CN201330903Y

CN201330903Y - Bellows joint member

Info

Publication number: CN201330903Y
Application number: CNU200920050693XU
Authority: CN
Inventors: 林锐志
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-22
Filing date: 2009-01-22
Publication date: 2009-10-21
Anticipated expiration: 2019-01-22

Abstract

A bellows joint member pertains to field of paving water supply and drainage pipe, the bellows joint member includes a pair of semiorbicular pipe clamp (2) make of plastic or fibre-reinforced plastics, the pipe clamp (2) has everted edges (7) on both sides in radial direction, and has internal flanging edges (9) in both ends in axial direction, a bolt hole (6) is provided at everted edges on both sides in radial direction, where connection of bolt (5) is applied, elastic plastic or rubber conjoined sealing ring (3) are provided at inner side of the pipe clamp (2) and peak external wall at end joint of the both pipes (1). The bolt (5) passes through the bolt hole (6) to fasten with a screwed cap (8) to couple the both pipes, the working principle is using compression of pipe clamp inner wall and corrugated pipe peak top to compress the sealed rubber ring to prevent water from flowing outside of the pipes, thereby achieving function of sealing and anti-leakage, the pipe clamp and the corrugated pipe body are connected firmly and reliably, good water-sealing capability, corrosion protection and convenient construction are obtained.

Description

The bellows link

Technical field

The utility model belongs to the technical field that supplying drainage is laid, and specifically is a kind of technological improvement of link.

Background technique

Bellows is to begin 1920's, from the alternative reinforced concrete pipe of external introduction as main municipal administration with burying ground draining, drain pipe, the connecting means of two pipes is to put rubber seal at the trough place of bellows afterbody one end (the straight barrel that there is not enlarging), on the mouth of pipe of the band enlarging of the insertion the other end, to play sealing (closing water) interconnect function.Because enlarging tubing in process of production, be to carry out the enlarging processing of the mouth of pipe after the extrusion modling of straight body bellows more earlier, add and tend to man-hour cause whole tubing to be scrapped, so production enlarging tubing to exceed much than the cost of production of only producing straight barrel material because of quality problems appear in enlarging.In addition,, produce straight barrel and then can produce 9 meters, 12 meters or longer, be beneficial to subtract end cost of transportation and improve engineering construction speed because present manufacturing mechanism is produced flared tube and can only be produced 6 meters long tubing.Also because the enlarging place wall thickness of flared tube is subjected to the restriction of bellows wall material thickness, and the ring stiffness at enlarging position and anti-expanding ability are relatively poor relatively, cause seepage because of being out of shape or ftractureing easily when construction and installation, big more this defective of the diameter of tubing is obvious more.

Summary of the invention

The purpose of this utility model provides a kind of bellows link, and the connection between two pipes is not firmly leaked more.

The technical solution of the utility model is, comprise the pipe clamp that a pair of semiorbicular plastics or glass fiber reinforced plastic are made, respectively there is outer rotating edge the radially both sides of pipe clamp, and axially there is in-flanges at two ends, radially the outer rotating edge place of both sides has bolt hole, penetrates bolt and connects.

The in-flanges at the axial two ends of pipe clamp be used between pipe clamp and two bellowss radially with axial restraint, prevent the displacement of two tube and tube folder.

The inboard crest outer wall with two pipe end joints of pipe clamp is placed flexible plastics or rubber disjunctor seal ring.

The connection of pipe clamp and bellows, the pair of pipes clip is at the tube head place of the bellows of two butt joints, the in-flanges at the axial two ends of pipe clamp is stuck in the trough of bellows, inboard plastics or the rubber disjunctor seal ring placed of pipe clamp, penetrate bolt in the bolt hole of the radially both sides outer rotating edge of pipe clamp, be fastenedly connected.

Bolt is tightened up and two pipes can be connected with nut, thereby this working principle is to utilize the compressing at pipe clamp inwall and bellows crest top to make outside the interior water outlet pipe of sealed rubber ring compression blocking tube, reach the effect of sealing leakage proof, this pipe clamp and bellows body firm and reliable connection, Watertightness can be splendid, can be anticorrosion, easy construction.By contrast, using above-mentioned pipe clamp to be connected with straight body bellows from the overall cost and the distant enlarging that is better than the enlarging bellows of reliability of integral body connects.

Description of drawings

Fig. 1 is a plan view of the present utility model;

Fig. 2 is the B portion zoomed-in view of Fig. 3;

Fig. 3 is that Fig. 2 A-A is a sectional view, shows pipe clamp and bellows connection state;

Fig. 4 is the plan view of Fig. 3;

Fig. 5 is an explosive view of the present utility model.

Embodiment

Now in conjunction with the accompanying drawings, describe concrete structure of the present utility model, as shown in Figure 2,1 is bellows, and 2 is pipe clamp, and 3 is seal ring; And for example shown in Figure 5, pipe clamp 2 make-ups that two semiorbicular plastics or glass fiber reinforced plastic are made, respectively there is outer rotating edge 7 the radially both sides of pipe clamp 2, axially there is in-flanges 9 at two ends, radially outer rotating edge 7 places of both sides have a plurality of bolts hole 6, bolt 5 penetrates bolt hole 6, and bolt 5 is connected with nut 8.Pipe clamp 2 inboards are lined with flexible plastics or rubber disjunctor seal ring 3.

Claims

1, a kind of bellows link, comprise the pipe clamp that a pair of semiorbicular plastics or glass fiber reinforced plastic are made, respectively there is outer rotating edge (7) the radially both sides that it is characterized in that pipe clamp (2), axially there is in-flanges (9) at two ends, radially the outer rotating edge place of both sides has bolt hole (6), penetrates bolt (5) and connects.

2,, it is characterized in that the crest outer wall of pipe clamp (2) inboard and two pipes (1) end joint is placed flexible plastics or rubber disjunctor seal ring (3) according to the described bellows link of claim 1.

3, according to the described bellows link of claim 1, it is characterized in that the connection of pipe clamp (2) and bellows (1), a pair of pipe clamp (2) is buckled in the tube head place of the bellows (1) of two butt joints, the in-flanges at the axial two ends of pipe clamp (2) is stuck in the trough of bellows (1), inboard plastics or the rubber disjunctor seal ring (3) placed of pipe clamp (2), penetrate bolt (5) in the bolt hole (6) of the radially both sides outer rotating edges (7) of pipe clamp, be fastenedly connected.