CN203906259U - Charging valve mechanism and valve pump applying same - Google Patents

Charging valve mechanism and valve pump applying same Download PDF

Info

Publication number
CN203906259U
CN203906259U CN201420057381.2U CN201420057381U CN203906259U CN 203906259 U CN203906259 U CN 203906259U CN 201420057381 U CN201420057381 U CN 201420057381U CN 203906259 U CN203906259 U CN 203906259U
Authority
CN
China
Prior art keywords
valve
charging
discharging
guide portion
feed end
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
Application number
CN201420057381.2U
Other languages
Chinese (zh)
Inventor
王小强
汪立欢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Leili Motor Co Ltd
Original Assignee
Changzhou Leshi Leili Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Changzhou Leshi Leili Motor Co Ltd filed Critical Changzhou Leshi Leili Motor Co Ltd
Priority to CN201420057381.2U priority Critical patent/CN203906259U/en
Application granted granted Critical
Publication of CN203906259U publication Critical patent/CN203906259U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model provides a charging valve mechanism and a valve pump applying the same. The charging valve mechanism comprises a valve (1) and a valve tube (2); the valve (1) comprises a discharging guide part (11), a feed guide part (12) and a support part (13), wherein the discharging guide part (11) is used for enabling the inner space of the charging valve mechanism to be unidirectionally communicated with a discharging space; the feed guide part (12) is used for enabling the inner space of the charging valve mechanism to be unidirectionally communicated with a feed space; the support part (13) plays a part in supporting the discharging guide part (11) and the feed guide part (12); the valve tube (2) comprises a valve tube opening part (21) and a valve tube body part (22), wherein the valve tube opening part (21) is matched with the support part (13) to realize material exchange between the inner space (B) of the valve tube (2) and the inner space (A) of the valve (1); the valve tube body part (22) is provided with a telescopic structure, and is capable of extruding materials outwards from the inner space (B) of the valve tube (2) and sucking the materials inwards from the inner space (B) of the valve tube (2).

Description

Feed end mechanism and apply the valve pump of this feed end mechanism
Technical field
The utility model relates to a kind of valve system, in particular to a kind of for adding the valve system such as the material of liquid, and the valve pump of application Liao Gai feed end mechanism.Especially, described valve pump can be arranged in washing machine, for adding the laundry materials such as liquid detergent.
Background technique
In traditional material supply system, at least there is a feeding pipe and a discharging pipeline, can also there is multiple feeding pipes and/or multiple discharging pipeline, and conventionally on each pipeline, one-way valve is set and control the flow direction of material.If these one-way valves are integrated in a material supply arrangement, realize the control to the material feeding direction, can make so the complex structure of material supply arrangement, volume is larger.For example, for requiring the smaller application scenarios of volume (be arranged in washing machine for add the valve pump of the laundry material such as liquid detergent to laundry item), this design needs improvement.
In addition, mainly adopt gear pump and plunger pump at present in washing machine for the valve pump of pumping liquid detergent, gear pump and plunger pump structure are more complicated, control to flow is unstable, and owing to all there being friction member in gear pump and plunger pump, therefore easily produce noise, and the life-span is shorter.
Model utility content
In order to overcome one of above-mentioned defect, according to one side of the present utility model, provide a kind of feed end mechanism, comprise valve and valve pipe, wherein, valve comprises: discharging guide portion, the inner space that makes feed end mechanism with go out material space one-way conduction; Charging guide portion, makes inner space and the charging space one-way conduction of feed end mechanism; And supporting portion, playing the supporting effect to discharging guide portion and charging guide portion, valve pipe comprises: valve tube opening part, it matches with supporting portion, realizes the material exchange of the Yu Fa inner space, inner space of valve pipe; With valve tube body part, it has telescopic structure, can outwards extrude material from the inner space of valve pipe, and inwardly sucks material from the inner space of valve pipe.
According to the utility model embodiment's feed end mechanism, alternatively, discharging guide portion, charging guide portion and supporting portion are integrated by flexible material.
According to the utility model embodiment's feed end mechanism, alternatively, the top of discharging guide portion is the valve nozzle structure of flexible flat shape, and bottom is columnar nozzle structure, between valve nozzle structure and nozzle structure, is communicated with by the transition structure of a flat taper.
According to the utility model embodiment's feed end mechanism, alternatively, charging guide portion is down umbrella shape, and is arranged on the bottom of the nozzle structure of discharging guide portion.
According to the utility model embodiment's feed end mechanism, alternatively, supporting portion comprises one or more openings for material turnover exchange.
According to the utility model embodiment's feed end mechanism, alternatively, the opening of supporting portion is the interval between perforation or adjacent stiffening rib.
According to the utility model embodiment's feed end mechanism, alternatively, valve also comprises boss part, and this boss part is arranged between discharging guide portion and charging guide portion, for fixing described valve.
According to the utility model embodiment's feed end mechanism, alternatively, discharging guide portion, charging guide portion, supporting portion and boss part are integrated by flexible material.
According to the utility model embodiment's feed end mechanism, alternatively, valve tube opening part at least forms two circular opens that diameter is different, wherein, the diameter of the first circular open that diameter is larger is greater than the external diameter of charging guide portion, and the diameter of less the second circular open of diameter is less than the external diameter of supporting portion.Alternatively, the degree of depth of the first circular open and the height of supporting portion match.
According to the utility model embodiment's feed end mechanism, alternatively, valve tube opening part forms three circular opens from top to bottom successively, and wherein, the diameter of the first circular open is greater than the external diameter of charging guide portion; The diameter of the second circular open is less than the external diameter of charging guide portion; And the diameter of the 3rd circular open is less than the external diameter of supporting portion.
According to the utility model embodiment's feed end mechanism, alternatively, valve pipe also comprises fore-set, and this fore-set is some or all of is placed in valve tube body partial interior, and the lower end of this fore-set is arranged at valve tube body part bottom.
According to the utility model embodiment's feed end mechanism, alternatively, fore-set has irregular cylindrical shape.
According on the other hand of the present utility model, a kind of valve pump is provided, comprise: aforesaid feed end mechanism, discharging portion, charging portion, linkage portion, cam and motor, wherein, discharging portion and charging portion respectively with the material pipeline connection of valve pump outside, and realize the pump chamber of valve pump and the one-way conduction of discharging portion by discharging guide portion, realized the one-way conduction of valve pocket and charging portion by charging guide portion; One end of linkage portion is connected with cam, cam drives rotation by the output shaft of motor, thereby rotatablely moving of motor output shaft is converted to the straight reciprocating motion of linkage portion, and the other end of linkage portion is fixedly connected with valve pipe, thereby along with the straight reciprocating motion of linkage portion, valve pipe shrinks or extends.
According to the utility model embodiment's valve pump, alternatively, discharging portion and charging portion are the combinations of interface, pipeline or interface and pipeline.
According to the utility model embodiment's valve pump, alternatively, discharging portion is mutually vertical or parallel with charging portion.
According to another aspect of the present utility model, a kind of valve pump is provided, has comprised: valve, valve pipe, discharging portion, charging portion, linkage portion, cam and motor, wherein, discharging portion and charging portion respectively with the material pipeline connection of valve pump outside, and realize the pump chamber of valve pump and the one-way conduction of discharging portion by valve, realized the one-way conduction of valve pocket and charging portion by valve; One end of linkage portion is connected with cam, cam drives rotation by the output shaft of motor, thereby rotatablely moving of motor output shaft is converted to the straight reciprocating motion of linkage portion, and the other end of linkage portion is fixedly connected with valve pipe, thereby along with the straight reciprocating motion of linkage portion, valve pipe shrinks or extends.
According to the utility model embodiment's valve pump, alternatively, valve pump is installed in washing machine, for the material of feeding laundry use.
Provide a kind of for supplying with the valve pump of material more on the one hand according to of the present utility model, it comprises: valve, valve pipe, discharging portion, charging portion, linkage portion, cam, motor and housing parts, wherein, discharging portion and charging portion respectively with the material pipeline connection of valve pump outside, and realize the pump chamber of valve pump and the one-way conduction of discharging portion by valve, realized the one-way conduction of valve pocket and charging portion by valve; One end of linkage portion is connected with cam, cam drives rotation by the output shaft of motor, thereby rotatablely moving of motor output shaft is converted to the straight reciprocating motion of linkage portion, and the other end of linkage portion is fixedly connected with valve pipe, thereby along with the straight reciprocating motion of linkage portion, valve pipe shrinks or extends; Housing parts comprises front cover portion and main body, and the two is realized and being connected by shell engaging mechanism, wherein, form discharging portion and charging portion, and front cover portion is that valve provides support and locates at front cover portion; The space mounting that main body limits has the assemblies such as valve pipe, linkage portion, cam and motor, and main body is that valve pipe provides support and locates, and is the flexible space that provides of valve pipe.Preferably, shell engaging mechanism is realized the connection to front cover portion and main body by snap connection means.
According to the utility model embodiment's feed end mechanism, can realize with single valve arrangement the one-way conduction of discharging path and feed passageway, so, can optimize installing space.In addition, according to scheme of the present utility model, feed end mechanism has the valve tubular construction matching with valve arrangement, and this valve pipe has Collapsible structure, thereby has saved friction member, is difficult for producing noise, and the life-span is also longer.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment's technological scheme, below the accompanying drawing to embodiment is briefly described, apparently, the accompanying drawing in the following describes only relates to embodiments more of the present utility model, but not to restriction of the present utility model.
Fig. 1 is according to the cross section view of a kind of valve pump of the utility model embodiment;
Fig. 2 a is combination brake switch and proporting in the valve pump shown in Fig. 1 and the three-dimensional view of valve tubular portion, and Fig. 2 b is the cross section view of this combination brake switch and proporting and valve tubular portion;
Fig. 3 is the three-dimensional view of the combination brake switch and proporting in Fig. 2 a and Fig. 2 b;
Fig. 4 a is the cross section view of the valve pipe in Fig. 2 a and Fig. 2 b, and Fig. 4 b is the example of the another kind of constructional variant of this valve pipe;
Fig. 5 is the valve pump of Fig. 1 work schematic diagram in outside discharging process;
Fig. 6 is the valve pump of Fig. 1 work schematic diagram in inside fill process;
Fig. 7 a is according to the cross section view of the utility model embodiment's another kind of valve pump, and Fig. 7 b is the three-dimensional appearance view of this valve pump;
Fig. 8 is the valve pump of Fig. 7 a and the 7b work schematic diagram in outside discharging process;
Fig. 9 is the valve pump of Fig. 7 a and the 7b work schematic diagram in inside fill process;
Figure 10 is according to the sectional view of the combination brake switch and proporting of another valve pump of the utility model embodiment and valve tubular portion;
Figure 11 is the valve pump of Figure 10 schematic partial cross-sectional view in the time of outside discharging;
Figure 12 is the valve pump of Figure 10 schematic partial cross-sectional view in the time of inside charging.
Embodiment
For making the utility model embodiment's object, technological scheme and advantage clearer, below in conjunction with the utility model embodiment's accompanying drawing, the utility model embodiment's technological scheme is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present utility model, instead of whole embodiments.Based on described embodiment of the present utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite without creative work, belongs to the scope that the utility model is protected.
Unless otherwise defined, technical term used herein or scientific terminology should be and in field, have the ordinary meaning that the personage of general technical ability understands under the utility model." first ", " second " and the similar word that in the utility model patent application specification and claims, use do not represent any order, quantity or significance, and are just used for distinguishing different constituent elements.Equally, the similar words such as " " or " " do not represent restricted number yet, but represent to exist at least one.
Fig. 1 is according to the cross section view of a kind of valve pump of the utility model embodiment.As shown in Figure 1, described valve pump comprises: combination brake switch and proporting 1, valve pipe 2, discharging portion 3, charging portion 4, linkage portion 6, cam 7 and motor 8.Wherein, combination brake switch and proporting 1 and valve pipe 2 have formed the valve system of valve pump, and discharging portion 3 and charging portion 4 have formed the feeding-discharging mechanism of valve pump, and linkage portion 6, cam 7 and motor 8 have formed the driving mechanism of valve pump.Pump chamber 5 is that it at least comprises the inner space of combination brake switch and proporting 1 and the inner space of valve pipe 2, and can be communicated with discharging portion 3 and charging portion 4 by combination brake switch and proporting 1 at the inner cavity forming of valve pump.The transfer space that this pump chamber 5 is materials.
The different piece of combination brake switch and proporting 1 coordinates with valve pipe 2, discharging portion 3 and charging portion 4 respectively, thereby realizes the unilaterally connected of valve pipe 2 and discharging portion 3, valve pipe 2 and charging portion 4.Valve pipe 2 has telescopic structure, and in the time that it shrinks, material is pressed into discharging portion 3 by combination brake switch and proporting 1; In the time that valve pipe 2 extends, material enters into valve pipe 2 inside from charging portion 4 through combination brake switch and proporting 1.
Discharging portion 3 and charging portion 4 respectively with the material pipeline connection of valve pump outside, and control the conducting between outside material pipeline and pump chamber 5 by combination brake switch and proporting 1.Structurally, discharging portion 3 and charging portion 4 can be one section of pipelines, and its spatial relationship can be mutually vertical as shown in Figure 1, also can become other angle.Discharging portion 3 and charging portion 4 can be also the combinations of interface or interface and pipeline.
Driving mechanism is flexible for drive control valve pipe 2.As shown in Figure 1, driving mechanism comprises linkage portion 6, cam 7 and motor 8.One end of linkage portion 6 is connected with cam 7, and cam 7 drives rotation by the output shaft of motor 8, thereby rotatablely moving of motor 8 output shafts is converted to the straight reciprocating motion of linkage portion 6.Be accompanied by the straight reciprocating motion of linkage portion 6, valve pipe 2 shrinks or extends.When linkage portion 6 is during to the direction straight line motion of valve pipe 2, valve pipe 2 is compressed like this; When linkage portion 6 is during to direction straight line motion away from valve pipe 2, valve pipe 2 extends.If one end that linkage portion 6 contacts with valve pipe 2 is not fixedly connected with valve pipe 2, so in linkage portion 6 during to direction straight line motion away from valve pipe 2, compressed valve pipe 2 can be replied elongation voluntarily.
Alternatively, one end of linkage portion 6 is fixedly connected with valve pipe 2, and when linkage portion 6 is during to the direction straight line motion of valve pipe 2, valve pipe 2 is compressed like this; When linkage portion 6 is during to direction straight line motion away from valve pipe 2, valve pipe 2 is stretched.Due to the stretching action of linkage portion 6, can accelerate valve pipe 2 and suck the speed of material, and owing to replying voluntarily elongation without valve pipe 2, can reduce the requirement to valve pipe 2 recovery characteristics, also can extend the life-span of valve pipe 2.
As shown in Figure 1, the housing parts of valve pump can comprise front cover portion 10A and main body 10B, and the two is realized and being connected by shell engaging mechanism CL.Wherein, form discharging portion 3 and charging portion 4 at front cover portion 10A, and the respective outer side edges of the structure of front cover portion 10A and combination brake switch and proporting 1, thereby provide support and locate for combination brake switch and proporting 1; The space that main body 10B limits is provided with the assemblies such as valve pipe 2, linkage portion 6, cam 7 and motor 8, the structure of main body 10B also with the respective outer side edges of valve pipe 2, thereby provide support and locate for valve pipe 2, and be the flexible space that provides of valve pipe 2.Shell engaging mechanism CL can connect or the mode such as be threaded realizes by riveted joint, buckle.Preferably, shell engaging mechanism CL uses buckle to connect and realizes, and the direction of charging portion 4 can locate and can adjust by changing clamping contraposition position front cover portion 10A to easy accessibility on the one hand on the other hand, accurately.Fig. 2 a is combination brake switch and proporting in the valve pump shown in Fig. 1 and the three-dimensional view of valve tubular portion, and Fig. 2 b is the cross section view of this combination brake switch and proporting and valve tubular portion.As shown in the figure, combination brake switch and proporting 1 comprises discharging guide portion 11, charging guide portion 12 and supporting portion 13.
Discharging guide portion 11 makes the inner space of combination brake switch and proporting 1 and the inner space unilaterally connected of discharging portion 3,, can make material enter into the inner space of discharging portion 3 through discharging guide portion 11 from the inner space of combination brake switch and proporting 1, and can prevent that material from entering into the inner space of combination brake switch and proporting 1 from the inner space of discharging portion 3.
Charging guide portion 12 makes the inner space of combination brake switch and proporting 1 and the inner space unilaterally connected of charging portion 4,, can make material enter into the inner space of combination brake switch and proporting 1 through charging guide portion 12 from the inner space of charging portion 4, and can prevent that material from entering into the inner space of combination brake switch and proporting 1 from the inner space of discharging portion 3.
The supporting effect to charging guide portion 11 and charging guide portion 12 can be played in supporting portion 13.On the one hand, in valve pump work process, charging guide portion 11 and charging guide portion 12 can be subject to the longitudinally active force of (as the longitudinal direction in Fig. 2 b), the bearing of trend of supporting portion 13 is parallel to this longitudinal direction, therefore can be for charging guide portion 11 and charging guide portion 12 provide support on this longitudinal direction; On the other hand, supporting portion 13 has certain length on its bearing of trend, between the plane that therefore can contact in the open part of charging guide portion 12 and valve pipe 2 and supporting portion 13, forms a space C.Space C provides space for the deformation of charging guide portion 12.
Because supporting portion 13 has opening 131, thereby space C is communicated with the inner space A of combination brake switch and proporting 1.Alternatively, supporting portion 13 can have one or more opening 131, and this opening 131 can take different shapes, for example, and the perforation forming along the Normal direction of supporting portion 13.
As depicted in figs. 1 and 2, the inner space A of combination brake switch and proporting 1 and the inner space B of the scalable part of valve pipe 2 are communicated with.Therefore, space C also belongs to a part for pump chamber 5.Like this, pump chamber 5 has just comprised the inner space A of combination brake switch and proporting 1, the inner space B of valve pipe 2 and space C.Supporting portion 13 can have central shaft symmetrical structure.
Valve pipe 2 comprises valve tube opening part 21 and valve tube body part 22.Valve tube opening part 21 and valve tube body part 22 are integral type structure, and valve tube body part 22 exchanges material by valve tube opening part 21 and the space outside valve pipe 2.
Valve tube opening part 21 has formed two circular opens of the different-diameter being interconnected.Wherein, the diameter of the circular open R1 that diameter is larger is greater than the maximum outside diameter of combination brake switch and proporting 1, and its degree of depth (corresponding to the aforementioned longitudinal direction in Fig. 2 b) matches with the height of supporting portion 13, thereby the supporting portion of combination brake switch and proporting 1 13 is put in the inner, and make combination brake switch and proporting 1 in projection in the radial direction falls into its radial plane.In Fig. 2 a and Fig. 2 b, the degree of depth of the circular open R1 that described diameter is larger equals the height of supporting portion 13, and in other example, the degree of depth of circular open R1 also may be greater than or less than the height of supporting portion 13.
The less circular open R2 of diameter of valve tube opening part 21 has the diameter that is less than supporting portion 13 external diameters.Valve tube opening part 21 can provide support to supporting portion 13 like this, to realize the supporting effect of supporting portion 13.In Fig. 2 b, the diameter of the circular open R2 that the diameter of valve tube opening part 21 is less is less than the external diameter of supporting portion 13, but be greater than the internal diameter of supporting portion 13, can make like this this circular open larger, be difficult for causing the motion bottleneck of material from the inner space B of valve pipe 2 to the inner space A of combination brake switch and proporting 1.Alternatively, the diameter of the circular open R2 of valve tube opening part 21 also can be equal to or less than the internal diameter of supporting portion 13.
Valve tube body part 22 is shunk or is extended under the effect of aforementioned driving mechanism, and material is pressed into space A from space B, or material is sucked to space B from space C.This shrinking structure can not produce the friction with other assembly, thereby is optimized working life yet.Consider the aforementioned structure of valve pipe 2, if by valve tube opening part 21 and 22 global analyses of valve tube body part, the space B being interconnected so and space C can be considered the same space, that is to say, when valve tube body part 22 is compressed, the material of space B and space C is pressed into space A; When valve tube body part 22 is extended, the material of charging guide portion 12 outsides is drawn into space C and space B.
Alternatively, valve pipe 2 can also comprise fore-set 23.Fore-set 23 is arranged in the inner space B of valve pipe 2.The bottom of fore-set 23 is fixedly connected with the bottom inside of valve tube body part 22.In the time that valve pump sucks material, fore-set 23, with the elongation campaign of valve tube body part 22, plays agitaion to the material that enters valve pipe 2.For the thick liquid materials such as liquid detergent, this agitaion can reduce liquid detergent viscosity and change the impact on flow especially, ensures that liquid detergent, with stable flow output, has stronger adaptability for winter and summer liquid detergent stickiness difference.
Combination brake switch and proporting 1 and valve pipe 2 can be discrete assemblies.Shown in Fig. 1, the position that the front cover portion 10A of valve pump casing can fixed combination valve 1.Particularly, the counter structure interference fit of the excircle of charging guide portion 12 and front cover portion 10A, the upper-end surface of charging guide portion 12 is offseted with the plane contact that matches of front cover portion 10A under the effect of supporting portion 13, move upward thereby can limit combination brake switch and proporting 1, and can play plane sealing effect; The supporting portion 13 of combination brake switch and proporting 1 has aforesaid contact and supporting relation with the valve tube opening part 21 of valve pipe 2, moves downward thereby can limit combination brake switch and proporting 1.
Alternatively, combination brake switch and proporting 1 also has boss part 14, as shown in Figure 1, Figure 2 shown in a, Fig. 2 b and Fig. 3.This boss part 14 can embed the counter structure of front cover portion 10A, strengthens fixing combination brake switch and proporting 1.The groove forming between boss part 14 and charging guide portion 12 can play anticreep and axially locating effect.Adapt with the axially symmetric structure of combination brake switch and proporting 1, boss part 14 can be circular boss structure.
As previously mentioned, the cooperating structure of the main body 10B of valve pump casing inner side can be realized the position of valve pipe 2 is fixed by the valve tube opening part 21 of standing valve pipe 2.
According to other embodiment of the present utility model, combination brake switch and proporting 1 and valve pipe 2 can be also integrated.
Fig. 3 is the three-dimensional view of the combination brake switch and proporting in Fig. 2 a and Fig. 2 b.As previously mentioned, combination brake switch and proporting 1 comprises discharging guide portion 11, charging guide portion 12 and supporting portion 13.As shown in Figure 3, the top of discharging guide portion 11 is that valve nozzle structure, the bottom of flexible flat shape are to be communicated with by the transition structure of a flat taper between columnar nozzle structure, valve nozzle structure and nozzle structure.This structure of discharging guide portion 11 can realize material from the inner space of combination brake switch and proporting 1 one-way conduction to space outerpace.In the time that the pressure of the material of discharging guide portion 11 inside acquires a certain degree, can make flexible valve nozzle that certain deformation occurs, and open, thereby allow material output.The slit opening structure of the transition structure of columnar nozzle structure, flat taper and valve nozzle matches, and can increase the extrusion pressure of material.
In Fig. 3, the slit opening structure of valve nozzle is positioned at the top of discharging guide portion 11, and alternatively, this slit opening also can be arranged at the other parts of discharging guide portion 11, for example side.
Charging guide portion 12 is down umbrella shape, and is arranged on the nozzle structure bottom of discharging guide portion 11.Charging guide portion 12 has central shaft symplex structure, and its central shaft overlaps with the symmetry axis of discharging guide portion 11, and charging guide portion 12 has the through-hole structure being connected with the nozzle structure of discharging guide portion 11.Can there is repeated deformation because it is flexible in the edge of guide portion 12, thereby realize the function of one-way valve.
Supporting portion 13 is arranged on charging guide portion 12 bottoms.As shown in the figure, supporting portion 13 can comprise multiple stiffening ribs, and the interval between stiffening rib has formed aforesaid opening 131, as inner space and one of outside passage being communicated with of combination brake switch and proporting 1.
Discharging guide portion 11, charging guide portion 12, supporting portion 13 and optional boss part 14 can be discrete parts, form combination brake switch and proporting 1 by assembling.Preferably, discharging guide portion 11, charging guide portion 12, supporting portion 13 and boss part 14 can be also integrated.Can make by mold integral.This integrative-structure, due to the physical connection without between discharging guide portion 11 and charging guide portion 12 and charging guide portion 12 and supporting portion 13, can be realized better connection and sealing effect.Combination brake switch and proporting 1 can be made with flexible (flexible) material monolithic.
Combination brake switch and proporting 1 or its unitary part (discharging guide portion 11, charging guide portion 12 and supporting portion 13) can be made up of one or more in following material: natural rubber, butyl rubber, styrene butadiene rubber, polyisoprene, ethylene, propylene, silicone, nitrite rubber, chlorination nitrite rubber, ethylene propylene diene rubber, Fluorosilicone elastomers, fluorocarbon elastomer etc.
Fig. 4 a is the cross section view of the valve pipe in Fig. 2 a and Fig. 2 b.As shown in Fig. 4 a, fore-set 23 can have irregular cylindrical shape, and for example, up-thin-low-thick cylindrical shape, can strengthen stirring action like this.Meanwhile, fore-set 23 also can have certain diameter, to increase and the area of contact of material, strengthens stirring action, but also can not take too much the inner space of valve tube body part 22, affects the amount that valve pipe 2 stores material.In addition, preferably, fore-set 23 inner hollow, material can't enter the inside of fore-set 23.This hollow structure can reduce the quality of fore-set 23, reduce compression and stretching valve pipe 2(valve tube body part 22) operating load.
Within fore-set 23 can be installed on valve tube body part 22, also can be one-body molded with valve tube body part 22.If fore-set 23 is one-body molded with valve tube body part 22, can there be better connection and sealing effect.Equally, valve pipe 2 can be also integrated on the whole.
Fig. 4 b shows the example of the another kind of structure of valve pipe 2.As shown in Figure 4 b, fore-set 23 is one-body molded with valve tube body part 22, and in fact fore-set 23 becomes a part for the outer wall of valve tube body part 22.This one-time formed manufacture, can remove the step that fore-set 23 is installed from, also can have better sealing and be connected effect.
Fig. 5 is the valve pump of Fig. 1 work schematic diagram in outside discharging process.In the time of outside discharging, the valve tube body part 22 of valve pipe 2 is compressed, be stored in the inner space A that material in valve tube body part 22 inner space B is pressed into combination brake switch and proporting 1, and further the valve nozzle of the discharging guide portion 11 by combination brake switch and proporting 1 enters into discharging portion 3, thereby to the outside output of valve pump.
Because the charging guide portion 12 of combination brake switch and proporting 1 is subject to the restriction of charging portion 4 outer walls, can not be to the direction of charging portion 4 (in Fig. 5 vertically upward direction) Bending Deformation, therefore the material in the C of space can not enter into charging portion 4 by charging guide portion 12, and this is the effect of charging guide portion 12 one-way conductions namely.
In Fig. 5, between charging guide portion 12 and the inner space of charging portion 4, can have inner space D.Corresponding to the circular open of charging guide portion 12, inner space D also has annular shape.Thus, in the time that the body portion 22 of valve pipe 2 shrinks, material is pressed into space A and C from space B, but can not enter into space D, thereby can not enter into charging portion 4.Inner space D also can adopt other shape.For example, when charging guide portion 12 is semi-circular or other one-sided configuration, inner space D also has the shapes such as semi-circular.
The fore-set 23 of valve pipe 2, after valve tube body part 22 is shunk, can all still be stayed in the inner space B of valve pipe 2, also can partly enter the inner space A of combination brake switch and proporting 1, but not contact with the inwall of combination brake switch and proporting 1, prevents combination brake switch and proporting 1 to cause unnecessary extruding.
Fig. 6 is the valve pump of Fig. 1 work schematic diagram in inside fill process.In the time of inside charging, the valve tube body part 22 of valve pipe 2 is extended, form negative pressure at inner space B, thereby make also to form negative pressure in the inner space A that is communicated with space B and C, but open because this negative pressure of valve nozzle structure of discharging guide portion 11 can not make this valve nozzle, now inner space A is not communicated with the inner space of discharging portion 3 thus.Under the effect of negative pressure, the edge of charging guide portion 12 can downward deformation bending (deflection), thereby the material of charging portion 4 inner spaces (alternatively, through space D) enters into space C, then enters into the inner space B of the valve tube body part 22 of valve pipe 2.Same, the charging guide portion 12 of combination brake switch and proporting 1 can be loop configuration, can be also one-sided configuration, all can serve as the unidirectional pilot valve of charging portion 4.
Fig. 7 a is according to the cross section view of the utility model embodiment's another kind of valve pump, and Fig. 7 b is the three-dimensional appearance view of this valve pump.Mainly be with the valve pump difference of Fig. 1, in the valve pump of Fig. 7 a and Fig. 7 b, the mouth of pipe or the pipeline of discharging portion 3 and charging portion 4 are parallel.This parallel structure can realize and the docking of exterior line better, also can save space.In addition, rubber stopper 9 is used for filling up the auxiliary hole staying after processing, plays seal action.
From Fig. 7 b, also can find out front cover portion 10A, main body 10B and the shell engaging mechanism CL of aforesaid valve pump casing.In the scheme shown in Fig. 7 b, the mode that shell engaging mechanism CL has adopted buckle to connect.As previously mentioned, the mode that buckle connects can make in the time that front cover portion 10A is installed, to adjust contraposition position, thereby changes the spatial position of discharging portion 3 and charging portion 4.
Fig. 8 is the valve pump of Fig. 7 a and the 7b work schematic diagram in outside discharging process.Fig. 8 is identical with the working principle shown in Fig. 5.In the time of outside discharging, the valve tube body part 22 of valve pipe 2 is compressed, be stored in the inner space A that material in valve tube body part 22 inner space B is pressed into combination brake switch and proporting 1, and further the valve nozzle of the discharging guide portion 11 by combination brake switch and proporting 1 enters into discharging portion 3, thereby to the outside output of valve pump.
Fig. 9 is the valve pump of Fig. 7 a and the 7b work schematic diagram in inside fill process.Fig. 9 is identical with the working principle shown in Fig. 6.In the time of inside charging, the valve tube body part 22 of valve pipe 2 is extended, form negative pressure at inner space B, thereby make also to form negative pressure in the inner space A that is communicated with space B and C, but open because this negative pressure of valve nozzle structure of discharging guide portion 11 can not make this valve nozzle, now inner space A is not communicated with the inner space of discharging portion 3 thus.Under the effect of negative pressure, the edge of charging guide portion 12 can downward deformation bending (deflection), thereby the material of charging portion 4 inner spaces (alternatively, through space D) enters into space C, then enters into the inner space B of the valve tube body part 22 of valve pipe 2.
Figure 10 is according to the sectional view of the combination brake switch and proporting of another valve pump of the utility model embodiment and valve tubular portion.Valve system shown in Figure 10 (as previously mentioned, comprise combination brake switch and proporting and valve pipe) compared with the valve system shown in Fig. 2 b, the main distinction is the structure of valve pipe 2, more specifically, be that the structure of open part 21 of valve pipe 2 is (in Figure 10, than Fig. 2 b, combination brake switch and proporting 1 has rotated 90 degree, but structure is identical).Contrast Figure 10 and Fig. 2 b, the diameter of the circular open R1 that the diameter of the open part 21 of valve pipe 2 is larger is less than the maximum outside diameter (being also the external diameter of charging guide portion 12) of combination brake switch and proporting 1.This structural design can reduce the hollow space of the open part 21 of valve pipe 2, improves the support strength of open part 21, also can make mass flow more stable.
Figure 11 is the valve pump of Figure 10 schematic partial cross-sectional view in the time of outside discharging.As previously mentioned, in the time that the valve tube body part 22 of valve pipe 2 is shunk, carry out discharging, now charging guide portion 12 props up the front cover portion 10A of valve pump case, as shown in figure 11.This discharging process is identical with situation shown in Fig. 5.
Figure 12 is the valve pump of Figure 10 schematic partial cross-sectional view in the time of inside charging.As previously mentioned, in the time that the valve tube body part 22 of valve pipe 2 is extended, carry out charging, now form negative pressure at inner space B, thereby in the inner space C that makes to be communicated with space B, also form negative pressure, the edge of charging guide portion 12 can downward deformation bending (deflection), as shown in figure 12.Due in the scheme shown in Figure 10~Figure 12, the diameter of charging guide portion 12 is greater than the diameter of the circular open R1 of the open part 21 of valve pipe 2, in order to prevent that the edge of charging guide portion 12 from covering the appropriate section of circular open R1, make material can not enter swimmingly inner space C, can take certain measure.For example, strengthen the rigidity at charging guide portion 12 edges, reduce its deflection, make the appropriate section that it can cap seal circular open R1 in the time of charging.Circular open R3 can also be set above circular open R1, and make the diameter of circular open R3 be provided so that the appropriate section that charging guide portion 12 can cap seal circular open R1 in the time of charging.Consider in circular open R3 Vertical direction in the drawings and can have certain degree of depth, therefore, its diameter can be greater than, be slightly larger than, equal to be even slightly less than the diameter of charging guide portion 12.Preferably, at the open part 21 of valve pipe 2, circular open R3 is set, as shown in Figure 10~Figure 12.Conventionally processing circular open R3 more easily realizes than the rigidity of controlling charging guide portion 12 edges by processing.
Can be liquid, gas, particulate or powdery solid according to the material of the utility model embodiment's valve pump institute pumping, or be their combination.For example, laundry material, comprises liquid detergent, thimerosal, washing powder etc. or their combination.
According to scheme of the present utility model, combination brake switch and proporting 1 can have more than one discharging guide portion 11, also can have more than one charging guide portion 12, and accordingly, valve pump can have more than one discharging portion 2, also can have more than one charging portion 4.Like this, according to the utility model embodiment's feed end mechanism, can realize with single valve arrangement the one-way conduction of discharging path and feed passageway; According to different embodiments, also can realize the one-way conduction of realizing multiple discharging paths and/or multiple feed passageways with single valve arrangement.So, can optimize installing space, this is particularly meaningful for pet-valve pump.
According to scheme of the present utility model, can be in several ways, such as, change the length of valve tube body part 22 length of corresponding adjustment linkage portion (bar) 6, or change the volume of fore-set 23, regulate the volume of inner space B, thereby in not changing other structure of valve pump and physical size, can meet different feeding quantity/reinforced traffic demand.Again for example, in the inside of the main body 10B of valve pump casing, certain redundant space is set, increases the volume adjustable extent of valve tube body part 22 and the stroke range of linkage rod 6, so can increase the Applicable scope of feeding quantity/reinforced flow.
According to scheme of the present utility model, feed end mechanism has the valve tubular construction matching with valve arrangement, and this valve pipe has Collapsible structure, thereby has saved friction member, is difficult for producing noise, and the life-span is also longer.
The above is only exemplary embodiment of the present utility model, but not for limiting protection domain of the present utility model, protection domain of the present utility model is determined by appended claim.

Claims (21)

1. a feed end mechanism, is characterized in that, comprises valve (1) and valve pipe (2), wherein,
Described valve (1) comprising:
Discharging guide portion (11), the inner space that makes described feed end mechanism with go out material space one-way conduction;
Charging guide portion (12), makes inner space and the charging space one-way conduction of described feed end mechanism; With
Supporting portion (13), plays the supporting effect to described discharging guide portion (11) and described charging guide portion (12),
Described valve pipe (2) comprising:
Valve tube opening part (21), it matches with described supporting portion (13), realizes the material exchange of the inner space (B) of described valve pipe (2) and the inner space (A) of described valve (1); With
Valve tube body part (22), it has telescopic structure, can outwards extrude described material from the inner space (B) of described valve pipe (2), and inwardly suck described material from the inner space (B) of described valve pipe (2).
2. feed end according to claim 1 mechanism, is characterized in that, described discharging guide portion (11), and described charging guide portion (12) and described supporting portion (13) they are integrated by flexible material.
3. feed end according to claim 1 mechanism, it is characterized in that, the top of described discharging guide portion (11) is the valve nozzle structure of flexible flat shape, and bottom is columnar nozzle structure, between valve nozzle structure and nozzle structure, is communicated with by the transition structure of a flat taper.
4. feed end according to claim 1 mechanism, is characterized in that, described charging guide portion (12) is down umbrella shape, and is arranged on the bottom of the nozzle structure of described discharging guide portion (11).
5. feed end according to claim 1 mechanism, is characterized in that, described supporting portion (13) comprise one or more openings (131) for material turnover exchange.
6. feed end according to claim 5 mechanism, is characterized in that, described opening (131) is the interval between perforation or adjacent stiffening rib.
7. feed end according to claim 1 mechanism, it is characterized in that, described valve (1) also comprises: boss part (14), this boss part (14) is arranged between described discharging guide portion (11) and described charging guide portion (12), for fixing described valve (1).
8. feed end according to claim 7 mechanism, it is characterized in that, described discharging guide portion (11), described charging guide portion (12), described supporting portion (13) and described boss part (14) are integrated by flexible material.
9. feed end according to claim 1 mechanism, it is characterized in that, described valve tube opening part (21) at least forms two circular opens that diameter is different, wherein, the diameter of the first circular open (R1) that diameter is larger is greater than the external diameter of described charging guide portion (12), and the diameter of less the second circular open (R2) of diameter is less than the external diameter of described supporting portion (13).
10. feed end according to claim 9 mechanism, is characterized in that, the height of the degree of depth of described the first circular open (R1) and described supporting portion (13) matches.
11. feed end according to claim 1 mechanisms, is characterized in that, described valve tube opening part (21) forms three circular opens from top to bottom successively, wherein,
The diameter of the first circular open (R3) is greater than the external diameter of described charging guide portion (12);
The diameter of the second circular open (R1) is less than the external diameter of described charging guide portion (12); And
The diameter of the 3rd circular open (R2) is less than the external diameter of described supporting portion (13).
12. feed end according to claim 1 mechanisms, it is characterized in that, described valve pipe (2) also comprises fore-set (23), this fore-set (23) is some or all of is placed in described valve tube body part (22) inside, and the lower end of this fore-set (23) is arranged at described valve tube body part (22) bottom.
13. feed end according to claim 12 mechanisms, is characterized in that, described fore-set (23) has irregular cylindrical shape.
14. 1 kinds of valve pumps, is characterized in that, comprising: according to the feed end mechanism described in any one in claim 1-13, discharging portion (3), charging portion (4), linkage portion (6), cam (7) and motor (8), wherein
Described discharging portion (3) and described charging portion (4) respectively with the material pipeline connection of described valve pump outside, and realize the pump chamber (5) of described valve pump and the one-way conduction of described discharging portion (3) by described discharging guide portion (11), realized the one-way conduction of described pump chamber (5) and described charging portion (4) by described charging guide portion (12);
One end of described linkage portion (6) is connected with described cam (7), described cam (7) drives rotation by the output shaft of described motor (8), thereby rotatablely moving of motor (8) output shaft is converted to the straight reciprocating motion of linkage portion (6), the other end of described linkage portion (6) is fixedly connected with described valve pipe (2), thereby along with the straight reciprocating motion of described linkage portion (6), described valve pipe (2) shrinks or extends.
15. valve pumps according to claim 14, is characterized in that, described discharging portion (3) and described charging portion (4) are the combinations of interface, pipeline or interface and pipeline.
16. valve pumps according to claim 14, is characterized in that, described discharging portion (3) is mutually vertical or parallel with described charging portion (4).
17. 1 kinds of valve pumps, is characterized in that, comprising: valve (1), and valve pipe (2), discharging portion (3), charging portion (4), linkage portion (6), cam (7) and motor (8), wherein,
Described discharging portion (3) and described charging portion (4) respectively with the material pipeline connection of described valve pump outside, and realize the pump chamber (5) of described valve pump and the one-way conduction of described discharging portion (3) by described valve (1), realized the one-way conduction of described pump chamber (5) and described charging portion (4) by described valve (1);
One end of described linkage portion (6) is connected with described cam (7), described cam (7) drives rotation by the output shaft of described motor (8), thereby rotatablely moving of motor (8) output shaft is converted to the straight reciprocating motion of linkage portion (6), the other end of described linkage portion (6) is fixedly connected with described valve pipe (2), thereby along with the straight reciprocating motion of described linkage portion (6), described valve pipe (2) shrinks or extends.
18. valve pumps according to claim 17, is characterized in that, described valve pump is installed in washing machine, for the material of feeding laundry use.
19. 1 kinds for supplying with the valve pump of material, it is characterized in that, comprise: valve (1), valve pipe (2), discharging portion (3), charging portion (4), linkage portion (6), cam (7), motor (8) and housing parts, wherein
Described discharging portion (3) and described charging portion (4) respectively with the material pipeline connection of described valve pump outside, and realize the pump chamber (5) of described valve pump and the one-way conduction of described discharging portion (3) by described valve (1), realized the one-way conduction of described pump chamber (5) and described charging portion (4) by described valve (1);
One end of described linkage portion (6) is connected with described cam (7), described cam (7) drives rotation by the output shaft of described motor (8), thereby rotatablely moving of motor (8) output shaft is converted to the straight reciprocating motion of linkage portion (6), the other end of described linkage portion (6) is fixedly connected with described valve pipe (2), thereby along with the straight reciprocating motion of described linkage portion (6), described valve pipe (2) shrinks or extends;
Described housing parts comprises front cover portion (10A) and main body (10B), the two is realized and being connected by shell engaging mechanism (CL), wherein, form described discharging portion (3) and described charging portion (4) at described front cover portion (10A), and described front cover portion (10A) provides support and locates for described valve (1); The space mounting that described main body (10B) limits has the assemblies such as described valve pipe (2), described linkage portion (6), described cam (7) and described motor (8), described main body (10B) provides support and locates for described valve pipe (2), and is the flexible space that provides of described valve pipe (2).
20. valve pumps according to claim 19, is characterized in that, described shell engaging mechanism (CL) is realized the connection to described front cover portion (10A) and described main body (10B) by snap connection means.
21. 1 kinds of valve pumps, is characterized in that, comprising: according to the feed end mechanism described in any one in claim 1-13.
CN201420057381.2U 2013-07-11 2014-01-29 Charging valve mechanism and valve pump applying same Expired - Lifetime CN203906259U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420057381.2U CN203906259U (en) 2013-07-11 2014-01-29 Charging valve mechanism and valve pump applying same

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
CN201320411447 2013-07-11
CN201320411447.9 2013-07-11
CN201320412668.8 2013-07-11
CN201320412668 2013-07-11
CN201320412527 2013-07-11
CN201320412527.6 2013-07-11
CN201420057381.2U CN203906259U (en) 2013-07-11 2014-01-29 Charging valve mechanism and valve pump applying same

Publications (1)

Publication Number Publication Date
CN203906259U true CN203906259U (en) 2014-10-29

Family

ID=50526041

Family Applications (4)

Application Number Title Priority Date Filing Date
CN201420057381.2U Expired - Lifetime CN203906259U (en) 2013-07-11 2014-01-29 Charging valve mechanism and valve pump applying same
CN201420057082.9U Expired - Lifetime CN203880159U (en) 2013-07-11 2014-01-29 Valve, feeding mechanism applying same and valve pump applying feeding mechanism
CN201410043480.XA Active CN103758747B (en) 2013-07-11 2014-01-29 Feed end mechanism and apply the valve pump of this feed end mechanism
CN201420057062.1U Expired - Lifetime CN203906258U (en) 2013-07-11 2014-01-29 Valve tube, charging valve mechanism applying valve tube, valve pump applying charging valve mechanism

Family Applications After (3)

Application Number Title Priority Date Filing Date
CN201420057082.9U Expired - Lifetime CN203880159U (en) 2013-07-11 2014-01-29 Valve, feeding mechanism applying same and valve pump applying feeding mechanism
CN201410043480.XA Active CN103758747B (en) 2013-07-11 2014-01-29 Feed end mechanism and apply the valve pump of this feed end mechanism
CN201420057062.1U Expired - Lifetime CN203906258U (en) 2013-07-11 2014-01-29 Valve tube, charging valve mechanism applying valve tube, valve pump applying charging valve mechanism

Country Status (1)

Country Link
CN (4) CN203906259U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103758747A (en) * 2013-07-11 2014-04-30 常州乐士雷利电机有限公司 Feeding valve mechanism and valve pump using same

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105297350A (en) * 2014-07-15 2016-02-03 无锡小天鹅股份有限公司 Washing machine, releasing pump thereof and control method of washing machine
CN104847634A (en) * 2015-05-14 2015-08-19 无锡好力泵业有限公司 Respiratory pump
CN105464919B (en) * 2016-01-20 2017-12-26 江苏雷利电机股份有限公司 The automatic jettison system of pump and the application pump
CN107780159B (en) * 2016-08-31 2023-08-18 无锡小天鹅电器有限公司 Detergent delivery system for laundry treatment device and laundry treatment device
JP7155874B2 (en) * 2017-12-11 2022-10-19 セイコーエプソン株式会社 printer
CN108505290B (en) * 2018-05-04 2023-12-26 佛山科学技术学院 Automatic device of puting in of laundry detergent
CN110904638A (en) * 2018-09-18 2020-03-24 青岛海尔滚筒洗衣机有限公司 Washing machine drainage noise reduction structure and washing machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10200911A1 (en) * 2002-01-12 2003-10-09 Manfred Max Rapp Check valve with spring tongue
ES2206013B1 (en) * 2002-01-31 2005-06-16 Sofiplast S.A. IMPELLENT ASPIRING PUMP AND CORRESPONDING USES.
CN201574917U (en) * 2009-11-23 2010-09-08 杭州大潮石化设备有限公司 Pump head combination valve for reciprocating pumps
PL2477733T3 (en) * 2010-07-30 2014-12-31 Total Res & Technology Feluy Process for supplying catalyst to a polymerization reactor
CN201786643U (en) * 2010-09-29 2011-04-06 中国有色(沈阳)泵业有限公司 Diaphragm pump through type inlet valve
CN202645987U (en) * 2012-03-23 2013-01-02 三一重工股份有限公司 Distribution valve for pumping system, pumping system and engineering machinery
CN102852754A (en) * 2012-09-27 2013-01-02 徐州天地重型机械制造有限公司 Ball valve type mortar pump
CN203906259U (en) * 2013-07-11 2014-10-29 常州乐士雷利电机有限公司 Charging valve mechanism and valve pump applying same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103758747A (en) * 2013-07-11 2014-04-30 常州乐士雷利电机有限公司 Feeding valve mechanism and valve pump using same
CN103758747B (en) * 2013-07-11 2016-03-23 江苏雷利电机股份有限公司 Feed end mechanism and apply the valve pump of this feed end mechanism

Also Published As

Publication number Publication date
CN203906258U (en) 2014-10-29
CN203880159U (en) 2014-10-15
CN103758747A (en) 2014-04-30
CN103758747B (en) 2016-03-23

Similar Documents

Publication Publication Date Title
CN203906259U (en) Charging valve mechanism and valve pump applying same
CN108150595A (en) A kind of hydraulic bushing
CN105246372A (en) Rotary dispenser-type cosmetics container
JP6720404B2 (en) Fluid device and its buffer tank
CN202789454U (en) Mechanical diaphragm type metering pump
CN201102700Y (en) Squeeze head pump structure of bottle
CN106542487B (en) A kind of wine lance
CN109573308A (en) Vacuum pumping pressure type packaging bottle
JP5715990B2 (en) Diaphragm pump
CN204642561U (en) A kind of liquid quantitative squeezer
CN205605417U (en) A valve, charging valve mechanism and valve pump for supplying with material
CN209539802U (en) A kind of pressure equaliser and the sucker using it
CN205291003U (en) Mechanical arm
CN203214477U (en) Axial flow movement type air cylinder
CN204372252U (en) Flow control valve
CN209228752U (en) A kind of hydraulic cylinder
CN218932634U (en) Washing liquid storage box dismounting structure of washing machine
CN203681496U (en) Windscreen washer filling pipe with ventilation channel
CN214945398U (en) Buffer device of hydraulic oil cylinder of vulcanizing machine
CN203948376U (en) A kind of advance and retreat cylinder structure
CN216060316U (en) Swing type switch emulsion pump
CN219813429U (en) Multi-head hose
CN203730261U (en) Diaphragm fixing structure for booster pump
CN104943973A (en) Liquid quantitative extrusion device
US11673153B2 (en) Two-way pumping device for consumption of residual amount of liquid

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: Wujin District 213011 of Jiangsu Province, Changzhou City Yaoguan Tong Road No. 19

Patentee after: JIANGSU LEILI MOTOR Co.,Ltd.

Address before: 213011 Qian Qian village, Guan yuan town, Wujin District, Jiangsu, Changzhou

Patentee before: Changzhou Leshi Leili Motor Co.,Ltd.

CX01 Expiry of patent term

Granted publication date: 20141029

CX01 Expiry of patent term