Socket and spigot type plastic pipe head

Abstract

The utility model relates to the technical field of plastic pipe heads, and discloses a socket type plastic pipe head which comprises a first pipe head, the outer surface of the left end of the first pipe head is conical, an annular groove is formed in the left end of the first pipe head, an elastic sealing ring is connected in the annular groove in a clamped mode, the surface of the elastic sealing ring is coated with a water-swelling nano-coating, and the outer surface of the first pipe head is coated with a water-swelling nano-coating. An electric hot melting layer is arranged at the left end of the first pipe head and located on the right side of the annular groove, the electric hot melting layer and the first pipe head are both made of polyethylene, a resistance wire is fixedly installed in the electric hot melting layer, the right portion of the resistance wire is fixedly connected with a connector lug, and the connector lug is fixedly connected with the electric hot melting layer in a sleeved mode. The elastic sealing ring is combined with electric hot melting connection, the elasticity of the sealing ring is utilized to adapt to infinitesimal displacement of the pipeline caused by environmental change, the stability of a pipeline system is improved, the connection strength is enhanced through electric hot melting, the connector and the pipe have the same chemical stability and corrosion resistance, and the service life of the pipeline system is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to plastic pipe head technical field especially, relates to a socket type plastic pipe head. BACKGROUND

[0002] The socket type plastic pipe head is a kind of pipe fitting widely used in water supply and drainage, gas, chemical industry and other fields, realizes pipeline connection by the cooperation of socket and spigot, with the characteristics of simple structure, strong sealing, convenient installation, etc., the socket type plastic pipe head is applied in many fields by material diversity and structural flexibility, from traditional building, municipal scene extends to industry, agriculture, energy, environmental protection and other fields, in various engineering constructions, socket type plastic pipe head is applicable to water supply and drainage, gas delivery, farmland irrigation, material delivery and many different tasks.

[0003] In prior art, when plastic pipe head is connected, sealing ring is mostly used for connection, although sealing ring can provide good sealing effect under normal circumstances, but in corrosive environment, sealing ring at connecting place can appear aging, deformation or damage, leading to sealing performance decline, part uses hot melt connection, but hot melt connection is susceptible to environmental influence, and stability is insufficient, therefore, to solve the above problems, the utility model provides a socket type plastic pipe head. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a socket type plastic pipe head, combines elastic sealing ring and electric heat melting connection, utilizes the elasticity of sealing ring to adapt to the slight displacement of pipeline due to temperature change, ground subsidence and other factors, improves the stability of pipeline system, enhances the connection strength by electric heat melting, makes the interface and pipe material itself have same chemical stability and corrosion resistance, prolongs the service life of pipeline system.

[0005] The utility model provides following technical scheme: a socket type plastic pipe head, including pipe head one, the pipe head one left end outer surface is conical setting, the pipe head one left end is equipped with annular groove, the annular groove number is two, the annular groove is clamped with elastic sealing ring, the elastic sealing ring surface is coated with water-swelling nano coating, the pipe head one left end and located annular groove's right side is provided with electric heat melting layer, the electric heat melting layer and pipe head one material are all polyethylene, the electric heat melting layer inside fixed mounting has resistance wire, the resistance wire right part is fixedly connected with terminal, the terminal number is two and is symmetrically distributed, the terminal is fixed with electric heat melting layer sleeve joint, combines elastic sealing ring and electric heat melting connection, utilizes the elasticity of sealing ring to adapt to the slight displacement of pipeline due to environmental change, improves the stability of pipeline system, enhances the connection strength by electric heat melting, makes the interface and pipe material itself have same chemical stability and corrosion resistance, prolongs the service life of pipeline system.

[0006] Preferably, the left part of the pipe head one is provided with a pipe head two, the pipe head two is made of polyethylene, the left end of the pipe head one is matched with the inner cavity of the right end of the pipe head two, the pipe head two is uniformly and fixedly connected with socket reinforcing ribs outside the right end, the number of the socket reinforcing ribs is four, the pipe head one and the pipe head two are respectively provided with PEPRP porous rib reinforced pipes outside the pipe wall, the double-layer overlapping cooperation at the connecting place is matched with the socket reinforcing ribs outside the pipe head two, so that the circumferential rigidity of the connecting place is higher, the socket joint is made of polyethylene material, is green, environmentally friendly and non-polluting, and the service life can be more than 50 years.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] 1. By setting the elastic sealing ring at the connecting place, a certain elasticity can be obtained, the slight displacement of the pipeline due to temperature change, foundation settlement and other factors can be adapted, the risk of leakage at the interface is reduced, the stability of the pipeline system is improved, the pipeline can better adapt to slight settlement of the ground, and when the elastic sealing ring contacts the infiltrated water flow, the surface of the nano coating expands when meeting water, the micro gap at the connecting place is filled, and better anti-infiltration is realized.

[0009] 2. By heating the electric heat melting layer, the connecting places are fused with each other, and after natural cooling, solidification is formed into an integral whole, the connecting strength is high, the higher pressure and tension can be borne, the interface is not easy to loosen or fall off, the longitudinal anti-falling of the pipeline connecting place is favorable, is suitable for being used in various settlement zones or karst landforms, the heat melting connection forms a whole connecting port, there is no gap, the sealing performance is reliable, the interface after heat melting connection has the same chemical stability and corrosion resistance as the pipe material itself, the service life of the pipeline system is prolonged, and the double-layer overlapping cooperation at the connecting place is matched with the socket reinforcing ribs outside the pipe head two, so that the circumferential rigidity of the connecting place is higher. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is an external structure schematic view of the utility model;

[0011] Figure 2 It is a structure schematic view of the utility model when being connected;

[0012] Figure 3 It is a cross-sectional structure schematic view of the utility model after being connected;

[0013] Figure 4 It is the utility model Figure 3 It is an enlarged schematic view of A in the utility model;

[0014] Figure 5 It is a resistance wire structure schematic view of the utility model.

[0015] In the figure: 1, pipe head one; 2, annular groove; 3, elastic sealing ring; 4, electric heat melting layer; 5, resistance wire; 6, terminal; 7, pipe head two; 8, socket reinforcing rib; 9, PEPRP porous rib reinforced pipe. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] Please refer to Figures 1-5The utility model provides a kind of socket type plastic pipe head, including pipe head one 1, the left end outer surface of pipe head one 1 is conical arrangement, pipe head one 1 left end is provided with annular groove 2, the number of annular groove 2 is two, annular groove 2 is clamped with elastic sealing ring 3, elastic sealing ring 3 surface is coated with water-swelling nano coating, pipe head one 1 left end and the right side of annular groove 2 is provided with electric heat melting layer 4, electric heat melting layer 4 and the material of pipe head one 1 are polyethylene, electric heat melting layer 4 is fixedly installed with resistance wire 5 inside, resistance wire 5 right part is fixedly connected with terminal 6, terminal 6 number is two and is symmetrically distributed, terminal 6 is fixedly sleeved with electric heat melting layer 4, pipe head one 1 left part is provided with pipe head two 7, pipe head two 7 material is polyethylene, pipe head one 1 left end and pipe head two 7 right end inner cavity are in harmony, pipe head two 7 right end outside is uniformly fixedly connected with socket reinforcing rib 8, socket reinforcing rib 8 number is four, pipe head one 1 and pipe head two 7 pipe wall outside are provided with PEPRP porous rib reinforced pipe 9 respectively, in the two annular grooves 2 of pipe head one 1 left end, elastic sealing ring 3 is installed respectively, since pipe head one 1 left end outside is conical arrangement, it is convenient to insert pipe head one 1 left end into pipe head two 7 right end inner cavity, so that elastic sealing ring 3 contacts pipe head two 7 right end inner cavity cavity wall, after pipe head one 1 left end and pipe head two 7 right end inner cavity are completely in harmony, external power supply is connected at terminal 6, so that resistance wire 5 is powered on and heated, when resistance wire 5 is heated to certain temperature, so that electric heat melting layer 4 is converted into molten state, so that pipe head one 1 left end and pipe head two 7 right end inner cavity are mutually fused, solidify to form an integral after natural cooling, realize the connection between two pipe heads, connection strength is high, can withstand higher pressure and tension, prone to interface loosening or falling off, it is favorable to the longitudinal anti -drop of pipeline connection, it is applicable to various subsidence zone or karst landform under use, hot melt connection forms a whole connecting port, there is no gap, sealing performance is reliable, the interface after hot melt connection has same chemical stability and corrosion resistance with pipe material itself, prolong the service life of pipeline system, the double -deck of connection place is superimposed on the socket reinforcing rib 8 outside pipe head two 7, so that the ring stiffness of connection place is higher, when elastic sealing ring 3 contacts the water flow that penetrates, its surface water-swelling nano coating expands, fill the micro gap of connection place, realize zero permeation, elastic sealing ring 3 has certain elasticity, can adapt to the slight displacement of pipeline due to temperature change, ground subsidence and other factors, reduce the risk of interface leakage, improve the stability of pipeline system, so that pipeline can better adapt to slight ground subsidence.

[0018] Working principle: install elastic sealing ring 3 in two annular grooves 2 at the left end of pipe head one 1 respectively, because the outer side of the left end of pipe head one 1 is conical, it is convenient to insert the left end of pipe head one 1 into the inner cavity of the right end of pipe head two 7, so that the elastic sealing ring 3 contacts the cavity wall of the right end of pipe head two 7, after the left end of pipe head one 1 and the inner cavity of the right end of pipe head two 7 completely fit, connect the power supply at the terminal 6, so that the resistance wire 5 is electrified and heated, when the resistance wire 5 is heated to a certain temperature, the electric heating melting layer 4 is converted into a molten state, so that the left end of pipe head one 1 and the right end of pipe head two 7 inner cavity are fused with each other, after natural cooling, the connection between the two pipe heads is formed, realizing the longitudinal anti-disengagement of the pipeline connection, suitable for use in various subsidence zones or karst landforms, the double-layer superposition of the connection place and the outer side of the socket reinforcing rib 8 of pipe head two 7 strengthen the connection place, so that the ring stiffness of the connection place is higher, when the elastic sealing ring 3 contacts the infiltrated water flow, the surface of the nano coating expands when it contacts water, filling the micro gap of the connection place, realizing zero permeation, the pipe head socket joint uses polyethylene material, which is green, environmentally friendly and pollution-free, and the service life can reach more than fifty years.

Claims

1. A socket-type plastic tube head, comprising a tube head one (1), characterized in that: The outer surface of the left end of the tube head (1) is tapered. The left end of the tube head (1) has an annular groove (2). There are two annular grooves (2). An elastic sealing ring (3) is snapped into the annular groove (2). The surface of the elastic sealing ring (3) is coated with a water-swellable nano coating. An electrothermal fusion layer (4) is set at the left end of the tube head (1) and directly to the right of the annular groove (2). The electrothermal fusion layer (4) and the tube head (1) are both made of polyethylene. A resistance wire (5) is fixedly installed inside the electrothermal fusion layer (4). A terminal (6) is fixedly connected to the right side of the resistance wire (5). There are two terminal (6) and they are symmetrically distributed front and back. The terminal (6) is fixedly sleeved with the electrothermal fusion layer (4).

2. The socket-type plastic tube head according to claim 1, characterized in that: The left side of the first pipe head (1) is provided with the second pipe head (7), which is made of polyethylene. The left end of the first pipe head (1) and the right end of the second pipe head (7) are fitted together. The right end of the second pipe head (7) is uniformly fixed with the socket reinforcing ribs (8). There are four socket reinforcing ribs (8). The outer side of the pipe wall of the first pipe head (1) and the second pipe head (7) are respectively provided with PEPRP porous reinforcing pipes (9).

Images