Safety picket net for external scaffold

Abstract

The present application relates to the technical fields of construction site safety protection, and discloses a safety net for preventing falling of an outer scaffold, which comprises a plurality of connecting pieces fixed on the outer sides of upper and lower outer walls of a building, balance pipes detachably connected between the connecting pieces, a plurality of first pulleys fixedly installed on the balance pipes located on the outer side of the upper outer wall, a plurality of fixing discs provided on the balance pipes located on the outer side of the lower outer wall, two adjacent fixing discs forming a group, a steel block installed between each group of fixing discs, a plurality of square holes in the form of a ring distributed on each fixing disc, and an inclined steel pipe connected to the steel block through a mortise and tenon joint. The safety net for preventing falling of the outer scaffold is designed in a separated manner with the inclined steel pipe through the first guide rail and the second guide rail, and the safety net is arched through the second pulley and the first pulley, so that the safety net can be pulled by the grids when being stressed, the stress is more evenly distributed, the safety net can effectively play its tension, and the safety performance of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of construction site safety protection, in particular to a safety picket net for external scaffolding. BACKGROUND

[0002] A safety net is a protective net set under or beside a high-altitude construction equipment installation or skill performance to prevent accidents caused by falling people or objects. The safety net is composed of a net body, edge ropes, tie ropes and tendon ropes. The net body is knitted by net ropes and has diamond-shaped or square mesh.

[0003] The existing safety picket net and installation method are as follows: a fastener is arranged at the bottom of the diagonal bracing steel pipe to connect with the external scaffold (a right-angle fastener or a rotating fastener); then the diagonal bracing steel pipe is vertically arranged, one end of the net is hung on the diagonal bracing horizontal rod, the other end is hung on the external scaffold horizontal rod (the width of the net is hung according to the required width after the diagonal bracing is unfolded by 45 degrees by experience), and the iron wire is bound on the horizontal rod; then the iron wire is manually pulled to lay down the diagonal bracing to 45 degrees, wherein: when the diagonal bracing is fixed on the external scaffold horizontal rod by the right-angle fastener, the fastener screw needs to be loosened to be able to be laid down; when the diagonal bracing is fixed by the rotating fastener, it can be directly laid down; finally, the iron wire is bound to the external scaffold, and the iron wire is finally stressed or the rope of the safety net is stressed; however, the existing structure has the following defects: when the diagonal bracing system is directly connected with the external scaffold, the external scaffold directly bears the falling load of the diagonal bracing system itself and the upper falling objects, and the distance from the end of the diagonal bracing rod to the main node of the scaffold is far, which increases the safety risk of the external scaffold; in addition, the safety picket net has a large area, under the action of wind load, the stress of the external scaffold is further increased, which also increases the safety risk of the external scaffold, and the safety picket net is also easy to deviate under the action of wind load. In addition, when the diagonal bracing rod is fixed with the external scaffold horizontal rod, a right-angle fastener is needed, and the right-angle fastener needs to be loosened to point outward by 45 degrees, which has a sliding risk; therefore, the present application provides a safety picket net for external scaffolding. SUMMARY

[0004] The present application aims to provide a safety picket net for external scaffolding to solve the problems in the background art.

[0005] In order to achieve the above object, the present application provides the following technical scheme: A safety net for preventing falling of an outer scaffold, comprising a plurality of connecting pieces fixed on the outer sides of upper and lower outer walls of a building, a plurality of balance pipes detachably connected between the connecting pieces, a plurality of first pulleys fixedly installed on the balance pipes located on the outer side of the upper outer wall, a plurality of fixing discs provided on the balance pipes located on the outer side of the lower outer wall, two adjacent fixing discs forming a group, a steel block installed between each group of fixing discs, a plurality of square holes in the form of a ring distributed on each fixing disc, a plurality of inclined steel pipes connected to the steel block through mortise and tenon joints, a second guide rail slidably installed at one end of each inclined steel pipe, a second pulley fixedly installed at the top of the second guide rail, a safety net slidably connected to a plurality of second guide rails, guide rods fixedly connected to both ends of one side of the safety net, a plurality of connecting rods slidably connected to the other end of the safety net, a return spring connected to each connecting rod, a first connecting rope fixedly connected to one end of each return spring, a second motor fixedly installed at the top of the lower outer wall, a first gear sleeve connected to the output shaft of the second motor, a second gear rotatably connected to the lower outer wall near the second motor, a first winding roller fixedly connected to one side of the second gear, the first connecting rope fixedly connected to one end of the guide rod and wound around the first winding roller.

[0006] Preferably, a plurality of placing plates are placed at the top of the lower outer wall, each fixing disc extends outward to form a right-angled end portion, the two right-angled end portions are matched with the placing plates, and the placing plates and the right-angled end portions are fixedly connected together by bolts.

[0007] Preferably, a first guide rail is fixedly connected to each inclined steel pipe, a square groove is formed at the bottom of one end of each inclined steel pipe, the cross sections of the first guide rail and the second guide rail are parallel to each other, a sliding groove is formed in the inclined steel pipe 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 fixedly connected to the second guide rail.

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

[0009] Preferably, a control cabinet is fixedly installed at the top of the lower outer wall, a first motor is fixedly installed at the top of the lower outer wall near the control cabinet, a second winding roller is sleeve-connected to the output shaft of the first motor, a second connecting rope is fixedly connected to the second winding roller, and the second connecting rope is fixedly connected together after passing through the return spring, winding around the first pulley and the square hole.

[0010] Preferably, a counterweight is hung on each first connecting rope, the counterweight is movable between the first pulley and the fixing disc, a connecting pipe is fixedly connected to the counterweight by a rope, a secondary safety net is fixedly connected to the outside of the connecting pipe, and one end of the secondary safety net is fixedly connected to the guide rod to slide with the safety net between the first guide rail and the second guide rail.

[0011] Preferably, the second guide rail top is fixedly installed with a spring limiter, one end of the spring limiter protrudes from the side of the second guide rail, when the guide rod passes through the spring limiter, the driving spring limiter is compressed, and the spring limiter is used to limit the guide rod.

[0012] Preferably, a dustpan is inserted into the side of the outer wall of the plurality of inclined steel pipes.

[0013] Preferably, a threaded steel pipe is penetrated through each connecting piece, the threaded steel pipe and the balance pipe are connected through bolts, both ends of the inner side of the connecting piece are fixedly connected with fixed rods, and the middle of the inner side of the connecting piece is fixedly connected with a reinforcing rib.

[0014] Compared with the prior art, the beneficial effects of the present application are:

[0015] 1、The safety net is entirely laid between the first pulley and the second pulley, and the second motor has a certain torque, so that the safety net is more reliable after installation, and the safety net is designed in a separated manner with the first guide rail, the second guide rail and the inclined steel pipe, and the safety net is arched through the second pulley and the first pulley, so that the grids can pull each other when the safety net is stressed, the stress is more evenly distributed, the safety net can effectively play its tension, and the safety performance of the device is improved.

[0016] 2、When the safety net is stressed, if the safety net is damaged, the construction waste will fall on the auxiliary safety net, and when the auxiliary safety net is stressed, the auxiliary safety net will drive the counterweight to descend, the descent of the counterweight will make the return spring contact the first pulley, the return spring is compressed, the safety net will supplement the damaged area with a part of the grid reserved on the second guide rail, and the damaged area is prevented from being more easily torn apart by the grid after contacting the construction waste again, so that the safety performance of the device is improved under the premise of the auxiliary safety net.

[0017] 3、After the inclined steel pipe is installed, the second connecting rope can also pass through the first pulley and the second pulley, so that the second connecting rope can pull the inclined steel pipe, the placing plate is prevented from falling to the ground along the lower outer wall after being stressed, and in addition, when the inclined steel pipe is stressed, the second connecting rope is pulled tight, the second winding roller is used to limit the second connecting rope from moving downward with one end of the inclined steel pipe, and when the inclined steel pipe is affected by the transverse wind force, since the end of the inclined steel pipe is connected with the steel block, and the steel block is installed on the square hole, pressure is generated on the placing plate through the steel block on the fixed disc after being stressed, so that the whole becomes more stable. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the present application.

[0019] Figure 2The first guide rail and the second guide rail structure schematic diagram of the present application;

[0020] Figure 3 The connecting piece structure schematic diagram of the present application;

[0021] Figure 4 The fixed disc structure schematic diagram of the present application;

[0022] Figure 5 The overall additional perspective structure schematic diagram of the present application;

[0023] Figure 6 The safety net and the auxiliary safety net structure schematic diagram of the present application;

[0024] Figure 7 The A place amplification structure schematic diagram in the present application Figure 1 ;

[0025] Figure 8 The overall multiple series together after implementation schematic diagram of the present application.

[0026] In the figure: 1, connecting piece; 101, threaded steel pipe; 102, reinforcing rib; 103, fixed rod; 2, balance pipe; 201, first pulley; 3, warped key; 4, inclined steel pipe; 401, square groove; 402, first guide rail; 403, steel groove; 404, sliding groove; 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 disc; 13, control cabinet; 14, connecting pipe; 15, counterweight; 16, spring limiter; 17, placing 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

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0028] Please refer to Figures 1-8The application provides a technical scheme: a safety net for preventing falling of an outer scaffold, which comprises a plurality of connecting pieces 1 fixed on the outer sides of upper and lower outer walls of a building, balance pipes 2 detachably connected between the connecting pieces 1, a plurality of first pulleys 201 fixedly installed on the balance pipes 2 located on the outer side of the upper outer wall, a plurality of fixed discs 12 provided on the balance pipes 2 located on the outer side of the lower outer wall, two adjacent fixed discs 12 forming a group, a steel block 18 installed between each group of fixed discs 12, a plurality of square holes 19 in the form of a ring and arranged on each fixed disc 12, an inclined steel pipe 4 connected to the steel block 18 through a mortise and tenon joint, a second guide rail 405 slidably installed at one end of the inclined steel pipe 4, a second pulley 23 fixedly installed at the top of the second guide rail 405, a safety net 6 slidably connected to a plurality of second guide rails 405, guide rods 21 fixedly connected to both ends of one side of the safety net 6, a plurality of connecting rods 20 slidably connected to the other end of the safety net 6, return springs 22 connected to the connecting rods 20, first connecting ropes 24 fixedly connected to one end of each return spring 22, a second motor 9 fixedly installed at the top of the lower outer wall, a first gear 10 sleeved on the output shaft of the second motor 9, a second gear 11 rotatably connected to the lower outer wall near the second motor 9, a first winding roller fixedly connected to one side of the second gear 11, one end of the first connecting rope 24 fixedly connected to the guide rod 21 and the other end of the first connecting rope 24 wound on the first winding roller, a plurality of placement plates 17 placed on the top of the lower outer wall, each fixed disc 12 extending outward to form a right-angle end portion, the two right-angle end portions being fitted with the placement plates 17, and the placement plates 17 and the right-angle end portions being fixedly connected together through bolts, and the first guide rail 402 and the second guide rail 405 being in a recessed state on both sides, and the guide rod 21 sliding on one side of the second guide rail 405.Firstly, a plurality of 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, and when the balance pipe 2 is installed, the fixing disc 12 is sleeved on 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 on the square hole 19 on the fixing disc 12, and then a plurality of placement plates 17 are placed on the top of the lower outer wall, and when the placement plate 17 is installed, a plurality of fixing discs 12 are arranged on the side of the placement plate 17, and then one end of the first connecting rope 24 is installed on the first winding roller, and the other end of the first connecting 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, and the first gear 10 drives the second gear 11 to rotate when rotating, and 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 tensioned, and the end of the guide rod 21 slides along the second guide rail 405 and the first guide rail 402, so that the guide rod 21 slides on the first guide rail 402 and the second guide rail 405, and the connecting rod 20 at one end of the safety net 6 contacts the first pulley 201 after the guide rod 21 slides on the first guide rail 402 and the second guide rail 405, and then stops sliding, so that the guide rod 21 gradually separates from the first guide rail 402 and connects with the second guide rail 405 after sliding on the first guide rail 402, and the safety net 6 is entirely laid between the first pulley 201 and the second pulley 23, and the safety net 6 is arched through the second pulley 23 and the first pulley 201, so that the safety net 6 can be pulled between the meshes when stressed, so that the stress is more evenly distributed, so that the safety net 6 can effectively play its tension and improve the safety performance of the device; wherein the length of the outer wall surface in the existing construction process is not the same, but the length of each balance pipe 2 is fixed, so that the balance pipe 2 can be cut according to actual needs when the balance pipe 2 is installed on the outer wall surface, or a plurality of balance pipes 2 can be connected at the end to extend, and the balance pipe 2 is arranged on the wall surface, so that the whole can cover the outer wall surface to meet the existing construction needs, wherein the bottom of the safety net 6 can be connected through the guide rod 21 sliding 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 accompanying; Figure 8 When the safety net 6 exceeds the outer wall contour, the safety net 6 can be cut.

[0029] Further, the first guide rail 402 is fixedly connected to each inclined steel pipe 4, a square groove 401 is formed at the bottom of one end of the inclined steel pipe 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 formed at the bottom of the inclined steel pipe 4 close to the second guide rail 405, a steel groove 403 is slidably connected to the sliding groove 404, the steel groove 403 is slidably connected to the first guide rail 402 and fixedly connected to the second guide rail 405; the control cabinet 13 is fixedly installed at the top of the lower outer wall, the first motor 8 is fixedly installed at the top of the lower outer wall close to the control cabinet 13, the output shaft of the first motor 8 is sleeved with a second winding roller, the second winding roller is fixedly connected with a second connecting rope 25, the second connecting rope 25 passes through the complex spring 22, winds around the first pulley 201 and the square hole 19 and is fixedly connected together; after the inclined steel pipe 4 is installed, the second connecting rope 25 also passes through the first pulley 201 and the second pulley 23, so that the second connecting rope 25 can pull the inclined steel pipe 4, preventing the placing 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 pulled tight, the second winding roller is used to limit the second connecting rope 25 from moving downward with one end of the inclined steel pipe 4, when the inclined steel pipe 4 is affected by the transverse wind force, since the end of the inclined steel pipe 4 is connected with the steel block 18, the steel block 18 is installed on the square hole 19, after being stressed, the steel block 18 generates pressure on the placing plate 17 on the fixed disc 12, so that the whole becomes more stable; if it is necessary to change the angle of the inclined steel pipe 4, the steel block 18 on the fixed disc 12 can be correspondingly matched with different square holes 19, so that 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 between the inclined steel pipe 4 and the side surface of the outer wall.

[0030] Therefore, the distance between the first guide rail 402 and the second guide rail 405 can be controlled by the change of the inclination of the steel groove 403 and 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, only manual control of the control cabinet 13 is needed to drive the first motor 8 to rotate, so that the second connecting rope 25 can control the second pulley 23 after the first motor 8 rotates.

[0031] Further, the counterweight 15 is hung on each first connecting rope 24, and the counterweight 15 is movable between the first pulley 201 and the fixed disc 12, the connecting pipe 14 is fixedly connected to the counterweight 15 through a rope, the auxiliary safety net 7 is fixedly connected to the connecting pipe 14, one end of the auxiliary safety net 7 is fixedly connected to the guide rod 21 and slides with the safety net 6 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, when the safety net 6 is unfolded, the counterweight 15 descends with the first connecting rope 24, the auxiliary safety net 7 is unfolded at the same time, the grid density of the safety net 6 is less than that of the auxiliary safety net 7, when the safety net 6 is broken under stress, the construction waste will fall on the auxiliary safety net 7, when the auxiliary safety net 7 is stressed, the auxiliary safety net 7 will drive the counterweight 15 to descend, the counterweight 15 will make the return spring 22 and the first pulley 201 contact, so that the return spring 22 is compressed, the safety net 6 will supplement the grid reserved on the second guide rail 405 to the damaged area, so as to prevent the damaged area from being more easily torn apart by the grid after contacting the construction waste again, therefore, under the premise of the auxiliary safety net 7, the safety performance of the lifting device is improved.

[0032] Further, the spring limiter 16 is fixedly installed at the top of each second guide rail 405, 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 a role of intelligent detection, can monitor the pressure of the safety net 6 in real time, and ensures that the safety net 6 works within a safe stress range, if the safety net 6 works within a stress limit range, it needs to be replaced immediately.

[0033] The plurality of inclined steel pipes 4 are inserted with the dustpans 5 on the side facing the outer wall, when the construction waste is in particles, the dustpans 5 will be filled, and therefore need to be cleaned regularly.

[0034] The threaded steel pipe 101 is penetrated through each connecting piece 1, the threaded steel pipe 101 and the balance pipe 2 are connected through bolts, the fixed rod 103 is fixedly connected to the inner side of the connecting piece 1 at both ends, the reinforcing rib 102 is fixedly connected to the inner side of the connecting piece 1 at the middle, the plurality of buckling keys 3 are fixedly installed on the outer side of the upper and lower outer walls, and each buckling key 3 is located at the bottom of the balance pipe 2, the buckling key 3 prevents the balance pipe 2 from being deformed after being impacted.

[0035] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. It is to be understood that the terms such as first and second, etc., merely are used to differentiate one from another without necessarily implying or requiring any actual relationship or order between them. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] While the embodiments of the application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, many modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application as defined by the appended claims and their equivalents.

Claims

1. An external scaffold anti-falling safety pick net, characterized in that: The utility model provides a building external wall safety net device, including a plurality of fixed building upper and lower outer wall outside connecting piece (1), a plurality of connecting piece (1) between detachable connection has balance pipe (2), be located upper outer wall outside balance pipe (2) on fixed mounting has a plurality of first pulley (201), be located lower outer wall outside balance pipe (2) on be provided with a plurality of fixed disc (12), adjacent two fixed disc (12) form a group, and every group fixed disc (12) between installation has steel block (18), every fixed disc (12) on annular distribution open has a plurality of square hole (19), the steel block (18) on through mortise and tenon connection has inclined steel pipe (4), the inclined steel pipe (4) one end sliding installation has second guide rail (405), second guide rail (405) top fixed mounting has second pulley (23), a plurality of second guide rail (405) on sliding connection has safety net (6), safety net (6) one side both ends all are fixedly connected with guide rod (21), safety net (6) other end sliding connection has a plurality of connecting rod (20), connecting rod (20) on connection has return spring (22), every return spring (22) one end all are fixedly connected with first connecting rope (24), lower outer wall top fixed mounting has second motor (9), second motor (9) output shaft on sleeve first gear (10), lower outer wall near second motor (9) side rotation connection has second gear (11), second gear (11) one side fixed connection has first winding roller, first connecting rope (24) one end and guide rod (21) fixed connection, other end coiling is in first winding roller on; Every first connecting rope (24) on all hangs and is equipped with counterweight (15), counterweight (15) is located between first pulley (201) and fixed disc (12) and moves, counterweight (15) on through the fixed connection of rope has connecting pipe (14), connecting pipe (14) outside fixed connection has auxiliary safety net (7), auxiliary safety net (7) one end fixed connection in guide rod (21) on follow safety net (6) between first guide rail (402) and second guide rail (405) sliding.

2. The safety net according to claim 1, wherein: Lower outer wall top is placed with a plurality of placing plate (17), every fixed disc (12) extends to form right angle end portion outward, two right angle end portions and placing plate (17) coincide, placing plate (17) and right angle end portion are fixedly connected together through bolt.

3. The safety net according to claim 1, wherein: Every inclined steel pipe (4) on all fixed connection has first guide rail (402), the inclined steel pipe (4) one end bottom all are equipped with square groove (401), first guide rail (402) and second guide rail (405) end section section each other parallel, the inclined steel pipe (4) is close to second guide rail (405) bottom and is equipped with sliding groove (404), the sliding groove (404) on sliding connection has steel groove (403), steel groove (403) and first guide rail (402) sliding connection, and steel groove (403) and second guide rail (405) fixed connection together.

4. The safety net according to claim 3, wherein: The first guide rail (402) and the second guide rail (405) are recessed on both sides, and the guide rod (21) is located on one side of the second guide rail (405) and slides.

5. The safety net according to claim 1, wherein: The lower outer wall top is fixedly provided with a control cabinet (13), and a first motor (8) is fixedly arranged on the lower outer wall top near the control cabinet (13); the output shaft of the first motor (8) is sleeved with a second winding roller, the second winding roller is fixedly connected with a second connecting rope (25), and the second connecting rope (25) penetrates through a complex spring (22), passes around a first pulley (201) and a square hole (19), and is fixedly connected together.

6. The safety net according to claim 2, wherein: Each second guide rail (405) is fixedly provided with a spring position limiter (16) at the top, one end of the spring position limiter (16) protrudes from the side of the second guide rail (405), when the guide rod (21) passes through the spring position limiter (16), the spring position limiter (16) is driven to be compressed, and the spring position limiter (16) is used for limiting the guide rod (21).

7. The safety net according to claim 1, wherein: A dustpan (5) is inserted into the side of each inclined steel pipe (4) facing the outer wall.

8. The safety net according to claim 1, wherein: A threaded steel pipe (101) penetrates through each connecting piece (1), the threaded steel pipe (101) and the balance pipe (2) are connected through bolts, fixed rods (103) are fixedly connected to the inner sides of both ends of the connecting piece (1), reinforcing ribs (102) are fixedly connected to the inner sides of the middle portions of the connecting piece (1), a plurality of buckling keys (3) are fixedly installed on the outer sides of the upper and lower outer walls, and each buckling key (3) is located at the bottom of the balance pipe (2).

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