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CN-121983871-A - Block terminal protection method for building construction site

CN121983871ACN 121983871 ACN121983871 ACN 121983871ACN-121983871-A

Abstract

The invention provides a protection method of a distribution box for a construction site, which belongs to the technical field of distribution boxes for construction and comprises the following steps of S1, collecting and recording multidimensional environment parameters of a construction area, evaluating risk indexes, planning installation points of the distribution box, S2, selecting and executing an adaptive scheme from historical projects according to the risk indexes obtained in S1, S3, arranging a protection shed integrated with a sensor and a fire extinguishing mechanism outside the installation points of the distribution box, S4, installing the distribution box in an installed protection by adopting a three-point leveling method, filling elastic sealant in a gap between a box body and the ground to form a first buffer and sealing layer, adopting an inner-outer layered blocking method to process cable wire passing holes, S5, using a double-track inspection mechanism to carry out inspection, and adjusting a protection strategy according to inspection results and external data input, thereby solving the problem that the protection scheme lacks pertinence before installation, and the protection structure cannot be inspected and reinforced in time.

Inventors

  • DONG WENJUN
  • ZHENG HONGXIANG
  • HUANG QIAN
  • YIN JIAN
  • ZHANG LONG
  • WANG YINGTAO

Assignees

  • 中国建筑第二工程局有限公司

Dates

Publication Date
20260505
Application Date
20251225

Claims (10)

  1. 1. The utility model provides a block terminal protection method for building construction scene which characterized in that includes the following steps: s1, before the distribution box (4) and the distribution box protective shed (1) are installed, collecting and recording multidimensional environmental parameters of a construction area, evaluating risk indexes, and planning installation points of the distribution box (4); s2, selecting and executing an adaptive scheme from the history items according to the risk index obtained in the step S1; S3, arranging a protective shed (1) integrated with a sensor (3) and a fire extinguishing mechanism (2) outside the installation point of the distribution box (4); S4, installing a distribution box (4) in the installed protection shed (1) by adopting a three-point leveling method, calibrating by using a level meter, immediately filling elastic sealant at a gap between the box body and the ground after leveling to form a first buffer and sealing layer, and treating cable through holes by adopting a layering plugging method from inside to outside; s5, carrying out inspection by using a double-track inspection mechanism, and adjusting a protection strategy according to inspection results and external data input.
  2. 2. The method for protecting a distribution box for a construction site according to claim 1, wherein the multidimensional environmental parameters in the step S1 comprise a topography elevation of a mounting point and a drainage condition; major job types and risk classes within 50 meters of the perimeter; And acquiring historical meteorological data for the area.
  3. 3. The method according to claim 2, wherein the risk index in step S1 is that the site safety personnel matches the current environmental parameter with the history project file, directly refers to the project data verified in the history scene as the risk index of the present time, and generates the risk index of the installation point, wherein the risk index at least includes a waterproof grade, an anti-impact grade, and a fireproof grade.
  4. 4. The protection method of the distribution box for the construction site according to claim 1, wherein the protection shed (1) in the step S3 comprises a main frame (11), a top plate (12) installed at the top of the main frame (11), a bottom frame (13) installed at the bottom of the main frame (11), and a fire extinguishing mechanism (2) and a sensor (3) installed on the top plate (12), the main frame (11) is formed by splicing a plurality of steel pipes, the shape of the main frame is matched with the shape of the distribution box (4), gaps for air circulation are kept between the distribution box (4), L-shaped support rods (14) are connected between the steel pipes of the main frame (11) through short steel pipe bolts, the bottom frame (13) is formed by connecting a plurality of steel pipe bolts and is in a grid shape, and the bottom frame (13) is installed on the ground through bolts.
  5. 5. The protection method of the distribution box for the construction site according to claim 4, wherein the four sides of the top plate (12) are respectively provided with an expansion baffle (15), the expansion baffles (15) are connected with the top plate (12) through movable hinges, at least two movable hinges are arranged between one expansion baffle (15) and the top plate (12), long bolts/screws are arranged between the movable hinges on the same side, and the section of the expansion baffle (15) is of a triangle design.
  6. 6. The method for protecting a distribution box for a construction site according to claim 5, wherein the sensor (3) and the fire extinguishing mechanism (2) are mounted on the inner side of the top plate (12) through bolts and located above the distribution box (4), the sensor (3) comprises a temperature sensor (3) and a smoke sensor (3), the fire extinguishing mechanism (2) comprises a feeding pipe (21) connected with a fire extinguishing agent storage box, a fire extinguishing agent spray head (23), a release pipeline (22) located between the fire extinguishing agent spray head (23) and the feeding pipe (21) and a solenoid valve (24) arranged between the fire extinguishing agent spray head (23) and the release pipeline (22), the feeding pipe (21) penetrates through the top of the main frame (11) and is in threaded fit with the main frame (11), and the fire extinguishing agent spray head (23) and the solenoid valve (24) are connected with the top plate (12) through a mounting frame (26) through bolts.
  7. 7. The method for protecting the distribution box for the construction site according to claim 6, wherein signal wires of the temperature sensor (3) and the smoke sensor (3) are directly led to a special linkage control box (25), the linkage control box (25) is arranged on one side of the electromagnetic valve (24), the output end of the linkage control box (25) is directly connected to a shunt tripping coil of the distribution box (4) which is always empty and the electromagnetic valve (24), and the linkage control box (25) comprises a multi-path relay or a plurality of independent relays and auxiliary components.
  8. 8. The method for protecting a distribution box for a construction site according to claim 1 or 4, wherein the operation procedure of sealing the cable through-hole in step S4 is as follows: s41, uniformly coating long-acting waterproof glue on the inner wall of the wire passing hole; s42, selecting a matched rubber sheath or a threaded sealing joint for installation according to the diameter of the cable; and S43, finally, insulating cement is used outside the connector for secondary wrapping and shaping, so that rainwater is prevented from flowing back along the cable.
  9. 9. The method for protecting a distribution box for a construction site according to claim 1, wherein the dual-track inspection mechanism in step S5 specifically comprises: Conventional inspection is carried out once every 7 days, and whether the sealant is aged and cracked, whether the structure of the protective shed (1) is stable and whether the function of the sensor (3) is normal are mainly inspected; Event-driven inspection is necessary to perform a special inspection within 24 hours after the completion of preset high-risk operations (such as foundation pit excavation, concrete pouring, steel structure hoisting and large-scale demolition), and the structural deformation or sealing damage of the box body is mainly evaluated.
  10. 10. The method for protecting the distribution box for the construction site according to claim 9, wherein the external data input in the step S5 is characterized in that an entity weather early warning terminal is arranged in a safe duty room of the construction site, the terminal is directly connected to a data interface of a local weather bureau through a wired network, weather forecast and disaster early warning for 1-6 hours in the future are received and displayed in real time, and a security officer manually starts a temporary reinforcement checking instruction according to the early warning level displayed by the terminal and notifies related personnel to fasten the protection shed (1).

Description

Block terminal protection method for building construction site Technical Field The invention belongs to the technical field of distribution boxes for construction, and particularly relates to a protection method of a distribution box for a building construction site. Background In the construction site, the safety protection of the distribution box is very important. In the prior art, the protection of the distribution box is generally simpler and passive, and common methods comprise the steps of building a simple rain shelter and setting a warning sign. The method cannot evaluate risks and formulate a targeted protection scheme according to specific environmental parameters before installation, has regular protection measures and limited effects, and cannot inspect and strengthen a protection structure in time after a high-risk period or before severe weather comes, so that potential safety hazards exist. Therefore, the protection method of the distribution box for the construction site can be adjusted according to environmental parameters and weather. Disclosure of Invention The embodiment of the invention provides a protection method for a distribution box for a building construction site, which solves the problem that a protection structure cannot be checked and reinforced in time after a high-risk period or before severe weather comes due to the lack of a targeted protection scheme before installation. In view of the above problems, the technical scheme provided by the invention is as follows: The invention provides a protection method of a distribution box for a building construction site, which comprises the following steps: S1, before a distribution box and a protection shed of the distribution box are installed, collecting and recording multidimensional environmental parameters of a construction area, evaluating risk indexes, and planning installation points of the distribution box; s2, selecting and executing an adaptive scheme from the history items according to the risk index obtained in the step S1; s3, installing a protective shed outside the distribution box planning installation point, wherein the protective shed is integrated with a sensor and a fire extinguishing mechanism in linkage; S4, then, installing the distribution box in the installed protection shed by adopting a three-point leveling method, calibrating by using a level meter, immediately filling elastic sealant in a gap between the box body and the ground after leveling to form a first buffer and sealing layer, and adopting a layering plugging method from inside to outside to treat cable wire passing holes to finish final installation and fixation of the distribution box in the protection shed; S5, a double-track system inspection mechanism based on the construction progress is established for inspection, and a protection strategy is dynamically adjusted according to inspection results and external data input. As a preferable technical scheme of the invention, the multidimensional environmental parameters in the step S1 comprise the relief elevation of the installation point and the drainage condition; major job types and risk classes within 50 meters of the perimeter; And acquiring historical meteorological data for the area. As a preferable technical scheme of the invention, the risk index in the step S1 is that a site safety person matches the current environmental parameter with the history project file, directly references the project data verified in the history scene as the risk index of the time, and generates the risk index of the installation point, wherein the risk index at least comprises a waterproof grade, an anti-impact grade and a fireproof grade. As a preferable technical scheme of the invention, the protective shed in the step S3 comprises a main frame, a top plate arranged at the top of the main frame, a bottom frame arranged at the bottom of the main frame, and a fire extinguishing mechanism and a sensor arranged on the top plate, wherein the main frame is formed by splicing a plurality of steel pipes, the appearance of the main frame is matched with that of a distribution box, a gap for air circulation is kept between the main frame and the distribution box, L-shaped supporting rods are connected between the steel pipes of the main frame through bolts, the supporting rods are connected through short steel pipe bolts, the bottom frame is formed by connecting a plurality of steel pipe bolts and is in a grid shape, and the bottom frame is arranged on the ground through bolts. As a preferable technical scheme of the invention, four sides of the top plate are respectively provided with an expansion baffle, the expansion baffles are connected with the top plate through movable hinges, at least two movable hinges are arranged between one expansion baffle and the top plate, long bolts/screws are arranged between the movable hinges on the same side, and the section of the expansion baffle is of a triangle design. As