CN204900914U - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN204900914U CN204900914U CN201520538550.9U CN201520538550U CN204900914U CN 204900914 U CN204900914 U CN 204900914U CN 201520538550 U CN201520538550 U CN 201520538550U CN 204900914 U CN204900914 U CN 204900914U
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- valve
- valve body
- valve seat
- ball valve
- disk seat
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Abstract
The utility model discloses a shock attenuation ball valve. The utility model provides a: a ball valve, includes the valve body, be equipped with in the valve body valve rod and with valve rod linkage complex case spheroid, the valve rod linkage is connected with manual executor, the valve body admission passage and outflow passageway department all be provided with with the inseparable disk seat of laminating of case spheroid, the disk seat is the L type, the disk seat is provided with in the valve body and settles the hole including the grafting portion inside with stretching into the disk seat of conflict portion that connects gradually, settles downthehole be provided with and the conflict portion of disk seat supports and establishes the elastic component of connection, is provided with the sealing washer between grafting portion and the valve body, is provided with the recess with case spheroidal junction on the disk seat, is provided with the soft seal piece in the recess. The utility model discloses a soft seal piece, elastic component and sealing washer in the ball valve can carry out the shock attenuation to disk seat and the spheroidal collision of case, can effectively avoid ball valve to bump in having the operational environment of vibrations between case spheroid and the disk seat and make the leakproofness descend.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of ball valve.
Background technique
At present, ball valve has been widely used in various pipeline, and ball valve includes hand actuator and valve body, the centre of sphere being provided with valve rod in valve body and being linked with valve rod, hand actuator and valve rod are connected, and are provided with the flow pass of inlet passage and the medium outflow entered for medium in valve body.But ball valves more of the prior art, it is generally arranged on some industrial lands, and working environment has oscillation phenomenon frequently.Owing to there is compatible degree closely between the spheroid in ball valve and valve seat, when ball valve works for a long time under the environment vibrated, easily slight rigid collision is there is between its spheroid and valve seat, if things go on like this, rigid collision will be worn and torn the sealing surface of spheroid and valve seat, cause the sealability of ball valve to decline, easily leak, therefore still there is the space of improvement.
Summary of the invention
For the deficiency that prior art exists, main purpose of the present utility model is to provide a kind of ball valve with shock-damping structure, avoids ball valve and collides between spool spheroid and valve seat in the working environment having vibrations and sealing is declined.
For achieving the above object, the utility model provides following technological scheme, a kind of ball valve, comprise valve body, the spool spheroid being provided with valve rod in described valve body and being linked with valve rod, described valve rod has been connected hand actuator, the flow pass of inlet passage and the medium outflow entered for medium is provided with in described valve body, described valve body is all provided with the valve seat fitted tightly with described spool spheroid at inlet passage and flow pass place, described valve seat is L-type, described valve seat comprises the contact part connected successively and the cutting graftage part stretching into valve seat inside, placement hole is provided with in described valve body, be provided with in described placement hole with the contact part of described valve seat to establishing the elastic component be connected, seal ring is provided with between described cutting graftage part and valve body, described valve seat is provided with groove with the joint of spool spheroid, soft seal is provided with in described groove.
Preferably, wedge is provided with between described elastic component and valve seat.
Preferably, be provided with spring in described groove, the two ends of described spring connect respectively at soft seal and groove inner wall.
Preferably, the quantity of described seal ring is two.
Preferably, described valve body is being provided with filler with valve rod joint.
Preferably, the top of described filler is provided with filler pressing sleeve and hold-down grid.
Preferably, described seal ring and soft seal are made by by expanded PTFE.
Preferably, described elastic component is spring or metal clips.
The utility model has the following advantages relative to prior art tool, first ball valve is directly cushioned by the collision potential energy of soft seal to spool spheroid and valve seat, then the elastic component being positioned at valve body absorbs the power that valve seat is subject to again, again valve seat is slowed down, reduce collision strength, be finally between cutting graftage part and valve seat seal ring third time damping is carried out to valve seat, therefore, even if valve seat and spool spheroid generation hard collision, ball valve of the present utility model can divide and carries out bumper and absorbing shock to this collision potential energy 3 times, effectively prevent between spool spheroid and valve seat and damage because of colliding.
Accompanying drawing explanation
Fig. 1 is the sectional view of ball valve of the present utility model;
Fig. 2 is A portion enlarged diagram in Fig. 1;
In figure: 1, valve body; 2, valve gap; 3, valve rod; 4, valve seat; 5, runner; 6, spool spheroid; 7, contact part; 8, cutting graftage part; 9, placement hole; 10, elastic component; 11, seal ring; 12, groove; 13, soft seal; 14, wedge; 15, spring; 16, filler; 17, filler pressing sleeve; 18, hold-down grid.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As illustrated in figs. 1 and 2, a kind of ball valve, comprise valve body 1, valve body 1 bottom is connected with valve gap 2, the spool spheroid 6 being provided with valve rod 3 in valve body 1 and being linked with valve rod 3, valve rod 3 has been connected hand actuator, and be provided with the flow pass that the inlet passage that enters for medium and medium flow out in valve body 1, inlet passage and flow pass form medium runner 5 jointly.Valve body 1 is all provided with the valve seat 4 fitted tightly with spool spheroid 6 at inlet passage and flow pass place, spool spheroid 6 and valve seat 4 directly fit tightly to be formed and firmly seal, valve seat 4 is in L-type, valve seat 4 comprises the contact part 7 connected successively and the cutting graftage part 8 stretching into valve seat 4 inside, placement hole 9 is provided with in valve body 1, be provided with in placement hole 9 with the contact part of valve seat 4 to establishing the elastic component 10 be connected, seal ring 11 is provided with between cutting graftage part and valve body 1, valve seat 4 is provided with groove 12 with the joint of spool spheroid 6, in groove 12, is provided with soft seal 13.
By adopting technique scheme, be through with runner 5 in valve body 1, flowing medium until entered flow pass, realized the keying of runner 5, and spool spheroid 6 is linked by inlet passage by spool spheroid 6 by valve rod 3; Valve body 1 is equipped with valve seat 4 at intake tunnel and exhalant canal place, valve seat 4 comprises and is positioned at hard valve seat 4 on valve body 1 and can conflicts the soft seal 13 be connected with spool spheroid 6, by the setting of this soft seal 13, when this valve body 1 is under the working environment of vibration, slight impact between movable valve seat 4 and spool spheroid 6 is cushioned by the elastic potential energy of elastic component 10 and transforms, avoid spool spheroid 6 and valve seat 4 rigid collision and damage or produce leakage, effectively improve the service behaviour of this valve body 1.In addition, because be provided with seal ring 11 between cutting graftage part and valve body 1, seal ring 11 can be cushioned and damping by the stroke of the elastic potential energy of self to valve seat 4, the potential energy of spool spheroid 6 with valve seat 4 rigid collision can be absorbed equally.So first the novel ball valve of this reality is directly cushioned by the collision potential energy of soft seal 13 pairs of spool spheroids 6 and valve seat 4, then the elastic component 10 being positioned at valve body 1 absorbs the power that valve seat 4 is subject to again, again valve seat 4 is slowed down, reduce collision strength, be finally between cutting graftage part and valve seat 4 seal ring 11 third time damping is carried out to valve seat 4, therefore, even if there is hard collision in valve seat 4 and spool spheroid 6, ball valve of the present utility model can divide and carries out bumper and absorbing shock to this collision potential energy 3 times, effectively prevent between spool spheroid 6 and valve seat 4 and damage because of colliding.
Further; wedge 14 is provided with between elastic component 10 and valve seat 4; with reference to Fig. 2; wedge 14 can effectively be protected elastic component 10; wedge 14 provides a flexible passage for elastic component 10; can prevent again valve seat 4 from spring is carried out excess compression simultaneously, just exempt from spring and be subject to excessive power meeting torsional deformation or inefficacy.
In addition, spring 15 is provided with in groove 12, the two ends of spring 15 connect respectively at soft seal 13 and groove 12 inwall, with reference to Fig. 2, this spring 15 can for further by soft seal 13 for ball valve provides damping effect, this spring 15 also has the effect preventing soft seal 13 from coming off in the groove 12 valve seat 4 simultaneously, and when the hard contact spring 15 of valve seat 4 and spool spheroid 6 is compressed, this spring 15 can increase an elastic strain power to soft seal 13, soft seal 13 is made to contact tightr with valve body 1 with spool spheroid 6, enhance the sealing of ball valve.
The quantity of seal ring 11 is two, such setting just can provide appropriate cushion effect and sealing for ball valve, when the quantity setting of seal ring 11 is greater than two, frictional force between valve seat 4 and valve body 1 is excessive, ball valve can be caused to open difficulty, when the quantity of seal ring 11 is less than two, the sealing between valve seat 4 and valve body 1 can be arrived and be ensured.
Wherein, valve body 1 is being provided with filler 16 with valve rod 3 joint, the top of filler is provided with filler pressing sleeve 17 and hold-down grid 18, filler 16 can effectively prevent the medium in valve from outflowing, filler pressing sleeve 17 and cooperatively interacting of hold-down grid 18 can extend the working life of filler 16, have just exempted from filler 16 premature failure.Filler 16 can be teflon, graphite and asbestos packing etc., and the present embodiment is not construed as limiting.
Seal ring 11 and soft seal 13 are made by by expanded PTFE, because expanded PTFE has good chemical proof, abrasion resistant qualities and extremely strong high temperature resistant, low temperature ability, there is extremely strong anti-corrosion capacity, stable work in work, and there is good mechanical tenacity and spring-back force, the sealability of the product greatly improved and quality.
Elastic component 10 is spring or metal clips, and metal clips herein can be U-shaped metal steel disc, and spring can be stage clip etc., and spring or metal clips can both be offered help for the bumper and absorbing shock of valve seat 4, have extraordinary effect.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. a ball valve, comprise valve body, the spool spheroid being provided with valve rod in described valve body and being linked with valve rod, described valve rod has been connected hand actuator, the flow pass of inlet passage and the medium outflow entered for medium is provided with in described valve body, described valve body is all provided with the valve seat fitted tightly with described spool spheroid at inlet passage and flow pass place, it is characterized in that: described valve seat is L-type, described valve seat comprises the contact part connected successively and the cutting graftage part stretching into valve seat inside, placement hole is provided with in described valve body, be provided with in described placement hole with the contact part of described valve seat to establishing the elastic component be connected, seal ring is provided with between described cutting graftage part and valve body, described valve seat is provided with groove with the joint of spool spheroid, soft seal is provided with in described groove.
2. a kind of ball valve according to claim 1, is characterized in that: be provided with wedge between described elastic component and valve seat.
3. a kind of ball valve according to claim 2, is characterized in that: be provided with spring in described groove, and the two ends of described spring connect respectively at soft seal and groove inner wall.
4. a kind of ball valve according to claim 3, is characterized in that: the quantity of described seal ring is two.
5. a kind of ball valve according to claim 1 or 4, is characterized in that: described valve body is being provided with filler with valve rod joint.
6. a kind of ball valve according to claim 5, is characterized in that: the top of described filler is provided with filler pressing sleeve and hold-down grid.
7. a kind of ball valve according to claim 1, is characterized in that: described seal ring and soft seal are made by expanded PTFE.
8. a kind of ball valve according to claim 7, is characterized in that: described elastic component is spring or metal clips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538550.9U CN204900914U (en) | 2015-07-23 | 2015-07-23 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538550.9U CN204900914U (en) | 2015-07-23 | 2015-07-23 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900914U true CN204900914U (en) | 2015-12-23 |
Family
ID=54923091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520538550.9U Active CN204900914U (en) | 2015-07-23 | 2015-07-23 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020430A (en) * | 2015-07-23 | 2015-11-04 | 苏州科迪流体控制设备有限公司 | Ball valve |
-
2015
- 2015-07-23 CN CN201520538550.9U patent/CN204900914U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020430A (en) * | 2015-07-23 | 2015-11-04 | 苏州科迪流体控制设备有限公司 | Ball valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |