CN208686996U - 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
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- CN208686996U CN208686996U CN201821228583.3U CN201821228583U CN208686996U CN 208686996 U CN208686996 U CN 208686996U CN 201821228583 U CN201821228583 U CN 201821228583U CN 208686996 U CN208686996 U CN 208686996U
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Abstract
The utility model 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 bracket, 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 bracket 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 and the top surface of valve rod accommodating cavity are equipped with gap；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 utility model reduces the frictional force of valve rod rotation in the position setting guide and limit bearing that valve rod stretches out valve body, 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 utility model belongs to valve technology field, specifically a kind of multiple anti-blow ball valve of low torque.
Background technique
Ball valve can be applicable to the industries such as petroleum, 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 by sphere to reach a kind of valve of unlatching, closing, 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, high-pressure medium is full of in valve, medium power has one to valve rod
Upward thrust prevents valve rod 4 from blowing out valve body 1 at this time using the fixed valve rod 4 of divided ring 5.Existing for ball valve in the prior art
Drawback is after valve is installed on system, and medium has a upward thrust to valve rod always 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.
Utility model content
The purpose of the utility model is to provide a kind of multiple anti-blow ball valves of low torque, and guide and limit axis is added on valve rod
It holds, reduces the frictional force in valve rod rotary course, so that valve opening and closing power is reduced, and guide and limit bearing is alternatively arranged as first
The anti-blow structure of valve rod uses, and guarantees the service life of valve body.
In order to solve the above technical problems, the utility model provides a kind of multiple anti-blow ball valve of low torque, including valve body,
Spool, valve rod and valve rod bracket, the valve body is interior to be equipped with valve chamber, and the spool is arranged in the valve chamber, under the valve rod
End 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 bracket is fixed on the valve body
On, 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, the valve rod
It is 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 installation
In slot, the top surface of the divided ring and the top surface of valve rod accommodating cavity are equipped with gap；The upper end of the valve rod is equipped with positive stop lug boss, institute
The top that the positive stop lug boss is arranged in guide and limit bearing is stated, the guide and limit bearing is compressed by bearing gland, described
Bearing gland is fixed on the valve rod bracket.
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 and valve body are equipped with packing cavity, and filler is equipped in the packing cavity, is set above the filler
There is filler pressing sleeve, is fastened above the filler pressing sleeve by hold-down grid, the hold-down grid is fixed on the valve body.
Further, the upper end of the valve rod passes through the valve rod bracket, and the top of the valve rod is equipped with handle.
The beneficial effects of the utility model are: the utility model ball valve 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
The frictional force in valve rod rotary course is reduced while valve body cost, so that valve opening and closing torque is reduced, and bearing arrangement can be made
It is used for the anti-blow structure of first of valve rod；Gap is provided between divided ring and valve body simultaneously, avoids valve body and divided ring
Between friction, reduce the abrasion of valve body and divided ring, when the anti-blow structure of first of valve rod support removing on ball valve is lost
After effect, valve rod is moved up, and divided ring and valve body step-shaped top face contact form the anti-blow structure in second road, is prevented valve rod and is situated between by high pressure
Matter blowout, causes valve leakage out of steam system or human casualty accident, ensures valve safe operation, increases the service life of valve body.
Detailed description of the invention
It, below will be to institute in embodiment or description of the prior art in order to illustrate more clearly of the technical solution of the utility model
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the utility model
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the structural schematic diagram of ball valve in the utility model background technique；
Fig. 2 is the structural schematic diagram of the utility model ball valve.
In figure: 1- valve body, 2- valve chamber, 3- spool, 4- valve rod, 5- divided ring, 6- guide and limit bearing, 7- valve rod bracket,
8- bearing gland, 9- handle, 10- filler, 11- filler pressing sleeve, 12- hold-down grid, 21- valve rod accommodating cavity, 41- positive stop lug boss,
The gap 211-.
Specific embodiment
Below in conjunction with the utility model Figure of description, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative labor
Every other embodiment obtained, fall within the protection scope of the utility model.
In a specific embodiment of the utility model, as shown in Fig. 2, specifically disclosing, a kind of low torque is multiple to prevent blowing
Ball valve out, including valve body 1, spool 3, valve rod 4 and valve rod bracket 7, the valve body 1 is interior to be equipped with valve chamber 2, and the setting of spool 3 exists
In the valve chamber 2, the lower end of the valve rod 4 is mounted in spool 3, and the valve body 1, institute are stretched out in the upper end of the valve rod 4
It states valve rod bracket 7 to be fixed on the valve body 1, the top of the valve chamber 2 is equipped with valve rod accommodating cavity 21, the lower end of the valve rod 4
It 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 guiding
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
It is close to the bearing gland 8；The lower end of the valve rod 4 is equipped with mounting groove, and the divided ring 5 is set in the mounting groove,
The top surface of the divided ring 5 and the top surface of 2 valve rod accommodating cavity 21 of valve chamber are equipped with gap 211；The upper end of the valve rod 4 is equipped with limit
The top of the positive stop lug boss 41 is arranged in boss 41, the guide and limit bearing 6, and the guide and limit bearing 6 passes through bearing
Gland 8 compresses, and the bearing gland 8 is fixed on the valve rod bracket 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 is filler pressing sleeve 11, is fastened above the filler pressing sleeve 11 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 bracket 7, and the top of the valve rod 4 is equipped with handle 9, and the handle 9 is used
In pulling valve rod, valve core rotation is driven to realize the opening and closing of valve.
The working process of the utility model is as follows: when ball valve is opened, swing handle 9, handle 9 is rotated with ovable valve stem 4, valve
Bar 4 is rotated with movable valve plug 3, and ball valve is opened, and ball valve is worked normally；When ball valve is closed, swing handle 9 closes ball valve；
Due to having gap between divided ring 5 and the step top surface of valve chamber 2, it not will increase the torque of valve opening and closing, increased on valve rod
Thrust bearing reduces frictional force of the valve rod in rotary course, to reduce valve opening and closing torque.Ball valve is installed on system pipes
When road, high-pressure medium is full of in ball valve, medium power has a upward thrust to valve rod 4, at this time the positive stop lug boss 41 of valve rod
Valve rod 4 is prevented to be pushed out with the compression of guide and limit bearing 6, first of anti-blow structure of formation, and the platform of divided ring 5 and valve chamber 2
Rank still has gap between top surface.When valve rod bracket 7, which loosens or need to remove, to be repaired, medium is pushed ovable valve stem 4 and is moved upwards, the
Together after anti-blow structural failure, the gap between the step top surface of divided ring 5 and valve chamber 2 disappears, and the is formed after being bonded to each other
The anti-blowing structure of two valve rods avoids valve rod from flying out and causes the damage of valve body and the injury of personnel.
The beneficial effects of the utility model are: the utility model ball valve 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
The frictional force in valve rod rotary course is reduced while valve body cost, so that valve opening and closing torque is reduced, and bearing arrangement can be made
It is used for the anti-blow structure of first of valve rod；Gap is provided between divided ring and valve body simultaneously, avoids valve body and divided ring
Between friction, reduce the abrasion of valve body and divided ring, when the anti-blow structure of first of valve rod support removing on ball valve is lost
After effect, valve rod is moved up, and divided ring and valve body step-shaped top face contact form the anti-blow structure in second road, is prevented valve rod and is situated between by high pressure
Matter blowout, causes valve leakage out of steam system or human casualty accident, ensures valve safe operation, increases the service life of valve body.
Above disclosed is only a kind of preferred embodiment of the utility model, cannot limit this reality certainly with this
With novel interest field, therefore equivalent variations made according to the claim of the utility model, still belong to the utility model and is covered
Range.
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 bracket (7), described
Valve chamber (2) are 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 bracket (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 bracket (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
It (6) 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
State bearing gland (8) abutting.
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, is equipped with filler (10) in the packing cavity, and the top of the filler (10) is equipped with filler pressing sleeve (11),
It is fastened above the filler pressing sleeve (11) by hold-down grid (12), 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 bracket (7), the top of the valve rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821228583.3U CN208686996U (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 |
|---|---|---|---|
| CN201821228583.3U CN208686996U (en) | 2018-08-01 | 2018-08-01 | A kind of multiple anti-blow ball valve of low torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208686996U true CN208686996U (en) | 2019-04-02 |
Family
ID=65882948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821228583.3U Active CN208686996U (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) | CN208686996U (en) |
-
2018
- 2018-08-01 CN CN201821228583.3U patent/CN208686996U/en active Active
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