CN203439425U

CN203439425U - Piston type bath pump

Info

Publication number: CN203439425U
Application number: CN201320297261.5U
Authority: CN
Inventors: 钟竞铮
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-27
Filing date: 2013-05-27
Publication date: 2014-02-19
Anticipated expiration: 2023-05-27

Abstract

The utility model relates to a piston type bath pump, which has the same members and the same working principle as the conventional bath pump. However, the balance small hole of the piston type bath pump provided by the utility model is formed on a bottle cap, so that the piston can be mounted in the position of the mouth of the pump, and as a result, the volume efficiency of the pump body is increased; the mouth of the pump has a large diameter so that the travel of the piston can be reduced, and in addition, the spring is changed into a tapered spring, the tapered spring can be pressed flatly and shrinks into the inner cavity of the piston when the piston goes down to drain liquid, and consequently, the height of the pump body is greatly reduced through comprehensive optimization; for a one-way valve, a loose-leaf type one-way valve with a fold position groove is preferred, so that the resistance of the bath pump in absorbing and draining liquid is reduced, and as a result, the sealing frictional force of the piston can be reduced; the integrated structure of the bottle cap and the pump body, or the bottle cap and a pump cap or a compression bar and the piston is adopted, and no matter which integrated structure is adopted, the assembly and production costs can be reduced; and a compression disc is combined with an ornamental cover so that the piston type bath pump looks beautiful.

Description

Piston type shower pump

Technical field

The utility model belongs to daily living article, by pressing with hand, the beauty articles for use of the aqua in Packaging Bottle or emulsion form is pumped, and is commonly called as shower pump or emulsion pumps, also has foam pump, atomizing cone to have similar structure.

Background technology

Existing shower pump, foam pump, atomizing cone are all named by its purposes or liquid form, and its structure is identical, all belong to reciprocating piston pump.Shower pump is connected in bottle cap, then adds skirt and showerhead configurations is supplied market well, is general product, be widely used for many years, yet it is but low efficiency.

Piston needs strict sealing to pump housing inner chamber, just must bring the static friction of casing wall and dynamic friction resistance, because the pump housing is longer, for the ease of depanning, just need larger withdrawing pattern slope, when this just causes piston down to move, resistance enters an increase, reaches maxim to end of travel, therefore need configuration powerful, longer spring is so that piston rebound resets.Through measuring the pump housing height 70mm(of the shower pump of 3ml, disregard the connecting section of skirt), the long 52mm of spring, packs the spring having compressed in cylinder into and is about 35-40mm, and during piston stroke 15mm, spring is depressed into 20-25mm.

The balance aperture of conventional 3ml shower pump is on casing wall, and from cylinder mouth 12mm place, for avoiding piston to find time, piston must be installed on below cylinder mouth 12mm.

Investigate the check valve of conventional shower pump, more use pearl check valve,, service-strong advantage simple in structure because having, but fluid resistance is very large.If use larger-diameter pearl, be subject to the restriction of caliber, annular space is just little; If with the pearl of small diameter, the nozzle diameter that forms sealing with pearl is just less, also makes fluid resistance strengthen.Square being directly proportional of the resistance of fluid and flow velocity, and square being inversely proportional to of flow velocity and caliber, so resistance is directly proportional to 4 powers of caliber, so pipe with small pipe diameter, little annular space are very large on the impact of resistance.Visible existing piston pump is installed on the minimum place of depression bar outlet diameter by pearl check valve, is very large drawback; And the pearl check valve of installing in induction pipe also has very large resistance, result causes negative pressure increase in the pump housing while sucking liquid, just increased the seal request of piston to casing wall, and the negative pressure overcoming in friction drag and the pump housing is to need the screen resilience of metal spring to carry, this is the reason that metal spring needs very large screen resilience.

The conventional depression bar of piston pump and the connection place of piston have complexity and tortuous runner, and increasing on foot fluid resistance also needs to improve.

Conventional shower pump is also not convenient for aesthstic moulding, nozzle has all limited the design of complicated appearance at the fixed position of shower nozzle and the material of shower nozzle, many there is oral area cannot moulding compared with the little profile of inner chamber because mould can not demoulding, and injection moulding thick component, very thin member cannot be produced.

Utility model content

In order to overcome the deficiency of existing shower pump, the utility model provides the piston type shower pump configuration of optimizing, can improve the Volumetric efficiency of pump, save raw MAT'L, more laborsaving during use, and by changing the press surface of pump and the formation junction surface, position of pump discharge, joint portion connects external decorations cover, and makes piston type shower pump have the function of beautifying.

In order to achieve the above object, the utility model is realized by following technical method: piston type shower pump comprises: skirt 1, import check valve 2, the pump housing 3, piston 4, outlet check valve 6, bottle cap 7, depression bar 8, pump cover 9, shower nozzle 10, metal spring 11, seal ring 12.Skirt 1 inserts the pump housing 2 bottom mouths of pipe 2.3, the interior import check valve 3 that arranges of the pump housing 2; Pump housing oral area 2.2 stretches out bottle cap 7, can fill in pump cover 9 fixing; Piston 4 is installed in pumping hole 2.2, and the inwall of piston 4 and the pump housing 2 forms movable sealed attachment; Piston has the mouth of pipe 4.1, has outlet check valve 6 on the mouth of pipe, depression bar 8 one end 8.1 and 4.1 one-tenth sealed attachment of the piston mouth of pipe, and depression bar one end 8.2 connects shower nozzle 10; The piston mouth of pipe has metal spring 11 4.1 times.During use, press shower nozzle 10 and make depression bar 5 drive piston 4 to move down along the inwall of the pump housing 2, the interior pressure of the pump housing 2 is increased, import and export check valve 2,6 keyings the liquid in the pump housing is discharged through nozzle; Decontrol shower nozzle 10, under the effect of spring 11, piston 4 resiliences make the internal drop of the pump housing 2 low, import and export check valve 2,6 and open and close, and the liquid in container is sucked in the pump housing 2 through skirt 1.

In the annular space of the pump housing 2 and bottle cap 7, fill in seal ring 10; On the annulus of bottle cap 7, there is balance aperture 7.6, both sides at the seal ring 12 over against two balance aperture centers add the edge of a knife, just form unidirectional loose-leaf 12.1, when the internal drop of bottle is low, air outside bottle through balance aperture 7.6, push unidirectional loose-leaf 12.1 open and enter in bottle, to the liquid in bottle, but can keep closing.For ease of installing, three also should have positioning mark.

Piston type shower pump can also comprise platen 13, decorations cover 14 and connection pipe 15; Platen 13 is injection molded into one in depression bar 8 upper ends, is that joint portion 13.1 can be stablized and coordinate with decorations cover joint portion 14.1 above platen; There is outlet pipe 8.3 in depression bar 8 outsides, and exterior trim is covered with outer tube mouth 14.2, at external decorative casing made inner chamber, have interface tube 14.3, have connection pipe 15 and depression bar outlet 8.3 to coordinate and connect.

Utilize conventional depression bar 8 also can, by the configuration with platen 13, decorations cover 14 and connection pipe 15, realize beautifying shower pump.Piston type shower pump comprises platen 13, decorations cover 14 and connection pipe 15; Platen 13 comprises outlet pipe 13.2, and platen 13 tops are joint portion 13.1, and stablizes and coordinate with the joint portion 14.1 of decorations cover; Decorations cover is outer the mouth of pipe 14.2, and inner chamber has interface tube 14.3, has connection pipe 15 to connect the outlet 13.2 of decorations cover lumen tube interface 14.3 and platen.

Shower nozzle can be envisioned as to the platen with outlet pipe, and the shell of shower nozzle and nozzle are peeled off out and form decorations cover and the outer mouth of pipe of decorations cover, therefore the decorations cover of platen of the present utility model and the outer mouth of pipe of band, the shower nozzle having can be considered especially through alienation, so imagines that its annexation is just not difficult to have understood.

As the decorations cover of tool tortoise profile, turtle shell is platen, and the head of tortoise is the outlet of decorations cover; The witch who flies in the children's stories of the West, witch's head or back are platen, an outlet for decorations cover of besom handle; The refreshing lamp of A Fandi has become outlet; The tap that also has dragon-boat, and so on, obviously the exterior configuration of decorations cover possesses huge imagination space.

Decorations covers can, with warding off adhesive process or plastic uptake technique configures, can be produced various moulding.Plastic uptake technique has raw material and the low advantage of productive costs, but preferentially adopt, or with ward off Jiao Ta and join, then through colored printing, product just has excellent outward appearance, although more expensive but reusable, also have a reserve value.

Import check valve is made with elastomeric material, and the garden being integrally formed by fixed ring 3.2 and the folding position 3.3 in middle loose-leaf 3.1, outside is lamellar, and the diameter of loose-leaf is large compared with the mouth of pipe of wish sealing; 3.2 of loose-leaf 3.1 and fixed rings have annular space, and 3.3 one-tenth of folding positions groove connects loose-leaf 3.1 and fixed ring 3.2, and the thin place of straight line of folding position groove provides the S. A. of loose-leaf, and when loose-leaf 3.1 has difference of pressure up and down, loose-leaf 3.1 lifts to open and close the mouth of pipe.Required minimum dynamics and maximum opening angle when the cross sectional shape of folding position 3.3, width and thickness can be used for designing loose-leaf 3.1 and lifts, the former need consider check valve loose-leaf 3.1 buoyant impact in liquid; And the latter need consider that too large angle reduces the rebound retardation that resistance may cause loose-leaf 3.1 no longer significantly.Loose-leaf in use, along with raising the increase of angle, the moment needing also increases, but negative pressure in cylinder reducing, so the opening angle of loose-leaf reality and lift the moment of loose-leaf and the resistance of the negative pressure of formation, fluid etc. is associated.

Outlet check valve 6 has the structure identical with import check valve 3.

Need to consider loose-leaf 6.1 also buoyant impact in liquid of check valve, except also to estimate that unidirectional loose-leaf still can be resisted liquid-column height when bottle canting, avoid the possibility of leak of liquid, just need be designed to loose-leaf 6.1 line ups, the normally off to fluid column, therefore resistance to flow output will strengthen, but the power increasing for staff is pressed is limited.If the sealing strengthening fluid column at import check valve 3, will make suction resistance strengthen, increase the negative pressure in cylinder body, so should use outlet check valve to the sealing of fluid column.

Bottle cap 7 and pump cover 9 or bottle cap 7 and the pump housing 2 and piston 4 and depression bar 8 also can join together, once injection molded, are all conducive to reduce mould and set-up cost and use.

The beneficial effects of the utility model are as follows:

1. this piston type shower pump uses cone-shaped spring, is conducive to reduce the height of the pump housing, approximately can reduce 20mm, highly lower cylinder, and for reducing, withdrawing pattern slope is also favourable, and the selection of shorter height and cooperation plastic raw materials even can forced stripper mechanism.

2. balance osculum is moved on bottle cap, piston just can be installed on pumping hole, and large activation reduces the pump housing height of 10mm.Because pumping hole diameter is larger, thus available larger-diameter piston, the diameter in the former pump housing is 15mm, and pumping hole internal diameter is 19mm, if be still the lifting rate of 3ml, stroke just only needs 9.4mm; Comprehensively approximately can reduce the height of 36mm, approximately can material-saving 50%.

3. importing and exporting check valve is loose-leaf system check valve, and loose-leaf system check valve has the almost attribute of standard-sized sheet full cut-off, has minimum drag characteristic, import check valve is installed on open place at the bottom of pump, and take larger diameter, just can reduce pump housing negative pressure, thereby can the less metal spring wire diameter of adapted; Outlet check valve is installed on the union end of depression bar and piston, diameter maximum.

4. adopt platen and decorations cover to beautify shower nozzle and external.

Accompanying drawing explanation

Fig. 1 is the structural representation of conventional reciprocating piston pump;

Fig. 2 is the structural representation of the reciprocating piston pump of the utility model embodiment mono-;

Fig. 3, Fig. 3 b are the platen of the utility model embodiment bis-and the structural representation of decorations cover;

Fig. 4 be bottle cap and cylinder body join together structural representation;

Fig. 5 is the structural representation that bottle cap and cylinder cap join together;

Fig. 6, Fig. 7 are the structural representation of import loose-leaf system check valve;

The schematic diagram that Fig. 8 installs for outlet check valve.

The specific embodiment

Below in conjunction with accompanying drawing and the specific embodiment, the utility model is described further:

Be illustrated in figure 1 conventional piston type shower pump structure, chart display the member label identical with piston type shower pump of the present utility model to facilitate contrast.

Embodiment mono-

As shown in Figure 2, piston type shower pump comprises: skirt 1, the pump housing 2, import check valve 3, piston 4, outlet check valve 6, bottle cap 7, depression bar 8, pump cover 9, shower nozzle 10, metal spring 11 and seal ring 12 form.Skirt 1 inserts the pump housing 2 bottom mouths of pipe 2.3, and there is import check valve 3 at the interior open place of the pump housing 2; The pump housing 2 outer walls have disk 2.1, and bottle cap 7 has round mouth 7.2, and the disk 2.1 of the pump housing is from bottle cap 7 lower end intercalations, and pump housing opening 2.2 stretches out connection, the canned paragraph that becomes pump cover 9 on bottle cap 7 by bottle cap round mouth 7.2; In the annular space of the pump housing 2 and bottle cap 7, fill in seal ring 12, on the disk 2.1 of the pump housing 2, have balance aperture 2.4, have balance aperture 7.6 on the annulus of bottle cap 7, balance aperture 2.4 and balance aperture 7.6 center are relative with the unidirectional loose-leaf 12.1 on seal ring 12; Piston 4 is installed in pumping hole 2.2, and the inwall of piston 4 and the pump housing 2 forms movable sealed attachment, and there is the mouth of pipe 4.1 at piston 4 centers, has outlet check valve 6 on the mouth of pipe; The bottom opening 8.1 of depression bar 8 and piston 4 sealed attachment, the other end outlet 8.2 of depression bar 8 connects shower nozzle 10.

Metal spring 11 is cone-shaped spring, and its top end diameter is less, is arranged on the outside of piston 4 cavity inner spouts 4.1, and its bottom diameter is more greatly at the pump housing 2 lower diameter maximums.The diameter of each circle of cone-shaped spring at least all, than the large wire diameter of a upper circle, therefore can be pressed into flats, during piston 4 descending discharge opeing, in the inner chamber of the cone-shaped spring energy retraction piston 4 of compression.The loose-leaf 3.1 of import check valve 3 contacts cone-shaped spring in the time of need avoiding loose-leaf to open and close.

Outlet check valve 6 also can be installed in depression bar 8.

The structure that has shown the seal ring 12 of the present embodiment in figure, adds the edge of a knife in the both sides of the seal ring 12 over against two balance aperture centers, just forms unidirectional loose-leaf 12.1.

Bottle cap 7 and pump cover 9 inwalls have thread, and this enforcement figure does not draw.

Embodiment bis-

As shown in Figure 3, piston type shower pump also comprises platen 13, decorations cover 14 and connection pipe 15, and platen 13 and depression bar 8 are injection molded into one, and platen top is stable cooperation of joint portion 14.1 that cover can and be adornd in joint portion 13.1; There is outlet pipe 8.3 in depression bar outside, and decorations cover is outer the mouth of pipe 14.2, and inner chamber has interface tube 14.3, has connection pipe 15 to connect the outlet pipe 8.3 of decorations vestlet interface 14.3 and depression bar.The bottom opening of decorations cover can be placed on bottle cap or stretch out outside bottle cap, depending on the configuration of decorations cover, need to determine.

Because decorations cover is the structure being independent of outside bottle cap with the configuration of depression bar, so in bottle cap, the connecting relation of all the other each members is identical with embodiment mono-.

As shown in Figure 3 b, conventional piston type shower pump also can comprise platen 13, decorations cover 14 and connection pipe 15, and platen 13 comprises outlet pipe 13.2, and platen 13 tops are stable cooperation of joint portion 14.1 that cover can and be adornd in joint portion 13.1; Decorations cover is outer the mouth of pipe 14.2, and inner chamber has interface tube 14.3, has connection pipe 15 to connect the outlet pipe 13.2 of decorations vestlet interface 14.3 and platen.

The figure illustrates the original port 8.2 of depression bar 8, utilize conventional depression bar 8 also can, by the configuration with platen 13, decorations cover 14 and connection pipe 15, realize beautifying shower pump.

In fact with the outer cover 14 that bands of shower nozzle 10 of existing conventional piston type shower pump, also can beautify shower nozzle.Be conventional piston type shower pump, comprise the pump housing 2, import check valve 3, piston 4, outlet check valve 6, depression bar 8, shower nozzle 10, decorations cover 14; The pump housing 2 sidewalls have balance aperture 2.4, and piston 4 is installed on balance aperture below 2.4; Piston 4 has the mouth of pipe 4.1, and the bottom opening 8.1 of depression bar and the piston mouth of pipe 4.1 connect, the interior installation outlet check valve 6 of depression bar 8, and depression bar one end 8.2 connects shower nozzle 10; Shower nozzle 10 and 14.1 stable cooperations of decorations cover joint portion; Decorations cover 14 is outer outlet pipe 14.2, and inner chamber has interface tube 14.3, has connection pipe 15 to connect the nozzle 5 of shower nozzle and the interface tube 14.3 of decorations cover.

The conventional piston pump of piston type shower pump, and the platen 13 of Fig. 3 b and export 13.2 and change common shower nozzle 10.

Embodiment tri-

As shown in Figure 4, bottle cap 7 and the pump housing 2 be injection molded one once, at the sidewall of bottle cap 7, has balance aperture 7.6 relative with the unidirectional loose-leaf 12.1 on seal ring 12 through bottle cap garden ring.The connecting relation of all the other each members is identical with embodiment mono-.

At bottle cap sidewall, open balance aperture and be conducive to strengthen pump housing diameter.

Embodiment tetra-

As shown in Figure 5, pump cover 9 and bottle cap 7 be injection molded one once, has balance aperture 7.6 on the sidewall of bottle cap 7, through the garden ring of bottle cap 7 and the balance aperture 2.4 on pump housing disk 2.1, communicate, and relative with the unidirectional loose-leaf 12.1 on seal ring 12; The connecting relation of all the other each members is identical with embodiment mono-.

Each embodiment above, bottle cap 7 and pump cover 9 inwalls have thread, not shown in FIG..

Embodiment five

As shown in Figure 6, import check valve 3 use elastomeric materials are made.The garden being integrally formed by location 3.2 and the folding position 3.3 in middle loose-leaf 3.1, outside is lamellar, and the diameter of loose-leaf 3.1 is large compared with the mouth of pipe of wish sealing; Loose-leaf 3.1 and locate 3.2 and have annular space, 3.3 one-tenth of folding positions groove connects loose-leaf 3 and location 3.2, and the thin place of straight line of folding position groove provides the S. A. of loose-leaf 3.1.

As Fig. 6 b has removed the garden ring of outer ring, location, and use hole, garden, location; Obviously also can locate by location pins.

Double-hinge even four loose-leaves can form check valve 3 by identical folding position groove principle, but the mouth of pipe need to be made corresponding change.

Fig. 7 is that import check valve 3 is fixed on cylinder bottom in cylinder body 2, has cone-shaped spring 11 on it.

Fig. 8 is installed on the schematic diagram of piston 4 for exporting check valve 6, outlet check valve 6 has the structure identical with import check valve 3.

Existing structure with conventional piston pump; the mode of beautifying of only banding cover on shower nozzle; and bottle cap band balance hole, use cone-shaped spring, use loose-leaf system check valve with Origuchi groove structure, add beautifying of platen, decorations cover; it is all content of the present utility model; obviously identical structure also can be used in atomizing pump, foam pump structure, is all protection domain of the present utility model.

Claims

1. piston type shower pump, comprises the pump housing (2), import check valve (3), piston (4), outlet check valve (6), bottle cap (7), depression bar (8), pump cover (9), shower nozzle (10), metal spring (11), seal ring (12); Piston (4) is installed in pumping hole (2.2); Piston (4) has the mouth of pipe (4.1), installation outlet check valve (6) on the mouth of pipe; The bottom opening of depression bar (8.1) and the piston mouth of pipe (4.1) sealed attachment; Skirt (1) connects pump housing import (2.3), has import check valve (3) in the pump housing (2); In annular space between bottle cap (7) and the pump housing (2), there is seal ring (12).

2. piston type shower pump as claimed in claim 1, it is characterized in that: bottle cap (7), the pump housing (2), pump cover (9) are for separating the member of injection moulding, bottle cap (7) has round mouth (7.2), the pump housing outer wall have disk (2.1) intercalation to enter under bottle cap (7), pump housing opening (2.2) stretches out bottle cap (7) by bottle cap round mouth (7.2) to be gone up and is fixed by pump cover (9); Be further characterized in that bottle cap (7) top or sidewall have balance aperture (7.6), pump housing disk (2.1), above has balance aperture (2.4), and two balance apertures (7.6), (2.4) communicate and be relative with the unidirectional loose-leaf (12.1) of seal ring.

3. piston type shower pump as claimed in claim 1, it is characterized in that: bottle cap (7) and the pump housing (2) are the member of an injection moulding, be further characterized in that bottle cap (7) top or sidewall have balance aperture (7.6), the unidirectional loose-leaf (12.1) of balance aperture (7.6) and seal ring is relative.

4. piston type shower pump as claimed in claim 1, it is characterized in that: bottle cap (7) and pump cover (9) are the member of an injection moulding, be further characterized in that bottle cap (7) top or sidewall have balance aperture (7.6), on pump housing disk (2.1), have balance aperture (2.4), two balance apertures (7.6), (2.4) communicate and are relative with the unidirectional loose-leaf (12.1) of seal ring.

5. piston type shower pump as claimed in claim 1, it is characterized in that: import check valve (3) consists of loose-leaf (3.1), fixed circle (3.2) and folding position groove (3.3), outlet check valve (6) consists of loose-leaf (6.1), fixed circle (6.2) and folding position groove (6.3); The thin place of straight line of folding position groove (3.3) and folding position groove (6.3) is respectively the S. A. of loose-leaf (3.1) and loose-leaf (6.1).

6. piston type shower pump as claimed in claim 1, it is characterized in that: metal spring (11) is cone-shaped spring, its top is in the outside of piston (4) the cavity inner carrier mouth of pipe (4.1), and the bottom of metal spring is at the pump housing (2) lower diameter maximum; The diameter of each circle of cone-shaped spring at least all, than the large wire diameter of a upper circle, therefore can be pressed into flats, when piston (4) is depressed discharge opeing, in the inner chamber of the cone-shaped spring energy retraction piston (4) of compression.

7. piston type shower pump as claimed in claim 1, is characterized in that also comprising platen (13), decorations covers (14) and connection pipe (15) and forms; Described platen (13) is once injection molded at upper end and the depression bar (8) of depression bar (8), and its top is stable cooperation of joint portion (14.1) that cover can and be adornd in joint portion (13.1); Decorations covers (14) are outer outlet pipe (14.2), and inner chamber has interface tube (14.3); Depression bar sidewall has outlet pipe (8.3), has the interface tube (14.3) of connection pipe (15) connection outlet pipe (8.3) and decorations cover.

8. piston type shower pump as claimed in claim 1, is characterized in that also comprising platen (13), decorations covers (14) and connection pipe (15) and forms; Described platen (13) comprises outlet pipe (13.2), and its top is stable cooperation of joint portion (14.1) that cover can and be adornd in joint portion (13.1); Decorations covers (14) are outer outlet pipe (14.2), and inner chamber has interface tube (14.3), has connection pipe (15) to connect the interface tube (14.3) of platen outlet pipe (13.2) and decorations cover.

9. piston type shower pump, comprises the pump housing (2), import check valve (3), piston (4), outlet check valve (6), depression bar (8), shower nozzle (10), decorations covers (14); It is characterized in that the pump housing (2) sidewall has balance aperture (2.4), piston (4) is installed on below balance aperture (2.4); Piston (4) has the mouth of pipe (4.1), and the bottom opening of depression bar (8.1) and the piston mouth of pipe (4.1) connect, the interior installation outlet check valve of depression bar (8) (6), and the depression bar other end connects shower nozzle (10); Shower nozzle (10) and decorations cover joint portions (14.1) are stable to be coordinated; Decorations covers (14) are outer outlet pipe (14.2), and inner chamber has interface tube (14.3), has connection pipe (15) to connect the nozzle (5) of shower nozzle and the interface tube (14.3) of decorations cover.