Steel-concrete composite gate

Abstract

The utility model discloses a steel-concrete composite gate which is used for being placed in a gate groove so as to seal a waste end of an old pipeline with water, and is characterized by comprising a steel box gate plate, a steel box gate plate, a steel box gate plate, a steel box gate plate, a steel box gate plate and a steel box gate plate, and the steel box gate plate is of a hollow structure and comprises a front steel box gate plate and a rear steel box gate plate, and the structures and the sizes of the front steel box gate plate and the rear steel box gate plate are consistent; the front steel box gate plate and the rear steel box gate plate are oppositely arranged in an attached mode. The diagonal bracing ribs are arranged in the steel box flashboard and used for enhancing the strength of the steel box flashboard; the pouring preformed hole is formed in the top of the steel box gate plate, and concrete pouring is conducted on the interior of the steel box gate plate through the pouring preformed hole; the rubber water stop strip is arranged on the surface, close to the gate groove, of the steel box gate plate and tightly attached to the gate groove to prevent sewage leakage. The reinforced concrete combined gate is adopted, and waterproof strengthening measures are taken at the boundary, so that the problem that the waste end of the old pipeline is effectively blocked after the new pipeline and the old pipeline are connected with water is solved.

Description

Technical Field

[0001] The utility model relates to the field of blocking abandoned ends of water-carrying pipelines, in particular to a steel-concrete composite gate. Background Art

[0002] The treatment of black and odorous water bodies in urban aquatic environments has been a key task for China in recent years and will likely continue to be in the coming years. As cities expand, the connection between new sewage pipes and existing ones becomes a critical issue in the construction of urban sewage networks. Once the connection between the old and new pipes is complete, the abandoned end of the old pipe must be sealed to completely eliminate the old pipe and prevent sewage from overflowing and polluting the surrounding environment.

[0003] In the process of sealing the abandoned end of the old pipeline, due to the high water flow velocity in the pipe, usually 1-2m / s, conventional precast concrete gates have certain deficiencies and defects in production precision errors, surface flatness, corrosion resistance, etc., and it will be difficult to achieve the ideal sealing effect after being continuously impacted by sewage water.

[0004] Therefore, there is an urgent need to develop a high-performance gate that can withstand water erosion and has a certain anti-corrosion ability for sealing the abandoned end of a water-carrying pipeline. Utility Model Content

[0005] The purpose of this utility model is to provide a steel-concrete composite gate. By adopting a steel-concrete composite gate, that is, adding concrete to the steel box gate and supplementing it with waterproof reinforcement measures at the boundary, the problem of effectively sealing the abandoned end of the old pipeline after the water-carrying connection construction of the new and old pipelines is completed is solved.

[0006] To achieve the above-mentioned purpose, the utility model provides a steel-concrete composite gate for placement in a gate slot to seal the abandoned end of an old pipeline with water, comprising:

[0007] The steel box gate plate has a hollow structure inside and includes a front steel box gate plate and a rear steel box gate plate of the same structure and size; the front steel box gate plate and the rear steel box gate plate are arranged relative to each other;

[0008] Diagonal bracing ribs are provided inside the steel box gate to enhance the strength of the steel box gate;

[0009] A casting reserved hole is provided on the top of the steel box gate plate, and concrete is poured into the interior of the steel box gate plate through the casting reserved hole;

[0010] The rubber water stop strip is arranged on the surface of the steel box gate plate close to the gate groove and fits tightly to the gate groove to prevent sewage leakage.

[0011] Optionally, the front steel box gate plate and the rear steel box gate plate are both shallow box-shaped structures with convex sides and concave inside;

[0012] The two steel box gate plates are welded together at the relative contacting convex parts around them to form a structure with two oppositely arranged side edges, a top wall and a bottom wall and a hollow interior.

[0013] Optionally, a plurality of diagonal bracing ribs are arranged at intervals inside the steel box gate plate; one side of each diagonal bracing rib is welded to the front steel box gate plate, and the other side is welded to the rear steel box gate plate.

[0014] Optionally, the casting reserved holes are set on the top wall of the steel box gate plate, and at least two are set, which are used for pouring concrete into the hollow structure of the steel box gate plate and for drainage and exhaust respectively.

[0015] Optionally, there is a gap between the steel box gate plate and the gate slot, and the gap is 2 mm.

[0016] Optionally, the rubber water stop strips are arranged to cover the two opposite sides of the steel box gate plate, the surface of the front steel box gate plate inserted into the gate groove, and the surface of the rear steel box gate plate inserted into the gate groove, filling the gap between the gate groove and the steel box gate plate and preventing the concrete poured in the steel box gate plate from flowing around through the gap between the two steel box gate plates;

[0017] The rubber water stop strip adopts a P-type rubber water stop strip.

[0018] Optionally, two opposite sides of the steel box gate plate are provided with pouring overflow holes for overflowing part of the concrete poured into the steel box gate plate into the gap between the steel box gate plate and the gate slot, so as to integrally cast the gate slot and the steel box gate plate.

[0019] Optionally, the steel-concrete composite gate further includes lifting rings, which are symmetrically arranged on the top wall of the steel box gate plate so that the lifting equipment can lift the steel box gate plate.

[0020] Optionally, the outer surface of the steel box gate is coated with an anti-corrosion layer, and the anti-corrosion layer comprises a primer and a topcoat;

[0021] The primer is epoxy asphalt paint; the topcoat is diluted epoxy asphalt paint.

[0022] Optionally, angle irons are embedded in the gate slot near the protruding feet of the steel box gate plate to set the verticality of the gate slot.

[0023] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The utility model provides a steel-concrete composite gate. By pouring concrete in the steel box gate and applying an anti-corrosion layer, the overall rigidity and durability of the steel box gate are enhanced, and the gate is also guaranteed to withstand corrosion and resist erosion in an environment of long-term immersion in sewage.

[0025] 2. The utility model provides a steel-concrete composite gate, which effectively blocks the water flow and prevents sewage leakage from affecting the blockage by arranging a rubber water stop strip at the position of the steel box gate plate near the gate groove.

[0026] 3. The steel-concrete composite gate provided by the present invention effectively solves the problem of effectively blocking the abandoned end of the old pipeline after the water connection construction of the new and old pipelines is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a front view of the steel-concrete composite gate of the present invention;

[0028] Figure 2 This is a side view of the steel-concrete composite gate of the present invention;

[0029] Figure 3 This is a top view of the steel-concrete composite gate of the present invention;

[0030] Figure 4 This is a top view of the steel-concrete composite gate of the present invention when it is lowered into the gate slot. DETAILED DESCRIPTION

[0031] The following will be combined with the attached Figures 1 to 4 , the technical content, structural features, achieved objectives and effects of the utility model are described in detail through preferred embodiments.

[0032] It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions. They are only used to conveniently and clearly assist in explaining the implementation methods of the present invention, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0035] The utility model provides a steel-concrete composite gate, which is poured with concrete in the steel box gate and coated with an anti-corrosion layer to enhance its overall rigidity, durability and corrosion resistance; and by placing the steel-concrete composite gate in the gate slot 5, the abandoned end of the old pipeline can be sealed with water. Figures 1 to 4 As shown, the steel-concrete composite gate includes: a steel box gate plate 1, which serves as the main structure of the steel-concrete composite gate; diagonal bracing bars 2, which are arranged inside the steel box gate plate 1 and are used to strengthen the strength of the steel box gate plate 1; a lifting ring 3, which is arranged at the top of the steel box gate plate 1 and is used for lifting the steel box gate plate 1 with lifting equipment; a casting reserved hole 4, which is arranged at the top of the steel box gate plate 1 and is located on the same side of the lifting ring 3, and is used for casting concrete on the steel box gate plate 1 and realizing drainage and exhaust during casting; a rubber water stop strip 7, which is arranged on the surface of the steel box gate plate close to the gate groove 5 and is used to fit tightly against the gate groove 5 to prevent sewage leakage.

[0036] The steel box gate 1 is a hollow structure, comprising two symmetrically arranged front and rear steel box gates 11 and 12, of identical structure and size. Both the front and rear steel box gates 11 and 12 are shallow box-shaped structures with raised edges and a recessed interior. The two steel box gates are welded together at the contacting raised edges, forming a hollow structure with four side walls. Furthermore, the side walls comprise two opposing side edges 111, a top wall 112, and a bottom wall.

[0037] Preferably, the front steel box gate plate 11 and the rear steel box gate plate 12 are both made of 20 mm thick steel plates.

[0038] Specifically, the height H of the two steel box gate plates can be set according to the peak water levels in the upstream and downstream wells, that is, it needs to be higher than the daily water level; the length and width of the two steel box gate plates need to be set according to the width and depth of the gate slot 5.

[0039] In a specific embodiment of the present invention, the heights of the two steel box gates are both 6m.

[0040] The diagonal bracing ribs 2 are arranged in the hollow structure of the steel box gate plate 1, with one side welded to the front steel box gate plate 11 and the other side welded to the rear steel box gate plate 12. The number of the diagonal bracing ribs 2 can be set according to the construction strength requirements, and can be one or more. In the specific embodiment of the present invention, by using three evenly spaced diagonal bracing ribs 2 (located at Figure 1 The dotted line position shown in the figure) strengthens the strength of the steel box gate 1; and the three diagonal bracing bars 2 are all threaded steel bars with a diameter of 28 mm.

[0041] Among them, Figure 3 As shown, the lifting rings 3 are symmetrically arranged on the top wall 112 of the steel box gate plate 1 to facilitate the lifting equipment to lift the steel box gate plate 1 smoothly; preferably, multiple lifting rings 3 can be symmetrically arranged according to the lifting situation.

[0042] In a specific embodiment of the present invention, two suspension rings 3 are symmetrically provided; and each suspension ring 3 is made of a steel bar with a diameter of 28 mm.

[0043] Among them, such as Figure 3 As shown, there are at least two pre-casting holes 4, which are arranged on the top wall 112 of the steel box gate plate 1. In a specific embodiment of the present invention, there are two pre-casting holes 4, one for pouring concrete into the hollow structure of the steel box gate plate 1, and the other for drainage and exhaust during pouring.

[0044] In actual application environment, there is a certain gap between the steel box gate plate 1 and the gate groove 5, and the gap is generally 2mm. Therefore, a rubber water stop strip 7 is provided on the surface of the steel box gate plate 1 to fit the gate groove 5.

[0045] Among them, such as Figure 4 As shown, the rubber water stop strip 7 is a P-type rubber water stop strip commonly used in water conservancy projects. The P-type rubber water stop strip is a flexible sealing material with the characteristics of weather resistance, fatigue resistance, anti-seepage and leakage prevention, corrosion resistance, and easy operation. Figure 4 As shown, since the steel box gate plate 1 is lowered vertically in the top view, and the two ends with side edges 111 need to extend into the gate groove 5, so as to use the steel-concrete composite gate to seal the abandoned end of the old pipeline with water, the P-type rubber water stop strip covers the two opposite side edges 111 set on the steel box gate plate 1, the surface of the front steel box gate plate 11 inserted into the gate groove 5, and the surface of the rear steel box gate plate 12 inserted into the gate groove 5, and is used to fill the gap between the gate groove 5 and the steel box gate plate 1. Due to the high elasticity and compression deformation of rubber, it can produce a certain elastic deformation under various loads, which can play a role in tightening and sealing, and at the same time prevent the concrete poured in the steel box gate plate 1 from flowing out through the gap between the two steel box gate plates. Specifically, each end with side edges 111 is provided with 3 P-type rubber water stop strips.

[0046] After lowering the steel-box gate into the gate slot 5, concrete is poured onto the steel-box gate plate 1 through the pre-cast holes 4, creating the steel-concrete composite gate proposed in this utility model. Specifically, the concrete is underwater self-compacting concrete, exhibiting properties such as underwater non-separation, self-compacting, low water seepage, and slow setting. During pouring, the slump is carefully controlled while the concrete is poured in a single step. By pouring concrete onto the steel-box gate plate 1, its overall rigidity and durability are enhanced, making it resistant to erosion even in long-term sewage immersion.

[0047] Furthermore, both side edges 111 are provided with pouring overflow holes for overflowing part of the concrete poured into the steel box gate plate 1, thereby completely pouring and sealing the gap between the steel box gate plate 1 and the gate slot 5. Specifically, during the concrete pouring process, part of the concrete will flow along the pouring overflow holes on the two side edges 111 into the gap between the gate slot 5 and the steel box gate plate 1, thereby completely sealing the gap and pouring the gate slot 5 and the steel box gate plate 1 together.

[0048] Furthermore, to ensure the corrosion resistance of the steel-concrete composite gate, an anti-corrosion coating is applied to the outer surface of the steel-box gate plate 1 before it is lowered into the gate slot 5. This coating comprises a primer of a high-build epoxy asphalt paint with corrosion resistance and a topcoat of diluted epoxy asphalt paint. The ratio of epoxy asphalt paint to diluent in the topcoat is 1:1.5.

[0049] Specifically, the base surface of the steel-concrete composite gate is first polished to remove dust and debris as well as various stains generated during the assembly and welding process, and then two layers of primer are applied, and finally two layers of topcoat are applied; preferably, in order to make the adhesion between the layers of paint more firm, each layer of paint is applied in a direction perpendicular to each other.

[0050] Further, if Figure 4 As shown, to ensure that the dimensions of the steel-concrete composite gate and the gate slot 5 match, the verticality of the gate slot 5 must also be adjusted. To control the verticality error of the gate slot 5 within 3mm, ensure a tighter fit between the steel-concrete composite gate and the gate slot 5, and achieve a better sealing and water-stopping effect, angle irons 6 must be embedded in the gate slot 5 near the gate's protruding feet when casting the gate slot 5.

[0051] In summary, the steel-concrete composite gate provided by the utility model can better solve the problems of difficult sealing construction and poor sealing quality at the abandoned end of old pipelines in water-carrying conditions, and also avoid the problem of sewage overflow affecting the surrounding environment.

[0052] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be construed as limiting the present invention. After reading the above description, various modifications and alternatives to the present invention will become readily apparent to those skilled in the art. Therefore, the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A steel-concrete composite gate, used to be placed in a gate slot (5) to seal the abandoned end of an old pipeline with water, characterized in that: Include: The steel box gate plate (1) has a hollow structure inside and comprises a front steel box gate plate (11) and a rear steel box gate plate (12) of the same structure and size; the front steel box gate plate (11) and the rear steel box gate plate (12) are arranged in a close relationship with each other; Diagonal bracing ribs (2) are arranged inside the steel box gate plate (1) to strengthen the strength of the steel box gate plate (1); A casting reserved hole (4) is provided on the top of the steel box gate plate (1), and concrete is cast into the interior of the steel box gate plate (1) through the casting reserved hole (4); The rubber water stop strip (7) is arranged on the surface of the steel box gate plate close to the gate groove (5) and is closely attached to the gate groove (5) to prevent sewage leakage.

2. The steel-concrete composite gate according to claim 1, characterized in that: The front steel box gate plate (11) and the rear steel box gate plate (12) are both shallow box-shaped structures with convex sides and concave inside; The two steel box gate plates are welded at the relative contacting convex parts around them to form a structure having two oppositely arranged side edges (111), a top wall (112) and a bottom wall, and a hollow interior.

3. The steel-concrete composite gate according to claim 1, characterized in that: A plurality of diagonal bracing ribs (2) are arranged at intervals inside the steel box gate plate (1); one side of each diagonal bracing rib (2) is welded to the front steel box gate plate (11), and the other side is welded to the rear steel box gate plate (12).

4. The steel-concrete composite gate according to claim 2, characterized in that: The pouring reserved holes (4) are provided on the top wall (112) of the steel box gate plate (1), and at least two holes are provided, which are used for pouring concrete into the hollow structure of the steel box gate plate (1) and for draining and exhausting water, respectively.

5. The steel-concrete composite gate according to claim 2, characterized in that: There is a gap between the steel box gate plate (1) and the gate groove (5), and the gap is 2 mm.

6. The steel-concrete composite gate according to claim 5, characterized in that: The rubber water stop strip (7) covers the two opposite side edges (111) of the steel box gate (1), the surface of the front steel box gate (11) inserted into the gate groove (5), and the surface of the rear steel box gate (12) inserted into the gate groove (5), filling the gap between the gate groove (5) and the steel box gate (1) and preventing the concrete poured in the steel box gate (1) from flowing around through the gap between the two steel box gates; The rubber water stop strip (7) adopts a P-type rubber water stop strip.

7. The steel-concrete composite gate according to claim 5, characterized in that: The two opposite sides (111) of the steel box gate plate (1) are provided with pouring overflow holes for overflowing part of the concrete poured into the steel box gate plate (1) into the gap between the steel box gate plate (1) and the gate groove (5), so as to integrally cast the gate groove (5) and the steel box gate plate (1).

8. The steel-concrete composite gate according to claim 2, characterized in that: It also comprises a lifting ring (3), which is symmetrically arranged on the top wall (112) of the steel box gate (1) so that a lifting device can lift the steel box gate (1).

9. The steel-concrete composite gate according to claim 1, characterized in that: The outer surface of the steel box gate (1) is coated with an anti-corrosion layer, wherein the anti-corrosion layer comprises a primer and a topcoat; The primer is epoxy asphalt paint; the topcoat is diluted epoxy asphalt paint.

10. The steel-concrete composite gate according to claim 1, characterized in that: Angle iron (6) is embedded in the gate groove (5) near the protruding foot of the steel box gate plate (1) to set the verticality of the gate groove (5).

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