Machining die special for lightning protection lightning receiving belt fixing support

Abstract

The utility model relates to the technical field of building lightning protection air-termination belt installation engineering, in particular to a machining die special for a lightning protection air-termination belt fixing support, which comprises a bottom plate and a positioning plate, the positioning plate is fixed on the bottom plate by adopting electric welding according to a set position, and the lightning protection air-termination belt fixing support can be machined according to the specific implementation mode. According to the application, the problem of construction nodes of the lightning receiving belt at the periphery of the building roof since the implementation of the Building Lightning Protection Design Specification GB 50057-2010 is solved; the lightning receiving belt installed on the fixing support can meet the technical requirement specified by the specification that the lightning receiving belt should be arranged on the outer surface of an outer wall or the vertical face of an eave edge and can also be arranged outside the outer surface of the outer wall or the vertical face of the eave edge.

Description

Technical Field

[0001] The present application relates to the technical field of lightning protection strip installation engineering for buildings, and in particular to a special processing mold for a lightning protection strip fixing bracket. Background Art

[0002] Articles 4.2.4, 4.3.1 and 4.4.1 of the Code for Lightning Protection Design of Buildings GB 50057-2010 stipulate that when the height of the first, second and third type lightning protection buildings exceeds 30m, 45m and 60m, lightning conductors should be laid along the perimeter of the roof. The lightning conductors should be installed on the outer surface of the exterior wall or the vertical surface of the eaves, or they can be installed outside the outer surface of the exterior wall or the vertical surface of the eaves. However, for more than ten years, there has been no corresponding standard atlas, nor any applicable standardized special processing molds and construction processes. Engineering design and construction personnel usually draw and construct according to their own cognition and experience, and the quality of the project is difficult to guarantee.

[0003] The special processing mold for the lightning protection lightning termination strip fixing bracket and the corresponding processing technology can standardize the on-site production of the fixing bracket, make the lightning termination strip installation and positioning accurate, thereby improving the project quality, solving the construction node problem of the lightning termination strip around the building roof since the implementation of GB 50057-2010, and meeting the requirements of the national standard. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] When the height of the first, second and third type lightning protection buildings exceeds 30m, 45m and 60m, if the lightning conductors installed around the roof do not meet the requirements of Article 4.2.4, Article 4.3.1 and Article 4.4.1 of GB 50057-2010, lightning strikes around the roof of the building may cause concrete and other hard objects to fall, resulting in personal injury. In order to standardize the installation process and construction quality of lightning conductors around the roofs of buildings of the above heights and ensure that the buildings are effectively protected when struck by lightning, this application first provides a "Schematic diagram of the installation of lightning conductor fixing brackets on the exterior walls of buildings" ( Fig. 9 ), the lightning protection lightning rod fixing bracket adopts hot-dip galvanized round steel with a diameter of 10mm. On this basis, a "special processing mold for lightning protection lightning rod fixing bracket" is specially designed, a schematic diagram of the fixing bracket processing is drawn, and a special processing mold and corresponding processing technology for the building exterior wall lightning rod fixing bracket that meet the requirements of the specification are provided, which solves the problem of construction nodes of roof perimeter lightning rods since the release and implementation of GB 50057-2010.

[0006] (II) Technical solution

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A special processing mold for a lightning protection strip fixing bracket, comprising a base plate and a plurality of positioning plates, wherein the positioning plates are welded and fixed to the base plate at set positions; the base plate is 500 mm long, 250 mm wide, and 30 mm high, and is made of tool steel; the positioning plates are 50 mm long, 20 mm wide, and 30 mm high, and are made of tool steel; the long side of the first positioning plate is parallel to the short side of the base plate, the upper edge of the first positioning plate is 45 mm from the upper edge of the base plate, and the left side of the first positioning plate is 30 mm from the left side of the base plate; the long side of the second positioning plate is parallel to the short side of the base plate, the upper edge of the second positioning plate is 45 mm from the upper edge of the base plate, and the left side of the second positioning plate is 12 mm from the right side of the first positioning plate; the third positioning plate The long side of the plate is 45° to the short side of the base plate, the upper right corner of the third positioning plate is 59.28mm away from the right side of the base plate, and the lower right corner of the third positioning plate is 254.43mm away from the bottom of the base plate; the long side of the fourth positioning plate is 45° to the short side of the base plate, the upper right corner of the fourth positioning plate is 36.66mm away from the right side of the base plate, and the lower right corner of the fourth positioning plate is 231.80mm away from the bottom of the base plate; the interval between the third positioning plate and the fourth positioning plate is 12mm; the long side of the fifth positioning plate is parallel to the short side of the base plate, the right side of the fifth positioning plate is 99mm away from the right side of the base plate, and the lower edge of the fifth positioning plate is 127.10mm away from the lower edge of the base plate; the vertical spacing between the fifth positioning plate and the fourth positioning plate is 49.24mm.

[0009] (III) Beneficial effects

[0010] 1. Reduce consumables, save costs, and promote carbon emission reduction

[0011] According to Table 5.1.2 of GB 50601-2010: When flat steel is used as a fixed support, the installation spacing should be 500mm; when round steel is used as a fixed support, the installation spacing should be 1000mm. The cross-sectional area of ​​a round steel with a diameter of 10mm is approximately 78.5mm 2 , the cross-sectional area of ​​25mm×4mm flat steel is 100mm 2 In other words, the consumables when using flat steel as a fixing bracket are about 2.5 times that of round steel. The lightning protection strip fixing bracket uses round steel with a diameter of 10mm, which reduces consumables, saves costs, and is conducive to carbon emission reduction in construction projects.

[0012] 2. Standardize the requirements for on-site production of fixed brackets to improve work efficiency and construction quality

[0013] At present, there are usually two materials used for lightning rods and fixing brackets on the outer walls around building roofs: round steel with a diameter of 10mm and flat steel with a diameter of 25mm×4mm. There are also cases where the lightning rods are made of flat steel and the fixing brackets are made of round steel, with the same specifications.

[0014] Conventional installation method of fixed bracket: After the exterior wall around the roof is completed, the round steel is directly inserted into the wall and fixed by drilling holes at the top of the exterior wall, and the flat steel is fixed at the top of the exterior wall by expansion bolts. At this time, the finished surface of the fixed bracket is in the middle of the exterior wall or slightly outside, and the installation position of the lightning rod is located in the middle of the upper part of the wall, which cannot meet the provisions of Articles 4.2.4, 4.3.1, and 4.4.1 of GB50057-2010: "The lightning rod should be installed on the outer surface of the exterior wall or the vertical surface of the eaves, or it can be installed outside the outer surface of the exterior wall or the vertical surface of the eaves."

[0015] The special processing mold for the lightning protection strip fixing bracket and the corresponding processing technology can perfectly solve the above problems and meet the requirements of the current national standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a special processing mold for a lightning protection lightning strip fixing bracket;

[0017] Figure 2 This is a schematic diagram of the original state of the fixed bracket;

[0018] Figure 3 It is a schematic diagram of the welding surface of the fixed bracket and the lightning strip;

[0019] Figure 4 It is a schematic diagram of the segmented processing of the fixed bracket;

[0020] Figure 5 This is a schematic diagram of the original state of the fixed bracket section A;

[0021] Figure 6 This is a schematic diagram of the fixed bracket A section after processing;

[0022] Figure 7 It is a schematic diagram of the original state of the fixed bracket B, C, and D sections;

[0023] Figure 8 This is a schematic diagram of the processing completion status of the fixed bracket B, C, and D sections;

[0024] Fig. 9 This is a schematic diagram of the installation of the fixed bracket of the lightning rod on the exterior wall of the building.

[0025] Explanation of the reference numerals: 1. bottom plate; 2, 3, 4, 5, 6. positioning plate; 11. starting end of the fixed bracket; 12. section A of the fixed bracket; 13. section B of the fixed bracket; 14. section C of the fixed bracket; 15. section D of the fixed bracket; 16. terminal end of the fixed bracket; 101. bending point a of the fixed bracket; 102. bending point b of the fixed bracket; 201. lightning rod; 301. outer surface of the outer wall. DETAILED DESCRIPTION

[0026] The specific implementation of the utility model and the processing process of the lightning protection strip fixing bracket are further described in detail below with reference to the accompanying drawings.

[0027] like Figure 1 As shown, the base plate 1 and the positioning plates 2, 3, 4, 5, 6 of the special processing mold are all made of tool steel. The base plate 1 is 500 mm long, 250 mm wide and 30 mm high. The positioning plates 2, 3, 4, 5, 6 are 50 mm long, 20 mm wide and 30 mm high. The positioning plates 2, 3, 4, 5, 6 are welded and fixed to the base plate 1 at set positions.

[0028] like Figure 2 As shown, the fixed bracket of the lightning protection strip is made of hot-dip galvanized round steel with a diameter of 10 mm, which is divided into four sections: A, B, C, and D. The bending point a101 is located between the fixed bracket section A 12 and the fixed bracket section B 13, and the bending point b102 is located between the fixed bracket section B 13 and the fixed bracket section C 14.

[0029] like Figure 3 As shown, according to Table 4.1.2 of GB 50601-2010, the lap length when round steel is welded to round steel or round steel to flat steel should not be less than 6 times the diameter of the round steel, and the length of the lap joint between the fixed bracket section A 12 and the lightning rod 201 should not be less than 60 mm. Considering factors such as the gap of the bending curvature of the lap joint, the length of the lap joint is considered to be 70 mm.

[0030] like Figures 4 to 6 As shown, the node position of the bending point a101 of the fixed bracket is set as follows: the long side of the positioning plate 2 is parallel to the short side of the base plate 1, the upper edge of the positioning plate 2 is 45 mm away from the upper edge of the base plate 1, and the left side of the positioning plate 2 is 30 mm away from the left side of the base plate 1; the long side of the positioning plate 3 is parallel to the short side of the base plate 1, the upper edge of the positioning plate 3 is 45 mm away from the upper edge of the base plate 1, and the left side of the positioning plate 3 is 12 mm away from the right side of the positioning plate 2; the positioning plates 2 and 3 are used to fix the fixed bracket section A 12, and form the fixed bracket bending point a101 between the fixed bracket section A 12 and the fixed bracket section B 13.

[0031] like Figures 7-8As shown, the node position of the bending point b102 of the fixed bracket is set as follows: the long side of the positioning plate 4 is 45° to the short side of the bottom plate 1, the upper right corner of the positioning plate 4 is 59.28mm from the right side of the bottom plate 1, and the lower right corner of the positioning plate 4 is 254.43mm from the bottom side of the bottom plate 1; the long side of the positioning plate 5 is 45° to the short side of the bottom plate 1, the upper right corner of the positioning plate 5 is 36.66mm from the right side of the bottom plate 1, and the lower right corner of the positioning plate 5 is 231.80mm from the bottom side of the bottom plate 1; the spacing between the positioning plates 4 and 5 is 12mm The positioning plate 4 and the positioning plate 5 are used to fix the fixed bracket segment B 13, the long side of the positioning plate 6 is parallel to the short side of the bottom plate 1, the right side of the positioning plate 6 is 99mm away from the right side of the bottom plate 1, the lower edge of the positioning plate 6 is 127.10mm away from the lower edge of the bottom plate 1, and the vertical spacing between the positioning plate 6 and the positioning plate 5 is 49.24mm. The positioning plate 6 is used to fix the fixed bracket segment B 13 and the fixed bracket segment C 14, and the fixed bracket bending point b102 is formed between the fixed bracket segment B 13 and the fixed bracket segment C 14.

[0032] When the lightning protection strip fixing bracket is processed, the special processing mold should be fixed on a workbench that is convenient for operation, and the following steps should be followed:

[0033] Step 1: If Figure 5 As shown, section A 12 of the hot-dip galvanized round steel with a total length of 351.5 mm to be processed is placed between the positioning plate 2 and the positioning plate 3, so that the starting end 11 is flush with the upper edge of the bottom plate 1 and the bending point a101 is located 5 mm below the bottom edges of the positioning plates 2 and 3. Then, manpower is applied to the round steel from right to left.

[0034] Step 2: If Figure 6 As shown, manpower is continuously applied to the round steel section B 13 to make it parallel to the lower side of the positioning plate 2, and the bending point a101 is processed. At this time, the section A 12 and the section B 13 form a right angle.

[0035] Step 3: If Figure 7 As shown, section A 12 is placed vertically on the base plate 1, and section B 13 is placed between the positioning plates 4 and 5, so that the bending point b102 is located at the upper left corner of the positioning plate 6. At this time, the center point of the bending point a101 is aligned with the center point of the short side above the positioning plates 4 and 5, and then, manpower is applied to the round steel section C 14 from top to bottom.

[0036] Step 4: If Figure 8 As shown, manpower is continuously applied to the round steel section C 14 and section D 15 to make them parallel to the left side of the bottom plate 1, and the bending point b102 is processed. At this time, the angle between section B 13 and section C 14 is 135°.

[0037] Processing suggestion: When processing the fixed bracket, you can prepare a DN15 ordinary steel pipe with a length of about 500mm and put it on the non-fixed end of the round steel to be processed to increase the manpower strength.

[0038] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A special processing mold for a lightning protection strip fixing bracket, comprising a bottom plate (1) and five positioning plates, characterized in that: The positioning plates are welded and fixed on the base plate (1) at set positions; the base plate (1) is 500 mm long, 250 mm wide and 30 mm high, and is made of tool steel; the five positioning plates are 50 mm long, 20 mm wide and 30 mm high, and are made of tool steel; the long side of the first positioning plate (2) is parallel to the short side of the base plate (1), the upper edge of the first positioning plate (2) is 45 mm away from the upper edge of the base plate (1), and the left side of the first positioning plate (2) is 30 mm away from the left side of the base plate (1); the long side of the second positioning plate (3) is parallel to the short side of the base plate (1), the upper edge of the second positioning plate (3) is 45 mm away from the upper edge of the base plate (1), and the left side of the second positioning plate (3) is 12 mm away from the right side of the first positioning plate (2); the long side of the third positioning plate (4) is 45° with the short side of the base plate (1), and the third positioning plate (4) is 45° away from the short side of the base plate (1). The upper right corner of the positioning plate (4) is 59.28 mm from the right side of the bottom plate (1), and the lower right corner of the third positioning plate (4) is 254.43 mm from the bottom edge of the bottom plate (1); the long side of the fourth positioning plate (5) is 45° to the short side of the bottom plate (1), the upper right corner of the fourth positioning plate (5) is 36.66 mm from the right side of the bottom plate (1), and the lower right corner of the fourth positioning plate (5) is 231.80 mm from the bottom edge of the bottom plate (1); the third positioning plate (4) and the fourth positioning plate (5) are spaced 12 mm apart; the long side of the fifth positioning plate (6) is parallel to the short side of the bottom plate (1), the right side of the fifth positioning plate (6) is 99 mm from the right side of the bottom plate (1), and the lower edge of the fifth positioning plate (6) is 127.10 mm from the lower edge of the bottom plate (1); the vertical spacing between the fifth positioning plate (6) and the fourth positioning plate (5) is 49.24 mm.

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