CN209245318U - Fuel gas plug valve - Google Patents

Abstract

The utility model discloses a kind of fuel gas plug valves, including valve body (1), needle (7), driving lever (8) and the solenoid valve (6) being arranged in valve body air inlet gas circuit, needle is vertically provided in valve chamber (3), one end of driving lever is equipped with the first plectrum (81) that transmission is abutted with the bottom end of needle, the other end of driving lever is equipped with the second plectrum (82) for triggering solenoid valve, solenoid valve includes the sealing-plug (61) for blocking electromagnetic valve air inlet, the front end of sealing-plug is equipped with the intermediate transmission bar (9) coaxially stretched out, when needle pushes the first plectrum, second plectrum stirs intermediate transmission bar to push opening sealing-plug.As it can be seen that in the fuel gas plug valve of the utility model, due to adding intermediate transmission bar at electromagnetic valve air inlet, so as to accordingly optimize the structure of driving lever, in this way, the opening area of installation driving lever can be reduced, the installation for facilitating driving lever improves the leakproofness of the valve chamber of entire valve body.

Description

Fuel gas plug valve

Technical field

The utility model relates to household kitchen electric appliance fields, and in particular, to a kind of fuel gas plug valve.

Background technique

In daily kitchen range, fuel gas plug valve is for manually adjusting and controlling combustion gas on-off and regulating gas size Valve body generally includes other attachment devices such as valve body, spool, valve rod, microswitch and solenoid valve composition.Fuel gas plug valve Main operational principle is: combustion gas enters by valve body air inlet, successively passes through solenoid valve, subsequently into spool, finally passes through valve The side opening of core is connected with the lateral opening hole of escape pipe, and then realizes that gas-cooker, this is a complicated combustion for combustion gas Gas control process.

In fuel gas plug valve common at present, the overall structure of plug valve is complex, functional component, the components for including It is more, and the matching relationship between each functional component is also relatively complicated and close.Since amount of parts is in the majority, each other close Envelope faying face is more, and gas leakage risk is also larger.

Wherein, it is provided with valve seat on the valve body of conventional fuel gas plug valve, is provided with below valve seat for giving cock valve point The microswitch of fire, the microswitch fixed plate (or for microswitch connecting plate) for fixing the microswitch and for fixing With the split washer and locating piece of connection microswitch pressing plate.The lower section of locating piece is arranged in microswitch pressing plate one end, another The top of the trigger button of microswitch is arranged in end, when depressed stem, is located at microswitch pressing plate and positioning by compression Seating spring below block simultaneously drives microswitch pressing plate to press the trigger button of microswitch to trigger unlatching microswitch, knot Structure relationship is complex.

In addition, being provided with the needle for protruding into valve core inside below valve rod.Needle is able to drive during depressed stem It moving down and contradicts to the driving lever that can touch solenoid valve unlatching, first plectrum of one end of driving lever is connected to the bottom end of needle, Second plectrum of the other end abuts the sealing-plug of solenoid valve.Wherein, the second plectrum squeezes the same of the mobile opens solenoid valve of sealing-plug When, additionally it is possible to open electromagnetic valve air inlet and combustion gas be able to enter in solenoid valve, so as to gas circuit can by solenoid valve this Channel is simultaneously further connected.For this purpose, the structure of existing second plectrum is usually to have the hook-shaped plectrum in right angle, the end hook Shape structure needs to protrude into solenoid valve, so that driving lever overall structure is complex, and the installation space needed is larger.This Sample, in the existing structure, the bottom of valve body are equipped with the closure construction of rear cover, after driving lever is installed into valve chamber, then by rear cover Capping also needs that fastener and sealing element is arranged on the valve chamber of body base, with ensure rear cover fixed function and The leakproofness of valve chamber.

Utility model content

The purpose of the utility model is to provide a kind of fuel gas plug valve, the structure of the fuel gas plug valve is simpler, leakproofness It can be more preferable.

To achieve the goals above, the utility model provides a kind of fuel gas plug valve, including valve body, needle, driving lever and sets Set the solenoid valve in valve body air inlet gas circuit, the needle is vertically provided in valve chamber, one end of the driving lever be equipped with it is described The bottom end of needle abuts the first plectrum of transmission, and the other end of the driving lever is equipped with second group for triggering the solenoid valve Piece, the solenoid valve include the sealing-plug for blocking electromagnetic valve air inlet, and the front end of the sealing-plug is equipped with the centre coaxially stretched out Drive rod, when the needle pushes first plectrum, second plectrum stirs the intermediate transmission bar to push and open institute State sealing-plug.

Preferably, the intermediate transmission bar is plastic part or silica gel part.

Preferably, the intermediate transmission bar includes dissipating outward radially from a center and multiple outer wings of circumferentially spaced arrangement Piece, the number of the outer fin are not less than 3, form overcurrent air gap between the adjacent outer fin.

Preferably, the cross section of the intermediate transmission bar is tri-star, quadrangle star or five-pointed star.

Preferably, the intermediate transmission bar and the sealing-plug interval are arranged.

Preferably, the length L of the intermediate transmission bar is 4mm~8mm.

Preferably, the length of second plectrum is not more than the length of first plectrum.

Preferably, the valve body is integrally formed part, and the bottom periphery wall of the valve body is equipped with lateral direction penetrating to described Needle lower section and the driving lever mounting hole for being connected to the valve chamber, the driving lever insertion are installed in the driving lever mounting hole.

Preferably, pass-through entry of the driving lever mounting hole on the bottom periphery wall of the valve body is equipped with block head.

Preferably, the block head and the driving lever mounting hole are equipped with the fastening thread being mutually matched.

Through the above technical solutions, in the fuel gas plug valve of the utility model, due to being added at electromagnetic valve air inlet Intermediate transmission bar, so as to accordingly optimize the structure of driving lever, especially to driving lever for connecting electromagnetic valve air inlet one Hook-shaped group that electromagnetic valve air inlet one end is protruded on the second plectrum is cancelled in the structure optimization of second plectrum of the sealing-plug at end Piece, and then obtain the driving lever of this programme.In this way, the opening area of installation driving lever can be reduced, facilitate the installation of driving lever, is promoted The leakproofness of the valve chamber of entire valve body.

Other features and advantages of the utility model will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Attached drawing is to be used to provide a further understanding of the present invention, and constitute part of specification, and following Specific embodiment be used to explain the utility model together, but do not constitute limitations of the present invention.In the accompanying drawings:

Fig. 1 is a kind of existing perspective view of the fuel gas plug valve with rear cover, wherein for clarity, part-structure is not It shows；

Fig. 2 is the assembly explosive view of Fig. 1；

Fig. 3 is the perspective view according to the fuel gas plug valve of first preferred embodiment of the utility model；

Fig. 4 is the explosive view of Fig. 3；

Fig. 5 is the perspective view of intermediate transmission bar；

Fig. 6 is the top view of Fig. 3；

Fig. 7 is the top view of Fig. 3；

Fig. 8 is the cross-sectional view of the Section A-A in Fig. 7；

Fig. 9 is the partial enlarged view of the part I in Fig. 8；

Figure 10 and Figure 11 is the perspective view according to the valve seat of the first preferred embodiment of the utility model；

Figure 12 and Figure 13 is the perspective view according to the valve seat of second of preferred embodiment of the utility model；

Figure 14 is the perspective view according to the valve seat of the third preferred embodiment of the utility model；

Figure 15 and Figure 16 is the perspective view according to the fuel gas plug valve of second preferred embodiment of the utility model；

Figure 17 is the perspective view of the microswitch with inching switch pressing plate in Figure 14 and Figure 15；With

Figure 18 is a kind of explosive view for the microswitch that ground terminal connects metal earthing sheet.

Description of symbols

1 valve body, 2 valve seat

3 valve chamber, 4 valve rod

5 microswitch, 6 solenoid valve

7 needle, 8 driving lever

9 intermediate transmission bar, 10 block head

11 driving lever mounting hole, 12 rear cover

13 sealing ring, 14 fastener

21 valve rod via hole, 22 guide sleeve

23 lateral openings, 24 microswitch mounting frame

241 locating slots 41 linkage card slot

42 valve rod outer segment, 43 valve rod inner segment

44 linkage slots

The outer peripheral surface of 412 valve rod of top surface of 411 linkage card slots

413 knuckle, 51 trigger button

52 microswitch pressing plate, 53 ground terminal

54 metal earthing sheets

521 cantilever dip section, 522 linkage section

523 oblique press sections

81 first plectrum, 82 second plectrum

91 outer 92 overcurrent air gaps of fin

The length of L intermediate transmission bar

Specific embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.

In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually Be for direction shown in the drawings either for it is vertical, vertically or on gravity direction for each component mutual alignment Relationship description word.

For the problems such as in existing fuel gas plug valve, the interaction relation of microswitch is complex and components are more, The utility model provides a kind of novel fuel gas plug valve, which can effectively simplify part category, improves The use reliability of plug valve.

Referring to shown in Fig. 3, Fig. 7, Fig. 8 and Fig. 9, in the fuel gas plug valve of first preferred embodiment of the utility model In, which includes valve body 1, valve seat 2, protrudes into valve rod 4 and microswitch 5 in the valve chamber 3 of the lower section of valve seat 2, micro- Dynamic switch 5 is mounted on valve seat 2, and the periphery wall of valve rod 4 is equipped with the linkage card slot 41 being located at outside valve seat 2, microswitch 5 Trigger button 51 protrudes into linkage card slot 41 and is pressed triggering during the pushing of valve rod 4.

In the fuel gas plug valve of the utility model, due to will be moved on valve seat 2 on microswitch 5, and by microswitch 5 It directly links and is arranged with valve rod 2, and the structure of the fuel gas plug valve is effectively optimized and simplified, to eliminate existing Split washer, location hole, fine motion card pipe pressing plate, valve rod spring and microswitch fixed plate in some fuel gas plug valves etc. are at least 5 components, greatly reduce the usage quantity of components, reduce production cost, improve the assembling capacity of product and make With reliability etc..

At the same time, the linkage card slot 41 on valve rod 4 is set to the outer of valve seat 2 by the fuel gas plug valve of the utility model Portion, the trigger button 51 that may make microswitch 5 especially to protrude into linkage card slot 41 can directly be exposed, so as to To reduce due to the near contacts that are collected at after the sundries such as the soup that valve rod 4 is fallen between trigger button 51 and valve rod 4 It causes microswitch 5 to get rusty and even the problems such as misfire occurs with timeliness, further improve the reliability and use of product Performance.

When there is deviation or is easy to appear shaking using rear valve rod 4 for a long time in the accuracy of manufacture of valve rod 4, It is easy to cause the lower pressure surface of linkage card slot 41 to be difficult to touch the trigger button 51 of microswitch 5 during pushing valve rod 4, or Person, after pushing valve rod 4, the lower pressure surface of valve rod 4 compresses always trigger button 51, beats so as to cause the appearance of microswitch 5 missing of ignition Or the defective mode often lighted a fire.Can be by the pressure surface of change trigger button 51 to solve the problems, such as this to this, still, fine motion is opened 5 are closed usually as standard component, needs to be opened redesign once changing its shape, to spend certain cost, and cause Cost waste.For this purpose, particularly, in the fuel gas plug valve of the utility model, referring to Fig. 8 and Fig. 9, the card slot 41 that links is preferred For annular groove, the top surface 411 for the card slot 41 that links is planar annular and is formed with transition circle between the outer peripheral surface of valve rod 4 412 Angle 413, transition circle edged surface are formed as the pressure surface of pressing triggering trigger button 51.By linkage fluting 41 shape optimization, To cooperate the shape for the trigger button 51 that can be used as standard component, to effectively improve the product reliability of microswitch 5, save The production cost of product.

Further, it is pressed referring to the transition circle edged surface and the triggering with tapered plane for the card slot 41 that shown in Fig. 9 and Figure 18, links Line contact is formed as between button 51.In this way, there is tapered plane or other planes and trigger button compared to linkage card slot 41 Face contact is formed between 51, this programme contacts pressing specific surface during pressing valve rod 4 to trigger microswitch 5, using line Contact pressing is more laborsaving, presses more rapidly effective.

As it can be seen that microswitch 5 and trigger button 51 can be standard component in the fuel gas plug valve of the utility model, from And make that the versatility of the parts such as microswitch 5 and trigger button 51 is higher, cost is lower.

Further, in the linkage card slot 41 of valve rod 4, the radius of corner of knuckle 413 is not less than 0.5mm, with Can better contact with and interacting with trigger button 51 convenient for valve rod 4.

Wherein, to make the linkage card slot 41 on valve rod 4 be located at the outside of valve seat 2, the sheet referring to Figure 10 and Figure 11 is practical The valve seat 2 of the first novel preferred embodiment simultaneously combines shown in the fuel gas plug valve of Fig. 3 and Fig. 4, and valve seat 2 is equipped with valve rod via hole 21 and guide sleeve 22, guide sleeve 22 is arranged around valve rod via hole 21 and upwardly extends from the top surface of valve seat 2, and the periphery wall of guide sleeve 22 is set There are the lateral openings 23 towards 5 side of microswitch, the lateral openings 23 that trigger button 51 passes through guide sleeve 22 protrude into linkage card slot In 41.Therefore, in the fuel gas plug valve of the utility model, the top of valve seat 2, and the valve seat 2 is arranged in microswitch 5 Guide sleeve 22 with lateral openings 23, the guide sleeve 22 can stretch out upwards to shield and sustain on valve rod 4, so that valve rod 4 and guide sleeve 22 Between contact area it is bigger, the phenomenon that so as to further prevent valve rod 4 from shaking.In addition, logical compared to having Normal processing method uses the valve seat 2 of the guide sleeve 22 for being mounted laterally hole of drilling, the lateral openings 23 of the valve seat 2 in the utility model Process that is more convenient, and reducing one of drilling can be processed, save the cost is played with 2 integrally casting shaping of valve seat Effect.

To ensure effectively shielding and sustain highly for guide sleeve 22, the axial height range of guide sleeve 22 is not less than 8mm.

Also, the width gaps between the outer wall of trigger button 51 and the side wall of lateral openings 23 are not less than 1mm.In this way, By by the setting of lateral openings 23 enough to big, with ensure trigger button 51 after protruding into linkage card slot 41, lateral openings 23 It is sufficiently large that gap is installed, the phenomenon that because without sheltering evil people and countenance evil practices, and then antifouling antirust is played to trigger button 51, it is effectively true The service performance of microswitch 5 is protected.

Preferably, lateral openings 23 are the U-shaped opening extended downwardly from the top edge of guide sleeve 22, so that lateral openings 23 It can become and be open with the draft of 2 integrally casting shaping of valve seat.

Referring to the valve seat 2 of second of preferred embodiment of the utility model of Figure 12 and Figure 13 and in conjunction with Fig. 3's and Fig. 4 Shown in fuel gas plug valve, valve seat 2 is equipped with valve rod via hole 21 and guide sleeve 22, and guide sleeve 22 is arranged around valve rod via hole 21 and from valve seat 2 Top surface upwardly extend, linkage card slot 41 is located at the top of guide sleeve 22.Wherein, the top of valve seat 2 is arranged in microswitch 5, and And linkage card slot 41 and trigger button 51 are respectively positioned on the top of guide sleeve 22.This scheme is especially suitable for dimensional accuracy height, valve rod 4 not The fuel gas plug valve easily shaken facilitates the use for reducing material, playing reduces cost in this way, shortening the size of guide sleeve 22 Effect.Also, when the size of guide sleeve 22 enough in short-term, guide sleeve 22 also can be omitted, referring to the of the utility model of Figure 14 The valve seat 2 of three kinds of preferred embodiments, and belong to the protection scope of the utility model.

As shown in FIG. 10 to 14, the top end face of valve seat 2 may be provided with microswitch mounting frame 24, microswitch installation The locating slot 241 for installing microswitch 5 is provided on bracket 24, so that the installation effect of microswitch 4 is more steady Gu.

As shown in Figure 16 and Figure 17, in the fuel gas plug valve of second preferred embodiment of the utility model, the combustion gas Plug valve includes valve body 1, valve rod 4 and microswitch 5, and microswitch 5 includes trigger button 51 and microswitch pressing plate 52, valve rod 4 periphery wall is equipped with linkage slot 44, and the end of microswitch pressing plate 52 is protruded into linkage slot 44, and valve rod 4 pushes microswitch The end of pressing plate 52 is to press trigger button 51 by microswitch pressing plate 52.

Therefore, in the present solution, can be direct by microswitch 5 and valve rod 2 by the microswitch pressing plate 52 after remodeling Linkage, i.e., by the linkage slot 44 on the periphery wall for protruding into valve rod 4 of microswitch pressing plate 52, so that the fuel gas plug valve Structure it is more simple, reliable.Also, among these, mainly to the shape of the microswitch pressing plate 52 of itself of microswitch 5 It changes, such optimization can make the ontology of microswitch 5 still use standard component, not have in addition die sinking, it is only necessary to Change microswitch pressing plate 52, versatility is stronger.Meanwhile microswitch pressing plate 52 presses the trigger button of microswitch 5 51 can protect microswitch 5 to avoid contacting between valve rod 2 and trigger button 51 firmly, and that improves microswitch 5 uses the longevity Life.

Wherein, valve body 1 includes the valve seat 2 for being sealed on 1 top of valve body, and microswitch 5 is mounted on valve seat 2, and valve rod 4 wraps The valve rod inner segment 43 for protruding into valve chamber 3 and the valve rod outer segment 42 above valve seat 2 are included, linkage slot 44 is set to valve rod outer segment 42 On.In this way, the split washer in existing fuel gas plug valve, location hole, fine motion card pipe pressing plate, valve can also be cancelled in this programme At least five components of bar spring and microswitch fixed plate, reduce the usage quantity of components, reduce production cost,

Also, valve seat 2 is equipped with valve rod via hole 21 and guide sleeve 22 (referring to Figure 12, Figure 13 and Figure 14 and Figure 15 and Figure 16 institute Show), guide sleeve 22 is arranged around valve rod via hole 21 and upwardly extends from the top surface of valve seat 2, and linkage slot 44 is located at the top of guide sleeve 22. Therefore, it is particluarly suitable in the good situation of plug valve precision, is i.e. in the case that the shaking volume of valve rod 4 is sufficiently small, fine motion is opened It closes 5 and moves up installation to valve seat 2, can effectively shorten the length of guide sleeve 22, play the beneficial effect for saving material, cost declining.

Similarly, the axial height of guide sleeve 22 is not more than 10mm.Also, in the case that plug valve precision is good enough, valve Guide sleeve 22 on seat 2 also can be omitted, shown in Figure 14.

In addition, valve seat 2 is equipped with valve rod via hole 21 and guide sleeve 22 referring to shown in Figure 10 and Figure 11 and Figure 15 and Figure 16, lead Set 22 is arranged around valve rod via hole 21 and upwardly extends from the top surface of valve seat 2, and the periphery wall of guide sleeve 22 is equipped with towards microswitch 5 The lateral openings 23 of side, microswitch pressing plate 52 pass through the lateral openings 23 of guide sleeve 22 and protrude into linkage slot 44.By adding The phenomenon that extension elongation of long guide sleeve 22 can effectively shield and sustain valve rod 4, reduce and prevent valve rod 4 from shaking.

In this regard, similarly, the axial height of guide sleeve 22 is not less than 8mm.

As shown in figure 17, microswitch pressing plate 52 may include for pressing the oblique press section 523 of trigger button 51, level Protrude into the linkage section of the cantilever dip section 521 and connection oblique press section 523 and cantilever dip section 521 in linkage slot 44 522, one end of oblique press section 523 is fixed on microswitch 5.In this way, one end of the microswitch pressing plate 52 is pressed against touching 51 top of button is sent out, the other end protrudes into linkage slot 44, so that being able to drive microswitch pressing plate when pressing valve rod 4 52, which push triggering, opens microswitch 5.

Preferably, microswitch pressing plate 52 is the elastic metallic pressing plate for bending strip, to press microswitch pressing plate After 52 deformations, microswitch pressing plate 52 can restore in time, especially after pressing the deformation of microswitch pressing plate 52, oblique press section 523 one end can recoil to the top of trigger button 51 in time, the state often lighted a fire is in avoid trigger button 51, so as under Primary pressing igniting.

Wherein, for ensure microswitch pressing plate 52 can extend into linkage slot 44 in, and can with linkage slot 44 up and down Mobile and act, linkage slot 44 is the groove that groove depth is not less than 1mm, sufficient between microswitch pressing plate 52 and linkage slot 44 to ensure Enough contact surfaces.

It is shown in Figure 18, in the fuel gas plug valve of the utility model, it is provided with ground terminal 53 on microswitch 5, connects Ground terminal 53 is connected with the metal earthing sheet 54 for picking out from ground terminal 53 and connecting with valve body 1, to eliminate microswitch 5 The ground line drawn on ground terminal 53 has saved cost, while being also convenient for the assembly of microswitch 5.

In addition, the problems such as being directed to the valve chamber leakproofness of existing fuel gas plug valve, as depicted in figs. 1 and 2, in valve body 1 The structure of driving lever 8 is complex, occupied space is big, so that the construction opening of driving lever 8 is larger, accordingly, the bottom of valve body 1 It is provided with the rear cover 12 for closure base portion valve chamber 3, by multiple fasteners 14 that rear cover 12 is fixed on valve body 1 and is used for close The sealing ring 13 of envelope, in this regard, the utility model additionally provides a kind of novel fuel gas plug valve.Referring to Fig. 3, Fig. 4 and Fig. 6 institute Show, which includes valve body 1, needle 7, driving lever 8 and the solenoid valve 6 being arranged in valve body air inlet gas circuit, and needle 7 is vertical It is arranged in valve chamber 3, one end of driving lever 8 is equipped with the first plectrum 81 that transmission is abutted with the bottom end of needle 7, the other end of driving lever 8 Equipped with the second plectrum 82 for triggering solenoid valve 6, solenoid valve 6 includes the sealing-plug 61 for blocking electromagnetic valve air inlet, sealing-plug 61 front end is equipped with the intermediate transmission bar 9 coaxially stretched out, and when needle 7 pushes the first plectrum 81, the second plectrum 82 stirs intermediate biography Lever 9 opens sealing-plug 61 to push.

As it can be seen that in the fuel gas plug valve of the utility model, due to adding intermediate transmission bar 9 at electromagnetic valve air inlet, So as to accordingly optimize the structure of driving lever 8, especially to driving lever 8 for connecting the sealing-plug of electromagnetic valve air inlet one end The structure optimization of 61 the second plectrum 82, that is, cancel the hook-shaped plectrum that electromagnetic valve air inlet one end is protruded on the second plectrum 82, into And obtain the driving lever 8 as shown in Figure 4 of this programme.In this way, the opening area of installation driving lever 8 can be reduced, facilitate driving lever 8 Installation, improves the leakproofness of the valve chamber 3 of entire valve body 1.

Wherein, intermediate transmission bar 9 is preferably plastic part or silica gel part.In this way, being closed in the transmission of driving lever 8 and solenoid valve 6 Increase in system and is provided with one with elasticity or wear-resisting drive mechanism.Therefore, dialling using metal material can on the one hand be prevented Metal fillings is fallen after long-term friction between bar 8 (the second plectrum 82) and solenoid valve 6 (sealing-plug 61), leads to solenoid valve 6 The phenomenon that air inlet one end leaks air, still further aspect avoid driving lever 8 and contact with the hard of solenoid valve 6, protect solenoid valve 6, Extend the service life of solenoid valve 6.

Shown in Figure 5, intermediate transmission bar 9 includes the multiple outer of diverging and circumferentially spaced arrangement outward radially from a center Fin 91, the number of outer fin 91 are not less than 3, form overcurrent air gap 92 between adjacent outer fin 91.The purpose for the arrangement is that In order to enable there are gaps for the air inlet of solenoid valve 6, so that the second plectrum 82 when driving lever 8 stirs intermediate transmission bar 9 and pushes When opening sealing-plug 61, the combustion gas gas circuit between valve chamber 3 and solenoid valve 6 is connected.

Certainly, the shape of intermediate transmission bar 9 can there are many, it is preferable that the cross section of intermediate transmission bar 9 be tri-star (as shown in Figure 5), quadrangle star or five-pointed star.

Wherein, intermediate transmission bar 9 and the interval of sealing-plug 61 are arranged, i.e., intermediate transmission bar 9 is independently positioned in valve chamber 3, Its mounting means can be simply held in the valve chamber 3 of valve body 1, alternatively, the end of intermediate transmission bar 9 be bonded and fixed to it is close On blocking 61, facilitate the installation steps for reducing part, to improve production efficiency.

And according to the size of the installation space of actual valve chamber 3 and valve body 1, the size model of the length L of intermediate transmission bar 9 It encloses preferably for 4mm~8mm.

Wherein, in optimized driving lever 8, the length of the second plectrum 82 can be not more than the length of the first plectrum 81.

Particularly, valve body 1 is preferably integrally formed part, and the bottom periphery wall of valve body 1 is equipped with lateral direction penetrating to needle 7 Lower section and the driving lever mounting hole 11 for being connected to valve chamber 3, the insertion of driving lever 8 are installed in driving lever mounting hole 11.Wherein, driving lever mounting hole 11 Extend from the bottom periphery wall of valve body 1 into valve chamber 3, that is, in the fuel gas plug valve of the utility model, by the lower part of valve body 1 The rear cover 12 divided is integrated with valve body 1, that is, eliminates rear cover 12 and matched sealing ring 13 and for fixing rear cover 12 Two fasteners 14, referring to Fig. 1 and Fig. 2.Such improvement can reduce a sealing surface, to reduce plug valve gas leakage Risk, structure is simpler, improves the stability of valve body, and sealing performance is more preferable.

Meanwhile pass-through entry of the driving lever mounting hole 11 on the bottom periphery wall of valve body 1 is equipped with block head 10.

Also, block head 10 and driving lever mounting hole 11 are equipped with the fastening thread being mutually matched.Block head 10 and valve body 1 Using the mode that is removably installed, plug is used with the connection type of valve body and is threadedly coupled, when there is loading error in the inside, Such as driving lever 8 installation direction mistake when, plug can be dismantled, be reinstalled, feasibility is higher, design it is more simple, conjunction Reason.

Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above Detail in above embodiment can be to the skill of the utility model in the range of the technology design of the utility model Art scheme carries out a variety of simple variants, these simple variants belong to the protection scope of the utility model.

It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the utility model is to each No further explanation will be given for the possible combination of kind.

In addition, any combination can also be carried out between a variety of different embodiments of the utility model, as long as it is not disobeyed The thought for carrying on the back the utility model, equally should be considered as content disclosed in the utility model.

Claims (10)

1. a kind of fuel gas plug valve, including valve body (1), needle (7), driving lever (8) and the electromagnetism being arranged in valve body air inlet gas circuit Valve (6), the needle (7) are vertically provided in valve chamber (3), which is characterized in that one end of the driving lever (8) is equipped with and the valve The bottom end of needle (7) abuts the first plectrum (81) of transmission, and the other end of the driving lever (8) is equipped with for triggering the solenoid valve (6) the second plectrum (82), the solenoid valve (6) include the sealing-plug (61) for blocking electromagnetic valve air inlet, the sealing-plug (61) front end is equipped with the intermediate transmission bar (9) coaxially stretched out, described when the needle (7) pushes the first plectrum (81) Second plectrum (82) stirs the intermediate transmission bar (9) and opens the sealing-plug (61) to push.

2. fuel gas plug valve according to claim 1, which is characterized in that the intermediate transmission bar (9) is plastic part or silicon Glue part.

3. fuel gas plug valve according to claim 1, which is characterized in that the intermediate transmission bar (9) includes from center-diameter To outside diverging and multiple outer fins (91) of circumferentially spaced arrangement, the number of the outer fin (91) is adjacent not less than 3 Overcurrent air gap (92) are formed between the outer fin (91).

4. fuel gas plug valve according to claim 3, which is characterized in that the cross section of the intermediate transmission bar (9) is three Angle star, quadrangle star or five-pointed star.

5. fuel gas plug valve according to claim 1, which is characterized in that the intermediate transmission bar (9) and the sealing-plug (61) interval setting.

6. fuel gas plug valve according to claim 1, which is characterized in that the length L of the intermediate transmission bar (9) is 4mm ~8mm.

7. fuel gas plug valve according to claim 1, which is characterized in that the length of second plectrum (82) is not more than institute State the length of the first plectrum (81).

8. fuel gas plug valve according to claim 7, which is characterized in that the valve body (1) is integrally formed part, the valve The bottom periphery wall of body (1) is equipped with below lateral direction penetrating to the needle (7) and is connected to the driving lever mounting hole of the valve chamber (3) (11), driving lever (8) insertion is installed in the driving lever mounting hole (11).

9. fuel gas plug valve according to claim 8, which is characterized in that the driving lever mounting hole (11) is in the valve body (1) the pass-through entry on the periphery wall of bottom is equipped with block head (10).

10. fuel gas plug valve according to claim 9, which is characterized in that the block head (10) and the driving lever are installed Hole (11) is equipped with the fastening thread being mutually matched.