CN204592438U - The built-in hydraulic shock absorber of a kind of buffer valve - Google Patents
The built-in hydraulic shock absorber of a kind of buffer valve Download PDFInfo
- Publication number
- CN204592438U CN204592438U CN201520168348.1U CN201520168348U CN204592438U CN 204592438 U CN204592438 U CN 204592438U CN 201520168348 U CN201520168348 U CN 201520168348U CN 204592438 U CN204592438 U CN 204592438U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- oil
- built
- shock absorber
- hydraulic shock
- 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.)
- Active
Links
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to the built-in hydraulic shock absorber of a kind of buffer valve, buffer valve comprises valve body and is located at the flap on valve body, this built-in hydraulic shock absorber comprises the oil cylinder connected successively, oil pipe, throttle valve and oil storage tank, described oil cylinder comprises cylinder body and is located at the cylinder bar in cylinder body, described cylinder bar is corresponding with flap to be arranged, described cylinder body is located at the bottom of valve body by bottom, formed for oil pressure chamber and suction air cavity between described cylinder bar and inner chamber of cylinder block, described for oil pressure chamber connected pipes, described outer wall of cylinder block is provided with the resuscitation apparatus being communicated with suction air cavity, small ball is provided with between described throttle valve and oil storage tank.Compared with prior art, the utility model is used for the buffering of buffer valve, has the advantages such as compact structure is reasonable, repair and replacement convenience, long service life.
Description
Technical field
The utility model relates to a kind of hydraulic shock absorber, especially relates to the built-in hydraulic shock absorber of a kind of buffer valve.
Background technique
Buffer check valve generally comprises valve body and is located at the flap on valve body, flap is under the fluid pressure effect of circulation valve body, with flap one end for run-on point activity is rotated, thus carry out liquid check function, if safety check does not arrange buffer structure, then often produce certain water hammer, water pump is worked the mischief, at present, there are problems in the domestic damping device for buffer check valve, do not solved at all.
1) if damping device is built-in hydraulic cylinder formula, i.e. so-called built-in hydraulic cushioning device.This kind of device drives due to the effect by the pressure of pipe-line system own, and when hydraulic pressure is too low, water vat is difficult to drive, and easily causes water hammer or refluence water attack, injures pipe-line system and valve itself.Hydraulic cylinder is immersed in operated by water pressure for a long time, and casing wall and cylinder bar easily produce incrustation scale, affect the driven of hydraulic cylinder, and water hammer also can be caused to affect.
2) if damping device is external oil hydraulic cylinder formula, i.e. so-called external hydraulic shock absorber.This kind of assembly axis is huge to organization volume, for the region of narrow space, is difficult to install.And due to oil cylinder connecting rod structural friction resistance large, need weight to drive and close, but valve opening surface friction drag is larger, reliability is low, opens and closes easily stuck, and maintenance is frequent, and damage by water is large, consumes energy, uneconomical.
The use of above two structure damping devices brings many negative effects to social user, is exactly the appropriate design of damping device as one of key equipment before pipe network and pump.Conventional buffer device often adopts the distortion being tending towards superseded old structure of built-in hydraulic cushioning device and external hydraulic shock absorber, and this structural design not science is unreasonable.Given this, the design of the built-in hydraulic shock absorber of novel special efficacy is one of sharp sword exploring solution problems.
Model utility content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and provide a kind of buffer valve built-in hydraulic shock absorber, be connected with flap mechanical, only play the Slow Close effect of last stroke 10%, there is the advantages such as compact structure is reasonable, repair and replacement convenience, long service life.
The purpose of this utility model can be achieved through the following technical solutions:
The built-in hydraulic shock absorber of a kind of buffer valve, buffer valve comprises valve body and is located at the flap on valve body, this built-in hydraulic shock absorber comprises the oil cylinder connected successively, oil pipe, throttle valve and oil storage tank, described oil cylinder comprises cylinder body and is located at the cylinder bar in cylinder body, described cylinder bar is corresponding with flap to be arranged, described cylinder body is located at the bottom of valve body by bottom, formed for oil pressure chamber and suction air cavity between described cylinder bar and inner chamber of cylinder block, described for oil pressure chamber connected pipes, described outer wall of cylinder block is provided with the resuscitation apparatus being communicated with suction air cavity, small ball is provided with between described throttle valve and oil storage tank.
Described bottom is threaded connection cylinder body, and is bolted the bottom of cylinder body.
Described bottom is provided with the fixing flange of bolt.
Described bottom is provided with anti-turn screw, and described anti-turn screw is fixedly connected with cylinder body.
Described oil storage tank is provided with the pressure gauge for observing oil storage tank medium pressure.
Described oil storage tank is provided with the gas-charging connection for adding medium to oil storage tank.
The top of described oil storage tank inner chamber is air, and bottom is hydraulic oil.
Compared with prior art, the utility model has the following advantages:
1) built-in hydraulic shock absorber, is configured at valve body inner bottom part, and low-profile is hidden, and compact structure is reasonable, and adopt the Placement of bottom, repair and replacement are very convenient;
2) damping device is connected with flap mechanical, only plays the Slow Close effect of last stroke 10%; There is no the frictional damping that external oil gear and flap linkage mechanism bring;
3) damping device first oil-filled rear inflation, oil pressure is by air pressure expansion voltage supply, and with pipeline hydraulic pressure system independence connection, when system water presses through low, this device still can operation in certain limit;
4) damping device is because haveing nothing to do with hydraulic pressure, and oil cylinder inwall and cylinder bar can not produce incrustation scale, and device lifetime is relatively long;
5) pressure gauge is for observing the pressure of oil storage tank medium, can judge whether oil cylinder bar works, and whether stretches out or retracts from pressure tabular value.
Accompanying drawing explanation
Fig. 1 is the utility model scheme of installation in buffer valve;
Fig. 2 is oil cylinder and bottom scheme of installation in the utility model.
In figure: 1, oil cylinder, 2, bottom, 3, oil pipe, 4, throttle valve, 5, small ball, 6, oil storage tank, 7, pressure gauge, 8, gas-charging connection, 9, resuscitation apparatus, 10, anti-turn screw, 11, valve body, 12, flap, 13, screw thread, 14, pneumostome, 15, cylinder bar, 16, bolt, A, confession oil pressure chamber, B, suction air cavity.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.The present embodiment is implemented premised on technical solutions of the utility model, give detailed mode of execution and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1 and Figure 2, the built-in hydraulic shock absorber bottom a kind of buffer valve comprises: oil cylinder 1, bottom 2, oil pipe 3, throttle valve 4, small ball 5, oil storage tank 6, pressure gauge 7, gas-charging connection 8, resuscitation apparatus 9 and anti-turn screw 10.
Oil cylinder 1 comprises cylinder body and is located at the cylinder bar 15 in cylinder body, cylinder body adopts screw thread 13 and bottom 2 to connect, be built in bottom valve body 11, make to acutangulate β bottom oil cylinder 1 and valve body 11, acute angles beta can be designed to 30 ° ~ 50 °, formed for oil pressure chamber A and suction air cavity B between cylinder bar 15 and inner chamber of cylinder block, cylinder bar 15 stretches out because air pressure promotes the effect of oil pressure naturally when valve opening, when flap 12 is closed to stroke about 90% and cylinder bar 15 slide lines of oil cylinder 1, cylinder bar 15 is compressed in suction air cavity B when touching flap 12, confession oil pressure chamber A is Slow Close by oil pressure effect formation damping, the Slow Close completing final 10% clashes into, and reaches the object eliminated water hammer or reduce refluence water attack.
Flange bolt 16 on bottom 2 is fixed on valve body 11, and the internal thread 13 of bottom 2 is connected with oil cylinder 1, and bottom 2 and oil cylinder 1 facilitate integral demounting when keeping in repair and assemble.
Oil pipe 3 front end is connected for oil pressure chamber A with oil cylinder 1 afterbody, and rear end is connected with throttle valve 4.
Throttle valve 4 front end is connected with oil pipe 3, and rear end is connected with small ball 5, and throttle valve 4 is used for regulating oily flow, thus regulates flap 12 to close movement velocity and the time of end 10%.
Small ball 5 front end is connected with throttle valve 4 afterbody, and rear end is connected with oil storage tank 6, and small ball 5 can turn off oil circuit and carry out the activity of overhauling etc.
Oil storage tank 6 front end is connected with small ball 5, the oil-filled semi-gas filled of inner chamber half, pressure conventional control 0.4-0.6MPa.
Pressure gauge 7 is fixed in the middle part of oil storage tank 6, for observe oil storage tank 6 medium pressure oil storage tank 6 in the middle part of, namely observe the pressure of oil storage tank 6 medium, can judge whether the cylinder bar 15 of oil cylinder 1 works, and whether stretches out or retracts from pressure gauge 7 value.
Gas-charging connection 8 is fixed on oil storage tank 6 top, adds medium, i.e. hydraulic oil and air for giving in oil storage tank 6.
Resuscitation apparatus 9 is fixed in the pneumostome 14 of the bottom of bottom 2, and has dust-proof, noise reduction, suction and discharge function, when valve opening, gas in suction air cavity B discharged by resuscitation apparatus 9 under the effect of oil pressure, when close valve time, suction air cavity B flow backwards and flap 12 conduct oneself with dignity effect under pass through resuscitation apparatus 9 suction gas.
Anti-turn screw 10 is fixed on the bottom of bottom 2, withstands oil cylinder 1, is used for preventing the rotation of the oil cylinder 1 being with outside thread 13, namely has anti-rotating function.
To sum up, built-in hydraulic shock absorber, is configured at valve body 11 inner bottom part, and low-profile is hidden, and compact structure is reasonable, and repair and replacement are very convenient.
Claims (7)
1. the built-in hydraulic shock absorber of buffer valve, buffer valve comprises valve body (11) and is located at the flap (12) on valve body (11), this built-in hydraulic shock absorber comprises the oil cylinder (1) connected successively, oil pipe (3), throttle valve (4) and oil storage tank (6), described oil cylinder (1) comprises cylinder body and is located at the cylinder bar (15) in cylinder body, described cylinder bar (15) is corresponding with flap (12) to be arranged, it is characterized in that, described cylinder body is located at the bottom of valve body (11) by bottom (2), formed for oil pressure chamber (A) and suction air cavity (B) between described cylinder bar (15) and inner chamber of cylinder block, described for oil pressure chamber (A) connected pipes (3), described outer wall of cylinder block is provided with the resuscitation apparatus (9) being communicated with suction air cavity (B), small ball (5) is provided with between described throttle valve (4) and oil storage tank (6).
2. the built-in hydraulic shock absorber of a kind of buffer valve according to claim 1, is characterized in that, described bottom (2) connects cylinder body by screw thread (13), and connects the bottom of cylinder body by bolt (16).
3. the built-in hydraulic shock absorber of a kind of buffer valve according to claim 2, is characterized in that, described bottom (2) is provided with the fixing flange of bolt (16).
4. the built-in hydraulic shock absorber of a kind of buffer valve according to claim 2, is characterized in that, described bottom (2) is provided with anti-turn screw (10), and described anti-turn screw (10) is fixedly connected with cylinder body.
5. the built-in hydraulic shock absorber of a kind of buffer valve according to claim 1, is characterized in that, described oil storage tank (6) is provided with the pressure gauge (7) for observing oil storage tank (6) medium pressure.
6. the built-in hydraulic shock absorber of a kind of buffer valve according to claim 1, is characterized in that, described oil storage tank (6) is provided with the gas-charging connection (8) for adding medium to oil storage tank (6).
7. the built-in hydraulic shock absorber of a kind of buffer valve according to claim 1, is characterized in that, the top of described oil storage tank (6) inner chamber is air, and bottom is hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168348.1U CN204592438U (en) | 2015-03-24 | 2015-03-24 | The built-in hydraulic shock absorber of a kind of buffer valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168348.1U CN204592438U (en) | 2015-03-24 | 2015-03-24 | The built-in hydraulic shock absorber of a kind of buffer valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204592438U true CN204592438U (en) | 2015-08-26 |
Family
ID=53928590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520168348.1U Active CN204592438U (en) | 2015-03-24 | 2015-03-24 | The built-in hydraulic shock absorber of a kind of buffer valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204592438U (en) |
-
2015
- 2015-03-24 CN CN201520168348.1U patent/CN204592438U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201884360U (en) | Single-acting two-stage hydraulic cylinder | |
| CN201236788Y (en) | Energy-saving free side-turning type flap valve buffering mechanism | |
| CN102865389B (en) | Water hammer resistant backflow preventer | |
| CN204592438U (en) | The built-in hydraulic shock absorber of a kind of buffer valve | |
| CN201439838U (en) | Mesh cohesive-type control valve | |
| CN201810831U (en) | High-temperature micro-resistance slow closing check valve | |
| CN207583603U (en) | A kind of mechanical oil recovery equipment in oil exploitation | |
| CN203686467U (en) | Water hammer buffering device | |
| CN101514778B (en) | Super large discharge lever float ball type steam drain valve | |
| CN206754583U (en) | A kind of ball valve being conveniently replaceable | |
| CN101963249A (en) | High temperature micro-resistance slow closure check valve | |
| CN103382928A (en) | Hydraulic manual pump | |
| CN201273272Y (en) | Automatic exhausting equipment | |
| CN106195414A (en) | A kind of composite exhaust valve with buffer unit | |
| CN207750048U (en) | The bottom oil-inlet mechanism of integrated drilling machine is repaired in a kind of soil sample | |
| CN207500556U (en) | A kind of check-valves | |
| CN206159618U (en) | Combined type exhaust valve with buffer | |
| CN101315130B (en) | Design method and device of check valve | |
| CN201554635U (en) | Multifunctional self-operated sleeve-type energy dissipating valve | |
| CN203023808U (en) | Leakage-free knocking prevention device for slurry pipeline | |
| CN220600130U (en) | Hydraulic cylinder with buffering function | |
| CN202249904U (en) | Oilfield wellhead with protection function | |
| CN201293115Y (en) | Hemisphere hydraulic check valve | |
| CN201696683U (en) | Built-in buffering check valve | |
| CN203430721U (en) | Hydraulic manual pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 815, de Garden Road, Nanxiang Town, Jiading District, Shanghai Co-patentee after: Shanghai Guanlong Valve Automation Co. Ltd. Patentee after: Guanlong Valve Machinery Co., Ltd., Shanghai Address before: No. 815, de Garden Road, Nanxiang Town, Jiading District, Shanghai Co-patentee before: Shanghai Qirong Machinery Automatic Control Co.,Ltd. Patentee before: Guanlong Valve Machinery Co., Ltd., Shanghai |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tak Road 201802 Shanghai city Jiading District Nanxiang Town, No. 815 Co-patentee after: SHANGHAI GUANLONG VALVE AUTOMATION Co.,Ltd. Patentee after: Shanghai Guanlong Valve Machinery Co., Ltd Address before: Tak Road 201802 Shanghai city Jiading District Nanxiang Town, No. 815 Co-patentee before: SHANGHAI GUANLONG VALVE AUTOMATION Co.,Ltd. Patentee before: Shanghai Guanlong Valve Machinery Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Tak Road 201802 Shanghai city Jiading District Nanxiang Town, No. 815 Patentee after: Shanghai Guanlong valve energy saving equipment Co., Ltd Patentee after: SHANGHAI GUANLONG VALVE AUTOMATION Co.,Ltd. Address before: Tak Road 201802 Shanghai city Jiading District Nanxiang Town, No. 815 Patentee before: Shanghai Guanlong Valve Machinery Co., Ltd Patentee before: SHANGHAI GUANLONG VALVE AUTOMATION Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |