CN202484370U - Check valve assembly and pump and water purification device using check valve assembly - Google Patents
Check valve assembly and pump and water purification device using check valve assembly Download PDFInfo
- Publication number
- CN202484370U CN202484370U CN2012200491599U CN201220049159U CN202484370U CN 202484370 U CN202484370 U CN 202484370U CN 2012200491599 U CN2012200491599 U CN 2012200491599U CN 201220049159 U CN201220049159 U CN 201220049159U CN 202484370 U CN202484370 U CN 202484370U
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- check valve
- valve assembly
- valve seat
- spool
- pendulum
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Abstract
The utility model relates to a check valve assembly and a pump and a water purification device using the check valve assembly. The check valve assembly comprises a valve body which comprises a first valve seat and a second valve seat, a first channel communicated with the first valve seat, a second channel communicated with the second valve seat, a first valve plug installed on the first valve seat and a second valve plug installed on the second valve seat. The check valve assembly is characterized by further comprising a swing piece which is located above the first valve seat and the second valve seat and can be installed between the first valve seat and the second valve seat in a pivoted mode. The utility model further comprises the pump and the water purification device using the check valve assembly. The check valve assembly, the pump and the water purification device improve structure of the check valve assembly to decrease the quantity of parts and save volume and weight, and the check valve assembly is flexible and rapid in operation and can reduce unnecessary leakage.
Description
Technical field
The utility model relates to a kind of one-way valve, is specifically related to check valve assembly.The utility model also relates to and is used for pump, the check valve assembly that uses in the plunger pump that especially in water purification installation, uses, and water purification installation.
Background technique
Normally used one-way valve comprises and has valve body, spool and return mechanism (spring).When the hydrodynamic pressure in the water transport channel reaches or greater than preset pressure the time, this pressure overcome return mechanism (spring) elastic force and with spool jack-up from the valve seat of valve body, thereby make the water transport channel conducting; When the pressure of fluid in the water transport channel less than the elastic force of return mechanism (spring) time, spool is crushed on the sealing surface of valve seat, thereby water transport channel is sealed with contacting of valve seat through spool.
For example Chinese patent discloses a kind of one-way valve No. 200920066543.3, and wherein valve body comprises gas-entered passageway and outlet passageway, and spool is connected through spring with valve core case, and valve core case is fixed on valve body outlet passageway outside.
For hand pump, plunger type hand pump especially, it has one or two plunger pump usually, through up and down or the fork that swings the piston in the plunger pump is moved back and forth, thereby produce press water.Each plunger pump is respectively arranged with one-way valve on its intake tunnel and exhalant canal, with water inlet and the water outlet that is used for this plunger pump.Each one-way valve is provided with return mechanism separately usually.
For example, Chinese patent the 200920142335.1st discloses a kind of duplex one-way valve group, and it comprises valve seat 7; Be provided with two transverse passageway in the valve seat 7, and two cavitys communicate, the upper end of cavity is a filler opening; Valve seat 6 is arranged in the cavity; Be provided with guiding valve 4 in the valve seat 6, stage clip 3 is arranged in the guiding valve 4, the end of stage clip is provided with gland 2.Though this patent is assembled in two one-way valves in the valve body, owing to be interconnected between two one-way valves, so it is still only to single water transport channel effect, and all be provided with independent spring in each one-way valve.
Therefore, existing one-way valve all is each independent action, is separately positioned among the water transport channel separately, and contact and branch are not arranged each other.
For portable water purifying equipment, it generally includes the filter core with the effect of purifying waste water, and has in the filter core to be used for needs are carried out the filter membrane that the water of purified treatment is handled.After the water that need carry out purified treatment gets into filter core, must have certain pressure and can make water molecule from the water of high ion concentration, pass filter membrane to move to the direction of the fresh water of low ion concns.Therefore to the water that needs carry out purified treatment be pressurizeed usually.And in portable water purifying equipment, generally use the power of hand pump as pressurization.In the existing technology, pump commonly used in the portable water purifying equipment is a plunger pump.
For this water purification installation can effectively be worked, need apply very high pressure to filter core.For example be used under the situation of purifying sea water, this pressure is usually up to 50kg/cm
2More than.
In another patent ZL 201020567282.0 of the inventor of the utility model, a kind of water desalination treatment device is disclosed.Wherein, the high pressure water of hand piston pump generation is discharged through being arranged on two one-way valves in the exhalant canal separately.
Because portable water purifying equipment is very strict to the requirement of volume and weight, therefore need reduce the volume and weight of equipment as much as possible, it is little in light weight and product that quality is high is the important issue that the artificer faces therefore how to design volume.
The model utility content
In view of the shortcoming of above-mentioned existing technology, the utility model technical problem to be solved provides a kind of check valve assembly with novel structure, and it has little, the lightweight characteristics of volume.
The utility model also is devoted to provide a kind of water purification installation of novelty.
In order to achieve the above object, according to the first aspect of the utility model, the utility model provides a kind of check valve assembly, comprising: valve body, this valve body comprise first valve seat and second valve seat; The first passage that communicates with first valve seat; The second channel that communicates with second valve seat; Be installed in first spool on first valve seat; Be installed in second spool on second valve seat; This check valve assembly further comprises: pendulum, this pendulum are positioned at said first spool and second spool top, can be installed in pivotally between first spool and second spool with respect to valve seat.
According to the second aspect of the utility model, said pendulum is installed on the valve seat through bearing pin.
According to the third aspect of the utility model, the pendulum equal in length of said bearing pin both sides.
According to the fourth aspect of the utility model, the lower surface of said pendulum is apart from the upper surface 0.3-1mm of spool.
According to the 5th aspect of the utility model, said first spool and second spool are the cylindrical body of spheroid, centrum or dribbling shape or taper head end.
According to the 6th aspect of the utility model, said pendulum is arranged in the groove of the end face that is opened in valve seat.
According to the 7th aspect of the utility model, the pendulum equal in length of said bearing pin both sides, said first spool and second spool are the cylindrical body of spheroid, centrum or dribbling shape or taper head end, said pendulum is arranged in the groove of the end face that is opened in valve seat.
According to the eight aspect of the utility model, said check valve assembly uses on plunger pump.
The utility model also provides a kind of pump, it comprise the utility model first to the eight aspect any described check valve assembly.
The utility model also provides a kind of water purification installation, and it comprises pump, this pump comprise the utility model first to the eight aspect any described check valve assembly.
The described water purification installation of the utility model includes but not limited to seawater (comprising pained salt water, salt buck) desalting plant, water filtration treatment device etc.
The beneficial effect of the check valve assembly of the utility model, pump and water purification installation is: owing to improved structure, thus make the part count parts be able to reduce, and saved volume and weight.And this check valve assembly flexible operation is quick, can reduce unnecessary seepage.
The check valve assembly of the utility model can also reach the effect that makes things convenient for quick pressure releasing.
Be used to explain the embodiment of the principle of the utility model through Figure of description and with accompanying drawing below, further feature of the utility model and advantage will become clear or be able to explain more particularly.
Description of drawings
Fig. 1 is the schematic representation of the check valve assembly of expression the utility model exemplary embodiment, and wherein first exhalant canal is opened, and second exhalant canal is closed.
Fig. 2 is the schematic representation of another state of check valve assembly of representing among Fig. 1, and wherein second exhalant canal is opened, and first exhalant canal is closed.
Fig. 3 is the schematic representation of another state of check valve assembly of representing among Fig. 1, and wherein first and second spools all are in not compacted state.
Fig. 4 is the schematic representation of the pump housing that is combined with the check valve assembly of the utility model.
Fig. 5 is the schematic representation that has the water purification installation of the pump housing that combines the utility model check valve assembly.
Critical piece explanation in the accompanying drawing:
Valve body 1; Valve seat 2,3;
Pendulum 8; Pivot 9;
Fork 10; Handle 11;
A: handle; B: water intake;
C: the pump housing; D: the connecting sleeve of the pump housing and film pipe
E: film pipe and filter core; F: rear end off-load blowdown valve seat and connecting sleeve;
G: fresh water mouth; H: strong sewage mouth.
Embodiment
Below in conjunction with accompanying drawing 1-3 the check valve assembly of the utility model is elaborated.
Fig. 1-3 shows the check valve assembly of the utility model.This check valve assembly comprises valve body 1, two water transport channel 4 and 5, two spools 6 and 7 and pendulum 8.
Wherein water transport channel 4 constitutes an one-way valve with spool 6; And water transport channel 5 constitutes the another one one-way valve with spool 7.Pendulum 8 is as two return mechanisms that one-way valve is shared.Two one-way valves are realized interlock with a pendulum 8 auxiliary switchings through discharge pressure, make the pump housing in use realize the action of water inlet and outlet.Wherein also the passage (not shown) of water communicates with being used in the water transport channel 4 and 5, and when piston moved upward, the passage of this water inlet was closed.
Structure and effect in the face of concrete each parts is elaborated down.
Have valve seat 2,3 on the valve seat 1, spool 6 and 7 is installed on the valve seat 2,3.Through engaging and the fluid of carrying from water transport channel 4,5 sealed between valve seat 2,3 and spool 6 and 7.
Valve body 1 is provided with on the pump housing in the present embodiment, however valve body can be arranged on any parts, for example on the cylinder body of cylinder, the first-class parts of cylinder.Valve body can be selected for use but be not limited to stainless steel, titanium alloy, aluminum alloy, engineering plastics or the like; Its production method can be selected for use but be not limited to casting, die casting, injection moulding, machining or the like.
Through end face a groove is set at valve body, and the chamber that forms one-way valve and hold pendulum 8.Wherein the lower end of groove communicates with two water transport channel 4,5, and the other end is connected to water outlet.Certainly, this groove also can be positioned at valve inner as required, and is not limited only to end face.
Spool 6 and 7 can be the cylindrical body of spheroid, cone or dribbling shape or taper head end, also can be spool shape commonly used in related domain.The water inlet and outlet one-way valve designs adopts the cone match that is provided with on ball pearl and the valve seat to realize opening and closing in the present embodiment.Its material can be selected for use but be not limited to stainless shot, ceramic bead, plastic bead, glass bead.For sea-water purifying device, consider burn into machining accuracy and manufacture cost, the preferred glass pearl.
Pendulum 8 is a plate-shaped member, is installed in the top of spool 6 and 7, is provided with bearing pin 9 in the centre of pendulum 8, and this bearing pin 9 passes the hole on the pendulum 8.Therefore through this bearing pin 9, pendulum 8 is pivotably mounted on the valve body 1.Be that pendulum 8 can rotate in the scope of bearing pin 9 at groove.
Though; A bearing pin shown in the embodiment of the application Fig. 1-3; But other are any can be mounted to the structure that pivots with respect to valve body all in the scope of the utility model protection with pendulum; For example can be provided with axle and the hole is set by pendulum, this axle is inserted in this hole, also can reach the effect that pendulum is pivoted at valve seat.
Pendulum 8 and spool 6, the gap between 7 can be 0.1-1mm, and concrete size can be adjusted according to the water-outlet quantity of pump and the diameter of piston; If for example the diameter of piston is little or stroke is little (water displacement is few), it is smaller that this gap can be provided with; Otherwise, the big or stroke big (water displacement is big) of the diameter of pump, it is bigger that this gap can be provided with.Be 10mm for diameter for example, be used for the plunger pump of purifying sea water, the gap between pendulum and the valve body can be set to 0.3mm.
Among the embodiment who illustrates in the drawings, bearing pin 9 is positioned at the neutral position of pendulum 8, and promptly the pendulum length of bearing pin 9 the right and lefts equates basically, so the power of pendulum 8 both sides effect equates basically.In fact, this pendulum is a similar seesaw structure, and the pressure of the water through piston action is realized the opening and closing control to two one-way valves.
Though the length of these pendulum 8 both sides equates basically in the present embodiment; But the length of these both sides also can be unequal.
Be illustrated though the utility model has combined to have the embodiment of the check valve assembly of two water transport channel, the utility model can also be used for the water transport channel of other even numbers, for example 4,6 or 8 water transport channel.It also can be used for the pump of other types, and is not limited to plunger pump.
The check valve assembly of the utility model not only can be used for the delivery side of pump passage also can be used for inlet passage; Principle and the structure when being arranged on outlet passage is identical basically to be arranged on principle and structure on the inlet passage.
The certain situation that regards to down when this check valve assembly is applied to the portable water purification device describes.
The portable water purification device in use, the pressure that its hand pump produces is very big, when being used for seawater cleaning, can reach 50 kg/cm.Therefore in the time of withdraw from service, hope to keep so high pressure in the water purification installation, because when people take action with the water purification installation with high pressure like this, can have the hidden danger on the safety.Therefore, hope to make in the water purification installation pressure can pressure release apace after stopping to suppress.
When the check valve assembly of the utility model was used for purification plant, the claimant was surprisingly found out that, owing to use this check valve assembly, the pressure in the filter core can 5-10 pressure release apace in second after stopping to suppress.
According to the inventor structure of the utility model is discovered,, therefore in filter core, under the situation of fills with water, also can be produced very big pressure even squeeze into the water of very small amount because water is incompressible basically material.After hand pump stopped to suppress, because two plunger pumps all no longer produce pressure, the power that therefore acts on the pendulum was in state of equilibrium, and promptly pendulum is in the equilibrium position shown in Fig. 3, neither pushes down first valve body and does not also push down second valve body.Two valve bodies can break away from the sealing surface of valve seat under the effect of water, and press water is from the gap earial drainage between spool and the sealing surface, thereby make pressure pressure release apace in the filter core.
Describe below in conjunction with the operation of accompanying drawing the utility model check valve assembly.
Shown in Fig. 1-3, the check valve assembly of the utility model uses on the hand piston pump of water purification installation.This water purification installation comprises two plunger pumps, first plunger pump 12 and second plunger pump 13.
As shown in Figure 1, when depressing handle 11, under the effect of fork 10, the first piston 14 of first plunger pump 12 moves upward and water in the compression piston, and water pressure is wherein raise.Owing to second plunger pump 13 moves down the into water state that is under the drive of fork 10, pressure is lower than first plunger pump 12.Therefore, pendulum 8 receives the power that comes from first piston 14 and from the power on second piston 15, and the power that comes from first piston 14 is greater than from the power on second piston 15; Pendulum 8 is by first spool, 6 jack-up of first plunger pump 12, and presses to second spool 7 of second plunger pump 13; The exhalant canal of first plunger pump 12 is owing to moving up of spool 6 opened, thereby makes the exhalant canal conducting, and press water enters into filter core by first plunger pump 12; The exhalant canal of second plunger pump 13 is pressed on the valve seat 3 by pendulum 8 owing to spool 7, and second plunger pump, 13 exhalant canals are closed.
As shown in Figure 2, in the time of lifting handle 11, under the effect of fork 10, second piston 15 of second plunger pump 13 moves upward and water in the compression piston, and water pressure is wherein raise.Therefore; Pendulum 8 is pressed to first spool 6 of first plunger pump 12 by second spool, 7 jack-up of second plunger pump 13; So the exhalant canal of second plunger pump 13 is owing to moving up of spool 7 opened, thereby make the exhalant canal conducting, press water enters into filter core by second plunger pump 13; And the exhalant canal of first plunger pump 12 is pressed on the valve seat 2 by pendulum 8 owing to spool 6, and first plunger pump, 12 exhalant canals are closed.
As shown in Figure 3, when stopping the setting-out action of handle 11, two plunger pumps 12,13 do not produce pressure, thereby make the pressure that acts on the pendulum 8 reach balance.At this moment, pendulum 8 is in and two spools, 6,7 all discontiguous positions, promptly is not pressed in the position on any one spool, and under the effect of water, spool 6,7 and valve seat 2,3 break away from, and make water pressure release in the filter core.
The portable water purification device of the check valve assembly that has been equipped with the utility model is described below in conjunction with Fig. 5.
This portable water purification device includes front end pump housing part, intermediate coat pipe and filter core part and rear end off-load blowdown part.Intermediate coat pipe and filter core part respectively with front end pump housing part and rear end off-load blowdown partly with being threaded.
The pump housing partly includes into water and goes out water one-way valve, plunger pump, fork and handle.Drive handle and plunger pump is moved back and forth suck water to be clean through shaking fork, and the pump housing is discharged in this water pressurization back, enter into intermediate coat pipe and filter core part.
In intermediate coat pipe and film core filter core part, water to be clean generates satisfactory fresh water through reverse osmosis, and unnecessary strong sewage is discharged to rear end off-load blowdown part.
The off-load blowdown part in the rear end, fresh water is discharged from fresh water pipe, and strong sewage is discharged from sewage pipe.
The utility model is separately positioned on the elastic member in each one-way valve usually owing to use pendulum to replace, thereby has reduced number of components, the volume and weight of saving.And when stopping to suppress, pump no longer produces pressure, and the power that acts on the pendulum is in state of equilibrium, and press water is from the gap earial drainage between valve body and the sealing surface, thereby makes pressure pressure release apace in the filter core, guarantees the safe handling of hand pump.
Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the concrete realization of the utility model does not receive the restriction of aforesaid way; As long as adopted method design of the utility model and the various improvement that technological scheme is carried out; Perhaps the design of the utility model and technological scheme are directly applied to other occasions, all within the protection domain of the utility model without improving.
Claims (10)
1. check valve assembly comprises:
Valve body, this valve body comprise first valve seat and second valve seat;
The first passage that communicates with first valve seat;
The second channel that communicates with second valve seat;
Be installed in first spool on first valve seat;
Be installed in second spool on second valve seat;
It is characterized in that: this check valve assembly further comprises:
Pendulum, this pendulum are positioned at said first spool and second spool top, can be installed in pivotally between first spool and second spool with respect to valve seat.
2. check valve assembly according to claim 1 is characterized in that: said pendulum is installed on the valve seat through bearing pin.
3. check valve assembly according to claim 2 is characterized in that: the pendulum equal in length of said bearing pin both sides.
4. check valve assembly according to claim 1 and 2 is characterized in that: the lower surface of said pendulum is apart from the upper surface 0.3-1mm of spool.
5. check valve assembly according to claim 1 is characterized in that: said first spool and second spool are the cylindrical body of spheroid, centrum or dribbling shape or taper head end.
6. check valve assembly according to claim 1 is characterized in that: said pendulum is arranged in the groove of the end face that is opened in valve seat.
7. check valve assembly according to claim 4; It is characterized in that: the pendulum equal in length of said bearing pin both sides; Said first spool and second spool are the cylindrical body of spheroid, centrum or dribbling shape or taper head end, and said pendulum is arranged in the groove of the end face that is opened in valve seat.
8. check valve assembly according to claim 1 is characterized in that: said check valve assembly uses on plunger pump.
9. a pump is characterized in that, this pump comprises each described check valve assembly among the claim 1-8.
10. a water purification installation is characterized in that, this water purification installation comprises pump, and this pump comprises each described check valve assembly among the claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200491599U CN202484370U (en) | 2012-02-15 | 2012-02-15 | Check valve assembly and pump and water purification device using check valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200491599U CN202484370U (en) | 2012-02-15 | 2012-02-15 | Check valve assembly and pump and water purification device using check valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202484370U true CN202484370U (en) | 2012-10-10 |
Family
ID=46958793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200491599U Expired - Lifetime CN202484370U (en) | 2012-02-15 | 2012-02-15 | Check valve assembly and pump and water purification device using check valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202484370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256409A (en) * | 2012-02-15 | 2013-08-21 | 浦坚 | Check valve assembly and pump and water purifying device using same |
-
2012
- 2012-02-15 CN CN2012200491599U patent/CN202484370U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256409A (en) * | 2012-02-15 | 2013-08-21 | 浦坚 | Check valve assembly and pump and water purifying device using same |
| WO2013120400A1 (en) * | 2012-02-15 | 2013-08-22 | Pu Jian | Check valve assembly, and pump and water purification device using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121010 Effective date of abandoning: 20150107 |
|
| RGAV | Abandon patent right to avoid regrant |