The bistable electromagnetic valve of integrative-structure
Technical field
The present invention relates to the solenoid valve technical field, relate in particular to a kind of bistable electromagnetic valve of integrative-structure.
Background technique
Usually the bistable electromagnetic valve arrangement comprises valve body and solenoid electric valve, be provided with the rubber membrane and the rubber skeleton of matched together between the valve seat of electromagnetism main control valve and the valve of valve body, all there is a through hole neutral position of rubber skeleton and position, next door, have on the rubber membrane two with rubber skeleton on the corresponding hole of through hole, the rubber plug of solenoid electric valve heads on the intermediate throughholes in the rubber skeleton, be equipped with a little pin of stainless steel diversion on the valve seat, and the water conservancy diversion aperture on the insertion rubber skeleton, liquid at valve inleting water mouth place flows to out the water regulator that a can regulate water yield is housed between the die cavity, valve body between regulator and electromagnetism main control valve has an opening cavity, filter screen is equipped with at liquid flow inlet and outlet place in the die cavity, on be stamped the filter screen lid.Though be furnished with regulating water-quantity, impurity screening and prevent device such as water conservancy diversion aperture obstruction,, this complex structure, there is comparatively complicated mistakes water lines valve seat inside, component layouts disorderly, inconvenience is keeped in repair.
Summary of the invention
Technical problem to be solved by this invention is the present situation at prior art, and a kind of simple in structure, bistable electromagnetic valve of being convenient to assemble maintenance, volume is little, cost is low, reliable performance is stable integrative-structure is provided.
The present invention solves the problems of the technologies described above the technological scheme that is adopted: the bistable electromagnetic valve of integrative-structure, comprise the electromagnetism valve head that is fitted on the valve body, wherein: the electromagnetism valve head comprises and is shaped on externally threaded case, case is threaded with the valve body that is shaped on internal thread, the case inner chamber is fitted with coil rack, the coil rack waist is provided with coil, on the coil rack hollow inner chamber be sequentially with mutually equipped fixed core, in be provided with moving iron core, the plug of adhesive spring, be provided with the first sealing O type circle in the annular groove of fixed core; Coil rack hollow lower inner cavity is sequentially with equipped mutually anti-blocking needle spring, piston membrane core, rubber membrane; The coil rack bottom is shaped on and is provided with first shielding iron plate and the secondary shielding iron plate that is interlocked in the outer groove; Rubber diaphragm sealed spiral-lock is in the case lower end mouth; The coil rack upper end is provided with magnet, and the case mouth is provided with the coil case lid, and fixes through the shell latch; Coil leads to the anti-opposition plug wire of suit coil sheath, and coil jackets is positioned at coil case and covers; The straight moving piston cylinder operator of the equipped formation of piston membrane core and rubber membrane; The first shielding iron plate and secondary shielding iron plate and case, coil case lid are formed shielding space.
The technical measures of taking also comprise:
Above-mentioned valve body is provided with valve body relief hole, valve body water outlet and valve inleting water mouth.
Above-mentioned coil leads to the anti-opposition plug wire of suit coil sheath, and coil jackets is positioned at coil case and covers.
Be provided with the second sealing O type circle and the 3rd sealing O type circle in the annular groove of above-mentioned piston membrane core upper end.
Above-mentioned rubber membrane bottom surface is shaped on a pressurized hole.
Above-mentioned anti-opposition plug wire is in off-position, moving iron core is in normally off, the valve body relief hole is in closed condition: dynamic media enters by the pressurized hole of valve inleting water mouth through rubber membrane, at this moment, the rubber membrane downforce forms pressure reduction less than the rubber membrane upward pressure, simultaneously under the spring force effect of anti-blocking needle spring, make the rubber membrane can be, the dynamic media stop conducting near the closed valve relief hole.
Above-mentioned anti-opposition plug wire is in "on" position, and coil gets electric generation electromagnetic force, and moving iron core electromagnetic force is greater than the spring force of adhesive spring, and with the fixed core adhesive, moving iron core is mentioned, and the valve body relief hole is on state; The rubber membrane downforce is disequilibrium greater than the rubber membrane upward pressure, and rubber membrane moves to opening state by original closed condition simultaneously, and the dynamic media order flows out through valve body relief hole, valve body water outlet place.
Above-mentioned anti-opposition plug wire power failure state, coil losing electricity loses electromagnetic force, and moving iron core electromagnetic force is less than the spring force of adhesive spring, and fixed core loses moving iron core adhesive, and moving iron core resets, and the valve body relief hole is in closed condition; The rubber membrane downforce is less than the rubber membrane upward pressure, and rubber membrane moves to closed condition by original opening state, the dynamic media stop conducting simultaneously.
Compared with prior art, the inner water-out manners of the present invention adopts straight moving piston cylinder operator, and performance is simpler than diaphragm structure, and usability is reliable and stable, and sealing effect is better, and the impact noise of medium reduces greatly, improves working life greatly; And it is the bistable operation mode of DC pulse that signal type is provided, and adopts screw thread fixing compared with fixing more solid and reliable, convenient, attractive in appearance with four screws; Common valve seat that save inside and set screw combination are assembled also conveniently, save time, and increase work efficiency greatly, reduce cost; The outside full stainless iron that adopts, avoid air, ambient temperature is moist and get rusty, problem of oxidation.
Description of drawings
Fig. 1 is an embodiment of the invention assembled state cross-sectional schematic;
Fig. 2 is the decomposing state schematic representation of Fig. 1;
Fig. 3 is the electromagnetism valve head decomposing state schematic representation of Fig. 2.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment as shown in Figure 1 to Figure 3, figure grade explanation: case 1, coil rack 2, coil 3, plug 4, the first shielding iron plate 5, anti-blocking needle spring 7, piston membrane core 8, rubber membrane 9, valve body relief hole 11, valve body water outlet 12, valve body 13, valve inleting water mouth 14, coil jackets 15, pressurized hole 16, the second sealing O type circle 17, the 3rd sealing O type circle 18, secondary shielding iron plate 20, moving iron core 22, fixed core 24, the first sealing O type circle 25, magnet 26, coil case lid 27, shell latch 28, the anti-plug wire 29 of opposing.
The embodiment of the invention, the bistable electromagnetic valve of integrative-structure, comprise the electromagnetism valve head that is fitted on the valve body 13, it is characterized in that: the electromagnetism valve head comprises and is shaped on externally threaded case 1, case 1 is threaded with the valve body 13 that is shaped on internal thread, case 1 inner chamber is fitted with coil rack 2, coil rack 2 waists are provided with coil 3, on coil rack 2 hollows inner chamber be sequentially with mutually equipped fixed core 24, in be provided with moving iron core 22, the plug 4 of adhesive spring 23, be provided with the first sealing O type circle 25 in the annular groove of fixed core 24; Coil rack 2 hollow lower inner cavities are sequentially with equipped mutually anti-blocking needle spring 7, piston membrane core 8, rubber membrane 9; Coil rack 2 bottoms are shaped on and are provided with first shielding iron plate 5 and the secondary shielding iron plate 20 that is interlocked in the outer groove; Rubber membrane 9 seal buckles are contained in case 1 lower end mouth; Coil rack 2 upper ends are provided with magnet 26, and case is provided with coil case lid 27 for 1 mouthful, and fixing through shell latch 28; Coil 3 leads to the anti-opposition plug wire 29 of suit coil sheath 15, and coil jackets 15 is positioned on the coil case lid 27; Piston membrane core 8 and the straight moving piston cylinder operator of rubber membrane 9 equipped formations; The first shielding iron plate 5 and secondary shielding iron plate 20 are formed shielding space with case 1, coil case lid 27.
Valve body 13 is provided with valve body relief hole 11, valve body water outlet 12 and valve inleting water mouth 14.Coil 3 leads to the anti-opposition plug wire 29 of suit coil sheath 15, and coil jackets 15 is positioned on the coil case lid 27.Be provided with the second sealing O type circle 17 and the 3rd sealing O type circle 18 in the annular groove of piston membrane core 8 upper ends.Rubber membrane 9 bottom surfaces are shaped on a pressurized hole 16.Piston membrane core 8 and the straight moving piston cylinder operator of rubber membrane 9 equipped formations.The double sealing structure good seal performance, the impact noise of medium reduces greatly.
The anti-plug wire 29 of opposing is in off-position, moving iron core 22 is in normally off, valve body relief hole 11 is in closed condition: dynamic media enters by the pressurized hole 16 of valve inleting water mouth 14 through rubber membrane 9, at this moment, rubber membrane 9 downforce form pressure reduction less than the rubber membrane upward pressure, simultaneously under the spring force effect of anti-blocking needle spring 7, make the rubber membrane 9 can be, the dynamic media stop conducting near closed valve relief hole 11.
The anti-plug wire 29 of opposing is in "on" position, and coil 3 gets electric generation electromagnetic force, and moving iron core 22 electromagnetic forces are greater than the spring force of adhesive spring 23, and with fixed core 24 adhesives, moving iron core 22 is mentioned, and valve body relief hole 11 is on state; Rubber membrane 9 downforce are disequilibrium greater than the rubber membrane upward pressure, and rubber membrane moves to opening state by original closed condition simultaneously, and the dynamic media order flows out through valve body relief hole 11, valve body water outlet 12 places.
Anti-plug wire 29 power failure states of opposing, coil 3 dead electricity lose electromagnetic force, and moving iron core 22 electromagnetic forces are less than the spring force of adhesive spring 23, and fixed core 24 loses moving iron core 22 adhesives, and moving iron core 22 resets, and valve body relief hole 11 is in closed condition; Rubber membrane 9 downforce are less than the rubber membrane upward pressure, and rubber membrane moves to closed condition by original opening state, the dynamic media stop conducting simultaneously.
The invention provides signal type is the bistable operation mode of DC pulse, and it has directly moving piston cylinder operator type, is in the normal close type control mode when outage, is that electric energy changes the signal transfer mode that magnetic energy rotates energy.
The resistance of coil 3 of the present invention is 30 Ω, and service voltage of the present invention is direct current 6V, signal pulse width: 30ms-40ms, response time: open valve≤0.5S: close valve≤2S; Working pressure: 0.05MPa-0.8Mpa.
The structure-integrated design of the present invention adopts screw thread fixing compared with fixing more solid and reliable, convenient, attractive in appearance with four screws; Inner water-out manners adopts straight moving piston cylinder operator, and performance is simpler than diaphragm structure, and usability is reliable and stable, and sealing effect is better, improves working life greatly; Common valve seat that save inside and set screw combination are assembled also conveniently, save time, and increase work efficiency greatly, reduce cost; The outside full stainless iron that adopts, avoid air, ambient temperature is moist and get rusty, problem of oxidation.
Most preferred embodiment of the present invention is illustrated, and various variations or the remodeling made by those of ordinary skills can not depart from the scope of the present invention.