CN107472683B - Emulsion pump with suck-back function - Google Patents
Emulsion pump with suck-back function Download PDFInfo
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- CN107472683B CN107472683B CN201710841745.4A CN201710841745A CN107472683B CN 107472683 B CN107472683 B CN 107472683B CN 201710841745 A CN201710841745 A CN 201710841745A CN 107472683 B CN107472683 B CN 107472683B
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- liquid outlet
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- convex ring
- wall
- outlet pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1059—Means for locking a pump or its actuation means in a fixed position
- B05B11/106—Means for locking a pump or its actuation means in a fixed position in a retracted position, e.g. in an end-of-dispensing-stroke position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1002—Piston pumps the direction of the pressure stroke being substantially perpendicular to the major axis of the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1043—Sealing or attachment arrangements between pump and container
- B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
- B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1073—Springs
- B05B11/1074—Springs located outside pump chambers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1066—Pump inlet valves
- B05B11/1067—Pump inlet valves actuated by pressure
Abstract
The invention discloses an emulsion pump with a suck-back function, which comprises a pump head and a pump body, wherein the bottom of the pump body is provided with a liquid suction port, and a liquid outlet pipe, a piston and an elastic reset mechanism are arranged in the pump body; the pipe valve is sleeved in the through hole and is opened and closed along with the displacement of the liquid outlet pipe to control liquid outlet; the pipe orifice of the liquid outlet pipe is also provided with an outer convex ring, the elastic resetting mechanism is provided with a connecting ring, the piston is provided with a lantern ring, and the inner wall of the connecting ring, which is sleeved with the lantern ring, and the outer wall of the liquid outlet pipe form a movable cavity of the outer convex ring; the peripheral wall of the pipe valve is provided with an upper convex ring and a lower convex ring which are in contact fit with the inner wall of the through hole, and when the pipe valve moves back along with the liquid outlet pipe, the upper convex ring is firstly contacted with the inner wall of the through hole, so that the pipe valve firstly seals the through hole to stop liquid outlet, and the upper convex ring is kept contacted with the inner wall of the through hole to move upwards; meanwhile, the outer convex ring opens the movable cavity to suck back the emulsion until the lower convex ring is abutted against the through hole. The emulsion pump improves the structure of the pump body, enlarges the suck-back space and improves the suck-back effect under the condition of not changing the volume of the pump body.
Description
Technical Field
The invention relates to an emulsion pump, in particular to an emulsion pump with a back suction function.
Background
Emulsion pump on the market at present, be similar to the drawing liquid pump that bottled use on washing hair, the accessible presses the pump head to export the emulsion in the bottle. However, in practical use, after the emulsion pump discharges the liquid, the pump head is left with residual liquid, the emulsion remaining in the pump head is easily polluted or touched by the outside, even drips to cause waste or is wetted to pollute the surrounding environment, and the defects are more obvious if the emulsion pump is filled with other liquids such as oil. Therefore, emulsion pumps with a suck-back function are released by various large manufacturers, and the lifted pump head sucks back the emulsion on the pump nozzle simultaneously through the matching of the internal structure and the air pressure in the process of extending and retracting the pump head.
In the prior art, the internal structure of the pump body of the suck-back functional emulsion pump needs the effective moving mechanism of the equipment to move in combination with the piston, and a containing space for containing suck-back emulsion is formed, so that the suck-back function can be realized. But because the pump body structure itself is inseparable, and inner space is limited, and the space of accomodating the resorption emulsion is less, and the resorption dynamics is not enough moreover, leads to the resorption effect not obvious, and is near not having even, influences user experience, consequently, the emulsion pump of current resorption function can not satisfy the demand of drawing liquid pump technical development now, also is the research difficult problem of each big producer at present simultaneously.
Disclosure of Invention
The invention aims to provide an emulsion pump with a suck-back function, which improves the internal structure of a pump body, effectively increases the containing space of the suck-back emulsion without changing the volume of the pump body, adjusts a liquid pumping mechanism, enhances the suck-back force and improves the suck-back effect.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an emulsion pump with a back suction function comprises a pump head and a pump body which are mutually connected, wherein the bottom of the pump body is provided with a liquid suction port, a liquid outlet pipe, a piston and an elastic reset mechanism are arranged in the pump body, and the liquid outlet pipe moves up and down in the pump body under the action of the elastic reset mechanism; the pipe valve is sleeved in the through hole and opens and closes the through hole along with the displacement of the liquid outlet pipe to control liquid outlet;
the pipe orifice of the liquid outlet pipe is also provided with an outer convex ring, the bottom of the elastic resetting mechanism is provided with a connecting ring extending towards the piston, the piston is provided with a lantern ring sleeved with the connecting ring, and a movable cavity of the outer convex ring is formed between the inner wall of the connecting ring sleeved with the lantern ring and the outer wall of the liquid outlet pipe;
the through hole of the piston is formed by enclosing a convex edge which is arranged below the lantern ring and extends inwards, the peripheral wall of the pipe valve is also provided with a sealing structure which is in contact fit with the through hole, and the sealing structure is an upper convex ring and a lower convex ring which are arranged in a step shape; when the pipe valve moves upwards along with the liquid outlet pipe, the upper convex ring is firstly contacted with the inner wall of the through hole, so that the pipe valve firstly seals the through hole to stop liquid outlet, and the pipe valve continuously moves upwards in a state that the upper convex ring is kept contacted with the inner wall of the through hole; and meanwhile, the outer convex ring moves upwards in the movable cavity, and the emulsion is sucked back into the movable cavity from the liquid outlet pipe until the lower convex ring is abutted against the through hole.
Compared with the prior art, the emulsion pump with the suck-back function is characterized in that an outer convex ring is additionally arranged at the pipe orifice of the liquid outlet pipe in the pump body, and the bottom of the elastic resetting mechanism is provided with the connecting ring which is sleeved with the lantern ring of the piston, so that a movable cavity of the outer convex ring is formed between the inner wall of the spliced connecting ring and the lantern ring and the outer wall of the liquid outlet pipe, and the outer convex ring is used for sucking or extruding emulsion in the movable cavity. In cooperation with the structure, the structure of the pipe valve for controlling liquid outlet is improved, the through hole of the piston is formed by enclosing a convex edge which is arranged below the lantern ring and extends inwards, a sealing structure which is in contact fit with the through hole is arranged on the peripheral wall of the pipe valve, the sealing structure is two layers of upper convex rings and lower convex rings which are arranged in a step shape, the upper convex rings and the lower convex rings are in contact fit with the through hole in sequence, the liquid suction function of stopping liquid outlet firstly and then sucking back emulsion is realized, and the suck back effect is better. In actual use, a user pushes and presses the pump head to enable the liquid outlet pipe to move downwards, the piston is pushed to move downwards, the pipe valve is matched with the piston, and the pipe orifice of the liquid outlet pipe is opened to realize liquid outlet operation; when the liquid outlet pipe is reset and rises under the action of the elastic reset mechanism, the pipe valve moves upwards along with the liquid outlet pipe, and the upper convex ring and the lower convex ring on the pipe valve are sequentially contacted with the through hole of the piston, so that the pipe valve seals the through hole firstly and stops liquid outlet; keeping the upper convex ring and the through hole in a contact state and continuously moving upwards, and simultaneously moving the outer convex ring upwards in the movable cavity, gradually opening the suck-back space of the movable cavity, and sucking the emulsion remained on the pump head back in the suck-back space of the movable cavity through the liquid outlet pipe until the lower convex ring is in contact with the through hole, so as to complete the whole suck-back process; when the liquid outlet pipe is pressed down by the pump head, the outer convex ring extrudes the suck-back emulsion in the suck-back space of the movable cavity, the suck-back emulsion is collected in the liquid outlet pipe and is output together with the output emulsion, and the emulsion is prevented from being wasted or left and affecting the quality of the emulsion.
Compared with the same type of emulsion pump with the suck-back function in the prior art, on one hand, the emulsion pump has the advantages that the movable cavity formed between the inner wall after the connecting ring is sleeved with the lantern ring and the outer wall of the liquid outlet pipe is used as a storage space for suck-back emulsion, so that the liquid storage volume is larger, and more residual emulsion is absorbed; on the other hand, the pump body stops discharging liquid firstly through the sealing structure of the upper convex ring and the lower convex ring of the pipe valve and the piston through hole, and then the back suction emulsion operation is carried out, so that an effective back suction mechanism is formed; the outer convex ring plays a role in pumping and sucking back the emulsion, the emulsion is pumped up in the movable cavity, the suck-back space of the movable cavity is gradually opened, and the suck-back emulsion is stored; because the pump body carries out the resorption operation under the state of sealing out the liquid earlier, therefore the outer bulge loop moves up produced suction emulsion dynamics in the activity chamber and is stronger, improves the resorption effect effectively, lets user experience better.
Furthermore, the pipe valve is sleeved with the liquid outlet pipe and comprises an inserted column and a valve cover, and the valve cover is spliced with the bottom of the piston and covers the through hole to open and close; the inserting column is a flat column body, and two sides of the top end of the inserting column are provided with clasps; the inner wall of the liquid outlet pipe is provided with an inner buckling edge buckled with the buckling hook, so that the pipe valve is fixedly spliced with the liquid outlet pipe through the inserted column. On one hand, the insertion column is a flat column body, so that after the pipe valve is opened, emulsion can enter the liquid outlet pipe from two sides of the flat insertion column and is sprayed out of the liquid outlet pipe; or when the back suction is carried out, the water flows back into the movable cavity from the two sides of the inserted column; on the other hand, the pipe valve is tightly fixed on the liquid outlet pipe and linked with the liquid outlet pipe by buckling the inner buckling edge of the inner wall of the liquid outlet pipe with the buckling ring at the top end of the inserted column.
Still further, the junction of inserting post lower extreme and valve gap is equipped with go up bulge loop and lower bulge loop, go up bulge loop diameter and be less than lower bulge loop, and the rampart of lower bulge loop is from last down to the valve gap and expand gradually. In practical use, when the liquid outlet pipe is pressed down by the pump body to discharge liquid and then rises, the piston is gradually lifted until the lantern ring is abutted against the connecting ring, the pipe valve continuously moves upwards along with the liquid outlet pipe, the upper convex ring is firstly attached to the inner wall of the through hole of the piston, and the through hole is sealed to stop discharging liquid; then, the drain pipe continues to move up under the effect of the elastic reset mechanism, the upper convex ring and the inner wall of the through hole maintain the close contact state, the through hole continues to move up, meanwhile, the outer convex ring moves up in the movable cavity, the suck-back space of the movable cavity is gradually opened, residual liquid of the pump head is sucked into the suck-back space of the movable cavity through the drain pipe until the lower convex ring is abutted against the through hole, and the whole suck-back process is completed. Under the cooperation of the structure, the pump body is sealed to discharge liquid firstly, and then the back suction operation is carried out on the basis of sealing, so that the back suction of residual liquid is effectively controlled, and the back suction effect is improved.
On the basis, the inserting column is also provided with a perforation for dredging suck-back emulsion, and in order to increase the backflow space of residual liquid in the liquid outlet pipe, especially for an emulsion pump with a small volume, the pump body has small volume, the internal space is compact, and the residual liquid suck-back space is small, so that the suck-back emulsion is dredged and the suck-back effect is enhanced by arranging the perforation on the inserting column of the pipe valve.
The structure of the pump body is further improved, the side wall of the pump body is provided with a scavenging port communicated with the outside, and the position of the scavenging port is higher than that of the connecting ring; when the pump head is depressed, the connecting ring separates from the collar and performs a venting operation through the venting port. In order to allow the air pressure in the liquid storage bottle to circulate, the emulsion pump can normally pump out the liquid storage, so that a structure for exchanging with external air needs to be arranged in the pump body. Therefore, the vent hole is formed in the side wall of the pump body, the vent hole is formed above the connecting ring, when a user operates the pump head to press down, the liquid outlet pipe moves downwards, the piston is pushed to the bottom of the pump body, meanwhile, the connecting ring is separated from the lantern ring, so that external air can enter the pump body through the vent hole to be ventilated, the pump body inside the liquid storage bottle can circulate with external air pressure, and the emulsion pump can normally perform liquid pumping operation.
On the basis, in order to ensure the sealing effect, the height of the outer convex ring is the same as that of the lantern ring of the piston, an inner convex ring is arranged at the top of the lantern ring, and the inner convex ring is tightly contacted with the outer wall of the outer convex ring. In the process of the air exchange operation, when the pump head is pressed down, the outer convex ring moves downwards along with the liquid outlet pipe, the return liquid is squeezed back into the liquid outlet pipe from the movable cavity and is output to the pump head together with the liquid outlet pipe; meanwhile, the outer convex ring is embedded in the sleeve ring and is in close contact with the inner convex ring of the sleeve ring, so that emulsion is prevented from seeping out of a gap formed after the separation of the connecting ring and the sleeve ring and then flows out of the outer part from the ventilation port, and the sealing effect and the ventilation performance of the pump body are effectively guaranteed.
The structure of the connecting ring is further improved, and a step embedded with the lantern ring is arranged at the ring opening of the connecting ring. When the piston rises, the lantern ring is abutted and spliced with the connecting ring, and the lantern ring is placed in the connecting ring through the step additionally arranged on the opening of the connecting ring, so that the sealing performance and the fixing effect are effectively enhanced.
On the basis, the outer wall of the connecting ring is also provided with a reinforcing rib which is abutted against the inner wall of the pump body. The reinforcing ribs play a role in enhancing the hardness of the connecting ring on one hand; on the other hand, the strengthening rib helps the location, because do in the go-between the outer bulge loop, the go-between is outer for the strengthening rib, and both contradict each other, improve the concentricity that go-between and lantern ring counterpoint each other effectively, realize accurate concatenation counterpoint, let the activity chamber that go-between and lantern ring concatenation formed, the leakproofness is better.
The elastic reset mechanism of the emulsion pump is further improved and comprises a spring, a spacer bush and a spring fixing sleeve on the outer wall of the liquid outlet pipe, wherein the spacer bush is sleeved with the liquid outlet pipe and is embedded in the pump body to be matched with the fixing sleeve to form a movable groove of the spring; still be equipped with matched with helicitic texture in fixed cover and the spacer for the pump head is detained on the pump body soon when contracting, so that under the long-time state of depositing of sealing, avoids the pump head to receive the exogenic action to push down, and unexpected liquid goes out.
On the basis, the bottom of the pipe valve is also provided with a liquid blocking ring extending downwards, and when the elastic resetting mechanism is in a locking state, the liquid blocking ring is abutted against the inner wall of the liquid suction port to seal the liquid discharged from the liquid suction port. In order to avoid the pump body locking back, the stock solution bottle is in the transportation, and when the stock solution bottle was emptyd or the slope was placed by external force, the stock solution led to the fact the pollution in flowing out the pump body from the imbibition mouth, consequently, set up in the valve bonnet bottom and keep off the liquid ring, when letting the pump body be in locking state, keep off liquid ring and imbibition mouth of pipe inner wall conflict, seal the imbibition mouth of pipe, avoid the stock solution to flow.
Drawings
FIG. 1 is an exploded view of a lotion pump with a suck-back function according to the present invention;
FIG. 2 is a cross-sectional view of the emulsion pump of the present invention in an unlocked state;
FIG. 3 is a view of the piston structure of the emulsion pump of the present invention, FIG. 1;
FIG. 4 is a view of the piston structure of the emulsion pump of the present invention, FIG. 2;
FIG. 5 is a cross-sectional view showing a locked state of the emulsion pump according to the present invention;
FIG. 6 is a view of the tube valve arrangement of the emulsion pump of the present invention;
FIG. 7 is a cross-sectional view of an alternative tube valve arrangement for the emulsion pump of the present invention;
FIG. 8 is a cross-sectional view of another angular locking state of the emulsion pump of the present invention;
FIG. 9 is a sectional view of the emulsion pump in a back-up state after discharging the liquid;
FIG. 10 is a sectional view showing a state in which a pipe valve of the emulsion pump of the present invention seals a through hole of a piston;
FIG. 11 is a sectional view showing the suck-back state of the lotion pump of the present invention.
Detailed Description
The invention discloses an emulsion pump with a suck-back function, which is described by combining the accompanying drawing.
As shown in fig. 1 to 4, the lotion pump comprises a pump head 1 and a pump body 2 which are connected with each other, wherein the bottom of the pump body 2 is provided with a liquid suction port 3, and a suction pipe is preferably connected outside the liquid suction port 3 and extends into a liquid storage bottle; a liquid outlet pipe 4, a piston 5 and an elastic reset mechanism 6 are arranged in the pump body 2, one end of the liquid outlet pipe 4 is connected with the pump head 1, the other end of the liquid outlet pipe is sleeved with the piston 5, and the liquid outlet pipe moves up and down in the pump body 2 under the action of the elastic reset mechanism 6; the pump body 2 is internally provided with a pipe valve 7 arranged at the pipe orifice of the liquid outlet pipe 4, the piston 5 is provided with a through hole 51 aligned with the pipe orifice of the liquid outlet pipe 4, and the pipe valve 7 is sleeved in the through hole 51 and opens and closes the through hole 51 along with the displacement of the liquid outlet pipe 4 to control liquid outlet.
The mouth of pipe of drain pipe 4 still is equipped with outer bulge loop 41, elasticity canceling release mechanical system 6 bottom is equipped with the go-between 61 that extends to piston 5, piston 5 is equipped with the lantern ring 52 that cup joints with go-between 61, the inner wall after go-between 61 cup joints with lantern ring 52, and form the activity chamber 8 of outer bulge loop 41 between the outer wall of drain pipe 4.
As shown in fig. 5 to 6, the pipe valve 7 is sleeved with the liquid outlet pipe 4 and comprises an insertion column 71 and a valve cover 72, and the valve cover 72 is spliced with the bottom of the piston 5 and covers the opening and closing through hole 51; the inserted column 71 is a flat column body, and two sides of the top end of the inserted column are provided with hooks 711; the inner wall of the liquid outlet pipe 4 is provided with an inner buckling edge 42 buckled with the buckle 711, so that the pipe valve 7 is fixedly inserted into the liquid outlet pipe 4 through the inserting column 71.
On one hand, the inserting column 71 is a flat column, so that after the pipe valve 7 is opened, the emulsion can enter the liquid outlet pipe 4 from two sides of the inserting column 71 and is sprayed out; or back-flowing into the movable cavity 8 from two sides of the inserted column 71 during back suction; on the other hand, the inner buckling edge 42 of the inner wall of the liquid outlet pipe 4 is buckled with the buckling ring 711 at the top end of the inserting column 71, so that the pipe valve 7 is tightly fixed on the pipe opening of the liquid outlet pipe 4 and is linked with the liquid outlet pipe 4.
As shown in fig. 8 to 11, the through hole 51 of the piston 5 is enclosed by a flange 511 which is arranged below the collar 52 and extends inwards, the peripheral wall of the pipe valve 4 is further provided with a sealing structure which is in contact fit with the through hole 51, the sealing structure is an upper convex ring 73 and a lower convex ring 74 which are arranged at the joint of the lower end of the insert column 71 and the valve cover 72, the diameter of the upper convex ring 73 is smaller than that of the lower convex ring 74, a step-shaped arrangement is formed, and the ring wall of the lower convex ring 74 is gradually enlarged from top to bottom towards the valve cover 72.
In practical use, as shown in fig. 9 to 10, when the liquid outlet pipe 4 is pressed by the pump head 1 to discharge liquid and then lifted back, the piston 5 is gradually lifted until the collar 52 abuts against the connection ring 61, the pipe valve 7 moves upwards with the liquid outlet pipe 4, the upper protruding ring 73 first abuts against the inner wall of the through hole 51 of the piston 5, and the through hole 51 is sealed to stop discharging liquid.
Then, as shown in fig. 10 to 11, the liquid outlet pipe 4 moves upwards continuously under the action of the elastic resetting mechanism 6, the upper protruding ring 73 keeps in contact with the inner wall of the through hole 51 to close the through hole 51 and move upwards continuously, and at the same time, the outer protruding ring 41 moves upwards in the movable cavity 8 to gradually open the suck-back space of the movable cavity 8, so that the residual liquid from the pump head 1 is sucked into the suck-back space of the movable cavity 8 through the liquid outlet pipe 4 until the lower protruding ring 74 collides with the through hole 51, thereby realizing the whole suck-back process.
When the liquid outlet pipe 4 is pressed down by the pump head 1 again, the outer convex ring 41 extrudes the back-suction emulsion in the back-suction space of the movable cavity 8, and the back-suction emulsion is collected in the liquid outlet pipe 4 and output together with the output emulsion, so that the waste or residue of the emulsion is avoided, and the quality of the emulsion is not influenced.
According to the emulsion pump, by adopting the structure, the pump body 2 is sealed to discharge liquid firstly, and then the back suction operation is carried out on the basis of sealing, so that the back suction of residual liquid is effectively controlled, the back suction effect is improved, and in the liquid discharging operation again, the back suction emulsion is simultaneously output, so that the problems of waste or residual liquid and influence on quality are avoided.
Preferably, in order to increase the backflow space of the residual liquid in the liquid outlet pipe 4, as shown in fig. 7, the insertion column 71 is further provided with a perforation 712 for dredging the suck-back emulsion, and particularly for a relatively small-sized emulsion pump, since the pump body 2 has a small volume, a tight internal space, and a small residual liquid suck-back space, the perforation 712 is provided on the insertion column 71 of the pipe valve 7 for dredging the suck-back emulsion, thereby effectively enhancing the suck-back effect.
Optimize the 2 structure of the pump body again, in order to let the circulation of the air pressure in the stock solution bottle, just enable the emulsion pump and can normally take the stock solution out, therefore should set up in the pump body 2 and carry out gas exchange's structure with the outside. As shown in fig. 1, 5 and 8, the side wall of the pump body 2 is further provided with a ventilation opening 21 communicating with the outside, and the ventilation opening 21 is located at a position higher than the connection ring 61. When the user operation pump head 2 pushed down, drain pipe 4 moved down, pushed away piston 5 to the pump body 2 bottom, and here simultaneously, go up ring 61 and lantern ring 52 separation for outside air accessible scavenge port 21 gets into and takes a breath in the pump body 2, makes the inside accessible pump body 2 of stock solution bottle, and with the circulation of outside atmospheric pressure, let the emulsion pump can normally carry out the drawing liquid operation.
On the basis, in order to ensure the sealing effect, as shown in fig. 8, the height of the outer convex ring 41 is the same as that of the collar 52 of the piston 5, the top of the collar 52 is provided with an inner convex ring 521, and the inner convex ring 21 is tightly contacted with the outer wall of the outer convex ring 41. In the process of the air exchange operation, when the pump head 2 is pressed down, the outer convex ring 41 moves downwards along with the liquid outlet pipe 4, the imbibition liquid is squeezed back into the liquid outlet pipe 4 from the movable cavity 8, and is output to the pump head 1 together with the imbibition liquid; meanwhile, the outer convex ring 41 is embedded in the lantern ring 52 and is tightly contacted with the inner convex ring 521 of the lantern ring 52, so that emulsion is prevented from seeping out from a gap formed after the connecting ring 61 is separated from the lantern ring 52 and then flows out of the outer part from the ventilation opening 21, and the sealing effect and the ventilation performance of the pump body 2 are effectively guaranteed.
The structure of the connection ring 61 is optimized, and as shown in fig. 5 and 8, the ring opening of the connection ring 61 is provided with a step 611 which is engaged with the collar 52. When the piston 5 is raised, the collar 52 is butted with the connecting ring 61, and the collar 52 is placed in the connecting ring 61 through the step 611 additionally arranged at the opening of the connecting ring 61, so that the sealing performance and the fixing effect are effectively enhanced.
On the basis, as shown in fig. 1, 5 and 8, the outer wall of the connecting ring 61 is further provided with a reinforcing rib 612 which is abutted against the inner wall of the pump body 2. The reinforcing ribs 612 play a role in enhancing the hardness of the connection ring 61; on the other hand, the reinforcing rib 612 facilitates positioning, and the outer convex ring 41 is arranged in the connecting ring 61, and the reinforcing rib 612 is arranged outside the connecting ring 61, so that the two are mutually interfered, the concentricity of the mutual alignment of the connecting ring 61 and the lantern ring 52 is effectively improved, accurate splicing alignment is realized, and the movable cavity 8 formed by splicing the connecting ring 61 and the lantern ring 52 has better sealing performance.
As shown in fig. 1, 2, 5 and 8, the elastic return mechanism 6 of the lotion pump comprises a spring 62, a spacer 63 and a spring 62 fixing sleeve 64 on the outer wall of the liquid outlet pipe 4, wherein the spacer 63 is sleeved with the liquid outlet pipe 4 and is embedded in the pump body 2 to be matched with the fixing sleeve 64 to form a movable groove of the spring 62; still be equipped with matched with helicitic texture 65 in fixed cover 64 and the spacer 63 for the pump head 1 is detained on the pump body 2 during the shrink, so that under the long-time state of keeping sealed, avoids pump head 1 to receive the exogenic action to push down, unexpected liquid.
On above-mentioned basis, in order to avoid the pump body 2 locking back, the stock solution bottle is in the transportation, and when the stock solution bottle was emptyd or the slope was placed by external force, the stock solution led to the stock solution to receive the pollution in the 3 outflow pump bodies of imbibition mouth 3. Therefore, as shown in fig. 5 to 7, the bottom of the pipe valve 7 is further provided with a liquid blocking ring 75 extending downward, and when the elastic resetting mechanism 6 is in a locked state, the liquid blocking ring 75 abuts against the inner wall of the liquid suction port 3 to seal the liquid outlet of the liquid suction port 3 and prevent the stored liquid from flowing out.
Preferably, as shown in fig. 1, 2, 5 and 8, the joint of the pump body 2 and the liquid suction port 3 further comprises a valve ball 9 and a moving cavity 90 of the valve ball 9, wherein the upper and lower openings of the moving cavity 90 are smaller than the valve ball 9, so that the valve ball 9 moves up and down in the moving cavity 90 to open or close the liquid suction port 3.
When a user operates the emulsion pump to press down the pump head 1, emulsion in the pump body 2 is sent out, and the valve ball 9 is positioned at the bottom of the movable cavity 90 to seal the liquid suction port 3; when the liquid outlet pipe 4 rises, the valve ball 9 rises under the action of the piston 5, the cavity opening is opened, and the emulsion is pumped into the pump body 2 from the liquid suction port 3; when the liquid outlet pipe 4 stops to stop rising, the valve ball 9 resets to block the liquid suction port 3, thereby effectively controlling the output emulsion component.
On the basis, as shown in fig. 5, the clamping groove 91 of the liquid blocking ring 75 is arranged on the outer edge of the upper opening of the movable cavity 90, and when the elastic resetting mechanism 6 is in a locking state, the liquid blocking ring 75 abuts against the inner wall of the opening of the liquid suction port 3, and meanwhile, the liquid blocking ring 75 is inserted into the clamping groove 91, so that the sealing effect of blocking the liquid outlet of the liquid suction port 3 is further enhanced.
As the use scene is mostly a bathroom or a place easy to seep water, as shown in figure 2, the lotion pump further comprises a waterproof sleeve 43 sleeved on the outer wall of the liquid outlet pipe 4, the waterproof sleeve 43 is fastened and fixed with the upper end of the spacer 63, and the phenomenon that the external liquid seeps into the elastic reset mechanism 6 to cause the spring 62 to age and rust, damage, influence on the rebound effect and service life is avoided.
Variations and modifications to the above-described embodiments may occur to those skilled in the art based upon the disclosure and teachings of the above specification. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and variations of the present invention are also intended to fall within the scope of the appended claims. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (7)
1. An emulsion pump with a suck-back function comprises a pump head and a pump body which are connected with each other, wherein a liquid suction port is arranged at the bottom of the pump body, a liquid outlet pipe, a piston and an elastic reset mechanism are arranged in the pump body, and the liquid outlet pipe moves up and down in the pump body under the action of the elastic reset mechanism; the device is characterized by further comprising a pipe valve arranged at the pipe orifice of the liquid outlet pipe, the piston is provided with a through hole aligned with the pipe orifice, and the pipe valve is sleeved in the through hole and is opened and closed along with the displacement of the liquid outlet pipe to control liquid outlet;
the pipe orifice of the liquid outlet pipe is also provided with an outer convex ring, the bottom of the elastic resetting mechanism is provided with a connecting ring extending towards the piston, the piston is provided with a lantern ring sleeved with the connecting ring, and a movable cavity of the outer convex ring is formed between the inner wall of the connecting ring sleeved with the lantern ring and the outer wall of the liquid outlet pipe;
the through hole of the piston is formed by enclosing a convex edge which is arranged below the lantern ring and extends inwards, the peripheral wall of the pipe valve is also provided with a sealing structure which is in contact fit with the through hole, and the sealing structure is an upper convex ring and a lower convex ring which are arranged in a step shape; when the pipe valve moves upwards along with the liquid outlet pipe, the upper convex ring is firstly contacted with the inner wall of the through hole, so that the pipe valve firstly seals the through hole to stop liquid outlet, and the pipe valve continuously moves upwards in a state that the upper convex ring is kept contacted with the inner wall of the through hole; meanwhile, the outer convex ring moves upwards in the movable cavity, and the emulsion is sucked back into the movable cavity from the liquid outlet pipe until the lower convex ring is abutted against the through hole;
the pipe valve comprises an inserted column and a valve cover, and the valve cover and the bottom of the piston are spliced and covered to open and close the through hole; the inserted column is a flat column body, and both sides of the top end of the inserted column are provided with clasps; the inner wall of the liquid outlet pipe is provided with an inner buckling edge buckled with the buckle, so that the pipe valve is fixedly spliced with the liquid outlet pipe through the inserted column; the connection part of the lower end of the insert column and the valve cover is provided with the upper convex ring and the lower convex ring, the diameter of the upper convex ring is smaller than that of the lower convex ring, and the ring wall of the lower convex ring is gradually enlarged towards the valve cover from top to bottom; the inserting column is also provided with a perforation for dredging the suck-back emulsion.
2. A lotion pump according to claim 1, wherein the pump body has a venting port in the side wall thereof for communication with the exterior thereof, said venting port being located at a position higher than the connection ring; when the pump head is depressed, the connecting ring separates from the collar and performs a venting operation through the venting port.
3. An emulsion pump according to claim 2, wherein the outer convex ring has the same height as the collar of the piston, and an inner convex ring is provided on the top of the collar and is in close contact with the outer wall of the outer convex ring.
4. A lotion pump according to claim 1, characterized in that the ring mouth of the connecting ring is provided with a step for engagement with a collar.
5. A lotion pump according to claim 4, wherein the outer wall of the connecting ring is further provided with a reinforcing rib which abuts against the inner wall of the pump body.
6. A lotion pump according to any one of claims 1 to 5, wherein the elastic return mechanism comprises a spring, a spacer bush and a spring fixing bush on the outer wall of the liquid outlet pipe, the spacer bush is sleeved with the liquid outlet pipe and is embedded in the pump body to form a movable groove of the spring in cooperation with the fixing bush; the fixed sleeve and the spacer sleeve are also internally provided with matched thread structures, so that the pump head is screwed on the pump body when being contracted.
7. An emulsion pump according to claim 6, wherein the bottom of the tube valve is further provided with a liquid blocking ring extending downwards, and when the elastic return mechanism is in the locked state, the liquid blocking ring abuts against the inner wall of the liquid suction port to seal the liquid discharged from the liquid suction port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/103929 WO2019033514A1 (en) | 2017-08-18 | 2017-09-28 | Emulsion pump having back suction function |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017107102175 | 2017-08-18 | ||
| CN201710710217 | 2017-08-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107472683A CN107472683A (en) | 2017-12-15 |
| CN107472683B true CN107472683B (en) | 2023-04-11 |
Family
ID=60584435
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710841745.4A Active CN107472683B (en) | 2017-08-18 | 2017-09-18 | Emulsion pump with suck-back function |
| CN201721200176.7U Withdrawn - After Issue CN207157875U (en) | 2017-08-18 | 2017-09-18 | A kind of emulsion pumps with resorption function |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721200176.7U Withdrawn - After Issue CN207157875U (en) | 2017-08-18 | 2017-09-18 | A kind of emulsion pumps with resorption function |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN107472683B (en) |
| WO (1) | WO2019033514A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107472683B (en) * | 2017-08-18 | 2023-04-11 | 潘玉霞 | Emulsion pump with suck-back function |
| CN109963611A (en) * | 2019-02-14 | 2019-07-02 | 璞真生活有限公司 | Care instrument |
| WO2020164047A1 (en) * | 2019-02-14 | 2020-08-20 | 璞真生活有限公司 | Healthcare instrument |
| WO2021208684A1 (en) * | 2020-04-13 | 2021-10-21 | 浙江晟祺实业有限公司 | Improved spray head structure |
| CN113277201B (en) * | 2021-05-31 | 2022-07-26 | 世捷包装制品(清远)有限公司 | Emulsion bottle capable of sucking back emulsion |
| CN113772274A (en) * | 2021-08-23 | 2021-12-10 | 东莞市峰众新材料有限公司 | Glass bottle assembly |
| CN114906475B (en) * | 2022-05-20 | 2023-10-20 | 珠海智润护理用品有限公司 | Suck-back structure and pressing pump |
| CN115557086B (en) * | 2022-09-29 | 2024-03-12 | 浙江锦盛新材料股份有限公司 | Emulsion pump, emulsion pump intubation equipment and intubation technology |
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- 2017-09-18 CN CN201721200176.7U patent/CN207157875U/en not_active Withdrawn - After Issue
- 2017-09-28 WO PCT/CN2017/103929 patent/WO2019033514A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| CN207157875U (en) | 2018-03-30 |
| CN107472683A (en) | 2017-12-15 |
| WO2019033514A1 (en) | 2019-02-21 |
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