Concrete embedded steel pipe water leakage prevention embedded structure

Abstract

The utility model provides a concrete embedded steel pipe water leakage prevention embedded structure which comprises an embedded steel pipe and a steel wing ring arranged on the embedded steel pipe in a sleeved mode, and a sealing assembly matched with the steel wing ring in a pressing mode is further arranged on the embedded steel pipe in a sleeved mode. The steel wing ring plays a preliminary waterproof role, and the sealing assembly plays a further waterproof role, so that the anti-leakage effect of the embedded structure is improved; according to the structure, leakage is avoided, links such as later leaking stoppage are reduced, operation is easy, installation is convenient, cost is low, the binding force with concrete is high, and the quality problem of leakage of a peripheral structure of a traditional embedded rigid pipe is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete construction, in particular to a concrete pre-buried steel pipe leak-proof pre-buried structure. Background Art

[0002] Roof leakage is a common quality problem that has not been eliminated. The reasons for roof leakage are many and complex, among which leakage at the root of the pre-buried pipes is one of the main reasons. The current method is to fix the position of the steel pipes during the construction of the floor slab and pour them with concrete, and then wrap them with waterproof materials in the later stage. This will cause the pre-buried steel pipes to separate due to insufficient bonding strength during the shrinkage of the concrete, resulting in gaps between the two and water leakage. The quality of the traditional construction pre-buried method cannot be actively verified, and when leakage occurs, it can only be handled passively.

[0003] The Chinese utility model with publication date of June 10, 2019 and publication number CN210153344U discloses a water-stop joint that prevents water leakage. The outer side of the water pipe joint is coated with a rust-proof metal pipe, and a rust-proof metal ring is arranged along the axial middle part of the rust-proof metal pipe; the rust-proof metal ring is welded to the outer wall of the rust-proof metal pipe; a covering tube is arranged on the outer side near the two ends of the rust-proof metal pipe, and the two ends of the water pipe joint extend out of the rust-proof metal pipe to form a boss, and the covering tube is connected to the boss. However, the structure of this fixing device is complicated, and the water-stop joint device needs to be pre-buried before the inner pipe is installed; the sealing method between the water-stop joint device and the inner pipe is prone to leakage. Summary of the invention

[0004] In view of the above technical problems, the utility model proposes a concrete pre-buried steel pipe anti-leakage pre-buried structure, which is used to solve the problem that the pre-buried pipe anti-leakage structure in the prior art is prone to leakage.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A pre-embedded structure for preventing leakage of concrete pre-embedded steel pipes, comprising a pre-embedded steel pipe and a steel wing ring sleeved on the pre-embedded steel pipe, and a sealing component sleeved on the pre-embedded steel pipe that is tightly matched with the steel wing ring. The utility model plays a preliminary waterproof role through the steel wing ring, and plays a further waterproof role through the sealing component, thereby improving the anti-leakage effect of the pre-embedded structure; the structure of the utility model not only avoids leakage and reduces the later steps of plugging leakage, but also is simple to operate, easy to install, low in cost, and has strong bonding with concrete, thereby solving the quality problem of leakage of the peripheral structure of the traditional pre-embedded steel pipe.

[0007] Furthermore, the sealing assembly includes a sealing ring sleeved on the embedded steel pipe and an extrusion structure sleeved on the embedded steel pipe for pressing the sealing ring onto the steel wing ring.

[0008] Furthermore, the extrusion structure is a nut, and an external thread connected to the nut thread is provided on the outer side of the embedded steel pipe.

[0009] Furthermore, the extrusion structure is a ring plate, and the ring plate is welded to the embedded steel pipe.

[0010] Furthermore, the extrusion structure is a steel ring plate, and the steel ring plate is connected to the embedded steel pipe by screws or bolts.

[0011] Furthermore, a side of the steel wing ring facing the sealing ring is provided with an extrusion portion cooperating with the extrusion structure for extruding the sealing ring.

[0012] Furthermore, the steel wing ring is provided with a through hole for the steel pipe to pass through, and the extrusion portion is a sealing ring extrusion surface which is arranged at one end of the through hole and is interference fit with the sealing ring.

[0013] Furthermore, the sealing ring extrusion surface is a conical slope surface coaxially arranged with the through hole, and the large end of the conical slope surface faces outwards and the small end is connected with the through hole.

[0014] Furthermore, a welding slope is provided at one end of the through hole away from the extrusion surface of the sealing ring.

[0015] Furthermore, the embedded steel pipe, steel wing ring and sealing assembly are provided in plurality, and each embedded steel pipe is connected with the steel wing ring and the sealing assembly to form a modular structure.

[0016] Beneficial effects of the utility model:

[0017] 1. The utility model plays a preliminary waterproof role through the steel wing ring, and plays a further waterproof role through the sealing component, thereby improving the anti-leakage effect of the embedded structure;

[0018] 2. The utility model provides a conical slope on one side of the steel wing ring and places a sealing ring that can be partially embedded in the conical slope. On the basis of the sealing ring being waterproof, the sealing ring is pressed tightly into the conical slope of the steel wing ring through an extrusion structure, thereby enhancing the waterproof effect;

[0019] 3. The utility model cooperates with the sealing ring extrusion surface and the extrusion structure to extrude the sealing ring in both the axial and radial directions, thereby greatly improving the sealing effect and the waterproof level. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 for Figure 1 Schematic diagram of the cross section of AA.

[0023] Figure 3 It is a structural schematic diagram of the steel wing ring of the utility model.

[0024] Reference numerals in the figure: 1. steel pipe, 2. steel wing ring, 21. sealing ring extrusion surface, 22. welding slope, 3. nut, 4. sealing ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1 and Figure 2 As shown, a concrete embedded steel pipe anti-leakage embedded structure described in Example 1 of the utility model comprises an embedded steel pipe 1 and a steel wing ring 2 sleeved on the embedded steel pipe 1. A sealing component is also sleeved on the embedded steel pipe 1. The sealing component and the steel wing ring 2 are pressed and matched to play a secondary waterproofing role. The embedded steel pipe 1, the steel wing ring 2 and the sealing component are all embedded in the concrete during the embedding.

[0027] Furthermore, the sealing assembly comprises a sealing ring 4 sleeved on the embedded steel pipe 1 and an extrusion structure sleeved on the embedded steel pipe 1. The extrusion structure is used to press the sealing ring 4 onto the steel wing ring 2.

[0028] Embodiment 2 differs from Embodiment 1 in that the extrusion structure is a nut 3 , and an external thread threadedly connected to the nut 3 is provided on the outer side of the embedded steel pipe 1 .

[0029] Embodiment 3 is different from Embodiment 1 in that the extrusion structure is a ring plate, and the ring plate is welded to the embedded steel pipe 1 .

[0030] Embodiment 4 is different from Embodiment 1 in that the extrusion structure is a steel ring plate, and the steel ring plate is connected to the embedded steel pipe 1 by screws or bolts.

[0031] Embodiment 5 is different from Embodiment 1 in that Figure 1 and Figure 3As shown, the steel wing ring 2 is provided with an extrusion portion on the side facing the sealing ring 4 , and the extrusion portion cooperates with the extrusion structure to extrude the sealing ring 4 .

[0032] Specifically, the steel wing ring 2 is provided with a through hole for the steel pipe 1 to pass through, and the extrusion portion is a sealing ring extrusion surface 21 arranged at one end of the through hole and having an interference fit with the sealing ring 4. Figure 3 As shown, the sealing ring extrusion surface 21 is a conical slope surface coaxially arranged with the through hole, and the large end of the conical slope surface faces outward, that is, toward the extrusion structure, and the small end of the conical slope surface faces inward and connects with the through hole.

[0033] Embodiment 6 is different from Embodiment 5 in that Figure 1 and Figure 3 As shown, a welding slope 22 is provided at one end of the through hole away from the sealing ring extrusion surface 21.

[0034] Embodiment 7 differs from Embodiment 1 in that the embedded steel pipe 1, the steel wing ring 2 and the sealing assembly are provided in plurality, and each embedded steel pipe 1 is connected with the steel wing ring 2 and the sealing assembly to form a modular structure.

[0035] Example 8: When the construction work is carried out on site, the utility model is carried out in the following construction sequence:

[0036] 1. Process the embedded steel pipe 1 into sections of 60 cm in length, remove rust from the outside of the steel pipe to make the surface of the steel pipe smooth and free of impurities, and process an external thread at one end of the embedded steel pipe 1.

[0037] 2. First, grind and process the steel wing ring 2 to produce the welding slope 22 and the conical slope. Weld the steel wing ring 2 and the embedded steel pipe 1 at the corresponding positions. The weld should be smooth and full without gaps or bulges.

[0038] 3. Put the sealing ring 4 on the embedded steel pipe 1, put on the extrusion structure and rotate it until the sealing ring 4 is pressed tightly into the conical slope, and fix the position of the extrusion structure.

[0039] 4. Locate the embedded position, and after positioning, weld and fix the embedded steel pipe 1 to the steel bar or template to prevent deviation.

[0040] 5. Seal the upper edge of the embedded steel pipe 1 with tape to prevent concrete from falling into the steel pipe and causing blockage during concrete pouring.

[0041] 6. If the embedded steel pipe 1 is displaced or deviated during the concrete pouring process, timely adjustments shall be made. After the concrete is poured, the embedded position of the embedded steel pipe 1 shall be fully vibrated in time to ensure the compactness of the concrete, and subsequent construction shall be carried out after the concrete strength is reached.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that any modification to the technical solutions described in the aforementioned embodiments, or any equivalent replacement of some or all of the technical features therein, within the spirit and principles of the present invention, and such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A leak-proof pre-buried concrete steel pipe structure, characterized in that: The invention comprises a pre-buried steel pipe (1) and a steel wing ring (2) sleeved on the pre-buried steel pipe (1); the pre-buried steel pipe (1) is also sleeved with a sealing component which is pressed and matched with the steel wing ring (2).

2. The concrete embedded steel pipe water-proof embedded structure according to claim 1, characterized in that: The sealing assembly comprises a sealing ring (4) sleeved on the embedded steel pipe (1) and an extrusion structure sleeved on the embedded steel pipe (1) for pressing the sealing ring (4) onto the steel wing ring (2).

3. The concrete embedded steel pipe anti-leakage embedded structure according to claim 2 is characterized in that: The extrusion structure is a nut (3), and the outer side of the embedded steel pipe (1) is provided with an external thread which is threadably connected to the nut (3).

4. The concrete embedded steel pipe anti-leakage embedded structure according to claim 2, characterized in that: The extrusion structure is a ring plate, which is welded to the embedded steel pipe (1).

5. The concrete embedded steel pipe anti-leakage embedded structure according to claim 2, characterized in that: The extrusion structure is a steel ring plate, and the steel ring plate is connected to the embedded steel pipe (1) by screws or bolts.

6. The concrete embedded steel pipe anti-leakage embedded structure according to any one of claims 2 to 5, characterized in that: The steel wing ring (2) is provided with an extrusion portion on a side facing the sealing ring (4) and is used to extrude the sealing ring (4) in cooperation with the extrusion structure.

7. The leak-proof pre-buried concrete steel pipe structure according to claim 6, characterized in that: The steel wing ring (2) is provided with a through hole for the steel pipe (1) to pass through, and the extrusion portion is a sealing ring extrusion surface (21) arranged at one end of the through hole and having an interference fit with the sealing ring (4).

8. The concrete embedded steel pipe water-leakage-proof embedded structure according to claim 7, characterized in that: The sealing ring extrusion surface (21) is a conical slope surface coaxially arranged with the through hole, with the large end of the conical slope surface facing outwards and the small end connected to the through hole.

9. The concrete embedded steel pipe anti-leakage embedded structure according to claim 7 or 8, characterized in that: A welding slope (22) is provided at one end of the through hole away from the sealing ring extrusion surface (21).

10. The concrete embedded steel pipe anti-leakage embedded structure according to any one of claims 1 to 5, 7 and 8, characterized in that: The embedded steel pipe (1), the steel wing ring (2) and the sealing assembly are provided in plurality, and each embedded steel pipe (1) is connected with the steel wing ring (2) and the sealing assembly to form a modular structure.

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