A kind of modified model plunger type Electromagnetic water pump
Technical field:
The utility model relates to the plunger type water pump technical field, refers in particular to a kind of modified model plunger type Electromagnetic water pump.
Background technique:
Traditional plunger (piston) formula water pump is because the characteristic of self structure, can't adapt in small-sized, the microminiaturized product.At present, small-sized plunger type Electromagnetic water pump has obtained using widely in every field, and particularly miniature plunger type water pump has obtained extensive use with the small and exquisite precision of its structure, and it can be applied in products such as coffee machine, steam generating device.The principle of plunger type Electromagnetic water pump is: plunger is not to utilize bent axle or applied external force, and plunger is a action of a magnetic field lower stress externally, carries out reciprocal operation.Wherein the external magnetic field is half-wave operation, and electromagnetic field only applies the power of compression direction (forward operation) to plunger, and the stressed spring that comes from water pump inside during plunger return (inverted running).Under the effect of electromagnetic force and spring force, plunger back and forth moves, and water is sucked by water intake, is pumped by water outlet.
Particularly; The plunger type water pump that existing market occurs comprises: the pump housing, be set in the outside electromagnetic coil of the pump housing, be installed in the inner magnetic core plunger of the pump housing; Be provided with one in its middle pump body and supply the cavity of plunger operation; The front end and back end of this cavity is provided with intake pipe and outlet pipe, in cavity, also is provided with spring, and this spring action is on the electromagnet core plunger.During work, electromagnetic coil produces magnetic force and promotes the plunger pressure spring, and outside water source is inhaled in the cavity through intake pipe; Because the magnetic force of electromagnetic coil is the half-wave operation, so when plunger ran to range, the magnetic force of electromagnetic coil disappeared, plunger will be carried out to initial position under spring action.The water that be inhaled in the cavity this moment will be ejected through outlet pipe.So, carry out the operation of pump water in the constantly back and forth operation of effect lower plunger of electromagnetic force and spring force.
Can find out piston structure of present plunger type water pump, the size of setting-out water yield when its pump water yield depends on each the compression from the above mentioned.Because the electromagnetic force of Electromagnetic water pump is certain, so only the area of piston is relevant for its hydraulic pressure.Because present plunger type Electromagnetic water pump is applied in some small household appliances usually, it is less demanding to injection flow rate, under specific circumstances, needs less injection flow rate and bigger hydraulic pressure, so that form farther water spray and littler water consumption.
The model utility content:
The utility model technical problem to be solved is improving on the product basis at present a kind of modified model plunger type Electromagnetic water pump to be provided.This Electromagnetic water pump can further reduce water consumption, and the hydraulic pressure when improving pump water.
In order to solve the problems of the technologies described above; The utility model has adopted following technical proposals: this modified model plunger type Electromagnetic water pump comprises: the pump housing, the magnetic core plunger that is installed in the outside electromagnetic coil module of the pump housing and is installed in pump housing inside; The described pump housing comprises: have the main sleeve pipe of water intake and have the anterior cannula of water outlet, wherein main sleeve pipe is threaded with anterior cannula; Offer in the described plunger one can be communicated with water intake and water outlet passage, in this passage, be provided with one-way cock; Be provided with the Returnning spring that acts on the plunger in plunger near water intake one end, be provided with the diameter prolongation plunger little near an end of water outlet, be provided with safety check between the end of this prolongation plunger and the water outlet than plunger in plunger.
Furthermore, in the technique scheme, described prolongation plunger is a hollow structure, and it has pre-and post perforative intake tunnel, and an end of this prolongation plunger is connected the water outlet of plunger channel, and the other end that prolongs plunger inserts in the end cover.
Furthermore, in the technique scheme, described end overlaps the position that an end is fixed on main sleeve pipe and anterior cannula junction, and the other end of end cover inserts in the passage of anterior cannula.
Furthermore, in the technique scheme, described end cover end is provided with described safety check.
Furthermore, in the technique scheme, described electromagnetic coil module is sheathed on the outside of main sleeve pipe, and plunger is arranged in the cavity of main sleeve pipe.
The utility model has following beneficial effect compared with prior art:
At first, the utility model is at the one-way valve of plunger set inside, and it has been limited stroke, has both reduced the flow of pump, also is pump more is prone to improve flow when a large amount of production accuracy.
Secondly, the utility model has increased by one and has prolonged plunger in traditional plunger front, and this diameter that prolongs plunger is less than traditional plunger, and current flow to pump housing water outlet direction by prolonging the plunger inner passage.When plunger outward " pressure " water, by prolonging plunger as " piston ", under the reduction of " piston " area, the constant situation of pressure (pressure of Returnning spring), pressure will become greatly, can improve the hydraulic pressure of pump water like this, reduce water displacement simultaneously like this.
Description of drawings:
Fig. 1 is the sectional view of the utility model;
Fig. 2 is another embodiment's of the utility model a sectional view.
Embodiment:
Below in conjunction with specific embodiment and accompanying drawing the utility model is further specified.
See shown in Figure 1ly, present embodiment comprises: the pump housing 1, electromagnetic coil module 2, plunger 3, Returnning spring 4 and prolong plunger 5.
The described pump housing 1 comprises: have the main sleeve pipe 11 of water intake 110 and have the anterior cannula 12 of water outlet 120, main sleeve pipe 11 is threaded with anterior cannula 12, constitutes cavity of the pump housing 1 in it.
Electromagnetic coil module 2 is installed in the outside of main sleeve pipe 11 in the pump housing 1, is installed in main sleeve pipe 11 inside in the pump housing 1 as the plunger 3 of magnetic core, and externally under the electromagnetic force effect of electromagnetic coil module 2 can before and after back and forth operation.Returnning spring 4 is arranged in the pump housing 1; Returnning spring 4 acts on the plunger 3; It is in the opposite direction that Returnning spring 4 acts on the electromagnetic force that elastic force direction and electromagnetic coil module 2 on the plunger 3 act on the plunger 3; After plunger 3 carried out compression reseting spring 4, plunger 3 Returnning springs 4 capable of using in time resetted, thereby realized the reciprocal operation of plunger 3.
Offer in the above-mentioned plunger 3 one can be communicated with water intake 110 and water outlet 120 passage, 120 are provided with one-way cock 6 in this passage; Described Returnning spring 4, is provided with near an end of water outlet 120 in plunger 3 and prolongs plunger 5 near water intake 110 1 ends in plunger 3, is provided with safety check 7 between the end of this prolongation plunger 5 and the water outlet 120.
Above-mentioned one-way cock 6 comprises: extension spring 61 and valve 62, an end of extension spring 61 is positioned at the end of plunger 3 passages, and through channel end extension spring 61 is formed restriction.Extension spring 61 is inserted in the passage of plungers 3, and is connected with valve head as valve 2, and valve 2 is with the passage obstruction of plunger 3.This valve 62 remains on normally off through being arranged on extension spring 61 tensions in plunger 3 passages with plunger 3 passages, refluxes when preventing the operation of plunger 3 to a dextrad left side.After the hydraulic pressure on outside plunger 3 right sides reaches certain numerical value, who will promote valve 2, thereby make plunger 3 inner passages unimpeded, realize pumping of current.
Prolonging plunger 5 also is the sleeve pipe of a hollow, and it has pre-and post perforative intake tunnel.Prolong the port that plunger 4 one ends are set in plunger 3 passages left side, with plunger 3 interlocks.Its other end inserts in the end cover 8.One end of end cover 8 is fixed on the position of main sleeve pipe 11 and anterior cannula 12 junctions, and the other end of end cover 8 inserts in the passage of anterior cannula 12.Described end overlaps 8 ends and is provided with described safety check 7.
The spring one-way cock structure that described safety check 7 adopts, it comprises valve head 71 and spring 72, valve head 71 is resisted against the outlet of end cover 8 under spring 72 effects, will hold cover 8 sealings, prevents that the water that pumps from refluxing.
During work, when electromagnetic coil module 2 generation half-wave frequency conversion magnetic fields, i.e. the magnetic force of electromagnetic coil module 2 generations is the magnetic force in the same way of interval interrupt.This magnetic force will promote as the right operation of plunger 3 to the left-hand of magnetic core.At this moment, along with the operation of plunger 3, the main sleeve pipe 11 inner chamber body spaces that are positioned at plunger 3 right sides will be compressed, and the hydraulic pressure in this space increases, and current will be washed one-way cock 6 open, enter into through plunger 3 passages to prolong plunger 5, and flow into end cover 8 inner spaces.Along with the operation of plunger 3, plunger 3 is with the resistance of receiving Returnning spring 4 simultaneously.When the magnetic force of electromagnetic coil module 2 interrupts; Plunger 3 will reset rapidly down in Returnning spring 4 effect (promptly moving) to a dextrad left side; This moment, end cover 8 formed a piston structure with prolongation plunger 5; Prolong suction formation pressure in the plunger 5 opposite ends cover 8, and push safety check 9 open, the water pump in the anterior cannula 12 is gone out.The operation of pump water is accomplished in operation so repeatedly.Certainly, when using first, owing to also do not suck water in the whole pump housing 1; So what begin to pump most only is air, after the air in the pump housing 1 pumped fully, current just were pumped out; Since air pump principle and above-mentioned water to pump principle identical, give unnecessary details no longer one by one here.
The utility model adopts said structure, and it has adopted the structure that prolongs plunger 5, and it can form farther bulk range.
See shown in Figure 2ly, this is another mode of execution of the utility model, and its structure is similar to the above embodiments, gives unnecessary details no longer one by one here.
Certainly; The above is merely the specific embodiment of the utility model; Be not to limit the utility model practical range, all equivalences of doing according to the said structure of the utility model claim, characteristic and principle change or modify, and all should be included in the utility model claim.