CN102654203B - Spherical stop valve for underground combined mining working surface of coal mine - Google Patents
Spherical stop valve for underground combined mining working surface of coal mine Download PDFInfo
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- CN102654203B CN102654203B CN201210141068.2A CN201210141068A CN102654203B CN 102654203 B CN102654203 B CN 102654203B CN 201210141068 A CN201210141068 A CN 201210141068A CN 102654203 B CN102654203 B CN 102654203B
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- seal ring
- valve core
- spherical
- valve
- liquid outlet
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- 238000005065 mining Methods 0.000 title claims abstract description 9
- 239000003245 coal Substances 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 230000037361 pathway Effects 0.000 claims description 17
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 2
- 241001672694 Citrus reticulata Species 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Check Valves (AREA)
Abstract
The invention discloses a spherical stop valve for an underground combined mining working surface of a coal mine. The spherical stop valve comprises a valve body assembly, a spherical valve core and a rotating mechanism, wherein a hydraulic channel is arranged in the valve body assembly; the spherical valve core is arranged in the valve body assembly; the spherical valve core is connected with the rotating mechanism; a sealing base is arranged between the valve body assembly and the spherical valve core; the hydraulic channel is divided into a liquid inlet channel and a liquid outlet channel; the liquid inlet channel is located on the front face of the spherical valve core; the liquid outlet channel is located on the back face of the spherical valve core; a branch channel is arranged between the liquid inlet channel and the liquid outlet channel; and a pilot valve is arranged on the branch channel. The spherical stop valve disclosed by the invention has the advantages as follows: the pilot valve is opened at first, so that an oil pressure medium in the liquid inlet channel flows from the branch channel to the liquid outlet channel until an oil pressure in the liquid inlet channel is essentially equal to an oil pressure in the liquid outlet channel; and then a handle is rotated to open the spherical stop valve, so that the oil pressure medium can smoothly flow through the stop valve. Compared with the traditional stop valve, the spherical stop valve has the advantages that the handle is wrenched in a more labor-saving manner.
Description
Technical field
The present invention relates to a kind of ball check valve, especially relate to a kind of ball check valve for colliery down-hole combined mining working.
Background technique
On the hydraulic tubing of colliery down-hole combined mining working, conventionally adopt ball check valve, due to the relation of working environment, hydraulic pressure in hydraulic tubing is very high, when needs are opened ball check valve, because the pressure difference at ball check valve two ends is 35.1MP, directly with the dwang that hand is pulled ball check valve, relatively require great effort, even there will be driving lever by the situation of switch out.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of ball check valve for colliery down-hole combined mining working, the spherical valve core both sides that are positioned at hydraulic channel exist in the situation of larger pressure difference, available pilot valve release of pressure, and then pull dwang, more laborsaving.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of ball check valve for colliery down-hole combined mining working, comprise valve component, spherical valve core and rotating mechanism, in described valve component, be provided with hydraulic channel, described spherical valve core is arranged in described valve component, described spherical valve core is connected with described rotating mechanism, between described valve component and described spherical valve core, be provided with sealing seat, described hydraulic channel is divided into feed pathway and liquid outlet channel, described feed pathway be positioned at spherical valve core before, described liquid outlet channel be positioned at spherical valve core after, between feed pathway described in it is characterized in that and described liquid outlet channel, be provided with bypass passage, on described bypass passage, be provided with pilot valve.
Described sealing seat comprises the first seal ring and the second seal ring, the first seal ring is near feed pathway, the second seal ring is near liquid outlet channel, described spherical valve core is arranged between described the first seal ring and the second seal ring, the contacting part of the entrance of bypass passage between the first seal ring and spherical valve core, the outlet of bypass passage communicates with liquid outlet channel.When spherical valve core is subject to after oil pressure, spherical valve core has minute movement backward, the second seal ring compressive deformation, there is narrow and small gap in the surface of contact of the first seal ring and spherical valve core, oil pressure medium enters in bypass passage from narrow and small gap, after pilot valve is opened, oil pressure medium just can enter in liquid outlet channel.
Described valve component comprises body, joint and connection block, described joint is fixed on the front end of body, described connection block is fixed on the rear end of body, described feed pathway is the first through hole in joint, described liquid outlet channel is the second through hole in connection block, in described spherical valve core, be provided with third through-hole, the first described seal ring is arranged on the rear end of joint, and the second described seal ring is arranged on the front end of connection block.
Described rotating mechanism comprises valve rod and handle, and described valve rod is connected with spherical valve core, and described handle and valve rod are fixed.
On described valve rod, be fixed with spacing shim, on described body, be provided with round pin, described spacing shim and described round pin cooperatively interact.Spacing shim and round pin cooperatively interact, and play the amplitude that handle rotates of adjusting.
Described bypass passage comprises the L shaped passage being arranged on body, described pilot valve comprises that block, pilot handle and head have the piston rod of the conical surface, block is fixed by screws on body, piston rod is through described block, described pilot handle is fixed on the afterbody of piston rod, and the head of described piston rod can stretch into the corner of L shaped passage.By the advancing or retreat of piston mandarin orange, reach the object that bypass passage is closed or opened.
Described joint front end is stamped plastic cap, and it is stifled that described connection block rear end is provided with plastics.Prevent that dust or aqueous vapor from entering into the inside of stop valve, avoid stopping up or getting rusty.
The first described seal ring is identical with the structure of the second seal ring, the outside of the first described seal ring is plane, the inner side of the first described seal ring is the conical surface, described plane and the laminating of the rear end of joint, and the described conical surface contacts with the outer surface of described spherical valve core.The setting of the conical surface, can make spherical valve core separation with the first seal ring under pressured state, forms gap.If the inner side of seal ring is sphere, seal ring and sphere are fitted completely, because resistance can make spherical valve core rotate or cannot form gap.
Compared with prior art, the invention has the advantages that when ball check valve is under closed condition, the spherical valve core both sides that are positioned at hydraulic channel exist in the situation of larger pressure difference, conventionally pressure difference is 35.1MP, spherical valve core pressurized in ball check valve is very large, first open pilot valve, make the oil pressure medium in feed pathway flow to liquid outlet channel from bypass passage, make the oil pressure in oil pressure and the liquid outlet channel in feed pathway basic identical, now handle with sleeve again, ball check valve is opened, made oil pressure medium can flow through smoothly stop valve.Compare traditional stop valve, pull handle more laborsaving.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present invention;
Fig. 2 is partial sectional view of the present invention (pilot valve);
Fig. 3 is the structural drawing (spherical valve core close) of the present invention under oil pressure;
Fig. 4 is the enlarged view of A in Fig. 3;
Fig. 5 is the stereogram of the first seal ring or the second seal ring;
Fig. 6 is the sectional view of the first seal ring or the second seal ring.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
A kind of ball check valve for colliery down-hole combined mining working, comprise valve component, spherical valve core 1 and rotating mechanism, in valve component, be provided with hydraulic channel, spherical valve core 1 is arranged in valve component, spherical valve core 1 is connected with rotating mechanism, between valve component and spherical valve core 1, be provided with sealing seat, hydraulic channel is divided into feed pathway 2 and liquid outlet channel 3, feed pathway 1 be positioned at spherical valve core 1 before, liquid outlet channel 3 be positioned at spherical valve core 1 after, between feed pathway 2 and liquid outlet channel 3, be provided with bypass passage 4, on bypass passage 4, be provided with pilot valve 5.
Sealing seat comprises the first seal ring 61 and the second seal ring 62, the first seal ring 61 is near feed pathway 2, the second seal ring 62 is near liquid outlet channel 3, spherical valve core 1 is arranged between the first seal ring 61 and the second seal ring 62, the contacting part of the entrance 41 of bypass passage 4 between the first seal ring 61 and spherical valve core 1, the outlet 42 of bypass passage 4 communicates with liquid outlet channel 3.
Valve component comprises body 71, joint 72 and connection block 73, joint 72 is fixed on the front end of body 71, connection block 73 is fixed on the rear end of body 71, feed pathway 2 is the first through hole in joint 72, liquid outlet channel 3 is the second through hole in connection block 73, in spherical valve core 1, be provided with the rear end that third through-hole 11, the first seal rings 61 are arranged on joint 72, the second seal ring 62 is arranged on the front end of connection block 73.
Rotating mechanism comprises valve rod 81 and handle 82, and valve rod 81 is connected with spherical valve core 1, and handle 82 is fixing with valve rod 81.
On valve rod 81, be fixed with spacing shim 83, be provided with round pin 74 on body 71, spacing shim 83 cooperatively interacts with round pin 74.
Joint 72 front ends are stamped plastic cap 721, and connection block 73 rear ends are provided with plastics stifled 731.
The first seal ring 61 is identical with the structure of the second seal ring 62, and the outside of the first seal ring 61 is that the inner side of plane 611, the first seal rings 61 is the conical surface 612, and plane 611 is fitted with the rear end of joint 72, and the conical surface 612 contacts with the outer surface of spherical valve core 1.As shown in Figure 3, when spherical valve core 1 is subject to after oil pressure, spherical valve core 1 has minute movement backward, the second seal ring 62 compressive deformations, there is narrow and small gap 101 with the surface of contact of spherical valve core 1 in the first seal ring 61, oil pressure medium enters in bypass passage 4 from narrow and small gap 101, and after pilot valve 5 is opened, oil pressure medium 102 just can enter in liquid outlet channel 3.
Claims (1)
1. the ball check valve for colliery down-hole combined mining working, comprise valve component, spherical valve core and rotating mechanism, in described valve component, be provided with hydraulic channel, described spherical valve core is arranged in described valve component, described spherical valve core is connected with described rotating mechanism, between described valve component and described spherical valve core, be provided with sealing seat, described hydraulic channel is divided into feed pathway and liquid outlet channel, described feed pathway be positioned at spherical valve core before, described liquid outlet channel be positioned at spherical valve core after, between feed pathway described in it is characterized in that and described liquid outlet channel, be provided with bypass passage, on described bypass passage, be provided with pilot valve,
Described sealing seat comprises the first seal ring and the second seal ring, the first seal ring is near feed pathway, the second seal ring is near liquid outlet channel, described spherical valve core is arranged between described the first seal ring and the second seal ring, the contacting part of the entrance of bypass passage between the first seal ring and spherical valve core, the outlet of bypass passage communicates with liquid outlet channel;
Described valve component comprises body, joint and connection block, described joint is fixed on the front end of body, described connection block is fixed on the rear end of body, described feed pathway is the first through hole in joint, described liquid outlet channel is the second through hole in connection block, in described spherical valve core, be provided with third through-hole, the first described seal ring is arranged on the rear end of joint, and the second described seal ring is arranged on the front end of connection block;
Described rotating mechanism comprises valve rod and handle, and described valve rod is connected with spherical valve core, and described handle and valve rod are fixed;
On described valve rod, be fixed with spacing shim, on described body, be provided with round pin, described spacing shim and described round pin cooperatively interact;
Described bypass passage comprises the L shaped passage being arranged on body, described pilot valve comprises that block, pilot handle and head have the piston rod of the conical surface, block is fixed by screws on body, piston rod is through described block, described pilot handle is fixed on the afterbody of piston rod, and the head of described piston rod can stretch into the corner of L shaped passage;
Described joint front end is stamped plastic cap, and it is stifled that described connection block rear end is provided with plastics;
The first described seal ring is identical with the structure of the second seal ring, the outside of the first described seal ring is plane, the inner side of the first described seal ring is the conical surface, described plane and the laminating of the rear end of joint, and the described conical surface contacts with the outer surface of described spherical valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210141068.2A CN102654203B (en) | 2012-05-08 | 2012-05-08 | Spherical stop valve for underground combined mining working surface of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210141068.2A CN102654203B (en) | 2012-05-08 | 2012-05-08 | Spherical stop valve for underground combined mining working surface of coal mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102654203A CN102654203A (en) | 2012-09-05 |
| CN102654203B true CN102654203B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210141068.2A Active CN102654203B (en) | 2012-05-08 | 2012-05-08 | Spherical stop valve for underground combined mining working surface of coal mine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102654203B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927309A (en) * | 2012-10-16 | 2013-02-13 | 丰隆液压有限公司 | Spherical shut-off valve |
| CN111980679A (en) * | 2020-08-28 | 2020-11-24 | 西安石油大学 | A kind of drilling fluid level monitor conversion device and its fluid level monitoring method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3776506A (en) * | 1971-12-15 | 1973-12-04 | Acf Ind Inc | Valve structure having fluid pressure actuated sealing members |
| CN101629640A (en) * | 2009-08-12 | 2010-01-20 | 昆山维萨阀门有限公司 | Pilot-operated type hard seal fixing ball valve |
| CN201526698U (en) * | 2009-11-03 | 2010-07-14 | 宁波长壁流体连接件有限公司 | Ball type stop valve |
| CN201731098U (en) * | 2010-05-25 | 2011-02-02 | 宁波长壁流体动力科技有限公司 | Ball check valve |
| CN202580099U (en) * | 2012-05-08 | 2012-12-05 | 宁波长壁流体动力科技有限公司 | Globe stop valve for underground comprehensive mechanized coal mining faces |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2653004A (en) * | 1942-10-07 | 1953-09-22 | Von Roll Ag | Pivoted stop valve |
| US3421733A (en) * | 1967-10-16 | 1969-01-14 | Acf Ind Inc | Valve having pressure actuated seats |
| US3749357A (en) * | 1972-04-07 | 1973-07-31 | Acf Ind Inc | Valve structure having fluid pressure actuated seats |
| US3848849A (en) * | 1973-06-29 | 1974-11-19 | Vapor Corp | Fluid control valve |
-
2012
- 2012-05-08 CN CN201210141068.2A patent/CN102654203B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3776506A (en) * | 1971-12-15 | 1973-12-04 | Acf Ind Inc | Valve structure having fluid pressure actuated sealing members |
| CN101629640A (en) * | 2009-08-12 | 2010-01-20 | 昆山维萨阀门有限公司 | Pilot-operated type hard seal fixing ball valve |
| CN201526698U (en) * | 2009-11-03 | 2010-07-14 | 宁波长壁流体连接件有限公司 | Ball type stop valve |
| CN201731098U (en) * | 2010-05-25 | 2011-02-02 | 宁波长壁流体动力科技有限公司 | Ball check valve |
| CN202580099U (en) * | 2012-05-08 | 2012-12-05 | 宁波长壁流体动力科技有限公司 | Globe stop valve for underground comprehensive mechanized coal mining faces |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102654203A (en) | 2012-09-05 |
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