CN217519239U - Valve core structure of water-based pilot valve for mine - Google Patents
Valve core structure of water-based pilot valve for mine Download PDFInfo
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- CN217519239U CN217519239U CN202220629711.5U CN202220629711U CN217519239U CN 217519239 U CN217519239 U CN 217519239U CN 202220629711 U CN202220629711 U CN 202220629711U CN 217519239 U CN217519239 U CN 217519239U
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Abstract
The utility model provides a case structure of mining water base pilot valve, include: a valve seat, the valve seat comprising: one end of the channel is provided with a round opening, and the edge of the round opening is provided with a chamfer surface; the closure member is provided with the sphere on the closure member, and the closure member passes through sphere and chamfer face seal with the passageway and links to each other, the utility model discloses compare the advantage that has with the correlation technique and be: the sealing fit between the closing member and the channel is realized through the arrangement of the chamfer surface; the chamfer surface is easier to process relative to a right angle, so that the overall processing difficulty is effectively reduced, and the overall production cost is reduced; stress concentration problem can be reduced between the chamfer surface and the spherical surface, and stable sealing between the closing member and the channel is ensured.
Description
Technical Field
The utility model relates to a pilot valve technical field especially relates to a case structure of mining water base pilot valve.
Background
The pilot valve is an auxiliary valve used for operating a control mechanism in other valves or elements, the service life and the processing difficulty of the pilot valve are directly influenced by the internal valve core structure of the pilot valve, and therefore the valve core structure of the pilot valve is considered to be improved so as to meet the use requirement.
Disclosure of Invention
The present invention aims at solving at least one of the technical problems in the related art to a certain extent.
Therefore, the utility model aims to provide a case structure of water base pilot valve for mine.
In order to achieve the above object, the utility model provides a valve core structure of mining water base pilot valve, include: a valve seat, the valve seat comprising: the device comprises a channel, a first sealing ring and a second sealing ring, wherein one end of the channel is provided with a round opening, and the edge of the round opening is provided with a chamfer surface; and the closing member is provided with a spherical surface, and the closing member is connected with the channel in a sealing manner through the spherical surface and the chamfered surface.
Optionally, the spherical surface and the chamfered surface are both made of ceramic materials.
Optionally, a gasket is arranged on the chamfer surface, the hardness of the gasket is less than that of the chamfer surface and the spherical surface, and the closing member is connected with the channel in a sealing manner through the spherical surface and the gasket.
Optionally, the roughness of the spherical surface, the chamfer surface and the gasket surface is less than ra0.4.
Optionally, one end of the valve seat is connected with a plug, the closing member is arranged between the valve seat and the plug, an annular groove is formed in the end of the valve seat, an annular flange is arranged on the plug, and the annular flange is in interference fit with the annular groove.
Optionally, one end of the valve seat is connected with a liquid passing sleeve, the closing member is arranged between the valve seat and the liquid passing sleeve, an annular groove is formed in the end of the valve seat, an annular flange is arranged on the liquid passing sleeve, and the annular flange is in interference fit with the annular groove.
After the technical scheme is adopted, compared with the correlation technique, the utility model the advantage that has is:
the sealing fit between the closing member and the channel is realized through the arrangement of the chamfer surface; the chamfer surface is easier to process compared with a right angle, the overall processing difficulty is effectively reduced, and the overall production cost is reduced; stress concentration problem can be reduced between the chamfer surface and the spherical surface, and stable sealing between the closing member and the channel is ensured.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a valve core structure proposed by a related embodiment;
fig. 2 is a schematic structural diagram of a valve core structure according to an embodiment of the present invention;
as shown in the figure: 1. valve seat, 2, closing member, 3, passageway, 4, round mouth, 5, sphere, 6, chamfer, 7, gasket.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
As shown in fig. 1, in a related embodiment, a valve core structure of a water-based pilot valve for a mine comprises a valve seat 1 and a closing member 2, wherein the valve seat 1 comprises a channel 3, one end of the channel 3 is provided with a round opening 4, a spherical surface 5 is arranged on the closing member 2, and the closing member 2 is connected with the channel 3 in a sealing manner through the spherical surface 5 and the edge of the round opening 4.
Wherein, the edge section of the round mouth 4 is a right-angle structure.
It can be understood that the closing member 2 moves towards the channel 3 under the action of external force, the contact between the spherical surface 5 and the edge of the round opening 4 is line contact at the beginning, along with the increase of stress, the deformation between the parts causes the line contact to be changed into surface contact, thus finally realizing the sealing joint of the closing member 2 and the channel 3 of the valve seat 1, breaking the channel 3, and keeping the closing member 2 away from the channel 3 under the action of external force, thus realizing the conduction of the channel 3.
It should be noted that the component exerting an external force on the closing element 2 may be an electromagnet, a spring, a high-pressure liquid, etc.
However, the edge section of the round opening 4 is of a right-angle structure, and the sealing fit between the closing member 2 and the channel 3 of the valve seat 1 needs to be ensured, so that the round opening 4 has high precision requirement during processing, and the problems of high processing difficulty and high production cost are caused integrally;
moreover, the arrangement of the right-angled structure also causes stress concentration to occur during the stress between the spherical surface 5 and the edge of the round mouth 4, which affects the sealing between the closing member 2 and the passage 3 of the valve seat 1.
Therefore, in order to solve the technical problem, as shown in fig. 2, an embodiment of the present invention provides a valve element structure of a water-based pilot valve for mine, including valve seat 1 and closing member 2, valve seat 1 includes channel 3, and the one end of channel 3 is provided with round mouth 4, and the edge of round mouth 4 is provided with chamfer 6, is provided with spherical surface 5 on closing member 2, and closing member 2 and channel 3 are connected through spherical surface 5 and chamfer 6 in a sealing manner.
It can be understood that, by the arrangement of the chamfer surface 6, the sealing fit between the closing member 2 and the channel 3 of the valve seat 1 is realized, and the stable disconnection of the channel 3 is ensured; the chamfer surface 6 is easier to process compared with a right angle, so that the overall processing difficulty is effectively reduced, and the overall production cost is reduced; the stress concentration problem can be relieved between the chamfer surface 6 and the spherical surface 5, and the stable sealing between the closing member 2 and the channel 3 of the valve seat 1 is ensured.
It should be noted that the edges of the spherical surface 5 and the chamfered surface 6 can be made of metal materials, but when the mining water-based pilot valve is used, the metal materials are difficult to overcome the problems that a water-based medium is easy to corrode, the viscosity is low, the thickness of a water film is small, and abrasive wear exists, and the mining water-based pilot valve needs to be frequently opened and closed when in use, so that the service life of the mining water-based pilot valve is short;
and because the contact area between the spherical surface 5 and the edge of the round mouth 4 is small, the local stress is easy to be overlarge, and the stress of the metal material is easy to be relaxed, so that the force exerted on the closing member 2 needs to be strictly controlled, but the force exerted on the closing member 2 is easy to be influenced by the pressure in the cavity, and the closing member 2 needs to be frequently operated, so that the force exerted on the closing member 2 is difficult to control, and finally, the sealing performance between the spherical surface 5 and the edge of the round mouth 4 is poor.
Thus, in some embodiments, the spherical surface 5 and the chamfered surface 6 are both made of a ceramic material.
It can be understood that the ceramic material effectively improves the hardness of the spherical surface 5 and the edge of the round mouth 4, reduces the problem of stress relaxation, and ensures the sealing between the spherical surface 5 and the edge of the round mouth 4;
meanwhile, due to the arrangement of the ceramic material, the edges of the spherical surface 5 and the round opening 4 have the advantages of abrasion resistance, rust resistance, high machining precision, high impact resistance and the like, and the service life of the mining water-based pilot valve is effectively prolonged.
It should be noted that the closing member 2 and the valve seat 1 may be made of ceramic material as a whole, or ceramic material may be only provided at the edges of the spherical surface 5 and the round opening 4 by ceramic metallization bonding, welding, embedding, sleeving and other processes.
In some embodiments, the ceramic material may be one or more of alumina, silicon nitride, and zirconia.
It should be noted that, due to the limitation of the machining process, both the chamfer surface 6 and the spherical surface 5 cannot be absolutely smooth, microscopic ravines are inevitably formed thereon, and when the chamfer surface 6 and the spherical surface 5 are made of ceramic materials with high hardness, the axial thrust required between the chamfer surface 6 and the spherical surface 5 is greater, so that the ravines are filled by material deformation, but the greater axial thrust is difficult to guarantee, so that the sealing between the closure member 2 and the passage 3 of the valve seat 1 is affected.
Thus, as shown in fig. 2, in some embodiments, the chamfered surface 6 is provided with a gasket 7, the gasket 7 has a hardness lower than the hardness of the chamfered surface 6 and the spherical surface 5, and the closing member 2 is sealingly connected to the passage 3 through the spherical surface 5 and the gasket 7.
It can be understood that by providing the gasket 7 with a lower hardness, when the closure member 2 is pressed toward the passages 3, respectively, the gasket 7 has a larger deformation, and the larger deformation can fill the gaps, thereby further ensuring a stable seal between the closure member 2 and the passages 3 of the valve seat 1;
meanwhile, due to the arrangement of the gasket 7, even if the force exerted on the closing member 2 is small, the sealing between the closing member 2 and the channel 3 of the valve seat 1 can be realized, so that the overall processing difficulty is reduced, and the stable sealing between the closing member 2 and the channel 3 of the valve seat 1 is ensured.
In some embodiments, the roughness of the surfaces of the spherical surface 5, the chamfered surface 6 and the gasket 7 is less than Ra0.4.
In some embodiments, the material of the gasket 7 may be stainless steel, polyetheretherketone, or the like.
In some embodiments, a valve hole is arranged in a valve body of the water-based pilot valve for mining, the valve seat 1 is arranged in the valve hole, and a working chamber is arranged in the valve hole and is communicated with the channel 3.
In some embodiments, a plug is connected to one end of the valve seat 1, the closing member 2 is disposed between the valve seat 1 and the plug, an annular groove is disposed at an end of the valve seat 1, and an annular flange is disposed on the plug and is in interference fit with the annular groove.
The closing member 2 is arranged between the plug and the valve seat 1, so that a cavity between the plug and the valve seat 1 can be connected with the channel 3, and the working cavity in the valve hole is matched, so that the connection and disconnection functions of the water-based pilot valve for the mine are ensured;
through the interference fit of the annular flange and the annular groove between the valve seat 1 and the plug, the overall structure of the mining water-based pilot valve is stable, meanwhile, more parts used for limiting are prevented from being arranged, and the overall processing difficulty and production cost of the mining water-based pilot valve are effectively reduced.
In some embodiments, one end of the valve seat 1 is connected with a liquid passing sleeve, the closing member 2 is arranged between the valve seat 1 and the liquid passing sleeve, the end of the valve seat 1 is provided with an annular groove, the liquid passing sleeve is provided with an annular flange, and the annular flange is in interference fit with the annular groove.
The closing member 2 is arranged between the liquid passing sleeve and the valve seat 1, so that a cavity between the liquid passing sleeve and the valve seat 1 can be connected with the channel 3, and the on-off control function of the mining water-based pilot valve is ensured by matching with a working cavity in a valve hole;
the valve seat 1 and the liquid passing sleeve are in interference fit through the annular flange and the annular groove, the whole structure of the mining water-based pilot valve is stable, meanwhile, more parts used for limiting are prevented from being arranged, and the whole processing difficulty and the production cost of the mining water-based pilot valve are effectively reduced.
It should be noted that the valve seat 1 can be simultaneously connected with the plug and the liquid passing sleeve, the plug and the liquid passing sleeve are respectively located at two ends of the valve seat 1, two closing members 2 and two channels 3 are respectively arranged, the two closing members 2 are respectively located in a cavity between the plug and the valve seat 1 and a cavity between the liquid passing sleeve and the valve seat 1, and the two channels 3 are respectively communicated with the cavity between the plug and the valve seat 1 and the cavity between the liquid passing sleeve and the valve seat 1, so that the two passages in the mining water-based pilot valve are switched on and off through the two closing members 2.
It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (6)
1. The utility model provides a case structure of mining water base pilot valve which characterized in that includes:
a valve seat, the valve seat comprising: the device comprises a channel, a first sealing ring and a second sealing ring, wherein one end of the channel is provided with a round opening, and the edge of the round opening is provided with a chamfer surface;
the closing member is provided with a spherical surface, and the closing member is connected with the channel in a sealing mode through the spherical surface and the chamfered surface.
2. The valve core structure of the mining water-based pilot valve according to claim 1, wherein the spherical surface and the chamfered surface are both made of ceramic materials.
3. The valve core structure of the mining water-based pilot valve according to claim 2, wherein a gasket is arranged on the chamfer surface, the hardness of the gasket is less than that of the chamfer surface and the spherical surface, and the closing member is connected with the channel in a sealing manner through the spherical surface and the gasket.
4. The valve core structure of the water-based pilot valve for mines as claimed in claim 3, wherein the roughness of the spherical surface, the chamfered surface and the gasket surface is less than Ra0.4.
5. The valve core structure of the mining water-based pilot valve according to any one of claims 1 to 4, wherein a plug is connected to one end of the valve seat, the closing member is arranged between the valve seat and the plug, an annular groove is arranged at the end of the valve seat, an annular flange is arranged on the plug, and the annular flange is in interference fit with the annular groove.
6. The valve core structure of the water-based pilot valve for the mine according to any one of claims 1 to 4, wherein one end of the valve seat is connected with a liquid passing sleeve, the closing member is arranged between the valve seat and the liquid passing sleeve, an annular groove is arranged at an end of the valve seat, an annular flange is arranged on the liquid passing sleeve, and the annular flange is in interference fit with the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220629711.5U CN217519239U (en) | 2022-03-21 | 2022-03-21 | Valve core structure of water-based pilot valve for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220629711.5U CN217519239U (en) | 2022-03-21 | 2022-03-21 | Valve core structure of water-based pilot valve for mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217519239U true CN217519239U (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220629711.5U Active CN217519239U (en) | 2022-03-21 | 2022-03-21 | Valve core structure of water-based pilot valve for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217519239U (en) |
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2022
- 2022-03-21 CN CN202220629711.5U patent/CN217519239U/en active Active
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