CN207906481U - A kind of gate valve with leak-proof protection device - Google Patents
A kind of gate valve with leak-proof protection device Download PDFInfo
- Publication number
- CN207906481U CN207906481U CN201820177047.9U CN201820177047U CN207906481U CN 207906481 U CN207906481 U CN 207906481U CN 201820177047 U CN201820177047 U CN 201820177047U CN 207906481 U CN207906481 U CN 207906481U
- Authority
- CN
- China
- Prior art keywords
- valve
- protective cover
- leak
- deck
- protection device
- 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.)
- Active
Links
Abstract
The utility model refers in particular to a kind of gate valve with leak-proof protection device; belong to technical field of valve manufacturing; including valve body, valve rod and valve plate; valve deck is screwed onto on valve body; valve rod connects valve plate and passes through valve deck, is arranged with protective cover and spring on the valve rod, the spring is between protective cover and valve plate; the inner wall of the valve deck is provided with a circle groove, and the protective cover is fastened with groove.Protective cover can prevent flow from directly impacting the port of valve deck in the utility model, and flow is isolated, and the pressure that valve deck bears flow be reduced, to improve leakproofness, even if can prevent from leaking if in the case where O-ring fails.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, refers in particular to a kind of gate valve with leak-proof protection device.
Background technology
Valve rod is turned, valve rod drives valve plate to move up and down, and completes to open and close, after unlatching, flow can enter valve deck
The space at place, since the long-term valve rod that turns is opened and closed, valve rod and the sealing ring of valve deck junction are easy to wear,
Leakproofness is caused to reduce, water flows out from the port of valve deck readily along valve rod, the phenomenon that leak occurs.
Invention content
The purpose of this utility model is to provide a kind of gate valve with leak-proof protection device, can improve leakproofness, prevent
Leak.
What the purpose of this utility model was realized in：A kind of gate valve with leak-proof protection device, including valve body, valve rod
And valve plate, valve deck are screwed onto on valve body, valve rod connect valve plate simultaneously pass through valve deck, wherein be arranged on the valve rod protective cover and
Spring, for the spring between protective cover and valve plate, spring is in compressive state, and it is recessed that the inner wall of the valve deck is provided with a circle
Slot, the protective cover are fastened with groove, and under the resilient support of spring, edge is inserted into groove protective cover, can be by valve deck
Port be isolated with flow, can not be along valve rod and valve deck junction even if can be very low if thering is water to ooze its water flow pressure of protective cover
Gap outflow.
A kind of gate valve with leak-proof protection device mentioned above, wherein the valve rod coordinates with protective cover transition, prevents
Protecting cover can move along valve rod under spring force effect, can also improve leakproofness, prevent water from leaking.
A kind of gate valve with leak-proof protection device mentioned above, wherein the junction of the protective cover and valve rod, on
Side and lower section are both provided with sealing ring, can further increase leakproofness.
A kind of gate valve with leak-proof protection device mentioned above, wherein the height at the protective cover edge is more than institute
State the depth of groove, the edge of protective cover is fully inserted into groove, and is contacted with the bottom of groove, reduce edge with it is recessed
Gap between slot leaks to flow and increases resistance.
A kind of gate valve with leak-proof protection device mentioned above, wherein the upper port of the valve deck is provided with pressure cap,
The junction of the valve rod and valve deck is provided with O-ring, can improve leakproofness.
A kind of gate valve with leak-proof protection device mentioned above, wherein the valve deck is provided with the valve body place of being spirally connected
Washer can improve leakproofness.
The utility model is prominent and beneficial compared with prior art to be had the technical effect that：Protective cover can prevent flow from directly rushing
The port for hitting valve deck, flow is isolated, and the pressure that valve deck bears flow is reduced, to improve leakproofness, even if in O-ring
In the case of failure, it can also prevent from leaking.
Description of the drawings
Fig. 1 is the valve plate closed state structural schematic diagram of the utility model；
Fig. 2 is the valve plate open state structural schematic diagram of the utility model；
In figure：10- valve bodies, 11- valve decks, 12- valve rods, 13- valve plates, 14- pressure caps, 15- handwheels, 16-O type circles, 17- pads
Circle, 18- protective covers, 19- grooves, 20- springs, 21- sealing rings.
Specific implementation mode
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings, referring to Fig. 1-2：One kind has
The gate valve of leak-proof protection device, including valve body 10, valve rod 12 and valve plate 13, valve deck 11 are screwed onto on valve body 10, the valve deck 11
10 place of being spirally connected of valve body is provided with washer 17, leakproofness can be improved, valve rod 12 connects valve plate 13 and passes through valve deck 11, valve rod 12
End set there is handwheel 15, the upper port of the valve deck 11 to be provided with pressure cap 14, the junction of the valve rod 12 and valve deck 11
It is provided with O-ring 16, leakproofness can be improved.Wherein, protective cover 18 and spring 20, the spring are arranged on the valve rod 12
20 between protective cover 18 and valve plate 13, and spring 20 is in compressive state, and the inner wall of the valve deck 11 is provided with a circle groove
19, the protective cover 18 is fastened with groove 19, and under the resilient support of spring 20, edge is inserted into groove 19 protective cover 18,
The port of valve deck 11 can be isolated with flow, it, can not be along valve even if can be very low if thering is water to ooze its water flow pressure of protective cover 18
Bar 12 and the gap of 11 junction of valve deck are flowed out, and prevent from leaking.The height at 18 edge of the protective cover is more than the groove 19
The edge of depth, protective cover 18 is fully inserted into groove 19, and is contacted with the bottom of groove 19, when valve plate 13 is opened
When, spring 20 is pressed further by, and spring 20 acts on the increase of the elastic force on protective cover 18, and the edge of protective cover 18 is further inserted
Enter in groove 19, and contacted with the bottom of groove 19, valve plate 13 is opened bigger, and spring 20 is bigger by compressed elastic force, is prevented
The extruding force that protecting cover 18 is subject to is also bigger, and protective cover 18 contacts closer with groove 19, effectively prevents the infiltration of flow, improves
The effect of leakproof.
The valve rod 12 coordinates with 18 transition of protective cover, and protective cover 18, can be along valve rod 12 under the effect of 20 elastic force of spring
It is mobile, leakproofness can be also improved, prevents water from leaking.
The junction of the protective cover 18 and valve rod 12, above and below be both provided with sealing ring 21, can further carry
High leakproofness.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
It encloses, therefore：The equivalence changes that all structures, shape, principle according to the utility model are done, should all be covered by the protection of the utility model
Within the scope of.
Claims (6)
1. a kind of gate valve with leak-proof protection device, including valve body (10), valve rod (12) and valve plate (13), valve deck (11) are spirally connected
On valve body (10), valve rod (12) connects valve plate (13) and passes through valve deck (11), it is characterised in that：It is arranged on the valve rod (12)
There are protective cover (18) and spring (20), the spring (20) to be located between protective cover (18) and valve plate (13), the valve deck (11)
Inner wall be provided with a circle groove (19), the protective cover (18) fastens with groove (19).
2. a kind of gate valve with leak-proof protection device according to claim 1, it is characterised in that：The valve rod (12) with
Protective cover (18) transition coordinates.
3. a kind of gate valve with leak-proof protection device according to claim 1 or 2, it is characterised in that：The protective cover
(18) with the junction of valve rod (12), above and below be both provided with sealing ring (21).
4. a kind of gate valve with leak-proof protection device according to claim 1 or 2, it is characterised in that：The protective cover
(18) height at edge is more than the depth of the groove (19).
5. a kind of gate valve with leak-proof protection device according to claim 1 or 2, it is characterised in that：The valve deck
(11) upper port is provided with pressure cap (14), and the valve rod (12) and the junction of valve deck (11) are provided with O-ring (16).
6. a kind of gate valve with leak-proof protection device according to claim 1 or 2, it is characterised in that：The valve deck
(11) valve body (10) place of being spirally connected is provided with washer (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820177047.9U CN207906481U (en) | 2018-02-01 | 2018-02-01 | A kind of gate valve with leak-proof protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820177047.9U CN207906481U (en) | 2018-02-01 | 2018-02-01 | A kind of gate valve with leak-proof protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207906481U true CN207906481U (en) | 2018-09-25 |
Family
ID=63562695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820177047.9U Active CN207906481U (en) | 2018-02-01 | 2018-02-01 | A kind of gate valve with leak-proof protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207906481U (en) |
-
2018
- 2018-02-01 CN CN201820177047.9U patent/CN207906481U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102494166A (en) | Overflowing protective valve | |
| CN207906481U (en) | A kind of gate valve with leak-proof protection device | |
| CN205841844U (en) | A kind of manual flanged ball valve | |
| CN203067919U (en) | Reducing valve | |
| CN209587310U (en) | A kind of angular runner diaphragm type water conservancy valve | |
| CN203892634U (en) | Spherical check valve | |
| CN205896234U (en) | Bivalve stopper control valve | |
| CN204140970U (en) | Cast iron screw down nonreturn valve | |
| CN204756032U (en) | Butt clamp butterfly check valve | |
| CN204511863U (en) | A kind of Novel air exchanging plug | |
| CN210687778U (en) | Anti-leakage drainer | |
| CN202638633U (en) | Explosion-proof spherical head | |
| CN203516871U (en) | Membrane and membrane sealing type safety valve using same | |
| CN202302034U (en) | Internal-pressure self-sealing valve structure | |
| CN207034301U (en) | A kind of sewage pump pressure valve | |
| CN206274078U (en) | A kind of idle call cutoff valve with high sealing performance | |
| CN201434130Y (en) | Valve structure of gate valve | |
| CN205715877U (en) | A kind of tap water cut-off self closing device | |
| CN211288875U (en) | Adjustable pressure reducing valve | |
| CN202812265U (en) | Spreading type spherical surface gate valve | |
| CN207661158U (en) | Band parallel construction is without deflector hole flat gate valve | |
| CN204459355U (en) | Leakage-proof type outlet valve | |
| CN203571138U (en) | Mechanical water-stoppage self-closing leakage-proof valve | |
| CN204061943U (en) | A kind of leakproof hot and cold water Two purpose valve | |
| CN212718210U (en) | Check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |