WO2019033514A1 - 一种具有回吸功能的乳液泵 - Google Patents

一种具有回吸功能的乳液泵 Download PDF

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Publication number
WO2019033514A1
WO2019033514A1 PCT/CN2017/103929 CN2017103929W WO2019033514A1 WO 2019033514 A1 WO2019033514 A1 WO 2019033514A1 CN 2017103929 W CN2017103929 W CN 2017103929W WO 2019033514 A1 WO2019033514 A1 WO 2019033514A1
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WIPO (PCT)
Prior art keywords
ring
wall
hole
liquid
pump
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PCT/CN2017/103929
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English (en)
French (fr)
Inventor
祝广伟
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潘玉霞
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Publication of WO2019033514A1 publication Critical patent/WO2019033514A1/zh

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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
    • 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
    • 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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to an emulsion pump, in particular to an emulsion pump with a suckback function.
  • the lotion pump on the market that is, a pump similar to the bottled shampoo, can output the emulsion in the bottle by pressing the pump head.
  • the pump head retains residual liquid, and the emulsion remaining in the pump head is easily exposed to external pollution or touched by the outside, even dripping, causing waste, or getting wet and staining the surrounding environment.
  • the lotion pump is filled with other liquids such as oil, and its defects are more obvious. Therefore, major manufacturers have introduced a lotion pump with a suckback function, and the internal structure and the air pressure of the pump head telescopic process cooperate to allow the pump head to suck back the emulsion on the pump nozzle.
  • the back-acting emulsion pump of the prior art has an internal structure of the pump body that requires an effective movable mechanism and a piston to move together, and forms a storage space for accommodating the sucking emulsion, so that the suckback function can be realized.
  • the internal space is limited, the space for accommodating the sucking emulsion is small, and the suckback force is insufficient, resulting in no obvious suckback effect, or even near, affecting the user experience. Therefore, the existing suckback function
  • the lotion pump can not meet the needs of the development of pumping technology today, and it is also a research problem of major manufacturers.
  • the object of the present invention is to provide an emulsion pump with a suckback function, which improves the internal structure of the pump body, effectively increases the storage space of the suckback emulsion without changing the volume of the pump body, and adjusts the liquid suction mechanism to enhance Rescuing the strength and improving the suckback effect.
  • the invention relates to a lotion pump with a suckback function, comprising a pump head and a pump body connected to each other, a pumping port is arranged at the bottom of the pump body, a pumping pipe, a piston and an elastic resetting mechanism are arranged in the pump body, and the liquid discharging pipe is elastic Under the action of the resetting mechanism, the pump body is vertically displaced; further comprising a pipe valve disposed at the nozzle of the liquid outlet pipe, wherein the piston is provided with a through hole opposite to the pipe mouth, and the pipe valve is sleeved in the through hole, Opening and closing the through hole with the displacement of the liquid outlet tube to control the liquid discharge;
  • the outlet pipe nozzle is further provided with an outer convex ring, and the bottom of the elastic return mechanism is provided with a connecting ring extending toward the piston, and the piston is provided with a collar that is sleeved with the connecting ring, the connecting ring and the collar
  • the inner wall of the sleeve and the outer wall of the liquid outlet tube form an active cavity of the outer convex ring;
  • the through hole of the piston is surrounded by a convex edge extending inwardly of the collar, and the peripheral wall of the pipe valve is further provided with a sealing structure that is in contact with the through hole, and the sealing structure is arranged on a stepped shape.
  • the invention discloses a lotion pump with a suckback function.
  • an outer convex ring is added to the outlet pipe of the pump body, and a collar of the connecting ring and the piston is sleeved at the bottom of the elastic reset mechanism.
  • the movable cavity of the outer convex ring is formed between the inner wall of the connecting ring and the outer wall of the liquid outlet pipe, and the outer convex ring is subjected to suction emulsion or squeeze emulsion operation in the movable cavity.
  • the pipe valve structure for controlling the liquid discharge is improved, and the through hole of the piston is enclosed by a convex edge which is disposed under the collar and extends inward, and is disposed and connected on the peripheral wall of the pipe valve.
  • the sealing structure of the hole contact fit, the sealing structure is two upper and lower convex rings arranged in a stepped manner, and is in contact with the through hole through the upper and lower convex rings successively, so as to stop the liquid discharge first, and then suck back the liquid absorption of the emulsion.
  • the user pushes the pump head so that the liquid discharge pipe moves downward, pushing the piston downward, allowing the pipe valve to cooperate with the piston, opening the outlet pipe nozzle to realize the liquid discharge operation; when the liquid discharge pipe is elastic
  • the pipe valve moves up with the liquid outlet pipe, and the upper and lower convex rings on the pipe valve are in contact with the through holes of the piston, so that the pipe valve first closes the through hole and stops the liquid discharge;
  • the convex ring and the through hole maintain the contact state and continue to move upward, and the outer convex ring also moves up in the movable cavity, gradually opens the suction space of the movable cavity, and passes the residual emulsion on the pump head through the liquid discharge pipe.
  • the emulsion pump of the present invention Compared with the prior art emulsion pump of the same type with a suckback function, the emulsion pump of the present invention, on the one hand, passes through the movable cavity formed by the inner wall of the connecting ring and the outer wall of the outlet pipe as a back
  • the storage space of the absorbing emulsion makes the storage volume larger and absorbs more residual emulsion; on the other hand, through the sealing structure of the upper and lower convex rings of the pipe valve and the through hole of the piston, the pump body stops the liquid first, and then sucks back.
  • the emulsion operation forms an effective suckback mechanism;
  • the outer convex ring acts as a sucking back sucking emulsion, moves the sucking emulsion up in the movable cavity, and gradually opens the sucking space of the movable cavity, and stores the sucking emulsion Since the pump body is sucked back in the state of first closing the liquid, the suctioning emulsion generated by the convex ring moving up on the movable cavity is stronger, effectively improving the suckback effect and making the user experience better.
  • the pipe valve is sleeved with the liquid outlet pipe, and includes a plug column and a valve cover, and the valve cover and the bottom of the piston are spliced and closed to open and close the through hole;
  • the plug column is a flat column body, and the top end is provided on both sides There is a buckle;
  • the inner wall of the liquid outlet pipe is provided with an inner buckle edge that is fastened to the buckle, so that the pipe valve is inserted and fixed with the liquid outlet pipe through the insertion column.
  • the plunger is in the form of a flat cylinder, so that after the tube valve is opened, the emulsion can enter the liquid outlet tube from both sides of the flat insertion post and eject the outside; or return to the side of the insertion column when sucking back.
  • the inner buckle of the inner wall of the liquid outlet pipe is fastened along the buckle of the top end of the plug, and the pipe valve is tightly fixed on the liquid discharge pipe, and is linked with the liquid discharge pipe.
  • the upper end of the insertion post and the valve cover are provided with the upper convex ring and the lower convex ring, the upper convex ring has a smaller diameter than the lower convex ring, and the ring wall of the lower convex ring is from top to bottom. Gradually expand to the bonnet.
  • the two-layer sealing ring is designed. In actual use, when the liquid discharge pipe is pushed up by the pump body and then rises, the piston gradually rises until the collar and the connecting ring collide, and the pipe valve continues to move up with the liquid discharge pipe.
  • the upper convex ring first contacts the inner wall of the through hole of the piston, and the closed through hole stops discharging; then, the liquid discharge pipe continues to move upward by the elastic reset mechanism, and the upper convex ring maintains contact with the inner wall of the through hole State closed through hole
  • the outer convex ring moves up in the movable cavity, gradually open the suction space of the movable cavity, and the residual liquid of the pump head is passed through the liquid outlet pipe, and is sucked into the suction space of the movable cavity until the convexity is convex.
  • the loop is in contact with the through hole to complete the entire suckback process.
  • the pump body is first sealed and discharged, and then the suction operation is performed on the closed basis, thereby effectively controlling the back suction and improving the suckback effect.
  • the insertion post is further provided with a perforation for unblocking the sucking emulsion, in order to increase the return space of the residual liquid in the liquid outlet tube, especially for the thinner emulsion pump, because the volume of the pump body is small, the internal space Tight, the residual liquid has less suction space, so the perforation is enhanced by opening a perforation in the insertion post of the tube valve to enhance the suckback effect.
  • the side wall of the pump body is provided with a ventilation port communicating with the outside, the position of the ventilation port is higher than the connecting ring; when the pump head is pressed, the connecting ring and the sleeve The ring is separated and the air exchange operation is performed through the air exchange port.
  • the emulsion pump can normally withdraw the liquid storage, and thus it is necessary to provide a structure for exchanging with the external gas in the pump body. Therefore, a gas exchange port is disposed on the side wall of the pump body, and the gas exchange port is disposed above the connection ring.
  • the connecting ring is separated from the collar, so that the outside air can enter the pump body through the air exchange port for ventilation, so that the inside of the liquid storage bottle can pass through the pump body and circulate with the external air pressure, so that the emulsion pump can normally perform the liquid pumping operation.
  • the height of the outer collar is the same as the collar of the piston, and the top of the collar is provided with an inner convex ring, and the inner convex ring is in close contact with the outer wall of the outer convex ring.
  • the outer convex ring moves downward with the liquid discharge pipe, and the sucking liquid is squeezed from the movable cavity into the liquid discharge pipe, and the pump head is output together with the liquid discharge;
  • the outer convex ring is in close contact with the inner convex ring of the collar in the collar, so as to prevent the emulsion from oozing out from the gap after the connecting ring and the collar are separated, and then flowing out from the air outlet to effectively ensure the sealing effect, and Ventilation performance of the pump body.
  • connection ring structure is improved, and the ring mouth of the connecting ring is provided with a step that engages with the collar.
  • the outer wall of the connecting ring is further provided with a reinforcing rib that is in contact with the inner wall of the pump body.
  • the reinforcing ribs serve to enhance the hardness of the connecting ring; on the other hand, the reinforcing ribs contribute to the positioning, and since the connecting ring is the outer convex ring, the connecting ring is a reinforcing rib, and the two mutually resist each other, effectively To improve the concentricity of the connecting ring and the collar to each other, to achieve accurate splicing of the alignment, and to make the movable cavity formed by the connection of the connecting ring and the collar, the sealing is better.
  • the elastic reset mechanism of the emulsion pump of the present invention is improved.
  • the elastic reset mechanism comprises a spring, a spacer sleeve and a spring fixing sleeve of the outer wall of the liquid outlet tube.
  • the spacer sleeve is sleeved with the liquid outlet tube and is embedded in the pump body and
  • the fixing sleeve cooperates with each other to form a movable groove of the spring;
  • the fixing sleeve and the spacer sleeve are further provided with a matching thread structure, so that the pump head is buckled when being contracted On the pump body, in the long-term storage state, the pump head is prevented from being pressed by an external force, and the liquid is accidentally discharged.
  • the bottom of the tube valve is further provided with a downwardly extending liquid retaining ring.
  • the liquid retaining ring When the elastic returning mechanism is in the locked state, the liquid retaining ring is in contact with the inner wall of the liquid suction port, and the liquid suction port is closed. liquid.
  • a liquid retaining ring is arranged at the bottom of the valve cover.
  • Figure 1 is an exploded view of a lotion pump having a suckback function according to the present invention
  • Figure 2 is a cross-sectional view showing the unlocked state of the lotion pump of the present invention
  • Figure 3 is a view of the piston structure of the emulsion pump of the present invention 1;
  • Figure 4 is a view of the piston structure of the emulsion pump of the present invention 2;
  • Figure 5 is a cross-sectional view showing the state in which the emulsion pump of the present invention is locked
  • Figure 6 is a structural view of a pipe valve of the lotion pump of the present invention.
  • Figure 7 is a cross-sectional view showing another structure of a tube valve of the emulsion pump of the present invention.
  • Figure 8 is a cross-sectional view showing the lock state of the emulsion pump of the present invention at another angle
  • Figure 9 is a cross-sectional view showing the state of the emulsion pump of the present invention after it is discharged;
  • Figure 10 is a cross-sectional view showing the state in which the tube valve of the emulsion pump of the present invention seals the through hole of the piston;
  • Figure 11 is a cross-sectional view showing the sucking state of the lotion pump of the present invention.
  • the emulsion pump comprises a pump head 1 and a pump body 2 connected to each other.
  • the bottom of the pump body 2 is provided with a liquid suction port 3.
  • the liquid suction port 3 is preferably connected with a straw outside, and the straw is inserted.
  • the pump body 2 is provided with an outlet pipe 4, a piston 5 and an elastic returning mechanism 6.
  • the outlet pipe 4 is connected at one end to the pump head 1, and the other end is sleeved with the piston 5, and is elastic.
  • the pump body 2 Under the action of the reset mechanism 6, the pump body 2 is vertically displaced; the pump body 2 further includes a tube valve 7 disposed at the nozzle of the liquid outlet tube 4, and the piston 5 is provided with a nozzle pair of the liquid outlet tube 4
  • the through hole 51 of the position, the pipe valve 7 is sleeved in the through hole 51, and the opening and closing hole 51 is controlled to discharge the liquid with the displacement of the liquid discharge pipe 4.
  • the outlet of the liquid outlet tube 4 is further provided with a convex ring 41.
  • the bottom of the elastic return mechanism 6 is provided with a connecting ring 61 extending toward the piston 5.
  • the piston 5 is provided with a collar 52 that is sleeved with the connecting ring 61.
  • the inner wall of the connecting ring 61 and the outer ring of the outlet tube 4 and the outer wall of the liquid outlet tube 4 form a movable cavity 8 of the outer convex ring 41.
  • the tube valve 7 is sleeved with the outlet tube 4, and includes a plunger 71 and a valve cover 72.
  • the valve cover 72 The bottom of the piston 5 is spliced and closed to open and close the through hole 51; the insertion post 71 is a flat cylinder, and the top end of the top end is provided with a buckle 711; the inner wall of the liquid discharge pipe 4 is fastened to the buckle 711 The inner buckle edge 42 allows the tube valve 7 to be inserted and fixed to the liquid outlet tube 4 through the insertion post 71.
  • the plunger 71 is a flat cylinder, so that after the tube valve 7 is opened, the emulsion can enter the liquid outlet tube 4 from both sides of the insertion column 71 to eject the outside; or when sucking back, from both sides of the insertion column 71
  • the inner buckle 42 of the inner wall of the liquid outlet tube 4 is fastened to the buckle 711 at the top end of the plunger 71, and the tube valve 7 is tightly fixed on the nozzle of the liquid outlet tube 4, The outlet pipe 4 is linked.
  • the through hole 51 of the piston 5 is surrounded by a protruding edge 511 extending inwardly of the collar 52 , and the peripheral wall of the tube valve 4 is further provided with a contact with the through hole 51 .
  • the sealing structure is an upper convex ring 73 and a lower convex ring 74 disposed at a lower end of the insertion post 71 and the valve cover 72.
  • the upper convex ring 73 has a smaller diameter than the lower convex ring 74, forming a stepped arrangement.
  • the ring wall of the lower convex ring 74 gradually expands from the top to the bottom of the valve cover 72.
  • the liquid discharge tube 4 continues to move upward by the elastic return mechanism 6, and the upper convex ring 73 and the inner wall of the through hole 51 maintain the contact state, and the closed through hole 51 continues to move upward, and at the same time,
  • the outer convex ring 41 moves up in the movable cavity 8, gradually opens the suction space of the movable cavity 8, and passes the residual liquid of the pump head 1 through the liquid discharge pipe 4, and sucks into the suction space of the movable cavity 8, until the lower The collar 74 is in contact with the through hole 51, thereby achieving the entire suckback process.
  • the outer convex ring 41 extrudes the suckback emulsion in the sucking space of the movable cavity 8, collects it in the liquid discharge pipe 4, and outputs it together with the output emulsion to avoid
  • the waste or residue of the emulsion affects the quality of the emulsion.
  • the emulsion pump of the present invention through the above structure, enables the pump body 2 to first close the liquid, and then perform a suckback operation on the closed basis, effectively control the backflow of the residual liquid, improve the suckback effect, and operate in the re-discharging operation.
  • the sucking emulsion is simultaneously output to avoid waste or residual liquid, which affects quality problems.
  • the insertion post 71 is further provided with a perforation 712 for unblocking the sucking emulsion, especially for a thinner emulsion pump. Since the volume of the pump body 2 is small, the internal space is tight, and the residual liquid has a small suction space, the perforation effect is effectively enhanced by opening the perforation 712 on the insertion post 71 of the tube valve 7.
  • the structure of the pump body 2 is optimized.
  • the pump body 2 In order to allow the air pressure in the liquid storage bottle to circulate, the emulsion pump can normally withdraw the liquid storage. Therefore, the pump body 2 should be provided with a structure for exchanging gas with the outside.
  • the side wall of the pump body 2 is further provided with a venting port 21 communicating with the outside, and the venting port 21 is located higher than the connecting ring 61.
  • the height of the outer collar 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, which is convex.
  • the ring 21 is in close contact with the outer wall of the outer collar 41.
  • the first outer ring 41 is in close contact with the inner convex ring 521 of the collar 52, so as to prevent the emulsion from seeping out from the gap after the connecting ring 61 and the collar 52 are separated, and then from the air inlet. 21 out of the outside, effectively guarantee the sealing effect, as well as the ventilation performance of the pump body 2.
  • the structure of the connecting ring 61 is optimized. As shown in FIGS. 5 and 8, the ring of the connecting ring 61 is provided with a step 611 that engages with the collar 52. When the piston 5 is lifted up, the collar 52 is in contact with the connecting ring 61, and the step 611 is added through the ring of the connecting ring 61, so that the collar 52 rests in the connecting ring 61, effectively enhancing the sealing performance and the fixing effect.
  • the outer wall of the connecting ring 61 is further provided with a reinforcing rib 612 which is in contact with the inner wall of the pump body 2.
  • the reinforcing rib 612 serves to enhance the hardness of the connecting ring 61 on the one hand.
  • the reinforcing rib 612 contributes to the positioning. Since the connecting ring 61 is the outer convex ring 41, the connecting ring 61 is a reinforcing rib 612.
  • the elastic reset mechanism 6 of the lotion pump comprises a spring 62, a spacer 63 and a spring 62 fixing sleeve 64 of the outer wall of the liquid outlet tube 4, the spacer sleeve 63 and the outlet tube 4
  • the movable groove of the spring 62 is sleeved and engaged with the fixing sleeve 64 in the pump body 2; the fixing sleeve 64 and the spacer sleeve 63 are further provided with a matching screw structure 65, so that the pump head 1 is contracted.
  • the buckle is fastened to the pump body 2 so as to prevent the pump head 1 from being pressed by an external force and accidentally discharging the liquid in a state of being sealed for a long time.
  • the bottom of the tube valve 7 is further provided with a downwardly extending liquid retaining ring 75.
  • the liquid retaining ring 75 and the liquid absorbing liquid The inner wall of the mouth 3 is in contact with each other, and the liquid suction port 3 is closed to prevent the liquid from flowing out.
  • connection between the pump body 2 and the liquid suction port 3 further includes a valve ball 9 and a moving chamber 90 of the valve ball 9, and the upper and lower chambers of the moving chamber 90 The mouth is smaller than the valve ball 9, so that the valve ball 9 moves up and down within the moving chamber 90, opening or closing the liquid suction port 3.
  • the valve ball 9 When the user operates the emulsion pump to press the pump head 1, the emulsion in the pump body 2 is sent out, the valve ball 9 is at the bottom of the moving chamber 90, and the liquid suction port 3 is blocked; when the liquid outlet tube 4 is lifted up, the role of the piston 5 is Next, the valve ball 9 rises, opens the mouth, and removes the emulsion from The liquid suction port 3 is drawn into the pump body 2; when the liquid discharge pipe 4 stops to rise, the valve ball 9 is reset, and the liquid suction port 3 is blocked, thereby effectively controlling the output emulsion component.
  • the outer edge of the upper cavity of the moving cavity 90 is provided with a clamping groove 91 of the liquid-repellent ring 75, and when the elastic returning mechanism 6 is in the locked state, the blocking The liquid ring 75 is in contact with the inner wall of the nozzle of the liquid suction port 3, and at the same time, the liquid retaining ring 75 is inserted into the clamping groove 91 to further strengthen the sealing effect of blocking the liquid discharge of the liquid suction port 3.
  • the lotion pump of the present invention further includes a waterproof sleeve 43 sleeved on the outer wall of the outlet tube 4, and the waterproof sleeve 43 and the upper end of the spacer 63 are buckled.
  • the fixing is fixed to prevent the external liquid from infiltrating into the elastic reset mechanism 6, and the spring 62 is aged and rusted, causing damage, affecting the rebound effect and the service life.

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  • Closures For Containers (AREA)
  • Reciprocating Pumps (AREA)

Abstract

一种具有回吸功能的乳液泵，包括泵头（1）和泵体（2），泵体（2）底部设有吸液口（3），泵体（2）内设有出液管（4）、活塞（5）及弹性复位机构（6）；还包括出液管（4）的管阀（7），活塞（5）设有通孔（51），管阀（7）套接于通孔（51）内，随出液管（4）的位移开闭通孔（51）控制出液；出液管（4）管口还设有外凸环（41），弹性复位机构（6）设有连接环（61），活塞（5）设有套环（52），连接环（61）与套环（52）套接的内壁与出液管（4）外壁形成外凸环（41）的活动腔（8）；管阀（7）周壁设有与通孔（51）内壁接触配合的上凸环（73）、下凸环（74），并在管阀（7）随出液管（4）回升时，上凸环（73）先与通孔（51）内壁贴触，使得管阀（7）先封闭通孔（51）停止出液，并以上凸环（73）与通孔（51）内壁保持贴触上移；同时外凸环（41）打开活动腔（8）回吸乳液，至下凸环（74）与通孔（51）抵触为止。通过对乳液泵结构的改进，在不改变泵体（2）体积的情况下，增大回吸空间，提高回吸效果。

Description

一种具有回吸功能的乳液泵 技术领域
本发明涉及一种乳液泵，尤其涉及一种具有回吸功能的乳液泵。
背景技术
目前市面上的乳液泵，即类似瓶装洗头水上使用的抽液泵，可通过按压泵头输出瓶装内的乳液。但在实际使用中，乳液泵出液后，泵头留存有余液，残留在泵头内的乳液容易受到外界污染或受到外界触碰，甚至滴落造成浪费，或弄湿弄脏周边环境，若乳液泵装着油等其他液体，其缺陷更具明显。因此，各大生产厂家推出具有回吸功能的乳液泵，通过内部结构与泵头伸缩过程的气压配合，让回升的泵头同时将泵嘴上的乳液回吸。
现有技术的回吸功能乳液泵，泵体内部结构需设备有效的活动机构与活塞结合运动，并形成收纳回吸乳液的收纳空间，才能实现回吸功能。但由于泵体本身结构紧密，内部空间有限，收纳回吸乳液的空间较小，而且回吸力度不足，导致回吸效果不明显，甚至近乎没有，影响用户体验，因此，现有回吸功能的乳液泵已不能满足现今抽液泵技术发展的需求，同时也是目前各大生产厂家的研究难题。
发明内容
本发明目的在于提供一种具有回吸功能的乳液泵，对泵体内部结构作改进，在不改变泵体的体积下，有效地增大回吸乳液的收纳空间，并调整抽液机构，增强回吸力度，提高回吸效果。
为了达到上述目的给出，本发明的技术方案：
一种具有回吸功能的乳液泵，包括相互连接的泵头和泵体，泵体底部设有吸液口，泵体内设有出液管、活塞以及弹性复位机构，所述出液管在弹性复位机构的作用下，在泵体内上下位移；还包括设于出液管管口的管阀,所述活塞设有与管口对位的通孔，所述管阀套接于通孔内，随出液管的位移开闭通孔控制出液；
所述出液管管口还设有外凸环，所述弹性复位机构底部设有向活塞延伸的连接环，所述活塞设有与连接环套接的套环，所述连接环与套环套接后的内壁，与出液管的外壁之间形成外凸环的活动腔；
所述活塞的通孔由设于套环下向内延伸的凸沿围闭而成，所述管阀周壁还设有与通孔接触配合的密封结构,所述密封结构为台阶状设置的上凸环和下凸环；当管阀随出液管上移时，所述上凸环先与通孔内壁贴触，使得管阀先封闭通孔停止出液，并以上凸环与通孔内壁保持贴触状态继续上移；同时所述外凸环在活动腔内上移，将乳液从出液管回吸于活动腔内， 至所述下凸环与通孔抵触为止。
本发明一种具有回吸功能的乳液泵，与现有技术相比，泵体内的出液管管口增设外凸环，并在弹性复位机构底部设有连接环与活塞的套环套接，使得连接环与套环拼接后的内壁，与出液管的外壁之间形成外凸环的活动腔，让外凸环在活动腔内进行抽吸乳液或挤压乳液操作。与之相配合地，还对控制出液的管阀结构作改进，所述活塞的通孔由设于套环下,向内延伸的凸沿围闭而成,并在管阀周壁设置与通孔接触配合的密封结构,该密封结构为两层台阶状设置的上、下凸环，并通过上、下凸环先后与通孔接触配合，实现先停止出液，再回吸乳液的吸液功能，让回吸效果更好。在实际使用中，用户推压泵头，使得出液管下移，推使活塞向下运动，让管阀与活塞配合，打开出液管管口，实现出液操作；当出液管在弹性复位机构的作用下复位回升时，管阀随出液管上移，管阀上的上、下凸环先后与活塞的通孔接触，使得管阀先封闭通孔，停止出液；再通过上凸环与通孔维持贴触状态并继续上移，同时所述外凸环也在活动腔内上移，逐渐打开活动腔的回吸空间，将泵头上残留的乳液，通过出液管回吸于活动腔的回吸空间内，直至下凸环与通孔抵触为止，完成整个回吸过程；当出液管再被泵头下压时，所述外凸环将活动腔的回吸空间内的回吸乳液挤出，汇集于出液管，与输出乳液一起输出，避免乳液的浪费或残留，影响乳液质量。
与现有技术同类型具有回吸功能的乳液泵相比，本发明的乳液泵，一方面，通过连接环与套环套接后的内壁，与出液管外壁之间形成的活动腔作为回吸乳液的存储空间，使得存液容积更大，吸纳残留乳液更多；另一方面，通过管阀的上下凸环与活塞通孔的密封结构，让泵体先停止出液，再进行回吸乳液操作，形成有效的回吸机制；所述外凸环从中起到抽压回吸乳液的作用，在活动腔内上移抽吸乳液，并逐渐打开活动腔的回吸空间，收纳回吸乳液；由于泵体是在先封闭出液的状态下进行回吸操作，因而外凸环在活动腔上移所产生的抽吸乳液力度更强，有效地提高回吸效果，让用户体验更佳。
进一步的，所述管阀与出液管套接，包括插柱和阀盖，所述阀盖与活塞底部拼接盖合开闭通孔；所述插柱呈扁状柱体，顶端两侧设有扣钩；所述出液管内壁设有与扣钩相扣接的内扣沿，让管阀通过插柱与出液管插接固定。一方面，所述插柱呈扁状的柱体，使得管阀打开后，乳液可从扁状的插柱两侧进入出液管内，喷出外部；或回吸时，从插柱两侧回流到活动腔内；另一方面，通过出液管内壁的内扣沿与插柱顶端的扣环扣接，将管阀紧密地固定在出液管上，与出液管联动。
再进一步的，所述插柱下端与阀盖的连接处设有所述上凸环和下凸环，所述上凸环直径少于下凸环，且下凸环的环壁从上往下向阀盖逐渐扩大。两层的密封环设计，在实际使用中，当出液管被泵体下压出液后回升时，活塞逐渐提升，至套环与连接环抵触为止，而管阀随出液管继续上移，所述上凸环先与活塞通孔内壁贴触，密闭通孔停止出液；然后，出液管在弹性复位机构的作用下继续上移，所述上凸环与通孔内壁维持贴触状态密闭通孔继 续上移，同时所述外凸环在活动腔内上移，逐渐打开活动腔的回吸空间，将泵头的残留余液通过出液管，吸入活动腔的回吸空间内，直至下凸环与通孔抵触为止，完成整个回吸过程。在上述结构的配合下，让泵体实现先封闭出液，再在封闭的基础上进行回吸操作，有效地控制余液回吸，提高回吸效果。
在上述基础上，所述插柱上还设有用于疏通回吸乳液的穿孔，为了增加出液管内余液的回流空间，特别是对于体积较细的乳液泵，由于泵体体积少，内部空间紧密，余液回吸空间少，因而通过在管阀的插柱上开设穿孔，疏通回吸乳液，增强回吸效果。
进一步对泵体结构作改进，所述泵体侧壁设有与外部连通的换气口，所述换气口所处位置高于连接环；当泵头下压时，所述连接环与套环分离，并通过换气口进行换气操作。为了让储液瓶内气压流通，才能让乳液泵能正常抽出储液，因而需要在泵体内设置与外部气体交换的结构。因此，在泵体侧壁设置换气口，所述换气口设于高于连接环上方，当用户操作泵头下压时，出液管下移，将活塞推至泵体底部，在此同时，所述连接环与套环分离，使得外部空气可通过换气口进入泵体内进行换气，使得储液瓶内部可通过泵体，与外部气压流通，让乳液泵能正常进行抽液操作。
在上述基础上，为了保证密封效果，所述外凸环的高度与活塞的套环相同，所述套环顶部设有内凸环，所述内凸环与外凸环外壁紧密接触。在上述换气操作的过程中，泵头下压时，所述外凸环随出液管下移，将回吸液从活动腔中挤回出液管内，与出液一起输出泵头；同时外凸环嵌接于套环内与套环的内凸环紧密接触，避免乳液从连接环与套环分离后的缺口中渗出，再从换气口流出外部，有效地保障密封效果，以及泵体的换气性能。
进一步对所述连接环结构作改进，所述连接环的环口设有与套环嵌接的台阶。当活塞回升时，套环与连接环抵触拼接，通过连接环环口增设的台阶，使得套环搁置在连接环内，有效地增强密封性能及固定效果。
在上述基础上，所述连接环外壁还设有与泵体内壁抵触的加强筋。所述加强筋一方面起到增强连接环的硬度作用；另一方面，加强筋有助于定位，由于连接环内为所述外凸环，连接环外为加强筋，两者相互抵触，有效地提高连接环与套环相互对位的同心度，实现准确拼接对位，让连接环与套环拼接形成的活动腔，密封性更好。
进一步对本发明乳液泵的弹性复位机构作改进，所述弹性复位机构包括弹簧、隔套以及出液管外壁的弹簧固定套，所述隔套与出液管套接，并嵌接于泵体内与固定套相互配合形成弹簧的活动槽；所述固定套与隔套内还设有相配合的螺纹结构，使得泵头收缩时旋扣于 泵体上，以便在长时间封存状态下，避免泵头受外力作用下压，意外出液。
在上述基础上，所述管阀底部还设有向下延伸的挡液环，当所述弹性复位机构处于锁紧状态时，所述挡液环与吸液口内壁抵触，封闭吸液口出液。为了避免泵体锁紧后，储液瓶在运输过程中，储液瓶受外力倾倒或倾斜放置时，储液从吸液口流出泵体内造成污染，因此，在阀盖底部设置挡液环，让泵体处于锁紧状态时，挡液环与吸液口管口内壁抵触，封闭吸液口管口，避免储液流出。
附图说明
图1为本发明一种具有回吸功能的乳液泵爆炸图；
图2为本发明乳液泵解锁状态的剖视图；
图3为本发明乳液泵的活塞结构视图1；
图4为本发明乳液泵的活塞结构视图2；
图5为本发明乳液泵锁紧状态的剖视图；
图6为本发明乳液泵的管阀结构视图；
图7为本发明乳液泵的另一种管阀结构剖视图；
图8为本发明乳液泵另一个角度的锁紧状态剖视图；
图9为本发明乳液泵出液后回升状态剖视图；
图10为本发明乳液泵的管阀封止活塞通孔的状态剖视图；
图11为本发明乳液泵的回吸状态剖视图。
具体实施方式
结合附图说明本发明的一种具有回吸功能的乳液泵。
如图1至4所示，该乳液泵，包括相互连接的泵头1和泵体2，泵体2底部设有吸液口3，所示吸液口3外优选连接吸管，让吸管伸入储液瓶内；所述泵体2内设有出液管4、活塞5以及弹性复位机构6，所述出液管4一端与泵头1连接，另一端与活塞5套接，并在弹性复位机构6的作用下，在泵体2内上下位移；所述泵体2内还包括设于出液管4管口的管阀7,所述活塞5设有与出液管4管口对位的通孔51，所述管阀7套接于通孔51内，随出液管4的位移开闭通孔51控制出液。
所述出液管4管口还设有外凸环41，所述弹性复位机构6底部设有向活塞5延伸的连接环61，所述活塞5设有与连接环61套接的套环52，所述连接环61与套环52套接后的内壁，与出液管4的外壁之间形成外凸环41的活动腔8。
如图5至6所示，所述管阀7与出液管4套接，包括插柱71和阀盖72，所述阀盖72 与活塞5底部拼接盖合开闭通孔51；所述插柱71呈扁状柱体，顶端两侧设有扣钩711；所述出液管4内壁设有与扣钩711相扣接的内扣沿42，让管阀7通过插柱71与出液管4插接固定。
一方面，插柱71呈扁状的柱体，使得管阀7打开后，乳液可从插柱71两侧进入出液管4内，喷出外部；或回吸时，从插柱71两侧回流到活动腔8内；另一方面，通过出液管4内壁的内扣沿42与插柱71顶端的扣环711扣接，将管阀7紧密地固定在出液管4管口上，与出液管4联动。
如图8至11所示，所述活塞5的通孔51由设于套环52下向内延伸的凸沿511围闭而成，所述管阀4周壁还设有与通孔51接触配合的密封结构,所述密封结构为设置在插柱71下端与阀盖72连接处的上凸环73和下凸环74，所述上凸环73直径少于下凸环74，形成台阶状设置，且下凸环74的环壁从上往下向阀盖72逐渐扩大。
在实际使用中，如图9至10所示，当出液管4被泵头1下压出液后回升时，活塞5逐渐提升，至套环52与连接环61抵触为止，而管阀7随出液管4继续上移，所述上凸环73先与活塞5通孔51内壁贴触，密闭通孔51停止出液。
然后，如图10至11所示，出液管4在弹性复位机构6的作用下继续上移，所述上凸环73与通孔51内壁维持贴触状态密闭通孔51继续上移，同时所述外凸环41在活动腔8内上移，逐渐打开活动腔8的回吸空间，将泵头1的残留余液通过出液管4，吸入活动腔8的回吸空间内，直至下凸环74与通孔51抵触为止，从而实现整个回吸过程。
当出液管4再被泵头1下压时，所述外凸环41将活动腔8的回吸空间内的回吸乳液挤出，汇集于出液管4，与输出乳液一起输出，避免乳液的浪费或残留，影响乳液质量。
本发明的乳液泵，通过上述结构，使得泵体2实现先封闭出液，再在封闭的基础上进行回吸操作，有效地控制余液回吸，提高回吸效果，并在再出液操作中，将回吸乳液同时输出，避免浪费或残留液，影响质量问题。
优选地，为了增加出液管4内余液的回流空间，如图7所示，所述插柱71上还设有用于疏通回吸乳液的穿孔712，特别是对于体积较细的乳液泵，由于泵体2体积少，内部空间紧密，余液回吸空间少，因而通过在管阀7的插柱71上开设穿孔712，疏通回吸乳液，有效地增强回吸效果。
再对泵体2结构作优化，为了让储液瓶内气压流通，才能使乳液泵能正常抽出储液，因而泵体2内应设置与外部进行气体交换的结构。如图1、5、8所示，所述泵体2侧壁还设有与外部连通的换气口21，所述换气口21所处位置高于连接环61。当用户操作泵头2下压时，出液管4下移，将活塞5推至泵体2底部，在此同时，所述连接环61与套环52分离，使得外部空气可通过换气口21进入泵体2内进行换气，使得储液瓶内部可通过泵体2， 与外部气压流通，让乳液泵能正常进行抽液操作。
在上述基础上，为了保证密封效果，如图8所示，所述外凸环41的高度与活塞5的套环52相同，所述套环52顶部设有内凸环521，所述内凸环21与外凸环41外壁紧密接触。在上述换气操作的过程中，泵头2下压时，外凸环41随出液管4下移，将回吸液从活动腔8挤回出液管4内，与出液一起输出泵头1；同时外凸环41嵌接于套环52内与套环52的内凸环521紧密接触，避免乳液从连接环61与套环52分离后的缺口中渗出，再从换气口21流出外部，有效地保障密封效果，以及泵体2的换气性能。
再对所述连接环61的结构作优化，如图5、8所示，所述连接环61的环口设有与套环52嵌接的台阶611。当活塞5回升时，套环52与连接环61抵触拼接，通过连接环61环口增设的台阶611，使得套环52搁置在连接环61内，有效地增强密封性能和固定效果。
在上述基础上，如图1、5、8所示，所述连接环61外壁还设有与泵体2内壁抵触的加强筋612。所述加强筋612一方面起到增强连接环61的硬度作用；另一方面，加强筋612有助于定位，由于连接环61内为所述外凸环41，连接环61外为加强筋612，两者相互抵触，有效地提高连接环61与套环52相互对位的同心度，实现准确拼接对位，使得连接环61与套环52拼接形成的活动腔8，密封性更好。
如图1、2、5、8所示，该乳液泵的弹性复位机构6包括弹簧62、隔套63以及出液管4外壁的弹簧62固定套64，所述隔套63与出液管4套接，并嵌接于泵体2内与固定套64相互配合形成弹簧62的活动槽；所述固定套64与隔套63内还设有相配合的螺纹结构65，使得泵头1收缩时旋扣于泵体2上，以便在长时间封存状态下，避免泵头1受外力作用下压，意外出液。
在上述基础上，为了避免泵体2锁紧后，储液瓶在运输过程中，储液瓶受外力倾倒或倾斜放置时，储液从吸液口3流出泵体2内，导致储液受污染。因此，如图5至7所示，所述管阀7底部还设有向下延伸的挡液环75，当所述弹性复位机构6处于锁紧状态时，所述挡液环75与吸液口3内壁抵触，封闭吸液口3出液，避免储液流出。
优选地，如图1、2、5、8所示，所述泵体2与吸液口3的连接处还包括阀球9以及阀球9的移动腔90，所述移动腔90的上下腔口小于阀球9，使得阀球9在移动腔90内上下运动，打开或关闭吸液口3。
当用户操作乳液泵下压泵头1时，将泵体2内的乳液送出，阀球9处于移动腔90底部，封堵吸液口3；当出液管4回升时，在活塞5的作用下，阀球9上升，打开腔口，将乳液从 吸液口3抽进泵体2内；当出液管4停止回升时，阀球9复位，封堵吸液口3，进而有效地控制输出的乳液分量。
在上述基础上，如图5所示，所述移动腔90的上腔口外沿设有所述挡液环75的夹槽91，当所述弹性复位机构6处于锁紧状态时，所述挡液环75与吸液口3管口内壁抵触，同时使得挡液环75插入夹槽91内，以便进一步加强封堵吸液口3出液的密封效果。
由于使用场景多为浴室或容易渗水的地方，如图2所示，本发明的乳液泵还包括套设在出液管4外壁的防水套43，所述防水套43与隔套63的上端扣接固定，避免外液渗入弹性复位机构6内，让弹簧62老化生锈，造成损坏，影响回弹效果及使用寿命。
根据上述说明书的揭示和教导，本发明所属领域的技术人员还可以对上述实施方式进行变更和修改。因此，本发明并不局限于上面揭示和描述的具体实施方式，对本发明的一些修改和变更也应当落入本发明的权利要求的保护范围内。此外，尽管本说明书中使用了一些特定的术语，但这些术语只是为了方便说明，并不对本发明构成任何限制。

Claims (10)

  1. 一种具有回吸功能的乳液泵，包括相互连接的泵头和泵体，泵体底部设有吸液口，泵体内设有出液管、活塞以及弹性复位机构，所述出液管在弹性复位机构的作用下，在泵体内上下位移；其特征在于，还包括设于出液管管口的管阀,所述活塞设有与管口对位的通孔，所述管阀套接于通孔内，随出液管的位移开闭通孔控制出液；
    所述出液管管口还设有外凸环，所述弹性复位机构底部设有向活塞延伸的连接环，所述活塞设有与连接环套接的套环，所述连接环与套环套接后的内壁，与出液管的外壁之间形成外凸环的活动腔；
    所述活塞的通孔由设于套环下向内延伸的凸沿围闭而成，所述管阀周壁还设有与通孔接触配合的密封结构,所述密封结构为台阶状设置的上凸环和下凸环；当管阀随出液管上移时，所述上凸环先与通孔内壁贴触，使得管阀先封闭通孔停止出液，并以上凸环与通孔内壁保持贴触状态继续上移；同时所述外凸环在活动腔内上移，将乳液从出液管回吸于活动腔内，至所述下凸环与通孔抵触为止。
  2. 根据权利要求1所述的乳液泵，其特征在于，所述管阀包括插柱和阀盖，所述阀盖与活塞底部拼接盖合开闭通孔；所述插柱呈扁状柱体，顶端两侧设有扣钩；所述出液管内壁设有与扣钩相扣接的内扣沿，让管阀通过插柱与出液管插接固定。
  3. 根据权利要求2所述的乳液泵，其特征在于，所述插柱下端与阀盖的连接处设有所述上凸环和下凸环，所述上凸环直径少于下凸环，且下凸环的环壁从上往下向阀盖逐渐扩大。
  4. 根据权利要求3所述的乳液泵，其特征在于；所述插柱上还设有用于疏通回吸乳液的穿孔。
  5. 根据权利要求1所述的乳液泵，其特征在于，所述泵体侧壁设有与外部连通的换气口，所述换气口所处位置高于连接环；当泵头下压时，所述连接环与套环分离，并通过换气口进行换气操作。
  6. 根据权利要求5所述的乳液泵，其特征在于，所述外凸环的高度与活塞的套环相同，所述套环顶部设有内凸环，所述内凸环与外凸环外壁紧密接触。
  7. 根据权利要求1所述的乳液泵，其特征在于，所述连接环的环口设有与套环嵌接的台阶。
  8. 根据权利要求7所述的乳液泵，其特征在于，所述连接环外壁还设有与泵体内壁抵触的加强筋。
  9. 根据权利要求1至8任一项所述的乳液泵，其特征在于，所述弹性复位机构包括弹簧、隔套以及出液管外壁的弹簧固定套，所述隔套与出液管套接，并嵌接于泵体内与固定套相互配合形成弹簧的活动槽；所述固定套与隔套内还设有相配合的螺纹结构，使得泵头收缩时旋扣于泵体上。
  10. 根据权利要求9所述的乳液泵，其特征在于，所述管阀底部还设有向下延伸的 挡液环，当所述弹性复位机构处于锁紧状态时，所述挡液环与吸液口内壁抵触，封闭吸液口出液。
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