CN108692058A - A kind of multiple anti-blow ball valve of low torque - Google Patents
A kind of multiple anti-blow ball valve of low torque Download PDFInfo
- Publication number
- CN108692058A CN108692058A CN201810863011.0A CN201810863011A CN108692058A CN 108692058 A CN108692058 A CN 108692058A CN 201810863011 A CN201810863011 A CN 201810863011A CN 108692058 A CN108692058 A CN 108692058A
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- CN
- China
- Prior art keywords
- valve
- valve rod
- valve body
- bearing
- guide
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
- F16K41/043—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing for spindles which only rotate, i.e. non-rising spindles
- F16K41/046—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing for spindles which only rotate, i.e. non-rising spindles for rotating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The present invention relates to valve fields, specifically disclose a kind of multiple anti-blow ball valve of low torque, including valve body, spool, valve rod and valve rod holder, valve chamber is equipped in valve body, spool is arranged in valve chamber, the lower end of valve rod is mounted in spool, valve body is stretched out in upper end, valve rod holder is fixed on valve body, valve chamber top is equipped with valve rod accommodating cavity, and valve rod is equipped with divided ring and guide and limit bearing, and the lower end of valve rod is equipped with mounting groove, divided ring is set in mounting groove, and the top surface of divided ring is equipped with gap with the top surface of valve rod accommodating cavity;The upper end of valve rod is equipped with positive stop lug boss, and guide and limit bearing is arranged above positive stop lug boss.The position setting guide and limit bearing that the present invention stretches out valve body in valve rod reduces the frictional force that valve rod rotates, to reduce valve opening and closing torque;Bearing arrangement and split ring structure can be formed simultaneously the anti-blow structure of twice, prevent valve rod and blown out by high-pressure medium, cause valve leakage out of steam system or human casualty accident, ensure valve safe operation.
Description
Technical field
The invention belongs to valve technology field, specifically a kind of multiple anti-blow ball valve of low torque.
Background technology
Ball valve can be applicable to the industries such as oil, chemical industry, natural gas, electric power, be a kind of general ball valve that is of wide application, ball
Valve is to make rotation around valve body center line to reach a kind of valve of unlatching, closing by sphere, and ball valve is mainly used in pipeline
Make the flow direction for cutting off, distributing and changing medium.
Ball valve (as shown in Figure 1) in the prior art generally includes valve body 1, spool 3, valve rod 4 and handle, by valve rod
Divided ring 5 is set on 4, when valve is installed on system pipeline, is full of high-pressure medium in valve, medium power is to there are one valve rods
Upward thrust utilizes divided ring 5 to fix valve rod 4 at this time, prevents valve rod 4 from blowing out valve body 1.Existing for ball valve in the prior art
Drawback is after valve is installed on system, and medium has a upward thrust always to valve rod in valve, which pushes valve rod
And divided ring is moved upwards and is contacted afterwards with valve body step, and when rotary valve rod opening/shutting valve, divided ring and valve rod and valve body step
Place generates larger frictional force, and the more high then frictional force of pressure medium for flowing through valve is bigger, causes valve opening and closing power very big.
Invention content
The object of the present invention is to provide a kind of multiple anti-blow ball valves of low torque, and guide and limit bearing is added on valve rod,
The frictional force in valve rod rotary course is reduced, to reduce valve opening and closing power, and guide and limit bearing is alternatively arranged as first of valve
The anti-blow structure of bar uses, and ensures the service life of valve body.
In order to solve the above technical problems, the present invention provides a kind of multiple anti-blow ball valve of low torque, including valve body, valve
Core, valve rod and valve rod holder, the valve body is interior to be equipped with valve chamber, and the spool is arranged in the valve chamber, the lower end of the valve rod
End is mounted in the spool, and the valve body is stretched out in the upper end of the valve rod, and the valve rod holder is fixed on the valve body,
The top of the valve chamber is equipped with valve rod accommodating cavity, and the lower end of the valve rod is arranged in the valve rod accommodating cavity, on the valve rod
Equipped with divided ring and guide and limit bearing, the lower end of the valve rod is equipped with mounting groove, and the divided ring is set in the mounting groove
Interior, the top surface of the divided ring is equipped with gap with the top surface of valve rod accommodating cavity;The upper end of the valve rod is equipped with positive stop lug boss, described
Guide and limit bearing is arranged in the top of the positive stop lug boss, and the guide and limit bearing is compressed by bearing gland, the axis
Pressure cap is fixed on the valve rod holder.
Further, the guide and limit bearing is thrust bearing, the bottom of the thrust bearing and the positive stop lug boss
It is close to, the top of the thrust bearing is close to the bearing gland.
Specifically, the valve rod is equipped with packing cavity with valve body, and filler is equipped in the packing cavity, is set above the filler
There is filler pressing sleeve, is fastened by hold-down grid above the filler pressing sleeve, the hold-down grid is fixed on the valve body.
Further, the upper end of the valve rod passes through the valve rod holder, the top of the valve rod to be equipped with handle.
The beneficial effects of the invention are as follows:Ball valve of the present invention is provided with guide and limit bearing in the outside of valve body, compact-sized,
Manufacturing cost is low, applied widely, and guide and limit bearing, which is arranged, in the part by stretching out valve body on valve rod reduces valve body cost
While reduce valve rod rotary course in frictional force, to reduce valve opening and closing torque, and bearing arrangement can be used as first
The anti-blow structure of valve rod uses;Gap is provided between divided ring and valve body simultaneously, avoids rubbing between valve body and divided ring
It wipes, reduces the abrasion of valve body and divided ring, after valve rod first of anti-blow structural failure of support removing on ball valve, valve rod
It moves up, divided ring contacts to form the anti-blow structure in second road with valve body step top surface, prevents valve rod and is blown out by high-pressure medium, is made
At valve leakage out of steam system or human casualty accident, ensures valve safe operation, increase the service life of valve body.
Description of the drawings
It, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of technical scheme of the present invention
The attached drawing used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Its attached drawing.
Fig. 1 is the structural schematic diagram of ball valve in background of invention;
Fig. 2 is the structural schematic diagram of ball valve of the present invention.
In figure:1- valve bodies, 2- valve chambers, 3- spools, 4- valve rods, 5- divided rings, 6- guide and limit bearings, 7- valve rod holders,
8- bearing glands, 9- handles, 10- fillers, 11- filler pressing sleeves, 12- hold-down grids, 21- valve rod accommodating cavities, 41- positive stop lug boss,
The gaps 211-.
Specific implementation mode
Below in conjunction with description of the invention attached drawing, technical solution in the embodiment of the present invention carries out clearly and completely
Description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other reality that those of ordinary skill in the art are obtained under the premise of not making creative work
Example is applied, shall fall within the protection scope of the present invention.
In one particular embodiment of the present invention, as shown in Fig. 2, specifically disclosing a kind of multiple anti-blow ball of low torque
Valve, including valve body 1, spool 3, valve rod 4 and valve rod holder 7, the valve body 1 is interior to be equipped with valve chamber 2, and the spool 3 is arranged described
In valve chamber 2, the lower end of the valve rod 4 is mounted in spool 3, and the valve body 1, the valve are stretched out in the upper end of the valve rod 4
Bar holder 7 is fixed on the valve body 1, and the top of the valve chamber 2 is equipped with valve rod accommodating cavity 21, and the lower end of the valve rod 4 is arranged
In the valve rod accommodating cavity 21, the valve rod 4 is equipped with divided ring 5 and guide and limit bearing 6, the preferably described guide and limit
Bearing 6 is that the bottom of thrust bearing described in thrust bearing is close to the positive stop lug boss 41, the top of the thrust bearing and institute
Bearing gland 8 is stated to be close to;The lower end of the valve rod 4 is equipped with mounting groove, and the divided ring 5 is set in the mounting groove, described
The top surface of divided ring 5 is equipped with gap 211 with the top surface of 2 valve rod accommodating cavity 21 of valve chamber;The upper end of the valve rod 4 is equipped with positive stop lug boss
41, the guide and limit bearing 6 is arranged in the top of the positive stop lug boss 41, and the guide and limit bearing 6 passes through bearing gland 8
It compresses, the bearing gland 8 is fixed on the valve rod holder 7.
The valve rod 4 is equipped with packing cavity with valve body 1, is equipped with filler 10 in the packing cavity, the top of the filler 10 is set
There are filler pressing sleeve 11,11 top of the filler pressing sleeve to be fastened by hold-down grid 12, the hold-down grid 12 is fixed on the valve
On body 1, filler 10 plays the role of sealing,
The upper end of the valve rod 4 passes through the valve rod holder 7, the top of the valve rod 4 to be equipped with handle 9, and the handle 9 is used
In pulling valve rod, drive valve core rotation to realize the opening and closing of valve.
The present invention the course of work be:When ball valve is opened, swing handle 9, handle 9 is rotated with ovable valve stem 4, valve rod 4
Band movable valve plug 3 is rotated, and ball valve is opened, and ball valve is worked normally;When ball valve is closed, swing handle 9 closes ball valve;By
There is gap between divided ring 5 and the step top surface of valve chamber 2, the torque of valve opening and closing will not be increased, increases and push away on valve rod
Power bearing reduces frictional force of the valve rod in rotary course, to reduce valve opening and closing torque.Ball valve is installed on system pipeline
When upper, be full of high-pressure medium in ball valve, medium power to valve rod 4 there are one upward thrust, at this time the positive stop lug boss 41 of valve rod with
The compression of guide and limit bearing 6 prevents valve rod 4 to be pushed out, first of anti-blow structure of formation, and the step of divided ring 5 and valve chamber 2
Still there is gap between top surface.When valve rod holder 7, which loosens or need to remove, to be repaired, medium is pushed ovable valve stem 4 and is moved upwards, and first
After the anti-blow structural failure in road, the gap between the step top surface of divided ring 5 and valve chamber 2 disappears, and second is formed after being bonded to each other
Valve rod anti-blowing structure in road avoids valve rod from flying out and causes the damage of valve body and the injury of personnel.
The beneficial effects of the invention are as follows:Ball valve of the present invention is provided with guide and limit bearing in the outside of valve body, compact-sized,
Manufacturing cost is low, applied widely, and guide and limit bearing, which is arranged, in the part by stretching out valve body on valve rod reduces valve body cost
While reduce valve rod rotary course in frictional force, to reduce valve opening and closing torque, and bearing arrangement can be used as first
The anti-blow structure of valve rod uses;Gap is provided between divided ring and valve body simultaneously, avoids rubbing between valve body and divided ring
It wipes, reduces the abrasion of valve body and divided ring, after valve rod first of anti-blow structural failure of support removing on ball valve, valve rod
It moves up, divided ring contacts to form the anti-blow structure in second road with valve body step top surface, prevents valve rod and is blown out by high-pressure medium, is made
At valve leakage out of steam system or human casualty accident, ensures valve safe operation, increase the service life of valve body.
Above disclosed is only a kind of preferred embodiment of the present invention, cannot limit the present invention's with this certainly
Interest field, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (4)
1. a kind of multiple anti-blow ball valve of low torque, including valve body (1), spool (3), valve rod (4) and valve rod holder (7), described
Valve chamber (2) is equipped in valve body (1), spool (3) setting is in the valve chamber (2), the lower end installation of the valve rod (4)
In the spool (3), the valve body (1) is stretched out in the upper end of the valve rod (4), and the valve rod holder (7) is fixed on the valve
On body (1), which is characterized in that the top of the valve chamber (2) is equipped with valve rod accommodating cavity (21), and the lower end of the valve rod (4) is arranged
In the valve rod accommodating cavity (21), divided ring (5) and guide and limit bearing (6), the valve rod are installed on the valve rod (4)
(4) lower end is equipped with mounting groove, and the divided ring (5) is set in the mounting groove, the top surface of the divided ring (5) with it is described
The top surface of valve rod accommodating cavity (21) is equipped with gap (211);The upper end of the valve rod (4) is equipped with positive stop lug boss (41), the guiding
Limit Bearing (6) setting is pressed in the top of the positive stop lug boss (41), the guide and limit bearing (6) by bearing gland (8)
Tightly, the bearing gland (8) is fixed on the valve rod holder (7).
2. the multiple anti-blow ball valve of a kind of low torque according to claim 1, which is characterized in that the guide and limit bearing
(6) it is thrust bearing, the bottom of the thrust bearing is close to the positive stop lug boss (41), the top of the thrust bearing and institute
Bearing gland (8) is stated to be close to.
3. the multiple anti-blow ball valve of a kind of low torque according to claim 1, which is characterized in that the valve rod (4) and valve
Body (1) is equipped with packing cavity, and filler (10) is equipped in the packing cavity, and the top of the filler (10) is equipped with filler pressing sleeve (11),
It is fastened by hold-down grid (12) above the filler pressing sleeve (11), the hold-down grid (12) is fixed on the valve body (1).
4. the multiple anti-blow ball valve of a kind of low torque according to claim 3, which is characterized in that the valve rod (4) it is upper
End is equipped with handle (9) across the valve rod holder (7), the top of the valve rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810863011.0A CN108692058A (en) | 2018-08-01 | 2018-08-01 | A kind of multiple anti-blow ball valve of low torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810863011.0A CN108692058A (en) | 2018-08-01 | 2018-08-01 | A kind of multiple anti-blow ball valve of low torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108692058A true CN108692058A (en) | 2018-10-23 |
Family
ID=63851816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810863011.0A Withdrawn CN108692058A (en) | 2018-08-01 | 2018-08-01 | A kind of multiple anti-blow ball valve of low torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108692058A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803509A (en) * | 2021-08-25 | 2021-12-17 | 浙江中控流体技术有限公司 | Positioning, aligning and mounting tool for valve actuating mechanism support |
| CN115126883A (en) * | 2022-08-11 | 2022-09-30 | 中国空气动力研究与发展中心高速空气动力研究所 | Valve rod blowout prevention device for butterfly valve |
-
2018
- 2018-08-01 CN CN201810863011.0A patent/CN108692058A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803509A (en) * | 2021-08-25 | 2021-12-17 | 浙江中控流体技术有限公司 | Positioning, aligning and mounting tool for valve actuating mechanism support |
| CN113803509B (en) * | 2021-08-25 | 2024-06-04 | 浙江中控流体技术有限公司 | Positioning, aligning and installing tool for valve actuating mechanism bracket |
| CN115126883A (en) * | 2022-08-11 | 2022-09-30 | 中国空气动力研究与发展中心高速空气动力研究所 | Valve rod blowout prevention device for butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181023 |
|
| WW01 | Invention patent application withdrawn after publication |