Safety guardrail

Abstract

The utility model discloses a safety guardrail which comprises a mounting frame, a vertical plate, an L-shaped guide groove, a long rod bolt and a rubber buffer roller. According to the safety guardrail, a mounting frame is arranged on the outer side of the front portion of the guardrail, a mounting plate is fixedly connected to the middle of the mounting frame, the mounting plate and an elastic frame are fixedly mounted through fixing bolts, L-shaped guide grooves are symmetrically and fixedly connected to the top and the bottom of the mounting frame, and a plurality of vertical plates matched with the L-shaped guide grooves are slidably connected to the inner sides of the L-shaped guide grooves; fixing lugs are fixedly connected to the tops and the bottoms of the vertical plates, rubber buffer rollers are symmetrically arranged between the fixing lugs, long-rod bolts jointly penetrate through the fixing lugs and the rubber buffer rollers, a mounting frame is fixedly mounted on the front side of the elastic frame, the vertical plates are mounted through the mounting frame, and therefore the rubber buffer rollers form a whole on the front side of the guardrail; the gap between the rubber buffer rollers is reduced, the situation that an automobile collides into the gap to cause lateral stress is avoided, and the annular effect is effectively achieved through the elastic frame, the buffer spring and the rubber buffer rollers.

Description

Technical Field

[0001] The utility model relates to the technical field of road protection, in particular to a safety guardrail. Background Art

[0002] Bridge tunnels are mostly used for highways that run through mountains. Bridges run through mountains, so they are called bridge tunnels. Bridge tunnels are located in mountains, and the traffic environment is dark. Traffic accidents that hit the inner wall of the tunnel often occur, causing serious casualties. In order to improve the traffic environment, safety guardrails are installed on the side of the tunnel.

[0003] In the prior art with the publication (announcement) number: CN215329359U, a safety guardrail for a highway bridge tunnel is proposed, wherein a mounting plate is mounted on the side of the tunnel, a support plate is arranged on the mounting plate, an elastic frame is arranged on one side of the support plate, a buffer spring is connected in the elastic frame, a connecting frame is arranged on one side of the elastic frame, a roller is rotatably arranged in the connecting frame, mounting holes are arranged on the four sides of the mounting plate, expansion bolts are inserted in the mounting holes and the expansion bolts are driven into the tunnel ground, and a reinforcing plate is arranged between the support plate and the mounting plate. When the side of the front of the vehicle hits the safety guardrail, the impact of the side of the front of the vehicle is received by the roller, and the roller actually rolls on the side of the front of the vehicle, thereby avoiding greater wear on the front of the vehicle, and through the setting of the buffer spring, the elastic frame is assisted to elastically buffer the lateral impact of the vehicle head, and the vehicle impact force is converted into the bending of the elastic frame and the compression force of the buffer spring, the buffering effect is good, the impact force fed back to the front of the vehicle is effectively weakened, and the protection of the vehicle is great.

[0004] However, in the above-mentioned prior art, as shown in the side view and top view of Figure 9 below, the rollers of the prior art are installed at intervals. When a vehicle collides with the guardrail, the impact from the interval easily causes force on the side of the roller installation position, which cannot play a buffering effect. Therefore, a safety guardrail is proposed to optimize the above-mentioned prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a safety guardrail to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A safety guardrail comprises a symmetrically arranged support rod, the bottom end of the support rod is fixedly connected to a fixing plate, a guardrail is slidably penetrated on the support rod, a threaded rod is symmetrically penetrated through the support rod above and below, a through hole is provided on the support rod for the threaded rod to penetrate, one end of the threaded rod is threadedly connected to a first nut, the other end of the threaded rod is fixedly connected to an elastic frame, a buffer spring is provided on the inner side of the elastic frame, the buffer spring is clamped on the inner sides of both ends of the elastic frame, an installation frame is provided on the front outer side of the guardrail, a mounting plate is fixedly connected to the middle part of the mounting frame, the mounting plate is fixedly installed with the elastic frame by fixing bolts, a through hole is provided on the mounting plate for the fixing bolts to penetrate, and a threaded hole for threaded connection of the fixing bolts is provided on the elastic frame. The top and bottom of the frame are symmetrically fixedly connected with L-shaped guide grooves, and the inner side of the L-shaped guide grooves are slidably connected with multiple vertical plates compatible with them. The top and bottom of the vertical plates are fixedly connected with fixing ears, and rubber buffer rollers are symmetrically arranged between the fixing ears. The rubber buffer rollers can be of overall design or multi-section arrangement. The length of the rubber buffer roller is equal to the spacing between the fixing ears. Long-rod bolts are penetrated through the fixing ears and the rubber buffer rollers. Through holes for the long-rod bolts to penetrate are provided in the middle of the fixing ears and the rubber buffer rollers. The bottom end of the long-rod bolt is threadedly connected with a second nut, and the side walls of the L-shaped guide groove corresponding to the two ends of the vertical plates are threadedly connected with locking bolts, and the L-shaped guide groove is provided with threaded holes for threaded connection of the locking bolts.

[0008] As a further solution of the utility model: the support rod is provided with a slot for the guardrail to pass through, the guardrail is evenly and fixedly connected with vertical bars, pads are fixedly connected at the vertical bars corresponding to the threaded rods, the threaded rods pass through the pads, and the pads and the vertical bars are jointly provided with through holes for the threaded rods to pass through, and the thickness of the pads is equal to the width of the slot.

[0009] As a further solution of the utility model: a fixing hole is opened on the fixing plate, an expansion bolt is arranged at the fixing hole, and a third nut is threadedly connected to the expansion bolt.

[0010] As a further solution of the utility model: two support plates are provided on the rear side of the support rod, the top ends of the support plates are respectively connected to two corresponding threaded rods, the top ends of the support plates are provided with through holes matching the threaded rods, and the bottom ends of the support plates are jointly connected to the corresponding expansion bolts, and the bottom ends of the support plates are provided with through holes matching the expansion bolts.

[0011] As a further solution of the utility model: an accordion cover is provided on the outer side of the buffer spring, and both ends of the accordion cover are fixedly connected to the inner wall of the elastic frame. The accordion cover itself can form telescopic deformation, and can telescope and avoid when the buffer spring is compressed and the elastic frame is elastically deformed. The accordion cover can protect the buffer spring.

[0012] As a further solution of the utility model: connecting holes are opened at equal distances on both sides of the guardrail, a connecting bolt penetrates through the connecting hole on one side, and a fourth nut is threadedly connected to the end of the connecting bolt.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model fixes the installation frame on the front side of the elastic frame, and installs a plurality of vertical plates through the installation frame, so that the rubber buffer roller forms a whole on the front side of the guardrail, reduces the gap of the rubber buffer roller, and avoids the situation where the car hits the gap and causes lateral force. The elastic frame, buffer spring and rubber buffer roller effectively play a ring effect.

[0015] 2. The utility model forms auxiliary support on the rear side of the support rod through two support plates, thereby improving the impact resistance of the guardrail and reducing the possibility of the support rod bending and deforming backward when the guardrail is hit.

[0016] 3. The utility model can assemble and connect two adjacent guardrails through the cooperation between the connecting hole, the connecting bolt and the fourth nut, so that the guardrails are connected as a whole, thereby improving the stability of the guardrails after installation.

[0017] 4. The utility model is assembled through the first component, the second component, the third component, the fourth component, the fifth component and the sixth component. The whole is fixed and installed by a threaded rod, a first nut, a fixing bolt, a locking bolt and an expansion bolt to form a whole. The rubber buffer roller is assembled and fixed by a long rod bolt and a second nut, so that the guardrail can be easily disassembled and replaced for different components and structures, thereby facilitating the repair of damaged guardrails. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the structure of a safety guardrail.

[0019] Figure 2 A cross-sectional view of a safety guardrail.

[0020] Figure 3 This is a diagram showing the first component in a safety guardrail.

[0021] Figure 4 This is a diagram showing the second component in a safety guardrail.

[0022] Figure 5 This is a diagram showing the third component in a safety guardrail.

[0023] Figure 6 This is a diagram showing the fourth component in a safety guardrail.

[0024] Figure 7 This is a diagram showing the fifth component in a safety guardrail.

[0025] Figure 8 This is a diagram showing the sixth component in a safety guardrail.

[0026] Fig. 9 This is a prior art diagram.

[0027] In the figure: 1. support rod; 2. fixing plate; 3. guardrail; 4. threaded rod; 5. first nut; 6. elastic frame; 7. buffer spring; 8. accordion cover; 9. mounting frame; 10. mounting plate; 11. fixing bolt; 12. L-shaped guide groove; 13. vertical plate; 14. fixing ear; 15. rubber buffer roller; 16. long rod bolt; 17. second nut; 18. locking bolt; 19. vertical bar; 20. spacer; 21. expansion bolt; 22. third nut; 23. support plate; 24. connecting hole; 25. connecting bolt; 26. fourth nut. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 8In the embodiment of the utility model, a safety guardrail comprises a symmetrically arranged support rod 1, a fixing plate 2 is fixedly connected to the bottom end of the support rod 1, a guardrail 3 is slidably penetrated on the support rod 1, a threaded rod 4 is symmetrically penetrated through the support rod 1 from top to bottom, a through hole for the threaded rod 4 to penetrate is opened on the support rod 1, a first nut 5 is threadedly connected to one end of the threaded rod 4, an elastic frame 6 is fixedly connected to the other end of the threaded rod 4, a buffer spring 7 is provided on the inner side of the elastic frame 6, and the buffer spring 7 is clamped on the inner sides of both ends of the elastic frame 6, a mounting frame 9 is provided on the front outer side of the guardrail 3, a mounting plate 10 is fixedly connected to the middle part of the mounting frame 9, and the mounting plate 10 is fixedly installed with the elastic frame 6 by fixing bolts 11, a through hole for the fixing bolts 11 to penetrate is opened on the mounting plate 10, and a threaded hole for the fixing bolts 11 to be threadedly connected is provided on the elastic frame 6. 9 is symmetrically fixedly connected with an L-shaped guide groove 12 at the top and bottom, and a plurality of vertical plates 13 adapted thereto are slidably connected to the inner side of the L-shaped guide groove 12, and fixed ears 14 are fixedly connected to the top and bottom of the vertical plates 13, and rubber buffer rollers 15 are symmetrically arranged between the fixed ears 14, and the rubber buffer rollers 15 can be designed as an integral part or can be arranged in multiple sections, and the length of the rubber buffer rollers 15 is equal to the spacing between the fixed ears 14, and a long rod bolt 16 is penetrated through the fixed ears 14 and the rubber buffer rollers 15, and a through hole for the long rod bolt 16 to penetrate is provided in the middle of the fixed ears 14 and the rubber buffer rollers 15, and a second nut 17 is threadedly connected to the bottom end of the long rod bolt 16, and locking bolts 18 are threadedly connected to the two ends of the vertical plates 13 corresponding to the side walls of the L-shaped guide groove 12, and a threaded hole for threading the locking bolt 18 is provided on the L-shaped guide groove 12.

[0030] By fixing the mounting frame 9 on the front side of the elastic frame 6 and installing a plurality of vertical plates 13 through the mounting frame 9, the rubber buffer roller 15 forms a whole on the front side of the guardrail, reducing the gap of the rubber buffer roller 15, and avoiding the situation where the car hits the gap and causes lateral force. The elastic frame 6, the buffer spring 7 and the rubber buffer roller 15 effectively play a ring effect.

[0031] A slot for the guardrail 3 to pass through is provided on the support rod 1, and vertical bars 19 are evenly fixedly connected to the guardrail 3. Pads 20 are fixedly connected to the vertical bars 19 at positions corresponding to the threaded rods 4. The threaded rods 4 pass through the pads 20. A through hole for the threaded rods 4 to pass through is provided on the pads 20 and the vertical bars 19. The thickness of the pads 20 is equal to the width of the slot.

[0032] The fixing plate 2 is provided with a fixing hole, at which an expansion bolt 21 is provided, and a third nut 22 is threadedly connected to the expansion bolt 21 . The fixing plate 2 is fixedly installed to the ground through the expansion bolt 21 and the third nut 22 .

[0033] Two support plates 23 are provided on the rear side of the support rod 1, the top ends of the support plates 23 are respectively connected to two corresponding threaded rods 4, the top ends of the support plates 23 are provided with through holes adapted to the threaded rods 4, and the bottom ends of the support plates 23 are jointly connected to the corresponding expansion bolts 21, and the bottom ends of the support plates 23 are provided with through holes adapted to the expansion bolts 21.

[0034] The two support plates 23 form an auxiliary support at the rear side of the support rod 1, thereby improving the impact resistance of the guardrail and reducing the possibility of the support rod 1 bending backward when the guardrail is hit.

[0035] An accordion cover 8 is provided on the outer side of the buffer spring 7, and both ends of the accordion cover 8 are fixedly connected to the inner wall of the elastic frame 6. The accordion cover 8 itself can form telescopic deformation, and can telescope and avoid when the buffer spring 7 is compressed and the elastic frame 6 is elastically deformed. The accordion cover 8 can protect the buffer spring 7.

[0036] The elastic frame 6 is made of tungsten-vanadium alloy with a thickness of 1.5 cm. The elastic frame 6 itself has good bending recovery ability. The initial bending recovery force of the elastic frame 6 is 400 Newtons. Fixed columns are welded symmetrically inside the elastic frame 6. The left and right ends of the buffer spring 7 are welded to the fixed columns. The buffer spring 7 is a compression-rebound type with an initial compression-rebound force of 300 Newtons. Through the setting of the buffer spring 7, the elastic frame 6 is assisted to elastically buffer the lateral impact of the vehicle head, and the vehicle impact force is converted into the bending of the elastic frame 6 and the compression force of the buffer spring 7, with good buffering effect. The outside of the buffer spring 11 is also provided with an accordion cover 8, which is retractable. The setting of the accordion cover 8 can prevent impurities from entering the gaps between the spring ribs of the buffer spring 7.

[0037] Connection holes 24 are evenly spaced on both sides of the guardrail 3 , and a connection bolt 25 penetrates through one of the connection holes 24 , and a fourth nut 26 is threadedly connected to the end of the connection bolt 25 .

[0038] Through the cooperation between the connecting hole 24, the connecting bolt 25 and the fourth nut 26, two adjacent guardrails 3 can be assembled and connected, so that the guardrails 3 are connected as a whole, thereby improving the stability of the guardrails after installation.

[0039] The support rod 1, the fixing plate 2, the expansion bolt 25 and the fourth nut 26 constitute the first component, the threaded rod 4, the first nut 5, the elastic frame 6, the buffer spring 7, the accordion cover 9 and the fixing bolt 11 constitute the second component, the mounting frame 9, the mounting plate 10, the L-shaped guide groove 12 and the locking bolt 18 constitute the third component, the vertical plate 13, the fixing ear 14, the rubber buffer roller 15, the long rod bolt 16 and the second nut 17 constitute the fourth component, the guardrail 3, the vertical bar 19, the pad 20, the connecting bolt 25 and the fourth nut 26 constitute the fifth component, the two support plates 23 constitute the sixth component, and the two first components, the four second components, the one third component, the five fourth components, the one fifth component and the two sixth components together constitute a guardrail structure.

[0040] The safety guardrail is assembled by a first component, a second component, a third component, a fourth component, a fifth component and a sixth component, and the whole is fixed and installed by a threaded rod, a first nut 5, a fixing bolt 11, a locking bolt 18, and an expansion bolt 21 to form a whole. The rubber buffer roller 15 is assembled and fixed by a long rod bolt 16 and a second nut 17, so that the guardrail can be easily disassembled and replaced for different components and structures, thereby facilitating the repair of damaged guardrails.

[0041] The working principle of the utility model is:

[0042] When in use, first, the support rod 1 is erected on the ground through the fixing plate 2 and the expansion bolt 21, and passes through the guardrail 3. At this time, the corresponding support plate 23 is installed and the third nut 22 is locked. At this time, the threaded rod 4 is locked by the first nut 5, so as to realize the assembly of the first component, the second component, the fifth component and the sixth component. At this time, the connecting bolt 25 passes through the connecting hole 24 on the two adjacent guardrails 3, and is locked by the fourth nut 26 to connect the adjacent guardrails 3 to each other. The mounting frame 9 is installed on the elastic frame 6 through the mounting plate 10 and the fixing bolt 11 to complete the installation of the third component. At this time, the fifth component is combined on the front side of the mounting frame 9 through the cooperation of the vertical plate 13 and the L-shaped guide groove 12, and is locked by the locking bolt 18 to complete the installation of the fourth component and the combination of the guardrail.

[0043] When impacting, the rubber buffer roller 15 forms a buffering and steering guiding effect, and the elastic frame 6 and the buffer spring 7 form an elastic buffering effect, thereby reducing the impact degree.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety guardrail, comprising symmetrically arranged support rods (1), characterized in that: The bottom end of the support rod (1) is fixedly connected to a fixing plate (2), a guardrail (3) is slidably passed through the support rod (1), a threaded rod (4) is symmetrically passed through the support rod (1) from top to bottom, one end of the threaded rod (4) is threadedly connected to a first nut (5), the other end of the threaded rod (4) is fixedly connected to an elastic frame (6), a buffer spring (7) is provided on the inner side of the elastic frame (6), a mounting frame (9) is provided on the outer side in front of the guardrail (3), a mounting plate (10) is fixedly connected to the middle part of the mounting frame (9), the mounting plate (10) is fixedly installed with the elastic frame (6) by means of fixing bolts (11), and the mounting frame (9) is fixedly connected to the elastic frame (6) by means of fixing bolts (11). The top and bottom of (9) are symmetrically fixedly connected with L-shaped guide grooves (12), the inner side of the L-shaped guide grooves (12) are slidably connected with a plurality of vertical plates (13) adapted thereto, the top and bottom of the vertical plates (13) are fixedly connected with fixing ears (14), rubber buffer rollers (15) are symmetrically arranged between the fixing ears (14), a long rod bolt (16) is passed through the fixing ears (14) and the rubber buffer roller (15), the bottom end of the long rod bolt (16) is threadedly connected with a second nut (17), and the side walls of the L-shaped guide groove (12) corresponding to the two ends of the vertical plates (13) are threadedly connected with locking bolts (18).

2. A safety guardrail according to claim 1, characterized in that: The support rod (1) is provided with a slot for the guardrail (3) to pass through, the guardrail (3) is evenly and fixedly connected with vertical bars (19), the vertical bars (19) are fixedly connected with cushion blocks (20) at locations corresponding to the threaded rods (4), and the threaded rods (4) pass through the cushion blocks (20).

3. A safety guardrail according to claim 1, characterized in that: The fixing plate (2) is provided with a fixing hole, an expansion bolt (21) is provided at the fixing hole, and a third nut (22) is threadedly connected to the expansion bolt (21).

4. A safety guardrail according to claim 3, characterized in that: Two support plates (23) are provided on the rear side of the support rod (1), the top ends of the support plates (23) are respectively connected to two corresponding threaded rods (4), and the bottom ends of the support plates (23) are commonly connected to corresponding expansion bolts (21).

5. A safety guardrail according to claim 1, characterized in that: The outer side of the buffer spring (7) is sleeved with an accordion cover (8), and the two ends of the accordion cover (8) are fixedly connected to the inner wall of the elastic frame (6).

6. A safety guardrail according to claim 1, characterized in that: Connection holes (24) are evenly spaced on both sides of the guardrail (3), a connection bolt (25) passes through one of the connection holes (24), and a fourth nut (26) is threadedly connected to the end of the connection bolt (25).

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