Water supply socket steel pipe connecting structure

Abstract

The utility model discloses a water supply socket steel pipe connecting structure which comprises a first steel pipe and a second steel pipe, the first steel pipe is provided with a socket, the second steel pipe is provided with a socket, the socket of the first steel pipe is provided with a threaded groove, and the socket of the second steel pipe is provided with a threaded pipe matched with the threaded groove. A first connecting ring is arranged at the position, close to the second steel pipe, of the first steel pipe, a second connecting ring is arranged at the position, close to the first steel pipe, of the second steel pipe, a plurality of bolts are arranged on the first connecting ring in a penetrating mode, and nuts tightly attached to the second connecting ring are arranged on the bolts in a matched threaded connection mode. And a gasket is arranged between the first connecting circular ring and the second connecting circular ring. Compared with the prior art, the connecting structure has the advantages that the first steel pipe and the second steel pipe are preliminarily connected through the matching of the threaded pipe and the threaded groove, and then the firmness and the stability of the connection are ensured through multi-point fixation by adopting a fastening system of the bolt, the nut and the gasket.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply socket steel pipes, in particular to a water supply socket steel pipe connection structure. Background Art

[0002] A bell and spigot pipe refers to a pipe that is made into a socket and a spigot at both ends (the spigot generally does not need to be specially made) in order to connect pipes or pipe fittings, or to branch pipes. The spigot is inserted into the socket and then the joint is sealed.

[0003] The existing water supply socket steel pipe connection structure is connected by setting a socket at one end of the steel pipe and a plug at the other end, and inserting the plug into the socket. This connection method is simple and reliable, but the connection is prone to loosening and leakage, so a water supply socket steel pipe connection structure with a firm connection is needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the connection is easy to loosen and leak, and a water supply socket steel pipe connection structure with firm connection is provided.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a water supply socket steel pipe connection structure, including a first steel pipe and a second steel pipe, the first steel pipe is provided with a socket, the second steel pipe is connected to the first steel pipe through the socket through the socket, the first steel pipe socket is provided with a threaded groove, the second steel pipe socket is provided with a threaded pipe matching the threaded groove, the first steel pipe is provided with a first connecting ring near the second steel pipe, the second steel pipe is provided with a second connecting ring near the first steel pipe, a plurality of bolts are penetrated through the first connecting ring, a plurality of through holes matching the bolts are penetrated through the second connecting ring, the bolts penetrate the first connecting ring and the through holes and extend to one side of the second connecting ring, a nut is provided on the bolt that is threadedly connected to the second connecting ring, and a washer is provided between the first connecting ring and the second connecting ring.

[0006] As an improvement, a first rubber ring is provided on one side of the first connecting ring close to the second connecting ring, and a second rubber ring matching the first rubber ring is provided on one side of the second connecting ring close to the first connecting ring. One end of the first rubber ring is a fixed end and the other end is a free end. The fixed end is connected to the end of the socket, and the free end can be turned outward out of the socket and turned inward into the socket. The second rubber ring is sleeved on the free end. The first rubber ring is made of a rubber material with good elasticity. The fixed end is fixedly connected to the end of the socket by bonding or hot melting, and the free end has good elasticity and flipability.

[0007] As an improvement, the second rubber ring is made of a rubber material that swells when exposed to water, and its outer diameter is smaller than the outer diameter of the free end of the first rubber ring, so that it can be sleeved on the free end of the first rubber ring for sealing.

[0008] As an improvement, a threaded structure is provided at the other end of the first steel pipe to be connected to another steel pipe, so as to facilitate connection at the other end of the first steel pipe.

[0009] The advantages of the utility model compared with the prior art are: firstly, the first steel pipe and the second steel pipe are preliminarily connected by cooperating with the threaded pipe and the threaded groove, and then a fastening system of bolts, nuts and washers is adopted to ensure the firmness and stability of the connection through multi-point fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the first stereoscopic diagram of a water supply socket steel pipe connection structure of the utility model.

[0011] Figure 2 It is a second stereoscopic diagram of a water supply socket steel pipe connection structure of the utility model.

[0012] Figure 3 The utility model is a cross-sectional view of a water supply socket steel pipe connection structure.

[0013] Figure 4 yes Figure 3 Schematic diagram of the structure of part A.

[0014] As shown in the figure: 1. first steel pipe; 2. second steel pipe; 3. socket; 4. plug; 5. threaded groove; 6. threaded pipe; 7. first connecting ring; 8. second connecting ring; 9. bolt; 10. through hole; 11. nut; 12. washer; 13. first rubber ring; 14. second rubber ring. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] Combined with Figure 1-4 As shown, a water supply socket steel pipe connection structure comprises a first steel pipe 1 and a second steel pipe 2, wherein the first steel pipe 1 is provided with a socket 3, the second steel pipe 2 is provided with a spigot 4, the second steel pipe 2 penetrates the socket 3 through the spigot 4 and is connected to the first steel pipe 1, a thread groove 5 is provided at the socket 3 of the first steel pipe 1, a thread structure is provided at the other end of the first steel pipe 1 and is connected to another steel pipe, and a threaded pipe 6 matching the thread groove 5 is provided at the spigot 4 of the second steel pipe 2;

[0017] Through the above structure, the socket 4 of the second steel pipe 2 is inserted into the socket 3 of the first steel pipe 1, and the threaded pipe 6 is connected to the threaded structure of the first steel pipe 1, completing the preliminary connection between the first steel pipe 1 and the second steel pipe 2;

[0018] The first steel pipe 1 is provided with a first connecting ring 7 near the second steel pipe 2, and the second steel pipe 2 is provided with a second connecting ring 8 near the first steel pipe 1. The first connecting ring 7 is penetrated by a plurality of bolts 9, and the second connecting ring 8 is penetrated by a plurality of through holes 10 matching the bolts 9. The bolts 9 penetrate the first connecting ring 7 and the through holes 10 and extend to one side of the second connecting ring 8. The bolts 9 are matched with a nut 11 threadedly connected to the second connecting ring 8. A washer 12 is provided between the first connecting ring 7 and the second connecting ring 8. A first rubber ring 13 is provided on one side of the first connecting ring 7 close to the second connecting ring 8. The second connecting ring 8 is provided with a second rubber ring 14 matched with the first rubber ring 13 on one side close to the first connecting ring 7. One end of the first rubber ring 13 is a fixed end and the other end is a free end. The fixed end is connected to the end of the socket 3, and the free end can be turned outward out of the socket 3 and turned inward into the socket 3. The second rubber ring 14 is sleeved on the free end. The first rubber ring 13 is made of a rubber material with good elasticity. The fixed end is fixedly connected to the end of the socket 3 by bonding or hot melting. The free end has good elasticity and flipability. The second rubber ring 14 is made of a rubber material that swells in water, and its outer diameter is smaller than the outer diameter of the free end of the first rubber ring 13.

[0019] Through the above structure, when the first steel pipe 1 and the second steel pipe 2 are connected through the threaded pipe 6 and the threaded groove 5, the free end of the first rubber ring 13 is first turned outward from the socket 3, and then the socket 4 of the second steel pipe 2 is inserted into the socket 3 of the first steel pipe 1, so that the plug and the socket 3 are interference fit, and then the second rubber ring 14 is sleeved on the free end of the first rubber ring 13, and finally the free end of the first rubber ring 13 is turned inward into the socket 3, so that it fits tightly with the outer wall of the socket 4, and then the gasket 12 is directly placed on the first connecting ring and the second connecting ring 8 to complete the threaded pipe 6 and the threaded groove. 5, the first connecting ring 7 is tightly attached to the second connecting ring 8, a bolt 9 is used to penetrate the first connecting ring 7 and extend to the other side of the second connecting ring 8 through the through hole 10, a nut 11 is used to connect with the bolt 9 and tightly attached to the outer wall of the second connecting ring 8 to complete the connection operation; when water is passed through the water supply socket steel pipe connection structure, the second rubber ring 14 expands when it encounters water, and radially tightens the first rubber ring 13 to achieve sealing of the socket 4 and the socket 3. At the same time, after the free end of the first rubber ring 13 is turned inward into the socket 3, its end can be against the inner wall of the socket 3, thereby increasing the stability of the connection and preventing water leakage.

[0020] During the specific implementation of the utility model, the free end of the first rubber ring 13 is first turned outwards out of the socket 3, and then the socket 4 of the second steel pipe 2 is inserted into the socket 3 of the first steel pipe 1, so that the plug and the socket 3 are interference fit, and then the second rubber ring 14 is sleeved on the free end of the first rubber ring 13, and finally the free end of the first rubber ring 13 is turned inwards into the socket 3, so that it fits tightly with the outer wall of the socket 4, and then the gasket 12 is directly placed between the first connecting ring and the second connecting ring 8, and the threaded pipe 6 is connected to the threaded structure of the first steel pipe 1, so as to complete the preliminary connection between the first steel pipe 1 and the second steel pipe 2; the bolt 9 is used to penetrate the first connecting ring 7 and extend to the other side of the second connecting ring 8 through the through hole 10, and the nut 11 is used to connect with the bolt 9 and fit tightly against the outer wall of the second connecting ring 8 to complete the connection operation;

[0021] When water flows through the water supply socket steel pipe connection structure, the second rubber ring 14 swells when it meets water and radially tightens the first rubber ring 13 to achieve sealing of the plug 4 and the socket 3. At the same time, after the free end of the first rubber ring 13 is turned inward into the socket 3, its end can abut against the inner wall of the socket 3, thereby increasing the stability of the connection and preventing water leakage.

[0022] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A water supply bell-and-spigot steel pipe connection structure, comprising a first steel pipe (1) and a second steel pipe (2), wherein the first steel pipe (1) is provided with a socket (3), the second steel pipe (2) is provided with a spigot (4), the second steel pipe (2) penetrates the socket (3) through the spigot (4) to be connected to the first steel pipe (1), characterized in that: The socket (3) of the first steel pipe (1) is provided with a thread groove (5), the socket (4) of the second steel pipe (2) is provided with a threaded pipe (6) matching the thread groove (5), the first steel pipe (1) is provided with a first connecting ring (7) near the second steel pipe (2), the second steel pipe (2) is provided with a second connecting ring (8) near the first steel pipe (1), the first connecting ring (7) is penetrated by a plurality of bolts (9), the second connecting ring (8) is penetrated by a plurality of through holes (10) matching the bolts (9), the bolts (9) penetrate the first connecting ring (7) and the through holes (10) and extend to one side of the second connecting ring (8), the bolts (9) are matched with a nut (11) threadedly connected to the second connecting ring (8), and a washer (12) is provided between the first connecting ring (7) and the second connecting ring (8).

2. A water supply socket steel pipe connection structure according to claim 1, characterized in that: A first rubber ring (13) is provided on one side of the first connecting ring (7) close to the second connecting ring (8), and a second rubber ring (14) matching the first rubber ring (13) is provided on one side of the second connecting ring (8) close to the first connecting ring (7). One end of the first rubber ring (13) is a fixed end and the other end is a free end. The fixed end is connected to the end of the socket (3), and the free end can be turned outward from the socket (3) and turned inward into the socket (3). The second rubber ring (14) is sleeved on the free end.

3. A water supply socket steel pipe connection structure according to claim 2, characterized in that: The second rubber ring (14) is made of a rubber material that swells in contact with water, and its outer diameter is smaller than the outer diameter of the free end of the first rubber ring (13).

4. A water supply socket steel pipe connection structure according to claim 1, characterized in that: The other end of the first steel pipe (1) is provided with a threaded structure for connection with another steel pipe.

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