阅读说明：本技术 可移动式安全网 (Movable safety net ) 是由 刘航 王强 张天 方弟革 祝愿 朱琼 朱良策 蔡春铭 于 2021-08-24 设计创作，主要内容包括：本发明提供了可移动式安全网,包括两个移动架,以及位于两个所述移动架之间、且由上至下依次设置的防护网和连接组件,所述防护网的顶端设有安全防护组件；所述移动架包括设于所述连接组件外侧的水平支撑梁,固定于所述水平支撑梁下表面的刹车脚轮,固定于所述水平支撑梁上表面的垂直支撑梁,所述垂直支撑梁的底端外表面固定有对称设置的加强梁、顶端设有防腐机构；所述安全防护组件包括固定于所述防护网上表面、且对称设置的支撑板,设于两个所述支撑板之间、且对称设置的活动预警机构,以及固定于所述活动预警机构执行端的抗老化机构。本发明便于工人进行安装,且结构牢固,并能够调节防护网的角度。(The invention provides a movable safety net which comprises two movable frames, a protective net and a connecting assembly, wherein the protective net and the connecting assembly are positioned between the two movable frames and are sequentially arranged from top to bottom; the moving frame comprises a horizontal supporting beam arranged outside the connecting assembly, brake trundles fixed on the lower surface of the horizontal supporting beam and a vertical supporting beam fixed on the upper surface of the horizontal supporting beam, reinforcing beams which are symmetrically arranged are fixed on the outer surface of the bottom end of the vertical supporting beam, and an anti-corrosion mechanism is arranged at the top end of the vertical supporting beam; the safety protection assembly comprises supporting plates which are fixed on the upper surface of the protection net and are symmetrically arranged, two movable early warning mechanisms which are symmetrically arranged between the supporting plates, and an anti-aging mechanism which is fixed at the execution end of the movable early warning mechanism. The invention is convenient for workers to install, has firm structure and can adjust the angle of the protective net.)

1. The movable safety net is characterized by comprising two movable frames (10), a protective net (20) and a connecting assembly (30), wherein the protective net (20) and the connecting assembly are positioned between the two movable frames (10) and are sequentially arranged from top to bottom, and a safety protection assembly (40) is arranged at the top end of the protective net (20);

the moving frame (10) comprises a horizontal supporting beam (11) arranged on the outer side of the connecting assembly (30), brake casters (14) fixed on the lower surface of the horizontal supporting beam (11), and a vertical supporting beam (12) fixed on the upper surface of the horizontal supporting beam (11), wherein symmetrically arranged reinforcing beams (13) are fixed on the outer surface of the bottom end of the vertical supporting beam (12), and an anti-corrosion mechanism (15) is arranged at the top end of the vertical supporting beam;

the safety protection assembly (40) comprises support plates (41) which are fixed on the upper surface of the protective net (20) and symmetrically arranged, movable early warning mechanisms (42) which are arranged between the two support plates (41) and symmetrically arranged, and anti-aging mechanisms (43) which are fixed at the execution ends of the movable early warning mechanisms (42), the movable early warning mechanisms (42) comprise hinged seats (421) which are fixed on the upper surface of the protective net (20) and symmetrically arranged, air cylinders (422) which are rotatably connected with the hinged seats (421) through rotating shafts, and connecting rods (423) which are rotatably connected with piston rods of the air cylinders (422) through rotating shafts, and the connecting rods (423) are connected with the driving ends of the anti-aging mechanisms (43);

ageing resistance mechanism (43) are including being located two between backup pad (41) and rotate swivel plate (431) of being connected through pivot and backup pad (41) and be fixed in solar panel (432) of swivel plate (431) upper surface, solar panel (432) and anticorrosive mechanism (15) electric connection.

2. The mobile safety net according to claim 1, wherein the anti-corrosion mechanism (15) comprises a rain-shielding roof (151) fixed on the upper surface of the vertical support beam (12), an anode sacrificial block (152) arranged inside the rain-shielding roof (151) and inserted on the upper surface of the vertical support beam (12), and a conductive plug (153) fixed on the top end of the vertical support beam (12) and symmetrically arranged, one end of the conductive plug (153) is abutted against the anode sacrificial block (152), and the other end is connected with the power transmission end of the solar panel (432) through a wire.

3. The movable safety net according to claim 1, wherein the activity early warning mechanism (42) further comprises an LED lamp panel (424) with one end rotatably connected with the hinge seat (421) through a rotating shaft and the other end fixed on the outer surface of the two cylinders (422) on the same side, and a display screen (425) arranged between the two connecting rods (423) and coaxially arranged with the connecting rods (423).

4. The portable safety net according to claim 1, wherein the anti-aging mechanism (43) further comprises a waterproof cloth (433) fixed to a lower surface of the pivoting plates (431), and a groove (434) provided at one end of the two pivoting plates (431) adjacent to each other, and the two pivoting plates (431) are hinged to each other by the groove (434).

5. Movable safety net according to claim 1, characterized in that fixing lugs (121) are fixed on both sides of the vertical support beam (12), and sliding holes (122) are arranged on the fixing lugs (121).

6. The portable safety net according to claim 5, wherein the connection assembly (30) comprises a first fixing block (31) fixed to one side surface of the horizontal support beam (11), a second fixing block (32) fixed to the other side surface of the horizontal support beam (11), and a connection beam (33) inserted between the adjacent first fixing block (31) and second fixing block (32).

7. The movable safety net according to claim 6, wherein a first slot (312) for inserting the connecting beam (33) is formed in a housing of the first fixing block (31), and a guide hole (311) is formed in the housing of the first fixing block (31).

8. The movable safety net according to claim 7, wherein a second slot (321) for inserting the connecting beam (33) is formed on a housing of the second fixing block (32), and two through holes (322) are formed on the housing of the second fixing block (32).

9. The movable safety net according to claim 8, wherein a plurality of engaging lugs (21) are sequentially fixed on the two end surfaces of the protection net (20) from top to bottom, the engaging lugs (21) are slidably connected with the sliding holes (122) through bolts, and fixing pins (22) penetrating through the through holes (322) are fixed on the lower surface of the protection net (20).

10. The portable safety net according to claim 1, wherein a humidity sensor (23) is fixed to an outer surface of the protection net (20).

Technical Field

The invention mainly relates to the technical field of safety measures of constructional engineering, in particular to a movable safety net.

Background

With the innovation of modern building engineering construction technology, the form of a foundation pit supported by concrete supports and cast-in-place piles becomes an excellent mode of underground engineering construction technology, and the safety protection of the adjacent edge of a first support trestle is needed to ensure the safety of personnel and vehicles in the use process of the first support trestle.

According to a safety protection net for construction engineering provided in patent document No. cn201720998352.x, the protection net includes: a plurality of safety protection net frames, each of which is a frame structure formed by two transverse side rods and two vertical side rods; two ends of each of the at least two vertical stabilizing rods are respectively connected with two transverse side rods in a single safety protection net frame, and stabilizing rings matched with scaffold frames for constructional engineering are arranged on the at least two vertical stabilizing rods; two ends of each of the at least two transverse stabilizing rods are respectively connected with two vertical side rods in a single safety protection net frame and are intersected with the at least two vertical stabilizing rods; the protective net body is arranged on a single protective net frame, and the protective net body is positioned on the same side of the single protective net frame, the at least two vertical stabilizing rods and the at least two transverse stabilizing rods. The safety protection net has the characteristics of reasonable design, simple overall structure, convenience and practicability.

Although above-mentioned protection network connects vertical firm pole and horizontal limit pole through firm ring, has overall structure simple and convenient and practical's characteristics, but above-mentioned protection network still has the defect, for example when setting up, fastener construction quality and personnel set up technical level between the steel pipe have the direct relation, probably because set up personnel and set up the level restriction, lead to the steel pipe to connect inseparably, and the protection network receives near the moist environment's of foundation ditch erosion easily, causes certain potential safety hazard to the construction operation of foundation ditch limit.

Disclosure of Invention

The present invention is directed to a portable safety net that solves the above-mentioned problems of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the movable safety net comprises two movable frames, and a protective net and a connecting assembly which are positioned between the two movable frames and are sequentially arranged from top to bottom, wherein the top end of the protective net is provided with a safety protection assembly;

the moving frame comprises a horizontal supporting beam arranged outside the connecting assembly, brake trundles fixed on the lower surface of the horizontal supporting beam and a vertical supporting beam fixed on the upper surface of the horizontal supporting beam, reinforcing beams which are symmetrically arranged are fixed on the outer surface of the bottom end of the vertical supporting beam, and an anti-corrosion mechanism is arranged at the top end of the vertical supporting beam;

the safety protection assembly comprises support plates which are fixed on the upper surface of the protection net and symmetrically arranged, movable early warning mechanisms which are arranged between the two support plates and symmetrically arranged, and an anti-aging mechanism which is fixed at the execution end of the movable early warning mechanisms, wherein each movable early warning mechanism comprises a hinged seat which is fixed on the upper surface of the protection net and symmetrically arranged, an air cylinder which is rotationally connected with the hinged seat through a rotating shaft, and a connecting rod which is rotationally connected with a piston rod of the air cylinder through a rotating shaft, and the connecting rod is connected with the driving end of the anti-aging mechanism;

ageing resistance mechanism is including being located two between the backup pad, and rotate the rotor plate of being connected through pivot and backup pad, and be fixed in the solar panel of rotor plate upper surface, solar panel and anticorrosive mechanism electric connection.

Furthermore, anticorrosive mechanism is including being fixed in the rain roof that hides of vertical supporting beam upper surface locates hide the inside of rain roof, and peg graft in the anode sacrificial block of vertical supporting beam upper surface, and be fixed in vertical supporting beam top, and the electrically conductive plug that the symmetry set up, the one end of electrically conductive plug with anode sacrificial block looks butt, the other end pass through the wire with solar panel's transmission of electricity end is connected, and the stronger anode sacrificial block of reducibility will take place oxidation reaction and consume as the negative pole, and the protection network of being protected just can avoid corroding as the positive pole.

Further, activity early warning mechanism still include one end through the pivot with articulated seat rotates to be connected, the other end is fixed in with one side two the LED lamp plate of cylinder surface, and locate two between the connecting rod, and with the show screen of the coaxial setting of connecting rod, through show screen show safety information to the workman is reminded to light through the show screen sends.

Further, ageing resistance mechanism is still including being fixed in the cloth that keeps off the rain of rotor plate lower surface, and locate two the recess of the one end that the rotor plate is close to each other, two the rotor plate passes through the recess and articulates each other, meshes each other after crisscross through the recess on two rotor plates to make two rotor plates articulated each other, and use common rotation axis.

Furthermore, fixing lugs are fixed on two sides of the vertical supporting beam, and sliding holes are formed in the fixing lugs, so that the vertical supporting beam passes through the fixing lugs on the vertical supporting beam and the sliding holes in the fixing lugs to be used for installing a protective net.

Furthermore, the connecting assembly comprises a first fixing block fixed on one side surface of the horizontal supporting beam, a second fixing block fixed on the other side surface of the horizontal supporting beam, and a connecting beam inserted between the adjacent first fixing block and the second fixing block, and the connecting beam after installation provides support for the protective net.

Further, be equipped with the confession on the casing of first fixed block the first slot that the tie-beam alternates, seted up the guiding hole on the casing of first fixed block, first fixed block supplies the tie-beam to alternate through first slot, and the bolt that alternates on the guide hole guide tie-beam slides.

Further, be equipped with the confession on the casing of second fixed block the second slot that the tie-beam alternates, be equipped with two through-holes on the casing of second fixed block, the second fixed block supplies the tie-beam to alternate through the second slot, accomplishes through the through-hole with the fixed of tie-beam.

Further, the both ends surface of protection network is fixed with a plurality of engaging lugs from top to bottom in proper order, the engaging lug pass through the bolt with slide opening sliding connection, the lower fixed surface of protection network is equipped with and runs through the fixed pin of through-hole, the inside of second fixed block is inserted completely to the tie-beam to the complete fixed protection network makes the protection network parallel with perpendicular supporting beam.

Further, the surface mounting of protection network has humidity transducer, and humidity transducer responds to ambient humidity to when making ambient humidity exceed the setting value, the PLC controller that is connected with humidity transducer can in time control cylinder work, thereby drives the cylinder and drives solar panel, LED lamp plate and show screen arrival assigned position.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the invention is convenient for workers to install, has firm structure, and can adjust the angle of the protective net, and specifically comprises the following steps: the fixed pin of protection network lower surface runs through the second fixed block and keeps away from the through-hole of a perpendicular supporting beam one end to make the protection network rotate around this fixed pin, with the angle of adjusting the protection network, and carry out the lock tightly to the fixed pin through cam locking mechanism, with the fixed of completion protection network, the fixed pin through the protection network lower surface runs through another through-hole, the tie-beam inserts the inside of second fixed block completely this moment, with the complete fixed protection network, make the protection network parallel with a perpendicular supporting beam.

Secondly, the steel protection net can be subjected to anticorrosion protection and can give an alarm to workers, and the steel protection net protection method specifically comprises the following steps: promote solar panel through the connecting rod and rotate to solar panel contacts with the sun when fine, shelters from the rainwater when rainy day, supplies power for the positive pole sacrificial block through electrically conductive plug, and the strong positive pole sacrificial block of reducibility will regard as the negative pole to take place oxidation reaction and consume, and the protection network of protecting just can avoid corroding as anodal.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an isometric view of the present invention;

FIG. 3 is a rear view of the present invention;

FIG. 4 is an exploded view of the present invention;

FIG. 5 is a side view of the present invention;

FIG. 6 is a bottom view of the present invention;

FIG. 7 is an enlarged view of the structure of region A in FIG. 3;

fig. 8 is an enlarged view of the structure of region a of fig. 6.

In the figure: 10. a movable frame; 11. a horizontal support beam; 12. a vertical support beam; 121. fixing the ear; 122. a slide hole; 13. a reinforcing beam; 14. braking the caster; 15. an anti-corrosion mechanism; 151. a rain shielding top; 152. an anode sacrificial block; 153. a conductive plug; 20. a protective net; 21. connecting lugs; 22. a fixing pin; 23. a humidity sensor; 30. a connecting assembly; 31. a first fixed block; 311. a guide hole; 312. a first slot; 32. a second fixed block; 321. a second slot; 322. a through hole; 33. a connecting beam; 40. a safety shield assembly; 41. a support plate; 42. a movable early warning mechanism; 421. a hinged seat; 422. a cylinder; 423. a connecting rod; 424. an LED lamp panel; 425. displaying a screen; 43. an anti-aging mechanism; 431. a rotating plate; 432. a solar panel; 433. a rain cloth; 434. and (4) a groove.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In an embodiment, referring to fig. 1 to 8, a movable safety net includes two movable frames 10, and a protection net 20 and a connection assembly 30 located between the two movable frames 10 and sequentially arranged from top to bottom, wherein a safety protection assembly 40 is disposed at a top end of the protection net 20;

the moving frame 10 comprises a horizontal supporting beam 11 arranged outside the connecting assembly 30, brake casters 14 fixed on the lower surface of the horizontal supporting beam 11, and a vertical supporting beam 12 fixed on the upper surface of the horizontal supporting beam 11, wherein symmetrically arranged reinforcing beams 13 are fixed on the outer surface of the bottom end of the vertical supporting beam 12, and an anti-corrosion mechanism 15 is arranged at the top end of the vertical supporting beam;

the safety protection assembly 40 comprises support plates 41 which are fixed on the upper surface of the protection net 20 and are symmetrically arranged, movable early warning mechanisms 42 which are arranged between the two support plates 41 and are symmetrically arranged, and anti-aging mechanisms 43 which are fixed at the execution ends of the movable early warning mechanisms 42, wherein each movable early warning mechanism 42 comprises a hinged seat 421 which is fixed on the upper surface of the protection net 20 and is symmetrically arranged, a cylinder 422 which is rotationally connected with the hinged seat 421 through a rotating shaft, and a connecting rod 423 which is rotationally connected with a piston rod of the cylinder 422 through a rotating shaft, and the connecting rod 423 is connected with the driving end of the anti-aging mechanism 43;

the anti-aging mechanism 43 comprises a rotating plate 431 and a solar panel 432, wherein the rotating plate 431 is positioned between the two supporting plates 41 and is rotatably connected with the supporting plates 41 through a rotating shaft, the solar panel 432 is fixed on the upper surface of the rotating plate 431, and the solar panel 432 is electrically connected with the anti-corrosion mechanism 15;

it should be noted that, in the embodiment, after the two moving frames 10 are connected by the connecting assembly 30, the protection net 20 is installed between the two moving frames 10, since the brake casters 14 are disposed at the bottom ends of the vertical supporting beams 12 of the moving frames 10, which are connected to the protection net 20, so that workers can push the protection net 20 to move, and the supporting strength of the moving frames 10 is improved by the reinforcing beams 13 between the vertical supporting beams 12 and the horizontal supporting beams 11;

further, through the flexible of cylinder 422 piston rod, and drive cylinder 422 and use its pivot on articulated seat 421 as the rotation center and rotate, through the rotation of cylinder 422 on articulated seat 421 to drive connecting rod 423 and rotate, through the rotation of connecting rod 423 on cylinder 422 piston rod, rotate in order to promote solar panel 432, so that solar panel 432 contacts with the sun when fine day, shelters from the rainwater when rainy day.

Specifically, please refer to fig. 1, 2 and 7 again, the anti-corrosion mechanism 15 includes a rain-shielding roof 151 fixed on the upper surface of the vertical supporting beam 12, an anode sacrificial block 152 disposed inside the rain-shielding roof 151 and inserted into the upper surface of the vertical supporting beam 12, and conductive plugs 153 fixed on the top end of the vertical supporting beam 12 and symmetrically disposed, wherein one end of the conductive plug 153 abuts against the anode sacrificial block 152, and the other end is connected to the power transmission end of the solar panel 432 through a wire;

it should be noted that, in this embodiment, the rain shelter top 151 resists rain water to corrode the anode sacrificial block 152, the power transmission end of the solar panel 432 and the conductive plug 153 are connected through a wire, the conductive plug 153 supplies power to the anode sacrificial block 152, the anode sacrificial block 152 made of zinc with strong reducibility is used as a protection electrode and is connected with the protection net 20 to form a primary battery, the anode sacrificial block 152 with strong reducibility is used as a negative electrode to generate oxidation reaction and be consumed, and the protection net 20 to be protected is used as a positive electrode to avoid corrosion.

Specifically, please refer to fig. 2, 4 and 5 again, the movement early warning mechanism 42 further includes an LED lamp panel 424 having one end rotatably connected to the hinge seat 421 through a rotating shaft and the other end fixed to the outer surfaces of the two cylinders 422 on the same side, and a display screen 425 disposed between the two connecting rods 423 and coaxially disposed with the connecting rods 423, the anti-aging mechanism 43 further includes a rain cloth 433 fixed to the lower surface of the rotating plate 431, and a groove 434 disposed at one end of the two rotating plates 431 close to each other, and the two rotating plates 431 are hinged to each other through the groove 434;

it should be noted that, in this embodiment, when the air cylinder 422 is driven to rotate by taking a rotating shaft of the air cylinder 422 on the hinge seat 421 as a rotating center through extension and retraction of a piston rod of the air cylinder 422, the LED lamp panel 424 is driven to rotate due to coaxial arrangement of the LED lamp panel 424 and the air cylinder 422, so that the LED lamp panel 424 is vertical or folded, so as to remind a worker through the LED lamp panel 424, the connecting rod 423 is driven to rotate through rotation of the air cylinder 422 on the hinge seat 421, the display screen 425 coaxially arranged with the connecting rod 423 is driven to rotate through rotation of the connecting rod 423 on the piston rod of the air cylinder 422, so that when the display screen 425 is vertical, safety information is displayed through the display screen 425, and the worker is reminded through light emitted by the display screen 425;

further, rainwater at the hinge between the two rotating plates 431 is blocked by the rain blocking cloth 433, and the two rotating plates 431 are engaged with each other after being staggered by the grooves 434 of the two rotating plates 431, so that the two rotating plates 431 are hinged to each other, and a common rotating shaft is used.

Specifically, please refer to fig. 2, 3, 5 and 6 again, fixing lugs 121 are fixed on both sides of the vertical supporting beam 12, sliding holes 122 are formed on the fixing lugs 121, the connecting assembly 30 includes a first fixing block 31 fixed on one side surface of the horizontal supporting beam 11, a second fixing block 32 fixed on the other side surface of the horizontal supporting beam 11, and a connecting beam 33 inserted between the adjacent first fixing block 31 and second fixing block 32, a first slot 312 for the connecting beam 33 to penetrate through is formed on a housing of the first fixing block 31, a guide hole 311 is formed on a housing of the first fixing block 31, a second slot 321 for the connecting beam 33 to penetrate through is formed on a housing of the second fixing block 32, two through holes 322 are formed on a housing of the second fixing block 32, a plurality of connecting lugs 21 are sequentially fixed on two end surfaces of the protection net 20 from top to bottom, the connecting lug 21 is slidably connected with the sliding hole 122 through a bolt, a fixing pin 22 penetrating through the through hole 322 is fixed on the lower surface of the protection net 20, and a humidity sensor 23 is fixed on the outer surface of the protection net 20;

it should be noted that, in the present embodiment, the vertical support beams 12 are allowed to pass through the fixing lugs 121 thereon and the sliding holes 122 on the fixing lugs 121 for the protection net 20 to be installed;

further, the installation of the connection beam 33 is completed by inserting both ends of the connection beam 33 into the first fixing block 31 and the second fixing block 32, respectively, and the connection beam 33 after installation provides support for the protection net 20;

further, the first fixing block 31 is used for the connection beam 33 to penetrate through the first slot 312, and the guide hole 311 guides the bolt penetrating through the connection beam 33 to slide;

further, the second fixing block 32 is inserted into the connecting beam 33 through the second slot 321, and is fixed to the connecting beam 33 through the through hole 322;

further, bolts sequentially penetrate through the sliding holes 122 on the connecting lugs 21 and the fixing lugs 121 to enable the protection net 20 to be connected with the vertical supporting beams 12, the fixing pins 22 on the lower surface of the protection net 20 penetrate through the through holes 322 on one end, far away from the vertical supporting beams 12, of the second fixing block 32, so that the protection net 20 can rotate around the fixing pins 22 to adjust the angle of the protection net 20, and the fixing pins 22 are tightly locked through the cam locking mechanism to complete the fixing of the protection net 20;

the fixing pins 22 on the lower surface of the protection net 20 penetrate through the through holes 322 on the second fixing blocks 32 near one end of the vertical supporting beam 12, and at this time, the connecting beams 33 are completely inserted into the second fixing blocks 32 to completely fix the protection net 20, so that the protection net 20 is parallel to the vertical supporting beam 12;

further, the humidity sensor 23 with the model of BR-WS20 senses the ambient humidity, so that when the ambient humidity exceeds a set value, the PLC controller connected to the humidity sensor 23 can control the operation of the cylinder 422 in time, and thus the cylinder 422 is driven to drive the solar panel 432, the LED lamp panel 424 and the display screen 425 to reach a designated position.

The specific operation mode of the invention is as follows:

when the safety net is used, a worker firstly connects two moving frames 10 through a connecting assembly 30, installs the protection net 20 between the two moving frames 10, is convenient for the worker to push the protection net 20 to move because the brake casters 14 are arranged at the bottom ends of the vertical supporting beams 12 of the moving frames 10, which are connected with the protection net 20, and improves the supporting strength of the moving frames 10 through the reinforcing beams 13 between the vertical supporting beams 12 and the horizontal supporting beams 11;

the cylinder 422 is driven to rotate by taking the rotating shaft of the cylinder 422 on the hinge seat 421 as a rotating center through the extension and retraction of the piston rod of the cylinder 422, the connecting rod 423 is driven to rotate by the rotation of the air cylinder 422 on the hinge seat 421, the connecting rod 423 rotates on the piston rod of the cylinder 422 to push the solar panel 432 to rotate, so that the solar panel 432 is in contact with the sun in sunny days, the rain is shielded in rainy days, the rain-shielding top 151 resists the rain to corrode the anode sacrificial block 152, the power transmission end of the solar panel 432 is connected with the conductive plug 153 through a wire, the anode sacrificial block 152 is powered through the conductive plug 153, the anode sacrificial block 152 made of zinc with strong reducibility is used as a protective electrode, the anode sacrificial block 152 with strong reducibility is used as a cathode to generate oxidation reaction and be consumed, and the protected protective net 20 is used as an anode to avoid corrosion;

the LED lamp panel 424 and the air cylinder 422 are coaxially arranged, so that the LED lamp panel 424 is driven to rotate, the LED lamp panel 424 is made to be vertical or folded, workers are reminded through the LED lamp panel 424, the connecting rod 423 is driven to rotate through rotation of the air cylinder 422 on the hinged seat 421, the display screen 425 coaxially arranged with the connecting rod 423 is driven to rotate through rotation of the connecting rod 423 on a piston rod of the air cylinder 422, safety information is displayed through the display screen 425 when the display screen 425 is vertical, and the workers are reminded through light emitted by the display screen 425;

the bolts sequentially penetrate through the sliding holes 122 on the connecting lugs 21 and the fixing lugs 121 to enable the protection net 20 to be connected with the vertical supporting beam 12, the fixing pins 22 on the lower surface of the protection net 20 penetrate through the through holes 322 on one end, far away from the vertical supporting beam 12, of the second fixing block 32, so that the protection net 20 can rotate around the fixing pins 22 to adjust the angle of the protection net 20, and the fixing pins 22 are tightly locked through the cam locking mechanism to complete the fixing of the protection net 20

The fixing pins 22 passing through the lower surface of the protection net 20 penetrate through the through holes 322 of the second fixing blocks 32 near one end of the vertical supporting beams 12, and at this time, the connecting beams 33 are completely inserted into the inside of the second fixing blocks 32 to completely fix the protection net 20, so that the protection net 20 is parallel to the vertical supporting beams 12.

The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.