CN203560655U

CN203560655U - Socket-and-spigot pipe joint for connection of steel-reinforced-plastic winding pipes and corrugated pipes

Info

Publication number: CN203560655U
Application number: CN201320780454.6U
Authority: CN
Inventors: 纪万年; 吴晓盼
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-02
Filing date: 2013-12-02
Publication date: 2014-04-23
Anticipated expiration: 2023-12-02

Abstract

The utility model discloses a socket-and-spigot pipe joint for connection of steel-reinforced-plastic winding pipes and corrugated pipes. The socket-and-spigot pipe joint comprises a spigot sleeve and a socket sleeve. The spigot sleeve comprises a spigot pipe and a first straight pipe. The socket sleeve comprises a socket pipe and a second straight pipe. The socket-and-spigot pipe joint is characterized in that the outer diameters of the first straight pipe and the second straight pipe are matched with the inner diameters of the steel-reinforced-plastic winding pipes or the corrugated pipes; the spigot pipe is connected with the socket pipe in a close fit mode. By the socket-and-spigot pipe joint, the problems that existing pipe joints for connection of the steel-reinforced-plastic winding pipes and the corrugated pipes are narrow in application range, inconvenient to mount and high in cost are solved; through the mode, two steel-reinforced-plastic winding pipes are directly connected in an inner socket-and-spigot mode, and the sleeves are connected with the steel-reinforced-plastic winding pipes in a welding mode, so that process is simplified, mounting is facilitated, and the socket-and-spigot pipe joint is high in sealability, low in cost and applicable to different specifications of the steel-reinforced-plastic winding pipes and the corrugated pipes.

Description

A kind of inserting pipe joints for plastic-steel spirally-wound pipe and bellows connection

Technical field

The utility model relates to a kind of pipe joint, is specifically related to a kind of inserting pipe joints for plastic-steel spirally-wound pipe and bellows connection.

Background technique

Plastic-steel spirally-wound pipe is by steel, to mould compound heterotypic strip to make through spiral winding welding, and its inner wall smooth is smooth, and this kind of tubing has the advantages such as corrosion-resistant, quality is light, through-current capacity is large, the life-span is long.Bellows has annular ripple type outer wall and smooth internal walls because of it, its excellent performance, and cost relatively economical, is the desirable alternative of draining blow-off line.Traditional Placement mainly adopts two kinds of connecting means, i.e. interior electric melting connection method and stainless steel lathe dog connecting means, but adopt the above-mentioned connecting means installation time long, and recruitment is more, and labour cost is high.

As Chinese Patent Application No. 201220003239.0, a kind of pipe joint connecting for polyethylene plastic-steel winding pipe is disclosed, it comprises spiral pipe body, be separately fixed at plug-in unit sleeve pipe and the socket joint sleeve pipe in outside, spiral pipe body two ends, plug-in unit sleeve pipe is comprised of the first volute and the first straight tube, the first spiral grooves that volute inner side has with evagination spiral matches and rotation direction is identical, and between the first volute and the first straight tube, be provided with the first flange projection, the first volute screws and is fixed on one end of spiral pipe body; Socket joint sleeve pipe is comprised of the second volute and the second straight tube, and the external diameter of the first straight tube is less than or equal to the internal diameter of the second straight tube.Although above-mentioned patent is by adopting respectively sweat soldering Placement at spiral pipe body two ends port and socket joint sleeve pipe and plug-in unit sleeve pipe junction, improved the sealing of product, but be respectively equipped with the spiral grooves coordinating with plastic-steel spirally-wound pipe on its first volute and the second volute, by this spiral grooves, make the first volute and the second volute screw and be connected with spiral pipe body respectively, therefore this pipe joint is only applicable to the plastic-steel spirally-wound pipe with identical screw thread, complex structure, processing cost is high.

And for example Chinese Patent Application No. 201220614450.6, a kind of self-locking type pipe joint connecting for plastic-steel spirally-wound pipe is disclosed, comprise plug-in unit sleeve pipe and socket joint sleeve pipe, plug-in unit sleeve pipe comprises the first threaded pipe and the first straight tube, and socket joint sleeve pipe comprises the second threaded pipe and the second straight tube; Described the first threaded pipe and the second threaded pipe are provided with the triple thread coordinating with plastic-steel spirally-wound pipe outside thread; The port of the first straight tube is provided with one group of buckle coordinating with the second straight tube.Although above-mentioned patent is provided with one group of buckle coordinating with the second straight tube in the port of the first straight tube, solved the bad problem of existing pipe joint intensity, but this kind of pipe joint difficulty of processing is large, die manufacturing cost is high, weight is large, and especially this pipe joint occurs leaking or other defect once pin, and joint cannot unload, only have the joint of destruction just can deal with problems, directly cause the increase of cost.

Model utility content

The purpose of this utility model is to provide a kind of inserting pipe joints for plastic-steel spirally-wound pipe and bellows connection, has solved the existing pipe joint structure complexity for plastic-steel spirally-wound pipe and bellows connection, and narrow application range, installs inconvenience, the problem that cost is higher.

The utility model solves the technological scheme that its technical problem adopts: a kind of inserting pipe joints connecting for plastic-steel spirally-wound pipe and bellows, comprise plug-in unit sleeve pipe and socket joint sleeve pipe, plug-in unit sleeve pipe comprises insertion pipe and the first straight tube, and socket joint sleeve pipe comprises bell-and-spigot pipe and the second straight tube.The internal diameter of the external diameter of the first straight tube and the second straight tube and plastic-steel spirally-wound pipe or bellows is suitable, the first straight tube and the second straight tube can be inserted in the inwall of plastic-steel spirally-wound pipe or bellows easily, then the port of the first straight tube and the second straight tube and plastic-steel spirally-wound pipe or bellows junction are adopted and are welded to connect respectively.Insertion pipe is connected in the mode of closely cooperating with bell-and-spigot pipe, when running into hot environment, even if micro-displacement occurs for insertion pipe and bell-and-spigot pipe, also can guarantee sealing good between insertion pipe and bell-and-spigot pipe.

In order to improve the sealing between insertion pipe and bell-and-spigot pipe, on the outer wall of insertion pipe, be provided with groove, in this groove, be mounted with O RunddichtringO.

More attractive in appearance for insertion pipe is connected with bell-and-spigot pipe, strengthen weld strength, save material simultaneously, on the end face that insertion pipe and the first straight tube coordinate, be provided with first ring connected in star; On the end face that bell-and-spigot pipe and the second straight tube coordinate, be provided with the second annular groove.

For convenient, insertion pipe is inserted in bell-and-spigot pipe, and pipe joint is inserted in plastic-steel spirally-wound pipe or bellows, the end of insertion pipe, the first straight tube and the second straight tube is provided with certain tapering.

For the intensity of reinforcement tube joint, reduce cost simultaneously, on the outer wall of insertion pipe and bell-and-spigot pipe, be furnished with one group of stiffening rib.

Preferably, inserting pipe joints is the pipe joint of being made by polythene material.

The beneficial effects of the utility model: be connected with the mode of closely cooperating of bell-and-spigot pipe by insertion pipe, even if make insertion pipe and bell-and-spigot pipe, under hot environment, microdisplacement occur, also can guarantee sealing good between insertion pipe and bell-and-spigot pipe; Secondly, the first straight tube and the second straight tube are set to spigot and socket type, then in the junction of its port and plastic-steel spirally-wound pipe or bellows, adopt and be welded to connect respectively, not only without machining screw, reduced cost, avoid the unmatched problem of outside thread of existing the first straight tube and the second straight tube and plastic-steel spirally-wound pipe, and improved the efficiency of assembling, because above-mentioned operation is directly carried out in factory, when operating, workman only insertion pipe need be inserted in bell-and-spigot pipe until reach effective socket joint connecting length, and convenient and reliable.

Accompanying drawing explanation

Below with reference to drawings and Examples, the utility model is described in detail.

Fig. 1 is three-dimensional exploded view of the present utility model.

Fig. 2 is sectional view of the present utility model.

Fig. 3 is the partial enlarged drawing of A in Fig. 2.

Embodiment

Embodiment, sees also Fig. 1 to 3, as shown in the figure, a kind of inserting pipe joints for plastic-steel spirally-wound pipe and bellows connection, take plastic-steel spirally-wound pipe as example, bellows is identical therewith.

This pipe joint comprises plug-in unit sleeve pipe 1 and socket joint sleeve pipe 2, and plug-in unit sleeve pipe 1 comprises insertion pipe 11 and the first straight tube 12, and socket joint sleeve pipe 2 comprises bell-and-spigot pipe 21 and the second straight tube 22.The external diameter of the first straight tube 12 and the second straight tube 22 and the internal diameter of plastic-steel spirally-wound pipe 3 are suitable, the first straight tube 12 and the second straight tube 22 can be inserted in the inwall of plastic-steel spirally-wound pipe 3 easily, then adopt respectively automatic welding to be connected with plastic-steel spirally-wound pipe 3 junctions the port of the first straight tube 12 and the second straight tube 22.

Insertion pipe 11 is connected in the mode of closely cooperating with bell-and-spigot pipe 21, when running into hot environment, even if insertion pipe 11, with bell-and-spigot pipe 21, micro-displacement occurs, also can guarantee sealing good between insertion pipe 11 and bell-and-spigot pipe 21.For convenient, insertion pipe 11 is inserted in bell-and-spigot pipe 21, and pipe joint is inserted in plastic-steel spirally-wound pipe, the end of insertion pipe 11, the first straight tube 12 and the second straight tube 22 is provided with certain tapering.In order to improve the sealing between insertion pipe and bell-and-spigot pipe, on the outer wall of insertion pipe 11, be provided with groove 13, in groove 13, be mounted with O RunddichtringO 4.

Because Cutting process in entwining tube and bellows manufacture process is limit, pipe end face is irregular, also be not orthogonal to axis, for its defect is blocked, make insertion pipe be connected more attractive in appearance with bell-and-spigot pipe appearance, when strengthening weld strength, farthest save material, on the end face that insertion pipe 11 and the first straight tube 12 coordinate, be provided with first ring connected in star 14; On the end face that bell-and-spigot pipe 21 and the second straight tube 22 coordinate, be provided with the second annular groove 23.Further, for the intensity of reinforcement tube joint, reduce cost simultaneously, on the outer wall of insertion pipe 11 and bell-and-spigot pipe 21, be furnished with one group of stiffening rib 5.

Preferably, inserting pipe joints is the pipe joint of being made by polythene material, consistent with the material of plastic-steel spirally-wound pipe, can reach the working life identical with plastic-steel spirally-wound pipe.

During operation, first the first straight tube and the second straight tube are inserted respectively to the inwall of plastic-steel spirally-wound pipe, and itself and plastic-steel spirally-wound pipe are welded together, for the reliability that guarantees to connect, take the first straight tube and the second straight tube internal port (being the B place shown in Fig. 3) and plastic-steel spirally-wound pipe or bellows automatic welding, the mode of first ring connected in star and the second annular groove end face and plastic-steel spirally-wound pipe or bellows outer periphery (being the C place shown in Fig. 3) local welding; Then insertion pipe is inserted in bell-and-spigot pipe until reach effective socket joint connecting length; Previous process directly machines in factory, and later process is installed in enforcement and completed at the scene by workman.Adopt as upper type, two plastic-steel spirally-wound pipes connect socket joint in directly employing, sleeve pipe is connected employing welding manner with plastic-steel spirally-wound pipe, not only simplified flow process, facilitated installation, workman only need insert insertion pipe in bell-and-spigot pipe at the construction field (site), and tightness is strong, with low cost, the plastic-steel spirally-wound pipe of applicable different size and bellows.

Claims

1. the inserting pipe joints for plastic-steel spirally-wound pipe and bellows connection, comprise plug-in unit sleeve pipe (1) and socket joint sleeve pipe (2), plug-in unit sleeve pipe (1) comprises insertion pipe (11) and the first straight tube (12), socket joint sleeve pipe (2) comprises bell-and-spigot pipe (21) and the second straight tube (22), it is characterized in that: the external diameter of described the first straight tube (12) and the second straight tube (22) and the internal diameter of plastic-steel spirally-wound pipe (3) or bellows are suitable; Insertion pipe (11) is connected in the mode of closely cooperating with bell-and-spigot pipe (21).

2. the inserting pipe joints for plastic-steel spirally-wound pipe and bellows connection as claimed in claim 1, is characterized in that: on the outer wall of described insertion pipe (11), be provided with groove (13), be mounted with O RunddichtringO (4) in groove (13).

3. the inserting pipe joints for plastic-steel spirally-wound pipe and bellows connection as claimed in claim 1, is characterized in that: on the end face that described insertion pipe (11) and the first straight tube (12) coordinate, be provided with first ring connected in star (14); On the end face that bell-and-spigot pipe (21) and the second straight tube (22) coordinate, be provided with the second annular groove (23).

4. the inserting pipe joints for plastic-steel spirally-wound pipe and bellows connection as claimed in claim 1, is characterized in that: on the outer wall of described insertion pipe (11) and bell-and-spigot pipe (21), be furnished with one group of stiffening rib (5).

5. the inserting pipe joints for plastic-steel spirally-wound pipe and bellows connection as described in claim 1 to 4 any one, is characterized in that: described inserting pipe joints is the pipe joint of being made by polythene material.