Safety picking net for preventing falling of external scaffold

Abstract

The invention relates to the technical field of construction site safety protection, and discloses an external scaffold anti-falling safety picking net which comprises a plurality of connecting pieces fixed to the outer sides of the upper outer wall and the lower outer wall of a building, balance pipes are detachably connected between the connecting pieces, and a plurality of first pulleys are fixedly installed on the balance pipes located on the outer side of the upper outer wall. A plurality of fixing discs are arranged on the portion, located on the outer side of the lower outer wall, of the balance pipe, every two adjacent fixing discs form a group, a steel block is installed between each group of fixing discs, a plurality of square holes are annularly formed in each fixing disc, and inclined steel pipes are connected to the steel blocks through mortises and tenons. The safety net is separated from the inclined steel pipes through the first guide rails and the second guide rails, and then the safety net is arched through the second pulleys and the first pulleys, so that grids can be mutually pulled when the safety net is stressed, the stress is relatively uniform, the tension of the safety net can be effectively exerted, and the safety net is prevented from being damaged. The safety performance of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction site safety protection, in particular to a safety cantilever net for preventing an external scaffold from falling. Background Art

[0002] Safety nets are protective nets set up under or beside high-altitude construction equipment during installation or skill performances to prevent accidents caused by falling people or objects. Safety nets are composed of a net body, side ropes, tie ropes and tendon ropes. The net body is woven with net ropes and has diamond or square meshes.

[0003] The existing safety cantilever net method and installation method are: fasteners are set at the bottom of the diagonal brace steel pipe to connect with the external frame. (Right-angle fasteners or rotating fasteners); then the diagonal brace steel pipe is erected, and then one end of the net is hung on the diagonal brace crossbar, and the other end is hung on the external frame crossbar (the width of the net is hung according to the required width after the diagonal brace is unfolded 45 degrees based on experience), and the iron wire is tied to the crossbar; then the diagonal brace is manually pulled down to 45 degrees by the iron wire, among which: when the diagonal brace is fixed to the external frame crossbar with a right-angle fastener, the fastener screws need to be loosened before it can be turned down; when the diagonal brace is fixed with a rotating fastener, it can be directly down; finally, the iron wire is tied to the external frame. The frame is ultimately stressed by the wire or the rope of the safety net; however, the existing structure will have the following defects: when the diagonal bracing system is directly connected to the external frame, the external frame directly bears the falling load of the diagonal bracing system itself and the upper falling objects, and because the end of the diagonal bracing rod is far from the main node of the scaffolding, the safety risk of the external frame is increased; and because the area of ​​the safety cantilever net is large, under the action of wind load, the force on the external frame is further increased, which will also increase the safety risk of the external frame, and the safety cantilever net is also prone to deviation under the action of wind load. In addition, when the diagonal bracing rod is fixed to the cross bar of the external frame, a right-angle fastener is required. The right-angle fastener needs to be loosened and pointed outward at 45 degrees, which poses a risk of slipping; for this reason, we propose a safety cantilever net for preventing external scaffolding from falling. Summary of the invention

[0004] The object of the present invention is to provide a safety cantilever net for preventing an external scaffold from falling, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a safety cantilever net for preventing an external scaffold from falling, comprising a plurality of connectors fixed to the outer sides of the upper and lower outer walls of a building, a balance pipe being detachably connected between the plurality of connectors, a plurality of first pulleys being fixedly installed on the balance pipe located on the outer side of the upper outer wall, a plurality of fixed disks being arranged on the balance pipe located on the outer side of the lower outer wall, two adjacent fixed disks forming a group, and a steel block being installed between each group of fixed disks, a plurality of square holes being arranged in an annular manner on each fixed disk, an inclined steel pipe being connected to the steel block by mortise and tenon joints, a second guide rail being slidably installed on one end of the inclined steel pipe, and a second guide rail being slidably installed on one end of the second guide rail. A second pulley is fixedly installed on the top of the guide rail, and a plurality of second guide rails are slidably connected to a safety net, two ends of one side of the safety net are fixedly connected to guide rods, and the other end of the safety net is slidably connected to a plurality of connecting rods, and a recoil spring is connected to the connecting rod, and one end of each recoil spring is fixedly connected to the first connecting rope, and a second motor is fixedly installed on the top of the lower outer wall, and a first gear is sleeved on the output shaft of the second motor. The lower outer wall is rotatably connected to the second gear near the second motor, and a first winding roller is fixedly connected to one side of the second gear, and one end of the first connecting rope is fixedly connected to the guide rod, and the other end is coiled on the first winding roller.

[0006] Preferably, a plurality of placement plates are placed on the top of the lower outer wall, each fixing plate extends outward to form a right-angle end, two right-angle ends are matched with the placement plate, and the placement plate and the right-angle end are fixed together by bolts.

[0007] Preferably, each inclined steel tube is fixedly connected to a first guide rail, a square groove is provided at the bottom of one end of the inclined steel tube, the end sections of the first guide rail and the second guide rail are parallel to each other, a sliding groove is provided near the bottom of the second guide rail, a steel groove is slidably connected to the sliding groove, the steel groove is slidably connected to the first guide rail, and the steel groove and the second guide rail are fixedly connected together.

[0008] Preferably, both sides of the first guide rail and the second guide rail are in a recessed state, and the guide rod slides on one side of the second guide rail.

[0009] Preferably, a control cabinet is fixedly installed on the top of the lower outer wall, and a first motor is fixedly installed on the top of the lower outer wall near the control cabinet. The second winding roller is sleeved on the output shaft of the first motor, and a second connecting rope is fixedly connected to the second winding roller. The second connecting rope passes through the recoil spring, bypasses the first pulley and the square hole and is fixedly connected together.

[0010] Preferably, a counterweight block is suspended on each first connecting rope, and the counterweight block is movable between the first pulley and the fixed plate. A connecting tube is fixedly connected to the counterweight block through a rope, and a secondary safety net is fixedly connected to the outside of the connecting tube. One end of the secondary safety net is fixedly connected to the guide rod and slides between the first guide rail and the second guide rail following the safety net.

[0011] Preferably, a spring limiter is fixedly mounted on the top of each second guide rail, one end of the spring limiter protrudes from the side of the second guide rail, and when the guide rod passes through the spring limiter, the spring limiter is driven to be compressed, and the spring limiter is used to limit the guide rod.

[0012] Preferably, dustpans are inserted into the multiple inclined steel pipes on the sides facing the outer wall.

[0013] Preferably, a threaded steel pipe passes through each connecting piece, and the threaded steel pipe and the balancing pipe are connected by bolts. Fixed rods are fixedly connected to both ends of the inner side of the connecting piece, and reinforcing ribs are fixedly connected to the middle part of the inner side of the connecting piece. Multiple cantilever keys are fixedly installed on the outer sides of the upper and lower outer walls, and each cantilever key is located at the bottom of the balancing pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The safety net of the present invention is entirely laid between the first pulley and the second pulley. Since the second motor has a certain torque, the safety net will be more secure after installation. The safety net is separated from the first guide rail, the second guide rail and the inclined steel pipe, and the safety net is arched by the second pulley and the first pulley, so that when the safety net is stressed, the grids can pull each other, so that the stress is relatively even, so that the safety net can effectively exert its tension and improve the safety performance of the device; 2. When the safety net is stressed, if the safety net is damaged, the construction waste will fall on the auxiliary safety net. When the auxiliary safety net is stressed, the auxiliary safety net will drive the counterweight block to descend. The descending counterweight block will make the return spring contact with the first pulley, so that the return spring is compressed. The safety net will add a part of the mesh reserved on the second guide rail to the damaged area to prevent the damaged area from being more likely to be torn into pieces after contacting the construction waste again. Therefore, with the auxiliary safety net, the safety performance of the device is improved. 3. After the inclined steel pipe is installed, the second connecting rope can be passed through the first pulley and the second pulley, so that the second connecting rope can pull the inclined steel pipe to prevent the placement plate from falling to the ground along the lower outer wall after being subjected to force. In addition, when the inclined steel pipe is subjected to force, the second connecting rope is tightened, and the second winding roller is used to limit the second connecting rope to move downward following one end of the inclined steel pipe. When the inclined steel pipe is affected by lateral wind force, since the end of the inclined steel pipe is connected to the steel block, the steel block is installed on the square hole. After being subjected to force, the steel block generates pressure on the placement plate on the fixed plate, making the whole more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the first guide rail and the second guide rail of the present invention; Figure 3It is a schematic diagram of the structure of the connecting piece of the present invention; Figure 4 This is a schematic diagram of the fixed disk structure of the present invention; Figure 5 It is a schematic diagram of the structure of the present invention from another perspective; Figure 6 This is a schematic diagram of the structure of the safety net and the auxiliary safety net of the present invention; Figure 7 For the present invention Figure 1 A is an enlarged structural diagram; Figure 8 It is a schematic diagram of the present invention after multiple devices are connected in series.

[0016] In the figure: 1. Connector; 101. Threaded steel pipe; 102. Reinforcement rib; 103. Fixed rod; 2. Balance pipe; 201. First pulley; 3. Crank key; 4. Inclined steel pipe; 401. Square groove; 402. First guide rail; 403. Steel groove; 404. Slide; 405. Second guide rail; 5. Dustpan; 6. Safety net; 7. Auxiliary safety net; 8. First motor; 9. Second motor; 10. First gear; 11. Second gear; 12. Fixed plate; 13. Control cabinet; 14. Connecting pipe; 15. Counterweight; 16. Spring limiter; 17. Placement plate; 18. Steel block; 19. Square hole; 20. Connecting rod; 21. Guide rod; 22. Return spring; 23. Second pulley; 24. First connecting rope; 25. Second connecting rope. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of 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.

[0018] See also Figure 1-8The present invention provides a technical solution: a safety cantilever net for preventing an external scaffold from falling, comprising a plurality of connectors 1 fixed on the outer sides of the upper and lower outer walls of a building, a balance pipe 2 being detachably connected between the plurality of connectors 1, a plurality of first pulleys 201 being fixedly installed on the balance pipe 2 located on the outer side of the upper outer wall, a plurality of fixed disks 12 being arranged on the balance pipe 2 located on the outer side of the lower outer wall, two adjacent fixed disks 12 forming a group, and a steel block 18 being installed between each group of fixed disks 12, a plurality of square holes 19 being arranged in an annular manner on each fixed disk 12, an inclined steel pipe 4 being connected to the steel block 18 through mortise and tenon joints, a second guide rail 405 being slidably installed on one end of the inclined steel pipe 4, a second pulley 23 being fixedly installed on the top of the second guide rail 405, a plurality of safety nets 6 being slidably connected to the plurality of second guide rails 405, guide rods 21 being fixedly connected to both ends of one side of the safety net 6, and the other end of the safety net 6 being slidably connected to the guide rods 21. A plurality of connecting rods 20 are connected, and a recoil spring 22 is connected to the connecting rod 20, and one end of each recoil spring 22 is fixedly connected to a first connecting rope 24, a second motor 9 is fixedly installed on the top of the lower outer wall, and a first gear 10 is sleeved on the output shaft of the second motor 9, and the lower outer wall is rotatably connected to a second gear 11 near the second motor 9, and one side of the second gear 11 is fixedly connected to a first winding roller, one end of the first connecting rope 24 is fixedly connected to the guide rod 21, and the other end is coiled on the first winding roller; a plurality of placement plates 17 are placed on the top of the lower outer wall, and each fixed plate 12 extends outward to form a right-angle end, and the two right-angle ends are matched with the placement plate 17, and the placement plate 17 and the right-angle end are fixedly connected together by bolts; both sides of the first guide rail 402 and the second guide rail 405 are in a recessed state, and the guide rod 21 slides on one side of the second guide rail 405;First, multiple connectors 1 are installed on the upper and lower outer walls in sequence, and then the balance pipe 2 is placed on the connector 1. When installing the balance pipe 2, the fixing plate 12 is simultaneously inserted into the balance pipe 2, and then the inclined steel pipe 4 is installed on the steel block 18, and then the steel block 18 is installed into the square hole 19 on the fixing plate 12, and then multiple placement plates 17 are placed on the top of the lower outer wall. After the placement plates 17 are installed, multiple fixing plates 12 are pieced together on the side of the placement plates 17, and then one end of the first connection rope 24 is installed on the first winding roller, and the other end of the first connection rope 24 is fixed on the guide rod 21 When the second motor 9 rotates, the second motor 9 drives the first gear 10 to rotate. When the first gear 10 rotates, it drives the second gear 11 to rotate. The second gear 11 transmits power to the first winding roller, so that the first winding roller drives the first connecting rope 24 to be tightened, so that the end of the guide rod 21 slides along the second guide rail 405 and the first guide rail 402. When the guide rod 21 slides on the first guide rail 402 and the second guide rail 405, the connecting rod 20 at one end of the safety net 6 stops sliding after contacting the first pulley 201, so that the guide rod 21 stops sliding on the first guide rail 40 After sliding, the safety net 6 gradually separates from the first guide rail 402 and connects with the second guide rail 405, so that the safety net 6 is laid between the first pulley 201 and the first pulley 23. Since the second motor 9 has a certain torque, the safety net 6 will be more secure after installation. The safety net 6 is separated from the first guide rail 402 and the second guide rail 405 and the inclined steel pipe 4, and the safety net 6 is arched by the second pulley 23 and the first pulley 201, so that when the safety net 6 is stressed, the grids can pull each other, so that the stress is relatively even, so that the safety net 6 can be effectively To exert its tension and improve the safety performance of the device; in the existing construction process, the length of the outer wall is different, but the length of each balance pipe 2 is fixed, so when the balance pipe 2 is installed on the outer wall, the balance pipe 2 can be cut according to actual needs, or the ends of multiple balance pipes 2 can be connected and extended, and the balance pipe 2 is arranged on the wall so that the whole can cover the outer wall to meet the existing construction needs, wherein the bottom of the safety net 6 can be connected by sliding on the guide rod 21 on the first guide rail 402 and the second guide rail 405 to complete the connection between the (N+1) frames, as shown in the attached; Figure 8 As shown, when the safety net 6 exceeds the outline of the outer wall, the safety net 6 can be cut.

[0019] Furthermore, each inclined steel pipe 4 is fixedly connected with a first guide rail 402, and a square groove 401 is provided at the bottom of one end of the inclined steel pipe 4. The cross-sections of the first guide rail 402 and the second guide rail 405 are parallel to each other. The inclined steel pipe 4 is provided with a slide groove 404 near the bottom of the second guide rail 405, and a steel groove 403 is slidably connected to the slide groove 404. The steel groove 403 and the first guide rail 402 are slidably connected, and the steel groove 403 and the second guide rail 405 are fixedly connected together; a control cabinet 13 is fixedly installed on the top of the lower outer wall, and a first motor 8 is fixedly installed on the top of the lower outer wall near the control cabinet 13. The output shaft of the first motor 8 is sleeved with a second winding roller, and the second winding roller is fixedly connected with a second connecting rope 25. The second connecting rope 25 passes through the recoil spring 22, bypasses the first pulley 201 and is fixedly connected with the square hole 19; after the inclined steel pipe 4 is installed, the second connecting rope 25 can also pass through the first pulley 20 1 and the second pulley 23, so that the second connecting rope 25 can pull the inclined steel pipe 4 to prevent the placement plate 17 from falling to the ground along the lower outer wall after being stressed. In addition, when the inclined steel pipe 4 is stressed, the second connecting rope 25 is tightened, and the second winding roller is used to limit the second connecting rope 25 to move downward following one end of the inclined steel pipe 4. When the inclined steel pipe 4 is affected by the lateral wind force, since the end of the inclined steel pipe 4 is connected to the steel block 18, and the steel block 18 is installed on the square hole 19, after being stressed, the steel block 18 generates pressure on the placement plate 17 on the fixed plate 12, making the whole more stable; if it is necessary to change the angle of the inclined steel pipe 4, the steel block 18 can correspond to different square holes 19 on the fixed plate 12. Therefore, after the angle of the inclined steel pipe 4 is changed, it is also necessary to change the distance between the first guide rail 402 and the second guide rail 405 to ensure that the safety net 6 can cover the space between the inclined steel pipe 4 and the side of the outer wall; Therefore, the steel trough 403 is affected by the change in the inclination of the inclined steel pipe 4, and the distance between the first guide rail 402 and the second guide rail 405 can be controlled under the traction of the second connecting rope 25, so that the safety net 6 can release the length corresponding to the first guide rail 402 and the second guide rail 405. It is only necessary to manually control the control cabinet 13 to drive the first motor 8 to rotate, and the first motor 8 drives the second winding roller to rotate after the rotation, so that the second connecting rope 25 controls the second pulley 23.

[0020] Furthermore, each first connecting rope 24 is hung with a counterweight 15, which is movable between the first pulley 201 and the fixed plate 12, and the counterweight 15 is fixedly connected to the connecting pipe 14 through a rope, and the connecting pipe 14 is fixedly connected to the outside of the auxiliary safety net 7, one end of the auxiliary safety net 7 is fixedly connected to the guide rod 21 and follows the safety net 6 to slide between the first guide rail 402 and the second guide rail 405, wherein a part of the safety net 6 is reserved on the second guide rail 405 when the safety net 6 is unfolded, and when the safety net 6 is unfolded, the counterweight 15 follows the first connecting rope 24 to descend, and the auxiliary safety net 7 is unfolded at the same time, The mesh density of the whole net 6 is smaller than the mesh density of the auxiliary safety net 7. When the safety net 6 is subjected to force, if the safety net 6 is damaged, the construction waste will fall on the auxiliary safety net 7. When the auxiliary safety net 7 is subjected to force, the auxiliary safety net 7 will drive the counterweight block 15 to descend. The descent of the counterweight block 15 will cause the return spring 22 to contact the first pulley 201, causing the return spring 22 to be compressed. The safety net 6 will add a portion of the mesh reserved on the second guide rail 405 to the damaged area to prevent the damaged area from being more easily torn into pieces after contacting the construction waste again. Therefore, with the auxiliary safety net 7, the safety performance of the device is improved.

[0021] Furthermore, a spring limiter 16 is fixedly installed on the top of each second guide rail 405, and one end of the spring limiter 16 protrudes from the side of the second guide rail 405. When the guide rod 21 passes through the spring limiter 16, the spring limiter 16 is driven to be compressed. The spring limiter 16 is used to limit the guide rod 21. The spring limiter 16 plays an intelligent detection role, which can monitor the pressure of the safety net 6 in real time to ensure that the safety net 6 works within a safe force range. If the safety net 6 works within the force limit range, it needs to be replaced immediately.

[0022] A dustpan 5 is inserted into the side of the plurality of inclined steel pipes 4 facing the outer wall. When the construction waste is in the form of particles, the dustpan 5 will be filled with particles, and thus needs to be cleaned regularly.

[0023] A threaded steel pipe 101 passes through each connecting piece 1, and the threaded steel pipe 101 and the balancing pipe 2 are connected by bolts. Fixed rods 103 are fixedly connected to both ends of the inner side of the connecting piece 1, and reinforcing ribs 102 are fixedly connected to the middle part of the inner side of the connecting piece 1. Multiple lift keys 3 are fixedly installed on the outer sides of the upper and lower outer walls, and each lift key 3 is located at the bottom of the balancing pipe 2. The lift keys 3 prevent the balancing pipe 2 from being deformed after being subjected to impact force.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety net for preventing an external scaffold from falling, characterized in that: The invention comprises a plurality of connecting members (1) fixed on the outer sides of the upper and lower outer walls of a building, wherein a balance pipe (2) is detachably connected between the plurality of connecting members (1), a plurality of first pulleys (201) are fixedly installed on the balance pipe (2) located on the outer side of the upper outer wall, a plurality of fixed disks (12) are arranged on the balance pipe (2) located on the outer side of the lower outer wall, two adjacent fixed disks (12) form a group, and a steel block (18) is installed between each group of fixed disks (12), each of the fixed disks (12) is provided with a plurality of square holes (19) distributed in an annular manner, an inclined steel pipe (4) is connected to the steel block (18) through mortise and tenon joints, a second guide rail (405) is slidably installed on one end of the inclined steel pipe (4), a second pulley (23) is fixedly installed on the top of the second guide rail (405), and the plurality of A safety net (6) is slidably connected to the second guide rail (405), and both ends of one side of the safety net (6) are fixedly connected to guide rods (21), and the other end of the safety net (6) is slidably connected to a plurality of connecting rods (20), and the connecting rods (20) are connected to recoil springs (22), and one end of each recoil spring (22) is fixedly connected to a first connecting rope (24). A second motor (9) is fixedly installed on the top of the lower outer wall, and a first gear (10) is sleeved on the output shaft of the second motor (9). The lower outer wall is rotatably connected to a second gear (11) near the second motor (9), and one side of the second gear (11) is fixedly connected to a first winding roller, and one end of the first connecting rope (24) is fixedly connected to the guide rod (21), and the other end is wound around the first winding roller.

2. The safety net for preventing an external scaffold from falling according to claim 1 is characterized in that: A plurality of placement plates (17) are placed on the top of the lower outer wall, and each of the fixing plates (12) extends outward to form a right-angle end, and the two right-angle ends are matched with the placement plate (17), and the placement plate (17) and the right-angle end are fixed together by bolts.

3. The safety net for preventing an external scaffold from falling according to claim 1 is characterized in that: Each of the inclined steel tubes (4) is fixedly connected to a first guide rail (402), a square groove (401) is provided at the bottom of one end of each of the inclined steel tubes (4), the end sections of the first guide rail (402) and the second guide rail (405) are parallel to each other, a sliding groove (404) is provided on the inclined steel tube (4) near the bottom of the second guide rail (405), a steel groove (403) is slidably connected to the sliding groove (404), the steel groove (403) and the first guide rail (402) are slidably connected, and the steel groove (403) and the second guide rail (405) are fixedly connected together.

4. The safety net for preventing an external scaffold from falling according to claim 3 is characterized in that: Both sides of the first guide rail (402) and the second guide rail (405) are in a recessed state, and the guide rod (21) slides on one side of the second guide rail (405).

5. The safety net for preventing an external scaffold from falling according to claim 1 is characterized in that: A control cabinet (13) is fixedly installed on the top of the lower outer wall, and a first motor (8) is fixedly installed on the top of the lower outer wall near the control cabinet (13). The output shaft of the first motor (8) is sleeved with a second winding roller, and the second winding roller is fixedly connected to a second connecting rope (25). The second connecting rope (25) passes through a recoil spring (22), bypasses the first pulley (201) and is fixedly connected to the square hole (19).

6. The safety net for preventing an external scaffold from falling according to claim 1 is characterized in that: A counterweight (15) is suspended on each of the first connecting ropes (24), and the counterweight (15) is movably located between the first pulley (201) and the fixed plate (12). The counterweight (15) is fixedly connected to a connecting pipe (14) via a rope, and the connecting pipe (14) is externally fixedly connected to a secondary safety net (7). One end of the secondary safety net (7) is fixedly connected to the guide rod (21) and follows the safety net (6) to slide between the first guide rail (402) and the second guide rail (405).

7. The safety net for preventing an external scaffold from falling according to claim 2 is characterized in that: A spring stopper (16) is fixedly mounted on the top of each second guide rail (405), one end of the spring stopper (16) protruding from the side of the second guide rail (405), and when the guide rod (21) passes through the spring stopper (16), the spring stopper (16) is driven to be compressed, and the spring stopper (16) is used to limit the guide rod (21).

8. The safety net for preventing an external scaffold from falling according to claim 1 is characterized in that: Dustpans (5) are inserted into the plurality of inclined steel pipes (4) on the side facing the outer wall.

9. The safety net for preventing an external scaffold from falling according to claim 1 is characterized in that: A threaded steel pipe (101) passes through each of the connecting pieces (1), the threaded steel pipe (101) and the balance pipe (2) are connected by bolts, both ends of the inner side of the connecting piece (1) are fixedly connected to fixing rods (103), the middle part of the inner side of the connecting piece (1) is fixedly connected to a reinforcing rib (102), and a plurality of pivot keys (3) are fixedly installed on the outer sides of the upper and lower outer walls, and each pivot key (3) is located at the bottom of the balance pipe (2).

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