CN214999725U - Self-holding electromagnetic stop valve for liquefied gas cylinder - Google Patents
Self-holding electromagnetic stop valve for liquefied gas cylinder Download PDFInfo
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- CN214999725U CN214999725U CN202121311389.3U CN202121311389U CN214999725U CN 214999725 U CN214999725 U CN 214999725U CN 202121311389 U CN202121311389 U CN 202121311389U CN 214999725 U CN214999725 U CN 214999725U
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Abstract
The utility model discloses a liquefied gas bottle self-sustaining electromagnetism stop valve, the front end of valve body is equipped with the valve pocket of indent, valve body rear end sealing connection coil sleeve front end, solenoid overlaps on the coil sleeve, coil sleeve internal fixation permanent magnet circle, at coil sleeve built-in can follow the armature that removes, link up by the passageway from the valve pocket to the valve body rear end, the valve pocket is built-in mobilizable valve seal, the tappet of mobilizable in the passageway inner periphery, the both ends of tappet connect valve seal and armature respectively in valve pocket and coil sleeve, the front end in the valve pocket is fixed with the jump ring, jump ring and valve seal connect the front and back both ends of spring respectively, the rear end of keeping away from the valve body outside the coil sleeve is installed with the detachable shutoff piece, be used for the rear end of sealed coil sleeve, the valve body side is equipped with the exit of radially communicating the valve pocket of passageway along the valve body, the outer periphery profile of valve seal cooperates with the inner periphery profile of valve seal, the front end and the rear end of the valve seal are communicated by a through hole penetrating through the valve seal or a cutting groove formed on the side surface of the valve seal in a turning mode.
Description
Technical Field
The utility model relates to a gas cylinder valve technical field especially relates to automobile-used liquid ammonia steel bottle can realize automatic remote control's of valve electric stop valve.
Background
The automobile-used liquid ammonia steel bottle splendid attire is handled tail gas on the motor vehicle, need be according to vehicle engine's rotational speed, the injection of moment of torsion continuous control liquid ammonia through ECU, if adopt the solenoid valve to come the injection of continuous control liquid ammonia, because the solenoid valve maintains the on state for a long time and can lead to the overheated loss of coil, and liquid ammonia belongs to poisonous hazardous articles, liquid ammonia has strong rapid stimulus to eyes, arouse the burn, serious leading to the blindness, can lead to spouting ammonia excessive or the car also spouts ammonia when not using after the solenoid valve became invalid, it is necessary to develop and design "a gas cylinder integration automatic control valve who realizes intelligent control" and replace solenoid valve control case and satisfy the safe and stable supply of gas in the steel bottle, prevent to reveal.
Patent CN112856226A discloses a liquefied gas stop valve for vehicle, which can realize the opening and closing of valve body and cut off or provide the supply of liquid ammonia, but the structure of the device is still more complicated, the turning requirement of valve core is high, therefore, the cost is high, and the valve body with simpler structure is needed at present, and the manufacturing cost of the valve body is reduced. In addition, the valve body structure is required to ensure tight sealing and prevent liquid ammonia leakage.
SUMMERY OF THE UTILITY MODEL
In view of this, the object of the disclosure is to provide a self-sustaining electromagnetic stop valve for a liquefied gas cylinder, which can effectively solve the problem of safe and reliable use of the liquefied gas cylinder in a motor vehicle, and realize automatic remote control. And a magnetic holding mode is used, so that the valve core structure is simplified, the manufacturing cost is reduced, and the sealing is tight.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a self-retaining electromagnetic stop valve for a liquefied gas cylinder is characterized in that an inwards-concave valve cavity is arranged at the front end of a valve body, the rear end of the valve body is connected with the front end of a coil sleeve in a sealing manner, an electromagnetic coil is sleeved on the coil sleeve and installed in a coil shell, a permanent magnet coil is fixed in the coil sleeve, an armature capable of moving along the inner periphery of the coil sleeve is arranged in the coil sleeve, a channel formed in the valve body is communicated from the valve cavity to the rear end of the valve body, a valve seal capable of moving along the valve cavity is arranged in the valve cavity, a tappet capable of moving along the inner periphery of the channel is arranged in the channel, two ends of the tappet are respectively connected with the valve seal and the armature in the valve cavity and the coil sleeve, the tappet is in clearance fit with the channel, a clamp spring ring is fixed at the front end in the valve cavity, the clamp ring and the valve seal are respectively connected with the front end and the rear end of a spring, a detachable sealing piece is installed at the rear end, far away from the valve body, outside the coil sleeve, the rear end of the coil sleeve is used for sealing the rear end of the coil sleeve, an inlet and an outlet communicated with the channel along the radial direction of the valve body are arranged on the side of the valve body, the outer peripheral contour of the valve seal is matched with the inner peripheral contour of the valve cavity, and the front end and the rear end of the valve seal are communicated by a through hole penetrating through the valve seal or a cutting groove formed in the side face of the valve seal in a turning mode.
Furthermore, the rear end of the valve seal and the front end of the channel are respectively provided with a sealing ring and a valve seat ring which are matched with each other.
Preferably, the permanent magnet ring is fixed at the front end in the coil sleeve, the channel further penetrates through the permanent magnet ring, two ends of the tappet respectively penetrate through the permanent magnet ring to be connected with the armature and penetrate through the valve body to be connected with the valve seal, when the valve seal is pushed to the rear end of the valve cavity by the spring, the length from the front end of the valve seal to the rear end of the armature is not greater than the distance from the front end of the valve seal to the rear end of the coil sleeve, and when the armature is sucked at the rear end of the permanent magnet ring, the distance from the front end of the armature to the front end of the valve seal is not greater than the distance from the front end of the armature to the snap spring ring.
As another alternative, the permanent magnet ring is fixed at the rear end of the coil sleeve, the armature is arranged between the permanent magnet ring and the front end of the coil sleeve and is fixedly connected with the tappet, when the valve seal is pushed to the rear end of the valve cavity by the spring, the length from the front end of the valve seal to the rear end of the armature is not more than the distance from the front end of the valve seal to the front end of the permanent magnet ring, when the armature is repelled by the permanent magnet ring to contact the rear end of the valve body, the distance from the front end of the armature to the front end of the valve seal is not more than the distance from the front end of the armature to the snap spring ring.
Further, the periphery of the front end of the valve body is also turned to form threads.
Furthermore, the tappet consists of an armature tappet and a valve seal tappet which are connected, and one ends, far away from each other, of the armature tappet and the valve seal tappet are respectively connected with the armature and the valve seal.
The utility model discloses a use as follows:
when the electromagnetic coil is not electrified, the valve seal is abutted against the rear end of the valve cavity under the action of the spring, and the valve body is in a closed state; after the electromagnetic coil is electrified, the armature is magnetized, the armature moves towards the permanent magnet ring, the tappet drives the valve seal to move, the valve body is opened, meanwhile, the armature is attracted by the permanent magnet ring and keeps the state, and the electromagnetic coil is powered off; when the electromagnetic coil is switched on by reverse current, the armature is magnetized reversely, the attraction force of the permanent magnet ring is partially counteracted, and under the action of the spring, the armature moves reversely, the valve body is closed, and the power is kept off.
When the electromagnetic coil is not electrified, the valve seal is abutted against the rear end of the valve cavity under the action of the spring, and the valve body is in a closed state; after the electromagnetic coil is electrified reversely, the armature is magnetized reversely, the armature moves in the direction far away from the permanent magnet ring, the armature approaches the rear end of the valve body, the tappet rod drives the valve seal to move, the valve body is opened, and after the electromagnetic coil is powered off, the armature is still repelled by the permanent magnet ring and keeps in a state; when the electromagnetic coil is switched on with forward current, the armature is magnetized in the forward direction, and under the action of the spring, the armature moves in the reverse direction, the valve body is closed, and the power is off and kept.
Drawings
FIG. 1 is a schematic cross-sectional view of a self-holding electromagnetic stop valve for a liquefied gas cylinder;
fig. 2 is a perspective view of the appearance of a self-holding electromagnetic stop valve of a liquefied gas cylinder.
Detailed Description
The present invention is described in further detail below with reference to the following figures and specific examples, which should not be construed as limiting the invention.
Example 1:
referring to fig. 1, a self-holding electromagnetic stop valve for liquefied gas cylinder is provided, which comprises a front end 11 of a valve body 1 provided with a recessed valve cavity 15, a rear end 12 of the valve body 1 hermetically connected with the front end of a coil sleeve 8, an electromagnetic coil 6 sleeved on the coil sleeve 8 and installed in a coil housing 13, a permanent magnet ring 5 fixed at the front end of the coil sleeve 8, an armature 7 movable along the inner circumference of the coil sleeve 8 and arranged in the coil sleeve 8, the permanent magnet ring 5 extending from the valve cavity 15 to the rear end 12 of the valve body 1 and communicated with a channel 24 formed in the valve body 1 and the permanent magnet ring 5, the armature 7 connected with a tappet 2 penetrating the channel 24, one end of the tappet 2 extending into the valve cavity 15 connected with the rear end of the valve seal 9, a clamp spring ring 3 fixed at the front end of the valve cavity 15, the clamp spring ring 3 and the valve seal 9 respectively connected with the front and rear ends of a spring 4, a detachable sealing piece 14 installed at the rear end of the coil sleeve 8 far away from the valve body 1, the rear end of the sleeve 8 for blocking the armature 7 and the sealing coil is provided with an inlet and an outlet 20 which are communicated with a channel 24 along the radial direction of the valve body, and the periphery of the front end of the valve body 1 is turned to form threads.
The tappet 2 is in clearance fit with the passage 24, the length of the tappet 2 is larger than that of the passage 24, when the valve seal 9 is pushed to the rear end of the valve cavity 15 by the spring 4, the length from the front end of the valve seal 9 to the rear end of the armature 7 is not larger than the distance from the front end of the valve seal 9 to the rear end of the coil sleeve 8, when the armature 7 is sucked to the rear end of the permanent magnet ring 5, the distance from the front end of the armature 7 to the front end of the valve seal 9 is not larger than the distance from the front end of the armature 7 to the clamp spring ring 3, the armature 7 is in clearance fit with the coil sleeve 8, the valve seal 9 is in sliding connection with the valve cavity 15, the outer peripheral contour of the valve seal 9 is matched with the inner peripheral contour of the valve cavity 15, and the front end and the rear end of the valve seal 9 are communicated with a through hole 10 penetrating through the valve seal 9 or a cutting groove 10 formed in the side face of the valve seal 9 in a turning mode. The rear end of the valve seal 9 and the front end of the passage 24 are provided with a sealing ring 28 and a valve seat ring 27, respectively, which are fitted to each other.
When the electromagnetic coil 6 is not electrified, the valve seal 9 is abutted against the rear end of the valve cavity 15 under the action of the spring 4, and the valve body 1 is in a closed state; after the electromagnetic coil 6 is electrified, the armature 7 is magnetized, the armature 7 moves towards the permanent magnet ring 5, the tappet rod 2 drives the valve seal 9 to move, the valve body 1 is opened, meanwhile, the armature 7 is attracted by the permanent magnet ring 5 and keeps the state, and the electromagnetic coil 6 is powered off; when the electromagnetic coil 6 is switched on by reverse current, the armature 7 is magnetized reversely, the attraction force of the permanent magnet ring 5 is partially counteracted, under the action of the spring 4, the armature 7 moves reversely, the valve body 1 is closed, and the power is off and kept.
In the process, as a remarkable characteristic of the embodiment, when the armature 7 approaches the permanent magnet ring 5, a force far away from the rear end of the valve body 1 is not applied to the coil housing 13, and when the valve seal 9 touches the rear end of the valve cavity 15, the armature 7 does not impact the blocking piece 14, so that the blocking piece 14 and the coil sleeve 8 of the device are in sealed connection, the coil housing 13 and the rear end of the valve body 1 are in sealed connection, and liquid ammonia cannot leak.
The block piece 14 of the present device comprises a compression nut 141 welded to the rear end of the coil sleeve 8, and a pole piece 142 screwed to the compression nut 141. The tappet 2 of the device consists of an armature tappet 21 and a valve seal tappet 22 which are connected, and the ends of the armature tappet and the valve seal tappet which are far away from each other are respectively connected with an armature and a valve seal.
As another alternative, the permanent magnet ring 5 in the present device may also be fixed at the rear end of the coil sleeve 8, the armature 7 is arranged between the permanent magnet ring 5 and the front end of the coil sleeve 8 and is fixedly connected with the armature tappet 21, and when the valve seal 9 is pushed against the rear end of the valve cavity 15 by the spring 4, the length from the front end of the valve seal 9 to the rear end of the armature 7 is not greater than the distance from the front end of the valve seal 9 to the front end of the permanent magnet ring 5. When the armature 7 is repelled by the permanent magnet ring 5 to contact the rear end of the valve body 1, the distance from the front end of the armature 7 to the front end of the valve seal 9 is not greater than the distance from the front end of the armature 7 to the snap spring ring 3.
The above the implementation method of the present invention is not limited to the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to the related technical fields, and all the same principles are included in the protection scope of the present invention. Details not described in the present specification belong to the prior art known to those skilled in the art.
Claims (6)
1. A self-holding electromagnetic stop valve for liquefied gas cylinder is characterized in that the front end of a valve body is provided with an inwards concave valve cavity, the rear end of the valve body is hermetically connected with the front end of a coil sleeve, an electromagnetic coil is sleeved on the coil sleeve and installed in a coil shell, a permanent magnet coil is fixed in the coil sleeve, an armature which can move along the inner circumference of the coil sleeve is arranged in the coil sleeve, a channel which is formed in the valve body is communicated from the valve cavity to the rear end of the valve body, a valve seal which can move along the valve cavity is arranged in the valve cavity, a tappet which can move along the inner circumference of the channel is arranged in the channel, two ends of the tappet are respectively connected with the valve seal and the armature in the valve cavity and the coil sleeve, the tappet is in clearance fit with the channel, the front end in the valve cavity is fixedly provided with a clamp spring ring, the clamp ring and the valve seal are respectively connected with the front end and the rear end of a spring, the rear end, far away from the valve body, outside the coil sleeve is provided with a detachable sealing piece for sealing the rear end of the coil sleeve, the side surface of the valve body is provided with an inlet and an outlet which are communicated with the passage along the radial direction of the valve body, the outer peripheral profile of the valve seal is matched with the inner peripheral profile of the valve cavity, and the front end and the rear end of the valve seal are communicated by a through hole penetrating through the valve seal or a cutting groove formed on the side surface of the valve seal through turning.
2. The self-retaining electromagnetic shut-off valve for liquefied gas cylinder according to claim 1, wherein the rear end of the valve seal and the front end of the passage are respectively provided with a sealing ring and a valve seat ring which are mutually matched.
3. The self-retaining electromagnetic stop valve for liquefied gas cylinder according to claim 1, wherein the permanent magnet ring is fixed at the front end in the coil sleeve, the channel further penetrates through the permanent magnet ring, the two ends of the tappet respectively penetrate through the permanent magnet ring to connect the armature and the valve body to connect the valve seal, when the valve seal is pushed to the rear end of the valve cavity by the spring, the length from the front end of the valve seal to the rear end of the armature is not more than the distance from the front end of the valve seal to the rear end of the coil sleeve, and when the armature is sucked at the rear end of the permanent magnet ring, the distance from the front end of the armature to the front end of the valve seal is not more than the distance from the front end of the armature to the snap spring ring.
4. The self-retaining electromagnetic stop valve for liquefied gas cylinder according to claim 1, characterized in that the permanent magnet ring is fixed at the rear end of the coil sleeve, the armature is arranged between the permanent magnet ring and the front end of the coil sleeve and is fixedly connected with the tappet, when the valve seal is pushed against the rear end of the valve cavity by the spring, the length from the front end of the valve seal to the rear end of the armature is not more than the distance from the front end of the valve seal to the front end of the permanent magnet ring, and when the armature is repelled by the permanent magnet ring to contact the rear end of the valve body, the distance from the front end of the armature to the front end of the valve seal is not more than the distance from the front end of the armature to the snap spring ring.
5. A liquefied gas cylinder self-retaining electromagnetic stop valve according to any one of claims 1 to 4, characterized in that the outer periphery of the front end of the valve body is also turned to form a thread.
6. The self-retaining electromagnetic shut-off valve for liquefied gas cylinders according to claim 5, wherein the tappet is composed of an armature tappet and a valve seal tappet which are connected, and the ends of the armature tappet and the valve seal tappet which are far away from each other are respectively connected with the armature and the valve seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121311389.3U CN214999725U (en) | 2021-06-11 | 2021-06-11 | Self-holding electromagnetic stop valve for liquefied gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121311389.3U CN214999725U (en) | 2021-06-11 | 2021-06-11 | Self-holding electromagnetic stop valve for liquefied gas cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN214999725U true CN214999725U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121311389.3U Active CN214999725U (en) | 2021-06-11 | 2021-06-11 | Self-holding electromagnetic stop valve for liquefied gas cylinder |
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| CN (1) | CN214999725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458816A (en) * | 2022-01-10 | 2022-05-10 | 宁波市安利特机械有限公司 | Pressure-reducing self-locking integrated electromagnetic valve in bottle |
-
2021
- 2021-06-11 CN CN202121311389.3U patent/CN214999725U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458816A (en) * | 2022-01-10 | 2022-05-10 | 宁波市安利特机械有限公司 | Pressure-reducing self-locking integrated electromagnetic valve in bottle |
| CN114458816B (en) * | 2022-01-10 | 2024-04-26 | 宁波市安利特机械有限公司 | Pressure-reducing self-locking integrated electromagnetic valve in bottle |
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