Sealing rubber ring for water pipe connection

Abstract

The utility model relates to a sealing rubber ring for water pipe connection, which comprises a connecting pipe, a shaft shoulder is mounted on the outer surface of the middle of the connecting pipe, first sealing rings are arranged on two side surfaces of the shaft shoulder, and two second sealing rings are symmetrically arranged on two sides of the shaft shoulder on the outer surface of the connecting pipe; a first inner cavity is formed in the first sealing ring, a second inner cavity is formed in the second sealing ring, and the first inner cavity communicates with the second inner cavity. The two ends of the connecting pipe are inserted into the two water pipes to be connected correspondingly, the two pipes extrude the first sealing ring, air in the first inner cavity can be extruded into the second inner cavity, the second sealing ring is made to expand, and therefore the first rubber abutting ring can be driven to extrude the inner walls of the pipes, and second sealing is achieved; therefore, the double-sealing effect can be achieved, and the sealing effect is better.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring technology, specifically a sealing rubber ring for water pipe connections. Background Technology

[0002] A sealing ring is a ring-shaped component used to seal joints and prevent fluid or gas leakage. It is typically made of elastic material and fits tightly between two or more components, ensuring the system's tightness and integrity. In the field of water pipe connections, ensuring the sealing performance of the joints is crucial to prevent fluid leakage and ensure the normal operation of the system. Traditional water pipe sealing rings have simple structures and single functions, generally employing a single sealing method, resulting in poor sealing performance and difficulty in coping with complex and variable operating conditions. Utility Model Content

[0003] The purpose of this invention is to provide a sealing rubber ring for water pipe connections, which effectively solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution.

[0005] A sealing rubber ring for water pipe connection includes a connecting pipe. A shoulder is installed on the outer surface of the connecting pipe at the middle position. A first sealing ring is provided on both sides of the shoulder. Two second sealing rings are symmetrically arranged on the outer surface of the connecting pipe on both sides of the shoulder. The first sealing ring has a first inner cavity, and the second sealing ring has a second inner cavity. The first inner cavity and the second inner cavity are interconnected.

[0006] Furthermore, the outer surface of the second sealing ring is provided with a plurality of first rubber contact rings, the cross-section of which is a semi-circular structure.

[0007] Furthermore, guide rings are installed at both ends of the connecting pipe along its length, and the guide rings have a trumpet-shaped structure.

[0008] Furthermore, a second rubber contact ring is provided on the outer surface of the guide ring, and the cross-section of the second rubber contact ring is a semi-circular structure.

[0009] Furthermore, both the first and second sealing rings are made of nitrile rubber.

[0010] Furthermore, the outer surface of the first sealing ring has a wavy structure with varying heights.

[0011] Furthermore, the connecting pipe and the guide ring are connected by welding, and both the connecting pipe and the guide ring are made of stainless steel.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0013] 1. This utility model inserts the two ends of the connecting pipe into the two water pipes to be connected. The compression of the first sealing ring by the two pipes can squeeze the air inside the first inner cavity into the second inner cavity and cause the second sealing ring to expand. This can drive the first rubber contact ring to compress against the inner wall of the pipe, thus achieving a second seal. This achieves a double seal with a better sealing effect. Furthermore, the water inside the pipes is connected through the inside of the connecting pipe, which reduces the impact on the connection between the two pipes and further reduces the possibility of leakage at the connection.

[0014] 2. This utility model guides the water in the pipe through the guide ring, allowing it to pass smoothly through the inside of the connecting pipe and reducing the amount of water entering the gap between the guide ring and the inner wall of the pipe. This reduces the impact of the water flow on the second sealing ring and the first rubber abutment ring, thus ensuring the sealing effect. Furthermore, the second rubber abutment ring can also act as a third seal, further reducing leakage and resulting in a good sealing effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front view structural diagram of the present utility model;

[0017] Figure 3 This is a frontal cross-sectional view of the present invention.

[0018] Figure 4 This is a schematic diagram of the usage state of this utility model.

[0019] In the figure: 100, connecting pipe; 101, shoulder; 102, first sealing ring; 103, second sealing ring; 104, first inner cavity; 105, second inner cavity; 200, first rubber abutment ring; 300, guide ring; 301, second rubber abutment ring. Detailed Implementation

[0020] 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.

[0021] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0022] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0023] Please see Figures 1-4 This utility model provides a sealing rubber ring for water pipe connection, including a connecting pipe 100. A shoulder 101 is installed on the outer surface of the middle part of the connecting pipe 100. A first sealing ring 102 is provided on both sides of the shoulder 101. Two second sealing rings 103 are symmetrically arranged on both sides of the shoulder 101 on the outer surface of the connecting pipe 100. A first inner cavity 104 is opened inside the first sealing ring 102, and a second inner cavity 105 is opened inside the second sealing ring 103. The first inner cavity 104 and the second inner cavity 105 are interconnected.

[0024] During installation, the two ends of the connecting pipe 100 are inserted into the two water pipes to be connected. After the two pipes are tightened together, pressure is applied to the first sealing rings 102 on both sides to compress them tightly and form the first seal. When the first sealing ring 102 is compressed, the air inside the first inner cavity 104 is squeezed into the second inner cavity 105, and the second sealing ring 103 expands, thereby forming a second seal between the connecting pipe 100 and the inner wall of the pipe, resulting in a better overall sealing effect. Even if one seal fails, it can still prevent leakage. Furthermore, the water inside the pipe is connected through the inside of the connecting pipe 100, thereby reducing the impact on the connection between the two pipes and further reducing the possibility of leakage at the connection.

[0025] Preferably, the outer surface of the second sealing ring 103 is provided with a plurality of first rubber contact rings 200, and the cross-section of the first rubber contact rings 200 is a semi-circular structure.

[0026] When the second sealing ring 103 expands, it causes the first rubber abutment ring 200 to be squeezed against the inner wall of the pipe. The first rubber abutment ring 200 deforms and fits tightly against the inner wall of the pipe to form a seal. There are multiple first rubber abutment rings 200. Since the second sealing ring 103 expands outward evenly, each first rubber abutment ring 200 can play an individual sealing role, resulting in a better sealing effect.

[0027] Preferably, guide rings 300 are installed at both ends of the connecting pipe 100 along its length, and the guide rings 300 have a trumpet-shaped structure.

[0028] The guide ring 300 guides the water in the pipe, allowing it to pass smoothly through the inside of the connecting pipe 100. This reduces the amount of water entering the gap between the guide ring 300 and the inner wall of the pipe, thus reducing the impact of the water flow on the second sealing ring 103 and the first rubber contact ring 200, thereby ensuring the sealing effect.

[0029] Preferably, the outer surface of the guide ring 300 is provided with a second rubber contact ring 301, and the cross-section of the second rubber contact ring 301 is a semi-circular structure.

[0030] The second rubber contact ring 301 provides a third sealing effect, further reducing leakage and achieving a good sealing effect.

[0031] Preferably, both the first sealing ring 102 and the second sealing ring 103 are made of nitrile rubber.

[0032] Nitrile rubber has good abrasion resistance and tear resistance, and can maintain its shape and structural stability well after the internal cavity is opened.

[0033] Preferably, the outer surface of the first sealing ring 102 has a wavy structure with varying heights.

[0034] The wave-shaped structure allows the first sealing ring 102 to fold inward in an orderly manner when compressed, allowing air to be better squeezed into the second inner cavity 105. Furthermore, when compressed, it can disperse concentrated stress to various peaks and troughs, avoiding excessive local stress that could cause the first sealing ring 102 to crack or be damaged, thus extending its service life.

[0035] Preferably, the connecting pipe 100 and the guide ring 300 are connected by welding, and both the connecting pipe 100 and the guide ring 300 are made of stainless steel.

[0036] Stainless steel not only has high strength, which can improve the firmness of the connection between two pipes, but also has good corrosion resistance, allowing it to be used in water for a long time without rusting, and has a long service life.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sealing rubber ring for water pipe connections, comprising a connecting pipe (100), characterized in that: A shoulder (101) is installed on the outer surface of the middle part of the connecting pipe (100). A first sealing ring (102) is provided on both sides of the shoulder (101). Two second sealing rings (103) are symmetrically arranged on the outer surface of the connecting pipe (100) on both sides of the shoulder (101). The first sealing ring (102) has a first inner cavity (104) inside, and the second sealing ring (103) has a second inner cavity (105) inside, and the first inner cavity (104) and the second inner cavity (105) are interconnected.

2. The sealing rubber ring for water pipe connection according to claim 1, characterized in that: The outer surface of the second sealing ring (103) is provided with a plurality of first rubber contact rings (200), and the cross-section of the first rubber contact ring (200) is a semi-circular structure.

3. The sealing rubber ring for water pipe connection according to claim 1, characterized in that: Both ends of the connecting pipe (100) along its length are equipped with guide rings (300), which are funnel-shaped structures.

4. A sealing rubber ring for water pipe connection according to claim 3, characterized in that: The outer surface of the guide ring (300) is provided with a second rubber contact ring (301), and the cross-section of the second rubber contact ring (301) is a semi-circular structure.

5. A sealing rubber ring for water pipe connection according to claim 1, characterized in that: The first sealing ring (102) and the second sealing ring (103) are both made of nitrile rubber.

6. A sealing rubber ring for water pipe connection according to claim 1, characterized in that: The outer surface of the first sealing ring (102) has a wavy structure with high and low undulations.

7. A sealing rubber ring for water pipe connection according to claim 3, characterized in that: The connecting pipe (100) and the guide ring (300) are connected by welding. Both the connecting pipe (100) and the guide ring (300) are made of stainless steel.

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