CN108252903A - A kind of Water pump pressure controller accurately controlled - Google Patents
A kind of Water pump pressure controller accurately controlled Download PDFInfo
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- CN108252903A CN108252903A CN201810024003.7A CN201810024003A CN108252903A CN 108252903 A CN108252903 A CN 108252903A CN 201810024003 A CN201810024003 A CN 201810024003A CN 108252903 A CN108252903 A CN 108252903A
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- Prior art keywords
- spool
- reaction diaphragm
- water
- water pump
- locating sleeve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of Water pump pressure controllers accurately controlled, including housing, the reaction diaphragm being arranged in housing, upper locating sleeve is equipped in housing, balance compression spring is equipped in upper locating sleeve, reaction diaphragm includes mobile substrate, retainer plate and the expanding ring of the mobile substrate of connection and retainer plate, it is embedded with support substrate respectively in retainer plate and mobile substrate, expanding ring is corrugated, disk upper surface is compressed equipped with lower locating sleeve, several escape groove are equipped on upper locating sleeve, positioning bar piece is formed between adjacent escape groove, lower locating sleeve, which corresponds to, is equipped with locating groove at positioning bar piece, the lower end of positioning bar piece is plugged in corresponding locating groove.The present invention can be effectively prevented from the influence of the shape and scale error of reaction diaphragm to the startup pressure of water pump, and it balances compression spring and can obtain sufficient positioning on axial length, there is flexural deformation so as to be effectively prevented from balance compression spring, it is ensured that water pump control signal stablizes output.
Description
Technical field
The present invention relates to a kind of water pump electronic pressure controllers, and in particular to a kind of water-aspirator pressure control accurately controlled
Device.
Background technology
In existing water pump water supply system, in order to realize the normal work of water pump and automatically control, it usually needs configuration
One electronic pressure controller.As shown in Figure of description 1, existing electronic pressure controller is included by pedestal 11 and upper cover 12
The housing 1 being spliced to form has the water inlet interface and a water outlet mouthpiece being attached in water supply pipe, housing on housing
The flexible reaction diaphragm 2 of interior setting, reaction diaphragm is associated with the displacement sensor of tongue tube etc, and reaction diaphragm is by shell
Internal body portion is divided into the working chamber of water-in and water-out orifice and the pressure chamber equipped with balance compression spring 5, the balance in pressure chamber
Compression spring is pressed on the centre of reaction diaphragm, so as to form a pressure to reaction diaphragm.When water pump is started to work, in housing with
The working chamber of water-in and water-out orifice intakes and generates certain hydraulic pressure, the water pressure in working chamber and another lateral pressure of diaphragm
The elastic force of the balance compression spring of chamber balances each other.When the pressure reduction of water pump water supply system, the water pressure in the working chamber of housing is low
In setting value, balance compression spring pushes reaction diaphragm to be acted to working chamber side, and then drives corresponding displacement sensor movement
And a control signal is generated, control signal after control circuit is handled starts water pump and restarts to supply water automatically.
In order to position balance compression spring, one locating sleeve 16 for installation balance compression spring of setting usually in housing,
Compression spring is balanced then to be mounted in the locating sleeve.
However there are following defects for existing Water pump pressure controller：First, when the hydraulic pressure of working chamber reaches setting value,
The balance of reaction diaphragm is the water pressure and the deformation elastic force of reaction diaphragm itself and the balance pressure of pressure chamber by working chamber
What the elastic force of spring was realized, the elastic force of balancing spring therein is easier to accurately control, and reaction diaphragm is usual due to its shape
In bowl-type, therefore, non-linear relation is formed between the deformation elastic force of reaction diaphragm and its deformation quantity in the axial direction, that is,
It says, the deformation elastic force of reaction diaphragm can be seriously affected by own form and thickness error, be controlled so as to cause water-aspirator pressure
The pressure control values that device is finally set have larger fluctuation, influence the control accuracy of pressure.Further, since water-aspirator pressure controls
Reaction diaphragm needs corresponding deformation space to device at work, therefore, in reaction diaphragm and for installing determining for balance compression spring
Tool is there are one gap between the casing of position, in order to the deformation of reaction diaphragm.That is, the balance pressure in locating sleeve
Spring is compressing reaction diaphragm one end in no positioning states, and compressed balance compression spring easily generates flexural deformation, so as to by card
Extremely in the end of locating sleeve, and then influence stablizing for control signal and export.
Invention content
First purpose of the present invention be in order to solve present in existing Water pump pressure controller for controlling water pump
The problem of pressure set points error of startup is big provides a kind of Water pump pressure controller accurately controlled, can be effectively prevented from
Influence of the shape and scale error of reaction diaphragm to the startup pressure of water pump.
Second object of the present invention is in order to which the balance compression spring solved present in existing Water pump pressure controller can not
Obtain completely position thus easily lead to the problem of stuck phenomenon, a kind of Water pump pressure controller accurately controlled is provided,
Balance compression spring can obtain sufficient positioning on axial length, flexural deformation occurs so as to be effectively prevented from balance compression spring, it is ensured that
Water pump control signal stablizes output.
To achieve these goals, the present invention uses following technical scheme：
A kind of Water pump pressure controller accurately controlled, including be made of pedestal and upper cover housing, be arranged in housing with
The associated reaction diaphragm of displacement sensor, the housing are equipped with the water inlet interface connected with working chamber and water outlet mouthpiece, institute
It states upper cover madial wall to correspond to equipped with upper locating sleeve at reaction diaphragm, the pedestal and upper cover are respectively equipped with crimping in stitching portion
Side, the mobile substrate of the reaction diaphragm including central circular, the retainer plate of periphery and is connected to mobile substrate and retainer plate
Between expanding ring, in the mobile substrate and retainer plate are generally aligned in the same plane, the retainer plate is crimped on pedestal and upper cover
Between crimping side, reaction diaphragm is separated out the working chamber of lower part and the pressure chamber on top, the retainer plate and shifting in housing
The support substrate of hard is embedded in dynamic substrate respectively, the expanding ring is in the axial cross section of reaction diaphragm in reciprocating and turning-back
Zigzag, the upper locating sleeve is interior to be equipped with balance compression spring, and the lower end for balancing compression spring compresses reaction diaphragm.
It is known that when reaction diaphragm deforms after the hydraulic pressure by working chamber, the balance compression spring of pressure chamber side and sense
The elastic force of diaphragm is answered to collectively form the resistance of reaction diaphragm deformation.Substantially it is in the one of bowl-type since existing reaction diaphragm is one
Body structure, when by the hydraulic pressure of working chamber, reaction diaphragm is to rely on the stretcher strain of its wall thickness and generate displacement sensor
Mobile, therefore, the resistance generated is larger, and correspondingly, the elastic force for balancing compression spring is smaller, that is to say, that the bullet of reaction diaphragm
Power proportion shared in reaction diaphragm deformation resistance is larger.In this way, when the shape of reaction diaphragm, size and material and molding
Technique is when changing or during error, can generate large effect to its deformation drag, so as to influence the deformation resistance of reaction diaphragm,
And then influence to start the control accuracy of pressure.The reaction diaphragm of the present invention is integrally connected by moving substrate, retainer plate and expanding ring
Connect composition, and be embedded respectively in retainer plate and mobile substrate can made of stainless steel thin slice hard support substrate.This
Sample, when having hydraulic pressure in working chamber, the retainer plate of reaction diaphragm periphery and the mobile substrate at center will not bend shape
Become, the mobile substrate at center is moved up and down, and then drive and be associated with by the elastic force that balance compression spring is overcome after hydraulic pressure at this time
Displacement sensor movement.Correspondingly, the expanding ring that axial cross section is serrated then can easily stretch radially.Namely
Say, expanding ring can be formed with dilatation as spring-like, we can as possible be reduced intermediate flexible by reasonably designing
The thickness of circle, so as to be effectively reduced the elastic resistance that expanding ring is formed when mobile substrate moves up and down, and then can be very big
Ground reduces proportion of the elastic force of reaction diaphragm shared by reaction diaphragm deformation resistance, reduces shape, size of reaction diaphragm etc.
Influence of the error to reaction diaphragm deformation elastic force is conducive to improve the control accuracy for the startup pressure value for starting water pump.
Preferably, being equipped with several flexible compression bars in the upside of reaction diaphragm, flexible compression bar includes loop bar and is plugged on set
Shank in bar, one end of the flexible compression bar are hinged on mobile substrate, and the other end of flexible compression bar is hinged on retainer plate
On, each flexible compression bar surrounds mobile substrate circular array.
When having hydraulic pressure in working chamber, reaction diaphragm deformation, compression bar elongation of stretching at this time.When hydraulic pressure reduces, stretch
Compression bar shortens.Since each flexible compression bar is sticked on expanding ring, so as to be effectively prevented from expanding ring when working chamber has hydraulic pressure
Upward bulging, and then the hydraulic pressure acted on expanding ring can be avoided to cause additional influence to the elastic force of expanding ring.
Preferably, being located at working chamber side in reaction diaphragm is equipped with undertaking disk, peace is equipped at the center for accepting disk
Tubing, institute's displacement sensors are embedded in installation casing, are located at pressure chamber side equipped with compressing disk in reaction diaphragm,
The center for compressing disk upper surface is equipped with connection boss, and connection boss is equipped with trip bolt, and the trip bolt passes through sensing
It is connected after diaphragm with accepting disk, the lower end of the balance compression spring is set on connection boss.
The present invention is set respectively in the both sides up and down of reaction diaphragm to be compressed disk and accepts disk, thus can by reaction diaphragm
It is clamped in centre by ground, not only improves the installation and connection of displacement sensor, and is conducive to improve the intensity of reaction diaphragm.Fastening
Tapping screw then can be used in screw, is fitted together so as to facilitate to compress disk, reaction diaphragm and accept disk, and connects convex
Platform is then conducive to improve trip bolt and compresses the bonding strength of disk.
Preferably, it is equipped with moveable spool in water inlet interface and compresses the resetting spring of spool, the spool
Magnetic circle is equipped with, the working chamber is interior to be equipped with electromagnet with magnetic circle relative position, and there are one non-return positions for the spool tool
With an operating position, when spool is in non-return position, it is spaced from each other between water inlet interface and water outlet mouthpiece；When spool is in
During operating position, the magnetic circle on spool is connect with electromagnet magnetic, mutual conduction between water inlet interface and water outlet mouthpiece.
The present invention sets an electromagnet in housing, while sets on spool one and can be connected by electromagnet magnetic
Magnetic circle.When water pump is stopped, resetting spring can push spool to act and block water inlet interface, and spool at this time is in
Non-return position acts on so as to fulfill the non-return of Water pump pressure controller, avoids flow from one lateral water inlet interface one of water outlet mouthpiece
It flows backwards side.When water pump is started to work, the flow with pressure is formed at water inlet interface, so as to push the spool in water inlet interface
Overcome the elastic force of resetting spring and move, spool at this time is in operating position, phase mutual conductance between water inlet interface and water outlet mouthpiece
It is logical.Since electromagnet adsorbs the magnetic circle of spool at this time, thus it is accurately located spool.Hydraulic pressure at water inlet interface is in volume
In fixed range during fluctuation, spool is adsorbed by electromagnet and is positioned always, it can thus be ensured that water system flow is basicly stable,
It avoids causing fluctuating widely for flow due to the fluctuation of hydraulic pressure.
Preferably, the water inlet interface is located at the lower end of housing, the water outlet mouthpiece is located at the side of housing and inside
Extension is connected with water inlet interface, and the spool is cylindrical, and the upper end of spool is equipped with capping, and the magnetic circle is located at capping
On, the spool side wall is equipped with Inlet and outlet water intercommunicating pore and hydraulic pressure delivery outlet, and drainage guide groove is equipped in the housing, drains guide groove
Upper end connects working chamber, and when spool is in operating position, electromagnet adsorbs the magnetic circle of spool upper end, water outlet mouthpiece and spool
Inlet and outlet water intercommunicating pore it is corresponding, hydraulic pressure delivery outlet on spool is connected with draining the lower end of guide groove.
It since spool is cylindrical, and sets and covers in upper end, therefore, not only facilitate processing but also convenient in water inlet interface
Assembling and movement.Particularly, water inlet interface and the perpendicular cross-like of water outlet mouthpiece, therefore, we only need to be in vertical spool
Side wall set an Inlet and outlet water intercommunicating pore, you can when spool is in operating position, make the Inlet and outlet water intercommunicating pore of spool with going out
Water interface is corresponding, so as to which water inlet interface and water outlet mouthpiece be made to be conducted.And water pump, when being stopped, vertical spool more has
Conducive to falling to non-return position.When spool is in non-return position, do not connect between the hydraulic pressure delivery outlet and drainage guide groove on spool
It is logical；When water pump is started to work, operating position is moved on spool, at this time the lower end of the hydraulic pressure delivery outlet on spool and drainage guide groove
It is connected, so as to which working chamber be made to be connected with water inlet interface.Since the working chamber of the present invention is only connect by draining guide groove with water inlet
Mouth is connected, therefore it becomes cavity of a relative closure, that is to say, that the water impact at water inlet interface will not be to work
The pressure of chamber impacts, so as to be conducive to the stabilization of hydraulic pressure in working chamber.
Preferably, the reaction diaphragm is made of modified TPV.It is higher antifatigue so as to have reaction diaphragm
Flexibility under intensity and low temperature is conducive to prolong the service life, it is ensured that normal use at low ambient temperatures.
Preferably, compressing disk upper surface equipped with the lower locating sleeve coaxial with upper locating sleeve, it is described upper and lower fixed
The internal diameter of position casing is identical, and the escape groove of several sectors is equipped on the lower face of upper locating sleeve, and escape groove surrounds upper positioning
The axis circular array of casing, the escape groove are upwardly extended along the axis of upper locating sleeve, so as in adjacent escape groove
Between form positioning bar piece, the upper surface of the lower locating sleeve corresponds at positioning bar piece equipped with the positioning extended axially downward
Card slot, the lower end of the positioning bar piece are plugged in corresponding locating groove.
Since the balance compression spring of the present invention is provided in upper and lower locating sleeve, and upper and lower locating sleeve phase interfix
It is connected together, therefore, when the water pressure fluctuations in working chamber cause reaction diaphragm to generate deformation, lower locating sleeve can follow sensing
Diaphragm moves up and down, and the lower end of upper locating sleeve and the upper end of lower locating sleeve overlap always, so as to make inside
Balance compression spring can effectively be positioned always, avoid balance compression spring scaling when there is flexural deformation.Due to positioning above and below
The internal diameter of casing is identical, and therefore, upper and lower locating sleeve will not form step in lap-joint, so as to which balance compression spring is avoided to occur
Catching phenomenon.It is understood that we can be by the depth of reasonable design locating groove, so as to easily limit lower position
The maximum of casing moves up distance.When the hydraulic pressure in working chamber reaches certain value, reaction diaphragm can drive lower locating sleeve extremely
Extreme higher position, so as to avoid being damaged due to excessively high hydraulic pressure leads to the excessive tensile of reaction diaphragm.In addition, due to locating groove and
The equal circular array of corresponding positioning bar piece, it is thus ensured that the upper and lower locating sleeve being mutually inserted together remains same
Spindle Status.
Preferably, the lateral wall of the lower locating sleeve extends in the edge of locating groove equipped with radially side
Reinforcing rib piece, and the reinforcing rib piece of locating groove both sides is mutually parallel.
Since the lateral wall in lower locating sleeve is equipped with the reinforcing rib piece of radial direction, not only improves and improve the strong of lower locating sleeve
Degree, and the width of locating groove can be enable effectively to extend, so that it is guaranteed that the positioning bar piece on upper locating sleeve effectively blocks
Position is in locating groove and corresponding reinforcing rib piece.
Preferably, the mobile substrate upper surface of the reaction diaphragm, which is equipped with to recline, compresses the upper sealing bulge loop of disk, institute
The mobile substrate lower surface for stating reaction diaphragm is equipped with the lower sealing bulge loop for the undertaking disk that reclines.
When we will compress disk, reaction diaphragm and undertaking disk by trip bolt fits together, reaction diaphragm
Upper sealing bulge loop be snug against compressing disk, and the lower sealing bulge loop of reaction diaphragm is snug against accepting disk, so as to reality
Existing reaction diaphragm and disk, the sealing for accepting disk are compressed, avoid the water of working chamber by sensing the trip bolt of disc centre
Via is penetrated into pressure chamber.
Therefore, the present invention has the advantages that：Can be effectively prevented from reaction diaphragm shape and scale error to water
The influence of the startup pressure of pump, and balance compression spring and can obtain sufficient positioning on axial length, so as to be effectively prevented from putting down
There is flexural deformation in weighing apparatus compression spring, it is ensured that water pump control signal stablizes output.
Description of the drawings
Fig. 1 is a kind of structure diagram of the Water pump pressure controller of the prior art.
Fig. 2 is that the spool of the present invention is in a kind of structure diagram of non-return state.
Fig. 3 is a kind of structure diagram of reaction diaphragm.
Fig. 4 is a kind of structure diagram for mortgaging disk.
Fig. 5 is a kind of cross-sectional view of upper cover.
Fig. 6 is a kind of half sectional view of reaction diaphragm.
In figure：1st, housing 11, pedestal 111, crimping side 12, upper cover 13, water inlet interface 14, water outlet mouthpiece 15, upper fixed
Position casing 151, escape groove 152, positioning bar piece 16, locating sleeve 17, drainage guide groove 2, reaction diaphragm 21, mobile substrate
211st, it is upper sealing bulge loop 212, it is lower sealing bulge loop 22, retainer plate 23, expanding ring 24, support substrate 3, accept disk 31,
Installation casing 32, displacement sensor 4, compress disk 41, connection boss 42, trip bolt 43, lower locating sleeve 431,
Locating groove 432, reinforcing rib piece 5, balance compression spring 6, flexible compression bar 61, loop bar 62, shank 7, spool 71, magnetic
Circle 72, capping 721, locating convex block 73, positioning convex ring 74, Inlet and outlet water intercommunicating pore 75, hydraulic pressure delivery outlet 8, resetting spring
9th, electromagnet.
Specific embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 2, a kind of Water pump pressure controller accurately controlled, including the shell being made of pedestal 11 and upper cover 12
Body 1 sets flexible reaction diaphragm 2 between pedestal and upper cover, and reaction diaphragm is separated out the work of lower part in housing
Chamber and the pressure chamber on top.In addition, a water inlet interface for penetrating through working chamber straight up is set in the pedestal lower end of housing
13, one water outlet mouthpiece 14 is set in the side of pedestal, water outlet mouthpiece extends inwardly to and water inlet interface vertical connection.
As shown in figure 3, the reaction diaphragm of the present invention includes the circular mobile substrate 21 positioned at center, peripheral retainer plate
22 and the expanding ring 23 that is connected between mobile substrate and retainer plate, reaction diaphragm be made preferably by modified TPV, wherein
Mobile substrate and retainer plate it is flaky, be embedded the support substrate being made of stainless steel respectively in retainer plate and mobile substrate
24, and in mobile substrate and retainer plate be generally aligned in the same plane.Expanding ring is then corrugated, so as to make expanding ring in reaction diaphragm
Axial cross section in be in reciprocating and turning-back zigzag.Certainly, under the effect of no external force, expanding ring and mobile substrate, retainer plate
In being generally aligned in the same plane.
It is positioned in order to facilitate the installation of reaction diaphragm, we can set a circle to crimp respectively in the stitching portion of pedestal and upper cover
Side 111, the retainer plate of reaction diaphragm are crimped between pedestal and the crimping side of upper cover.Certainly, between pedestal and upper cover and pass through
The screw being arranged on crimping side is fixed.
For convenience of the installation of reaction diaphragm, we can set a undertaking disk 3 on the downside of the mobile substrate of reaction diaphragm,
One is set on the upside of the mobile substrate of reaction diaphragm and compresses disk 4, compresses the company of the centrally disposed cylinder of disk upper surface
Boss 41 is connect, the centrally disposed screwing through hole of boss is connected, trip bolt 42 is set in the screwing through hole, which wears downwards
It is connected after crossing reaction diaphragm with accepting disk.Preferably, tapping screw can be used in trip bolt, correspondingly, it would be desirable to
Screw via on reaction diaphragm is set, screw preset hole is set on disk is accepted, when we tighten trip bolt, you can make
Trip bolt passes through the screw via rear thread of reaction diaphragm to be connected in the screw preset hole for accepting disk.So as to make to compress circle
Disk, reaction diaphragm and undertaking disk connect into a component.
In addition, we can also be in the centrally disposed installation casing 31 integrally extended downwardly for accepting lower disk surface, peace
Displacement sensor 32 is embedded in tubing.Tongue tube preferably can be used in displacement sensor, certainly, it would be desirable to be set in housing
Corresponding induced magnet is put, and Water pump pressure controller should also include the controller of a controllable pump working state, position
Displacement sensor is electrically connected with the controller.
In addition, as shown in Fig. 2, Fig. 4, Fig. 5, we can be integrally provided vertical cylinder compressing disk upper surface
Lower locating sleeve 43 is integrally provided the upper locating sleeve 15 coaxial with lower locating sleeve on the madial wall of case top lid,
Setting balance compression spring 5 in upper locating sleeve, the lower end for balancing compression spring are set on connection boss, and balance the lower end patch of compression spring
By compressing disk.Also, it would be desirable to which 6 fan-shaped escape groove 151 are set on the lower face of upper locating sleeve, and escape groove is enclosed
Axis around upper locating sleeve equidistantly arranges in a ring, and escape groove is upwardly extended along the axis of upper locating sleeve, so as in phase
The positioning bar piece 152 of radial direction is formed between two adjacent escape groove.The upper surface of lower locating sleeve is then at corresponding positioning bar piece
The locating groove 431 extended axially downward, the inside and outside side wall of the lower locating sleeve of locating groove perforation, positioning bar piece are set
Lower end be plugged in corresponding locating groove.
When not having hydraulic pressure in working chamber, balance compression spring pushes the mobile substrate at reaction diaphragm center to move down, and stretches at this time
Radial extent is enclosed, the flex effect reaction diaphragm that undulatory expanding ring forms spring-like is in recessed dish type.Work as working chamber
It is interior when there is hydraulic pressure, you can the mobile substrate at reaction diaphragm center to be pushed to move up, at this time the similary radial extent of expanding ring, sense film
Piece is in convex back-off dish type.When the hydraulic pressure of working chamber changes, you can the mobile substrate of reaction diaphragm is moved up and down, from
And displacement sensor is driven to move up and down, displacement sensor can export an electric signal to controller at this time, and controller is connecing
Receiving then can correspondingly control the working condition of water pump after electric signal.
At work, high pressure water is entered by water inlet interface in working chamber Water pump pressure controller, and hydraulic pressure is to reaction diaphragm
The mobile substrate at center forms one and upwards pressure, and moves the balance compression spring on the upside of substrate at this time and then forms one to reaction diaphragm
A downward pressure, so as to which the mobile substrate of reaction diaphragm be made to keep equilibrium state.When the water pressure fluctuations in working chamber cause to feel
When the mobile substrate of diaphragm being answered to move up and down, lower locating sleeve can follow the mobile substrate of reaction diaphragm to move up and down, and on
The lower end of the positioning bar piece of locating sleeve is plugged on always in the corresponding locating groove of lower locating sleeve, at this time on displacement sensor
Bottom offset, so as to export an electric signal to controller.That is, Water pump pressure controller is at work, upper locating sleeve
Lower end and the upper end of lower locating sleeve overlap always, internal balance compression spring can be positioned effectively always,
Balance compression spring is avoided flexural deformation occur when flexible.It should be noted that we can make the internal diameter phase of upper and lower locating sleeve
Together, so as to avoid generating step in the lap-joint of upper locating sleeve lower end and lower locating sleeve upper end, it is effectively prevented from balance pressure
There is catching phenomenon when flexible in spring.
It is understood that we can reduce the thickness of expanding ring as possible, expanding ring during reducing reaction diaphragm deformation
Elastic resistance.As shown in fig. 6, we can also set 6-8 roots to stretch compression bar 6 in the upside of reaction diaphragm, the compression bar that stretches includes set
Bar 61 and the shank 62 being plugged in loop bar, one end of flexible compression bar are hinged at mobile substrate upper edge, and stretch compression bar
The other end be hinged on inside edge on the upside of retainer plate, and each flexible compression bar surrounds the equidistant row of mobile substrate in a ring
Row.When hydraulic pressure increase in working chamber, the mobile substrate of reaction diaphragm moves up, compression bar elongation of stretching at this time.When hydraulic pressure reduces,
Flexible compression bar shortens.Each flexible compression bar is sticked on expanding ring, a reliable support is formed to expanding ring, so as to effectively
Expanding ring upward bulging when avoiding working chamber with hydraulic pressure.That is, expanding ring is produced when only can be by mobile substrate
Pulling force, thus the hydraulic pressure acted on expanding ring can be avoided to cause additional influence to the elastic force of expanding ring.
In order to which positioning bar piece and locating groove is made to form more good cooperation, we can also be in the outside of lower locating sleeve
The reinforcing rib piece 432 of radially side extension, and locating groove two are set on wall at the both sides of the edge of locating groove
The reinforcing rib piece of side is mutually parallel, so as to which the gap between two reinforcing rib pieces be made to form the extension of locating groove.Certainly,
The madial wall of reinforcing rib piece should be connected with the madial wall smooth transition of locating groove.
As shown in Fig. 3, Fig. 6, we can also set in the mobile substrate upper surface of reaction diaphragm and seal bulge loop on a circle
211, bulge loop 212 is sealed under one circle of mobile substrate lower surface setting of reaction diaphragm, the then position of the screw via on reaction diaphragm
In in sealing bulge loop above and below.In this way, it is mounted in one when we will be compressed disk, reaction diaphragm and be accepted disc set with trip bolt
When rising, the upper sealing bulge loop of reaction diaphragm is closely against the lower surface for compressing disk, and the lower sealing bulge loop of reaction diaphragm is close
It reclines and accepts the upper surface of disk, so as to realize reaction diaphragm and compress between disk and reaction diaphragm and undertaking disk
Sealing, the water of working chamber is avoided to be penetrated into pressure chamber by sensing the screw via of disc centre.
In order to avoid water pump stop supply water when flow reverse refluence, we can be set in water inlet interface one can be upper and lower
Mobile spool 7 and resetting spring 8 on the upside of spool is compressed, spool upper end sets the magnetic circle 71 of circular ring shape, in working chamber
Electromagnet 9 is set with magnetic circle relative position, there are one non-return position and an operating positions so as to make spool tool.When water pump is opened
During beginning work, controller makes electromagnet obtain electric and generate suction, and the high pressure water of water inlet interface side pushes spool to overcome reset bullet
The elastic force of spring is moved upward to operating position, and the magnetic circle on spool is connect with electromagnet magnetic at this time, so as to stablize spool
Ground is located in operating position, mutual conduction between water inlet interface and water outlet mouthpiece, and water pump at this time can work normally water supply, and shape
Into stable flow.When the hydraulic pressure of water system is stirred in a certain range, since spool is attracted on electromagnet always,
Therefore, the water flow section formed between water inlet interface and water outlet mouthpiece remains unchanged, thus can keep the basicly stable of flow.When
When the hydraulic pressure of water system exceeds the rated value set, controller makes water pump be stopped, and the confession of tripping magnet simultaneously
Electricity, at this time resetting spring spool can be pushed promptly to be displaced downwardly to non-return position, by spool between water inlet interface and water outlet mouthpiece
It separates, the water in the pipeline of water outlet mouthpiece side can not inversely flow backwards back water pump by water inlet interface at this time.When water system
When hydraulic pressure is less than setting value, controller starts water pump, and electromagnet is made to obtain electric generation suction simultaneously, at this time the water at water inlet interface
Pressure can push spool to move to operating position on promptly, be connected between water inlet interface and water outlet mouthpiece, water system normally supplies
Water.
Further, spool of the invention is cylindrical, the capping 72 of setting closure opening at the upper end opening of spool, and
The opening of spool lower end is then connected with water inlet interface.In addition, magnetic circle is arranged on capping upside, and resetting spring then compresses capping
Upper side.Certainly, we can set positioning convex ring 73 in the upper side of capping, and reseting pressuring spring is located in positioning convex ring.Separately
Outside, one Inlet and outlet water intercommunicating pore 74 of setting is needed on spool on the side wall of water outlet mouthpiece side.When spool is in the work of upside
When making position, the magnetic circle of electromagnet absorption spool upper end, water outlet mouthpiece is just opposite with the Inlet and outlet water intercommunicating pore of spool at this time
Should, the flow flowed into from water inlet interface can be flowed out by the opening of spool lower end, Inlet and outlet water intercommunicating pore at water outlet mouthpiece.When
When spool is in the non-return position of downside, the Inlet and outlet water intercommunicating pore of spool is moved down to misplace with water outlet mouthpiece, and spool at this time will be into
Water interface and water outlet mouthpiece are spaced from each other, to prevent the reverse refluence of flow.
In order to ensure working chamber during work in housing is connected with water-in and water-out interface, we can set one in housing
A drainage guide groove 17, and opposite with Inlet and outlet water intercommunicating pore side on spool sets a hydraulic pressure delivery outlet 75, drains guide groove
Upper end connection working chamber.When spool is in the operating position of upside, drain the lower end of guide groove just with the hydraulic pressure on spool
Delivery outlet is connected.In this way, the high pressure water at water inlet interface can be led by the opening of spool lower end, hydraulic pressure delivery outlet, drainage
Slot is flowed into working chamber, and reaction diaphragm is made to keep balancing with the compression spring of upside under the action of hydraulic pressure.When spool is in downside
During non-return position, hydraulic pressure delivery outlet misplaces with drainage guide groove and mutually separates.
Finally, we can also set a locating convex block 721 radially extended at the edge of capping, and locating convex block limiting exists
It drains in guide groove, so as to which spool is avoided to generate rotation when moving up and down, it should be noted that the width of locating convex block should be with
The width of drainage guide groove is adapted, and the height of locating convex block（Radial dimension）It should be less than the depth of drainage guide groove.We can lead to
Rational design is crossed, so as to form certain gap between locating convex block and drainage guide groove.Thus it is possible, on the one hand, water pump starts work
When supplying water, the high pressure water at water inlet interface can be entered by draining guide groove in working chamber, it is ensured that diaphragm can be operated in normal shape
State.On the other hand, the fluctuation of the hydraulic pressure at water inlet interface can be well isolated from again, so as to which the hydraulic pressure in working chamber be avoided to follow
Hydraulic pressure at water inlet interface and frequent fluctuation are advantageously implemented the steady operation of water pump.
Claims (9)
1. a kind of Water pump pressure controller accurately controlled, including be made of pedestal and upper cover housing, be arranged in housing
Reaction diaphragm associated with displacement sensor, the housing are equipped with the water inlet interface connected with working chamber and water outlet mouthpiece,
It is characterized in that the upper cover madial wall, which corresponds to, is equipped with upper locating sleeve, the pedestal and upper cover in splicing punishment at reaction diaphragm
She You not crimp side, the reaction diaphragm include the mobile substrate of central circular, periphery retainer plate and be connected to mobile base
In expanding ring between piece and retainer plate, the mobile substrate and retainer plate are generally aligned in the same plane, the retainer plate is crimped on bottom
Between seat and the crimping side of upper cover, reaction diaphragm is separated out the working chamber of lower part and the pressure chamber on top in housing, described
The support substrate of hard is embedded in retainer plate and mobile substrate respectively, the expanding ring is in the axial cross section of reaction diaphragm
The zigzag of reciprocating and turning-back, the upper locating sleeve is interior to be equipped with balance compression spring, and the lower end for balancing compression spring compresses reaction diaphragm.
2. a kind of Water pump pressure controller accurately controlled according to claim 1, it is characterized in that, in reaction diaphragm
Upside is equipped with several flexible compression bars, and flexible compression bar includes loop bar and the shank being plugged in loop bar, and the one of the flexible compression bar
End is hinged on mobile substrate, and the other end of flexible compression bar is hinged on retainer plate, and it is in ring that each flexible compression bar, which surrounds mobile substrate,
Shape array.
3. a kind of Water pump pressure controller accurately controlled according to claim 1, it is characterized in that, in reaction diaphragm position
It is equipped in working chamber side and accepts disk, be equipped with installation casing at the center for accepting disk, institute's displacement sensors, which are embedded, is pacifying
In tubing, it is located at pressure chamber side equipped with disk is compressed in reaction diaphragm, connection is equipped at the center for compressing disk upper surface
Boss, connection boss are equipped with trip bolt, and the trip bolt is connected after passing through reaction diaphragm with accepting disk, described flat
The lower end of weighing apparatus compression spring is set on connection boss.
4. a kind of Water pump pressure controller accurately controlled according to claim 1, it is characterized in that, in water inlet interface
Equipped with moveable spool and compress the resetting spring of spool, the spool is equipped with magnetic circle, in the working chamber and magnetic
It inhales circle relative position and is equipped with electromagnet, the spool tool is there are one non-return position and an operating position, when spool is in non-return
During position, it is spaced from each other between water inlet interface and water outlet mouthpiece；When spool is in operating position, magnetic circle and electricity on spool
Magnet magnetic connects, mutual conduction between water inlet interface and water outlet mouthpiece.
5. a kind of Water pump pressure controller accurately controlled according to claim 4, it is characterized in that, the water inlet interface
Positioned at the lower end of housing, the water outlet mouthpiece is located at the side of housing and extends internally and is connected with water inlet interface, the spool
Cylindrical, the upper end of spool is equipped with capping, and the magnetic circle is located in capping, and the spool side wall is equipped with Inlet and outlet water intercommunicating pore
With hydraulic pressure delivery outlet, the housing is interior to be equipped with drainage guide groove, the upper end connection working chamber of guide groove is drained, when spool is in working position
When putting, the magnetic circle of electromagnet absorption spool upper end, water outlet mouthpiece is corresponding with the Inlet and outlet water intercommunicating pore of spool, the water on spool
Pressure delivery outlet is connected with draining the lower end of guide groove.
6. a kind of Water pump pressure controller accurately controlled according to claim 1, it is characterized in that, the reaction diaphragm
It is made of modified TPV.
7. a kind of Water pump pressure controller accurately controlled according to claim 1, it is characterized in that, on disk is compressed
Surface is equipped with the lower locating sleeve coaxial with upper locating sleeve, and the internal diameter of the upper and lower locating sleeve is identical, in upper locating sleeve
Lower face be equipped with several sector escape groove, escape groove around upper locating sleeve axis circular array, the avoidance
Slot is upwardly extended along the axis of upper locating sleeve, so as to form positioning bar piece, the lower positioning sleeve between adjacent escape groove
The upper surface of pipe corresponds to the locating groove for being equipped with and extending axially downward at positioning bar piece, and the lower end of the positioning bar piece is plugged on
In corresponding locating groove.
8. a kind of Water pump pressure controller accurately controlled according to claim 1, it is characterized in that, the lower positioning sleeve
The reinforcing rib piece that the lateral wall of pipe extends in the edge of locating groove equipped with radially side, and locating groove both sides
Reinforcing rib piece is mutually parallel.
9. a kind of Water pump pressure controller accurately controlled according to claim 1, it is characterized in that, the reaction diaphragm
Mobile substrate upper surface be equipped with and recline and compress the upper sealing bulge loop of disk, the mobile substrate lower surface of the reaction diaphragm is equipped with
It reclines and accepts the lower sealing bulge loop of disk.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024003.7A CN108252903B (en) | 2018-01-10 | 2018-01-10 | A kind of Water pump pressure controller accurately controlled |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024003.7A CN108252903B (en) | 2018-01-10 | 2018-01-10 | A kind of Water pump pressure controller accurately controlled |
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| CN108252903A true CN108252903A (en) | 2018-07-06 |
| CN108252903B CN108252903B (en) | 2019-05-31 |
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| CN201810024003.7A Active CN108252903B (en) | 2018-01-10 | 2018-01-10 | A kind of Water pump pressure controller accurately controlled |
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| JPH09196201A (en) * | 1996-01-22 | 1997-07-29 | Denso Corp | Exhaust gas circulation device |
| JP2008052381A (en) * | 2006-08-23 | 2008-03-06 | Shuichi Kobayashi | Pressure reducing valve for low flow rate and very low pressure |
| KR20080051503A (en) * | 2006-12-06 | 2008-06-11 | (주)썬텍그린 | Solenoid valve |
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| CN203239546U (en) * | 2013-05-13 | 2013-10-16 | 台州市耀达工贸有限公司 | Electron pressure switch |
| US20140261785A1 (en) * | 2013-03-14 | 2014-09-18 | Flomatic Corporation | Back pressure valve |
| CN206377008U (en) * | 2016-11-18 | 2017-08-04 | 浙江美罗机电有限公司 | A kind of improved water pump pressure control device |
| CN207813880U (en) * | 2018-01-10 | 2018-09-04 | 江苏环力科技发展股份有限公司 | It is a kind of to accurately control the Water pump pressure controller for starting pressure |
-
2018
- 2018-01-10 CN CN201810024003.7A patent/CN108252903B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09196201A (en) * | 1996-01-22 | 1997-07-29 | Denso Corp | Exhaust gas circulation device |
| JP2008052381A (en) * | 2006-08-23 | 2008-03-06 | Shuichi Kobayashi | Pressure reducing valve for low flow rate and very low pressure |
| KR20080051503A (en) * | 2006-12-06 | 2008-06-11 | (주)썬텍그린 | Solenoid valve |
| CN102505734A (en) * | 2011-09-30 | 2012-06-20 | 中国农业科学院农田灌溉研究所 | Secondary constant-pressure water supply system of high-rise building |
| US20140261785A1 (en) * | 2013-03-14 | 2014-09-18 | Flomatic Corporation | Back pressure valve |
| CN203239546U (en) * | 2013-05-13 | 2013-10-16 | 台州市耀达工贸有限公司 | Electron pressure switch |
| CN206377008U (en) * | 2016-11-18 | 2017-08-04 | 浙江美罗机电有限公司 | A kind of improved water pump pressure control device |
| CN207813880U (en) * | 2018-01-10 | 2018-09-04 | 江苏环力科技发展股份有限公司 | It is a kind of to accurately control the Water pump pressure controller for starting pressure |
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| Publication number | Publication date |
|---|---|
| CN108252903B (en) | 2019-05-31 |
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