Expressway isolation fence
By designing structures such as support frames, connecting frames, and adjusting rods, the problems of low installation efficiency and bolt rust and corrosion on highway guardrails were solved, enabling rapid connection and safe inspection, thus improving installation efficiency and safety.
Patent Information
- Application Number
- CN202520292039.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-24
AI Technical Summary
The existing highway guardrails require a large number of threads during installation, resulting in low installation efficiency. Furthermore, the bolts are prone to rust and corrosion when exposed to the external environment for extended periods, affecting their tightness and isolation effectiveness.
The structure adopts a support frame, connecting frame, adjusting rod and snap-fit frame, etc. The isolation fence can be quickly connected and limited through sliding connection and limiting mechanism, avoiding the use of bolts. Infrared sensors are used to detect pedestrians and issue alarms to improve safety.
It improves the installation efficiency and practicality of the fence, prevents bolts from rusting and corroding, enhances the tightness and safety, and reduces the risk of accidents.
Smart Images

Figure CN223780751U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of highway guardrail technology, specifically a highway guardrail. Background Technology
[0002] Highway guardrails are mainly used as safety protection nets for highways and expressways. They can also be called: peach-shaped post guardrails, double-sided guardrails, double-ring guardrails, Dutch mesh, wavy mesh, triangular folded edge guardrails, etc. This type is the same as railway guardrails, but it is different from those used for bridges, residential areas, factories, airports, and stadiums. When used on highways, they are called highway or expressway guardrails, as well as highway fences, highway mesh fences, etc. Highway guardrails are one of the essential devices on highways. With the continuous development of highway construction, different types of highway guardrails are constantly appearing on the market.
[0003] When guardrails are placed on highways for isolation and protection, some pedestrians may damage them and then get on or off their vehicles on the highway, which is very dangerous. Therefore, it is necessary to use multiple guardrails together by bolts or welding to prevent pedestrians from damaging them.
[0004] However, this method requires the use of a large number of threads, which reduces the efficiency and practicality of installation. Furthermore, bolts exposed to the external environment for a long time are prone to rust and corrosion, resulting in reduced tightness and affecting the isolation effect. Utility Model Content
[0005] In view of the shortcomings of the prior art, this utility model provides a highway guardrail, which solves the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a highway guardrail includes a fixed bracket. Limiting base plates are fixedly connected to both the left and right sides of the bottom wall of the fixed bracket. Guide plates are fixedly connected to both the left and right sides of the top wall of the fixed bracket. A bearing frame is slidably connected to the top of the guide plates. An infrared sensor is sleeved on the top of the bearing frame. A fixed rod is rotatably connected between the bottom end of the bearing frame and the interior of the bearing frame. A connecting frame is fixedly connected to the side wall of the bearing frame away from the center of the fixed bracket. A limiting frame is inserted into the connecting frame on the right side of the fixed bracket. A pushing frame is fixedly connected to the front side wall of the limiting frame on the outer wall of the connecting frame. An adjusting rod is rotatably connected to the center of the rear side wall of the bearing frame. Slide rails are fixedly connected to both the upper and lower sides of the adjusting rod on the rear side wall of the bearing frame. A snap-fit frame is rotatably connected to the outer wall of the adjusting rod on the outer wall of the slide rail. An insert tube is slidably connected to the interior of the rear end of the bearing frame outside the snap-fit frame. A baffle is fixedly connected to the interior of the rear side wall of the bearing frame inside the rear end of the insert tube. A return spring is fixedly connected to the front end of the baffle inside the insert tube. A pressing block is sleeved on the exterior of the insert tube inside the bearing frame. An isolation frame is fixedly connected between the pressing blocks.
[0007] Preferably, the fixed support top wall is provided with a fixed groove on both sides, the guide plate is arranged in the fixed groove, and the limiting bottom plate is connected with the external fixed point through the arranged bolt rod.
[0008] Preferably, a plurality of bolt holes are arranged in the guide plate, the bearing frame is arranged in a 'C' shape, the outer wall of the guide plate is in contact with the inner wall of the bearing frame, the outer wall of the fixed rod is provided with a screw thread, the bottom of the infrared sensor is provided with a slot engaged with the top of the bearing frame, and the bottom of the infrared sensor is provided with an alarm.
[0009] Preferably, the connecting frame is arranged in an 'E' shape, the limiting frame side wall is provided with a plug rod engaged with the inside of the connecting frame, the pushing frame and the connecting frame side wall are in sliding connection, and the connecting frame side wall is provided with a stop block on both sides of the pushing frame.
[0010] Preferably, the outer wall of the adjusting rod is provided with a screw thread, the clamping frame and the sliding rail are in sliding connection, and the rear end of the plug tube is provided with a plug hole engaged with the clamping frame.
[0011] Preferably, the side wall of the plug tube is provided with a sliding groove in sliding connection with the baffle, the side walls of the upper and lower ends of the extrusion block are provided with guide grooves, and the side wall of the extrusion block and the inner wall of the bearing frame are in sliding connection.
[0012] The utility model provides a highway isolation fence. Has the following beneficial effects:
[0013] When the highway isolation fence is used, the limiting bottom plate is connected with the external fixed point, the connecting frames of the bearing frame side walls are connected between the plurality of isolation fences, the limiting frames are connected between the bearing frames through the connecting frames, the extrusion block is inserted into the bearing frame by the inclined isolation frame, until the isolation frame is in a horizontal state, the extrusion block extrudes the plug tube, and the plug tube is inserted into the extrusion block under the action of the reset spring, so that the limiting of the isolation frame is realized, the problem that a large number of threads need to be used to install the isolation fence assembly when the existing isolation fence is installed is solved, the efficiency and practicability of installation are reduced, and the isolation fence has the advantages of convenient disassembly and assembly.
[0014] When the highway isolation fence is used, the rotary adjusting rod drives the clamping frame to move, the clamping frame is inserted into the plug tube, and the clamping frame limits the plug tube, so that the problem that the existing isolation fence bolt is prone to rust and corrosion when exposed to the external environment for a long time is solved, the fastening degree is reduced, and the isolation fence has the advantage of convenient limiting. ACCURACY
[0015] Figure 1 The utility model structural orthographic projection is provided with three axes;
[0016] Figure 2 The utility model clamping frame schematic view is provided with three axes;
[0017] Figure 3 It is a schematic diagram of the extrusion block of the utility model;
[0018] Figure 4 It is a schematic diagram of the cannula of the utility model.
[0019] Among them, 1, fixed support; 2, limit bottom plate; 3, guide plate; 4, bearing frame; 5, infrared sensor; 6, fixed rod; 7, connecting frame; 8, limit frame; 9, push frame; 10, adjusting rod; 11, slide rail; 12, clamping frame; 13, cannula; 14, baffle; 15, return spring; 16, extrusion block; 17, isolation frame. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0021] The utility model embodiment provides a kind of highway isolation fence, such as Figures 1-4As shown, including fixed support 1, fixed support 1 bottom wall both sides are fixedly connected with limiting bottom plate 2, fixed support 1 top wall both sides are fixedly connected with guide plate 3, fixed support 1 top wall both sides are provided with fixed groove, guide plate 3 is arranged in the fixed groove, limiting bottom plate 2 is connected with external fixed point through the setting bolt rod, guide plate 3 inside is provided with a plurality of bolt holes, guide plate 3 top is slidably connected with bearing frame 4, bearing frame 4 is arranged as "C", the outer wall of guide plate 3 is in contact with the inner wall of bearing frame 4, bearing frame 4 top is sleeved with infrared sensor 5, infrared sensor 5 bottom is provided with the insertion slot that is engaged with the top of bearing frame 4, infrared sensor 5 bottom is provided with alarm, by installing infrared sensor 5 on the highway guardrail, can identify detection pedestrian into highway and send out alarm, to prevent accidents from happening, the inside of bearing frame 4 bottom end is rotatably connected with the inside of bearing frame 4, and the outer wall of fixed rod 6 is provided with a screw, and the side wall of the end of bearing frame 4 away from the center of fixed support 1 is fixedly connected with connecting frame 7, the inside of connecting frame 7 located at the right side of fixed support 1 is inserted with limiting frame 8, limiting bottom plate 2 is connected with external fixed point, a plurality of isolation fences are connected through the connecting frame 7 of the side wall of bearing frame 4, limiting frame 8 is connected between bearing frame 4 through connecting frame 7, the side wall of the front end of limiting frame 8 is fixedly connected with push frame 9 outside the outer wall of connecting frame 7, connecting frame 7 is arranged as "E", the side wall of limiting frame 8 is provided with the insertion rod engaged with the inside of connecting frame 7, push frame 9 and the side wall of connecting frame 7 form sliding connection, the side wall of connecting frame 7 is located on the upper and lower sides of push frame 9 and is provided with a stopper, the center position of the rear side wall of bearing frame 4 is rotatably connected with adjusting rod 10, the outer wall of adjusting rod 10 is provided with a screw, the rear side wall of bearing frame 4 is fixedly connected with slide rail 11 on the upper and lower sides of adjusting rod 10, the outer wall of adjusting rod 10 is rotatably connected with clamping frame 12 outside the outer wall of slide rail 11, the inside of rear end of bearing frame 4 is slidably connected with insertion tube 13 outside clamping frame 12, clamping frame 12 and slide rail 11 form sliding connection, the inside of rear end of insertion tube 13 is provided with the insertion hole engaged with clamping frame 12, the rear side wall of bearing frame 4 is fixedly connected with baffle 14 inside the rear end of insertion tube 13, the side wall of insertion tube 13 is provided with the sliding slot slidably connected with baffle 14, the inside of insertion tube 13 is fixedly connected with return spring 15 in front of baffle 14, the inside of bearing frame 4 is sleeved with extrusion block 16 outside insertion tube 13, the upper and lower end side walls of extrusion block 16 are provided with guide grooves, the side wall of extrusion block 16 and the inner wall of bearing frame 4 form sliding connection, and the isolation frame 17 is fixedly connected between the extrusion blocks 16. Inclined isolation frame 17 makes extrusion block 16 inserted into bearing frame 4, until isolation frame 17 holds horizontal state, extrusion block 16 extrudes insertion tube 13, insertion tube 13 is inserted into extrusion block 16 under the action of return spring 15, so as to realize the limiting of isolation frame 17, rotating adjusting rod 10, adjusting rod 10 drives clamping frame 12 to move, clamping frame 12 is inserted into insertion tube 13, clamping frame 12 limits insertion tube 13.
[0022] Working principle:
[0023] The highway isolation fence, when in use, is connected with external fixed points through the limiting bottom plate 2, is connected between a plurality of isolation fences through the connecting frame 7 of the side wall of the bearing frame 4, is connected between the bearing frames 4 through the connecting frame 7 of the limiting frame 8, the inclined isolation frame 17 makes the extrusion block 16 inserted into the bearing frame 4 until the isolation frame 17 is in a horizontal state, the extrusion block 16 extrudes the insertion pipe 13, the insertion pipe 13 is inserted into the extrusion block 16 under the action of the reset spring 15, so that the limiting of the isolation frame 17 is realized, the rotating adjusting rod 10 is adjusted, the adjusting rod 10 drives the clamping frame 12 to move, the clamping frame 12 is inserted into the insertion pipe 13, and the insertion pipe 13 is limited by the clamping frame 12.
[0024] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A highway guardrail, comprising a fixed bracket (1), characterized in that: The fixed bracket (1) has a limiting base plate (2) fixedly connected to the left and right sides of the bottom wall. The fixed bracket (1) has a guide plate (3) fixedly connected to the left and right sides of the top wall. The guide plate (3) has a slidable support frame (4) connected to the top of the guide plate (3). The support frame (4) has an infrared sensor (5) sleeved on the top of the support frame (4). The bottom end of the support frame (4) is rotatably connected to the inside of the support frame (4). The support frame (4) has a connecting frame (7) fixedly connected to the side wall of one end away from the center of the fixed bracket (1). The connecting frame (7) located on the right side of the fixed bracket (1) has a limiting frame (8) inserted inside. The front side wall of the limiting frame (8) is fixedly connected to a push frame (9) located on the outer wall of the connecting frame (7). The support frame (4) has a supporting frame (9) fixedly connected to the rear side of the support frame (4). An adjusting rod (10) is rotatably connected to the center of the wall. The rear side wall of the support frame (4) is fixedly connected to the upper and lower sides of the adjusting rod (10). The outer wall of the adjusting rod (10) is rotatably connected to the outer wall of the slide rail (11). The inner rear end of the support frame (4) is slidably connected to the outer side of the clip (12). The rear side wall of the support frame (4) is fixedly connected to the inner rear end of the insertion tube (13). The inner side of the insertion tube (13) is fixedly connected to the inner rear end of the insertion tube (13). The inner side of the insertion tube (13) is fixedly connected to the front end of the baffle (14). The outer side of the insertion tube (13) is sleeved with a pressing block (16) inside the support frame (4). An isolation frame (17) is fixedly connected between the pressing blocks (16).
2. A highway guardrail according to claim 1, characterized in that: The fixed bracket (1) has fixed grooves on both the left and right sides of the top wall, the guide plate (3) is set in the fixed groove, and the limiting base plate (2) is connected to the external fixing point by setting bolt rods.
3. A highway guardrail according to claim 1, characterized in that: The guide plate (3) has several bolt holes inside. The support frame (4) is arranged in a "C" shape. The outer wall of the guide plate (3) contacts the inner wall of the support frame (4). The outer wall of the fixing rod (6) is threaded. The bottom of the infrared sensor (5) has a slot that engages with the top of the support frame (4). An alarm is provided at the bottom of the infrared sensor (5).
4. A highway guardrail according to claim 1, characterized in that: The connecting frame (7) is arranged in an "E" shape. The side wall of the limiting frame (8) is provided with a plug rod that meshes with the inside of the connecting frame (7). The pushing frame (9) and the side wall of the connecting frame (7) form a sliding connection. The side wall of the connecting frame (7) is provided with blocks on both the upper and lower sides of the pushing frame (9).
5. A highway guardrail according to claim 1, characterized in that: The adjusting rod (10) has a threaded outer wall, the snap-fit bracket (12) and the slide rail (11) form a sliding connection, and the insert tube (13) has an insertion hole inside the rear end that engages with the snap-fit bracket (12).
6. A highway guardrail according to claim 1, characterized in that: The insertion tube (13) has a sliding groove on its side wall that is slidably connected to the baffle (14), and the upper and lower side walls of the extrusion block (16) have guide grooves. The side wall of the extrusion block (16) is slidably connected to the inner wall of the support frame (4).