CN201487357U - Solenoid valve for compressed natural gas dispensers - Google Patents
Solenoid valve for compressed natural gas dispensers Download PDFInfo
- Publication number
- CN201487357U CN201487357U CN2009201282758U CN200920128275U CN201487357U CN 201487357 U CN201487357 U CN 201487357U CN 2009201282758 U CN2009201282758 U CN 2009201282758U CN 200920128275 U CN200920128275 U CN 200920128275U CN 201487357 U CN201487357 U CN 201487357U
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- CN
- China
- Prior art keywords
- guide pin
- pin bushing
- solenoid valve
- valve
- cover plate
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a solenoid valve used for compressed natural gas dispensers, which comprises a valve seat, a guide sleeve and a shell which are connected in sequence, wherein the valve seat is provided with an inlet and an outlet; the bottom of the guide sleeve is arranged on the valve seat; the guide sleeve extends upwards, penetrates through the shell and is connected with an upper cover plate used for sealing the top end of the shell; the bottom end surface of the shell is provided with a lower cover plate; a coil is arranged between the upper cover plate and the lower cover plate; the coil is correspondingly arranged around the guide sleeve; and the guide sleeve is internally provided with a main valve plug and an auxiliary valve plug, wherein the main valve plug is arranged at the lower part of the guide sleeve, the auxiliary valve plug is connected with the main valve plug, and the auxiliary valve plug comprises am armature, a sealing seat and reset springs I and II. The solenoid valve adopts a solid gas vent structure, and the inlet and the outlet are not directly communicated by the valve plugs, therefore, the solenoid valve has rapid communication and breakage and compact structure, the valve plugs are not easily blocked, the solenoid valve has safe and reliable use and lower cost, is applicable to various working environment with high voltage, and has longer service life.
Description
Technical field
The utility model relates to a kind of solenoid valve that is used for filling machine.
Background technique
CNG filling machine as high pressure equipment, proposed the requirement of more increasing for the reliability of solenoid valve with matching, Security, anti-riot property etc., especially all required and the The whole control system perfect cooperation in functions such as its control accuracy, actuation time, switching frequency, operating life, anti-riot performance, anti-interferences.And general solenoid valve has only two positions of open and close, and long charged work is easy to hot, and is aging, and anti-interference difference and difficult maintenance.This has brought many inconvenience for the user economically with in the later maintenance work.
The segment fluid flow control electromagnetic valve can satisfy above requirement, but the solenoid valve that is used in CNG filling machine field also has an important index one anti-riot performance, the CNG filling machine is when proper functioning, long-time pressure very high (can reach 20Mpa) by solenoid valve, because frequently increasing of solenoid valve Push And Release every day, this just requires solenoid valve on safe and reliable basis, also will have long working life.
The solenoid valve that is used at present on the CNG filling machine is made up of coil fixed core, moving iron core, valve body.When coil electricity, produce magnetic field in the tubular coil central axial direction, moving iron core is magnetized in the same way, its adjacent two ends magnetic pole is opposite, thereby generation magnetic force, produce displacement and fixed core adhesive between the fixed core that moves iron core and fix, open by the valve port of moving iron core the other end sealing before the action, gas passes through, when coil losing electricity, magnetic field disappears, fixed core and moving iron core lose magnetic force simultaneously because of dead electricity simultaneously, valve port is closed, gas is prevented from, so just finished on-off action one time, this solenoid valve requires fixed core and moving iron core must adopt the as far as possible little soft magnetic material of remanent magnetism to make, promptly when being in the magnetic field, it easily is magnetized, degaussing thereupon when external magnetic field disappears, the remanent magnetism of soft magnetic material has determined to have the frequency of okperation of straight ejector half solenoid valve, the solenoid valve that works in upper frequency needs frequent break-make, bigger remanent magnetism when very easily making soft magnetic material produce conventional use the, the influence of remanent magnetism and magnetic hysteresis can cause solenoid closure not in place even can not continue to ring switching signal, thus interruption of work.So it is high more that frequency of okperation requires, require remanent magnetism more little to soft material, and to reach the quick break-make requirement of switching speed less than the 1.5-1.6 millisecond, require existing solenoid valve must use the expensive high-frequency electromagnetic material, this class material needs import at present, cost is higher, and it is limited to originate, and should not be extensive use of.
The model utility content
In view of this, the utility model provides a kind of solenoid valve that is used for filling machine, adopts the solid structure of giving vent to anger, and can adapt to the high pressure working environment, and explosion-proof performance is good simultaneously, and cost is lower, is difficult for stopping up.
The purpose of this utility model provides a kind of solenoid valve that is used for filling machine, comprise the valve seat that connects successively, guide pin bushing and shell, described valve seat is provided with import and outlet, the bottom of described guide pin bushing is arranged on the valve seat, described guide pin bushing extends upward and passes shell and link to each other with the upper cover plate that is used for the closed casing top, the bottom end of described shell is provided with lower cover plate, on described, be provided with coil between the lower cover plate, described coil correspondence be arranged at guide pin bushing around, described guide pin bushing inside is provided with main valve plug and auxiliary valve core, described main valve plug is arranged on the bottom of guide pin bushing, described auxiliary valve core links to each other with main valve plug, described main valve plug comprises the off-load duct that a diaphragm unit and an end are connected with diaphragm unit, described diaphragm unit is arranged between import and the outlet, and the opening in described off-load duct is arranged on the top of main valve plug;
Described auxiliary valve core comprises armature body, sealing seat and Returnning spring I, II, the inside of described sealing seat is provided with sealing block, the bottom of described sealing block is provided with the seal groove corresponding with the opening shape in off-load duct, under the normality, described sealing block is by seal groove sealing off-load duct, the top of described sealing block is connected with the bottom of armature body by Returnning spring I, the top of described armature body links to each other with the inner top surface of guide pin bushing by Returnning spring II, and described armature body can upwards slide along the inwall of guide pin bushing under the electromagnetic force effect of coil.
Further, be provided with the explosion-proof seal that waters between described shell and the coil;
Further, also comprise magnetic shield, described magnetic shield is arranged on the top of armature body, and described Returnning spring II is located in the inside of magnetic shield;
Further, guide pin bushing is fixedlyed connected with upper cover plate by positioning screwn;
Further, offer the wire bushing that is used to wear the coil power line on the described upper cover plate;
Further, be provided with sleeve between described main valve plug outer wall and the guide pin bushing;
Further, be provided with seal ring between described sleeve and the guide pin bushing and between guide pin bushing and the valve seat.
The beneficial effects of the utility model are:
1. the utility model has adopted the solid structure of giving vent to anger, and suction port directly is not communicated with by spool with the air outlet, the bottom of the main valve plug sleeve that links closely, and kept certain distance between the suction port, thus guarantee that main valve plug can be not blocked because of small impurity;
2. break-make speed of the present utility model is fast, compact structure, and safe and reliable, cost is lower, can adapt to the working environment of various high pressures, has long operating life.
Other advantages of the present utility model, target, to set forth in the following description to a certain extent with feature, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can realize and obtain by following specification and claims.
Description of drawings
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing the utility model is described in further detail, wherein:
Accompanying drawing is the utility model structural representation.
Embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only for the utility model is described, rather than in order to limit protection domain of the present utility model.
As shown in the figure, the utility model comprises the valve seat 1 that connects successively, guide pin bushing 8 and shell 4, valve seat 1 is provided with import 22 and outlet 23, the bottom of guide pin bushing 8 is arranged on the valve seat 1, guide pin bushing 8 extends upward and passes shell 4 and link to each other with the upper cover plate 6 that is used for closed casing 4 tops, the bottom end of shell 4 is provided with lower cover plate 3, on, be provided with coil 11 between the lower cover plate, coil 11 correspondences be arranged at guide pin bushing 8 around, guide pin bushing 8 inside are provided with main valve plug 9 and auxiliary valve core 10, main valve plug 9 is arranged on the bottom of guide pin bushing 8, auxiliary valve core 10 links to each other with main valve plug 9, main valve plug 9 comprises the off-load duct 21 that a diaphragm unit and an end are connected with diaphragm unit, diaphragm unit is arranged on import 22 and exports between 23, and the opening in off-load duct 21 is arranged on the top of main valve plug 9;
Be provided with between shell 4 and the coil 11 and water seal 12, this waters seal 12 and adopts " INCREASEDSAFETY " design that improves solenoid valve safety, guaranteeing can not produce spark or the dangerous temperature of lighting explosive mixture under the instrument normal running (operation) conditions, thereby improve its Security.
Be provided with magnetic shield 20 at the top of armature body 16, Returnning spring II 19 is located in the inside of magnetic shield 20.
In order to strengthen the connectivity robustness between upper cover plate 6 and the coil 11, guide pin bushing 8 is fixedlyed connected with upper cover plate 6 by positioning screwn 13.
Offer the wire bushing 7 that is used to wear the coil power line on the upper cover plate 6, to guarantee the safe inlet wire of incoming line.Simultaneously, the control cable of solenoid valve adopts " spiral tightens isolation " measure, because solenoid valve is charged for a long time and have certain temperature under the condition of high temperature, can guarantee to control cable by this measure and directly not be connected with the solenoid valve upper end, to improve the safety in utilization of solenoid valve.
Be provided with sleeve 2 between main valve plug 9 outer walls and the guide pin bushing 8, the effect of sleeve is to make main valve plug to move up and down the difficult vibrations that produce under the effect of cutting, reduce noise, improve reliability, be the sealing effect of assurance device integral body, be provided with seal ring 15 between sleeve 2 and the guide pin bushing 8 and between guide pin bushing 8 and the valve seat 1.
The utility model in use, connect the 12V DC electrical source by giving coil 11, according to ampere's rule, can produce magnetic field around the coil 11, the armature body 16 of auxiliary valve core 10 inside moves upward in the effect of electromagnetic force, this moment, sealing block 24 moved, open the off-load duct 21 of main valve plug 9 centres, at this moment main valve plug 9 moves upward under action of pressure, opens the main valve gate seat, import 22 and the air-flow path that exports between 23 are communicated with, and pressurized gas flow to outlet.After coil 11 outages, armature body 16 moves downward under the effect of spring, sealing block 24 is moved down, off-load duct in the middle of the sealing main valve plug, main valve plug 9 moves downward under action of pressure, closes the main valve gate seat, and this moment, valve port was closed, the cutoff high air-flow, thus a switch motion just finished.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1. the solenoid valve that is used for filling machine, comprise the valve seat (1) that connects successively, guide pin bushing (8) and shell (4), described valve seat (1) is provided with import (22) and outlet (23), the bottom of described guide pin bushing (8) is arranged on the valve seat (1), described guide pin bushing (8) extends upward and passes shell (4) and link to each other with the upper cover plate (6) that is used for closed casing (4) top, the bottom end of described shell (4) is provided with lower cover plate (3), on described, be provided with coil (11) between the lower cover plate, described coil (11) correspondence be arranged at guide pin bushing (8) around, described guide pin bushing (8) inside is provided with main valve plug (9) and auxiliary valve core (10), described main valve plug (9) is arranged on the bottom of guide pin bushing (8), described auxiliary valve core (10) links to each other with main valve plug (9), it is characterized in that: described main valve plug (9) comprises the off-load duct (21) that a diaphragm unit and an end are connected with diaphragm unit, described diaphragm unit is arranged between import (22) and the outlet (23), and the opening in described off-load duct (21) is arranged on the top of main valve plug (9);
Described auxiliary valve core (10) comprises armature body (16), sealing seat (17) and Returnning spring I, II (18,19), the inside of described sealing seat (17) is provided with sealing block (24), the bottom of described sealing block (24) is provided with the corresponding seal groove of opening shape with off-load duct (21), under the normality, described sealing block (24) is by seal groove sealing off-load duct (21), the top of described sealing block (24) is connected with the bottom of armature body (16) by Returnning spring I (18), the top of described armature body (16) links to each other with the inner top surface of guide pin bushing (8) by Returnning spring II (19), and described armature body (16) can upwards slide along the inwall of guide pin bushing (8) under the electromagnetic force effect of coil (11).
2. the solenoid valve that is used for filling machine according to claim 1 is characterized in that: be provided with the explosion-proof seal (12) that waters between described shell (4) and the coil (11).
3. the solenoid valve that is used for filling machine according to claim 2 is characterized in that: also comprise magnetic shield (20), described magnetic shield (20) is arranged on the top of armature body (16), and described Returnning spring II (19) is located in the inside of magnetic shield (20).
4. the solenoid valve that is used for filling machine according to claim 3 is characterized in that: described guide pin bushing (8) is fixedlyed connected with upper cover plate (6) by positioning screwn (13).
5. the solenoid valve that is used for filling machine according to claim 4 is characterized in that: offer the wire bushing (7) that is used to wear the coil power line on the described upper cover plate (6).
6. the solenoid valve that is used for filling machine according to claim 5 is characterized in that: be provided with sleeve (2) between described main valve plug (9) outer wall and the guide pin bushing (8).
7. the solenoid valve that is used for filling machine according to claim 6 is characterized in that: be provided with seal ring (15) between described sleeve (2) and the guide pin bushing (8) and between guide pin bushing (8) and the valve seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201282758U CN201487357U (en) | 2009-07-31 | 2009-07-31 | Solenoid valve for compressed natural gas dispensers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201282758U CN201487357U (en) | 2009-07-31 | 2009-07-31 | Solenoid valve for compressed natural gas dispensers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487357U true CN201487357U (en) | 2010-05-26 |
Family
ID=42426236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201282758U Expired - Fee Related CN201487357U (en) | 2009-07-31 | 2009-07-31 | Solenoid valve for compressed natural gas dispensers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487357U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822809A (en) * | 2016-05-26 | 2016-08-03 | 上海舜华新能源系统有限公司 | Electromagnetic actuator mounted on high-pressure gas integrated cylinder valve |
| CN110617332A (en) * | 2018-06-19 | 2019-12-27 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
-
2009
- 2009-07-31 CN CN2009201282758U patent/CN201487357U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822809A (en) * | 2016-05-26 | 2016-08-03 | 上海舜华新能源系统有限公司 | Electromagnetic actuator mounted on high-pressure gas integrated cylinder valve |
| CN110617332A (en) * | 2018-06-19 | 2019-12-27 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN110617332B (en) * | 2018-06-19 | 2022-01-04 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING JUCHUANG METERING EQUIPMENT CO.,LTD. Free format text: FORMER NAME: CHONGQING INNOVATION MEASURE EQUIPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 401329 Chongqing Jiulongpo Baishiyi town Hailong Village 8 Patentee after: Chongqing Juchuang Metering Equipment Co.,Ltd. Address before: 401120, No. 9, Yubei District Airport Industrial Park, Chongqing Patentee before: Chongqing Juchuang Metering Equipment Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Chongqing Juchuang Metering Equipment Co.,Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Chongqing Juchuang Metering Equipment Co.,Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20160731 |