Breakage-free vertical protection fixing device for construction process

Abstract

The invention provides a damage-free vertical protection fixing device used in the construction process, and belongs to the technical field of vertical protection fixing.The damage-free vertical protection fixing device used in the construction process comprises a telescopic frame, a telescopic assembly, a pressing assembly, an elastic belt, a protection net and a safety warning assembly; the telescopic assemblies are arranged in the vertical position and the transverse position of the telescopic frame correspondingly and used for adjusting the length and the width of the telescopic frame and conducting safe locking after adjustment. The size of the telescopic frame is the same as that of an elevator opening, the pressing assembly is arranged on the side, adjacent to the position of the elevator opening, of the telescopic frame, and the pressing assembly is used for being pressed on the side wall of the elevator opening in a buckled mode so that the telescopic frame and the elevator opening can be tightly fixed. Mounting assemblies of the elastic bands are arranged at the four corners of the telescopic frame; the problem that an existing elevator shaft opening protection device is tedious and inconvenient to install can be solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of vertical protection fixing, and in particular, relates to a damage-free vertical protection fixing device used in a construction process. Background Art

[0002] With the rapid development of social economy, the construction of high-rise and super high-rise buildings is increasing day by day. As an indispensable vertical transportation tool in high-rise buildings, the safe operation of elevators is directly related to the safety of people's lives and property. During the construction process, the safety protection of the elevator shaft is particularly important, because the elevator shaft is an important safety hazard point in construction. If there is no effective protective device, it is easy to cause safety accidents such as falling people and falling objects.

[0003] The existing elevator shaft protection usually takes the form of installing guardrails around the shaft opening of the elevator shaft. The guardrails are made of steel pipes, which are heavy, have different spacing and lengths, are not beautiful, and are not firmly connected to the surrounding walls. They are easily displaced and deformed after vibration. Disassembly and assembly are very inconvenient, and are not suitable for rapid construction, relocation and equipment debugging. When encountering elevator shaft openings of different sizes, frequent disassembly and reinstallation may be required.

[0004] In summary, the existing elevator shaft opening protection device has the problem of complicated and inconvenient installation. Summary of the invention

[0005] In view of this, the present invention provides a damage-free vertical protective fixing device for use in a construction process, which can solve the problem that the protective devices of some elevator shaft openings are complicated and inconvenient to install.

[0006] The present invention is achieved in that:

[0007] The present invention provides a damage-free vertical protective fixing device for a construction process, wherein the device comprises a telescopic frame, a telescopic assembly, a pressing assembly, an elastic band, a protective net and a safety warning assembly. The telescopic frame is a square structure, and the telescopic assembly is provided at both the vertical and horizontal positions of the telescopic frame. The telescopic assembly is used to adjust the length and width of the telescopic frame and to perform safety locking after adjustment. The size of the telescopic frame is the same as the size of an elevator entrance, and the pressing assembly is provided on one side of the telescopic frame adjacent to the elevator entrance. The pressing assembly is used to be pressed on the side wall of the elevator entrance by buckling so that the telescopic frame is tightly fixed to the elevator entrance. The four corners of the telescopic frame are provided with mounting assemblies of the elastic band, and the elastic band is fixed on the mounting assembly to close the elevator entrance. The mounting grooves of the protective net are provided at the four sides of the telescopic frame, and the protective net is engaged on the mounting grooves to form a mesh structure inside the telescopic frame to ensure the safety of the elevator entrance and prevent it from falling. The safety warning assembly is provided on the side of the telescopic assembly away from the elevator entrance, and the safety warning assembly is used to perform safety warnings through lights to prevent danger from occurring at the elevator entrance.

[0008] The technical effects of the damage-free vertical protective fixing device for use in the construction process provided by the present invention are as follows: (1) The protective fixing device can significantly reduce the risk of construction workers or pedestrians accidentally falling into the elevator shaft, thereby ensuring the safety of personnel.

[0009] (2) This protective device is designed for quick installation, which greatly improves the installation efficiency of the protective device and reduces the construction time. It is also convenient for quick disassembly when needed.

[0010] (3) The protective fixture is designed with an adjustable function, which can adapt to elevator openings of different sizes and make corresponding adjustments to meet the needs of different scenarios.

[0011] (4) The protective fixture is equipped with a safety warning component that can alert pedestrians in dimly lit environments, further enhancing the safety protection effect.

[0012] (5) A large area of ​​the elevator entrance is covered with a protective net, which not only prevents pedestrians from falling, but also provides a buffer in the event of a fall, reducing injuries.

[0013] (6) The clamping assembly is used for fixing and clamping, which avoids punching holes in the wall during the fixing process, protects the wall and reduces labor intensity.

[0014] (7) The telescopic frame is adjustable and can be used for walls of different thicknesses and elevator openings of different widths, and has good practicality.

[0015] (8) It is a detachable assembly mode, which is more convenient to carry and install, and is especially suitable for use in places with narrow corridor space.

[0016] On the basis of the above technical solution, the damage-free vertical protective fixing device for construction process of the present invention can also be improved as follows:

[0017] Wherein, the telescopic frame includes a cross bar and a vertical bar, the cross bar is formed by connecting and fixing a plurality of solid bars at both ends of the telescopic assembly, and the vertical bar is formed by connecting and fixing a plurality of solid bars at both ends of the telescopic assembly. The number of the cross bars and the vertical bars is determined according to the width and height of the elevator entrance, and the number of the telescopic assembly is determined according to the number of the cross bars and the vertical bars.

[0018] Furthermore, the telescopic assembly includes a fixed rod, an electromagnetic repulsion member and a connecting member, the fixed rod is a hollow circular tube structure on both sides, and its center position is set as a solid structure; the cross bar and the vertical rod are correspondingly arranged at the two ends of the fixed rod, and the electromagnetic repulsion member is arranged inside the fixed rod, and electromagnetically repel the cross bar and the end of the vertical rod close to the electromagnetic repulsion member to determine the structural length of the cross bar, the vertical rod and the fixed rod connected to each other; the connecting member is provided at the position where the fixed rod is connected to the cross bar and the vertical rod, and the connecting member is used to press the connection position of the fixed rod with the corresponding cross bar and the vertical rod through the spring compression force to ensure the stability of the cross bar and the vertical rod connected to the telescopic assembly.

[0019] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by adjusting the length of the telescopic frame through the principle of electromagnetic repulsion, the electromagnetic force can provide precise and controllable thrust, thereby realizing precise adjustment of the overall length of the telescopic frame with higher precision and better repeatability. Electromagnetic repulsion does not involve mechanical contact and friction, so it will not cause wear, extend the service life of the component, and reduce maintenance costs. The electromagnetic force has a fast response speed, which can realize fast and dynamic length adjustment to adapt to changing environments and needs. By controlling the current of the coil, the length of the telescopic component can be remotely controlled, which is convenient for operation and management, especially in situations where direct operation is difficult.

[0020] Furthermore, the electromagnetic repulsion element includes a base, a first coil, a second coil and a repulsion plate. The base is rectangular, one end of which is fixed to one side of the solid structure inside the fixed rod, and the other end is wound with the first coil, the first coil is a hollow cylindrical coil made of enameled copper wire, and is used to generate a first variable magnetic field; the second coil is wound on the horizontal bar or the vertical bar adjacent to the base, and is also a hollow cylindrical coil made of enameled copper wire, and is used to generate a second variable magnetic field; the first coil and the second coil are coaxially arranged, and the repulsion plate is a circular thick sheet, located between the first coil and the second coil, and is used to be repelled by the magnetic field generated by the first coil and the second coil; a spring damper is connected between one end of the base and one end of the corresponding horizontal bar or vertical bar, which is made of stainless steel, one end of which is fixed to the base, and the other end is fixed to the corresponding horizontal bar or vertical bar, and is used to suppress vibration; the first coil and the second coil are respectively connected to a power supply; a reflective mark is provided at the edge of the repulsion plate, which is used to cooperate with an external photoelectric sensor to determine its precise position.

[0021] The beneficial effect of adopting the above-mentioned improved scheme is that there is interaction between the two magnetic fields. When the two magnetic fields are the same, the magnetic field interaction generates repulsion, and when the two magnetic fields are opposite, the magnetic field interaction generates attraction. The repulsion between the first coil and the second coil is used to adjust the length of the telescopic frame. By controlling the current intensity of the coil, the intensity of the magnetic field can be adjusted, thereby changing the intensity of the magnetic field interaction.

[0022] By moving the reflective marker, the change in the magnitude of the repulsive force can be visually observed, making it easy for operators to monitor and detect the status of the system. Since the moving position of the marker directly reflects the change in the magnitude of the repulsive force, the repulsive force can be precisely controlled by adjusting the position of the marker.

[0023] Furthermore, a heat sink is provided on one side of the base away from the first coil, for timely heat dissipation to prevent the coil assembly from overheating; the heat sink is a fish scale structure;

[0024] An insulating layer is arranged on the outer wall of the fixing rod and the outer walls of the cross rod and the vertical rod to prevent leakage.

[0025] Further, the connecting member includes a spiral rod, a connecting ear and a connecting spring, a through hole is provided at a corresponding position of the cross rod or the vertical rod, the spiral rod is screwed into the through hole to form a sealing structure with the cross rod or the vertical rod, the connecting ear is provided at the center position of the fixed rod, the connecting spring is connected between the spiral rod and the connecting ear, and the connecting spring is used to tighten the connection between the telescopic assembly and the telescopic frame, and the direction of the tightening force is parallel to the direction of the repulsive force of the electromagnetic repulsion member inside the corresponding fixed rod;

[0026] A through hole is provided at a position corresponding to the spiral rod and the connecting ear, and the through hole is used to insert a vertical rod. The vertical rod is a steel bar, which is inserted into the spiral rod and the connecting ear to ensure the horizontality of the connection position between the telescopic assembly and the corresponding telescopic frame.

[0027] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the connector can effectively fix the telescopic frame and the telescopic assembly to prevent them from accidentally falling off during operation, thereby ensuring the stability and safety of the system. The structural strength between the telescopic frame and the telescopic assembly can be enhanced, thereby improving the overall durability and reliability of the system.

[0028] Furthermore, the clamping assembly is a U-shaped structure, one end of which is connected to the side wall of the telescopic assembly, and the other end extends in a specified shape toward the direction close to the elevator entrance, and a compression spring is arranged inside the U-shaped structure to ensure the stability of the clamping of the clamping assembly; the clamping assembly is made of high-hardness memory metal;

[0029] A hook is arranged at a position of the cross bar near the elevator entrance, and the hook is hooked to the top of the inner wall of the elevator entrance, so as to further ensure the stability of the protective fixing device.

[0030] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the clamping assembly has a certain elasticity, can be quickly installed on the elevator entrance, and can also be quickly disassembled, which simplifies the installation steps and helps to improve work efficiency.

[0031] Furthermore, the elastic band includes a double-layer structure, which is respectively arranged on both sides of the protective net to fix the protective net and prevent it from falling; and the installation component is a safety belt structure.

[0032] The beneficial effect of adopting the above-mentioned improvement scheme is that the first layer of elastic belt can prevent the protective net from falling into the elevator shaft, ensuring that pedestrians and workers will not be in danger due to the falling of the protective net.

[0033] The second layer of elastic band can enhance the overall structural strength of the protective net, enabling it to withstand greater loads and external forces. The reinforced protective net can better absorb impact when it contacts objects, reducing the impact on other equipment and personnel. The reinforced protective net is more stable, reducing swaying and shaking during use, and improving the stability of the system.

[0034] Furthermore, the installation groove is an M-shaped structure, and the two ends of the protective net are buckled into the corresponding installation grooves to form a mesh structure.

[0035] Furthermore, the safety warning component includes a touch sensor, an LED lamp and a reflective prism. The LED lamp is arranged inside the telescopic frame and connected to a power supply. The reflective prism is arranged between adjacent LED lamps. The reflective prism is used to reflect the light emitted by the LED lamp to expand its lighting area. The touch sensor is arranged on the surface of the telescopic frame to sense the presence of an object.

[0036] The beneficial effect of adopting the above-mentioned improvement scheme is that when a person accidentally approaches the dangerous area of ​​the elevator entrance, the touch sensor can be triggered immediately, and the touch signal can be transmitted to the construction monitoring personnel, so that the staff can deal with the dangerous situation in time. The LED light can remind the construction personnel and other personnel to pay attention to the potential dangers in the elevator entrance area and increase the visual effect through the reflective prism to attract the attention of the construction personnel and other personnel.

[0037] Compared with the prior art, the beneficial effects of the damage-free vertical protective fixing device for construction provided by the present invention are:

[0038] (1) The protective fixing device can significantly reduce the risk of construction workers or pedestrians accidentally falling into the elevator shaft, thereby ensuring the safety of personnel.

[0039] (2) This protective device is designed for quick installation, which greatly improves the installation efficiency of the protective device and reduces the construction time. It is also convenient for quick disassembly when needed.

[0040] (3) The protective fixture is designed with an adjustable function, which can adapt to elevator openings of different sizes and make corresponding adjustments to meet the needs of different scenarios.

[0041] (4) The protective fixture is equipped with a safety warning component that can alert pedestrians in dimly lit environments, further enhancing the safety protection effect.

[0042] (5) A large area of ​​the elevator entrance is covered with a protective net, which not only prevents pedestrians from falling, but also provides a buffer in the event of a fall, reducing injuries.

[0043] (6) The clamping assembly is used for fixing and clamping, which avoids punching holes in the wall during the fixing process, protects the wall and reduces labor intensity.

[0044] (7) The telescopic frame is adjustable and can be used for walls of different thicknesses and elevator openings of different widths, and has good practicality.

[0045] (8) It is a detachable assembly mode, which is more convenient to carry and install, and is especially suitable for use in places with narrow corridor space. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0047] Figure 1 It is a structural schematic diagram of a damage-free vertical protective fixing device used in a construction process;

[0048] Figure 2 A schematic diagram of the internal structure of a telescopic component of a damage-free vertical protective fixture used in a construction process;

[0049] Figure 3 A front view of a clamping assembly of a damage-free vertical protective fixture for a construction process;

[0050] Figure 4 A side view of a damage-free vertical protective fixture for use in a construction process;

[0051] Figure 5 A schematic diagram of a damage-free vertical protection fixture coil for a construction process;

[0052] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0053] 10. Telescopic frame; 11. Crossbar; 12. Vertical bar; 20. Telescopic assembly; 21. Fixed rod; 22. Electromagnetic repulsion member; 221. Base; 222. First coil; 223. Second coil; 224. Repulsion plate; 23. Connecting member; 231. Screw rod; 232. Connecting ear; 233. Connecting spring; 30. Clamping assembly; 40. Elastic band; 50. Protective net; 60. Safety warning assembly; 61. Touch sensor; 62. LED light; 63. Reflective prism. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0055] like Figure 1-5 As shown, it is an embodiment of a damage-free vertical protective fixing device for a construction process provided by the present invention. In this embodiment, it includes a telescopic frame 10, a telescopic component 20, a clamping component 30, an elastic belt 40, a protective net 50 and a safety warning component 60. The telescopic frame 10 is a square structure, and the telescopic components 20 are arranged at its vertical and horizontal positions. The telescopic components 20 are used to adjust the length and width of the telescopic frame 10 and to be safely locked after adjustment; the size of the telescopic frame 10 is the same as that of the elevator entrance, and a clamping component 30 is arranged on one side adjacent to the elevator entrance. The clamping component 30 is used to clamp the telescopic frame 10 by buckling. The telescopic frame 10 is tightly fixed to the side wall of the elevator entrance; the four corners of the telescopic frame 10 are provided with mounting components of the elastic belt 40, and the elastic belt 40 is fixed on the mounting components to close the elevator entrance; the telescopic frame 10 is provided with mounting grooves of the protective net 50 around the periphery, and the protective net 50 is engaged in the mounting groove to form a mesh structure inside the telescopic frame 10 to ensure the safety of the elevator entrance and prevent it from falling; the side of the telescopic component 20 away from the elevator entrance is provided with a safety warning component 60, and the safety warning component 60 is used to provide safety warnings through lights to prevent danger at the elevator entrance.

[0056] Among them, in the above technical scheme, the telescopic frame 10 includes a horizontal bar 11 and a vertical bar 12. The horizontal bar 11 is formed by connecting multiple sections of solid bars at both ends of the telescopic component 20 and fixing them. The vertical bar 12 is formed by connecting multiple sections of solid bars at both ends of the telescopic component 20 and fixing them. The number of the horizontal bars 11 and the vertical bars 12 is determined according to the width and height of the elevator entrance, and the number of the telescopic components 20 is determined according to the number of the horizontal bars 11 and the vertical bars 12.

[0057] Furthermore, in the above technical scheme, the telescopic assembly 20 includes a fixed rod 21, an electromagnetic repulsion member 22 and a connecting member 23. The fixed rod 21 is a hollow circular tube structure on both sides, and its center position is set as a solid structure; the horizontal bar 11 and the vertical bar 12 are correspondingly arranged at the two ends of the fixed rod 21, and the electromagnetic repulsion member 22 is arranged inside the fixed rod 21, and electromagnetically repel the end of the horizontal bar 11 and the vertical bar 12 close to the electromagnetic repulsion member 22 to determine the structural length composed of the interconnected horizontal bars 11, the vertical bars 12 and the fixed rod 21; a connecting member 23 is provided at the position where the fixed rod 21 is connected to the horizontal bar 11 and the vertical bar 12, and the connecting member 23 is used to press the connection position of the fixed rod 21 with the corresponding horizontal bar 11 and the vertical bar 12 through the spring compression force to ensure the stability of the horizontal bar 11 and the vertical bar 12 connected to the telescopic assembly 20.

[0058] Furthermore, in the above technical solution, the electromagnetic repulsion element 22 includes a base 221, a first coil 222, a second coil 223 and a repulsion plate 224. The base 221 is rectangular, one end of which is fixed to one side of the solid structure inside the fixed rod 21, and the other end is wound with the first coil 222. The first coil 222 is a hollow cylindrical coil made of enameled copper wire, which is used to generate a first variable magnetic field; the second coil 223 is wound on the horizontal bar 11 or the vertical bar 12 adjacent to the base 221, and is also a hollow cylindrical coil made of enameled copper wire, which is used to generate a second variable magnetic field; the first coil 222 and the second coil 223 are simultaneously The repulsion plate 224 is a circular thick sheet, located between the first coil 222 and the second coil 223, and is used to be repelled by the magnetic field generated by the first coil 222 and the second coil 223; a spring damper is connected between one end of the base 221 and one end of the corresponding horizontal bar 11 or vertical bar 12, which is made of stainless steel, one end of which is fixed on the base 221, and the other end is fixed on the corresponding horizontal bar 11 or vertical bar 12, and is used to suppress vibration; the first coil 222 and the second coil 223 are respectively connected to the power supply; the edge position of the repulsion plate 224 is provided with a reflective mark, which is used to cooperate with an external photoelectric sensor to determine its precise position.

[0059] The telescopic assembly 20 is a transparent structure.

[0060] Furthermore, in the above technical solution, a heat sink is provided on one side of the base 221 away from the first coil 222, for timely heat dissipation to prevent the coil assembly from overheating; the heat sink is a fish scale structure;

[0061] An insulating layer is provided on the outer wall of the fixing rod 21 and the outer walls of the horizontal rod 11 and the vertical rod 12 to prevent leakage.

[0062] Further, in the above technical solution, the connecting member 23 includes a spiral rod 231, a connecting ear 232 and a connecting spring 233. A through hole is provided at the corresponding position of the horizontal rod 11 or the vertical rod 12. The spiral rod 231 is screwed into the through hole to form a sealing structure with the horizontal rod 11 or the vertical rod 12. A connecting ear 232 is provided at the center position of the fixed rod 21. A connecting spring 233 is connected between the spiral rod 231 and the connecting ear 232. The connecting spring 233 is used to tighten the connection between the telescopic assembly 20 and the telescopic frame 10. The direction of the tightening force is parallel to the direction of the repulsive force of the electromagnetic repulsion member 22 inside the corresponding fixed rod 21.

[0063] A through hole is provided at the position corresponding to the spiral rod 231 and the connecting ear 232, and the through hole is used to insert a vertical rod, which is a steel bar, inserted into the spiral rod 231 and the connecting ear 232 to ensure the horizontality of the connection position between the telescopic assembly 20 and the corresponding telescopic frame 10.

[0064] Further, in the above technical solution, the clamping assembly 30 is a U-shaped structure, one end of which is connected to the side wall of the telescopic assembly 20, and the other end extends in a predetermined shape toward the direction close to the elevator entrance. A compression spring is arranged inside the U-shaped structure to ensure the stability of the clamping assembly 30; the clamping assembly 30 is made of high-hardness memory metal;

[0065] A hook is provided at a position of the cross bar 11 near the elevator entrance, and the hook is hooked to the top of the inner wall of the elevator entrance to further ensure the stability of the protective fixing device.

[0066] Furthermore, in the above technical solution, the elastic band 40 includes a double-layer structure, which is respectively arranged on both sides of the protective net 50 to fix the protective net 50 and prevent the protective net 50 from falling; the mounting component is a safety belt structure.

[0067] Furthermore, in the above technical solution, the installation groove is an M-shaped structure, and the two ends of the protective net 50 are buckled into the corresponding installation grooves to form a mesh structure.

[0068] Furthermore, in the above technical solution, the safety warning component 60 includes a touch sensor 61, an LED lamp 62 and a reflective prism 63. The LED lamp 62 is arranged inside the telescopic frame 10 and connected to a power supply. Reflective prisms 63 are arranged between adjacent LED lamps 62. The reflective prisms 63 are used to reflect the light emitted by the LED lamp 62 to expand its lighting area. The touch sensor 61 is arranged on the surface of the telescopic frame 10 to sense the presence of an object.

[0069] When in use, the telescopic frame 10 is installed on the door frame of the elevator door, and the telescopic frame 10 is buckled on the door frame through the clamping assembly 30; the relative lengths of the horizontal bar 11 and the vertical bar 12 extending into the telescopic assembly 20 are adjusted to ensure that the telescopic frame 10 completely covers the door frame. Different currents are passed through the first coil 222 and the second coil 223 respectively, and different electric fields are generated on the first coil 222 and the second coil 223, ensuring that the two generated electric fields are mutually exclusive; as the current changes, the intensity of the electric field changes accordingly, and the relative distance between the telescopic frame 10 and the base 221 changes. The repelling plate 224 can clearly and intuitively convert the change in electric field intensity into mechanical motion. When a pedestrian accidentally falls to the elevator entrance, the protective net 50 will buffer to prevent the pedestrian from falling from the elevator shaft. The safety warning component 60 emits light to warn pedestrians to further reduce the risk of dangerous situations.

[0070] Specifically, the principle of the present invention is: when in use, the telescopic frame 10 is installed on the door frame of the elevator door, and the telescopic frame 10 is buckled on the door frame through the clamping assembly 30; the relative length of the horizontal bar 11 and the vertical bar 12 extending into the telescopic assembly 20 is adjusted to ensure that the telescopic frame 10 completely covers the door frame. Different currents are passed through the first coil 222 and the second coil 223 respectively, and different electric fields are generated on the first coil 222 and the second coil 223 to ensure that the two generated electric fields are mutually exclusive; as the current changes, the intensity of the electric field changes accordingly, and the relative distance between the telescopic frame 10 and the base 221 changes. The repelling plate 224 can clearly and intuitively convert the change in electric field intensity into mechanical motion. When a pedestrian accidentally falls to the elevator entrance, the protective net 50 will buffer to prevent the pedestrian from falling from the elevator shaft. The safety warning component 60 emits light to the pedestrian to further reduce the risk of dangerous situations.

[0071] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A damage-free vertical protective fixing device for a construction process, characterized in that: The invention comprises a telescopic frame (10), a telescopic assembly (20), a pressing assembly (30), an elastic band (40), a protective net (50) and a safety warning assembly (60); the telescopic frame (10) is a square structure, and the telescopic assembly (20) is arranged at both the vertical and horizontal positions of the telescopic frame; the telescopic assembly (20) is used to adjust the length and width of the telescopic frame (10) and to perform safety locking after adjustment; the size of the telescopic frame (10) is the same as the size of the elevator entrance; the pressing assembly (30) is arranged on one side adjacent to the elevator entrance; the pressing assembly (30) is used to be pressed on the side wall of the elevator entrance by buckling so that the telescopic frame (10) is in contact with the elevator entrance. The telescopic frame (10) is tightly fixed; the four corners of the telescopic frame (10) are provided with mounting components of the elastic band (40), and the elastic band (40) is fixed on the mounting components to close the elevator entrance; the four sides of the telescopic frame (10) are provided with mounting grooves of the protective net (50), and the protective net (50) is engaged with the mounting grooves to form a mesh structure inside the telescopic frame (10) to ensure the safety of the elevator entrance and prevent it from falling; the side of the telescopic component (20) away from the elevator entrance is provided with the safety warning component (60), and the safety warning component (60) is used to provide a safety warning through lights to prevent danger from occurring at the elevator entrance.

2. The damage-free vertical protection fixing device for construction process according to claim 1 is characterized in that: The telescopic frame (10) comprises a cross bar (11) and a vertical bar (12); the cross bar (11) is formed by connecting a plurality of sections of solid bars at two ends of the telescopic assembly (20) and fixing them; the vertical bar (12) is formed by connecting a plurality of sections of solid bars at two ends of the telescopic assembly (20) and fixing them; the number of the cross bars (11) and the vertical bars (12) is determined according to the width and height of the elevator entrance; and the number of the telescopic assemblies (20) is determined according to the number of the cross bars (11) and the vertical bars (12).

3. The damage-free vertical protection fixing device for construction process according to claim 2 is characterized in that: The telescopic assembly (20) comprises a fixed rod (21), an electromagnetic repulsion member (22) and a connecting member (23); the fixed rod (21) is a hollow circular tube structure at both sides, and the center position is set as a solid structure; the cross bar (11) and the vertical rod (12) are correspondingly arranged at the two ends of the fixed rod (21); the electromagnetic repulsion member (22) is arranged inside the fixed rod (21) and performs electromagnetic repulsion with the ends of the cross bar (11) and the vertical rod (12) close to the electromagnetic repulsion member (22) to determine mutual The structure length of the connected cross bar (11), the vertical bar (12) and the fixed bar (21); the connecting piece (23) is arranged at the position where the fixed bar (21) is connected with the cross bar (11) and the vertical bar (12); the connecting piece (23) is used to press the connecting position of the fixed bar (21) and the corresponding cross bar (11) and the vertical bar (12) through the spring compression force to ensure the stability of the cross bar (11) and the vertical bar (12) connected by the telescopic component (20).

4. The damage-free vertical protection fixing device for construction process according to claim 3 is characterized in that: The electromagnetic repulsion element (22) comprises a base (221), a first coil (222), a second coil (223) and a repulsion plate (224); the base (221) is rectangular, one end of which is fixed to one side of the solid structure inside the fixed rod (21), and the other end of which is wound with the first coil (222); the first coil (222) is a hollow cylindrical coil wound from enameled copper wire, and is used to generate a first variable magnetic field; the second coil (223) is wound on the horizontal rod (11) or the vertical rod (12) adjacent to the base (221), and is also a hollow cylindrical coil wound from enameled copper wire, and is used to generate a second variable magnetic field; the first coil (222) and the second coil (223) are coaxially arranged, and the repulsion plate (224) is provided with a plurality of repulsion plates (224). (224) is a circular thick plate, located between the first coil (222) and the second coil (223), and is used to be repelled by the magnetic field generated by the first coil (222) and the second coil (223); a spring damper is connected between one end of the base (221) and one end of the corresponding cross bar (11) or the vertical bar (12), and is made of stainless steel, one end of which is fixed on the base (221) and the other end is fixed on the corresponding cross bar (11) or the vertical bar (12), and is used to suppress vibration; the first coil (222) and the second coil (223) are respectively connected to a power source; a reflective mark is provided on the edge of the repelling plate (224), which is used to cooperate with an external photoelectric sensor to determine its precise position.

5. The damage-free vertical protection fixing device for construction process according to claim 4 is characterized in that: A heat sink is provided on a side of the base (221) away from the first coil (222) for timely heat dissipation to prevent the coil assembly from overheating; the heat sink is a fish scale structure; An insulating layer is provided on the outer wall of the fixing rod (21) and the outer walls of the cross rod (11) and the vertical rod (12) to prevent electric leakage.

6. The damage-free vertical protection fixing device for construction process according to claim 5 is characterized in that: The connecting member (23) comprises a spiral rod (231), a connecting ear (232) and a connecting spring (233); a through hole is provided at a corresponding position of the cross rod (11) or the vertical rod (12); the spiral rod (231) is screwed into the through hole to form a sealing structure with the cross rod (11) or the vertical rod (12); the connecting ear (232) is provided at the center position of the fixed rod (21); the connecting spring (233) is connected between the spiral rod (231) and the connecting ear (232); the connecting spring (233) is used to tighten the connection between the telescopic assembly (20) and the telescopic frame (10); the direction of the tightening force is parallel to the direction of the repulsive force of the electromagnetic repulsive member (22) inside the corresponding fixed rod (21); A through hole is provided at a position corresponding to the spiral rod (231) and the connecting ear (232), and the through hole is used to insert a vertical rod, wherein the vertical rod is a steel bar and is inserted into the spiral rod (231) and the connecting ear (232) to ensure the horizontality of the connection position between the telescopic assembly (20) and the corresponding telescopic frame (10).

7. The damage-free vertical protection fixing device for construction process according to claim 6 is characterized in that: The clamping assembly (30) is a U-shaped structure, one end of which is connected to the side wall of the telescopic assembly (20), and the other end extends in a predetermined shape toward the direction close to the elevator entrance. A compression spring is arranged inside the U-shaped structure to ensure the stability of the clamping of the clamping assembly (30); the clamping assembly (30) is made of a high-hardness memory metal material; The cross bar (11) is provided with a hook near the elevator entrance, and the hook is hooked to the top of the inner wall of the elevator entrance, so as to further ensure the stability of the protective fixing device.

8. The damage-free vertical protection fixing device for construction process according to claim 7 is characterized in that: The elastic band (40) comprises a double-layer structure, which is respectively arranged on both sides of the protective net (50) to fix the protective net (50) and prevent the protective net (50) from falling; and the installation component is a safety belt structure.

9. The damage-free vertical protection fixing device for construction process according to claim 8, characterized in that: The installation groove is an M-shaped structure, and the two ends of the protection net (50) are buckled into the corresponding installation grooves to form a mesh structure.

10. The damage-free vertical protection fixing device for construction process according to claim 9, characterized in that: The safety warning component (60) comprises a touch sensor (61), an LED lamp (62) and a reflective prism (63); the LED lamp (62) is arranged inside the telescopic frame (10) and connected to a power source; the reflective prism (63) is arranged between adjacent LED lamps (62); the reflective prism (63) is used to reflect light emitted by the LED lamp (62) to expand its illumination area; the touch sensor (61) is arranged on the surface of the telescopic frame (10) and is used to sense the presence of an object.

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