CN201678853U - Negative-pressure generator - Google Patents
Negative-pressure generator Download PDFInfo
- Publication number
- CN201678853U CN201678853U CN2010201885809U CN201020188580U CN201678853U CN 201678853 U CN201678853 U CN 201678853U CN 2010201885809 U CN2010201885809 U CN 2010201885809U CN 201020188580 U CN201020188580 U CN 201020188580U CN 201678853 U CN201678853 U CN 201678853U
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- water
- water inlet
- negative
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Jet Pumps And Other Pumps (AREA)
Abstract
A negative-pressure generator comprises a negative-pressure pipe (1), an elbow (2), a bottom plate (3) and a water box (4), wherein the negative-pressure pipe is provided with a water inlet (101) and a water outlet (102); a nozzle (103) is arranged between the water inlet (101) and the water outlet (102); an amplifying part of the nozzle (103) is provided with a negative-pressure mouth (104); the elbow is arranged on the bottom plate (3) to form a water outlet (202); and the water outlet (102) of a water inlet pipe is connected with a water inlet (201) of the elbow. The negative-pressure generator is characterized in that the water box (4) is provided with a concave containing space (401); and a water outlet lower edge (2021) is arranged below an upper edge (4011) in the containing space (401). The negative-pressure generator is applicable to an automatic putting device for washing additives of home appliances.
Description
Technical field
The utility model belongs to a kind of depression generator that the household electrical appliance detergent additive is thrown in automatically that is used for.
Background technology
Along with the progress of detergent additive fluidization, the requirement of the automatic interpolation of liquid additive more and more chases after and cuts, and uses the pump equal power device to exist additive to solidify and causes blocking problem.
Japanese kokai publication hei 11-19391 provides a kind of scheme, a water pump is set in washing machine, water in the pump handle washing machine washtub or the water in the bathing pool are drawn on the interior pipeline of washtub a nozzle are set, has depression generator on the nozzle, when pumping water, utilize the big effect in nozzle contraction side, on the negative pressure pipe, form negative pressure, for the washing agent that attracts in the detergent box.This scheme can prevent that detergent additive concentrates coagulation problem on this pipeline, and stable preceding proposition of negative pressure of this depression generator output is by preposition water pump, provides stable flow of inlet water by water pump, thereby produces the negative pressure of certain limit.This device can not directly use the current of running water to produce negative pressure, if being removed the direct choosing of water pump, this device connects running water, then when tap water hydraulic on the low side (such as 0.02～0.05MPa) time, flow is little, cause difficult the bag by water of delivery port to be expired, air is invaded negative pressure pipe inside from the delivery port of negative pressure pipe and is caused the negative pressure at nozzle place to fluctuate because of atmospheric intrusion.This scheme requires the water pump that constant pressure is provided is set in addition, and cost is than higher.
Summary of the invention
Problem to be solved in the utility model is directly to use the running water current, by depression generator, no matter at low hydraulic pressure (0.02MPa), still under high hydraulic pressure (1.0MPa) state, can both export stable negative pressure.
For addressing the above problem, the technical solution adopted in the utility model is to comprise the negative pressure pipe, bent sub, base plate and water box, the negative pressure pipe is provided with water inlet and delivery port, be provided with nozzle between water inlet and the delivery port, the nozzle amplifier section has the negative pressure mouth, and bent sub is installed in base plate and forms the mouth of a river, and the delivery port of water inlet pipe links to each other with the water inlet of bent sub, it is characterized in that described water box is provided with spill and contains the space, described delivery port lower limb is positioned under the described top edge that contains the space.
Described negative pressure pipe is provided with pressure relief opening, and pressure relief opening is provided with and comprises the pressure release spring, the pressure relief device of connector and relief valve.
Described negative pressure pipe is provided with a relief port, is provided with by eduction valve the earial drainage device that O shape circle and earial drainage spring constitute in the relief port.
Negative pressure generator of the present utility model does not need extra power source, the stable negative pressure of the power of water output when only needing to utilize water inlet (running water).
Description of drawings
Fig. 1 is the outline drawing of negative pressure generator of the present utility model;
Fig. 2 is the cutaway view of negative pressure generator embodiment one of the present utility model;
Fig. 3 is the negative pressure mouth cutaway view of negative pressure generator embodiment two of the present utility model;
Fig. 4 is the explosive view of negative pressure generator embodiment three of the present utility model;
Fig. 5 is the cutaway view of negative pressure generator embodiment three of the present utility model;
Fig. 6 is the cutaway view of negative pressure pipe of the present utility model;
Negative pressure comparison diagram when Fig. 7 is the logical running water situation of each embodiment and prior art.
Be labeled as among the figure: 1 negative pressure pipe, 101 water inlets, 102 delivery ports, 103 nozzles, 104 negative pressure mouths, 105 pressure relief openings, 106 relief port, 11 pressure release springs, 12 connectors, 13 relief valves, 14 eduction valves, 15O shape circle, 16 earial drainage springs, 2 bent subs, 201 water inlets, 202 delivery ports, 3 base plates, 401 contain the space, 4 water boxes, 5 screws, 6O shape circle, 7O shape circle.
The specific embodiment
The negative pressure generator of present embodiment, as shown in Figure 1 and Figure 2, comprise negative pressure pipe 1, bent sub 2, base plate 3 and water box 4, the negative pressure pipe is provided with water inlet 101 and delivery port 102, be provided with nozzle 103 between water inlet 101 and the delivery port 102, nozzle 103 amplifier sections have negative pressure mouth 104, bent sub is installed in base plate 3 and forms the mouth of a river 202, the delivery port 102 of water inlet pipe links to each other with the water inlet 201 of bent sub, and water box 4 is provided with spill and contains space 401, and described delivery port lower limb 2021 is positioned under the described top edge 4011 that contains space 401.
Water flow to containing in the space 401 of water box from the water inlet 101 of negative pressure pipe through bent sub 2, when 1. tap water hydraulic is in the lower region, such as 0.02～0.05MPa, the flow that enters the negative pressure pipe is less, can be on the delivery port 102 of negative pressure pipe and the bent sub 2 by the water complete filling, when the water in containing space 401 was lower than delivery port lower limb 2021, air can enter the negative pressure pipe through bent sub, destroyed negative pressure; 2. after current kept a period of time, when the water in containing space 401 was higher than delivery port lower limb 2021, delivery port lower limb 2021 was positioned under the described top edge 4011 that contains space 401, and air can't enter the negative pressure pipe through bent sub, stablizes negative pressure.
Embodiment two
The negative pressure generator of present embodiment, as shown in Figure 3, negative pressure pipe 1 is provided with pressure relief opening 105, pressure relief opening 105 is provided with and comprises pressure release spring 11, the pressure relief device of connector 12 and relief valve 13, pressure relief device places on the base plate 3 by O shape circle 6, is fixed by screw 5 again.Other structure is with embodiment one.
Embodiment three
The negative pressure generator of present embodiment, as Fig. 4, shown in Figure 5, negative pressure pipe 1 is provided with a relief port 106, is provided with by eduction valve 14 the earial drainage device that O shape circle 15 and earial drainage spring 16 constitute in the relief port 106.The earial drainage device places on the base plate 3 by O shape circle 7, is fixed by screw 5 again.Other structure is with embodiment one or two.
During work, current enter negative pressure pipe and bent sub by water inlet pipe, when current are flowed through the negative pressure pipe, negative pressure generator produces negative pressure, and when the flow rate of water flow of water inlet during greater than setting value (as 7L/min), the earial drainage device is started working, a part of water is discharged through relief port, to stablize negative pressure.When the flow rate of water flow of water inlet further increases, relief port is not enough to regime flow, and negative pressure further rises, and during greater than setting value (as 0.05MPa), pressure relief device is started working, with air from negative pressure mouth negative suction pipe, to stablize negative pressure.
Claims (3)
1. negative pressure generator, comprise negative pressure pipe (1), bent sub (2), base plate (3) and water box (4), the negative pressure pipe is provided with water inlet (101) and delivery port (102), be provided with nozzle (103) between water inlet (101) and the delivery port (102), nozzle (103) amplifier section has negative pressure mouth (104), bent sub is installed in base plate (3) and forms the mouth of a river (202), the delivery port of water inlet pipe (102) links to each other with the water inlet (201) of bent sub, it is characterized in that described water box (4) is provided with spill and contains space (401), described delivery port lower limb (2021) is positioned under the described top edge (4011) that contains space (401).
2. negative pressure generator as claimed in claim 1 is characterized in that described negative pressure pipe (1) is provided with pressure relief opening (105), and pressure relief opening (105) is provided with and comprises pressure release spring (11), the pressure relief device of connector (12) and relief valve (13).
3. negative pressure generator as claimed in claim 1 or 2 is characterized in that described negative pressure pipe (1) is provided with a relief port (106), is provided with by eduction valve (14) the earial drainage device that O shape circle (15) and earial drainage spring (16) constitute in the relief port (106).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201885809U CN201678853U (en) | 2010-05-13 | 2010-05-13 | Negative-pressure generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201885809U CN201678853U (en) | 2010-05-13 | 2010-05-13 | Negative-pressure generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201678853U true CN201678853U (en) | 2010-12-22 |
Family
ID=43343905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201885809U Expired - Lifetime CN201678853U (en) | 2010-05-13 | 2010-05-13 | Negative-pressure generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201678853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242486A (en) * | 2010-05-13 | 2011-11-16 | 杭州神林电子有限公司 | Negative pressure generator |
-
2010
- 2010-05-13 CN CN2010201885809U patent/CN201678853U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242486A (en) * | 2010-05-13 | 2011-11-16 | 杭州神林电子有限公司 | Negative pressure generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209468814U (en) | A kind of multifunctional compensating formula box type negative-pressure-free supply equipment | |
| CN201678853U (en) | Negative-pressure generator | |
| CN102242486A (en) | Negative pressure generator | |
| CN206829257U (en) | A kind of constant pressure water supply equipment | |
| CN205727647U (en) | Aquarium is filtered at the bottom of automatic control cutout formula | |
| CN201024440Y (en) | Mute pressurizing pump and non-negative pressure water supply equipment | |
| CN203729116U (en) | Draining and filtering device and washing machine | |
| CN204826067U (en) | Press secondary water supply system for box pile | |
| CN206346266U (en) | Pipe network steady flow pressurization and water supply equipment | |
| CN201288358Y (en) | Waterproof hammer non negative-pressure feed water equipment | |
| CN203978958U (en) | The self-priming hydraulic ram of tail water | |
| CN208330821U (en) | A kind of pilot shaft attachment device | |
| CN207144044U (en) | There is the single-pot of protecting water hammer function without negative pressure pumping plant | |
| CN206513572U (en) | A kind of self prime pump | |
| CN206448972U (en) | A kind of bottom single impeller Downdraught submersible electric pump | |
| CN216552213U (en) | Double-tank type intelligent-connection partial-pressure water supply equipment | |
| CN206017282U (en) | A kind of circulating water type vacuum pump | |
| CN215633180U (en) | Steam turbine condensate water pumping system | |
| CN212835852U (en) | Vacuum pump station for public lavatory | |
| CN214945065U (en) | Water shortage protector | |
| CN211561939U (en) | Double-water-injection vacuum degasser | |
| CN211215800U (en) | Circulation high-pressure water supply system | |
| CN212465738U (en) | Automatic water supply device for barreled drinking water | |
| CN102477930A (en) | Sewage treatment system of electricity generating equipment | |
| CN213835972U (en) | Drainage device for washing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101222 |