CN206626192U - A kind of gate valve - Google Patents
A kind of gate valve Download PDFInfo
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- CN206626192U CN206626192U CN201720306812.8U CN201720306812U CN206626192U CN 206626192 U CN206626192 U CN 206626192U CN 201720306812 U CN201720306812 U CN 201720306812U CN 206626192 U CN206626192 U CN 206626192U
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Abstract
The utility model provides a kind of gate valve, belongs to field of mechanical technique.It solves the problems such as existing Gate-valve sealing is bad.This gate valve includes valve body, valve rod is provided with valve body, valve body upper end is connected with bonnet, connecting portion is provided with valve body, connecting portion is connected with adapter, adapter is outer to be arranged with the deduction cap fixed with connecting portion, convex shoulder is provided with the lateral surface of adapter, bulge loop is provided with the medial surface of deduction cap outer end, convex shoulder is resisted against on bulge loop, set on the outer face of connecting portion fluted, sealing ring one is installed in groove, the interior butting section of sealing ring one is located in groove, the outer face of the outer butting section protrusion connecting portion of sealing ring one, and sealed with the inner face of adapter against formation, two annular grooves are provided with the lateral surface of valve rod, sealing ring two is mounted in two annular grooves, protrude the lateral surface of valve rod in the outside portion of sealing ring two, the lateral surface of sealing ring two abuts in bonnet inner surface and forms sealing.This gate valve has the advantages that good airproof performance.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of valve, more particularly to a kind of gate valve.
Background technology
Standard GB/T21465-2008《Valve term》It is middle to be defined as valve：For medium in control pipeline, have
The totality of the engineering goods of movable agency.Valve can be divided into gate valve, stop valve, choke valve, ball valve, butterfly valve, cock by structure
Valve and check-valves etc., gate valve are very common valves, are defined as gate valve in standard：Opening and closing element (flashboard) is driven by valve rod,
Make the valve of straight line elevating movement along valve seat (sealing surface).
Chinese patent literature data, which discloses, proposes a kind of pipeline gate valve [application number：CN200920142179.9；Bulletin
Number：CN201363435Y], including valve body, valve rod, valve element, handwheel and pipe joint, it is connected to pipe at the both ends of valve body and connects
Head, by the lifting of valve rod and the rotational band movable valve plug of handwheel with the on or off of control gate valve, pipe joint is a hollow cylinder,
Ring shape connection boss is provided with the outside of the junction of pipe joint and valve body, pipe joint is screwed onto entering for valve body by nut
On water and water out adapter, sealing ring is provided between the water inlet of pipe joint and valve body and water out adapter.
Gate valve can be connected in above-mentioned gate valve by pipe joint in pipeline, but sealing ring is all installed in recessed
In groove, so easily cause sealing ring and can not be formed with pipe joint and closely recline, easily influence between pipe joint and valve body
Sealing.
The content of the invention
The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of gate valve, the skill of solution
Art problem is how to make the good airproof performance of gate valve.
The purpose of this utility model can be realized by following technical proposal：
A kind of gate valve, including the valve body with inner chamber, flashboard, the upper end of the flashboard are provided with the inner chamber of the valve body
The valve rod being axially fixed in valve body is threaded with, the threaded upper ends of the valve body are connected with bonnet, the upper end of the valve rod
Stretch out the upper end of bonnet and be fixedly connected with handwheel, the connecting portion of protrusion, the connection are provided with the lateral surface of the valve body
There is the water passage connected with body cavity, the connecting portion is connected with adapter, is arranged with deduction cap outside the adapter, institute in portion
The inner for stating deduction cap is sleeved on connecting portion and forms threaded connection, and the convex shoulder of protrusion is provided with the lateral surface of the adapter,
Be provided with the bulge loop of protrusion on the medial surface of the deduction cap outer end, the convex shoulder between bulge loop and connecting portion and convex shoulder against
On bulge loop, groove in a ring is provided with the outer face of the connecting portion, sealing ring one is installed in the groove, it is special
Sign is that the sealing ring one includes interior butting section and outer butting section, and the interior butting section is located in groove, the outer butting section
The outer face of connecting portion is protruded, and outer butting section and the inner face of adapter seal against formation, edge on the lateral surface of the valve rod
It is axially arranged to have two annular grooves, sealing ring two, the outside portion of sealing ring two protrusion are mounted in two annular grooves
The lateral surface of valve rod, the lateral surface of the sealing ring two abut on bonnet inner surface and form sealing.
Hand wheel rotating band ovable valve stem is rotated so as to drive upper motion under flashboard.In order to realize the rotation of valve rod, valve rod and valve
Be generally gap between lid to coordinate, during hand wheel rotating valve rod can produce and rock, when the sealing of valve rod and bonnet not
When good, gap location of the water capacity easily between valve rod and bonnet in valve body leaks.Two rings are set up in the axle of valve rod
Shape groove is simultaneously respectively mounted sealing ring two in each annular groove, can improve the sealing between valve rod and bonnet.Sealing ring two
Outside portion protrusion valve rod lateral surface can ensure between sealing ring two and the inner surface of bonnet formed closely against, make valve rod with
Good sealing effect between bonnet, so that the good airproof performance of gate valve.
Deduction cap is socketed in adapter, and the inner of deduction cap is sleeved on connecting portion and tightened, at this moment sealing ring one it is outer against
Portion is resisted against on the inner face of adapter, because the outer face of connecting portion is protruded in the outer butting section of sealing ring one, is tightened in deduction cap
During, sealing ring one can be such that the interior butting section of sealing ring one is resisted against on the bottom surface and side of groove with fully deformed, and
Make the outer butting section of sealing ring one closely against on the inner face of adapter, so that adapter and the good sealing effect of connecting portion,
Make the good airproof performance of gate valve.
In above-mentioned gate valve, the lower end of the bonnet is inserted into valve body and forms threaded connection, the bonnet lower end
Lateral surface on be provided with shoulder block in a ring, the lower end of the bonnet is set with sealing gasket in a ring, the sealing gasket position
Between shoulder block and valve body, the upper surface and lower surface of the sealing gasket are plane, and the upper surface of the sealing gasket and gear
The lower surface of shoulder reclines to form sealing, and the lower surface of the sealing gasket and the upper surface of valve body recline to form sealing, the sealing
The medial surface of pad reclines to form sealing with the lateral surface of bonnet lower end.
The upper surface of three faces of the sealing gasket lateral surface with bonnet, the lower surface of shoulder block and valve body respectively is closely against shape
Into sealing, make the good airproof performance between bonnet and valve body, so that the good airproof performance of gate valve.
In above-mentioned gate valve, the circular in cross-section of the sealing ring one.So sealing ring one can be made to be leaned in adapter
During nearly connecting portion because lifting surface area is small and by larger pressure so that sealing ring one can produce larger change
Shape, make interior butting section and the bottom surface of groove and side and the outer butting section of sealing ring one and the inner face of adapter of sealing ring one
Closely recline.
In above-mentioned gate valve, the baffle ring in a ring of protrusion, the gear are provided with the inner medial surface of the adapter
Ring convex go out the side wall of water passage.
When adapter is connected to water inlet end, baffle ring can reduce impact of the current to sealing ring one, so that the sealing of gate valve
Property is good.
In above-mentioned gate valve, the adapter is made up of PPR materials, and the valve body is made up of copper or iron material, described
The water inlet end of valve body and water side are respectively provided with connecting portion.
The water inlet end of valve body and water side are respectively provided with connecting portion, and are connected on connecting portion by deduction cap by PPR material systems
Into adapter, so by adapter gate valve can be just connected in PPR pipe pipeline, facilitate the connection of gate valve.
Compared with prior art, the utility model has advantages below：
Groove is set on connecting portion, fixed seal ring one in groove, the outer butting section protrusion connecting portion of sealing ring one
Outer face, while two annular grooves are set on valve rod, are respectively provided with sealing ring two, the outside of sealing ring two in each annular groove
The lateral surface of valve rod is protruded in portion, so that the outer butting section of sealing ring one and the inner face of adapter seal closely against formation, makes
The lateral surface of sealing ring two and the inner surface of bonnet make the good airproof performance of gate valve closely against sealing is formed.In bonnet and valve body
Upper setting sealing gasket, by the circular in cross-section of sealing ring one, make the good airproof performance of gate valve.Baffle ring is set in adapter, reduced
Impact of the current to sealing ring one, makes Gate-valve sealing good.
Brief description of the drawings
Fig. 1 is the sectional view of this gate valve.
In figure, 1, valve body；1a, connecting portion；1a1, water passage；1a2, groove；1b, water inlet end；1c, water side；2nd, lock
Plate；3rd, valve rod；3a, annular groove；4th, bonnet；4a, shoulder block；5th, handwheel；6th, take over；6a, convex shoulder；6b, baffle ring；7th, deduction cap；It is 7a, convex
Ring；8th, sealing ring one；8a, interior butting section；8b, outer butting section；9th, sealing ring two；10th, sealing gasket.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
Embodiment one
As shown in figure 1, a kind of gate valve, including the valve body 1 with inner chamber, there is water inlet end 1b and water side 1c on valve body 1,
The intake tunnel connected with the inner chamber of valve body 1 is provided with water inlet end 1b, is provided with the 1c of water side and goes out with what the inner chamber of valve body 1 connected
Aquaporin.Flashboard 2 is provided with the inner chamber of valve body 1, the threaded upper ends of flashboard 2 are connected with the valve rod being axially fixed on valve body 1
3, i.e. the lower end of valve rod 3, which is inserted into flashboard 2, forms threaded connection.The threaded upper ends of valve body 1 are connected with bonnet 4, valve rod 3 it is upper
The upper end that bonnet 4 is stretched out at end is fixedly connected with handwheel 5, and when valve rod 3 rotates, flashboard 2 can move up and down on valve rod 3.When
When flashboard 2 and the cavity wall of the inner chamber of valve body 1 recline, flashboard 2 blocks intake tunnel and exhalant canal, and gate valve is closed；
When flashboard 2 does not recline with the cavity wall of the inner chamber of valve body 1, intake tunnel connects with exhalant canal, and gate valve is in open mode.
The connecting portion 1a, connecting portion 1a of the protrusion lateral surface of valve body 1 are provided with the water inlet end 1b and water side 1c of valve body 1
It is upper that there is the water passage 1a1 connected with the inner chamber of valve body 1.Connecting portion 1a is connected with adapter 6, and deduction cap 7 is arranged with outside adapter 6, detains
The inner of cap 7 is sleeved on connecting portion 1a and forms threaded connection.The convex shoulder 6a of protrusion is provided with the lateral surface of adapter 6, is detained
The bulge loop 7a of protrusion is provided with the medial surface of the outer end of cap 7, convex shoulder 6a is between bulge loop 7a and connecting portion 1a and convex shoulder 6a is supported
Lean against on bulge loop 7a.Groove 1a2 in a ring is provided with connecting portion 1a outer face, sealing ring one is fixed with groove 1a2
8, sealing ring 1 can be the O-ring seal of its circular in cross-section.Sealing ring 1 includes interior butting section 8a and outer butting section
8b, the interior butting section 8a of sealing ring 1 are located in groove 1a2, the outer butting section 8b protrusion connecting portions 1a of sealing ring 1 outer end
Face, the outer butting section 8b of sealing ring 1 seal with the inner face of adapter 6 against formation.It is provided with the inner medial surface of adapter 6
The baffle ring 6b in a ring of protrusion, baffle ring 6b protrusion water passage 1a1 side wall.
The retainer ring in a ring of protrusion is provided with the lateral surface of the upper end of valve rod 3, is provided with the inner surface of bonnet 4 solid
Fixed projection, the lower surface of retainer ring is resisted against on fixed lobe.The upper end of bonnet 4 is connected with pressure cap, and pressure cap is sleeved on bonnet 4
And threaded connection is formed, the pressure ring of protrusion is set on the medial surface of pressure cap upper end, is provided between pressure cap and valve rod 3 by plastics system
Into packing ring, the upper surface of packing ring is resisted against on pressure ring, and the lower surface of packing ring is resisted against on the upper surface of retainer ring.Packing ring is set
Pressure cap and the excessive wear of valve rod 3 can be prevented by the contact between pressure cap and valve rod 3 by putting.Along valve rod 3 on the lateral surface of retainer ring
It is axially arranged have sealing ring 29 is mounted in two annular grooves 3a, two annular groove 3a, the outside portion of sealing ring 29 protrusion
The lateral surface of retainer ring, the lateral surface of sealing ring 29 abut on the inner surface of bonnet 4 and form sealing.Sealing ring 29 can also
For O-ring seal.Valve body 1 is typically made up of copper or iron material, and adapter 6 is made up of PPR materials, sealing ring 1 and sealing ring
29 are made up of elastomeric material.
Gap is generally in order to realize the rotation of valve rod 3, between valve rod 3 and bonnet 4 to coordinate, during handwheel 5 rotates
It can produce valve rod 3 to rock.Two annular groove 3a are set up in the axle of valve rod 3 and are respectively mounted sealing in each annular groove 3a
Enclose 29, it is possible to reduce the possibility that gap location of the water between valve rod 3 and bonnet 4 leaks out, improve valve rod 3 and bonnet 4 it
Between sealing.The lateral surface of the outside portion protrusion valve rod 3 of sealing ring 29 can ensure the inner surface of sealing ring 29 and bonnet 4
Between formed closely against making the good sealing effect between valve rod 3 and bonnet 4, so that the good airproof performance of gate valve.7 sets of deduction cap
It is connected in adapter 6, the inner of deduction cap 7 is sleeved on connecting portion 1a and tightened, and at this moment the outer butting section 8b of sealing ring 1 is closely pasted
On the inner face for leaning against adapter 6, make the good sealing effect of adapter 6 and connecting portion 1a, make the good airproof performance of gate valve.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (5)
1. a kind of gate valve, including the valve body (1) with inner chamber, flashboard (2), the lock are provided with the inner chamber of the valve body (1)
The threaded upper ends of plate (2) are connected with the valve rod (3) being axially fixed in valve body (1), and the threaded upper ends of the valve body (1) are connected with
Bonnet (4), the upper end of the valve rod (3) stretches out the upper end of bonnet (4) and is fixedly connected with handwheel (5), outside the valve body (1)
The connecting portion (1a) of protrusion is provided with side, there is the water passage connected with valve body (1) inner chamber on the connecting portion (1a)
(1a1), the connecting portion (1a) are connected with adapter (6), are arranged with deduction cap (7) outside the adapter (6), the deduction cap (7) it is interior
End is sleeved on connecting portion (1a) and forms threaded connection, and the convex shoulder (6a) of protrusion is provided with the lateral surface of the adapter (6),
The bulge loop (7a) of protrusion is provided with the medial surface of deduction cap (7) outer end, the convex shoulder (6a) is located at bulge loop (7a) with being connected
Between portion (1a) and convex shoulder (6a) is resisted against on bulge loop (7a), and in a ring recessed is provided with the outer face of the connecting portion (1a)
Groove (1a2), sealing ring one (8) is installed in the groove (1a2), it is characterised in that the sealing ring one (8) include it is interior against
Portion (8a) and outer butting section (8b), the interior butting section (8a) are located in groove (1a2), outer butting section (8b) the protrusion connection
The outer face in portion (1a), and outer butting section (8b) and the inner face of adapter (6) seal against formation, the outside of the valve rod (3)
It is axially disposed on face to have two annular grooves (3a), sealing ring two (9) is mounted in two annular grooves (3a), it is described close
The lateral surface of seal two (9) outside portion protrusion valve rod (3), the lateral surface of the sealing ring two (9) abut in bonnet (4) inner surface
Go up and form sealing.
2. gate valve according to claim 1, it is characterised in that the lower end of the bonnet (4) is inserted into valve body (1) and shape
Into threaded connection, shoulder block (4a) in a ring, the lower end of the bonnet (4) are provided with the lateral surface of bonnet (4) lower end
Sealing gasket (10) in a ring is set with, the sealing gasket (10) is located between shoulder block (4a) and valve body (1), the sealing gasket
(10) upper surface and lower surface is plane, and the upper surface of the sealing gasket (10) and the lower surface of shoulder block (4a) recline shape
Into sealing, the lower surface of the sealing gasket (10) and the upper surface of valve body (1) recline to form sealing, the sealing gasket (10) it is interior
The lateral surface of side and bonnet (4) lower end reclines to form sealing.
3. gate valve according to claim 1 or 2, it is characterised in that the circular in cross-section of the sealing ring one (8).
4. gate valve according to claim 1 or 2, it is characterised in that be provided with the inner medial surface of the adapter (6) convex
The baffle ring (6b) in a ring gone out, the side wall of baffle ring (6b) the protrusion water passage (1a1).
5. gate valve according to claim 1 or 2, it is characterised in that the adapter (6) is made up of PPR materials, the valve body
(1) it is made up of copper or iron material, the water inlet end (1b) and water side (1c) of the valve body (1) are respectively provided with connecting portion (1a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720306812.8U CN206626192U (en) | 2017-03-27 | 2017-03-27 | A kind of gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720306812.8U CN206626192U (en) | 2017-03-27 | 2017-03-27 | A kind of gate valve |
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| Publication Number | Publication Date |
|---|---|
| CN206626192U true CN206626192U (en) | 2017-11-10 |
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ID=60209007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720306812.8U Active CN206626192U (en) | 2017-03-27 | 2017-03-27 | A kind of gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206626192U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503228A (en) * | 2020-12-03 | 2021-03-16 | 艾肯（江苏）工业技术有限公司 | Gate valve |
-
2017
- 2017-03-27 CN CN201720306812.8U patent/CN206626192U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503228A (en) * | 2020-12-03 | 2021-03-16 | 艾肯（江苏）工业技术有限公司 | Gate valve |
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