CN201170324Y - Leak-proof safety valve for gas - Google Patents
Leak-proof safety valve for gas Download PDFInfo
- Publication number
- CN201170324Y CN201170324Y CNU2008200839505U CN200820083950U CN201170324Y CN 201170324 Y CN201170324 Y CN 201170324Y CN U2008200839505 U CNU2008200839505 U CN U2008200839505U CN 200820083950 U CN200820083950 U CN 200820083950U CN 201170324 Y CN201170324 Y CN 201170324Y
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- Prior art keywords
- valve
- coil
- gas leakage
- burnt gas
- magnet
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- Expired - Lifetime
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Abstract
The utility model provides a safety valve which is applied to a gas pipeline and is used for preventing leakage, belonging to the mechanical technical field. The safety valve solves the problems of the prior gas leakage safety valve that the assembly is complicated, the safety performance is unstable, the service life is short and the production cost is high. The gas leakage safety valve comprises a valve body and a coil bracket assembled with a coil and a magnet, wherein, the surface of the coil bracket is fixedly connected with a valve cover, a valve plug capable of moving up and down is arranged inside the coil bracket, the inner end of the valve plug is provided with a sealing piece capable of closing the safety valve, the sealing piece is arranged inside the valve body, and the valve cover is produced by the one-step injection molding method that the coil bracket assembled with the magnet and the coil is put inside a valve cover die. The safety valve cover is formed by the one-step molding technique that the coil bracket assembled with the magnet and the coil is put inside a valve cover plastic die through the injection molding, thereby greatly simplifying the manufacturing technique, isolating the contact of the coil with the outside air, preventing the coil from heating and being oxidized when the coil is electrified, and prolonging the service life of the coil.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of safety valve, particularly a kind ofly is used for preventing on the gas pipeline safety valve that leaks.
Background technique
Along with improving constantly of China's rapid economy development and living standards of the people, coal gas and liquefied petroleum gas (LPG) are used more and more universal as domestic fuel.In combustion gas was used, combustion gas took place time and again because of leaking poisoning or explosive incident.For this reason, people install a safety valve usually on gas pipeline, and the handling safety valve disconnects source of leaks when gas leakage takes place.
Burnt gas leakage security valve in usefulness all is to adopt the action of solenoid actuated spool in the market.As Chinese patent disclosed " household gas leakage safety valve " (its application number is 200610143444.6).Valve gap in this patent is socketed on the fixing frame, and coil brace is contained on the fixing frame with tapping screw, comprises that also the coil carrier that is contained in the coil brace, the coil and the magnet that are contained in the coil carrier forms, and spool is housed in the coil carrier.
As can be seen, valve gap in the above-mentioned patent and fixing frame are two separate parts, and valve gap is socketed on the fixing frame, be connected by seal ring and fixing frame, because it is seal ring is that rubber is made, aging easily, its sealability of long duration can descend, so the Safety performance instability; Moreover separate valve gap and fixing frame connect together by the mode of socket, are fixed with coil brace on the fixing frame, and in coil brace coil carrier and coil are housed successively, make like this to leave certain space between coil carrier and the valve gap.Most coil is directly exposed in the air, and is very easily oxidized when coil electricity generates heat, makes the performance and the decrease in efficiency of whole safety valve, and shorten working life; In addition, this class burnt gas leakage security valve also exists assemble flow too much, and complex manufacturing and cost of production are crossed problems such as height.
Summary of the invention
The purpose of this utility model is at the existing the problems referred to above of existing safety valves for gas, and has proposed simple, the long service life of a kind of assembling, the burnt gas leakage security valve of Safety performance height and good airproof performance.
The purpose of this utility model can realize by following technical proposal: a kind of burnt gas leakage security valve, comprise valve body and the coil carrier that is equipped with coil and magnet, the surface of coil carrier is fixed with valve gap, and be provided with spool moving up and down in inside, the inner of spool is provided with the Sealing that safety valve can cut out, the sealing part places in the valve body, it is characterized in that, described valve gap is material with plastics, the method that the coil carrier that employing will be equipped with magnet and coil is placed on once injection moulding in the valve gap mould is made, and the valve gap of molding and forming is connected with valve body.
This burnt gas leakage security valve is loaded on the gas pipeline, and the blanked-off pipe road is used under the situation that gas leakage takes place.Be placed in the mould of valve gap behind assembling coil and the magnet on the coil carrier, adopt once injection moulding method make valve gap, this moment, valve gap wrapped the surface of supporting frame fully, and was fixed together.Space between coil and the valve gap is also filled by plastics.When gas leakage needed the closed safe valve, coil electricity moved to valve body at the driving lower valve core of electromagnetic force, drove Sealing and was pressed on the valve body, and the combustion gas that suction port is entered can not be discharged from the air outlet.
In above-mentioned burnt gas leakage security valve, described coil carrier end is provided with a fixed structure, is used for magnet is fixed on coil carrier.
In above-mentioned burnt gas leakage security valve, described fixed structure is inserted link and the iron plate that several and valve core movement direction be arranged in parallel, one end and the coil carrier of each inserted link are connected, and the other end is provided with outstanding dogging shoulder, have the jack that is complementary with each inserted link shape on the described iron plate.The shape of jack and quantity are all mated with inserted link on the iron plate, and during fixed magnet, each inserted link correspondence one by one is inserted in each jack, and utilize the dogging shoulder of plunger end to fix iron plate, prevent that iron plate from coming off.In case iron plate is fixed, then the magnet with the firm adhesive of iron plate has been fixed on the coil carrier too.
In above-mentioned burnt gas leakage security valve, described dogging shoulder is provided with guide surface.Guide surface play the guiding role, and makes things convenient for inserted link to be inserted in the jack.
In above-mentioned burnt gas leakage security valve, described magnet is ring-type.Ring magnet is socketed in the periphery of each inserted link, and while and iron plate adhesive.Can magnet be pull-in on any side of iron plate according to actual conditions.
In above-mentioned burnt gas leakage security valve, connect by a circular-arc block between described adjacent two inserted links, each block is positioned on the same circumference.All blocks and inserted link have been formed the back-up ring of a ring jointly, and after the outside cover of back-up ring connected magnet, the outer side surface of any one circular-arc block all can contact with the magnet inner hole wall, has increased the soundness of inserted link greatly.
In above-mentioned burnt gas leakage security valve, described Sealing comprises sealing baffle and lower link, and the two ends of lower link are connected with sealing baffle and spool respectively.When the spool in the vertical direction moves back and forth, drive lower link and sealing baffle and together move, sealing baffle is pressed on the valve body and safety valves for gas can be closed.
In above-mentioned burnt gas leakage security valve, the surface of described lower link is with the stuffing box gland that is connected with valve gap, is with spring on the stuffing box gland, and the two ends of described spring are connected with sealing baffle and stuffing box gland respectively.Stuffing box gland prevents combustion gas from the leakage of the gap between spool and the coil carrier, and spool, sealing baffle and lower link move up and down under the electromagnetic force that produces behind the coil electricity drives, and make spring generation elastic strain.After coil stops to switch on spool, sealing baffle and lower link are resetted.
In above-mentioned burnt gas leakage security valve, between described valve gap and the valve body by being threaded.The end that valve gap is used for being connected with valve body directly forms screw thread by the method for molding and forming.
In above-mentioned burnt gas leakage security valve, the joint of described valve gap and valve body is provided with seal ring.Seal ring is arranged between valve gap and the valve body, prevents that the joint of valve gap and valve body from leaking.
Compared with prior art, the novel beneficial effect of this use is:
1, stable reaching assembled simply, and coil carrier can be put into valve gap behind fit on magnet and coil mold tool forms valve gap by injection moulding pressing mold one-shot forming technique, and the user need not each component are assembled in use.
2, good airproof performance is fixed together by injection moulding between valve gap and the coil carrier, has increased sealing.
3, long service life, the coil surface plastic covered during by the valve gap injection moulding has been broken off getting in touch of coil and ambient air, and oxidation takes place in heating when preventing coil electricity, has increased the working life of coil.
4, cost of production is low, uses a ring magnet to replace original a plurality of block magnet, uses the quantity of magnet to reduce; Simultaneously, saved the supporting frame between coil carrier and the valve gap, made the valve gap smaller volume, valve body with matching also diminishes thereupon, has saved raw material greatly.
Description of drawings
Fig. 1 is the structural representation of this burnt gas leakage security valve.
Fig. 2 is the decomposition texture schematic representation that is equipped with the coil carrier of magnet in this burnt gas leakage security valve.
Among the figure, 1, valve body; 2, valve gap; 3, back-up ring; 31, block; 4, Sealing; 41, sealing baffle; 42, lower link; 42a, stuffing box gland; 42b, spring; 43, upper connecting rod; 43a, upper connecting rod cap; 5, spool; 6, coil carrier; 61, coil; 62, magnet; 7, iron plate; 71, jack; 72, through hole; 8, seal ring; 9, catch; 91, inserted link; 91a, dogging shoulder; 91b, guide surface.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Shown in the accompanying drawing 1 is not have under the situation of gas leakage, burnt gas leakage security valve is in opening state, as shown in FIG., this burnt gas leakage security valve comprises valve body 1 and coil carrier 6, the surface of coil carrier 6 is fixed with valve gap 2, and being provided with spool 5 moving up and down in inside, the outside disc of coil carrier 6 has coil 61, and is fixed with magnet 62 at the top of coil carrier 6.
The upper and lower of spool 5 is equipped with upper connecting rod 43 and lower link 42 respectively, sealing baffle 41 is equipped with in the bottom of lower link 42, stuffing box gland 42a and spring 42b are equipped with in the outside of lower link 42, and stuffing box gland 42a and valve gap 2 are connected, and the two ends of spring 42b are connected with sealing baffle 41 and stuffing box gland 42a respectively.
As shown in Figure 2, coil carrier 6 is cylindric, two ends are fixed with annular catch 9 respectively, be fixed with two inserted links 91 that are provided with coil carrier 6 endoporus axis parallels on one of them catch 9, one end and the catch 9 of inserted link 91 are connected, the other end is provided with outstanding dogging shoulder 91a, and each dogging shoulder 91a all has guide surface 91b.Be provided with 31, two blocks 31 of two sections circular-arc blocks between two inserted links 91 and be separately positioned on the both sides of coil carrier 6 ports and be positioned on the same circumference, block 31 and inserted link 91 have constituted the back-up ring 3 of a ring jointly.
In the present embodiment, magnet 62 is ring-type, is socketed in the outside of back-up ring 3, and the internal diameter size of magnet 62 is complementary with the external diameter size of back-up ring 3.Magnet 62 is provided with an iron plate 7 with respect to the opposite side of coil carrier 6, has two jacks 71 that mate one by one with inserted link 91 shapes, position on the iron plate 7.The center of iron plate 7 has a through hole 72, is convenient to upper connecting rod 73 and passes iron plate 7 and be connected with spool 5.
This burnt gas leakage security valve is loaded on the gas pipeline, and the blanked-off pipe road is used under the situation that gas leakage takes place.Magnet 62 is socketed in the outside of back-up ring 3, simultaneously with in the corresponding one by one jack 71 that is inserted on the iron plate 7 of inserted link 91.Inserted link 91 and dogging shoulder 91a all adopt plastic materials to be made, and also have guide surface 91b on the dogging shoulder 91a, and in the process of inserted link 91 in being inserted into jack 71, dogging shoulder 91a utilizes himself deformable material behavior and guide surface 91b to pass jack 71 smoothly.The dogging shoulder 91a that passes behind the jack 71 automatically resets, and iron plate 7 is fixed on coil carrier 6.This moment magnet 62 by clamping between iron plate 7 and catch 9, and with iron plate 7 adhesives.
Can be placed on behind the coil 61 on the outside disc of coil carrier 6 in the mould of valve gap 2, adopt once injection moulding method make valve gap 2, this moment, valve gap 2 wrapped the surface of coil carrier 6 fully, and was fixed together.Space between coil 61 and the valve gap 2 is also filled by plastics, and the bottom of valve gap 2 has screw thread simultaneously, conveniently is connected with valve body 1.
When gas leakage needs the closed safe valve, coil 61 energisings, driving lower valve core 5 in electromagnetic force moves to valve body 1, when spool 5 in the vertical directions move back and forth, driving lower link 42 and sealing baffle 41 together moves, sealing baffle 41 is pressed on the valve body 1 and safety valves for gas can be closed, and the combustion gas that suction port is entered can not be gone out from the air outlet.This moment, spring 42b generation elastic strain was stretched.After coil 61 stops to switch on spool 5, sealing baffle 41 and lower link 42 are resetted.
The top of this burnt gas leakage security valve also is provided with upper connecting rod 43 and upper connecting rod cap 43a, can open upper connecting rod cap 43a in case of necessity, manually upper connecting rod 43 is upwards drawn or to pressing down, finishes the open and close safety valve with this.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (10)
1, a kind of burnt gas leakage security valve, comprise valve body (1) and be equipped with coil (61) and the coil carrier (6) of magnet (62), the surface of coil carrier (6) is fixed with valve gap (2), and be provided with spool moving up and down (5) in inside, the inner of spool (5) is provided with the Sealing (4) that safety valve can cut out, sealing part (4) places in the valve body (1), it is characterized in that, described valve gap (2) is material with plastics, the method that the coil carrier (6) that employing will be equipped with magnet (62) and coil (61) is placed on once injection moulding in valve gap (2) mould is made, and the valve gap of molding and forming (2) is connected with valve body (1).
2, burnt gas leakage security valve according to claim 1 is characterized in that, described coil carrier (6) end is provided with a fixed structure, is used for magnet (62) is fixed on coil carrier (6).
3, burnt gas leakage security valve according to claim 2, it is characterized in that, described fixed structure is inserted link (91) and the iron plate (7) that several and spool (5) moving direction be arranged in parallel, one end of each inserted link (91) and coil carrier (6) are connected, the other end is provided with outstanding dogging shoulder (91a), has the jack (71) that is complementary with each inserted link (91) shape on the described iron plate (7).
4, burnt gas leakage security valve according to claim 3 is characterized in that, described dogging shoulder (91a) is provided with guide surface (91b).
5, according to any described burnt gas leakage security valve in the claim 1～4, it is characterized in that described magnet (62) is ring-type.
According to claim 3 or 4 described burnt gas leakage security valves, it is characterized in that 6, connect by a circular-arc block (31) between described adjacent two inserted links (91), each block (31) is positioned on the same circumference.
7, according to any described burnt gas leakage security valve in the claim 1～4, it is characterized in that, described Sealing (4) comprises sealing baffle (41) and lower link (42), and the two ends of lower link (42) are connected with sealing baffle (41) and spool (5) respectively.
8, burnt gas leakage security valve according to claim 7, it is characterized in that, the surface of described lower link (42) is with the stuffing box gland (42a) that is connected with valve gap (2), be with spring (42b) on the stuffing box gland (42a), the two ends of described spring (42b) are connected with sealing baffle (41) and stuffing box gland (42a) respectively.
9, according to any described burnt gas leakage security valve in the claim 1～4, it is characterized in that, between described valve gap (2) and the valve body (1) by being threaded.
10, burnt gas leakage security valve according to claim 9 is characterized in that, described valve gap (2) is provided with seal ring (8) with the joint of valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200839505U CN201170324Y (en) | 2008-03-11 | 2008-03-11 | Leak-proof safety valve for gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200839505U CN201170324Y (en) | 2008-03-11 | 2008-03-11 | Leak-proof safety valve for gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170324Y true CN201170324Y (en) | 2008-12-24 |
Family
ID=40209377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200839505U Expired - Lifetime CN201170324Y (en) | 2008-03-11 | 2008-03-11 | Leak-proof safety valve for gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201170324Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235900B (en) * | 2008-03-11 | 2010-06-02 | 陈先仁 | Burnt gas leakage security valve |
| CN115008179A (en) * | 2022-05-11 | 2022-09-06 | 安庆帝伯格茨缸套有限公司 | Automatic assembling equipment |
-
2008
- 2008-03-11 CN CNU2008200839505U patent/CN201170324Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235900B (en) * | 2008-03-11 | 2010-06-02 | 陈先仁 | Burnt gas leakage security valve |
| CN115008179A (en) * | 2022-05-11 | 2022-09-06 | 安庆帝伯格茨缸套有限公司 | Automatic assembling equipment |
| CN115008179B (en) * | 2022-05-11 | 2023-09-22 | 安庆帝伯格茨缸套有限公司 | Automatic assembly equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081224 Effective date of abandoning: 20080311 |