Water tank bridge assembly and installation method

Abstract

The invention relates to the technical field of bridge frames, in particular to a water tank bridge frame assembly and an installation method. Comprising a lower bridge used for arranging cables and a cover type bridge used for draining water, the end portions of the lower bridge are provided with penetrating holes used for penetrating cables, the cover type bridge is arranged on the lower bridge in a covering mode, and the two sides of the lower bridge are connected with fastener mechanisms used for installing the cover type bridge at equal intervals. The drainage diversion mechanism with the upper layer and the lower layer is adopted, drainage efficiency is effectively improved, normal operation of a drainage system is guaranteed, safety and stability of cable laying are also guaranteed, the installation method not only improves construction efficiency and quality and reduces construction cost and maintenance cost, but also prolongs service life of assemblies, and the installation method is suitable for popularization and application. The installation method has the advantages that the installation method is simple, the economic benefit and the social benefit are remarkable, meanwhile, the safety and the stability of cable laying and drainage are improved, and positive influences are brought to the society.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of bridge, in particular to a gutter bridge assembly and installation method. BACKGROUND

[0002] It is commonly used in building roof facilities and photovoltaic industry, the main functions of gutter bridge are drainage and cable management, first, as the water guide structure above the roof facilities or photovoltaic support, it plays a waterproof and drainage effect on the facilities below, reduces the occurrence of water immersion or leakage, this function is very important to protect the building exterior wall from rain erosion; The existing gutter bridge often faces problems such as low drainage efficiency, cable laying disorder, poor stability, low drainage efficiency, easy to cause water accumulation, and further cause short circuit risk, the installation process of gutter bridge has problems such as complex installation, low efficiency, and difficult to guarantee stability, therefore, a gutter bridge assembly and installation method are proposed. SUMMARY

[0003] In view of the shortcomings of the above background art, the purpose of the present application is to provide a sink bridge assembly and installation method, which realizes the integration of cable laying and drainage function through a modular assembly process, greatly improving the construction efficiency and quality, and ensuring the accurate installation and stable operation of the assembly through precise parameter control, such as specification confirmation of the bridge, adaptability detection of the cover bridge, and pre-assembly of the fastener system. The self-locking fastener mechanism realizes quick assembly through mechanical limiting, not only improving the installation speed, but also enhancing the stability and safety of the assembly. The upper and lower layered drainage guide mechanism effectively improves the drainage efficiency and prevents the contact between water flow and wiring space, avoiding the risk of short circuit, realizing efficient, stable and safe cable laying and drainage function, and having significant economic and social benefits. The fastener mechanism realizes quick assembly through mechanical limiting, not only improving the installation speed, but also enhancing the stability and safety of the assembly. The self-locking design enables the fastener to be automatically locked during installation without the need for additional tools or fixtures, thereby simplifying the installation process and reducing the installation difficulty. At the same time, this design also ensures that the fastener will not loosen or fall off during long-term use, ensuring the stability and safety of the bridge system. The upper and lower layered drainage guide mechanism makes the drainage system more efficient and smooth, effectively improving the drainage efficiency. At the same time, the upper and lower layered design also prevents the contact between water flow and wiring space, avoiding the risk of short circuit caused by water flow entering the wiring space. This design not only ensures the normal operation of the drainage system, but also ensures the safety and stability of the cable laying. The installation method of the sink bridge assembly realizes efficient, stable and safe cable laying and drainage function through modular assembly process, precise parameter control, self-locking fastener mechanism and upper and lower layered drainage guide mechanism. This installation method not only improves the construction efficiency and quality, reduces the construction and maintenance costs, but also prolongs the service life of the assembly, has significant economic and social benefits, and at the same time, this installation method also improves the safety and stability of cable laying and drainage, which has a positive impact on society and effectively solves the above problems.

[0004] To solve the above technical problems, the purpose of the present application is achieved as follows: A sink bridge assembly and installation method, comprising a lower bridge for wire arrangement and a cover bridge for drainage, the lower bridge end is provided with a through hole for cable laying, the cover bridge is arranged on the lower bridge, and the lower bridge is connected with a fastener mechanism for installing the cover bridge on both sides; The cover bridge comprises an upper cover plate and an inner bridge for drainage, the upper cover plate is arranged on the top of the lower bridge, the inner bridge is fixedly welded to the bottom of the upper cover plate, a plurality of water holes for rainwater infiltration are formed in the top of the upper cover plate, and the inner bridge is located at the inner top of the lower bridge.

[0005] On the basis of the above scheme and as a preferred scheme of the above scheme: the fastener mechanism comprises a rectangular fastener box, one side of the rectangular fastener box facing the cover type bridge is open, an entering fastener opening is formed on the rectangular fastener box and at the top of the vertical surface of the open side, and a fastener storage cavity is arranged at the bottom of the rectangular fastener box.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the upper cover plate is provided with a fastener sheet corresponding to the rectangular fastener box at equal distances, and an inclined slope surface for lateral sliding of foreign matters is arranged at the top of the upper cover plate.

[0007] A mounting method of a sink bridge assembly, and specific mounting steps are as follows: Step one: installation preparation: 1. The lower bridge is a cold-rolled steel plate lower bridge with a length, width and height of 3000mmx200mmx150mm, a plate thickness of ≥2.0mm, and a bearing capacity of ≥500N / m, and a standard aperture of Φ25mm is adopted for perforation with a spacing of 500mm to meet the bending radius requirement of optical cables; 2. The upper cover plate needs to cover 100% of the area in the width direction of the inner cavity of the lower bridge, and the depth of the inner bridge is 5-10mm smaller than the inner height of the lower bridge to form a dynamic compensation gap to prevent structural deformation caused by thermal expansion and cold contraction; Step two: fastener system pre-assembly: The fastener mechanism is made of 304 stainless steel, the rectangular fastener box has an outer dimension of 80mmx40mmx30mm in length, width and height, the entering fastener opening has a width of 12mm and a depth of 5mm, the fastener sheet has a length and thickness of 10mmx2mm, the entering fastener opening and the fastener sheet form an interference fit of 0.5mm, and the fastener storage cavity has a depth of 20mm to ensure that the axial displacement of the fastener sheet after embedding is ≤0.2mm; Step three: main assembly: Lower bridge positioning and installation: 1. The reference line is laid out according to the design drawing, a three-dimensional coordinate system is established by using a laser level, and the horizontal error is ≤2mm and the longitudinal slope is controlled between 0.3%-0.5%; 2. The lower bridge is fixed by using M10x80 expansion bolts with a spacing of 800mm and a torque value controlled in the range of 35-40N.m. The 45° chamfer splicing process is adopted for the corner parts, the splicing joint is filled with conductive anticorrosive glue, and the contact resistance is ≤0.01Ω; Cover type bridge assembly: 1. The inner bridge and the upper cover plate are welded, the weld height is 4mm, the weld angle size is 6mm, and after welding, PT penetration detection is performed, and the defect display length is ≤1.5mm; 2. A group of rectangular fastener boxes is arranged every 600mm along the length direction of the upper cover plate, and a positioning tooling processed by CNC is used to ensure that the center line of the fastener sheet coincides with the center line of the rectangular fastener box of the lower bridge with a coincidence degree of ≤0.5mm; 3. The buckle is inserted into the buckle opening at an inclination of 30°, and the contact surface is coated with MoS2 lubricant; 4. Apply a horizontal thrust of 50N to make the buckle enter the buckle storage cavity, implement lateral sliding, and press down to realize vertical locking.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: when the width of the lower bridge is greater than or equal to 400mm, a 40*40*4mm angle steel support is selected, and the diameter of the perforation is greater than 20% of the outer diameter of the cable bundle.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the water hole parameter optimization adopts a Φ8mm array hole, the hole spacing is 10-100mm, ensures the drainage efficiency, and can block impurities with a particle size greater than 8mm, the opening rate is controlled between 40%-70%, and the CFD fluid simulation verification is carried out.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the buckle system is subjected to 500 opening and closing cycle tests at room temperature 25±2℃, and the buckle system is required to have a buckle force attenuation rate of less than or equal to 5%; Every 30m sets an expansion joint, the buckle mechanism spacing at the expansion joint is encrypted to 0.3m, the width of the rectangular buckle box buckle opening is increased by 5mm, and a reserved displacement space is provided.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: the inner bridge guide test: inject 5L / min water flow, and verify that the fluid path meets the predetermined route of "water hole, inner bridge water collecting tank and bridge drainage pipe".

[0012] The present application has the following outstanding and beneficial technical effects compared with the prior art: The modular assembly process is adopted, the integration of cable laying and drainage function is realized, the construction efficiency and quality are greatly improved, through precise parameter control, such as specification confirmation of the lower bridge, adaptability detection of the cover type bridge and pre-assembly of the buckle system, accurate installation and stable operation of the assembly are ensured, the self-locking buckle mechanism realizes rapid assembly through mechanical limiting, not only improves the installation speed, but also enhances the stability and safety of the assembly, the upper and lower layered drainage guide mechanism effectively improves the drainage efficiency, prevents the contact between water flow and wiring space, avoids the short circuit risk, realizes efficient, stable and safe cable laying and drainage function, has obvious economic benefit and social benefit, the buckle mechanism realizes rapid assembly through mechanical limiting, not only improves the installation speed, but also enhances the stability and safety of the assembly, the self-locking design enables the buckle to be automatically locked during installation, without additional tools or fixing parts, thereby simplifying the installation process and reducing the installation difficulty.

[0013] At the same time, this design also ensures that the fasteners will not loosen or fall off during long-term use, ensuring the stability and safety of the bridge system. It adopts an upper and lower layered drainage and diversion mechanism. This mechanism design makes the drainage system more efficient and smooth, effectively improving the drainage efficiency. At the same time, the upper and lower layered design also prevents the water flow from contacting the wiring space, avoiding the risk of short circuit caused by water flow invading the wiring space. This design not only ensures the normal operation of the drainage system, but also ensures the safety and stability of cable laying. The installation method of the trough bridge assembly realizes efficient, stable and safe cable laying and drainage functions through modular assembly process, precise parameter control, self-locking fastener mechanism and upper and lower layered drainage and diversion mechanism technical characteristics. This installation method not only improves construction efficiency and quality, reduces construction cost and maintenance cost, but also extends the service life of the component, with significant economic and social benefits. At the same time, this installation method also improves the safety and stability of cable laying and drainage, and brings positive impacts to society. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall diagram of the present invention; Figure 2 An exploded view of the present invention; Figure 3 For the present invention Figure 2 A in the middle is an enlarged schematic diagram; Reference numerals: lower bridge 1, through hole 11, cover bridge 2, upper cover plate 21, water hole 22, buckle piece 23, inner bridge 24, fastener mechanism 3, rectangular buckle box 31, buckle inlet 32, buckle storage cavity 33. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0016] Example 1 As an embodiment of the present invention, Figures 1 to 3 As shown, a water tank bridge assembly and installation method described in the present invention includes a lower bridge 1 for wiring and a cover bridge 2 for drainage. The ends of the lower bridge 1 are each provided with a through hole 11 for threading the cables. The cover bridge 2 is covered on the lower bridge 1. Fastener mechanisms 3 for mounting the cover bridge 2 are equidistantly connected on both sides of the lower bridge 1. The covered bridge frame 2 includes an upper cover plate 21 and an inner bridge frame 24 for drainage. The upper cover plate 21 is covered on the top of the lower bridge frame 1. The inner bridge frame 24 is fixedly welded to the bottom of the upper cover plate 21. Several groups of water holes 22 for rainwater to penetrate are opened on the top of the upper cover plate 21. The inner bridge frame 24 is located at the inner top of the lower bridge frame 1.

[0017] The application further comprises that the fastener mechanism 3 comprises a rectangular fastener box 31, one side of the rectangular fastener box 31 facing the cover type bridge 2 is open, a fastener inlet 32 is arranged on the rectangular fastener box 31 and at the top of the vertical surface of the open side, and a fastener storage cavity 33 is arranged at the bottom of the rectangular fastener box 31.

[0018] The application further comprises that the upper cover plate 21 is provided with a fastener sheet 23 corresponding to the rectangular fastener box 31 at equal distances, and the upper cover plate 21 is provided with an inclined slope surface for lateral sliding of foreign matters at the top.

[0019] A mounting method of a water tank bridge assembly, and specific mounting steps are as follows: Step one: installation preparation 1. The lower bridge 1 adopts a cold-rolled steel plate lower bridge with a length, width and height of 3000mm*200mm*150mm, a plate thickness of greater than or equal to 2.0mm, and a bearing capacity of greater than or equal to 500N / m, and the perforation 11 adopts a standard aperture with a diameter of Φ25mm and a spacing of 500mm, which meets the bending radius requirement of optical cables; 2. The upper cover plate 21 needs to cover 100% of the area in the width direction of the lower bridge inner cavity, and the inner bridge 24 is 5mm shallower than the lower bridge, thereby forming a dynamic compensation gap to prevent structural deformation caused by thermal expansion and cold contraction; Step two: fastener system pre-assembly The fastener mechanism 3 adopts 304 stainless steel material, the rectangular fastener box 31 has an outer dimension with a length, width and height of 80mm*40mm*30mm, the fastener inlet 32 has a width of 12mm and a depth of 5mm, the fastener sheet 23 has a length and a thickness of 10mm*2mm, the fastener inlet 32 and the fastener sheet 23 form an interference fit of 0.5mm, and the fastener storage cavity 33 has a depth of 20mm, which ensures that the axial displacement of the fastener sheet after embedding is less than or equal to 0.2mm; Step three: main assembly Lower bridge positioning and installation 1. The reference line is laid out according to the design drawing, a three-dimensional coordinate system is established by using a laser level, and the horizontal error is less than or equal to 2mm and the longitudinal slope is controlled within 0.3%; 2. The lower bridge is fixed by using M10*80 expansion bolts with a spacing of 800mm and a torque value controlled within 35N*m. The 45° chamfer splicing process is adopted for the corner part, the splicing joint is filled with conductive anticorrosive glue, and the contact resistance is less than or equal to 0.01Ω; Cover type bridge assembly 1. The inner bridge 24 and the upper cover plate 21 are welded, the weld height is 4mm, the weld angle size is 6mm, and the PT penetration detection is performed after welding, and the defect display length is less than or equal to 1.5mm; 2. Set a group of rectangular buckle boxes 31 every 600 mm along the length direction of the upper cover plate 21, and a positioning tool processed by CNC is used to ensure that the center line of the buckle 23 coincides with the center line of the rectangular buckle box 31 of the lower bridge 1 with an overlapping degree of ≤0.5 mm; 3. The buckle is inserted into the buckle opening 32 at an inclination angle of 30°, and the contact surface is coated with MoS2 lubricant; 4. A horizontal thrust of 50 N is applied to make the buckle enter the buckle storage cavity 33, implement horizontal sliding, and press down to realize vertical locking.

[0020] The application also includes that when the width of the lower bridge 1 is ≥400 mm, a 40×40×4 mm angle steel support is selected, and the diameter of the perforation 11 needs to be greater than 20% of the outer diameter of the cable bundle.

[0021] The application also includes that the parameter optimization of the water hole 22 adopts a Φ8 mm array hole to ensure the drainage efficiency and block impurities with a particle size of >8 mm, the opening rate is controlled between 70%, and the CFD fluid simulation verification is passed.

[0022] The application also includes that the buckle system is subjected to 500 opening and closing cycle tests at room temperature 25±2 ℃, and the buckle force attenuation rate is required to be ≤5%; A telescopic joint is arranged every 30 m, the spacing of the buckle mechanism 3 at the telescopic joint is encrypted to 0.3 m, the width of the rectangular buckle box 31 into the buckle opening 32 is increased by 5 mm, and a reserved displacement space is provided.

[0023] The application also includes that the flow guide test of the inner bridge 24: 5 L / min water flow is injected to verify that the fluid path meets the predetermined route of "water hole, inner bridge water collecting tank, and bridge drain pipe".

[0024] Example 2 As an embodiment of the application, as shown in the figure, Figures 1 to 3 The water tank bridge assembly and the installation method, including the lower bridge 1 for cable arrangement and the cover bridge 2 for water drainage, the lower bridge 1 is provided with a perforation 11 for cable threading at the end, the cover bridge 2 is arranged on the lower bridge 1, and the buckle mechanism 3 for installing the cover bridge 2 is arranged at both sides of the lower bridge 1 at equal distances. The cover bridge 2 includes an upper cover plate 21 and an inner bridge 24 for water drainage, the upper cover plate 21 is arranged on the top of the lower bridge 1, the inner bridge 24 is fixedly welded to the bottom of the upper cover plate 21, a plurality of groups of water holes 22 for rainwater infiltration are arranged on the top of the upper cover plate 21, and the inner bridge 24 is arranged on the inner top of the lower bridge 1.

[0025] The present invention also includes that the fastener mechanism 3 includes a rectangular buckle box 31, the side of the rectangular buckle box 31 facing the cover-type bridge frame 2 is open, a buckle entry port 32 is opened on the top of the rectangular buckle box 31 and on the vertical surface on the side of the open surface, and a buckle storage cavity 33 is provided at the bottom of the rectangular buckle box 31.

[0026] The present invention also includes that the upper cover plate 21 is provided with buckle pieces 23 corresponding to the rectangular buckle boxes 31 at equal distances, and the top of the upper cover plate 21 is provided with an inclined slope for foreign objects to slide sideways.

[0027] A method for installing a water tank bridge assembly, the specific installation steps are as follows: Step 1: Installation preparation: 1. The lower bridge 1 adopts a cold-rolled steel plate lower bridge with a length, width and height of 3000mm×200mm×150mm, and a plate thickness of ≥2.0mm to ensure a load capacity of ≥500N / m. At the same time, the perforation 11 adopts a standard aperture of Φ25mm and a spacing of 500mm to meet the bending radius requirements of the optical cable; 2. The upper cover 21 must cover 100% of the width of the lower bridge cavity. The depth of the inner bridge 24 should be 5-10mm smaller than the height of the lower bridge to form a dynamic compensation gap to prevent structural deformation caused by thermal expansion and contraction. Step 2: Pre-assembly of the fastener system: The fastener mechanism 3 is made of 304 stainless steel. The outer dimensions of the rectangular buckle box 31 are 80mm × 40mm × 30mm in length, width, and height. The buckle inlet 32 ​​is 12mm wide and 5mm deep. The length and thickness of the buckle piece 23 are 10mm × 2mm. The buckle inlet 32 ​​and the buckle piece 23 form a 0.5mm interference fit. The buckle cavity 33 is 20mm deep, ensuring that the axial displacement of the buckle piece after insertion is ≤0.2mm. Step 3: Main body assembly: Lower bridge positioning and installation: 1. Loft the baseline according to the design drawings, use a laser level to establish a three-dimensional coordinate system, with a lateral error of ≤2mm and a longitudinal slope controlled within 0.5%; 2. Use M10×80 expansion bolts to fix the lower bridge, with a spacing of 800mm and a torque value within 40N·m. Use a 45° angle cutting process for the corners, and fill the joints with conductive anti-corrosion glue, with a contact resistance of ≤0.01Ω; Cover bridge assembly: 1. Weld the inner bridge 24 to the upper cover 21 with a weld height of 4 mm and a weld angle of 6 mm. Perform PT penetration testing after welding, and the defect length should be ≤1.5 mm. 2. A set of rectangular buckle boxes 31 is arranged every 600 mm along the length direction of the upper cover plate 21, and a positioning tool processed by CNC is used to ensure that the center line of the buckle 23 coincides with the center line of the rectangular buckle box 31 of the lower bridge 1 with an error of ≤0.5 mm; 3. The buckle is inserted into the buckle opening 32 at an inclination angle of 30°, and the contact surface is coated with MoS2 lubricant; 4. A horizontal thrust of 50 N is applied to make the buckle enter the buckle storage cavity 33, implement horizontal sliding, and press down to realize vertical locking.

[0028] The application also includes that when the width of the lower bridge 1 is ≥400 mm, a 40×40×4 mm angle steel support is selected, and the diameter of the perforation 11 needs to be greater than 20% of the outer diameter of the cable bundle.

[0029] The application also includes that the water hole 22 parameters are optimized by using Φ8 mm array holes with a hole spacing of 100 mm, which ensures the drainage efficiency and can block impurities with a particle size of >8 mm, and is verified by CFD fluid simulation.

[0030] The application also includes that the buckle system is subjected to 500 opening and closing cycle tests at room temperature 25±2℃, and the attenuation rate of the buckling force is required to be ≤5%; A telescopic joint is arranged every 30 m, the spacing of the buckle mechanism 3 at the telescopic joint is encrypted to 0.3 m, the width of the rectangular buckle box 31 into the buckle opening 32 is increased by 5 mm, and a reserved displacement space is made.

[0031] The application also includes that the inner bridge 24 flow guide test: 5 L / min water flow is injected to verify that the fluid path conforms to the predetermined route of "water hole, inner bridge water collecting tank, and bridge drainage pipe".

[0032] The application comprises a lower bridge 1 for wiring and a cover bridge 2 for drainage when in use, the lower bridge 1 is provided with a through hole 11 at the end for cable threading, the cable is threaded into the lower bridge 1 through the through hole 11 to achieve orderly laying, the cover bridge 2 is covered on the lower bridge 1 to form a closed space to prevent external interference, the two sides of the lower bridge 1 are connected with a fastener mechanism 3 for installing the cover bridge 2 to ensure the stable installation of the cover bridge 2, the cover bridge 2 comprises an upper cover plate 21 and an inner bridge 24 for drainage, the upper cover plate 21 is covered on the top of the lower bridge 1 to form a protective layer to prevent foreign matter from entering, the inner bridge 24 is fixedly welded on the bottom of the upper cover plate 21 to enhance the structural stability, a plurality of water holes 22 for rainwater infiltration are formed on the top of the upper cover plate 21, the rainwater infiltrates into the inner bridge 24 through the water holes 22, the inner bridge 24 is located on the top of the lower bridge 1 to guide the infiltrated rainwater to the drainage system of the lower bridge 1, the fastener mechanism 3 comprises a rectangular buckle box 31, one side of the rectangular buckle box 31 facing the cover bridge 2 is open to facilitate the insertion of the buckle 23, a buckle inlet 32 is formed on the top of the vertical surface of the open side of the rectangular buckle box 31, the buckle 23 enters the rectangular buckle box 31 through the buckle inlet 32, a buckle storage cavity 33 is arranged on the inner bottom of the rectangular buckle box 31, the buckle 23 is mechanically limited in the buckle storage cavity 33 to ensure that the cover bridge 2 is stably installed on the lower bridge 1, the upper cover plate 21 is provided with a buckle 23 corresponding to the rectangular buckle box 31, the quick assembly is realized through the cooperation of the buckle 23 and the rectangular buckle box 31, an inclined slope surface is arranged on the top of the upper cover plate 21 for the lateral sliding of foreign matter to prevent the accumulation of foreign matter, the water tank bridge assembly adopts a modular assembly process to realize the integration of cable laying and drainage function, which greatly improves the construction efficiency and quality, through precise parameter control, such as specification confirmation of the lower bridge 1, adaptability detection of the cover bridge 2 and pre-assembly of the fastener mechanism 3, the accurate installation and stable operation of the assembly are ensured, the self-locking fastener mechanism 3 realizes quick assembly through mechanical limiting, which not only improves the installation speed, but also enhances the stability and safety of the assembly, the upper and lower layered drainage guide mechanism, i.e. the combination of the water holes 22 of the upper cover plate 21 and the inner bridge 24, effectively improves the drainage efficiency and prevents the contact of water flow and wiring space to avoid the risk of short circuit, realizes efficient, stable and safe cable laying and drainage function, and has significant economic and social benefits.

[0033] In the description of the application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the present invention, unless otherwise clearly specified and limited, the terms "installed", "set", "connected", "fixed", "screwed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sink bridge assembly, comprising: The utility model relates to a cable bridge, including the lower bridge (1) for cable and the cover bridge (2) for drainage, the lower bridge (1) both ends are equipped with the perforation (11) for cable, the cover bridge (2) is covered on the lower bridge (1), the lower bridge (1) both sides are connected with the fastener mechanism (3) for the cover bridge (2) installation equally distant, The cover bridge (2) includes the upper cover plate (21) and the inner bridge (24) for drainage, the upper cover plate (21) is covered on the top of the lower bridge (1), the inner bridge (24) is fixedly welded with the bottom of the upper cover plate (21), a plurality of groups of water holes (22) for rainwater infiltration are formed in the top of the upper cover plate (21), and the inner bridge (24) is located at the inner top of the lower bridge (1).

2. A sink bridge assembly according to claim 1, wherein, The fastener mechanism (3) includes a rectangular buckle box (31), one side of the rectangular buckle box (31) facing the cover bridge (2) is open, an entering buckle opening (32) is formed in the top of the vertical surface on one side of the open side of the rectangular buckle box (31), and a buckle storage cavity (33) is arranged at the inner bottom of the rectangular buckle box (31).

3. A sink bridge assembly according to claim 2, wherein, The upper cover plate (21) is provided with a buckle piece (23) corresponding to the rectangular buckle box (31) at equal distances, and an inclined slope surface for lateral sliding of foreign matters is arranged at the top of the upper cover plate (21).

4. A method of installing a sink bridge assembly according to any one of claims 1-3, wherein, The specific installation steps are as follows: Step one: installation preparation: 1, the lower bridge (1) adopts a cold-rolled steel lower bridge with a length, width and height of 3000mm*200mm*150mm, the plate thickness is greater than or equal to 2.0mm, the bearing capacity is greater than or equal to 500N / m, the perforation (11) adopts a standard aperture with a diameter of Φ25mm, the interval is 500mm, and the requirements of the optical cable bending radius are met; 2, the upper cover plate (21) needs to cover 100% of the width direction of the inner cavity of the lower bridge, the depth of the inner bridge (24) is smaller than the inner height of the lower bridge by 5-10mm, a dynamic compensation gap is formed, and structural deformation caused by thermal expansion and cold contraction is prevented; Step two: fastener system pre-assembly: The fastener mechanism (3) adopts 304 stainless steel material, the outer contour size of the rectangular buckle box (31) is 80mm*40mm*30mm in length, width and height, the width of the entering buckle opening (32) is 12mm, the depth is 5mm, the length and thickness of the buckle piece (23) are 10mm*2mm, the entering buckle opening (32) and the buckle piece (23) form an interference fit of 0.5mm, and the depth of the buckle storage cavity (33) is 20mm, so that the axial displacement of the buckle piece after embedding is less than or equal to 0.2mm; Step three: main assembly: Lower bridge positioning and installation: 1, the reference line is laid out according to the design drawing, a three-dimensional coordinate system is established by using a laser level, the horizontal error is less than or equal to 2mm, and the longitudinal slope is controlled to be between 0.3%-0.5%; 2, the lower bridge is fixed by using M10*80 expansion bolts, the interval is 800mm, and the torque value is controlled to be in the range of 35-40N*m. The corner parts are spliced by using a 45° angle cutting splicing process, the splicing seam is filled with conductive anticorrosive glue, and the contact resistance is less than or equal to 0.01Ω; Cover bridge assembly: 1, the inner bridge (24) and the upper cover plate (21) are welded, the height of the weld is 4mm, the size of the weld angle is 6mm, and after welding, PT penetration detection is carried out, and the defect display length is less than or equal to 1.5mm; 2. Set a group of rectangular buckle boxes (31) every 600 mm along the length direction of the upper cover plate (21), and use a positioning tool processed by CNC to ensure that the center line of the buckle (23) coincides with the center line of the rectangular buckle box (31) of the lower bridge (1) with an error of ≤0.5 mm; 3. Insert the buckle at an inclination of 30° into the buckle opening (32), and smear MoS2 lubricant on the contact surface; 4. Apply a horizontal thrust of 50 N to make the buckle enter the buckle storage cavity (33), implement horizontal sliding, and press down to realize vertical locking.

5. A method of installing a sink bridge assembly according to claim 4, wherein, When the width of the lower bridge (1) is ≥400 mm, a 40×40×4 mm angle steel support is selected, and the diameter of the perforation (11) needs to be greater than the outer diameter of the cable bundle by 20%.

6. A method of installing a sink bridge assembly according to claim 5, wherein, The water hole (22) parameter optimization adopts a Φ8 mm array hole with a hole spacing of 10-100 mm, which ensures the drainage efficiency and can block impurities with a particle size of >8 mm, the opening rate is controlled between 40%-70%, and the CFD fluid simulation verification is performed.

7. A method of installing a sink bridge assembly according to claim 6, wherein, The buckle system is subjected to 500 opening and closing cycle tests at room temperature 25±2℃, and the attenuation rate of the buckling force is required to be ≤5%; Set an expansion joint every 30 m, and the spacing of the buckle mechanism (3) at the expansion joint is encrypted to 0.3 m, the width of the rectangular buckle box (31) into the buckle opening (32) is increased by 5 mm, and the reserved displacement space is made.

8. A method of installing a sink bridge assembly according to claim 7, wherein, The inner bridge (24) flow guide test: inject 5 L / min water flow, and verify that the fluid path meets the predetermined route of "water hole, inner bridge water collecting tank, and bridge drainage pipe".

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