CN203363455U

CN203363455U - Mechanical seal connector assembly for metal corrugated pipe

Info

Publication number: CN203363455U
Application number: CN 201320408156
Authority: CN
Inventors: 马懿宣; 朱广松
Original assignee: Aerosun Corp
Current assignee: Aerosun Corp
Priority date: 2013-07-10
Filing date: 2013-07-10
Publication date: 2013-12-25
Anticipated expiration: 2023-07-10

Abstract

The utility model relates to a mechanical seal connector assembly for a metal corrugated pipe. The mechanical seal connector assembly for the metal corrugated pipe comprises a connector, a nut and a metal ring. A groove matched with the corrugate shape of the metal corrugated pipe is formed in the inner side of the metal corrugated pipe, the nut is arranged on the metal corrugated pipe in a sleeved mode, and the metal ring wraps the end, to be connected, of the metal corrugated pipe. Slope surfaces or spherical surfaces extending outwards are arranged at the connection end of the connector, threads matched with the nut are arranged outside the connector, the connection end of the connector is inserted in the end, to be connected, of the metal corrugated pipe wrapped by the metal ring, and is connected to and fixed to the threads outside the connector through the nut. The mechanical seal connector assembly for the metal corrugated pipe is simple in structure and convenient to install. According to the mechanical seal connector assembly for the metal corrugated pipe, special tools are not needed, the shape and the flatness of the notch portion of the corrugated pipe do not need to be considered, and the economy is high. The performance of the mechanical seal connector assembly for the metal corrugated pipe is still higher than that of a non-metallic gasket sealing mode under the same work condition after the mechanical seal connector assembly for the metal corrugated pipe is disassembled and assembled repeatedly. The mechanical seal connector assembly for the metal corrugated pipe belongs to the technical field of pipeline engineering, equipment manufacturing, fire safety and the like.

Description

The effective mechanical sealing joint assembly of a kind of wavy metal

Technical field

The utility model relates to a kind of SEALING FITTING, a kind of between metal bellows and being connected and the effective mechanical sealing joint assembly of wavy metal of sealing of metal bellows and other pipelines specifically, belong to pipework, device fabrication, security against fire equipment technology field.

Technical background

The existing metal bellows of China connects, sealing means is mainly to adopt the form of putting into nonmetallic gasket between connection part.Because nonmetallic gasket has the characteristics such as easy aging and non-refractory, therefore there is potential safety hazard in long-term the use.In addition, the metal bellows of current part purposes, as water pipe and combustion gas conveying pipe, install again the mode of pad after ripple is struck in many employings when installation additional, but this kind of mounting type needs special tools such as " striking mode ", install loaded down with trivial detailsly, be unfavorable for the popularization of project installation.

The model utility content

The purpose of this utility model is: the defect existed for above-mentioned prior art proposes the effective mechanical sealing joint assembly of a kind of wavy metal, not only convenience and high-efficiency, safety durable but also have higher Economy.

In order to reach above purpose, the utility model provides a kind of wavy metal effective mechanical sealing joint assembly, comprise joint, nut and metal ring, described metal ring inboard has the groove with the metal corrugated tube waveform coupling, described nut sleeve is on metal bellows, and described metal ring is coated on the end to be connected of metal bellows; Described joint connecting end has outward extending domatic or sphere, there is the screw thread with described nut coupling in the outside of described joint, the connecting end of described joint inserts the end to be connected of the metal bellows coated by described metal ring, by the outside screw of described nut and joint, is connected and fixed.

The effective mechanical sealing joint assembly of aforesaid wavy metal, described metal ring is two valve structures, and inboard groove can coat at least one complete waveform.

The effective mechanical sealing joint assembly of aforesaid wavy metal, described ringle two ends have the domatic or sphere with the inside contraction of the domatic or sphere of described joint connecting end coupling.

Further, the effective mechanical sealing joint assembly of aforesaid wavy metal, the domatic or sphere front end of described joint also extend one section with the integrated guide cylinder structure of joint, led and located in order to insert bellows.

With existing Placement, compare, the utility model is taked rigid sealing means, thereby cardinal principle is intermetallic pushes corrugated tube end is formed to sealing mutually, eliminated the aging security risk caused of nonmetallic gasket, long service life, and high temperature resistant, be particularly useful for high temperature place and fire prevention key position; Simultaneously, the utility model is compared the nonmetallic gasket sealing and can be tolerated more high pressure; In addition, because the utility model is simple in structure, and need not consider shape and the flatness of bellows incision construction cost to be reduced greatly, stronger Economy is arranged.

The accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is the axle side structure schematic diagram that waits of the present utility model.

The sectional drawing that Fig. 2 is Fig. 1.

Schematic diagram after the assembling that Fig. 3 is Fig. 1.

Embodiment

Embodiment 1

The present embodiment provides a kind of wavy metal effective mechanical sealing joint assembly, and structure as shown in Figure 1 to Figure 3, comprises joint 6, metal bellows 9, nut 8 and metal ring 7.Its middle joint 6 connecting ends have domatic 1 and guide cylinder 2, and there is chamfering 3 end of guide cylinder 2, in order to insert bellows, is led and locates; Metal ring 7 is two valve structures, and its internal surface 5 is ripple groove, can fit and coat a complete waveform of bellows 9, and its two ends have the domatic 4 of inside contraction, in order to the domatic 1 coupling laminating of joint.

During construction, at the trough place of Len req, bellows is blocked, be inserted in nut, with metal ring, second ripple of its end enveloped to rear integral body and push nut, bellows is fixed in nut; Then by joint precession nut, guide cylinder 2 inserts bellows and makes it coaxial with joint; With spanner by joint and nut screwing clamping, now domatic 1 of joint with domatic 4 of metal ring, first ripple of bellows can be squeezed into to groove, due to the domatic 4 one-tenth same angles of this embodiment's middle joint domatic 1 and metal ring, so the groove place forms the face sealing that reliability is stronger.

Experimental results show that, the present embodiment performance after the several repeated disassembled and assembled still significantly higher than same operating mode under the nonmetallic gasket sealing means, and because the utility model assembly all adopts the Cuprum alloy manufacture, suitable intensity is not only arranged but also certain softness is arranged, therefore need not take shape and the flatness of bellows incision into account, needn't repeatedly cut bellows, not only can long-term safety effectively use, and reduced difficulty of construction and construction cost, stronger Economy is arranged.

In addition to the implementation, the utility model can also have other mode of executions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims

1. the effective mechanical sealing joint assembly of wavy metal, it is characterized in that: comprise joint, nut and metal ring, described metal ring inboard has the groove with the metal corrugated tube waveform coupling, and described nut sleeve is on metal bellows, and described metal ring is coated on the end to be connected of metal bellows; Described joint connecting end has outward extending domatic or sphere, there is the screw thread with described nut coupling in the outside of described joint, the connecting end of described joint inserts the end to be connected of the metal bellows coated by described metal ring, by the outside screw of described nut and joint, is connected and fixed.

2. the effective mechanical sealing joint assembly of wavy metal according to claim 1, it is characterized in that: described metal ring is two valve structures, and inboard groove can coat at least one complete waveform.

3. the effective mechanical sealing joint assembly of wavy metal according to claim 1 and 2 is characterized in that: described ringle two ends have the domatic or sphere with the inside contraction of the domatic or sphere coupling of described joint connecting end.

4. the effective mechanical sealing joint assembly of wavy metal according to claim 1 is characterized in that: the domatic or sphere front end of described joint also extend one section with the integrated guide cylinder structure of joint.