CN206770687U - A kind of novel stop check valve - Google Patents
A kind of novel stop check valve Download PDFInfo
- Publication number
- CN206770687U CN206770687U CN201720566234.1U CN201720566234U CN206770687U CN 206770687 U CN206770687 U CN 206770687U CN 201720566234 U CN201720566234 U CN 201720566234U CN 206770687 U CN206770687 U CN 206770687U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing ring
- contact
- shell fragment
- upgrading slot
- 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.)
- Expired - Fee Related
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- Check Valves (AREA)
Abstract
The utility model discloses a kind of novel stop check valve, the top connection bonnet of valve body, valve rod is installed on the inside of bonnet, the bottom of valve rod is provided with contact block and upgrading slot, upgrading slot is connected with sealing device, and sealing device includes valve disc, sealing ring, spring(-supported) mount, shell fragment and plectane, contact chamber is offered at the top of valve disc, contact groove is offered on the inside of contact chamber, valve disc is flexibly connected upgrading slot by contact groove；This novel stop check valve, valve disc is flexibly connected upgrading slot by contact groove, upgrading slot is located in the inner chamber of contact groove, and when valve rod rises, upgrading slot can not drive valve disc to move the very first time, so can be avoided because maloperation or be not intended to collision handwheel and caused by be opened accidentally valve situation occur, safe, the spring(-supported) mount on the inside of sealing ring applies thrust to shell fragment, shell fragment is abutted sealing ring, the inwall for the connection valve body that so sealing ring can be tightly, overall tightness are good.
Description
Technical field
Valve field is the utility model is related to, specially a kind of novel stop check valve.
Background technology
Screw down nonreturn valve has the multipurpose valve of stop valve and return valve function concurrently.Its structure type is similar to stop valve,
But valve rod is not fixedly connected with flap.When general who has surrendered's flap is pressed on valve seat under valve rod, cut-off valve action is played；Valve rod rises
Afterwards, then non-return valve action is played.Existing screw down nonreturn valve occur some because maloperation or be not intended to collision handwheel when, it may occur that meaning
It is outer open valve situation, security is not high, at the same existing screw down nonreturn valve exist valve disc sealing property it is bad the problem of.
Utility model content
The purpose of this utility model is to provide a kind of novel stop check valve possess safe and good airproof performance excellent
Point, solves the problems of the prior art.
To achieve the above object, the utility model provides following technical scheme：A kind of novel stop check valve, including valve
Body, the top of the valve body are fixedly connected with bonnet by fastening bolt, are provided with valve rod on the inside of bonnet, the valve rod it is outer
Surface is provided with external screw thread, and valve rod is flexibly connected bonnet by external screw thread, is provided with handwheel at the top of valve rod, the bottom of valve rod is provided with
Contact block and upgrading slot, contact block are fixedly connected with the bottom of valve rod, and the lateral wall of contact block is fixedly connected with upgrading slot, and upgrading slot is lived
It is dynamic to be connected with sealing device；The sealing device includes valve disc, sealing ring, spring(-supported) mount, shell fragment and plectane, is opened at the top of valve disc
Provided with contact chamber, contact groove is offered on the inside of the contact chamber, valve disc is flexibly connected upgrading slot by contact groove, valve disc
Sealing ring is fixedly connected with bottom margin, the bottom connection plectane of sealing ring, the inner side of sealing ring is provided with spring(-supported) mount
And shell fragment, by screw connection plectane at the center of spring(-supported) mount, the outside connection shell fragment of spring(-supported) mount, shell fragment is in arc-shaped, shell fragment
Outer side edges contact connection sealing ring, the outside of sealing ring is flexibly connected the inwall of valve body.
Preferably, the lateral wall of the upgrading slot is flexibly connected contact groove.
Preferably, the central axis of the contact chamber and the central axis of valve rod keep overlapping.
Preferably, the sealing ring is a kind of component of nitrile rubber material.
Preferably, the junction of the sealing ring and valve interior wall offers chamfering and ring-type locating slot, valve body it is interior
Wall is flexibly connected sealing ring by chamfering and ring-type locating slot.
Compared with prior art, the beneficial effects of the utility model are as follows：This novel stop check valve, valve disc pass through contact
Groove is flexibly connected upgrading slot, and upgrading slot is located in the inner chamber of contact groove, and when valve rod rises, upgrading slot can not drive valve the very first time
Disk move, so can be avoided because maloperation or be not intended to collision handwheel and caused by be opened accidentally valve situation occur, safety
Property it is high, the spring(-supported) mount on the inside of sealing ring applies thrust to shell fragment, shell fragment is abutted sealing ring, such sealing ring can be tightly
Connection valve body inwall, overall tightness is good.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is sealing device close-up schematic view of the present utility model；
Fig. 3 is spring(-supported) mount schematic diagram of the present utility model.
In figure：1 valve body, 2 bonnets, 3 valve rods, 31 external screw threads, 32 contact blocks, 33 upgrading slots, 4 handwheels, 5 sealing devices, 51
Valve disc, 511 contact chambers, 512 contact grooves, 52 sealing rings, 53 spring(-supported) mounts, 54 shell fragments, 55 plectanes.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-3, a kind of novel stop check valve, including valve body 1 are referred to, the outside of valve body 1 offers water inlet and gone out
The mouth of a river, the top of valve body 1 are fixedly connected with bonnet 2 by fastening bolt, and the inner side of bonnet 2 is provided with valve rod 3, valve rod 3 it is outer
Surface is provided with external screw thread 31, and valve rod 3 is flexibly connected bonnet 2 by external screw thread 31, and the top of valve rod 3 is provided with handwheel 4, rotates hand
Take turns 4 cans band ovable valve stem 3 to rise or fall, complete the closing of valve, the bottom of valve rod 3 is provided with contact block 32 and upgrading slot
33, valve rod 3 drives contact block 32 and the raising and lowering of upgrading slot 33, contact block 32 to be fixedly connected with the bottom of valve rod 3, contact block 32
Lateral wall be fixedly connected with upgrading slot 33, upgrading slot 33 is connected with sealing device 5；Sealing device 5 includes valve disc 51, sealing
The collar 52, spring(-supported) mount 53, shell fragment 54 and plectane 55, the top of valve disc 51 offer contact chamber 511, contact the central shaft of chamber 511
The central axis of line and valve rod 3 keeps overlapping, and the contact block 32 and upgrading slot 33 that the bottom of valve rod 3 is fixedly connected are located at valve disc 51 and pushed up
In the inner chamber in portion, after contact chamber 511 overlaps with the central axis of valve rod 3, valve rod 3 is more steady when moving up and down, in contact chamber
511 inner side offers contact groove 512, and the lateral wall of upgrading slot 33 is flexibly connected contact groove 512, i.e., upgrading slot 33 is positioned at contact
In the inner chamber of groove 512, valve disc 51 is flexibly connected upgrading slot 33 by contact groove 512, is fixedly connected at the bottom margin of valve disc 51
There is sealing ring 52, sealing ring 52 is used for the opening of the bottom of sealed valve body 1, the bottom connection plectane 55 of sealing ring 52, circle
Plate 55 ensures the closure of sealing ring 52, prevents water from flowing into sealing ring 52, avoids part in sealing ring 52 from becoming rusty
Erosion, the inner side of sealing ring 52 is provided with spring(-supported) mount 53 and shell fragment 54, passes through screw connection plectane 55, bullet at the center of spring(-supported) mount 53
The outside connection shell fragment 54 of spring support 53, shell fragment 54 are in arc-shaped, and the outer side edges contact of shell fragment 54 connects sealing ring 52, spring(-supported) mount
53 be in compressive state, and spring(-supported) mount 53 applies thrust to shell fragment 54, shell fragment 54 is abutted sealing ring 52, and make sealing ring 52 tight
The inwall of tight connection valve body 1, sealing ring 52 is a kind of component of nitrile rubber material, using made of nitrile rubber material
The oil resistivity of sealing ring 52 is good, while wearability is higher, and the outside of sealing ring 52 is flexibly connected the inwall of valve body 1, sealing shroud
The junction of ring 52 and the inwall of valve body 1 offers chamfering and ring-type locating slot, i.e., chamfering, valve are opened up at the inner wall edge of valve body 1
The inwall of body 1 is flexibly connected sealing ring 52 by chamfering and ring-type locating slot, and such sealing ring 52 and valve body 1 connect tighter
It is close.
This novel stop check valve, the bottom of valve rod 3 are provided with contact block 32 and upgrading slot 33, and valve rod 3 drives contact block 32
With the raising and lowering of upgrading slot 33, valve disc 51 is flexibly connected upgrading slot 33 by contact groove 512, and upgrading slot 33 is located at contact groove
In 512 inner chamber, when valve rod 3 rises, upgrading slot 33 can not drive valve disc 51 to move the very first time, so can be avoided because by mistake
Operation is not intended to collision handwheel and causes the situation for being opened accidentally valve to occur, and safe, the inner side of sealing ring 52 is provided with
Spring(-supported) mount 53 and shell fragment 54, spring(-supported) mount 53 are in compressive state, and spring(-supported) mount 53 applies thrust to shell fragment 54, make shell fragment 54 against sealing
The collar 52, and make the inwall of the connection valve body 1 of sealing ring 52 tightly, good airproof performance, open up down at the inner wall edge of valve body 1
Angle, the inwall of valve body 1 are flexibly connected sealing ring 52 by chamfering and ring-type locating slot, and such sealing ring 52 and valve body 1 connect
Connect closer.
In summary：This novel stop check valve, valve disc 51 are flexibly connected upgrading slot 33, upgrading slot by contact groove 512
33 in the inner chamber of contact groove 512, and when valve rod 3 rises, upgrading slot 33 can not drive valve disc 51 to move the very first time, so may be used
With avoid because maloperation or be not intended to collision handwheel and caused by be opened accidentally valve situation occur, safe, sealing ring
The spring(-supported) mount 53 of 52 inner sides applies thrust to shell fragment 54, shell fragment 54 is abutted sealing ring 52, such sealing ring 52 can be tightly
Connection valve body 1 inwall, overall tightness is good.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of novel stop check valve, including valve body (1), it is characterised in that：Pass through fastening bolt at the top of the valve body (1)
Bonnet (2) is fixedly connected with, valve rod (3) is installed on the inside of bonnet (2), the outer surface of the valve rod (3) is provided with external screw thread
(31), valve rod (3) is flexibly connected bonnet (2) by external screw thread (31), and handwheel (4), valve rod (3) are provided with the top of valve rod (3)
Bottom be provided with contact block (32) and upgrading slot (33), contact block (32) is fixedly connected with the bottom of valve rod (3), contact block (32)
Lateral wall is fixedly connected with upgrading slot (33), and upgrading slot (33) is connected with sealing device (5)；The sealing device (5) includes
Valve disc (51), sealing ring (52), spring(-supported) mount (53), shell fragment (54) and plectane (55), valve disc offer contact at the top of (51)
Chamber (511), offers contact groove (512) on the inside of the contact chamber (511), and valve disc (51) passes through contact groove (512) activity
Upgrading slot (33) is connected, sealing ring (52), the bottom of sealing ring (52) are fixedly connected with the bottom margin of valve disc (51)
Plectane (55) is connected, the inner side of sealing ring (52) is provided with spring(-supported) mount (53) and shell fragment (54), led at the center of spring(-supported) mount (53)
Cross screw connection plectane (55), the outside connection shell fragment (54) of spring(-supported) mount (53), shell fragment (54) be in arc-shaped, shell fragment (54) outside
Contact aside connection sealing ring (52), the outside of sealing ring (52) are flexibly connected the inwall of valve body (1).
A kind of 2. novel stop check valve according to claim 1, it is characterised in that：The lateral wall of the upgrading slot (33)
It is flexibly connected contact groove (512).
A kind of 3. novel stop check valve according to claim 1, it is characterised in that：The center of the contact chamber (511)
The central axis of axis and valve rod (3) keeps overlapping.
A kind of 4. novel stop check valve according to claim 1, it is characterised in that：The sealing ring (52) is one kind
The component of nitrile rubber material.
A kind of 5. novel stop check valve according to claim 1, it is characterised in that：The sealing ring (52) and valve body
(1) junction of inwall offers chamfering and ring-type locating slot, and the inwall of valve body (1) is connected by chamfering and the activity of ring-type locating slot
Connect sealing ring (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720566234.1U CN206770687U (en) | 2017-05-19 | 2017-05-19 | A kind of novel stop check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720566234.1U CN206770687U (en) | 2017-05-19 | 2017-05-19 | A kind of novel stop check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206770687U true CN206770687U (en) | 2017-12-19 |
Family
ID=60640777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720566234.1U Expired - Fee Related CN206770687U (en) | 2017-05-19 | 2017-05-19 | A kind of novel stop check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206770687U (en) |
-
2017
- 2017-05-19 CN CN201720566234.1U patent/CN206770687U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171219 Termination date: 20200519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |