Socket and spigot type sealing flange connection joint

Abstract

The utility model belongs to the field of pipeline joints, and particularly relates to a socket type sealing flange connection joint which comprises a hollow socket joint body, and an annular groove used for fixing a hoop is formed in the end of a continuous fiber reinforced thermoplastic pipeline through the mold pressing cooling forming technology. An annular rubber part is arranged on the inner wall of the hollow bell and spigot joint body, one end of the continuous fiber reinforced thermoplastic pipeline is inserted into the hollow bell and spigot joint body, and the end face of the continuous fiber reinforced thermoplastic pipeline makes contact with the annular rubber part. The hollow socket-and-spigot joint body is connected with the end of the continuous fiber reinforced thermoplastic pipeline through the flange and is fixed by the hoop, so that the continuous fiber reinforced thermoplastic pipeline is prevented from sliding down from the hollow socket-and-spigot joint body; the elastic rubber pad is arranged to enable the end face of the pipeline to be in tight contact with the interior of the hollow socket joint body, the problem that the pipeline needs to be sealed before being installed and used is solved, the whole installation procedure is simple, and permeation of transportation media can be effectively avoided.

Description

Technical Field

[0001] The utility model belongs to a connecting joint of a continuous fiber reinforced thermoplastic pipeline, in particular to a socket-and-spigot type sealing flange connecting joint. Background Art

[0002] Continuous fiber reinforced thermoplastic composite pipe is a new type of pipe that combines the advantages of thermoplastic materials and continuous fibers. It has the characteristics of high strength, light weight, corrosion resistance and wear resistance. However, in the process of connecting pipes or pipes with other equipment, the cross section of the pipe is easily penetrated by the medium transported by the pipe, and at the same time, there is the problem that the front face of the continuous fiber reinforced thermoplastic pipe must be sealed before installation and use. The sealing is mainly to prevent medium leakage, ensure the sealing of the system, maintain the internal pressure of the pipe, etc., but the whole operation is complicated and the final use effect cannot be guaranteed.

[0003] Based on this, a socket-type sealing flange connection joint is studied and involved. Utility Model Content

[0004] The utility model provides a socket-type sealing flange connection joint, the joint includes a hollow socket joint body, the hollow socket joint body is connected to the end of a continuous fiber reinforced thermoplastic pipe through a flange, the end of the continuous fiber reinforced thermoplastic pipe is made by a compression cooling molding process to form an annular groove for fixing a clamp, the flange head is fixed by a clamp, which can effectively avoid the possibility of the continuous fiber reinforced thermoplastic pipe slipping from the hollow socket joint body, and the flange head is further fixed by the clamp, which can further strengthen the connection tightness between the pipe and the pipe, and between the pipe and other equipment, prevent medium leakage, and further strengthen the sealing of the system. At the same time, an annular rubber part is provided on the inner wall of the hollow socket joint body, and the elastic effect of the annular rubber part effectively solves the problem that the continuous fiber reinforced thermoplastic pipe must be sealed before installation and use.

[0005] The utility model is realized by the following technical solutions:

[0006] A socket-type sealing flange connection joint, the joint comprises a hollow socket joint body, the hollow socket joint body is connected to the end of a continuous fiber reinforced thermoplastic pipe through a flange; the inner wall of the hollow socket joint body is provided with an annular rubber piece, one end of the continuous fiber reinforced thermoplastic pipe is inserted into the hollow socket joint body, and the end face of the continuous fiber reinforced thermoplastic pipe is in contact with the annular rubber piece.

[0007] Furthermore, the annular rubber member is an elastic rubber pad.

[0008] Furthermore, the end of the continuous fiber reinforced thermoplastic pipe is manufactured by a compression molding process to form an annular groove for fixing the clamp.

[0009] Furthermore, the flange head of the flange is fixed by a clamp.

[0010] Furthermore, the clamp is located on the outside of the tube body of the hollow socket joint body and is fixed by bolts.

[0011] Furthermore, the clamp surrounds the outer circumference of the annular groove.

[0012] Furthermore, the flange is an international steel flange.

[0013] Furthermore, the flange is formed by close machining of a C7 steel bar.

[0014] Furthermore, the specifications of the continuous fiber reinforced thermoplastic pipe include a diameter of 50mm-3000mm.

[0015] Furthermore, the continuous fiber reinforced thermoplastic pipe is any one of a fiber reinforced polyethylene pipe, a fiber reinforced polypropylene pipe, and a fiber reinforced nylon pipe.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The joint described in the utility model comprises a hollow socket joint body, and the hollow socket joint body is connected to the end of the continuous fiber reinforced thermoplastic pipe through a flange. The end of the continuous fiber reinforced thermoplastic pipe is manufactured by a molding cooling molding process to form an annular groove for fixing a clamp. The flange head of the flange is fixed by a clamp, which can effectively avoid the possibility of the continuous fiber reinforced thermoplastic pipe slipping off the hollow socket joint body. The flange head is further fixed by the clamp, which can further strengthen the tightness of the connection between the pipeline and the pipeline, or the pipeline and other equipment, prevent medium leakage, and further strengthen the sealing of the system.

[0018] In the utility model, an annular rubber piece is provided on the inner wall of the hollow socket joint body, and the annular rubber piece has an elastic effect. The specific annular rubber piece can also be an elastic rubber pad. After installation, the end face of the pipe contacts the elastic rubber pad in the hollow socket joint body, and the contact between the two is closer, which effectively solves the problem that the continuous fiber reinforced thermoplastic pipe must be sealed before installation and use. The whole installation procedure is simple, and can effectively ensure the final use effect, and also avoid the penetration of the transportation medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2This is a schematic longitudinal section diagram of the connection between the hollow socket joint body and the annular rubber member in the utility model.

[0021] Among them: 1-hollow socket joint body, 2-end, 3-flange, 4-annular rubber part, 5-annular groove, 6-hoop. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0023] Embodiment 1:

[0024] like Figure 1 , Figure 2 As shown, a socket-type sealing flange connection joint comprises a hollow socket joint body 1, and the hollow socket joint body 1 is connected to the end 2 of a continuous fiber reinforced thermoplastic pipe through a flange 3; an annular rubber part 4 is provided on the inner wall of the hollow socket joint body 1, one end of the continuous fiber reinforced thermoplastic pipe is inserted into the hollow socket joint body 1, and the end face of the continuous fiber reinforced thermoplastic pipe is in contact with the annular rubber part 4, and the annular rubber part 4 is an elastic rubber pad.

[0025] Specifically, the end 2 of the continuous fiber reinforced thermoplastic pipe is manufactured by a molding cooling molding process to form an annular groove 5 for fixing the clamp 6. The flange head of the flange 3 is fixed by the clamp 6. The clamp 6 is located on the outside of the pipe body of the hollow socket joint body 1 and is fixed by bolts. The clamp 6 surrounds the outer periphery of the annular groove 5, and the flange 3 is an international steel flange.

[0026] The specific application scenario is that both ends or one end of the hollow socket joint body 1 are connected to the continuous fiber reinforced thermoplastic pipe. If both ends of the hollow socket joint body 1 are connected to the continuous fiber reinforced thermoplastic pipe, elastic rubber pads must be installed on the inner walls of both ends of the hollow socket joint body 1. The use of the elastic rubber pad ensures that when the continuous fiber reinforced thermoplastic pipe is inserted into the deepest part of the hollow socket joint body 1, the end face of the continuous fiber reinforced thermoplastic pipe is in close contact with the elastic rubber pad, without any gaps, and with strong sealing to prevent leakage of the transmission medium. The installation procedure is simple, and there is no need to perform sealing construction operations before installation and use.

[0027] The hollow socket joint body 1 is connected to the end 2 of the continuous fiber reinforced thermoplastic pipe through the flange 3, which can effectively prevent the continuous fiber reinforced thermoplastic pipe from falling off when inserted into the hollow socket joint body 1. At the same time, the thermoplasticity of the continuous fiber reinforced thermoplastic pipe is utilized to heat the pipe end, and the annular groove 5 is formed by molding and cooling. The annular groove 5 is mainly used to fix the flange head, and then the clamp 6 is used to fix it on the outer periphery of the flange head. The specific structure of the clamp 6 can be two semicircular structures, which are fixed by bolts, so as to further strengthen the overall fixing effect of the continuous fiber reinforced thermoplastic pipe and the hollow socket joint body 1.

[0028] Specifically, the flange 3 is made of C3371 steel rod by close machining.

[0029] Specifically, the specifications of the continuous fiber reinforced thermoplastic pipe include but are not limited to a diameter of 50 mm-3000 mm, and various specifications and sizes of the continuous fiber reinforced thermoplastic pipe can be applied, with a wide range of applications.

[0030] Specifically, the continuous fiber reinforced thermoplastic pipe is any one of a fiber reinforced polyethylene pipe, a fiber reinforced polypropylene pipe, and a fiber reinforced nylon pipe.

[0031] The socket-type sealing flange connection joint described in this embodiment adopts a pipe connection method combining the socket type and the flange type, making full use of the inherent characteristics of the continuous fiber reinforced thermoplastic pipe to achieve a good fastening effect, and at the same time has a good technical effect of preventing the continuous fiber reinforced thermoplastic pipe from slipping out of the hollow socket joint body, and also avoids the need for sealing before installation. The overall operation process is optimized, the installation is simple, and the application effect is good.

[0032] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A socket-type sealing flange connection joint, characterized in that: The joint comprises a hollow socket joint body (1), wherein the hollow socket joint body (1) is connected to an end (2) of a continuous fiber reinforced thermoplastic pipe via a flange (3); an annular rubber member (4) is provided on the inner wall of the hollow socket joint body (1), one end of the continuous fiber reinforced thermoplastic pipe is inserted into the hollow socket joint body (1), and the end surface of the continuous fiber reinforced thermoplastic pipe is in contact with the annular rubber member (4).

2. The socket-type sealing flange connection joint according to claim 1, characterized in that: The annular rubber component (4) is an elastic rubber pad.

3. The socket-type sealing flange connection joint according to claim 1, characterized in that: The end head (2) of the continuous fiber reinforced thermoplastic pipe is manufactured by a compression molding and cooling process to form an annular groove (5) for fixing the clamp (6).

4. The socket-type sealing flange connection joint according to claim 3, characterized in that: The flange head of the flange (3) is fixed by a clamp (6).

5. The socket-type sealing flange connection joint according to claim 4, characterized in that: The hoop (6) is located outside the tube body of the hollow socket joint body (1) and is fixed by bolts.

6. The socket-and-spigot sealing flange connection joint according to claim 4, characterized in that: The hoop (6) surrounds the outer circumference of the annular groove (5).

7. The socket-type sealing flange connection joint according to claim 1, characterized in that: The flange (3) is an international steel flange.

8. The socket-and-spigot sealing flange connection joint according to claim 1, characterized in that: The flange (3) is made of C3371 steel bar by close machining.

9. The socket-and-spigot sealing flange connection joint according to claim 1, characterized in that: The specifications of the continuous fiber reinforced thermoplastic pipe include diameters of 50 mm to 3000 mm.

10. The socket-and-spigot sealing flange connection joint according to claim 1, characterized in that: The continuous fiber reinforced thermoplastic pipe is any one of a fiber reinforced polyethylene pipe, a fiber reinforced polypropylene pipe, and a fiber reinforced nylon pipe.

Images