CN2313185Y

CN2313185Y - Flow-regulating valve of gas regulator

Info

Publication number: CN2313185Y
Application number: CN 97218108
Authority: CN
Inventors: 蔡肇训
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-30
Filing date: 1997-05-30
Publication date: 1999-04-07
Anticipated expiration: 2007-05-30

Abstract

The utility model relates to a flow regulating valve of a gas regulator. The circumference of a valve body is provided with an intake path and an outlet path. Ladder-shaped containing chambers with different sizes are arranged in the valve body. A priming perch is sheathed in the containing chamber at the lower part in a sliding way. A flow regulating knob is screwed under the blocking piece of the priming perch in the containing chamber at the lower part. A push rod passes through the containing chamber at the upper part from the bottom to the top. The upper section of the push rod is positioned in the groove of an upper convex body of the valve body. A pressing cap movably cover the upper part of the convex body and is provided with an inner screw hole which is screwed with the screw section of the push rod. A spring is axially sheathed between the convex pole of the pressing cap and the periphery of the push rod. The utility model is characterized in that the lower part of the seal components of the push rod downward extends along the axial direction, forming an extended section with a guiding groove; the perch body section of the priming perch is matched with the guiding groove in a sliding and inserting way.

Description

A kind of flow control valve of gas regulator

The utility model relates to the flow control valve of a kind of gas regulator, particularly a kind of gas regulator.

The structure of the flow control valve of present gas regulator as depicted in figs. 1 and 2, be provided with an inlet channel 20 and an outlet passageway 21 in the both sides of valve body 2, be provided with the stepped room 22 that varies in size in the valve body, above valve body, establish the less convex body of a diameter 25, it in the convex body 25 groove 26, in groove 26, wear a push rod 3 from bottom to top, the sheathed seal 32 in top at the obstruction sheet 310 of push rod bottom, be provided with the thread segment 30 that is connected with pressure cap 5 inner bolt holes 50 in push rod 3 top sections, axially the outside of push rod 3 is with spring 4 between pressure cap 5 endoporus and groove 26 bottoms, activity is equiped with the citation rod 6 that a bottom is with seal 62 in the bottom of valve body room 22, is screwed a flow adjusting knob 7 in valve body 1 bottom screw 23.Adjusting knob 7 has one to twist a card division and a thread segment 70, and a jacking block 71 is arranged at its top.

The operation principle of this control valve is, at ordinary times, combustion gas is to be entered in the room 22 by inlet channel 20, again by outlet passageway 21 outputs, when the kitchen range that are connected with outlet passageway 21 break down or the super flow of combustion gas and causing when leaking, because the combustion gas of gas leakage end (being outlet passageway 21) carries flow velocity greater than input (being inlet channel 20), make the pressure in the room 22 hold (being outlet passageway 21) interior pressure greater than gas leakage, and destroy original pressure balance and build-up of pressure poor, at this moment, because pressure differential and flow velocity have overcome the weight of citation rod 6, thereby citation rod is risen block outlet passageway, fail in order to avoid combustion gas continues to leak with the confession of automatic cut-out combustion gas, in the time of after outlet passageway 21 connects the kitchen range fault discharge of establishing, need opening again, then push pressure cap 5 downwards, driving push rod 3 moves down so that citation rod is pushed away the recovery channel status 6 times.

The above-mentioned course of work by this valve is not difficult to find out, has following shortcoming on its structure at present.

The the 1st: because citation rod 6 upper ends are holdless free state, be far from being enough,,, simultaneously, can not guarantee the reliable control of flow referring to Fig. 2 so cause the citation rod generation to be offset and cause gas leakage and depend the guiding of blocking sheet 61 in its bottom alone.

The 2nd: when pressing pressure cap 5 instantly, 310 of the bottom of push rod 3 obstruction sheets can't align with the citation rod upper end and guarantee that accurately pressing down of citation rod resets.

The 3rd: citation rod 6 easily skew blocks, can cause motion smooth, control malfunctioningly, and can cause hidden danger.

The purpose of this utility model just is to overcome the above-mentioned shortcoming and defect of prior art, and provides a kind of stable, safe and reliable, and it is stuck and have a flow control valve of the gas regulator that opens and closes flexible characteristics to be difficult for skew.

The purpose of this utility model is to realize by following technical scheme:

Be provided with inlet channel and outlet passageway in all sides of valve body, in valve body, be provided with the stepped room that varies in size, slip suit one citation rod in the room of bottom, below the obstruction sheet of the citation rod of bottom room, be screwed a flow adjusting knob, in superior part holding chamber, wear a push rod from bottom to top, the epimere of push rod is arranged in the groove of the last convex body of valve body, one pressure cap movable button covers on convex body top and is provided with the push rod thread segment and revolves the inner bolt hole that connects mutually, between the projection of pressure cap and push rod periphery, axially be arranged with spring, it is characterized in that: be extended with an extension that has a direction recess vertically downwards in the bottom of the seal of push rod, the body of rod section of citation rod and direction recess is slippery plugs.

Therefore: remarkable result of the present utility model is as follows:

The 1st: since push rod be provided with one can with the citation rod epimere extension that has direction recess of fit mutually, can guarantee when citation rod moves up and down vertically reliable and stable, and can not take place askew partially, therefore, can guarantee that the citation rod lower seal is to the break-make accurately of passage and the reliably working of control valve.

The the 2nd: because being provided with of direction recess can guarantee that citation rod can not produce deflection radially when axially-movable, so can prevent from effectively to be offset the stuck phenomenon that produces because of citation rod, simultaneously, can not take place to produce the drawback that life-span descends and sealing effectiveness descends that concentrated wear causes because of the skew of end seal under the citation rod yet.

Concrete structure of the present utility model is realized by the following examples and accompanying drawing:

Fig. 1 is the section of structure of existing flow valve.

Fig. 2 produces the state diagram of skew when being the motion of existing flow valve.

Fig. 3 is STRUCTURE DECOMPOSITION figure of the present utility model.

Fig. 4 is a section of structure of the present utility model.

Fig. 5 is a working state figure of the present utility model.

Be described in detail below in conjunction with 3 to 5 pairs of concrete structures of the present utility model of accompanying drawing.

Be provided with inlet channel 20 and outlet passageway 21 in valve body 2 all sides, in valve body 2, be provided with the stepped room 22 that varies in size, slip suit one citation rod 6 in bottom room 22, below the obstruction sheet 61 of the citation rod 6 of bottom room 22, be screwed a flow adjusting knob 7, in superior part holding chamber 22, wear a push rod 3 from bottom to top, the epimere of push rod 3 is arranged in the groove 26 of the last convex body 25 of valve body 2, one pressure cap, 5 movable buttons cover on convex body 25 tops and are provided with push rod 3 thread segments 30 and revolve the inner bolt hole 51 that connects mutually, between the projection 50 of pressure cap 5 and push rod 3 peripheries, axially be arranged with spring 4, it is characterized in that: be extended with an extension 31 that has a direction recess 311 vertically downwards in the bottom of the seal 32 of push rod 3, the body of rod section 60 and direction recess 311 slippery the plugging of citation rod 6.Referring to Fig. 3 and Fig. 4.

The extension 31 of push rod 3 is arranged in the superior part holding chamber 22 of valve body 1 and presents thick, two thin ladder sections down, and other of extension 31 and the push rod 3 that is arranged in valve body 1 upper grooves 26 partly is an overall structure.Referring to Fig. 3 and Fig. 4.

Operation principle of the present utility model is identical with prior art, but the effect of its work and stability are different from existing control valve, its reason just is that push rod 3 set up a direction recess 311 that can slide and plug together mutually with citation rod 6 epimeres 60, so, when citation rod 6 is mobile down in the axial direction, be in coaxial position up and down, and can not be offset.So open and close very reliable.Referring to Fig. 5.

Claims

1, a kind of flow control valve of gas regulator, be provided with inlet channel (20) and outlet passageway (21) in all sides of valve body (2), in valve body (2), be provided with the stepped room (22) that varies in size, slip suit one citation rod (6) in bottom room (22), obstruction sheet (61) below at the citation rod (6) of bottom room (22) is screwed a flow adjusting knob (7), in superior part holding chamber (22), wear a push rod (3) from bottom to top, the epimere of push rod (3) is arranged in the groove (26) of the last convex body (25) of valve body (2), one pressure cap (5) movable button covers on convex body (25) top and is provided with and the inner bolt hole (51) of push rod (3) thread segment (30) Xiang Xuanlian, between the projection (50) of pressure cap (5) and push rod (3) periphery, axially be arranged with spring (4), it is characterized in that: be extended with an extension (31) that has direction recess (311) vertically downwards in the bottom of the seal (32) of push rod (3), the body of rod section (60) of citation rod (6) and slippery the plugging of direction recess (311).

2, according to the flow control valve of the described a kind of gas regulator of claim 1, it is characterized in that: the extension (31) of push rod (3) is arranged in the superior part holding chamber (22) of valve body (1) and presents thick, two thin ladder sections down, and other of extension (31) and the push rod (3) that is arranged in valve body (1) upper grooves (26) partly is an overall structure.