CN2714930Y

CN2714930Y - Straight pin pipe connecting device

Info

Publication number: CN2714930Y
Application number: CN 03219005
Authority: CN
Inventors: 刘伯荣
Original assignee: 刘静丽
Priority date: 2003-06-02
Filing date: 2003-06-02
Publication date: 2005-08-03
Anticipated expiration: 2013-06-02

Abstract

The utility model relates to a straight inserting type pipeline connecting device used in the course of the installation of pipeline engineering, which comprises a center section, a sealing ring, a sealing stop ring, a clamping tile, tightening screw bolts, screw nuts, clamping screw bolts, and screw nuts, wherein, the center section is matched with the diameter of a pipeline which needs connecting; the clamping tile, the sealing stop ring, and the sealing ring are sheathed in the pipeline in sequence from outside to inside, and the clamping tile, the sealing stop ring, the sealing ring, and the pipeline are inserted in the center section together; the clamping tile is composed of a semicircular tile or a plurality of equant circular arc-shaped tiles, and the semicircular tile or a plurality of equant circular arc-shaped tiles are matched with the outer diameter of the pipeline; the outside of the clamping tile is also provided with a plurality of clamping ears in which the tightening screw bolts are arranged; the clamping tile is provided with a plurality of clamping ears in which the clamping screw bolts are arranged. When the utility model is used for the installation, the pipeline can not be mechanically processed, and the requirement for the cutting precision of the pipeline is low. Therefore, the utility model can reduce the thickness of the wall of the installed pipeline and can reduce the engineering cost of the installation of the pipeline, and the pipeline is fast and conveniently installed.

Description

Direct insertion assembling pipe joint

Technical field

The utility model relates to a kind of connection set in the pipework installation process.

Background technique

At present, in the middle of the various pipes project installation, various Placements need that all pipeline is carried out machining and can connect.Because machining will inevitably reduce the effective thickness of pipeline, therefore, in the pipework installation process, in order to guarantee seldom to measure the pipeline strength of attachment portion, have to increase the wall thickness of all pipelines, thereby cause the great deal of raw materials waste, increased piping erection engineering expense greatly.Usually the Placement that adopts has: welding, flange weld, are threaded, clip connected.Wherein, be threaded and be widely used in the small-caliber pipeline that nominal diameter is less than or equal to 100mm or 50mm and connect.For the connection than big-diameter pipeline of nominal diameter more than or equal to 100mm, comparatively general Placement is that welding, flange connect or the groove type clip connected both at home and abroad.But use the groove type clip generally need be on pipeline grooving or slot rolling, no matter be grooving or slot rolling, can destroy the intensity of pipeline equally.Use the groove type clip, seepage takes place after causing piping erection in engineering cost height not only, and often can cause mouth of pipe distortion when slot rolling.

The patent No. be ZL002613905's " a kind of pipeline connection fittings ", though overcome above-mentioned defective, still exist installation process to use a fairly large number of deficiency of bolt, but also need cover installation special tool a---special flange.

The model utility content

The purpose of this utility model is to overcome the defective of above-mentioned various connection fittings, be on the basis of " a kind of pipeline connection fittings " of ZL002613905 in the patent No., provide a kind of neither the needs that pipeline is carried out machining, also do not need to install the direct insertion assembling pipe joint of special flange.

Above-mentioned purpose of the present utility model realizes as follows: it includes middle segmentum intercalaris, seal ring, Sealing shield ring, clamping tile, turnbuckle and nut, clamping bolt and nut.Wherein, middle segmentum intercalaris is complementary by the diameter with required connecting tube and inboard round pipe collar or the straight-through pipe collar that is provided with the two-stage projection constitutes, clamping tile, Sealing shield ring and seal ring are enclosed within on the pipeline from outside to inside successively, and in being inserted in together with pipeline in the segmentum intercalaris, clamping tile is made of semicircle or the some equal portions arc type tiles with the outer diameter tube coupling, be arranged with a plurality of tension ears in the outside of clamping tile, turnbuckle is located in the round bolt hole of tension ear on the clamping tile, be set with tightening nut in the turnbuckle outer end, be equipped with the clamping ear at the semicircle of clamping tile or the butt joint edge place of equal portions arc type tile, clamping bolt is located in the round bolt hole that clamps ear, is set with turnbuckle in the clamping bolt outer end.

During piping erection, seal ring, Sealing shield ring, clamping tile are enclosed within on the pipeline successively, and in pipeline inserts segmentum intercalaris, clamping tile and middle segmentum intercalaris or clamping tile and clamping tile are under the effect of turnbuckle and nut, Sealing shield ring and seal ring are compressed vertically, thereby make the seal ring distortion realize sealing, tighten clamping bolt then and finish installation.In order to increase the frictional force between clamping tile and the pipeline, can also add the material that other can increase friction therebetween.

The utility model welds with existing welding, flange, is threaded, the clip connected technology is compared: pipeline is connected not to be needed pipeline is carried out any machining, in the pipework installation process, can reduce the wall thickness of institute's pipe laying, thereby reduce piping erection engineering expense greatly; With the patent No. is that " a kind of pipeline connection fittings " of ZL002613905 are compared: not only reduced the bolt quantity that installation process is used, do not need to install special flange, and, middle segmentum intercalaris is the two-stage projection, the effect of first order projection is that the pipeline insertion is spacing, the effect of second level projection is to make the cross section, position of pipeline insertion and the preceding end section of seal ring not on same plane, thereby reduces the required precision of piping erection to the pipeline cutting.Therefore, it is low to the utlity model has the pipework expense, and more convenient, characteristics more efficiently are installed.

Description of drawings

Fig. 1 is the mounting structure figure when segmentum intercalaris is for straight-through pipe collar in the utility model.

Fig. 2 is that segmentum intercalaris is a structural drawing when leading directly to pipe collar in the utility model.

Fig. 3 is the structural drawing of the utility model clamping tile when being semicircle, also is the B-B sectional drawing of Fig. 4.

Fig. 4 is the A-A sectional drawing of Fig. 3.

Fig. 5 is the mounting structure figure when segmentum intercalaris is threeway in the utility model.

Embodiment

As shown in the figure, segmentum intercalaris 1, seal ring 2, Sealing shield ring 3, clamping tile 4, turnbuckle 5 and nut 6, clamping bolt 7 and nut 8 during direct insertion assembling pipe joint described in the utility model comprises.

Wherein: the structure of clamping tile 4 as shown in Figure 3 and Figure 4, it watt constitutes with the semicircle camber of pipeline 9 external diameters couplings by two, two butt joint edge places are provided with one and clamp ear 12 in the every semicircle camber watt outside, clamp on the ear 12 round bolt hole is set, so that clamping tile 4 by clamping bolt 7 and nut 8, makes clamping tile 4 and pipeline 9 clamp; In addition in the outside of every semicircle camber watt also symmetry be provided with two tension ears 11, on the tension ear 11 round bolt hole is set, so that tension watts 12 makes clamping tile 4 endwisely slip along pipeline 9 by turnbuckle 5 and nut 6.

Middle segmentum intercalaris 1 and pipeline 9 external diameters coupling, by round pipe collar shown in Figure 2 and several tension ears 11 of its arranged outside, the two-

stage projection

13,14 that the inboard is provided with is formed.The structure of segmentum intercalaris also can be straight-through pipe collar, valve and other pipe fittings or the pipe-line equipment that uses during pipeline connects in above-mentioned.Central segmentum intercalaris 1 is when leading directly to pipe collar (referring to Fig. 1), also can not establish tension ear 11 on the middle segmentum intercalaris 1.

Mounting structure of the present utility model can be referring to Fig. 1,5.During installation, from outside to inside successively with clamping tile 4, Sealing shield ring 3, seal ring 2 chucks on pipeline 9, and make it to be inserted in the middle segmentum intercalaris 1 together with pipeline 9, by turnbuckle 5 and nut 6, clamping tile 4 is slided along pipeline axial, and compresses seal 4 distortion realize sealing, tighten clamping bolt 7 and nut 8 then, make clamping tile 4 and pipeline 9 clamp locking, thereby finish installation.

Claims

1, a kind of direct insertion assembling pipe joint, comprise middle segmentum intercalaris (1), seal ring (2), Sealing shield ring (3), clamping tile (4), turnbuckle (5) and nut (6), clamping bolt (7) and nut (8), it is characterized in that middle segmentum intercalaris (1) is complementary by the diameter with required connecting tube (9) and the inboard is provided with two-stage projection (13,14) round pipe collar or straight-through pipe collar constitute, clamping tile (4), Sealing shield ring (3) and seal ring (2) are enclosed within on the pipeline (9) from outside to inside successively, and be inserted in the middle segmentum intercalaris (1) together with pipeline (9), clamping tile (4) is made of semicircle or the some equal portions arc type tiles with pipeline (9) external diameter coupling, be arranged with a plurality of tension ears (11) in the outside of clamping tile (4), turnbuckle (5) is located in clamping tile (4) and goes up in the round bolt hole of tension ear (11), be set with tightening nut (6) in turnbuckle (5) outer end, be equipped with clamping ear (12) at the semicircle of clamping tile (4) or the butt joint edge place of equal portions arc type tile, in the round bolt hole of the clamping ear (12) that clamping bolt (7) is located in, be set with turnbuckle (8) in clamping bolt (7) outer end.

2, direct insertion assembling pipe joint according to claim 1 is characterized in that middle segmentum intercalaris (1) is made of several tension ears (11) and the inboard two-stage projection (13,14) that is provided with of round pipe collar and its arranged outside.

3, direct insertion assembling pipe joint according to claim 1 is characterized in that middle segmentum intercalaris (1) is made of the straight-through pipe collar that the inboard is provided with two-stage projection (13,14).