Bimetal composite leakproof reducing pipe fitting

Abstract

The utility model relates to the field of reducing pipe fittings, and discloses a bimetal composite leakproof reducing pipe fitting which comprises a main body, a clamping module is arranged at the upper end of the outer surface of the main body in a clamping mode, the main body is made of corrosion-resistant alloy and high-strength carbon steel, the corrosion-resistant alloy is arranged on the inner layer and accounts for 30% of the whole, and the high-strength carbon steel is made of high-strength carbon steel. The high-strength carbon steel is arranged on the outer layer and accounts for 70% of the whole body, and the main body comprises a connecting pipe. According to the utility model, the main body is made of the corrosion-resistant alloy and the high-strength carbon steel, the corrosion-resistant alloy and the high-strength carbon steel are fixed through a hot rolling process, and the corrosion-resistant alloy is arranged on the inner layer, so that the corrosion-resistant alloy is in direct contact with a medium and has corrosion-resistant and wear-resistant functions; the high-strength carbon steel on the outer layer is responsible for bearing pipeline pressure and mechanical loads, when the device is connected with other pipelines, the clamping modules arranged at the upper end of the outer surface of the device can clamp the pipelines, and the pipelines and the device are connected more firmly.

Description

Technical Field

[0001] This utility model relates to the field of reducing pipe fittings, and in particular to a bimetallic composite leak-proof reducing pipe fitting. Background Technology

[0002] A reducer, also known as a reducer, is a pipe fitting used to connect pipes or equipment with different diameters. It is divided into concentric reducers and eccentric reducers. A concentric reducer has the centers of the two ends of the pipe on the same straight line. Its characteristic is that the pipe diameter change is uniform and the fluid flow in the pipe is relatively smooth. It is suitable for occasions with high requirements for fluid flow. An eccentric reducer has the centers of the two ends of the pipe on different straight lines. One side of the pipe wall remains flat. This type of reducer is often used when it is necessary to change the height or slope of the pipe.

[0003] The material used in existing reducers is generally carbon steel, which has high strength and toughness and can withstand greater pressure and impact. The price is relatively low. However, carbon steel is inferior to alloy materials in terms of corrosion resistance and wear resistance. In addition, existing reducers are generally connected to pipes by threads, but long-term use can cause the two pipes to loosen, making the connection between the two pipes prone to leakage.

[0004] Therefore, those skilled in the art have provided a bimetallic composite leak-proof reducer fitting to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a bimetallic composite leak-proof reducer fitting. When connecting another pipe and device, the tapered pipe of the other pipe and the threaded enclosure of the device are connected. Since the inner part of the sealing ring is conical, it can fit on the outer surface of the tapered pipe, increasing the contact area between the sealing ring and the tapered pipe and making the seal between the two pipes stronger.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a bimetallic composite anti-leakage reducer fitting, comprising a main body, wherein a snap-fit ​​module is snap-fitted onto the upper end of the outer surface of the main body, the main body is made of corrosion-resistant alloy and high-strength carbon steel, wherein the corrosion-resistant alloy is disposed in the inner layer accounting for 30% of the whole, and the high-strength carbon steel is disposed in the outer layer accounting for 70% of the whole, and the main body includes a connecting pipe.

[0007] A first fixing tube is fixedly installed on the lower end face of the connecting tube, and a second fixing tube is fixedly installed on the upper end face of the connecting tube. A threaded surround is fixedly installed on the lower end face of the first fixing tube, and a sealing ring is fixedly installed on the lower end of the inner surface of the threaded surround. A tapered tube is fixedly installed on the upper end face of the second fixing tube. The snap-fit ​​module includes two support plates, and snap-fit ​​rings are fixedly installed on the upper and lower ends of the two support plates.

[0008] Furthermore, both the first fixing tube and the second fixing tube have mounting grooves on their outer surfaces, and snap-fit ​​blocks are fixedly installed on the bottom surfaces of both mounting grooves.

[0009] Furthermore, a sealing rubber gasket is fixedly provided on the concave surface of the first fixing tube.

[0010] Furthermore, the inside of the sealing ring is tapered, narrower at the top and wider at the bottom.

[0011] Furthermore, a threaded tube is fixedly provided on the upper end face of the tapered tube, and a rubber ring is fixedly provided on the upper end face of the threaded tube.

[0012] Furthermore, each of the four snap rings has a mounting block fixedly installed at its front and rear ends, and a fixing bolt is threaded onto one side of each of the four mounting blocks.

[0013] Furthermore, each of the four snap rings has multiple snap grooves on one side opposite to the other.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model proposes a bimetallic composite leak-proof reducing pipe fitting. The main body is made of corrosion-resistant alloy and high-strength carbon steel. The corrosion-resistant alloy and high-strength carbon steel are fixed together by hot rolling. The corrosion-resistant alloy is set in the inner layer, allowing it to directly contact the medium and undertake the functions of corrosion prevention and wear resistance. The outer high-strength carbon steel is responsible for bearing the pipeline pressure and mechanical load. When the device is connected to other pipelines, the snap-fit ​​module set at the upper end of the outer surface of the device can snap the pipeline, making the connection between the pipeline and the device more secure.

[0016] 2. The present invention proposes a bimetallic composite leak-proof reducing pipe fitting. The main structure includes a connecting pipe, a second fixing pipe at the upper end of the connecting pipe, and a first fixing pipe at the lower end of the connecting pipe. A threaded surround is fixed at the lower end of the first fixing pipe, and a sealing ring is installed inside the threaded surround. The sealing ring has a conical internal shape. A tapered pipe is provided at the upper end of the second fixing pipe. When connecting another pipe and device, the tapered pipe and the threaded surround are connected. Since the sealing ring has a conical internal shape, it can fit over the outer surface of the tapered pipe, increasing the contact area between the sealing ring and the tapered pipe and strengthening the seal between the two pipes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main axial view of the present invention;

[0018] Figure 2 This is a bottom-view axial side view of the present invention;

[0019] Figure 3 This is an axonometric schematic diagram of the main structure of this utility model;

[0020] Figure 4 This is a side view of the main structure of the present invention.

[0021] Legend:

[0022] 1. Main body; 2. Snap-fit ​​module; 101. Connecting pipe; 102. First fixing pipe; 103. Second fixing pipe; 104. Mounting groove; 105. Snap-fit ​​block; 106. Tapered pipe; 107. Threaded pipe; 108. Rubber ring; 109. Sealing rubber gasket; 110. Threaded surround; 111. Sealing ring; 201. Support plate; 202. Snap-fit ​​ring; 203. Snap-fit ​​groove; 204. Mounting block; 205. Fixing bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1-4 The present invention provides an embodiment of a bimetallic composite anti-leakage reducer fitting, comprising a main body 1, wherein a snap-fit ​​module 2 is snap-fitted onto the upper end of the outer surface of the main body 1, the main body 1 is made of corrosion-resistant alloy and high-strength carbon steel, wherein the corrosion-resistant alloy is disposed in the inner layer accounting for 30% of the whole, and the high-strength carbon steel is disposed in the outer layer accounting for 70% of the whole, and the main body 1 includes a connecting pipe 101.

[0025] A first fixing tube 102 is fixedly installed on the lower end face of the connecting tube 101, and a second fixing tube 103 is fixedly installed on the upper end face of the connecting tube 101. A threaded surround 110 is fixedly installed on the lower end face of the first fixing tube 102, and a sealing ring 111 is fixedly installed on the lower end of the inner surface of the threaded surround 110. A tapered tube 106 is fixedly installed on the upper end face of the second fixing tube 103. An installation groove 104 is opened on the outer surface of both the first fixing tube 102 and the second fixing tube 103. A snap-fit ​​block 105 is fixedly installed on the bottom surface of both installation grooves 104. A sealing rubber gasket 109 is fixedly installed on the concave surface of the first fixing tube 102. The sealing ring 111 is tapered inside, narrow at the top and wide at the bottom. A threaded tube 107 is fixedly installed on the upper end face of the tapered tube 106, and a rubber ring 108 is fixedly installed on the upper end face of the threaded tube 107.

[0026] Specifically, the upper outer surface of the main body 1 is provided with a snap-fit ​​module 2. When the device is connected to other pipelines, the snap-fit ​​module 2 can snap the two devices together, preventing them from rotating after connection, thus making the connection more secure. The main body 1 is made of corrosion-resistant alloy and high-strength carbon steel. The corrosion-resistant alloy and high-strength carbon steel are fixed together by a hot rolling process. The corrosion-resistant alloy is located in the inner layer and is in direct contact with the medium, providing corrosion protection and wear resistance. The outer high-strength carbon steel is responsible for bearing the pipeline pressure and mechanical load. The main structure of the main body 1 includes a connecting pipe 101, a second fixing pipe 103 at the upper end of the connecting pipe 101, and a first fixing pipe 102 at the lower end of the connecting pipe 101. A threaded surround 110 is fixed to the lower end of the first fixing pipe 102, and a sealing ring 111 is installed inside the threaded surround 110. The sealing ring 111 has a conical internal shape. A tapered tube 106 is provided at the upper end of the second fixed tube 103. A threaded tube 107 is fixed at the upper end of the tapered tube 106. When connecting another pipe and device, the threaded tube 107 and the threaded enclosure 110 are connected. The rubber ring 108 fixed at the upper end of the threaded tube 107 can press against the sealing rubber pad 109 on the concave surface of the other pipe, making the threaded tube 107 more airtight after connection. At the same time, since the sealing ring 111 has a conical internal shape, it can fit on the outer surface of the tapered tube 106, making the contact area between the sealing ring 111 and the tapered tube 106 larger, making the seal between the two pipes stronger. The outer surfaces of the first fixed tube 102 and the second fixed tube 103 are both provided with mounting grooves 104. A snap-fit ​​block 105 is provided inside the mounting groove 104, allowing the snap-fit ​​module 2 to snap into the mounting groove 104.

[0027] Reference Figure 2The snap-fit ​​module 2 includes two support plates 201. Snap-fit ​​rings 202 are fixedly installed at the upper and lower ends of the two support plates 201. Mounting blocks 204 are fixedly installed at the front and rear ends of the four snap-fit ​​rings 202. Fixing bolts 205 are threaded onto one side of each of the four mounting blocks 204. Multiple snap-fit ​​grooves 203 are opened on opposite sides of each of the four snap-fit ​​rings 202.

[0028] Specifically, the main structure of the snap-fit ​​module 2 includes a support plate 201, with snap-fit ​​rings 202 fixed at both the upper and lower ends of the support plate 201. Mounting blocks 204 are provided on both sides of the snap-fit ​​rings 202. At the same time, multiple snap-fit ​​grooves 203 are provided on one side of the snap-fit ​​rings 202. The snap-fit ​​grooves 203 of the two snap-fit ​​rings 202 are snapped into the snap-fit ​​blocks 105 inside the mounting groove 104. The two snap-fit ​​rings 202 can be bolted together by installing fixing bolts 205 at the mounting block 204, so that the snap-fit ​​rings 202 can be firmly fixed in the mounting groove 104.

[0029] Working principle: The upper part of the outer surface of the main body 1 is provided with a snap-fit ​​module 2. When the device is connected to other pipes, the snap-fit ​​module 2 can snap the two devices together, so that the two devices cannot rotate after connection. The main structure of the main body 1 includes a connecting pipe 101. The upper end of the connecting pipe 101 is provided with a second fixing pipe 103, and the lower end of the connecting pipe 101 is provided with a first fixing pipe 102. The outer surfaces of the first fixing pipe 102 and the second fixing pipe 103 are both provided with mounting grooves 104. The mounting grooves 104 are provided with snap-fit ​​blocks 105, so that the snap-fit ​​module 2 can be snapped into the mounting grooves 104.

[0030] The main body 1 is made of corrosion-resistant alloy and high-strength carbon steel. The corrosion-resistant alloy and high-strength carbon steel are fixed together by hot rolling process. The corrosion-resistant alloy is set in the inner layer and is in direct contact with the medium, undertaking the functions of corrosion prevention and wear resistance. The outer layer of high-strength carbon steel is responsible for bearing the pipeline pressure and mechanical load.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bimetallic composite leak resistant reducing pipe fitting comprising a body (1) characterised in that: The outer surface of the main body (1) is provided with a clamping module (2) at the upper end, the main body (1) is made of corrosion-resistant alloy and high-strength carbon steel, the corrosion-resistant alloy accounts for 30% of the whole and is arranged in the inner layer, and the high-strength carbon steel accounts for 70% of the whole and is arranged in the outer layer, the main body (1) comprises a connecting pipe (101); The lower end surface of the connecting pipe (101) is fixedly provided with a first fixed pipe (102), the upper end surface of the connecting pipe (101) is fixedly provided with a second fixed pipe (103), the lower end surface of the first fixed pipe (102) is fixedly provided with a threaded cover (110), the inner surface of the threaded cover (110) is fixedly provided with a sealing ring (111) at the lower end, the upper end surface of the second fixed pipe (103) is fixedly provided with a conical pipe (106), the clamping module (2) comprises two support plates (201), and the upper and lower ends of each of the two support plates (201) are fixedly provided with a clamping ring (202).

2. A bimetallic composite leak resistant reducing pipe fitting according to claim 1, wherein: The outer surface of the first fixed pipe (102) and the second fixed pipe (103) is provided with a mounting groove (104), and the inner bottom surface of each of the two mounting grooves (104) is fixedly provided with a clamping block (105).

3. The bimetallic composite leak resistant reducing pipe fitting of claim 1, wherein: The lower concave surface of the first fixed pipe (102) is fixedly provided with a sealing rubber pad (109).

4. The bimetallic composite leak resistant reducing pipe fitting of claim 1, wherein: The sealing ring (111) is tapered inside, which is narrow at the top and wide at the bottom.

5. The bimetallic composite leak resistant reducing pipe fitting of claim 1, wherein: The upper end surface of the conical pipe (106) is fixedly provided with a threaded pipe (107), and the upper end surface of the threaded pipe (107) is fixedly provided with a rubber ring (108).

6. A bimetallic composite leak resistant reducing pipe fitting according to claim 1, wherein: The front and rear ends of each of the four clamping rings (202) are fixedly provided with a mounting block (204), and the mounting block (204) is threadedly sleeved with a fixed bolt (205) on one side.

7. The bimetallic composite leak resistant reducing pipe fitting of claim 1, wherein: The opposite side of each of the four clamping rings (202) is provided with a plurality of clamping grooves (203).

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