Protective device of concrete anti-collision guardrail

Abstract

The invention discloses a protective device of a concrete anti-collision guardrail, and relates to the field of civil construction protection, the protective device comprises an old anti-collision wall protective structure, a new anti-collision wall protective structure, a half-wrapping protective plate and a full-wrapping protective plate, the old anti-collision wall protective structure is laid on a bridge floor, and the new anti-collision wall protective structure is laid on the bridge floor; expansion nuts are symmetrically pre-embedded in the surfaces of the old anti-collision wall protection structure and the new anti-collision wall protection structure, half-wrapped protection plates are laid on the old anti-collision wall protection structure and the new anti-collision wall protection structure, positioning grooves are symmetrically formed in the upper surfaces of the half-wrapped protection plates, hemispherical head bolts are arranged in the positioning grooves, and the hemispherical head bolts are matched with the expansion nuts; according to the device, a half-wrapped protective plate and a full-wrapped protective plate are still in the shape of a new anti-collision wall protective structure, a binding face is customized, the half-wrapped protective plate is screwed into an expansion nut embedded in the surface of an anti-collision wall through a semi-spherical-head bolt to achieve preliminary fixation, the semi-wrapped protective plate is tightly attached to the anti-collision wall through a leveling gasket or a keel, and the semi-spherical-head bolt is sleeved with a Z-shaped hanging lug through mounting grooves in the two sides; the limiting groove is matched with the limiting groove in one side of the full-wrapping protection plate to realize connection.

Description

Technical Field

[0001] The present invention relates to the field of civil engineering construction protection, and specifically to a protection device for a concrete anti-collision guardrail. Background Art

[0002] In modern traffic infrastructure, as an important facility to ensure road safety, concrete anti-collision guardrails are widely used in highway bridges, urban roads, and viaduct bridge sections. Its main function is to block vehicles from rushing out of the road when a vehicle accidentally deviates from its driving route, reduce the severity of traffic accidents, and protect the safety of vehicles and passengers. With the increasing traffic flow and the continuous increase in vehicle driving speed, the frequency and impact force of traffic accidents have also increased accordingly, posing higher requirements for the protection performance of concrete anti-collision guardrails. However, there are many problems in the actual use of existing concrete anti-collision guardrails; Its surface is easily damaged by vehicle collisions, natural environment erosion, etc., resulting in a decline in protection performance, high maintenance costs, and a cumbersome process. Once an ordinary concrete anti-collision guardrail is damaged by impact, a large area needs to be demolished and re-poured during repair, consuming a large amount of manpower, material resources, and time. Moreover, existing protection measures have defects in terms of installation convenience and comprehensiveness of protection effect. Some protection devices are complex to install, require professional construction teams and a large number of tools, and it is difficult to provide unified and effective protection for new and old concrete anti-collision guardrails, unable to meet the diverse needs of different usage scenarios. Therefore, technicians in this field have provided a protection device for concrete anti-collision guardrails to solve the problems raised in the above background art. Summary of the Invention

[0003] The purpose of the present invention is to provide a protection device for a concrete anti-collision guardrail to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A protection device for a concrete anti-collision guardrail includes an old anti-collision wall protection structure, a new anti-collision wall protection structure, a semi-enclosing plate, and a bridge deck. The old anti-collision wall protection structure is laid on the bridge deck, and the new anti-collision wall protection structure is laid on one side of the old anti-collision wall protection structure. A preset groove is opened on the bridge deck on one side of the new anti-collision wall protection structure. Expansion nuts are symmetrically embedded on the surfaces of the old anti-collision wall protection structure and the new anti-collision wall protection structure. Semi-enclosing plates are laid on both the old anti-collision wall protection structure and the new anti-collision wall protection structure. Positioning grooves are symmetrically opened on the upper surface of the semi-enclosing plate, and hemispherical head bolts are arranged in the positioning grooves. The hemispherical head bolts cooperate with the expansion nuts.

[0005] As a further solution of the present invention: One side of the semi-enclosing plate close to the preset groove is provided with embedded parts. The semi-enclosing plate is detachably provided with hanging ears on the hemispherical head bolts. The hanging ears are in a Z-shaped structure, and installation grooves are opened on both sides of the hanging ears. The hemispherical head bolts are all located in the installation grooves.

[0006] As a further solution of the present invention: the semi-guard plate is detachably provided with a full-guard plate through hanging ears. Limit grooves are symmetrically opened on one side of the full-guard plate close to the semi-guard plate, and the hanging ears cooperate with the limit grooves.

[0007] As a further solution of the present invention: black and yellow warning strips are coated on the semi-guard plate, and the semi-guard plate and the full-guard plate are made of galvanized sheets. The semi-guard plate and the full-guard plate can also be replaced with materials such as rubber or resin that have good flexibility and impact resistance.

[0008] As a further solution of the present invention: a rubber gasket is provided at the splicing position between the two groups of semi-guard plates, and weather-resistant glue is filled on the side close to the bridge deck of the old anti-collision wall protection structure and the new anti-collision wall protection structure. The weather-resistant glue is used to seal the semi-guard plate.

[0009] As a further solution of the present invention: the area covered by the full-guard plate is not less than 80% of the surface areas of the old anti-collision wall protection structure and the new anti-collision wall protection structure.

[0010] As a further solution of the present invention: a leveling gasket is detachably provided on the hemispherical head bolt between the semi-guard plate and the expansion nut, and the leveling gasket can be replaced with a keel. The semi-guard plate cooperates with the old anti-collision wall protection structure and the new anti-collision wall protection structure through the keel.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The fitting surfaces of both the semi-guard plate and the full-guard plate are customized according to the shapes of the old anti-collision wall protection structure and the new anti-collision wall protection structure. The old anti-collision wall protection structure is laid on the bridge deck to provide initial anti-collision protection for passing vehicles. A new anti-collision wall protection structure is added on one side of the old anti-collision wall protection structure to further enhance the anti-collision ability. A preset groove is opened on the bridge deck on one side of the new anti-collision wall protection structure, which can optimize the connection stability between the new anti-collision wall protection structure and the bridge deck to a certain extent. Expansion nuts are embedded on the surfaces of the old anti-collision wall protection structure and the new anti-collision wall protection structure. Hemispherical head bolts are placed in the positioning grooves on the semi-guard plate, and the hemispherical head bolts are screwed into the expansion nuts to achieve the initial fixation of the semi-guard plate to the old and new anti-collision wall protection structures. Since the surfaces of the old and new anti-collision wall protection structures may be uneven, a leveling gasket or a keel can be installed on the hemispherical head bolt between the semi-guard plate and the expansion nut to ensure that the surface of the semi-guard plate is flat after installation and closely fits the anti-collision wall, enhancing the overall protection effect; 2. The hanging ears are in a Z-shaped structure, with mounting grooves opened on both sides thereof. The hemispherical head bolts are located within the mounting grooves, enabling the hanging ears to be detachably mounted on the hemispherical head bolts on the semi-encasing plate, which facilitates the later maintenance and replacement of the hanging ears or related components. On the side of the full-encasing plate close to the semi-encasing plate, limiting grooves are symmetrically opened. The hanging ears cooperate with the limiting grooves. When installing the full-encasing plate, align the hanging ears with the limiting grooves and insert them to achieve the connection between the full-encasing plate and the semi-encasing plate. The Z-shaped hanging ears not only provide mounting support points for the full-encasing plate but also limit the displacement of the full-encasing plate to a certain extent, enhancing the overall structural stability of the protection device; 3. A rubber gasket is provided at the splicing joint between the two groups of semi-encasing plates. The rubber gasket has good elasticity and sealing performance. When installing the semi-encasing plates, there will be splicing gaps between adjacent plates. The rubber gasket can fill these gaps to prevent rainwater, dust, sundries, etc. from entering the interior of the plates and contacting the anti-collision wall. Especially in rainy days, it can effectively prevent rainwater from seeping in along the gaps, avoiding the long-term erosion of the anti-collision wall by rainwater and reducing its strength, thus ensuring the durability of the anti-collision wall. Weather-resistant glue is filled on the side of both the old anti-collision wall protection structure and the new anti-collision wall protection structure close to the bridge deck. The weather-resistant glue has excellent weather aging resistance and can adapt to various harsh natural environments. It seals the semi-encasing plates, forming a tight sealing layer at the joints between the plates and the anti-collision wall and the bridge deck, preventing external moisture and corrosive substances from invading from this part and corroding the bottom of the anti-collision wall, and enhancing the tightness of the connection between the plates and the anti-collision wall and the bridge deck, improving the overall structural stability of the protection device.

[0012] 4. The area covered by the full-encasing plate is not less than 80% of the surface areas of the old anti-collision wall protection structure and the new anti-collision wall protection structure. The large-area coverage can provide more comprehensive protection for the anti-collision wall. The full-encasing plate can reduce the area of the anti-collision wall directly exposed to the external environment, reduce the erosion effect of natural environmental factors such as ultraviolet rays and acid rain on the anti-collision wall, further extend the service life of the anti-collision wall, and ensure that the protection device can stably perform the protection function for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the protection device for a concrete anti-collision guardrail.

[0014] Figure 2 It is a schematic diagram of the cooperation between the semi-encasing plate and the full-encasing plate in the protection device for a concrete anti-collision guardrail.

[0015] Figure 3 It is a schematic diagram of the cooperation between the old anti-collision wall protection structure and the semi-encasing plate in the protection device for a concrete anti-collision guardrail.

[0016] Figure 4 It is a schematic diagram of the cooperation between the new anti-collision wall protection structure and the full-encasing plate in the protection device for a concrete anti-collision guardrail.

[0017] Figure 5 It is a schematic diagram of the cooperation between the keel and the leveling gasket in the protection device of the concrete anti-collision guardrail.

[0018] In the figure: 1. Protection structure of the old anti-collision wall; 2. Protection structure of the new anti-collision wall; 3. Semi-enclosing plate; 4. Hemispherical head bolt; 5. Bridge deck; 6. Hanging ear; 7. Positioning groove; 8. Preset groove; 9. Full-enclosing plate; 10. Limiting groove; 11. Expansion nut; 12. Installation groove; 13. Leveling gasket; 14. Embedded part; 15. Keel. Specific implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1

[0021] Referring to Figures 1 - 5 , this embodiment provides a protection device for a concrete anti-collision guardrail, including a protection structure 1 of the old anti-collision wall, a protection structure 2 of the new anti-collision wall, a semi-enclosing plate 3 and a bridge deck 5. The protection structure 1 of the old anti-collision wall is laid on the bridge deck 5, and the protection structure 2 of the new anti-collision wall is laid on one side of the protection structure 1 of the old anti-collision wall. A preset groove 8 is opened on the bridge deck 5 on one side of the protection structure 2 of the new anti-collision wall. Expansion nuts 11 are symmetrically embedded on the surfaces of the protection structure 1 of the old anti-collision wall and the protection structure 2 of the new anti-collision wall. Semi-enclosing plates 3 are laid on both the protection structure 1 of the old anti-collision wall and the protection structure 2 of the new anti-collision wall. Positioning grooves 7 are symmetrically opened on the upper surface of the semi-enclosing plate 3, and hemispherical head bolts 4 are arranged in the positioning grooves 7. The hemispherical head bolts 4 cooperate with the expansion nuts 11; Specifically in this embodiment, an embedded part 14 is provided on one side of the semi-enclosing plate 3 close to the preset groove 8. A hanging ear 6 is detachably arranged on the hemispherical head bolt 4 of the semi-enclosing plate 3. The hanging ear 6 has a Z-shaped structure, and installation grooves 12 are opened on both sides of the hanging ear 6. The hemispherical head bolts 4 are all located in the installation grooves 12; The semi-enclosing plate 3 is detachably provided with a full-enclosing plate 9 through the hanging ear 6. Limiting grooves 10 are symmetrically opened on one side of the full-enclosing plate 9 close to the semi-enclosing plate 3. The hanging ear 6 cooperates with the limiting grooves 10; A leveling gasket 13 is detachably arranged on the hemispherical head bolt 4 between the semi-enclosing plate 3 and the expansion nut 11, and the leveling gasket 13 can be replaced by a keel 15. The semi-enclosing plate 3 cooperates with the protection structure 1 of the old anti-collision wall and the protection structure 2 of the new anti-collision wall through the keel 15; Both the semi - enclosed guard plate 3 and the fully - enclosed guard plate 9 are customized with fitting surfaces according to the shapes of the old anti - collision wall protection structure 1 and the new anti - collision wall protection structure 2. The old anti - collision wall protection structure 1 is laid on the bridge deck 5 to provide initial anti - collision protection for passing vehicles. The new anti - collision wall protection structure 2 is added on one side of the old anti - collision wall protection structure 1 to further strengthen the anti - collision ability. A preset groove 8 is opened on the bridge deck 5 on one side of the new anti - collision wall protection structure 2, which can optimize the connection stability between the new anti - collision wall protection structure 2 and the bridge deck 5 to a certain extent. Expansion nuts 11 are embedded on the surfaces of the old anti - collision wall protection structure 1 and the new anti - collision wall protection structure 2. Hemisphere - head bolts 4 are placed in the positioning grooves 7 on the semi - enclosed guard plate 3, and the hemisphere - head bolts 4 are screwed into the expansion nuts 11 to achieve the initial fixation of the semi - enclosed guard plate 3 to the old and new anti - collision wall protection structures. Since the surfaces of the old and new anti - collision wall protection structures may be uneven, shim washers 13 or keels 15 can be installed on the hemisphere - head bolts 4 between the semi - enclosed guard plate 3 and the expansion nuts 11 to ensure that the surface of the semi - enclosed guard plate 3 is flat after installation, closely fitting to the anti - collision wall, and enhancing the overall protection effect; The hanging ears 6 are of a Z - shaped structure, with mounting grooves 12 opened on both sides. The hemisphere - head bolts 4 are located in the mounting grooves 12, enabling the hanging ears 6 to be detachably mounted on the hemisphere - head bolts 4 on the semi - enclosed guard plate 3, which is convenient for the later maintenance and replacement of the hanging ears 6 or related components. Symmetrically - opened limiting grooves 10 are provided on the side of the fully - enclosed guard plate 9 close to the semi - enclosed guard plate 3. The hanging ears 6 cooperate with the limiting grooves 10. When installing the fully - enclosed guard plate 9, the hanging ears 6 are aligned with the limiting grooves 10 and inserted to achieve the connection between the fully - enclosed guard plate 9 and the semi - enclosed guard plate 3. The Z - shaped hanging ears 6 not only provide an installation support point for the fully - enclosed guard plate 9 but also limit the displacement of the fully - enclosed guard plate 9 to a certain extent, enhancing the structural stability of the overall protection device.

[0022] Embodiment 2

[0023] Refer to Figures 1 - 5 , this embodiment is based on the previous embodiment. The difference from the previous embodiment is that black - and - yellow warning strips are coated on the semi - enclosed guard plate 3, and the semi - enclosed guard plate 3 and the fully - enclosed guard plate 9 are made of galvanized steel sheets. Also, the semi - enclosed guard plate 3 and the fully - enclosed guard plate 9 can be replaced with materials such as rubber or resin that have good flexibility and impact resistance; A rubber gasket is provided at the splicing joint between the two groups of semi - enclosed guard plates 3, and weather - resistant glue is filled on the sides of the old anti - collision wall protection structure 1 and the new anti - collision wall protection structure 2 close to the bridge deck 5. The weather - resistant glue is used to seal the semi - enclosed guard plate 3; The area covered by the fully - enclosed guard plate 9 is not less than 80% of the surface areas of the old anti - collision wall protection structure 1 and the new anti - collision wall protection structure 2; A rubber sealing pad is arranged at the joint between the two groups of half-wrapped guard plates 3. The rubber sealing pad has good elasticity and sealing performance. When installing the half-wrapped guard plates 3, there will be splicing gaps between adjacent guard plates. The rubber sealing pad can fill these gaps to prevent rainwater, dust, debris, etc. from entering the interior of the guard plates and contacting the crash wall. Especially on rainy days, it can effectively prevent rainwater from seeping through the gaps, avoid the crash wall from being eroded by rainwater for a long time and reducing its strength, and ensure the durability of the crash wall. The old crash wall protection structure 1 and the new crash wall protection structure 2 are both filled with weather-resistant glue on one side close to the bridge deck 5. The weather-resistant glue has excellent weather aging resistance and can adapt to various harsh natural environments. The half-wrapped guard plates 3 are sealed to form a tight sealing layer at the junction of the guard plates, the crash wall and the bridge deck, to prevent external moisture and corrosive substances from invading from this part and corroding the bottom of the crash wall, and to enhance the tightness of the connection between the guard plates, the crash wall and the bridge deck, thereby improving the structural stability of the entire protective device. The area covered by the full-coverage protective plate 9 is not less than 80% of the surface area of ​​the old crash wall protection structure 1 and the new crash wall protection structure 2. The large-area coverage can provide more comprehensive protection for the crash wall. The full-coverage protective plate 9 can reduce the area of ​​the crash wall directly exposed to the external environment, reduce the erosion of the crash wall by natural environmental factors such as ultraviolet rays, acid rain, etc., further extend the service life of the crash wall, and ensure that the protective device can perform its protective function stably for a long time.

[0024] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. The protective device of the concrete anti-collision guardrail is characterized in that: The invention comprises an old crash wall protection structure (1), a new crash wall protection structure (2), a half-enclosed guard plate (3) and a bridge deck (5), wherein the old crash wall protection structure (1) is laid on the bridge deck (5), and the new crash wall protection structure (2) is laid on one side of the old crash wall protection structure (1), a preset groove (8) is opened on the bridge deck (5) on one side of the new crash wall protection structure (2), expansion nuts (11) are symmetrically pre-embedded on the surfaces of the old crash wall protection structure (1) and the new crash wall protection structure (2), the half-enclosed guard plate (3) is laid on the old crash wall protection structure (1) and the new crash wall protection structure (2), positioning grooves (7) are symmetrically opened on the upper surface of the half-enclosed guard plate (3), and hemispherical head bolts (4) are arranged in the positioning grooves (7), and the hemispherical head bolts (4) and the expansion nuts (11) cooperate with each other.

2. The protective device of the concrete anti-collision guardrail according to claim 1 is characterized in that: The half-enclosed guard plate (3) is provided with an embedded part (14) on one side close to the preset groove (8). The half-enclosed guard plate (3) is detachably provided with a hanging ear (6) on the hemispherical head bolt (4). The hanging ear (6) is in a Z-shaped structure. Both sides of the hanging ear (6) are provided with mounting grooves (12). The hemispherical head bolts (4) are located in the mounting grooves (12).

3. The protective device of the concrete anti-collision guardrail according to claim 2 is characterized in that: The half-enclosed guard plate (3) is detachably provided with a full-enclosed guard plate (9) via a hanging ear (6); a limiting groove (10) is symmetrically provided on one side of the full-enclosed guard plate (9) close to the half-enclosed guard plate (3); the hanging ear (6) and the limiting groove (10) cooperate with each other.

4. The protective device of the concrete anti-collision guardrail according to claim 3 is characterized in that: The half-wrapped guard plate (3) is coated with a black and yellow warning strip, and the half-wrapped guard plate (3) and the full-wrapped guard plate (9) are made of galvanized sheet, and the half-wrapped guard plate (3) and the full-wrapped guard plate (9) can also be replaced by materials with good flexibility and impact resistance such as rubber or plastic.

5. The protective device of the concrete anti-collision guardrail according to claim 4 is characterized in that: A rubber sealing pad is provided at the joint between the two groups of half-enclosed guard plates (3), and the sides of the old crash wall protection structure (1) and the new crash wall protection structure (2) close to the bridge deck (5) are filled with weather-resistant glue, which is used to seal the half-enclosed guard plates (3).

6. The protective device of the concrete anti-collision guardrail according to claim 5 is characterized in that: The area covered by the all-inclusive protective plate (9) is not less than 80% of the surface area of ​​the old crash wall protection structure (1) and the new crash wall protection structure (2).

7. The protective device of the concrete anti-collision guardrail according to claim 5, characterized in that: A detachable leveling gasket (13) is provided on the hemispherical head bolt (4) between the half-enclosed guard plate (3) and the expansion nut (11), and the leveling gasket (13) can be replaced by a keel (15). The half-enclosed guard plate (3) cooperates with the old crash wall protection structure (1) and the new crash wall protection structure (2) via the keel (15).

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