CN203431348U - Double-piece type connection pipe - Google Patents

Abstract

The utility model relates to a pipeline connection device, in particular to a double-piece type connection pipe which comprises a pair of sealing rubber mats, and a pair of single-piece pipe clamps arranged outside the sealing rubber mats in a sleeved mode. Each single-piece pipe clamp comprises a pipe body, pipe openings arranged at the two ends of the pipe body, and bolt holes formed in the two outer sides of the pipe body. Clamping copper rings are arranged in the pipe openings, the two inner sides of the pipe body are respectively provided with a concave groove, the two outer sides of each sealing rubber mat are respectively provided with a protruding opening, and the concave grooves are matched with the protruding openings. The double-piece type connection pipe is efficient, separation resistant, and good in sealing performance.

Description

Two-piece connecting tube

Technical field

The utility model relates to a kind of assembling pipe joint, particularly a kind of two-piece connecting tube.

Background technique

In PVC, PE pipeline are installed, normally utilize two ends with the joint of bellmouth shape, identical PVC, the insertion of PE pipeline of caliber to be connected; Or utilize one end PVC, PE pipeline to be connected with the connection set of bellmouth with flange, the other end.Working principle with the joint of bellmouth shape is: rubber seal is installed in bellmouth, resiliently deformable by rubber seal after pipeline inserts realizes seal for pipe joints, external diameter and the surface friction drag between rubber inside diameter by pipeline stops PVC, the displacement of PE pipeline axial simultaneously, plays object locking, anticreep; One end with flange, the other end with the working principle of the connection set of bellmouth is: the flange of one end utilizes bolt to be connected with the flange on PVC, PE pipeline, and the other end is connected with PVC, PE pipeline by rubber seal in bellmouth.Above-mentioned pipe connecting method, although simple to operate, easy to use, in the situations such as, insertion amount few, paved surface out-of-flatness large in outer diameter tube difference in size, the sealability of pipeline is difficult to guarantee, and easily causes axially and come off.

Summary of the invention

For solving the deficiencies in the prior art, the purpose of this utility model is to provide the pipeline connecting device of a kind of efficient, anticreep, good seal performance.

In order to realize above-mentioned target, the utility model adopts following technological scheme:

A kind of two-piece connecting tube, comprise a pair of seal rubber pad, be sleeved on a pair of monolithic pipe clamp outside seal rubber pad, described monolithic pipe clamp comprises body, be positioned at the mouth of pipe at body two ends, be positioned at the bolt hole in body two outsides, in the described mouth of pipe, there is clamping copper ring, described body two inner sides have and respectively have a recess groove, respectively there is a tang in described seal rubber pad two outsides, and described recess groove coordinates with described tang.

Described mouth of pipe cross section is isosceles trapezoid, and isosceles trapezoid upper base is less than goes to the bottom, and base angle angle is 75 °.

Described clamping copper ring cross section is isosceles trapezoid, and the upper base of isosceles trapezoid is less than goes to the bottom, and base angle angle is 75 °.

The groove depth of described recess groove is 3mm.

Described tang thickness is 3.5mm.

Usefulness of the present utility model is: the utility model is provided with recess groove in body inner side, matches with the tang in seal rubber pad outside, and this recess groove plays positioning limit effect to tang, prevents coupled becoming flexible, and sealability is better.

Accompanying drawing explanation

Fig. 1 is axial section structural representation of the present utility model.

The implication of reference character in figure: 1 two-piece connecting tube; 2 seal rubber pads; 3 monolithic pipe clamps; 31 bodys; 32 mouths of pipe; 33 bolts hole; 4 clamp copper ring; 34 recess grooves; 21 tangs.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is done to concrete introduction.

As shown in Figure 1, a kind of two-piece connecting tube 1, comprise a pair of seal rubber pad 2, be sleeved on a pair of monolithic pipe clamp 3 outside seal rubber pad, monolithic pipe clamp comprises body 31, be positioned at the mouth of pipe 32 at body 31 two ends, be positioned at the bolt hole 33 in 31 liang of outsides of body, in the mouth of pipe 32, there is the copper ring 4 of clamping, 31 liang of inner sides of body have and respectively have a recess groove 34, and respectively there is a tang 21 in 2 liang of outsides of seal rubber pad, and recess groove 34 coordinates with tang 21.A pair of monolithic pipe clamp 3 relies on bolt passing through bolt hole 33 to be connected and fixed.The mouth of pipe 32 cross sections are isosceles trapezoid, and isosceles trapezoid upper base is less than goes to the bottom, and base angle angle is 75 °.Clamping copper ring 4 cross sections is isosceles trapezoid, and the upper base of isosceles trapezoid is less than goes to the bottom, and base angle angle is 75 °.This angle makes the mouth of pipe become contraction mouth with clamping copper ring, when PVC, PE pipeline generation axial displacement, can limit it and move., recess groove 34 cooperatively interacts with tang 21, and the groove depth of recess groove 34 is 3mm, and tang 21 thickness are 3.5mm, and tang 21 thickness are greater than groove mouth 34 degree of depth, and tang 21 utilizes the elastic strain of seal rubber pad to clamp-on in groove mouth 34, strengthens sealing.

More than show and described basic principle of the present utility model, major character and advantage.The technician of the industry should understand, and above-described embodiment does not limit the utility model in any form, and all employings are equal to replaces or technological scheme that the mode of equivalent transformation obtains, all drops in protection domain of the present utility model.

Claims (5)

1. a two-piece connecting tube, comprise a pair of seal rubber pad, be sleeved on a pair of monolithic pipe clamp outside seal rubber pad, described monolithic pipe clamp comprises body, be positioned at the mouth of pipe at body two ends, be positioned at the bolt hole in body two outsides, in the described mouth of pipe, there is clamping copper ring, it is characterized in that, described body two inner sides have and respectively have a recess groove, and respectively there is a tang in described seal rubber pad two outsides, and described recess groove coordinates with described tang.

2. two-piece connecting tube as claimed in claim 1, is characterized in that, described mouth of pipe cross section is isosceles trapezoid, and isosceles trapezoid upper base is less than goes to the bottom, and base angle angle is 75 °.

3. two-piece connecting tube as claimed in claim 1, is characterized in that, described clamping copper ring cross section is isosceles trapezoid, and the upper base of isosceles trapezoid is less than goes to the bottom, and base angle angle is 75 °.

4. two-piece connecting tube as claimed in claim 1, is characterized in that, the groove depth of described recess groove is 3mm.

5. two-piece connecting tube as claimed in claim 1, is characterized in that, described tang thickness is 3.5mm.