Sleeved fastening type steel pipe for eliminating primary embedded blockage

Abstract

The utility model belongs to the technical field of pipeline connection, and discloses a sleeved fastening type steel pipe for eliminating primary embedded blockage, which comprises two steel pipe bodies, the two steel pipe bodies are fixedly connected through a connecting piece, a sealing piece is arranged between the two steel pipe bodies, and the connecting piece is positioned in the sealing piece. According to the utility model, multiple sealing defensive lines are formed by arranging the sealing element and filling the sealing adhesive layer between the outer wall of the steel pipe body and the inner wall of the connecting joint, the sealing element can be tightly attached to the outer wall of the steel pipe body and wrap the connecting piece, and the sealing element is arranged to be a heat shrink tube. Foreign matters such as concrete, gravel and dust are effectively prevented from entering the steel pipe, tiny gaps are further filled with the sealant layer, water and fine particles are prevented from invading, the risk that the steel pipe is blocked is greatly reduced, and it is guaranteed that follow-up work such as threading after pre-burying can be smoothly conducted.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connection technical field, especially a kind of for eliminating once pre-buried plugging sleeve jointing fastening type steel pipe. BACKGROUND

[0002] In building electrical installation, communication line laying and other engineering fields involving pipeline pre-buried, steel pipe pre-buried is a common and key construction technology.Once pre-buried refers to pre-buried steel pipe in concrete structure etc.

[0003] Chinese utility model patent with publication number CN2842828Y discloses a sleeve jointing fastening type wire steel sleeve pipe with annular groove, which is connected by screw and connecting fitting when connecting two wire steel sleeve pipes by machining annular groove on both ends of wire steel sleeve pipe.

[0004] But there are still some defects in actual use: in building construction environment, field situation is complex, in steel pipe pre-buried process, if not effectively protecting steel pipe port, foreign matter such as concrete, sand, dust can easily enter steel pipe inside.Especially in concrete pouring process, due to vibration etc.

[0005] Therefore, a kind of for eliminating once pre-buried plugging sleeve jointing fastening type steel pipe is provided. CONTENT OF UTILITY MODEL

[0006] The utility model aims at providing a kind of for eliminating once pre-buried plugging sleeve jointing fastening type steel pipe, to solve or at least alleviate one or more of the above problems and other aspects in prior art.

[0007] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the utility model comprises:

[0008] A kind of for eliminating once pre-buried plugging sleeve jointing fastening type steel pipe, including steel pipe body, two described steel pipe body are fixedly connected by connecting piece between two, two described steel pipe body are provided with sealing element, the connecting piece is located in the sealing element, the sealing element can seal the connecting place of the connecting piece and the steel pipe body.

[0009] The utility model relates to a kind of sleeve jointing fastening formula steel pipe for eliminating one-time pre-buried block, wherein the connecting piece includes connecting joint, the connecting joint is tubularly arranged, both ends of the connecting joint are provided with threaded hole, the outer wall of both ends of the steel pipe body is provided with annular groove, after the steel pipe body is inserted into the inside of the connecting joint, the lower end of bolt is inserted into the annular groove after threaded hole is penetrated, the connecting place of two steel pipe bodies is located in the inside of the connecting joint.

[0010] In a kind of sleeve jointing fastening formula steel pipe for eliminating one-time pre-buried block according to the utility model, wherein the sealing element is set as heat shrink tube, after the heat shrink tube is shrunk tightly, the end of the heat shrink tube can be tightly attached on the outer wall of the steel pipe body, and the connecting joint is located in the inside of the heat shrink tube.

[0011] In a kind of sleeve jointing fastening formula steel pipe for eliminating one-time pre-buried block according to the utility model, wherein the inner diameter of the connecting joint is greater than the outer diameter of the steel pipe body by 0.2mm-0.5mm.

[0012] In a kind of sleeve jointing fastening formula steel pipe for eliminating one-time pre-buried block according to the utility model, wherein the outer wall of the steel pipe body and the inner wall of the connecting joint are filled with sealing adhesive layer.

[0013] In a kind of sleeve jointing fastening formula steel pipe for eliminating one-time pre-buried block according to the utility model, wherein the outer wall of both ends of the steel pipe body is provided with chamfer.

[0014] The utility model at least has following beneficial effects:

[0015] The utility model forms multiple sealing defense lines by being provided with sealing element and filling sealing adhesive layer between the outer wall of steel pipe body and the inner wall of connecting joint, sealing element can be tightly attached on the outer wall of steel pipe body, and wrapping connecting piece, effectively blocks concrete, sand, dust and other foreign matters to enter the inside of steel pipe, sealing adhesive layer further fills tiny gap, prevents moisture and small particle from invading, greatly reduces the risk of steel pipe blockage, ensures that subsequent work such as threading after pre-buried can be carried out smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings explained herein are used to provide further understanding of the present application, and form part of the present application, the illustrative embodiment of the present application and its explanation are used to explain the present application, and do not constitute improper limitation to the present application.

[0017] Figure 1 It is the structural schematic view of the steel pipe body of the utility model;

[0018] Figure 2 It is the structural schematic view of the connecting joint of the utility model;

[0019] Figure 3 It is a partial cross-sectional structure schematic view of the utility model;

[0020] Figure 4 It is Figure 3 A enlarged structure schematic view of A part in it.

[0021] Explanation of reference numerals:

[0022] 1, steel pipe body; 101, annular groove; 102, chamfer; 2, connecting joint; 201, threaded hole; 3, bolt; 4, sealing element; 5, sealing adhesive layer. Specific implementation

[0023] The implementation of the present application will be described in detail below with the help of drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0024] Example 1

[0025] Please refer to Figures 1 to 4 The embodiment of the utility model provides a kind of for eliminating once pre-burying plug-in sleeve jointing type steel pipe, including steel pipe body 1, two steel pipe body 1 between by connecting piece fixed connection, two steel pipe body 1 between being provided with sealing element 4, connecting piece is located in sealing element 4, sealing element 4 can be sealed to the connecting place of connecting piece and steel pipe body 1.

[0026] By setting sealing element 4, the connecting place of connecting piece and steel pipe body 1 can be effectively protected.In once pre-burying construction, such as concrete pouring scene, can prevent concrete, sandstone, dust and other foreign matters from invading the inside of steel pipe body 1 from connecting place, so as to avoid steel pipe blockage, guarantee subsequent threading and other procedures to proceed smoothly.

[0027] In the embodiment, connecting piece includes connecting joint 2, connecting joint 2 is tubularly arranged, both ends of connecting joint 2 are provided with threaded hole 201, the outer wall of both ends of steel pipe body 1 is provided with annular groove 101, after steel pipe body 1 is inserted into the inside of connecting joint 2, the lower end of bolt 3 is screwed into annular groove 101 after threaded hole 201, the connecting place of two steel pipe body 1 is located in the inside of connecting joint 2, wherein the inner diameter of connecting joint 2 is greater than the outer diameter of steel pipe body 1 0.2mm-0.5mm.

[0028] By adopting the above technical scheme, the connection of steel pipe body 1 and connecting joint 2 is stable and reliable.The cooperation of bolt 3 and annular groove 101 limits the axial and circumferential movement of steel pipe body 1 in connecting joint 2, and enhances the stability of connection.

[0029] In this embodiment, the sealing member 4 is provided as a heat shrink tube. After being shrunk by heat, the end of the heat shrink tube can tightly fit on the outer wall of the steel pipe body 1, and the connecting joint 2 is located inside the heat shrink tube. The heat shrink tube has good shrinkage performance and can tightly wrap the connecting joint 2 and the connecting part of the steel pipe body 1 after being shrunk by heat. The tightly fitting characteristic forms a strict sealing barrier, effectively preventing moisture, dust and the like from entering, thereby playing a role of waterproofing, dustproofing and corrosion prevention, and further reducing the risk of steel pipe blockage. In addition, the heat shrink tube is relatively simple to install, and can be shrunk by heating, thereby improving the construction efficiency.

[0030] Embodiment 2

[0031] The difference between this embodiment and embodiment 1 is that a sealing glue layer 5 is filled between the outer wall of the steel pipe body 1 and the inner wall of the connecting joint 2.

[0032] The sealing glue layer 5 further fills the small gap between the steel pipe body 1 and the connecting joint 2, and enhances the sealing effect of the connecting part. It can effectively block the invasion of small particles and moisture, and improve the anti-blocking capability. In addition, the sealing glue layer 5 also has a certain elasticity, which can buffer the external force impact on the connecting part, reduce the loosening caused by vibration and the like, and prolong the service life of the connection.

[0033] Embodiment 3

[0034] The difference between this embodiment and embodiment 2 is that chamfers 102 are formed at both ends of the steel pipe body 1. The chamfers 102 at both ends of the steel pipe body 1 make the steel pipe more smooth when being inserted into the connecting joint 2. The chamfers play a guiding role, reduce the resistance and jamming phenomenon in the insertion process, avoid the problems of loose connection or damage to the sealing structure caused by difficult insertion, improve the installation efficiency and quality, and help to ensure the anti-blocking performance of the entire sleeving and fastening type steel pipe system.

[0035] Working principle:

[0036] a1: The heat shrink tube is sleeved on the steel pipe body 1;

[0037] a2: The two steel pipe bodies 1 are connected and fixed through the connecting joint 2;

[0038] a3: The heat shrink tube is slid along the steel pipe body 1 to be displaced, so that the heat shrink tube is sleeved at the connecting part of the two pipes, and at this time the connecting joint 2 is located inside the heat shrink tube;

[0039] a4: The heat shrink tube is heated, and after being heated, the heat shrink tube will shrink and tightly fit on the outer wall of the steel pipe body 1, and the sealing operation is completed.

[0040] The utility model can also be applied to the connection with the switch box.

[0041] The above description shows and describes several preferred embodiments of the present application, but as previously discussed, it is understood that the present application is not limited to the forms disclosed herein, but is to be accorded the broadest scope of the claims appended hereto subject to the requirements of the prior art, and can be practiced in various other combinations, modifications, and environments within the scope of the concepts disclosed herein, and using no more than the knowledge of those skilled in the pertinent art. Changes and modifications can be practiced by those skilled in the art without departing from the spirit and scope of the present application, which is intended to be limited only by the scope of the appended claims.

Claims

1. A type of sleeved, tightened steel pipe for eliminating primary pre-embedded blockages, characterized in that, Includes a steel pipe body (1), two steel pipe bodies (1) are fixedly connected by a connector, and a sealing element (4) is provided between the two steel pipe bodies (1). The connector is located inside the sealing element (4), and the sealing element (4) can seal the connection between the connector and the steel pipe body (1). The connector includes a connecting joint (2), and a sealant layer (5) is filled between the outer wall of the steel pipe body (1) and the inner wall of the connecting joint (2).

2. The sleeve-type steel pipe for eliminating primary pre-embedded blockage according to claim 1, characterized in that: The connecting joint (2) is tubular, and threaded holes (201) are provided at both ends of the connecting joint (2). Annular grooves (101) are provided on the outer walls of both ends of the steel pipe body (1). After the steel pipe body (1) is inserted into the connecting joint (2), the lower end of the bolt (3) is threaded through the threaded hole (201) and extends into the annular groove (101). The connection point of the two steel pipe bodies (1) is located inside the connecting joint (2).

3. A type of sleeved tight-fitting steel pipe for eliminating primary pre-embedded blockage according to claim 2, characterized in that: The sealing element (4) is a heat shrink tube. After the heat shrink tube is heated and tightened, the end of the heat shrink tube can be tightly attached to the outer wall of the steel pipe body (1). The connecting joint (2) is located inside the heat shrink tube.

4. A type of sleeved tight-fitting steel pipe for eliminating primary pre-embedded blockage according to claim 2, characterized in that: The inner diameter of the connecting joint (2) is 0.2mm-0.5mm larger than the outer diameter of the steel pipe body (1).

5. A type of sleeved tight-fitting steel pipe for eliminating primary pre-embedded blockage according to any one of claims 1-4, characterized in that: Both ends of the steel pipe body (1) are chamfered (102).

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