Roadbed guardrail
By introducing Z-shaped grooves and limit components into the roadbed guardrails and combining them with buffer devices, the problems of inconvenient disassembly and assembly of existing guardrails and severe collision damage are solved, and the effects of rapid maintenance and reduced impact force are achieved.
Patent Information
- Application Number
- CN202422916624.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing roadbed guardrails are not easy to quickly disassemble and replace damaged crossbars, have high maintenance costs and pose safety hazards, and lack buffer devices, resulting in greater injuries in the event of a collision.
A roadbed guardrail structure including a Z-shaped groove, a limit rod and a buffer assembly was designed. The Z-shaped groove is used to achieve initial limiting of the crossbar, the limit assembly is used to achieve secondary limiting, and a buffer assembly is provided to absorb impact force, simplify the disassembly and assembly process and reduce collision damage.
The crossbar can be quickly disassembled and assembled, which reduces maintenance costs, ensures road traffic safety, and minimizes the impact force during a collision, reducing damage to vehicles and passengers.
Smart Images
Figure CN223458737U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to road traffic safety facilities technical field, concretely is a kind of roadbed guardrail. BACKGROUND
[0002] Roadbed guardrail is crucial in traffic safety and infrastructure, it can effectively prevent vehicle from driving off the road, reduce the risk of accident occurrence, especially in turning, slope and dangerous section, guardrail not only helps to guide vehicle driving path, ensure that driver identifies road boundary, reduce the possibility of deviation and out of control, can also slow down or change the movement direction of vehicle when colliding, reduce the harm to occupant, in addition, guardrail separates pedestrian and vehicle driving area, improves the safety of pedestrian, maintains traffic order, reduces confusion.
[0003] However, existing roadbed guardrail is not convenient for the damaged cross bar to be quickly disassembled, maintenance and replacement operation is extremely inconvenient, the cross bar of traditional roadbed guardrail usually adopts fixed installation mode, in actual use process, when cross bar is damaged, this needs to consume a lot of manpower, material resources and time, not only increases maintenance cost, but also can affect road traffic safety during maintenance, leading to traffic congestion or security risk.In addition, the existing guardrail lacks buffer device, and is prone to cause great harm after collision.Therefore, we provide a kind of roadbed guardrail to solve the above problems. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at making up for the deficiency of prior art, provides roadbed guardrail.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of roadbed guardrail, including pedestal, the top of the pedestal is fixedly installed with stand, the inner wall of the stand is fixedly connected with connecting rod, the outer surface of the pedestal is equipped with Z-shaped slot, the inside of the Z-shaped slot is inserted with cross bar, the inside of the Z-shaped slot is equipped with limiting assembly, the inside of the stand is inserted with limiting rod, the inside of the limiting rod is equipped with insertion hole, and insertion hole penetrates to the outer surface of limiting rod, the inside of the Z-shaped slot is equipped with buffer assembly.
[0006] Preferably, the limiting assembly includes plug rod slidably connected with the inner wall of the stand, and the plug rod is inserted with the insertion hole.
[0007] Preferably, the outer surface of the plug rod is fixedly connected with pull plate, the outer surface of the pull plate is fixedly connected with limiting slider, and the limiting slider is slidably connected with the inner wall of the stand.
[0008] Preferably, the outer surface of the plug rod is sleeved with elastic piece one, one end of the elastic piece one is fixedly connected with the inner wall of the stand, and the other end of the elastic piece one is fixedly connected with the outer surface of the pull plate.
[0009] Preferably, the buffer assembly comprises a guide rod inserted inside the base, and a buffer pad is fixedly connected to one end of the guide rod close to the crossbar.
[0010] Preferably, the outer surface of the guide rod is sleeved with an elastic member two, one end of the elastic member two is fixedly connected with the inner wall of the Z-shaped groove, and the other end of the elastic member two is fixedly connected with the outer surface of the buffer pad.
[0011] Beneficial effects:
[0012] Compared with the prior art, the roadbed guardrail has the following beneficial effects:
[0013] First, the Z-shaped groove and the limiting rod are arranged, so that the preliminary limiting effect of the crossbar can be achieved, the limiting assembly is arranged, so that the limiting rod can be fixed and limited, thereby the secondary limiting effect of the crossbar can be achieved, and the Z-shaped groove, the limiting rod and the limiting assembly are used in cooperation, thereby the crossbar can be quickly disassembled, the maintenance efficiency of the guardrail is improved, the maintenance cost is reduced, and the continuous stability of road traffic safety is ensured.
[0014] Second, the crossbar is used for extruding the buffer pad, the guide rod is driven to shrink into the stand column, meanwhile, the buffer pad extrudes the elastic member two, the elastic member two is deformed and stores a certain elastic potential energy, at this time, the elastic member two can buffer and release the impact force from the crossbar, thereby the impact force generated when the vehicle collides can be reduced, and the harm is maximized. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model;
[0016] Figure 2 It is a part structure schematic view of the utility model;
[0017] Figure 3 It is a cross section structure schematic view of the utility model;
[0018] Figure 4 It is a limiting assembly schematic view of the utility model;
[0019] Figure 5 It is a buffer assembly schematic view of the utility model.
[0020] In the drawing: 1, base; 2, stand column; 3, connecting rod; 4, Z-shaped groove; 5, crossbar; 6, limiting assembly; 601, plug rod; 602, pull plate; 603, limiting sliding block; 604, elastic member one; 7, limiting rod; 8, plug hole; 9, buffer assembly; 901, guide rod; 902, buffer pad; 903, elastic member two. DETAILED DESCRIPTION
[0021] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and not to limit the scope of the utility model.
[0022] Referring to Figures 1-5 A roadbed guardrail comprises a base 1, which is the basic supporting part of the entire roadbed guardrail and is usually cast from high-strength cast iron material, has the shape of a cuboid, has a large bottom surface contact area to ensure stable fixation on the roadbed, and is provided with a plurality of uniformly distributed mounting holes at the top, which are firmly installed on the ground by expansion bolts and other connecting members to provide solid support for the column 2 and the entire guardrail system, and the thick and heavy structure design can withstand the force from vehicle collision and various natural environmental factors to ensure the stability of the guardrail during use.
[0023] The column 2 is fixedly installed at the top of the base 1, is installed vertically on the top of the base 1, is made of high-quality steel material such as Q235 carbon structural steel, has good strength and toughness, and has a height according to the design requirements of the roadbed guardrail, which is generally between 1-1.5 meters, and the inner wall of the column 2 is fixedly connected with the connecting rod 3 by welding, which makes the column 2 and the connecting rod 3 form a stable overall frame structure, enhances the rigidity of the entire guardrail, and at the same time, the internal space of the column 2 is used to accommodate the limiting rod 7 and part of the limiting assembly 6, the internal diameter of which matches the external diameter of the limiting rod 7 to ensure that the limiting rod 7 can be smoothly inserted and extracted and remain stable in the normal use state.
[0024] The inner wall of the column 2 is fixedly connected with the connecting rod 3, which is connected between the inner walls of the column 2 and is made of the same material as the column 2, i.e., Q235 carbon structural steel, has the shape of a cylinder, and is firmly connected with the inner walls of the column 2 at both ends by welding to form a horizontal support structure, the connecting rod 3 serves to increase the connecting strength between the columns 2 to prevent the columns 2 from deforming or tilting when subjected to external force, and by jointly forming a frame structure with the column 2, the connecting rod 3 can uniformly disperse the impact force transmitted from the cross rod 5 to improve the impact resistance of the entire guardrail system.
[0025] The outer surface of the base 1 is provided with a Z-shaped groove 4, which has a unique Z-shaped bending shape. The advantage of this shape design is that when the crossbar 5 is inserted into the Z-shaped groove 4, the crossbar 5 can be effectively limited in both horizontal and vertical directions. When the vehicle collides with the crossbar 5, the structure of the Z-shaped groove 4 can limit the displacement of the crossbar 5, preventing the crossbar 5 from easily coming out, thereby ensuring the integrity of the guardrail system. The inner wall of the Z-shaped groove 4 is finely processed and smooth, reducing the friction when the crossbar 5 is inserted and extracted, facilitating installation and disassembly operations. At the same time, the depth and width of the Z-shaped groove 4 are matched with the size of the crossbar 5, ensuring that the crossbar 5 can be tightly inserted therein and can be stably maintained in the groove when subjected to external force.
[0026] The crossbar 5 is inserted into the Z-shaped groove 4. The crossbar 5 is directly subjected to the impact force of the vehicle and is made of high-strength aluminum alloy material by extrusion molding. The cross-sectional shape of the crossbar 5 is rectangular, which has high bending strength. The length of the crossbar 5 is determined according to the installation span of the roadbed guardrail, which is generally between 2-4 meters. The two ends of the crossbar 5 are designed to match the height of the Z-shaped groove 4, facilitating insertion into the Z-shaped groove 4. In the normal use state, the crossbar 5 forms a continuous protective barrier by cooperating with the Z-shaped groove 4 and the limiting rod 7, blocking the vehicle from driving off the road. When the vehicle collides with the crossbar 5, the crossbar 5 can transmit the impact force to the buffer assembly 9 and the entire guardrail system. Through the deformation of the crossbar 5 and the action of the buffer assembly 9, energy is absorbed and dispersed, reducing the harm to the vehicle and passengers.
[0027] The limiting rod 7 is inserted into the interior of the upright column 2. The limiting rod 7 is a long rod made of metal material, which is matched with the internal space of the upright column 2 and the crossbar 5, and can be tightly inserted into the interior of the upright column 2 and penetrate the crossbar 5.
[0028] The limiting rod 7 is provided with a plug hole 8, which is accurately matched with the plug rod 601 in position and size. After the limiting rod 7 is installed in place, the crossbar 5 is secondarily limited by cooperating with the Z-shaped groove 4 and the plug rod 601, further enhancing the stability of the crossbar 5 in the guardrail structure, preventing the crossbar 5 from shaking, falling out or displacing when subjected to external force, and ensuring the reliability of the protection performance of the guardrail system.
[0029] The inside of the Z-shaped slot 4 is provided with a limiting assembly 6. The limiting assembly 6 comprises a plug rod 601 which is in sliding connection with the inner wall of the column 2, and the plug rod 601 is inserted into the insertion hole 8. The plug rod 601 is made of stainless steel, which has good corrosion resistance and mechanical strength. The shape of the plug rod 601 is an elongated cylinder, and its outer diameter is slightly smaller than the inner diameter of the insertion hole 8 on the limiting rod 7, so as to be smoothly inserted into the insertion hole 8. One end of the plug rod 601 is fixedly connected with a pull plate 602, and the other end is a smooth round head, which is convenient for insertion operation. When the plug rod 601 is inserted into the insertion hole 8, the limiting rod 7 can be limited in the vertical direction, and the limiting rod 7 is prevented from being pulled out of the column 2, so as to ensure the stability of the installation of the horizontal rod 5.
[0030] The outer surface of the plug rod 601 is fixedly connected with the pull plate 602, and the pull plate 602 is made of engineering plastic, which has certain strength and toughness, and the weight is relatively light. The shape of the pull plate 602 is rectangular, and the surface is provided with anti-skid texture, which is convenient for the operator to hold and pull. The pull plate 602 is connected with the plug rod 601 perpendicularly, and the limiting slide block 603 is fixedly connected to the outer surface of the pull plate 602. The pull plate 602 provides an application point for the operator, and the plug rod 601 is moved by pulling the pull plate 602, so as to realize the locking and unlocking operation of the limiting rod 7.
[0031] The outer surface of the pull plate 602 is fixedly connected with the limiting slide block 603, and the limiting slide block 603 is in sliding connection with the inner wall of the column 2. The limiting slide block 603 is fixedly connected to the outer surface of the pull plate 602, and the shape is small block structure, which is matched with the sliding groove of the inner wall of the column 2. The limiting slide block 603 can stably slide up and down in the sliding groove of the inner wall of the column 2, and the main function is to limit and guide the movement direction of the pull plate 602 during the sliding process of the plug rod 601 driven by the pull plate 602, so as to ensure that the plug rod 601 can slide along the predetermined straight line track, avoid the plug rod 601 from deviating or being stuck during the sliding process, and ensure the smoothness and reliability of the operation of the limiting assembly 6.
[0032] The outer surface of the insertion rod 601 is sleeved with an elastic member 604, one end of the elastic member 604 is fixedly connected with the inner wall of the stand column 2, and the other end of the elastic member 604 is fixedly connected with the outer surface of the pull plate 602. The elastic member 604 usually adopts a high-strength spring, one end of which is fixedly connected with the inner wall of the stand column 2, and the other end of which is fixedly connected with the outer surface of the pull plate 602. The elastic member 604 is in a stretched state in a normal state, and the elastic restoring force of the elastic member 604 always acts on the pull plate 602, so that the insertion rod 601 has a tendency to be inserted into the insertion hole 8. When the horizontal rod 5 needs to be disassembled, the pull plate 602 is pulled to overcome the pulling force of the elastic member 604, so that the insertion rod 601 is pulled out of the insertion hole 8. After the horizontal rod 5 is installed, the pull plate 602 is loosened, and the restoring force of the elastic member 604 can automatically pull the insertion rod 601 back to the original position and insert it into the insertion hole 8, thereby realizing automatic locking of the limiting rod 7, simplifying the operation process and improving the work efficiency.
[0033] The Z-shaped groove 4 is internally provided with a buffer assembly 9. The buffer assembly 9 comprises a guide rod 901 inserted in the base 1. The guide rod 901 is an elongated rod member made of metal, one end of which is inserted in the base 1, and the other end of which is close to the horizontal rod 5 and fixedly connected with a buffer pad 902. The diameter and length of the guide rod 901 are designed according to actual requirements. The mounting mode of the guide rod 901 in the base 1 can ensure that the guide rod 901 can stably slide in a predetermined direction when subjected to external force. The main function of the guide rod 901 is to provide guiding support for the buffer pad 902 when the vehicle collides with the horizontal rod 5, so that the buffer pad 902 can accurately transmit the impact force to the elastic member 902, and at the same time, limit the movement range of the buffer pad 902 to prevent excessive displacement or deviation, thereby ensuring the buffering effect and stability of the buffer assembly 9.
[0034] The end of the guide rod 901 close to the horizontal rod 5 is fixedly connected with the buffer pad 902. The buffer pad 902 is made of high-strength rubber or polyurethane and has good elasticity and buffering performance. The shape of the buffer pad 902 is block-shaped or plate-shaped structure, and the contact area with the horizontal rod 5 is large. The buffer pad 902 is fixedly connected to the end of the guide rod 901 close to the horizontal rod 5. When the vehicle collides with the horizontal rod 5, the horizontal rod 5 first transmits the impact force to the buffer pad 902. The buffer pad 902 absorbs and disperses part of the impact force through its elastic deformation, thereby reducing the direct damage of the impact force to the guardrail and the vehicle. At the same time, the elastic deformation of the buffer pad 902 can convert the impact force into pressure on the guide rod 901, so as to drive the guide rod 901 to shrink into the base 1, thereby starting the entire buffering mechanism.
[0035] The outer surface of the guide rod 901 is sleeved with an elastic member two 903, one end of the elastic member two 903 is fixedly connected with the inner wall of the Z-shaped groove 4, and the other end of the elastic member two 903 is fixedly connected with the outer surface of the buffer pad 902, the elastic member two 903 usually adopts a high-strength spring or an elastic rubber sleeve or the like elastic element, one end of which is fixedly connected with the inner wall of the Z-shaped groove 4, and the other end of which is fixedly connected with the outer surface of the buffer pad 902, in the normal state, the elastic member two 903 is in a natural state or a slightly compressed state, when the vehicle collides with the cross rod 5, the buffer pad 902 is extruded and pushes the guide rod 901, the elastic member two 903 is further compressed, a large amount of elastic potential energy is stored, and the elastic restoring force of the elastic member two 903 can generate a reverse force on the buffer pad 902, gradually offsetting the impact force generated by the vehicle collision, so that the cross rod 5 and the vehicle can smoothly recover to the normal state after the collision, effectively reducing the damage of the impact force generated by the vehicle collision on personnel and vehicles, and at the same time, the structural integrity of the guardrail itself is protected, and the service life of the guardrail is prolonged.
[0036] Working principle: when the vehicle collides with the cross rod 5, the cross rod 5 is impacted and transmits the force to the buffer pad 902, the buffer pad 902 is extruded to extrude the guide rod 901, the guide rod 901 is retracted into the base 1, in the process, the elastic member two 903 is extruded and deformed, and the elastic potential energy is stored, so as to buffer the impact force generated by the vehicle collision and reduce the damage, when it is necessary to dismount the cross rod 5 for maintenance or replacement, the pull plate 602 is pulled outwards, the pull plate 602 drives the plug rod 601 to slide along the inner wall of the stand column 2, the plug rod 601 is pulled out of the insertion hole 8 of the limiting rod 7, and the pull plate 602 drives the limiting sliding block 603 to slide along the inner wall of the stand column 2, the elastic member one 604 is stretched, at this time, the fixing and limiting of the limiting rod 7 are released, the limiting rod 7 can be pulled out of the stand column 2, then the cross rod 5 can be quickly dismounted from the Z-shaped groove 4, when the cross rod 5 is installed, the cross rod 5 is inserted into the Z-shaped groove 4, the limiting rod 7 is inserted into the stand column 2 and the cross rod 5 at the same time, the limiting rod 7 preliminarily limits the cross rod 5, finally the pull plate 602 is loosened, the plug rod 601 is inserted into the insertion hole 8 of the limiting rod 7 under the restoring force of the elastic member one 604, the fixing and limiting of the limiting rod 7 are realized, and the installation of the cross rod 5 is completed.
[0037] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A road barrier comprising a base (1), characterised in that: The top of the base (1) is fixedly provided with a stand (2), the inner wall of the stand (2) is fixedly connected with a connecting rod (3), the outer surface of the base (1) is provided with a Z-shaped groove (4), the Z-shaped groove (4) is inserted with a cross bar (5), the Z-shaped groove (4) is provided with a limiting assembly (6), the stand (2) is inserted with a limiting rod (7), and the limiting rod (7) is inserted and penetrates through the inside of the cross bar (5), the inside of the limiting rod (7) is provided with a insertion hole (8), and the insertion hole (8) penetrates to the outer surface of the limiting rod (7), and the Z-shaped groove (4) is provided with a buffer assembly (9).
2. A road barrier according to claim 1, characterised in that: The limiting assembly (6) comprises an insertion rod (601) which is in sliding connection with the inner wall of the stand (2), and the insertion rod (601) is inserted with the insertion hole (8).
3. A road barrier according to claim 2, characterised in that: The outer surface of the insertion rod (601) is fixedly connected with a pull plate (602), the outer surface of the pull plate (602) is fixedly connected with a limiting sliding block (603), and the limiting sliding block (603) is in sliding connection with the inner wall of the stand (2).
4. A road barrier according to claim 3, wherein: The outer surface of the insertion rod (601) is provided with an elastic member one (604), one end of the elastic member one (604) is fixedly connected with the inner wall of the stand (2), and the other end of the elastic member one (604) is fixedly connected with the outer surface of the pull plate (602).
5. A road barrier according to claim 1, characterised in that: The buffer assembly (9) comprises a guide rod (901) which is inserted in the base (1), and the end of the guide rod (901) close to the cross bar (5) is fixedly connected with a buffer pad (902).
6. A road barrier according to claim 5, wherein: The outer surface of the guide rod (901) is provided with an elastic member two (903), one end of the elastic member two (903) is fixedly connected with the inner wall of the Z-shaped groove (4), and the other end of the elastic member two (903) is fixedly connected with the outer surface of the buffer pad (902).