CN201080311Y

CN201080311Y - Modified pressure head pump structure

Info

Publication number: CN201080311Y
Application number: CNU2007201508971U
Authority: CN
Inventors: 曾森立
Original assignee: XUTONG MOULD CO Ltd
Current assignee: XUTONG MOULD CO Ltd; HSIH TUNG TOOLING CO Ltd
Priority date: 2007-07-12
Filing date: 2007-07-12
Publication date: 2008-07-02
Anticipated expiration: 2017-07-12

Abstract

The utility model relates to an improved structure of a suction head pump. The improved structure mainly comprises a push tube, an inner tube, a stopping valve, and an outer tube, wherein the top part of the push tube is communicated with a head part, a shoulder part is arranged on the end surface at the bottom part of the push tube outward, and the push tube is communicated and connected with the inner tube; the bottom part of the inner tube adopts an annular bulging and a piston part is formed, a rid part is circularly arranged at the connection point of the inner tube and the piston part, a guiding hole penetrates through the position of the inner tube adjacent to the piston part, a plurality of through holes penetrate through the piston part, a stopping valve is nested on the tubular structure of the inner tube, and a muff coupling piece is assembled at the bottom end of the inner tube; a plurality of stopping pieces are arranged on the end surface at the bottom part of the stopping valve outward; the muff coupling piece is connected on the end surface at the bottom part of the inner tube, and an elastic component is assembled at the bottom end of the muff coupling piece; the push tube and the inner tube are installed inside the outer tube, a stopper part is arranged at the bottom part at the inner side of the outer tube, and the stopper part is used for clipping and stopping a bead body; the utility model can achieve optimum pumping effect through a barrier layer composed of inner solution and formed between the stopping valve and the piston part.

Description

Pressure head pump structure-improved

Technical field

The utility model relates to a kind of pressure head pump structure-improved, particularly relates to a kind ofly forming barrier layer between piston portion and block valve, to reach the best pressure head pump structure-improved that draws result of use.

Background technology

General liquid cleaning agent container, be to be set with a suction pipe in ladder pipe below, and above the ladder pipe, be set with a pipe lid and a spiral cover, be assembled in by spiral cover on the bottleneck of liquid cleaning agent container, the piston of packing in the ladder pipe again is equipped with the base that a bottom is a closed, and is provided with a through hole at its bottom side on it, be serially connected with in the base top again in one and take over, be connected with a nozzle by a upper connecting tube and should middlely take over the top; In addition in the little pipe end of ladder pipe below and be arranged in that a steel ball that must move up and down is inserted in the suction pipe top and the shop is equiped with a spring, and be inserted in above-mentioned base bottom above this spring; So piston is moved down by pushing nozzle, decontrol nozzle then, piston is moved in the spring ejection and produce suction, thereby make that steel ball pushes away the suction pipe mouth of pipe on the suction pipe top be positioned at ladder pipe below, and make emulsion by sucking in the ladder pipe towards the top down, when pushing nozzle once again, piston is to move down, and emulsion can be extruded by nozzle by taking in the inflow of base through hole;

As No. the 091200596th, TaiWan, China patent application, piston tube in " Emulsion liquid pump structural improvement " its cylinder barrel is that the cylinder end cap by the cylinder barrel exit end stretches out the hole and passes, and the termination group has the pressure head of side direction drain pipe on the piston tube, press again between head and cylinder end cap and be provided with relative screw part, and be folded with between cylinder end cap and cylinder barrel ring shoulder the annular spiral cover, cylinder barrel is assembled on the bottleneck of container by spiral cover, piston tube is provided with backstop in addition, then be provided with backstop in the tail pipe of cylinder barrel, and the suction pipe at the bottom of extending in continuing on the tail pipe bottle, be primarily characterized in that: the elastic component in the cylinder barrel is to be made as the elastic force pipe, and piston tube is to cooperate the elastic force pipe to be divided into two sections of the interior built-in pipes of the outer piston tube of cylinder barrel and cylinder barrel, make piston tube and built-in pipe have the blocking protuberance and the blocking recess of relative card fastening position, be that piston tube and built-in pipe are preset as the sliding state of telescopic, when pressing head to be the uncork state that separates with the screw part of cylinder end cap, side actuating plunger pipe and built-in pipe are non-return card fastening position state, open to stretch and are placed between built-in pipe end and cylinder barrel bottom so that the elastic force pipe all is free state before uncork is used;

Yet, though the existing design design can reach the effect of conveniently drawing container contents liquid, if but the content liquid of this container contains the form of particle, as the industrial emulsifiable paste of washing one's hands, have the mildy wash of frosted finish effect etc., then the outer tube of this pressure head and interior pipe are when using, and wall is vulnerable to the particle mill of content liquid and scrapes, and so then may produce the gap and can't driving fit, make this piston of compression draw the effect impairment of content liquid, lose its due effect; Even the higher shower emulsion of stickiness, existing design causes user's inconvenience for fear of drawing poor effect;

Because the defective that above-mentioned existing pressing head pump structure exists, the design people is based on being engaged in this type of product design manufacturing abundant for many years practical experience and expertise, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of later-model pressure head pump structure-improved, can improve general existing pressing head pump structure, make it have more practicality.Through constantly research, design, and, create the utility model that has practical value finally through after studying sample and improvement repeatedly.

Summary of the invention

The purpose of this utility model is, overcome the defective that existing pressing head pump structure exists, and provide a kind of later-model pressure head pump structure-improved, technical matters to be solved is that to make it can improve the existing structure inner wall surface thereof be worn and torn by content liquid, causing can't driving fit, content liquid is leaked, even can't draw disappearances such as content liquid smoothly, thereby be suitable for practicality more.

The purpose of this utility model and to solve its technical matters be to adopt following technical scheme to realize.According to a kind of pressure head pump structure-improved that the utility model proposes, it mainly comprises pipe, an ejector sleeve, a block valve and an outer tube in one, and wherein: pipe, ejector sleeve, block valve are to be installed in outer tube inside in this; Should interior pipe bottom be to be provided with a piston portion, this piston portion be to be equipped with open-work, and should be to be arranged with an elastic parts bottom the interior pipe, is to be arranged with the block valve on pipe in this; This block valve be wear be located on the pipe, and these block valve outer peripheral edges are to be the elastomeric structure of tool, make this block valve be fitted in the outer tube madial wall; This block valve bottom is to be provided with stop part, and this stop part is corresponding to the open-work setting; This ejector sleeve is in being installed on pipe and the block valve, and this ejector sleeve top is to be equipped with a head that is connected, and this ejector sleeve bottom is to connect with interior pipe box and be connected, this ejector sleeve be by head push or the elasticity of elastic parts pushes back, and axially move toward covering along ejector sleeve; Elastic parts ejector ram portion, the stop part driving fit inlay card of the open-work of piston portion and block valve forms a barrier layer, utilize this barrier layer to avoid between the piston portion and block valve of air admission outer tube madial wall, make between this piston portion, block valve and outer tube and keep air-tight state, reach the effect of well drawing.

The purpose of this utility model and solve its technical matters and can also be able to be further achieved by the following technical measures.

Aforesaid pressure head pump structure-improved, wherein said interior pipe bottom is to be equipped with a Coupling, by the setting of this Coupling, establishes the elastic parts of different size with group.

Aforesaid pressure head pump structure-improved, wherein said Coupling is integrally formed with piston portion.

Aforesaid pressure head pump structure-improved, wherein said piston portion top is to be provided with flank, these flank outer peripheral edges are for skewed, and this block valve bottom also is provided with cooresponding ramp-like configuration.

Aforesaid pressure head pump structure-improved, wherein said open-work madial wall is inclined, and these stop part outer peripheral edges are also inclined.

Aforesaid pressure head pump structure-improved is to be equipped with pore on the wherein said outer tube outer wall, by the setting of this pore, makes air be entered the inside and outside pressure of balance.

Aforesaid pressure head pump structure-improved, wherein said outer tube inside are to be provided with a pearl body, and this outer tube inside is to form a stopper, make this pearl body fastened by stopper, whereby to reach the effect of unidirectional non-return content liquid.

Aforesaid pressure head pump structure-improved, wherein said interior pipe are to be equipped with guide hole, and this guide hole is to enter head for content liquid.

Aforesaid pressure head pump structure-improved, wherein said ejector sleeve bottom are that ring is established protrusion formation one shoulder, and this shoulder is the effect for pushing and pressing block valve.

Aforesaid pressure head pump structure-improved, wherein said ejector sleeve are to be arranged in a stopper and to be communicated with the head socket, and this stopper is to be installed in outer covering, and by the setting of this enclosing cover, this head and stopper is installed on the container.

The utility model compared with prior art has tangible advantage and beneficial effect.Via as can be known above, in order to achieve the above object, the utility model mainly comprises pipe, a block valve and an outer tube in the ejector sleeve,, and wherein: this ejector sleeve top is to be connected with a head, this ejector sleeve bottom end face is to convex with a shoulder, and this ejector sleeve is to be communicated with to connect with interior pipe to establish; Should interior pipe bottom be that ring convexes into a piston portion, should interior pipe be to be equipped with flank with the piston portion junction, this flank is to be skewed setting, should interiorly manage adjacent piston portion and be equipped with guide hole, this piston portion is to be equipped with some open-works, this open-work madial wall is to be skewed setting, and should be to wear a block valve on the interior pipe tubular structure, and should interior pipe bottom be to organize to be provided with a Coupling; This block valve bottom end face is to convex with some stop parts, and this stop part is corresponding to the open-work setting, and these stop part outer peripheral edges are to be skewed setting corresponding to open-work, and this block valve bottom is that corresponding flank is skewed setting; This Coupling is a pipe bottom end face in being arranged in, and this Coupling bottom is that group is established an elastic parts; This outer tube inside is to be class's stratiform from top to bottom convergent is set, this ejector sleeve and in pipe be to be placed in the outer tube, these outer tube both sides are to be equipped with pore respectively, and this outer tube inside bottom is to be provided with a stopper, this stopper is in order to fasten a pearl body.

By technique scheme, the utility model pressure head pump structure-improved has following advantage at least:

Existing structure only is dependent on the airtight applying between piston and internal face, reaching the effect of drawing content liquid really, but easily because of particle paste emulsion and piston friction, causes driving fit really; The utility model is to utilize between this piston portion and block valve to be full of content liquid, and the stop part of the open-work of this piston portion and block valve is to adopt the certain driving fit of heeling condition, make the barrier layer that formation one is made of content liquid between this piston portion and block valve whereby, the utility model is to utilize this barrier layer to make this interior pipe keep air-tight state with outer tube, and because this barrier layer is to be made of content liquid, even this piston portion or block valve and outer tube contact position wearing and tearing scratch can't driving fit, the content liquid of this barrier layer is can fill up to scrape the damage place, keeps the air-tight state that does not leak; Moreover, Coupling of the present utility model is can be integrally formed in the piston portion of interior pipe, or adopt separation type and assemble, so be can be in response to cooperating the wide elastic parts of ccontaining Different Diameter, to be applicable to the outer tube of various sizes, it is less particularly to work as the outer tube caliber, and must use the wide elastic parts in big footpath the time, can avoid this piston portion if desire is assembled not foot phenomenon of the wide wall thickness that elastic parts causes in big footpath, utilize Coupling to be mounted on the setting of piston portion, so be to meet the wide elastic parts in big footpath, to reach the best effect of drawing; Moreover the utility model is that head is locked in stopper when unused state, and then Coupling is to fasten in outer tube, even inverted container does not also cause the content liquid adverse current to overflow; And this utility model inverted container when running condition owing to form barrier layer between piston portion and block valve, reaches the effect that prevents that the content liquid adverse current from overflowing equally;

In sum, the utlity model has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and more existing pressing head pump structure has the outstanding effect of enhancement, thus be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification sheets, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is the utility model pressure head pump structure-improved perspective exploded view.

Fig. 2 is block valve of the present utility model, interior pipe and Coupling perspective exploded view.

Fig. 3 is block valve of the present utility model, interior pipe and Coupling assembling generalized section.

Fig. 4 is the three-dimensional assembling of a utility model pressure head pump structure-improved scheme drawing.

Fig. 5 is that content liquid start generalized section is drawn in the utility model rising.

Fig. 6 is the utility model aspirated air start generalized section.

Fig. 7 is that the utility model presses down and extrudes content liquid start generalized section.

Fig. 8 is the utility model initial condition generalized section.

Fig. 9 is Fig. 8 inversion state generalized section.

Figure 10 is that the utility model used the state generalized section.

Figure 11 is Figure 10 inversion state generalized section.

Figure 12 is the block valve of the utility model second embodiment, interior pipe and Coupling assembling generalized section.

Figure 13 is the utility model second embodiment generalized section.

1: head 11: exit end

12: stopper 13: enclosing cover

2: ejector sleeve 21: shoulder

3: block valve 31: stop part

4: interior pipe 41: piston portion

42: guide hole 43: open-work

44: Coupling 45: elastic parts

46: flank 5: outer tube

51: pearl body 52: pore

53: stopper 6: container

7: barrier layer

The specific embodiment

For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its specific embodiment of pressure head pump structure-improved, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.

The utility model relates to a kind of pressure head pump structure-improved, sees also Fig. 1 to shown in Figure 4, and it mainly is to comprise an ejector sleeve 2, one interior pipe 4, one a block valve 3 and an outer tube 5, wherein:

This ejector sleeve 2 is to be a tubular structure, and these ejector sleeve 2 top end faces are to pass an enclosing cover 13 and a stopper 12 and be equipped with a head that is connected 1, and these ejector sleeve 2 bottom end faces are to convex with a shoulder 21, and these ejector sleeve 2 bottoms are to be communicated with to connect with interior pipe 4 to establish;

Should interior pipe 4 be tubular structures, pipe 4 bottoms be that ring convexes into a piston portion 41 in this, and this interior pipe 4 is to be equipped with flank 46 with piston portion 41 junctions, and this flank 46 is inclined; Should interiorly manage 4 tube wall adjacent piston portions 41 is that subtend is equipped with guide hole 42, this guide hole 42 is to be communicated with interior pipe 4, should interior piston portion 41 of managing 4 bottoms be to be equipped with some open-works 43, these open-work 43 madial walls are to be skewed setting, and should be to wear a block valve 3 on interior pipe 4 tubular structures, and should interior pipe 4 bottoms be to organize to be provided with a Coupling 44;

This block valve 3 is flat cyclic structurees, these block valve 3 outer peripheral edges are that ring is established formation rubber-like structure, elastic deformation by these block valve 3 outer peripheral edges, make this block valve 3 be able to fit really with outer tube 5 madial walls, these block valve 3 bottom end faces are to convex with some stop parts 31, this stop part 31 is to be provided with corresponding to open-work 43, and these stop part 31 outer peripheral edges are to be skewed setting corresponding to open-work 43; And these block valve 3 bottoms are the ramp-like configuration that are provided with corresponding flank 46, so when block valve 3 and piston portion 41 connect to the time be that inlay card combines fully;

This Coupling 44 is pipe 4 bottom end faces in being arranged in, and these Coupling 44 bottom end faces are the groove shape structures that are indent, and this Coupling 44 is to utilize the groove shape structural group of bottom indent to establish an elastic parts 45, and this elastic parts 45 fastens with outer tube 5 inboard bottoms;

This outer tube 5 is also to be tubular structure, these outer tube 5 inside are to be class's stratiform setting, the caliber of this outer tube 5 is convergents from top to bottom, and the maximum caliber of this outer tube 5 is greater than ejector sleeve 2 and interior pipe 4, then this ejector sleeve 2 and interior pipe 4 are to be placed in the outer tube 5, these outer tube 5 maximum diameter both sides end faces are to be equipped with pore 52 respectively, and these outer tube 5 minimum pipe inboards are to be provided with a stopper 53, this stopper 53 is in order to fasten a pearl body 51, make this pearl body 51 be placed in the outer tube 5 and fastened by stopper 53 and have unidirectional non-return effect, because pearl body 51 is to belong to known structure with the unidirectional non-return start of stopper 53, forgives this and repeats no more;

This head 1 is to pass stopper 12 and enclosing cover 13 and ejector sleeve to establish for 2 groups, and utilizes this enclosing cover 13 to be assembled on the container 6, and this head 1 is to be provided with an exit end 11 to be communicated with ejector sleeve 2; Should interior pipe 4 tops be to wear block valve 3 to establish for 2 groups with ejector sleeve, should interior pipe 4 bottoms be to connect to establish Coupling 44, this Coupling 44 is and elastic parts 45 windings, this elastic parts 45 is to fasten with outer tube 5 inboard tube walls, these outer tube 5 madial wall bottoms are to utilize stopper 53 to fasten pearl body 51, and this ejector sleeve 2, block valve 3, interior pipe 4 and Coupling 44 are all to be placed in outer tube 5 inside;

In order to do profit, by pushing head 1, make ejector sleeve 2 start down vertically, and pipe 4 downward starts in synchronous the drive, the shoulder 21 of this ejector sleeve 2 is to fasten block valve 3, makes this block valve 3 fit in outer tube 5 and downward synchronous shift, and make this elastic parts 45 be defeated institute's deformation, and be positioned at pipe 4 in-to-in content liquid accommodation spaces by compression, flow out into guide hole 42 by the open-work 43 of piston portion 41, and then overflow by head 1; Disappear when pushing head 1 power, this elastic parts 45 is to shore Coupling 44 by the elasticity power of recovering deformation, this Coupling 44 is pipe 4 upwards liftings in the pushing and pressing, so this piston portion 41 is upwards synchronous and replaces block valve 3, because the open-work 43 of this piston portion 41 and the stop part 31 of block valve 3 are to adopt cooresponding skewed setting, this open-work 43 is that inlay card is airtight each other with stop part 31, whereby, 3 on this piston portion 41 and block valve are the barrier layers 7 that formation one is made of content liquid, utilize this barrier layer 7 to make this interior pipe 4 keep air-tight state with outer tube 5, even this piston portion 41 or block valve 3 and the wearing and tearing of outer tube 5 contact positions can't driving fits, by the setting of barrier layer 7, still can keep air-tight state and not leak outside.

Please refer to shown in the illustrative view of Fig. 5 to Fig. 7, at first please watch shown in Figure 5, the user pushes head 1 process and decontrol, this elastic parts 45 is pushing and pressing Couplings 44, interior pipe 4, and piston portion 41 upwards, make pressure minimizing cause upwards attractive force because this piston portion 41 is expanded with the accommodation space of outer tube 5 inwalls this moment, then pearl body 51 be subjected to attractive force upwards and content liquid be subjected to attractive force to be drawn into outer tube 5 and piston space, fill up the space of expansion to replenish, drawn owing to container 6 in-to-in content liquids simultaneously, then container 6 inner spaces enlarge the build-up of pressure minimizing, be at this moment by pore 52 aspirated airs of outer tube 5 to remedy container 6 inner spaces of reducing, so promptly finish the start of drawing;

When the user pushes head 1, be as shown in Figure 7, this head 1 is pushed ejector sleeve 2 start down vertically, owing to ejector sleeve 2 is that interior pipe 4 of first interlock and piston portion 41 are downward, it is downward to replace block valve 3 by shoulder 21 again, then this section difference is to make the guide hole 42 of interior pipe 4 not be subjected to 3 sealings of block valve to be connected state, and, piston portion 41 cause the content liquid that originally is positioned at 4 of piston portion 41 and pipes to push against pearl body 51 down because push, cause the sealing of outer tube 5 bottoms, and make that content liquid is to flow to guide hole 42 in regular turn along open-work 43, interior pipe 4 and ejector sleeve 2, and then overflow by the exit end 11 of head 1, so promptly finish the start of drawing;

At this moment, because

piston portion

41 and 3 on block valve are the content liquids that is full of after drawing, when decontroling, the user pushes power, when these elastic parts 45 pushing and pressing make progress, get back to shown in Figure 5, the open-work 43 of this piston portion 41 is to adopt cooresponding skewed setting with the stop part 31 of block valve 3, then this open-work 43 is that certain inlay card is airtight with stop part 31, and this guide hole 42 is by this flank 46 and the cooresponding setting in block valve 3 bottoms, when this piston portion 41 upwards pushes against, this piston portion 46 is to combine with block valve 3 inlay cards, so this guide hole 42 is sealed by block valve 3, then 3 on this piston portion 41 and block valve are to form the barrier layer 7 that is full of content liquid, because the utility model is to be used to the emulsion of taking a shower, when particularly sticky shape emulsion or particle paste emulsion, the content liquid of paste emulsion is to be full of in 3 on piston portion 41 and block valve, even piston portion 41 and block valve 3 outer peripheral edges are subjected to abrasion outer tube 5 inwalls of can't fitting really, barrier layer 7 is can fill up to scrape the damage place, keep block valve 3, the air-tight state that piston portion 41 and interior pipe are 4 is to reach the best draw state that does not leak.

Please refer to the generalized section of Fig. 8 to Figure 11, as shown in Figure 8, when initial condition, this head 1 is to revolve to lock on the stopper 12, this ejector sleeve 2 is subjected to head 1 locking to press down interior pipe 4 of pushing and pressing and Coupling 44 and pushes elastic parts 45, owing to should interior pipe 4 calibers be to adopt class's stratiform setting, and convergent from top to bottom, it is to fasten with outer tube 5 tube walls that these interior pipe 4 bottoms connect the Coupling of establishing 44, even as shown in Figure 9, the user is inverted container 6, pearl body 51 is subjected to terrestrial attraction and can't fastens stopper 53, and content liquid is to be flow backwards by container 6 bottoms, because this Coupling 44 is pipes 4 in closely fastening, content liquid in the guide hole 42 of pipe 4, then is unlikely to take place the thing that overflow leaks in then can't flow to;

As shown in figure 10, when if this head 1 is first opening, be to utilize block valve 3 outer peripheral edges elastic constructions to reach obturation effect with outer tube 5 madial walls, after the continuous pressed several times of user, this elastic parts 45 is elasticity involution pushing and pressing Couplings 44, this Coupling 44 is that pushing and pressing piston portion 41 and interior pipe 4 make progress, this piston portion 41 is that content liquid is drawn into outer tube, and the open-work 43 of this piston portion 41 is stop part 31 inlay cards that pushed against with block valve 3, and the guide hole 42 of pipe 4 is sealed by block valve 3 internal diameters in being somebody's turn to do, and make flowing mode as can be known by aforesaid drawing, 41 of this block valve 3 and piston portions are to form one by barrier layer 7 that content liquid constituted; This barrier layer 7 is when pushing at every turn, the guide hole 42 and the elastic parts 45 of pipe were that original position is returned in involution in content liquid flowed into, and make block valve 3 and piston portion 41 inlay cards form barrier layer 7 once again, so this barrier layer 7 is to obtain to replenish with push at every turn, and the sustainable fully enclosed effect that reaches; Even when the user is inverted container 6 as shown in figure 11, pearl body 51 is pullled by terrestrial attraction and can't be fastened stopper 53, content liquid is flow backwards by container 6 bottoms, because this block valve 3 has sealed guide hole 42, and 41 of this block valve 3 and piston portions form barrier layer 7, so content liquid is overflow to release outward outside the container 6.

Please refer to shown in second embodiment of Figure 12 and Figure 13, this Coupling 44 is can be integrally formed with the piston portion 41 of interior pipe 4, and these Coupling 44 internal diameters are Coupling 44 internal diameters greater than first embodiment, so be to can be used for the wide elastic parts 45 in big footpath, elastic parts 45 is installed in the Coupling 44 just, and can reaches above-mentioned identical effect; When outer tube 5 accommodation spaces less and when still needing to install the wide elastic parts 45 in big footpath, as if being installed in, this elastic parts 45 can cause cooresponding hole slot excessive on the piston portion 41, make piston portion 41 wall thickness and structure power deficiency, therefore be to utilize first embodiment to be installed in piston portion 41 than the Coupling 44 of large diameter, to keep elastic parts 45 certain elastic compression, be unlikely to produce because of using elastic parts 45 than path to produce to reverse or the thing of deflection.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims

1. pressure head pump structure-improved, it mainly comprises pipe, an ejector sleeve, a block valve and an outer tube in one, wherein:

Pipe, ejector sleeve, block valve are to be installed in outer tube inside in being somebody's turn to do;

Should interior pipe bottom be to be provided with a piston portion, this piston portion be to be equipped with open-work, and should be to be arranged with an elastic parts bottom the interior pipe, is to be arranged with the block valve on pipe in this;

This block valve be wear be located on the pipe, and these block valve outer peripheral edges are to be the elastomeric structure of tool, this block valve fits in the outer tube madial wall; This block valve bottom is provided with stop part, and this stop part is corresponding to the open-work setting;

This ejector sleeve is in being installed on pipe and the block valve, and this ejector sleeve top is to be equipped with a head that is connected, and this ejector sleeve bottom is to connect with interior pipe box and be connected, this ejector sleeve be by head push or the elasticity of elastic parts pushes back, and axially move toward covering along ejector sleeve;

Elastic parts ejector ram portion, the stop part driving fit inlay card of the open-work of piston portion and block valve forms a barrier layer.

2. pressure head pump structure-improved according to claim 1 is characterized in that described interior pipe bottom is equipped with one group of Coupling of establishing the elastic parts of different size.

3. pressure head pump structure-improved according to claim 2 is characterized in that described Coupling is integrally formed with piston portion.

4. pressure head pump structure-improved according to claim 1 is characterized in that described piston portion top is provided with flank, and these flank outer peripheral edges are skewed, and this block valve bottom is provided with cooresponding ramp-like configuration.

5. pressure head pump structure-improved according to claim 1 it is characterized in that described open-work madial wall is to be skewed, and these stop part outer peripheral edges is to be skewed.

6. pressure head pump structure-improved according to claim 1 is characterized in that being equipped with on the described outer tube outer wall and makes air be entered the pore of balance external and internal pressure.

7. pressure head pump structure-improved according to claim 1 is characterized in that described outer tube inside is provided with a pearl body, the inner stopper that forms of this outer tube, and this pearl body is fastened by stopper.

8. pressure head pump structure-improved according to claim 1 is characterized in that described interior pipe is to be equipped with guide hole, and this guide hole enters head for content liquid.

9. pressure head pump structure-improved according to claim 1 is characterized in that described ejector sleeve bottom is that ring is established the shoulder of protrusion formation one for pushing and pressing block valve.

10. pressure head pump structure-improved according to claim 1 is characterized in that described ejector sleeve is arranged in a stopper and is communicated with the head socket, and this stopper is to be installed in outer covering, and this head and stopper are installed on the container.