CN219623283U - Eccentric hemisphere valve - Google Patents

Abstract

The utility model relates to the field of valve products, in particular to an eccentric half ball valve which comprises a valve body, a ball body rotatably arranged in the valve body and an opening and closing piece for controlling the ball body to rotate in the valve body, wherein an opening inner wall at one side of the valve body is provided with an outwards protruding check ring, one side of the check ring, which is close to the interior of the valve body, is provided with a valve seat through a plurality of connecting bolts, the check ring is provided with a plurality of fastening bolts in a threaded manner, the end part of each fastening bolt is abutted against the valve seat to adjust a gap between the valve seat and the check ring, the surface of the ball body is provided with a spherical crown, and the valve seat is embedded with a sealing piece matched with the spherical crown to realize sealing. The utility model solves the problem of high requirements on the installation and production precision of the spherical crown and the valve seat.

Description

Eccentric hemisphere valve

Technical Field

The utility model relates to the field of valve products, in particular to an eccentric half ball valve.

Background

The eccentric half ball valve rotates through a ball body arranged in the valve body, is matched with a valve seat arranged on the valve body to open and close the valve, is mainly used for cutting off or connecting a pipeline, can also be used for adjusting and controlling fluid, and has the advantages of simple structure, small volume and light weight.

Among the prior art, as shown in application number CN 110388480A, have provided an eccentric half ball valve, including valve body, valve gap, valve rod, disk seat, spheroid and hand wheel, the spheroid rotates and locates in the valve body, the valve rod wears to locate on the valve gap, and valve rod upper end and hand wheel linkage, lower extreme and valve rod linkage, the disk seat passes through the bolt and can dismantle and locate valve body one side, be equipped with the spherical crown that can support on the disk seat on the spheroid, characterized by: the valve gap is located the valve body upper end, and the valve gap outer edge can dismantle with the valve body through a plurality of stud and nut and be connected, the spherical crown can dismantle through the screw and locate on the spheroid, leaves the clearance between spherical crown and the spheroid, and is equipped with first wave form recess on the spherical crown, be equipped with the second wave form recess of aiming at first wave form recess on the spheroid, be equipped with wave form sealing gasket between first wave form recess and the second wave form recess.

The main technical points are that the structure of the first wave-shaped groove, the second wave-shaped groove and the wave-shaped sealing gasket is related, and the sphere is a step surface or a wave-shaped surface when being matched with the valve seat so as to ensure the tightness. However, the matching structure has higher requirements on matching precision, and is unfavorable for production and installation.

Disclosure of Invention

Therefore, the utility model provides the eccentric half ball valve, which solves the problem that the requirements on the installation and production precision of the spherical crown and the valve seat are high.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides an eccentric half ball valve, includes the valve body, rotatable install the inside spheroid of valve body and control the spheroid is in the headstock gear of valve body internal rotation, one side opening inner wall of valve body is equipped with the retaining ring that outwards protrudes, the valve seat is installed through a plurality of connecting bolts to one side that the retaining ring is close to the valve body inside, the spiro union is installed a plurality of holding bolts on the retaining ring, each holding bolt's tip supports and is in on the valve seat in order to adjust clearance between valve seat and the retaining ring, spheroidal surface mounting has the spherical crown, the embedding has on the valve seat with the spherical crown cooperation realizes sealed sealing member.

Preferably, each fastening bolt and each connecting bolt are annularly distributed along the check ring and are distributed in a staggered manner.

Preferably, the sealing member is made of rubber.

Preferably, the sealing member is made of tetrafluoro rubber.

Preferably, the opening and closing member comprises a valve rod and a hand wheel.

Preferably, a rotating rod for installing the ball is arranged at the bottom of the valve body, and the rotating rod and the valve rod are coaxially arranged.

Preferably, the retainer ring and the valve body are integrally formed.

By adopting the technical scheme, the utility model has the beneficial effects that:

according to the technical scheme, an adjustable valve seat structure is structurally designed, the valve seat is fixed through the connecting bolt during installation, and the fastening bolt is correspondingly designed to be matched with the connecting bolt so as to adjust the position relation between the valve seat and the check ring, so that the function of adjusting the sealing specific pressure of the sealing element is realized; the plurality of connecting bolts and the plurality of fastening bolts are annularly distributed, so that the valve seat mounting structure is ensured to be stable, the adjusting process is simple, the valve seat and the check ring are also ensured to be difficult to generate position change in use due to the structure of threaded connection, and the stability in use is ensured; the spherical crown and the sphere are also of split design, and are adjustable when the spherical crown is matched with the valve seat, so that the requirements on production and installation precision are reduced, and the spherical crown and the sphere have stronger applicability.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1;

FIG. 3 is a schematic view of a partial enlarged structure at B in FIG. 1;

FIG. 4 is a schematic view of a partial enlarged structure at C in FIG. 1;

fig. 5 is a schematic view of the front structure of the retainer ring.

Reference numerals: 1. a valve body; 11. a valve cover; 12. a retainer ring; 13. a valve seat; 131. a connecting bolt; 132. a fastening bolt; 133. a seal; 2. a sphere; 21. a spherical cap; 3. a valve stem; 31. a hand wheel; 32. and rotating the rod.

Detailed Description

The following describes embodiments of the present utility model in detail with reference to specific examples, so as to solve the technical problem by applying the technical means to the present utility model, and the implementation process for achieving the technical effect can be fully understood and implemented accordingly.

Referring to fig. 1 to 4, an eccentric half ball valve comprises a valve body 1, a ball body 2 rotatably installed in the valve body 1, and an opening and closing member for controlling the ball body 2 to rotate in the valve body 1, wherein the opening and closing member comprises a valve rod 3 and a hand wheel 31, the bottom of the valve rod 3 is linked with the ball body 2, and the hand wheel 31 controls the valve rod 3 to rotate; the technical scheme is that the valve cover 11 fixedly connected with the valve body 1 is arranged at the integral installation position of the opening and closing part, so that the ball body 2 is conveniently installed; structurally, a rotating rod 32 for installing the ball body 2 is arranged at the bottom of the valve body 1, and the rotating rod 32 and the valve rod 3 are coaxially arranged; in use, the valve rod 3 is driven to rotate by rotating the hand wheel 31, the corresponding control sphere 2 of the valve rod 3 rotates in the valve body 1, and the rotating rod 32 serves as the rotation center of the sphere 2 to support the sphere 2.

The inner wall of the opening at one side of the valve body 1 is provided with a check ring 12 protruding outwards, the check ring 12 and the valve body 1 are integrally formed, and the check ring 12 and the valve body 1 are synchronously formed during casting, so that the installation structure is simplified; the utility model discloses a sealing structure for a valve, including valve body 1, retaining ring 12, sealing structure and the like, the valve seat 13 is installed through a plurality of connecting bolts 131 to one side that retaining ring 12 is close to inside of valve body 1, a plurality of holding bolts 132 are installed to the spiro union on the retaining ring 12, each holding bolt 132's tip is supported and is leaned on valve seat 13 in order to adjust clearance between valve seat 13 and the retaining ring 12, the surface mounting of spheroid 2 has spherical cap 21, the embedding on valve seat 13 with spherical cap 21 cooperation realizes sealed sealing member 133, sealing member 133 is the rubber material, here sealing member 133 selects the tetrafluoro rubber material to make seal structure have acid and alkali resistance and various organic solvent's characteristics, also have advantages such as high temperature resistant, ageing resistance.

The technical scheme structurally designs an adjustable valve seat 13 structure, the valve seat 13 is fixed through a connecting bolt 131 during installation, and a fastening bolt 132 is correspondingly designed to be matched with the connecting bolt 131 so as to adjust the position relation between the valve seat 13 and a retainer ring 12, thereby realizing the function of adjusting the sealing specific pressure of a sealing element 133; the spherical crown 21 and the sphere 2 are also of a split design, and are adjustable when the spherical crown 21 is matched with the valve seat 13, so that the requirements on production and installation precision are reduced, and the applicability is high.

As further shown in fig. 5, the fastening bolts 132 and the connecting bolts 131 are annularly distributed along the retainer ring 12 and are staggered. The connecting bolts 131 and the fastening bolts 132 are distributed annularly, so that the valve seat 13 is ensured to be firm in installation structure, the adjusting process is simple, the valve seat 13 and the retainer ring 12 are also ensured to be difficult to generate position change in use due to the structure of threaded connection, and the stability in use is ensured.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (7)

1. The utility model provides an eccentric half ball valve, includes valve body (1), rotatable install spheroid (2) and the control of valve body (1) inside spheroid (2) pivoted headstock gear, its characterized in that in valve body (1): the valve is characterized in that a check ring (12) protruding outwards is arranged on the inner wall of an opening on one side of the valve body (1), a valve seat (13) is arranged on one side, close to the inside of the valve body (1), of the check ring (12) through a plurality of connecting bolts (131), a plurality of fastening bolts (132) are arranged on the check ring (12) in a screwed connection mode, the end portions of the fastening bolts (132) are abutted to the valve seat (13), a spherical crown (21) is arranged on the surface of the spherical body (2), and a sealing piece (133) matched with the spherical crown (21) to achieve sealing is embedded on the valve seat (13).

2. An eccentric hemi-ball valve as in claim 1 wherein: each fastening bolt (132) and each connecting bolt (131) are annularly distributed along the retainer ring (12) and are distributed in a staggered manner.

3. An eccentric hemi-ball valve as in claim 1 wherein: the sealing element (133) is made of rubber.

4. An eccentric hemi-ball valve as in claim 3 wherein: the sealing member (133) is made of tetrafluoro rubber.

5. An eccentric hemi-ball valve as in claim 1 wherein: the opening and closing piece comprises a valve rod (3) and a hand wheel (31).

6. An eccentric hemi-ball valve as in claim 5 wherein: the bottom of the valve body (1) is provided with a rotating rod (32) for installing the ball body (2), and the rotating rod (32) and the valve rod (3) are coaxially arranged.

7. An eccentric hemi-ball valve as in claim 1 wherein: the retainer ring (12) and the valve body (1) are integrally formed.