CN205350422U - High pressure ball valve - Google Patents
High pressure ball valve Download PDFInfo
- Publication number
- CN205350422U CN205350422U CN201620018449.5U CN201620018449U CN205350422U CN 205350422 U CN205350422 U CN 205350422U CN 201620018449 U CN201620018449 U CN 201620018449U CN 205350422 U CN205350422 U CN 205350422U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- valve body
- ring
- valve rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Sliding Valves (AREA)
Abstract
The utility model discloses a high pressure ball valve, including valve body, valve gap, case and valve rod, the valve gap through a bolt assembly and valve body fastening connection, the junction of valve body and valve gap be equipped with metallic sealing ring, metallic sealing ring's the outside be in the middle of the biconial structure of protruding both ends slope, the valve gap in the inner that the medium portals be equipped with with case one side spherical surface contact's disk seat, disk seat and valve gap structure as an organic whole, medium suction hole the inner and the case of valve body between install the support ring, the opposite side spherical surface contact of one end and case of support ring, the other end and the valve body of support ring between be equipped with the dish spring, the contact surface of contact surface, valve gap and case of surface, support ring and case of case on be equipped with tungsten carbide carbide coating respectively. The utility model relates to a high pressure ball valve, rational in infrastructure, valve high pressure resistant, stand wear and tear and sealing performance improve greatly, have prolonged the life of valve simultaneously.
Description
[technical field]
This utility model relates to the technical field of valve, particularly to a kind of high-pressure ball valve.
[background technology]
Ball valve is a kind of common valve, and ball valve is mainly used to make the flow direction cutting off, distribute and changing medium in pipeline, and it has only to the operation with 90-degree rotation and only small rotating torque just can be closed tight.Ball valve optimum switchs, stop valve uses, being mainly characterized by compact conformation own, sealing the features such as reliable, simple in construction of ball valve, is widely used in every profession and trade.
But, owing to the spool of high-pressure ball valve is subject to high pressure effect, spool is when opening and closing, frictional force between spool face and valve seat is bigger, after long-time use, it is easy to cause contact surface abrasion to reduce sealing effectiveness, substantially reduce service life and the serviceability of high-pressure ball valve.In order to improve ball valve serviceability in high pressure operating mode and sealing effectiveness, extend the service life of ball valve, it is necessary to propose a kind of high-pressure ball valve.
[utility model content]
The purpose of this utility model is in that to overcome above-mentioned the deficiencies in the prior art, it is provided that a kind of high-pressure ball valve, and it aims to solve the problem that in prior art, ball valve core easily weares and teares, and after long-time use, sealing property declines, and sealing effectiveness is poor, the technical problem that service life is short.
For achieving the above object, the utility model proposes a kind of high-pressure ball valve, including valve body, valve gap, spool and valve rod, described valve gap is fastenedly connected by the first bolt assembly and valve body, medium inlet hole it is provided with in described valve body, described valve gap is provided with the medium coaxial with medium inlet hole and portals, it is provided with spool in described valve body, a through hole running through spool is offered in described spool, described spool is offered a draw-in groove, described valve body offers valve rod hole, it is provided with valve rod in described valve rod hole, the end of described valve rod is provided with and the boss of card slot fit, the junction of described valve body and valve gap is provided with metallic packing ring, the outside of described metallic packing ring is the biconial structure that intermediate projections two ends tilt, described valve gap is provided with and the valve seat of spool side sphere-contact in the inner that medium portals, described valve seat and valve gap are structure as a whole, between medium inlet hole the inner and the spool of described valve body, a pushing out ring is installed, one end of a described pushing out ring and the opposite side sphere-contact of spool, it is provided with disc spring between the other end and the valve body of a described pushing out ring, the surface of described spool, prop up the contact surface of pushing out ring and spool, valve gap and the contact surface of spool are respectively equipped with tungsten carbide hard alloy coating.
As preferably, described valve rod axially and being axially mutually perpendicular to of through hole.
As preferably, the inner outside of described valve rod is provided with bulge loop, is provided with thrust bearing between described bulge loop and the inner end of valve rod hole.
As preferably, described valve rod hole offers ring packing groove, it is filled with airtight and watertight padding in described ring packing groove, the inner place being positioned at airtight and watertight padding on described valve rod is provided with turning set, the outer end place being positioned at airtight and watertight padding on described valve rod is provided with pressure ring, the outside of described pressure ring is provided with pressing plate, and described pressing plate is fastenedly connected by the second bolt assembly and valve body.
As preferably, described spool is provided with, in the one end near a pushing out ring, the pressure release breach connected with through hole, and when spool is closed, described pressure release breach is positioned at a described pushing out ring.
The beneficial effects of the utility model: compared with prior art, a kind of high-pressure ball valve that this utility model provides, rational in infrastructure, the metallic packing ring of biconial structure it is provided with in the junction of valve gap Yu valve body, sound construction and high pressure resistant, there is good sealing effectiveness, at spool face and spool and valve gap, prop up and the contact surface of pushing out ring all scribbles tungsten carbide hard alloy coating, wearability is greatly improved, and adopt the combination of a pushing out ring and disc spring, spool is made to have integrated abrasion compensation, guarantee valve initial sealing, through hole one end on spool offers pressure release breach, make spool in the moment opened, flow relatively conventional valve cored structure improves more than 3 times, greatly reduce the medium impulsive force to spool, improve the serviceability of valve, extend the service life of valve.
Feature of the present utility model and advantage will be described in detail in conjunction with accompanying drawing by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of a kind of high-pressure ball valve of this utility model embodiment；
Fig. 2 is the structural representation of the valve body of this utility model embodiment；
Fig. 3 is the structure for amplifying schematic diagram in A portion in Fig. 1；
Fig. 4 is the structure for amplifying schematic diagram in B portion in Fig. 1.
In figure: 1-valve body, 2-valve gap, 20-valve seat, 3-medium inlet hole 30-medium portal, 4-spool, 40-draw-in groove, 5-through hole, 7-valve rod, 70-boss, 71-bulge loop, 72-thrust bearing, 8-metallic packing ring, 9-prop up pushing out ring, 10-disc spring, 11-pressure release breach, 12-turning set, 13-airtight and watertight padding, 14-pressure ring, 15-pressing plate, 16-valve rod hole, 17-ring packing groove, 18-the first bolt assembly, 19-the second bolt assembly.
[detailed description of the invention]
For making the purpose of this utility model, technical scheme and advantage clearly understand, below by accompanying drawing and embodiment, this utility model being further elaborated.However, it should be understood that specific embodiment described herein is only in order to explain this utility model, it is not limited to scope of the present utility model.Additionally, in the following description, eliminate the description to known features and technology, to avoid unnecessarily obscuring concept of the present utility model.
Consult Fig. 1 to Fig. 4, this utility model embodiment provides a kind of high-pressure ball valve, including valve body 1, valve gap 2, spool 4 and valve rod 7, described valve gap 2 is fastenedly connected with valve body 1 by the first bolt assembly 18, it is provided with medium inlet hole 3 in described valve body 1, described valve gap 2 is provided with the medium coaxial with medium inlet hole 3 and portals 30, it is provided with spool 4 in described valve body 1, a through hole 5 running through spool 4 is offered in described spool 4, described spool 4 is offered a draw-in groove 40, described valve body 1 offers valve rod hole 16, it is provided with valve rod 7 in described valve rod hole 16, the end of described valve rod 7 is provided with the boss 70 coordinated with draw-in groove 40, described valve body 1 and the junction of valve gap 2 are provided with metallic packing ring 8, the outside of described metallic packing ring 8 is the biconial structure that intermediate projections two ends tilt, described valve gap 2 in medium portal 30 the inner be provided with and the valve seat 20 of spool 4 side sphere-contact, described valve seat 20 is structure as a whole with valve gap 2, between medium inlet hole 3 the inner and the spool 4 of described valve body 1, a pushing out ring 9 is installed, one end of a described pushing out ring 9 and the opposite side sphere-contact of spool 4, it is provided with disc spring 10 between the other end and the valve body 1 of a described pushing out ring 9, the surface of described spool 4, prop up the contact surface of pushing out ring 9 and spool 4, valve gap 2 and the contact surface of spool 4 are respectively equipped with tungsten carbide hard alloy coating.
Wherein, the surface of spool 4, a pushing out ring 9 can strengthen spool 4 with the tungsten carbide hard alloy coating on the contact surface of spool 4, the valve gap 2 contact surface with spool 4 and prop up the crocking resistance of a pushing out ring 9, valve gap 2 contact surface, improve the sealing of valve simultaneously, extend the service life that valve is overall.
Further, being axially mutually perpendicular to of the axial and through hole 5 of valve rod 7, it is connected with the draw-in groove 40 on spool 4 by the boss 70 of valve rod 7 end, it is achieved the linkage of valve rod 7 and spool 4, rotation valve rod 7 just can reach quickly to the keying of spool 4.
Further, the inner outside of valve rod 7 is provided with bulge loop 71, is provided with thrust bearing 72 between described bulge loop 71 and the inner end of valve rod hole 16.Location is realized by thrust bearing 72 and bulge loop 71.
Further, valve rod hole 16 offers ring packing groove 17, it is filled with airtight and watertight padding 13 in described ring packing groove 17, the inner place being positioned at airtight and watertight padding 13 on described valve rod 7 is provided with turning set 12, the outer end place being positioned at airtight and watertight padding 13 on described valve rod 7 is provided with pressure ring 14, the outside of described pressure ring 14 is provided with pressing plate 15, and described pressing plate 15 is fastenedly connected with valve body 1 by the second bolt assembly 19.Realized the sealing of valve rod 7 by airtight and watertight padding 13, pressure ring 14 and turning set 12, realize valve rod 7 by pressing plate 15 and be connected with the fixing of valve body 1.
Further, spool 4 is provided with, in the one end near a pushing out ring 9, the pressure release breach 11 connected with through hole 5, and when spool 4 is closed, described pressure release breach 11 is positioned at a described pushing out ring 9.When spool 4 is opening moment, arranging of pressure release breach 11 can improve moment flow, and more traditional valve core structure flow improves more than 3 times, slow down moment flow when the opening impulsive force to spool 4, improves the service life of spool 4.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent replacement or improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.
Claims (5)
1. a high-pressure ball valve, including valve body (1), valve gap (2), spool (4) and valve rod (7), described valve gap (2) is fastenedly connected by the first bolt assembly (18) and valve body (1), it is provided with medium inlet hole (3) in described valve body (1), described valve gap (2) is provided with the medium coaxial with medium inlet hole (3) and portals (30), it is provided with spool (4) in described valve body (1), a through hole (5) running through spool (4) is offered in described spool (4), described spool (4) offers a draw-in groove (40), described valve body (1) offers valve rod hole (16), it is provided with valve rod (7) in described valve rod hole (16), the end of described valve rod (7) is provided with the boss (70) coordinated with draw-in groove (40), it is characterized in that: the junction of described valve body (1) and valve gap (2) is provided with metallic packing ring (8), the outside of described metallic packing ring (8) is the biconial structure that intermediate projections two ends tilt, described valve gap (2) is provided with and the valve seat (20) of spool (4) side sphere-contact in the portal the inner of (30) of medium, described valve seat (20) and valve gap (2) are structure as a whole, between medium inlet hole (3) the inner and the spool (4) of described valve body (1), a pushing out ring (9) is installed, one end of a described pushing out ring (9) and the opposite side sphere-contact of spool (4), it is provided with disc spring (10) between the other end and the valve body (1) of a described pushing out ring (9), the surface of described spool (4), prop up the contact surface of pushing out ring (9) and spool (4), valve gap (2) and the contact surface of spool (4) are respectively equipped with tungsten carbide hard alloy coating.
2. a kind of high-pressure ball valve as claimed in claim 1, it is characterised in that: being axially mutually perpendicular to of axial and through hole (5) of described valve rod (7).
3. a kind of high-pressure ball valve as claimed in claim 1, it is characterized in that: the inner outside of described valve rod (7) is provided with bulge loop (71), is provided with thrust bearing (72) between described bulge loop (71) and the inner end of valve rod hole (16).
4. a kind of high-pressure ball valve as claimed in claim 1, it is characterized in that: described valve rod hole (16) offers ring packing groove (17), it is filled with airtight and watertight padding (13) in described ring packing groove (17), the inner place being positioned at airtight and watertight padding (13) on described valve rod (7) is provided with turning set (12), the outer end place being positioned at airtight and watertight padding (13) on described valve rod (7) is provided with pressure ring (14), the outside of described pressure ring (14) is provided with pressing plate (15), described pressing plate (15) is fastenedly connected by the second bolt assembly (19) and valve body (1).
5. a kind of high-pressure ball valve as claimed in claim 1, it is characterized in that: described spool (4) is provided with, in the one end near a pushing out ring (9), the pressure release breach (11) connected with through hole (5), when spool (4) is closed, described pressure release breach (11) is positioned at a described pushing out ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620018449.5U CN205350422U (en) | 2016-01-08 | 2016-01-08 | High pressure ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620018449.5U CN205350422U (en) | 2016-01-08 | 2016-01-08 | High pressure ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350422U true CN205350422U (en) | 2016-06-29 |
Family
ID=56175517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620018449.5U Expired - Fee Related CN205350422U (en) | 2016-01-08 | 2016-01-08 | High pressure ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205350422U (en) |
-
2016
- 2016-01-08 CN CN201620018449.5U patent/CN205350422U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20190108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |