CN212203323U - Normally closed emergency cut-off electromagnetic valve - Google Patents
Normally closed emergency cut-off electromagnetic valve Download PDFInfo
- Publication number
- CN212203323U CN212203323U CN202020736727.7U CN202020736727U CN212203323U CN 212203323 U CN212203323 U CN 212203323U CN 202020736727 U CN202020736727 U CN 202020736727U CN 212203323 U CN212203323 U CN 212203323U
- Authority
- CN
- China
- Prior art keywords
- piston
- valve body
- valve
- magnetic
- pull rod
- 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
Images
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a normally closed emergency cut-off solenoid valve, include valve body, coil, no magnet tube, move iron core, pull rod and piston. The valve comprises a valve body and is characterized in that a valve air nozzle is arranged in the valve body, a middle cover is arranged above the valve body, a coil is fixedly arranged outside a non-magnetic pipe, and the lower end of the non-magnetic pipe is fixedly connected with the middle cover of the valve body. The piston is movably arranged at a valve air nozzle in the valve body, the upper end of the piston penetrates through the middle cover to be fixedly connected with a movable iron core arranged in the non-magnetic pipe, and a spring is sleeved on the piston. The pull rod is movably arranged in the non-magnetic pipe, the upper end of the pull rod protrudes out of the top of the non-magnetic pipe in a protruding mode, and the lower end of the pull rod is fixedly connected with the movable iron core. The utility model discloses a coil circular telegram keeps the battery valve to open, and the solenoid valve is closed in the outage, has avoided the condition that the solenoid valve can not be closed to the power under the emergency condition, has improved the safe in utilization of pipeline.
Description
Technical Field
The utility model relates to an automatic control flow pipeline is with promptly cutting off the solenoid valve, concretely relates to a normally closed promptly cuts off solenoid valve that is used for not having the power and can both close.
Background
In the emergency cut-off electromagnetic valve in the prior art, a piston is pulled upwards through a pull rod manually, and a positioning pin is arranged on the side surface of the valve to lock the pull rod, so that the valve is in a normally open state. In emergency, when the valve needs to be closed, the existing emergency cut-off solenoid valve needs to be closed only when being powered on, however, under the condition that no power supply exists, such as fire disaster, and the like, the valve cannot be closed, so that a novel normally closed emergency cut-off solenoid valve is urgently needed to be provided, and the electromagnetic valve can be used for emergency cut-off under the condition that no power supply exists.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned not enough, the utility model aims to provide a normally closed promptly cuts off solenoid valve, it keeps the battery valve to open through the coil circular telegram, and the solenoid valve is closed in the outage, has avoided not having the condition that the power can not close the solenoid valve under the emergency situation, has improved the safe in utilization of pipeline.
In order to achieve the above purpose, the utility model provides a technical scheme is:
the utility model provides a normally closed emergency cut-off solenoid valve, includes valve body, coil, no magnet tube, moves iron core, pull rod and piston, establish the valve gas in the valve body and chew, the top of valve body is equipped with well lid, the coil fix install in outside no magnet tube, and the lower extreme of no magnet tube with the well lid fixed connection of valve body, piston activity install in valve gas in the valve body chews the department, and the upper end of piston is passed well lid and is set up in the no magnet tube and move iron core fixed connection, and the cover is equipped with the spring on the piston, pull rod activity is installed in no magnet tube, the protruding top of no magnet tube that stretches out in upper end, the lower extreme with move iron core fixed connection.
Preferably, the piston comprises a piston rod, a piston frame and a piston gasket, the piston frame is arranged in the middle of the piston rod, and the piston gasket is arranged on the lower surface of the piston frame; and a limiting pipe is arranged below the valve air nozzle of the valve body, and the lower end of the piston rod is movably arranged in the limiting pipe.
Preferably, the upper end and the lower end of the spring respectively abut against the space between the middle cover and the piston frame.
Preferably, the middle cover is fixedly arranged at the upper end of the valve body through bolts, a valve body sealing ring is arranged between the middle cover and the valve body, and an interlayer sealing ring and an interlayer sealing gasket are arranged at the joint of the piston rod and the middle cover.
Preferably, the lower end of the non-magnetic pipe is fixed on the middle cover, the upper end and the lower end of the movable iron core are respectively fixed on the pull rod and the piston rod, and the inner top wall of the non-magnetic pipe forms a magnetic combination surface attracted with the movable iron core.
Preferably, a stroke distance is formed between the upper end of the movable iron core and the magnetic combination surface, and the stroke distance is smaller than the length of the lower end of the piston rod in the limiting pipe.
Preferably, the upper end of the pull rod protrudes out of the top end of the non-magnetic pipe and is connected with a handle, and a dustproof sealing ring and a dustproof nut are sequentially arranged at the joint of the pull rod and the upper end of the non-magnetic pipe.
Preferably, the coil sleeve is arranged outside the non-magnetic pipe, the upper end of the coil sleeve is fixed through a coil nut, and the end part of the joint of the coil and the non-magnetic pipe is provided with a sealing ring.
The utility model has the advantages that:
1. the utility model discloses a with the coil circular telegram, will move iron core and piston upwards stimulate and open the solenoid valve with the magnetic face actuation that closes of no magnet tube, when promptly closing, only need close the coil power, the piston leans on the elastic force of spring and moves iron core and self power downstream until closing the valve air nozzle, and the solenoid valve is in the closed condition, consequently, the utility model discloses close the solenoid valve design for the outage with original circular telegram and close the solenoid valve, avoided the circumstances that the outage can not be closed under the emergency, improved the security that the solenoid valve used, simultaneously because coil power is little, the long-time circular telegram keeps opening state energy consumption not high.
2. In the utility model, a valve body sealing ring is arranged between the middle cover and the valve body, and an interlayer sealing ring and an interlayer sealing gasket are arranged at the joint of the piston rod and the middle cover; a dustproof sealing ring and a dustproof nut are sequentially arranged at the joint of the pull rod and the upper end of the non-magnetic pipe; the end part of the joint of the coil and the non-magnetic pipe is provided with the sealing ring, and by adopting the sealing structure design, harmful media can be effectively prevented from entering the interior of the coil and the magnetic combined surface, the coil can not react with the media after being electrified and heated for a long time, and the safety of the pipeline is improved.
The present invention will be further explained with reference to the drawings and the embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a normally closed emergency cut-off solenoid valve of the present invention;
fig. 2 is an enlarged view of the piston shown in fig. 1.
The reference numerals in the drawings are explained below.
The valve comprises a valve body 1, a valve air nozzle 1a, a middle cover 1b, a limiting pipe 1c, a valve body sealing ring 1d, an interlayer sealing ring 1e, an interlayer sealing gasket 1f, a coil 2, a non-magnetic pipe 3, a magnetic surface 3a, a movable iron core 4, a pull rod 5, a handle 5a, a piston 6, a piston rod 6a, a piston frame 6b, a piston gasket 6c, a spring 7, a dustproof sealing ring 8, a dustproof nut 9 and a coil nut 10.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, a normally closed emergency cut-off solenoid valve includes a valve body 1, a coil 2, a non-magnetic tube 3, a movable iron core 4, a pull rod 5 and a piston 6. The valve comprises a valve body 1 and is characterized in that a valve air nozzle 1a is arranged in the valve body 1, a middle cover 1b is arranged above the valve body 1, a coil 2 is fixedly arranged outside a non-magnetic pipe 3, and the lower end of the non-magnetic pipe 3 is fixedly connected with the middle cover 1b of the valve body 1. The piston 6 is movably arranged at a valve air nozzle 1a in the valve body 1, the upper end of the piston 6 penetrates through the middle cover 1b to be fixedly connected with a movable iron core 4 arranged in the non-magnetic tube 3, a spring 7 is sleeved on the piston 6, the pull rod 5 is movably arranged in the non-magnetic tube 3, the upper end of the pull rod protrudes out of the top of the non-magnetic tube 3, and the lower end of the pull rod is fixedly connected with the movable iron core 4.
Referring to fig. 2, specifically, the piston 6 includes a piston rod 6a, a piston frame 6b and a piston washer 6c, the piston frame 6b is installed in the middle of the piston rod 6a, and the piston washer 6c is disposed on the lower surface of the piston frame 6 b; a limiting pipe 1c is arranged below a valve air nozzle 1a of the valve body 1, and the lower end of the piston rod 6a is movably arranged in the limiting pipe 1c and used for limiting the piston 6 in the up-and-down reciprocating process.
Further, spring 7's upper and lower both ends support respectively in between well lid 1b and the piston frame 6b, the utility model discloses a this structural design, when the solenoid valve is opened to 6 upward movements of piston, compression spring 7, when the outage, piston 6 is closed to the solenoid valve owing to dead weight and spring 7's elastic force downstream.
The lower end of the non-magnetic pipe 3 is fixed on the middle cover 1b, the upper end and the lower end of the movable iron core 4 are respectively fixed on the pull rod 5 and the piston rod 6a, the inner top wall of the non-magnetic pipe 3 forms a magnetic combination surface 3a attracted with the movable iron core 4, and when the coil 2 is electrified, the movable iron core 4 is attracted with the magnetic combination surface 3a of the non-magnetic pipe 3 to keep the electromagnetic valve in an open state.
Furthermore, a stroke distance is formed between the upper end of the movable iron core 4 and the magnetic combined surface 3a, and the stroke distance is smaller than the length of the lower end of the piston rod 6a in the limiting tube 1c, so that the movable iron core 4 and the piston 6 can not be separated from the limiting tube 1c in the up-and-down reciprocating motion process.
In this embodiment, the middle cover 1b is fixedly installed at the upper end of the valve body 1 through bolts, a valve body sealing ring 1d is arranged between the middle cover 1b and the valve body 1, and an interlayer sealing ring 1e and an interlayer sealing gasket 1f are arranged at the joint of the piston rod 6a and the middle cover 1 b. The upper end of the pull rod 5 protrudes out of the top end of the non-magnetic pipe 3 and is connected with a handle 5a, and a dustproof sealing ring 8 and a dustproof nut 9 are sequentially arranged at the joint of the pull rod 5 and the upper end of the non-magnetic pipe 3. The coil 2 is sleeved outside the non-magnetic pipe 3, the upper end of the coil is fixed through a coil nut 10, and the end part of the joint of the coil 2 and the non-magnetic pipe 3 is provided with a sealing ring.
By adopting the sealing structure design, harmful media can be effectively prevented from entering the interior of the coil 2 and the magnetic joint surface, the coil 2 cannot generate any reaction with the media after being electrified and heated for a long time, and the safety of the pipeline is improved.
The utility model discloses the theory of operation:
when the electromagnetic valve needs to be opened, the coil 2 is electrified, the handle 5a is pulled upwards manually to drive the pull rod 5, the movable iron core 4 and the piston 6 to move upwards until the upper end face of the movable iron core 4 is attracted with the magnetic combination face 3a in the non-magnetic pipe 3, the movable iron core 4 is kept by magnetic force generated by the fact that the coil 2 is electrified and the magnetic combination of the non-magnetic pipe 3, meanwhile, the gravity of the movable iron core 4 and the piston 6 and the elastic force of the spring 7 are overcome, at the moment, the piston 6 is separated from the valve air nozzle 1a, the electromagnetic valve is in an opening state, and the electromagnetic valve completes opening action.
When the electromagnetic valve needs to be closed in an emergency, the power supply of the coil 2 is closed to enable the electromagnetic valve to be in a power-off state, the piston 6 moves downwards by means of the elastic force of the spring 7 and the power of the movable iron core 4 and the power of the piston until the valve air nozzle 1a is closed, and the electromagnetic valve is in a closed state at the moment.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used herein, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being defined by the following claims and their equivalents.
Claims (8)
1. A normally closed emergency cut-off solenoid valve characterized in that: comprises a valve body (1), a coil (2), a non-magnetic tube (3), a movable iron core (4), a pull rod (5) and a piston (6), a valve air nozzle (1a) is arranged in the valve body (1), a middle cover (1b) is arranged above the valve body (1), the coil (2) is fixedly arranged outside the non-magnetic pipe (3), the lower end of the non-magnetic pipe (3) is fixedly connected with a middle cover (1b) of the valve body (1), the piston (6) is movably arranged at the valve air nozzle (1a) in the valve body (1), the upper end of the piston (6) passes through the middle cover (1b) and is fixedly connected with the movable iron core (4) arranged in the non-magnetic pipe (3), and the piston (6) is sleeved with a spring (7), the pull rod (5) is movably arranged in the non-magnetic tube (3), the upper end of the pull rod protrudes out of the top of the non-magnetic tube (3), and the lower end of the pull rod is fixedly connected with the movable iron core (4).
2. A normally closed slam shut solenoid valve as defined in claim 1 wherein: the piston (6) comprises a piston rod (6a), a piston frame (6b) and a piston gasket (6c), the piston frame (6b) is arranged in the middle of the piston rod (6a), and the piston gasket (6c) is arranged on the lower surface of the piston frame (6 b); a limiting pipe (1c) is arranged below a valve air nozzle (1a) of the valve body (1), and the lower end of the piston rod (6a) is movably arranged in the limiting pipe (1 c).
3. A normally closed slam shut solenoid valve as defined in claim 2 wherein: the upper end and the lower end of the spring (7) respectively abut against the middle cover (1b) and the piston frame (6 b).
4. A normally closed slam shut solenoid valve as defined in claim 2 wherein: well lid (1b) through bolt fastening install in the upper end of valve body (1), and be equipped with valve body sealing washer (1d) between well lid (1b) and valve body (1), piston rod (6a) with well lid (1b) junction is equipped with interlayer sealing washer (1e) and interlayer sealed pad (1 f).
5. A normally closed slam shut solenoid valve as defined in claim 2 wherein: the lower end of the non-magnetic pipe (3) is fixed on the middle cover (1b), the upper end and the lower end of the movable iron core (4) are respectively fixed on the pull rod (5) and the piston rod (6a), and the inner top wall of the non-magnetic pipe (3) forms a magnetic combination surface (3a) attracted with the movable iron core (4).
6. A normally closed slam shut solenoid valve as defined in claim 5 wherein: and a stroke distance is reserved between the upper end of the movable iron core (4) and the magnetic combination surface (3a), and the stroke distance is smaller than the length of the lower end of the piston rod (6a) in the limiting pipe (1 c).
7. A normally closed slam shut solenoid valve as defined in claim 1 wherein: the upper end of the pull rod (5) protrudes out of the top end of the non-magnetic pipe (3) and is connected with a handle (5a), and a dustproof sealing ring (8) and a dustproof nut (9) are sequentially arranged at the joint of the pull rod (5) and the upper end of the non-magnetic pipe (3).
8. A normally closed slam shut solenoid valve as defined in claim 1 wherein: coil (2) cover is located outside no magnet tube (3), and the upper end is fixed through coil nut (10), and coil (2) and the junction tip of no magnet tube (3) all are equipped with the sealing washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020736727.7U CN212203323U (en) | 2020-05-07 | 2020-05-07 | Normally closed emergency cut-off electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020736727.7U CN212203323U (en) | 2020-05-07 | 2020-05-07 | Normally closed emergency cut-off electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212203323U true CN212203323U (en) | 2020-12-22 |
Family
ID=73831110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020736727.7U Active CN212203323U (en) | 2020-05-07 | 2020-05-07 | Normally closed emergency cut-off electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212203323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278642A (en) * | 2021-12-24 | 2022-04-05 | 扬州大山液压气动制造有限公司 | Marine lifting normally closed cylinder |
-
2020
- 2020-05-07 CN CN202020736727.7U patent/CN212203323U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278642A (en) * | 2021-12-24 | 2022-04-05 | 扬州大山液压气动制造有限公司 | Marine lifting normally closed cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212203323U (en) | Normally closed emergency cut-off electromagnetic valve | |
| CN106704618A (en) | High-performance gate valve | |
| CN201306484Y (en) | Gas overflow protective device | |
| CN201190464Y (en) | Lockset for electric rolling door | |
| CN206290739U (en) | A kind of high-performance gate valve | |
| CN209839167U (en) | Gas electromagnetic valve powered by low-voltage battery | |
| CN212536871U (en) | Large-diameter electromagnetic valve | |
| CN202266733U (en) | Self-maintaining solenoid valve | |
| CN2926691Y (en) | Fast electrically-controlled cut-off valve | |
| CN111828661A (en) | Novel self preservation formula solenoid valve | |
| CN204004703U (en) | Electromagnetism self closing stop valve | |
| CN105318081A (en) | Electromagnetic self-closing valve | |
| CN212672428U (en) | Double-magnetic-combination step-by-step electromagnetic valve | |
| CN214222153U (en) | Pneumatic electromagnetic valve | |
| CN205908835U (en) | Nuclear power station steam -operating is 3 grades of steam solenoid valves of nuclear safety for auxiliary feed water pump | |
| CN208907507U (en) | Liquefied gas temperature-control safety valve | |
| CN210290798U (en) | High-pressure hydrogen cylinder mouth valve for vehicle | |
| CN212203169U (en) | High-pressure normally-closed emergency cut-off electromagnetic valve | |
| CN218440913U (en) | Gas safety intelligent system electromagnetic valve with manual opening and resetting functions | |
| CN2251086Y (en) | Pipeline gas leakage closing valve | |
| CN217108219U (en) | Energy-saving low-power-consumption intelligent explosion-proof electromagnetic valve | |
| CN205402663U (en) | Boiler pressure adjusting device | |
| CN214699268U (en) | Gas emergency cut-off electromagnetic valve | |
| CN212203326U (en) | Two-way electromagnetic valve | |
| CN220268581U (en) | Isolated high-pressure normally open electromagnetic valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |