CN1203834A - Dispensing pump having universal pump body and readily attachable shroud selected from readily attachable shrouds of different outward shapes - Google Patents
Dispensing pump having universal pump body and readily attachable shroud selected from readily attachable shrouds of different outward shapes Download PDFInfo
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- CN1203834A CN1203834A CN 98103122 CN98103122A CN1203834A CN 1203834 A CN1203834 A CN 1203834A CN 98103122 CN98103122 CN 98103122 CN 98103122 A CN98103122 A CN 98103122A CN 1203834 A CN1203834 A CN 1203834A
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- shell
- pump housing
- chimb
- pump
- groove
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Abstract
An attachable shroud and a dispensing pump with universal pump body upon which is formed outward flanges on top of a pump outlet tube which includes a rearward latching section. A rearwardly extending horizontal shelf is formed on the vertical tubular support of the pump body. The shroud is open-fronted and includes a top wall, connected side walls and a rear end wall with an inward horizontal shoulder. Extending downward along the top wall of the shroud are a pair of opposed channels to the rear of which are unitary downward locking wedges. In assembly, the open-fronted shroud is moved forward onto the pump body in a simple uni-directional linear movement, the channels receiving the outward flanges respectively. The latching sections are flexed downward by the locking wedges and snap past the wedges and the shoulder as the shroud slides under the shelf.
Description
The present invention relates to a kind of trigger-type pump dispenser, it comprises the shell of a pump housing and a covering pump housing.The invention particularly relates to a kind of such device, promptly utilize this device, just can easily be installed to shell selected from the shell with different shape and color on the pump housing, installation is finished to rectilinear motion at a folk prescription by automatic assembly equipment.It is particularly suitable for the trigger-type dispensing pump of the sort of type described in the patent 4161288 of the McKinney of mandate on July 17th, 1979, and it is not limited to this purposes certainly.
Have many kinds of trigger-type distributors in the prior art, wherein selected shell can be installed on the pump housing.Comprise the patent 3820721 of the Hellenkamp that for example authorized on June 28th, 1974 in the prior art, for recognition purpose, a shell that has identification number can be snapped on the pump housing.
In order to satisfy the requirement of consumer to the distributor outward appearance better, people such as Cary have done patent of invention 4257539, and it authorizes day is on March 24th, 1981.In this patent, in assembling process, the front end of shell hangs on the front end of the pump housing, and uphang in the air the rear end of shell.In last assembling action, the rear portion of shell is depressed, so that be fixed on the edge of the pump housing, it is to install in the mode that surpasses center (over-center).
People such as Foster in the patent 5366121 of authorizing on November 22nd, 1994, a shell is arranged, shell has hooks before some, when shell installed on the pump housing, these preceding hooks just matched with corresponding perforate.
In the prior art, be connected on shell and the pump housing, do not resemble people and easily realize by automatic assembly equipment desired.In addition, this connection lacks enough securities the pump housing and shell is combined in a kind of reliable mode as an integral unit.
The objective of the invention is to provide a kind of shell and a kind of general pump housing, shell wherein can be chosen from numerous alternative profiles and color, get on so just can utilize automatic assembly equipment at an easy rate selected shell to be installed to the pump housing, thereby can improve the security of assembling.
The present invention is a kind of dispensing pump of trigger spray-type, and it comprises a pump housing, and this pump housing has a pump chamber that is supported on the tubular leg, and this pump chamber has the outlet of an approximate horizontal.A pair of that be parallel to each other and spaced connecting plate protrudes upward from outlet, and on its top outside chimb is arranged.In the vertical, chimb is divided into two longitudinal components at interval by one.A level frame is protruding from tubular leg, is spaced from each other downwards from chimb at the rear portion.
Shell is the moulding unit of a front opening, and it has a roof that connects sidewall and rear wall.What stretch out downwards along roof is a pair of aspectant groove, is inclined-plane, unit or wedge in the groove back.A horizontal shoulder inwardly forms from the rear end, and sidewall is spaced apart downwards from groove.
In assembling process, the shell folk prescription of front opening is to moving on on the pump housing from the rear portion along straight line, and groove receives outer chimb respectively.When lock segments contact locking wedge, lock segments is bent downwardly, and perhaps chock rises along with the bending of roof, and then, along with after latch ramp passes through, this part to be returning rapidly, thereby shell is locked on the pump housing.Simultaneously, horizontal shoulder matches with shelf on the tubular leg, and in its slip underneath, thereby the rear portion of shell is firmly fixed.
Those of ordinary skill in the art can understand purpose of the present invention and technical characterictic well by following description and accompanying drawing, and all these is not to qualification that the present invention did.In these accompanying drawings:
Fig. 1 is a part decomposing section, has represented to implement the used pump housing and the shell of the present invention;
Fig. 2 is a stereogram that looks below shell, and a part of sidewall is wherein broken;
Fig. 3 is the stereogram of watching above the pump housing;
Fig. 4 is the profile that is used to implement the center line of trigger-type pump dispenser of the present invention along fully mounted;
Fig. 5 is the part sectioned view along 5-5 line among Fig. 6;
Fig. 6 is the part sectioned view along 6-6 line among Fig. 4;
Fig. 7 a, 7b, 7c are one of them latch ramps by one of them crooked situation when blocking section on the pump housing;
Fig. 8 is the sectional view similar with Fig. 6, represents a kind of connected mode of modification;
Fig. 9 is the partial top view of the chimb of modification among Fig. 8;
Figure 10 is the part sectioned view along Fig. 8 center line 10-10, and expression is just slipping into the situation of the chimb of groove;
Figure 11 is the partial face figure similar with Figure 10, but represented here be that chimb skids off, be positioned at the installation site.
Embody a kind of dispensing pump of the present invention shown in the profile among Fig. 4, the integral body of dispensing pump is by 10 expressions.It comprises a pump housing 12, has the hole 14 of a lid 15 with holes on the pump housing 12, and port lid 15 is connected its front end; A supporting sleeve 16 and a lid 18 can be connected to distributor on the container (not shown) hermetically by this lid 18.
An operating trigger 22 that has motion arm 23 rotatably is connected on the interior gudgeon 20 of the pump housing.The pump housing 12 comprises a cylinder body 24, in this cylinder body a piston is operated, and this piston can move down under the effect of spring 28.Piston has a tubulose connecting rod 30, and this connecting rod 30 stretches out downwards from piston, and links to each other with a suction pipe 32.Connecting rod is provided with an inlet globe valve 34.
Outwardly directed from the upper end of cylinder body is the outlet 36 of an approximate horizontal, and this outlet is provided with an outlet check valve 37, moves axially in the space of this check valve 37 increasing on the end of outlet 36.Outlet can tilt a bit (7 degree for example tilt) a little from horizontal level, so that promote the pump chamber discharge liquid in cylinder body 24.Outlet check valve 37 be a kind of November 3 nineteen ninety-five by Richard J.Smolen, the valve described in the patent application 08/552768 that Jr submits to, this application has transferred the application's assignee.Quoted Smolen here, the disclosed content of Jr..Be provided with a shell 40, and it is covered on the pump housing 12, make from most of direction and all can not see this pump housing.
In operating process, as McKinney was described, during present dynasty container direction cocking, piston was mentioned by working arm 23, thereby the liquid in the cylinder body is discharged through outlet 36, outlet check valve 37 and hole 14.Also can utilize outlet check valve and pore structure with other, as quote at this described in the disclosed patent of McKinney.
When trigger 22 was released, piston was driven downwards under the effect of spring 28, thereby formed a vacuum, the pump chamber that utilizes this vacuum upwards to suck liquid in the cylinder bodies 24 through inlet globe valve 34 from suction pipe 32.The function situation of outlet check valve 37 is as described in the application of Smolen.
The present invention relates to a kind of improved shell 40 and the pump housing 12 (as shown in Figure 1).These parts are made according to design of the present invention, and therefore a selected shell 40 can for good and all be installed on the pump housing 12 at an easy rate.An advantage of the invention is, can design the shell 40 of Gong the consumer selection of many difformities and color, and a selected shell just can be installed on the pump housing by a simple unidirectional assembling action.
Therefore, just can provide various and have identical internal feature but the different shell of exterior contour or profile when enforcement is of the present invention, producer or consumer's hobby is depended in the selection of exterior contour or profile.
Refer now to the situation of the pump housing shown in Fig. 3 and 4 12 at a glance.Outlet noted earlier 36 is made an integral unit with a pair of isolated and vertical plate 42 that be parallel to each other.This reinforces by cross blade 43 vertical plate 42.Top along vertical plate 42 has chimb 44 protruding, and each chimb all is divided into two sections, i.e. supporting section 44a and lock segments 44b.As shown in Figure 3, lock segments 44b has chute 46 backward, and this chute deviates from the front portion of locking, just like a finger that stretches out 48.Groove 46 makes the coupling part of lock segments 44b and vertical plate reduce, so that make the lock segments 44b more can be crooked.This crooked purpose will be found out in the back significantly.As a kind of optional situation be, one side lock segments 44b can be along short all being connected on the vertical plate 42 of its length.Supporting section 44a and lock segments 44b are separated (as Fig. 1, shown in 3 and 5) by an interrupt unit 49.
Be positioned at below the cylinder body separate downwards and integrally outwardly directed from the pump housing be a horizontal shelf 50, it can be with spaced integrated support plate 52, is used for shelf from upper support, moves up to prevent it.The pump housing also comprises a tubular leg 54, and this tubular leg 54 extend out to cylinder body 24 and supporting this cylinder body.The outer surface of the lower end of tubular leg has some sawtooth 55, and in when fixed installation, these sawtooth are embedded in the zigzag cannelure 56 on the sleeve 16.Ring-type outwardly stops that chimb 58 and piston rod 30 form an integral body, and when up the pipe box 60 of piston slap sleeve 16, this ring-type stops that chimb is just as the stopper of piston motion lower end.Thereby the motion arm 23 that the bottom surface that stops chimb 58 and piston 26 surrounds to trigger 22 provides a working surface.
As shown in Figure 2, shell 40 comprises the rear end wall 64 of a sidewall 62 and an arc.Shell has an open front end 65 (Fig. 1,2).As shown in Figure 6, rear wall 64 can extend out to a summit 66 in the middle grazioso backward, when the manual operation distributor, above the part between thumb and the forefinger can be placed on easily.Shell also forms an integral body with roof 68.Roof 68 can have downward-sloping part 70 (Fig. 6), and this sloping portion 70 seamlessly links together with sidewall 62.
Fig. 5 represents the most clearly in 6, and the leading portion 69 of roof 68,70 is provided with downward L shaped extension 72, thereby forms relative groove 74, and this groove 74 can match with the chimb 44 of the pump housing, and this will be described in detail in the back.
Be provided with the locking chock 76 (as shown in Figure 5) of one at the lower surface of roof 68.These locking chocks are set and the (see figure 2) of aliging mutually basically backwards from groove 74 respectively.Each locking chock 76 all has a bevel phase 76a (see figure 1) and than straight rear end 76b.
In making shell procedure, there are crooked shoulder 78 (see figure 2)s and shell to form one inwardly, this shoulder 78 stretches out inwardly from aft bulkhead 64 and sidewall 62.
The process that shell is assembled on the pump housing is a process that very simple unidirectional straight line moves.By means of projection line, as shown in Figure 1, at first shell 40 is put into the back of the pump housing 12, the open end 65 that makes shell is towards the pump housing.Then shell 40 is moved forward, makes it to move on the pump housing 12, when mobile, the front end of groove 74 respectively with pump housing top on chimb 44 align.
Along with the carrying out of this move operation, the lock segments 44b on the pump housing enters separately corresponding groove 74, and (Fig. 7 a), supporting section 44a also enters these grooves.When each lock segments 44b ran into locking chock 76, lock segments 44b just was bent downwardly at leisure.In addition, or as a kind of optional situation, the roof 68 of shell also can be crooked, thereby allow chock 76 to rise, so that allow chock smoothly by this lock segments.When locking chock 76 when the lock segments 44b, lock segments 44b returns rapidly and/or chock is drawn back, and enters interrupt unit 49 downwards, thus by lock segments 44b with lock cooperating between the chock 76 and stop back the generation (Fig. 7 c) of removing.Groove 74 firmly fixes the front portion of shell, to stop moving up of the pump housing 12 tops.
Fig. 5 is a part sectioned view, and expression has fully installed to shell 40 on the pump housing 12, and one of them supporting section 44a is installed in the groove 74, and lock segments 44b is by locking chock 76.
In a period of time before locking chock 76 coincide with lock segments 44b, the shoulder 78 on the housing back wall 64 cooperatively interacts with the bottom surface of shelf 50.Along with shell continues shift-in on the pump housing, shoulder 78 just shift under the shelf 50 final position (home position) (Fig. 4).This cooperation makes the rear portion of shell 40 drop on the pump housing 12.By this be connected and chimb 44 embedded grooves 74 in connections just shell 40 has been firmly fixed, thereby prevented that shell from from the pump housing 12 vertical moving being taken place.
After build-up member assembling finishes, that is to say that port lid, plate machine, spring, piston and sleeve all have been installed on the pump housing, the assembling of final products described above is to be easy to the easy steps finished with automatic assembly equipment.It only relates to make chimb 44 and groove 74 to align, and with unidirectional straight line move mode shell is advanced on the pump housing.How not different the profile of pipe shell is, and the assembling of the shell and the pump housing all is easy to realize.
Like this, the shell that assembler just can be assembled out profile and be varied in color is selected for use for client.When usefulness is selected different shell assemblings for use, will obtain the dispensing pump of different outward appearances, this is because shell is the major part that constitutes the dispensing pump appearance.
As can be after being assembled into build-up member on the pump housing, again shell is assembled on the pump housing like that, the assembling between shell/pump housing can be carried out before build-up member is installed to the pump housing.Therefore the present invention is very favorable, and it does not need to consider assemble sequence.
To those skilled in the art, clearly can adopt various pump installations to replace piston pump 24,26 disclosed herein.The chamber of other pump installation such as membrane pump, rolling wall etc. all is the equivalent on the said here pump structure.
The shell 40 and the pump housing 12 all can separately be made an integral molded parts separately, can adopt plastic material manufacturing, as utilize polypropylene manufacturing.
A kind of modification of the present invention is shown in partial view 8, and this and Fig. 6 are similar.Chimb 144 places opposed facing groove 174, and groove 174 wherein stretches out downwards from the roof 168 of shell.Chimb is positioned at identical horizontal plane and stretches out along opposite direction, and chimb is being supported by connecting plate 142 respectively.
As shown in Figure 9, chimb 144 is provided with from the outwardly directed hook 180 of back edge.These hooks have front surface 182 and posterior face 184 perpendicular to the chimb length direction of an inclination.These hooks and rearward end 174a mating reaction, thus prevent that chimb from shifting out said groove from length direction.When assembling the dispensing pump of this remodeling, the cannelure of the rear end 144a of the groove on the chimb and groove 174 is separately aligned.
In assembling process, when groove 174 and separately chimb 144 align, shell is upwards moved forward at folk prescription.The inlet of groove 174b edge within it cuts into acute angle, so that help hook 180 is imported (Figure 10).Along with groove advancing on the 144a of the rear end of chimb 144, the rear end of chimb is pressed together by groove, connecting plate is bent, as shown in the figure.When the rear surface of hook 180 arrival slots, eject the rear end of chimb, thereby make chimb recover common shape.When this position (Figure 11), the surface 184 of hook 180 has stopped that chimb along vertically the returning of groove, has therefore also stopped the disengaging (pump housing of contrast Fig. 4) of the pump housing 112.
Preferred a kind of situation is, is connected as 50,78 in conjunction with shelf/shoulder structure among the described cooperation of Fig. 8 and Figure 11 and Fig. 4.This just can be so that when groove 174 or 74 long enoughs and chimb 144,44 also long enough, also can enough stably be assembled to shell on the pump housing under the situation that does not have shelf/shoulder structure.In any case, all need not put this resilient snap-on, as latch ramp 76 and lock segments 44b, or in remodeling, hook 180 lock slots 174, or some other similar snap-on structure are to provide a kind of safe connection.
In preferred embodiment and modification, the present invention can be considered to a kind of assembly method, this method comprises aligns the chimb of each groove, and make the unidirectional such position that moves on the pump housing of shell, promptly in this position, lock segments 44b is connected on the chock 76 by snap-on, or hook 180 is connected with the end 174a of groove 174.
In order to illustrate the present invention, " locking device " is meant flexible member, is the part of chimb 44, when it is crooked, can allow the hard part of shell to pass through, and rebounds then, and is blocked in the back of hard part, prevented to come off." brake apparatus " is the individual groove 174 that the chock 76 of rear end face 76b is arranged or have rear end face.In order to make chimb have more flexibility, one " cam face device " is provided, what represent among the figure is the inclined plane 76a of chock or the inclination front end 182 of hook 180.As previously mentioned, in certain embodiments, it is crooked to produce a part by moving of chock.
The present invention can also have other modification.Therefore, although used limited embodiment to represent the present invention at this, the present invention is not so limited.Scope of the present invention is limited by following claim, come the right of expanded rights requirement by some things of from manufacturing, use or sale the present invention, getting rid of other, the scope of claim is widened, and this is to be convenient to reasonably according to doctrine of equivalents.
Claims (8)
1, a kind of trigger-type dispensing pump comprises:
A. pump housing with pump installation, this pump housing is further limited by a tubular leg, this tubular leg links to each other with container, and supporting this pump installation, the outlet of an approximate horizontal that links to each other with pump installation, the pump housing is provided with the chimb of lengthening, the chimb and the pump housing integrally form, these chimbs are placed in the same horizontal plane, have at least a chimb that an interrupt unit is arranged, thereby form a rear portion lock segments and a front support section, tubular leg is provided with shelf, this shelf and tubular leg form one, and downwards and chimb separate.
B. the shell of an open front, be used for the pump housing is covered basically, this shell comprises an elongated roof, and link to each other with sidewall and aft bulkhead, shell upwards slides on the pump housing from the rear, shell is provided with parallel slot, these grooves are used to hold corresponding chimb on the pump housing, have at least one to connect into whole braking chock down and align with the groove that is used to hold said chimb, and chock has an inclined surface, this inclined surface is used for matching with the rear portion lock segments, and slide thereon, and slip into interrupt unit, thus shell is locked on the pump housing, horizontal shoulder inwardly be positioned at groove below, be suitable for putting under below the shelf of the pump housing and fix.
2, dispensing pump according to claim 1 is characterized in that each chimb all has an interrupt unit, and shell is provided with the chock that aligns with every groove.
3, dispensing pump according to claim 2 is characterized in that groove stretches out from the shell roof downwards.
4, dispensing pump according to claim 2 is characterized in that chimb is outstanding towards the direction that deviates from mutually, groove be mutually facing to.
5, dispensing pump according to claim 2 is characterized in that the shell and the pump housing all come molded formation with polypropylene.
6, dispensing pump according to claim 2 is characterized in that the lock segments at rear portion is useful on the flexible groove of raising.
7, dispensing pump according to claim 2 it is characterized in that each chimb all is supported on the connecting plate, and this connecting plate protrudes upward from the horizontal outlet pipe.
8, dispensing pump according to claim 2, it is characterized in that shoulder from the rear end and partial sidewall inwardly stretch out, and constitute an integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98103122 CN1203834A (en) | 1997-06-25 | 1998-06-24 | Dispensing pump having universal pump body and readily attachable shroud selected from readily attachable shrouds of different outward shapes |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US881,945 | 1997-06-25 | ||
| CN 98103122 CN1203834A (en) | 1997-06-25 | 1998-06-24 | Dispensing pump having universal pump body and readily attachable shroud selected from readily attachable shrouds of different outward shapes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1203834A true CN1203834A (en) | 1999-01-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98103122 Pending CN1203834A (en) | 1997-06-25 | 1998-06-24 | Dispensing pump having universal pump body and readily attachable shroud selected from readily attachable shrouds of different outward shapes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1203834A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136417A (en) * | 2015-09-18 | 2018-06-08 | 雷克特本克斯尔(品牌)有限公司 | Modified nozzle |
-
1998
- 1998-06-24 CN CN 98103122 patent/CN1203834A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136417A (en) * | 2015-09-18 | 2018-06-08 | 雷克特本克斯尔(品牌)有限公司 | Modified nozzle |
| CN108136417B (en) * | 2015-09-18 | 2021-01-22 | 雷克特本克斯尔(品牌)有限公司 | Improved spray head |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |