Bridge anti-collision wall anti-corrosion protection assembly and anti-corrosion protection method

Abstract

The invention relates to an anti-corrosion protection assembly and an anti-corrosion protection method for a bridge anti-collision wall. One end of a combined connecting piece body is provided with a buckling connecting piece matched with the other end of the combined connecting piece body, and the buckling connecting piece is provided with a buckling bending part matched with a main body bending part; a plurality of hot-pressing fixing limiting grooves are evenly formed in the outer side face of the combined connecting piece body, a main body top arc plate extending in the direction of the inner side face is arranged at the top of the combined connecting piece body, and a fastener top arc plate matched with the main body top arc plate is arranged at the top of the fastening connecting piece. A combined sealing device is arranged on the inner side of the combined connecting piece body; corresponding and corresponding selection can be made according to the specific corrosion resistance level of a construction site, the application range of the product is expanded, all-directional sealing of liquid hazardous substances is achieved, and liquid is prevented from entering from the bottom, the side face connecting position or the top after the combined connecting piece body is installed. And the corrosion resistance and grade of the product are improved.

Description

Technical Field

[0001] The present invention relates to the field of transportation, in particular to the protection of bridge crash barriers, and in particular to an anti-corrosion protection component and an anti-corrosion protection method for bridge crash barriers. Background Art

[0002] Bridge crash barriers are prefabricated or cast-in-place using formwork to connect to the main structure on either side or in the center of the bridge pavement. After installation, to extend the service life of the bridge crash barrier, certain external protective measures are required. These external protective measures can prevent damage to the main structure of the crash barrier from corrosion, immersion, or impact. Traditional methods of external protection for bridge crash barriers include coating with anti-corrosion paint, wrapping with metal composite parts, and applying anti-corrosion stickers.

[0003] The cost of using anti-corrosion paint coatings for protection is high, and repairs and maintenance are often required. The overall labor intensity is high, and the maintenance cost is also high. In addition, the anti-corrosion paint has a short service life, poor durability, and serious consumption of raw materials, and requires frequent repair and renovation protection operations. The use of stainless steel for metal fittings requires high-strength connections to ensure its composite function. Since the metal parts and the outer side of the crash barrier are made of different materials, there is a defect of difficulty in fitting and fixing. In addition, after the stainless steel protection is installed, there are defects such as reflection, which affects safe driving, and the outer light-absorbing layer needs to be pasted again to avoid excessive reflection. Although the method of pasting the anti-corrosion outer layer sticker is low in cost, it has the defect of poor adhesion, and the anti-corrosion outer layer sticker has a short service life and its own material hardness is low, so it is easily damaged and destroyed during use.

[0004] In addition, in frequent snowy and icy weather, the use of bridge crash barriers requires the implementation of external protective operations. In order to prevent road safety accidents, a large amount of snow melting agents are used in snowy and icy weather. Snow melting is harmful, and its residues can cause corrosion to the bottom and outer side of the crash barrier, destroying its external main structure and causing peeling. In serious cases, it needs to be replaced in time to ensure timely road safety and smooth traffic. Although some non-metallic fittings are currently on the market, they have the problem of poor sealing. Snow water with snow melting agents can easily penetrate the connection parts or the bottom gaps and enter the inner layer. After being damaged, it is easy to dent or break. Later repair and maintenance are difficult. The product cannot be used cyclically after installation and is difficult to disassemble.

[0005] To sum up, a bridge crash wall anti-corrosion protection component and anti-corrosion protection method are provided, which have a simple structure, easy operation, firm installation, long service life, strong durability, cost saving, easy installation, and an outer layer made of a corrosion-resistant material, which is easy to process and produce. The product is assembled and installed in a prefabricated structure, has good sealing performance after installation, has both strength and toughness, and the anti-corrosion protection method is simple and easy to operate, and has broad market prospects. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention provides a bridge crash wall anti-corrosion protection component and anti-corrosion protection method with a simple structure, easy operation, firm installation, long service life, strong durability, cost saving, easy installation, the outer layer is made of a material with anti-corrosion properties, easy to process and produce, the product is assembled and installed in a prefabricated structure, has good sealing performance after installation, has both its own strength and toughness, and the anti-corrosion protection method is simple and easy to operate, which is used to overcome the defects in the existing technology.

[0007] The technical solution of the present invention is implemented as follows: a bridge crash wall anti-corrosion protection component includes a combination connector body prefabricated according to the shape of the outer side surface of the bridge crash wall, the combination connector body is provided with a number of main body bending parts matching the outer side surface of the bridge crash wall from bottom to top, one end of the combination connector body is provided with a snap-fit connector matching the other end of the combination connector body, the snap-fit connector is provided with a snap-fit bending part matching the main body bending part, a number of hot-pressed fixed limiting grooves are evenly provided on the outer side surface of the combination connector body, a main body top arc plate extending toward the inner side surface is provided on the top of the combination connector body, a fastener top arc plate matching the main body top arc plate is provided on the top of the snap-fit connector, and a combination sealing device is provided on the inner side of the combination connector body.

[0008] The combined sealing device includes a transverse bottom sealing component and a longitudinal connection part sealing component which are an integral structure with the inner side surface of the combined connector body. The transverse bottom sealing component is arranged in the length direction of the inner bottom of the combined connector body, and the bottom surface of the transverse bottom sealing component is flush with the bottom surface of the combined connector body. The longitudinal connection part sealing component is arranged in the height direction of the inner side surface of the end portion of the combined connector body on one side of the snap connector, and the outer edge of the longitudinal connection part sealing component is flush with the outer edge of the end portion of the combined connector body. A bottom sealing strip installation groove is provided on the bottom surface of the transverse bottom sealing component, and a connection part sealing strip installation groove is provided on the outer side surface of the longitudinal connection part sealing component. Sealing strips are movably installed in both the bottom sealing strip installation groove and the connection part sealing strip installation groove.

[0009] The combined sealing device includes a polystyrene foam board sealing layer applied to the back of the combined connector body by gluing. The shape of the polystyrene foam board sealing layer is a plate-like structure that matches the inner side surface of the combined connector body, or the shape of the polystyrene foam board sealing layer is a strip-like structure that matches the two ends of the inner side surface and the outer edge of the bottom of the combined connector body. The top of the polystyrene foam board sealing layer matches the bottom of the inner side surface of the top arc plate of the main body.

[0010] The combined connector body is a special-shaped plate structure formed by hot pressing a PVC aggregate layer and an ASA plastic corrosion-resistant outer layer, and the surface of the ASA plastic corrosion-resistant outer layer is a black frosted surface structure.

[0011] The combination connector body is provided with two main body bending parts, which divide the combination connector body into three sections from top to bottom: upper, middle and lower sections, wherein the middle section is a plate-like structure with the bottom inclined toward the outside, and the lower section is a plate-like structure perpendicular to the horizontal plane. Hot-pressed fixed limiting grooves are provided on the upper section and the middle section, and the hot-pressed fixed limiting grooves are set on the combination connector body by hot pressing. The side of the hot-pressed fixed limiting groove facing the outer side of the combination connector body is a groove-like structure, and the side of the hot-pressed fixed limiting groove facing the inner side of the combination connector body is a bulge-like structure. The height of the hot-pressed fixed limiting groove protruding toward the inner side of the combination connector body is not greater than the depth of the inner side of the arc plate at the top of the main body.

[0012] The combination connector body and the top arc plate of the main body are an integrated structure, the outer side surface of the top arc plate of the main body matches the inner side surface of the top arc plate of the fastener, the top arc plate of the fastener and the snap-fit connector are an integrated structure, the snap-fit connector and the combination connector body are an integrated structure, and a snap-fit groove is provided on the inner side surface of the snap-fit connector, the length of the snap-fit groove matches the width of the combination connector body, and the depth of the snap-fit groove matches the thickness of the connector body.

[0013] The length of the transverse bottom sealing component is equal to the length of the combined connector body, the length of the longitudinal connection part sealing component is equal to the side width of the combined connector body, the top of the longitudinal connection part sealing component matches the bottom of the inner side of the top arc plate of the main body, and the bottom of the longitudinal connection part sealing component is fixedly connected to the top of one end of the transverse bottom sealing component.

[0014] The top of the polystyrene foam board sealing layer matches the bottom of the inner side of the main body top arc plate, and the thickness of the polystyrene foam board sealing layer is not less than the depth of the inner side of the main body top arc plate.

[0015] A method for anti-corrosion protection of the anti-corrosion protection assembly of the bridge crash wall as described above, the method is as follows: first, at the construction site, the sealing strips are correspondingly installed in the bottom sealing strip installation groove and the connection sealing strip installation groove, and then the first combined connector body is first installed at the starting position of the bridge crash wall. During installation, the first combined connector body is fitted with the outer side of the bridge crash wall, and the punching equipment is used to perform anchor hole punching operations on the hot-pressed fixed limiting groove and the inner bridge crash wall at the position of the hot-pressed fixed limiting groove. After the punching is completed, a waterproof sealing ring is added to the outer side of the hot-pressed fixed limiting groove, and the expansion bolts are installed in the corresponding anchor holes to fix the first combined connector body, and the expansion bolts are used to The outer end head and the waterproof sealing ring seal the anchor hole on the hot-pressed fixed limit groove, and then the second composite connector body is buckled and fixed on the inner side of the snap connector at one end of the first composite connector body until all the composite connector bodies are installed. The composite connector body is used to seal the outer side of the bridge crash barrier, and the sealing strip installed in the bottom sealing strip installation groove is used to seal the bottom of the bridge crash barrier. The sealing strip installed in the connection part sealing strip installation groove is used to seal the connection position of the two adjacent composite connector bodies, and the top arc plate of the main body and the top arc plate of the fastener are used to seal the outer side of the upper and middle part of the bridge crash barrier, completing the anti-corrosion protection of the bridge crash barrier as a whole.

[0016] A method for anti-corrosion protection of the anti-corrosion protection assembly of the bridge crash wall as described above, the method is as follows: at the construction site, a polystyrene foam board sealing layer is pasted on the back of the combined connector body, and then the first combined connector body is first installed at the starting position of the bridge crash wall. During installation, the first combined connector body is fitted with the outer side of the bridge crash wall, and a punching device is used to perform anchor hole punching operations on the hot-pressed fixed limiting groove, the polystyrene foam board sealing layer and the inner bridge crash wall at the position of the hot-pressed fixed limiting groove. After the punching is completed, a waterproof sealing ring is added to the outer side of the hot-pressed fixed limiting groove, and the expansion bolt is installed on the opposite side. Fix the first combined connector body in the corresponding anchor hole, use the outer end of the expansion bolt and the waterproof sealing ring to seal the anchor hole on the hot-pressed fixed limit groove, then buckle the second combined connector body on the inner side of the snap-fit connector at one end of the first combined connector body and fix it until all the combined connector bodies are installed, use the combined connector body to seal the outer side of the bridge crash barrier, use the polystyrene foam board sealing layer to seal the bottom of the combined connector body, the connection position of the two adjacent combined connector bodies and the outer side of the upper and middle part of the bridge crash barrier, and complete the anti-corrosion protection operation of the bridge crash barrier as a whole.

[0017] The present invention has the following positive effects: First, the present invention adopts a combined connector body to implement corrosion protection for the bridge crash barrier. The combined connector body is a special-shaped plate structure formed by hot pressing a PVC aggregate layer and an ASA plastic anti-corrosion outer layer. The material has a certain strength and toughness, which is convenient for the operation of the installation operation, and also facilitates the increase of the overall service life during the later implementation of the anti-corrosion process. It also has a certain impact resistance. The surface of the ASA plastic anti-corrosion outer layer is a black frosted surface structure, which avoids reflections like traditional metal parts during use. ASA plastic is copolymerized by styrene, acrylonitrile and acrylic rubber. ASA not only maintains the main characteristics of ABS, and combines the weather resistance of PMMA, so that the application of the product can be extended to outdoor use. During its use, it can block corrosive liquids such as snow melting agents, avoiding the damage caused by the harmful liquid directly acting on the outside of the bridge crash barrier.

[0018] Secondly, the present invention adopts a method of integrated matching of snap-fit connectors and combined connector bodies. During the installation process, a single combined connector body can be assembled and installed in sequence according to the installation direction, and the connection parts are overlapped and sealed by snap-fitting to prevent the entry of liquid. In terms of installation method, the installation is carried out by punching and anchoring, and a waterproof sealing ring is added to the anchor hole position to prevent liquid from entering the anchoring position. At the same time, a plate-like surface structure with an inclined outward middle part is provided, which is conducive to the discharge of snow and liquid by self-weight and the flow of liquid downward, reducing the retention time of harmful liquid.

[0019] Thirdly, the present invention uses the top arc plate of the main body and the top arc plate of the fastener to seal the top connection position. During the use of the special-shaped combined connector body that fits the bridge crash barrier, the top is sealed by cooperating with the outer side of the bridge crash barrier. In addition, the present invention also uses a combined sealing device to strengthen the sealing of the bottom, top and connection position after installation. The combined sealing device adopts different sealing methods and can be selected accordingly according to the specific corrosion resistance level of the construction site, extending the scope of use of the product, achieving all-round sealing of liquid hazardous substances, and preventing liquid from entering from the bottom, side connection position or top after the combined connector body is installed. The corrosion resistance and level of the product are improved.

[0020] In addition, the combined connector body of the present invention has a certain strength and toughness after installation, which can be lower than external impact. After an external impact occurs, it can not only protect the internal bridge crash wall, but also play a certain impact buffering role. The main reason is that the hot-pressed fixed limiting groove is set in a convex block structure on the side facing the inner side of the combined connector body, so that after installation, the surrounding area of the hot-pressed fixed limiting groove on the inner side of the combined connector body can form a gap between the outer side of the bridge crash wall, which plays a buffering role. Similarly, when the polystyrene foam board sealing layer is used, when the polystyrene foam board sealing layer is installed, its inner side is in shape with the outer side of the bridge crash wall, which can enhance the seal while also playing a certain impact buffering role. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main three-dimensional structure of the present invention.

[0022] Figure 2 It is a rear perspective structural schematic diagram of the present invention.

[0023] Figure 3 This is a schematic diagram of the main structure of the connection state of the present invention.

[0024] Figure 4 It is a schematic diagram of the rear view structure of the connection state of the present invention.

[0025] Figure 5 It is a schematic diagram of the side structure of the connection state of the present invention.

[0026] Figure 6 This is one of the rear structural schematic diagrams of the combined sealing device of the present invention.

[0027] Figure 7 This is one of the rear structural schematic diagrams of the combined sealing device of the present invention in the connected state.

[0028] Figure 8 This is one of the side structural schematic diagrams of the combined sealing device of the present invention in the connected state.

[0029] Figure 9 This is one of the partially enlarged structural schematic diagrams of the present invention.

[0030] Figure 10 This is the second schematic diagram of the partially enlarged structure of the present invention.

[0031] Figure 11 This is the second rear structural schematic diagram of the combined sealing device of the present invention.

[0032] Figure 12 This is the second schematic diagram of the rear view structure of the combined sealing device of the present invention in the connected state.

[0033] Figure 13 This is the second schematic side structural diagram of the combined sealing device of the present invention in the connected state. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with specific embodiments:

[0035] Example 1: Figure 1 、 2 As shown in Figures 3, 4 and 5, a corrosion protection component for a bridge crash wall comprises a combination connector body 1 prefabricated according to the shape of the outer side surface of the bridge crash wall 10, the combination connector body 1 is provided with a plurality of main body bending portions 2 cooperating with the outer side surface of the bridge crash wall from bottom to top, a snap-fit connector 5 cooperating with the other end of the combination connector body 1 is provided at one end of the combination connector body 1, a snap-fitting connector 5 is provided with a snap-fitting bending portion 6 cooperating with the main body bending portion 2, a plurality of hot-pressed fixed limiting grooves 3 are evenly provided on the outer side surface of the combination connector body 1, a main body top arc plate 4 extending toward the inner side surface is provided at the top of the combination connector body 1, a fastener top arc plate 7 cooperating with the main body top arc plate 4 is provided at the top of the snap-fit connector 5, and a combination sealing device is provided on the inner side of the combination connector body 1.

[0036] The combined connector body 1 is a special-shaped plate-like structure formed by hot pressing a PVC aggregate layer and an ASA plastic corrosion-resistant outer layer. The surface of the ASA plastic corrosion-resistant outer layer is a black matte surface structure. The combined connector body 1 is provided with two main body bending parts 2, which divide the combined connector body 1 into three sections from top to bottom: upper, middle and lower sections. The middle section is a plate-like structure with its bottom inclined toward the outside, and the lower section is a plate-like structure perpendicular to the horizontal plane. Hot-pressed fixed limiting grooves 3 are provided on both the upper and middle sections. The hot-pressed fixed limiting grooves 3 are set on the combined connector body 1 by hot pressing. The side of the hot-pressed fixed limiting groove 3 facing the outer side of the combined connector body 1 is a groove-like structure, and the side of the hot-pressed fixed limiting groove 3 facing the inner side of the combined connector body 1 is a convex block structure. The height of the hot-pressed fixed limiting groove 3 protruding toward the inner side of the combined connector body 1 is not greater than the depth of the inner side of the main body top arc plate 4.

[0037] The combined connector body 1 and the main body top arc plate 4 are an integrated structure, the outer side surface of the main body top arc plate 4 matches the inner side surface of the fastener top arc plate 7, the fastener top arc plate 7 and the snap-fit connector 5 are an integrated structure, the snap-fit connector 5 and the combined connector body 1 are an integrated structure, and a snap-fit groove is provided on the inner side surface of the snap-fit connector 5, the length of the snap-fit groove matches the width of the combined connector body 1, and the depth of the snap-fit groove matches the thickness of the connector body 1.

[0038] The combined connector body 1 of the present invention can be assembled with the adjacent combined connector bodies 1 through the snap-fit connector 5 when in use. During specific installation, after the first combined connector body 1 is installed and fixed, the end of the second combined connector body 1 without the snap-fit connector 5 is plugged into the inner side of the snap-fit connector 5 set on the first combined connector body 1, and the snap-fit groove set on the inner side of the snap-fit connector 5 is used to limit the snap-fitting part of the second combined connector body 1, and the operation of assembling all the combined connector bodies 1 is realized as a whole.

[0039] The combined connector body 1 is constructed with an inner layer of PVC aggregate and an outer layer of ASA plastic, a corrosion-resistant outer layer. This two-layer structure is formed by heat pressing. Its inner surface matches the outer surface of the bridge crash barrier 10, resulting in a shaped plate-like structure. To prevent glare, the ASA plastic outer layer has a black frosted surface. To enhance safety during use, reflective strips can be affixed to the ASA plastic outer layer to enhance safe driving guidance. These reflective strips can be in the form of long strips or blocks. These reflective strips can be replaced with reflective warning devices such as warning lights.

[0040] The main body bending portion 2 and the buckled bending portion 6 are arranged in conjunction with the outer edge of the bridge crash barrier 10. In order to prevent snow accumulation or snow-melting agents and harmful liquids from excessively staying on the outside of the combined connector body 1, a plate-like structure with the bottom tilted outward is adopted in the middle section. In order to improve the toughness of the product after installation, a hot-pressed fixed limiting groove 3 is formed into a groove-like structure on one side facing the outer side of the combined connector body 1, and the height of the hot-pressed fixed limiting groove 3 protruding toward the inner side of the combined connector body 1 is not greater than the depth of the inner side of the main body top arc plate 4. The above-mentioned arrangement can play the role of buffering certain impacts in the form of a cavity structure in the middle. The components of the present invention are formed by integrated hot pressing, which improves the connectivity of the entire combined connector body 1 after installation, while also achieving overall comprehensive anti-corrosion protection, strengthening firmness, and improving toughness.

[0041] In this embodiment, the combined sealing device is not used, and only the connection of the combined connector body 1 is implemented. The anti-corrosion protection method of the anti-corrosion protection assembly of the bridge crash wall in this embodiment is: first install the first combined connector body 1 at the starting position of the bridge crash wall 10, fit the first combined connector body 1 with the outer side of the bridge crash wall 10 during installation, and use the punching equipment to perform anchor hole punching operation on the hot-pressed fixed limit groove 3 and the inner bridge crash wall 10 at the position of the hot-pressed fixed limit groove 3. After the punching is completed, add a waterproof sealing ring 8 to the outer side of the hot-pressed fixed limit groove 3, and install the expansion bolt 9 in the corresponding anchor hole to fix the first combined connector body. The connector body 1 uses the outer end of the expansion bolt 9 and the waterproof sealing ring to seal the anchor hole on the hot-pressed fixed limit groove 3, and then the second composite connector body 1 is fastened to the inner side of the snap-fit connector 5 at one end of the first composite connector body 1 and fixed until all the composite connector bodies 1 are installed. The composite connector body 1 is used to seal the outer side of the bridge crash barrier 10, and the top arc plate 4 of the main body and the top arc plate 7 of the fastener are used to seal the outer side of the middle and upper part of the bridge crash barrier 10, completing the anti-corrosion protection operation of the bridge crash barrier 10 as a whole.

[0042] Example 2: Figure 1 、 2 As shown in Figures 3, 4, 5, 6, 7, 8, 9, and 10, this embodiment adds the use of a combined sealing device on the basis of the above-mentioned components. The combined sealing device includes a transverse bottom sealing component 11 and a longitudinal connection part sealing component 12 which are an integral structure with the inner side surface of the combined connector body 1. The transverse bottom sealing component 11 is arranged in the length direction of the inner bottom of the combined connector body 1, and the bottom surface of the transverse bottom sealing component 11 is flush with the bottom surface of the combined connector body 1. The longitudinal connection part sealing component 12 is arranged in the height direction of the inner side surface of the end portion of the combined connector body 1 on the side of the snap connector 5, and the outer edge of the longitudinal connection part sealing component 12 is flush with the outer edge of the end portion of the combined connector body 1. A bottom sealing strip mounting groove 13 is provided on the bottom surface of the transverse bottom sealing component 11, and a connection part sealing strip mounting groove 14 is provided on the outer side surface of the longitudinal connection part sealing component 12. Sealing strips are movably installed in the bottom sealing strip mounting groove 13 and the connection part sealing strip mounting groove 14.

[0043] The combined connector body 1 is a special-shaped plate-like structure formed by hot pressing a PVC aggregate layer and an ASA plastic corrosion-resistant outer layer. The surface of the ASA plastic corrosion-resistant outer layer is a black matte surface structure. The combined connector body 1 is provided with two main body bending parts 2, which divide the combined connector body 1 into three sections from top to bottom: upper, middle and lower sections. The middle section is a plate-like structure with its bottom inclined toward the outside, and the lower section is a plate-like structure perpendicular to the horizontal plane. Hot-pressed fixed limiting grooves 3 are provided on both the upper and middle sections. The hot-pressed fixed limiting grooves 3 are set on the combined connector body 1 by hot pressing. The side of the hot-pressed fixed limiting groove 3 facing the outer side of the combined connector body 1 is a groove-like structure, and the side of the hot-pressed fixed limiting groove 3 facing the inner side of the combined connector body 1 is a convex block structure. The height of the hot-pressed fixed limiting groove 3 protruding toward the inner side of the combined connector body 1 is not greater than the depth of the inner side of the main body top arc plate 4. The length of the transverse bottom sealing component 11 is equal to the length of the combined connector body 1, the length of the longitudinal connection part sealing component 12 is equal to the side width of the combined connector body 1, the top of the longitudinal connection part sealing component 12 cooperates with the bottom of the inner side of the top arc plate 4 of the main body, and the bottom of the longitudinal connection part sealing component 12 is fixedly connected to the top of one end of the transverse bottom sealing component 11.

[0044] The anti-corrosion protection method of the anti-corrosion protection component of the bridge crash wall in this embodiment is: first install the sealing strip corresponding to the bottom sealing strip installation groove 13 and the connection sealing strip installation groove 14 at the construction site, and then first install the first combined connector body 1 at the starting position of the bridge crash wall 10. During installation, the first combined connector body 1 is fitted with the outer side of the bridge crash wall 10, and the punching equipment is used to perform anchor hole punching operation on the hot-pressed fixed limiting groove 3 and the inner bridge crash wall 10 at the position of the hot-pressed fixed limiting groove 3. After the punching is completed, a waterproof sealing ring 8 is added to the outer side of the hot-pressed fixed limiting groove 3, and the expansion bolt 9 is installed in the corresponding anchor hole to fix the first combined connector body 1, and the outer end of the expansion bolt 9 is used The waterproof sealing ring is used to seal the anchor hole on the hot-pressed fixed limit groove 3, and then the second composite connector body 1 is buckled on the inner side of the snap-fit connector 5 at one end of the first composite connector body 1 and fixed until all the composite connector bodies 1 are installed. The composite connector body 1 is used to seal the outer side of the bridge crash barrier 10, and the sealing strip installed in the bottom sealing strip installation groove 13 is used to seal the bottom of the bridge crash barrier 10. The sealing strip installed in the connection part sealing strip installation groove 14 is used to seal the connection position of the two adjacent composite connector bodies 1, and the top arc plate 4 of the main body and the top arc plate 7 of the fastener are used to seal the outer side of the upper and middle part of the bridge crash barrier 10, completing the anti-corrosion protection operation of the bridge crash barrier 10 as a whole.

[0045] Example 3: Figure 1 、 2 , 3, 4, 5, 11, 12, and 13, this embodiment also adopts the use of a combined sealing device, which includes a polystyrene foam board sealing layer 15 applied to the back of the combined connector body 1 by pasting, and the shape of the polystyrene foam board sealing layer 15 is a plate structure that matches the inner side surface of the combined connector body 1, or the shape of the polystyrene foam board sealing layer 15 is a strip structure that matches the two ends of the inner side surface and the outer edge of the bottom of the combined connector body 1, and the top of the polystyrene foam board sealing layer 15 matches the bottom of the inner side surface of the top arc plate 4 of the main body.

[0046] The combined connector body 1 is a special-shaped plate-like structure formed by hot pressing a PVC aggregate layer and an ASA plastic corrosion-resistant outer layer. The surface of the ASA plastic corrosion-resistant outer layer is a black matte surface structure. The combined connector body 1 is provided with two main body bending parts 2, which divide the combined connector body 1 into three sections from top to bottom: upper, middle and lower sections. The middle section is a plate-like structure with its bottom inclined toward the outside, and the lower section is a plate-like structure perpendicular to the horizontal plane. Hot-pressed fixed limiting grooves 3 are provided on both the upper and middle sections. The hot-pressed fixed limiting grooves 3 are set on the combined connector body 1 by hot pressing. The side of the hot-pressed fixed limiting groove 3 facing the outer side of the combined connector body 1 is a groove-like structure, and the side of the hot-pressed fixed limiting groove 3 facing the inner side of the combined connector body 1 is a convex block structure. The height of the hot-pressed fixed limiting groove 3 protruding toward the inner side of the combined connector body 1 is not greater than the depth of the inner side of the main body top arc plate 4. The top of the polystyrene foam board sealing layer 15 matches the bottom of the inner side of the main body top arc plate 4 , and the thickness of the polystyrene foam board sealing layer 15 is not less than the depth of the inner side of the main body top arc plate 4 .

[0047] The anti-corrosion protection method of the anti-corrosion protection component of the bridge crash wall in this embodiment is: at the construction site, the polystyrene foam board sealing layer 15 is pasted on the back of the combined connector body 1, and then the first combined connector body 1 is first installed at the starting position of the bridge crash wall 10. During installation, the first combined connector body 1 is fitted with the outer side of the bridge crash wall 10, and the punching equipment is used to perform anchor hole punching operations on the hot-pressed fixed limiting groove 3, the polystyrene foam board sealing layer 15 and the inner bridge crash wall 10 at the position of the hot-pressed fixed limiting groove 3. After the punching is completed, a waterproof sealing ring 8 is added to the outer side of the hot-pressed fixed limiting groove 3, and the expansion bolt 9 is installed in the corresponding anchor hole. Fix the first combined connector body 1 in the fixed hole, use the outer end of the expansion bolt 9 and the waterproof sealing ring to seal the anchor hole on the hot-pressed fixed limit groove 3, and then buckle the second combined connector body 1 on the inner side of the snap-fit connector 5 at one end of the first combined connector body 1 and fix it until all the combined connector bodies 1 are installed. Use the combined connector body 1 to seal the outer side of the bridge crash barrier 10, and use the polystyrene foam board sealing layer 15 to seal the bottom of the combined connector body 1, the connection position of the two adjacent combined connector bodies 1, and the outer side of the upper and middle parts of the bridge crash barrier 10, thereby completing the anti-corrosion protection operation of the bridge crash barrier 10 as a whole.

[0048] Example 4: As another embodiment of the present invention, the polystyrene foam board sealing layer 15 can be replaced with flame retardant foam glue. In the embodiment using flame retardant foam glue, the combined sealing device is no longer used. During the specific installation operation, the first combined connector body 1 is first installed at the starting position of the bridge crash wall 10. During installation, the first combined connector body 1 is fitted to the outer side of the bridge crash wall 10, and the punching equipment is used to perform anchor hole punching operation on the hot-pressed fixed limit groove 3 and the inner bridge crash wall 10 at the position of the hot-pressed fixed limit groove 3. After the punching is completed, the expansion screw is installed. Bolt 9, and keep the expansion bolt 9 in a relaxed state, use a spray gun to spray the flame retardant foam glue on the back of the first composite connector body 1, then fix and tighten the expansion bolt 9, and install the second composite connector body 1 and fix it according to this method until all the composite connector bodies 1 are installed. Use the composite connector body 1 to seal the outer side of the bridge crash barrier 10, and use flame retardant foam glue to seal the bottom of the composite connector body 1, the connection position of the two adjacent composite connector bodies 1, and the outer side of the middle and upper part of the bridge crash barrier 10, and complete the anti-corrosion protection operation of the bridge crash barrier 10 as a whole.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A bridge crash wall anti-corrosion protection assembly, comprising a combined connector body (1) prefabricated according to the shape of the outer side of the bridge crash wall (10), characterized in that: The combined connector body (1) is provided with a plurality of main body bending parts (2) from bottom to top that match the outer side surface of the bridge anti-collision wall, a buckle connector (5) is provided at one end of the combined connector body (1) that matches the other end of the combined connector body (1), a buckle bending part (6) that matches the main body bending part (2) is provided on the buckle connector (5), a plurality of hot-pressed fixed limiting grooves (3) are evenly provided on the outer side surface of the combined connector body (1), a main body top arc plate (4) extending toward the inner side surface is provided at the top of the combined connector body (1), a buckle top arc plate (7) that matches the main body top arc plate (4) is provided at the top of the buckle connector (5), and a combined sealing device is provided on the inner side of the combined connector body (1).

2. The anti-corrosion protection assembly for a bridge crash wall according to claim 1, characterized in that: The combined sealing device comprises a transverse bottom sealing component (11) and a longitudinal connection part sealing component (12) which are integrally structured with the inner side surface of the combined connector body (1). The transverse bottom sealing component (11) is arranged in the length direction of the inner bottom of the combined connector body (1). The bottom surface of the transverse bottom sealing component (11) is flush with the bottom surface of the combined connector body (1). The longitudinal connection part sealing component (12) is arranged in the height direction of the inner side surface of the end of the combined connector body (1) on one side of the snap connector (5). The outer edge of the longitudinal connection part sealing component (12) is flush with the outer edge of the end of the combined connector body (1). A bottom sealing strip installation groove (13) is provided on the bottom surface of the transverse bottom sealing component (11). A connection part sealing strip installation groove (14) is provided on the outer side surface of the longitudinal connection part sealing component (12). Sealing strips are movably installed in both the bottom sealing strip installation groove (13) and the connection part sealing strip installation groove (14).

3. The anti-corrosion protection assembly for a bridge crash wall according to claim 1, characterized in that: The combined sealing device comprises a polystyrene foam board sealing layer (15) adhered to the back of the combined connector body (1) by gluing, the polystyrene foam board sealing layer (15) being in the shape of a plate-like structure matching the inner side surface of the combined connector body (1), or the polystyrene foam board sealing layer (15) being in the shape of a strip-like structure matching the two ends of the inner side surface and the outer edge of the bottom of the combined connector body (1), and the top of the polystyrene foam board sealing layer (15) matching the bottom of the inner side surface of the top arc plate (4) of the main body.

4. The anti-corrosion protection assembly for bridge crash barriers according to claim 1, 2 or 3, characterized in that: The combined connector body (1) is a special-shaped plate structure formed by hot pressing a PVC aggregate layer and an ASA plastic corrosion-resistant outer layer, and the surface of the ASA plastic corrosion-resistant outer layer is a black frosted surface structure.

5. The anti-corrosion protection assembly for bridge crash barriers according to claim 1, 2 or 3, characterized in that: The combined connector body (1) is provided with two main body bending parts (2), and the two main body bending parts (2) divide the combined connector body (1) into three sections from top to bottom: an upper section, a middle section, and a lower section, wherein the middle section is a plate-like structure with its bottom inclined toward the outside, and the lower section is a plate-like structure perpendicular to the horizontal plane. Hot pressing fixed limiting grooves (3) are provided on both the upper section and the middle section, and the hot pressing fixed limiting grooves (3) are provided on the combined connector body (1) by hot pressing. The side of the hot pressing fixed limiting groove (3) facing the outer side of the combined connector body (1) is a groove-like structure, and the side of the hot pressing fixed limiting groove (3) facing the inner side of the combined connector body (1) is a convex block structure. The height of the hot pressing fixed limiting groove (3) protruding toward the inner side of the combined connector body (1) is not greater than the depth of the inner side of the main body top arc plate (4).

6. The anti-corrosion protection assembly for bridge crash barriers according to claim 1, 2 or 3, characterized in that: The combined connector body (1) and the main body top arc plate (4) are an integrated structure, the outer side surface of the main body top arc plate (4) matches the inner side surface of the buckle top arc plate (7), the buckle top arc plate (7) and the snap connector (5) are an integrated structure, the snap connector (5) and the combined connector body (1) are an integrated structure, and the inner side surface of the snap connector (5) is provided with a snap-fit groove, the length of the snap-fit groove matches the width of the combined connector body (1), and the depth of the snap-fit groove matches the thickness of the connector body (1).

7. The anti-corrosion protection assembly for a bridge crash wall according to claim 2, characterized in that: The length of the transverse bottom sealing component (11) is equal to the length of the combined connector body (1), the length of the longitudinal connection part sealing component (12) is equal to the side width of the combined connector body (1), the top of the longitudinal connection part sealing component (12) is matched with the bottom of the inner side surface of the main body top arc plate (4), and the bottom of the longitudinal connection part sealing component (12) is fixedly connected to the top of one end of the transverse bottom sealing component (11).

8. The anti-corrosion protection assembly for a bridge crash wall according to claim 3, characterized in that: The top of the polystyrene foam board sealing layer (15) matches the bottom of the inner side of the main body top arc plate (4), and the thickness of the polystyrene foam board sealing layer (15) is not less than the depth of the inner side of the main body top arc plate (4).

9. A method for anti-corrosion protection of a bridge crash wall anti-corrosion protection assembly according to claim 1, 2, 4, 5, 6 or 7, characterized in that: The method comprises the following steps: firstly installing the sealing strips in the bottom sealing strip installation groove (13) and the connection sealing strip installation groove (14) at the construction site, then first installing the first combined connector body (1) at the starting position of the bridge crash wall (10), fitting the first combined connector body (1) to the outer side of the bridge crash wall (10) during installation, using a punching device to perform an anchor hole punching operation on the hot press fixed limit groove (3) and the inner bridge crash wall (10) at the position of the hot press fixed limit groove (3), adding a waterproof sealing ring (8) to the outer side of the hot press fixed limit groove (3) after the punching is completed, and installing an expansion bolt (9) in the corresponding anchor hole to fix the first combined connector body (1), and using the outer end of the expansion bolt (9) and the waterproof sealing ring to punch the hot press fixed limit groove (3). The anchor hole on the limiting groove (3) is sealed, and then the inner side of the buckle connector (5) at one end of the first combined connector body (1) is buckled with the second combined connector body (1) and fixed until all the combined connector bodies (1) are installed. The combined connector body (1) is used to seal the outer side of the bridge crash wall (10), and the bottom of the bridge crash wall (10) is sealed using the sealing strip installed in the bottom sealing strip installation groove (13). The connection position of the two adjacent combined connector bodies (1) is sealed using the sealing strip installed in the connection part sealing strip installation groove (14). The outer side of the upper middle part of the bridge crash wall (10) is sealed using the main body top arc plate (4) and the buckle top arc plate (7), and the anti-corrosion protection operation of the bridge crash wall (10) is completed as a whole.

10. A method for anti-corrosion protection of a bridge crash wall anti-corrosion protection assembly according to claim 1, 3, 4, 5, 6 or 8, characterized in that: The method comprises the following steps: at a construction site, a polystyrene foam board sealing layer (15) is pasted on the back of a combined connector body (1); then, a first combined connector body (1) is first installed at a starting position of a bridge crash wall (10); during installation, the first combined connector body (1) is fitted to the outer side of the bridge crash wall (10); a punching device is used to perform an anchor hole punching operation on the hot-pressed fixed limiting groove (3), the polystyrene foam board sealing layer (15) and the inner bridge crash wall (10) at the position of the hot-pressed fixed limiting groove (3); after the punching is completed, a waterproof sealing ring (8) is added to the outer side of the hot-pressed fixed limiting groove (3); and an expansion bolt (9) is installed in the corresponding anchor hole to fix the first combined connector body. The assembly connector body (1) is installed, and the outer end of the expansion bolt (9) and the waterproof sealing ring are used to seal the anchor hole on the hot-pressed fixed limit groove (3). Then, the inner side of the buckle connector (5) at one end of the first assembly connector body (1) is buckled with the second assembly connector body (1) and fixed until all the assembly connector bodies (1) are installed. The assembly connector body (1) is used to seal the outer side of the bridge crash barrier (10). The polystyrene foam board sealing layer (15) is used to seal the bottom of the assembly connector body (1), the connection position of the two adjacent assembly connector bodies (1) and the outer side of the upper and middle parts of the bridge crash barrier (10), thereby completing the anti-corrosion protection operation of the bridge crash barrier (10) as a whole.

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