Protective device for construction work

Abstract

This invention relates to the field of construction safety devices, and more particularly to a construction safety device. It includes a protective frame, a base, and protective components. Two sets of protective frames are provided, and the protective surface can be folded, bent, and laid flat by rotating their opposite ends. The base is located on the opposite ends of the two sets of protective frames, and its position can be adjusted by lifting and rotating. The protective components are correspondingly installed on the two sets of protective frames, facing outwards when the two sets of protective frames are folded. Each protective component includes a flipping component and a translating component. The flipping component is controlled by a pull-out component and flips outwards on the protective frame. Two sets of translating components are provided, translating on either side of the flipping component. Through the folding and laying flat of the protective frame and the flipping and translating of the protective components, the structure and function of the protective surface can be changed. This invention enables cross-scenario application from special working conditions in nuclear power plants to conventional building construction, significantly reducing safety risks while improving construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of construction safety devices, and more particularly to a construction safety device. Background Technology

[0002] Construction safety devices are crucial facilities for ensuring the safety of workers on construction sites, and are widely used in various construction projects such as housing construction, bridge engineering, and industrial plants. In housing construction, edge protection, elevator shaft protection, and protective canopies at passageways have become standard equipment on construction sites to prevent falls from heights and falling object accidents. In bridge engineering, for special working conditions such as the construction of precast beam joints, construction companies have independently developed folding aerial work platforms. Through their foldable structural design, these platforms allow workers to safely perform formwork installation and rebar tying operations in confined spaces at heights. In recent years, with the rapid development of nuclear power construction, special working conditions such as the construction of internal structures of nuclear islands, containment domes, and nuclear fuel plant buildings have placed higher demands on safety devices. Nuclear power projects need to address the risk of falls from heights, consider the isolation requirements of radiation protection areas, and address the protection issues during the installation of special components such as penetrating parts and equipment gates.

[0003] Existing protective devices for construction still have many shortcomings in practical applications. Firstly, they are functionally limited and lack adaptability. Conventional edge protection railings and safety nets are mostly fixed structures, making it difficult to flexibly adjust them according to the size of the work area or changes in the construction stage. During secondary construction, safety hazards often arise because protective facilities are prematurely removed or damaged and not promptly restored. Secondly, they cannot meet the needs of multiple working conditions. In nuclear power plant construction, scenarios such as installation inside the nuclear island, construction of the containment dome, and isolation of nuclear fuel buildings have different requirements for the scope, direction, and intensity of protection. Existing devices often only provide a single mode of protection and cannot achieve rapid switching between multiple forms such as folding, bending, and flat laying, nor can they flexibly convert between lateral and top protection. Thirdly, they lack the ability to cope with special working conditions. For oblique operations such as the installation of nuclear island penetrations, there is a lack of adaptable structures with adjustable angles; for low-visibility environments such as nighttime construction, there is a lack of integrated designs for lighting and warning functions. Therefore, there is an urgent need for a multi-mode protective device for building construction that can adjust the structure, function, and direction of the protective surface according to the different needs of nuclear power operations and building construction. Summary of the Invention

[0004] To address the problems existing in the background technology, a protective device for building construction is proposed, which realizes cross-scenario application from special working conditions of nuclear power plants to conventional building construction. While improving construction efficiency, it significantly reduces safety risks, reflecting the technological progress of "one machine for multiple uses and precise adaptation" in the field of engineering protection.

[0005] This invention proposes a protective device for building construction, comprising a protective frame, a base, and protective components. Two sets of protective frames are provided, and the protective surface can be folded, bent, and laid flat by rotating their opposite ends. The base is located on the opposite ends of the two sets of protective frames, and its position can be adjusted by lifting and rotating. The protective components are correspondingly installed on the two sets of protective frames, facing outwards when the two sets of protective frames are folded. Each protective component includes a flipping component and a translating component. The flipping component is controlled by a pull-out component and flips outwards on the protective frame. Two sets of translating components are provided, translating on either side of the flipping component. The structure and function of the protective surface can be changed through the folding and laying flat of the protective frame and the flipping and translating of the protective components.

[0006] Preferably, the protective frame is provided with an installation groove for installing the flipping component; the two sides of the installation groove are provided with notches for the translation component to move, the top is provided with a connector for connecting the two sets of protective frames, and the bottom is provided with a notch for installing the base; the connector includes a limiting block located at the end of the protective frame; the connecting strip is located between the two sets of protective frames, and the connecting strip is provided with a transverse groove for the limiting block to slide and rotate; a clamping device for acting on the protective frame is provided on the outside of the transverse groove.

[0007] Preferably, the flipping component includes a flipping frame with one end rotatably connected to the bottom of the mounting groove; the other end of the flipping frame cooperates with the pull-out component; a protective net is set on the side of the flipping frame close to the mounting groove; and two sets of translation components are located at the left and right ends of the side of the flipping frame away from the mounting groove.

[0008] Preferably, the pull-out component includes a winding roller; one end of a rope is wound on the winding roller; the other end of the rope passes through the protective frame, extends from its top, and connects to the top of the flip frame; the rope is located on both sides of the protective net.

[0009] Preferably, the left and right sides of the flip frame are provided with through grooves opposite to notch one; the front and rear sides are provided with limit grooves; the translation component includes a frame composed of a set of pull bars, two sets of translation bars in opposite positions and a set of limit bars; the frame slides horizontally along the through grooves, and a second protective net is provided inside the frame; the end of the limit bar is slidably connected to the limit groove; the pull bar matches notch one.

[0010] Preferably, LED lighting fixtures are installed on the flip frame; reflective warning strips are affixed to protective net one and protective net two.

[0011] Preferably, a buffer groove is provided on the side of the frame near the mounting groove; a buffer airbag is provided inside the buffer groove.

[0012] Preferably, the pull bar is provided with a through hole; the notch is provided with a slot opposite to the position of the through hole; a spring and a block connected to the spring are provided in the slot and slide in and out of the slot and the through hole.

[0013] Preferably, the base includes a lifting cylinder that is rotatably mounted on the second notch on a vertical plane; the piston rod end of the lifting cylinder is connected to the top of the lifting rod; a support frame is provided at the bottom of the lifting rod; the support frame has an L-shaped structure, with one end rotatably connected to the lifting rod along the horizontal plane.

[0014] Preferably, each set of protective frames has two sets of bases at the bottom.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: This invention significantly improves the safety and adaptability of building construction in nuclear power plant environments through an integrated multi-mode design. In nuclear power plant environments, the device can flexibly switch between folded, flat, or bent protective frame forms to meet the specific needs of different scenarios, such as installation inside the nuclear island, containment dome construction, nuclear fuel plant isolation, and penetration installation. Combined with the coordinated adjustment of flipping and translating components, it achieves comprehensive coverage from lateral to top protection. With the multi-dimensional adjustability of the base, the device can be stably deployed on curved walls or inclined working surfaces. This dynamic configuration of multiple working modes not only solves the problem of single-function and poor adaptability of protective devices for building construction in complex nuclear power environments, but also effectively copes with falling objects and lateral impacts through structural optimizations such as enhanced rope tension and energy absorption by buffer airbags, providing a safety barrier for building construction that combines high strength and flexibility. In the field of building construction, this device also demonstrates outstanding versatility. For different building types, such as residential and commercial complexes, construction workers can quickly adjust the deployment angle of the protective frame and the extension / retraction of the protective components to meet the full-cycle protection needs from foundation excavation and main structure construction to decoration and finishing stages. For example, in confined spaces, a folding mode and asymmetrical protective layout can be used to avoid interfering with adjacent operations; in areas with overlapping operations, the tilting design of the flipping components and the extension function of the translating components can be used to construct an efficient falling object collection and isolation system. Furthermore, during nighttime operations, the integration of lighting fixtures and reflective warning strips further enhances construction safety in low-visibility conditions. This invention integrates structural innovation with a multi-mode switching mechanism, enabling cross-scenario applications from special nuclear power plant conditions to conventional building construction. While improving construction efficiency, it significantly reduces safety risks, demonstrating the technological advancement of "one machine for multiple uses and precise adaptation" in the field of engineering protection. Attached Figure Description

[0016] Figure 1 Diagram of the folded state of protective devices used in building construction (working mode 1); Figure 2 Diagram of the folded state of protective devices used in building construction (Working Mode 2); Figure 3 The protective device for construction is in its folded state. Figure 1 (Work Mode 3); Figure 4 The protective device for construction is in its folded state. Figure 2 (Work Mode 3); Figure 5 A diagram showing the folded state of protective devices used in building construction (working mode four). Figure 6 A diagram showing the folded state of protective devices used in building construction (working mode 5); Figure 7 This is a breakdown diagram of working mode 3 (perspective 1). Figure 8 for Figure 7 Enlarged view of point A in the middle; Figure 9 This is a breakdown diagram of working mode three (perspective two). Figure 10 for Figure 9 Enlarged view of point B in the middle; Figure 11 for Figure 9 Enlarged view of point C in the middle; Reference numerals: 1. Protective frame; 101. Mounting slot one; 102. Notch one; 103. Locking block; 104. Locking groove; 105. Notch two; 106. Limiting block; 107. Connecting strip; 2. Base; 201. Lifting cylinder; 202. Lifting rod; 203. Support frame; 3. Protective components; 301. Flipping component; 30101. Flipping frame; 30102. Protective net one; 30103. Buffer groove; 30104. Buffer airbag; 302. Translation component; 30201. Translation strip; 30202. Limiting strip; 30203. Pulling strip; 30204. Protective net two; 30205. Through hole; 30206. Limiting groove; 30207. Through groove; 4. Pulling and releasing component; 401. Rope; 402. Winding roller. Detailed Implementation

[0017] Example 1, as Figures 1-6 As shown, this invention proposes a protective device for building construction, including a protective frame 1, a base 2, and protective components 3. Two sets of protective frames 1 are provided, and the protective surface can be folded, bent, and laid flat by rotating their opposite ends. The base 2 is located on the opposite ends of the two sets of protective frames 1, and its position can be adjusted by lifting and rotating. The protective components 3 are correspondingly installed on the two sets of protective frames 1, and face outwards when the two sets of protective frames 1 are folded. The protective components 3 include a flipping component 301 and a translating component 302. The flipping component 301 is controlled by a pull-out component 4 and flips outwards on the protective frame 1. Two sets of translating components 302 are provided, and they translate on both sides of the flipping component 301. Through the folding and laying flat of the protective frame 1 and the flipping and translating of the protective components 3, the structure and function of the protective surface can be changed.

[0018] like Figure 7 As shown, the protective frame 1 is provided with an installation groove 101 for mounting the flipping component 301; the two sides of the installation groove 101 are provided with notches 102 for the translation component 302 to move, the top is provided with a connector for connecting the two sets of protective frames 1, and the bottom is provided with a notch 205 for mounting the base 2; the connector includes a limiting block 106 located at the end of the protective frame 1; the connecting strip 107 is located between the two sets of protective frames 1, and the connecting strip 107 is provided with a transverse groove for the limiting block 106 to slide and rotate; a clamping device for acting on the protective frame 1 is provided on the outside of the transverse groove.

[0019] It should be further noted that the locking device includes a positioning pin; the protective frame 1 is provided with a positioning hole. After folding or laying flat and adjusting into position, the positioning pin can be inserted into the positioning hole to achieve locking.

[0020] When switching between folding and laying flat on the protective frame 1, first loosen the clamps, then use the limiting blocks 106 on both sets of protective frames 1 to engage with the transverse grooves to achieve the switch. Finally, secure the protective frame 1 with the clamps. When both sets of protective frames 1 are folded, their protective surface is the size of a single set of protective frames 1, with multiple sets of protective components 3 stacked for protection. When both sets of protective frames 1 are laid flat, their protective surface is the size of both sets of protective frames 1, with a single layer of protective components 3 providing protection. In both modes, the protective device can be placed vertically or horizontally, and the corresponding protection direction can be front, back, sides, or adjusted to face upwards. The protection range, strength, and direction can all be adjusted as needed.

[0021] like Figure 8 As shown, the flipping component 301 includes a flipping frame 30101 with one end rotatably connected to the bottom of the mounting groove 101; the other end of the flipping frame 30101 cooperates with the pull-out component 4; the protective net 30102 is set on the side of the flipping frame 30101 close to the mounting groove 101; and the two sets of translation components 302 are located at the left and right ends of the side of the flipping frame 30101 away from the mounting groove 101.

[0022] The flip frame 30101 can be located inside the mounting slot 101 or flipped out of the mounting slot 101, and the protective net 30102 moves synchronously to meet different protection needs.

[0023] like Figures 9-10 As shown, the pull-out component 4 includes a winding roller 402 that is driven to rotate by a motor; one end of a rope 401 is wound on the winding roller 402; the other end of the rope 401 passes through the protective frame 1, extends from its top, and connects to the top of the flip frame 30101.

[0024] It should be further noted that rope 401 is located on both sides of protective netting 30102.

[0025] When the protective surface needs to be adjusted, the rotating winding roller 402 driven by the motor can drive the flipping frame 30101 to rotate synchronously. The ropes 401 on both sides can also provide tension to the flipping frame 30101, ensuring its load-bearing and impact resistance when an object falls.

[0026] It should be further explained that the left and right sides of the flip frame 30101 are provided with through grooves 30207 opposite to notch 102; the front and rear sides are provided with limiting grooves 30206; the translation component 302 includes a frame composed of a set of pull bars 30203, two sets of translation bars 30201 in opposite positions and a set of limiting bars 30202; the frame slides horizontally along the through grooves 30207, and a second protective net 30204 is provided inside the frame; the end of the limiting bar 30202 is slidably connected to the limiting groove 30206; the pull bar 30203 matches the notch 102.

[0027] It should be further explained that the two sets of limiting strips 30202 are fixed by magnetic attraction.

[0028] When the protective surface needs to be extended, the frame is pulled out from both sides by pulling strip 30203. Protective netting 30204 slides out simultaneously, and limiting strip 30202 limits the frame, thereby extending the protective surface to meet different protection needs.

[0029] It should be further noted that LED lighting fixtures are installed on the flip frame 30101; reflective warning strips are affixed to the protective nets 30102 and 30204.

[0030] It should be further explained that a buffer groove 30103 is provided on the side of the frame near the mounting groove 101; a buffer airbag 30104 is provided inside the buffer groove 30103; when the flipping frame 30101 flips outward, the buffer airbag 30104 faces outward (away from the protective frame 1), which can buffer falling objects from above and reduce the impact force. When the flipping frame 30101 flips inward, the buffer airbag 30104 faces inward (closer to the protective frame 1), which can buffer lateral impacts and reduce the impact force.

[0031] It should be further explained that the pull bar 30203 is provided with a through hole 30205; the notch 102 is provided with a slot 104 opposite to the through hole 30205; a spring is provided in the slot 104 and a locking block 103 connected to the spring and sliding in and out of the slot 104 and the through hole 30205; when the flip frame 30101 flips inward, the locking block 103 engages with the through hole 30205, thus fixing the protective component 3. When the flip frame 30101 flips outward, the locking block 103 disengages from the through hole 30205, thus allowing the protective component 3 to move.

[0032] like Figure 11As shown, the base 2 includes a lifting cylinder 201 that is rotatably mounted on the notch 105 on the vertical plane; the piston rod end of the lifting cylinder 201 is connected to the top of the lifting rod 202; and a support frame 203 is provided at the bottom of the lifting rod 202.

[0033] It should be further explained that the support frame 203 has an L-shaped structure, with one end rotatably connected to the lifting rod 202 along the horizontal plane.

[0034] By setting the lifting cylinder 201 to rotate in the vertical plane and the support frame 203 to rotate in the horizontal plane, the angle of the base 2 can be adjusted synchronously according to the structure of the protective surface. For example, Mode 1 (such as...) Figure 1 The protective frame 1 is folded down, and the protective components 3 on both sides are stowed away, in mode two (e.g.) Figure 2 The protective frame 1 folds, and the protective components 3 on both sides or one side unfold. In both modes, protection is provided from both sides. The support frames 203 on both sides can be symmetrically arranged to form an outward octagonal structure. Mode 3 (e.g.) Figures 3-4 When the protective frame 1 is folded, and the single-sided protective component 3 is flipped and unfolded, one side can be placed against the wall, and the corresponding support frame 203 can be rotated to a horizontal position to fit against the corner of the wall, allowing the protective frame 1 to provide support and protection for the wall. When the protective component 3 is flipped and unfolded to the outside, the outer support frame 203 rotates to a horizontal position facing forward, forming a similar frame shape with the inner support frame 203 to improve the stability of the device. Mode 4 (e.g.) Figure 5 Protective frame 1 unfolds to a horizontal position, and the two sets of protective components 3 retract, mode five (e.g.) Figure 6 The protective frame 1 unfolds to a horizontal position, and two or one set of protective components 3 unfold. The lifting cylinders 201 all flip downwards from their horizontal position, and the support frames 203 on both sides are symmetrical, forming an outward-facing octagonal structure. The lifting cylinders 201 can also adjust the height of the device to meet protective requirements. Note that the protective modes are not limited to the above; the protective frame 1 can also be bent for protection.

[0035] It should be further noted that each set of protective frames 1 has two sets of bases 2 at its bottom.

[0036] Example 2: Based on the construction protection devices described in the above examples, this example proposes a construction protection method for nuclear power plant operations, with the following steps: The first step is the construction preparation phase. Based on the protection requirements of the nuclear power plant work area (such as the internal structure of the nuclear island, the containment construction area, and nuclear auxiliary buildings), the location and orientation of the protective devices are determined. The lifting cylinder 201 is rotated to a suitable angle on notch 105, and the extension length of the lifting rod 202 is adjusted to bring the device to the predetermined height. The rotating support frame 203 is rotated in the horizontal plane. For construction on the curved walls of the nuclear island, the support frame 203 is adjusted to an "outward-facing" structure to conform to the curvature of the wall, ensuring the stability of the device. For inclined work surfaces such as the nuclear island dome, the lifting height of different bases 2 is adjusted to keep the protective frame 1 horizontal. Depending on the size of the nuclear power plant work area, the two sets of protective frames 1 are pushed so that the limiting block 106 slides along the transverse groove of the connecting strip 107. For small-scale operations (such as the installation of internal pipelines in the nuclear island), the two sets of protective frames 1 are folded, with the protective surface the size of a single set of protective frames 1. For large-scale operations (such as the installation of containment wall panels), the two sets of protective frames 1 are laid flat, expanding the protective surface to the size of two sets of protective frames 1. After adjustment, insert the positioning pin into the positioning hole to lock it in place.

[0037] Next, the multi-mode protection configuration phase begins, selecting the appropriate working mode based on different nuclear power operation scenarios. Modes 1 and 2 are suitable for on-site protection during nuclear island pipeline welding, cable laying, and other construction activities: The two sets of protective frames 1 are kept folded, and the control rope 401 via the pull-release component 4 drives the flipping frame 30101 of the flipping component 301 to flip from the outside of the protective frame 1 into the installation slot 101; after flipping into place, the locking block 103 automatically engages with the through hole 30205 of the pull bar 30203 under the action of the spring, fixing the position of the flipping component 301; the protective assembly 3 can be unfolded or retracted as needed, while the support frame 203 of the base 2 is adjusted to a symmetrical outward octagonal structure to enhance stability; a buffer airbag 30104 is installed in the buffer slot 30103 to absorb lateral impact energy. Mode 3 is the containment dome construction protection mode, applicable to the installation of nuclear island containment dome templates, rebar binding, concrete pouring, etc.: Fold the two sets of protective frames 1, with one side of the protective component 3 facing outward; flip the one side flipping component 301 to a horizontal state to form top protection; unfold the translation component 302 on that side to expand the top protection area; place the device against the wall (containment wall), rotate the corresponding side support frame 203 to the horizontal section to fit the angle between the wall and the ground, and rotate the opposite side support frame 203 to the horizontal section facing forward, forming a frame support structure with the inner support frame 203; when the flipped frame 30101 faces outward, the buffer airbag 30104 faces upward to buffer falling objects from the dome. Mode 4 is a large-area isolation and protection mode for nuclear fuel plants, suitable for locations requiring large-area protection such as nuclear fuel operation areas and new fuel storage areas: Loosen the clamps and unfold the two sets of protective frames 1 to a horizontal state (laid flat); flip the flipping component 301 and fold it up using the pull-out component 4, keeping the protective net 30102 in the installation slot 101; keep the two side translation components 302 in the folded state, and the protective surface is a single-layer large-area protection; flip the lifting cylinder 201 from the horizontal state to face downwards, and the two side support frames 203 symmetrically form an outward octagonal structure; adjust the protection height according to the nuclear fuel operation height using the lifting cylinder 201; set up nuclear radiation warning signs around the protective device. Mode 5 is a cross-operation isolation and protection mode, which is suitable for multi-type three-dimensional cross-operation areas: unfold the two sets of protective frames 1 to the horizontal; unfold the protective components 3 on one or both sides, and at the same time pull out the translation component 302 to expand the protection area; adjust the lifting cylinder 201 to keep the upper part of the protective device at a safe distance (not less than 2 meters) from the upper working platform; the angle of the flipping frame 30101 can also be adjusted by the rope 401 to make it tilted at 15°-30°, so that the falling object can slide to the designated collection area.Mode 6 is the protection mode for nuclear island penetration installation, which is suitable for installation in special parts such as containment penetrations and equipment gates: the two sets of protective frames 1 are bent to form an L-shaped protective surface; the protective components 3 on the folded side are flipped and unfolded to cover the outer area of ​​the penetration; the protective components 3 on the unfolded side are retracted to leave operating space for the penetration installation; the relative angle of the two sets of protective frames 1 is finely adjusted by the cooperation of the limiting block 106 and the transverse groove to adapt to the oblique installation requirements of the penetration; the lifting height and rotation angle of each base 2 are adjusted to keep the device stable on the uneven nuclear island foundation. Mode 7 is a protection mode for nighttime and confined space operations, suitable for dark environments inside the nuclear island; depending on the size of the space, the protective frame 1 can be folded or laid flat; LED lighting fixtures are installed on the flip frame 30101 and fixed by the limiting groove 30206; the angle of the flip component 301 is adjusted so that the lighting covers the work area; reflective warning strips are affixed to the protective net 1 30102 and the protective net 2 30204; for narrow passages inside the nuclear island, an asymmetrical protection mode is adopted, with one side of the protective component 3 unfolded and the other side retracted.

[0038] Regarding the special protection requirements for nuclear power operations, enhanced measures need to be taken. When used in the radiation control area of ​​the nuclear island, radiation shielding material should be covered on the outside of protective net 30102 and protective net 30204, and radiation shielding medium should be filled in the buffer airbag 30104. "Radiation Area" warning signs and dose monitoring information boards should be hung in prominent positions on the protective devices. At the same time, a cleaning and decontamination procedure for the protective devices entering and leaving the radiation control area should be established. Adaptive adjustments are made for special operations: During welding operations, fireproof cloth is laid on the protective net, fire extinguishers are placed near the base 2, and the air circuit of the lifting cylinder 201 is isolated and protected; During grinding and cutting operations, anti-splash baffles are installed on the side of the flipping frame 30101, and the second protective net 30204 is replaced with a dense fireproof net; During large-item hoisting operations, the two sets of protective frames 1 are laid flat and connected to form an integrated protective platform, the counterweight of the base 2 is strengthened, and a safe distance of more than 10 meters is maintained from the hoisting operation area; During cross-operations, upper and lower layers of protection are set up, with the upper layer using protective components 3 to prevent falling objects and the lower layer using buffer airbags 30104 to reduce impact.

[0039] Finally, acceptance and monitoring are conducted. The reliability of the locking mechanism is checked to ensure that the limit block 106 is not loose within the transverse groove; the flipping flexibility of the flipping component 301 is tested, the tension of the rope 401 is uniform, and the braking reliability of the winding roller 402 is verified; the smooth extension and retraction of the translation component 302 is verified, and the sliding stability of the limit strip 30202 within the limit groove 30206 is verified; the flexibility of each rotating joint of the base 2, the airtightness of the lifting cylinder 201, and the stability of the support frame 203 in contact with the ground are checked. During construction, a dedicated safety officer continuously checks the status of the protective devices; when the working surface height changes, the protective height is adjusted synchronously via the lifting cylinder 201; when the working range changes, the protective devices are reconfigured according to the above mode switching steps; the air pressure of the buffer airbag 30104 is checked before each day's work to ensure it is in normal working condition; during construction within the nuclear island, the intelligent safety helmet system and active collision avoidance system are used for coordinated monitoring to achieve personnel positioning and hazard warning within the protected area.

[0040] Through the aforementioned multi-mode protection methods, this device can meet the protection needs of various complex scenarios in nuclear power plant construction, such as nuclear island interior installation, containment dome construction, nuclear fuel plant isolation, and penetrating component installation. It achieves adjustability in protection range, intensity, and direction, effectively improving the level of safety management in nuclear power plant construction.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A protective device for construction work, characterized in that, include: The protective frame (1) is set in two sets, and the protective surface can be folded, bent and laid flat by rotating the opposite ends; The base (2) is set on the opposite ends of the two sets of protective frames (1) and its position is adjusted by lifting and rotating. And protective components (3), which are set one-to-one on the two sets of protective frames (1) and face outwards when the two sets of protective frames (1) are folded; The protective component (3) includes a flipping component (301) and a translating component (302); the flipping component (301) is controlled by the pull-out component (4) to flip outward on the protective frame (1); two sets of translating components (302) are provided, which translate on both sides of the flipping component (301); The structure and function of the protective surface can be changed by folding and laying the protective frame (1) and flipping and translating the protective components (3).

2. The protective device for construction work according to claim 1, characterized in that, The protective frame (1) is provided with a mounting groove (101) for installing the flipping component (301); the mounting groove (101) is provided with notches (102) on both sides for the translation component (302) to translate, the top is provided with a connector for connecting two sets of protective frames (1), and the bottom is provided with notches (105) for installing the base (2). The connector includes a limiting block (106) located at the end of the protective frame (1); a connecting strip (107) is located between the two sets of protective frames (1), and a transverse groove is provided on the connecting strip (107) for the limiting block (106) to slide and rotate; a clamping device is provided on the outside of the transverse groove to act on the protective frame (1).

3. The protective device for construction work according to claim 2, characterized in that, The flipping component (301) includes a flipping frame (30101) with one end rotatably connected to the bottom of the mounting groove (101); the other end of the flipping frame (30101) cooperates with the pull-out component (4); the protective net (30102) is set on the side of the flipping frame (30101) close to the mounting groove (101); and the two sets of translation components (302) are located on the left and right ends of the side of the flipping frame (30101) away from the mounting groove (101).

4. The protective device for construction work according to claim 3, characterized in that, The pull-out component (4) includes a winding roller (402); one end of a rope (401) is wound on the winding roller (402); the other end of the rope (401) passes through the protective frame (1), extends from its top, and connects to the top of the flip frame (30101); Rope (401) is located on both sides of protective netting (30102).

5. The protective device for construction work according to claim 3, characterized in that, The left and right sides of the flip frame (30101) are provided with through grooves (30207) opposite to the notch one (102); the front and rear sides are provided with limit grooves (30206). The translation component (302) includes a frame consisting of a set of pull bars (30203), two sets of translation bars (30201) in opposite positions, and a set of limiting bars (30202); the frame slides horizontally along the through groove (30207), and a second protective net (30204) is provided inside the frame; the end of the limiting bar (30202) is slidably connected to the limiting groove (30206); the pull bar (30203) matches the notch (102).

6. The protective device for construction work according to claim 5, characterized in that, LED lighting fixtures are installed on the flip frame (30101); reflective warning strips are affixed to the first protective net (30102) and the second protective net (30204).

7. The protective device for construction work according to claim 5, characterized in that, A buffer groove (30103) is provided on the side of the frame near the mounting groove (101); a buffer airbag (30104) is provided inside the buffer groove (30103).

8. The protective device for construction work according to claim 5, characterized in that, A through hole (30205) is provided on the pull bar (30203); a slot (104) is provided on the notch (102) opposite to the position of the through hole (30205); a spring and a block (103) connected to the spring and sliding in and out of the slot (104) and the through hole (30205) are provided in the slot (104).

9. The protective device for construction work according to claim 2, characterized in that, The base (2) includes a lifting cylinder (201) that is rotatably mounted on the notch two (105) on the vertical plane; the piston rod end of the lifting cylinder (201) is connected to the top of the lifting rod (202); a support frame (203) is provided at the bottom of the lifting rod (202). The support frame (203) has an L-shaped structure, with one end rotatably connected to the lifting rod (202) along the horizontal plane.

10. The protective device for construction work according to claim 9, characterized in that, Two sets of bases (2) are set at the bottom of each set of protective frames (1).

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