CN206290731U - A kind of stop valve - Google Patents
A kind of stop valve Download PDFInfo
- Publication number
- CN206290731U CN206290731U CN201621367479.3U CN201621367479U CN206290731U CN 206290731 U CN206290731 U CN 206290731U CN 201621367479 U CN201621367479 U CN 201621367479U CN 206290731 U CN206290731 U CN 206290731U
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- valve
- screw
- sealing gasket
- columnar part
- hole
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Abstract
The utility model provides a kind of stop valve, belongs to valve technology field.It solves the problems, such as that existing stop valve sealing is poor.This stop valve, including valve body, valve rod, valve element and sealing gasket, also there is water hole in valve body, there is connecting hole on valve element, valve rod is connected with connecting hole inner thread, there is columnar part on connecting hole bottom surface, escape groove is formed between the columnar part periphery wall and connecting hole inwall, sealing gasket is connected on spool end by screw, and the end of screw is stretched into columnar part, avoidance hole is offered on the inner end face of valve rod, when valve rod is rotated forward, sealing gasket is pressed on the aperture edge of water hole, can move backward and make in the inner insertion escape groove of valve rod with movable valve plug when valve rod is inverted, and columnar part insertion is avoided in hole.This stop valve causes that structure is compacter on the basis of sealing is ensured.
Description
Technical field
The utility model belongs to valve technology field, is related to a kind of stop valve.
Background technology
Stop valve belongs to forced seal formula valve also known as pipe valve valve, so in valve closing, it is necessary to apply to press to flap
Power, is not leaked with forced seal face, and stop valve is a kind of one of most popular valve, why very popular it is be due to
Frictional force is small between sealing surface during opening and closing, relatively durable, and Lift is less, easy to manufacture, easy to maintenance, is not only applicable
In mesolow, and suitable for high pressure.
Such as Chinese invention patent application (application number：201410832968.0) a kind of plastic stop valve is disclosed, is included
Bonnet, flap, valve rod and plastics valve body, valve rod pass through bonnet, and valve seat is provided with plastic valve body, and described valve seat has valve seat
Opening, valve seat opening is relative with the flap positioned at stem bottom, and the two ends of plastics valve body have and valve seat opening in communication respectively
Flow inlet and go out head piece, the top of plastics valve body has the transition connector of plastics valve body, is provided with the transition connector
Plastics connection transition piece with bonnet connection inserting part, its outer rim is fixed with the transition connector of plastics valve body by hot melt adhesion
It is integrated, bonnet is connected with bonnet connection inserting part, is connected with threaded stem by stem, valve can be made by rotary valve rod
Valve is lifted, and realizes the keying of stop valve, but the flap of the stop valve realizes sealing with valve body by hard cooperation, in long-term use
During easily occur between valve body and flap crimp, so as to influence sealing, therefore, the stop valve having at present is used
Sealing gasket is sealed, i.e., connect sealing gasket in the lower end of flap, is compressed with valve body by sealing gasket and is sealed, and sealing gasket
It is connected on flap by screw, and in order to ensure the bonding strength between screw and flap, screw needs to meet certain length
Degree, and for the compactedness of holding structure, screw often punches flap, in use, hydraulic pressure high easily makes water from screw
Seepage at the screw of connection, sealing is poor.
The content of the invention
The purpose of this utility model is directed to existing technology and there is above mentioned problem, it is proposed that a kind of stop valve, the cut-off
Valve causes that structure is compacter on the basis of sealing is ensured.
The purpose of this utility model can be realized by following technical proposal：A kind of stop valve, including with water inlet and
The valve body of delivery port, the valve rod being rotatably connected in valve body, the valve element and sealing gasket being slidably connected in valve body, in valve body also
With the water hole for connecting water inlet and delivery port, there is connecting hole, the inner periphery wall of the valve rod on the valve element
It is connected with connecting hole inner thread, it is characterised in that there is columnar part, the columnar part periphery wall and company on the connecting hole bottom surface
Connect and form escape groove between the inwall of hole, the sealing gasket is connected on spool end by screw, and post is stretched into the end of screw
In shape portion, avoidance hole is offered on the inner end face of the valve rod, with the positive movement of movable valve plug and can made when valve rod is rotated forward
Sealing gasket is pressed on the aperture edge of water hole, and the inner of valve rod can be moved backward with movable valve plug and made when valve rod is inverted
In insertion escape groove, and columnar part insertion is avoided in hole.
Valve rod can be positive mobile with movable valve plug when rotating forward, i.e., valve element is near water hole, and sealing gasket was pressed on water
On the aperture edge in hole, so as to block water hole so that stop valve is closed, and can reversely be moved with movable valve plug when valve rod is inverted
Dynamic, i.e. valve element makes sealing gasket depart from the aperture edge of water hole away from water hole, and stop valve is opened, wherein due to using close
The sealing means of packing, with preferably sealing stability, the depth of connecting hole needs to meet the stroke of valve element movement, in valve element
Shift motion inner valve stem can not depart from valve element, while valve element need with sealing gasket be connected by screw, it is necessary to meet with
The bonding strength of screw, is that this sets columnar part on the bottom surface of connecting hole, and end can be spirally connected when in mode connects for screw to valve element
In columnar part, so as to the length of screw can either be ensured, can avoid being extended through because screw is more long in traditional structure again
The phenomenon of connecting hole, so as to ensure sealing, wherein offers avoidance hole, therefore reversely move in valve element on the inner end face of valve rod
When moving and make stop valve fully to open, the inner of valve rod is inserted into escape groove, and columnar part is inserted into avoiding in hole, from
And when shortening the state valve rod outer end to sealing gasket distance, so as to be caused on the basis of sealing and spool stroke is ensured
Structure is compacter.
In above-mentioned stop valve, the valve element is in the form of a column, and screw is offered vertically in spool end, the screw it is interior
End is extended in columnar part, and the inner of screw is closed, and the screw is through sealing gasket and is screwed onto in screw.It is strong according to connection
Degree requires the suitable screw length of selection, and the height of columnar part is designed according to screw length, so as to ensure bonding strength
On the basis of cause that the inner closing of screw, i.e. screw are blind hole, so as to avoid water from passing through screw seepage, it is ensured that sealing.
In above-mentioned stop valve, the stopper slot of circle, the center of the stopper slot are offered on the end face of the valve element
Position has convex portion, and above-mentioned screw is opened on the end face of convex portion, and the sealing gasket is connected in stopper slot, and screw head
It is pressed on sealing gasket.Sealing gasket part is located in stopper slot, so that structure is compacter, while stopper slot and sealing gasket
Play effect of contraction, i.e. sealing gasket to be compacted and can mutually be compressed with stopper slot cell wall during circumferential expansion, i.e., can avoid sealing
Pad excessive deformation and damage, also increase the sealing area of sealing gasket, improve sealing, wherein screw is opened in convex portion end face
On, i.e., screw is inner is located in columnar part, and outer end is located on convex portion, so as to take into account screw length and structure it is compact.
In above-mentioned stop valve, the stopper slot of circle is offered on the end face of the valve element, above-mentioned screw is opened in limit
The center of position groove bottom, the sealing gasket is connected in stopper slot, and the head of screw is pressed on sealing gasket.This is spacing
Groove equally has the binding effect to sealing gasket, to increase sealing, while suitably increasing the height of columnar part according to screw length
Degree, it is same to ensure the compact of structure.
In above-mentioned stop valve, the internal thread on the connecting hole inwall is extended in escape groove.I.e. valve element is reversely moved
The end of valve rod can be adequately inserted in escape groove when dynamic so that the compact conformation during state.
In above-mentioned stop valve, the columnar part is located at the center of connecting hole bottom surface, the outer peripheral face of the columnar part
It is the conical surface, and the end edge edge of columnar part has chamfering.Columnar part is located at the center of connecting hole, therefore avoidance hole also can
Keep uniform positioned at the wall thickness of the center of valve rod, i.e. valve rod, so as to avoid occurring deforming in valve rod injection moulding process, and column
The conical surface and chamfering in portion are conducive to columnar part to insert in avoidance hole, it is to avoid clamping stagnation occur.
In above-mentioned stop valve, the extension with tubulose in the valve body, the extension is coaxial with water inlet to be set
Put and connect, the water hole is opened on the side wall of extension, between the outer wall of the extension and the inwall of body cavity
With space.Extension is used to open up water hole, and the wherein gap between extension outer wall and body cavity inwall can be used for
Water by after water hole flow, with increase water by area.
In above-mentioned stop valve, on the outer wall of the extension around water hole have annular gear edge, when valve element just
To it is mobile when sealing gasket be pressed on gear along upper, the gear had water space between outer wall and the interior cavity wall of valve body.Gear edge
External diameter of the external diameter less than sealing gasket so that sealing gasket is with gear along fully compression, with preferable sealing, what water inlet entered
Water extends through portion and enters gear along interior, is then overflowed to the water space of crossing around gear edge from the mouth of a river of crossing upward, then by crossing water
Gap is gathered to delivery port, and the structure causes that water overflows backward surrounding diffusion by crossing the mouth of a river, therefore with property is preferably passed through, makes
Obtaining stop valve has and feed pipe identical latus rectum flow.
In above-mentioned stop valve, bonnet is also fixed with the valve body, above-mentioned valve rod passes through bonnet, and valve rod and bonnet
Connection is rotated, some gathering sills are circumferentially offered on the bonnet inwall, the length direction of some gathering sills and the axle of valve rod
To identical, circumferentially there are some guiding convex edges on the valve element outer wall, the guiding convex edge is slidably connected in gathering sill.Pass through
It is oriented to convex edge and gathering sill to coordinate so that valve element can be moved axially, but can not be circumferentially rotated, so as to by the rotation of valve rod
It is changed into axial movement, and ensures the stability of valve element.
In above-mentioned stop valve, the valve element is made of engineering plastics.Lower production cost.
Compared with prior art, this stop valve has advantages below：
1st, due to setting columnar part on the bottom surface of connecting hole, end can be screwed onto columnar part when in mode connects for screw to valve element
It is interior, so as to the length of screw can either be ensured, can avoid extending through connecting hole because screw is more long in traditional structure again
Phenomenon, so as to ensure sealing.
2nd, due to offering avoidance hole on the inner end face of valve rod, therefore moved backward in valve element and stop valve is fully opened
Qi Shi, the inner of valve rod is inserted into escape groove, and columnar part is inserted into avoiding in hole, valve during so as to shortening the state
Bar outer end to sealing gasket distance, so as to cause that structure is compacter on the basis of sealing and spool stroke is ensured.
Brief description of the drawings
Fig. 1 is off structure sectional view when valve is closed.
Fig. 2 is the schematic enlarged-scale view at A in Fig. 1.
Fig. 3 is off structure sectional view when valve is opened.
Fig. 4 is the structure top view of valve body.
Fig. 5 is the structure sectional view of stop valve in embodiment two.
In figure, 1, valve body；11st, water inlet；12nd, delivery port；13rd, water hole；14th, extension；15th, edge is kept off；16th, between crossing water
Gap；2nd, valve rod；21st, hole is avoided；3rd, valve element；31st, connecting hole；311st, internal thread；32nd, columnar part；321st, chamfering；33rd, escape groove；
34th, screw；35th, stopper slot；36th, convex portion；37th, it is oriented to convex edge；4th, sealing gasket；5th, screw；6th, bonnet；61st, gathering sill.
Specific embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of stop valve, including valve body 1, bonnet 6, valve rod 2, valve element 3 and sealing gasket 4, valve
One end of body 1 has a water inlet 11, and the other end has a delivery port 12, the delivery port 12 and water inlet 11 and feed pipe of valve body 1 it
Between can be using the outer tooth connection of screw thread, the connection of screw thread interior tooth or welding, the inside of valve body 1 has water hole 13, the He of water inlet 11
Delivery port 12 is connected by water hole 13, and bonnet 6 is connected on valve body 1, and one end of valve rod 2 passes through bonnet 6 and stretches into valve body 1
It is interior, and valve rod 2 and bonnet 6 rotate and be connected, is offered on the inner end face of valve rod 2 and avoids hole 21, valve element 3 is in the form of a column and uses work
Engineering plastics are made, and circumferentially have some guiding convex edges 37 on the outer wall of valve element 3, and some gathering sills are circumferentially offered on the inwall of bonnet 6
61, the length direction of some gathering sills 61 is identical with the axial direction of valve rod 2, is oriented to convex edge 37 and is slidably connected in gathering sill 61,
Enable that valve element 3 is moved axially, but can not circumferentially rotate, connecting hole 31 is offered on valve element 3, and the inner of valve rod 2 is stretched
Enter connecting hole 31, and the periphery wall of valve rod 2 is connected with the inner thread of connecting hole 31, has columnar part 32 on the bottom surface of connecting hole 31,
Columnar part 32 is located at the center of the bottom surface of connecting hole 31, and the outer peripheral face of the columnar part 32 is the conical surface, and columnar part 32 end
Edge has chamfering 321, escape groove 33 is formed between the periphery wall of columnar part 32 and the inwall of connecting hole 31, on the inwall of connecting hole 31
Internal thread 311 is extended in escape groove 33, and the stopper slot 35 of circle, the centre bit of stopper slot 35 are offered on the end face of valve element 3
Put with convex portion 36, screw 34 is offered on the end face of convex portion 36, the inner of the screw 34 is extended in columnar part 32, and screw
34 inner closing, sealing gasket 4 is connected in stopper slot 35, and screw 5 is through sealing gasket 4 and is screwed onto in screw 34, and screw 5
Head be pressed on sealing gasket 4, can be positive mobile with movable valve plug 3 when valve rod 2 is rotated forward, i.e. valve element 3 near water hole 13, and
Sealing gasket 4 is set to be pressed on the aperture edge of water hole 13, so as to block water hole 13 so that stop valve is closed, when valve rod 2
Can be moved backward with movable valve plug 3 during reversion, i.e. valve element 3 makes sealing gasket 4 depart from the aperture of water hole 13 away from water hole 13
Edge, stop valve is opened, and when stop valve is fully opened, the inner of valve rod 2 is inserted into escape groove 33, and the energy of columnar part 32
Enough insertions are avoided in hole 21, during so as to shortening the state outer end of valve rod 2 to sealing gasket 4 distance, so as in guarantee sealing
With on the basis of the stroke of valve element 3 cause structure it is compacter.
With reference to shown in Fig. 4, the extension 14 with tubulose, the extension 14 and the coaxial setting of water inlet 11 in valve body 1
And connect, water hole 13 is opened on the side wall of extension 14, is had between the outer wall of extension 14 and the inwall of the inner chamber of valve body 1
Space, has the gear of annular along 15 around water hole 13 on the outer wall of extension 14, when valve element 3 is positive mobile, sealing gasket 4 is pressed
Tight to keep off along 15, the gear had water space 16 between 15 outer walls and the interior cavity wall of valve body 1.The outer wall of extension 14 with
Gap and mistake water space 16 in valve body 1 between cavity wall are used for water and are flowed by after water hole 13, to increase passing through for water
Area.
Embodiment two：
The structure of the stop valve is essentially identical with embodiment one, and difference is as shown in figure 5, being opened on the end face of valve element 3
The stopper slot 35 of circle is provided with, screw 34 is opened in the center of the bottom surface of stopper slot 35, and sealing gasket 4 is connected in stopper slot 35
It is interior, and the head of screw 5 is pressed on sealing gasket 4, the stopper slot 35 equally has the binding effect to sealing gasket 4, to increase
Sealing, while suitably increase the height of columnar part 32 according to the length of screw 5, it is same to ensure the compact of structure.
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 or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more having used the terms such as valve body 1, water inlet 11, delivery port 12 herein, it is not precluded from using other
The possibility of term.It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；Them
Any additional limitation is construed to all to be disagreed with the utility model spirit.
Claims (10)
1. a kind of stop valve, including the valve body (1) with water inlet (11) and delivery port (12), it is rotatably connected in valve body (1)
Valve rod (2), the valve element (3) and sealing gasket (4) that are slidably connected in valve body (1), also have in valve body (1) for connect into
The mouth of a river (11) and the water hole (13) of delivery port (12), have connecting hole (31) on the valve element (3), the valve rod (2) is inner
Periphery wall be connected with connecting hole (31) inner thread, it is characterised in that on connecting hole (31) bottom surface have columnar part
(32) escape groove (33), is formed between columnar part (32) periphery wall and connecting hole (31) inwall, the sealing gasket (4) is by spiral shell
Nail (5) is connected on valve element (3) end face, and the end of screw (5) is stretched into columnar part (32), the inner end of the valve rod (2)
Avoidance hole (21) is offered on face, with the positive movement of movable valve plug (3) and sealing gasket (4) can be compressed when valve rod (2) is rotated forward
On the aperture edge of water hole (13), valve rod (2) can be moved backward with movable valve plug (3) when valve rod (2) is inverted and made
In the inner insertion escape groove (33), and columnar part (32) insertion is avoided in hole (21).
2. stop valve according to claim 1, it is characterised in that the valve element (3) is in the form of a column, on valve element (3) end edge
Screw (34) axially is offered, the inner of the screw (34) is extended in columnar part (32), and the inner of screw (34) is closed, institute
Screw (5) is stated through sealing gasket (4) and is screwed onto in screw (34).
3. stop valve according to claim 2, it is characterised in that the limit of circle is offered on the end face of the valve element (3)
Position groove (35), the center of the stopper slot (35) has convex portion (36), and above-mentioned screw (34) is opened in the end of convex portion (36)
On face, the sealing gasket (4) is connected in stopper slot (35), and the head of screw (5) is pressed on sealing gasket (4).
4. stop valve according to claim 2, it is characterised in that the limit of circle is offered on the end face of the valve element (3)
Position groove (35), above-mentioned screw (34) is opened in the center of stopper slot (35) bottom surface, and the sealing gasket (4) is connected in stopper slot
(35) in, and the head of screw (5) is pressed on sealing gasket (4).
5. the stop valve according to Claims 2 or 3 or 4, it is characterised in that the internal thread on connecting hole (31) inwall
(311) extend in escape groove (33).
6. the stop valve according to Claims 2 or 3 or 4, it is characterised in that the columnar part (32) is positioned at connecting hole (31)
The center of bottom surface, the outer peripheral face of the columnar part (32) is the conical surface, and the end edge edge of columnar part (32) has chamfering
(321)。
7. the stop valve according to Claims 2 or 3 or 4, it is characterised in that the extension with tubulose in the valve body (1)
Portion (14), the extension (14) and water inlet (11) coaxial setting are simultaneously connected, and the water hole (13) is opened in extension
(14) on side wall, there is space between the outer wall of the extension (14) and the inwall of valve body (1) inner chamber.
8. stop valve according to claim 7, it is characterised in that around water hole on the outer wall of the extension (14)
(13) with annular gear along (15), when valve element (3) is positive mobile, sealing gasket (4) is pressed on gear edge (15), the gear edge
(15) there is water space (16) between the interior cavity wall of outer wall and valve body (1).
9. the stop valve according to Claims 2 or 3 or 4, it is characterised in that be also fixed with bonnet on the valve body (1)
(6), above-mentioned valve rod (2) rotates with bonnet (6) and is connected through bonnet (6), and valve rod (2), is circumferentially opened on bonnet (6) inwall
Some gathering sills (61) are provided with, the length direction of some gathering sills (61) is identical with the axial direction of valve rod (2), the valve element (3)
Circumferentially there are some guiding convex edges (37), the guiding convex edge (37) is slidably connected in gathering sill (61) on outer wall.
10. the stop valve according to Claims 2 or 3 or 4, it is characterised in that the valve element (3) uses engineering plastics system
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621367479.3U CN206290731U (en) | 2016-12-13 | 2016-12-13 | A kind of stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621367479.3U CN206290731U (en) | 2016-12-13 | 2016-12-13 | A kind of stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290731U true CN206290731U (en) | 2017-06-30 |
Family
ID=59104434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621367479.3U Active CN206290731U (en) | 2016-12-13 | 2016-12-13 | A kind of stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654702A (en) * | 2017-10-19 | 2018-02-02 | 上海诺科泵业有限公司 | A kind of check valve |
-
2016
- 2016-12-13 CN CN201621367479.3U patent/CN206290731U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654702A (en) * | 2017-10-19 | 2018-02-02 | 上海诺科泵业有限公司 | A kind of check valve |
| CN107654702B (en) * | 2017-10-19 | 2024-05-17 | 上海诺科泵业有限公司 | One-way valve |
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