A precast concrete guardrail with a perforated anchor structure

Abstract

The present invention discloses a precast concrete guardrail with a perforated anchoring structure, which relates to the technical field of bridge engineering, including a bridge deck, on the top of which a plurality of connecting anchor rods extending upward are equidistantly installed, and a guardrail assembly is installed on the top of the connecting anchor rods. When the concrete guardrail body is hoisted, the I-shaped sealing plate is pulled out of the first I-shaped groove, and after the I-shaped steel bar is placed so that all guardrails cannot be displaced forward and backward independently, the I-shaped sealing plate is flipped up and down so that the lifting ring faces downward. At this time, the I-shaped sealing plate is displaced from the concrete guardrail body, and cooperates with the I-shaped steel bar to not only connect adjacent concrete guardrails, but also the lifting ring will squeeze and fix the I-shaped steel bar to improve stability. At the same time, the lifting ring will be hidden inside the avoidance groove. This ingenious design makes the surface of the assembled concrete guardrail no longer have exposed lifting rings, thereby improving the overall aesthetics of the concrete guardrail.

Description

Technical Field

[0001] The invention relates to the technical field of bridge engineering, and in particular to a precast concrete guardrail with a perforated anchoring structure. Background Art

[0002] In bridge construction, guardrails need to be installed on both sides of the bridge to prevent pedestrians and vehicles from falling from both sides of the bridge. Concrete guardrails have good strength and durability and are used for protection on various bridges and roads. However, the construction time of concrete guardrails is long. Therefore, pouring concrete into a specific mold, vibrating the concrete to make it dense to form a guardrail prefabricated product, and then directly installing it on the bridge deck can save a lot of construction time. This is also the commonly used concrete guardrail construction method.

[0003] In the prior art, such as Chinese patent publication No. CN116876338A, a vertical double-stacked assembled anti-collision guardrail and an installation method thereof are disclosed, wherein the assembled anti-collision guardrail includes an anti-collision guardrail and a bridge deck prefabricated with concrete and a cast-in-place block; the anti-collision guardrail is provided with a casting trough, 1# embedded steel bars, anti-collision guardrail structural steel bars, a grouting port, an exhaust port, a guide bar groove, a lifting ring one and a lifting ring two; the bridge deck is provided with 2# embedded steel bars, 3# embedded steel bars and block structural steel bars; after assembly, the bottom surface of the anti-collision guardrail is placed on the bridge deck, the top end of the 2# embedded steel bars is extended into the guide bar groove for positioning, the 2# embedded steel bars and the 3# embedded steel bars are respectively overlapped with the corresponding 1# embedded steel bars to form a double-stacked anchoring structure, the casting trough and the guide bar groove are filled with concrete, the block is cast-in-place on the bridge deck at the position of the block structural steel bars and is fitted to the lower part of the back surface of the anti-collision guardrail. The invention has stable connection and anti-collision effects, is convenient for lifting, positioning and assembly, and has high installation efficiency.

[0004] Although the concrete guardrail in the above patent is easy to hoist, position and assemble, and has high installation efficiency, the precast concrete guardrail in the prior art solves the problem of long construction period caused by on-site pouring of concrete guardrails. However, because it needs to be hoisted, it is necessary to connect lifting rings on the precast concrete guardrail, which also leads to a large number of lifting rings on the assembled guardrail, affecting the overall aesthetics of the concrete guardrail. Secondly, during the assembly process of the precast concrete guardrail, a large number of steel bars are required to be connected and fixed to the bridge deck to ensure the firmness of the guardrail assembly. During the assembly process, a certain amount of concrete covering the steel bar connector is still required to be poured, which prolongs the construction period. In addition, although the precast concrete guardrail has high strength and durability, the surface of the concrete guardrail is prone to cracking when exposed to the sun in hot weather. Not only does it need to be watered by a sprinkler vehicle for watering and maintenance, but the maintenance water sprinkled on the surface of the concrete guardrail will evaporate quickly under high temperature conditions, and the maintenance frequency needs to be increased, which directly leads to high maintenance costs.

[0005] Therefore, a precast concrete guardrail with a perforated anchoring structure is proposed to solve the problems raised in the above background technology. Summary of the invention

[0006] The object of the present invention is to provide a precast concrete guardrail with a perforated anchoring structure to solve the problems raised by the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a precast concrete guardrail with a perforated anchoring structure, comprising a guardrail assembly, the guardrail assembly comprising a concrete guardrail body and an I-shaped sealing plate, a bottom wall of the concrete guardrail body is provided with a perforated groove, the perforated groove is used for the insertion of a connecting anchor rod on the bridge deck, a slot is provided on the outer surface of one side of the concrete guardrail body, a plug strip is fixedly connected to the outer surface of the other side opposite to the concrete guardrail body, a first I-shaped groove is provided on the top of the concrete guardrail body, the first I-shaped groove is vertically arranged, and a plurality of lifting rings are fixedly connected to the top of the I-shaped sealing plate at equal intervals; an avoidance groove is provided at the bottom of the first I-shaped groove, the depth of the avoidance groove is consistent with the height of the lifting ring, and the I-shaped sealing plate can be plugged into the first I-shaped groove so that the lifting ring is located above the I-shaped sealing plate or in the avoidance groove.

[0008] Preferably, the guardrail assembly also includes an I-beam bar, the length of the I-beam bar is greater than the length of the concrete guardrail body, a second I-beam groove is provided at the inner bottom of the avoidance groove, the second I-beam groove is arranged horizontally, the I-beam bar can be inserted into the second I-beam groove through the avoidance groove, and when the lifting ring is located in the avoidance groove, the lifting ring can abut against the I-beam bar.

[0009] Preferably, the precast concrete guardrail also includes a connecting component and a reinforcement component. A mounting groove is provided on the rear surface of the concrete guardrail body near the bottom. The perforated groove is provided at the inner bottom of the mounting groove and passes through the bottom wall of the concrete guardrail body. The connecting component is arranged in the mounting groove and is used to be connected to the connecting anchor rod. The reinforcement component is installed on the back of the guardrail component and is connected to the connecting component.

[0010] Preferably, the connecting assembly includes a connecting shell and a nut, the connecting shell is installed in the mounting groove, the rear surface of the connecting shell is provided with a plurality of rectangular openings, the front surface of the connecting shell is provided with a plurality of L-shaped openings corresponding to the positions of the rectangular openings, the position of each L-shaped opening corresponds to the position of a connecting anchor rod, the connecting shell is inserted into the interior of the mounting groove so that the connecting anchor rod enters into the connecting shell through the L-shaped opening, and the nut is threadedly connected to the connecting anchor rod through the rectangular opening.

[0011] Preferably, a plurality of riveted plates are fixedly connected to the bottom of the connecting shell, each of the riveted plates is correspondingly arranged at each of the rectangular openings, a first ratchet ring is fixedly connected to the upper surface of the riveted plates, and a second ratchet ring is fixedly connected to the bottom of the nut, the second ratchet ring and the first ratchet ring can be unidirectionally meshed, and the locking direction of the nut and the connecting anchor is consistent with the meshing direction of the first ratchet ring and the second ratchet ring.

[0012] Preferably, the reinforcement component includes a supporting back plate, and a plurality of mounting openings are equidistantly penetrated through the front surface of the supporting back plate near the bottom, and each of the mounting openings is provided with a pair of symmetrically movable buckles, which can be engaged in the rectangular opening.

[0013] Preferably, a connecting rod is rotatably connected to the inner part of the support back plate near the bottom, and a reinforcing rib is fixedly connected to the outer surface of the support back plate. The outer surface of the connecting rod is equidistantly provided with multiple groups of bidirectional threads, and each pair of the clips is correspondingly sleeved on a group of bidirectional threads of the connecting rod. When the connecting rod is rotated forward or reversely, each pair of the clips can be driven to move toward or away from each other.

[0014] Preferably, a plurality of microporous grooves are provided inside the concrete guardrail body, the microporous grooves are in an N-shape, the microporous groove paths are close to the front and rear outer surfaces of the concrete guardrail body, a water inlet connected to the microporous grooves is provided above the concrete guardrail body, and a water outlet connected to the microporous grooves is provided below the concrete guardrail body; a water inlet groove is provided near the top of the outer surface of the support back plate, the water inlet groove and the water inlet position correspond to each other, and an overflow groove is provided on the outer surface of the support back plate above the mounting port, the overflow groove and the water outlet position correspond to each other.

[0015] Preferably, a water inlet shell is fixedly connected to a position near the top of the rear surface of the supporting back plate, one side of the water inlet shell is provided with an opening connected to the water inlet trough, and an outer surface of one end of the water inlet shell is fixedly connected to a connecting pipe.

[0016] Preferably, a connecting head is fixedly connected to the outer surface of the other end of the water inlet shell, and the connecting head of the precast concrete guardrail can cooperate with the connecting pipe of another adjacent precast concrete guardrail, so that the two adjacent water inlet shells are connected to the connecting pipe through the connecting head.

[0017] By adopting the above technical solution,

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. When the present invention is used, after the concrete guardrail body is hoisted, the I-shaped sealing plate is pulled out of the first I-shaped groove, and after the I-shaped steel bar is put in so that all the guardrails cannot be displaced forward and backward independently, the I-shaped sealing plate is turned upside down so that the lifting ring faces downward. At this time, the I-shaped sealing plate is displaced from the concrete guardrail body, and cooperates with the I-shaped steel bar to not only connect the adjacent concrete guardrails, but also the lifting ring will squeeze and fix the I-shaped steel bar to improve stability. At the same time, the lifting ring will be hidden inside the avoidance groove. This ingenious design makes the surface of the assembled concrete guardrail no longer have exposed lifting rings, thereby improving the overall aesthetics of the concrete guardrail.

[0020] 2. When the present invention is used, the concrete guardrail body is lifted up by connecting the lifting equipment and the lifting ring, and the connecting anchor rod is passed through the perforated groove for positioning. The adjacent guardrails are formed into a whole by the insertion strips and the slots. After that, the I-beam bar is put in, and the I-beam sealing plate is inserted to enhance the connection strength. After the connecting shell is installed, the support back plate is pressed and fixed to further stabilize it. The various components work together to form a complete and solid whole for the concrete guardrail. Combined with the weight of the concrete itself, it can effectively resist external force impact in actual use. At the same time, the whole assembly process is simple, does not require complicated construction equipment, and greatly shortens the construction period.

[0021] 3. When the present invention is used, the connecting rod is rotated with the aid of a tool, and under the action of the bidirectional thread, the buckle is disengaged from the connecting shell, the supporting back plate is removed, the nut is rotated to release the fixation of the connecting shell and remove it, and then the I-shaped sealing plate is pulled out, the I-shaped steel bar is removed, the I-shaped sealing plate is turned over and reinstalled, and the concrete guardrail body is lifted and removed by hooking the lifting ring with a lifting equipment to complete the removal. This demolition method avoids the brutal destruction of the guardrail during the traditional demolition process, the demolition method is simple, and the damage to the concrete guardrail body is small, which is conducive to the reuse of resources.

[0022] 4. When the present invention is used, all water inlet shells are connected by the connection pipe and the connection head, and the side connection pipe is connected to the external water supply pipe. When watering maintenance is required in hot weather, water passes through the external water supply pipe and then the connection pipe to quickly fill the water inlet shell, and enters the microporous groove through the water inlet groove. Since the microporous groove is forked below and close to the front and rear side surfaces of the concrete guardrail, the water flows slowly downward and can be fully absorbed by the concrete, achieving a maintenance effect. This maintenance method abandons the operation of traditional sprinkler trucks, avoids the waste of water resources, and does not require the purchase, operation and labor costs of vehicles, thereby greatly reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a precast concrete guardrail with a perforated anchoring structure according to the present invention;

[0024] Figure 2 A three-dimensional view from another angle of a precast concrete guardrail with a perforated anchoring structure according to the present invention;

[0025] Figure 3 An expanded view of a precast concrete guardrail with a perforated anchoring structure according to the present invention;

[0026] Figure 4 A cross-sectional view of a guardrail assembly of a precast concrete guardrail with a perforated anchoring structure according to the present invention;

[0027] Figure 5 This is a state diagram of a lifting ring of a precast concrete guardrail with a perforated anchoring structure according to the present invention;

[0028] Figure 6 This is another state diagram of a lifting ring of a precast concrete guardrail with a perforated anchoring structure according to the present invention;

[0029] Figure 7 A top view of a concrete guardrail body of a precast concrete guardrail with a perforated anchoring structure according to the present invention;

[0030] Figure 8 A schematic diagram of a connection assembly of a precast concrete guardrail with a perforated anchoring structure according to the present invention;

[0031] Fig. 9 A schematic diagram of a connection assembly of a precast concrete guardrail with a perforated anchoring structure according to the present invention from another angle;

[0032] Fig.10 It is a schematic diagram of the second ratchet ring structure of a precast concrete guardrail with a perforated anchoring structure according to the present invention;

[0033] Fig.11 A three-dimensional diagram of a reinforcement component of a precast concrete guardrail with a perforated anchoring structure according to the present invention;

[0034] Fig.12 This is an expanded view of a reinforcement component of a precast concrete guardrail with a perforated anchoring structure according to the present invention;

[0035] Fig.13 The present invention is a schematic diagram of a connecting rod structure of a precast concrete guardrail with a perforated anchoring structure.

[0036] In the figure: 1. guardrail assembly; 101. concrete guardrail body; 102. mounting groove; 103. perforated groove; 104. first I-shaped groove; 105. avoidance groove; 106. second I-shaped groove; 107. I-shaped sealing plate; 108. lifting ring; 109. I-shaped steel bar; 110. microporous groove; 111. slot; 112. insert; 2. bridge deck; 21. connecting anchor rod; 3. connecting assembly; 301. connecting shell; 302. L-shaped opening; 303, rectangular opening; 304, first ratchet ring; 305, nut; 306, second ratchet ring; 307, riveting plate; 4, reinforcement assembly; 401, support back plate; 402, overflow groove; 403, installation port; 404, reinforcing rib; 405, water inlet groove; 406, connecting rod; 407, two-way thread; 408, buckle; 409, water inlet shell; 410, connector; 411, connecting pipe. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figure 1-Figure 7 As shown, the present invention provides a technical solution: a precast concrete guardrail with a perforated anchoring structure, comprising a guardrail assembly 1, the guardrail assembly 1 comprising a concrete guardrail body 101 and an I-shaped sealing plate 107, a perforated groove 103 is provided on the bottom wall of the concrete guardrail body 101, the perforated groove 103 is used for the connection anchor rod 21 on the bridge deck 2 to be inserted, a slot 111 is provided on the outer surface of one side of the concrete guardrail body 101, and a plug 112 is fixedly connected to the outer surface of the other side opposite to the concrete guardrail body 101, and the concrete guardrail A first I-shaped groove 104 is provided at the top of the main body 101, and the first I-shaped groove 104 is vertically arranged. A plurality of lifting rings 108 are fixedly connected to the top of the I-shaped sealing plate 107 at equal intervals. An avoidance groove 105 is provided at the bottom of the first I-shaped groove 104, and the depth of the avoidance groove 105 is consistent with the height of the lifting ring 108. The I-shaped sealing plate 107 is pluggable in the first I-shaped groove 104 so that the lifting ring 108 is located above the I-shaped sealing plate 107 or in the avoidance groove 105. The connecting anchor rod 21 is thickened to improve the reliability of the connection.

[0039] Specifically, the guardrail assembly 1 also includes an I-beam 109, the length of which is greater than the length of the concrete guardrail body 101, and a second I-beam 106 is provided at the inner bottom of the avoidance groove 105, and the second I-beam 106 is arranged horizontally. The I-beam 109 can be inserted into the second I-beam 106 through the avoidance groove 105, and when the lifting ring 108 is located in the avoidance groove 105, the lifting ring 108 can abut against the I-beam 109. The slot 111 and the insertion strip 112 can connect adjacent concrete guardrail bodies 101 by plugging and connecting, so that the concrete guardrail bodies 101 cannot move forward and backward independently and be dislocated. The avoidance groove 105 is mainly used to accommodate the lifting ring 108, and the second I-shaped groove 106 is mainly used to accommodate the I-shaped steel bar 109. The actual length of the I-shaped steel bar 109 is greater than the concrete guardrail body 101. After being installed in the second I-shaped groove 106, it is necessary to pay attention to that the two ends need to be in a dislocated state with the side of the concrete guardrail body 101, so that the adjacent concrete guardrail bodies 101 cannot move forward and backward independently and be dislocated, and the strength of the concrete guardrail body 101 after connection is improved.

[0040] See also Figure 2-4 , Figure 8 and Fig. 9 In one embodiment, the precast concrete guardrail further includes a connecting component 3 and a reinforcing component 4. A mounting groove 102 is provided on the rear surface of the concrete guardrail body 101 near the bottom. A perforated groove 103 is provided at the inner bottom of the mounting groove 102 and passes through the bottom wall of the concrete guardrail body 101. The connecting component 3 is arranged in the mounting groove 102 and is used to be connected to the connecting anchor rod 21. The reinforcing component 4 is installed on the back of the guardrail component 1 and connected to the connecting component 3.

[0041] Specifically, the connection assembly 3 includes a connection shell 301 and a nut 305. The connection shell 301 is installed in the installation groove 102. The rear surface of the connection shell 301 is provided with a plurality of rectangular openings 303. The front surface of the connection shell 301 is provided with a plurality of L-shaped openings 302 corresponding to the positions of the rectangular openings 303. The position of each L-shaped opening 302 corresponds to the position of a connection anchor rod 21. The connection shell 301 is inserted into the interior of the installation groove 102 so that the connection anchor rod 21 enters the connection shell 301 through the L-shaped opening 302. The nut 305 is threadedly connected to the connection anchor rod 21 through the rectangular opening 303. The rectangular opening 303 is a reserved opening for the installation of the nut 305. After the nut 305 and the connection anchor rod 21 are connected, they play a role in anchoring and fixing the concrete guardrail body 101 to the bridge deck 2.

[0042] See also Figures 11 to 13In one embodiment, the reinforcement component 4 includes a support back plate 401. A plurality of installation openings 403 are equidistantly provided on the front surface of the support back plate 401 near the bottom. A pair of symmetrically movable buckles 408 are provided in each installation opening 403. The buckles 408 are engaged with the rectangular opening 303. The installation openings 403 and the rectangular opening 303 are overlapped to form a reserved opening for removing the nut 305. The buckle 408 is deformed during the insertion into the rectangular opening 303, thereby forming an engaged connection with the rectangular opening 303. The rectangular opening 303 is a reserved opening for installing the nut 305, and is also used to cooperate with the buckle 408 to connect the connection shell 301 with the support back plate 401.

[0043] Specifically, a connecting rod 406 is rotatably connected to the inner part of the support back plate 401 near the bottom, and a reinforcing rib 404 is fixedly connected to the outer surface of the support back plate 401. A plurality of groups of bidirectional threads 407 are equidistantly arranged on the outer surface of the connecting rod 406, and each pair of buckles 408 is correspondingly sleeved on a group of bidirectional threads 407 of the connecting rod 406. When the connecting rod 406 is rotated forward or reversely, each pair of buckles 408 can be driven to move toward or away from each other. The support back plate 401 is L-shaped and is used to support the concrete guardrail body 101. The reinforcing rib 404 is used to improve the strength of the support back plate 401. The bidirectional threads 407 on the mating surface of the connecting rod 406 enable the two buckles 408 inside each mounting port 403 to approach each other when the connecting rod 406 is rotated, thereby separating from the rectangular opening 303.

[0044] According to the use steps of the present invention, the concrete guardrail and accessories in the device can be prefabricated in advance, and the connecting anchor rod 21 is preset on the top of the bridge deck 2. During assembly, the concrete guardrail body 101 is lifted above the connecting anchor rod 21 by connecting with the lifting equipment and the lifting ring 108, and then the position of the concrete guardrail body 101 is adjusted by manual assistance. As the concrete guardrail body 101 falls onto the bridge deck 2, the connecting anchor rod 21 will pass through the perforated groove 103 and extend into the interior of the installation groove 102, thereby completing the positioning of the concrete guardrail body 101.

[0045] Then, the I-shaped sealing plate 107 is pulled out of the first I-shaped groove 104 by holding the lifting ring 108 in a pulling manner, and then the above-mentioned method is used to complete the lifting and positioning of other concrete guardrail bodies 101 in turn, and during the falling process of adjacent concrete guardrail bodies 101, the surface insertion strips 112 are inserted into the slots 111 on the surface of another concrete guardrail body 101, so as to form a whole. After all the concrete guardrail bodies 101 are lifted, the first I-shaped groove 104, the avoidance groove 105 and the second I-shaped groove 106 at the top will form a connected state, and then the longer I-shaped steel bar 109 is placed from top to bottom into the connected second I-shaped groove 106, so that all the concrete guardrail bodies 101 are in the same straight line and cannot be offset forward and backward independently, and the I-shaped steel bar 109 can effectively improve the connection strength of the concrete guardrail body 101.

[0046] Then, the I-shaped sealing plate 107 is turned upside down so that the lifting ring 108 faces downward, and finally reinserted into the first I-shaped groove 104. The inserted I-shaped sealing plate 107 and the concrete guardrail body 101 are staggered, which plays a role in improving the connection strength of the adjacent concrete guardrail bodies 101, ensuring that the concrete guardrail body 101 cannot be displaced up and down alone, and after the I-shaped sealing plate 107 is inverted, the lifting ring 108 will be hidden inside the avoidance groove 105, so that there is no exposed lifting ring on the assembled concrete guardrail, which improves the overall aesthetics of the concrete guardrail. At the same time, when the lifting ring 108 is facing downward, it will squeeze the I-shaped steel bar 109 downward, so that it is firmly fixed inside the concrete guardrail body 101, which can effectively strengthen the connection strength of the concrete guardrail assembly.

[0047] When the concrete guardrail body 101 is assembled, the connecting shell 301 is installed from front to back in the installation groove 102 on the surface of the adjacent concrete guardrail body 101, which not only supports the installation groove 102, but also prevents the adjacent concrete guardrail bodies 101 from being misaligned up and down. During the installation of the connecting shell 301, the end of the connecting anchor rod 21 on the inner side of the installation groove 102 will enter the interior of the connecting shell 301 through the L-shaped opening 302, and then the nut 305 is passed through the rectangular opening 303 and sent into the interior of the connecting shell 301 to connect with the connecting anchor rod 21, so that the concrete guardrail body 101 and the bridge deck 2 can be firmly fixed.

[0048] Finally, the support back plate 401 is pressed from the back to the front on the rear surface of the concrete guardrail body 101, the bottom of the support back plate 401 will fall on the bridge deck 2, and the front buckle 408 will be engaged with the rectangular opening 303, and then connected to the assembled concrete guardrail as a whole. The installed support back plate 401 can effectively increase the contact area between the concrete guardrail body 101 and the ground, thereby further improving the stability and firmness of the assembled concrete guardrail. After the concrete guardrail is assembled.

[0049] The exposed surfaces of the two concrete guardrail bodies 101 on the most side and the half of the first I-shaped groove 104, the avoidance groove 105 and the second I-shaped groove 106 can be filled and trimmed with concrete materials. The entire assembly process does not require complex construction equipment, and the construction method is simple and fast, which can effectively shorten the construction period. At the same time, the I-shaped sealing plate 107, the I-shaped steel bar 109, and the connecting shell 301 that are installed in a dislocated manner through the slot 111 and the insert 112 can ensure that all the concrete guardrail bodies 101 form a complete and solid whole. At the same time, the setting of the supporting back plate 401 further improves the stability of the concrete guardrail assembly. Combined with the weight of the concrete material, it can effectively ensure the protective effect of the concrete guardrail.

[0050] At the same time, when the concrete guardrail assembly is dismantled, the connecting rod 406 can be rotated by a tool. At this time, under the action of the two-way thread 407 on the surface of the connecting rod 406, the adjacent buckles 408 will approach each other, thereby disengaging from the connecting shell 301, and then directly remove the support back plate 401 backwards; then rotate the nut 305 to separate it from the connecting anchor rod 21 and release the fixation to the connecting shell 301, and then remove the connecting shell 301 backwards, and then pull the I-shaped sealing plate 107 out of the first I-shaped groove 104 by pulling, and then remove the I-shaped steel bar 109 upwards, flip the I-shaped sealing plate 107, and then reinstall it into the first I-shaped groove 104; finally, use the lifting equipment again to hook the lifting ring 108 and lift the concrete guardrail body 101 upwards for removal. The removal method is simple and will not cause significant damage to the concrete guardrail body 101, so that the device can be reused, thereby saving resources.

[0051] Example 2: See Figure 4 , Fig.11 and Fig.12 , the difference between the embodiment and the embodiment is that a plurality of microporous grooves 110 are provided inside the concrete guardrail body 101, and the microporous grooves 110 are in an n-shape. The paths of the microporous grooves 110 are close to the front and rear outer surfaces of the concrete guardrail body 101. The upper part of the concrete guardrail body 101 is provided with a water inlet connected to the microporous grooves 110, and the lower part is provided with a water outlet connected to the microporous grooves 110. The microporous grooves 110 are in an n-shape. For specific shapes, refer to Figure 4 The water inlet at the top allows water to enter the microporous groove 110 from a high place and flow along the path of the microporous groove 110 , and the water outlet at the bottom is used to discharge excess water to avoid water accumulation inside the concrete guardrail body 101 and cause quality degradation.

[0052] Specifically, a water inlet groove 405 is provided on the outer surface of the support back plate 401 near the top, and the water inlet groove 405 corresponds to the water inlet position. An overflow groove 402 is provided on the outer surface of the support back plate 401 above the installation port 403, and the overflow groove 402 corresponds to the water outlet position. The overflow groove 402 is used to avoid the water outlet on the rear side of the microporous groove 110 to prevent water accumulation inside the concrete guardrail body 101. The water inlet groove 405 is mainly used to connect the water inlet of the microporous groove 110 and the water inlet shell 409.

[0053] Furthermore, a water inlet shell 409 is fixedly connected to a position near the top of the rear surface of the supporting back plate 401, an opening communicating with the water inlet trough 405 is provided on one side of the water inlet shell 409, and a connecting pipe 411 is fixedly connected to the outer surface of one end of the water inlet shell 409. Specifically, a connector 410 is fixedly connected to the outer surface of the other end of the water inlet shell 409, and the connector 410 of a precast concrete guardrail can be matched with the connecting pipe 411 of another adjacent precast concrete guardrail, so that the two adjacent water inlet shells 409 are connected to the connecting pipe 411 through the connector 410, and a connector 410 is fixedly connected to the outer surface of the other side of the water inlet shell 409, and the connector 410 and the connecting pipe 411 cooperate. When the concrete guardrail body 101 needs to be watered for maintenance in hot weather, water is supplied to the connecting pipe 411 through an external water supply pipe. Since the inner diameter of the microporous groove 110 of the concrete guardrail body 101 is narrow, water will quickly enter all the water inlet shells 409, and then enter the water inlet above the microporous groove 110 through the water inlet groove 405, and finally flow downward through the path of the microporous groove 110. The microporous groove 110 is forked below and is close to the front and rear side surfaces of the concrete guardrail body 101. Therefore, the water slowly flowing downward in the microporous groove 110 is fully absorbed by the concrete guardrail body 101, which plays a maintenance role.

[0054] The use steps of the present invention are as follows: after the concrete guardrail body 101 is assembled and perforated and anchored, the connecting pipe 411 on one side of the water inlet shell 409 is connected to the connecting head 410 on the surface of the adjacent water inlet shell 409, so that all the water inlet shells 409 are connected through the connecting pipe 411, and the connecting head 410 at the edge is blocked with a plug, and the connecting pipe 411 at the edge is connected to the external water supply pipe. When the concrete guardrail body 101 needs to be watered and maintained in hot weather, water is supplied to the connecting pipe 411 through the external water supply pipe. Since the inner diameter of the microporous groove 110 of the concrete guardrail body 101 is narrow, water will quickly enter all the water inlet shells 409, and then enter the water inlet above the microporous groove 110 through the water inlet groove 405, and finally flow downward through the path of the microporous groove 110. The microporous groove 110 is bifurcated at the bottom and is close to the front and rear surfaces of the concrete guardrail body 101. Therefore, the water slowly flowing downward in the microporous groove 110 is fully absorbed by the concrete guardrail body 101, which plays a maintenance role. The maintenance process not only does not require the use of a sprinkler vehicle, but also does not waste water resources, thereby reducing maintenance costs.

[0055] Embodiment 3: Figures 8 to 10 As shown, the difference between the embodiment and the embodiment is that a plurality of riveted plates 307 are fixedly connected to the bottom of the connection shell 301, each riveted plate 307 is correspondingly arranged at a rectangular opening 303, a first ratchet ring 304 is fixedly connected to the upper surface of the riveted plate 307, a second ratchet ring 306 is fixedly connected to the bottom of the nut 305, the second ratchet ring 306 and the first ratchet ring 304 can be unidirectionally meshed, and the locking direction of the nut 305 and the connection anchor rod 21 is consistent with the meshing direction of the first ratchet ring 304 and the second ratchet ring 306. When the nut 305 is connected to the connection anchor rod 21, as the nut 305 rotates and descends, the second ratchet ring 306 will be unidirectionally meshed with the first ratchet ring 304. Under the action of the first ratchet ring 304 and the second ratchet ring 306, the nut 305 cannot rotate counterclockwise, so that when the concrete guardrail body 101 is used on a bridge, the nut 305 will not flip and loosen due to the vibration of the bridge, which effectively improves the firmness and safety of the concrete guardrail body 101. The riveting plate 307 is fixed inside the connecting shell 301 by rivets and is used to install the first ratchet ring 304. When the nut 305 is rotated counterclockwise after the rivets are removed, the first ratchet ring 304 will rotate synchronously with the second ratchet ring 306, which is used to remove the concrete guardrail body 101.

[0056] The use steps of the present invention are as follows: after the connecting shell 301 is inserted into the installation groove 102, when the nut 305 is used to connect with the connecting anchor rod 21, as the nut 305 rotates and descends, the second ratchet ring 306 at the bottom will be unidirectionally meshed with the first ratchet ring 304. During the initial engagement, the opposing surfaces of the first ratchet ring 304 and the second ratchet ring 306 will be slightly deformed, and the nut 305 cannot be rotated. At this time, the nut 305 cannot be rotated counterclockwise under the action of the first ratchet ring 304 and the second ratchet ring 306, so that when the concrete guardrail body 101 is used on the bridge, the nut 305 will not flip and loosen due to the vibration of the bridge, which effectively improves the firmness and safety of the concrete guardrail body 101. The riveted plate 307 is fixed to the inside of the connecting shell 301 by rivets, and is used to install the first ratchet ring 304. After the rivet is removed, when the nut 305 is rotated counterclockwise, the first ratchet ring 304 will rotate synchronously with the second ratchet ring 306, which is used to dismantle the concrete guardrail body 101.

[0057] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 should be included in the protection scope of the present invention.

Claims

1. A precast concrete guardrail with a perforated anchor structure, characterized in that: The invention comprises a guardrail assembly (1), wherein the guardrail assembly (1) comprises a concrete guardrail body (101) and an I-shaped sealing plate (107); a perforated groove (103) is provided on the bottom wall of the concrete guardrail body (101); the perforated groove (103) is used for passing a connecting anchor rod (21) on a bridge deck (2); a slot (111) is provided on the outer surface of one side of the concrete guardrail body (101); a plug strip (112) is fixedly connected to the outer surface of the other side opposite to the concrete guardrail body (101); and the top of the concrete guardrail body (101) is provided with a slot (111). A first I-shaped groove (104) is provided, the first I-shaped groove (104) is arranged vertically, and a plurality of lifting rings (108) are fixedly connected to the top of the I-shaped sealing plate (107) at equal intervals; an avoidance groove (105) is provided at the bottom of the first I-shaped groove (104), the depth of the avoidance groove (105) is consistent with the height of the lifting ring (108), and the I-shaped sealing plate (107) is pluggably inserted into the first I-shaped groove (104), so that the lifting ring (108) is located above the I-shaped sealing plate (107) or in the avoidance groove (105); The guardrail assembly (1) further comprises an I-beam bar (109), the length of the I-beam bar (109) being greater than the length of the concrete guardrail body (101), a second I-beam groove (106) being provided at the inner bottom of the avoidance groove (105), the second I-beam groove (106) being arranged in a transverse direction, the I-beam bar (109) being insertable into the second I-beam groove (106) through the avoidance groove (105), and when the lifting ring (108) is located in the avoidance groove (105), the lifting ring (108) is able to abut against the I-beam bar (109).

2. The precast concrete guardrail with a perforated anchoring structure according to claim 1 is characterized in that: The precast concrete guardrail further comprises a connecting component (3) and a reinforcing component (4); a mounting groove (102) is provided on the rear surface of the concrete guardrail body (101) near the bottom; the perforated groove (103) is provided on the inner bottom of the mounting groove (102) and penetrates the bottom wall of the concrete guardrail body (101); the connecting component (3) is arranged in the mounting groove (102) and is used to be connected to the connecting anchor rod (21); and the reinforcing component (4) is installed on the back of the guardrail component (1) and is connected to the connecting component (3).

3. The precast concrete guardrail with a perforated anchoring structure according to claim 2 is characterized in that: The connection assembly (3) comprises a connection shell (301) and a nut (305); the connection shell (301) is installed in the installation groove (102); a plurality of rectangular openings (303) are provided on the rear surface of the connection shell (301); a plurality of L-shaped openings (302) corresponding to the positions of the rectangular openings (303) are provided on the front surface of the connection shell (301); the position of each L-shaped opening (302) corresponds to the position of a connection anchor rod (21); the connection shell (301) is inserted into the interior of the installation groove (102) so that the connection anchor rod (21) enters the connection shell (301) through the L-shaped opening (302); and the nut (305) is threadedly connected to the connection anchor rod (21) through the rectangular opening (303).

4. The precast concrete guardrail with a perforated anchoring structure according to claim 3 is characterized in that: A plurality of riveted plates (307) are fixedly connected to the bottom of the connection shell (301), each of the riveted plates (307) being arranged correspondingly at each of the rectangular openings (303), a first ratchet ring (304) being fixedly connected to the upper surface of the riveted plates (307), a second ratchet ring (306) being fixedly connected to the bottom of the nut (305), the second ratchet ring (306) being able to mesh with the first ratchet ring (304) in one direction, and a locking direction of the nut (305) and the connection anchor rod (21) being consistent with a meshing direction of the first ratchet ring (304) and the second ratchet ring (306).

5. The precast concrete guardrail with a perforated anchoring structure according to claim 3 is characterized in that: The reinforcement component (4) comprises a support back plate (401), and a plurality of installation openings (403) are equidistantly provided through the front surface of the support back plate (401) near the bottom, and a pair of symmetrically movable buckles (408) are provided in each of the installation openings (403), and the buckles (408) can be snapped into the rectangular opening (303).

6. The precast concrete guardrail with a perforated anchoring structure according to claim 5, characterized in that: A connecting rod (406) is rotatably connected to a position near the bottom of the support back plate (401), and a reinforcing rib (404) is fixedly connected to the outer surface of the support back plate (401). A plurality of groups of bidirectional threads (407) are equidistantly arranged on the outer surface of the connecting rod (406), and each pair of the buckles (408) is correspondingly sleeved on a group of bidirectional threads (407) of the connecting rod (406). When the connecting rod (406) is rotated forward or reversely, each pair of the buckles (408) can be driven to move toward or away from each other.

7. The precast concrete guardrail with a perforated anchoring structure according to claim 5, characterized in that: A plurality of microporous grooves (110) are provided inside the concrete guardrail body (101), the microporous grooves (110) are in an N-shape, the paths of the microporous grooves (110) are close to the front and rear outer surfaces of the concrete guardrail body (101), a water inlet communicating with the microporous grooves (110) is provided above the concrete guardrail body (101), and a water outlet communicating with the microporous grooves (110) is provided below the concrete guardrail body (101); A water inlet groove (405) is provided on the outer surface of the supporting back plate (401) near the top, and the water inlet groove (405) corresponds to the water inlet. An overflow groove (402) is provided on the outer surface of the supporting back plate (401) above the mounting opening (403), and the overflow groove (402) corresponds to the water outlet.

8. The precast concrete guardrail with a perforated anchoring structure according to claim 7, characterized in that: A water inlet shell (409) is fixedly connected to a position near the top of the rear surface of the supporting back plate (401), one side of the water inlet shell (409) is provided with an opening connected to the water inlet groove (405), and one end of the water inlet shell (409) is fixedly connected to an outer surface with a connecting pipe (411).

9. The precast concrete guardrail with a perforated anchoring structure according to claim 8, characterized in that: A connecting head (410) is fixedly connected to the outer surface of the other end of the water inlet shell (409); the connecting head (410) of the precast concrete guardrail can cooperate with the connecting pipe (411) of another adjacent precast concrete guardrail, so that the two adjacent water inlet shells (409) are connected to the connecting pipe (411) through the connecting head (410).

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