CN2604524Y - Inserting hydraulic control one-way valve - Google Patents
Inserting hydraulic control one-way valve Download PDFInfo
- Publication number
- CN2604524Y CN2604524Y CN 03240555 CN03240555U CN2604524Y CN 2604524 Y CN2604524 Y CN 2604524Y CN 03240555 CN03240555 CN 03240555 CN 03240555 U CN03240555 U CN 03240555U CN 2604524 Y CN2604524 Y CN 2604524Y
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- Prior art keywords
- valve
- plug
- plunger
- casing
- hydraulic control
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Abstract
The utility model relates to a plug in pilot operated check valve which consists of a valve body and a valve core component one end of which is installed in the valve body and joins a thread in the internal cavity of valve body and the other end of which projects out of the valve body. A plug at the valve core component is screwed into one end of a valve casing projecting out of the valve body. One end of a valve stem is installed the internal cavity of the valve casing and the other end of the valve stem is located outside the valve casing. One end equipped at the valve stem and projecting out of the valve casing is equipped with a plunger. Herein, a stop pin and a lock bolt sleeve are used for fixation between the plunger and the valve stem. At the side of valve stem near the plunger is equipped a valve cone; in a groove at the valve body located at the radial direction of valve core component is fixed a valve pad seat the inside diameter is ship fitted into the plunge by a slip. A valve pad is equipped between the valve casing and the valve pad seat the inside diameter of which is less than the radial size of the stop pin and the lock bolt sleeve. Compared with a current ejector rod type pilot operated check valve, the utility model is characterized by compact structure, high integrity and the valve core component capable to be integrally plugged into the valve body.
Description
Technical field
The utility model has related to a kind of plug-in hydraulic control one-way valve, a kind of hydraulic control one-way valve that has particularly related to hydraulic support in the coal mine fully-mechanized mining support apparatus, this valve is installed on the hydraulic support column, be used to control the pressure of column cavity of resorption, making column and support keep the enabling capabilities to top board of design code, is the key element of hydraulic support.
Background technology
Hydraulic control one-way valve is to keep the hydraulic support service behaviour promptly to one of most important valve class of the enabling capabilities of down-hole top board.Over China development was adopted surplus the comprehensive mechanical coal mining technology 30 of hydraulic support year, hydraulic control one-way valve had experienced from " low discharge, the low-pressure " development course to ", big flow and high pressure ", can satisfy the requirement of China's coal-mine equipment at present basically.But its structural shape is continued to use " post rod type " structure basically, and part one by one is respectively installed in the valve body.There are two bigger shortcomings in this structure: 1) down-hole maintenance difficult, as changing seal or certain consumable accessory, valve must " be torn open greatly greatly and unload ", each part needs to take out from valve body one by one, and part is in the down-hole easy " making dirty ", sometimes also want the pipeline (sebific duct) on the removal bracket, workload is very big, is difficult for guaranteeing cleaning and repair quality; 2) when one way valve was opened in hydraulic control, push rod was pushed valve port open, impacted greatlyyer, and push rod is easily curved easy to break, often occur damaging, so the life-span of valve is shorter.
The utility model content
Goal of the invention of the present utility model is to overcome above-mentioned defective, and a kind of plug-in hydraulic control one-way valve is provided.
A kind of plug-in hydraulic control one-way valve of the present utility model, form by valve body and core assembly, one end of described core assembly is contained in the valve body, connect with the thread in inner cavity of valve body, the other end of core assembly stretches out valve body, described core assembly comprises spacer pin, valve seat cushion, valve pad, valve rod, screw plug, valve casing, valve cone, big spring, little spring, lock sleeve and plunger, screw plug screws in an end of the core assembly valve casing that stretches out valve body, one end of valve rod is contained in the inner chamber of valve casing, the other end is outside the inner chamber of valve casing, end at the valve rod that stretches out valve casing is equipped with plunger, wherein: fix by spacer pin and lock sleeve between plunger and the valve rod, near on the valve rod of plunger one side valve cone is being housed, in the groove of the valve body radially of core assembly, valve seat cushion is housed, the internal diameter of valve seat cushion is sleeved on the plunger slidably, between valve casing and valve seat cushion valve pad is housed, and the radial dimension of spacer pin and lock sleeve is greater than the internal diameter of valve seat cushion.
A kind of plug-in hydraulic control one-way valve of the present utility model, wherein: the conehead of described valve cone is facing to valve pad.
A kind of plug-in hydraulic control one-way valve of the present utility model, wherein: between described screw plug and the boss near the valve rod of screw plug one side spring is housed, this boss matches with the groove of valve casing.
A kind of plug-in hydraulic control one-way valve of the present utility model, wherein: between the groove of groove on the described valve cone and valve casing, little spring is housed.
A kind of plug-in hydraulic control one-way valve of the present utility model, wherein: the connection of described plunger and described valve rod is a spiral marking connection.
A kind of plug-in hydraulic control one-way valve of the present utility model, wherein: described plunger 11 footpaths upwards have through hole, the lower end of described valve rod 5 is having groove along its center line, and an end of described spacer pin 1 passes above-mentioned through hole and groove, and described lock sleeve 10 is locked on this end of spacer pin 1.
A kind of plug-in hydraulic control one-way valve of the present utility model, wherein: described core assembly upwards has a plurality of holes of leading to valve shell cavity in the footpath of stretching out valve body, the opening in hole is equipped with sealing ring.
Compare with existing post rod type hydraulic control one-way valve, plug-in hydraulic control one-way valve compact conformation of the present utility model, integration is good, and core assembly can wholely insert and be installed in the valve body, and during dismounting, core assembly can integral body split out, and the down-hole is easy to maintenance.When needs are changed seal and consumable accessory, only need " core assembly " integral body is split out from valve body, need not dismantle whole valve or dismounting sebific duct.Because " core assembly " weight has only 1/5th of whole valve weight, it is taken to " maintenance station " maintenance that environment is good in aboveground or the underworkings, very convenient, alleviated labor strength greatly, shorten maintenance time, improved operating efficiency.
Promptly controlling a mouthful K in " open check valve " and press, during the column cavity of resorption unloading that is closed, is to push valve cone open by the shaft shoulder of plunger, rather than the one way valve that resembles existing technology backs down valve cone with push rod.Avoid push rod more weak fragile, caused the higher phenomenon of fault rate.In addition, adopted the principle of " hydro-cushion " in the design of valve, Element Design intensity is higher and adopted characteristics such as stainless steel, and the life-span of use improves greatly, and fault significantly reduces.
Description of drawings
Fig. 1 is the schematic diagram of the utility model plug-in hydraulic control one-way valve;
Fig. 2 is that the D of Fig. 1 is to view;
Fig. 3 is the schematic diagram of the core assembly assembling of the utility model plug-in hydraulic control one-way valve;
Fig. 4 is the utility model plug-in hydraulic control one-way valve operating principle schematic diagram.
Fig. 5 is the generalized section that amplify at the E-E place of Fig. 4.
The specific embodiment
Referring to Fig. 1 and Fig. 3, the utility model has related to a kind of plug-in hydraulic control one-way valve, it is made up of valve body 12 and core assembly 13, one end of described core assembly 13 is contained in the valve body 12, connect with the thread in inner cavity of valve body 12, the other end of core assembly 13 stretches out valve body 12, described core assembly 13 comprises spacer pin 1, valve seat cushion 2, valve pad 3, valve rod 5, screw plug 6, valve casing 7, valve cone 9, big spring 4, little spring 8, lock sleeve 10 and plunger 11, screw plug 6 screws in an end of core assembly 13 valve casings 7 that stretch out valve body 12, one end of valve rod 5 is contained in the inner chamber of valve casing 7, the other end is outside the inner chamber of valve casing 7, end at the valve rod 5 that stretches out valve casing 7 is equipped with plunger 11, fixing between plunger 11 and the valve rod 5 by spacer pin 1 and lock sleeve 10, near on the valve rod 5 of plunger 11 1 sides valve cone 9 is being housed, radially with in the groove of valve body 12 valve seat cushion 2 is housed at core assembly 13, the internal diameter of valve seat cushion 2 is sleeved on the plunger 11 slidably, between valve casing 7 and valve seat cushion 2 valve pad 3 is housed, the radial dimension of spacer pin 1 and lock sleeve 10 is greater than the internal diameter of valve seat cushion 2.The conehead of described valve cone 9 is facing to valve pad 3.Between described screw plug 6 and the boss 14 near the valve rod 5 of screw plug 6 one sides spring 4 is housed, this boss 14 matches with the groove of valve casing 7.Between the groove 16 of groove on the described valve cone 9 and valve casing 7, little spring 8 is housed.
As Fig. 3 and shown in Figure 5, plunger 11 is a spiral marking connection with the connection of valve rod 5, and plunger 11 footpaths upwards have through hole, and valve rod 5 lower ends are having groove along its center line, one end of described spacer pin 1 passes above-mentioned through hole and groove, and lock sleeve 10 is locked at spacer pin] on this end of 1.
As shown in figures 1 and 3, core assembly 13 upwards has a plurality of holes 15 of leading to valve casing 7 inner chambers in the footpath of stretching out valve body 12, and the opening in hole 15 is equipped with sealing ring 17, and when in the valve casing 7 excessive air being arranged, the sealing ring 17 that air can back down on the hole 15 overflows.
As Fig. 1, Fig. 3 and shown in Figure 4, during feed liquor, highly pressurised liquid enters from the A mouth, pushes valve cone 9 open, by the B mouth to executive component (column, jack) feed flow; When cutting off A mouth high pressure liquid stream, valve cone 9 resets by little spring 8, and valve cone 9 is sealed the B mouth with valve pad 3 sealing pairs, and this moment, the B mouth pressure kept more than 95% of former pressure, and the B mouth pressure is sealed always in the work.When hydraulic control mouth K input controlled pressure, plunger 11 moves right, and its plunger 11 shaft shoulders are pushed valve cone 9 open, and the pressure liquid of B mouth flows out unloading through valve cone 9 and valve pad 3 openings by the A mouth.
Claims (7)
1. plug-in hydraulic control one-way valve, form by valve body (12) and core assembly (13), one end of described core assembly (13) is contained in the valve body (12), connect with the thread in inner cavity of valve body (12), the other end of core assembly (13) stretches out valve body (12), described core assembly (13) comprises spacer pin (1), valve seat cushion (2), valve pad (3), valve rod (5), screw plug (6), valve casing (7), valve cone (9), big spring (4), little spring (8), lock sleeve (10) and plunger (11), screw plug (6) screws in an end of core assembly (13) valve casing (7) that stretches out valve body (12), one end of valve rod (5) is contained in the inner chamber of valve casing (7), the other end is outside the inner chamber of valve casing (7), end at the valve rod that stretches out valve casing (7) (5) is equipped with plunger (11), it is characterized in that: fixing between plunger (11) and the valve rod (5) by spacer pin (1) and lock sleeve (10), near on the valve rod (5) of plunger (11) one sides valve cone (9) is being housed, in the groove of the valve body radially (12) of core assembly (13), valve seat cushion (2) is housed, the internal diameter of valve seat cushion (2) is sleeved on the plunger (11) slidably, between valve casing (7) and valve seat cushion (2) valve pad (3) is housed, the radial dimension of spacer pin (1) and lock sleeve (10) is greater than the internal diameter of valve seat cushion (2).
2. a kind of plug-in hydraulic control one-way valve as claimed in claim 1 is characterized in that: the conehead of described valve cone (9) is facing to valve pad (3).
3. a kind of plug-in hydraulic control one-way valve as claimed in claim 2 is characterized in that: between described screw plug (6) and the boss (14) near the valve rod (5) of screw plug (6) one sides spring (4) is housed, this boss (14) matches with the groove of valve casing (7).
4. the described a kind of plug-in hydraulic control one-way valve of claim 3 is characterized in that: between the groove (16) of groove on the described valve cone (9) and valve casing (7) little spring (8) is housed.
5. a kind of plug-in hydraulic control one-way valve as claimed in claim 4 is characterized in that: described plunger (11) is a spiral marking connection with the connection of described valve rod (5).
6. the described a kind of plug-in hydraulic control one-way valve of claim 5, it is characterized in that: described plunger (11) footpath upwards has through hole, described valve rod (5) lower end is having groove along its center line, one end of described spacer pin (1) passes above-mentioned through hole and groove, and described lock sleeve (10) is locked on this end of spacer pin (1).
7. as the described a kind of plug-in hydraulic control one-way valve of the arbitrary claim of claim 1-6, it is characterized in that: described core assembly (13) upwards has a plurality of holes (15) of leading to valve casing (7) inner chamber in the footpath of stretching out valve body (12), the opening of hole (15) is equipped with sealing ring (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240555 CN2604524Y (en) | 2003-03-13 | 2003-03-13 | Inserting hydraulic control one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240555 CN2604524Y (en) | 2003-03-13 | 2003-03-13 | Inserting hydraulic control one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2604524Y true CN2604524Y (en) | 2004-02-25 |
Family
ID=34168124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03240555 Expired - Fee Related CN2604524Y (en) | 2003-03-13 | 2003-03-13 | Inserting hydraulic control one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2604524Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829033A (en) * | 2012-09-28 | 2012-12-19 | 南京讯联液压件有限公司 | Plug-in type large-flow check valve |
| CN103498825A (en) * | 2013-10-12 | 2014-01-08 | 上海新跃仪表厂 | Zero leakage inserting installation hydraulic control one-way valve |
| CN107763130A (en) * | 2016-08-18 | 2018-03-06 | 大连精维液压技术有限公司 | Unitary adjustable section postpones nitrogen spring |
-
2003
- 2003-03-13 CN CN 03240555 patent/CN2604524Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829033A (en) * | 2012-09-28 | 2012-12-19 | 南京讯联液压件有限公司 | Plug-in type large-flow check valve |
| CN103498825A (en) * | 2013-10-12 | 2014-01-08 | 上海新跃仪表厂 | Zero leakage inserting installation hydraulic control one-way valve |
| CN103498825B (en) * | 2013-10-12 | 2016-01-06 | 上海新跃仪表厂 | Zero leakage plug-in type pilot controlled check valve |
| CN107763130A (en) * | 2016-08-18 | 2018-03-06 | 大连精维液压技术有限公司 | Unitary adjustable section postpones nitrogen spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |