CN208565886U - A kind of polyethylene pipe socket joint connection structure - Google Patents

Abstract

The utility model discloses a kind of polyethylene pipe socket joint connection structures.This kind of polyethylene pipe socket joint connection structure includes bell and spigot joint, it is straight pipe in the middle part of bell and spigot joint, straight pipe both ends are provided with taper bell and spigot, the bell and spigot at both ends is plugged in corresponding polyethylene pipe, polyethylene pipe both ends are provided with cone-shaped interface end, interface end is connected with straight tube end, and bell and spigot is plugged in interface end, the second seal groove that bell and spigot outer surface offers the first seal groove that tapered sealing ring is arranged and is provided with water-swellable sealing strip；Ball screw is rotatably connected on the circumference of the end face at straight tube end, ball screw is divided into bulb end and screw rod end, and bulb end and the rotation connection of straight tube end, screw rod end are threadedly coupled by screw thread with the straight tube end of another polyethylene pipe.Conical surface crimping is plugged with excellent leakproofness relative between conventional pipeline, by the connection of ball screw, to realize the sealed connection between two drainpipes.

Description

A kind of polyethylene pipe socket joint connection structure

Technical field

The utility model relates to discharge pipe line fields, the in particular to connection type of discharge pipe line.

Background technique

For connecting pipe or pipe fitting or bifurcated passage, bellmouth is made in pipe ends, and (socket is not needed generally with socket It is special), in socket insertion bellmouth, then sealing joints, such pipeline or piping claim bell-and-spigot pipe.According to process requirement, pipe It is bellmouth (holding to be double) that road, which can do both ends, and pipe fitting can be made more bellmouths, or is made into several bellmouths or several sockets respectively (holding single insert as double).The plastic conduit that municipal aspect uses, general diameter is larger, not only needs pipeline itself to have good strong Degree, but also need pipeline that can resist the impact force in the liquid delivery process such as water flow, while it is good also to need pipeline to have Sealing performance and the features such as be easily installed.

Utility model content

The purpose of the utility model is to provide a kind of polyethylene pipe socket joint connection structures of good airproof performance.

In order to realize above-mentioned purpose of utility model, a kind of drainpipe with novel bell and spigot joint of the utility model is using such as Lower technical solution:

A kind of polyethylene pipe socket joint connection structure, including bell and spigot joint, the bell and spigot joint middle part is straight pipe, straight pipe Both ends are provided with symmetrical taper bell and spigot, and towards outside, the bell and spigot at both ends is plugged in respectively right the cone of the bell and spigot It is tube body in the middle part of the polyethylene pipe, tube body both ends are provided with the cone symmetrically to match with bell and spigot in the polyethylene pipe answered Shape interface end, the big end of the interface end is towards outside and is connected with the straight tube end of annular, straight tube end center offer with The clear opening that straight pipe shape matches, the bell and spigot are plugged in interface end, one of straight pipe are socketed in the clear opening Point, realize that first of sealing between polyethylene pipe and bell and spigot joint connects by the crimping of tapered surface between interface end and bell and spigot It connects, the bell and spigot outer surface of the bell and spigot joint is circumferentially also provided with the first seal groove and the second seal groove, and described first is close It is provided with tapered sealing ring in sealing groove, is provided with water-swellable sealing strip in second seal groove；One polyethylene pipe it is straight The end face of pipe end is rotatably connected to multiple ball screws, the axis of the ball screw on the circumference centered on the axis at straight tube end Line is parallel with the axis of bell and spigot joint, and the ball screw is divided into bulb end and screw rod end, the bulb end and the rotation of straight tube end Connection, the screw rod end is threadedly coupled by screw thread with the threaded hole that the straight tube end end face of another polyethylene pipe opens up；Socket joint The straight tube end outer surface of connector both ends socket is also socketed with retaining ring, and the gap between two straight tube ends is covered in it by the retaining ring In.Rotating ballhead screw rod, ball screw produce relative rotation with the straight tube end, since screw rod end passes through screw thread and another straight tube End is threadedly coupled, so screw rod end screw thread and the screw thread at straight tube end relatively rotate, the screw thread that screw rod end is opened up along straight tube end Hole displacement is socketed in the distance between the straight tube end at bell and spigot joint both ends to adjust, is connected to the same bell and spigot joint both ends Straight tube end it is close to each other when, two drainpipes are realized by socket bell and spigot joint and are tightly connected, and are connected to the same socket joint and are connect The straight tube end at head both ends is when being located remotely from each other, can be by drainpipe from socket joint when screw rod end is screwed out from the threaded hole at straight tube end The separation of connector both ends.

With bulb end rotation connection straight tube end end face be connected with annular bulb gland, the bulb gland and and its The end face at the straight tube end of connection offers corresponding arc groove, and the arc groove and bulb end correspond, the bulb end It is set in arc groove, the screw rod end in the corresponding first through hole opened up of bulb gland by being pierced by.It will by bulb gland In the corresponding arc groove opened up of bulb side pressure access bulb gland and straight tube end, convenient and simple realizes bulb end and straight tube end Rotation connection.

Gap is equipped between the bulb end and arc groove.The gap prevents bulb end in rotation and arc groove card Extremely.

The grease of lubrication is filled in the gap.The grease keeps the rotation at bulb end more smooth.

First through hole inner wall offers seal groove, and the sealing ring for preventing grease leakage is provided in seal groove.It is described Sealing ring is by grease seal in gap, preventing from causing unnecessary loss and waste.

The outer surface setting at the screw rod end is parallel to screw rod end axis and symmetrically arranged plane, the plane lower end Distance to screw rod end end face is greater than the depth that straight tube end opens up the threaded hole for connecting screw end.Plane is used as fixture Clamping face when clamping screw end facilitates rotating ballhead screw rod.

The utility model has the beneficial effects that: being socketed in bell and spigot joint both ends to adjust by rotating ballhead screw rod The distance between straight tube end, be connected to the same bell and spigot joint both ends straight tube end it is close to each other when, the socket joint of bell and spigot joint The conical surface of mouth and the conical surface of interface end are mutually adjacent to, and conical surface crimping is plugged with excellent leakproofness relative between conventional pipeline, To realize the sealed connection between two drainpipes.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the A partial enlarged view of Fig. 1；

Fig. 3 is bell and spigot joint structural schematic diagram；

Fig. 4 is ball screw structural schematic diagram；

Fig. 5 is Fig. 4 top view；

Fig. 6 is bulb gland structure schematic views.

Wherein, 1 straight pipe, 2 bell and spigots, 3 tube bodies, 4 interface ends, 5 first seal grooves, 6 second seal grooves, 7 tapered sealings Circle, 8 water-swellable sealing strips, 9 bulb ends, 10 screw rod ends, 11 bulb glands, 12 greases, 13 first through hole, 14 seal grooves, 15 sealing rings, 16 planes, 17 retaining rings.

Specific embodiment

With reference to embodiment, the utility model is furtherd elucidate, it should be understood that these embodiments are only used for Bright the utility model rather than limitation the scope of the utility model, after having read the utility model, those skilled in the art Member falls within the application range as defined in the appended claims to the modification of the various equivalent forms of the utility model.

As shown in figures 1 to 6, a kind of polyethylene pipe socket joint connection structure, including bell and spigot joint, bell and spigot joint middle part is straight-through Pipe 1, straight pipe both ends are provided with symmetrical taper bell and spigot 2, and towards outside, the bell and spigot at both ends is plugged in the cone of bell and spigot It in corresponding polyethylene pipe, is tube body 3 in the middle part of polyethylene pipe, tube body both ends, which are provided with, symmetrically to match with bell and spigot The big end at cone-shaped interface end 4, interface end towards outside and is connected with annular straight tube end 5, and straight tube end center offers and leads directly to The clear opening that pipe shape matches, bell and spigot are plugged in interface end, a part of straight pipe are socketed in clear opening, passes through interface end The crimping of tapered surface realizes that first of sealed connection between polyethylene pipe and bell and spigot joint, bell and spigot joint are held between bell and spigot Socket outer surface is circumferentially also provided with the first seal groove 5 and the second seal groove 6, is provided with tapered sealing ring in the first seal groove 7, water-swellable sealing strip 8 is provided in the second seal groove, tapered sealing ring and water-swellable sealing strip form second sealing； The end face at the straight tube end of one polyethylene pipe is rotatably connected to multiple ball screws on the circumference centered on the axis at straight tube end, The axis of ball screw and the axis of bell and spigot joint are parallel, and ball screw is divided into bulb end 9 and screw rod end 10, bulb end and straight tube End rotation connection, with bulb end rotation connection straight tube end end face be connected with annular bulb gland 11, bulb gland and with The end face at its straight tube end connected offers corresponding arc groove, and arc groove and bulb end correspond, and bulb end is set to In arc groove, it is equipped with gap between bulb end and arc groove, the grease 12 of lubrication is filled in gap, screw rod end passes through bulb It is pierced by the corresponding first through hole 13 opened up of gland, first through hole inner wall offers seal groove 14, is provided in seal groove Prevent the sealing ring 15 of grease leakage, the threaded hole that screw rod end is opened up by the straight tube end end face of screw thread and another polyethylene pipe It is threadedly coupled, the outer surface at screw rod end, which mills out, is parallel to screw rod end axis and symmetrically arranged plane 16, plane lower end to spiral shell The distance of rod end end face is greater than the depth that straight tube end opens up the threaded hole for connecting screw end；Bell and spigot joint both ends are socketed straight Tube end outer surface is also socketed with retaining ring 17, and retaining ring covers in the gap between two straight tube ends wherein, passes through spiral shell after the completion of socket Bolt is affixed by retaining ring and straight tube end.

Bulb side pressure is accessed the corresponding circular arc opened up of bulb gland and straight tube end by bulb gland by rotating ballhead screw rod In slot, ball screw and the straight tube end produce relative rotation without generating relative displacement, due to screw rod end by screw thread with it is another A straight tube end is threadedly coupled, so screw rod end screw thread and the screw thread at straight tube end relatively rotate, screw rod end is opened up along straight tube end Threaded hole displacement, thus adjust be socketed in the distance between the straight tube end at bell and spigot joint both ends, be connected to the same socket joint and connect When the straight tube end at head both ends is close to each other, the conical surface of the bell and spigot of bell and spigot joint and the conical surface of interface end are mutually adjacent to, conical surface pressure It connects relative to the excellent leakproofness that is plugged between conventional pipeline, two drainpipes realize that sealing connects by socket bell and spigot joint It connects, when being connected to the straight tube end at the same bell and spigot joint both ends and being located remotely from each other, when screw rod end is screwed out from the threaded hole at straight tube end When, drainpipe can be separated from bell and spigot joint both ends.

Claims (6)

1. a kind of polyethylene pipe socket joint connection structure, it is characterised in that: be straight-through in the middle part of the bell and spigot joint including bell and spigot joint Pipe, straight pipe both ends are provided with symmetrical taper bell and spigot, and the cone of the bell and spigot is towards outside, the bell and spigot grafting at both ends Be tube body in the middle part of the polyethylene pipe in corresponding polyethylene pipe, tube body both ends be provided with symmetrically with bell and spigot phase The big end at matched cone-shaped interface end, the interface end towards outside and is connected with annular straight tube end, straight tube end center The clear opening to match with straight pipe shape is offered, the bell and spigot is plugged in interface end, and socket is straight-through in the clear opening A part of pipe realizes first between polyethylene pipe and bell and spigot joint by the crimping of tapered surface between interface end and bell and spigot It is tightly connected, the bell and spigot outer surface of the bell and spigot joint is circumferentially also provided with the first seal groove and the second seal groove, described It is provided with tapered sealing ring in first seal groove, is provided with water-swellable sealing strip in second seal groove；One polyethylene The end face at the straight tube end of pipe is rotatably connected to multiple ball screws, the bulb spiral shell on the circumference centered on the axis at straight tube end The axis of bar and the axis of bell and spigot joint are parallel, and the ball screw is divided into bulb end and screw rod end, the bulb end and straight tube End rotation connection, the screw rod end are connected by the threaded hole screw thread that the straight tube end end face of screw thread and another polyethylene pipe opens up It connects；The straight tube end outer surface of bell and spigot joint both ends socket is also socketed with retaining ring, and the retaining ring is by the gap between two straight tube ends It covers in wherein.

2. a kind of polyethylene pipe socket joint connection structure according to claim 1, it is characterised in that: be rotatablely connected with bulb end The end face at straight tube end be connected with the bulb gland of annular, the end face at the bulb gland and straight tube end connected to it offers Corresponding arc groove, the arc groove and bulb end correspond, and the bulb end is set in arc groove, the screw rod end By being pierced by the corresponding first through hole opened up of bulb gland.

3. a kind of polyethylene pipe socket joint connection structure according to claim 2, it is characterised in that: the bulb end and circular arc Gap is equipped between slot.

4. a kind of polyethylene pipe socket joint connection structure according to claim 3, it is characterised in that: be filled in the gap The grease of lubrication.

5. a kind of polyethylene pipe socket joint connection structure according to claim 4, it is characterised in that: first through hole inner wall opens up There is seal groove, the sealing ring for preventing grease leakage is provided in seal groove.

6. a kind of polyethylene pipe socket joint connection structure according to claim 1, it is characterised in that: the appearance at the screw rod end Face setting is parallel to screw rod end axis and symmetrically arranged plane, and the distance of the plane lower end to screw rod end end face is greater than straight Pipe end opens up the depth of the threaded hole for connecting screw end.