CN204162918U - A kind of Self-resetting volume control device - Google Patents
A kind of Self-resetting volume control device Download PDFInfo
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- CN204162918U CN204162918U CN201420526799.3U CN201420526799U CN204162918U CN 204162918 U CN204162918 U CN 204162918U CN 201420526799 U CN201420526799 U CN 201420526799U CN 204162918 U CN204162918 U CN 204162918U
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Abstract
A kind of Self-resetting volume control device, primarily of the jet mixer of Venturi tube structure, hydraulic control valve and pneumatic control valve composition.Have in jet mixer during water flow and produce negative pressure in vacuum noz(zle) and imbibition nozzle, at this moment press the button, make pore and outlet nozzle and bypass channel conducting, negative pressure maintains above-mentioned conducting state, and air pressure bag is upwards shunk mention needle-valve, washing agent is flow in jet mixer by the space between needle-valve and needle seating and is mixed into the suitable liquid detergent of concentration with water and flows into wash bucket content.
Description
Technical field
The utility model relates to a kind of fill phase for needing to add washing agent at washing machine, adds the Self-resetting volume control device that washing agent forms the suitable liquid detergent of concentration constantly, belong to the washing agent input technology of washing machine in the process of water inlet.
Background technology
The principle of washing clothes: no matter adopt machine washing or hand washing, desirable way first makes suitable, the uniform cleaning solution of concentration, then the clothing input will washing sub-mechanics stirs evenly, by the immersion of cleaning solution, the tension force of washing agent is used dirt and clothing to be separated, could wash clean clothing.
The laundering process correct with washing machine should be: first start discharges water, and water is put input washing agent enough afterwards and fully mixed with water, then drops into laundry soaMng washing.
But need the time owing to discharging water, people be in order to save trouble, and direct wash bucket clothing being dropped into washing machine, drops into a certain amount of washing agent by rule of thumb usually, then start water inlet and wash clothes.Owing to not being that the cleaning solution carrying out even concentration in advance puts laundry soaMng again, after causing clothing to inhale full water, go between the fiber that washing agent is just difficult to be dissolved into clothing, so usually there is the situation of washing clean not, and, owing to contacting the long period with the washing agent of high concentration, even there is the phenomenon of decolouring in part clothing.
Although some has the washing machine of putting detergent function, be in water inlet process, the washing agent of not diluted is directly thrown in into wash bucket, easily damage clothing.Be disclose washing powder of washing machine automatic adding device in the patent of 200820034740.7 at application number, advantage is can automatic washing-powder feeding, and overcoming the problem of washing powder caking blocking, deficiency directly washing powder is dropped into wash bucket, easily damages clothing.
Totally-enclosed during the work of part automatic washing machine, if cleaning solution will be carried out throw in clothing again with regard to inconvenience very.
Be disclose a kind of washing agent for washing machine and automatic disinfectant adding device in the patent of 201010179091.1 at application number, advantage has accomplished to control relatively accurately, shortcoming is washing agent is in water inlet process, adopt interim input, what still can not accomplish to enter wash bucket is all the cleaning solution of even concentration, and complicated structure.
Be disclose a kind of washing agent in the patent document of 201110120512.8 to throw in and mixing arrangement in the patent No., the discharging gate of a duckbill has been settled in the discharging opening of charging basket, under the effect of motor, washing agent is got into turbine stirrer to mix with water, advantage to blend uniform cleaning solution, deficiency is that discharging gate long rear elasticity service time of duckbill can weaken, when causing motor not work, washing agent also may enter turbine stirrer by automatic safety.
Therefore, need to find a kind of fill phase needing to add washing agent at washing machine, in the process of water inlet, add washing agent constantly form the suitable liquid detergent of concentration, at the device that other does not need the fill phase of adding washing agent to stop washing agent throwing in completely.
Summary of the invention
The purpose of this utility model is to provide a kind of fill phase needing to add washing agent at washing machine, in the process of water inlet, add washing agent constantly form the suitable liquid detergent of concentration, at the device that other does not need the fill phase of adding washing agent to stop washing agent throwing in completely.
The technical solution of the utility model is: a kind of Self-resetting volume control device, forms primarily of the jet mixer 1 of Venturi tube structure, hydraulic control valve 2 and pneumatic control valve 3; The narrow positions of jet mixer 1 be provided with outwardly with the jet mixer imbibition nozzle 11 that is communicated with of inside and vacuum noz(zle) 12; Described imbibition nozzle is connected with the liquid outlet of hydraulic control valve by liquid line, described vacuum noz(zle) is connected with the outlet nozzle of pneumatic control valve by tracheae, the inlet end of pneumatic control valve and the outlet side of hydraulic control valve are threaded connection, and hydraulic control valve is connected with detergent container; Pneumatic control valve has opening and closing two kinds of duties, when there being water flow in jet mixer, press pneumatic control valve, when pneumatic control valve is in open mode, the negative pressure that in jet mixer, water flow produces makes pneumatic control valve stay open state, negative pressure is delivered to hydraulic control valve by vacuum noz(zle), pneumatic control valve, and hydraulic control valve is opened, and washing agent is entered in jet mixer by hydraulic control valve and mixes with water; When the water in jet mixer stops flowing, the negative pressure in vacuum noz(zle) disappears, and pneumatic control valve resets and is in closed condition, and hydraulic control valve also cuts out thereupon.
Described hydraulic control valve 2 forms primarily of hydraulic control valve seat 21, needle-valve 22, air pressure bag 23, hydraulic spring grease cup 24, pivot pin 25 and hydraulic sealing ring 26; Described hydraulic control valve seat 21 is the T-shaped pipe with three ports of hollow, port is down the liquid inlet port 211 be connected with detergent container, the port of side is the liquid outlet 212 be communicated with imbibition nozzle 11, port is upward the mutual conducting of through hole that Connection Block 213, three ports be threaded with the inlet end of pneumatic control valve pass through in hydraulic control valve seat; Coaxially, the axis of liquid outlet is vertical with the axis of Connection Block with liquid inlet port for described liquid inlet port 211 and Connection Block 213; The inlet end of Connection Block and pneumatic control valve is screwed together the adjustment space of a rear formation hollow; Described air pressure bag is the cylindrical structural of upper opening hollow, openend is towards the inlet end of pneumatic control valve, at air pressure bag away from the end face of pneumatic control valve being provided with to the raised holder in liquid inlet port direction, the holder of air pressure bag inserts in the through hole of Connection Block bottom wall central downwards; The cylindrical outer wall of air pressure bag is provided with the fold that can stretch under the effect of external force, and air pressure bag is placed in by the mode that its axis and Connection Block are coaxial and regulates in space; Hydraulic spring grease cup is placed in air pressure bag by the mode coaxial with air pressure bag; Needle-valve forms by one section of cylinder with the cone of a cylindrical end face for the cone end, holder is inserted on the top of needle-valve barrel portion, then holder and needle-valve is locked together by pivot pin 25; The bead 214 to inner process is provided with in hydraulic control valve seat through-hole between liquid outlet and adjustment space, needle-valve can be moved along the axis of bead under the effect of external force, the wall of bead towards its axis is provided with seal groove 215, hydraulic sealing ring 26 is placed in seal groove; Be provided with the needle seating 216 to inner process in liquid inlet port endoporus below liquid outlet, needle seating is passed from bead 214 to the direction of liquid inlet port again through after hydraulic sealing ring in the tip of needle-valve, and the endoporus of needle seating blocks by needle-valve completely; Needle-valve upwards can be mentioned under the effect of external force to be made to produce space between needle seating and needle-valve or move down to be blocked completely by needle seating.
Described pneumatic control valve 3 forms primarily of pneumatic control valve seat 31, gas spring 32, piston head 33, piston rod 34, stop bit lid 35, button 36 and fixed screw 37, described pneumatic control valve seat 31 is the hollow cylindrical of upper opening, one piece of demarcation strip 311 is provided with in the bottom of pneumatic control valve seat endoporus, the pore space of pneumatic control seat valve is divided into the gas control space being positioned at top and the connection space being positioned at below, the connection space of pneumatic control valve is threaded connection with the Connection Block of hydraulic control valve or bayonet socket is connected or be socketed, described demarcation strip 311 is provided with the connecting hole 312 being communicated with connection space and gas control space, in gas control space, the sidewall of pneumatic control valve seat is provided with outlet nozzle 313 outwardly, and outlet nozzle is connected with vacuum noz(zle) 12 by tracheae, the sidewall of pneumatic control valve seat is also provided with a bypass body outwardly, and in bypass body, be provided with bypass channel 314, the port of export of bypass channel is coaxial with outlet nozzle, and the entrance point of bypass channel is near demarcation strip, gas spring is placed on the demarcation strip in gas control space, arranges a locating slot 315 downwards from the top edge of pneumatic control valve seat along the inwall of pneumatic control valve seat, central shaft along stop bit lid 35 is provided with the centre bore that aperture is more than or equal to diameter of piston rod, along stop bit lid bottom wall edge, the stop bit bead to lower process is set, stop bit bead forms negative and positive with the endoporus of pneumatic control valve seat and coordinates, and the external diameter of stop bit lid is greater than the diameter of bore of pneumatic control valve seat, the top of piston head is fixed on the diapire of piston boit, at the sidewall setting positioning key 38 outwardly of piston head near piston boit, when piston head is moved up and down in gas control space, positioning key 38 to insert in locating slot 315 and moves up and down along locating slot, prevent piston head from rotating, and the amplitude that limited piston head moves up and down, the top of piston boit is passed the centre bore of stop bit lid from stop bit bead one end of stop bit lid, by fixed screw, button is fixed on piston boit top again, the end of piston head is inserted pneumatic control valve seat downwards, positioning key is made to enter in locating slot, stop bit lid is screwed on the internal thread of pneumatic control valve seat top entry by the external thread rotary being located at stop bit bead outer wall, stop bit lid is made to be fixed on pneumatic control valve seat top, the end of piston head props up gas spring, piston head outer wall below positioning key is provided with the through pore in the left and right vertical with the axis of piston head 36, pressing button makes piston head move down, when the lower surface of positioning key props up the diapire of locating slot, piston head can not move down again, at this moment, pore is communicated with the outlet side of bypass channel with outlet nozzle, when not pressing the button, pore is positioned at above the outlet side of outlet nozzle and bypass channel, is not communicated with the outlet side of bypass channel with outlet nozzle, the diameter of gas spring is less than the diameter of piston head, outer wall below Connection Block external screw thread is provided with more than one airflow hole, and described airflow hole is communicated with the space between Connection Block with air pressure bag, form tight fit between the outer wall of described piston head and the endoporus of pneumatic control valve seat, piston head can move up and down along pneumatic control valve seat endoporus axis under the effect of external force.
Piston head outer wall above pore is provided with upper piston groove, upper sealing ring is placed in upper piston groove, piston head outer wall below pore set gradually parallel with upper seal groove in seal groove and lower seal groove cavity, middle sealing ring is placed in middle seal groove, and lower seal is placed in lower seal groove cavity.
When not pressing lower piston, the pore of described piston head, upper sealing ring and middle sealing ring are all positioned at above the endoporus of outlet nozzle and the outlet side of bypass channel, and lower seal is positioned at below the outlet side of outlet nozzle and bypass channel; When pressing lower piston, described upper sealing ring is positioned at above the outlet side of outlet nozzle and bypass channel, and middle sealing ring is positioned at below the outlet side of outlet nozzle and bypass channel, and lower seal is positioned at above the inlet end of bypass channel; Pore is connected with the outlet side of bypass channel with outlet nozzle.
In the jet mixer between the narrow positions and the port of export of described jet mixer, block water plate is set, water hole is left between block water plate and the inwall of jet mixer, described block water plate is taper, the vertex of a cone is towards the narrow positions of jet mixer, be provided with projection at block water plate towards the outer wall of water inlet end, washing agent and water be mixed to get more even.
Beneficial effect:
1, have in jet mixer during water flow and produce negative pressure in vacuum noz(zle) and imbibition nozzle, at this moment press the button, make pore and outlet nozzle and bypass channel conducting, negative pressure maintains above-mentioned conducting state, and air pressure bag is upwards shunk mention needle-valve, washing agent is flow in jet mixer by the space between needle-valve and needle seating and is mixed into the suitable liquid detergent of concentration with water and flows into wash bucket content.
Accompanying drawing explanation
Fig. 1 is agent structure schematic diagram of the present utility model;
Fig. 2 is the partial cutaway schematic that hydraulic control valve of the present utility model and pneumatic control valve are in closed condition;
Fig. 3 is the figure that pops of hydraulic control valve of the present utility model and pneumatic control valve;
Fig. 4 is the partial cutaway schematic that hydraulic control valve of the present utility model and pneumatic control valve are in open mode;
Fig. 5 is the generalized section of pneumatic control valve seat of the present utility model;
Fig. 6 is the generalized section of hydraulic control valve seat of the present utility model.
Detailed description of the invention
As shown in Fig. 1 to Fig. 4, a kind of Self-resetting volume control device, forms primarily of the jet mixer 1 of Venturi tube structure, hydraulic control valve 2 and pneumatic control valve 3.
The narrow positions of jet mixer 1 be provided with outwardly with the jet mixer imbibition nozzle 11 that is communicated with of inside and vacuum noz(zle) 12; Described imbibition nozzle is connected with the liquid outlet of hydraulic control valve by liquid line, described vacuum noz(zle) is connected with the outlet nozzle of pneumatic control valve by tracheae, the inlet end of pneumatic control valve and the outlet side of hydraulic control valve are threaded connection, and hydraulic control valve is connected with detergent container.
A kind of Self-resetting volume control device, the negative pressure variation produced when utilizing jet mixer to work makes pneumatic control valve and hydraulic control valve be in open mode, the size of negative pressure determines the amplitude opened, and when negative pressure disappears, pneumatic control valve and hydraulic control valve are returned to closed condition.Namely pneumatic control valve and hydraulic control valve have two kinds of duties, and one is that both are in closed condition simultaneously, and one is that both are in open mode simultaneously, and original state is closed condition.
When washing machine is in the fill phase needing to add washing agent, after pressing pneumatic control valve, pneumatic control valve is in open mode, due to the effect of negative pressure, pneumatic control valve can continue to stay open state in fill phase, meanwhile, negative pressure can be delivered to hydraulic control valve, make hydraulic control valve also be in open mode, washing agent is entered in jet mixer by hydraulic control valve and mixes with water; When the water in jet mixer stops flowing, the negative pressure in vacuum noz(zle) disappears, and pneumatic control valve resets and is in closed condition, and hydraulic control valve also cuts out thereupon.
Described hydraulic control valve 2 forms primarily of hydraulic control valve seat 21, needle-valve 22, air pressure bag 23, hydraulic spring grease cup 24, pivot pin 25 and hydraulic sealing ring 26.
As shown in Figure 6, described hydraulic control valve seat 21 is the T-shaped pipe with three ports of hollow, port is down the liquid inlet port 211 be connected with detergent container, the port of side is the liquid outlet 212 be communicated with imbibition nozzle 11, port is upward the mutual conducting of through hole that Connection Block 213, three ports be threaded with the inlet end of pneumatic control valve pass through in hydraulic control valve seat; Coaxially, the axis of liquid outlet is vertical with the axis of Connection Block with liquid inlet port for described liquid inlet port 211 and Connection Block 213.
The inlet end of Connection Block and pneumatic control valve is screwed together the adjustment space of a rear formation hollow; Described air pressure bag is the cylindrical structural of upper opening hollow, openend is towards the inlet end of pneumatic control valve, at air pressure bag away from the end face of pneumatic control valve being provided with to the raised holder in liquid inlet port direction, the holder of air pressure bag inserts downwards in the through hole of Connection Block bottom wall central.
The cylindrical outer wall of air pressure bag is provided with the fold that can stretch under the effect of external force, and air pressure bag is placed in by the mode that its axis and Connection Block are coaxial and regulates in space; Hydraulic spring grease cup is placed in air pressure bag by the mode coaxial with air pressure bag.The edge of air pressure bag upper opening compresses the inlet end of pneumatic control valve, below holder inserts in the through hole of Connection Block bottom wall central, make air pressure bag form a top to be connected with pneumatic control valve the relatively independent space that is communicated with the endoporus of hydraulic control valve seat, below, between the sidewall and the inwall in adjustment space of air pressure bag, form space.
Needle-valve forms by one section of cylinder with the cone of a cylindrical end face for the cone end, holder is inserted on the top of needle-valve barrel portion, then holder and needle-valve is locked together by pivot pin 25; The bead 214 to inner process is provided with in hydraulic control valve seat through-hole between liquid outlet and adjustment space, needle-valve can be moved along the axis of bead under the effect of external force, the wall of bead towards its axis is provided with seal groove 215, hydraulic sealing ring 26 is placed in seal groove, hydraulic sealing ring part is outwardly fixed in seal groove, and part is inwardly given prominence to outside bead.Be provided with the needle seating 216 to inner process in liquid inlet port endoporus below liquid outlet, needle seating is passed from bead 214 to the direction of liquid inlet port again through after hydraulic sealing ring in the tip of needle-valve, and the endoporus of needle seating blocks by needle-valve completely; Needle-valve upwards can be mentioned under the effect of external force to be made to produce space between needle seating and needle-valve or move down to be blocked completely by needle seating.
Needle-valve is upwards mentioned higher, and the space between needle-valve and needle seating is larger, the amplitude that needle-valve is upwards mentioned, and depends on the size of the negative pressure produced in vacuum noz(zle).No matter needle-valve is in any state, be in hydraulic sealing ring is all the barrel portion of needle-valve, hydraulic sealing ring makes the passage below it and the passage above it be cut off, thus the negative pressure produced in vacuum noz(zle) can be delivered in air pressure bag, be cut off down to during hydraulic sealing ring, air pressure bag is upwards compressed thus needle-valve can be inhaled to move up and open the passage of the flowing of washing agent in hydraulic control valve, washing agent is also because being subject to the obstruct of hydraulic sealing ring, thus can not upwards flow into air pressure bag, liquid outlet can only be flowed into side.
As shown in Figure 5, described pneumatic control valve 3 forms primarily of pneumatic control valve seat 31, gas spring 32, piston head 33, piston rod 34, stop bit lid 35, button 36 and fixed screw 37.Knob is used in the fill phase needing to add washing agent, the manually downward gas channel conducting by making piston head move down to make in pneumatic control valve, thus enable negative pressure be smoothly through pneumatic control valve to open hydraulic control valve, washing agent successfully could be sucked in jet mixer by the negative pressure in imbibition nozzle and mix with water.
Described pneumatic control valve seat 31 is the hollow cylindrical of upper opening, one piece of demarcation strip 311 is provided with in the bottom of pneumatic control valve seat endoporus, the pore space of pneumatic control seat valve is divided into the gas control space being positioned at top and the connection space being positioned at below, the connection space of pneumatic control valve is threaded connection with the Connection Block of hydraulic control valve or bayonet socket is connected or be socketed.In the application of reality, be preferably provided with the external screw thread matched with the internal thread on the Connection Block of hydraulic control valve at the inwall of connection space.
Described demarcation strip 311 is provided with the connecting hole 312 being communicated with connection space and gas control space; In gas control space, the sidewall of pneumatic control valve seat is provided with outlet nozzle 313 outwardly, and outlet nozzle is connected with vacuum noz(zle) 12 by tracheae; The sidewall of pneumatic control valve seat is also provided with a bypass body outwardly, and in bypass body, be provided with bypass channel 314, the port of export of bypass channel is coaxial with outlet nozzle, and the entrance point of bypass channel is near demarcation strip.
Gas spring is placed on the demarcation strip in gas control space, arranges a locating slot 315 downwards from the top edge of pneumatic control valve seat along the inwall of pneumatic control valve seat; Central shaft along stop bit lid 35 is provided with the centre bore that aperture is more than or equal to diameter of piston rod, along stop bit lid bottom wall edge, the stop bit bead to lower process is set, stop bit bead forms negative and positive with the endoporus of pneumatic control valve seat and coordinates, and the external diameter of stop bit lid is greater than the diameter of bore of pneumatic control valve seat.
The top of piston head is fixed on the diapire of piston boit, at the sidewall setting positioning key 38 outwardly of piston head near piston boit, when piston head is moved up and down in gas control space, positioning key 38 to insert in locating slot 315 and moves up and down along locating slot, prevent piston head from rotating, and the amplitude that limited piston head moves up and down.
The top of piston boit is passed the centre bore of stop bit lid from stop bit bead one end of stop bit lid, by fixed screw, button is fixed on piston boit top again, the end of piston head is inserted pneumatic control valve seat downwards, positioning key is made to enter in locating slot, stop bit lid is screwed on the internal thread of pneumatic control valve seat top entry by the external thread rotary being located at stop bit bead outer wall, stop bit lid is made to be fixed on pneumatic control valve seat top, when piston head moves up, just can not move up again when the top of piston head arrives to stop bit lid, thus stop bit lid limits the amplitude that piston head moves up.
The end of piston head props up gas spring, piston head outer wall below positioning key is provided with the through pore in the left and right vertical with the axis of piston head 36, pressing button makes piston head move down, when the lower surface of positioning key props up the diapire of locating slot, piston head can not move down again, at this moment, pore is communicated with the outlet side of bypass channel with outlet nozzle; Air pressure in vacuum noz(zle) just can arrive bypass channel by pore, then is entered in air pressure bag by the connecting hole that the gap of gas spring is passed down through on demarcation strip, makes air pressure bag upwards shrink the dynamic needle-valve of suction and moves up.
When not pressing the button, pore is positioned at above the outlet side of outlet nozzle and bypass channel, is not communicated with the outlet side of bypass channel with outlet nozzle; The diameter of gas spring is less than the diameter of piston head; Outer wall below Connection Block external screw thread is provided with more than one airflow hole, and described airflow hole is communicated with the space between Connection Block with air pressure bag; Form tight fit between the outer wall of described piston head and the endoporus of pneumatic control valve seat, piston head can move up and down along pneumatic control valve seat endoporus axis under the effect of external force.
Piston head outer wall above pore is provided with upper piston groove, upper sealing ring is placed in upper piston groove, piston head outer wall below pore set gradually parallel with upper seal groove in seal groove and lower seal groove cavity, middle sealing ring is placed in middle seal groove, and lower seal is placed in lower seal groove cavity.
When not pressing lower piston, the pore of described piston head, upper sealing ring and middle sealing ring are all positioned at above the outlet side of outlet nozzle and bypass channel, pore is not communicated with outlet nozzle, and outlet nozzle is not also communicated with bypass channel, and lower seal is positioned at below the outlet side of outlet nozzle and bypass channel.
No matter whether pore is connected with bypass channel, and bypass channel and air pressure bag are in connected state all the time by the connecting hole on demarcation strip.
When pressing lower piston, described upper sealing ring is positioned at above the outlet side of outlet nozzle and bypass channel, and middle sealing ring is positioned at below the outlet side of outlet nozzle and bypass channel, and lower seal is positioned at above the inlet end of bypass channel; Pore is connected with the outlet side of bypass channel with outlet nozzle.
In the jet mixer between the narrow positions and the port of export of described jet mixer, block water plate is set, water hole is left between block water plate and the inwall of jet mixer, described block water plate is taper, the vertex of a cone is towards the narrow positions of jet mixer, be provided with projection at block water plate towards the outer wall of water inlet end, washing agent and water be mixed to get more even.
During use, start washing machine, when washing machine starts to intake, water flows and makes to produce negative pressure in vacuum noz(zle) and imbibition nozzle in jet mixer, this is, by lower piston, piston compresses gas spring, pore on piston head is connected with vacuum noz(zle) with the outlet side of bypass channel with the outlet nozzle of pneumatic control valve seat, pneumatic control valve seat is made to be in negative pressure state, thus overcome the pressure of gas spring, make the invariant position of piston head, continue to keep pore to be communicated with vacuum noz(zle), negative pressure in vacuum noz(zle) is delivered in air pressure bag by pneumatic control valve again, make the fold of air pressure bag shrink the pressure overcoming hydraulic spring grease cup needle-valve is upwards mentioned, make to produce space between needle-valve and needle seating, imbibition nozzle is communicated with liquid inlet port, make to produce negative pressure in liquid inlet port, washing agent in the detergent container be connected with liquid inlet port enters liquid outlet by liquid inlet port and the space between needle-valve and needle seating, then the Outlet-side flow to jet mixer together with water in jet mixer is entered by imbibition nozzle, impinge upon on block water plate and form the comparatively uniform liquid detergent of concentration.When this has been intake, water is not had when flowing in jet mixer, negative pressure in vacuum noz(zle) and imbibition nozzle all disappears, gas spring resets, and by piston head upwards jack-up, the outlet side of pore and outlet nozzle and bypass channel disconnects, accordingly, hydraulic spring grease cup also resets, and makes it block needle seating needle-valve to pressing down, and washing agent stops entering in jet mixer.When washing machine is intake again, although still create air pressure in vacuum noz(zle) and imbibition nozzle, but because piston head upwards resets, the outlet nozzle of pore and pneumatic control valve seat and the outlet side of bypass channel are disconnected, thus negative pressure can not be passed to hydraulic control valve, thus also just washing agent can not be added.
In the use of reality, the amount of the clothes that user can wash as required selects inflow, the height of adjustable pressure bag is carried out again according to the position of inflow regulator solution pressure control valve on pneumatic control valve, thus regulate the prestressing force being placed in hydraulic spring grease cup in air pressure bag, thus determine to need great strength could inhale and move washing agent to be inhaled into needle-valve jet mixer is interior to mix with water.
Above-described embodiment is only used to interpretation purposes of the present utility model; and be not to restriction of the present utility model, those skilled in the art, in essential scope of the present utility model; make a variety of changes or substitute, also should belong to protection category of the present utility model.
Claims (6)
1. a Self-resetting volume control device, is characterized in that: primarily of the jet mixer (1) of Venturi tube structure, hydraulic control valve (2) and pneumatic control valve (3) composition; The narrow positions of jet mixer (1) be provided with outwardly with the jet mixer imbibition nozzle (11) that is communicated with of inside and vacuum noz(zle) (12); Described imbibition nozzle is connected with the liquid outlet of hydraulic control valve by liquid line, described vacuum noz(zle) is connected with the outlet nozzle of pneumatic control valve by tracheae, the inlet end of pneumatic control valve and the outlet side of hydraulic control valve are threaded connection, and hydraulic control valve is connected with detergent container; Pneumatic control valve has opening and closing two kinds of duties, when there being water flow in jet mixer, press pneumatic control valve, when pneumatic control valve is in open mode, the negative pressure that in jet mixer, water flow produces makes pneumatic control valve stay open state, negative pressure is delivered to hydraulic control valve by vacuum noz(zle), pneumatic control valve, and hydraulic control valve is opened, and washing agent is entered in jet mixer by hydraulic control valve and mixes with water; When the water in jet mixer stops flowing, the negative pressure in vacuum noz(zle) disappears, and pneumatic control valve resets and is in closed condition, and hydraulic control valve also cuts out thereupon.
2. Self-resetting volume control device according to claim 1, is characterized in that: described hydraulic control valve (2) forms primarily of hydraulic control valve seat (21), needle-valve (22), air pressure bag (23), hydraulic spring grease cup (24), pivot pin (25) and hydraulic sealing ring (26); The T-shaped pipe with three ports that described hydraulic control valve seat (21) is hollow, port is down the liquid inlet port (211) be connected with detergent container, the port of side is the liquid outlet (212) be communicated with imbibition nozzle (11), port is upward the Connection Block (213) be threaded with the inlet end of pneumatic control valve, and three ports are by the mutual conducting of through hole in hydraulic control valve seat; Coaxially, the axis of liquid outlet is vertical with the axis of Connection Block with liquid inlet port for described liquid inlet port (211) and Connection Block (213); The inlet end of Connection Block and pneumatic control valve is screwed together the adjustment space of a rear formation hollow; Described air pressure bag is the cylindrical structural of upper opening hollow, openend is towards the inlet end of pneumatic control valve, at air pressure bag away from the end face of pneumatic control valve being provided with to the raised holder in liquid inlet port direction, the holder of air pressure bag inserts in the through hole of Connection Block bottom wall central downwards; The cylindrical outer wall of air pressure bag is provided with the fold that can stretch under the effect of external force, and air pressure bag is placed in by the mode that its axis and Connection Block are coaxial and regulates in space; Hydraulic spring grease cup is placed in air pressure bag by the mode coaxial with air pressure bag; Needle-valve forms by one section of cylinder with the cone of a cylindrical end face for the cone end, holder is inserted on the top of needle-valve barrel portion, then holder and needle-valve is locked together by pivot pin (25); The bead (214) to inner process is provided with in hydraulic control valve seat through-hole between liquid outlet and adjustment space, needle-valve can be moved along the axis of bead under the effect of external force, the wall of bead towards its axis is provided with seal groove (215), hydraulic sealing ring (26) is placed in seal groove; The needle seating (216) to inner process is provided with in liquid inlet port endoporus below liquid outlet, needle seating is passed from bead (214) to the direction of liquid inlet port again through after hydraulic sealing ring in the tip of needle-valve, and the endoporus of needle seating blocks by needle-valve completely; Needle-valve upwards can be mentioned under the effect of external force to be made to produce space between needle seating and needle-valve or move down to be blocked completely by needle seating.
3. Self-resetting volume control device according to claim 2, is characterized in that: described pneumatic control valve (3) forms primarily of pneumatic control valve seat (31), gas spring (32), piston head (33), piston rod (34), stop bit lid (35), button (36) and fixed screw (37), the hollow cylindrical that described pneumatic control valve seat (31) is upper opening, one piece of demarcation strip (311) is provided with in the bottom of pneumatic control valve seat endoporus, the pore space of pneumatic control seat valve is divided into the gas control space being positioned at top and the connection space being positioned at below, the connection space of pneumatic control valve is threaded connection with the Connection Block of hydraulic control valve or bayonet socket is connected or be socketed, described demarcation strip (311) is provided with the connecting hole (312) being communicated with connection space and gas control space, in gas control space, the sidewall of pneumatic control valve seat is provided with outlet nozzle (313) outwardly, and outlet nozzle is connected with vacuum noz(zle) (12) by tracheae, the sidewall of pneumatic control valve seat is also provided with a bypass body outwardly, and in bypass body, be provided with bypass channel (314), the port of export of bypass channel is coaxial with outlet nozzle, and the entrance point of bypass channel is near demarcation strip, gas spring is placed on the demarcation strip in gas control space, arranges a locating slot (315) downwards from the top edge of pneumatic control valve seat along the inwall of pneumatic control valve seat, central shaft along stop bit lid (35) is provided with the centre bore that aperture is more than or equal to diameter of piston rod, along stop bit lid bottom wall edge, the stop bit bead to lower process is set, stop bit bead forms negative and positive with the endoporus of pneumatic control valve seat and coordinates, and the external diameter of stop bit lid is greater than the diameter of bore of pneumatic control valve seat, the top of piston head is fixed on the diapire of piston boit, at the sidewall setting positioning key (38) outwardly of piston head near piston boit, when piston head is moved up and down in gas control space, positioning key (38) to insert in locating slot (315) and moves up and down along locating slot, prevent piston head from rotating, and the amplitude that limited piston head moves up and down, the top of piston boit is passed the centre bore of stop bit lid from stop bit bead one end of stop bit lid, by fixed screw, button is fixed on piston boit top again, the end of piston head is inserted pneumatic control valve seat downwards, positioning key is made to enter in locating slot, stop bit lid is screwed on the internal thread of pneumatic control valve seat top entry by the external thread rotary being located at stop bit bead outer wall, stop bit lid is made to be fixed on pneumatic control valve seat top, the end of piston head props up gas spring, piston head outer wall below positioning key is provided with the through pore in the left and right vertical with the axis of piston head (36), pressing button makes piston head move down, when the lower surface of positioning key props up the diapire of locating slot, piston head can not move down again, at this moment, pore is communicated with the outlet side of bypass channel with outlet nozzle, when not pressing the button, pore is positioned at above the outlet side of outlet nozzle and bypass channel, is not communicated with the outlet side of bypass channel with outlet nozzle, the diameter of gas spring is less than the diameter of piston head, outer wall below Connection Block external screw thread is provided with more than one airflow hole, and described airflow hole is communicated with the space between Connection Block with air pressure bag, form tight fit between the outer wall of described piston head and the endoporus of pneumatic control valve seat, piston head can move up and down along pneumatic control valve seat endoporus axis under the effect of external force.
4. Self-resetting volume control device according to claim 3, it is characterized in that: the piston head outer wall above pore is provided with upper piston groove, upper sealing ring is placed in upper piston groove, piston head outer wall below pore set gradually parallel with upper seal groove in seal groove and lower seal groove cavity, middle sealing ring is placed in middle seal groove, and lower seal is placed in lower seal groove cavity.
5. Self-resetting volume control device according to claim 3, it is characterized in that: when not by lower piston, the pore of described piston head, upper sealing ring and middle sealing ring are all positioned at above the endoporus of outlet nozzle and the outlet side of bypass channel, and lower seal is positioned at below the outlet side of outlet nozzle and bypass channel; When pressing lower piston, described upper sealing ring is positioned at above the outlet side of outlet nozzle and bypass channel, and middle sealing ring is positioned at below the outlet side of outlet nozzle and bypass channel, and lower seal is positioned at above the inlet end of bypass channel; Pore is connected with the outlet side of bypass channel with outlet nozzle.
6. Self-resetting volume control device according to claim 1, it is characterized in that: in the jet mixer between the narrow positions and the port of export of described jet mixer, block water plate is set, water hole is left between block water plate and the inwall of jet mixer, described block water plate is taper, the vertex of a cone is towards the narrow positions of jet mixer, be provided with projection at block water plate towards the outer wall of water inlet end, washing agent and water be mixed to get more even.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526799.3U CN204162918U (en) | 2014-09-12 | 2014-09-12 | A kind of Self-resetting volume control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420526799.3U CN204162918U (en) | 2014-09-12 | 2014-09-12 | A kind of Self-resetting volume control device |
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| CN204162918U true CN204162918U (en) | 2015-02-18 |
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| CN201420526799.3U Expired - Fee Related CN204162918U (en) | 2014-09-12 | 2014-09-12 | A kind of Self-resetting volume control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463786A (en) * | 2014-09-12 | 2016-04-06 | 中山市雅西环保科技有限公司 | Self-reset flow control apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463786A (en) * | 2014-09-12 | 2016-04-06 | 中山市雅西环保科技有限公司 | Self-reset flow control apparatus |
| CN105463786B (en) * | 2014-09-12 | 2018-05-11 | 长乐市丽智产品设计有限公司 | A kind of Self-resetting volume control device |
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