CN205504068U

CN205504068U - Ball valve

Info

Publication number: CN205504068U
Application number: CN201620333284.0U
Authority: CN
Inventors: 项海林
Original assignee: Wenzhou Yidefu Tube Valve Co ltd
Current assignee: Wenzhou Yidefu Tube Valve Co ltd
Priority date: 2016-04-15
Filing date: 2016-04-15
Publication date: 2016-08-24
Anticipated expiration: 2026-04-15

Abstract

The utility model provides a ball valve, including valve body, spheroid, disk seat and valve rod, be equipped with media channel in the valve body, media channel is linked together with the pipeline, be equipped with ferrule structure between valve body and the pipeline, its characterized in that: ferrule structure is including all cup jointing lock nut, olive head, locking ring and the sealing washer on the pipeline, the both ends of olive head are the tilted end face, the locking ring is located between olive head and the sealing washer, and two axial terminal surfaces of locking ring lean on with the tilted end face of olive head and the terminal surface counterbalance of sealing washer respectively, lock nut's one end and valve body threaded connection, the other end form locking portion, when lock nut locks with the valve body, locking portion can produce the thrust to the valve body direction to olive head, locking ring and sealing washer three, makes olive head and pipeline chucking, makes sealing washer and valve body and seal for pipe joints cooperation. The utility model provides a when ball valve realizes fixing with the pipeline chucking, sealing up between valve body and the pipeline has been improved.

Description

A kind of ball valve

Technical field

This utility model relates to a kind of valve, particularly relates to a kind of ball valve.

Background technology

Ball valve be mainly characterized by compact conformation own, seal reliable, simple in construction, easy to maintenance, sealing surface and sphere often exist Closure state, is difficult to by medium erosion, it is easy to Operation and maintenance, it is adaptable to the general works such as water, solvent, acid and natural gas are situated between Matter, but also it is applicable to the medium that working condition is severe, such as oxygen, hydrogen peroxide, methane and ethylene etc., obtain in every profession and trade It is widely applied.Ball valve body can be overall, it is also possible to is knockdown.Cutting ferrule ball valve is one therein, cutting ferrule ball Coordinating that on the one hand sealing principle of valve is dependent between valve inner realizes sealing, is on the other hand dependent on valve body two ends and pipe Ferrule structure between road realizes fixing between valve body and pipeline and seals, the fixing and sealing of the latter be with Pipe installing Formed during cooperation, therefore, carry out the good fixing and sealing at ferrule structure, the normal work after the installation of guarantee valve.

Utility model content

Based on the problems referred to above, this utility model purpose is to provide a kind of simple in construction, easy to operate, solid between valve body and pipeline The qualitative ball valve with better tightness.

For problem above, it is provided that following technical scheme: a kind of ball valve, including valve body, spheroid, valve seat and valve rod, described Being provided with medium channel in valve body, described medium channel is connected with pipeline, has been provided with fixing and seals between described valve body and pipeline The ferrule structure of effect, it is characterised in that: locking nut that described ferrule structure includes all being socketed on pipeline, Olivary head, lock Tight ring and sealing ring, the two ends of described Olivary head are inclined end face, and described retaining ring is between Olivary head and sealing ring, described Two axial ends of retaining ring lean with the inclined end face of Olivary head and the end face of sealing ring respectively, the one of described locking nut End is connected with valve body screw thread, the other end formed tight lock part, locking nut and valve body locking time, described tight lock part can to Olivary head, Retaining ring and sealing ring three produce the thrust to valve body direction, make Olivary head and pipeline clamping, make sealing ring and valve body and pipeline Seal and coordinate.

This utility model is further arranged to: two axial ends of described retaining ring are the inclined-plane tilted inside it.

This utility model is further arranged to: described sealing ring is that face contacts with valve body, and the face that sealing ring contacts with valve body For inclined-plane.

This utility model is further arranged to: described sealing ring is hard metal sealing ring.

This utility model is further arranged to: the end face that described tight lock part and Olivary head lean is the inclined-plane tilted inside it.

This utility model is further arranged to: one end of described valve body can connect termination termination, after preventing from cutting off medium pipeline Maloperation.

The beneficial effects of the utility model: this utility model is provided with Olivary head and sealing ring between valve body and pipeline, and two Arranging retaining ring between person, when making locking nut and valve body mutually lock, retaining ring applies active force to Olivary head and sealing ring, from And make the cutting ferrule between Olivary head and pipeline more tight, seal between sealing ring with valve body and pipeline and coordinate；This utility model is tied Structure is simple, and easy to operate, stationarity and sealing are greatly improved.

Accompanying drawing explanation

Fig. 1 is partial sectional view of the present utility model；

Fig. 2 is the enlarged drawing in Fig. 1 at A

Fig. 3 is that one end of valve body in this utility model connects partial sectional view when terminating termination.

Figure is illustrated: 1-valve body；2-spheroid；3-valve seat；4-valve rod；5-pipeline；6-ferrule structure；61-locking nut；611- Tight lock part；6111-tight lock part end face；62-Olivary head；63-retaining ring；631-axial end；64-sealing ring；7-medium leads to Road；8-terminates termination.

Detailed description of the invention

Below in conjunction with the accompanying drawings and embodiment, detailed description of the invention of the present utility model is described in further detail.Following example For this utility model is described, but it is not limited to scope of the present utility model.

As it is shown in figure 1, a kind of ball valve, including valve body 1, spheroid 2, valve seat 3 and valve rod 4, in described valve body 1, it is provided with medium Passage 7, described medium channel 7 is connected with pipeline 1, has been provided with fixing and sealing function between described valve body 1 and pipeline 5 Ferrule structure 6.

As in figure 2 it is shown, described ferrule structure 6 include all being socketed on pipeline 5 locking nut 61, Olivary head 62, retaining ring 63 and sealing ring 64, the two ends of described Olivary head 62 are inclined end face, and described retaining ring 63 is positioned at Olivary head 62 and sealing ring Between 64, and two axial ends 631 of retaining ring 63 respectively with inclined end face and the end face of sealing ring 64 of Olivary head 62 Leaning, threadeds with valve body 1 in one end of described locking nut 61, and the other end forms tight lock part 611, described tight lock part 611 One end be resisted against on the inclined end face of Olivary head 62, when locking nut 61 and valve body 1 are locked, described tight lock part 611 is to olive Olive 62, retaining ring 63 and sealing ring 64 three produce the thrust to valve body 1 direction, make two ends and the pipeline 5 of Olivary head 62 Clamping, sealing ring 64 seals with valve body 1 and pipeline 5 and coordinates.This utility model is provided with Olivary head 62 and sealing ring 64, and Retaining ring 63 is set between Olivary head 62 and sealing ring 64, when making that locking nut 61 is mutual with valve body 1 threadeds, lock Tight portion 611 produces thrust to valve body 1 direction, two axial ends 631 of retaining ring 63 beveled end to Olivary head 62 respectively The end face of face and sealing ring 64 applies active force, so that the cutting ferrule between Olivary head 62 and pipeline 7 is more tight, seals solid 64 coordinate tightr with valve body 1 and pipeline 5, it is ensured that the sealing between valve body 1 and pipeline 5.

Further, described sealing ring 64 contacts for face with valve body 1, and the face that sealing ring 64 contacts with valve body 1 is inclined-plane, Face contact makes the contact area between valve body 1 and sealing ring 64 increase, and improves sealing effectiveness between the two, and inclined-plane enhances two Sealing force between person.Described sealing ring 64 is hard metal sealing ring, so that sealing ring 64 has sealing intensity height, effect The advantage such as the best, reusable.

Further, two axial ends 631 of described retaining ring 63 are the inclined-plane tilted inside it, so that retaining ring 63 is more stable when Olivary head 62 and sealing ring 64 apply active force.Described tight lock part end face 6111 is to roll in it Oblique inclined-plane, the active force making tight lock part 611 apply Olivary head 62 is more stable and effective.

Additionally, as it is shown on figure 3, one end of described ball valve can also connect termination termination 8, after preventing from cutting off medium pipeline 5 Maloperation.

The above is only preferred implementation of the present utility model, it is noted that for those skilled in the art For, on the premise of without departing from this utility model know-why, it is also possible to make some improvement and modification, this of above-mentioned hypothesis A little improvement also should be regarded as protection domain of the present utility model with modification.

Claims

1. a ball valve, including valve body, spheroid, valve seat and valve rod, is provided with medium channel, described medium channel in described valve body It is connected with pipeline, between described valve body and pipeline, has been provided with the fixing and ferrule structure of sealing function, it is characterised in that: described Ferrule structure includes locking nut, Olivary head, retaining ring and the sealing ring being all socketed on pipeline, and the two ends of described Olivary head are Inclined end face, described retaining ring between Olivary head and sealing ring, two axial ends of described retaining ring respectively with Olivary head Inclined end face and the end face of sealing ring lean, one end of described locking nut is connected with valve body screw thread, and the other end forms locking Portion, when locking nut is locked with valve body, Olivary head, retaining ring and sealing ring three can be produced to valve body direction by described tight lock part Thrust, make Olivary head and pipeline clamping, make sealing ring coordinate with valve body and seal for pipe joints.

A kind of ball valve the most according to claim 1, it is characterised in that: two axial ends of described retaining ring are to it The inclined-plane that inner side tilts.

A kind of ball valve the most according to claim 1 and 2, it is characterised in that: described sealing ring is that face contacts with valve body, and The face that sealing ring contacts with valve body is inclined-plane.

A kind of ball valve the most according to claim 1, it is characterised in that: described sealing ring is hard metal sealing ring.

A kind of ball valve the most according to claim 1, it is characterised in that: the end face that described tight lock part and Olivary head lean is The inclined-plane tilted inside it.

A kind of ball valve the most according to claim 1, it is characterised in that: one end of described valve body can connect termination termination, with Prevent the maloperation after cutting off medium pipeline.