CN105570062A

CN105570062A - Vacuum pumping efficient and energy-saving electromagnetic device

Info

Publication number: CN105570062A
Application number: CN201610082744.1A
Authority: CN
Inventors: 徐昌正
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-02-06
Filing date: 2016-02-06
Publication date: 2016-05-11

Abstract

The invention provides a vacuum pumping efficient and energy-saving electromagnetic device, and belongs to the filed of automobile hydraulic braking vacuum boosting. An electromagnetic coil of the vacuum pumping efficient and energy-saving electromagnetic device is fixed outside a negative pressure case; a protection case is fixed on the negative pressure case; an air extraction pipe is fixed at the lower end of the negative pressure case; an air outlet valve is fixed in a center hole of the negative pressure case; an iron core spring and a magnetic induction piston are arranged in the negative pressure case; the iron core spring jacks and presses the lower end surface of the magnetic induction piston; a sealing cap seals air extraction passages of an air extraction cavity and an air extrusion cavity; a fixing plug is fixed in a plug hole formed in the magnetic induction piston; and a sealing ball or a sealing cone is arranged in an inner cone hole. The vacuum pumping efficient and energy-saving electromagnetic device has the advantages that the structure is compact; the vibration is small; the electric energy utilization rate is high; the power is strong; the vacuum pumping efficient and energy-saving electromagnetic device is suitable to be used for installing vacuum boosting hydraulic braking electric automobiles and internal-combustion engine automobiles; after an internal-combustion engine stops operation, the vacuum can also be normally generated, and the vacuum boosting can be realized; the industrialization market prospects are good; the commercial value is high; and the manufacturing and the use are very convenient.

Description

Vacuumize high-efficiency energy-saving electric magnetic device

Technical field

The present invention relates to a kind of for give automobile brake master cylinder vacuum booster produce vacuum power vacuumize high-efficiency energy-saving electric magnetic device.

Background technique

The vacuum pump that traditional automobile uses adopts bias to lay eggs formula, lays eggs to produce suction when rotated and carry out bleeding and vacuum.

Summary of the invention

The object that the present invention relates to is to provide a kind of electromagnetic linear to pull piston movement to bleed and vacuum manufacture and the method thereof vacuumizing high-efficiency energy-saving electric magnetic device.

For achieving the above object, the high-efficiency energy-saving electric magnetic device that vacuumizes of the present invention mainly comprises protecting crust, electromagnetic coil, negative pressure shell, bleeder hole, ball sealer or sealing cone, sealed cap, iron core spring, answers magnetic piston, fixed plug, internal taper hole, vent, gas outlet valve, exhaust tube, field controller, electronic remote controller;

Or the described high-efficiency energy-saving electric magnetic device that vacuumizes mainly comprises protecting crust, electromagnetic coil, negative pressure shell, bleeder hole, ball sealer or sealing cone, sealed cap, iron core spring, answers magnetic piston, fixed plug, internal taper hole, vent, gas outlet valve, exhaust tube, field controller.

In protecting crust, be provided with electromagnetic coil, electromagnetic coil is fixed on the lower part outside negative pressure shell, and protecting crust is fixed on the outside protection electromagnetic coil of the lower part of negative pressure shell; Below the outside of protecting crust, one side is fixed with foot rest, and the lower end of foot rest protects exhaust tube not oppressed lower than negative pressure shell lower end, and the lower end of foot rest is fixed on the vehicle frame of automobile.

The circuit connecting electromagnetic coil is connected with field controller, the circuit of field controller is connected with electronic remote controller, electronic remote controller is connected with insulated electric conductor, and the electronic signal receiver of field controller, electronic remote controller and electronic remote controller is arranged in protecting crust; Or the circuit connecting electromagnetic coil is connected with field controller, and the circuit of field controller is connected with insulated electric conductor, and field controller is arranged in protecting crust.

Sealed cap, iron core spring are installed in negative pressure shell, answer magnetic piston, fixed plug, magnetic piston is answered to be arranged on the upper part of the inner chamber of negative pressure shell, iron core spring fitting is at the lower part of the inner chamber of negative pressure shell, the lower end of iron core spring is pressed in lower end in negative pressure shell, top, upper end is pressed in the underpart of answering magnetic piston, answers magnetic piston can slide up and down in the inner chamber of negative pressure shell; The sealing neck of answering the lower part of the consent in magnetic piston is provided with sealed cap, the capped pipe part of sealed cap can slide up and down on the periphery of sealing neck, in consent, be provided with fixed plug to limit sliding distance during sealed cap upward sliding, the fixing employing interference fit of fixed plug in consent is fixed or screw-thread fit is fixed or adopt jump ring to be stuck in the two ends of the jump-ring slot internal fixtion fixed plug in consent; The passage of bleeding of answering on magnetic piston can be closed when the inner sealing surface that the inner top of sealed cap divides coordinates with annular sealing surface and seals, when the inner sealing surface that the inner top of sealed cap divides separates with annular sealing surface, the passage of bleeding of answering on magnetic piston can be opened; On the periphery of the sealing neck of the lower end in negative pressure shell, cover has sealed cap, and the periphery of the sealing neck of the lower end of sealed cap in negative pressure shell can slide up and down; Inner sealing surface in sealed cap coordinates the passage of bleeding that can seal or open and enter in negative pressure shell with the annular sealing surface of sealing neck end; When answering magnetic piston stroking upward, the inner chamber part of answering the negative pressure shell of magnetic piston lower part is pumping chamber; When answering magnetic descent of piston, the inner chamber part of the negative pressure shell of magnetic piston upper part is answered to be squish chamber.Be fixed with exhaust tube at the bleeder hole place of the lower end of negative pressure shell, the other end of exhaust tube is connected with vacuum tank, and the endoporus of exhaust tube communicates with bleeder hole and vacuum tank; Be provided with gas outlet valve in the upper end of negative pressure shell, the lower part of gas outlet valve is fixed in the center hole of the overlying one end of negative pressure shell, and the upper-end surface of negative pressure shell is exposed in the upper end of gas outlet valve.

The material of described protecting crust is the material of a type in metal, plastics, nylon, glass fibre reinforced plastics or several types; A type in material employing metal, plastics, nylon and the glass fibre reinforced plastics of hollow valve body and negative pressure shell or the material of several types; A type in material employing metal, plastics, nylon and the rubber of ball sealer or sealing cone or the material of several types; A type in material employing metal, plastics, nylon and the glass fibre reinforced plastics of sealed cap or the material of several types; The material of magnetic piston is answered to be can the material of hard to bear magnetic field suction; The material of fixed plug is the material of a type in metal, plastics, nylon, glass fibre reinforced plastics, rubber or several types; The material that iron core spring adopts is the material of a type in metal and rubber or two types, and when adopting rubber material, iron core spring is the spring of hollow pipe-type, utilizes the elasticity of rubber and contractibility to realize the function of spring.

Described protecting crust is the hollow cavity of annular, hollow cavity there is string holes, the parts installed in field controller, electromagnetic coil and negative pressure shell and negative pressure shell are installed in hollow cavity, or, the parts installed in electronic remote controller, field controller, electromagnetic coil and negative pressure shell and negative pressure shell are installed in hollow cavity; String holes is the hole allowing insulated electric conductor pass; The inner of the annular housing of hollow cavity is fixed on negative pressure shell.

For the ease of protecting crust processing and be convenient to accessory to load in protecting crust, described protecting crust is the assemblying body after segmentation, and after the annular position of protecting crust is divided into two parts, recombinant is together.

The inner chamber of described negative pressure shell is circular cylindrical cavity, and the cylndrical surface of columniform cavity is smooth curved surface; Upper end on the center line of inner chamber has that center hole passes negative pressure shell, lower end has bleeder hole to pass negative pressure shell; There is sealing neck protruding upward at the middle part of the lower end in negative pressure shell, the upper end portion of sealing neck is annular sealing surface, the inside of sealing neck is bleeder hole, when the inner sealing surface of sealed cap does not seal with annular sealing surface, bleeder hole is communicated with pumping chamber by air passing hole, and the inner sealing surface of sealed cap coordinates with the annular sealing surface of sealing neck.

Described gas outlet valve comprises hollow valve body and ball sealer or sealing and bores, and hollow valve body is hollow tubular, and internal taper hole is in the middle part of the inner chamber of hollow tubular or middle and lower part, and the internal diameter of the upper part of the internal taper hole in hollow tubular internal diameter that is large, lower part is little; There is return-air sealed end the lower end of hollow valve body, the lower end surface of return-air sealed end in the lower end of hollow valve body, upper-end surface is internal taper hole, the large end of internal taper hole communicates with the upper end of gas outlet valve, small end communicates with the lower end of gas outlet valve, and the inner conical surface of internal taper hole is provided with ball sealer or sealing cone.Described internal taper hole is the circular hole having tapering, and the face of circular hole is inner conical surface; The small end of internal taper hole under, hold upper greatly, the sphere of inner conical surface and ball sealer or seal the male cone (strobilus masculinus) of boring and coordinate, can inner conical surface be sealed under the effect of the gravity of ball sealer or sealing cone self, inner conical surface and ball sealer can be opened by suction when having suction on ball sealer or sealing cone or seal the passage of boring and sealing; The air pressure that ball sealer or sealing are bored above is larger, and the gluing, sealing effect of ball sealer or sealing cone and inner conical surface is better; Inner conical surface and ball sealer can be opened when being with the air of pressure from the endoporus of hollow valve body lower end or seal the sealing of boring and form passage.

For the ease of negative pressure shell processing and be convenient to accessory to load in negative pressure shell, described negative pressure shell is the assemblying body after segmentation; The upper end of the circular cylindrical cavity part in negative pressure shell is divided into two sections, the main body that the upper part of segmentation place is pump cover, lower part is negative pressure shell, center hole is on pump cover, and bleeder hole is at the middle part of the main body lower end of negative pressure shell, and the body combination of pump cover and negative pressure shell becomes a composite entity; Or, the lower end of the circular cylindrical cavity part in negative pressure shell is divided into two sections, the main body that the lower part of segmentation place is pump cover, upper part is negative pressure shell, bleeder hole is at the middle part of pump cover, center hole is at the middle part of the upper end of the main body of negative pressure shell, and the body combination of pump cover and negative pressure shell becomes a composite entity.

Described magnetic piston of answering is columniform iron core, and the periphery of columniform iron core is smooth periphery, and smooth periphery has the annular groove of depression, and annular groove is embedded with seal ring; Described periphery coordinates with the inner chamber of negative pressure shell can the inner chamber of sealed negative-pressure shell, and can slide in the inner chamber of negative pressure shell.There is penetration hole the cylindrical central portion position of described columniform iron core, and penetration hole communicates with squish chamber and pumping chamber; The upper part of described penetration hole runs through the upper-end surface of iron core, lower part runs through iron core lower end surface, the lower part of penetration hole is vent, the upper part of penetration hole is consent, the sealing neck of annular protruding upward is had in the bottom of consent, the endoporus of sealing neck portion is the upper part of vent, between the periphery and the consent of sealing neck portion of sealing neck, have the groove of annular, the groove of annular is for holding the capped pipe part of sealed cap; The upper-end surface of described sealing neck is smooth annular sealing surface, and the periphery of sealing neck is smooth periphery; It is consent on vent; Described vent is the via hole allowing air pass through, and below annular sealing surface, communicates with pumping chamber and consent; Described consent is the hole of installation and fixing fixed plug, on sealing neck and outside sealing neck, communicates with squish chamber and vent.

Described fixed plug be restriction be arranged on the distance of answering the sealed cap on the sealing neck in magnetic piston to move up, centre has the plug of vent, described plug to be that centre has the cylinder of through hole or annular ring or jump ring circle; Fixed plug is centre when having a cylinder of through hole, and the fixing employing interference fit in consent is fixed or screw-thread fit is fixed or adopt jump ring to be stuck in the two ends of the jump-ring slot internal fixtion cylinder in consent; When fixed plug is annular ring, the fixing employing interference fit in consent is fixed or is adopted jump ring to be stuck in the two ends of the jump-ring slot internal fixtion annular ring in consent; When fixed plug is jump ring circle, directly jump ring is stuck in consent.

Described annular sealing surface is the sealing surface of the flat smooth of ring, and annular sealing surface coordinates with the inner sealing surface in sealed cap in the upper end of the sealing neck of answering the upper end of sealing neck of magnetic piston to coordinate with the inner sealing surface of sealed cap and in the middle part of the lower end of the inner chamber of negative pressure shell respectively.

Described sealed cap is the circular pipe type cap body of top seal, and it is inner sealing surface that the inner top of sealed cap divides, and the cylindrical parts near inner sealing surface has air passing hole.

Described sealing cone is cone or cone cylinder, and the annular surface of cone or cone cylinder is the male cone (strobilus masculinus) having tapering; The male cone (strobilus masculinus) of sealing cone and inner conical surface press down by sealing the gravity of boring self and seal inner conical surface when sealing.

Described ball sealer is spherosome or oval ball, and the surface of spherosome or oval ball is sealing surface, and sealing surface is smooth sphere; Gravity by ball sealer when the sphere of ball sealer and inner conical surface seal presses down and seals inner conical surface.

Described field controller controls the controller that generates an electromagnetic field of electromagnetic coil, control time and the time length generated an electromagnetic field that electromagnetic field produces and after generating an electromagnetic field at every turn to the interval time generated an electromagnetic field again for the second time.

In order to prevent robber from stealing automobile easily, making robber not have vacuum servo when driving a car and stopping stealing garage is adopt installing remote device between teacher position key operation and field controller to connect and cut off the power-on circuit generated an electromagnetic field; Described electronic remote controller is the circuit switch of connecting and cutting off field controller, and comprise the switch sections and electronic telecontrol part that switch on or off circuit, electronic telecontrol part comprises remote controller switch and electronic signal receiver; Remote controller switch is used for staff and carries with, and is convenient to staff and handles and vacuumize the control circuit that the normal work of high-efficiency energy-saving electric magnetic device and cut-out vacuumize high-efficiency energy-saving electric magnetic device; Described electronic remote controller can have in the present invention, also can not have.

Described exhaust tube connects the bleeder hole of negative pressure shell and the hollow tubular of vacuum tank.

Described bleeder hole be air enter the inner chamber of negative pressure shell through air passing hole, sealing neck center portion; There is annular sealing surface the upper end of the bleeder hole in sealing neck, and when the annular sealing surface of the sealing neck of protecting crust lower end does not install sealed cap, pumping chamber communicates with bleeder hole.

The air extracted in vacuum tank is laid in and is waited to press in pumping chamber, extrudes air and produce air pressure and discharge outside negative pressure shell in squish chamber; In squish chamber during exhaust, pumping chamber communicates with squish chamber; When discharging air in squish chamber, pumping chamber is by ball sealer or sealing cone and answer the internal taper hole in magnetic piston to seal and disconnect the passage of bleeding entering squish chamber.

Described vacuumizes high-efficiency energy-saving electric magnetic device in the process of exhaust, control bleed-off passage and go out air passageways one-way check valve in there is no return spring; When pumping chamber exhaust, the suction of answering magnetic piston stroking upward to produce is opened the sealing of the sealing neck of sealed cap and negative pressure shell lower end and opens the passage of bleeding, and is arranged on and answers the automatic decline return and close the passage of bleeding entered in squish chamber and seal under the effect of self gravitation of the sealing surface on the sealing neck in magnetic piston; When squish chamber exhaust, be arranged on that ball sealer on the internal taper hole of gas outlet valve or sealing cone utilize the gravity of self to make ball sealer or the sealing automatic decline return of cone and the passage of closing the discharge on gas outlet valve seals, answer magnetic descent of piston and make to produce pumping chamber in pressure promotion and be arranged on and answer the up passage of bleeding entered in squish chamber of then opening of the sealed cap on the sealing neck in magnetic piston; When discharging air in squish chamber, under the effect of outlet pressure, promote ball sealer on the internal taper hole of gas outlet valve or sealing cone up and open the passage of giving vent to anger of gas outlet valve, be arranged on and answer the sealed cap on the sealing neck in magnetic piston to utilize the gravity of self to make sealed cap decline return and close and answer the passage of bleeding on magnetic piston to seal automatically.

In order to ensure that vacuumizing high-efficiency energy-saving electric magnetic device can normally work, adopt connection and the cut-out of the connecting circuit of the teacher position key operation controlling magnetic field controller connected with insulated electric conductor; Or, adopt connection and the cut-out of the connecting circuit of teacher position key operation and the electronic remote controller co-controlling field controller connected with insulated electric conductor.

Keeping the shape of protecting crust to ensure protecting crust that electromagnetic coil can be protected not to be damaged, in the inner chamber of protecting crust, manufacturing the skeleton having support.

Air in the squish chamber promoting in negative pressure shell to enable to answer magnetic piston enters gas outlet valve, adopts iron core spring as the power promoting to answer magnetic piston stroking upward.

During use, the power-on circuit of insulated electric conductor and field controller directly connected by teacher of the opening position key operation, or, the starting button of remote controller switch pressed by teacher of the opening position key after connecting the power-on circuit of electronic remote controller, the circuit of electronic remote controller and field controller connected by electronic signal receiver after receiving activating signal; The power-on circuit that field controller connects electromagnetic coil generates an electromagnetic field, the attraction force that electromagnetic field produces pulls answers the pressure of magnetic piston overpowers iron core spring to move down, when answering magnetic piston to start descending, descending return under being arranged on the effect of the negative pressure of vacuum of the sealed cap on the sealing neck of lower end in negative pressure shell under the effect of self gravitation and in vacuum tank and close the bleed-off passage entering pumping chamber, ball sealer in gas outlet valve or sealing are bored descending return under the effect of the gravity of self and seal the inner conical surface of gas outlet valve, have cut off the outlet passageway in squish chamber; Answer magnetic piston when descending, the air of answering magnetic piston to promote to enter in pumping chamber and make air produce internal pressure, there is the air of pressure upwards wash the sealing of the inner sealing surface of annular sealing surface and sealed cap open from the upper end that the vent of answering in magnetic piston enters into the sealing neck of answering in magnetic piston and continue up after sealed cap is shifted, enter after the vent in fixed plug again in squish chamber after the air passing hole on sealed cap.

Answer magnetic descent of piston move to the compression stage of compression iron core spring spacing time, the power-on circuit of field controller cutoff solenoid, electromagnetic field disappears, and answers magnetic piston up under the promotion of iron core spring; When answering magnetic piston to start up, be arranged on and answer the sealed cap on the sealing neck in magnetic piston descending and close the passage of bleeding that air enters squish chamber under the effect of the gravity of self; When answering magnetic piston stroking upward, answer the up of magnetic piston and make the air in squish chamber create pressure, have the air of pressure from the endoporus of the sealed end of gas outlet valve lower end enter into internal taper hole in gas outlet valve promote ball sealer or sealing cone up and open the sealing channel of gas outlet valve, the air in squish chamber is entered in air after gas outlet valve; Answer magnetic piston when up, magnetic piston is answered also to make to create pull of vacuum in pumping chamber, it is up and the annular sealing surface of the sealing neck upper end of negative pressure shell lower end is separated with the inner sealing surface of sealed cap that pull of vacuum inhales motive sealing cap, and the air in vacuum tank enters from the air passing hole of exhaust tube after suction port again through sealed cap in the pumping chamber of answering below magnetic piston in negative pressure shell.

Answer magnetic piston up when putting in place under the promotion of iron core spring, descending return under being arranged on the effect of the negative pressure of vacuum of the sealed cap on the sealing neck of lower end in negative pressure shell under the effect of self gravitation and in vacuum tank and close the bleed-off passage entering pumping chamber, ball sealer in gas outlet valve or sealing are bored descending return under the effect of the gravity of self and seal the inner conical surface of gas outlet valve, have cut off the outlet passageway in squish chamber and have made air not return pumping chamber; Now, the power-on circuit that field controller connects again electromagnetic coil again generates an electromagnetic field and makes to answer magnetic descent of piston; The connection of circulation like this and cut off circuit, makes electromagnetic coil generate an electromagnetic field to pull to answer magnetic piston stroking upward and allow iron core spring promote to answer magnetic descent of piston, constantly the air in vacuum tank is extracted out and enter in air.

Vacuumize a manufacture method for high-efficiency energy-saving electric magnetic device, it is characterized in that:

During fabrication, the type in protecting crust employing metal, plastics, nylon, glass fibre reinforced plastics or the material manufacture of several types; Hollow valve body and negative pressure shell adopt the material manufacture of a type in metal, plastics, nylon and glass fibre reinforced plastics or several types; The material manufacture of ball sealer or the type sealed in cone employing metal, plastics, nylon and rubber or several types; A type in sealed cap employing metal, plastics, nylon and glass fibre reinforced plastics or the material manufacture of several types; Magnetic piston is answered to adopt the material manufacture of the hard to bear magnetic field suction of energy; A type in fixed plug employing metal, plastics, nylon, glass fibre reinforced plastics, rubber or the material manufacture of several types; Iron core spring adopts the material manufacture of a type in metal and rubber or two types, and when adopting rubber material to manufacture, iron core spring creates hollow tubular type spring, utilizes the elasticity of rubber and contractibility to realize the function of spring.

Protecting crust creates the hollow cavity of annular, and hollow cavity manufactures string holes, and string holes creates the hole allowing insulated electric conductor pass; The parts installed in field controller, electromagnetic coil and negative pressure shell and negative pressure shell are installed in hollow cavity, or, the parts installed in electronic remote controller, field controller, electromagnetic coil and negative pressure shell and negative pressure shell are installed in hollow cavity; The inner of the annular housing of hollow cavity is fixed on negative pressure shell.

Conveniently assemble, during fabrication, after protecting crust is divided into two-part manufacture from annular position, recombinant together for protecting crust.

The inner chamber of negative pressure shell creates columniform cavity, and the periphery of columniform cavity creates smooth curved surface; Upper end on the center line of inner chamber manufacture have through negative pressure shell center hole, lower end manufactures has bleeder hole to pass negative pressure shell; The middle part of the lower end in negative pressure shell manufactures sealing neck protruding upward, the upper end portion of sealing neck creates annular sealing surface, the inside of sealing neck creates bleeder hole, when the inner sealing surface of sealed cap does not seal with annular sealing surface, bleeder hole is communicated with pumping chamber by air passing hole, and the inner sealing surface of sealed cap coordinates with the annular sealing surface of sealing neck.

Gas outlet valve creates hollow valve body and ball sealer or sealing and bores two-part, hollow valve body creates hollow tubular, internal taper hole is manufactured on middle part or the middle and lower part of the inner chamber of hollow tubular, and the internal diameter that the internal diameter that the upper part of the internal taper hole in hollow tubular manufactures is large, lower part manufactures is little; The lower end of hollow valve body manufactures return-air sealed end, the lower end surface of return-air sealed end is manufactured on the lower end of hollow valve body, upper-end surface creates internal taper hole, the large end of internal taper hole communicates with the upper end of gas outlet valve, small end communicates with the lower end of gas outlet valve, and the inner conical surface of internal taper hole is provided with ball sealer or sealing cone.Described internal taper hole creates the circular hole of tapering, and the face of circular hole creates inner conical surface; The small end of internal taper hole under, hold upper greatly, can inner conical surface be sealed under the effect of the gravity of ball sealer or sealing cone self, inner conical surface and ball sealer can be opened by suction when having suction on ball sealer or sealing cone or seal the passage of boring and sealing; The air pressure that ball sealer or sealing are bored above is larger, and the gluing, sealing effect of ball sealer or sealing cone and inner conical surface is better; Inner conical surface and ball sealer can be opened when being with the air of pressure from the endoporus of hollow valve body lower end or seal the sealing of boring and form passage.

For the ease of negative pressure shell processing and be convenient to accessory to load in negative pressure shell, described negative pressure shell create segmentation processing manufacture after assemblying body; The upper end of the circular cylindrical cavity part in negative pressure shell is divided into two sections of manufactures, the main body that upper part creates pump cover, lower part creates negative pressure shell of segmentation place, center hole is manufactured on pump cover, bleeder hole is manufactured on the middle part of the main body lower end of negative pressure shell, and being combined into after the main body after pump cover and negative pressure shell manufactures is a composite entity; Or, the lower end of the circular cylindrical cavity part in negative pressure shell is divided into two sections of manufactures, the main body that lower part creates pump cover, upper part creates negative pressure shell of segmentation place, bleeder hole is manufactured on the middle part of pump cover, center hole is manufactured on the middle part of the upper end of the main body of negative pressure shell, and being combined into after the main body of pump cover and negative pressure shell manufactures is a composite entity.

Answer magnetic piston to create columniform iron core, the periphery of columniform iron core creates smooth periphery, and smooth periphery manufactures the annular groove having depression, and annular groove is embedded with seal ring; Described periphery coordinates with the inner chamber of negative pressure shell can the inner chamber of sealed negative-pressure shell, and can slide in the inner chamber of negative pressure shell.The cylindrical central portion position of described columniform iron core manufactures penetration hole, and penetration hole communicates with squish chamber and pumping chamber; Described penetration hole creates that upper part runs through the upper-end surface of iron core, lower part runs through iron core lower end surface, the lower part of penetration hole creates vent, the upper part of penetration hole creates consent, the sealing neck having annular protruding upward is manufactured in the bottom of consent, the endoporus of sealing neck portion creates the upper part of vent, between the outer ring surface and the consent of sealing neck portion of sealing neck, manufacture the groove of annular, the groove of annular is for holding the capped pipe part of sealed cap; The upper-end surface of described sealing neck creates smooth annular sealing surface, and the periphery of sealing neck creates smooth periphery.Manufacture on vent and have consent; Described vent creates the via hole allowing air pass through, and is manufactured on below annular sealing surface, communicates with pumping chamber and consent; Described consent creates installation and the hole of fixing fixed plug, is manufactured on above and outside sealing neck of sealing neck, communicates with squish chamber and vent.

Fixed plug creates the plug that there is vent centre, and described plug creates centre the cylinder of through hole or annular ring or jump ring circle, can limit the distance being arranged on and answering the sealed cap on the sealing neck in magnetic piston to move up; Fixed plug creates centre when having a cylinder of through hole, and the fixing employing interference fit in consent is fixed or screw-thread fit is fixed or adopt jump ring to be stuck in the two ends of the jump-ring slot internal fixtion cylinder in consent; When fixed plug creates annular ring, the fixing employing interference fit in consent is fixed or is adopted jump ring to be stuck in the two ends of the jump-ring slot internal fixtion annular ring in consent; When fixed plug creates jump ring circle, directly jump ring is stuck in consent.

Described annular sealing surface creates the sealing surface of the flat smooth of ring, and the upper end of sealing neck in the middle part of the lower end being manufactured on the inner chamber of answering the upper end of sealing neck of magnetic piston to coordinate with the inner sealing surface of sealed cap and to be manufactured on negative pressure shell respectively coordinates with the inner sealing surface in sealed cap.

Described sealed cap creates the circular pipe type cap body of top seal, and the inner top of sealed cap divides and creates inner sealing surface, and the cylindrical parts manufacture near inner sealing surface has air passing hole.

Sealing cone creates cone or cone cylinder, and the annular surface of cone or cone cylinder creates the male cone (strobilus masculinus) of tapering; The male cone (strobilus masculinus) of sealing cone and inner conical surface press down by sealing the gravity of boring self and seal inner conical surface when sealing.

Ball sealer creates spherosome or oval ball, and the surface of spherosome or oval ball creates sealing surface, and sealing surface creates smooth sphere; Self gravitation by ball sealer when the sphere of ball sealer and inner conical surface seal presses down and seals inner conical surface.

Field controller creates and controls the controller that generates an electromagnetic field of electromagnetic coil, control time that electromagnetic field produces and the time that generates an electromagnetic field length and after generating an electromagnetic field at every turn to the interval time generated an electromagnetic field again for the second time.

In order to prevent robber from stealing automobile easily, making robber not have vacuum servo when driving a car and stopping stealing garage is adopt installing remote device between teacher position key operation and field controller to connect and cut off the power-on circuit generated an electromagnetic field; Described electronic remote controller creates the circuit switch connected and cut off field controller, and comprise the switch sections and electronic telecontrol part that switch on or off circuit, electronic telecontrol part comprises remote controller switch and electronic signal receiver; Described electronic remote controller can have in the present invention, also can not have.

Exhaust tube creates and connects the bleeder hole of negative pressure shell and the hollow tubular of vacuum tank.

Bleeder hole create air enter the inner chamber of negative pressure shell through via hole, be manufactured on sealing neck center portion; The upper end of the bleeder hole in sealing neck manufactures annular sealing surface, and when the annular sealing surface of the sealing neck of protecting crust lower end does not install sealed cap, pumping chamber communicates with bleeder hole.

Sealed cap, iron core spring are installed in negative pressure shell, answer magnetic piston, fixed plug, magnetic piston is answered to be arranged on the upper part of the inner chamber of negative pressure shell, iron core spring fitting is at the lower part of the inner chamber of negative pressure shell, the lower end of iron core spring is pressed in lower end in negative pressure shell, top, upper end is pressed in the underpart of answering magnetic piston, answers magnetic piston can slide up and down in the inner chamber of negative pressure shell; The sealing neck of answering the lower part of the consent in magnetic piston is provided with sealed cap, the capped pipe part of sealed cap can slide up and down on the periphery of sealing neck, in consent, be provided with fixed plug to limit sliding distance during sealed cap upward sliding, the fixing employing interference fit of fixed plug in consent is fixed or screw-thread fit is fixed or adopt jump ring to be stuck in the two ends of the jump-ring slot internal fixtion fixed plug in consent; The passage of bleeding of answering on magnetic piston can be closed when the inner sealing surface that the inner top of sealed cap divides coordinates with annular sealing surface and seals, when the inner sealing surface that the inner top of sealed cap divides separates with annular sealing surface, the passage of bleeding of answering on magnetic piston can be opened; On the periphery of the sealing neck of the lower end in negative pressure shell, cover has sealed cap, and the periphery of the sealing neck of the lower end of sealed cap in negative pressure shell can slide up and down; Inner sealing surface in sealed cap coordinates the passage of bleeding that can seal or open and enter in negative pressure shell with the annular sealing surface of sealing neck end; When answering magnetic piston stroking upward, the inner chamber part of answering the negative pressure shell of magnetic piston lower part is pumping chamber; When answering magnetic descent of piston, the inner chamber part of the negative pressure shell of magnetic piston upper part is answered to be squish chamber.

Be fixed with exhaust tube at the bleeder hole place of the lower end of negative pressure shell, the other end of exhaust tube is connected with vacuum tank, and the endoporus of exhaust tube communicates with bleeder hole and vacuum tank; Be provided with gas outlet valve in the upper end of negative pressure shell, the lower part of gas outlet valve is fixed in the center hole of the overlying one end of negative pressure shell, and the upper-end surface of negative pressure shell is exposed in the upper end of gas outlet valve.

The present invention vacuumize high-efficiency energy-saving electric magnetic device compact structure, vibrate little, utilization rate of electrical is high, powerful, the electric vehicle and the internal-combustion engines vehicle that are applicable to the hydraulic braking of vacuum servo formula are installed and used, and also can produce vacuum normally and realize vacuum servo after internal-combustion engine shuts down; The market prospects of industrialization are good, commercial value is high, manufacture and use all very convenient.

Accompanying drawing explanation

Fig. 1 and Fig. 2 is the structural representation vacuumizing high-efficiency energy-saving electric magnetic device.

Fig. 3 is the structural representation of answering magnetic piston.

Fig. 4 is the schematic appearance of the plan view of answering magnetic piston.

Shown in figure: protecting crust 1, foot rest 2, exhaust tube 3, negative pressure shell 4, hollow valve body 5, iron core spring 6, answer magnetic piston 7, ball sealer 8 or sealing cone 8, fixed plug 10, sealed cap 11, air passing hole 12, electromagnetic coil 13, vent 16, annular sealing surface 17, consent 18.

Embodiment

The present invention vacuumizes high-efficiency energy-saving electric magnetic device and mainly comprises protecting crust 1, electromagnetic coil 13, negative pressure shell 4, bleeder hole, ball sealer 8 or sealing cone 8, sealed cap 11, iron core spring 6, answers magnetic piston 7, fixed plug 10, internal taper hole, vent 16, gas outlet valve, exhaust tube 3, field controller, electronic remote controller; Or comprise protecting crust 1, electromagnetic coil 13, negative pressure shell 4, bleeder hole, ball sealer 8 or sealing cone 8, sealed cap 11, iron core spring 6, answer magnetic piston 7, fixed plug 10, internal taper hole, vent 16, gas outlet valve, exhaust tube 3, field controller.

In protecting crust 1, be provided with electromagnetic coil 13, electromagnetic coil 13 is fixed on the lower part outside negative pressure shell 4, and protecting crust 1 is fixed on the outside protection electromagnetic coil 13 of the lower part of negative pressure shell 4; Below the outside of protecting crust 1, one side is fixed with foot rest 2, and the lower end of foot rest 2 protects exhaust tube 3 not oppressed lower than negative pressure shell 4 lower end, and the lower end of foot rest 2 is fixed on the vehicle frame of automobile.

The circuit connecting electromagnetic coil 13 is connected with field controller, the circuit of field controller is connected with electronic remote controller, electronic remote controller is connected with insulated electric conductor, and the electronic signal receiver of field controller, electronic remote controller and electronic remote controller is arranged in protecting crust 1; Or the circuit connecting electromagnetic coil 13 is connected with field controller, and the circuit of field controller is connected with insulated electric conductor, and field controller is arranged in protecting crust 1.

Sealed cap 11, iron core spring 6 are installed in negative pressure shell 4, answer magnetic piston 7, fixed plug 10, magnetic piston 7 is answered to be arranged on the upper part of the inner chamber of negative pressure shell 4, iron core spring 6 is arranged on the lower part of the inner chamber of negative pressure shell 4, the lower end of iron core spring 6 is pressed in lower end in negative pressure shell 4, top, upper end is pressed in the underpart of answering magnetic piston 7, answers magnetic piston 7 can slide up and down in the inner chamber of negative pressure shell 4; The sealing neck of the lower part of the consent 18 of answering in magnetic piston 7 is provided with sealed cap 11, the capped pipe part of sealed cap 11 can slide up and down on the periphery of sealing neck, in consent 18, be provided with fixed plug 10 to limit sliding distance during sealed cap 11 upward sliding, the fixing employing interference fit of fixed plug 10 in consent 18 is fixed or screw-thread fit is fixed or adopt jump ring to be stuck in the two ends of the jump-ring slot internal fixtion fixed plug 10 in consent 18; The passage of bleeding of answering on magnetic piston 7 can be closed when the inner sealing surface that the inner top of sealed cap 11 divides coordinates with annular sealing surface 17 and seals, when the inner sealing surface that the inner top of sealed cap 11 divides separates with annular sealing surface 17, the passage of bleeding of answering on magnetic piston 7 can be opened; On the periphery of the sealing neck of the lower end in negative pressure shell 4, cover has sealed cap 11, and the periphery of the sealing neck of the lower end of sealed cap 11 in negative pressure shell 4 can slide up and down; Inner sealing surface in sealed cap 11 coordinates the passage of bleeding that can seal or open and enter in negative pressure shell 4 with the annular sealing surface 17 of sealing neck end; When answering magnetic piston 7 up, the inner chamber part of answering the negative pressure shell 4 of magnetic piston 7 lower part is pumping chamber; When answering magnetic piston 7 descending, the inner chamber part of the negative pressure shell 4 of magnetic piston 7 upper part is answered to be squish chamber.Be fixed with exhaust tube 3 at the bleeder hole place of the lower end of negative pressure shell 4, the other end of exhaust tube 3 is connected with vacuum tank, and the endoporus of exhaust tube 3 communicates with bleeder hole and vacuum tank; Be provided with gas outlet valve in the upper end of negative pressure shell 4, the lower part of gas outlet valve is fixed in the center hole of the overlying one end of negative pressure shell 4, and the upper-end surface of negative pressure shell 4 is exposed in the upper end of gas outlet valve.

During fabrication, protecting crust 1 adopts the material manufacture of a type in metal, plastics, nylon, glass fibre reinforced plastics, rubber or several types, when protecting crust 1 when adopting rubber material to manufacture or after manufacture shaping is soft-shell, it is made to float on gas face will first in use the inflation of the inner chamber of protecting crust 1; Hollow valve body 5 and negative pressure shell 4 adopt the material manufacture of a type in metal, plastics, nylon and glass fibre reinforced plastics or several types; Ball sealer 8 or sealing cone 8 adopt the material manufacture of a type in metal, plastics, nylon and rubber or several types; Sealed cap 11 adopts the material manufacture of a type in metal, plastics, nylon and glass fibre reinforced plastics or several types; Magnetic piston 7 is answered to adopt the material manufacture of the hard to bear magnetic field suction of energy; Fixed plug 10 adopts the material manufacture of a type in metal, plastics, nylon, glass fibre reinforced plastics, rubber or several types; Iron core spring 6 adopts the material manufacture of a type in metal and rubber or two types, and when adopting rubber material to manufacture, iron core spring 6 creates hollow tubular type spring, utilizes the elasticity of rubber and contractibility to realize the function of spring.

Protecting crust 1 creates the hollow cavity of annular, and hollow cavity manufactures string holes, and string holes creates the hole allowing insulated electric conductor pass; The parts installed in field controller, electromagnetic coil 13 and negative pressure shell 4 and negative pressure shell 4 are installed in hollow cavity, or, the parts installed in electronic remote controller, field controller, electromagnetic coil 13 and negative pressure shell 4 and negative pressure shell 4 are installed in hollow cavity; The inner of the annular housing of hollow cavity is fixed on negative pressure shell 4.

Conveniently assemble, during fabrication, after protecting crust 1 is divided into two-part manufacture from annular position, recombinant together for protecting crust 1.

The inner chamber of negative pressure shell 4 creates columniform cavity, and the periphery of columniform cavity creates smooth curved surface; Upper end on the center line of inner chamber manufacture have through negative pressure shell 4 center hole, lower end manufactures has bleeder hole to pass negative pressure shell 4; The middle part of the lower end in negative pressure shell 4 manufactures sealing neck protruding upward, the upper end portion of sealing neck creates annular sealing surface 17, the inside of sealing neck creates bleeder hole, when the inner sealing surface of sealed cap 11 does not seal with annular sealing surface 17, bleeder hole is communicated with pumping chamber by air passing hole 12, and the inner sealing surface of sealed cap 11 coordinates with the annular sealing surface 17 of sealing neck.

Gas outlet valve creates hollow valve body 5 and ball sealer 8 or seals cone 8 two-part, hollow valve body 5 creates hollow tubular, internal taper hole is manufactured on middle part or the middle and lower part of the inner chamber of hollow tubular, and the internal diameter that the internal diameter that the upper part of the internal taper hole in hollow tubular manufactures is large, lower part manufactures is little; The lower end of hollow valve body 5 manufactures return-air sealed end, the lower end surface of return-air sealed end is manufactured on the lower end of hollow valve body 5, upper-end surface creates internal taper hole, the large end of internal taper hole communicates with the upper end of gas outlet valve, small end communicates with the lower end of gas outlet valve, and the inner conical surface of internal taper hole is provided with ball sealer 8 or sealing cone 8.Described internal taper hole creates the circular hole of tapering, and the face of circular hole creates inner conical surface; The small end of internal taper hole under, hold upper greatly, can inner conical surface be sealed under the effect of the gravity of ball sealer 8 or sealing cone 8 self, inner conical surface and ball sealer 8 can be opened by suction when having suction on ball sealer 8 or sealing cone 8 or seal the passage that cone 8 seals; Air pressure above ball sealer 8 or sealing cone 8 is larger, and the gluing, sealing effect of ball sealer 8 or sealing cone 8 and inner conical surface is better; Inner conical surface and ball sealer 8 can be opened when being with the air of pressure from the endoporus of hollow valve body 5 lower end or sealing the sealing of cone 8 and form passage.

For the ease of negative pressure shell 4 processing and be convenient to accessory to load in negative pressure shell 4, described negative pressure shell 4 create segmentation processing manufacture after assemblying body; The upper end of the circular cylindrical cavity part in negative pressure shell 4 is divided into two sections of manufactures, the main body that the upper part of segmentation place creates pump cover, lower part creates negative pressure shell 4, center hole is manufactured on pump cover, bleeder hole is manufactured on the middle part of the main body lower end of negative pressure shell 4, and being combined into after the main body after pump cover and negative pressure shell 4 manufactures is a composite entity; Or, the lower end of the circular cylindrical cavity part in negative pressure shell 4 is divided into two sections of manufactures, the main body that the lower part of segmentation place creates pump cover, upper part creates negative pressure shell 4, bleeder hole is manufactured on the middle part of pump cover, center hole is manufactured on the middle part of the upper end of the main body of negative pressure shell 4, and being combined into after the main body of pump cover and negative pressure shell 4 manufactures is a composite entity.

Answer magnetic piston 7 to create columniform iron core, the periphery of columniform iron core creates smooth periphery, and smooth periphery manufactures the annular groove having depression, and annular groove is embedded with seal ring; Described periphery coordinates with the inner chamber of negative pressure shell 4 can the inner chamber of sealed negative-pressure shell 4, and can slide in the inner chamber of negative pressure shell 4.The cylindrical central portion position of described columniform iron core manufactures penetration hole, and penetration hole communicates with squish chamber and pumping chamber; Described penetration hole creates that upper part runs through the upper-end surface of iron core, lower part runs through iron core lower end surface, the lower part of penetration hole creates vent 16, the upper part of penetration hole creates consent 18, the sealing neck having annular protruding upward is manufactured in the bottom of consent 18, the endoporus of sealing neck portion creates the upper part of vent 16, between the outer ring surface and the consent 18 of sealing neck portion of sealing neck, manufacture the groove of annular, the groove of annular is for holding the capped pipe part of sealed cap 11; The upper-end surface of described sealing neck creates smooth annular sealing surface 17, and the periphery of sealing neck creates smooth periphery.Manufacture on vent 16 and have consent 18; Described vent 16 creates the via hole allowing air pass through, and is manufactured on below annular sealing surface 17, communicates with pumping chamber and consent 18; Described consent 18 creates installation and the hole of fixing fixed plug 10, is manufactured on above and outside sealing neck of sealing neck, communicates with squish chamber and vent 16.

Fixed plug 10 creates the plug that there is vent 16 centre, and described plug creates centre the cylinder of through hole or annular ring or jump ring circle, can limit the distance being arranged on and answering the sealed cap 11 on the sealing neck in magnetic piston 7 to move up; Fixed plug 10 creates centre when having a cylinder of through hole, and the fixing employing interference fit in consent 18 is fixed or screw-thread fit is fixed or adopt jump ring to be stuck in the two ends of the jump-ring slot internal fixtion cylinder in consent 18; When fixed plug 10 creates annular ring, the fixing employing interference fit in consent 18 is fixed or is adopted jump ring to be stuck in the two ends of the jump-ring slot internal fixtion annular ring in consent 18; When fixed plug 10 creates jump ring circle, directly jump ring is stuck in consent 18.

Described annular sealing surface 17 creates the sealing surface of the flat smooth of ring, and the upper end of the sealing neck in the middle part of the lower end being manufactured on the inner chamber of answering the upper end of the sealing neck of magnetic piston 7 to coordinate with the inner sealing surface of sealed cap 11 and to be manufactured on negative pressure shell 4 respectively coordinates with the inner sealing surface in sealed cap 11.

Described sealed cap 11 creates the circular pipe type cap body of top seal, and the inner top of sealed cap 11 divides and creates inner sealing surface, and the cylindrical parts manufacture near inner sealing surface has air passing hole 12.

Sealing cone 8 creates cone or cone cylinder, and the annular surface of cone or cone cylinder creates the male cone (strobilus masculinus) of tapering; The male cone (strobilus masculinus) of sealing cone 8 and inner conical surface press down by the gravity sealing cone 8 self and seal inner conical surface when sealing.

Ball sealer 8 creates spherosome or oval ball, and the surface of spherosome or oval ball creates sealing surface, and sealing surface creates smooth sphere; Self gravitation by ball sealer 8 when the sphere of ball sealer 8 and inner conical surface seal presses down and seals inner conical surface.

Field controller creates and controls the controller that generates an electromagnetic field of electromagnetic coil 13, control time that electromagnetic field produces and the time that generates an electromagnetic field length and after generating an electromagnetic field at every turn to the interval time generated an electromagnetic field again for the second time.

Exhaust tube 3 creates and connects the bleeder hole of negative pressure shell 4 and the hollow tubular of vacuum tank.

Bleeder hole create air enter the inner chamber of negative pressure shell 4 through via hole, be manufactured on sealing neck center portion; The upper end of the bleeder hole in sealing neck manufactures annular sealing surface 17, and when the annular sealing surface 17 of the sealing neck of protecting crust 1 lower end does not install sealed cap 11, pumping chamber communicates with bleeder hole.

Keeping the shape of protecting crust 1 to ensure protecting crust 1 that electromagnetic coil 13 can be protected not to be damaged, in the inner chamber of protecting crust 1, manufacturing the skeleton having support.

Air in the squish chamber that can promote in negative pressure shell 4 to make to answer magnetic piston 7 enters gas outlet valve, adopts iron core spring 6 as the power promoting to answer magnetic piston 7 up.

The air extracted in vacuum tank is laid in and is waited to press in pumping chamber, extrudes air and produce air pressure and discharge outside negative pressure shell in squish chamber; In squish chamber during exhaust, pumping chamber communicates with squish chamber; When discharging air in squish chamber, pumping chamber is by ball sealer 8 or sealing cone 8 and answer the internal taper hole in magnetic piston 7 to seal and disconnect the passage of bleeding entering squish chamber.

Described vacuumizes high-efficiency energy-saving electric magnetic device in the process of exhaust, control bleed-off passage and go out air passageways one-way check valve in there is no return spring; When pumping chamber exhaust, answer the suction of the up generation of magnetic piston 7 open sealed cap 11 and the sealing of the sealing neck of negative pressure shell 4 lower end and open the passage of bleeding, be arranged on and answer the automatic decline return and close the passage of bleeding entered in squish chamber and seal under the effect of self gravitation of the sealing surface on the sealing neck in magnetic piston 7; When squish chamber exhaust, being arranged on ball sealer 8 on the internal taper hole of gas outlet valve or sealing cone 8 utilizes the gravity of self to make ball sealer 8 or sealing cone 8 decline return and the passage of closing the discharge on gas outlet valve seals automatically, answers magnetic piston 7 descending and makes to produce pumping chamber in pressure promotion and be arranged on and answer the up passage of bleeding entered in squish chamber of then opening of the sealed cap 11 on the sealing neck in magnetic piston 7; When discharging air in squish chamber, under the effect of outlet pressure, promote ball sealer 8 on the internal taper hole of gas outlet valve or sealing cone 8 up and open the passage of giving vent to anger of gas outlet valve, be arranged on and answer the sealed cap 11 on the sealing neck in magnetic piston 7 to utilize the gravity of self to make sealed cap 11 decline return and close and answer the passage of bleeding on magnetic piston 7 to seal automatically.

During use, the power-on circuit of insulated electric conductor and field controller directly connected by teacher of the opening position key operation, or, the starting button of remote controller switch pressed by teacher of the opening position key after connecting the power-on circuit of electronic remote controller, the circuit of electronic remote controller and field controller connected by electronic signal receiver after receiving activating signal, the power-on circuit that field controller connects electromagnetic coil 13 generates an electromagnetic field, the attraction force that electromagnetic field produces pulls the pressure of answering magnetic piston 7 to overcome iron core spring 6 to move down, when answering magnetic piston 7 to start descending, be arranged on descending return under the effect of the negative pressure of vacuum of sealed cap 11 under the effect of self gravitation and in vacuum tank on the sealing neck of lower end in negative pressure shell 4 and close the bleed-off passage entering pumping chamber, ball sealer 8 in gas outlet valve or sealing cone 8 descending return and seal the inner conical surface of gas outlet valve under the effect of the gravity of self, cut off the outlet passageway in squish chamber, answer magnetic piston 7 when descending, the air of answering magnetic piston 7 to promote to enter in pumping chamber and make air produce internal pressure, there is the air of pressure upwards wash annular sealing surface 17 and the sealing of the inner sealing surface of sealed cap 11 open from the upper end that the vent 16 of answering in magnetic piston 7 enters into the sealing neck of answering in magnetic piston 7 and continue up after sealed cap 11 is shifted, enter in squish chamber after the vent 16 in fixed plug 10 again after the air passing hole 12 on sealed cap 11.

When answering the descending compression stage moving to compression iron core spring 6 of magnetic piston 7 spacing, the power-on circuit of field controller cutoff solenoid 13, electromagnetic field disappears, and answers magnetic piston 7 up under the promotion of iron core spring 6; When answering magnetic piston 7 to start up, be arranged on and answer the sealed cap 11 on the sealing neck in magnetic piston 7 descending and close the passage of bleeding that air enters squish chamber under the effect of the gravity of self; When answering magnetic piston 7 up, answer the up of magnetic piston 7 and make the air in squish chamber create pressure, have the air of pressure from the endoporus of the sealed end of gas outlet valve lower end enter into internal taper hole in gas outlet valve promote ball sealer 8 or sealing cone 8 up and open the sealing channel of gas outlet valve, the air in squish chamber is entered in air after gas outlet valve; Answer magnetic piston 7 when up, magnetic piston 7 is answered also to make to create pull of vacuum in pumping chamber, it is up and the annular sealing surface 17 of the sealing neck upper end of negative pressure shell 4 lower end is separated with the inner sealing surface of sealed cap 11 that pull of vacuum inhales motive sealing cap 11, and the air in vacuum tank enters from the air passing hole 12 of exhaust tube 3 after suction port again through sealed cap 11 in the pumping chamber of answering below magnetic piston 7 in negative pressure shell 4.

Answer magnetic piston 7 up when putting in place under the promotion of iron core spring 6, be arranged on descending return under the effect of the negative pressure of vacuum of sealed cap 11 under the effect of self gravitation and in vacuum tank on the sealing neck of lower end in negative pressure shell 4 and close the bleed-off passage entering pumping chamber, ball sealer 8 in gas outlet valve or sealing cone 8 descending return and seal the inner conical surface of gas outlet valve under the effect of the gravity of self, has cut off the outlet passageway in squish chamber and has made air not return pumping chamber; Now, the power-on circuit that field controller connects again electromagnetic coil 13 again generates an electromagnetic field and makes to answer magnetic piston 7 descending; The connection of circulation like this and cut off circuit, makes electromagnetic coil 13 generate an electromagnetic field to pull to answer magnetic piston 7 up and allow iron core spring 6 promote to answer magnetic piston 7 descending, constantly the air in vacuum tank is extracted out and enter in air.

Claims

1. vacuumize a high-efficiency energy-saving electric magnetic device, it is characterized in that: the described high-efficiency energy-saving electric magnetic device that vacuumizes comprises protecting crust, electromagnetic coil, negative pressure shell, bleeder hole, sealing cone, sealed cap, iron core spring, answers magnetic piston, fixed plug, internal taper hole, vent, gas outlet valve, exhaust tube, field controller;

In protecting crust, be provided with electromagnetic coil, electromagnetic coil is fixed on the lower part outside negative pressure shell, and protecting crust is fixed on the outside protection electromagnetic coil of the lower part of negative pressure shell; Below the outside of protecting crust, one side is fixed with foot rest, and the lower end of foot rest protects exhaust tube not oppressed lower than negative pressure shell lower end, and the lower end of foot rest is fixed on the vehicle frame of automobile;

The circuit connecting electromagnetic coil is connected with field controller, and the circuit of field controller is connected with insulated electric conductor, and field controller is arranged in protecting crust;

Sealed cap, iron core spring are installed in negative pressure shell, answer magnetic piston, fixed plug, magnetic piston is answered to be arranged on the upper part of the inner chamber of negative pressure shell, iron core spring fitting is at the lower part of the inner chamber of negative pressure shell, the lower end of iron core spring is pressed in lower end in negative pressure shell, top, upper end is pressed in the underpart of answering magnetic piston, answers magnetic piston can slide up and down in the inner chamber of negative pressure shell; The sealing neck of answering the lower part of the consent in magnetic piston is provided with sealed cap, the capped pipe part of sealed cap can slide up and down on the periphery of sealing neck, in consent, be provided with fixed plug to limit sliding distance during sealed cap upward sliding, the fixing employing interference fit of fixed plug in consent is fixed or screw-thread fit is fixed or adopt jump ring to be stuck in the two ends of the jump-ring slot internal fixtion fixed plug in consent; The passage of bleeding of answering on magnetic piston can be closed when the inner sealing surface that the inner top of sealed cap divides coordinates with annular sealing surface and seals, when the inner sealing surface that the inner top of sealed cap divides separates with annular sealing surface, the passage of bleeding of answering on magnetic piston can be opened; On the periphery of the sealing neck of the lower end in negative pressure shell, cover has sealed cap, and the periphery of the sealing neck of the lower end of sealed cap in negative pressure shell can slide up and down; Inner sealing surface in sealed cap coordinates the passage of bleeding that can seal or open and enter in negative pressure shell with the annular sealing surface of sealing neck end; When answering magnetic piston stroking upward, the inner chamber part of answering the negative pressure shell of magnetic piston lower part is pumping chamber; When answering magnetic descent of piston, the inner chamber part of the negative pressure shell of magnetic piston upper part is answered to be squish chamber; Be fixed with exhaust tube at the bleeder hole place of the lower end of negative pressure shell, the other end of exhaust tube is connected with vacuum tank, and the endoporus of exhaust tube communicates with bleeder hole and vacuum tank; Be provided with gas outlet valve in the upper end of negative pressure shell, the lower part of gas outlet valve is fixed in the center hole of the overlying one end of negative pressure shell, and the upper-end surface of negative pressure shell is exposed in the upper end of gas outlet valve;

Described protecting crust is the hollow cavity of annular, and hollow cavity has string holes, and be provided with the parts installed in field controller, electromagnetic coil and negative pressure shell and negative pressure shell in hollow cavity, string holes is the hole allowing insulated electric conductor pass; The inner of the annular housing of hollow cavity is fixed on negative pressure shell;

For the ease of protecting crust processing and be convenient to accessory to load in protecting crust, described protecting crust is the assemblying body after segmentation, and after the annular position of protecting crust is divided into two parts, recombinant is together;

The inner chamber of described negative pressure shell is circular cylindrical cavity, and the cylndrical surface of columniform cavity is smooth curved surface; Upper end on the center line of inner chamber has that center hole passes negative pressure shell, lower end has bleeder hole to pass negative pressure shell; There is sealing neck protruding upward at the middle part of the lower end in negative pressure shell, the upper end portion of sealing neck is annular sealing surface, the inside of sealing neck is bleeder hole, when the inner sealing surface of sealed cap does not seal with annular sealing surface, bleeder hole is communicated with pumping chamber by air passing hole, and the inner sealing surface of sealed cap coordinates with the annular sealing surface of sealing neck;

Described gas outlet valve comprises hollow valve body and sealing cone, and hollow valve body is hollow tubular, and internal taper hole is in the middle part of the inner chamber of hollow tubular or middle and lower part, and the internal diameter of the upper part of the internal taper hole in hollow tubular internal diameter that is large, lower part is little; There is return-air sealed end the lower end of hollow valve body, the lower end surface of return-air sealed end in the lower end of hollow valve body, upper-end surface is internal taper hole, the large end of internal taper hole communicates with the upper end of gas outlet valve, small end communicates with the lower end of gas outlet valve, and the inner conical surface of internal taper hole is provided with sealing cone; Described internal taper hole is the circular hole having tapering, and the face of circular hole is inner conical surface; The small end of internal taper hole under, hold upper greatly, inner conical surface with seal the male cone (strobilus masculinus) of bore and coordinate, can inner conical surface be sealed under the effect of the gravity of sealing cone self, inner conical surface can be opened when sealing and having suction above cone by suction and seal and bore the passage sealed; Sealing cone air pressure is above larger, and sealing cone is better with the gluing, sealing effect of inner conical surface; Inner conical surface can be opened when being with the air of pressure from the endoporus of hollow valve body lower end and form passage with sealing the sealing of boring;

For the ease of negative pressure shell processing and be convenient to accessory to load in negative pressure shell, described negative pressure shell is the assemblying body after segmentation; The upper end of the circular cylindrical cavity part in negative pressure shell is divided into two sections, the main body that the upper part of segmentation place is pump cover, lower part is negative pressure shell, center hole is on pump cover, and bleeder hole is at the middle part of the main body lower end of negative pressure shell, and the body combination of pump cover and negative pressure shell becomes a composite entity; Or, the lower end of the circular cylindrical cavity part in negative pressure shell is divided into two sections, the main body that the lower part of segmentation place is pump cover, upper part is negative pressure shell, bleeder hole is at the middle part of pump cover, center hole is at the middle part of the upper end of the main body of negative pressure shell, and the body combination of pump cover and negative pressure shell becomes a composite entity;

Described magnetic piston of answering is columniform iron core, and the periphery of columniform iron core is smooth periphery, and smooth periphery has the annular groove of depression, and annular groove is embedded with seal ring; Described periphery coordinates with the inner chamber of negative pressure shell can the inner chamber of sealed negative-pressure shell, and can slide in the inner chamber of negative pressure shell; There is penetration hole the cylindrical central portion position of described columniform iron core, and penetration hole communicates with squish chamber and pumping chamber; The upper part of described penetration hole runs through the upper-end surface of iron core, lower part runs through iron core lower end surface, the lower part of penetration hole is vent, the upper part of penetration hole is consent, the sealing neck of annular protruding upward is had in the bottom of consent, the endoporus of sealing neck portion is the upper part of vent, between the periphery and the consent of sealing neck portion of sealing neck, have the groove of annular, the groove of annular is for holding the capped pipe part of sealed cap; The upper-end surface of described sealing neck is smooth annular sealing surface, and the periphery of sealing neck is smooth periphery; It is consent on vent; Described vent is the via hole allowing air pass through, and below annular sealing surface, communicates with pumping chamber and consent; Described consent is the hole of installation and fixing fixed plug, on sealing neck and outside sealing neck, communicates with squish chamber and vent;

Described fixed plug be restriction be arranged on the distance of answering the sealed cap on the sealing neck in magnetic piston to move up, centre has the plug of vent, described plug to be that centre has the cylinder of through hole or annular ring or jump ring circle; Fixed plug is centre when having a cylinder of through hole, and the fixing employing interference fit in consent is fixed or screw-thread fit is fixed or adopt jump ring to be stuck in the two ends of the jump-ring slot internal fixtion cylinder in consent; When fixed plug is annular ring, the fixing employing interference fit in consent is fixed or is adopted jump ring to be stuck in the two ends of the jump-ring slot internal fixtion annular ring in consent; When fixed plug is jump ring circle, directly jump ring is stuck in consent;

Described annular sealing surface is the sealing surface of the flat smooth of ring, and annular sealing surface coordinates with the inner sealing surface in sealed cap in the upper end of the sealing neck of answering the upper end of sealing neck of magnetic piston to coordinate with the inner sealing surface of sealed cap and in the middle part of the lower end of the inner chamber of negative pressure shell respectively;

Described sealed cap is the circular pipe type cap body of top seal, and it is inner sealing surface that the inner top of sealed cap divides, and the cylindrical parts near inner sealing surface has air passing hole;

Described sealing cone is cone or cone cylinder, and the annular surface of cone or cone cylinder is the male cone (strobilus masculinus) having tapering; The male cone (strobilus masculinus) of sealing cone and inner conical surface press down by sealing the gravity of boring self and seal inner conical surface when sealing;

Described field controller controls the controller that generates an electromagnetic field of electromagnetic coil, control time and the time length generated an electromagnetic field that electromagnetic field produces and after generating an electromagnetic field at every turn to the interval time generated an electromagnetic field again for the second time;

Described exhaust tube connects the bleeder hole of negative pressure shell and the hollow tubular of vacuum tank;

Described bleeder hole be air enter the inner chamber of negative pressure shell through air passing hole, sealing neck center portion; There is annular sealing surface the upper end of the bleeder hole in sealing neck, and when the annular sealing surface of the sealing neck of protecting crust lower end does not install sealed cap, pumping chamber communicates with bleeder hole;

The air extracted in vacuum tank is laid in and is waited to press in pumping chamber, extrudes air and produce air pressure and discharge outside negative pressure shell in squish chamber; In squish chamber during exhaust, pumping chamber communicates with squish chamber; When discharging air in squish chamber, pumping chamber is by sealing cone and answer the internal taper hole in magnetic piston seal and disconnect the passage of bleeding entering squish chamber;

Described vacuumizes high-efficiency energy-saving electric magnetic device in the process of exhaust, control bleed-off passage and go out air passageways one-way check valve in there is no return spring; When pumping chamber exhaust, the suction of answering magnetic piston stroking upward to produce is opened the sealing of the sealing neck of sealed cap and negative pressure shell lower end and opens the passage of bleeding, and is arranged on and answers the automatic decline return and close the passage of bleeding entered in squish chamber and seal under the effect of self gravitation of the sealing surface on the sealing neck in magnetic piston; When squish chamber exhaust, the passage that the sealing cone be arranged on the internal taper hole of gas outlet valve utilizes the gravity of self to make sealing bore automatic decline return and closes the discharge on gas outlet valve seals, and answers magnetic descent of piston and makes to produce pumping chamber in pressure promotion and be arranged on and answer the up passage of bleeding entered in squish chamber of then opening of the sealed cap on the sealing neck in magnetic piston; When discharging air in squish chamber, under the effect of outlet pressure, promote sealing cone on the internal taper hole of gas outlet valve up and open the passage of giving vent to anger of gas outlet valve, being arranged on and answering the sealed cap on the sealing neck in magnetic piston to utilize the gravity of self to make sealed cap decline return and close and answer the passage of bleeding on magnetic piston to seal automatically;

During use, the power-on circuit of insulated electric conductor and field controller connected by teacher of the opening position key operation, the power-on circuit that field controller connects electromagnetic coil generates an electromagnetic field, the attraction force that electromagnetic field produces pulls answers the pressure of magnetic piston overpowers iron core spring to move down, when answering magnetic piston to start descending, descending return under being arranged on the effect of the negative pressure of vacuum of the sealed cap on the sealing neck of lower end in negative pressure shell under the effect of self gravitation and in vacuum tank and close the bleed-off passage entering pumping chamber, sealing in gas outlet valve is bored descending return under the effect of the gravity of self and seals the inner conical surface of gas outlet valve, cut off the outlet passageway in squish chamber, answer magnetic piston when descending, the air of answering magnetic piston to promote to enter in pumping chamber and make air produce internal pressure, there is the air of pressure upwards wash the sealing of the inner sealing surface of annular sealing surface and sealed cap open from the upper end that the vent of answering in magnetic piston enters into the sealing neck of answering in magnetic piston and continue up after sealed cap is shifted, enter after the vent in fixed plug again in squish chamber after the air passing hole on sealed cap,

Answer magnetic descent of piston move to the compression stage of compression iron core spring spacing time, the power-on circuit of field controller cutoff solenoid, electromagnetic field disappears, and answers magnetic piston up under the promotion of iron core spring; When answering magnetic piston to start up, be arranged on and answer the sealed cap on the sealing neck in magnetic piston descending and close the passage of bleeding that air enters squish chamber under the effect of the gravity of self; When answering magnetic piston stroking upward, answer the up of magnetic piston and make the air in squish chamber create pressure, having the air of pressure to enter into internal taper hole in gas outlet valve from the endoporus of the sealed end of gas outlet valve lower end, to promote sealing cone up and open the sealing channel of gas outlet valve, and the air in squish chamber is entered in air after gas outlet valve; Answer magnetic piston when up, magnetic piston is answered also to make to create pull of vacuum in pumping chamber, it is up and the annular sealing surface of the sealing neck upper end of negative pressure shell lower end is separated with the inner sealing surface of sealed cap that pull of vacuum inhales motive sealing cap, and the air in vacuum tank enters in the pumping chamber of answering below magnetic piston in negative pressure shell from the air passing hole of exhaust tube after suction port again through sealed cap;

Answer magnetic piston up when putting in place under the promotion of iron core spring, descending return under being arranged on the effect of the negative pressure of vacuum of the sealed cap on the sealing neck of lower end in negative pressure shell under the effect of self gravitation and in vacuum tank and close the bleed-off passage entering pumping chamber, sealing in gas outlet valve is bored descending return under the effect of the gravity of self and seals the inner conical surface of gas outlet valve, has cut off the outlet passageway in squish chamber and has made air not return pumping chamber; Now, the power-on circuit that field controller connects again electromagnetic coil again generates an electromagnetic field and makes to answer magnetic descent of piston; The connection of circulation like this and cut off circuit, makes electromagnetic coil generate an electromagnetic field to pull to answer magnetic piston stroking upward and allow iron core spring promote to answer magnetic descent of piston, constantly the air in vacuum tank is extracted out and enter in air.

2. according to claim 1ly vacuumizing high-efficiency energy-saving electric magnetic device, it is characterized in that: keep the shape of protecting crust to ensure protecting crust that electromagnetic coil can be protected not to be damaged, in the inner chamber of protecting crust, manufacture the skeleton having support.

3. according to claim 1ly vacuumize high-efficiency energy-saving electric magnetic device, it is characterized in that: the air in the squish chamber promoting in negative pressure shell to enable to answer magnetic piston enters gas outlet valve, adopts iron core spring as the power promoting to answer magnetic piston stroking upward.

4. according to claim 1ly vacuumize high-efficiency energy-saving electric magnetic device, it is characterized in that: adopt the teacher position key operation be connected with insulated electric conductor to come connection and the cut-out of the connecting circuit of controlling magnetic field controller.

5. according to claim 1ly vacuumize high-efficiency energy-saving electric magnetic device, it is characterized in that: the described compact structure vacuumizing high-efficiency energy-saving electric magnetic device, vibrate little, utilization rate of electrical is high, powerful, the electric vehicle and the internal-combustion engines vehicle that are applicable to the hydraulic braking of vacuum servo formula are installed and used, and also can produce vacuum normally and realize vacuum servo after internal-combustion engine shuts down; The market prospects of industrialization are good, commercial value is high, manufacture and use all very convenient.

6. one kind vacuumizes the manufacture method of high-efficiency energy-saving electric magnetic device, it is characterized in that: during fabrication, iron core spring adopts the material manufacture of a type in metal and rubber or two types, when adopting rubber material to manufacture, iron core spring creates hollow tubular type spring, utilizes the elasticity of rubber and contractibility to realize the function of spring;

Protecting crust creates the hollow cavity of annular, and hollow cavity manufactures string holes, and string holes creates the hole allowing insulated electric conductor pass; Be provided with the parts installed in field controller, electromagnetic coil and negative pressure shell and negative pressure shell in hollow cavity, the inner of the annular housing of hollow cavity is fixed on negative pressure shell;

Conveniently assemble, during fabrication, after protecting crust is divided into two-part manufacture from annular position, recombinant together for protecting crust;

The inner chamber of negative pressure shell creates columniform cavity, and the periphery of columniform cavity creates smooth curved surface; Upper end on the center line of inner chamber manufacture have through negative pressure shell center hole, lower end manufactures has bleeder hole to pass negative pressure shell; The middle part of the lower end in negative pressure shell manufactures sealing neck protruding upward, the upper end portion of sealing neck creates annular sealing surface, the inside of sealing neck creates bleeder hole, when the inner sealing surface of sealed cap does not seal with annular sealing surface, bleeder hole is communicated with pumping chamber by air passing hole, and the inner sealing surface of sealed cap coordinates with the annular sealing surface of sealing neck;

Gas outlet valve creates hollow valve body and sealing cone two-part, hollow valve body creates hollow tubular, internal taper hole is manufactured on middle part or the middle and lower part of the inner chamber of hollow tubular, and the internal diameter that the internal diameter that the upper part of the internal taper hole in hollow tubular manufactures is large, lower part manufactures is little; The lower end of hollow valve body manufactures return-air sealed end, the lower end surface of return-air sealed end is manufactured on the lower end of hollow valve body, upper-end surface creates internal taper hole, the large end of internal taper hole communicates with the upper end of gas outlet valve, small end communicates with the lower end of gas outlet valve, and the inner conical surface of internal taper hole is provided with sealing cone; Described internal taper hole creates the circular hole of tapering, and the face of circular hole creates inner conical surface; The small end of internal taper hole under, hold upper greatly, can inner conical surface be sealed under the effect of the gravity of sealing cone self, inner conical surface can be opened with sealing by suction when cone has suction above and bore the passage sealed sealing; Sealing cone air pressure is above larger, and sealing cone is better with the gluing, sealing effect of inner conical surface; Inner conical surface can be opened when being with the air of pressure from the endoporus of hollow valve body lower end and form passage with sealing the sealing of boring;

For the ease of negative pressure shell processing and be convenient to accessory to load in negative pressure shell, described negative pressure shell create segmentation processing manufacture after assemblying body; The upper end of the circular cylindrical cavity part in negative pressure shell is divided into two sections of manufactures, the main body that upper part creates pump cover, lower part creates negative pressure shell of segmentation place, center hole is manufactured on pump cover, bleeder hole is manufactured on the middle part of the main body lower end of negative pressure shell, and being combined into after the main body after pump cover and negative pressure shell manufactures is a composite entity; Or, the lower end of the circular cylindrical cavity part in negative pressure shell is divided into two sections of manufactures, the main body that lower part creates pump cover, upper part creates negative pressure shell of segmentation place, bleeder hole is manufactured on the middle part of pump cover, center hole is manufactured on the middle part of the upper end of the main body of negative pressure shell, and being combined into after the main body of pump cover and negative pressure shell manufactures is a composite entity;

Answer magnetic piston to create columniform iron core, the periphery of columniform iron core creates smooth periphery, and smooth periphery manufactures the annular groove having depression, and annular groove is embedded with seal ring; Described periphery coordinates with the inner chamber of negative pressure shell can the inner chamber of sealed negative-pressure shell, and can slide in the inner chamber of negative pressure shell; The cylindrical central portion position of described columniform iron core manufactures penetration hole, and penetration hole communicates with squish chamber and pumping chamber; Described penetration hole creates that upper part runs through the upper-end surface of iron core, lower part runs through iron core lower end surface, the lower part of penetration hole creates vent, the upper part of penetration hole creates consent, the sealing neck having annular protruding upward is manufactured in the bottom of consent, the endoporus of sealing neck portion creates the upper part of vent, between the outer ring surface and the consent of sealing neck portion of sealing neck, manufacture the groove of annular, the groove of annular is for holding the capped pipe part of sealed cap; The upper-end surface of described sealing neck creates smooth annular sealing surface, and the periphery of sealing neck creates smooth periphery; Manufacture on vent and have consent; Described vent creates the via hole allowing air pass through, and is manufactured on below annular sealing surface, communicates with pumping chamber and consent; Described consent creates installation and the hole of fixing fixed plug, is manufactured on above and outside sealing neck of sealing neck, communicates with squish chamber and vent;

Fixed plug creates the plug that there is vent centre, and described plug creates centre the cylinder of through hole or annular ring or jump ring circle, can limit the distance being arranged on and answering the sealed cap on the sealing neck in magnetic piston to move up; Fixed plug creates centre when having a cylinder of through hole, and the fixing employing interference fit in consent is fixed or screw-thread fit is fixed or adopt jump ring to be stuck in the two ends of the jump-ring slot internal fixtion cylinder in consent; When fixed plug creates annular ring, the fixing employing interference fit in consent is fixed or is adopted jump ring to be stuck in the two ends of the jump-ring slot internal fixtion annular ring in consent; When fixed plug creates jump ring circle, directly jump ring is stuck in consent;

Described annular sealing surface creates the sealing surface of the flat smooth of ring, and the upper end of sealing neck in the middle part of the lower end being manufactured on the inner chamber of answering the upper end of sealing neck of magnetic piston to coordinate with the inner sealing surface of sealed cap and to be manufactured on negative pressure shell respectively coordinates with the inner sealing surface in sealed cap;

Described sealed cap creates the circular pipe type cap body of top seal, and the inner top of sealed cap divides and creates inner sealing surface, and the cylindrical parts manufacture near inner sealing surface has air passing hole;

Sealing cone creates cone or cone cylinder, and the annular surface of cone or cone cylinder creates the male cone (strobilus masculinus) of tapering; The male cone (strobilus masculinus) of sealing cone and inner conical surface press down by sealing the gravity of boring self and seal inner conical surface when sealing;

Field controller creates and controls the controller that generates an electromagnetic field of electromagnetic coil, control time that electromagnetic field produces and the time that generates an electromagnetic field length and after generating an electromagnetic field at every turn to the interval time generated an electromagnetic field again for the second time;

Exhaust tube creates and connects the bleeder hole of negative pressure shell and the hollow tubular of vacuum tank;

Bleeder hole create air enter the inner chamber of negative pressure shell through via hole, be manufactured on sealing neck center portion; The upper end of the bleeder hole in sealing neck manufactures annular sealing surface, and when the annular sealing surface of the sealing neck of protecting crust lower end does not install sealed cap, pumping chamber communicates with bleeder hole;

Keeping the shape of protecting crust to ensure protecting crust that electromagnetic coil can be protected not to be damaged, in the inner chamber of protecting crust, manufacturing the skeleton having support;

Air in the squish chamber promoting in negative pressure shell to enable to answer magnetic piston enters gas outlet valve, adopts iron core spring as the power promoting to answer magnetic piston stroking upward;

In protecting crust, be provided with electromagnetic coil, electromagnetic coil is fixed on the lower part outside negative pressure shell, and protecting crust is fixed on the outside protection electromagnetic coil of the lower part of negative pressure shell; Below the outside of protecting crust, one side is fixed with foot rest, and the lower end of foot rest protects exhaust tube not oppressed lower than negative pressure shell lower end, and the lower end of foot rest is fixed on the vehicle frame of automobile; The circuit connecting electromagnetic coil is connected with field controller, and the circuit of field controller is connected with insulated electric conductor, and field controller is arranged in protecting crust; Sealed cap, iron core spring are installed in negative pressure shell, answer magnetic piston, fixed plug, magnetic piston is answered to be arranged on the upper part of the inner chamber of negative pressure shell, iron core spring fitting is at the lower part of the inner chamber of negative pressure shell, the lower end of iron core spring is pressed in lower end in negative pressure shell, top, upper end is pressed in the underpart of answering magnetic piston, answers magnetic piston can slide up and down in the inner chamber of negative pressure shell; The sealing neck of answering the lower part of the consent in magnetic piston is provided with sealed cap, the capped pipe part of sealed cap can slide up and down on the periphery of sealing neck, in consent, be provided with fixed plug to limit sliding distance during sealed cap upward sliding, the fixing employing interference fit of fixed plug in consent is fixed or screw-thread fit is fixed or adopt jump ring to be stuck in the two ends of the jump-ring slot internal fixtion fixed plug in consent; The passage of bleeding of answering on magnetic piston can be closed when the inner sealing surface that the inner top of sealed cap divides coordinates with annular sealing surface and seals, when the inner sealing surface that the inner top of sealed cap divides separates with annular sealing surface, the passage of bleeding of answering on magnetic piston can be opened; On the periphery of the sealing neck of the lower end in negative pressure shell, cover has sealed cap, and the periphery of the sealing neck of the lower end of sealed cap in negative pressure shell can slide up and down; Inner sealing surface in sealed cap coordinates the passage of bleeding that can seal or open and enter in negative pressure shell with the annular sealing surface of sealing neck end; When answering magnetic piston stroking upward, the inner chamber part of answering the negative pressure shell of magnetic piston lower part is pumping chamber; When answering magnetic descent of piston, the inner chamber part of the negative pressure shell of magnetic piston upper part is answered to be squish chamber; Be fixed with exhaust tube at the bleeder hole place of the lower end of negative pressure shell, the other end of exhaust tube is connected with vacuum tank, and the endoporus of exhaust tube communicates with bleeder hole and vacuum tank; Be provided with gas outlet valve in the upper end of negative pressure shell, the lower part of gas outlet valve is fixed in the center hole of the overlying one end of negative pressure shell, and the upper-end surface of negative pressure shell is exposed in the upper end of gas outlet valve.