Bridge deck concrete layer crack grouting nozzle structure

Abstract

The utility model discloses a bridge floor concrete layer crack grouting nozzle structure, which belongs to the technical field of bridge floor crack grouting equipment and comprises a bridge floor, and a bridge floor concrete layer crack area is polished and cleaned to form a polishing layer. The middle area of the polishing layer is sealed through concrete, a plurality of grouting bases distributed at intervals in the crack trend are embedded in the middle area of the polishing layer, a grouting pipe is inserted into the outer side of each grouting base, a grouting nozzle is arranged at the front end of each grouting pipe, and an upper mounting ring and a lower mounting ring are fixedly arranged on a pipe body of each grouting pipe in a sleeving mode; and the upper mounting ring and the lower mounting ring are supported by a plurality of ejector rods. According to the crack grouting nozzle structure, the alignment degree of the grouting nozzles and the grouting base can be improved, overflow of grouting materials is reduced, meanwhile, when the grouting materials are cured, all the grouting nozzles on one crack are limited, the curing quality is guaranteed, and the repairing effect of the bridge deck concrete layer crack is improved on the whole.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge deck crack grouting equipment, and more specifically to a bridge deck concrete layer crack grouting nozzle structure. Background Art

[0002] Bridges are an important part of transportation, carrying the weight of vehicles and pedestrians. However, during the use of bridges, cracks often occur, which not only affects the service life of the bridge, but also poses a threat to driving safety. In order to solve the problem of bridge cracks, the existing technology often uses the method of injecting glue into the cracks of bridge concrete or grouting materials for repair. The grouting material is usually a fluid or semi-fluid that can better penetrate into the cracks. It is injected into the cracks and fills all the gaps in the cracks through fluidity, thereby achieving the repair effect. The grouting material has high strength and durability after curing, which can effectively repair bridge cracks and improve the bearing capacity of the bridge.

[0003] In the actual grouting process, it is first necessary to use grinding equipment to grind and clean the crack surface, and then further groove the crack. After the grooving is completed, all grouting bases and crack surfaces are sealed along the crack surface, and then an air pressure sealing test is performed. After the grouting requirements are met, all grouting bases are opened, and low-pressure grouting construction is performed on the crack position of the bridge deck through the grouting nozzle. In the grouting process of the above grouting material, the following problems mainly exist: First, during the grouting process, the grouting nozzle and the grouting base cannot be well aligned, resulting in overflow of grouting material, affecting the grouting quality; second, after the grouting is completed, all grouting nozzles need to stay at the crack position of the bridge deck for a period of time, waiting for the grouting material to solidify. The grouting nozzle is prone to tilt during the stay, affecting the solidification effect of the grouting material. Utility Model Content

[0004] The utility model aims to provide a grouting nozzle structure for cracks in a concrete layer of a bridge deck, which can improve the alignment between the grouting nozzle and the grouting base, reduce the overflow of the grouting material, and at the same time, when the grouting material is solidified, limit all the grouting nozzles on a crack to ensure the solidification quality, thereby improving the overall effect of repairing cracks in the concrete layer of the bridge deck.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A bridge deck concrete layer crack grouting nozzle structure comprises a bridge deck, wherein the crack area of ​​the bridge deck concrete layer is polished and cleaned to form a polished layer, the middle area of ​​the polished layer is sealed by concrete and a plurality of grouting bases are buried and distributed at intervals along the crack direction, wherein a grouting pipe is inserted into the outer side of each grouting base, a grouting nozzle is arranged at the front end of the grouting pipe, an upper mounting ring and a lower mounting ring are fixedly sleeved on the pipe body of the grouting pipe, the upper mounting ring and the lower mounting ring are supported by a plurality of top rods, a plurality of through holes are processed on the surface of the lower mounting ring and an alignment rod passes through the inside of each through hole, and the outer ends of the alignment rods are connected to triangular holders.

[0007] As a further optimization of the solution of the present application, the center of the triangular holder is hollowed out and the hollow area is mounted on the grouting base, a locking nut is provided on the side of the triangular holder, and the through holes and the top rods are staggered in the vertical plane.

[0008] As a further optimization of the solution of the present application, a circular clamping plate is fixed on the periphery of the upper mounting ring, wherein telescopic limit rods are provided between the clamping plates of adjacent grouting pipes, a locking button is provided on the side of the non-telescopic section of the telescopic limit rod, and concave sockets are fixed at both ends of the telescopic limit rod, and the concave sockets are respectively clamped onto the clamping plates on the corresponding sides.

[0009] As a further optimization of the solution of the present application, telescopic limit rods are provided between adjacent grouting pipes in the grouting pipes.

[0010] As a further optimization of the solution of the present application, the triangular holder is fixed to the grouting base by a locking nut on the side, and the telescopic limit rod is adjusted in telescopic length by a locking button so that the telescopic limit rod is pressed against the grouting pipes on both sides.

[0011] As a further optimization of the solution of the present application, clamping plates are provided at the upper and lower ends of the inner side surface of the concave clamping seat, and a compression spring is provided between the clamping plate and the inner side surface of the concave clamping seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] In the utility model, by arranging structures such as an alignment rod, a lower mounting ring and a triangular clamping seat, a plurality of annularly distributed alignment rods are aligned and passed through the through hole, so that the alignment degree between the grouting nozzle and the grouting base can be improved, and the overflow of the grouting material can be reduced;

[0014] The utility model is provided with structures such as an upper mounting ring, a clamping plate and a telescopic limiting rod. The clamping plates of adjacent grouting pipes are clamped by a concave clamping seat. When the grouting material is solidified, all grouting nozzles on a crack are limited to ensure the solidification quality. Overall, the crack repair effect of the bridge deck concrete layer is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the installation structure of the grouting nozzle of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the upper mounting ring and the lower mounting ring of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure of the telescopic limit rod of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the concave card holder of the utility model;

[0019] In the figure: 1. Bridge deck; 2. Polishing layer; 3. Concrete; 4. Grouting pipe; 5. Grouting base; 6. Triangular holder; 7. Locking nut; 8. Alignment rod; 9. Lower mounting ring; 10. Upper mounting ring; 11. Push rod; 12. Clamping plate; 13. Concave holder; 14. Telescopic limit rod; 15. Locking button; 16. Clamp; 17. Compression spring. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific diagrams.

[0021] In order to solve the problem that the grouting nozzle and the grouting base cannot be well aligned in the existing grouting process, resulting in grouting material overflow, such as Figure 1 and Figure 2 As shown, the present application includes a bridge deck 1, the crack area of ​​the concrete layer of the bridge deck 1 is polished and cleaned to form a polished layer 2, the middle area of ​​the polished layer 2 is sealed by concrete 3 and a plurality of grouting bases 5 are buried along the crack direction, wherein a grouting pipe 4 is inserted into the outer side of each grouting base 5, a grouting nozzle is provided at the front end of the grouting pipe 4, an upper mounting ring 10 and a lower mounting ring 9 are fixedly sleeved on the pipe body of the grouting pipe 4, the upper mounting ring 10 and the lower mounting ring 9 are supported by a plurality of push rods 11, a plurality of through holes are processed on the surface of the lower mounting ring 9 and an alignment rod 8 is passed through the inside of each through hole, the outer ends of the alignment rods 8 are connected to a triangular holder 6, the center of the triangular holder 6 is hollowed out and the hollow area is sleeved on the grouting base 5, a locking nut 7 is provided on the side of the triangular holder 6, and the through holes and the push rods 11 are staggered in the vertical plane;

[0022] Specifically, when the grouting nozzle of the grouting pipe 4 is inserted into the grouting base 5, all the alignment rods 8 are inserted into the through holes of the lower mounting ring 9 to achieve precise upper and lower alignment.

[0023] In order to solve the problem that the grouting nozzle is prone to tilt when waiting for the grouting material to solidify, which affects the solidification effect of the grouting material, Figure 3and Figure 4 As shown, a circular clamping plate 12 is fixed to the periphery of the mounting ring 10 of the present application, wherein a telescopic limit rod 14 is provided between the clamping plates 12 of adjacent grouting pipes 4, a locking button 15 is provided on the side of the non-telescopic section of the telescopic limit rod 14, and a concave clamping seat 13 is fixed to both ends of the telescopic limit rod 14, and the concave clamping seat 13 is respectively clamped to the clamping plate 12 on the corresponding side, and a clamping plate 16 is provided at the upper and lower ends of the inner side surface of the concave clamping seat 13, and a compression spring 17 is provided between the clamping plate 16 and the inner side surface of the concave clamping seat 13;

[0024] Specifically, the clamping plate 16 is compressed inwardly by the compression spring 17, so that the concave clamping seat 13 is clamped on the clamping plates 12 on both sides, thereby limiting the adjacent grouting pipes 4 to ensure the stability of the grouting pipes 4 during the curing process of the grouting material, and overall improving the crack repair effect of the bridge deck concrete layer.

[0025] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A bridge deck concrete layer crack grouting nozzle structure, comprising a bridge deck, wherein the crack area of ​​the bridge deck concrete layer is polished and cleaned to form a polished layer, the middle area of ​​the polished layer is sealed by concrete and a plurality of grouting bases are buried at intervals along the crack direction, wherein a grouting pipe is inserted into the outer side of each grouting base, and the characteristics are: A grouting nozzle is provided at the front end of the grouting pipe, and an upper mounting ring and a lower mounting ring are fixedly sleeved on the body of the grouting pipe. The upper mounting ring and the lower mounting ring are supported by a plurality of top rods. A plurality of through holes are processed on the surface of the lower mounting ring, and an alignment rod passes through each through hole. The outer ends of the alignment rods are connected to the triangular socket.

2. A bridge deck concrete crack grouting nozzle structure according to claim 1, characterized in that: The center of the triangular holder is hollowed out and the hollowed-out area is mounted on the grouting base. A locking nut is arranged on the side of the triangular holder. The through holes and the top rods are staggered in the vertical plane.

3. A bridge deck concrete crack grouting nozzle structure according to claim 2, characterized in that: A circular clamping plate is fixed on the outer periphery of the upper mounting ring, wherein telescopic limit rods are provided between the clamping plates of adjacent grouting pipes, a locking button is provided on the side of the non-telescopic section of the telescopic limit rod, and concave sockets are fixed at both ends of the telescopic limit rod, and the concave sockets are respectively clamped onto the clamping plates on the corresponding sides.

4. A bridge deck concrete crack grouting nozzle structure according to claim 3, characterized in that: A telescopic limiting rod is arranged between adjacent grouting pipes in the grouting pipe.

5. A bridge deck concrete crack grouting nozzle structure according to claim 4, characterized in that: The triangular clamping seat is fixed on the grouting base through the locking nut on the side, and the telescopic limit rod is adjusted to a telescopic length through a locking button so that the telescopic limit rod presses against the grouting pipes on both sides.

6. A bridge deck concrete crack grouting nozzle structure according to claim 5, characterized in that: The upper and lower ends of the inner side surface of the concave card seat are both provided with clamping plates, and a compression spring is provided between the clamping plate and the inner side surface of the concave card seat.

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