CN203906902U - Damping type check valve - Google Patents
Damping type check valve Download PDFInfo
- Publication number
- CN203906902U CN203906902U CN201420364259.XU CN201420364259U CN203906902U CN 203906902 U CN203906902 U CN 203906902U CN 201420364259 U CN201420364259 U CN 201420364259U CN 203906902 U CN203906902 U CN 203906902U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- described valve
- damping type
- rotating shaft
- 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 - Lifetime
Links
- 238000013016 damping Methods 0.000 title claims abstract description 28
- 238000005266 casting Methods 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a damping type check valve, which comprises a valve body, a valve plate arranged in the valve body and a damping cylinder arranged outside the valve body, wherein the valve plate is rotatably arranged in the valve body through a valve plate shaft; a crank is fixed on one end of the valve plate shaft, extending out of the valve body; the end of the crank, not connected with the valve plate shaft, is hinged with a piston rod of the damping cylinder; a fixing rotating shaft capable of rotating around central axis and arranged on the valve body is fixedly connected with a fixing ring which sleeves and is fixed outside the damping cylinder. According to the damping type check valve, no base needs to be installed; the valve has the advantages that the volume of the valve is reduced and the connecting structure of the damping cylinder and the valve body is high in stability.
Description
Technical field
The utility model relates to a kind of damping type non-return valve, belongs to valve mechanism design field.
Background technique
Damping type non-return valve is in pipe-line system, in order to prevent water hammer, realizes Slow Close in valve closing process, a kind of safety check that guarantees pipeline safety effect impacting to reduce closure member; This valve is generally multiplex in larger caliber, and pressure more greatly, easily occurs in the pipe-line system of water hammer.In this valve using process, when medium produces refluence, valve plate quick closedown, thereby the piston rod that drives damped cylinder carries out compression movement (, piston rod shortens), at valve plate, approach while closing completely due to the damping cavity effect in damped cylinder, valve plate slows down closing velocity, realizes Slow Close, thereby completes overall process.
Existing damping type non-return valve as shown in Figure 1, valve body 1 external stability one mounting base 2, damped cylinder 3 is fixed in mounting base 2.The defect that this damping type non-return valve exists is: during damped cylinder work, back seat resistance is very large, causes the less stable of mounting base and joint structure connecting valve, and mounting base likely can rupture after stressed; The volume of the valve that mounting base also increases is set in addition, on valve body.
Model utility content
Technical problem to be solved in the utility model is mounting base and the joint structure connecting valve poor stability of existing damping type non-return valve, and the problem that mounting base causes valve volume to increase is set, thereby a kind of damping type non-return valve rational in infrastructure is provided.
The technological scheme that realizes the utility model object is:
A damping type non-return valve, the damped cylinder that comprises valve body, is located at the valve plate of described valve inner and is arranged on described valve body outside; Described valve plate is rotated and is arranged on described valve inner by described valve shaft, and one end that described valve shaft extends described valve body outside is fixed with connecting lever, and described connecting lever is hinged away from one end of described valve shaft and the piston rod of described damped cylinder; The fixed rotating shaft that can rotate around self central axis being arranged on described valve body is fixedly connected with the retaining ring being fixed by socket in described damped cylinder outside.
In technique scheme, described valve body is provided with rotary shaft hole, insert in described rotary shaft hole one end that described fixed rotating shaft is connected with described valve body, described fixed rotating shaft by location snap ring disposed thereon be fixed on limiting board on described valve body and match and be connected with described valve body.
In technique scheme, described damped cylinder is cylinder or oil hydraulic cylinder.
In technique scheme, described retaining ring by two semicircle clamping plate by bolt assembly be fixedly connected with form.
In technique scheme, one of them semicircle clamping plate and described fixed rotating shaft are one-body molded.
The utlity model has positive effect: (1) is by adopting structure of the present utility model, during work damped cylinder under the constraint of retaining ring centered by fixed rotating shaft, swing by a small margin, realize damping function, safety check of the present utility model is without mounting base again, there is the valve of reducing volume, the linkage structure stability advantages of higher of damped cylinder and valve body.(2) in safety check of the present utility model, described valve body is provided with rotary shaft hole, insert in described rotary shaft hole one end that described fixed rotating shaft is connected with described valve body, described fixed rotating shaft by location snap ring disposed thereon be fixed on limiting board on described valve body and match and be connected with described valve body; Adopt this structure easily fixed rotating shaft to be rotatably connected on described valve body, and designs simplification, cost saved.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing damping type non-return valve;
Fig. 2 is a kind of front view of damping type non-return valve of the present utility model;
Fig. 3 is the left view of damping type non-return valve shown in 2.
Reference character shown in figure is: 1-valve body; 2-mounting base; 3-damped cylinder; 31-piston rod; 4-valve shaft; 5 connecting levers; 6-fixed rotating shaft; 7-retaining ring; 8-locates snap ring; 9-limiting board.
Embodiment
Below in conjunction with Figure of description, the concrete structure of damping type non-return valve of the present utility model is done to illustrate.
Damping type non-return valve in the present embodiment, as shown in Figures 2 and 3, it comprises valve body 1, is located at the valve plate of described valve body 1 inside and the damped cylinder 3 that is arranged on described valve body outside 1; Described valve plate is rotated and is arranged on described valve body 1 inside by described valve shaft 4, and one end that described valve shaft 4 extends described valve body 1 outside is fixed with connecting lever 5, and described connecting lever 5 is hinged away from one end of described valve shaft 4 and the piston rod 31 of described damped cylinder 3; The fixed rotating shaft 6 that can rotate around self central axis being arranged on described valve body 1 is fixedly connected with the retaining ring 7 being fixed by socket in described damped cylinder 1 outside.By adopting the structure of the present embodiment, described in during work damped cylinder 3 under the constraint of described retaining ring 7 centered by fixed rotating shaft 6, swing by a small margin, realize damping function, the safety check of the present embodiment is without mounting base again, there is the valve of reducing volume, the linkage structure stability advantages of higher of damped cylinder 3 and valve body 1.
As shown in Figure 3, described valve body 1 in the present embodiment is provided with rotary shaft hole, insert in described rotary shaft hole one end that described fixed rotating shaft 6 is connected with described valve body 1, described fixed rotating shaft 6 by location snap ring 8 disposed thereon be fixed on limiting board 9 on described valve body 1 and match and be connected with described valve body 1, the location snap ring 8 being fixed on described fixed rotating shaft 6 is limited between valve body 1 and limiting board 9, thereby just make described fixed rotating shaft 6 rotate around self central axis, and can not come off from described valve body 1; Adopt said structure easily fixed rotating shaft 6 to be rotatably connected on described valve body 1, and designs simplification, cost saved.
Described damped cylinder 3 in the present embodiment adopts hydraulic jack, in practice, also can select cylinder as damped cylinder.
Described retaining ring 7 in the present embodiment by two semicircle clamping plate by bolt assembly be fixedly connected with form; One of them semicircle clamping plate and described fixed rotating shaft 6 are one-body molded.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all mode of executions.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection domain of the present utility model.
Claims (5)
1. a damping type non-return valve, comprises valve body (1), is located at the valve plate of described valve body (1) inside and the damped cylinder (3) that is arranged on described valve body outside (1); Described valve plate is rotated and is arranged on described valve body (1) inside by described valve shaft (4), described valve shaft (4) extends the outside one end of described valve body (1) and is fixed with connecting lever (5), and described connecting lever (5) is hinged away from one end of described valve shaft (4) and the piston rod (31) of described damped cylinder (3); It is characterized in that: the fixed rotating shaft (6) that can rotate around self central axis being arranged on described valve body (1) is fixedly connected with the retaining ring (7) being fixed by socket in described damped cylinder (1) outside.
2. damping type non-return valve according to claim 1, it is characterized in that: described valve body (1) is provided with rotary shaft hole, insert in described rotary shaft hole one end that described fixed rotating shaft (6) is connected with described valve body (1), described fixed rotating shaft (6) by location snap ring (8) disposed thereon be fixed on limiting board (9) on described valve body (1) and match and be connected with described valve body (1).
3. damping type non-return valve according to claim 1 and 2, is characterized in that: described damped cylinder (3) is cylinder or oil hydraulic cylinder.
4. damping type non-return valve according to claim 1 and 2, is characterized in that: described retaining ring (7) by two semicircle clamping plate by bolt assembly be fixedly connected with form.
5. damping type non-return valve according to claim 4, is characterized in that: one of them semicircle clamping plate and described fixed rotating shaft (6) integrally casting moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420364259.XU CN203906902U (en) | 2014-07-02 | 2014-07-02 | Damping type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420364259.XU CN203906902U (en) | 2014-07-02 | 2014-07-02 | Damping type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906902U true CN203906902U (en) | 2014-10-29 |
Family
ID=51781182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420364259.XU Expired - Lifetime CN203906902U (en) | 2014-07-02 | 2014-07-02 | Damping type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481851A (en) * | 2016-11-09 | 2017-03-08 | 嘉善永金金属制品有限公司 | A kind of closing organ using in Equipment for Heating Processing |
-
2014
- 2014-07-02 CN CN201420364259.XU patent/CN203906902U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481851A (en) * | 2016-11-09 | 2017-03-08 | 嘉善永金金属制品有限公司 | A kind of closing organ using in Equipment for Heating Processing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204201188U (en) | A kind of safety check with damping device | |
| CN205298375U (en) | Gas spring damping bumper shock absorber | |
| CN203906902U (en) | Damping type check valve | |
| CN202580150U (en) | Low-pressure-opening swing check valve | |
| CN201696803U (en) | Return type stopper | |
| CN203477346U (en) | Glue hanging sealing double-spring butterfly type stop valve | |
| CN202629289U (en) | Double-cylinder executing mechanism of regulating valve | |
| CN203335950U (en) | Shock-free swing check valve | |
| CN202081763U (en) | Floor spring with simple structure | |
| CN205047553U (en) | Hydraulic pressure mechanism of steel part casting device | |
| CN203383967U (en) | Small wheel hub body paddle operation cylinder moving type device of bulb through-flow unit | |
| CN202580147U (en) | Slow-closure type hydraulic check valve | |
| CN202520683U (en) | Ball joint jacking hydraulic cylinder | |
| CN203477343U (en) | High-strength double-spring butterfly type stop valve | |
| CN201764030U (en) | Check valve with hydraulic cylinder damping | |
| CN202500941U (en) | Single-cylinder hydraulic damper | |
| CN205416271U (en) | Mode locking hydro -cylinder structure | |
| CN204783950U (en) | Hydraulic cylinder buffer | |
| CN202719197U (en) | Switch valve of tower crane jacking system | |
| CN204387353U (en) | The expanding butterfly valve of a kind of heavy caliber | |
| CN203384425U (en) | High-sealing rotary-opening type check valve | |
| CN204677536U (en) | A kind of car lift hydraulic jack throttling buffering device | |
| CN203570744U (en) | One-way buffer hydraulic oil cylinder for special vehicle | |
| CN203200720U (en) | Gate hydraulic locking device | |
| CN102304936A (en) | Water leakage-proof vertical fire cock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |
|
| CX01 | Expiry of patent term |