CN219655314U

CN219655314U - Hydrophobic ball valve

Info

Publication number: CN219655314U
Application number: CN202320696286.6U
Authority: CN
Inventors: 黄子龙; 刘志刚; 陈开�; 李博; 林胜峰
Original assignee: JIANGNAN VALVE CO Ltd
Current assignee: JIANGNAN VALVE CO Ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-09-08
Anticipated expiration: 2033-03-27

Abstract

The utility model provides a hydrophobic ball valve, includes valve body, valve rod and valve ball, form the valve pocket in the valve body, the valve ball sets up in the valve pocket, the one end of valve rod stretches into the valve pocket and is connected with the valve ball, set up disk seat sealing unit in the valve pocket, disk seat sealing unit includes first disk seat subassembly and second disk seat, through setting up first disk seat subassembly, realize high-efficient sealing to the water inlet of valve pocket, the both sides of first disk seat subassembly can be inseparable with valve ball and location seal seat laminating seal, prevent that the sealing effect of the water inlet that the too big causes of external medium impact force is not tight, and in this design, welded fastening between location seal seat and the valve body, thereby can further compress tightly the first disk seat subassembly in the water inlet, make first disk seat subassembly spacing between valve ball and location seal seat, prevent that the removal of great range from appearing and the sealing effect that leads to is not good.

Description

Hydrophobic ball valve

Technical Field

The utility model relates to the technical field of ball valves, in particular to a hydrophobic ball valve.

Background

The hydrophobic ball valve is a valve which is driven by a valve rod and rotates around the axis of the valve ball, and can be used for adjusting and controlling fluid or gas. The valve ball in the valve body moves under the drive of the valve rod, so that the valve ball and the valve seat are in sealing fit and separation to finish the work, and therefore, the sealing stability between the valve seat and the valve ball is important, and the service life of the valve ball is directly influenced. The existing hydrophobic ball valve seat is in direct contact with the valve ball for sealing, and the valve seat can move in the valve cavity in a trace amount through a spring, so that the phenomenon of loose sealing in the moving process is unavoidable, and therefore, a high-sealing hydrophobic ball valve is needed.

Disclosure of Invention

In view of this, the present utility model provides a hydrophobic ball valve.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a hydrophobic ball valve, includes valve body, valve rod and valve ball, form the valve pocket in the valve body, the valve ball sets up in the valve pocket, the one end of valve rod stretches into the valve pocket and is connected with the valve ball, set up disk seat sealing unit in the valve pocket, disk seat sealing unit includes first disk seat subassembly and second disk seat, the valve pocket has water inlet and water outlet, first disk seat subassembly sets up at water inlet, water inlet keeps away from one side of valve ball and sets up the location seal seat, the second disk seat sets up at water outlet, the both sides of first disk seat subassembly are sealed with valve ball and location seal seat respectively and are met, the both sides of second disk seat are sealed with the inner wall of valve ball and water outlet respectively and meet.

Preferably, the first valve seat assembly comprises a first valve seat and an adjusting seat, the adjusting seat is arranged on one side, far away from the valve ball, of the first valve seat, one end of the positioning sealing seat extends into the water inlet part to be connected with the adjusting seat in a sealing mode, an elastic adjusting piece is arranged between the first valve seat and the adjusting seat, the first valve seat is provided with a valve ball sealing surface and an adjusting piece mounting surface, the valve ball sealing surface is a cambered surface structure on one side, close to the valve ball, of the first valve seat, the adjusting piece mounting surface is arranged on one side, close to the adjusting seat, of the first valve seat, a limiting end is formed on the adjusting piece mounting surface in a protruding mode, an adjusting ring groove is formed between the adjusting piece mounting surface, the limiting end and one side end face, close to the first valve seat, of the elastic adjusting piece is arranged in the adjusting ring groove.

Preferably, an outer sealing ring is arranged between the adjusting seat and the positioning sealing seat, the adjusting seat is provided with an outer sealing part and an inner sealing part, a limiting compression end is formed on the outer sealing part in a protruding mode, one end of the positioning sealing seat extending into the water inlet part is compressed to be a limiting compression end, an outer sealing ring groove is arranged between the limiting compression end and the positioning sealing seat as well as between the limiting compression end and the adjusting seat, an outer sealing ring is arranged in the outer sealing ring groove, and two sides of the outer sealing ring are respectively connected with the positioning sealing seat and the adjusting seat in a sealing mode.

Preferably, an inner sealing ring is arranged on the inner sealing part of the adjusting seat, an inner sealing ring positioning end is formed by protruding the inner sealing part, and the inner sealing ring is sleeved on the inner sealing ring positioning end.

Preferably, a packing groove is formed between the valve rod and the valve body, sealing packing is arranged in the packing groove, an adjustable packing gland assembly is arranged on the valve rod, and one end of the adjustable packing gland assembly extends into the packing groove to compress the sealing packing.

Preferably, the adjustable packing gland assembly comprises a compression block, a gland spring and a packing gland, wherein the compression block, the gland spring and the packing gland are sequentially arranged from top to bottom, the compression block and the packing gland are sleeved on a valve rod in an annular structure, two ends of the gland spring are respectively in contact with the compression block and the packing gland, the bottom end of the packing gland stretches into a packing groove to compress sealing packing, an inner ring side of the compression block is provided with an inner thread, the valve rod is provided with an outer thread corresponding to the inner thread of the inner ring side of the compression block, and the compression block is in threaded connection with the valve rod.

The utility model has the beneficial effects that: according to the utility model, the first valve seat assembly is arranged to realize high-efficiency sealing on the water inlet part of the valve cavity, two sides of the first valve seat assembly can be tightly attached and sealed with the valve ball and the positioning sealing seat, so that the poor sealing effect of the water inlet part caused by overlarge impact force of external media is prevented.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is an enlarged view at a in fig. 1.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model will be further described with reference to the drawings.

The utility model provides the following technical scheme:

as shown in fig. 1-2, the utility model discloses a hydrophobic ball valve, which comprises a valve body 1, a valve rod 2 and a valve ball 3, wherein a valve cavity 4 is formed in the valve body 1, the valve ball 3 is arranged in the valve cavity 4, one end of the valve rod 2 stretches into the valve cavity 4 to be connected with the valve ball 3, a valve seat sealing unit 5 is arranged in the valve cavity 4, the valve seat sealing unit 5 comprises a first valve seat assembly 6 and a second valve seat 7, the valve cavity 4 is provided with a water inlet part 8 and a water outlet part 9, the first valve seat assembly 6 is arranged at the water inlet part 8, a positioning sealing seat 10 is arranged at one side of the water inlet part 8 far away from the valve ball 3, the second valve seat 7 is arranged at the water outlet part 9, two sides of the first valve seat assembly 6 are respectively connected with the valve ball 3 and the positioning sealing seat 10 in a sealing way, and two sides of the second valve seat 7 are respectively connected with the inner walls of the valve ball 3 and the water outlet part 9 in a sealing way. Specifically, in this design, through setting up first disk seat subassembly 6, realize high-efficient sealing to the portion 8 of intaking of valve pocket 4, the both sides of first disk seat subassembly 6 can be inseparable with valve ball 3 and location seal seat 10 laminating seal, prevent that the too big sealed effect of portion 8 of intaking that causes of external medium impact force from being not tight, and in this design, welded fastening between location seal seat 10 and valve body 1, thereby can further compress tightly the first disk seat subassembly 6 in the portion 8 of intaking, make first disk seat subassembly 6 by spacing between valve ball 3 and location seal seat 10, prevent that the sealed effect that the removal of great amplitude leads to from appearing in first disk seat subassembly 6 is not good.

Further, the first valve seat assembly 6 includes a first valve seat 11 and an adjusting seat 12, the adjusting seat 12 is disposed on one side of the first valve seat 11 far away from the valve ball 3, one end of the positioning sealing seat 10 extends into the water inlet 8 to be in sealing connection with the adjusting seat 12, an elastic adjusting member 13 is disposed between the first valve seat 11 and the adjusting seat 12, the first valve seat 11 is provided with a valve ball sealing surface 14 and an adjusting member mounting surface 15, the valve ball sealing surface 14 is a cambered surface structure on one side of the first valve seat 11 near the valve ball 3, the adjusting member mounting surface 15 is disposed on one side of the first valve seat 11 near the adjusting seat 12, a limiting end 16 is formed on the adjusting member mounting surface 15 in a protruding manner, an adjusting ring groove is formed between one side end surfaces of the adjusting member mounting surface 15, the limiting end 16 and the adjusting seat 12 near the first valve seat 11, and the elastic adjusting member 13 is disposed in the adjusting ring groove. Specifically, in this embodiment, through setting up elasticity adjusting part 13 between first disk seat 11 and adjustment seat 12, elasticity adjusting part 13 in this embodiment is the spring, and elasticity adjusting part 13's setting can make first disk seat 11 can receive elasticity of elasticity adjusting part 13 to sticis on valve ball 3 all the time, when valve ball 3 receives the drive rotation of valve rod 2, can remain the leakproofness all the time, can further prevent liquid or gas leakage, has strengthened hydrophobic ball valve's leakproofness.

Further, an outer sealing ring 17 is arranged between the adjusting seat 12 and the positioning sealing seat 10, the adjusting seat 12 is provided with an outer sealing portion 18 and an inner sealing portion 19, a limiting compression end 20 is formed by protruding on the outer sealing portion 18, one end of the positioning sealing seat extending into the water inlet portion 8 compresses the limiting compression end 20, an outer sealing ring groove 21 is arranged between the limiting compression end 20 and the positioning sealing seat and the adjusting seat 12, an outer sealing ring 17 is arranged in the outer sealing ring groove 21, and two sides of the outer sealing ring 17 are respectively connected with the positioning sealing seat 10 and the adjusting seat 12 in a sealing mode.

Further, an inner sealing ring 22 is disposed on the inner sealing portion 19 of the adjusting seat 12, an inner sealing ring positioning end 23 is formed by protruding on the inner sealing portion 19, and the inner sealing ring 22 is sleeved on the inner sealing ring positioning end 23.

Further, a packing groove 24 is formed between the valve rod 2 and the valve body 1, a sealing packing 25 is arranged in the packing groove 24, an adjustable packing gland assembly 26 is arranged on the valve rod 2, and one end of the adjustable packing gland assembly 26 extends into the packing groove 24 to press the sealing packing 25.

Further, the adjustable packing gland assembly 26 comprises a packing block 27, a gland spring 28 and a packing gland 29, the packing block 27, the gland spring 28 and the packing gland 29 are sequentially arranged from top to bottom, the packing block 27 and the packing gland 29 are respectively sleeved on the valve rod 2 in an annular structure, two ends of the gland spring 28 are respectively contacted with the packing block 27 and the packing gland 29, the bottom end of the packing gland stretches into the packing groove 24 to press the sealing packing 25, an internal thread is arranged on the inner ring side of the packing block 27, an external thread is arranged on the valve rod 2 corresponding to the internal thread on the inner ring side of the packing block 27, and the packing block 27 is in threaded connection with the valve rod 2.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a hydrophobic ball valve, includes valve body, valve rod and valve ball, form the valve pocket in the valve body, the valve ball sets up in the valve pocket, the one end of valve rod stretches into the valve pocket and is connected with the valve ball, its characterized in that: the valve is characterized in that a valve seat sealing unit is arranged in the valve cavity and comprises a first valve seat component and a second valve seat, the valve cavity is provided with a water inlet part and a water outlet part, the first valve seat component is arranged on the water inlet part, one side, far away from the valve ball, of the water inlet part is provided with a positioning sealing seat, the second valve seat is arranged on the water outlet part, two sides of the first valve seat component are respectively in sealing connection with the valve ball and the positioning sealing seat, and two sides of the second valve seat are respectively in sealing connection with the inner walls of the valve ball and the water outlet part.

2. The hydrophobic ball valve of claim 1, wherein: the first valve seat assembly comprises a first valve seat and an adjusting seat, the adjusting seat is arranged on one side, far away from the valve ball, of the first valve seat, one end of the positioning sealing seat extends into the water inlet part to be connected with the adjusting seat in a sealing mode, an elastic adjusting piece is arranged between the first valve seat and the adjusting seat, the first valve seat is provided with a valve ball sealing surface and an adjusting piece mounting surface, the valve ball sealing surface is a cambered surface structure on one side, close to the valve ball, of the first valve seat, the adjusting piece mounting surface is arranged on one side, close to the adjusting seat, of the first valve seat, a limiting end is formed on the adjusting piece mounting surface in a protruding mode, an adjusting ring groove is formed among the adjusting piece mounting surface, the limiting end and one side end face, close to the first valve seat, of the adjusting piece, and the elastic adjusting piece is arranged in the adjusting ring groove.

3. The hydrophobic ball valve of claim 2, wherein: the adjusting seat is provided with an outer sealing ring and an inner sealing part, the outer sealing part is protruded to form a limiting compression end, one end of the positioning sealing seat extending into the water inlet part is compressed to the limiting compression end, an outer sealing ring groove is arranged between the limiting compression end and the positioning sealing seat as well as between the limiting compression end and the adjusting seat, the outer sealing ring is arranged in the outer sealing ring groove, and two sides of the outer sealing ring are respectively connected with the positioning sealing seat and the adjusting seat in a sealing way.

4. A hydrophobic ball valve as claimed in claim 3 wherein: an inner sealing ring is arranged on the inner sealing part of the adjusting seat, an inner sealing ring positioning end is formed by protruding the inner sealing part, and the inner sealing ring is sleeved on the inner sealing ring positioning end.

5. The hydrophobic ball valve of claim 1, wherein: a packing groove is formed between the valve rod and the valve body, sealing packing is arranged in the packing groove, an adjustable packing gland assembly is arranged on the valve rod, and one end of the adjustable packing gland assembly stretches into the packing groove to compress the sealing packing.

6. The hydrophobic ball valve of claim 5, wherein: the adjustable packing gland assembly comprises a compression block, a gland spring and a packing gland, wherein the compression block, the gland spring and the packing gland are sequentially arranged from top to bottom, the compression block and the packing gland are sleeved on a valve rod in an annular structure, two ends of the gland spring are respectively in contact with the compression block and the packing gland, the bottom end of the packing gland stretches into a packing groove to compress sealing packing, an inner ring side of the compression block is provided with an inner thread, the valve rod is provided with an outer thread corresponding to the inner thread of the inner ring side of the compression block, and the compression block is in threaded connection with the valve rod.