CN204922108U - Vertical check valve of closed is delayed in liquid accuse - Google Patents
Vertical check valve of closed is delayed in liquid accuse Download PDFInfo
- Publication number
- CN204922108U CN204922108U CN201520714219.8U CN201520714219U CN204922108U CN 204922108 U CN204922108 U CN 204922108U CN 201520714219 U CN201520714219 U CN 201520714219U CN 204922108 U CN204922108 U CN 204922108U
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- China
- Prior art keywords
- valve
- valve body
- piston assembly
- piston
- lower valve
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- Expired - Fee Related
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- Check Valves (AREA)
- Details Of Valves (AREA)
Abstract
The utility model provides a vertical check valve of closed is delayed in liquid accuse, includes valve body, lower valve body, valve clack, and last valve body wherein constitutes the valve pocket that the confession medium link up with lower valve body from bottom to top through the attachment bolt hookup, and the valve clack setting makes whole valve pocket form the last valve pocket that can keep apart, regulate and control, lower valve pocket on the disk seat of last valve body inner chamber, the upper portion valve rod of valve clack wear the last uide bushing of cover valve body intermediate position on lieing in, the lower part of valve clack sets up a buffering piston assembly, piston assembly's front end piston portion wears the cover in the suspension under in the piston cylinder in the valve pocket, leave cushion chamber institute between piston assembly's the front end piston and the cylinder bottom of piston cylinder, one side outside of stating down the valve body is equipped with a quick check valve, the one end of check valve then communicates with the cushion chamber that cushions the piston assembly lower part with lower valve pocket intercommunication, its other end fast, the opposite side outside of valve body is equipped with a buffer adjustment speed regulation needle valve down, one end and lower valve pocket intercommunication, its other end of buffer adjustment speed regulation needle valve then communicate with the cushion chamber that cushions the piston assembly lower part.
Description
Technical field
The utility model relates to a kind of safety check, especially a kind of hydraulic control slow closing type Vertical Lift Check Valves.
Background technique
Common Vertical Lift Check Valves (H41), when closing, due to the effect of water hammer, makes valve produce huge sound, produces, easily make sealing surface crack because this sound is clashed into by flap and sealing surface.Therefore the sealability not only affecting valve also makes the whole service life of valve shorten.
Therefore, necessary improvement is carried out to the Lift check valve used now, eliminate the technical problem that water hammer, Yi Shi in working life related domain production firm of improving valve and research staff expect to solve.
Model utility content
The purpose of the present utility model: be intended to propose one and can not only reduce or eliminate water hammer generation, and the novel hydraulic-control lift slow-closing check valve in valve body working life can be improved.
Foregoing invention object has following technological scheme to realize:
This hydraulic control slow closing type Vertical Lift Check Valves, comprise upper valve body 2, lower valve body 6, flap 3, upper valve body 2 wherein and lower valve body 6 connect the valve pocket forming and supply medium through from bottom to top by attachment bolt 11, flap 3 is arranged on the valve seat 12 of upper valve body inner chamber, make whole valve pocket form uuper valve chamber B, the lower valve chamber A that can isolate, regulate and control, it is characterized in that:
The top valve rod of A, described flap 3 is set on the upper guide sleeve 1 being positioned at upper valve body neutral position, the bottom of described flap 3 arranges a damper piston assembly 4, the forward bolt piston portion of described piston assembly 4 is set in the piston cylinder 9 that is arranged in lower valve chamber A, leaves buffer cavity 7 between the forward bolt piston of described piston assembly 4 and the cylinder bottom of piston cylinder 9.
The outside, side of B, described lower valve body 6 is provided with a fast cut-off valve 10, and one end of described fast cut-off valve 10 is communicated with lower valve chamber A, and its other end is then communicated with the buffer cavity 7 of damper piston assembly 4 bottom; The opposite side outside of described lower valve body 6 is provided with a buffering governing speed metering pin valve 8, and one end of described buffering governing speed metering pin valve 8 is communicated with lower valve chamber A, and its other end is then communicated with the buffer cavity 7 of damper piston assembly 4 bottom.
Lower guide sleeve 5 is provided with between described damper piston assembly 4 bottom and piston cylinder 9.
According to this hydraulic control slow closing type Vertical Lift Check Valves that above technological scheme proposes, make to fill medium by buffer speed metering pin valve and fast cut-off valve to damper piston room during valve open, during closedown, flap moves downward and is subject to the indoor medium of damper piston and does not have emptying impact, and the speed of closedown will slow down; Speed during closedown can be regulated by buffer speed metering pin valve, the shut-in time controls flexibly, will reduce sealing surface like this and be impacted, add the working life of valve, sealability and ambient noise.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
In figure: valve body 7-damper piston room 8-buffer speed metering pin valve 9-piston cylinder 10-fast cut-off valve 11-connecting bolt 12-valve seat A-lower valve chamber B-uuper valve chamber C-medium input end D-medium output terminal under guide sleeve 6-under 1-upper guide sleeve 2-upper valve body 3-flap 4-damper piston assembly 5-.
Embodiment
This hydraulic control slow closing type Vertical Lift Check Valves as shown in Figure 1, it is a kind of inventive improvements to the Vertical Lift Check Valves generally used now.
This hydraulic control slow closing type Vertical Lift Check Valves, comprise upper valve body 2, lower valve body 6, flap 3, upper valve body 2 wherein and lower valve body 6 connect the valve pocket forming and supply medium through from bottom to top by attachment bolt 10, flap 3 is arranged on the valve seat 11 of upper valve body inner chamber, make whole valve pocket form uuper valve chamber B, the lower valve chamber A that can isolate, regulate and control, it is characterized in that:
The top valve rod of described flap 3 is set on the upper guide sleeve 1 being positioned at upper valve body neutral position, the bottom of described flap 3 arranges a damper piston assembly 4, the forward bolt piston portion of described piston assembly 4 is set in the piston cylinder 9 that is suspended in lower valve chamber A, leaves buffer cavity 7 between the forward bolt piston of described piston assembly 4 and the cylinder bottom of piston cylinder 9.
The outside, side of described lower valve body 6 is provided with a fast cut-off valve 10, and one end of described fast cut-off valve 10 is communicated with lower valve chamber A, and its other end is then communicated with the buffer cavity 7 of damper piston assembly 4 bottom; The opposite side outside of described lower valve body 6 is provided with a buffering governing speed metering pin valve 8, and one end of described buffering governing speed metering pin valve 8 is communicated with lower valve chamber A, and its other end is then communicated with the buffer cavity 7 of damper piston assembly 4 bottom.
This hydraulic control slow closing type Vertical Lift Check Valves is actually a kind of combined valve, and traditional Vertical Lift Check Valves and two auxiliary buffer speed metering pin valves, fast cut-off valves organically combine by it; Its working principle is as follows:
When upstream medium enters valve body through medium input end C, owing to entering the jacking crossing flow medium in lower valve chamber A, make flap 3 moves, cause valve to be in opening state, caused flow medium to enter uuper valve chamber B and entered downstream line through medium output terminal D.
Enter lower valve chamber A while valve open at mistake flow medium, the connectivity structure consisted of the buffer cavity 7 of fast cut-off valve 10, buffer speed metering pin valve 8, damper piston assembly 4 bottom, fills medium to buffer cavity 7.And flap moves downward and is subject to medium in buffer cavity 7 and does not have emptying impact when closing, the speed of closing will slow down, and (speed of now closing can regulate 8 by buffer speed metering pin valve, shut-in time controls flexibly), sealing surface will be reduced like this impacted, add the working life of valve, sealability and ambient noise.
Below be only the specific embodiment that the applicant provides according to claim content, any unsubstantiality carried out according to this intention improves, and all belongs to the category of the utility model protection.
Claims (2)
1. a hydraulic control slow closing type Vertical Lift Check Valves, comprise upper valve body (2), lower valve body (6), flap (3), upper valve body (2) wherein and lower valve body (6) connect the valve pocket forming and supply medium through from bottom to top by attachment bolt (10), flap (3) is arranged on the valve seat (11) of upper valve body inner chamber, make whole valve pocket form uuper valve chamber (B), the lower valve chamber (A) that can isolate, regulate and control, it is characterized in that:
The top valve rod of A. described flap (3) is set on the upper guide sleeve (1) being positioned at upper valve body neutral position, the bottom of described flap (3) arranges a damper piston assembly (4), the forward bolt piston portion of described piston assembly (4) is set in the piston cylinder (9) that is suspended in lower valve chamber (A), leaves buffer cavity (7) between the forward bolt piston of described piston assembly (4) and the cylinder bottom of piston cylinder (9);
B. the outside, side of described lower valve body (6) is provided with a fast cut-off valve (10), one end of described fast cut-off valve (10) is communicated with lower valve chamber (A), and its other end is then communicated with the buffer cavity (7) of damper piston assembly (4) bottom; The opposite side outside of described lower valve body (6) is provided with a buffering governing speed metering pin valve (8), one end of described buffering governing speed metering pin valve (8) is communicated with lower valve chamber (A), and its other end is then communicated with the buffer cavity (7) of damper piston assembly (4) bottom.
2. a kind of hydraulic control slow closing type Vertical Lift Check Valves as claimed in claim 1, is characterized in that: be provided with lower guide sleeve (5) between described damper piston assembly (4) bottom and piston cylinder (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520714219.8U CN204922108U (en) | 2015-09-15 | 2015-09-15 | Vertical check valve of closed is delayed in liquid accuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520714219.8U CN204922108U (en) | 2015-09-15 | 2015-09-15 | Vertical check valve of closed is delayed in liquid accuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922108U true CN204922108U (en) | 2015-12-30 |
Family
ID=54971237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520714219.8U Expired - Fee Related CN204922108U (en) | 2015-09-15 | 2015-09-15 | Vertical check valve of closed is delayed in liquid accuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018058364A1 (en) * | 2016-09-28 | 2018-04-05 | 太原理工大学 | Contamination-preventing micro-resistance slow-closing check valve and industrial drainage system |
-
2015
- 2015-09-15 CN CN201520714219.8U patent/CN204922108U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018058364A1 (en) * | 2016-09-28 | 2018-04-05 | 太原理工大学 | Contamination-preventing micro-resistance slow-closing check valve and industrial drainage system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20210915 |