Bridge steel guardrail embedded part protection cover

Abstract

This utility model relates to the field of bridge construction equipment, and in particular to a protective cover for embedded parts of bridge steel guardrails. It mainly solves the problem that embedded parts and bolts of bridge steel structure anti-collision guardrails are easily contaminated by concrete slurry during the foundation pouring process. The cover includes a rectangular magnetic base, comprising a steel plate, magnetic patches fixed to the lower surface of the steel plate by bolts, and four steel strips located around the four perimeters of the lower surface of the steel plate. The steel strips are distributed on the outer periphery of the magnetic patches, and the thickness of the steel strips is 2mm to 8mm greater than the thickness of the magnetic patches. A handle is provided in the center of the upper surface of the magnetic base, and hooks are provided at the four corners of the upper surface of the magnetic base. Several holes are provided on the magnetic base around the handle, and bolt protective sleeves are provided at each hole.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction equipment, and in particular to a protective cover for embedded parts of bridge steel guardrails. Background Technology

[0002] As a crucial safety facility for bridges, steel bridge crash barriers effectively reduce the kinetic energy of vehicles veering off the road when encountering hazards, minimizing traffic accident losses and protecting the lives of drivers. Compared to concrete barriers, steel bridge crash barriers offer advantages such as easier installation, higher strength, greater flexibility, lower maintenance costs, and a more aesthetically pleasing appearance, leading to their widespread use in modern bridge construction. To ensure an effective connection between the steel crash barrier body and the foundation, embedded parts must be pre-installed on the top surface of the foundation before foundation pouring. These embedded parts and bolts are poured together with the foundation concrete, protruding from the concrete surface for subsequent railing installation. During the concrete pouring process, concrete slurry can easily contaminate the embedded parts and bolts during unloading, vibration, and finishing, affecting the quality of the subsequent railing installation and requiring manual cleaning of the slurry.

[0003] Currently, during the foundation pouring process of bridge steel structure crash barriers, the main protective measures for embedded parts and bolts are to wrap the bolts with plastic tape or place plastic protective sleeves on the bolts, and to place wooden box sleeves on the embedded parts. During concrete pouring, these protective sleeves are easily affected by vibration and pouring operations, causing the protective sleeves to shift and become displaced, and the embedded parts and bolts are still easily contaminated by cement slurry. Utility Model Content

[0004] Therefore, in view of the above problems, this utility model provides a protective cover for the embedded parts of bridge steel guardrails, which mainly solves the problem that the embedded parts and bolts of bridge steel structure anti-collision guardrails are easily contaminated by concrete cement slurry during the foundation pouring process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A protective cover for embedded parts of bridge steel guardrails includes a rectangular magnetic base. The magnetic base extends longitudinally along its length and laterally along its width. The magnetic base includes a steel plate, magnetic patches fixed to the lower surface of the steel plate by bolts, and four steel strips distributed around the four peripheries of the lower surface of the steel plate. The steel strips are located on the outer periphery of the magnetic patches, and their thickness is 2mm to 8mm greater than that of the magnetic patches. A handle is located in the center of the upper surface of the magnetic base, and hooks are located at the four corners of the upper surface. Several holes are located on the magnetic base around the handle, and bolt protective sleeves are provided at each hole.

[0007] Furthermore, there are eight holes, six of which are evenly distributed on both sides of the magnetic base and arranged symmetrically. The three holes distributed on one side of the magnetic base are designated as the first hole, the second hole, and the third hole. The distance between the center of the first hole and the center of the second hole is 130mm, and the distance between the center of the second hole and the center of the third hole is 105mm. The remaining two holes are distributed on one side of the magnetic base and are designated as the fourth hole. The distance between the centers of two adjacent fourth holes and the distance between the center of the third hole and the center of the fourth hole are 80mm.

[0008] Furthermore, the thickness of the steel plate is 0.1mm to 0.5mm.

[0009] Furthermore, the magnetic patch is a neodymium iron boron permanent magnet with an anti-rust coating on its surface, and is fixedly connected to the steel plate by countersunk bolts.

[0010] Furthermore, the bolt protective sleeve is made of rubber, and its inner diameter is 0.5mm to 2mm larger than the diameter of the hole.

[0011] Furthermore, the handle is a foldable structure, including a first rod and a second rod connected to the magnetic base by hinges, and the height after folding is no more than 10mm. The two ends of the second rod are hinged to the upper end of the first rod.

[0012] By adopting the aforementioned technical solution, the beneficial effects of this utility model are as follows: This protective cover for the embedded parts of the bridge steel guardrail, by setting a magnetic base, can be firmly attached to the foundation position of the guardrail embedded parts using magnetic patches, effectively preventing the protective cover from shifting or becoming displaced due to vibration and pouring operations during concrete pouring. Furthermore, the steel strip, which is thicker than the magnetic patches, can provide support and stability when attached by the magnetic base, further preventing cement slurry from seeping in. The handle makes it convenient for operators to pick up and install the protective cover, and the hook can be used for hoisting and transportation operations, improving the convenience of use. At the same time, the setting of holes and bolt protective sleeves can accurately correspond to the bolt positions on the embedded parts, effectively protecting the bolts and preventing concrete cement slurry from contaminating the embedded parts and bolts, ensuring the subsequent installation quality of the guardrail body, and reducing the amount of manual cleaning work. Attached Figure Description

[0013] Figure 1 This is a top view of an embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram of the right-side structure of an embodiment of the present invention;

[0015] Figure 3 yes Figure 2 A schematic cross-sectional view of point A in the middle;

[0016] Figure 4 This is a schematic diagram of the hole distribution structure in an embodiment of this utility model. Detailed Implementation

[0017] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0018] The embodiment of this utility model is as follows:

[0019] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a protective cover for embedded parts of bridge steel guardrail includes a rectangular magnetic base 1. The length direction of the magnetic base 1 is defined as the longitudinal direction, and the width direction of the magnetic base 1 is defined as the transverse direction. The magnetic base 1 includes a steel plate 11, magnetic patches 12 fixed to the lower surface of the steel plate 11 by bolts, and four steel strips 13 on the four peripheries of the lower surface of the steel plate 11. The steel strips 13 are distributed on the outer periphery of the magnetic patches 12. The thickness of the steel strips 13 is 2mm to 8mm larger than the thickness of the magnetic patches 12, preferably 3mm. A handle 2 is provided in the middle of the upper surface of the magnetic base 1. Hooks 3 are provided at the four corners of the upper surface of the magnetic base 1. Several holes 4 are provided on the magnetic base 1 and around the handle 2. Bolt protective sleeves 5 are provided at each hole 4.

[0020] This protective cover for the embedded parts of the bridge steel guardrail features a magnetic base 1 and magnetic patches 12 that firmly attach to the foundation of the guardrail's embedded parts. This effectively prevents the protective cover from shifting or becoming displaced during concrete pouring due to vibration and pouring operations. Furthermore, the steel strip 13, which is 2mm to 8mm thicker than the magnetic patches 12, provides support and stability when held in place by the magnetic base 1, further preventing cement slurry seepage. The handle 2 facilitates easy handling and installation by operators, while the hook 3 allows for lifting and transportation operations, enhancing usability. Additionally, the holes 4 and bolt protective sleeves 5 precisely correspond to the bolt positions on the embedded parts, effectively protecting them and preventing concrete cement slurry from contaminating the embedded parts and bolts. This ensures the quality of subsequent guardrail installation and reduces manual cleaning workload.

[0021] Specifically, there are eight holes 4. Six of the holes 4 are evenly distributed on both sides of the longitudinal direction of the magnetic base 1 and are arranged symmetrically. The three holes 4 distributed on one side of the longitudinal direction of the magnetic base 1 are the first hole 401, the second hole 402, and the third hole 403. The distance between the center of the first hole 401 and the center of the second hole 402 is 130mm, and the distance between the center of the second hole 402 and the center of the third hole 403 is 105mm. The remaining two holes 4 are distributed on one side of the transverse direction of the magnetic base 1. The remaining two holes 4 are designated as the fourth holes 404. The distance between the centers of two adjacent fourth holes 404 and the distance between the center of the third hole 403 and the center of the fourth hole 404 are 80mm. The number and distribution of holes 4 are precisely defined. This scientific and reasonable layout can better adapt to the embedded parts of bridge steel guardrails of different specifications and design requirements, ensure that each bolt can be accurately and effectively protected, improve the versatility and practicality of the protective cover, and further ensure that the embedded parts and bolts are not contaminated by cement slurry during the concrete pouring process.

[0022] Furthermore, the thickness of the steel plate 11 is 0.1mm to 0.5mm, preferably 0.1mm. While ensuring that the magnetic base 1 has a certain strength and structural stability, the overall weight of the protective cover is reduced as much as possible, which makes it convenient for operators to perform installation, disassembly and transportation, reduces labor intensity and saves material costs.

[0023] Furthermore, the magnetic patch 12 is a neodymium iron boron permanent magnet with a rust-proof coating on its surface. It is fixedly connected to the steel plate 11 by countersunk bolts. Using neodymium iron boron permanent magnets as the magnetic patch provides strong magnetic attraction, enabling the protective cover to adhere more firmly to the embedded foundation and effectively resist various external forces during concrete pouring. The rust-proof coating prevents the magnetic patch from rusting, extending its service life and ensuring stable magnetic performance. The countersunk bolts secure the connection to the steel plate 11, making the connection more robust and reliable. The countersunk bolt design does not affect the connection between the magnetic base 1 and the steel plate 11. The embedded part foundation is flat and fits snugly; the bolt protective sleeve 5 is made of rubber, and its inner diameter is 0.5mm to 2mm larger than the diameter of the hole, preferably 0.8mm. The bolt protective sleeve 5 is made of rubber, which has a certain degree of flexibility and elasticity, and can better fit the bolt, providing more reliable protection and preventing cement slurry from seeping in. The inner diameter is 0.5mm to 2mm larger than the diameter of the hole 4, which not only makes it easy for the bolt protective sleeve 5 to be smoothly inserted into the hole and fit tightly with the bolt, but also ensures the stability after installation, and will not loosen or shift due to excessive gaps, effectively avoiding contamination of the bolt by concrete cement slurry.

[0024] In this embodiment, the handle 2 is a foldable structure, including a first rod 21 and a second rod 22 connected to the magnetic base 1 via hinges. The two ends of the second rod 22 are hinged to the upper end of the first rod 21, and the folded height does not exceed 10mm. The handle 2 is designed as a foldable structure, allowing the first rod 21 and the second rod 22 to be folded up when not in use, with a folded height not exceeding 10mm, significantly reducing space occupation and facilitating the storage and transportation of the protective cover. During use, the handle 2 can be unfolded via the hinges, making it convenient for operators to pick up and install the protective cover, improving flexibility and convenience of use.

[0025] The following is a method for protecting the embedded parts of bridge steel guardrails using this protective cover:

[0026] Step 1: After the foundation embedded parts and bolts of the bridge steel structure anti-collision guardrail are installed, grab handle 2 and place the protective cover of this bridge steel guardrail embedded part on the guardrail foundation embedded part, ensuring that each bolt exposed on the steel plate is covered by the plastic bolt protective sleeve 5.

[0027] Step 2: Fine-tune the magnetic base plate 1 so that the exposed steel strips 13 on each side are aligned with the sides of the guardrail foundation embedded parts. The exposed steel strips 13 on the magnetic base plate 1 are fitted onto the guardrail foundation embedded parts, and the magnetic patch 12 is tightly attached to the surface of the embedded parts.

[0028] Step 3: Spray release agent on the surface of the steel plate 11 and bolt protective sleeve 5 of the magnetic base 1, and pour the guardrail foundation concrete.

[0029] Step 4: After the foundation concrete is demolded, use a simple hook to hook the hook 3 on the magnetic base plate 1, and with the handle 2, remove the protective cover of the steel guardrail embedded parts from the guardrail foundation embedded parts.

[0030] Step 5: Clean the cement slurry adhering to the surface of the protective cover of the embedded parts of the steel guardrail of this bridge for future use.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A bridge steel guardrail embedment guard, characterized by: The device includes a rectangular magnetic base, with the longitudinal direction defined as extending along the length of the magnetic base and the transverse direction defined as extending along the width of the magnetic base. The magnetic base includes a steel plate, magnetic patches fixed to the lower surface of the steel plate by bolts, and four steel strips located around the four peripheries of the lower surface of the steel plate. The steel strips are distributed on the outer periphery of the magnetic patches, and the thickness of the steel strips is 2mm to 8mm greater than the thickness of the magnetic patches. A handle is provided in the center of the upper surface of the magnetic base, and hooks are provided at the four corners of the upper surface of the magnetic base. Several holes are provided on the magnetic base and around the handle, and bolt protective sleeves are provided at each hole.

2. The bridge steel guardrail embedment shield of claim 1, wherein: The number of holes is eight, with six holes evenly distributed on both sides of the magnetic base in an axially symmetrical arrangement. The three holes distributed on one side of the magnetic base are designated as the first hole, the second hole, and the third hole. The distance between the center of the first hole and the center of the second hole is 130mm, and the distance between the center of the second hole and the center of the third hole is 105mm. The remaining two holes are distributed on one side of the magnetic base and are designated as the fourth hole. The distance between the centers of two adjacent fourth holes and the distance between the center of the third hole and the center of the fourth hole are 80mm.

3. A bridge steel guardrail embedment protection cover according to claim 1 or 2, characterized in that: The thickness of the steel plate is 0.1mm to 0.5mm.

4. The bridge steel guardrail embedment shield of claim 3, wherein: The magnetic patch is a neodymium iron boron permanent magnet with an anti-rust coating on its surface, and is fixedly connected to the steel plate by countersunk bolts.

5. The bridge steel guardrail embedment shield of claim 3, wherein: The bolt protective sleeve is made of rubber, and its inner diameter is 0.5mm to 2mm larger than the diameter of the hole.

6. The bridge steel guardrail embedment shield of claim 3, wherein: The handle is a foldable structure, including a first rod and a second rod connected to the magnetic base by hinges, and the height after folding is no more than 10mm. The two ends of the second rod are hinged to the upper end of the first rod.

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