Safety protection fence for highway engineering
By designing a foldable safety guardrail structure and a simplified assembly method, the problems of large transportation space and cumbersome connection in existing technologies have been solved, achieving convenient transportation and use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOTOU JUNHUI ENG PROJECT MANAGEMENT CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-05-29
AI Technical Summary
The existing safety guardrails used in highway engineering cannot be folded and stored, resulting in large transportation space, complicated connection and fixing processes, easy loss of bolts, and inconvenience in use.
A safety guardrail structure including mounting rods, horizontal bars, and vertical bars was designed. It can be folded and stored by hinged joint rotation connection and limiting mechanism, and the connection and fixing method of insert plate, slot and fixing pin is adopted to simplify the splicing process.
It enables convenient folding and storage of safety guardrails, reducing transportation space, and improves the convenience of transportation and use through simplified splicing methods.
Smart Images
Figure CN224299858U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safety guardrail technology for highway engineering, and specifically discloses a safety guardrail for highway engineering. Background Technology
[0002] Highway engineering refers to the technology and science of planning, designing, constructing, maintaining, and managing highways and related facilities. It involves multiple fields such as roads, bridges, tunnels, and traffic engineering, and is an important component of modern transportation infrastructure. In highway engineering, safety guardrails are important traffic safety facilities.
[0003] Existing safety guardrails used in highway engineering are mostly fixed structures, which cannot be folded and stored. This results in large size of existing safety guardrails, which take up a lot of space during transportation and are inconvenient to transport. In addition, existing safety guardrails are mostly fixed by bolts during the splicing process, which is cumbersome and the bolts are easy to lose, making them inconvenient to use. Utility Model Content
[0004] This utility model proposes a safety guardrail for highway engineering, which can be folded and stored to effectively reduce the volume of the safety guardrail, making it easier to transport and easier to splice and fix the safety guardrails in pairs, making it convenient to use.
[0005] This utility model is implemented as follows: a safety guardrail for highway engineering includes two mounting rods. Each of the two mounting rods has two vertically distributed first horizontal bars rotatably connected to its opposite sidewalls via hinges. Multiple first horizontal bars at the same height are grouped into two sets. Each of the two sets of first horizontal bars has a second horizontal bar rotatably connected to its opposite end via hinges. Multiple second horizontal bars at the same height are grouped into two sets. A third horizontal bar is rotatably connected between each set of second horizontal bars via hinges. Vertical bars are fixedly connected between each set of first horizontal bars, each set of second horizontal bars, and each set of third horizontal bars. Limiting mechanisms are provided between the two upper second horizontal bars and the two upper first horizontal bars and the upper third horizontal bars, respectively. Matching connecting and fixing mechanisms are provided on the opposite sidewalls of the two mounting rods.
[0006] The connecting and fixing mechanism includes two insert plates fixedly connected to the left side wall of the left mounting rod. The upper end face of the insert plate has a first through hole. The right side wall of the right mounting rod has two slots that match the two insert plates respectively. The upper and lower end faces of the slots have second through holes. The two second through holes are jointly provided with an L-shaped fixing pin.
[0007] As a preferred embodiment of the safety guardrail for highway engineering according to this utility model, the limiting mechanism includes a storage groove opened at both ends of the upper second horizontal bar, and the storage groove is slidably connected with a limiting pin.
[0008] The side wall opposite to the two first horizontal bars at the top and the side wall opposite to the third horizontal bar at the top are both provided with limiting grooves that match the limiting pins.
[0009] As a preferred embodiment of the safety guardrail for highway engineering of this utility model, the connecting and fixing mechanism further includes a cavity opened inside the right mounting rod. A sliding rod is provided inside the cavity. Two connecting blocks, which are distributed vertically and match the inner wall of the cavity, are fixedly connected to the outer wall of the sliding rod. A second notch is opened through the right side wall of the right mounting rod, which is located above the two slots respectively. One end of the two fixing pins passes through the two second notches respectively and is fixedly connected to the two connecting blocks respectively.
[0010] As a preferred embodiment of the safety guardrail for highway engineering according to this utility model, the interior of the limiting groove and one end of the limiting pin are both fixedly connected with matching magnets.
[0011] As a preferred embodiment of the safety guardrail for highway engineering of this utility model, a first notch is provided through the upper end face of the upper second horizontal bar, and a push plate is fixedly connected to the upper end face of the limiting pin, which passes through the first notch and extends to the upper part of the second horizontal bar.
[0012] As a preferred embodiment of the safety guardrail for highway engineering according to this utility model, a spring sleeved on the outer wall of the slide rod is fixedly connected between the upper end of the cavity and the upper end face of the upper connecting block.
[0013] As a preferred embodiment of the safety guardrail for highway engineering according to this utility model, the upper end of the sliding rod extends above the right-side mounting rod and is fixedly connected to a pull block, and the sliding rod is slidably connected to the right-side mounting rod.
[0014] The beneficial effects of this utility model are:
[0015] Push one of the mounting rods to rotate and fold the two sets of first crossbars, the two sets of second crossbars, and the two third crossbars until the safety guardrail is completely folded. This allows the safety guardrail to be folded and stored, effectively reducing its volume and making it easier to transport.
[0016] Place the two safety guardrails horizontally, aligning the left end of one guardrail with the right end of the other. Insert the two inserts on one guardrail into the two slots on the other guardrail, and then secure the inserts into the slots with fixing pins. This allows for quick and easy splicing and fixing of the two safety guardrails for convenient use. Attached Figure Description
[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a front cross-sectional view of the present invention.
[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram of part a;
[0021] Figure 4 This utility model Figure 2 Enlarged structural diagram of section b in the middle;
[0022] Figure 5 This is a top view of the folded cross-sectional structure of this utility model.
[0023] The markings in the diagram are: 1. Mounting rod; 2. First horizontal bar; 3. Second horizontal bar; 4. Third horizontal bar; 5. Vertical bar; 6. Insert plate; 7. First through hole; 8. Slot; 9. Second through hole; 10. Fixing pin; 11. Storage groove; 12. First notch; 13. Limiting pin; 14. Limiting groove; 15. Cavity; 16. Sliding rod; 17. Connecting block; 18. Second notch; 19. Magnet; 20. Push plate; 21. Spring; 22. Pull block. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0025] Please see Figure 1-5A safety guardrail for highway engineering includes two mounting rods 1. Each of the two mounting rods 1 has two vertically distributed first horizontal bars 2 rotatably connected to its opposite side wall via hinges. Multiple first horizontal bars 2 at the same height are grouped into two groups. Each of the two groups of first horizontal bars 2 has a second horizontal bar 3 rotatably connected to its opposite end via hinges. Multiple second horizontal bars 3 at the same height are grouped into two groups. Each of the two groups of second horizontal bars 3 is rotatably connected to a third horizontal bar 4 via hinges. Vertical bars 5 are fixedly connected between the two groups of first horizontal bars 2, the two groups of second horizontal bars 3, and the two third horizontal bars 4. Limiting mechanisms are provided between the two upper second horizontal bars 3 and the two upper first horizontal bars 2 and the upper third horizontal bars 4, respectively. Each of the two mounting rods 1 has a matching connecting and fixing mechanism on its opposite side wall.
[0026] The connecting and fixing mechanism includes two insert plates 6 fixedly connected to the left side wall of the left mounting rod 1. The upper end face of the insert plate 6 is provided with a first through hole 7. The right side wall of the right mounting rod 1 is fixedly connected with two slots 8 that match the two insert plates 6 respectively. The upper and lower end faces of the slots 8 are provided with second through holes 9. The two second through holes 9 are provided with an L-shaped fixing pin 10.
[0027] In this embodiment: before use, the safety guardrail is in a folded and stored state, such as... Figure 5 As shown, in use, one of the mounting rods 1 is placed in place, and then the other mounting rod 1 is pulled. During the pulling process, the two sets of first crossbars 2, the two sets of second crossbars 3, and the two third crossbars 4 rotate through the hinge, causing the two sets of first crossbars 2, the two sets of second crossbars 3, and the two third crossbars 4 to rotate to a horizontal state, as shown. Figure 2 As shown, the safety railing is then limited by a limiting mechanism to prevent the two sets of first horizontal bars 2, two sets of second horizontal bars 3, and two sets of third horizontal bars 4 from bending arbitrarily, thus allowing the safety railing to be unfolded for use. When folding the safety railing for storage, the limiting mechanism is released, and one of the mounting rods 1 is pushed, causing the two sets of first horizontal bars 2, two sets of second horizontal bars 3, and two sets of third horizontal bars 4 to rotate and fold until the safety railing is folded as shown. Figure 5 As shown in the diagram, the safety guardrail can be folded and stored, effectively reducing its volume and making it easier to transport.
[0028] When splicing two safety guardrails, place them horizontally, aligning the left end of one guardrail with the right end of the other. Insert the two insert plates 6 on one guardrail into the two slots 8 on the other guardrail. Then, move the two fixing pins 10 downwards, allowing them to pass through the first through hole 7 and the two second through holes 9, thereby fixing the insert plates 6 into the slots 8. This allows for quick and easy splicing and fixing of the two safety guardrails, making them convenient to use.
[0029] As a technical optimization of this utility model, the limiting mechanism includes a storage groove 11 opened at both ends of the upper second horizontal bar 3, and a limiting pin 13 is slidably connected inside the storage groove 11;
[0030] The side wall opposite to the two upper first horizontal bars 2 and the side wall opposite to the upper third horizontal bar 4 are provided with limiting grooves 14 that match the limiting pins 13.
[0031] In this embodiment: when limiting the two sets of first crossbars 2, two sets of second crossbars 3 and two third crossbars 4, the push plate 20 pushes the limiting pin 13 to move, so that the limiting pin 13 moves out of the storage groove 11 and enters the corresponding limiting groove 14. Then, through the mutual cooperation between the limiting pin 13, the storage groove 11 and the limiting groove 14, the two sets of first crossbars 2, two sets of second crossbars 3 and two third crossbars 4 are limited.
[0032] As a technical optimization of this utility model, the connecting and fixing mechanism also includes a cavity 15 opened inside the right mounting rod 1. A slide rod 16 is provided inside the cavity 15. Two connecting blocks 17, which are distributed vertically and match the inner wall of the cavity 15, are fixedly connected to the outer wall of the slide rod 16. A second notch 18 is opened through the right side wall of the right mounting rod 1, which is located above the two slots 8 respectively. One end of the two fixing pins 10 passes through the two second notches 18 respectively and is fixedly connected to the two connecting blocks 17 respectively.
[0033] In this embodiment: During the movement of the slide rod 16, the slide rod 16, together with the two connecting blocks 17, can drive the two fixing pins 10 to move, thereby facilitating the adjustment of the position of the two fixing pins 10.
[0034] As a technical optimization of this utility model, the inside of the limiting groove 14 and one end of the limiting pin 13 are both fixedly connected with matching magnets 19.
[0035] In this embodiment, the limiting pin 13 can be attracted and fixed in the limiting groove 14 by the mutual cooperation between the two magnets 19, so as to prevent the limiting pin 13 from falling out of the limiting groove 14.
[0036] As a technical optimization of this utility model, a first notch 12 is provided through the upper end face of the second horizontal bar 3, and a push plate 20 that passes through the first notch 12 and extends to the upper part of the second horizontal bar 3 is fixedly connected to the upper end face of the limiting pin 13.
[0037] In this embodiment: the push plate 20 can drive the limit pin 13 to move, and the push plate 20 can be moved through the first notch 12.
[0038] As a technical optimization of this utility model, a spring 21 sleeved on the outer wall of the slide rod 16 is fixedly connected between the upper end of the cavity 15 and the upper end face of the upper connecting block 17.
[0039] In this embodiment, the spring force of the spring 21 can limit the sliding rod 16 and the fixing pin 10, so that the sliding rod 16 and the fixing pin 10 will not move upward without external force, thus stably fixing the two safety guardrails together.
[0040] As a technical optimization of this utility model, the upper end of the slide rod 16 extends above the right mounting rod 1 and is fixedly connected to the pull block 22, and the slide rod 16 is slidably connected to the right mounting rod 1.
[0041] In this embodiment, the sliding rod 16 can be moved by the pull block 22.
[0042] The working principle and usage process of this utility model are as follows: In use, one mounting rod 1 is placed in place, and then the other mounting rod 1 is pulled. During the pulling process, the two sets of first horizontal bars 2, the two sets of second horizontal bars 3, and the two third horizontal bars 4 rotate through the hinge, causing the two sets of first horizontal bars 2, the two sets of second horizontal bars 3, and the two third horizontal bars 4 to rotate to a horizontal state. Figure 2 As shown, the limit pin 13 is then moved by the push plate 20, so that the limit pin 13 moves out of the storage groove 11 and enters the corresponding limit groove 14. Then, through the cooperation between the limit pin 13, the storage groove 11 and the limit groove 14, the two sets of first horizontal bars 2, the two sets of second horizontal bars 3 and the two sets of third horizontal bars 4 are limited, preventing the two sets of first horizontal bars 2, the two sets of second horizontal bars 3 and the two sets of third horizontal bars 4 from bending at will, so that the safety guardrail can be unfolded and used.
[0043] When splicing two safety guardrails, place them horizontally, aligning the left end of one guardrail with the right end of the other. Insert the two insert plates 6 on one guardrail into the two slots 8 on the other guardrail. Then, move the slide rod 16 downwards. The slide rod 16, together with the two connecting blocks 17, moves the two fixing pins 10 downwards, allowing the fixing pins 10 to pass through the first through hole 7 and the two second through holes 9, thereby fixing the insert plates 6 into the slots 8. This facilitates quick and easy splicing and fixing of the two safety guardrails.
[0044] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0045] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A safety guardrail for highway engineering, comprising two mounting posts (1), characterized in that: Two mounting rods (1) are rotatably connected to two vertically distributed first horizontal bars (2) on opposite side walls via hinges. Two of the first horizontal bars (2) at the same height are grouped together. Two of the two groups of first horizontal bars (2) are rotatably connected to second horizontal bars (3) at opposite ends via hinges. Two of the two groups of second horizontal bars (3) at the same height are grouped together. Three horizontal bars (4) are rotatably connected between the two groups of second horizontal bars (3) via hinges. Vertical bars (5) are fixedly connected between the two groups of first horizontal bars (2), the two groups of second horizontal bars (3) and the two third horizontal bars (4). Limiting mechanisms are provided between the two upper second horizontal bars (3) and the two upper first horizontal bars (2) and the upper third horizontal bars (4) respectively. Matching connection and fixing mechanisms are provided on opposite side walls of the two mounting rods (1). The connecting and fixing mechanism includes two insert plates (6) fixedly connected to the left side wall of the left mounting rod (1). The upper end face of the insert plate (6) is provided with a first through hole (7). The right side wall of the right mounting rod (1) is fixedly connected with two slots (8) that match the two insert plates (6). The upper and lower end faces of the slots (8) are provided with second through holes (9). The two second through holes (9) are provided with an L-shaped fixing pin (10).
2. The safety guardrail for highway engineering according to claim 1, characterized in that: The limiting mechanism includes a storage groove (11) located at both ends of the upper second crossbar (3), and a limiting pin (13) is slidably connected inside the storage groove (11). The side wall opposite to the two first crossbars (2) and the side wall opposite to the third crossbar (4) are provided with a limiting groove (14) that matches the limiting pin (13).
3. The safety guardrail for highway engineering according to claim 1, characterized in that: The connecting and fixing mechanism also includes a cavity (15) opened inside the right mounting rod (1). A slide rod (16) is provided inside the cavity (15). Two connecting blocks (17) are fixedly connected to the outer wall of the slide rod (16) and are distributed vertically and matched with the inner wall of the cavity (15). A second notch (18) is opened through the right side wall of the right mounting rod (1) and is located above the two slots (8). One end of the two fixing pins (10) passes through the two second notches (18) respectively and is fixedly connected to the two connecting blocks (17) respectively.
4. A safety guardrail for highway engineering according to claim 2, characterized in that: The inside of the limiting groove (14) and one end of the limiting pin (13) are both fixedly connected with matching magnets (19).
5. A safety guardrail for highway engineering according to claim 2, characterized in that: The upper end face of the second horizontal bar (3) is provided with a first notch (12), and the upper end face of the limiting pin (13) is fixedly connected with a push plate (20) that passes through the first notch (12) and extends to the top of the second horizontal bar (3).
6. A safety guardrail for highway engineering according to claim 3, characterized in that: A spring (21) sleeved on the outer wall of the slide rod (16) is fixedly connected between the upper end of the cavity (15) and the upper end face of the upper connecting block (17).
7. A safety guardrail for highway engineering according to claim 3, characterized in that: The upper end of the slide rod (16) extends above the right mounting rod (1) and is fixedly connected to a pull block (22). The slide rod (16) is slidably connected to the right mounting rod (1).