CN209705281U - A kind of selector valve sealing structure - Google Patents
A kind of selector valve sealing structure Download PDFInfo
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- CN209705281U CN209705281U CN201920272456.1U CN201920272456U CN209705281U CN 209705281 U CN209705281 U CN 209705281U CN 201920272456 U CN201920272456 U CN 201920272456U CN 209705281 U CN209705281 U CN 209705281U
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- valve
- sealing
- bulge loop
- sealing ring
- valve body
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Abstract
The utility model relates to a kind of selector valve sealing structures.Including valve body, valve deck and the setting intracorporal piston component of valve, valve body is equipped with medium entrance and media outlet, piston component includes valve rod, spool and sealing valve head, valve deck is sleeved on valve rod and connect with valve body screw thread, valve rod and sealing valve head are connected as one by spool, the upper surface of medium entrance is equipped with a circle bulge loop, the lower end surface for sealing valve head is equipped with annular groove, it is equipped with a circle sealing ring in groove, bulge loop can offset realization sealing with the sealing ring of sealing valve head when piston component downlink.The utility model is by being arranged sealing ring in the lower end surface of sealing valve head, and bulge loop is set on medium entrance upper surface, when piston component downlink, sealing ring and bulge loop, which offset, realizes sealing, the sealing ring of this structure is not easy to be rushed by high-pressure medium de-, and sealing effect is more preferable, realizes the zero leakage of medium, can reach higher sealed pressure and open and close the requirement of number.
Description
Technical field
The utility model relates to valve fields, and in particular to a kind of selector valve sealing structure.
Background technique
Selector valve is the valve disconnected, logical for fire-fighting fire extinguishing gas long-distance sand transport.In the prior art, selector valve includes
Valve body 1, the valve deck 2 being threadedly coupled with valve body 1 and the piston component being arranged in valve body 1, piston component include valve rod 3 and valve
First 4, sealing when sealing ring 5 is closed for valve is wherein cased on 4 side of valve head, as shown in Figure 1.This structure makes for a long time
With rear, under the action of pressure medium, the sealing ring on valve head is easy to be rushed by medium de-, and sealed pressure and opening and closing number is not achieved
Requirement, so as to cause sealing failure, there is the problem of dielectric leakage.
Utility model content
In order to overcome the shortcomings of background technique, the utility model provides a kind of selector valve sealing structure.
The technical scheme adopted by the utility model is a kind of selector valve sealing structure, including valve body, valve deck and setting
The intracorporal piston component of valve, the valve body are equipped with medium entrance and media outlet, and the piston component includes valve rod, spool
With sealing valve head, the valve deck is sleeved on valve rod and connect with valve body screw thread, and the valve rod and sealing valve head pass through valve
Core is connected as one, and the upper surface of medium entrance is equipped with a circle bulge loop, and it is recessed that the lower end surface of the sealing valve head is equipped with annular
Slot, is equipped with a circle sealing ring in the groove, and bulge loop can offset with the sealing ring of sealing valve head when the piston component downlink
Realize sealing.
Further, the upper surface of the medium entrance is equipped with a circle concave surface, and the bulge loop is arranged on concave surface.
Further, the concave surface medial surface is the inclined-plane with gradient, the inclined-plane and medium entrance upper surface shape
At angle be 100-150 °, its bottom extension offsets with above-mentioned inclined-plane when the sealing valve head downlink.
Further, the groove is dovetail groove or dovetail groove.
Further, the upper and lower ends of the valve deck and valve body junction are equipped with " O " type sealing ring.
Further, the valve body upper end is integrally formed with first annular step, first annular step and valve body upper surface
Between form a circle card slot, the valve deck is equipped with the second ring-shaped step for being caught in card slot.
Further, excessive using circular arc at the top of the bulge loop.
The beneficial effects of the utility model are: due to taking above-mentioned technical proposal, the utility model passes through in sealing valve head
Lower end surface sealing ring is set, and bulge loop is set on medium entrance upper surface, when piston component downlink, sealing ring and bulge loop
Offset realization sealing, and the sealing ring of this structure, which is not easy to be rushed by high-pressure medium, to be taken off, and sealing effect is more preferable, realizes that the zero of medium lets out
Leakage can reach higher sealed pressure and open and close the requirement of number.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In Fig. 1:
1, valve body；2, valve deck；3, valve rod；4, valve head；5, sealing ring.
Fig. 2 is the structural schematic diagram of the utility model
Fig. 3 is enlarged drawing at A in Fig. 2.
Fig. 4 is enlarged drawing at B in Fig. 2.
In Fig. 2-4:
1, valve body；2, valve deck；3, medium entrance；4, media outlet；5, valve rod；6, spool；7, valve head is sealed；8, bulge loop；
9, groove；10, sealing ring；11, concave surface；12, inclined-plane；13, " O " type sealing ring；14, first annular step；15, card slot；16,
Second ring step.
Specific embodiment
To keep the purposes, technical schemes and advantages of the utility model implementation clearer, below in conjunction with the utility model
Attached drawing in embodiment, is further described in more detail the technical scheme in the embodiment of the utility model.In the accompanying drawings, from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Described reality
Applying example is the utility model a part of the embodiment, instead of all the embodiments.Below with reference to the embodiment of attached drawing description
It is exemplary, it is intended to for explaining the utility model, and should not be understood as limiting the present invention.It is practical new based on this
Embodiment in type, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, fall within the protection scope of the utility model.The embodiments of the present invention are described in detail with reference to the accompanying drawing.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical
The limitation of novel protected range.
The utility model is described in further details with reference to the accompanying drawing.
As shown in Figures 2 to 4, a kind of selector valve sealing structure, including the work in valve body 1, valve deck 2 and setting valve body 1
Plug assembly, the valve body 1 are equipped with medium entrance 3 and media outlet 4, and the piston component includes valve rod 5, spool 6 and close
Valve head 7 is sealed, the valve deck 2 is sleeved on valve rod 5 and is threadedly coupled with valve body 1, and the valve rod 5 and sealing valve head 7 pass through
Spool 6 is connected as one, and the upper surface of medium entrance 3 is equipped with a circle bulge loop 8, and the lower end surface of the sealing valve head 7 is equipped with
Annular groove 9, is equipped with a circle sealing ring 10 in the groove 9, and bulge loop 8 can be with sealing valve head 7 when the piston component downlink
Sealing ring offset realization sealing.
The utility model sealing ring 10 is being arranged in the annular groove for sealing the lower end surface of valve head, and in medium entrance
One circle sealing ring of setting on upper surface, when piston component downlink, sealing ring and bulge loop offset and realize sealing, this structure is not
Only simple, sealing effect is more preferable, and sealing ring is not easily to fall off, is able to achieve higher pressure and more rise closes number.
Wherein, the upper surface of medium entrance 3 is equipped with a circle concave surface 11, and the bulge loop is arranged on concave surface 11；Described
11 medial surface of concave surface is the inclined-plane 12 with gradient, and the angle that the inclined-plane 12 is formed with 3 upper surface of medium entrance is 100-
150 °, its bottom extension offsets with above-mentioned inclined-plane 12 when sealing 7 downlink of valve head.This structure can limit sealing valve head downlink
Maximum distance, prevent bulge loop excessive compression sealing ring, effective protection sealing ring improves the service life of valve, seals simultaneously
The edge of valve head offsets with inclined-plane, so that forming secondary seal between sealing valve head and inclined-plane, further improves valve
Sealing effect.
The groove 9 is dovetail groove or dovetail groove.The setting of dovetail groove or dovetail groove can be good at fixed seal ring,
The further stability for improving sealing ring prevents sealing ring from being rushed by high-pressure medium de-,
In the present invention, the valve deck 2 and the upper and lower ends of 1 junction of valve body are equipped with " O " type sealing ring 13；Institute
1 upper end of valve body is stated integrally formed with first annular step 14, forms a circle card between 1 upper surface of first annular step 14 and valve body
Slot 15, the valve deck 2 are equipped with the second ring-shaped step 16 being caught in card slot 2.Due to being using spiral shell between valve deck and valve body
Line connection, sealing performance is poor, when selector valve is toppled over or tilt fixation, the phenomenon that being easy to appear leakage, In
It is arranged in the upper and lower ends of valve deck and valve body junction " O " type sealing ring can be improved sealing performance, meanwhile, in valve body and valve deck
Upper setting first annular step and the second ring-shaped step further increase its sealing performance.
Preferably, excessive using circular arc at the top of the bulge loop 8.It is excessive using circular arc at the top of bulge loop, bulge loop can be prevented
Puncture sealing ring, while the excessive structure of circular arc can sufficiently squeeze sealing ring, increase sealing contact surface, so as to improve it
Sealing performance.
The utility model is arranged on medium entrance upper surface by the way that sealing ring is arranged in the lower end surface of sealing valve head
Bulge loop, when piston component downlink, sealing ring and bulge loop offset realization sealing, and the sealing ring of this structure is not easy to be rushed by high-pressure medium
It is de-, and sealing effect is more preferable, realizes the zero leakage of medium, can reach higher sealed pressure and open and close the requirement of number.
Every technical staff's notice: although the utility model is described according to above-mentioned specific embodiment, this
The invention thought of utility model is not limited to that utility model, and any repacking with inventive concept will all be included in this specially
In sharp scope of patent protection.
Claims (7)
1. a kind of selector valve sealing structure, including valve body, valve deck and the setting intracorporal piston component of valve, the valve body are equipped with
Medium entrance and media outlet, it is characterised in that: the piston component includes valve rod, spool and sealing valve head, the valve
Lid be sleeved on valve rod and connect with valve body screw thread, the valve rod and seal valve head be connected as one by spool, medium into
The upper surface of mouth is equipped with a circle bulge loop, and the lower end surface of the sealing valve head is equipped with annular groove, and the groove is interior to be equipped with one
Sealing ring is enclosed, bulge loop can offset realization sealing with the sealing ring of sealing valve head when the piston component downlink.
2. a kind of selector valve sealing structure according to claim 1, it is characterised in that: on the upper surface of the medium entrance
Equipped with a circle concave surface, the bulge loop is arranged on concave surface.
3. a kind of selector valve sealing structure according to claim 2, it is characterised in that: the concave surface medial surface be with
The inclined-plane of gradient, the angle that the inclined-plane and medium entrance upper surface are formed is 100-150 °, when the sealing valve head downlink its
Bottom extension offsets with above-mentioned inclined-plane.
4. a kind of selector valve sealing structure according to claim 1, it is characterised in that: the groove is dovetail groove or swallow
Stern notch.
5. a kind of selector valve sealing structure according to claim 1-4, it is characterised in that: the valve deck and valve body
The upper and lower ends of junction are equipped with " O " type sealing ring.
6. a kind of selector valve sealing structure according to claim 5, it is characterised in that: the valve body upper end integrally formed with
First annular step, forms a circle card slot between first annular step and valve body upper surface, the valve deck is equipped with and is caught in card
The second ring-shaped step in slot.
7. a kind of selector valve sealing structure according to claim 1, it is characterised in that: use circular arc at the top of the bulge loop
Excessively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920272456.1U CN209705281U (en) | 2019-03-05 | 2019-03-05 | A kind of selector valve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920272456.1U CN209705281U (en) | 2019-03-05 | 2019-03-05 | A kind of selector valve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209705281U true CN209705281U (en) | 2019-11-29 |
Family
ID=68645085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920272456.1U Active CN209705281U (en) | 2019-03-05 | 2019-03-05 | A kind of selector valve sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209705281U (en) |
-
2019
- 2019-03-05 CN CN201920272456.1U patent/CN209705281U/en active Active
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