A type of anti-collision buffer safety fence

Abstract

This invention relates to the field of fencing technology, specifically disclosing a collision-resistant and buffer-type safety fence, comprising: a fixed pile mechanism, which includes a square hole, a circular hole, a hemispherical groove, a hollow cylindrical tube, and a fixed pile body. Two hollow cylindrical tubes are respectively located on the left and right sides of the top of the fixed pile body. A square hole communicating with the inner cavity of each hollow cylindrical tube is opened in the center of its front side. Circular holes penetrating vertically are opened on both the left and right sides of the bottom of the fixed pile body. Two hemispherical grooves are equidistantly spaced along the circumference at the top of the inner cavity of the fixed pile body. This device is not only easy to install and disassemble, and has excellent buffering performance, but also possesses good environmental adaptability, economy, and reusability. It fundamentally solves the problems of irreversible deformation, difficult maintenance, and inconvenient assembly and disassembly of traditional rigid guardrails, providing an efficient, flexible, and reliable solution for construction safety protection.

Description

Technical Field

[0001] This invention relates to the field of fencing technology, specifically to a collision-resistant and buffer-type safety fence. Background Technology

[0002] Protective fencing is a core protective facility in the field of fixed buildings, widely used in municipal roads, industrial parks, construction sites, communities, and other scenarios. Its core functions are spatial isolation and security protection. Current mainstream fencing is mostly made of rigid metal, concrete, or simple splicing structures, fixed by bolts, welding, etc., which has significant drawbacks: it is prone to permanent deformation and collapse after impact, losing its protective function and causing secondary risks; installation requires precise positioning and drilling for anchoring, and dismantling relies on large equipment, resulting in low efficiency and high maintenance costs; some improved buffer fencing structures are complex, the difficulty of dismantling and assembly is not reduced, and its reusability and environmental adaptability are poor, making it difficult to meet the needs of multi-scenario and temporary deployment. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a collision-resistant and buffer-type safety fence, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a collision-resistant buffer safety fence, comprising: a fixed pile mechanism, a middle cylinder mechanism, a buffer mechanism, end posts, end post mounting holes, an inner core assembly, and a button. The fixed pile mechanism includes a square hole, a circular hole, a hemispherical groove, a hollow cylindrical tube, a fixed pile baffle, and a fixed pile body. Two hollow cylindrical tubes are respectively disposed on the left and right sides of the top of the fixed pile body. A square hole communicating with the inner cavity of each hollow cylindrical tube is opened in the middle of its rear side. Circular holes penetrating vertically are opened on both the left and right sides of the bottom of the fixed pile body. Two hemispherical grooves are equidistantly spaced along the circumference at the top of the inner cavity of the fixed pile body. The hemispherical grooves are distributed circumferentially around the central hollow cylindrical tube. Several fixed pile baffles are arranged equidistantly along the circumference at the top of the inner cavity of the fixed pile body. The fixed pile baffles and two hemispherical grooves are on the same circumference. The lower part of the intermediate cylinder mechanism is slidably inserted into the fixed pile mechanism and initially connected. The inner core assembly is slidably inserted into the inner cavity of the intermediate cylinder mechanism. The top of the end column has a through-hole. The end column is sleeved on the outer wall of the two hollow cylindrical tubes. A button is provided at the center of the rear side of the end column, and the position of the button corresponds to the position of the square hole. The buffer mechanism is located on the front side of the end column.

[0005] Preferably, the intermediate cylinder mechanism includes: an elastic protruding buckle, a hollow cylinder, and an intermediate cylinder body. The bottom end of the intermediate cylinder body is slidably and compatiblely inserted into the inner cavity of the hollow cylindrical tube. There are two hollow cylinders, which are respectively disposed on the left and right sides of the bottom end of the intermediate cylinder body. The two hollow cylinders are slidably and compatiblely inserted into the inner cavities of the two hollow cylindrical tubes. The elastic protruding buckle is disposed at the rear bottom of the hollow cylinder and is compatiblely inserted into the inner cavity of the square hole corresponding to its position.

[0006] Preferably, the inner core assembly includes: a limiting protruding hemisphere, an inner core locking block, and an inner core cylinder. There are two inner core cylinders, which are slidably fitted into the inner cavities of two hollow cylinders. The inner core locking block is located at the bottom end of the inner core cylinder and matches the fixing post baffle. The limiting protruding hemisphere is located at the top end of the inner core locking block and matches the hemisphere groove.

[0007] Preferably, the intermediate cylinder mechanism inserts a hollow cylindrical tube into the hollow cylindrical tube of the fixed pile mechanism through a bottom hollow cylinder, and achieves initial axial locking by automatically engaging the elastic protruding buckle with the square hole.

[0008] Preferably, after the inner core assembly is inserted into the hollow cylinder, the inner core cylinder abuts against the elastic protrusion buckle to prevent retraction. When the inner core assembly is rotated, the limiting protrusion hemisphere slides into the hemisphere groove to achieve circumferential locking, and the inner core locking block is rotated to the bottom of the fixed pile baffle to form axial interlock.

[0009] Preferably, the buffer mechanism includes: a fixed pulley, a telescopic plate, a movable pulley, a high-pressure piston cylinder, a piston, a piston rod, and a steel wire rope. The fixed pulleys are numerous, arranged in pairs, forming several groups. These groups of fixed pulleys are equidistantly positioned at the left and right ends of the front side of the end post along the vertical direction. The telescopic plates are also numerous, slidably and compatiblely inserted into the middle of the front side of the end post at equidistant vertical distances. The rear ends of the telescopic plates slidably extend beyond the rear side of the end post. The positions of the telescopic plates correspond one-to-one with the positions of the groups of fixed pulleys. The movable pulley... The high-pressure piston cylinders are rotatably mounted on the front side of the telescopic plate via bearings. Several high-pressure piston cylinders are equidistantly positioned at the rear center of the end post along the vertical direction. The positions of the high-pressure piston cylinders and the telescopic plates correspond one-to-one. A piston is slidably fitted into the rear cavity of the high-pressure piston cylinder. A piston rod is located at the rear center of the piston, with its rear end slidably extending outwards from the rear of the high-pressure piston cylinder. The rear end of the piston rod is positioned on the front side of the telescopic plate. Several steel wire cables are attached to the outer walls of several sets of fixed and movable pulleys.

[0010] Preferably, when the steel wire cable is subjected to impact and stretching, the impact force is transmitted to the telescopic plate through a pulley system consisting of a fixed pulley and a movable pulley, driving the telescopic plate to move forward. The telescopic plate drives the piston in the high-pressure piston cylinder to slide through the piston rod, and the hydraulic damping effect of the high-pressure gas in the high-pressure piston cylinder is used to dissipate the impact kinetic energy and achieve buffering and energy absorption.

[0011] Preferably, reflective stickers are provided on the outer wall of the fixed pile body and the top of the outer wall of the intermediate cylinder body.

[0012] The anti-collision buffer safety fence proposed in this invention has the following advantages:

[0013] 1. During the installation process, the present invention achieves initial locking in one step by vertically pressing the intermediate cylinder mechanism into the fixing pile and automatically engaging the elastic protruding buckle with the square hole, simplifying the installation steps and enabling quick positioning and fixing without tools.

[0014] 2. By inserting the inner core assembly into the intermediate cylinder, the elastic protruding buckle can be held against from the inside without rotation, which enhances the stability of the locking structure, prevents accidental disengagement, improves temporary safety during installation, and provides a reliable foundation for subsequent operations.

[0015] 3. This invention uses the rotating decorative cap to drive the inner core mechanism to rotate synchronously, so that the limiting protrusion hemisphere slides into the hemisphere groove, achieving precise circumferential positioning and locking. At the same time, the inner core locking block rotates to the bottom of the fixed pile baffle to form axial interlock. This double locking mechanism ensures the high reliability of the connection, and the final secure installation is completed with just a simple rotation action.

[0016] 4. When the present invention is subjected to impact, the impact force is transmitted to the end post through the buffer mechanism, which pulls the telescopic plate forward and compresses the piston in the high-pressure piston cylinder. The energy is absorbed through hydraulic damping, which significantly improves the energy absorption efficiency and effectively reduces the damage caused by the impact to the guardrail structure and vehicle.

[0017] 5. When maintenance or adjustment is required, this invention can be unlocked simply by rotating the decorative cap in the opposite direction, allowing easy removal of the inner core component and the intermediate cylinder. This achieves quick and non-destructive disassembly, and all parts can be reused, greatly reducing maintenance costs and time, and minimizing traffic disruption.

[0018] 6. This device is not only easy to install and disassemble and has excellent buffering performance, but also has good environmental adaptability, economy and reusability. It fundamentally solves the problems of irreversible deformation, difficult maintenance and inconvenient disassembly of traditional rigid guardrails, and provides an efficient, flexible and reliable solution for construction safety protection. Attached Figure Description

[0019] Figure 1 This is a diagram illustrating the overall installation effect of the present invention;

[0020] Figure 2 This is a disassembly diagram of the intermediate cylinder mechanism, inner core assembly, and fixed pile mechanism;

[0021] Figure 3 This is a schematic diagram of the inner core assembly;

[0022] Figure 4 A schematic diagram showing the lateral locking of the intermediate cylinder mechanism, inner core assembly, and fixed pile mechanism;

[0023] Figure 5 This is a diagram of the internal structure of the fixed pile mechanism;

[0024] Figure 6 A schematic diagram showing the axial unlocking of the inner core assembly and the fixing pile mechanism;

[0025] Figure 7 A schematic diagram showing the axial locking of the inner core assembly and the fixing pile mechanism;

[0026] Figure 8 This is a schematic diagram of the buffer mechanism;

[0027] Figure 9 An exploded view of the buffer mechanism;

[0028] Figure 10 This is a schematic diagram of the end column structure;

[0029] Figure 11 This is a schematic diagram of the button's structure.

[0030] In the diagram: 1. Fixed pile mechanism; 101. Square hole; 102. Circular hole; 103. Hemispherical groove; 104. Hollow cylindrical tube; 105. Fixed pile baffle; 106. Fixed pile body; 2. Intermediate cylinder mechanism; 201. Elastic protruding buckle; 202. Hollow cylinder; 203. Intermediate cylinder body; 3. Reflective sticker; 4. Inner core assembly; 401. Limiting protruding hemispherical; 402. Inner core locking block; 403. Inner core cylinder; 5. Buffer mechanism; 501. Fixed pulley; 502. Telescopic plate; 503. Movable pulley; 504. High-pressure piston cylinder; 505. Piston; 506. Piston rod; 507. Steel wire rope; 6. End post; 7. End post mounting hole; 8. Button. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-11This invention provides a crash-resistant and buffer-type safety fence technical solution, including: a fixed pile mechanism 1, a middle cylinder mechanism 2, reflective stickers 3, an inner core component 4, a buffer mechanism 5, end posts 6, end post mounting holes 7, and buttons 8. The fixed pile mechanism 1 includes a square hole 101, a circular hole 102, a hemispherical groove 103, a hollow cylindrical tube 104, a fixed pile baffle 105, and a fixed pile body 106. The fixed pile body 106 serves as the installation foundation and core load-bearing body of the entire fence system. It is bolted to the ground or embedded parts through the circular hole 102 at its bottom to achieve stable fixation of the overall structure. There are two hollow cylindrical tubes 104, which are respectively set on the left and right sides of the top of the fixed pile body 106. A square hole 101 communicating with the inner cavity is provided in the middle of the rear side of the hollow cylindrical tube 104. The hollow cylindrical tube 104 serves as a guide and insertion channel for the intermediate cylinder mechanism 2, and its outer wall is also used to directly support and connect the end post 6 and the guardrail beam. Circular holes 102 penetrating vertically are provided on both the left and right sides of the bottom of the fixed pile body 106. Two hemispherical grooves 103 are equidistantly provided along the circumference at the top of the inner cavity of the fixed pile body 106. The two hemispherical grooves 103 are circumferentially distributed around the central hollow cylindrical tube 104. Several fixed pile baffles 105 are provided, equidistantly arranged along the circumference at the top of the inner cavity of the fixed pile body 106. The fixed pile baffles 105 and the two hemispherical grooves are equidistantly arranged along the circumference at the top of the inner cavity of the fixed pile body 106. 103 On the same circumference, after the inner core assembly rotates, the fixed pile baffle 105 is used to block the inner core locking block 402 from moving upward, forming an axial mechanical interlock to prevent accidental pull-out. The lower part of the intermediate cylinder mechanism 2 can be slidably inserted into the fixed pile mechanism 1 and initially connected. The intermediate cylinder mechanism 2, as the intermediate structure connecting the fixed pile mechanism 1 and the inner core assembly 4, not only achieves its own quick locking, but also provides insertion guidance and support for the inner core assembly 4. The inner core assembly 4 can be slidably inserted into the inner cavity of the intermediate cylinder mechanism 2. As the core component of the final locking and operation function, the inner core assembly 4 integrates torque transmission, axial and circumferential locking functions. The complete locking and unlocking of the system is achieved by rotation. The top of the end post 6 is provided with a through end. The post mounting hole 7 and the end post 6 are sleeved on the outer wall of the two hollow cylindrical tubes 104. The end post 6 serves as the end support and connection structure of the guardrail, connecting the fixed pile mechanism 1 and the buffer mechanism 5, and bearing and transmitting impact loads. A button 8 is provided in the middle of the rear side of the end post 6. The position of the button 8 corresponds to the position of the square hole 101. The buffer mechanism 5 is located on the front side of the end post 6. The buffer mechanism 5 is the core safety function module of the guardrail system. Through the combination of hydraulic damping and pulley block mechanism, it efficiently absorbs and dissipates collision energy and reduces accident damage. The reflective sticker 3 is set on the outer wall of the fixed pile body 106 and the outer wall of the intermediate cylinder mechanism 2. The reflective sticker 3 can use reflective materials to provide visual warnings in night or low light environments, thereby improving safety.

[0033] As a preferred embodiment, the intermediate cylinder mechanism 2 further includes: an elastic protruding buckle 201, a hollow cylinder 202, and an intermediate cylinder body 203. The bottom end of the intermediate cylinder body 203 is slidably and compatiblely inserted into the inner cavity of the hollow cylindrical tube 104. The outer wall of the intermediate cylinder body 203 is provided with reflective stickers 3. The intermediate cylinder body 203 is the main frame of the intermediate cylinder mechanism 2. There are two hollow cylinders 202, which are respectively disposed on the left and right sides of the bottom end of the intermediate cylinder body 203. The two hollow cylinders 202 are slidably and compatiblely inserted into the two hollow cylindrical tubes. In the inner cavity of 104, the hollow cylinder 202 is used to accommodate the inner core component 4. The elastic protruding buckle 201 is set at the rear bottom of the hollow cylinder 202. The elastic protruding buckle 201 is adapted to be inserted into the inner cavity of the square hole 101 corresponding to its position. The elastic protruding buckle 201 has elastic deformation capability, shrinks during insertion, and springs into the square hole 101 after being in place. It is an automatic locking element that can lock with one insertion. The elastic protruding buckle 201 has a flat upper and sloping lower structure, thereby preventing the elastic protruding buckle 201 from falling out of the inner cavity of the square hole 101 after being impacted, making the installation more stable.

[0034] As a preferred embodiment, the inner core assembly 4 further includes: a limiting protruding hemisphere 401, an inner core locking block 402, and an inner core cylinder 403. There are two inner core cylinders 403, which are slidably fitted into the inner cavities of the two hollow cylinders 202. The inner core cylinder 403 is the main body of the inner core mechanism, accommodating and connecting various functional structures to form a complete power transmission and locking execution unit. The inner core cylinder 403 can internally hold the elastic protruding buckle 201 in place, preventing the elastic protruding buckle 201 from retracting. The locking block 402 is located at the bottom end of the inner core cylinder 403. The inner core locking block 402 matches the fixed pile baffle 105. The inner core locking block 402 and the fixed pile baffle 105 cooperate to form an axial anti-pull-out structure, which is one of the main force-bearing components in the locked state. The limiting protruding hemisphere 401 is located at the top of the inner core locking block 402. The limiting protruding hemisphere 401 matches the hemisphere groove 103. The limiting protruding hemisphere 401 and the hemisphere groove 103 of the fixed pile form a ball-and-socket fit, providing a clear locking feel and reliable circumferential limiting.

[0035] More specifically, the intermediate cylinder mechanism 2 inserts its bottom hollow cylinder 202 into the hollow cylindrical tube 104 of the fixed pile mechanism 1. Initial axial locking is achieved by the automatic engagement of the elastic protrusion buckle 201 on the rear side of the hollow cylinder 202 with the square hole 101 of the hollow cylindrical tube 104. After the inner core assembly 4 is inserted into the hollow cylinder 202 of the intermediate cylinder mechanism 2, its inner core cylinder 403 abuts against the elastic protrusion buckle 201 to prevent retraction. Furthermore, when the inner core assembly 4 is rotated, the limiting protrusion hemisphere 401 at the top of the inner core locking block 402 slides into the hemispherical groove 103 of the fixed pile body 106 to achieve circumferential locking. At the same time, the inner core locking block 402 rotates to the bottom of the fixed pile baffle 105 to form an axial interlock; during disassembly, by rotating the inner core cylinder 403 of the inner core assembly 4 in the opposite direction by 90 degrees, the limiting protruding hemisphere 401 is disengaged from the hemisphere groove 103, and the inner core locking block 402 is misaligned with the fixed pile baffle 105, thus releasing the circumferential and axial locking and pulling out the inner core assembly 4; press the button 8 on the back side of the end post 6 to squeeze the elastic protruding buckle 201 so that it retracts into the inner cavity of the hollow cylinder 202, releasing the initial locking between the intermediate cylinder mechanism 2 and the fixed pile mechanism 1, and then pulling out the intermediate cylinder mechanism 2 to achieve rapid and non-destructive separation of all components.

[0036] As a preferred embodiment, the buffer mechanism 5 further includes: a fixed pulley 501, a telescopic plate 502, a movable pulley 503, a high-pressure piston cylinder 504, a piston 505, a piston rod 506, and a steel wire rope 507. The fixed pulleys 501 are numerous, arranged in pairs, forming several groups. These groups of fixed pulleys 501 are equidistantly positioned at the left and right ends of the front side of the end column 6 along the vertical direction. The fixed pulleys 501 are fixed to the end column 6, changing the direction of the steel wire rope 507 and forming a pulley system. The telescopic plates 502 are numerous, arranged along the vertical direction... Equivalently spaced downward sliding mating fittings are inserted into the front middle of the end post 6. The rear end of the telescopic plate 502 extends slidably beyond the rear side of the end post 6. The positions of several telescopic plates 502 correspond one-to-one with the positions of several sets of fixed pulleys 501. The telescopic plate 502 is used to install the movable pulley 503, and when the steel wire cable 507 is impacted, it moves forward, directly pushing the piston rod 506. It is the starting component for impact force transmission and buffering action. The movable pulley 503 is rotatably mounted on the front side of the telescopic plate 502 through bearings. The movable pulley 503 moves with the telescopic plate 502 and cooperates with the fixed pulleys 501 to form a pulley system. Several high-pressure piston cylinders 504 are arranged equidistantly along the vertical direction at the rear center of the end post 6. The positions of the high-pressure piston cylinders 504 and the telescopic plates 502 correspond one-to-one. The high-pressure piston cylinders 504 are filled with hydraulic oil, generating damping force through the compression of the piston 505. They are the main energy absorption and dissipation components. The piston 505 is slidably fitted into the rear cavity of the high-pressure piston cylinder 504. As the piston 505 moves within the high-pressure piston cylinder 504, the compression medium generates damping, converting kinetic energy into heat energy for dissipation. The piston rod 506 is located on the piston 504. At the rear center of 5, the rear end of piston rod 506 extends slidably out to the rear of high-pressure piston cylinder 504. The rear end of piston rod 506 is located at the front of telescopic plate 502. Piston rod 506 connects piston 505 and telescopic plate 502, transmitting impact force to piston 505. It is a key link for force transmission. There are several steel wire cables 507. Several steel wire cables 507 are respectively attached to the outer walls of several sets of fixed pulleys 501 and movable pulleys 503. The steel wire cables 507 are wound in the pulley group for interception and linkage between the movement of telescopic plate 502 and pulley system to realize the transmission and conversion of motion.

[0037] More specifically, the steel wire cable 507 of the buffer mechanism 5 is attached to the outer wall of the fixed pulley 501 and the movable pulley 503. When the steel wire cable 507 is stretched by the impact, the impact force is transmitted to the telescopic plate 502 through the pulley group composed of the fixed pulley 501 and the movable pulley 503, driving the telescopic plate 502 to move forward. The telescopic plate 502 drives the piston 505 in the high-pressure piston cylinder 504 to slide through the piston rod 506. The hydraulic damping effect of the high-pressure gas in the high-pressure piston cylinder 504 is used to dissipate the impact kinetic energy and achieve buffering and energy absorption.

[0038] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0039] Step 1: First, pre-install the structure on the construction site. Bolts are passed through the circular holes 102 at the bottom of the main body 106 of the fixed pile to securely install the entire fixed pile mechanism 1 at the predetermined position on the road surface. The end post mounting hole 7 at the top of the end post 6 is then fitted onto the hollow cylindrical tube 104 at the top of the installed fixed pile mechanism 1. Next, the column assembly stage begins. The intermediate cylinder mechanism 2 is pressed vertically downwards, causing its lower hollow cylinder 202 to insert into the hollow cylindrical tube 104 of the fixed pile. During this process, the elastic protruding buckles 201 on the hollow cylinder 202 are squeezed inwards by the inner wall of the hollow cylindrical tube 104 until they align with the square hole 101. At this point, the elastic protruding buckles 201, under their own elasticity, quickly pop outwards and engage with the square hole 101, thus achieving the connection between the intermediate cylinder mechanism 2 and the main body 106 of the fixed pile. After initial axial locking, the inner core assembly 4 is inserted downwards along the inner cavity of the hollow cylinder 202. After the inner core cylinder 403 is inserted, it can abut against the elastic protruding buckle 201 from the inside to prevent it from accidentally retracting, thereby enhancing the reliability of the initial locking. Then, the final locking operation is performed, which drives the entire inner core assembly 4 to rotate synchronously. During the rotation, the limiting protrusion hemisphere 401 set at the top of the inner core locking block 402 slides into the pre-set hemispherical groove 103 at the top of the inner cavity of the fixed pile body 106, producing a clear sense of positioning and achieving circumferential locking. At the same time, the inner core locking block 402 itself rotates to the bottom of the fixed pile baffle 105. Due to the obstruction of the baffle, the inner core assembly is locked axially and cannot be pulled out directly. Thus, through the three consecutive actions of pressing down, inserting, and rotating, the quick and firm installation of the column is completed.

[0040] Step 2: Connect the buffer mechanism 5 to the end post 6 to form a continuous protective interface. When the steel wire rope 507 is impacted, the impact force is transmitted through the steel wire rope 507 to the end post 6 and acts on the buffer mechanism 5 inside it. The impact force pushes the steel wire rope 507 between two adjacent end posts 6 to stretch outward. Under the action of the fixed pulley 501, the force of the steel wire rope 507 stretching outward will be transmitted to the movable pulley 503, thereby pulling the movable pulley 503 and the telescopic plate 502 forward. The telescopic plate 502 moves forward, driving the piston rod 506 to drive the piston 505 in the high-pressure piston cylinder 504 to move forward along the inner cavity of the high-pressure piston cylinder 504. Since the inner cavity of the high-pressure piston cylinder 504 is filled with high-pressure gas, energy is consumed through hydraulic damping, thereby greatly improving the buffer energy absorption efficiency.

[0041] Step 3: During disassembly, simply rotate the inner core cylinder 403 90 degrees in the opposite direction to disengage the limiting protruding hemisphere 401 from the hemisphere groove 103. At the same time, the inner core locking block 402 and the fixing post baffle 105 are misaligned, allowing the inner core assembly 4 to be pulled vertically upward. Then, press the two buttons 8 inward to squeeze the elastic protruding buckle 201, pressing the elastic protruding buckle 201 back into the inner cavity of the hollow cylinder 202. This allows the intermediate cylinder mechanism 2 to be pulled out, achieving rapid separation and recycling of all components.

[0042] This device is not only easy to install and disassemble with excellent buffering performance, but also has good environmental adaptability, economy and reusability. It fundamentally solves the problems of irreversible deformation, difficult maintenance and inconvenient disassembly of traditional rigid guardrails, and provides an efficient, flexible and reliable solution for highway safety protection.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A collision-resistant and buffer-type safety fence, characterized in that, include: Fixed pile mechanism (1); The lower part of the intermediate cylinder mechanism (2) is slidably inserted into the fixed pile mechanism (1) and initially connected; Inner core assembly (4), which is slidably inserted into the inner cavity of intermediate cylinder mechanism (2); End post (6), the top of the end post (6) is provided with an end post mounting hole (7) that runs through from top to bottom, and the end post (6) is sleeved on the outer wall of the fixed pile mechanism (1); Button (8), the button (8) is located at the middle of the rear side of the end post (6); A buffer mechanism (5) is provided on the front side of the end post (6); The buffer mechanism (5) includes: Fixed pulleys (501), the number of fixed pulleys (501) is several, the fixed pulleys (501) are in pairs and divided into several groups, the several groups of fixed pulleys (501) are respectively arranged at equal intervals along the up and down direction on the left and right ends of the front side of the end column (6); Telescopic plates (502), the number of telescopic plates (502) is several, the several telescopic plates (502) are equidistantly and slidably inserted into the middle of the front side of the end post (6) in the vertical direction, the rear end of the telescopic plates (502) can slide out of the rear side of the end post (6), the position of the several telescopic plates (502) corresponds one-to-one with the position of several sets of fixed pulleys (501); A movable pulley (503) is rotatably mounted on the front side of the telescopic plate (502) via a bearing; The steel wire rope (507) is a plurality of steel wire ropes (507), and the plurality of steel wire ropes (507) are respectively attached to the outer walls of a plurality of fixed pulleys (501) and movable pulleys (503); High pressure piston cylinder (504), the number of high pressure piston cylinder (504) is several, the several high pressure piston cylinders (504) are respectively arranged at equal intervals in the vertical direction at the rear middle of the end column (6), and the positions of the several high pressure piston cylinders (504) and the several telescopic plates (502) correspond one to one; Piston (505), which is slidably adapted to be inserted into the rear side of the inner cavity of the high-pressure piston cylinder (504); A piston rod (506) is disposed in the middle of the rear side of the piston (505). The rear end of the piston rod (506) extends slidably out of the rear side of the high-pressure piston cylinder (504). The rear end of the piston rod (506) is disposed in front of the telescopic plate (502).

2. The anti-collision buffer safety fence according to claim 1, characterized in that, The fixed pile mechanism (1) includes a square hole (101), a circular hole (102), a hemispherical groove (103), a hollow cylindrical tube (104), a fixed pile baffle (105), and a fixed pile body (106). Two hollow cylindrical tubes (104) are used, and the two hollow cylindrical tubes (104) are respectively set on the top left and right sides of the fixed pile body (106). A square hole (101) communicating with the inner cavity is opened in the middle of the rear side of each hollow cylindrical tube (104). The end post (6) is sleeved on the outer wall of the two hollow cylindrical tubes (104). The position of the button (8) corresponds to the position of the square hole (101). The bottom left and right sides of the fixed pile body (106) are provided with vertical through holes. The fixed pile body (106) has a circular hole (102). Two hemispherical grooves (103) are equidistantly arranged at the top of the inner cavity of the fixed pile body (106) along the circumference. The two hemispherical grooves (103) are circumferentially distributed around the central hollow cylindrical tube (104). There are several fixed pile baffles (105). Several fixed pile baffles (105) are equidistantly arranged at the top of the inner cavity of the fixed pile body (106) along the circumference. Several fixed pile baffles (105) and the two hemispherical grooves (103) are on the same circumference.

3. The anti-collision buffer safety fence according to claim 2, characterized in that, The intermediate cylinder mechanism (2) includes: The bottom end of the intermediate cylinder body (203) is slidably fitted into the inner cavity of the hollow cylindrical tube (104); Hollow cylinder (202), the number of hollow cylinders (202) is two, the two hollow cylinders (202) are respectively set on the left and right sides of the bottom end of the intermediate cylinder body (203), and the two hollow cylinders (202) are slidably fitted into the inner cavity of two hollow cylindrical tubes (104); An elastic protruding buckle (201) is provided at the rear bottom of the hollow cylinder (202), and the elastic protruding buckle (201) is adapted to be inserted into the inner cavity of the square hole (101) corresponding to its position.

4. The anti-collision buffer safety fence according to claim 3, characterized in that, The inner core assembly (4) includes: The inner core (403) consists of two inner cores (403), which are slidably fitted into the inner cavities of two hollow cylinders (202). Inner core locking block (402), the inner core locking block (402) is disposed at the bottom end of the inner core cylinder (403), and the inner core locking block (402) matches the fixing pile baffle (105); A limiting protruding hemisphere (401) is provided at the top of the inner core locking block (402), and the limiting protruding hemisphere (401) matches the hemisphere groove (103).

5. The anti-collision buffer safety fence according to claim 4, characterized in that, The intermediate cylinder mechanism (2) inserts the bottom hollow cylinder (202) into the hollow cylindrical tube (104) of the fixed pile mechanism (1), and uses the elastic protruding buckle (201) to automatically engage with the square hole (101) to achieve initial axial locking.

6. The anti-collision buffer safety fence according to claim 5, characterized in that, After the inner core assembly (4) is inserted into the hollow cylinder (202), the inner core cylinder (403) abuts against the elastic protruding buckle (201) to prevent retraction. When the inner core assembly (4) is rotated, the limiting protruding hemisphere (401) slides into the hemisphere groove (103) to achieve circumferential locking. The inner core locking block (402) is rotated to the bottom of the fixed pile baffle (105) to form axial interlock.

7. The anti-collision buffer safety fence according to claim 6, characterized in that, When the steel wire cable (507) is subjected to impact and stretching, the impact force is transmitted to the telescopic plate (502) through the pulley group composed of the fixed pulley (501) and the movable pulley (503), driving the telescopic plate (502) to move forward. The telescopic plate (502) drives the piston (505) in the high-pressure piston cylinder (504) to slide through the piston rod (506). The hydraulic damping effect of the high-pressure gas in the high-pressure piston cylinder (504) is used to dissipate the impact kinetic energy and achieve buffering and energy absorption.

8. The anti-collision buffer safety fence according to claim 7, characterized in that, Reflective stickers (3) are provided on the outer wall of the fixed pile body (106) and the top of the outer wall of the intermediate cylinder body (203).

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