automatic or manual after the fact.

A limiting rod (not shown) is arranged in the middle of the limiting pin hole 163 and used for limiting the bending direction of the outer frame 130, the limiting hinge 150 can only move downwards, and the situation that the limiting hinge is bent upwards due to the pre-pressure of the lower leaf spring 156 of the part of the first short cross rod 136 is avoided, so that the middle part of the main frame is prevented from protruding, and the stability and the safety of the protection device are improved.

The first buffer net structure comprises a main buffer net 140 and a net penetrating metal rod 141, wherein the main buffer net 140 is connected to the net penetrating metal rod 141 in a penetrating mode, and the net penetrating metal rod 141 is connected to the metal net single buckle 135 and the metal net double-side buckle in a penetrating mode. Under the condition that the damage appears in the buffering net, inconvenient maintaining the buffering net in the high building, can directly dismantle and wear net metal pole 141, change whole buffering net, improve maintenance efficiency. The net-passing metal rod 141 is composed of a plurality of rods.

The auxiliary net rack assembly 120 comprises an auxiliary support rod 122, an auxiliary buffer net 121 and a hanging steel wire rope 123, net buckles 124 are evenly arrayed on the auxiliary support rod 122, the auxiliary buffer net 121 is connected to the auxiliary support rod 122 through the net buckles 124, a secondary buffer net rack hanging lug 138 is further arranged on the three-way connecting piece 133, and the auxiliary support rod 122 is connected to the secondary buffer net rack hanging lug 138 through the hanging steel wire rope 123.

The auxiliary support rod 122 is arranged in the net rack lock catch 134, the net rack lock catch 134 is arranged on the long-side rod 131, the net rack lock catch 134 comprises a first lock catch portion 191 and a second lock catch portion 192, the first lock catch portion 191 and the second lock catch portion are both arranged on the long-side rod 131, the auxiliary support rod 122 is arranged in the second lock catch portion 192, a narrow-side clamping groove 193 is arranged in the second lock catch portion 192, and the auxiliary support rod 122 is limited in the second lock catch portion 192. When the auxiliary buffer net 121 is not used, the auxiliary buffer net 121 is arranged in the main buffer net 140, a certain supporting force is provided for the main buffer net 140, the net surface of the main buffer net 140 is kept flat and does not deform, when the net surface is impacted, the auxiliary supporting rods 122 can be timely interlocked and separated from the net rack lock catches 134, the auxiliary supporting rods are unfolded to form the auxiliary net rack assembly 120, and the buffer effect is further improved.

Main rack assembly 110 still includes escape device 180 and endurance plate 142, escape device 180 and endurance plate 142 set up on main buffering net 140, still be equipped with net face locating part 139 on tee junction spare 133, main buffering net 140 is injectd at net face locating part 139, rack hasp 134, metal mesh list is detained 135 and is worn on the net metal pole 141, endurance plate 142 is fixed to be covered on main rack, have very good pliability and light transmissivity, still have the ageing resistance, corrosion-resistant and fire-retardant characteristic, can be in outdoor operational environment for a long time, be fit for our protector and use very much, can be used for avoiding falling personnel to be cut by the wire net, can also be used for keeping out the wind and keeping out the rain and daylighting etc. according to the needs of the environment that buffer located.

The escape device 180 comprises an escape opening 181 and an escape passage 182, the escape opening 181 is arranged on the main buffer net 140 close to one side of the second short cross bar 137, an opening 125 is also arranged in the area of the auxiliary net frame assembly 120 corresponding to the escape opening 181, the escape passage 182 is connected below the escape opening 181, and the escape passage 182 can be of a hollow cylindrical mesh cage structure made of flexible materials. When the escape passage 182 is folded between the main frame assembly 110 and the sub-frame assembly 120 when not in use, the escape passage 182 can be put down and a person slides down from the escape passage 182 when in use. On high buildings, protective devices are typically installed at five floor levels, and escape route 182 is of a length to ensure that the spacing between the protective devices located five floors below is matched.

The safety belt is arranged on the main frame component 110 and connected to the long side rod 131, and when people fall onto the protection device in an emergency process, if the patients are terrorised or injured, the safety belt can be caught or fastened to wait for rescue.

The working principle of the secondary buffer network structure is as follows: install the outside wall at high building, when personnel fall, at first, main rack subassembly 110 pressurized buffering deformation process down, vice bracing piece 122 drops from rack hasp 134, and vice rack subassembly 120 expandes completely, and main rack continues to warp to main horizontal pole and bends to shift the impact force to the vice rack on. The primary frame assembly 110 cushions the crew a first time and the secondary frame assembly 120 cushions the crew a second time, greatly reducing the impact force within a limited vertical range. After buffering, under the reaction force of the buffering column 200, the main frame assembly 110 automatically returns to a semi-flat state for rescue, and then automatically or manually releases the leaf spring until the limiting hinge returns to the original position, and then returns the main frame assembly 110 to a flat standby state.

Referring to fig. 6-8 and 11-17, the buffering bullet-stopping column 200 of the present invention includes a buffering structure 210 and a bullet-stopping structure 220, wherein the bullet-stopping structure 220 is located inside the buffering structure 210, the buffering structure 210 includes a buffering sleeve 213, the bullet-stopping structure 220 includes a bullet-stopping sleeve 226, and a first buffering spring 212 is disposed between the buffering sleeve 213 and the bullet-stopping sleeve 226.

The bottom plate of the buffer sleeve 213 is fixedly provided with a buffer 211, the buffer 211 is positioned in the bullet-stopping sleeve 226, a bullet-stopping rod 221 is slidably arranged in the bullet-stopping sleeve 226, a plurality of nuts 224 are uniformly arranged around the bullet-stopping rod 221, and a bullet-stopping snap ring 223 is arranged between the nuts 224.

A main force arm 222 is arranged above the elastic stopping rod 221, the first buffer spring 212 is positioned between the main force arm 222 and the bottom plate of the buffer sleeve 213, and a core end fixture block 225 is arranged below the elastic stopping rod 221.

The even array of the inner wall of the bullet stopping sleeve 226 has the arc bulge loop 227, the arc bulge loop 227 is arranged on the inner wall of the bullet stopping sleeve 226 in a circle, and the in-process of the contact between the bullet stopping snap ring 223 and the arc bulge loop 227 can be subjected to certain resistance, so that the buffer column 214 cannot be popped up suddenly in the recovery process, but one section of bouncing is realized, and the stability of the buffer column 214 in the recovery process is ensured.

The buffer 211 comprises a buffer column 214 and a second buffer sleeve 216, a boss is arranged at the top of the buffer column 214, a groove matched with the boss is arranged in the core end fixture block 225, and a second buffer spring 215 is arranged between the boss and the second buffer sleeve 216.

The bullet-stopping snap ring 223 is an unclosed circular ring, and a plurality of arc-shaped notch grooves 2231 are uniformly arrayed on the bullet-stopping snap ring 223. The more the arc-shaped notch grooves 2231 are, the more easily the bullet-stopping snap ring 223 is extruded by the arc-shaped convex ring 227 to deform, so that the larger resistance can not be formed in the descending process, and the layer-by-layer buffering effect can be formed.

The arc-shaped convex ring 227 includes a first slope 228 and a second slope 229, the slope of the first slope 228 is smaller than the slope of the second slope 229, and the slope length of the first slope 228 is longer than the slope length of the second slope 229.

The arc-shaped convex ring 227 and the bullet-stopping snap ring 223 are combined to form a structure which is easy to enter and difficult to exit, when the bullet-stopping rod 221 descends, namely, when the bullet-stopping snap ring 223 enters the arc-shaped convex ring 227, the contact between the bullet-stopping snap ring 223 and the first slope 228 is easy to deform, the deformation force is small, when the bullet-stopping rod 221 ascends, namely, when the bullet-stopping snap ring 223 exits the arc-shaped convex ring 227, the bullet-stopping snap ring 223 is in contact with the second slope 229, the deformation force is large, and the resistance is large. Effectively avoid only bouncing rod 221 suddenly, and have certain effect of buffering layer upon layer in the entering process, further improve the cushioning effect of structure. The structural design is ingenious, and the outdoor environment can be used for a long time through repeated tests.

The working principle of the buffering bullet-stopping column of the invention is as follows: when a person falls on the buffer net 100, the three-way connecting piece 133 drives the main force arm 222 to descend, the main force arm 222 drives the sliding column 234 to descend, and in the descending process, the elastic stopping rod 221 below the main force arm 222 is in contact with the buffer 211 to buffer impact force. After the buffering, end bullet pole 221 and resume gradually under first buffer spring 212's effect, arc bulge loop 227 makes with end bullet snap ring 223 contact and ends bullet pole 221 and rise step by step, avoids appearing the phenomenon of bounce-back, guarantees the personnel's that fall safety.

Referring to fig. 6-7 and 18-24, the buffering bracket 300 structure of the protection device of the present invention includes a first buffering rod 321, a second buffering rod 322 and a third buffering rod 323, wherein the first buffering rod 321 and the second buffering rod 322 are mounted on the buffering post 200 through a first connecting member 230, the buffering post 200 is fixed on the first base plate 310, and one end of the third buffering rod 323 is hinged to the first base plate 310, and the other end is hinged to the second buffering rod 322.

The three-way connecting piece 133 is arranged above the first connecting piece 230 and the second buffering rod 322, the long side rod 131 and the short transverse rod are respectively arranged at two ends of the three-way connecting piece 133, the long side rod 131 and the short transverse rod 132 form a buffering area, and the buffering net 100 is arranged in the buffering area.

The buffer bracket 300 further includes a fourth buffer rod 324, one end of the fourth buffer rod 324 is hinged to the first connecting member 230, and the other end is slidably disposed on the third buffer rod 323. Further improving the stability and cushioning effect of the cushioning support 300.

A steel plate spring 156 is arranged between the short cross bar 132 and the first buffer rod 321, two ends of the steel plate spring 156 are respectively arranged on the first sliding sleeve and the second sliding sleeve, the first sliding sleeve 3211 and the second sliding sleeve are arranged on the first buffer rod 321 in a sliding manner, and the middle part of the steel plate spring 156 is provided with a 20866-shaped piece 155 and a 20866-shaped piece 155 for locking the first movable piece 151 and the second movable piece 152.

The first buffer rod 321 is connected with the three-way connector 133 through the elbow portion 325, and the elbow portion 325, the first buffer rod 321 and the three-way connector 133 are installed through the waist-shaped installation hole 3251. While reducing the mounting accuracy, the lateral displacement of the short crossbar 132 can be allowed to be shortened by a certain distance, ensuring the stability of the buffer bracket 300.

The first connecting member 230 comprises an arc-shaped mounting plate 231, a side mounting plate 232, a sliding column 234 and a bottom mounting plate 233, wherein the side mounting plate 232, the arc-shaped mounting plate 231 and the bottom mounting plate 233 are all mounted on the buffer sleeve through bolts, the sliding column 234 is slidably arranged between the side mounting plates 232 through a third pin shaft, a three-way connecting member 133, a first fixed end 236, a second fixed end 237 and a first hinged end 238 are arranged on the sliding column 234, and the buffer bracket 300 is mounted on the first connecting member 230 through the first fixed end 236, the second fixed end 237 and the first hinged end 238.

The first buffer rod 321 and the second buffer rod 322 are respectively connected to the first fixing end 236 and the second fixing end 237, one end of the fourth buffer rod 324 is hinged to the third pin, and the other end is slidably disposed on the third buffer rod 323.

Referring to fig. 23 and 24, the floor protection device of the present invention is applied to a high building, and different intervals are set according to the heights of different floors, and the floor protection device is only installed between the first floor and the second floor below 7 floors of the floor; more than 7 stories, every 5 stories set up the floor protector, every layer sets up a plurality of floor protectors, connect through the tee junction spare each other, and the long limit pole 131 of the floor protector of establishing ties connects through the second, 1311 articulates on tee junction spare 133.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A floor guard, comprising:

and the buffering net is positioned in the buffering area, is connected to the buffering support through a steel wire rope and is used for buffering the impact force of falling objects.

2. The floor protection device of claim 1, wherein the buffering net adopts a secondary buffering net structure, the secondary buffering net structure comprises a main net frame assembly and a secondary net frame assembly, the main net frame assembly comprises an outer frame and a main buffering net, the outer frame comprises a long side rod and a short side rod, the short side rod comprises a first short side rod and a second short side rod, the first short side rod and the second short side rod are hinged through a limiting hinge, a net rack lock catch is arranged on the long side rod, the secondary net frame assembly is located below the main buffering net and used for supporting the main buffering net, and the main buffering net can be arranged in the outer frame in a falling mode through the net rack lock catch.

3. The floor guard of claim 2, wherein the limit hinge includes a first moveable member mounted within the first short cross bar and a second moveable member mounted within the second short cross bar.

4. The floor protection device of claim 3, wherein the first movable member is provided with a first main pin hole, a kidney-shaped groove and a limit pin hole, the second movable member comprises 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 20866shaped member, and the second bolt hole and the kidney-shaped groove are connected by a bolt.

5. The floor protection device of claim 1, wherein the buffer column is a buffer bullet-stopping column, the buffer bullet-stopping column comprises a buffer structure and a bullet-stopping structure, the bullet-stopping structure is located inside the buffer structure, the buffer structure comprises a buffer sleeve, the bullet-stopping structure comprises a bullet-stopping sleeve, and a first buffer spring is arranged between the buffer sleeve and the bullet-stopping sleeve;

buffer structure still includes the buffer, the buffer is installed buffer sleeve's bottom plate just is located end play sleeve is interior, end slidable in the play sleeve is equipped with and ends the bullet pole, end evenly to install a plurality of nuts around the bullet pole, be equipped with between the nut and end the bullet snap ring, end the even array of telescopic inner wall of playing and have the arc bulge loop, end the bullet snap ring and be unclosed ring, it has a plurality of arc breach grooves to end even array on the bullet snap ring.

6. The floor guard of claim 5, wherein the arcuate collar includes a first ramp and a second ramp, the slope of the first ramp being less than the slope of the second ramp, and the ramp length of the first ramp being greater than the ramp length of the second ramp.

7. The floor guard of claim 1, wherein the bumper bracket includes a first bumper bar, a second bumper bar, and a third bumper bar, the first and second bumper bars being mounted to a bumper post by a first connector, the bumper post being fixed to the first base plate, the third bumper bar having one end hinged to the first base plate and the other end hinged to the second bumper bar,

8. A floor guard according to claim 7 in which the long side bar is hinged to the three way connection by a second connection.

9. A floor protection device for high buildings, characterized in that it comprises a floor protection device according to any of claims 1-8, said floor protection device being connected in series two by a three-way connection.

10. A floor guard according to claim 9 wherein the vertical spacing between floor guards is at least two stories high.