CN218935454U - Remote control pilot-operated stop valve - Google Patents
Remote control pilot-operated stop valve Download PDFInfo
- Publication number
- CN218935454U CN218935454U CN202223503369.3U CN202223503369U CN218935454U CN 218935454 U CN218935454 U CN 218935454U CN 202223503369 U CN202223503369 U CN 202223503369U CN 218935454 U CN218935454 U CN 218935454U
- Authority
- CN
- China
- Prior art keywords
- valve
- magnetic ring
- cylinder
- remote control
- guide cylinder
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 28
- 238000013016 damping Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 15
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The utility model provides a remote control pilot-operated stop valve, and relates to the technical field of stop valves. The valve comprises a valve body, wherein a valve seat and a valve core are arranged in the valve body, a fluid inlet channel and a fluid outlet channel are respectively arranged at two sides of the valve seat, a damping hole is formed in the bottom of the valve core, a valve cover is arranged on the valve body, a valve rod is arranged in the valve cover, a medium cavity is arranged in the valve cover, a sliding cylinder is arranged in the medium cavity in a sliding mode, a guide cylinder is arranged in the sliding cylinder, a lower magnetic ring is arranged in the guide cylinder, an upper magnetic ring is arranged in the guide cylinder in a sliding mode on the upper portion of the lower magnetic ring, two ends of a pilot pipe are respectively communicated with the fluid outlet channel of the valve body and the medium cavity of the valve cover, pilot valves are arranged on the pilot pipe, the bottoms of the sliding cylinder and the guide cylinder are connected with the valve core, the damping hole is communicated with the sliding cylinder, the valve rod enters the sliding cylinder through the medium cavity, and the valve rod is connected with the guide cylinder in a sliding mode, and the end part of the valve rod is connected with the upper magnetic ring.
Description
Technical Field
The utility model relates to the technical field of stop valves, in particular to a remote control pilot type stop valve.
Background
The stop valve is a valve with a valve core moving linearly along the center line of a valve seat, is an indispensable device in a pipeline system of the process industry, and is mainly used for switching on or switching off fluid media in the system. Currently, the stop valve is mainly driven by manual, electric, hydraulic, pneumatic, linkage and the like. Each driving mode has certain disadvantages, such as slow opening and closing in a manual mode, and huge driving mechanisms and high running energy consumption in an electric, pneumatic and hydraulic mode. In recent years, pilot operated shutoff valves have been increasingly used. The stop valve generally adopts the design thought of 'small valve control big valve', and the function of utilizing the 'throttling effect' to generate fluid pressure difference so as to push the main valve to open and close is realized through structural design.
In the prior art, a spring is generally adopted as an important part for controlling the valve core to be opened and closed, however, the spring is easy to produce conditions of spring fatigue, fracture, deformation and the like after long-term use, so that the valve core possibly cannot be opened and closed smoothly on a valve seat, and the problem needs to be solved.
Disclosure of Invention
The utility model aims to develop a remote control pilot-operated stop valve which can avoid spring fatigue caused by long-term use of an internal elastic piece.
The utility model is realized by the following technical scheme:
a remotely controlled pilot operated shut off valve, comprising:
the valve body is internally provided with a valve seat and a valve core, and the two sides of the valve seat are respectively provided with a fluid inlet channel and a fluid outlet channel;
the damping hole is arranged at the bottom of the valve core;
the valve cover is arranged on the valve body, and a valve rod is arranged in the valve cover;
the medium cavity is arranged in the valve cover;
the sliding cylinder is arranged in the medium cavity in a sliding way;
the guide cylinder is arranged in the sliding cylinder;
the lower magnetic ring is arranged in the guide cylinder;
an upper magnetic ring which is arranged in the guide cylinder at the upper part of the lower magnetic ring in a sliding way;
the two ends of the guide pipe are respectively communicated with the fluid outlet channel of the valve body and the medium cavity of the valve cover;
the pilot valve is arranged on the pilot pipe;
the valve rod enters the sliding cylinder through the medium cavity, the valve rod is in sliding connection with the guide cylinder, and the end part of the valve rod is connected with the upper magnetic ring.
Optionally, a sealing block is arranged in the medium cavity, the valve rod penetrates through the sealing block and is sealed in a rotating mode, and the sliding cylinder is arranged in the medium cavity below the sealing block.
Optionally, the pilot pipe is communicated with a medium cavity at the lower part of the sealing block in the valve cover.
Optionally, the sliding cylinder is coaxially and slidably connected with the medium cavity, and the outer wall of the sliding cylinder is in sliding mechanical seal with the inner wall of the medium cavity.
Optionally, the guide cylinder is of a hollow cylindrical structure, and the guide cylinder and the sliding cylinder are coaxially arranged.
Optionally, a pushing seat coaxially connected with the guiding cylinder in a sliding manner is arranged in the guiding cylinder, the upper magnetic ring is arranged at the bottom of the pushing seat, the lower magnetic ring is arranged at the bottom of the guiding cylinder, and the valve rod is connected with the pushing seat.
Optionally, the upper magnetic ring and the lower magnetic ring are both annular and coaxial.
Optionally, the outer diameter of the upper magnetic ring is larger than that of the lower magnetic ring, and the inner diameter of the upper magnetic ring is smaller than that of the lower magnetic ring.
Optionally, the N pole of the upper magnetic ring is downward, and the N pole of the lower magnetic ring is upward.
Optionally, the pilot valve is an electromagnetic ball valve or an electromagnetic gate valve.
The beneficial effects of the utility model are as follows:
the utility model uses the upper magnetic ring and the lower magnetic ring as elastic pieces, and the upper magnetic ring and the lower magnetic ring do no contact and friction movement between the magnetic poles, so that compared with the traditional spring which is used as the elastic pieces, the utility model has no elastic fatigue, spring fracture deformation and other conditions, and avoids the situation that the valve core is opened and closed on the valve seat smoothly.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of the present utility model;
fig. 2 is a view showing the internal structure of the slide.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those skilled in the pertinent art, the described embodiments may be modified in numerous different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the description of the utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description of the utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the utility model discloses a remote control pilot-operated stop valve, which comprises a valve body 1, wherein a valve seat 6 is arranged in the valve body 1, a fluid inlet channel and a fluid outlet channel are respectively arranged at two sides of the valve seat 6, and a valve core 7 is arranged in the valve body 1 above the valve seat 6. The valve body 1 is provided with a valve cover 2, a valve rod 9 in threaded connection with the valve cover 2 is rotationally arranged in the valve cover 2, and a hand wheel 3 coaxially connected with the valve rod 9 is rotationally arranged at the top of the valve cover 2.
A medium cavity 10 coaxial with the valve rod 9 is arranged in the valve cover 2, a sealing block 8 is arranged in the medium cavity 10, and the valve rod 9 penetrates through the sealing block 8 and is sealed in a rotating mode.
A sliding cylinder 11 is arranged in the medium cavity 10 below the sealing block 8, the sliding cylinder 11 is coaxially and slidably connected with the medium cavity 10, and the outer wall of the sliding cylinder 11 is in sliding mechanical seal with the inner wall of the medium cavity 10. The bottom end of the sliding cylinder 11 is connected with the valve core 7 in the valve body 1, and a sealing cavity is formed by the inside of the sliding cylinder 11, the top of the valve core 7 and a medium cavity 10 at the lower part of the sealing block 8. The bottom of the valve core 7 is provided with a damping hole 12, and the damping hole 12 is communicated with the inside of the sliding cylinder 11.
The slide cylinder 11 is internally provided with a guide cylinder 13 coaxial with the slide cylinder, the guide cylinder 13 is of a hollow cylindrical structure, and the bottom end of the guide cylinder 13 is connected with the top of the valve core 7. The guide cylinder 13 is internally provided with a pushing seat 16 which is coaxially and slidably connected with the guide cylinder, the bottom of the pushing seat 16 is provided with an upper magnetic ring 15, and the upper magnetic ring 15 is annular. The bottom of the guide cylinder 13 below the upper magnetic ring 15 is provided with a lower magnetic ring 14, the lower magnetic ring 14 is also circular, and the lower magnetic ring 14 is coaxial with the upper magnetic ring 15. The upper magnetic ring 15 and the lower magnetic ring 14 are both permanent magnets, the outer diameter of the upper magnetic ring 15 is larger than that of the lower magnetic ring 14, the inner diameter of the upper magnetic ring 15 is smaller than that of the lower magnetic ring 14, the N pole of the upper magnetic ring 15 faces downwards, the N pole of the lower magnetic ring 14 faces upwards, and acting force between the upper magnetic ring 15 and the lower magnetic ring 14 serves as spring force.
The bottom end of the valve rod 9 enters the sliding cylinder 11, the bottom end of the valve rod 9 passes through the top of the guide cylinder 13 and is connected with the pushing seat 16, and the valve rod 9 is in sliding sealing with the top of the guide cylinder 13.
A pilot pipe 4 is arranged between the valve cover 2 and the valve body 1, one end of the pilot pipe 4 is communicated with a fluid outlet channel in the valve body 1, the other end of the pilot pipe 4 is communicated with a medium cavity 10 at the lower part of a sealing block 8 in the valve cover 2, a pilot valve 5 is arranged on the pilot pipe 4, and the pilot valve 5 is a remotely controlled electromagnetic valve, such as an electromagnetic ball valve or an electromagnetic gate valve.
Fluid enters the valve seat 6 from the fluid inlet channel of the valve body 1, enters the slide 11 from the damping hole 12 and fills the medium cavity 10. The remote control pilot valve 5 is opened, the pilot pipe 4 is communicated, fluid in the medium cavity 10 enters the fluid outlet channel of the valve body 1 through the pilot pipe 4, the fluid pressure at the lower part of the valve core 7 is larger than the fluid pressure at the upper part of the valve core 7 through the throttling effect of the damping hole 12, the valve core 7 has upward axial force, when the axial force is larger than the resultant force of the acting force between the upper magnetic ring 15 and the lower magnetic ring 14 and the gravity of the valve core 7 and the sliding cylinder 11, the valve core 7 moves upwards, the sliding cylinder 11 slides upwards in the medium cavity 10, a gap is formed between the valve core 7 and the valve seat 6, the valve core 7 is finally maintained at a certain height along with the upward movement of the valve core 7, at this time, part of fluid enters the fluid outlet channel through the valve seat 6 from the fluid inlet channel, and the other part of the fluid enters the fluid outlet channel through the damping hole 12, the sliding cylinder 11, the medium cavity 10 and the pilot pipe 4. The remote control pilot valve 5 is closed, the pilot pipe 4 is not communicated any more, a part of fluid does not flow through the pilot pipe 4 any more, the fluid does not enter the slide cylinder 11 and the medium cavity 10 through the damping hole 12 any more, the throttling effect disappears, the fluid pressure at the upper part and the lower part of the valve core 7 is gradually equal, the acting force between the upper magnetic ring 15 and the lower magnetic ring 14 and the resultant force of the gravity of the valve core 7 and the slide cylinder 11 enable the valve core 7 to descend until the valve core 7 and the valve seat 6 are closed to form effective sealing, and the valve is closed.
The utility model uses the upper magnetic ring 15 and the lower magnetic ring 14 as elastic members, the upper magnetic ring 15 and the lower magnetic ring 14 do no contact and no friction movement between the magnetic poles, and compared with the traditional spring which is used as the elastic member, the utility model has no elastic fatigue, spring fracture deformation and other conditions, and avoids the condition that the valve core 7 is not opened or closed smoothly on the valve seat 6.
The above embodiments are only preferred embodiments of the present utility model, and are not limiting to the technical solutions of the present utility model, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present utility model.
Claims (10)
1. A remote control pilot operated shut-off valve, comprising:
the valve body is internally provided with a valve seat and a valve core, and the two sides of the valve seat are respectively provided with a fluid inlet channel and a fluid outlet channel;
the damping hole is arranged at the bottom of the valve core;
the valve cover is arranged on the valve body, and a valve rod is arranged in the valve cover;
the medium cavity is arranged in the valve cover;
the sliding cylinder is arranged in the medium cavity in a sliding way;
the guide cylinder is arranged in the sliding cylinder;
the lower magnetic ring is arranged in the guide cylinder;
an upper magnetic ring which is arranged in the guide cylinder at the upper part of the lower magnetic ring in a sliding way;
the two ends of the guide pipe are respectively communicated with the fluid outlet channel of the valve body and the medium cavity of the valve cover;
the pilot valve is arranged on the pilot pipe;
the valve rod enters the sliding cylinder through the medium cavity, the valve rod is in sliding connection with the guide cylinder, and the end part of the valve rod is connected with the upper magnetic ring.
2. The remote control pilot operated shutoff valve of claim 1, wherein the media chamber is provided with a sealing block, the valve stem passes through the sealing block and both are rotationally sealed, and the slide is disposed in the media chamber below the sealing block.
3. The remotely controlled pilot-operated shutoff valve of claim 2, wherein the pilot tube communicates with a medium chamber in the lower portion of the seal block within the valve cover.
4. The remote control pilot operated shutoff valve of claim 2, wherein the spool is slidably connected coaxially with the media chamber, and the spool outer wall is slidably mechanically sealed to the media chamber inner wall.
5. The remote control pilot operated shutoff valve of claim 2, wherein the pilot cylinder is a hollow cylindrical structure, and the pilot cylinder is coaxially disposed with the spool.
6. The remote control pilot operated stop valve according to claim 5, wherein a push seat is arranged in the guide cylinder and is coaxially and slidably connected with the guide cylinder, the upper magnetic ring is arranged at the bottom of the push seat, the lower magnetic ring is arranged at the bottom of the guide cylinder, and the valve rod is connected with the push seat.
7. The remote control pilot operated shutoff valve of claim 6, wherein the upper and lower magnet rings are annular and coaxial.
8. The remote control pilot operated shutoff valve of claim 7, wherein the upper magnet ring has an outer diameter greater than the lower magnet ring and an inner diameter less than the lower magnet ring.
9. The remote control pilot operated shutoff valve of claim 7, wherein the upper magnet ring has a downward N-pole and the lower magnet ring has an upward N-pole.
10. The remotely controlled pilot operated shutoff valve of claim 1, wherein the pilot valve is an electromagnetic ball valve or an electromagnetic gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223503369.3U CN218935454U (en) | 2022-12-28 | 2022-12-28 | Remote control pilot-operated stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223503369.3U CN218935454U (en) | 2022-12-28 | 2022-12-28 | Remote control pilot-operated stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218935454U true CN218935454U (en) | 2023-04-28 |
Family
ID=86082402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223503369.3U Active CN218935454U (en) | 2022-12-28 | 2022-12-28 | Remote control pilot-operated stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218935454U (en) |
-
2022
- 2022-12-28 CN CN202223503369.3U patent/CN218935454U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210344334U (en) | Electromagnetic valve | |
| CN205173584U (en) | Magnetism control one way check valve | |
| CN101344185B (en) | Gas magnetic control valve | |
| CN218935454U (en) | Remote control pilot-operated stop valve | |
| CN204533744U (en) | A kind of solenoid valve | |
| CN204512601U (en) | Magnetic switch integral valve | |
| CN105422876A (en) | Novel magnetic control butterfly valve | |
| CN205479620U (en) | Three solenoid valve of air entrainment machine | |
| CN202100748U (en) | Large-diameter sleeve piston hydraulic adjusting valve | |
| RU2315173C1 (en) | Shutoff valve | |
| CN212804248U (en) | Electromagnetic double-acting low-temperature explosion-proof gas emergency cut-off valve | |
| CN214248328U (en) | Corrosion-resistant butterfly valve | |
| CN209943631U (en) | Inner balance type oxygen stop valve | |
| CN203488723U (en) | Fluid stop valve | |
| CN202327286U (en) | Magnetic automatically-closed water nozzle | |
| CN209743602U (en) | Low-flow-resistance multifunctional liquid methane bacterium type valve | |
| CN201269344Y (en) | Gas magnetic-suction cut-off valve | |
| CN105299279A (en) | Pressure balance type electric valve | |
| CN205244487U (en) | Bivalve core solenoid valve | |
| CN203614883U (en) | Baffle valve device | |
| CN111779877B (en) | Electromagnetic valve based on permanent magnet magnetic force opens and shuts | |
| CN105757317B (en) | A kind of high-voltage bidirectional big orifice solenoid valve and control method | |
| CN219734258U (en) | Pneumatic flow control valve | |
| CN216343576U (en) | Normally open solenoid valve for automobile braking system | |
| CN110397770A (en) | A kind of check-valves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |