Large-caliber compression-resistant nodular cast iron water supply pipe

Abstract

The utility model discloses a large-caliber compression-resistant nodular cast iron water supply pipe which comprises a nodular cast iron pipe, a cement mortar lining is arranged in the middle of the inner wall of the nodular cast iron pipe, threaded rings are arranged at the two ends of the outer wall of the nodular cast iron pipe, and a compression-resistant mechanism is arranged on one side of the nodular cast iron pipe. The compression-resistant mechanism comprises a connecting ring, an inserting pipe, a flange plate, a first sealing gasket, a first reinforcing rib, a second reinforcing rib, a mounting hole, a threaded groove and a second sealing gasket. According to the large-diameter compression-resistant nodular cast iron water supply pipe, the two sets of first reinforcing ribs and second reinforcing ribs are arranged in the inserting pipe in a crossed mode, the strength of the nodular cast iron pipe is improved while the strength of the inserting pipe is improved, the compression resistance of the nodular cast iron pipe is better, and the first sealing gasket is arranged on the other side of the connecting ring; and when the two sets of connecting rings are connected and fixed through the flange plates, the sealing effect is achieved, the two sets of nodular cast iron pipes can be conveniently mounted and dismounted, and better use prospects are brought.

Description

Technical Field

[0001] The utility model relates to the field of ductile iron water supply pipes, in particular to a large-diameter pressure-resistant ductile iron water supply pipe. Background Art

[0002] Ductile iron pipes are made of magnesium or rare earth magnesium combined with gold spheroidizers added to molten iron before pouring to spheroidize graphite and reduce stress concentration, so that the pipe has the advantages of high strength, high elongation, impact resistance, corrosion resistance, and good sealing. The inner wall is lined with cement mortar, which improves the pipeline water supply environment, increases water supply capacity, and reduces energy consumption. The pipe mouth adopts a flexible interface. The existing ductile iron water supply pipe has weak pressure resistance and is easily deformed by pressure, which affects its use and is inconvenient to install and disassemble two adjacent groups of ductile iron water supply pipes, which has brought certain adverse effects on people's use process. For this reason, we propose a large-diameter pressure-resistant ductile iron water supply pipe. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a large-diameter pressure-resistant ductile iron water supply pipe, which has the advantages of increasing the strength of the insert pipe and the ductile iron pipe by arranging two groups of first reinforcing ribs and second reinforcing ribs crosswise inside the insert pipe, thereby improving the strength of the insert pipe and the ductile iron pipe, making the ductile iron pipe more resistant to pressure, and arranging a first sealing gasket on the other side of the connecting ring, which plays a sealing role when the two groups of connecting rings are connected and fixed by flanges, and facilitates the installation and disassembly of the two groups of ductile iron pipes, etc., which can effectively solve the problems in the background technology.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a large-diameter pressure-resistant ductile iron water supply pipe, including a ductile iron pipe, a cement mortar lining is provided in the middle of the inner wall of the ductile iron pipe, threaded rings are provided at both ends of the outer wall of the ductile iron pipe, and a pressure-resistant mechanism is provided on one side of the ductile iron pipe, and the pressure-resistant mechanism includes a connecting ring, a plug, a flange, a first sealing gasket, a first reinforcing rib, a second reinforcing rib, a mounting hole, a threaded groove and a second sealing gasket, the connecting ring is located on one side of the ductile iron pipe, and the plug is located in the middle of the connecting ring.

[0007] Preferably, the flange is located on one side of the outer wall of the connecting ring, the mounting hole is opened on the outer surface of one side of the flange, the first sealing gasket is located on the outer surface of one side of the connecting ring, the two groups of the first reinforcing ribs are respectively located on both sides of the inner wall of the insert, the second reinforcing rib is located on one side of the first reinforcing rib, the second sealing gasket is located on the inner surface of one side of the connecting ring, and the threaded groove is located on the inner wall of the connecting ring.

[0008] Preferably, the first reinforcing ribs and the second reinforcing ribs are overlapped and cross-jointed with each other.

[0009] Preferably, the insert pipe is spliced ​​with the ductile iron pipe.

[0010] Preferably, the connecting ring is threadedly connected to the thread ring via a thread groove, and the second sealing gasket, the first sealing gasket and the connecting ring are all fixedly connected.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model provides a large-diameter pressure-resistant ductile iron water supply pipe, which has the following beneficial effects:

[0013] 1. A large-diameter pressure-resistant ductile iron water supply pipe is provided with two groups of first reinforcing ribs and second reinforcing ribs arranged crosswise inside the insert pipe, thereby improving the strength of the insert pipe and the strength of the ductile iron pipe at the same time, so that the ductile iron pipe has better pressure resistance.

[0014] 2. This large-diameter pressure-resistant ductile iron water supply pipe has a first sealing gasket on the other side of the connecting ring, which plays a sealing role when the two sets of connecting rings are connected and fixed through the flange, making it convenient to install and disassemble the two sets of ductile iron pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of a large-diameter pressure-resistant ductile iron water supply pipe.

[0016] Figure 2 This is a front view analysis diagram of a large-diameter pressure-resistant ductile iron water supply pipe of the utility model.

[0017] Figure 3 The utility model discloses a structural diagram of a pressure-resistant mechanism in a large-diameter pressure-resistant ductile iron water supply pipe.

[0018] Figure 4 This is a front view analysis diagram of the pressure-resistant mechanism in a large-diameter pressure-resistant ductile iron water supply pipe of the utility model.

[0019] In the figure: 1, ductile iron pipe; 2, cement mortar lining; 3, threaded ring; 4, pressure-resistant mechanism; 5, connecting ring; 6, insert; 7, flange; 8, first sealing gasket; 9, first reinforcing rib; 10, second reinforcing rib; 11, mounting hole; 12, threaded groove; 13, second sealing gasket. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] The present embodiment is a large-diameter pressure-resistant ductile iron water supply pipe.

[0022] like Figure 1-4 As shown, it includes a ductile iron pipe 1, a cement mortar lining 2 is provided in the middle of the inner wall of the ductile iron pipe 1, threaded rings 3 are provided at both ends of the outer wall of the ductile iron pipe 1, and a pressure-resistant mechanism 4 is provided on one side of the ductile iron pipe 1. The pressure-resistant mechanism 4 includes a connecting ring 5, a plug 6, a flange 7, a first sealing gasket 8, a first reinforcing rib 9, a second reinforcing rib 10, a mounting hole 11, a threaded groove 12 and a second sealing gasket 13. The connecting ring 5 is located on one side of the ductile iron pipe 1, and the plug 6 is located in the middle of the connecting ring 5.

[0023] The flange 7 is located on one side of the outer wall of the connecting ring 5, the mounting hole 11 is opened on the outer surface of one side of the flange 7, the first sealing gasket 8 is located on the outer surface of one side of the connecting ring 5, the two groups of first reinforcing ribs 9 are respectively located on both sides of the inner wall of the insert 6, the second reinforcing rib 10 is located on one side of the first reinforcing rib 9, the second sealing gasket 13 is located on the inner surface of one side of the connecting ring 5, and the thread groove 12 is located on the inner wall of the connecting ring 5; the first reinforcing rib 9 and the second reinforcing rib 10 are overlapped, and the first reinforcing rib 9 and the second reinforcing rib 10 are cross-intersected; the insert 6 and the ductile iron pipe 1 are plug-in; the connecting ring 5 is threadedly connected to the thread ring 3 through the thread groove 12, and the second sealing gasket 13, the first sealing gasket 8 and the connecting ring 5 are all fixedly connected.

[0024] It should be noted that the utility model is a large-diameter pressure-resistant ductile iron water supply pipe. The insert pipe 6 arranged on the connecting ring 5 is inserted into the ductile iron pipe 1 and overlapped with the cement mortar lining 2. The connecting ring 5 is rotated, and the thread groove 12 on the connecting ring 5 is threadedly connected with the thread ring 3 before the connecting ring 5 and the ductile iron pipe 1 are installed. The connecting ring 5 is tightly fitted with the ductile iron pipe 1 for sealing and fixing. Two groups of first reinforcing ribs 9 and second reinforcing ribs 10 are arranged crosswise inside the insert pipe 6 to improve the strength of the insert pipe 6 and the ductile iron pipe 1, so that the ductile iron pipe 1 has better pressure resistance. A first sealing gasket 8 is arranged on the other side of the connecting ring 5. When the two groups of connecting rings 5 ​​are connected and fixed through the flange 7, it plays a sealing role, which facilitates the installation and disassembly of the two groups of ductile iron pipes 1.

[0025] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[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 large-diameter pressure-resistant ductile iron water supply pipe, comprising a ductile iron pipe (1), characterized in that: A cement mortar lining (2) is provided in the middle of the inner wall of the ductile iron pipe (1), threaded rings (3) are provided at both ends of the outer wall of the ductile iron pipe (1), and a pressure-resistant mechanism (4) is provided on one side of the ductile iron pipe (1). The pressure-resistant mechanism (4) comprises a connecting ring (5), a plug (6), a flange (7), a first sealing gasket (8), a first reinforcing rib (9), a second reinforcing rib (10), a mounting hole (11), a threaded groove (12) and a second sealing gasket (13). The connecting ring (5) is located on one side of the ductile iron pipe (1), and the plug (6) is located in the middle of the connecting ring (5).

2. A large-diameter pressure-resistant ductile iron water supply pipe according to claim 1, characterized in that: The flange (7) is located on one side of the outer wall of the connecting ring (5), the mounting hole (11) is opened on the outer surface of one side of the flange (7), the first sealing gasket (8) is located on the outer surface of one side of the connecting ring (5), the two groups of the first reinforcing ribs (9) are respectively located on both sides of the inner wall of the insert (6), the second reinforcing rib (10) is located on one side of the first reinforcing rib (9), the second sealing gasket (13) is located on the inner surface of one side of the connecting ring (5), and the threaded groove (12) is located on the inner wall of the connecting ring (5).

3. A large-diameter pressure-resistant ductile iron water supply pipe according to claim 2, characterized in that: The first reinforcing rib (9) and the second reinforcing rib (10) are overlapped, and the first reinforcing rib (9) and the second reinforcing rib (10) are cross-connected.

4. A large-diameter pressure-resistant ductile iron water supply pipe according to claim 3, characterized in that: The insert pipe (6) is spliced ​​with the ductile iron pipe (1).

5. A large-diameter pressure-resistant ductile iron water supply pipe according to claim 4, characterized in that: The connecting ring (5) is threadedly connected to the thread ring (3) via a thread groove (12), and the second sealing gasket (13), the first sealing gasket (8) and the connecting ring (5) are all fixedly connected.

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