CN212862470U - Pressing pump head - Google Patents

Pressing pump head Download PDF

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Publication number
CN212862470U
CN212862470U CN202021008357.1U CN202021008357U CN212862470U CN 212862470 U CN212862470 U CN 212862470U CN 202021008357 U CN202021008357 U CN 202021008357U CN 212862470 U CN212862470 U CN 212862470U
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CN
China
Prior art keywords
pump
pressing
elastic body
head
rod
Prior art date
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Active
Application number
CN202021008357.1U
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Chinese (zh)
Inventor
金钟声
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Jinyuan Cosmetics Co ltd
Original Assignee
Shanghai Jinyuan Cosmetics Co ltd
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Publication date
Application filed by Shanghai Jinyuan Cosmetics Co ltd filed Critical Shanghai Jinyuan Cosmetics Co ltd
Priority to CN202021008357.1U priority Critical patent/CN212862470U/en
Application granted granted Critical
Publication of CN212862470U publication Critical patent/CN212862470U/en
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Classifications

    • 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
    • B05B11/1001—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
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
    • 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
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Abstract

The utility model comprises a bottle cap component, a pressing head and a pump body component, wherein the pump body component comprises an elastic body, an anti-reflux rod, a piston and a pump shell, the elastic body is hollow and communicated, both ends of the elastic body are provided with openings, one end of the elastic body is movably connected with the pressing head, the other end of the elastic body is embedded into the pump shell, the anti-reflux rod axially penetrates through the elastic body and is movably connected with the openings at both ends of the elastic body, one end of the anti-reflux rod extends into the pump shell and is movably connected with the piston, the structure is simple, the number of parts is small, and the manufacture and the assembly, the plastic elastic body replaces a rigid spring in the existing pump head structure, which is beneficial to environmental protection, and when the pump head is recovered, the spring is not required to be disassembled and taken out from the pump head, can be directly to pump head processing, the material resources of using manpower sparingly, the cost is saved improves the efficiency of recovery work, has brought a lot of facilities for the user.

Description

Pressing pump head
Technical Field
The utility model relates to a liquid pump head structure especially relates to a press pump head.
Background
The existing cosmetic containers are very convenient to use because liquid is pumped out by pressing the pump heads and the liquid is pumped out by utilizing the pump heads, but have some problems, on one hand, the existing pump heads are complex in structure, more in parts and difficult to assemble and manufacture; on the other hand, the preparation material of current pump head is plastics mostly, but the spring of pump head the inside is rigid structure, when cosmetics used up was abandoned, the user can not carry out the split to the pump head, take out the spring and separate with the structure of other pump heads, consequently some quilt of a lot of pump heads are directly abandoned, some by recovery processing, it can influence sanitation by directly abandoning, be unfavorable for the environmental protection, by recovery processing's pump head, the work load of spring is big because of disassembling the pump head separation, consume a lot of manpower and material resources, influence the efficiency of recovery work.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem be that current pump head structure is comparatively complicated, and spare part is more, and equipment and preparation difficulty use rigid structure's spring in the current pump head moreover, are unfavorable for the environmental protection, and retrieve aftertreatment's work load big, consume a lot of manpower and materials, influence the efficiency of recovery work.
For solving the technical problem mentioned above, the utility model discloses technical scheme provides a press pump head, wherein, include: bottle lid subassembly and with press head and pump body subassembly that bottle lid subassembly both ends are connected respectively, its characterized in that, pump body subassembly includes elastic body, prevents against current pole, piston and pump case, elastic body cavity link up and both ends have the opening, elastic body's one end with press head swing joint, the other end embedding pump case, prevent against current pole axial run through elastic body and with elastic body both ends opening swing joint, the one end of preventing against current pole stretches into in the pump case and swing joint have the piston.
Preferably, the pressing head comprises a pressing connecting part, a nozzle and a first liquid inlet channel communicated with the nozzle; the elastic body is integrally formed and comprises a first connecting part, an elastic body and a second connecting part, the first connecting part is movably connected with the pressing connecting part, and the second connecting part is embedded into the pump shell; the anti-backflow rod comprises a top rod part and a rod body connected with the top rod part, the rod body penetrates through the elastic body and is movably connected with the openings at the two ends of the elastic body, and one end of the rod body extends into the pump shell and is movably connected with the piston; the pump housing top end has a first transverse projection extending outwardly in a radial direction.
Preferably, first connecting portion with press connecting portion threaded connection, the ejector pin portion with the body of rod passes through the ring platform and connects, first connecting portion with elastomer inflection point department of meeting is provided with vertical spliced pole, vertical spliced pole with body of rod interference fit, vertical spliced pole top with the ring platform offsets, second connecting portion include the horizontal boss of second and connector, the horizontal boss of second with first horizontal boss offsets, the connector with the inner wall interference fit of pump housing.
Preferably, the pressing connecting part is hollow, a first bulge is formed at the top of the pressing connecting part, the ejector rod part extends into the pressing connecting part and is positioned in the first liquid inlet channel, an inner recess corresponding to the first bulge is formed at the top of the ejector rod part, a clamping table is formed on the outer wall of one end, away from the ejector rod part, of the rod body, a first groove matched with the annular clamping table is formed on the inner wall of the piston, a transverse through hole is formed at the top end of the rod body, and a second liquid inlet channel communicated with the transverse through hole is formed in the rod body in a hollow manner,
preferably, the bottle cap assembly comprises a second groove for enabling the pressing head to move up and down and a bottle cap connected with the second groove, one end of the elastic body exposed out of the pump shell is located in a cavity of the second groove, and the pump shell is connected with the bottle cap assembly through the first transverse boss.
Preferably, the second groove with the inner wall boundary department of bottle lid is provided with the draw-in groove, first horizontal boss with the draw-in groove joint.
Preferably, the pump housing is integrally formed with the cap assembly by the first transverse projection.
Preferably, the inner diameter of the side wall of the pressing head is larger than the outer diameter of the elastic body during maximum deformation, a second protrusion is arranged at the bottom end of the outer side wall of the pressing head, a third protrusion is arranged at the top end of the inner wall of the second groove, and the pressing head is connected with the second groove in a clamped mode through the second protrusion and the third protrusion.
Preferably, a fourth protrusion is arranged on the side wall of the connecting body, and the connecting body is in interference fit with the inner wall of the pump shell through the fourth protrusion.
Preferably, an anti-backflow pad is installed at the bottom end of the pump housing, and the anti-backflow pad is a one-way valve.
The utility model discloses technical scheme's beneficial effect is: the simple structure of pump head for the spare part of equipment reduces, is convenient for equipment and preparation, and excellent in use effect will have the rigid spring in the pump head to replace with plastic spring, does benefit to the environmental protection, and the processing after the recovery of being convenient for need not disassemble the pump head, saves recovery processing's manpower and materials, provides the efficiency of recovery work.
The utility model discloses a structure to the pump head changes, replaces the rigid spring among the original pump head structure with the plastic spring, does benefit to environmental protection, facilitates for recovery work, and the one end embedding pump shell of plastic spring is direct to be connected with the pump shell, can replace original adapting unit who is used for coupling spring and pump shell, reduces the part, and the pump shell can be directly with bottle lid subassembly integrated into one piece, also can swing joint, provides multiple option scheme, convenient to use, the nimble selection.
Drawings
Fig. 1 is a schematic structural diagram of a pressing pump head according to an embodiment of the present invention;
FIG. 2 is a schematic view of the pressing head according to the embodiment of the present invention;
fig. 3 is a schematic structural view of an elastic body in an embodiment of the present invention;
FIG. 4 is a schematic structural view of an anti-reflux rod according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a bottle cap assembly according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a pump housing according to an embodiment of the present invention;
FIG. 7 is a schematic view of the piston structure in the embodiment of the present invention;
FIG. 8 is a top view of the anti-reflux mat according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a second embodiment of the present invention;
fig. 10 is a schematic structural view of a pump housing according to a second embodiment of the present invention;
fig. 11 is a schematic structural diagram of a third embodiment of the present invention;
fig. 12 is a schematic structural view of a liquid guide rod according to a third embodiment of the present invention;
fig. 13 is a schematic structural view of a liquid inlet rod according to a third embodiment of the present invention;
fig. 14 is a schematic structural view of a piston according to a third embodiment of the present invention;
fig. 15 is a schematic structural view of a pump housing according to a third embodiment of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
Please refer to fig. 1 to 8, for the first embodiment of the present invention, a pressing pump head is shown, specifically as shown in fig. 1, the pressing pump head includes a bottle cap assembly 3 and a pressing head 1 and a pump body assembly 2 respectively connected to two ends of the bottle cap assembly 3, the pump body assembly 2 includes an elastic body 4, a backflow prevention rod 5, a piston 6 and a pump housing 7, the elastic body 4 has a hollow through structure and openings at two ends, one end of the elastic body 4 is movably connected to the pressing head 1, the other end is embedded into the pump housing 7, the backflow prevention rod 5 axially penetrates the elastic body 4 and is movably connected to the openings at two ends of the elastic body 4, one end of the backflow prevention rod 5 extends into the pump housing 7 and is movably connected to the piston 6. The whole pressing pump head is simple in structure, simple in connection mode and convenient to manufacture and assemble.
As shown in fig. 2, the pressing head 1 includes a pressing connection portion 11, a nozzle 12 and a first liquid inlet channel 14 communicated with the nozzle 12, wherein the nozzle 12 is communicated with the first liquid inlet channel 14, liquid flows out from the nozzle 12 after passing through the first liquid inlet channel 14, the outer wall of the pressing connection portion 11 is provided with a thread (not shown), the middle position of the top of the pressing connection portion 11 is further provided with a first protrusion 13, the outer wall of the bottom end of the pressing head 1 is provided with a second protrusion 15, a hollow cavity is formed between the pressing connection portion 11 and the inner wall of the pressing head 1, the cavity can facilitate the downward movement of the pressing head 1 when being pressed and the upward movement when being released, the second protrusion 15 of the pressing head 1 can ensure that the pressing head 1 cannot be ejected when moving upward, the second protrusion 15 can be clamped with a clamping groove 33 of the bottle cap assembly 3, and the pressing head 1 and the bottle cap assembly 3 are, in a usable state, if the pressing head 1 is not connected with the bottle cap assembly 3, the pressing head 1 can be placed on the bottle cap assembly 3, and the pressing head 1 is successfully connected with the bottle cap assembly 3 by pressing with force, so that a state that liquid can be pumped out by pressing is recovered. The connection mode of the pressing head 1 and the bottle cap component 3 is not limited, and the bottle cap component can be used as long as the liquid outlet effect can be realized through connection.
As shown in fig. 3, the elastic body 4 integrally includes a first connection portion 41, an elastic body 42 and a second connection portion 43, the first connection portion 41 is movably connected to the pressing connection portion 11 of the pressing head 1, the second connection portion 43 is embedded in the pump housing 7 of the pump body assembly 2, the inner wall of the first connection portion 41 is provided with threads, the first connection portion 41 is in threaded connection with the pressing connection portion 11, the connection manner is not limited herein, and the connection manner may be connected by snapping, gluing or integrally forming.
The inner wall of the inflection point where the first connecting part 43 is connected with the elastic body 42 is provided with a vertical connecting column 44 which is in interference fit with the rod body 52 of the backflow prevention rod 5, the second connecting part 43 comprises a second transverse boss 431 and a connecting body 432, the second transverse boss 431 can be abutted against a first transverse boss 71 arranged at the top of the pump shell 7, the outer wall of the connecting body 432 is provided with a fourth bulge 4321, the connecting body 432 is in interference fit with the inner wall of the pump shell 7, the friction force between the connecting body 432 and the inner wall of the pump shell 7 can be increased after the fourth boss 4321 is increased, so that the connection is more stable, the elastic body 4 cannot be askew and deformed under the condition that the elastic body is extruded, the work of a pump body cannot be influenced by sinking, the elastic body 4 is made of PP plastic, the plastic has good elasticity, is beneficial to environmental protection, the disassembly and separation are not needed after recovery, the efficiency of the recovery work is improved,
as shown in fig. 4, the backflow prevention rod 5 includes a rod body 51 and a rod body 52 connected to the rod body 51, the rod body 52 penetrates through the elastic body 4 and is movably connected to the two end openings of the elastic body 4, one end of the rod body 52 extends into the pump housing 7 and is movably connected to the piston 6, the rod body 51 is connected to the rod body 52 through a ring stand 53, a transverse through hole 522 is formed at the top end of the rod body 52, the transverse through hole 522 allows liquid to flow out and flow into the first liquid inlet channel 14, a second liquid inlet channel 523 is formed in the middle of the rod body 52, the second liquid inlet channel 523 is communicated with the transverse through hole 5, the liquid flows out of the transverse through hole 522 through the second liquid inlet channel 523 and then flows into the first liquid inlet channel 14 and flows out from the nozzle 12, a blocking stand 521 is disposed at the bottom end of the rod body 52, the blocking stand 521 is disposed around the circumferential direction of the rod body 52, the number of the blocking stands, during ejector rod part 51 stretched into and presses connecting portion 11, ejector rod part 51's top was provided with indent 511, and indent 511 corresponds with first arch 13, and in pressing head 1 in-process, pressing head 1's first arch 13 downstream corresponds with indent 511 and offsets, drives anti-reflux rod 5 and moves down, and the diameter of anti-reflux rod 5's ejector rod part 51 is less than the internal diameter of pressing connecting portion 11, presses connecting portion 11 like this and can move about from top to bottom, and is unimpeded.
As shown in fig. 5, the bottle cap assembly 3 includes a second groove 31 for the pressing head 1 to move up and down, and a bottle cap 32 connected to the second groove 31, the bottle cap assembly 3 may be integrally formed or movably connected, the second groove 31 and the bottle cap 32 may be movably connected, and the specific connection mode may be a threaded connection, a clamping connection, a bonding connection, etc., an elastic portion 42 of the elastic body 4 is located in the second groove 31, the pump housing is embedded in the bottle cap 32, a clamping groove 33 is provided at the bottom end of the second groove 31, a first transverse boss 71 provided at the top end of the pump housing 7 is clamped with the clamping groove 33 to realize the connection of the pump housing 7 and the bottle cap assembly 3, the first transverse boss 71 may also be integrally formed with the clamping groove 33, the pump housing 7 is integrally formed with the bottle cap assembly 3, the specific mode is not limited and can be connected according to actual needs, a third protrusion 311 is provided at the top end of the inner wall of the second groove 31, the third protrusion 311 is clamped with the second protrusion 15 of the pressing head 1, the clamping connection mode can ensure that the pressing head 1 is always in a state of being connected with the second groove 31 and cannot fall off or bounce, the bottle cap 32 is in threaded connection with a bottle mouth (not shown) of a cosmetic container, the connection mode is not limited, and the clamping connection mode, the fixed connection mode or the integrally formed connection mode can be selected.
The internal diameter of the lateral wall of the pressing head 1 is greater than the external diameter when the elastic body 4 deforms maximally, because when the pressing pump head is in the working state, press the pressing head 1 downwards, the pressing connection part 11 of the pressing head 1 can press the first connection part 41 of the elastic body 4 downwards, the elastic body 42 of the elastic body 4 can deform after receiving the extrusion force, the lateral wall of the elastic body 42 receiving the extrusion force can protrude outwards until the bottom end of the backflow prevention rod 5 contacts with the inner bottom of the pump housing 7, the elastic body 42 can deform maximally, the lateral wall of the elastic body 42 protrudes outwards to the maximum diameter, so the internal diameter of the lateral wall of the pressing head 1 needs to be greater than the external wall diameter when the elastic body 4 deforms maximally, and the pressing head 1 can move up and down in the second groove 31.
As shown in fig. 6, the top wall of the pump housing 7 is provided with a first transverse projection 71 extending transversely outward, the first transverse projection 71 should abut against the second transverse projection 431 of the elastic body 4, and should be clamped with the clamping groove 33 of the bottle cap assembly 3, the first transverse projection 71 may also be connected with the clamping groove 33 in an integral forming manner, or the first transverse boss 71 can be directly connected with the bottle cap assembly 3 in an integrated forming way, or the pump housing 7 can be directly connected with the bottle cap assembly 3 in an integrated forming way and in an interactive connection way, the connection way of the pump housing 7 and the bottle cap assembly 3 is not limited, the inner bottom of the pump housing 7 is provided with the anti-backflow pad 72, the anti-backflow pad 72 is a one-way valve, liquid enters the cavity of the pump housing 7 from the container through the anti-backflow pad 72, the liquid cannot be reversely left back in the container, this ensures that the liquid can be continuously discharged by pressing, and the top view of the specific anti-reflux pad 7 can be seen in fig. 8.
As shown in fig. 7, the inner wall of the piston 6 is provided with first grooves 61 corresponding to the locking steps 521 of the backflow prevention rod 5, the number of the first grooves 61 is at least 2, the number of the specific grooves is not limited herein, and the first grooves can be set according to actual needs, and the piston 6 is arranged inside the pump housing 7 and is in sliding fit with the inner wall of the pump housing 7, so that the piston 6 can slide up and down in the cavity of the pump housing 7.
To sum up, the utility model discloses a change the current structure of pressing the pump head, it is complicated to have solved the current structure of pressing the pump head existence, the spare part is many, be not convenient for preparation and equipment, be unfavorable for the environmental protection, be unfavorable for the recovery, increase the problem of recovery cost, simple structure has been brought, the spare part is few, do benefit to preparation and equipment, and the rigid spring in the current pump head structure has been replaced with plastics elastic body, do benefit to the environmental protection, and when the pump head was retrieved, do not need to disassemble the pump head and take out the spring, can be directly to pump head processing, the material resources of using manpower sparingly, the cost of saving, improve the efficiency of recovery work, for the user has brought a lot of facilities.
As shown in fig. 9, a second embodiment of the present invention, the operating principle of the second embodiment is the same as that of the first embodiment, the top wall of the pump housing 7 is integrally formed with a connecting cavity 73, the second connecting portion 3 of the elastic body 4 is embedded into the connecting cavity 73, the second connecting portion 3 is in interference fit with the inner wall of the connecting cavity 73, the inner wall of the connecting cavity 73 is provided with a third transverse projection 74, the third transverse projection 74 abuts against the bottom of the second connecting portion 3, the second transverse projection 431 of the elastic body 4 abuts against the top wall of the connecting cavity 73, the width of the second transverse projection 431 extending outwards along the radial direction of the elastic body 4 is equal to the thickness of the side wall of the connecting cavity 73, or the width of the second transverse projection 431 extending outwards along the radial direction of the elastic body 4 is greater than the thickness of the side wall of the connecting cavity 73, so designed advantage is to ensure that, when the elastic body 4 is pressed, the bottom is provided with a support, so that the device is more stable and safe.
As shown in fig. 10, a third embodiment of the present invention is a third embodiment, in which the component backflow prevention rod 5 is modified on the basis of the second embodiment, in the third embodiment, the backflow prevention rod 5 includes a liquid inlet rod 54 and a liquid guide rod 55 movably connected to the liquid inlet rod 54, a round platform 57 is connected to a bottom surface of the liquid inlet rod 54, a liquid inlet hole 56 is provided at a position near the round platform 57 at a bottom end of the liquid inlet rod 54, the liquid inlet rod 54 is hollow and is communicated with the liquid inlet hole 56, the liquid inlet rod 54 penetrates through the piston 6 and a top end of the liquid inlet rod 54 is embedded into the liquid guide rod 55, a clamping groove 551 matched with a top end of the liquid inlet rod 54 is provided on an inner wall of a lower end of the liquid guide rod 55, the liquid inlet rod 54 is clamped with the liquid guide rod 55, a length of a side wall of the piston 6 near the liquid inlet rod 54 is longer than a side wall of the liquid inlet rod 54, a portion of the piston 6 near the liquid inlet rod 54 is higher than, the side wall of the clamping groove 551 of the liquid guide rod 55 can be movably embedded into the third groove 63 up and down, the bottom surface of the side wall of the piston 6 close to the liquid inlet rod 54 abuts against the circular truncated cone 57, the press head 1 is pressed until the liquid inlet rod 54 contacts with the inner ground surface of the pump housing 7, the liquid inlet rod 54 can move upwards due to the elastic recovery of the elastic body 4 when the press head 1 is released, and the circular truncated cone 57 abuts against the piston 6 in the moving process and can push the piston to move upwards together, so that the liquid in the container is sucked into the cavity of the pump housing 7.
When liquid goes out, press pressing head 1 and continue the downstream, pressing connecting portion 11 of pressing head 1 and pressing elastic body 4 downstream, elastic body 4 takes place the deformation, in last decurrent in-process, prevent that adverse current pole 5 can drive piston 6 and continue the downstream, arouse that to produce stronger pressure in the inner chamber of pump housing 7 and can extrude liquid and flow into water conservancy diversion pole 55 behind liquid inlet rod 54 through feed liquor hole 56 flow through, water conservancy diversion pole 55 is hollow, the hollow opening in top of water conservancy diversion pole 55 and nozzle 12 intercommunication, liquid flows out through nozzle 12.
During imbibition, when release pressing head 1, elastic body 4 resumes deformation and can produces an ascending elasticity, drives and prevents upstream rod 5 and piston 6 rebound, and the removal in-process can produce a stronger pressure, inhales the inner chamber of pump housing 7 with the liquid in the container in, prevents upstream rod 5 and lasts upward movement, and the liquid in the container lasts in the inner chamber of being inhaled pump housing 7, resets until elastic body 4, and the imbibition process is accomplished.
The utility model relates to a press the principle of pump head and be:
pressing to discharge liquid: pressing the pressing head 1 downwards, the pressing head 1 is subjected to a downward force, the elastic body 4 is extruded by the pressing connecting part 11 to move downwards to generate deformation, initially, in the downward movement process of the elastic body 4, the backflow prevention rod 5 is fixed, when the elastic body 4 moves downwards to the position below the transverse through hole 522, the first protrusion 13 is in contact with and butts against the inner recess 511, the backflow prevention rod 5 moves downwards, liquid in the cavity of the pump shell 7 is extruded, the liquid enters the second liquid inlet channel 523 after being extruded, flows to the first liquid inlet channel 14 through the transverse through hole 522 after passing through the second liquid inlet channel 523, and then flows out of the nozzle 12, and in the process, the backflow prevention rod 5 continuously moves downwards until being in contact with the inner bottom of the pump shell 7, and liquid outflow is completed.
When the imbibition is released and the pressing head 1 is pressed until the pressing head contacts with the inner bottom of the pump shell 7 and the bottom end of the side wall of the pressing head 1 contacts with the bottom of the second groove 31, after the liquid discharging process is finished, the pressing head 1 is released, the elastic body 4 rebounds due to the elasticity to drive the anti-reflux rod 5 and the piston 6 to move upwards, the pressing head 1 is also driven to move upwards, in the process that the backflow preventing rod 5 and the piston 6 move upwards, the pressure in the cavity of the pump housing 7 is increased, pressure difference is generated to suck the liquid in the container into the cavity of the pump housing 7, the liquid flows into the pump housing 7 through the backflow preventing pad 72, the liquid is continuously sucked into the cavity of the pump housing 7 until the elastic body 4 restores to be deformed to the original state, the liquid does not continue to be sucked into the cavity of the pump housing 7 but does not flow out of the pump housing 7 because the backflow prevention pad 72 is a one-way valve, which completes the process of releasing the suction.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.

Claims (10)

1. The utility model provides a press down the pump head, including bottle lid subassembly and with press head and pump body subassembly that bottle lid subassembly both ends are connected respectively, a serial communication port, pump body subassembly includes elastic body, prevents against current pole, piston and pump shell, elastic body cavity link up and both ends have the opening, elastic body's one end with press head swing joint, other end embedding the pump shell, prevent against current pole axial run through elastic body and with elastic body both ends opening swing joint, the one end of preventing against current pole stretches into in the pump shell and swing joint have the piston.
2. A pressing pump head according to claim 1, wherein the pressing head comprises a pressing connection, a nozzle, and a first fluid inlet channel in communication with the nozzle; the elastic body is integrally formed and comprises a first connecting part, an elastic body and a second connecting part, the first connecting part is movably connected with the pressing connecting part, and the second connecting part is embedded into the pump shell; the anti-backflow rod comprises a top rod part and a rod body connected with the top rod part, the rod body penetrates through the elastic body and is movably connected with the openings at the two ends of the elastic body, and one end of the rod body extends into the pump shell and is movably connected with the piston; the pump housing top end has a first transverse projection extending outwardly in a radial direction.
3. A pressing pump head according to claim 2, wherein the first connection portion is screwed to the pressing connection portion, the shaft portion and the rod body are connected by a ring, a vertical connection column is provided at an inflection point where the first connection portion is connected to the elastomer, the vertical connection column is in interference fit with the rod body, a top portion of the vertical connection column abuts against the ring, the second connection portion includes a second transverse boss and a connection body, the second transverse boss abuts against the first transverse boss, and the connection body is in interference fit with an inner wall of the pump housing.
4. A pressing pump head according to claim 2, wherein the pressing connection portion is hollow and has a top portion formed with a first protrusion, the shaft portion extends into the pressing connection portion and is located in the first fluid inlet channel, the top portion of the shaft portion is formed with an indent corresponding to the first protrusion, an outer wall of an end of the rod body away from the shaft portion is formed with a clamping table, an inner wall of the piston is provided with a first groove matched with the clamping table, a transverse through hole is formed at a top end of the rod body, and the rod body is hollow and is formed with a second fluid inlet channel communicated with the transverse through hole.
5. A pressing pump head according to claim 2, wherein the cap assembly includes a second recess for allowing the pressing head to move up and down, and a cap connected to the second recess, one end of the elastic body exposed to the pump housing is located in a cavity of the second recess, and the pump housing is connected to the cap assembly through the first transverse projection.
6. A pressing pump head according to claim 5, wherein a slot is provided at a boundary between the second groove and the inner wall of the bottle cap, and the first transverse projection is engaged with the slot.
7. A press pump head as claimed in claim 5, wherein the pump housing is integrally formed with the cap assembly by the first transverse projection.
8. A pressing pump head according to claim 5, wherein an inner diameter of a side wall of the pressing head is larger than an outer diameter of the elastic body at the time of maximum deformation, a second protrusion is provided at a bottom end of an outer side wall of the pressing head, a third protrusion is provided at a top end of an inner wall of the second groove, and the pressing head is connected to the second groove by being engaged with the second protrusion and the third protrusion.
9. A pressing pump head according to claim 3, wherein a fourth protrusion is provided on a side wall of the connecting body, and the connecting body is in interference fit with the inner wall of the pump housing via the fourth protrusion.
10. A press pump head as claimed in claim 1, wherein an anti-reflux pad is mounted to the bottom end within the pump housing, the anti-reflux pad being a one-way valve.
CN202021008357.1U 2020-06-05 2020-06-05 Pressing pump head Active CN212862470U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021008357.1U CN212862470U (en) 2020-06-05 2020-06-05 Pressing pump head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021008357.1U CN212862470U (en) 2020-06-05 2020-06-05 Pressing pump head

Publications (1)

Publication Number Publication Date
CN212862470U true CN212862470U (en) 2021-04-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021008357.1U Active CN212862470U (en) 2020-06-05 2020-06-05 Pressing pump head

Country Status (1)

Country Link
CN (1) CN212862470U (en)

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