Thin-wall metal pipeline connection sealing ring and pipeline structure

Abstract

The utility model discloses a thin-wall metal pipeline connection sealing ring and a pipeline structure, and aims to solve the problems that an O-shaped sealing ring is adopted when an existing thin-wall metal pipe fitting is installed and crimped, a gap between the pipe fitting and a pipe cannot be fully filled well, and water leakage is easily caused. The sealing ring comprises an annular elastic rubber ring, the cross section of the elastic rubber ring comprises a first corner, a second corner and a third corner, the first corner is in a bullet shape, the second corner and the third corner are both of a round corner structure, the included angle of the second corner and the included angle of the third corner are both 50-70 degrees, and a convex circle is formed on the side length between the second corner and the third corner. The sealing ring with the specific triangular section is adopted, resistance during insertion is reduced, the second thin-walled pipe and the first thin-walled pipe are good in socket performance and convenient to install, a gap between the second thin-walled pipe and the first thin-walled pipe can be fully filled after solidification, installation failure cannot be caused, and the service life of the second thin-walled pipe and the first thin-walled pipe is prolonged. And the problem of water leakage after crimping is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of thin-walled metal pipe sealing connection, and particularly relates to a thin-walled metal pipe connection sealing ring and a pipe structure. Background Art

[0002] In metal water supply and drainage, pipes are "green pipes in the 21st century", which have the characteristics of pollution-free, high strength, long service life, small fluid resistance, low comprehensive cost, beauty, etc. They are ideal alternative products to other types of pipes and will also be the ultimate choice for pipes in water supply and drainage. They are mainly used for cold and hot water, direct drinking water supply pipes, and are also applicable to the construction of civil low-pressure fluid transportation metal pipe projects such as heating, air conditioning, fire protection, gas, and drainage. They can also be applied to the construction of low-pressure fluid transportation pipe projects in industries such as medicine, beverage, food, and chemical industry.

[0003] With the wide popularization of thin-walled metal pipes / fittings in modern water supply and drainage, since an O-shaped sealing ring is used when two pipe fittings are installed and crimped, the gap between the pipe fittings and the pipes cannot be well and fully filled. Usually, there will be a certain probability of leakage points after crimping, which will not only lead to installation failure but also cause water leakage problems. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a thin-walled metal pipe connection sealing ring and a pipe structure. The sealing ring aims to solve the problem that when the existing thin-walled metal pipe fittings are installed and crimped with an O-shaped sealing ring, the gap between the pipe fittings and the pipes cannot be well and fully filled. Usually, there will be a certain probability of leakage points after crimping, which will not only lead to installation failure but also cause water leakage problems.

[0006] (2) Technical Solutions

[0007] To solve the above technical problems, the utility model provides such a thin-walled metal pipe connection sealing ring. The sealing ring includes an annular elastic rubber ring. The cross-section of the elastic rubber ring includes angle one, angle two, and angle three. Angle one is in a bullet head shape, and both angle two and angle three are rounded corner structures. The included angles between angle two and angle three are both 50 - 70°, and a convex circle is formed on the side length between angle two and angle three.

[0008] Preferably, the included angles between angle two and angle three are both 60°.

[0009] Furthermore, the elastic rubber ring is made of one or more materials mixed from fluororubber, chlorinated butyl rubber, nitrile rubber, or silicone rubber.

[0010] Furthermore, Angle 1 is located at the outer diameter of the elastic rubber ring. The side length between Angle 1 and Angle 2 is a straight edge, and the side length between Angle 1 and Angle 3 is a straight edge.

[0011] A thin-walled metal pipe structure includes the thin-walled metal pipe connection sealing ring described above, and also includes a first thin-walled pipe and a second thin-walled pipe. An annular groove is provided on the inner wall of the first thin-walled pipe. The sealing ring is arranged inside the annular groove. The second thin-walled pipe is inserted into the first thin-walled pipe and contacts the convex circle between Angle 2 and Angle 3.

[0012] Furthermore, the first thin-walled pipe and the second thin-walled pipe are connected by ring clamp sealed pipe fittings or double crimp pipe fittings.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] In the present utility model, by inserting the second thin-walled pipe into the first thin-walled pipe, during this process, due to the existence of the convex circle between Angle 2 and Angle 3, the resistance during insertion is reduced, so that the socket performance between the second thin-walled pipe and the first thin-walled pipe is better, which is convenient for installation.

[0016] During the consolidation process of the second thin-walled pipe and the first thin-walled pipe in the present utility model, Angle 1 of the elastic rubber ring is first compressed. At this time, the elastic rubber ring deforms, and at the same time, both sides of the elastic rubber ring expand, so as to fully fill the gap between the second thin-walled pipe and the first thin-walled pipe, and it will not lead to installation failure and avoid the problem of water leakage after crimping. Description of the drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of the insertion of the second thin-walled pipe and the first thin-walled pipe of the present utility model.

[0018] Figure 2 is an installation structural schematic diagram of the sealing ring of the present utility model.

[0019] Figure 3 is a three-dimensional structural schematic diagram of the sealing ring of the present utility model.

[0020] Figure 4 is a sectional structural schematic diagram of the sealing ring of the present utility model.

[0021] Figure 5 is the Figure 4 enlarged structural schematic diagram of part A in the present utility model.

[0022] The reference signs in the drawings are: 1, elastic rubber ring; 2, Angle 1; 3, Angle 2; 4, Angle 3; 5, convex circle; 6, first thin-walled pipe; 7, second thin-walled pipe; 8, annular groove. Detailed implementation manners

[0023] This specific embodiment is a sealing ring for connecting thin-walled metal pipes. Its structural schematic diagram is as Figures 1-5 shown. The sealing ring includes an annular elastic rubber ring 1. The cross-section of the elastic rubber ring 1 includes angle one 2, angle two 3, and angle three 4. Angle one 2 is in a warhead shape, and both angle two 3 and angle three 4 are rounded structures. The included angles between angle two 3 and angle three 4 are both 50 - 70°. A convex circle 5 is formed on the side length between angle two 3 and angle three 4. It can be understood that the side length between angle two 3 and angle three 4 is an arc structure, which reduces the resistance during insertion.

[0024] As Figure 4 and Figure 5 shown: In this embodiment, the included angles between angle two 3 and angle three 4 are both 60°. By setting it like this, the angles of the three corners of the cross-section of the elastic rubber ring 1 are the same, which makes processing and measurement more convenient.

[0025] In this embodiment, the elastic rubber ring 1 is made of a mixture of one or more materials selected from fluororubber, chlorobutyl rubber, nitrile rubber, or silicone rubber.

[0026] By setting it like this, the elastic rubber ring 1 has better elasticity and can fully fill the gap between the second thin-walled pipe 7 and the first thin-walled pipe 6.

[0027] As Figure 4 and Figure 5 shown: In this embodiment, angle one 2 is located at the outer diameter of the elastic rubber ring 1. The side length between angle one 2 and angle two 3 is a straight edge, and the side length between angle one 2 and angle three 4 is a straight edge. By setting it like this, processing is more convenient.

[0028] A thin-walled metal pipe structure, as Figure 1 , Figure 2 and Figure 3 shown: It includes the above-mentioned sealing ring for connecting thin-walled metal pipes, the first thin-walled pipe 6, and the second thin-walled pipe 7. An annular groove 8 is provided on the inner wall of the first thin-walled pipe 6. The sealing ring is arranged inside the annular groove 8. The second thin-walled pipe 7 is inserted into the first thin-walled pipe 6 and contacts the convex circle 5 between angle two 3 and angle three 4.

[0029] By setting it like this, the elastic rubber ring 1 is placed into the annular groove 8, and then the second thin-walled pipe 7 is inserted into the first thin-walled pipe 6. During this process, due to the existence of the convex circle 5 between angle two 3 and angle three 4, the resistance during insertion is reduced, and the socket performance between the second thin-walled pipe 7 and the first thin-walled pipe 6 is better, which is convenient for installation.

[0030] As Figure 1 and Figure 2As shown in the figure: In this embodiment, the first thin-walled tube 6 and the second thin-walled tube 7 are connected by a ring clamp sealing fitting or a double crimping fitting. This setting can well crimp and fix the first thin-walled tube 6 and the second thin-walled tube 7 together.

[0031] Working principle: First, place the elastic rubber ring 1 into the annular groove 8, and then insert the second thin-walled tube 7 into the first thin-walled tube 6. During this process, due to the presence of the convex circle 5 between the angle two 3 and the angle three 4, the resistance during insertion is reduced, so that the socket performance between the second thin-walled tube 7 and the first thin-walled tube 6 is better, facilitating installation. Then, use a crimping device to crimp the first thin-walled tube 6 at the annular groove 8 until the second thin-walled tube 7 and the first thin-walled tube 6 are fixedly connected. During the fixation process, the angle one 2 of the elastic rubber ring 1 is first compressed. At this time, the elastic rubber ring 1 deforms, and at the same time, both sides of the elastic rubber ring 1 expand, so as to fully fill the gap between the second thin-walled tube 7 and the first thin-walled tube 6, preventing installation failure and avoiding water leakage problems after crimping. It can be used for cold water, hot water, direct drinking water, fire protection, gas, medical gas transportation, etc. Therefore, by designing a specific triangular cross-section sealing ring and adopting an advanced production process, it can meet higher installation requirements of customers, improve the adaptability of product installation, and effectively enhance the product competitiveness.

[0032] All technical features in this embodiment can be freely combined according to actual needs.

[0033] The above embodiments are the preferred implementation solutions of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A connecting sealing ring for thin-walled metal pipes, the sealing ring comprising an annular elastic rubber ring (1), characterized in that: The cross-section of the elastic rubber ring (1) includes angle one (2), angle two (3), and angle three (4). Angle one (2) is in the shape of a warhead. Both angle two (3) and angle three (4) are rounded structures. The included angles between angle two (3) and angle three (4) are both 50 - 70°. A convex circle (5) is formed on the side length between angle two (3) and angle three (4).

2. The thin-wall metal pipe connection sealing ring according to claim 1, characterized in that, The included angles between angle two (3) and angle three (4) are both 60°.

3. The thin-walled metal pipe connection sealing ring according to claim 2, wherein Angle one (2) is located at the outer diameter of the elastic rubber ring (1). The side length between angle one (2) and angle two (3) is a straight edge. The side length between angle one (2) and angle three (4) is a straight edge.

4. A thin-walled metal pipe structure, characterized in that, It includes the thin-walled metal pipe connection sealing ring according to any one of claims 1 - 3, and also includes a first thin-walled pipe (6) and a second thin-walled pipe (7). An annular groove (8) is provided on the inner wall of the first thin-walled pipe (6). The sealing ring is arranged inside the annular groove (8). The second thin-walled pipe (7) is inserted inside the first thin-walled pipe (6) and contacts the convex circle (5) between angle two (3) and angle three (4).

5. The thin-walled metal pipe structure according to claim 4, characterized in that, The first thin-walled pipe (6) and the second thin-walled pipe (7) are connected by a ring clamp sealing type pipe fitting or a double crimping pipe fitting.

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