CN205819915U - A kind of Pump for giving-out structure - Google Patents

Abstract

This utility model relates to the liquid package container field of daily chemical products, and technology to be solved is to overcome deficiency of the prior art, a kind of good seal performance of design, it is simple to the Pump for giving-out structure deposited and transport.The structure of its improvement is the counter bore structure that described piston push rod is lower ending opening, described inlet is also connected with one and stretches into pump chamber to the liquid pumping pipe in piston push rod counterbore, the external diameter of described liquid pumping pipe, less than the internal diameter of piston push rod, is provided with fit seal between liquid pumping pipe and the end of piston push rod.By adding one fit seal in the centre of fluid passage, make liquid container during depositing or transporting, described fit seal can block fluid passage, during Pressing pump liquid, described fit seal releases the sealing to fluid passage, thus ensureing that liquid container will not cause leakage because of topple over or inversion etc., the consumption experience that improve user decreases the problem that should be noted that in logistics.

Description

A kind of Pump for giving-out structure

Technical field

This utility model relates to the liquid package container field of daily chemical products, is a kind of for pumping out container in particular The Pump for giving-out structure of interior liquid.

Background technology

The pressing type Pump for giving-out structure 900 of prior art is as it is shown in figure 1, include main body 910, be arranged in main body 910 Pump liquid mouth 911, pump pressure handle 920 and the Port being connected with liquid container, pump pressure handle 920 is realized by back-moving spring 930 Reset；Being provided with pump chamber 940 in described main body 910, be provided with the piston 950 slided up and down along pump chamber 940 in pump chamber 940, piston pushes away Bar 951 runs through pump chamber 940 and is connected with described pump pressure handle 920；The liquid outlet 941 of pump chamber 940 is connected to by a drain pipe 942 Described pump liquid mouth 911, connecting portion is provided with unidirectional liquid valve 943, and the inlet 944 of pump chamber 940 connects and stretches in liquid container The feed tube 945 in portion, connecting portion is provided with unidirectional liquid feed valve 946.When pressing described pump pressure handle 920 when, piston is driven to push away Bar 951 promotes piston 950 slide downward, described unidirectional liquid feed valve 946 to cut out, and unidirectional liquid valve 943 is opened, and piston 950 just can Enough the liquid in pump chamber 940 is pumped out to pump liquid mouth 911 by drain pipe 942 pump from liquid outlet 941.When unclamping described pump pressure hands The when of handle 920, pump pressure handle 920 realizes resetting under the effect of back-moving spring 930, drives piston push rod 951 to pull piston 950 upward slidings, described unidirectional liquid valve 943 closes, and unidirectional liquid feed valve 946 is opened, and piston 950 just can pass through feed tube Liquid in container is sucked in pump chamber 940 by 945, prepares for pump liquid next time.

This simple in construction, easy to operate pressing type Pump for giving-out structure is the most welcome, but its defect is easily leakage Liquid.Under not using when, described pump chamber 940 internal pressure is identical with the external world, unidirectional liquid feed valve 946 and unidirectional liquid valve 943 are in open mode, so fluid passage " container-feed tube-pump chamber-drain pipe-pump liquid mouth " is in the shape opened State.In this case, it is desirable to need the when that container being deposited uprightly to put, the liquid in utilizing the effect of gravity to prevent container Body is flowed out by above-mentioned passage.But once container is toppled over, what the liquid in container will continue flows out, therefore from pump liquid mouth 911 The when of depositing, container to be prevented is toppled over, and makes troubles to user.Additionally also it is inconvenient for during transport, is difficult to during transport Ensure that container is constantly in erectility, then the liquid in container is easy for flowing out, and causes pollution to external world.To this end, such as What improves the sealing property of Pump for giving-out, it is ensured that either during transport is still deposited will not leakage, improve the making of user It is that the most urgent expectation solves the technical problem that with experience.

Utility model content

Technology to be solved in the utility model is to overcome above-mentioned deficiency of the prior art, a kind of sealing property of design Good, it is simple to the Pump for giving-out structure deposited and transport.

This utility model is achieved through the following technical solutions above-mentioned purpose.

Pump for giving-out structure designed by this utility model is to improve, mainly in traditional pump pressure type Pump for giving-out structure It is for pressing type Pump for giving-out structure, the pump liquid mouth include main body specifically, being arranged in main body, pump pressure handle and and liquid The Port that container connects, pump pressure handle realizes resetting by back-moving spring；It is provided with pump chamber in described main body, in pump chamber, is provided with edge The piston that pump chamber slides up and down, piston push rod runs through pump chamber and is connected with described pump pressure handle；The liquid outlet of pump chamber goes out liquid by one Pipe is to connecting described pump liquid mouth, and connecting portion is provided with unidirectional liquid valve, and the inlet of pump chamber connects one and stretches into liquid container Feed tube, connecting portion is provided with unidirectional liquid feed valve, and the structure of its improvement is the counter bore structure that described piston push rod is lower ending opening, Described inlet is also connected with one and stretches into pump chamber and push away less than piston to the catheter in piston push rod counterbore, the external diameter of described catheter The internal diameter of bar, is provided with fit seal between catheter and the end of piston push rod.This utility model is by fluid passage Between unidirectional liquid feed valve and unidirectional liquid valve, fit seal is set, when depositing or transport, described fit seal It is in fitted seal state, blocks fluid passage, be thus possible to prevent liquid to be flowed out by fluid passage, thus realize above-mentioned Purpose.

Here, just formed close under the state that the concrete meaning of described fit seal is two components moves to cooperation Envelope, is in non-tight state when unmated, can flow through for liquid, i.e. by the phase para-position of two component motions Put the different folding realizing and sealing.Specific in this utility model, described fit seal is arranged on catheter and pushes away with piston Between the end of bar, when unclamping pump pressure handle after pressing when, piston is at pump housing upward sliding, and catheter is at piston push rod Sliding in counterbore, now mutually stagger in the end of catheter and piston push rod, and described fit seal is unmated, is in non-tight State, separately owing to the external diameter of catheter is less than the internal diameter of piston push rod, such liquid just can be by clearance flow between the two Go out.When pump pressure handle restPoses when, i.e. depositing or travel position, the upper end of catheter moves to piston push rod Bottom, now fit seal cooperates, it is achieved seal, i.e. enclose the gap between catheter and piston push rod, Liquid is made to pass through.

Above-mentioned fit seal can be to be multiple different form or structure, and the simplest structure of described fit seal is just It is to include the outer seal ring being arranged at the mouth of pipe of catheter upper end and be arranged on the inner seal ring at the mouth of pipe of piston push rod lower end.When The when of unclamping pump pressure handle after pressing, piston is at pump housing upward sliding, and catheter slides in the counterbore of piston push rod, now Mutually staggering in the end of catheter and piston push rod, interior outer seal ring is in released state, and now, liquid can be from outer seal ring And the gap between piston push rod medial wall and inner seal ring and catheter lateral wall is flow through, described fit seal is unmated, place In non-tight state.When pump pressure handle restPoses when, i.e. deposit or travel position, the upper end motion of catheter To the bottom of piston push rod, now, interior outer seal ring mutually overlaps, and is in mated condition, i.e. encloses catheter and piston Gap between push rod, makes liquid to pass through, it is achieved seal.

In order to improve sealing property, this utility model is improved described fit seal further and is included the loudspeaker of catheter upper end The shape mouth of pipe and the sealing ring coordinated with the tubaeform mouth of pipe.Tubaeform mouth of pipe lateral wall can realize good coordinating with sealing ring Seal, reduce the cooperation precision problem brought due to fabrication error.

This structure can also further optimize, and makes on the described tubaeform mouth of pipe along being provided with a circle sealing edge, seals edge External diameter is less than the internal diameter of piston push rod.So, when the tubaeform mouth of pipe and sealing ring fitted seal when, described sealing edge can It is adjacent to described sealing ring, forms secondary seal, improve sealing property further.

Based on above-mentioned design, the preferred scheme of this utility model is to coordinate along formation with the tubaeform mouth of pipe on described sealing ring Horn mouth, described sealing is provided with a circle sealed groove along downside, described sealing along with sealing ring on along under mated condition, close Envelope groove is fastened on edge on horn mouth.So, when the tubaeform mouth of pipe and sealing ring fitted seal when, described bell-mouthed interior Sidewall forms face seal with the lateral wall of the tubaeform mouth of pipe, and sealed groove is fastened on horn mouth along forming Semi surrounding type sealing, It is greatly improved the sealing effectiveness of fit seal.This structure is in addition to realizing liquid-tight envelope, it is also possible to realize hermetic seal further, So, after fit seal coordinates, if piston continues to rise a slight distance, can be so that the air pressure in the pump housing be less than Ambient pressure, in this state, it is possible to achieve during depositing or transporting, keep the sealing of unidirectional liquid valve.The most single To liquid valve during sealing can partially liq in resorption drain pipe so that the liquid resorption of pump liquid mouth, so The probability of dropping liquid would not occur during depositing.

For the ease of installing, above-mentioned sealing ring is made an independent structure, the most described sealing ring by this utility model At least partly with the counterbore inwall gluing, sealing of piston push rod, sealing ring lower potion is provided with a circle and compresses circle and piston push rod lower surface Coordinate.So, during producing, assembling is facilitated.

In order to ensure that sealing ring does not comes off, described back-moving spring is socketed on catheter by this utility model, reset bullet Spring upper end compresses circle upper support pump pressure handle reset described in being pressed on.Compress sealing ring by the elastic force of spring, make sealing ring tight In the close counterbore being plugged on piston push rod.

In order to improve the convenience of use, reducing the press pressure used in operation, described pump pressure handle forms a lever Formula structure is connected in main body, and pump pressure handle front end connects body interior by a fixed rotating shaft and forms support end, and middle part connects Piston push rod, rear end extends to body contours and becomes press-side.The pressure of pressing can be reduced by lever construction, facilitate user Operation, improve use convenience.And can also improve further and make main body square under described pump pressure handle press-side One is become to hold handle.Coordinate with pump pressure handle by holding handle, the singlehanded action that just can realize being pumped liquid of user, greatly The big convenience improved in use.

Described pump liquid mouth is arranged on the top of described liquid outlet by this utility model the most further, and drain pipe from bottom to top connects Connect liquid outlet and pump liquid mouth, after container is uprightly put, it is possible to use gravity prevents the residual liquid in drain pipe from flowing out.

This utility model, by adding one fit seal in the centre of fluid passage, makes liquid container deposit or transport During defeated, described fit seal can block fluid passage, during Pressing pump liquid, and described fit seal solution Except the sealing to fluid passage, thus ensure that liquid container will not cause leakage because of topple over or inversion etc., improve user Consumption experience decrease the problem that should be noted that in logistics.On the basis of arranging fit seal, this utility model is also To making further improvement in structurally and operationally mode, it is greatly improved the sealing property of fit seal and the convenience of operation, Even stop the situation of existing Pump for giving-out ever-present pump liquid mouth dropping liquid.As can be seen here, this utility model has overcome Above-mentioned defect of the prior art, and there is higher consumption experience, there is for prior art prominent substance Feature and significantly progress.

Accompanying drawing explanation

Fig. 1 is the structural representation of prior art Pump for giving-out.

Fig. 2 is the structural representation of this utility model embodiment.

Fig. 3 is part A enlarged drawing in Fig. 2.

Fig. 4 is part B enlarged drawing in Fig. 3.

Fig. 5 is the partial structurtes schematic diagram of Fig. 2.

Fig. 6 is the schematic diagram that embodiment uses shape body one.

Fig. 7 is C portion enlarged drawing in Fig. 6.

Fig. 8 is the schematic diagram that embodiment uses shape body two.

Fig. 9 is C portion enlarged drawing in Fig. 8.

Detailed description of the invention

Below in conjunction with the citing of above-mentioned accompanying drawing, this patent is described further.Embodiment is used for illustrating Above-mentioned accompanying drawing being merely cited for property explanation, it is impossible to be interpreted as the restriction to this patent；In order to the present embodiment, accompanying drawing are more preferably described A little parts have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art, accompanying drawing In some known features and explanation may omit will be understood by.

A kind of Pump for giving-out structure 100 as shown in Figure 2, the pump liquid mouth 111 including main body 110, being arranged in main body 110, Pump pressure handle 120 and the Port 210 being connected with liquid container 200, main body 110 is formed below described pump pressure handle 120 One holds handle 170.Pump pressure handle 120 realizes resetting by back-moving spring 130, is provided with pump chamber 140, pump in described main body 110 Being provided with the piston 150 slided up and down along pump chamber 140 in room 140, piston push rod 151 runs through pump chamber 140 and described pump pressure handle 120 Connect；The liquid outlet 141 of pump chamber 140 is connected to described pump liquid mouth 111 by a drain pipe 142, connecting portion be provided with unidirectional go out liquid Valve 143, the inlet 144 of pump chamber 140 connects the feed tube 145 stretched within liquid container 200, connecting portion be provided with unidirectional enter Liquid valve 146, pump liquid mouth 111 is arranged on the top of described liquid outlet 141.Shown in Fig. 3, described piston push rod 151 is lower end The counter bore structure 152 of opening, described inlet 144 is also connected with in a counterbore 152 stretching into pump chamber 140 to piston push rod 151 Catheter 147, the external diameter of described catheter 147 is less than the internal diameter of piston push rod 151, and described reseting spring sleeve 130 is connected on drain On pipe 147, between the end of catheter 147 and piston push rod 151, it is provided with fit seal 160.

The detailed construction of described fit seal 160 as shown in Figure 4, including the tubaeform mouth of pipe of catheter 147 upper end 161 and the sealing ring 162 that coordinates with the tubaeform mouth of pipe 161, the described tubaeform mouth of pipe 161 and catheter 147 are one-body molded.Described Along being provided with sealing that a circle turns up along 163 on the tubaeform mouth of pipe 161, seal along 163 external diameter less than in piston push rod 151 Footpath, so can seal along forming fluid passage between 163 and piston push rod 151.Described sealing ring 162 is an independent rubber Glue component, along forming the horn mouth 164 coordinated with the tubaeform mouth of pipe 161 on it, forms necking down, and described sealing sets on the downside of 163 Have a circle sealed groove, described sealing along 163 with sealing ring 162 on along under mated condition, sealed groove is fastened on horn mouth Edge on 164.Described sealing ring 162 at least partly and the counterbore 152 inwall gluing, sealing of piston push rod 151, as shown in Figures 3 and 4, Being plugged in described counterbore 152, sealing ring 162 bottom is provided with a circle and compresses circle 165, compresses circle 165 upper surfaces and is pressed on described On the lower surface of piston push rod 151, lower surface is pressed on described back-moving spring 130, and back-moving spring 130 upper end is pressed on described Compress support pump pressure handle 120 on circle 165 to reset.

It is connected in main body 110 as it is shown in figure 5, described pump pressure handle 120 forms a lever-type structure, is pumped handle 120 Front end connects main body 110 by a fixed rotating shaft 121 and is internally formed support end, and middle part connects piston push rod by universal driving shaft 122 151, rear end extends to main body 110 outer formation press-side 123.

When liquid container is during depositing or transporting, the state of liquid container 200 and Pump for giving-out structure 100 such as Fig. 6 Shown in, described unidirectional liquid valve 143 is closed, and fit seal 160 is in fitted seal state, fills in pump chamber 140 Full liquid (after using first, uses front pump indoor can not have liquid) first.The fitted seal state of fit seal 160 As it is shown in fig. 7, the outer surface of the tubaeform mouth of pipe 161 is close to the inner surface of the horn mouth 164 of sealing ring 162, form face seal, close Seal the sealed groove on the downside of 163 to buckle on horn mouth 164 along forming ring packing, enclose catheter 147 and piston push rod The fluid passage that gap between 151 is formed, makes counter bore structure 152 and the pump chamber 140 not UNICOM of piston push rod 151 lower end. Owing to unidirectional liquid valve 143 and fit seal 160 are in closed mode, so described pump chamber 140 and liquid container 200, Jun Bu UNICOM between pump chamber 140 and drain pipe 142, the liquid in pump chamber 140 will not flow out from pump liquid mouth 111 through drain pipe 142, Even if liquid container 200 is toppled over or is tilted also is not result in that liquid flows out, it is ensured that will not produce to external world when depositing or transport Pollute.

When to be used, by pressing pump pressure handle 120, as shown by the arrows in Figure 6, pump pressure handle 120 is around fixing Rotating shaft 121 rotates down, and as shown in curved arrow in figure, now pump pressure handle 120 promotes piston push rod by universal driving shaft 122 151, piston push rod 151 drives piston 150 glide downwards, compression reseting spring 130 simultaneously.In this process, unidirectional liquid valve 143 are in open mode；Catheter 147 slides in piston push rod 151 counterbore 152, and the fluid passage between it is opened, and coordinates Sealing member 160 releases and coordinates, and is no longer on fitted seal state；Unidirectional liquid feed valve 146 is closed, so described pump chamber 140 and liquid Do not connect between body container 200, UNICOM between pump chamber 140 and drain pipe 142.In this state, continue to press down on pump pressure Handle 120, piston 150 glides, and makes the pressure in pump chamber 140 increase, and pump moves the liquid in pump chamber 140 through drain pipe 142 from pump Liquid mouth 111 pumps out, it is achieved pump liquid function.

When pump pressure handle 120 is pressed into minimum point when, as shown in Figure 8, pump pressure handle 120 is unclamped, at back-moving spring Under the promotion of 130, pump pressure handle 120, around fixed rotating shaft 121 backwards rotation, drives the rising of piston 150, such as arrow institute in figure Show.The most unidirectional liquid valve 143 is closed, and unidirectional liquid feed valve 146 is opened, and fit seal 160 is still in opening shape State.As it is shown in figure 9, mutually stagger in the end of catheter 147 and piston push rod 151, seal and be in along 163 and horn mouth 164 point The fluid passage formed from the gap between state, catheter 147 and piston push rod 151.So described pump chamber 140 and liquid Not UNICOM between UNICOM, pump chamber 140 and drain pipe 142 between container 200, along with the rising of piston 150, the pressure in pump chamber 140 Power reduces, and from the liquid container 200 gap between catheter 147 and piston push rod 151, liquid can be pumped into pump chamber 140, along with gradually rising of piston 150, more liquid is sucked in pump chamber 140.

When be pumped handle 120 close on be raised to initial position when, the end of catheter 147 and piston push rod 151 is mutual Coordinating, fit seal 160 realizes coordinating again, closes the liquid that the gap between catheter 147 and piston push rod 151 is formed Body passage, makes between described pump chamber 140 and liquid container 200 not UNICOM.Hereafter, continue to rise to initially when pump pressure handle 120 Position, it is possible to forming negative pressure in pump chamber 140, make unidirectional liquid valve 143 close under suction function, unidirectional liquid valve 143 exists Move in connecting portion, by the liquid resorption in drive drain pipe 142, prevent dropping liquid, return to state as shown in Figure 6, for next Secondary use is prepared.

Described in above-mentioned accompanying drawing, position relationship is used for the explanation of being merely cited for property, it is impossible to be interpreted as the limit to this patent System；Obviously, above-described embodiment of the present utility model is only for clearly demonstrating this utility model example, and is not Restriction to embodiment of the present utility model.For those of ordinary skill in the field, on the basis of described above On can also make other changes in different forms.Here without also cannot all of embodiment be given exhaustive. All any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, should be included in this reality Within novel scope of the claims.

Claims (10)

1. a Pump for giving-out structure, the pump liquid mouth that including main body, is arranged in main body, pump pressure handle and be connected with liquid container Port, pump pressure handle realizes resetting by back-moving spring；It is provided with pump chamber in described main body, in pump chamber, is provided with along pump chamber downslide Dynamic piston, piston push rod runs through pump chamber and is connected with described pump pressure handle；The liquid outlet of pump chamber is connected to institute by a drain pipe Stating pump liquid mouth, connecting portion is provided with unidirectional liquid valve, and the inlet of pump chamber connects a feed tube stretching into liquid container, connects Portion is provided with unidirectional liquid feed valve, it is characterised in that described piston push rod is the counter bore structure of lower ending opening, and described inlet is also connected with One stretches into pump chamber to the catheter in piston push rod counterbore, and the external diameter of described catheter is less than the internal diameter of piston push rod, catheter And it is provided with fit seal between the end of piston push rod.

Pump for giving-out structure the most according to claim 1, is characterized in that described fit seal includes being arranged on catheter Hold the outer seal ring at the mouth of pipe and be arranged on the inner seal ring at the mouth of pipe of piston push rod lower end.

Pump for giving-out structure the most according to claim 1, is characterized in that described fit seal includes the loudspeaker of catheter upper end The shape mouth of pipe and the sealing ring coordinated with the tubaeform mouth of pipe.

Pump for giving-out structure the most according to claim 3, is characterized in that along being provided with a circle sealing edge on the described tubaeform mouth of pipe, Seal the external diameter internal diameter less than piston push rod on edge.

Pump for giving-out structure the most according to claim 4, is characterized in that joining along formation with the tubaeform mouth of pipe on described sealing ring The horn mouth closed, described sealing is provided with a circle sealed groove along downside, described sealing along with sealing ring on along under mated condition, Sealed groove is fastened on edge on horn mouth.

6., according to the Pump for giving-out structure described in any one of claim 3 ~ 5, it is characterized in that described sealing ring is at least partly and piston The counterbore inwall gluing, sealing of push rod, sealing ring lower potion be provided with a circle compress circle coordinate with piston push rod lower surface.

Pump for giving-out structure the most according to claim 6, is characterized in that described back-moving spring is socketed on catheter, reset bullet Spring upper end compresses circle upper support pump pressure handle reset described in being pressed on.

8., according to the Pump for giving-out structure described in any one of claim 1 ~ 5, it is characterized in that described pump pressure handle forms a lever Structure is connected in main body, and pump pressure handle front end connects body interior by a fixed rotating shaft and forms support end, and middle part connects lives Plug push rod, rear end extends to body contours and becomes press-side.

Pump for giving-out structure the most according to claim 8, is characterized in that main body is square under described pump pressure handle press-side One is become to hold handle.

10., according to the Pump for giving-out structure described in any one of claim 1 ~ 5, it is characterized in that described pump liquid mouth goes out liquid described in being arranged on The top of mouth.