CN201407438Y

CN201407438Y - Combined connecting piece

Info

Publication number: CN201407438Y
Application number: CN2009200090873U
Authority: CN
Inventors: 舒金发
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-23
Filing date: 2009-03-23
Publication date: 2010-02-17
Anticipated expiration: 2019-03-23

Abstract

A combined connecting piece comprises a pipe body, seal rings, connecting pieces and ring parts, wherein the pipe body is combined on the ring end of the connecting piece by the ring part to be fixedon the connecting piece, the pipe body is provided with a concave ring, the ring end of the connecting piece and the ring part can be combined into an integral ring-shaped port and are provided with convex strips which can be combined into a convex ring. When in installation, the body with the concave ring is slantly inserted into the seal ring in the inner cavity of the connecting piece, and thepipe body and the connecting piece are arranged on the same central axis, at this time, the convex strip on the ring end of the connecting piece is right clamped in the concave ring of the pipe body,and then the ring part is combined on the ring end of the connecting piece, while the convex strip on the port is simultaneously clamped in the concave ring of the pipe body, and then is combined withthe convex strip on the ring end of the connecting piece into the convex ring to lock the pipe body, so the connection is finished. The utility model has the advantages of compact structure, few andreasonable part, simple and convenient production and installation, simple technology, strong practicability and the like.

Description

A kind of and close link

[technical field]

This is to belong to a kind of link of carrying liquid, gas etc. with closing link, is particularly useful for having the sheet-metal duct connection aspect of seal request.

[background technique]

Pipeline and pipeline are realized in the interconnective structure by link, the difficult problem of a maximum is how to guarantee being connected firmly and sealing of link port and pipe end, particularly this structure is under the factor affecting of being vibrated, rocking etc., more cost of material to be reduced, effect firm and sealing can also be reached well.

A kind of " pipe fitting joint " disclosed as China's patent 02242868.2.Its structure comprises body, nut and external silk, and the tube wall of body front portion is provided with groove, is provided with snap ring in the groove, and the place ahead of snap ring also is provided with seal ring, for increasing the intensity of sheet-metal duct, is provided with lining in tube cavity.It adopts the sealing of link port inclined-plane, and fixes body at nut inner wall inclined-plane compressing snap ring with when pushing the seal ring sealing.The pipe fitting joint of this structure in actual applications, there are the following problems: 1, utilizing external silk is that the port inclined-plane of link cooperates with seal ring and reaches sealing, in vibration, rock under the factor affecting, seals poor stability.2, in body, set up lining after, though solved the problem of misalignment between link and the pipeline, help avoiding because of the influence to sealing such as the factor of vibrating, rock, but it is complicated that structure becomes, and, fixing and the sealing proportionate relationship of two linings and seal ring is difficult to coordinate, and also can influence the mobile unimpeded of conveying material, especially is not suitable for small-bore body and connects.For the heavy caliber body, then exist between body and lining double layer construction to play recessed difficulty, lining gap phenomenons such as deposite attack and sludge rot easily take place, thereby can influence the working life of link and body, poor reliability.

[summary of the invention]

In order to overcome the problems referred to above that prior art exists, the invention provides a kind of and close link, this is connected firmly, accessory is few, good seal performance, also can be kept good fastness and sealability even the influence of factor such as vibrate, rock, have simple in structure, production and processing convenient and the high advantage of reliability.

The technology that realizes above-mentioned scheme is as follows: a kind of and close link, include body, seal ring, link and ring are formed, body is by ring and is combined on the ring end of link fixing, described body is provided with scrobicular ring, the ring end of link and ring the two be equipped with can with the raised line of synthetic bulge loop, during installation the body that is provided with scrobicular ring is departed from the central port slightly and insert the seal ring that is placed in the link inner chamber sideling, ajust body and link again on same central axis, at this moment the raised line of link ring end just in time snaps in the body scrobicular ring, then ring is gone up and synthetic one complete ring port with being combined in to encircle to hold, the raised line that is provided with on the ring also snaps in the body scrobicular ring simultaneously, and the raised line of the two is locked the body scrobicular ring and finished and be connected with synthesizing bulge loop.

Its structure outline is: described connecting port is by the ring end of link and ring and amounts to finishing, and the two be equipped with can be by the raised line that forms complete bulge loop with closing.

Aforesaid and close link, it is characterized in that: body is provided with scrobicular ring, also can be provided with bulge loop.

Beneficial effect: compared with prior art, the ring end is the constituent element on the link, be by disposable production moulding, ring then is a separate part, ring end and ring at link are equipped with raised line, the raised line of the two is snapping in the scrobicular ring of body with the complete bulge loop of fashionable formation during installation, the seal ring that holds in the while link inner chamber, and the outer inclined-plane that makes seal ring that is squeezed in the two and the fashionable outside is close to extruding mutually and is finished sealing with the interior inclined hole face of link.So both guarantee the steadiness and the sealing that connect, also embodied the defective ejaculation of connected element and the convenience of installation.

Below in conjunction with drawings and Examples to this with close link and be described further.

[description of drawings]

Fig. 1 is the structure sectional view of present embodiment after assembling is finished;

Fig. 2 illustrates the schematic representation of connecting port when coupled condition and separated state (in the frame), and Fig. 5 shows the cross sectional representation of analysing and observe component upper connector separating end (being exactly part in the frame);

Fig. 3 is the sectional views of each parts of present embodiment when assembling;

Fig. 4 is the structure sectional view after the assembling of the another kind of design of present embodiment body;

Sequence number is represented respectively among the figure: body 1, scrobicular ring 11, seal ring 2, link 3, connecting ring end 31, raised

line

33,34, ring 32, bulge loop 35, fastener hole 36;

[embodiment]

Referring to Fig. 1, and in conjunction with Fig. 2 and Fig. 3, Fig. 1 is the structure sectional view of present embodiment after assembling is finished;

See Fig. 3, again in conjunction with Fig. 2, according to assemble sequence, from left to right, be followed successively by and connect 3, seal ring 2, body 1 and ring 32, the ring end 31 of link 3 is provided with raised line 33 among the figure, on body 1, be preset with scrobicular ring 11, sideling body 1 is inserted the seal ring 2 that is placed in link 3 inner chambers, ajust body 1 and link 3 again, make body 1 and link 3 on same central axis, and the normal position of also having ajusted seal ring 2, sealing guaranteed, contrast Fig. 1 again, the ring 32 that is provided with raised line 34 be combined on the ring end 31 of link 3 and synthetic one complete ring port, referring to Fig. 1, the fastening piece of operation fastener hole 36 make seal ring 2 when being squeezed outside it interior inclined hole face of inclined-plane and link 3 be close to more and finish the operation that is tightly connected.

Key in the present embodiment is to note: when mounted, scrobicular ring 11 set on the body 1 should be corresponding with the bulge loop 35 of connecting end, because the external diameter of body 1 is greater than bulge loop 35, so should insert body 1 sideling and place the seal ring 2 that connects 3 inner chambers, ajust body 1 and link 3 again, make the two on same central axis, at this moment the raised line 33 of link 3 ring ends 31 just in time snaps in the scrobicular ring 11 of body 1, its raised line 34 also just in time snaps in the scrobicular ring 11 of body 1 when closing ring 32, and and the raised line 33 and the synthetic bulge loop 35 of ring end 31.

Link 3 is two to lead to and connect port for present embodiment, Placement for each connecting port can be made adjustment as requested, for example, when adopting threeway to connect, a connecting end can adopt the described linkage structure of present embodiment, another connecting end then can adopt the mode that is threaded, even can adopt mode that is welded to connect or the like.

Referring to Fig. 4, and in conjunction with the connecting means of Fig. 3, Fig. 4 is another embodiment's of invention a structural representation, it and a last embodiment's difference only is that body 1 is provided with bulge loop 12, that is: the bulge loop 12 of body 1 is also placed the ring end 31 of link 3, the bulge loop 33 of ring end 31 changes the external diameter of flat choma with tight lock body 1 into, and other structure is identical with a last embodiment with working principle, does not repeat them here.

This with close the body and the link that are connected and can make for metallic material, also can make for nonmetallic material.

Claims

1, a kind of and close link, it is characterized in that by body (1), seal ring (2), link (3) and ring (32) are formed, body (1) is to be fixed on the link (3) being combined on link (3) the ring end (31) by ring (32), described body (1) is provided with scrobicular ring (11), the ring end (31) of link (3) can and ring (32) and synthetic one complete ring port, and the two port be equipped with can with the raised line (33 of synthetic bulge loop (35), 34), during installation the body (1) that is provided with scrobicular ring (11) is inserted the seal ring (2) that is placed in link (3) inner chamber sideling, ajust body (1) and link (3) again on same central axis, at this moment the raised line (33) of link (3) ring end (31) just in time is stuck in body (1) scrobicular ring (11), then ring (32) be combined on the ring end (31) of link (3), and set raised line (34) also is stuck in the scrobicular ring (11) of body (1) simultaneously and finish with the scrobicular ring (11) that link (3) ring holds raised line (33) and synthetic bulge loop (35) on (31) to lock body (1) jointly and to be connected.

2, according to claim 1 a kind of and close link, it is characterized in that body (1) is provided with scrobicular ring (11), also can establish bulge loop (12), for metallic material is made, also can make for nonmetallic material.

3, according to claim 1 a kind of and close link, the ring end (31) that it is characterized in that link (3) is provided with raised line (33), the raised line (34) that ring (32) is provided with when closing ring end (31) the two raised line (33,34) and synthesize bulge loop (35).

4, according to claim 1 a kind of and close link, it is characterized in that link (3) can be made by metallic material, also can make by nonmetallic material.