CN208185501U - A kind of adjustable resistance single piece type ball valve - Google Patents
A kind of adjustable resistance single piece type ball valve Download PDFInfo
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- CN208185501U CN208185501U CN201820433654.7U CN201820433654U CN208185501U CN 208185501 U CN208185501 U CN 208185501U CN 201820433654 U CN201820433654 U CN 201820433654U CN 208185501 U CN208185501 U CN 208185501U
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- valve
- metal gasket
- valve rod
- grooved metal
- spanner
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Abstract
The utility model discloses a kind of adjustable resistance single piece type ball valve, it is characterized in that: spool is limited in valve cavity by valve deck, valve rod is inserted in the spool rectangular channel, valve stem nut is tightened in the play up and down that valve rod is prevented on valve body, clamp is stuck in the groove of the valve rod, grooved metal gasket, spanner, compressed spring is set in valve rod rectangular section section according to sequence from bottom to top, self-locking nut is tightened against limited spring at threaded stem and flies out, the compressed spring compresses downwards spanner and grooved metal gasket, the clamp prevention grooved metal gasket continues to move down contactless with grooved metal gasket, after clamp drawing removes, it is embedded in the rotary resistance of increase mutually using the double wedge of grooved metal gasket and valve stem nut, make up the frictional force reduced after ball valve abrasion.It replaces common single piece type ball valve to be installed in each pipeline with this adjustable resistance single piece type ball valve, can effectively solve the problems, such as that the ball valve of senile abrasion cannot maintain current aperture after hand is taken away.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, is related to a kind of ball valve, in particular to a kind of single piece type ball valve.
Background technique
Single piece type ball valve is a kind of novel valve being widely adopted in recent years, its closure member is a sphere, sphere around
Valve body center line makees rotation to achieve the purpose that unlatching, closing, is mainly used to cut off, distribute and change the flow direction of medium.
The advantages that single piece type ball valve of the structure has structure simple, small in volume, opening and closing frictional force small low torque, but this kind
Can be with the increase of opening and closing number in structure use process, the gap of steel ball and valve seat is increasing, and the torque of opening and closing gradually subtracts
Small, until the moment of friction of spool, valve rod and valve body is not enough to overcome the gravitational moment of longer spanner, especially perpendicular dress is pulled
Hand extremely loosens the phenomenon that can not vacantly stopping i.e. pipeline and is constantly in open or closed state.It is such to maintain valve opening
Situation can bring huge trouble and hidden danger to production and living.
Summary of the invention
The purpose of this utility model is to provide the one of a kind of resistance changeable for the above-mentioned problems in the prior art
Chip ball valve, after prolonged opening and closing abrasion, the frictional force of valve core valve stem and valve body is gradually reduced, so that the rotation of spanner is extremely
It loosens, perpendicular dress even will appear the problem of spanner falls automatically, at this time extract clamp manually, and holddown spring is by spanner and tooth form
Gasket pushes down together, contacts increase resistance using the double wedge of grooved metal gasket and valve stem nut and makes up moment of friction, restores single piece type
Ball valve maintains the ability of certain aperture after hand relieving.
The utility model adopts the following technical scheme that in order to solve the technical problem
A kind of adjustable resistance single piece type ball valve of the invention is structurally characterized in that: spool (1) is limited to valve body by valve deck (2)
(10) in cavity, valve rod (3) are inserted in spool (1) rectangular channel, valve rod (3) band movable valve plug (1) can be made to rotate, valve stem nut
(4) it is tightened in and compresses the upward play that valve rod (3) flange prevents valve rod (3) on valve body (10), clamp (5) is stuck in the valve rod
(3) in groove, grooved metal gasket (6), spanner (9), compressed spring (8) are set in valve rod (3) square according to sequence from bottom to top
Tee section section can make the torque from spanner (9), grooved metal gasket (6) pass to spool (1), self-locking nut by valve rod (3)
(7) it being tightened against at the screw thread of valve rod (3) the top, the compressed spring (8) compresses downwards spanner (9) and grooved metal gasket (6),
The clamp (5) prevents grooved metal gasket (6) from continuing to move down, and the valve stem nut (4) and grooved metal gasket (6) are contactless, clamp (5)
After drawing removes, compressed spring (8) pushes down on spanner (9) and grooved metal gasket (6), grooved metal gasket (6) and valve stem nut (4) it is convex
Tooth contact increases resistance, and tooth climbs and falls by compressed spring (8) counteracting in relatively rotating, and the promotion of resistance passes through tooth form
Gasket (6) is transferred to valve rod (3), spool (1) and spanner (9), is stuck in certain angle after making spanner (9) again there is hand to take away
Ability, i.e. the valve holding capacity of having restored aperture.
A kind of design feature of adjustable resistance single piece type ball valve of the present invention also resides in:
There is the radial flute profile end face of circular hole centered on the valve stem nut (4), tooth form is shorter closeer；The grooved metal gasket
(6) lower end surface is non-porous identical radial flute profile end face, and the two, which can be mutually embedded in, increases relative rotation resistance；The clamp (5)
Preferred using the plastic material with certain elasticity for Y shape, Y shape or so two-arm can be by being stuck in the respective slots of valve rod (3)
Place provides enough intensity and grooved metal gasket (6) is prevented to move down, and unidirectional barb is equipped at two-arm, can prevent loosening for non-external force,
And it is removed when necessary convenient for drawing manually；Groove on the valve rod (3) is only opened at clamp (5) Y shape or so two-arm, can avoid tooth
The Caton that shape gasket (6) and spanner (9) are slided up and down in valve rod (3).
Compared with the prior art, the utility model has the beneficial effect that:
(1) the utility model is simple and compact for structure has installation compatibility, using flexible, easy disassembly, using effect peace
It is complete reliable；
(2) the utility model uses grooved metal gasket structure, after ball valve is using abrasion, can draw except clamp, use grooved metal gasket
The moment of resistance compensate reduceds moment of friction, eliminate the phenomenon that perpendicular dress ball valve spanner falls automatically, extend ball valve uses the longevity
Life, improves the safety in utilization of pipeline, economic and reliable.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model
Fig. 2 is mounted on spanner in vertical pipeline for the utility model and is in open and closed schematic diagram
Fig. 3 is that the utility model clamp extracts valve rod schematic diagram out
It is numbered in figure:
1 spool, 2 valve decks, 3 valve rods, 4 valve stem nuts, 5 clamps, 6 grooved metal gaskets, 7 self-locking nuts, 8 compressed springs, 9 pull
Hand, 10 valve bodies.
Specific embodiment:
Referring to Fig. 1 and Fig. 2, a kind of structure type of adjustable resistance single piece type ball valve is in the present embodiment:
Spool 1 is limited in 10 cavity of valve body by valve deck 2, is inserted with valve rod 3 in 1 rectangular channel of spool, can be made 3 band of valve rod
Movable valve plug 1 rotates, and valve stem nut 4 is tightened in and compresses the upward play that 3 flange of valve rod prevents valve rod 3 on valve body 10, and clamp 5 is stuck in
In the groove of the valve rod 3, grooved metal gasket 6, spanner 9, compressed spring 8 are set in 3 rectangle of valve rod according to sequence from bottom to top
Section can make the torque from spanner 9, grooved metal gasket 6 pass to spool 1 by valve rod 3, and self-locking nut 7 is tightened against valve rod 3
At the screw thread of the top, the compressed spring 8 compresses downwards spanner 9 and grooved metal gasket 6, and the clamp 5 prevents grooved metal gasket 6
Continue to move down, the valve stem nut 4 and grooved metal gasket 6 are contactless, and after the drawing of clamp 5 removes, compressed spring 8 is by spanner 9 and dentiform gasket
Piece 6 pushes down on, the contact of the double wedge of grooved metal gasket 6 and valve stem nut 4 increases resistance, and tooth climbing and falling in relatively rotating
It is offset by compressed spring 8, the promotion of resistance is transferred to valve rod 3, spool 1 and spanner 9 by grooved metal gasket 6, has spanner 9 again
It is stuck in the ability of certain angle after having hand to take away, i.e. the valve holding capacity of having restored aperture.
There is the radial flute profile end face of circular hole centered on the valve stem nut 4, tooth form is shorter closeer；Under the grooved metal gasket 6
End face is non-porous identical radial flute profile end face, and the two, which can be mutually embedded in, increases relative rotation resistance；The clamp 5 is Y shape, excellent
The use of choosing has a plastic material of certain elasticity, and Y shape or so two-arm can provide at the respective slot by being stuck in valve rod 3 enough
Intensity prevent grooved metal gasket 6 move down, at two-arm be equipped with unidirectional barb, loosening for non-external force can be prevented, and when necessary just
It is removed in manual drawing；Groove on the valve rod 3 is only opened at clamp 5Y shape or so two-arm, can avoid grooved metal gasket 6 and spanner 9 exists
The Caton that valve rod 3 slides up and down.
Operating process:
After this ball valve is fitted into pipeline, clamp prevents compressed spring 8 that grooved metal gasket 6 is pushed to move down, grooved metal gasket 6 and valve
Stem nut 4 is contactless, turn spanner 9, and pipeline is opened, and hand relies on the resistance between spool 1 and valve body 10 to maintain spanner 9 after unclamping
Various angles are located in, use can be normally opened and closed；With the extension of use time, the increase of number, 1 valve rod 2 of spool mill are opened and closed
, there is the phenomenon that loosening of spanner 9 can not stop within the scope of switch rotary after hand unclamps in damage and pipeline is always at open or closes
Closed state.It draws at this time and removes clamp 5, compressed spring 8 pushes grooved metal gasket 6 to move down, on 4 faying face of grooved metal gasket 6 and valve stem nut
Tooth be meshed and increase resistance；Before turn spanner 9, spanner 9 is lifted up, makes grooved metal gasket 6 and 4 faying face of valve stem nut point
From easily rotatably spanner puts down spanner when needing to stop, and makes grooved metal gasket 6 and valve rod by the elastic force of compressed spring 8
The face of nut 4 is in contact and engages, and prevents grooved metal gasket 6 from rotating, to prevent the rotation of spanner well, maintains spanner
It is fixed on the position of rotation angle, spanner no longer loosens, and ball valve has restored the ability of the certain aperture of maintenance, can continue to use.
Claims (2)
1. a kind of adjustable resistance single piece type ball valve, it is characterized in that: spool (1) is limited in valve body (10) cavity by valve deck (2), institute
It states in spool (1) rectangular channel and is inserted with valve rod (3), valve rod (3) band movable valve plug (1) can be made to rotate, valve stem nut (4) is tightened in valve body
(10) the upward play that valve rod (3) flange prevents valve rod (3) is compressed on, clamp (5) is stuck in the groove of the valve rod (3), tooth
Shape gasket (6), spanner (9), compressed spring (8) are set in valve rod (3) rectangular section section according to sequence from bottom to top, can make to come
It is passed to spool (1) from the torque of spanner (9), grooved metal gasket (6) by valve rod (3), self-locking nut (7) is tightened against valve rod (3)
At the screw thread of the top, the compressed spring (8) compresses downwards spanner (9) and grooved metal gasket (6), and the clamp (5) prevents
Grooved metal gasket (6) continues to move down, and the valve stem nut (4) and grooved metal gasket (6) are contactless, after clamp (5) drawing removes, compressed spring
(8) spanner (9) and grooved metal gasket (6) are pushed down on, the double wedge contact of grooved metal gasket (6) and valve stem nut (4) utilizes tooth
Insertion increases rotational resistance mutually, and the displacement fallen and generated of climbing of tooth is offset by compressed spring (8) in relatively rotating, resistance
Promotion be transferred to valve rod (3), spool (1) and spanner (9) by grooved metal gasket (6), after taking away spanner (9) with hand again
It is stuck in the ability of certain angle, i.e. the valve holding capacity of having restored aperture.
2. a kind of adjustable resistance single piece type ball valve according to claim 1, it is characterized in that: centered on the valve stem nut (4)
There is the radial flute profile end face of circular hole, tooth form is shorter closeer；Grooved metal gasket (6) lower end surface is non-porous identical radial flute profile end
Face, the two, which can be mutually embedded in, increases relative rotation resistance；The clamp (5) is Y shape, and Y shape or so two-arm can be by being stuck in valve rod
(3) enough intensity is provided at respective slot prevents grooved metal gasket (6) from moving down, and unidirectional barb is equipped at two-arm, can be prevented
Non- external force loosens, and removes when necessary convenient for drawing manually；Groove on the valve rod (3) is only opened in clamp (5) Y shape or so two
At arm, it can avoid grooved metal gasket (6) and the Caton that spanner (9) is slided up and down in valve rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820433654.7U CN208185501U (en) | 2018-03-29 | 2018-03-29 | A kind of adjustable resistance single piece type ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820433654.7U CN208185501U (en) | 2018-03-29 | 2018-03-29 | A kind of adjustable resistance single piece type ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208185501U true CN208185501U (en) | 2018-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820433654.7U Active CN208185501U (en) | 2018-03-29 | 2018-03-29 | A kind of adjustable resistance single piece type ball valve |
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| Country | Link |
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| CN (1) | CN208185501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319228A (en) * | 2018-03-29 | 2019-10-11 | 四川农业大学 | A kind of adjustable resistance single piece type ball valve |
-
2018
- 2018-03-29 CN CN201820433654.7U patent/CN208185501U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319228A (en) * | 2018-03-29 | 2019-10-11 | 四川农业大学 | A kind of adjustable resistance single piece type ball valve |
| CN110319228B (en) * | 2018-03-29 | 2024-04-19 | 四川农业大学 | Resistance-variable one-piece ball valve |
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