CN205331702U

CN205331702U - Compound sealing end coupling of awl superhigh pressure

Info

Publication number: CN205331702U
Application number: CN201521079789.0U
Authority: CN
Inventors: 耿志学
Original assignee: HAIYAN PIPE MEMBER MANUFACTURING Co Ltd
Current assignee: HAIYAN PIPE MEMBER MANUFACTURING Co Ltd
Priority date: 2015-12-22
Filing date: 2015-12-22
Publication date: 2016-06-22
Anticipated expiration: 2025-12-22

Abstract

The utility model relates to a compound sealing end coupling of awl superhigh pressure. Current terminal coupling exists withstand voltage lowly, the poor shortcoming of sealing reliability. The utility model discloses a cutting ferrule formula connects the body, and the cutting ferrule formula connects internal being equipped with and connects body through -hole, and its characteristics are: still include sealing end, O shape circle and nut, the anterior outside -in who connects body through -hole is frustum -shaped holes and cylindrical hole in proper order, the wall of cylindrical hole is provided with the round boss, sealing end's front end is equipped with the round closed angle, be equipped with the blind hole among the sealing end, be equipped with the round recess in the propulsion portion, the nut through -hole is including the internal thread portion that connects gradually, the locking portion and the columniform portion of cup jointing of round platform shape, nut and cutting ferrule formula connect body threaded connection and fix sealing end, sealing end's front portion is located the joint body through -hole that the cutting ferrule formula connects the body, the round closed angle top that is located the sealing end front end connects the round boss of the body in the cutting ferrule formula. The utility model discloses a sealing reliability is good, withstand voltage height, wide applicability.

Description

Cone supertension compound seal terminal conduit joint

Technical field

This utility model relates to a kind of terminal conduit joint, especially relates to a kind of cone supertension compound seal terminal conduit joint。

Background technology

The ferrule-type compression joint passing through to meet ISO8434-1 (GB/T3733～3765-2008) standard at present connects in formation hydropneumatic pipe-line system closed-loop path, there are many occasions need to leave spare duct interface for meeting the technological process requirements such as aerofluxus, blowdown, shunting, or for reserving pipe interface needed for meeting pipeline maintenance。Terminal conduit joint conventional on existing market is to carry out conical surface seal with O ring at the cone of real core, exist resistance to force down, the shortcoming of sealing reliability difference。Additionally, due to be real core body, weight is big, the shortcomings such as consumptive material is many。Sealing independent owing to simply using O again, its scope of application is subject to certain limitation。

Utility model content

The purpose of this utility model is in that to overcome above shortcomings in prior art, and provides a kind of reasonable in design, and sealing reliability is good, pressure height, widely applicable cone supertension compound seal terminal conduit joint。

The technical scheme in the invention for solving the above technical problem is: this cone supertension compound seal terminal conduit joint includes collar joint body, the outer wall of described collar joint body is provided with external screw thread, it is provided with fittings body through hole in this collar joint body, its construction features is in that: also include sealed terminal end, O and nut, the anterior ecto-entad of described fittings body through hole is followed successively by truncated cone-shaped hole and cylindrical hole, the wall of described cylindrical hole is provided with a circle boss, the front end of described sealed terminal end is provided with a circle wedge angle, this sealed terminal end is provided with blind hole, what the outer wall of described sealed terminal end was provided with the promotion part of truncated cone-shaped and truncated cone-shaped holds out against portion, described promotion part is provided with a circle for installing the groove of O, described nut is provided with nut through hole, described nut through hole includes the internal thread part being sequentially connected with, the tight lock part of truncated cone-shaped and cylindrical socket part, described O is arranged on groove, described nut and collar joint body are threaded and fixed by sealed terminal end, the front portion of described sealed terminal end is positioned at the fittings body through hole of collar joint body, the circle wedge angle being positioned at sealed terminal end front end withstands on a circle boss of collar joint body, the promotion part of described sealed terminal end and the truncated cone-shaped hole of collar joint body coordinate, the portion that holds out against of described sealed terminal end and the tight lock part of nut coordinate。

As preferably, the length of blind hole described in the utility model accounts for more than 1/2nd of sealed terminal end length。

As preferably, the length of blind hole described in the utility model is more than the length of promotion part。

As preferably, in collar joint body described in the utility model, the number of degrees of angle between two buses on the shaft section in truncated cone-shaped hole are 24 degree, and in described sealed terminal end, the number of degrees of angle between two buses on the shaft section of the promotion part of truncated cone-shaped are 24 degree。

As preferably, in sealed terminal end described in the utility model, the number of degrees of angle between two buses on the shaft section holding out against portion of truncated cone-shaped are 90 degree, and in described nut, the number of degrees of angle between two buses on the shaft section of the tight lock part of truncated cone-shaped are 90 degree。

As preferably, it is 24 degree that this utility model one encloses the number of degrees of the angle between two buses on the shaft section in the truncated cone-shaped that the bottom of groove is formed。

As preferably, the blind hole ecto-entad in sealed terminal end described in the utility model is followed successively by cylinder and cone。

As preferably, the promotion part of sealed terminal end described in the utility model contacts with the wall in the truncated cone-shaped hole of collar joint body, and the portion that holds out against of described sealed terminal end contacts with the tight lock part of nut。

As preferably, O described in the utility model contacts with the wall in the truncated cone-shaped hole of collar joint body。

As preferably, this utility model is positioned at a circle boss of a circle wedge angle press-in collar joint body of sealed terminal end front end。

This utility model is compared with prior art, have the following advantages and effect: have employed the metal to metal wedge angle with blind hole and seal the compound seal design of primary seal and the sealing of conical surface O pair, sealing property increases substantially, and can be effectively improved pressure grade, increase sealing reliability；Owing to metal to metal wedge angle is primary seal, so being not only suitable for sealing and the conveying of general fluid media (medium), but also can complete safely the fluid media (medium)s such as chemical industry, food, poisonous and harmful are sealed the conveying of sum。

Sealing principle of the present utility model: utilize the step of 24 ° of inner cone counterbores in collar joint body, sealed terminal end nut screwing clamping is assembled, nut promotes the sealed terminal end that 24 ° of cone metal to metal wedge angles seal, wedge angle is pressed in the step of 24 ° of inner cone counterbores of people, form reliable metal to metal seal；When the time comes, nut also promotes the sealed terminal end of 24 ° of cones supertension compound seal to enter 24 ° of internal taper holes of fittings body, until male cone (strobilus masculinus) laminating compresses seal with O ring in 24 °, forms conical surface O pair and seals。Meanwhile, in pipeline under the effect of intrinsic pressure tension Fa, the gap between 24 ° of conical surfaces will can be made to be reduced to the limit, sealing property and the compression resistance of O can be significantly improved。

Making of the present utility model is simple, easy for installation, have that rated operating pressure (pressure) is high, sealingly secure reliable, highly versatile, the pipe interface must closed when can be directly mounted at spare duct interface or pipe-line system maintenance in the pipe-line system that the ferrule-type compression joint meeting ISO8434-1 (GB/T3733～3765-2008) standard connects。

Installation method of the present utility model: by the nut interface screwed tight by sealed terminal end and corresponding collar joint body, when reach moment of torsion increase severely some time, then nut screwing clamping 1/4～1/3 is enclosed。

This utility model is adapted to conform with the hydropneumatic pipe-line system use of the ferrule-type compression joint of ISO8434-1 (GB/T3733～3765-2008) standard, tube outer diameter φ 6～φ 42 (extending to φ 60), operating pressure 10～63MPa。

Accompanying drawing explanation

Fig. 1 is the structural representation boring supertension compound seal terminal conduit joint in this utility model embodiment。

Fig. 2 is the structural representation of collar joint body in this utility model embodiment。

Fig. 3 is the structural representation of sealed terminal end in this utility model embodiment。

Fig. 4 is the structural representation in Fig. 3 after the amplification of A place。

Fig. 5 is the structural representation of O in this utility model embodiment。

Fig. 6 is the structural representation of nut in this utility model embodiment。

Detailed description of the invention

Below in conjunction with accompanying drawing and by embodiment, the utility model is described in further detail, and following example are that this utility model is not limited to following example to explanation of the present utility model。

Embodiment。

Referring to Fig. 1 to Fig. 6, the cone supertension compound seal terminal conduit joint in the present embodiment includes collar joint body 1, sealed terminal end 2, O 3 and nut 4。

In the present embodiment, the outer wall of collar joint body 1 is provided with external screw thread 14, it is provided with fittings body through hole 11 in this collar joint body 1, the anterior ecto-entad of fittings body through hole 11 is followed successively by truncated cone-shaped hole 12 and cylindrical hole 13, and the wall of cylindrical hole 13 is provided with a circle boss 15。

In the present embodiment, the front end of sealed terminal end 2 is provided with a circle wedge angle 26, this sealed terminal end 2 is provided with blind hole 21, the outer wall of sealed terminal end 2 is provided with the promotion part 23 of truncated cone-shaped and the portion that holds out against 25 of truncated cone-shaped, promotion part 23 is provided with a circle for installing the groove 22 of O 3。

The nut 4 of the present embodiment is provided with nut through hole 41, the socket part 44 of internal thread part 42, the tight lock part 43 of truncated cone-shaped and cylinder that nut through hole 41 includes being sequentially connected with。

O 3 in the present embodiment is arranged on groove 22, nut 4 and collar joint body 1 is threaded and is fixed by sealed terminal end 2, the front portion of sealed terminal end 2 is positioned at the fittings body through hole 11 of collar joint body 1, the circle wedge angle 26 being positioned at sealed terminal end 2 front end withstands on a circle boss 15 of collar joint body 1, the promotion part 23 of sealed terminal end 2 and the truncated cone-shaped hole 12 of collar joint body 1 coordinate, and the portion that holds out against 25 of sealed terminal end 2 and the tight lock part 43 of nut 4 coordinate。

In collar joint body 1 in the present embodiment, the number of degrees of angle α 1 between two buses on the shaft section in truncated cone-shaped hole 12 are 24 degree, and in sealed terminal end 2, the number of degrees of angle α 2 between two buses on the shaft section of the promotion part 23 of truncated cone-shaped are 24 degree。In sealed terminal end 2, the number of degrees of angle β 1 between two buses on the shaft section in the portion that holds out against 25 of truncated cone-shaped are 90 degree, and in nut 4, the number of degrees of angle β 2 between two buses on the shaft section of the tight lock part 43 of truncated cone-shaped are 90 degree。

Under normal circumstances, the length of the blind hole 21 in this utility model accounts for more than 1/2nd of sealed terminal end 2 length；The length of blind hole 21 is more than the length of promotion part 23；The number of degrees of the angle γ between two buses on shaft section in the truncated cone-shaped that the bottom of one circle groove 22 is formed are 24 degree；Blind hole 21 ecto-entad in sealed terminal end 2 is followed successively by cylinder and cone；The promotion part 23 of sealed terminal end 2 contacts with the wall in the truncated cone-shaped hole 12 of collar joint body 1, and the portion that holds out against 25 of sealed terminal end 2 contacts with the tight lock part 43 of nut 4；O 3 contacts with the wall in the truncated cone-shaped hole 12 of collar joint body 1；The circle wedge angle 26 being positioned at sealed terminal end 2 front end is pressed into a circle boss 15 of collar joint body 1。

Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, be named title etc. can be different, and the above content described in this specification is only to this utility model structure example explanation。All equivalences done according to the structure described in this utility model inventional idea, feature and principle change or simple change, are all included in the protection domain of this utility model patent。Described specific embodiment can be made various amendment or supplements or adopt similar mode to substitute by this utility model person of ordinary skill in the field; without departing from structure of the present utility model or surmount the scope that present claims book is defined, protection domain of the present utility model all should be belonged to。

Claims

1. a cone supertension compound seal terminal conduit joint, including collar joint body, the outer wall of described collar joint body is provided with external screw thread, it is provided with fittings body through hole in this collar joint body, it is characterized in that: also include sealed terminal end, O and nut, the anterior ecto-entad of described fittings body through hole is followed successively by truncated cone-shaped hole and cylindrical hole, the wall of described cylindrical hole is provided with a circle boss, the front end of described sealed terminal end is provided with a circle wedge angle, this sealed terminal end is provided with blind hole, what the outer wall of described sealed terminal end was provided with the promotion part of truncated cone-shaped and truncated cone-shaped holds out against portion, described promotion part is provided with a circle for installing the groove of O, described nut is provided with nut through hole, described nut through hole includes the internal thread part being sequentially connected with, the tight lock part of truncated cone-shaped and cylindrical socket part, described O is arranged on groove, described nut and collar joint body are threaded and fixed by sealed terminal end, the front portion of described sealed terminal end is positioned at the fittings body through hole of collar joint body, the circle wedge angle being positioned at sealed terminal end front end withstands on a circle boss of collar joint body, the promotion part of described sealed terminal end and the truncated cone-shaped hole of collar joint body coordinate, the portion that holds out against of described sealed terminal end and the tight lock part of nut coordinate。

2. cone supertension compound seal terminal conduit joint according to claim 1, it is characterised in that: the length of described blind hole accounts for more than 1/2nd of sealed terminal end length。

3. cone supertension compound seal terminal conduit joint according to claim 1, it is characterised in that: the length of described blind hole is more than the length of promotion part。

4. cone supertension compound seal terminal conduit joint according to claim 1, it is characterized in that: in described collar joint body, the number of degrees of angle between two buses on the shaft section in truncated cone-shaped hole are 24 degree, in described sealed terminal end, the number of degrees of angle between two buses on the shaft section of the promotion part of truncated cone-shaped are 24 degree。

5. cone supertension compound seal terminal conduit joint according to claim 1, it is characterized in that: in described sealed terminal end, the number of degrees of angle between two buses on the shaft section holding out against portion of truncated cone-shaped are 90 degree, in described nut, the number of degrees of angle between two buses on the shaft section of the tight lock part of truncated cone-shaped are 90 degree。

6. cone supertension compound seal terminal conduit joint according to claim 1, it is characterised in that: the number of degrees of the angle between two buses on shaft section in the truncated cone-shaped that the bottom of a circle groove is formed are 24 degree。

7. cone supertension compound seal terminal conduit joint according to claim 1, it is characterised in that: the blind hole ecto-entad in described sealed terminal end is followed successively by cylinder and cone。

8. cone supertension compound seal terminal conduit joint according to claim 1, it is characterised in that: the promotion part of described sealed terminal end contacts with the wall in the truncated cone-shaped hole of collar joint body, and the portion that holds out against of described sealed terminal end contacts with the tight lock part of nut。

9. cone supertension compound seal terminal conduit joint according to claim 1, it is characterised in that: described O contacts with the wall in the truncated cone-shaped hole of collar joint body。

10. cone supertension compound seal terminal conduit joint according to claim 1, it is characterised in that: it is positioned at a circle boss of a circle wedge angle press-in collar joint body of sealed terminal end front end。