Fabricated concrete protective fence
Through the design of prefabricated concrete guardrails, the tenon and groove connections of the base section and the prefabricated section and the design of metal guardrails, the problems of long construction cycles and high maintenance costs in the existing technology are solved, and rapid installation and cost reduction are achieved effect.
Patent Information
- Application Number
- CN202420235364.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-30
AI Technical Summary
The existing road concrete guardrail has a long construction cycle, high labor costs, high maintenance costs, and integrated casting and forming lead to difficulty in overall replacement.
Adopt a prefabricated concrete guardrail design, including base sections and prefabricated sections. The base section and prefabricated section are connected to the tongue and groove through tenons. The metal guardrail is installed on the prefabricated sections. The base section has a drainage groove at the bottom, and rubber The gasket is used for fixing and is assembled on site after casting and forming in the factory.
It reduces construction cycle and cost, improves construction efficiency and safety, and is suitable for rapid installation and maintenance.
Smart Images
Figure CN222183171U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of highway protection facilities, in particular to an assembled concrete guardrail. Background Art
[0002] At present, my country's highway protection facilities basically follow the auxiliary facilities of expressways. For conventional highway concrete guardrails, they are generally cast on-site with on-site formwork and concrete solid structures, which leads to long construction periods and high labor costs. In addition, the existing road guardrails are cast in one piece, so the cost is relatively high. Once damaged by car accidents, mountain torrents, earthquakes and other factors, they need to be replaced as a whole, which has high maintenance costs, so improvements are needed. Utility Model Content
[0003] Based on this, it is necessary to provide a prefabricated concrete guardrail to address the above problems.
[0004] An assembled concrete guardrail comprises a base segment, a prefabricated segment and a metal guardrail, wherein the base segment and the prefabricated segment are both formed by casting concrete, the cross section of the base segment is trapezoidal, the bottom of the base segment is provided with a plugging hole, the top of the base segment is provided with a reinforcing rib, the reinforcing rib is vertically arranged upward, the prefabricated segment is installed on the base segment, the prefabricated segment is provided with a connecting hole corresponding to the reinforcing rib, tenons and mortise grooves are vertically arranged at both ends of the prefabricated segment, the tenons and mortise grooves of two adjacent prefabricated segments are mutually clamped, and the metal guardrail is installed on the upper end surface of the prefabricated segment.
[0005] Preferably, the metal guardrail includes a railing and a base, the two bases are installed side by side and at intervals on the prefabricated segment, the railing passes through the base and is extended along the length direction of the prefabricated segment.
[0006] Preferably, the railing and the base are made of stainless steel, and the railing is hollow.
[0007] Preferably, the bottom of the base segment is provided with a drainage groove, and the drainage groove is extended along the thickness direction of the base segment.
[0008] Preferably, a rubber gasket is provided between the base segment and the prefabricated segment.
[0009] The utility model is beneficial in that the splicing design can be cast in the factory and then transported to the site for assembly, thus reducing the construction period. The splicing design has the characteristics of simple structure, quick and convenient construction and low cost, and is suitable for rapid installation in emergency situations. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1This is a three-dimensional schematic diagram of an assembled concrete guardrail according to one embodiment;
[0011] Figure 2 This is a three-dimensional schematic diagram of an assembled concrete guardrail from another perspective. DETAILED DESCRIPTION
[0012] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0013] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.
[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0015] like Figures 1-2As shown, an assembled concrete guardrail includes a base segment 1, a prefabricated segment 2 and a metal guardrail 3. The base segment 1 and the prefabricated segment 2 are both cast by concrete. The cross section of the base segment 1 is trapezoidal. The bottom of the base segment 1 is provided with a plugging hole 11. The top of the base segment 1 is provided with a reinforcing rib 12, and the reinforcing rib 12 is vertically arranged upward. The prefabricated segment 2 is installed on the base segment 1. The prefabricated segment 2 is provided with a connecting hole 21 corresponding to the reinforcing rib 12. Tenons 22 and tenons 23 are arranged at both ends of the prefabricated segment 2 in the vertical direction. The tenons 22 and tenons 23 of the two adjacent sections of the prefabricated segment 2 are mutually engaged, and the metal guardrail 3 is installed on the upper end surface of the prefabricated segment 2. Specifically, in this embodiment, the base segment 1 and the prefabricated segment 2 are prefabricated in sections in the factory, and then spliced and assembled on site, which is convenient for transportation, suitable for rushing construction period and emergency operations, and effectively improves work efficiency. The cross section of the base segment 1 is a trapezoid, which is small at the top and large at the bottom, so as to increase the contact area with the ground and have a stronger bearing capacity. A plug hole 11 is provided at the bottom of the base segment 1 to match the plug rod plugged into the ground, locate the position of the base segment 1, and prevent the base segment 1 from slipping. A reinforcing rib 12 extending vertically upward is provided at the top of the base segment to match the prefabricated segment 2. The prefabricated segment 2 can be directly hoisted on the base segment 1 and assembled together using its own gravity. In order to achieve long-distance protection, two adjacent prefabricated segments 2 can be spliced. We respectively provide tenons 22 and tenons 23 at both ends of the prefabricated segment 2. When hoisting, the tenon 22 can be inserted into the tenon 23 from top to bottom, so that several sections of prefabricated segments 2 can be assembled together, and the assembly is extremely simple. In order to increase the overall height of the guardrail and reduce its weight for easier transportation, we installed a metal guardrail 3 on the prefabricated segment 2. The metal guardrail 3 is directly cast and formed integrally with the prefabricated segment 2, which reduces the amount of on-site construction and improves on-site construction efficiency.
[0016] like Figures 1-2 As shown, the metal guardrail 3 includes a railing 31 and a base 32. The two bases 32 are installed side by side and at intervals on the prefabricated segment 2. The railing 31 passes through the base 32 and is extended along the length direction of the prefabricated segment 2. Specifically, in this embodiment, the base 32 is directly cast integrally with the prefabricated segment 2, the railing 31 is inserted into the base 32, and is connected to the base 32 as a whole by a connector or welding, and the assembly is extremely simple and convenient.
[0017] like Figures 1-2 As shown, the railing 31 and the base 32 are made of stainless steel, which has strong corrosion resistance. The railing 31 is hollow, light in weight, easy to assemble, and low in cost.
[0018] like Figures 1-2As shown, the bottom of the base section 1 is provided with a drainage groove 13, and the drainage groove 13 is extended along the thickness direction of the base section 1. The accumulated water on the road side can be discharged into the canal through the drainage groove 13, so as to avoid water accumulation on the road and ensure safe driving.
[0019] like Figures 1-2 As shown, a rubber gasket 4 is provided between the base segment 1 and the prefabricated segment 2. Specifically, the prefabricated segment 2 is pressed on the rubber gasket 4 by its own gravity, so that the prefabricated segment 2 and the base segment 1 are more tightly connected, water is not easy to enter, and the reinforcing ribs 12 are prevented from rusting.
[0020] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. An assembled concrete guardrail, characterized in that: It includes a base segment, a prefabricated segment and a metal guardrail. The base segment and the prefabricated segment are both cast by concrete. The cross-section of the base segment is trapezoidal. The bottom of the base segment is provided with a plugging hole. The top of the base segment is provided with a reinforcing rib, and the reinforcing rib is vertically arranged upward. The prefabricated segment is installed on the base segment. The prefabricated segment is provided with a connecting hole corresponding to the reinforcing rib. Tenons and mortise grooves are vertically arranged at both ends of the prefabricated segment. The tenons and mortise grooves of the two adjacent prefabricated segments are mutually clamped, and the metal guardrail is installed on the upper end surface of the prefabricated segment.
2. The assembled concrete guardrail according to claim 1, characterized in that: The metal guardrail comprises a railing and a base, two bases are installed side by side and at intervals on the prefabricated segment, the railing passes through the base and is extended along the length direction of the prefabricated segment.
3. The assembled concrete guardrail according to claim 2, characterized in that: The railing and the base are made of stainless steel, and the railing is hollow.
4. The assembled concrete guardrail according to claim 1, characterized in that: The bottom of the base section is provided with a drainage groove, and the drainage groove is extended along the thickness direction of the base section.
5. The assembled concrete guardrail according to claim 1, characterized in that: A rubber gasket is arranged between the base segment and the prefabricated segment.