CN203628120U

CN203628120U - Expansion type mechanical tee joint

Info

Publication number: CN203628120U
Application number: CN201320871950.2U
Authority: CN
Inventors: 陈模
Original assignee: CHENGDU COMMON TUBE INDUSTRY Co Ltd
Current assignee: Chengdu Common Tube Group Co ltd
Priority date: 2013-12-27
Filing date: 2013-12-27
Publication date: 2014-06-04
Anticipated expiration: 2023-12-27

Abstract

The utility model belongs to the field of mechanical equipment and discloses an expansion type mechanical tee joint. A main body structure of the expansion type mechanical tee joint comprises an inner pipe, a tension bush, an outer ring, and a nut, wherein a through hole is formed in the center of the inner pipe, the tension bush, the outer ring, and the nut are arranged at one end of the inner pipe, a transition area of a joint of the inner pipe and a pipeline is a conical surface, the conical surface can be divided into four small sections, an outer ring is arranged on the outer portion of the conical surface, one end surface of the outer ring is an arc surface which is matched with the surface of an outer circle of the matched pipeline, the tension bush is arranged in the outer ring, a large seal ring is arranged on the outer portion of the tension bush, a small seal ring is arranged in a hole in the outer ring at the right end of the tension bush, the right end of the outer ring is connected with the nut, the nut is fixed on the inner pipe through a tightening thread, a flat square member is arranged at the right end of the inner pipe, and a pipe end thread is arranged on the outer portion of the right end of the inner pipe. The expansion type mechanical tee joint has the advantages of being light, convenient to construct and install, small in occupation space, and the like.

Description

A kind of expansion mechanical three-way

Technical field

The utility model belongs to engineering goods field, specifically belongs to a kind of expansion mechanical three-way being installed on pipeline.

Background technique

At present, in the feedwater and fire protection pipeline connecting, extensively adopt mechanical three-way at groove type for building, on pipeline, boring installation threeway is convenient to install take-off line.For being installed, this class threeway all needs with U-shaped structural member or U-bolt, mechanical three-way to be fixed on pipeline, this class accessory size is often all very large, and when the mechanical three-way of large pipeline is especially installed, accessory size is very large, consume a lot of steel, and will take the space of very large conduit shaft.

Model utility content

The purpose of this utility model is to overcome above-mentioned deficiency of the prior art and shortcoming, discloses a kind of lightweight, easy construction, is convenient to the expansion mechanical three-way installing, take up room little.

For reaching above-mentioned technical purpose, expansion mechanical three-way of the present utility model, the inner tube that is through hole by center and be positioned at the ringfeder of inner tube one end, outer ring, nut forms its agent structure, described inner tube and pipeline junction transition zone are the conical surface, described conical surface outside is provided with outer ring, an end face of described outer ring is the cambered surface matching with phase distribution pipes outer round surface, in described outer ring, there is ringfeder, there is big sealing ring described ringfeder outside, in the hole of described ringfeder right-hand member outer ring, there is small sealing ring, described outer ring right-hand member is provided with nut, described nut is fixed in inner tube by threaded together, the right-hand member of described inner tube is provided with flat side, and inner tube right-hand member outside is provided with pipe thread.

For making technique effect of the present utility model reach best, the outer ring internal diameter of the utility model expansion mechanical three-way is identical with ringfeder outside dimension.

As another kind of preferred version of the present utility model, the wherein said conical surface can be provided with point tapering breach such as four roads.

Owing to having adopted technique scheme, the beneficial effects of the utility model are: 1) because inner tube and pipeline junction transition zone are the conical surface, its conical surface and the pipeline inner circle of installing match, and can avoid mechanical three-way by spanner switching after being arranged on pipeline, and then avoid mechanical three-way to lose efficacy; 2) described outer ring end face is the cambered surface matching with phase distribution pipes outer round surface, between the two, can fit completely, simultaneously owing to adding ringfeder, in specific operation, can make ringfeder distortion by fastening nuts, and then be stuck in the hole that pipeline offers the good sealability of big sealing ring and small sealing ring in addition completely, make it that accidents such as leakage in use can not occur, it is very convenient to install; 3) simultaneously, the large cylindrical of inner tube and the transition zone of little cylindrical are processed into after the conical surface, also can process at conical surface place point tapering breach such as four roads, make original conical surface become four segments, can in installation process, prevent from spinning equally; 4) be screw thread at the little cylindrical the other end, nut be installed, with screw thread near be a flat side in place, the inner tube end beyond flat side is screw thread, when connect other pipe fitting on pipe thread time, flat horizontal is put spanner, prevents switching mechanical three-way in the time that pipe fitting is installed.

Accompanying drawing explanation

Fig. 1 is the utility model expansion mechanical three-way plan view;

Fig. 2 is the utility model expansion mechanical three-way schematic diagram while being installed on pipeline;

Fig. 3 is the utility model expansion mechanical three-way embodiment stereogram;

Fig. 4 is the utility model expansion mechanical three-way embodiment 1 inner tube plan view;

Fig. 5 is the utility model expansion mechanical three-way embodiment 1 inner tube plan view;

Fig. 6 is the utility model expansion mechanical three-way embodiment 2 inner tube plan views;

Fig. 7 is the utility model expansion mechanical three-way embodiment 2 inner tube A-A sectional views.

In accompanying drawing, be respectively labeled as: the flat side 10-of 1-inner tube 2-nut 3-ringfeder 4-outer ring 5-big sealing ring 6-small sealing ring 7-threaded together 8-pipe thread 9-conical surface 11-tetra-segment 12-tapering breach 13-pipelines.

Embodiment

In order to make the advantage of the purpose of this utility model and technological scheme clearer, below in conjunction with accompanying drawing and example, the utility model is further elaborated.

With reference to Fig. 1 ~ Fig. 3, expansion mechanical three-way of the present utility model, the inner tube that is through hole by center (1) and be positioned at the ringfeder (3) of inner tube one end, outer ring (4) and nut (2) form its agent structure, described inner tube (1) is the conical surface (10) with pipeline (13) joint transition zone, the described conical surface (10) outside is provided with outer ring (4), an end face of described outer ring (4) is the cambered surface matching with phase distribution pipes (13) outer round surface, in described outer ring (4), there is ringfeder (3), there is big sealing ring (5) described ringfeder (3) outside, in the hole of described ringfeder right-hand member outer ring (4), there is small sealing ring (6), described outer ring (4) right-hand member is provided with nut (2), described nut (2) is fixed in inner tube (1) by threaded together (7), the right-hand member of described inner tube (1) is provided with flat side (9), and inner tube (1) right-hand member outside is provided with pipe thread (8), outer ring (4) internal diameter is identical with ringfeder (3) outside dimension.

When use, select the expansion mechanical three-way of correspondingly-sized according to the specification of connected pipe (13), select the drill bit in the upper boring of pipeline (steel pipe) being applicable to according to the specification of expansion mechanical three-way, use pipe piercing machine on steel pipe, to get out the hole that expansion mechanical three-way is installed, after removing the burr of orifice edge, the inner tube of expansion mechanical three-way (1) is filled in hole, ringfeder (3) is enclosed within inner tube (1), and with strength ringfeder (3) is inserted in the hole of pipeline (13), put big sealing ring (5) well and small sealing ring (6) is installed suitable outer ring (4) afterwards, itself and pipeline (13) are fitted completely, a hand steered firmly expansion mechanical three-way afterwards, a hand uses the nut (2) on spanner rotation expansion mechanical three-way, nut (2) rotates on one side, gradually inner tube (1) is outwards extracted, the wave conical surface (10) in inner tube (1) is out of shape ringfeder (3), finally make mechanical three-way be fixed on steel pipe.

Further, the flat side (9) of inner tube (1) right-hand member and pipe thread (8), when at other pipe fitting of the upper connection of pipe thread (8), flat side (9) locates to put spanner, prevents switching mechanical three-way in the time that pipe fitting is installed.

Embodiment 1:

With reference to Fig. 4 and Fig. 5, the utility model expansion mechanical three-way embodiment 1 inner tube plan view and the utility model expansion mechanical three-way embodiment 1 inner tube plan view, inner tube (1) is the conical surface (10) with pipeline (13) joint transition zone, the conical surface (10) matches with the pipeline inner circle of installing, after being arranged on pipeline, can avoid mechanical three-way by spanner switching, and then avoid mechanical three-way to lose efficacy.

Embodiment 2:

The utility model expansion mechanical three-way embodiment 2 inner tube plan view (Fig. 6) and Fig. 7: the utility model expansion mechanical three-way embodiment 2 inner tube A-A sectional views, the conical surface (10) can be provided with point tapering breach (12) such as four roads, the conical surface (10) is divided into four segments (11), in installation process, prevents from spinning.

Above; it is only better embodiment of the present utility model; but protection domain of the present utility model also more than that; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement; within all should being encompassed in protection domain of the present utility model, therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims was defined.

Claims

1. an expansion mechanical three-way, it is characterized in that: the inner tube that is through hole by center and the ringfeder, outer ring, the nut that are positioned at inner tube one end form its agent structure, described inner tube and pipeline junction transition zone are the conical surface, described conical surface outside is provided with outer ring, an end face of described outer ring is the cambered surface matching with phase distribution pipes outer round surface, in described outer ring, there is ringfeder, there is big sealing ring described ringfeder outside, described ringfeder right-hand member has small sealing ring, described outer ring right-hand member is connected with nut, and described nut is fixed in inner tube by threaded together; The right-hand member of described inner tube is provided with flat side, and inner tube right-hand member outside is provided with pipe thread.

2. expansion mechanical three-way according to claim 1, is characterized in that: described outer ring internal diameter is identical with ringfeder outside dimension.

3. expansion mechanical three-way according to claim 1, is characterized in that: the described conical surface can be provided with point tapering breach such as four roads.