CN204852539U - Static hand power device of solenoid valve - Google Patents

Abstract

The utility model discloses a static hand power device of solenoid valve, including the valve body, the valve body includes and fluid inlet and fluid issuing is equipped with the case part between fluid inlet and the fluid issuing, the main valve mouth used including intercommunication fluid inlet and fluid issuing of case part, be equipped with sealed diaphragm on the main valve mouth, be equipped with airtight atmospheric pressure chamber between sealed diaphragm and the valve body inner chamber, be equipped with the hand power valve on the valve body, the inner chamber one side of hand power valve with airtight atmospheric pressure chamber communicate with each other, on the other hand and fluid issuing communicate with each other, the advantage of this scheme lies in receiving opening and shutting of working condition restriction control flap, has avoided the problem of the unable work of solenoid valve under the outage circumstances.

Description

The static manual backup of a kind of solenoid valve

Technical field

The utility model relates to the static manual backup of a kind of solenoid valve, is mainly used in pipeline fluid transmission.

Background technique

In the robot control system(RCS) of fluid line, the general switch all controlling fluid by installing solenoid valve additional, and the most of valve used in present a lot of pipeline fluid is solenoid valve, and solenoid valve needs electric power to support, once after power-off, this valve just cannot normally work.

Model utility content

The utility model technical issues that need to address are, provide a kind of solenoid valve static manual backup, the folding of the form control valve that can pull by hand, avoid the problem that solenoid valve under powering-off state cannot work.

The technical solution of the utility model is: the static manual backup of a kind of solenoid valve, comprise valve body, valve body comprises fluid inlet and fluid output, spool part is provided with between fluid inlet and fluid output, described spool part comprises the primary valve of communication of fluid import and fluid output, primary valve is provided with seal membrane, airtight atmospheric pressure cavity is provided with between seal membrane and body cavity, valve body is provided with hand valve, the inner chamber of hand valve communicates with described airtight atmospheric pressure cavity on the one hand, communicates on the other hand with fluid output.

Preferably, described valve body comprises lower valve body and bonnet, and seal membrane, between lower valve body and bonnet, forms described airtight atmospheric pressure cavity, is provided with first passage between airtight atmospheric pressure cavity and the inner chamber of hand valve between seal membrane and bonnet inner chamber.

Preferably, be provided with 2 second channels between the inner chamber of described hand valve and fluid output, second channel runs through the inwall of bonnet and lower valve body successively.

Preferably, seal membrane be a rubber sheet gasket, rubber sheet gasket four corners are fixed between lower valve body and bonnet, and the intermediate portion of rubber sheet gasket covers on primary valve.

Preferably, described spool part is the spool cavity of up/down perforation, and primary valve is positioned at spool cavity top, spool part also comprises the secondary valve port of backflow, secondary valve port is positioned at the bottom of spool cavity, and secondary valve port communicates with fluid output on the one hand, directly extends outside valve body on the other hand.

Preferably, be provided with in the inner chamber of hand valve and pull valve rod, pull valve rod and be provided with hand valve Returnning spring, pull valve stem top and be connected with steel wire.

Preferably, described fluid inlet and fluid output level are located at the valve body left and right sides, described spool straightened portion and establishing, and the bottom surface of described body cavity is inclined-plane obliquely.

Preferably, secondary valve port is provided with telescopic auxiliary valve rod, and auxiliary valve rod is being provided with backflow sealing block towards one end, primary valve direction, and described backflow sealing block is provided with resetting-mechanism.

Preferably, described secondary valve port is provided with secondary valve port end face, secondary valve port end face is at least provided with 1 return port, and secondary valve port center is provided with the center hole passed for auxiliary valve rod, and described resetting-mechanism is be located at the lower Returnning spring between backflow sealing block and secondary valve port end face.

After adopting the technical program, valve body adds additional a hand valve, hand valve is the principle utilizing pull gas, air pressure in valve body is changed, and what primary valve in the utility model was arranged is the seal membrane of a slice flexibility, airtight atmospheric pressure cavity is had between seal membrane and body cavity, during hand valve pull gas, air pressure in sealing atmospheric pressure cavity changes, thus drive flexible seal membrane open or close primary valve, when primary valve is opened, fluid normally flows to fluid output from fluid input, when primary valve seals, fluid is blocked in primary valve, fluid output cannot be flow to, thus utilize the manual mode pulled to complete the working principle the same with solenoid valve, avoid the emergency situations that solenoid valve under powering-off state cannot work.

Accompanying drawing explanation

Accompanying drawing 1 is overall structure schematic diagram of the present utility model;

Accompanying drawing 2 is exploded perspective view of the present utility model;

Accompanying drawing 3 for of the present utility model analyse and observe be not intended to;

Accompanying drawing 4 is media flow schematic diagram when primary valve opens and closes;

Accompanying drawing 5 is schematic top plan view of the present utility model;

Accompanying drawing 6 is the structural representation of lower valve body;

Accompanying drawing 7 be in accompanying drawing 5 A to sectional view.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:

As shown in Figures 1 to 7, the static manual backup of a kind of solenoid valve, solenoid valve comprises valve body, valve body comprises fluid inlet 11 and fluid output 12, part between fluid inlet and fluid output is body cavity, fluid in the present embodiment is for water, spool part is provided with between fluid inlet and fluid output, described spool part comprises the secondary valve port 32 of the primary valve 31 into water and backflow, primary valve is provided with the seal membrane opening or closing primary valve, secondary valve port is provided with when opening with seal membrane closes secondary valve port automatically, the secondary valve sealing means of automatic open auxiliary valve port when closing with seal membrane, described seal membrane connects calutron, seal membrane can be driven to open when calutron energising or power-off or close primary valve, in valve body, the secondary valve port of an automatic back flow is added in this programme, primary valve is as the central core of circulation of communication of fluid import and fluid output, when the seal membrane on primary valve opens the circulation effect of primary valve, medium directly passes primary valve from fluid inlet, and directly flow to fluid output, and secondary valve port automatically can be closed under secondary valve sealing means effect, medium now can not be back to secondary valve port, when seal membrane closes primary valve, the automatic open auxiliary valve port of secondary valve sealing means now on secondary valve port, now medium can be back to secondary valve port from the pipeline of fluid outlet, and outside final exits valve body, thus ensure medium can not prolonged stay in the pipeline of fluid outlet, ensure that from fluid output flow out medium be up-to-date all the time.This is the working principle of solenoid valve in energising situation, the utility model is then extra adds manual backup on valve body, manual backup is a hand valve, airtight atmospheric pressure cavity 20 is provided with between seal membrane and body cavity in the present embodiment, the inner chamber of hand valve communicates with described airtight atmospheric pressure cavity 20 on the one hand, communicate with fluid output 12 on the other hand, concrete structure can see Fig. 7, described valve body comprises lower valve body 1 and bonnet 2, seal membrane is between lower valve body and bonnet, described airtight atmospheric pressure cavity is formed between seal membrane and bonnet inner chamber, first passage 201 is provided with between airtight atmospheric pressure cavity and the inner chamber of hand valve, 2 second channels 202 are provided with between the inner chamber of described hand valve and fluid output, second channel runs through the inwall of bonnet and lower valve body successively, when hand valve upwards pulls, air pressure in airtight atmospheric pressure cavity diminishes, when being less than hydrodynamic pressure, seal membrane is now due to the reason of draught head, can be separated with primary valve, even if be not separated, hydrodynamic pressure also can be washed seal membrane open and enter primary valve, water now directly flows to fluid output by primary valve, and when hand valve presses down, air pressure in sealing atmospheric pressure cavity becomes large, again fit with primary valve under the pressure of the air pressure up again of seal membrane now, the air pressure now sealing atmospheric pressure cavity is greater than hydrodynamic pressure, namely primary valve is closed, water now cannot pass through primary valve, second channel in the present embodiment is the built-in discharge channel of valve body, and the second channel in the present embodiment has two, symmetrically establish with the center of hand valve respectively, aperture can arrange a little bit smaller, the length of fluid output can be reduced.

Simultaneously, be provided with in the inner chamber of hand valve and pull valve rod 61, pull valve rod and be provided with hand valve Returnning spring, pull valve stem top and be connected with steel wire, hand valve Returnning spring does not indicate in the drawings, because its position can be change, can be located in hand valve inner chamber, also can be set between steel wire and hand valve outward, its Main Function be manual pull pull valve rod after can automatically reset.

In addition shown in composition graphs 3 and Fig. 4, described spool part is the spool cavity of up/down perforation, spool cavity in this example is the cylindrical body of a up/down perforation, primary valve 31 to be positioned at above spool cavity and with fluid inlet 11, fluid output 12 communicates, secondary valve port is positioned at below spool cavity, secondary valve port communicates with fluid output on the one hand, directly extend outside valve body on the other hand, described cylindrical body spool part is arranged in body cavity, after water enters from fluid inlet, the very first time rests in body cavity, described seal membrane is between primary valve and body cavity, when seal membrane is opened, water enters primary valve from body cavity, and finally flow out from fluid outlet, as preferably, described fluid inlet and fluid output level are located at the valve body left and right sides, described spool cavity is vertically established, the bottom surface of described valve core inner chamber is inclined-plane 13 obliquely, this inclined-plane mainly guides water to flow toward primary valve direction, when primary valve is opened, water can enter in primary valve fast, and also have a bit, when primary valve is closed, the water stayed in body cavity automatically returns in the pipeline of water under ramp effect, ensure that valve body does not have medium.

Electromagnetism plug 42 is provided with above seal membrane described in the present embodiment, electromagnetism plug outer cover has inductor coil 43, slug 44 is provided with above electromagnetism plug, during inductor coil energising, electromagnetism plug produces magnetic force, can be attracting with the slug of top, time attracting, electromagnetism plug rises automatically, thus drive seal membrane to be separated with primary valve, realize the function opening primary valve, when inductor coil power-off, electromagnetism plug falls under gravity automatically, again by primary valve hermetically closing, valve body described in the present embodiment comprises lower valve body 1 and bonnet 2, bonnet is provided with the plug inner chamber 21 of power supply magnetic core stick oscilaltion activity, described slug is positioned at plug inner chamber top, upper reset spring 22 is provided with between electromagnetism plug and seal membrane.Fluid inlet, fluid output, spool cavity are all located on lower valve body, seal membrane is preferably rubber sheet gasket, rubber sheet gasket four corners are fixed between lower valve body and bonnet, and the position of electromagnetism plug 42 is corresponding with the position of primary valve 31, and lower valve body and bonnet are fixed by four tapped holes on four corners, four corners of seal membrane are also provided with perforation, lower valve body, seal membrane, bonnet through this perforation, thus are fixed by 4 screws simultaneously, prevent its position to be moved.

Secondary valve sealing means described in the present embodiment comprises is located at telescopic auxiliary valve rod 51 on secondary valve port, the telescopic direction of auxiliary valve rod is the axial direction of spool cavity, auxiliary valve rod is being provided with the backflow sealing block 52 for sealing pair valve port towards one end, primary valve direction, described backflow sealing block is provided with resetting-mechanism, as preferably, described secondary valve port is provided with secondary valve port end face 321, backflow sealing block when pressing down and secondary valve port end face fit, realize the effect of sealing pair valve port, secondary valve port end face is at least provided with 1 return port, when the sealing block that refluxes does not press down, water can by outside return port exits valve body, secondary valve port center is provided with the center hole passed for auxiliary valve rod, described resetting-mechanism is be located at the lower Returnning spring 53 between backflow sealing block and secondary valve port end face.

Concrete automatic back flow working principle is as follows:

During original state, seal membrane and primary valve are fitted, primary valve is now in closed condition, primary valve cannot be passed through when water is come in, when inductor coil is energized, electromagnetism plug produces magnetic force, now electromagnetism plug rises attracting with the slug of top automatically, seal membrane intermediate portion is driven upwards to arch upward when electromagnetism plug rises, primary valve is now opened, water flows directly into from primary valve, backflow sealing block now is automatically pressed down under the flowing pressure of water, thus secondary valve port is closed, now water directly flows out from fluid outlet, this process is normal water flowing, concrete schematic diagram is the glide path of Fig. 4 hollow arrow indication.

When after inductor coil power-off, the magnetic force of electromagnetism plug disappears, and now electromagnetism plug falls automatically due to self gravitation reason from plug inner chamber, is again closed by primary valve, now the hydraulic pressure refluxed on sealing block alleviates gradually, until disappear, by means of the effect of lower Returnning spring, backflow sealing block rises automatically, secondary valve port is now opened automatically, under the effect of pressure difference, the water being originally trapped in fluid outlet place can be back to secondary valve port, thus the most at last outside this part water exits valve body.

Certainly hand valve is utilized also can to complete reflowing result described above.

Below only with regard to the utility model preferably example be described, but can not be interpreted as it is limitations on claims.The utility model not only limits to and above example, its concrete structure allows to change, those skilled in the art can make various change and distortion according to the utility model, only otherwise depart from spirit of the present utility model, all should belong to the scope that the utility model claims define.

Claims (9)

1. the static manual backup of solenoid valve, comprise valve body, valve body comprises fluid inlet (11) and fluid output (12), spool part is provided with between fluid inlet and fluid output, it is characterized in that: described spool part comprises the primary valve (31) of communication of fluid import and fluid output, primary valve is provided with seal membrane (41), airtight atmospheric pressure cavity (20) is provided with between seal membrane and body cavity, valve body is provided with hand valve (6), the inner chamber of hand valve communicates with described airtight atmospheric pressure cavity (20) on the one hand, communicate with fluid output (12) on the other hand.

2. the static manual backup of a kind of solenoid valve according to claim 1, it is characterized in that: described valve body comprises lower valve body (1) and bonnet (2), seal membrane is between lower valve body and bonnet, form described airtight atmospheric pressure cavity between seal membrane and bonnet inner chamber, between airtight atmospheric pressure cavity and the inner chamber of hand valve, be provided with first passage (201).

3. the static manual backup of a kind of solenoid valve according to claim 2, it is characterized in that: be provided with 2 second channels (202) between the inner chamber of described hand valve and fluid output, each second channel runs through the inwall of bonnet and lower valve body successively.

4. the static manual backup of a kind of solenoid valve according to claim 2, it is characterized in that: described seal membrane (41) is a rubber sheet gasket, rubber sheet gasket four corners are fixed between lower valve body and bonnet, and the intermediate portion of rubber sheet gasket covers on primary valve.

5. the static manual backup of a kind of solenoid valve according to claim 1, is characterized in that: be provided with in the inner chamber of hand valve and pull valve rod (61), pulls valve rod and be provided with hand valve Returnning spring, pull valve stem top and be connected with steel wire.

6. the static manual backup of a kind of solenoid valve according to claim 1, it is characterized in that: described spool part is the spool cavity of up/down perforation, primary valve (31) is positioned at spool cavity top, spool part also comprises the secondary valve port (32) of backflow, secondary valve port is positioned at the bottom of spool cavity, secondary valve port communicates with fluid output on the one hand, directly extends outside valve body on the other hand.

7. the static manual backup of a kind of solenoid valve according to claim 6, it is characterized in that: described fluid inlet and fluid output level are located at the valve body left and right sides, described spool cavity is vertically established, and the bottom surface of body cavity is inclined-plane (13) obliquely.

8. the static manual backup of a kind of solenoid valve according to claim 6, it is characterized in that: secondary valve port is provided with telescopic auxiliary valve rod (51), auxiliary valve rod is being provided with backflow sealing block (52) towards one end, primary valve direction, described backflow sealing block is provided with resetting-mechanism.

9. the static manual backup of a kind of solenoid valve according to claim 8, it is characterized in that: described secondary valve port is provided with secondary valve port end face (321), secondary valve port end face is at least provided with 1 return port, secondary valve port center is provided with the center hole passed for auxiliary valve rod, and described resetting-mechanism is be located at the lower Returnning spring (53) between backflow sealing block and secondary valve port end face.