Sealing device for water taking and draining box culvert

Abstract

The utility model relates to the technical field of drainage box culverts, and discloses a water taking and drainage box culvert sealing device and a telescopic sealing ring installed on a box culvert section, a butt joint sealing groove is formed in the end face of one end of the box culvert section, a containing sealing groove is formed in the end face of the other end of the box culvert section, and the telescopic sealing ring is arranged on the inner wall of the containing sealing groove. According to the water taking and draining box culvert sealing device, by arranging the butt-joint sealing grooves, the containing sealing grooves and the telescopic sealing rings, when all box culvert sections are installed, the telescopic sealing rings are folded and buried in the containing sealing grooves in the head ends of the box culvert sections, after all the box culvert sections are installed in place, grouting is conducted in the containing sealing grooves, the sealing rings stretch out and are ejected out due to the fact that the size of an air bag is increased, and therefore the sealing effect is achieved. The box culvert is contracted and buried in the installation process to avoid collision and damage, the requirement that the box culvert is stretched and pushed out to achieve extrusion sealing after installation is completed is met, and installation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage box culverts, in particular to a drainage box culvert sealing device. Background Art

[0002] A box culvert refers to a culvert whose body is constructed with reinforced concrete box-shaped pipe sections. Its main functions include drainage and passage. It is used for drainage and passage, especially when it is necessary to cross rivers, ditches or other obstacles. The assembled prefabricated concrete box culvert can be constructed quickly and is suitable for engineering projects that require a short construction period. Prefabricated concrete box culverts are a common form of drainage tunnels in power plants such as thermal power plants and nuclear power plants. The nodes between box culvert sections are sealed with fixed rubber sealing rings.

[0003] Since the rubber sealing ring is fixed and exposed, it is often damaged due to collision and shearing of the box culvert section during construction, or misaligned due to insufficient foundation flatness and insufficient installation and positioning accuracy of the box culvert section, resulting in sealing failure, which in turn causes water leakage, sand leakage or foundation safety problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a sealing device for an intake and drainage box culvert, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: a drainage box culvert sealing device, comprising: a telescopic sealing ring installed on a box culvert section, wherein the end surface of one end of the box culvert section is provided with a butt-joint sealing groove, the end surface of the other end of the box culvert section is provided with an accommodating sealing groove, and the telescopic sealing ring is arranged on the inner wall of the accommodating sealing groove, and the surface of the telescopic sealing ring is connected to the inner wall of the butt-joint sealing groove of the adjacent box culvert section;

[0006] Two air valves are respectively provided on the surface of the telescopic sealing ring, and two through holes are respectively provided on the surface of the box culvert section, and the through holes are connected with the accommodating sealing ring, and the two air valves respectively pass through the two through holes and extend to the outside of the box culvert section.

[0007] Preferably, the telescopic sealing ring includes a rubber water-stop ring belt, a rubber folding ring belt and a rubber fixed ring belt, wherein the rubber water-stop ring belt, the rubber folding ring belt and the rubber fixed ring belt are all located inside the accommodating sealing groove, the rubber water-stop ring belt is connected to one end of the rubber folding ring belt, and the rubber fixed ring belt is connected to the other end of the rubber folding ring belt;

[0008] A first annular cavity is provided inside the rubber folding annular belt, a second annular cavity is provided inside the rubber fixing annular belt, and the first annular cavity is communicated with the second annular cavity.

[0009] Preferably, the two valve nozzles are both connected to the surface of the rubber fixing ring belt, and the inner cavity of the valve nozzle is communicated with the second ring cavity.

[0010] Preferably, the surface of the rubber fixing ring belt is fixedly connected to the inner wall of the accommodation sealing groove.

[0011] Preferably, the cross-section of the rubber fixing ring belt is semi-circular, trapezoidal or rectangular.

[0012] Preferably, the cross-section of the docking sealing groove is semi-circular, trapezoidal or rectangular.

[0013] Preferably, the culvert segment includes a culvert top plate, a culvert bottom plate and two culvert side plates. The culvert top plate, the culvert bottom plate and the two culvert side plates enclose a culvert segment with a rectangular cross-section. One through hole is arranged on the culvert top plate, and the other through hole is arranged on the culvert side plate.

[0014] Preferably, the cross-section of the culvert segment is circular, and one through hole is arranged at the top end of the culvert segment, and the other through hole is arranged on the side of the culvert segment.

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] For the water intake and drainage culvert sealing device, by arranging the docking sealing groove, the accommodation sealing groove and the telescopic sealing ring, when each culvert segment is installed, the telescopic sealing ring is folded and buried in the accommodation sealing groove at the head end of the culvert segment. After all the culvert segments are installed in place, grout is poured into the accommodation sealing groove, and the sealing ring is stretched and pushed out due to the increase in the volume of the airbag, so as to be embedded, extruded and filled into the docking sealing groove at the tail end of the adjacent culvert segment, achieving the purpose of water stop. During the installation process of the culvert, it shrinks and buries to avoid collision damage, meets the requirement of stretching and pushing out after the culvert installation is completed to realize extrusion sealing, and is convenient for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the telescopic sealing ring of the present utility model in a folded state;

[0018] Figure 2 is a schematic structural diagram of the telescopic sealing ring of the present utility model in an unfolded state;

[0019] Figure 3 is a schematic side view structural diagram of the present utility model;

[0020] Figure 4 is a schematic structural diagram of the culvert segment with a rectangular cross-section of the present utility model;

[0021] Figure 5 is a schematic structural diagram of the culvert segment with a circular cross-section of the present utility model.

[0022] In the figure: 1. Box culvert section; 101. Box culvert top plate; 102. Box culvert bottom plate; 103. Box culvert side plate; 2. Telescopic sealing ring; 21. Rubber water stop ring belt; 22. Rubber folding ring belt; 23. Rubber fixing ring belt; 24. First ring cavity; 25. Second ring cavity; 3. Docking sealing groove; 4. Accommodating sealing groove; 5. Valve nozzle; 6. Through hole. Detailed implementation mode

[0023] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-5 , a water intake and drainage box culvert sealing device, comprising: a telescopic sealing ring 2 installed on the box culvert section 1, a docking sealing groove 3 is opened on the end face of one end of the box culvert section 1, an accommodating sealing groove 4 is opened on the end face of the other end of the box culvert section 1, and the telescopic sealing ring 2 is arranged on the inner wall of the accommodating sealing groove 4, and the surface of the telescopic sealing ring 2 is connected to the inner wall of the docking sealing groove 3 of the adjacent box culvert section 1;

[0025] Two valve nozzles 5 are respectively arranged on the surface of the telescopic sealing ring 2, two through holes 6 are respectively arranged on the surface of the box culvert section 1, and the through holes 6 are communicated with the accommodating sealing ring, and the two valve nozzles 5 respectively pass through the two through holes 6 and extend to the outside of the box culvert section 1.

[0026] The telescopic sealing ring 2 includes a rubber water stop ring belt 21, a rubber folding ring belt 22 and a rubber fixing ring belt 23. The rubber water stop ring belt 21, the rubber folding ring belt 22 and the rubber fixing ring belt 23 are all located inside the accommodating sealing groove 4. The rubber water stop ring belt 21 is connected to one end of the rubber folding ring belt 22, the rubber fixing ring belt 23 is connected to the other end of the rubber folding ring belt 22. A first ring cavity 24 is arranged inside the rubber folding ring belt 22, a second ring cavity 25 is arranged inside the rubber fixing ring belt 23, and the first ring cavity 24 is communicated with the second ring cavity 25. The two valve nozzles 5 are both connected to the surface of the rubber fixing ring belt 23, and the inner cavity of the valve nozzle 5 is communicated with the second ring cavity 25. The surface of the rubber fixing ring belt 23 is fixedly connected to the inner wall of the accommodating sealing groove 4.

[0027] The cross-section of the rubber fixing ring belt 23 is semicircular, trapezoidal or rectangular.

[0028] Among them; the cross-section of the docking sealing groove 3 is semicircular, trapezoidal or rectangular.

[0029] In a specific embodiment, please refer to Figure 4, the culvert section 1 includes a culvert top plate 101, a culvert bottom plate 102 and two culvert side plates 103. The culvert top plate 101, the culvert bottom plate 102 and the two culvert side plates 103 enclose to form a culvert section 1 with a rectangular cross-section. One through hole 6 is arranged on the culvert top plate 101, and the other through hole 6 is arranged on the culvert side plate 103.

[0030] In a specific embodiment, please refer to Figure 5 , the cross-section of the culvert section 1 is circular, and one through hole 6 is arranged at the top end of the culvert section 1, and the other through hole 6 is arranged on the side of the culvert section 1.

[0031] The butt joint sealing groove 3, the accommodation sealing groove 4 and the telescopic sealing ring 2. When each culvert section 1 is installed, the telescopic sealing ring 2 is folded and buried in the accommodation sealing groove 4 at the head end of the culvert section 1. After all the culvert sections 1 are installed in place, grout is poured into the accommodation sealing groove 4. The sealing ring is stretched and pushed out due to the increase in the volume of the airbag, so as to be embedded, extruded and filled in the butt joint sealing groove 3 at the tail end of the adjacent culvert section 1 to achieve the purpose of water stop. During the installation process of the culvert, it shrinks and buries to avoid collision damage, and meets the requirement that it stretches and pushes out after the culvert installation is completed to realize extrusion sealing, which is convenient for installation.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing device for intake and drainage culverts, characterized in that, Including: A telescopic sealing ring (2) installed on the culvert section (1). A butt joint sealing groove (3) is formed on the end face of one end of the culvert section (1), and a receiving sealing groove (4) is formed on the end face of the other end of the culvert section (1). The telescopic sealing ring (2) is arranged on the inner wall of the receiving sealing groove (4), and the surface of the telescopic sealing ring (2) is connected to the inner wall of the butt joint sealing groove (3) of the adjacent culvert section (1). Two valve nozzles (5) are respectively arranged on the surface of the telescopic sealing ring (2), and two through holes (6) are respectively arranged on the surface of the culvert section (1). The through holes (6) are communicated with the receiving sealing ring, and the two valve nozzles (5) respectively extend to the outside of the culvert section (1) through the two through holes (6).

2. The sealing device for the intake and drainage culvert according to claim 1, wherein, The telescopic sealing ring (2) includes a rubber water stop ring belt (21), a rubber folding ring belt (22) and a rubber fixing ring belt (23). The rubber water stop ring belt (21), the rubber folding ring belt (22) and the rubber fixing ring belt (23) are all located inside the receiving sealing groove (4). The rubber water stop ring belt (21) is connected to one end of the rubber folding ring belt (22), and the rubber fixing ring belt (23) is connected to the other end of the rubber folding ring belt (22). A first ring cavity (24) is arranged inside the rubber folding ring belt (22), and a second ring cavity (25) is arranged inside the rubber fixing ring belt (23). The first ring cavity (24) is communicated with the second ring cavity (25).

3. The sealing device for the intake and drainage culvert according to claim 2, characterized in that, The two valve nozzles (5) are both connected to the surface of the rubber fixing ring belt (23), and the inner cavity of the valve nozzle (5) is communicated with the second ring cavity (25).

4. The sealed device for intake and drainage culvert according to claim 2, wherein, The surface of the rubber fixing ring belt (23) is fixedly connected to the inner wall of the receiving sealing groove (4).

5. The sealed device for intake and drainage culvert according to claim 2, characterized in that, The cross section of the rubber fixing ring belt (23) is semi-circular, trapezoidal or rectangular.

6. The sealed device for the intake and drainage culvert according to claim 1, characterized in that, The cross section of the butt joint sealing groove (3) is semi-circular, trapezoidal or rectangular.

7. The sealing device for the water intake and drainage culvert according to claim 1, characterized in that, The culvert section (1) includes a culvert top plate (101), a culvert bottom plate (102) and two culvert side plates (103). The culvert top plate (101), the culvert bottom plate (102) and the two culvert side plates (103) enclose to form a culvert section (1) with a rectangular cross section. One of the through holes (6) is arranged on the culvert top plate (101), and the other through hole (6) is arranged on the culvert side plate (103).

8. The sealing device for the intake and drainage culvert according to claim 1, characterized in that, The cross section of the culvert section (1) is circular, and one of the through holes (6) is arranged at the top of the culvert section (1), and the other through hole (6) is arranged on the side of the culvert section (1).

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