阅读说明：本技术 一种可调节泡沫液比例的混合器 (A kind of mixer of adjustable foam liquid proportional ) 是由 李亚飞 黄斌 赵芮 蔡姚杰 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种可调节泡沫液比例的混合器,包括混合管、第一管道、第二管道、液动薄膜执行器、控制阀、支架和上端调节模块；上端调节模块、液动薄膜执行器、支架、控制阀和混合管从上至下依次连接；控制阀包括阀体、阀座、阀杆、阀瓣和中间隔层,液动薄膜执行器包括执行器上壳体、执行器下壳体、橡胶薄膜、薄膜压紧套、薄膜下托、执行机构阶梯杆、填料螺套、压套螺母和填料函；上端调节模块包括固定法兰、法兰端盖、阀罩、调节弹簧、导向套、调节弹簧上托、调节弹簧下托、调节螺钉和锁紧螺母；本发明通过液动薄膜执行器的设计能够有效解决泡沫液混合比例的问题,使混合比范围控制在3％～6％,具有很高的可靠性和更大的泡沫液储量。(The invention discloses a kind of mixers of adjustable foam liquid proportional, including mixing tube, first pipe, second pipe, the film actuator that surges, control valve, bracket and upper end adjustment module；Upper end adjustment module, surge film actuator, bracket, control valve and mixing tube are sequentially connected from top to bottom；Control valve includes valve body, valve seat, valve rod, flap and intermediate interlayer, and the film actuator that surges includes actuator upper housing, actuator lower case, rubber film, film compression set, film subiculum, executing agency's stepped stem, filler swivel nut, pressing sleeve nut and stuffing-box；Upper end adjustment module includes mounting flange, flange end cap, valve bonnet, adjustment spring, guide sleeve, adjustment spring pop-up, adjustment spring subiculum, adjusts screw and locking nut；The problem of present invention can effectively solve the problem that foam solution mixed proportion by the design for the film actuator that surges makes mixing ratio scope control 3%~6%, has very high reliability and bigger foam solution reserves.)

1. a kind of mixer of adjustable foam liquid proportional, it is characterised in that: including mixing tube (1), first pipe (2), second Pipeline (3), the film actuator (4) that surges, control valve (5), bracket (6) and upper end adjustment module (7)；The upper end adjustment module (7), surge film actuator (4), bracket (6), control valve (5) and mixing tube (1) is sequentially connected from top to bottom；The mixing tube (1) it is horizontally arranged, one end of mixing tube (1) is the water inlet of fire water, and the other end of mixing tube (1) is the liquid out of mixed liquor Mouthful；Mixing tube (1) is provided with water outlet (14) close to the water inlet side upper end of fire water, and the middle part upper end of mixing tube (1) is opened Equipped with foam inlet tube (15)；

The control valve (5) includes valve body (51), valve seat (52), valve rod (53), flap (54) and intermediate interlayer (55), the valve It is provided with uuper valve chamber (56) and lower valve chamber (57) in body (51), uuper valve chamber (56) and lower valve chamber (57) with valve body (51) by connecting The intermediate interlayer (55) being integrated separates, and seals against each other between lower valve chamber (57) and lower valve chamber (57), valve seat (52) installation On the intermediate interlayer (55) of valve body (51)；The lower end setting of the valve rod (53) is in lower valve chamber (57), flap (54) installation In the lower end of valve rod (53), flap (54) initial position is connected with valve seat (52), and valve rod (53) movement drives flap (54) It moves downward, uuper valve chamber (56) and lower valve chamber (57) are interconnected at this time；The upper end of valve rod (53) sequentially passes through valve, valve seat (52), the lower end of actuator stem is connected after the outer wall of uuper valve chamber (56) and valve body (51) by link block (416)；The valve body (51) foam solution entrance, foam solution first outlet (58) and foam solution second outlet (59), the foam solution entrance are offered on Be connected with uuper valve chamber (56), the foam solution first outlet (58) and foam solution second outlet (59) with lower valve chamber (57) phase Connection；The foam solution entrance passes through the external foam gear pump of pipeline, the first foam outlet and the foam feed liquor on mixing tube (1) Pipe (15) is connected；

The other end of the water outlet (14) of one end connection mixing tube (1) of the first pipe (2), first pipe (2) connects liquid Water inlet on the actuator upper housing (41) of dynamic film actuator (4)；One end of the second pipe (3) connects the film that surges Inlet in the actuator lower case (42) of actuator (4), the other end of second pipe (3) connect second on valve body (51) Foam outlet；

The film actuator (4) that surges include actuator upper housing (41), actuator lower case (42), rubber film (43), Film compression set (44), executing agency's stepped stem (46), filler swivel nut (47), pressing sleeve nut (48), compresses film subiculum (45) Nut (410) and stuffing-box (49)；The actuator upper housing (41) is bolted to connection with actuator lower case (42), Executing agency's stepped stem (46) includes the first stepped stem (413), the second stepped stem that from top to bottom diameter successively increases (414) and third stepped stem (415), under the clamp nut (410), film compression set (44), rubber film (43) and film Support (45) is successively sleeved on from top to bottom on the second stepped stem (414), and the second stepped stem (414) upper end is provided with and clamp nut (410) external screw thread matched, clamp nut (410) are tightened on the second stepped stem (414) by external screw thread, clamp nut (410) support is formed to film compression set (44) upper end on the second stepped stem (414)；The edge of the rubber film (43) is logical It crosses actuator upper housing (41) and actuator lower case (42) clamps, actuator upper housing (41) and actuator lower case (42) shape At inner cavity the upper end cavity (411) and lower end cavity (412) sealed against each other is separated by rubber film (43)；The third rank Pressing sleeve nut (48) and filler swivel nut (47) are set in ladder bars (415), pressing sleeve nut (48) is sleeved on stuffing-box (49), fills out Material letter (49) is welded on actuator lower case (42), and filler swivel nut (47) is sleeved on stuffing-box (49) inside and filler swivel nut (47) upper end holds out against the lower end of film subiculum (45)；The lower end of executing agency's stepped stem (46) is connected by link block (416) Connect valve rod (53) upper end of control valve (5), the guide sleeve of upper end connection upper end adjustment module (7) of executing agency's stepped stem (46) (75)；

The lower end of the bracket (6) is provided with flange base (62), and flange base (62) connects the upper end of valve body (51)；Bracket (6) lower end of upper end connection actuator lower case (42)；

The upper end adjustment module (7) includes mounting flange (71), flange end cap (72), valve bonnet (73), adjustment spring (74), leads To set (75), adjustment spring pop-up (77), adjustment spring subiculum (76), adjust screw (78) and locking nut (79)；It is described solid The lower end for determining flange (71) is welded on actuator upper housing (41), the upper end of the flange end cap (72) and mounting flange (71) It is fixedly connected with and is formed the flange chamber of sealing, the guide sleeve (75) is fixed on actuator lower case (42), under adjustment spring Support (76) is sleeved on guide sleeve (75), and the upper end of executing agency's stepped stem (46) passes through guide sleeve (75) and is fixed on adjustment spring In subiculum (76)；The adjusting screw (78) passes through flange end cap (72), and the upper end for adjusting screw (78) connects locking nut (79), the lower end adjustment spring pop-up (77) intracavitary with flange for adjusting screw (78) is fixedly connected, adjustment spring (74) it is upper End is connected on adjustment spring pop-up (77), and the lower end of adjustment spring (74) is connected on adjustment spring subiculum (76).

2. a kind of mixer of adjustable foam liquid proportional according to claim 1, it is characterised in that: the bracket (6) On be fixed with valve stroke graduated scale (61).

3. a kind of mixer of adjustable foam liquid proportional according to claim 1, it is characterised in that: the upper end is adjusted Module (7) further includes valve bonnet (73), and valve bonnet (73) is sleeved on locking nut (79) and adjusts on the outside of screw (78) and to the two shape At sealing.

4. a kind of mixer of adjustable foam liquid proportional according to claim 1, it is characterised in that: the control valve (5) it is provided with mounting flange (510) at foam solution entrance and foam solution first outlet (58), the foam of control valve (5) Liquid entrance and foam solution first outlet (58) connect foam gear pump and mixing tube (1) by mounting flange (510) respectively Foam inlet tube (15).

5. a kind of mixer of adjustable foam liquid proportional according to claim 1, it is characterised in that: the mixing tube (1) water inlet end is provided with arrival end ring flange (11), and the liquid outlet end of the mixing tube (1) is provided with outlet end flange disk (12), it offers upper flanges disk (13), mixes at the foam inlet tube (15) of the foam inlet tube (15) of the mixing tube (1) It manages (1) and connects water inlet line by arrival end ring flange (11), mixing tube (1) connects outlet pipe by outlet end flange disk (12) Road.

6. a kind of mixer of adjustable foam liquid proportional according to claim 1, it is characterised in that: the link block It (416) include that the lower end connecting tube being connected as one connects in the connecting tube of geosynclinal block lower end with upper end and is provided with threaded cylinder Chamber, the upper end of valve rod (53) being threadedly engaged and being tightened in the connecting tube of lower end by external screw thread and cylindrical cavity, upper end link slot T-slot is provided on block, actuator stem lower end is provided with the T-type link block (416) matched with T-slot, actuator stem The connection for realizing that actuator stem connect geosynclinal block with upper end in T-slot is inlaid in by T-type link block (416).

Technical field

The present invention relates to combiner technique fields, more specifically, more particularly to a kind of adjustable foam liquid proportional it is mixed Clutch.

Background technique

Foam solution proportioner is core equipment and critical component in froth fire extinguishing system, is that a kind of will be stored in bubble The circulating water of concentrated foam liquid and access device in foam liquid storage tank is mixed according to required certain proportion, and being formed has ideal The foam device of the foam firefighting liquid of extinguishing property.The purpose is to energy continuous productions to go out to meet defined mix-froth liquid, and obtain To apply the work in fire-fighting foams extinguishing operation and fire preventing field, the quality of working performance is directly related to foam and goes out The success or failure that fiery system fights a fire.Froth fire extinguishing system has many advantages, such as that installation is reliable, economical and practical, fire-fighting efficiency is high, especially Superiority outstanding is had more to fighting B class fire, is the basic fighting mode of current home and abroad oil fire.

The index for measuring the most critical of a foam proportioner performance quality is the mixing ratio of foam and water.And it is existing Foam proportioner there is the disadvantages of operating mixture ratio is unstable, the pressure loss is larger, and mixing ratio range is 6% or more, Its reliability is lower, foam solution reserves are insufficient.

Summary of the invention

It is an object of the invention to solve existing foam proportioner operating mixture ratio is unstable, the pressure loss is larger, Mixing ratio range proposes a kind of adjustable foam solution 6% or more caused reliability is low, problem of foam solution reserves deficiency The mixer of ratio not only significantly improves the stability of operating mixture ratio, reduces the pressure loss, and can effectively solve The problem of certainly mixing liquid proportional makes mixing ratio control 3%~6%, and the foam proportioner compared to positive-pressure type type has Higher reliability, bigger foam solution reserves.

The present invention is through the following technical solutions to achieve the above objectives: a kind of mixer of adjustable foam liquid proportional, packet Include mixing tube, first pipe, second pipe, the film actuator that surges, control valve, bracket and upper end adjustment module；The upper end Adjustment module, surge film actuator, bracket, control valve and mixing tube are sequentially connected from top to bottom；

The mixing tube is horizontal positioned, and one end of mixing tube is the water inlet of fire water, and the other end of mixing tube is mixed liquor Liquid outlet；Mixing tube is provided with water outlet close to the water inlet side upper end of fire water, and the middle part upper end of mixing tube offers bubble Foam inlet tube；

The control valve includes valve body, valve seat, valve rod, flap and intermediate interlayer, is provided with uuper valve chamber and lower valve in the valve body Chamber, uuper valve chamber and lower valve chamber are mutually close between lower valve chamber and lower valve chamber by separating with the intermediate interlayer that valve body is connected as one Envelope, the valve seat are mounted on the intermediate interlayer of valve body；The lower end of the valve rod is arranged in lower valve chamber, and flap is mounted on valve rod Lower end,

The flap initial position is connected with valve seat, and stem movement drives flap to move downward, at this time uuper valve chamber and lower valve chamber phase It is intercommunicated；The upper end of valve rod sequentially passes through and connects executing agency by link block after the outer wall of valve, valve seat, uuper valve chamber and valve body The lower end of bar；

Foam solution entrance, foam solution first outlet and foam solution second outlet, the foam solution entrance are offered on the valve body It is connected with uuper valve chamber, the foam solution first outlet and foam solution second outlet are connected with lower valve chamber；The foam solution Entrance is connected by the external foam gear pump of pipeline, the first foam outlet with the foam inlet tube on mixing tube；

The water outlet of one end connection mixing tube of the first pipe, the other end of first pipe connect the film actuator that surges Water inlet on actuator upper housing；One end of the second pipe connects in the actuator lower case for the film actuator that surges Inlet, the other end of second pipe connect the second foam outlet on valve body；

The film actuator that surges includes actuator upper housing, actuator lower case, rubber film, film compression set, film Subiculum, executing agency's stepped stem, filler swivel nut, pressing sleeve nut and stuffing-box；The actuator upper housing and actuator lower case It is bolted to connection, executing agency's stepped stem includes the first stepped stem that from top to bottom diameter successively increases, second Stepped stem and third stepped stem, the clamp nut, film compression set, rubber film and film subiculum are successively set with from top to bottom In the second stepped stem, the second stepped stem upper end is provided with the external screw thread matched with clamp nut, and clamp nut passes through outer spiral shell Line is tightened in the second stepped stem, and clamp nut forms support to the film compression set upper side in the second stepped stem；The rubber The edge of film is formed by actuator upper housing and the clamping of actuator lower case, actuator upper housing and actuator lower case Inner cavity is separated into the upper end cavity and lower end cavity sealed against each other by rubber film；Pressing sleeve spiral shell is set in the third stepped stem Female and filler swivel nut, pressing sleeve nut are sleeved on stuffing-box, and stuffing-box is welded in actuator lower case, and filler swivel nut is sleeved on Inside stuffing-box and filler swivel nut upper end holds out against the lower end of film subiculum；The lower end of executing agency's stepped stem passes through link block Connect the valve rod upper end of control valve, the guide sleeve of the upper end connection upper end adjustment module of executing agency's stepped stem；

The lower end of the bracket is provided with flange base, and flange base connects the upper end of valve body；The upper end of bracket connects actuator The lower end of lower case；

The upper end adjustment module include mounting flange, flange end cap, valve bonnet, adjustment spring, guide sleeve, adjustment spring pop-up, Adjustment spring subiculum adjusts screw and locking nut；The lower end of the mounting flange is welded on actuator upper housing, the method Blue end cap is fixedly connected with the upper end of mounting flange and forms the flange chamber of sealing, and the guide sleeve is fixed on actuator lower case On, adjustment spring subiculum is sleeved on guide sleeve, and the upper end of executing agency's stepped stem passes through guide sleeve and is fixed under adjustment spring In support；The adjusting screw passes through flange end cap, adjusts the upper end connection locking nut of screw, adjusts lower end and the flange of screw Intracavitary adjustment spring pop-up is fixedly connected, and the upper end of adjustment spring is connected in adjustment spring pop-up, the lower end of adjustment spring It is connected in adjustment spring subiculum.

Further, valve stroke graduated scale is fixed on the bracket.

Further, the upper end adjustment module further includes valve bonnet, and valve bonnet is sleeved on locking nut and adjusts on the outside of screw And the two is formed and is sealed.

Further, it is provided with mounting flange at the foam solution entrance of the control valve and foam solution first outlet, The foam solution entrance of control valve and foam solution first outlet pass through mounting flange respectively and connect foam gear pump and mixing tube Foam inlet tube.

Further, the water inlet end of the mixing tube is provided with arrival end ring flange, the liquid outlet end of the mixing tube It is provided with outlet end flange disk, upper flanges disk is offered at the foam inlet tube of the foam inlet tube of the mixing tube, is mixed Pipe connects water inlet line by arrival end ring flange, and mixing tube connects outlet conduit by outlet end flange disk.

Further, the link block includes that the lower end connecting tube being connected as one connects geosynclinal block lower end connecting tube with upper end Inside it is provided with threaded cylindrical cavity, the upper end of valve rod is threadedly engaged by external screw thread and cylindrical cavity and is tightened on lower end connection In pipe, it is provided with T-slot on upper end connection geosynclinal block, actuator stem lower end is provided with the T-type link block matched with T-slot, Actuator stem is inlaid in the connection for realizing that actuator stem connect geosynclinal block with upper end in T-slot by T-type link block.

Specific workflow of the invention is as follows: the present invention uses the working principle of balanced type foam solution proportioner, The foam solution entrance of valve body connects foam gear pump, and foam dope passes through foam solution entrance under the pressure effect of foam gear pump Into in the uuper valve chamber of control valve, the flap in control valve is pushed open downwards, by generating pressure drop, foam behind the unlatching section of flap Stoste flows into lower valve chamber by valve, and foam dope is by the two parts that are divided into of lower valve chamber at this time, and a part is by foam solution First outlet flows into mixing tube, and another part flows into the film actuator that surges by foam solution second outlet and second pipe In the cavity of lower end；At the same time, fire water enters in mixing tube from the water inlet of mixing tube, and water outlet is passed through in a part of fire water Enter in the upper end cavity for the film actuator that surges with first pipe, another part fire water with by the foam solution on control valve the The foam dope mixing of one outlet outflow, forms the foam dope of certain mixing ratio, is sent out by the liquid outlet of mixing tube；Go out at this time The mixing ratio of the mixed liquor of liquid mouth is maintained at 3%~6% volume ratio.

The beneficial effects of the present invention are:

1, the problem of present invention can effectively solve the problem that foam solution mixed proportion by the design for the film actuator that surges, makes mixing ratio Scope control has very high reliability and bigger foam solution reserves 3%~6%.

2, the present invention can set balance by the way that valve stroke graduated scale and top adjustment spring are arranged on bracket Than to obtain the mixed proportion of the foam solution of needs, valve stroke graduated scale can clearly adjust situation and carry out naked eyes Observation.

3, the present invention realizes upper end cavity and the lower end for the film actuator that surges using the up and down motion of control valve valve rod The volume of cavity is controllable, thus realize the ratio of foam and water in the upper end cavity and lower end cavity for the film actuator that surges, into And realize the adjusting of froth ratio.

4, the present invention can effectively prevent internal grease or oil liquid to outward leakage using the flap of stem bottom.

5, the present invention can automatically adjust the internal pressure in actuator according to the film actuator that surges, and it is mixed to reach foam Composition and division in a proportion is constant, efficiently avoids water pressure fluctuations, the unstable situation of caused mixing ratio.

6, the pressure of the lower chamber of the film actuator that surges of the invention is consistently greater than the pressure of fire-fighting pressure water, it is ensured that Fire-fighting pressure water does not flow into valve body cavity of resorption, guarantees the steady operation of entire mechanism.

Detailed description of the invention

Fig. 1 is a kind of overall structure diagram of the mixer of adjustable foam liquid proportional of the present invention.

Fig. 2 is a kind of schematic cross-sectional view of the mixer of adjustable foam liquid proportional of the present invention.

Fig. 3 is the schematic cross-sectional view of upper end adjustment module of the present invention.

Fig. 4 is the schematic cross-sectional view of the film actuator of the invention that surges.

Fig. 5 is the structural schematic diagram of bracket of the present invention.

Fig. 6 is the schematic cross-sectional view of control valve of the present invention

Fig. 7 is the schematic cross-sectional view of mixing tube of the present invention.

Fig. 8 is the structural schematic diagram of link block of the present invention.

Fig. 9 is the structural schematic diagram of executing agency's stepped stem of the present invention.

In figure, 1- mixing tube, 2- first pipe, 3- second pipe, 4- surge film actuator, 5- control valve, 6- bracket, The upper end 7- adjustment module, 11- arrival end ring flange, 12- outlet end flange disk, 13- upper flanges disk, 14- water outlet, 15- bubble Under foam inlet tube, 41- actuator upper housing, 42- actuator lower case, 43- rubber film, 44- film compression set, 45- film Support, 46- executing agency stepped stem, 47- filler swivel nut, 48- pressing sleeve nut, 49- stuffing-box, 410- clamp nut, the upper end 411- Cavity, the lower end 412- cavity, the first stepped stem of 413-, the second stepped stem of 414-, 415- third stepped stem, 416- link block, 51- Valve body, 52- valve seat, 53- valve rod, 54- flap, 55- intermediate interlayer, 56- uuper valve chamber, 57- lower valve chamber, 58- foam solution first go out Mouth, 59- foam solution second outlet, 510- mounting flange, 61- valve stroke graduated scale, 62- flange base, 71- fixation Orchid, 72- flange end cap, 73- valve bonnet, 74- adjustment spring, 75- guide sleeve, 76- adjustment spring subiculum, the pop-up of 77- adjustment spring, 78- adjusts screw, 79- locking nut.

Specific embodiment

The present invention will be further explained below with reference to the attached drawings:

As shown in figure 1-9, a kind of mixer of adjustable foam liquid proportional, including mixing tube 1, first pipe 2, second pipe 3, it surges film actuator 4, control valve 5, bracket 6 and upper end adjustment module 7；The upper end adjustment module 7, the film that surges execute Device 4, bracket 6, control valve 5 and mixing tube 1 are sequentially connected from top to bottom.The both ends of first pipe 2 are connected to the film that surges On actuator 4 and mixing tube 1, the both ends of second pipe 3, which are connected to, surges on film actuator 4 and control valve 5.

The mixing tube 1 is horizontal positioned, and one end of mixing tube 1 is the water inlet of fire water, and the other end of mixing tube 1 is mixed Close the liquid outlet of liquid；Mixing tube 1 is provided with water outlet 14 close to the water inlet side upper end of fire water, on the middle part of mixing tube 1 End offers foam inlet tube 15.The water inlet end of the mixing tube 1 is provided with arrival end ring flange 11, the mixing tube 1 Liquid outlet end is provided with outlet end flange disk 12, offers at the foam inlet tube 15 of the foam inlet tube 15 of the mixing tube 1 Upper flanges disk 13, mixing tube 1 connect water inlet line by arrival end ring flange 11, and mixing tube 1 passes through outlet end flange disk 12 Connect outlet conduit.The water inlet of mixing tube 1 is for intaking, and the liquid outlet of mixing tube 1 goes out liquid for foam mixing liquid, i.e., originally The final water outlet of device.

The control valve 5 includes valve body 51, valve seat 52, valve rod 53, flap 54 and intermediate interlayer 55, is set in the valve body 51 Be equipped with uuper valve chamber 56 and lower valve chamber 57, uuper valve chamber 56 and lower valve chamber 57 by the intermediate interlayer 55 that is connected as one with valve body 51 every It opens, is sealed against each other between lower valve chamber 57 and lower valve chamber 57, the valve seat 52 is mounted on the intermediate interlayer 55 of valve body 51；The valve The lower end of bar 53 is arranged in lower valve chamber 57, and flap 54 is mounted on the lower end of valve rod 53,54 initial position of flap and valve seat 52 are connected, and the movement of valve rod 53 drives flap 54 to move downward, and uuper valve chamber 56 and lower valve chamber 57 are interconnected at this time；Valve rod 53 it is upper It is connected under actuator stem after holding the outer wall for sequentially passing through valve, valve seat 52, uuper valve chamber 56 and valve body 51 by link block 416 End；Foam solution entrance, foam solution first outlet 58 and foam solution second outlet 59, the foam solution are offered on the valve body 51 Entrance is connected with uuper valve chamber 56, and the foam solution first outlet 58 and foam solution second outlet 59 are connected with lower valve chamber 57 It is logical；The foam solution entrance passes through the external foam gear pump of pipeline, the first foam outlet and the foam inlet tube 15 on mixing tube 1 It is connected.

It is provided with mounting flange 510 at the foam solution entrance and foam solution first outlet 58 of the control valve 5, is controlled The foam solution entrance and foam solution first outlet 58 of valve 5 connect foam gear pump and mixing tube 1 by mounting flange 510 respectively Foam inlet tube 15.

The water outlet 14 of one end connection mixing tube 1 of the first pipe 2, the other end connection of first pipe 2 are surged thin Water inlet on the actuator upper housing 41 of film actuator 4；One end of the second pipe 3 connects the film actuator 4 that surges Inlet in actuator lower case 42, the other end of second pipe 3 connect the second foam outlet on valve body 51.

The film actuator 4 that surges includes actuator upper housing 41, actuator lower case 42, rubber film 43, film Clamping sleeve 44, film subiculum 45, executing agency's stepped stem 46, filler swivel nut 47, pressing sleeve nut 48, clamp nut 410 and filler Letter 49；The actuator upper housing 41 is bolted to connection with actuator lower case 42, executing agency's stepped stem 46 The first stepped stem 413, the second stepped stem 414 and the third stepped stem 415 successively increased including diameter from top to bottom, the compression Nut 410, film compression set 44, rubber film 43 and film subiculum 45 are successively sleeved on from top to bottom in the second stepped stem 414, Second stepped stem, 414 upper end is provided with the external screw thread matched with clamp nut 410, and clamp nut 410 is tightened by external screw thread In the second stepped stem 414, clamp nut 410 covers 44 upper ends to the film compression in the second stepped stem 414 and forms support；It is described The edge of rubber film 43 is clamped by actuator upper housing 41 and actuator lower case 42, actuator upper housing 41 and actuator The inner cavity that lower case 42 is formed is separated into the upper end cavity 411 and lower end cavity 412 sealed against each other by rubber film 43；Described Pressing sleeve nut 48 and filler swivel nut 47 are set in three stepped stems 415, pressing sleeve nut 48 is sleeved on stuffing-box 49, stuffing-box 49 It is welded in actuator lower case 42, filler swivel nut 47 is sleeved on 49 inside of stuffing-box and 47 upper end of filler swivel nut is held out against under film The lower end of support 45；The lower end of executing agency's stepped stem 46 connects 53 upper end of valve rod of control valve 5 by link block 416, holds The guide sleeve 75 of the upper end connection upper end adjustment module 7 of row mechanism stepped stem 46.

The lower end of the bracket 6 is provided with flange base 62, and flange base 62 connects the upper end of valve body 51；Bracket 6 it is upper The lower end of end connection actuator lower case 42.

The upper end adjustment module 7 includes mounting flange 71, flange end cap 72, valve bonnet 73, adjustment spring 74, guide sleeve 75, adjustment spring pop-up 77, adjustment spring subiculum 76, adjusting screw 78 and locking nut 79；The lower end of the mounting flange 71 It is welded on actuator upper housing 41, the flange end cap 72 is fixedly connected with the upper end of mounting flange 71 and forms the method for sealing Blue chamber, the guide sleeve 75 are fixed in actuator lower case 42, and adjustment spring subiculum 76 is sleeved on guide sleeve 75, execute machine The upper end of structure stepped stem 46 passes through guide sleeve 75 and is fixed in adjustment spring subiculum 76；The adjusting screw 78 passes through flange end cap 72, the upper end for adjusting screw 78 connects locking nut 79, adjusts lower end and the intracavitary adjustment spring pop-up 77 of flange of screw 78 It is fixedly connected, the upper end of adjustment spring 74 is connected in adjustment spring pop-up 77, and the lower end of adjustment spring 74 is connected to adjusting bullet In spring subiculum 76.The upper end adjustment module 7 further includes valve bonnet 73, and valve bonnet 73 is sleeved on locking nut 79 and adjusts outside screw 78 Side simultaneously forms sealing to the two.

Valve stroke graduated scale 61 is fixed on the bracket 6.

The link block 416 includes that the lower end connecting tube being connected as one connects setting in the connecting tube of geosynclinal block lower end with upper end There is a threaded cylindrical cavity, the upper end of valve rod 53 is threadedly engaged by external screw thread and cylindrical cavity and is tightened on lower end connecting tube It is interior, it is provided with T-slot on upper end connection geosynclinal block, actuator stem lower end is provided with the T-type link block 416 matched with T-slot, Actuator stem is inlaid in T-slot by T-type link block 416 and realizes that actuator stem connect the connection of geosynclinal block with upper end.

Above-described embodiment is presently preferred embodiments of the present invention, is not a limitation on the technical scheme of the present invention, as long as Without the technical solution that creative work can be realized on the basis of the above embodiments, it is regarded as falling into the invention patent Rights protection scope in.