CN212028605U

CN212028605U - Deformed spherical eccentric elastic wire sealing valve

Info

Publication number: CN212028605U
Application number: CN201922462348.3U
Authority: CN
Inventors: 谢文学
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-11-27
Anticipated expiration: 2029-12-27

Abstract

The utility model relates to a spherical surface eccentric elastic line sealing valve warp. The valve comprises a valve body, valve rod and opening and closing piece, opening and closing piece one side is equipped with annular step, install the sealing ring on the annular step, the sealing ring passes through the clamping ring to be fixed on opening and closing piece, the inner wall of valve body is equipped with annular boss, the disk seat includes the annular slab, the inner ring of annular slab is equipped with the axial turn-ups, the axial turn-ups is structure as an organic whole with the annular slab, the axial turn-ups deviates from annular boss, the axial turn-ups is the closed angle with the outside of the junction of annular slab, the external diameter of sealing ring is equipped with sealed face, the closed angle forms the line with sealed face and seals vice, the annular slab outside is equipped with the apical ring, the internal diameter of apical ring is. The utility model discloses simple structure has solved sealed face each point pressurized inhomogeneity problem, and the sealed face of sealing ring and the closed angle of disk seat form the line sealed vice, can scrape the medium crystallization on the sealed face when the valve is closed, improves the sealed effect of valve.

Description

Deformed spherical eccentric elastic wire sealing valve

Technical Field

The utility model relates to a valve especially relates to a warp eccentric elastic wire sealing valve of sphere.

Background

The ball valve and the butterfly valve are two kinds of valves which are most widely applied and used in the prior valves, are simple and easy to operate, and play a role in stopping and cutting off pipeline media. Ball valve, the open-close piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. The ball valve is divided into: pneumatic ball valves, electric ball valves, manual ball valves. The butterfly valve is also called flap valve, is a simple regulating valve, mainly composed of valve body, valve rod, butterfly plate and sealing ring. The valve body is cylindrical, the axial length is short, and a butterfly plate is arranged in the valve body. The existing butterfly plate or ball valve has the disadvantages of serious abrasion, large bearing pressure, poor sealing performance, large opening and closing moment and short service life; the friction force of the existing valve is large when the valve is opened and closed, when the valve is closed, the opening and closing piece compresses the valve seat, and medium crystallization and formation exist between the valve seat and the opening and closing piece to influence the sealing effect.

SUMMERY OF THE UTILITY MODEL

To the above defect, the utility model aims to provide a simple structure reduces and opens and close moment, can strike off sealed face crystallization, and sealing performance is good, long service life's a deformation spherical surface eccentric elastic line sealing valve.

Therefore, the utility model adopts the technical proposal that:

the valve comprises a valve body, a valve rod and an opening and closing part, wherein the opening and closing part is positioned in the valve body, the valve rod is connected with the opening and closing part, one side of the opening and closing part is provided with an annular step, a sealing ring is arranged on the annular step, the sealing ring is fixed on the opening and closing part through a pressing ring, and a valve seat is arranged in the valve body. The inner end surface of the top ring is an inclined surface inclined towards the center, the inclined surface is provided with a rubber strip positioned at the upper end of the clamping table, a hanging ring arranged in the valve body is arranged on the outer side of the top ring, bolts penetrating through the hanging ring are arranged on the periphery of the outer end face of the hanging ring, the front ends of the bolts are abutted against the outer end face of the top ring, the sealing surface is a curved surface, the radial section of the sealing surface is a perfect circle section, an inclined line formed by the circle center of the perfect circle section forms an included angle a with the central line of the valve runner, the plane formed by the inclined line and the central line of the valve runner is vertical to the axial lead of the valve rod, the axial lead of the valve rod and the central line of the valve runner are eccentrically arranged, the circle center of one radial section far away from the valve rod in all the radial sections of the sealing surface is also on the central line of the valve runner, when the oblique line is coincident with the central line of the valve flow passage, the sealing surface is a spherical surface, the sealing ring is a part of a sphere, and the sphere center of the sphere is on the central line of the valve flow passage.

As a further improvement of the technical scheme, the opening and closing piece is a butterfly plate.

As a further improvement of the above technical solution, the opening and closing member is a ball.

The utility model has the advantages that:

the utility model has simple structure, by adopting the structure of the utility model, the problem of non-uniformity of each point of the sealing surface under pressure is solved, the problem of deformation and leakage caused by non-uniform stress of the sealing surface at high temperature and low temperature is realized, the opening and closing torque can be reduced, the sealing performance is good, and the service life of the valve is prolonged; the sealing surface of the sealing ring and the sharp corner of the valve seat form a linear sealing pair, and medium crystals and knots on the sealing surface of the sealing ring can be scraped off when the valve is closed, so that the sealing effect of the valve is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of a in fig. 1.

In the figure, 1 is a valve body, 2 is a valve rod, 3 is an opening and closing piece, 4 is a sealing ring, 5 is a pressing ring, 6 is a valve seat, 7 is an annular boss, 8 is an annular plate, 9 is an axial flanging, 10 is a sharp corner, 11 is a top ring, 12 is a clamping table, 13 is an adhesive tape, 14 is a hanging ring, 15 is a bolt, 16 is an oblique line, 17 is a valve flow passage central line, 18 is a valve rod axial line, and 19 is a sphere center.

Detailed Description

A deformed spherical eccentric elastic line sealing valve comprises a valve body 1, a valve rod 2 and an opening and closing part 3, wherein the opening and closing part 3 is positioned in the valve body 1, the valve rod 2 is connected with the opening and closing part 3, one side of the opening and closing part 3 is provided with an annular step, a sealing ring 4 is installed on the annular step, the sealing ring 4 is fixed on the opening and closing part 3 through a pressing ring 5, a valve seat 6 is arranged in the valve body 1, an annular boss 7 is arranged on the inner wall of the valve body 1, the valve seat 6 is clamped outside the annular boss 7, the valve seat 6 comprises an annular plate 8, an axial flanging 9 is arranged on the inner ring of the annular plate 8, the axial flanging 9 and the annular plate 8 are of an integral structure, the axial flanging 9 deviates from the annular boss 7, the outer side of the joint of the axial flanging 9 and the annular plate 8 is a sharp corner 10, the outer diameter of the sealing ring 4 is provided, the outer side of the annular plate 8 is provided with a top ring 11, the inner diameter of the top ring 11 is provided with a clamping table 12, the free end of the axial flanging 9 is matched with the clamping table 12, the inner end surface of the top ring 11 is an inclined surface inclined towards the center, the inclined surface is provided with a rubber strip 13 positioned at the upper end of the clamping table 12, the outer side of the top ring 11 is provided with a lifting ring 14 arranged in the valve body 1, the periphery of the outer end surface of the lifting ring 14 is provided with a bolt 15 penetrating through the lifting ring 14, the front end of the bolt 15 is abutted against the outer end surface of the top ring 11, the sealing surface is a curved surface, the radial section of the sealing surface is a perfect circular section, an inclined line 16 formed by the circle center of the perfect circular section forms an included angle a with a valve runner center line 17, a plane formed by the inclined line 16 and the valve runner center line 17 is vertical to a valve rod axial line 18, the valve rod axial line 18 and, when the sloping line 16 coincides with the valve flow centre line 17, the sealing surface is spherical, the sealing ring 4 is part of a sphere, and the centre 19 of the sphere is on the valve flow centre line 17.

As a further improvement of the above technical solution, the opening and closing member 3 is a butterfly plate.

As a further improvement of the above technical solution, the opening and closing member 3 is a sphere.

By adopting the structure of the utility model, the problem of uneven pressure of each point of the sealing surface is solved, the problem of deformation and leakage caused by uneven stress of the sealing surface at high temperature and low temperature is realized, the opening and closing torque can be reduced, the sealing performance is good, and the service life of the valve is prolonged; the sealing surface of the sealing ring and the sharp corner of the valve seat form a linear sealing pair, and medium crystals and knots on the sealing surface of the sealing ring can be scraped off when the valve is closed, so that the sealing effect of the valve is improved.

It is to be emphasized that: the above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A deformed spherical eccentric elastic wire sealing valve comprises a valve body, a valve rod and an opening and closing part, wherein the opening and closing part is positioned in the valve body, the valve rod is connected with the opening and closing part, one side of the opening and closing part is provided with an annular step, a sealing ring is arranged on the annular step and is fixed on the opening and closing part through a pressing ring, a valve seat is arranged in the valve body, the deformed spherical eccentric elastic wire sealing valve is characterized in that an annular boss is arranged on the inner wall of the valve body, the valve seat is clamped outside the annular boss and comprises an annular plate, an axial flanging is arranged on the inner ring of the annular plate and is integrated with the annular plate, the axial flanging deviates from the annular boss, the outer side of the joint of the axial flanging and the annular plate is a sharp corner, the outer diameter of the sealing ring is provided with a sealing surface, the sharp corner forms a linear sealing pair with the sealing surface, the outer side, the free end of the axial flanging is matched with the clamping table, the inner end face of the top ring is an inclined face inclined towards the center, the inclined face is provided with a rubber strip positioned at the upper end of the clamping table, the outer side of the top ring is provided with a hanging ring arranged in the valve body, the periphery of the outer end face of the hanging ring is provided with a bolt penetrating through the hanging ring, the front end of the bolt is abutted against the outer end face of the top ring, the sealing face is a curved face, the radial section of the sealing face is a perfect circle section, an inclined line formed by the circle center of the perfect circle section forms an included angle a with the central line of the valve runner, the plane formed by the inclined line and the central line of the valve runner is vertical to the axial line of the valve rod, the axial line of the valve rod is eccentrically arranged with the central line of the valve runner, the circle center of one radial section far away from, the sphere center of the sphere is on the center line of the valve flow passage.

2. The distorted spherical eccentric elastic wire sealing valve according to claim 1, wherein the opening and closing member is a butterfly plate.

3. The deformed spherical eccentric elastic wire seal valve according to claim 1, wherein the opening and closing member is a sphere.