CN209814700U - Liquid pump - Google Patents

Liquid pump Download PDF

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Publication number
CN209814700U
CN209814700U CN201920404428.0U CN201920404428U CN209814700U CN 209814700 U CN209814700 U CN 209814700U CN 201920404428 U CN201920404428 U CN 201920404428U CN 209814700 U CN209814700 U CN 209814700U
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CN
China
Prior art keywords
liquid
seat
pipe
elastic
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920404428.0U
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Chinese (zh)
Inventor
王金峰
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.)
NINGBO SENG CZE MACROSPRAY CO Ltd
Original Assignee
NINGBO SENG CZE MACROSPRAY CO Ltd
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Filing date
Publication date
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Priority to CN201920404428.0U priority Critical patent/CN209814700U/en
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Publication of CN209814700U publication Critical patent/CN209814700U/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
    • B05B11/1001—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
    • 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
    • B05B11/1043—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
    • B05B11/1077—Springs characterised by a particular shape or material

Landscapes

  • Reciprocating Pumps (AREA)

Abstract

The utility model relates to a pump technical field especially relates to a liquid pump. It includes: the pressing pump head, the bottom sealing seat and the internal thread pipe seat; the pressure pump head is fixedly connected with the bottom seal seat, and the bottom seal seat is hollow and is arranged at the lower end of the pressure pump head; the internal thread pipe seat is arranged at the outer end of the bottom sealing seat; a piston is arranged in the bottom seal seat, the piston divides the bottom seal seat into an upper cavity and a lower cavity, and the lower cavity of the bottom seal seat is a liquid storage chamber; piston rods are arranged in the pump pressing head and the bottom seal seat, the outer wall of the upper end of each piston rod is in sealing contact with the inner wall of a flow channel of the pump pressing head, and the piston rods extend downwards to extend through the upper cavity of the bottom seal seat and extend to the piston or the liquid storage chamber of the lower cavity of the bottom seal seat; a liquid conveying channel is arranged in the piston rod, an outlet of the liquid conveying channel is communicated with the flow channel, and an inlet of the liquid conveying channel is blocked by the piston; the lower end of the bottom seal seat is provided with a liquid pipe hole, and a liquid suction pipe is inserted in the liquid pipe hole. The utility model has novel and stable integral structure and stable pump liquid; the sealing performance is good, and the air is isolated from the inside and the outside and the liquid leakage is prevented.

Description

Liquid pump
Technical Field
The utility model relates to a pump technical field especially relates to a liquid pump.
Background
The liquid pump is installed at the opening of the container, is used as a simple and effective liquid extruding device, is widely applied to the fields of shampoo, hand sanitizer, liquid soap and the like, brings convenience and rapidness for people, and has the working principle that the liquid in the liquid container is extruded by increasing air pressure in the liquid container through the up-and-down reciprocating motion of an elbow. However, the conventional liquid pump generally has the problems that liquid spray is easy to occur in the process of pressing the pump, liquid in a liquid container damages an elastic mechanism, so that the pump cannot work normally, air leakage occurs inside the pump, outside air enters the pump, so that the liquid of the pump cannot be smoothly pressed, the structure of an internal spring is rusted, and the like.
The utility model discloses a utility model patent of hydraulic pump that chinese patent office disclosed in 2011 3 month 23 authorizes, authorizes the publication number CN201770163U, and it includes the elbow, hinders contrary pearl, joint cover, gasket, thread circle, piston rod, piston seat, spring, negative pressure pearl, the pump body, straw, and it embolias piston seat piston, piston rod, joint cover, presses the jail with the elbow, puts into the pump body negative pressure pearl, spring, presses the elbow subassembly again on the pump body subassembly. The problems that an elastic part in the pump is easy to lose efficacy, and liquid spray and external air are easy to enter the pump in the process of pressing the pump also exist.
Disclosure of Invention
For solving current liquid pump result of use relatively poor, inside easy weeping, gas leakage and the easy ageing damage scheduling problem of elastic component, the utility model provides a liquid pump. It mainly achieves the following purposes: firstly, the integral structure of the liquid pump is ensured to be stable, a good pressure pump effect can be generated, and the stable pumping-out process of the liquid is ensured; the sealing structure has excellent sealing property, and can prevent outside air from entering and prevent liquid from leaking; and thirdly, the service life of the elastic part is prolonged, and the premature aging and damage of the elastic part are avoided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a liquid pump comprising:
the pressing pump head, the bottom sealing seat and the internal thread pipe seat;
the pressure pump head is fixedly connected with the bottom seal seat, and the bottom seal seat is hollow and is arranged at the lower end of the pressure pump head;
the internal thread pipe seat is arranged at the outer end of the bottom sealing seat;
a piston is arranged in the bottom seal seat, the piston divides the bottom seal seat into an upper cavity and a lower cavity, and the lower cavity of the bottom seal seat is a liquid storage chamber;
piston rods are arranged in the pump pressing head and the bottom seal seat, the outer wall of the upper end of each piston rod is in sealing contact with the inner wall of a flow channel of the pump pressing head, and the piston rods extend downwards to extend through the upper cavity of the bottom seal seat and extend to the piston or the liquid storage chamber of the lower cavity of the bottom seal seat;
a liquid conveying channel is arranged in the piston rod, an outlet of the liquid conveying channel is communicated with the flow channel, and an inlet of the liquid conveying channel is blocked by the piston;
the lower end of the bottom seal seat is provided with a liquid pipe hole, and a liquid suction pipe is inserted in the liquid pipe hole.
Preferably, a rebound seat is arranged in the upper cavity of the bottom seal seat; the rebound seat comprises a hollow elastic seat and a spring, and the spring is arranged in the elastic seat; the piston rod penetrates through the elastomer seat and is in sealing contact with the elastomer seat.
Preferably, the piston is provided with a first bulge, and the first bulge is in sealing contact with the elastomer seat and the piston rod; the piston is provided with a second bulge, and the lower end of the rebound seat is relatively provided with a lower bulge.
Preferably, the second bulge is provided with a first slope, and the lower bulge is provided with a second slope oppositely; the first ramp and the second ramp are in partial contact.
Preferably, an elastic seat is arranged in the liquid pipe hole; the bullet seat includes elasticity vertical seat pipe and shutoff ball.
Preferably, the lower end of the elastic vertical seat pipe is provided with an elastic limiting pipe; the upper end of the elastic limiting pipe is hermetically connected with the lower end of the elastic vertical base pipe, the outer wall of the elastic limiting pipe is hermetically contacted with the inner wall of the liquid pipe hole, and the inner diameter of the elastic vertical base pipe is gradually reduced from top to bottom; the lower end of the elastic limiting pipe is also provided with an elastic inverted cone pipe, the upper end of the elastic inverted cone pipe is hermetically connected with the lower end of the elastic limiting pipe, and the outer wall of the elastic inverted cone pipe is in sealing contact with the inner wall of the liquid pipe hole; the elasticity back taper pipe internal diameter reduces from top to bottom gradually.
Preferably, the upper end of the elastic vertical seat pipe is provided with an elastic right taper pipe; the lower end of the elastic forward conical pipe is hermetically connected with the elastic spring seat, and the outer wall of the elastic forward conical pipe is hermetically contacted with the inner wall of the liquid pipe hole; the inner diameter of the elastic forward taper pipe is gradually increased from top to bottom.
Preferably, the liquid inlet of the liquid feeding channel in the piston rod is arranged on the side surface of the piston rod.
The utility model has the advantages that:
1) the integral structure is novel, the integral structure is stable in the using process, and a good and stable liquid pumping effect can be generated;
2) the sealing performance is good, the inside and outside gas is isolated, and the liquid leakage is prevented;
3) the elastic piece is protected by the structure, and the service life is longer;
4) most elastic structures can adopt recyclable plastic materials, so that the elastic structure is more environment-friendly.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
in the figure: 1 pump head, 11 runners, 111 liquid inlet channel, 112 liquid outlet channel, 12 pump outlet, 2 bottom sealing seats, 21 liquid storage chamber, 22 liquid pipe hole, 221 elastic vertical seat pipe, 222 blocking ball, 223 elastic limit pipe, 224 elastic inverted cone pipe, 225 elastic positive cone pipe, 3 housing, 4 internal thread pipe seat, 5 piston, 51 first protrusion, 52 second protrusion, 53 first slope, 6 rebound seat, 61 elastic seat, 611 upper pipe hole, 612 lower pipe hole, 613 lower protrusion, 614 second slope, 62 spring, 7 piston rod, 71 liquid feeding channel, 72 liquid feeding inlet, 8 liquid sucking pipe.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and drawings. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. Moreover, references to embodiments of the invention in the following description are generally only to be considered as examples of the invention, and not as all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention shall fall within the protection scope of the present invention.
Examples
A liquid pump as shown in fig. 1 to 3, comprising:
the device comprises a pump pressing head 1, a housing 3, a bottom sealing seat 2 and an internal thread pipe seat 4;
the bottom seal seat 2 is arranged at the lower end of the pressure pump head 1, and the housing 3 is respectively clamped with the bottom of the pressure pump head 1 and the upper part of the bottom seal seat 2 to realize the fixed connection of the three parts;
the internal thread pipe seat 4 is clamped at the outer end of the bottom sealing seat 2 and is used for connecting a liquid container such as a cosmetic bottle and the like for containing liquid, and the liquid container is required to be provided with a bottle mouth structure matched with the internal thread pipe seat 4;
the bottom seal seat 2 is hollow to form an inner cavity, a piston 5 is arranged in the inner cavity, and the piston 5 is fixed with the inner cavity wall of the bottom seal seat 2 in a sealing way;
the piston 5 divides the inner cavity of the bottom sealing seat 2 into an upper cavity and a lower cavity, the lower cavity is a liquid storage chamber 21, and the upper cavity is provided with a rebound seat 6;
the rebound seat 6 is hollow, the upper wall and the lower wall of the rebound seat respectively abut against the bottom of the pump head 1 and the upper part of the piston 5, and the upper wall and the lower wall are respectively provided with an upper pipe hole 611 and a lower pipe hole 612, so to speak;
a flow channel 11 is arranged in the pressure pump head 1, and the flow channel 11 is divided into a liquid outlet channel 112 and a liquid inlet channel 111;
the liquid outlet of the liquid outlet channel 112 is a pump outlet 12 which is used as a liquid outlet of the pump pressing head 1 and the whole liquid pump, the liquid inlet of the liquid outlet channel 112 is communicated with the liquid outlet of the liquid inlet channel 111, the liquid inlet of the liquid inlet channel 111 is communicated with the upper cavity of the bottom seal seat 2, and the liquid inlet end of the liquid inlet channel 111 is propped against the upper end of the rebound seat 6;
and a piston rod 7 is arranged in the pump pressing head 1 and the bottom seal seat 2 in a penetrating way.
The upper end of the piston rod 7 is clamped with the inner wall of the liquid inlet channel 111 of the pressure pump head 1, and the outer wall of the piston rod 7 is in sealing contact with the inner wall of the liquid inlet channel 111;
the piston rod 7 sequentially passes through the upper tube hole 611, the lower tube hole 612 and the piston 5 of the rebound seat 6 from top to bottom, and the bottom end of the piston rod extends to the lower cavity liquid storage chamber 21 of the bottom seal seat 2 or the bottom end of the piston rod is just positioned in the piston 5 at the joint of the piston 5 and the liquid storage chamber 21;
a liquid feeding channel 71 is arranged in the piston rod 7, a liquid outlet of the liquid feeding channel 71 is communicated to a liquid inlet channel 111, a liquid inlet of the liquid feeding channel 71 is a liquid feeding inlet 72, the liquid feeding inlet 72 is positioned in the liquid storage chamber 21, the opening and blocking states of the liquid feeding inlet 72 are limited by the matching of the piston 5, the piston 5 blocks the liquid feeding inlet 72 of the liquid feeding channel 71 when the pumping head 1 is not pressed down, namely the liquid feeding inlet 72 end of the liquid feeding channel 71 is sealed, when the pumping head 1 is pressed down, the piston 5 removes the blocking limitation of the liquid feeding inlet 72 of the liquid feeding channel 71, so that the liquid feeding inlet 72 end of the liquid feeding channel 71 is opened, and further the liquid feeding inlet 72 of the liquid feeding channel 71 is communicated with the liquid storage chamber 21;
the liquid delivery channel 71, the liquid inlet channel 111 and the liquid outlet channel 112 are communicated with each other to form a complete liquid flow channel, when the pump head 1 is pressed down and the piston 5 removes the blocking restriction on the liquid delivery inlet 72 of the liquid delivery channel 71 to enable the liquid delivery inlet 72 of the liquid delivery channel 71 to be communicated with the liquid storage chamber 21, the liquid in the liquid storage chamber 21 can flow to the pump outlet 12 through the complete liquid flow channel and can be pumped out from the pump outlet 12;
the liquid feeding inlet 72 of the liquid feeding channel 71 is arranged on the side surface of the piston rod 7, compared with the mode that the liquid feeding inlet 72 of the liquid feeding channel 71 is arranged at the lower end of the piston rod 7, the liquid feeding inlet 72 is arranged on the side surface of the piston rod 7, so that the piston 5 can be more easily blocked and sealed, and the sealing performance of the piston is effectively improved, the bottom piston 5 is blocked and also needs to be provided with a spring seat and other structures to enable the piston 5 to move up and down, the side surface blocking and sealing can only utilize the elasticity of the piston 5, the structure is simpler, on the other hand, the liquid feeding inlet 72 of the liquid feeding channel 71 arranged at the bottom end of the piston rod 7 can enable the liquid in the liquid storage chamber 21 to quickly pass through the liquid flow channel and be quickly sprayed out from the pump opening when the liquid pump is opened, the liquid pump mostly requires the slow flow rate and stable outflow, and the spraying mode is obviously unwilling, the liquid feeding inlet 72 of the liquid feeding channel 71 arranged on the side surface of the piston rod 7 can also avoid the problem of liquid injection, so that the flow rate controllability is higher when liquid is pumped out, the liquid flows out more stably, and liquid leakage and other situations can be caused if the inside and outside of the liquid container cannot be separated in time (the liquid feeding channel 71 is sealed in a sealing mode) during liquid pumping, which is obviously not wanted by a user, while the liquid feeding inlet 72 of the liquid feeding channel 71 arranged on the side surface of the piston rod 7 is sealed in a sealing mode faster after the piston rod 7 is reset, and the problem of liquid leakage can not occur.
A liquid pipe hole 22 is formed in the bottom end of the bottom sealing seat 2, and a liquid suction pipe 8 is inserted into the liquid pipe hole 22;
a marble seat is also arranged in the liquid pipe hole 22 and comprises an elastic vertical seat pipe 221 and a blocking ball 222;
the elastic vertical base pipe 221 is arranged in the liquid pipe hole 22, the outer wall of the elastic vertical base pipe 221 is in sealing contact with the inner wall of the liquid pipe hole 22, the blocking ball 222 is arranged in the elastic vertical base pipe 221, and the blocking ball 222 can move up and down in the elastic vertical base pipe 221;
the lower end of the elastic vertical seat pipe 221 is also provided with an elastic limiting pipe 223, the upper end of the elastic limiting pipe 223 is hermetically connected with the lower end of the elastic vertical seat pipe 221, the outer wall of the elastic limiting pipe 223 is in sealing contact with the inner wall of the liquid pipe hole 22, and the inner diameter of the elastic vertical seat pipe 221 is gradually reduced from top to bottom;
the lower end of the elastic limiting pipe 223 is also provided with an elastic inverted cone pipe 224, the upper end of the elastic inverted cone pipe 224 is hermetically connected with the lower end of the elastic limiting pipe 223, and the outer wall of the elastic inverted cone pipe 224 is hermetically contacted with the inner wall of the liquid pipe hole 22;
the inner diameter of the elastic inverted cone 224 is gradually reduced from top to bottom;
the upper end of the elastic vertical seat pipe 221 is also provided with an elastic forward taper pipe 225;
the lower end of the elastic forward taper pipe 225 is hermetically connected with the elastic spring seat, and the outer wall of the elastic forward taper pipe 225 is hermetically contacted with the inner wall of the liquid pipe hole 22;
the inner diameter of the elastic forward taper pipe 225 is gradually increased from top to bottom;
the upper end of the elastic marble seat is positioned in the liquid pipe hole 22 or the liquid storage chamber 21;
the diameter of the blocking ball 222 is larger than the inner diameter of the upper end of the elastic forward taper pipe 225 and the inner diameter of the lower end of the elastic reverse taper pipe 224, and is smaller than the inner diameter of the lower end of the elastic forward taper pipe 225 and the inner diameter of the upper end of the elastic reverse taper pipe 224, the elastic forward taper pipe 225 and the elastic reverse taper pipe 224 can arrange the blocking ball 222 in the elastic seat, so that the blocking ball 222 is prevented from being separated, and the situation that liquid in the liquid storage chamber 21 flows back to the liquid container and the liquid suction pipe 8 to absorb too much liquid at a time and the liquid spraying problem is caused can be avoided through the;
the pipette 8 is inserted into the liquid pipe hole 22 at the lower end of the elastic inverted cone pipe 224, and the outer wall of the pipette 8 is in sealing contact with the inner wall of the liquid pipe hole 22;
the upper end of the pipette 8 is in sealing contact with the lower end of the resilient inverted conical tube 224.
The rebounding seat 6 comprises a hollow rebounding body seat 61;
the upper pipe hole 611 and the lower pipe hole 612 are arranged on the upper wall and the lower wall of the elastomer seat 61;
a spring 62 is arranged between the upper wall and the lower wall in the elastomer seat 61;
the side surface of the piston rod 7 is provided with a clamping block, the clamping block is positioned in the elastomer seat 61, and the upper end surface of the clamping block is tightly contacted with the lower end surface of the upper wall of the elastomer seat 61;
the upper end of the spring 62 is connected with the lower end of the clamping block, and the lower end of the spring 62 is connected with the lower wall of the elastomer seat 61;
the piston rod 7 passes through the upper tube hole 611 and the lower tube hole 612 and the outer wall of the piston rod 7 is in sealing contact with the inner wall of the upper tube hole 611 and the inner wall of the lower tube hole 612.
The upper end of the piston 5 is provided with a first bulge 51, the first bulge 51 is in sealing contact with the joint of the lower pipe hole 612 of the elastomer seat 61 and the piston rod 7, the first bulge 51 can support the rebound seat 6 and further improve the sealing property of the joint of the lower pipe hole 612 and the piston rod 7, the interior of the rebound seat 6 is kept dry, and the problems of aging and the like of the spring 62 are avoided;
the piston 5 is also provided with a second upward bulge 52, and the lower end of the rebound seat 6 is relatively provided with a lower downward bulge 613;
the second protrusion 52 is provided with a first slope 53 facing the inner wall of the bottom seal seat 2, the lower protrusion 613 is provided with a second slope 614 facing the piston rod 7, and the first slope 53 and the second slope 614 are partially contacted;
when the pump head 1 is pressed down, the rebound seat 6 will deform and move down to a certain extent, in this process, the liquid in the liquid storage chamber 21 is most likely to leak into the rebound seat 6, but under the cooperation of the first slope 53 and the second slope 614, the lower protrusion 613 will generate an acting force on the second protrusion 52, so that the second protrusion 52 is pressed and collected inwards and towards the piston rod 7, and further the piston 5, especially the first protrusion 51 on the piston 5 is driven to be pressed and collected, so that the first protrusion 51 generates a better sealing effect at the connection of the lower tube hole 612 and the piston rod 7, and the seepage in this process is prevented from entering the rebound seat 6.
The lateral surface of the outer side of the bottom sealing seat 2 is clamped with the internal thread tube seat 4 to form a clamping bulge, and the clamping bulge ensures that the clamping has higher stability;
the protruding below of joint is equipped with the packing ring, and the stability and the leakproofness of installation department when the packing ring can improve female socket 4 and liquid container cooperation installation.
When in use:
firstly, the internal thread pipe seat 4 is matched with a liquid container for installation, in the process of pressing and releasing the pressure pump head 1 for a plurality of times initially, the liquid in the liquid container is sucked into the liquid storage chamber 21 by the siphon effect generated by the change of the air pressure of the liquid storage chamber 21 when the pressure pump head 1 is released in the process, then the pressure pump head 1 is pressed downwards to drive the piston rod 7 to move downwards after enough liquid is stored in the liquid storage chamber 21, the piston 5 is unblocked from the liquid feeding inlet 72 of the liquid feeding channel 71 of the piston rod 7, the pressure in the liquid storage chamber 21 is increased, then the liquid in the liquid storage chamber 21 is pumped into the liquid feeding channel 71 and flows through the liquid feeding channel 111 and the liquid discharging channel 112 of the pressure pump head 1, the liquid is stably pumped out from the pump outlet 12 without liquid spraying problem, and the pressure pump head 1 is quickly reset under the action of the rebound seat 6 after the pressure pump head 1 is released, the piston rod 7 is driven, the problem that the outside air enters the liquid storage chamber 21 can be avoided, the problem that the pump outlet 12 of the pressure pump head 1 leaks liquid and the like can be avoided, and the use effect is excellent.

Claims (8)

1. A liquid pump, comprising:
the pressing pump head, the bottom sealing seat and the internal thread pipe seat;
the pressure pump head is fixedly connected with the bottom seal seat, and the bottom seal seat is hollow and is arranged at the lower end of the pressure pump head;
the internal thread pipe seat is arranged at the outer end of the bottom sealing seat;
a piston is arranged in the bottom seal seat, the piston divides the bottom seal seat into an upper cavity and a lower cavity, and the lower cavity of the bottom seal seat is a liquid storage chamber;
piston rods are arranged in the pump pressing head and the bottom seal seat, the outer wall of the upper end of each piston rod is in sealing contact with the inner wall of a flow channel of the pump pressing head, and the piston rods extend downwards to extend through the upper cavity of the bottom seal seat and extend to the piston or the liquid storage chamber of the lower cavity of the bottom seal seat;
a liquid conveying channel is arranged in the piston rod, an outlet of the liquid conveying channel is communicated with the flow channel, and an inlet of the liquid conveying channel is blocked by the piston;
the lower end of the bottom seal seat is provided with a liquid pipe hole, and a liquid suction pipe is inserted in the liquid pipe hole.
2. The fluid pump as defined in claim 1, wherein said bottom seal upper chamber has a resilient seat therein; the rebound seat comprises a hollow elastic seat and a spring, and the spring is arranged in the elastic seat; the piston rod penetrates through the elastomer seat and is in sealing contact with the elastomer seat.
3. A fluid pump according to claim 2, wherein the piston is provided with a first projection in sealing contact with the body seat and the piston rod; the piston is provided with a second bulge, and the lower end of the rebound seat is relatively provided with a lower bulge.
4. A liquid pump as claimed in claim 3, wherein the second projection is provided with a first slope, and the second slope is provided opposite to the first slope; the first ramp and the second ramp are in partial contact.
5. A fluid pump as defined in claim 1, wherein said fluid conduit bore is provided with a spring seat; the bullet seat includes elasticity vertical seat pipe and shutoff ball.
6. The liquid pump as claimed in claim 5, wherein the lower end of the elastic vertical seat tube is provided with an elastic limiting tube; the upper end of the elastic limiting pipe is hermetically connected with the lower end of the elastic vertical base pipe, the outer wall of the elastic limiting pipe is hermetically contacted with the inner wall of the liquid pipe hole, and the inner diameter of the elastic vertical base pipe is gradually reduced from top to bottom; the lower end of the elastic limiting pipe is also provided with an elastic inverted cone pipe, the upper end of the elastic inverted cone pipe is hermetically connected with the lower end of the elastic limiting pipe, and the outer wall of the elastic inverted cone pipe is in sealing contact with the inner wall of the liquid pipe hole; the elasticity back taper pipe internal diameter reduces from top to bottom gradually.
7. The liquid pump as claimed in claim 5, wherein the upper end of the elastic vertical seat tube is provided with an elastic positive taper tube; the lower end of the elastic forward conical pipe is hermetically connected with the elastic spring seat, and the outer wall of the elastic forward conical pipe is hermetically contacted with the inner wall of the liquid pipe hole; the inner diameter of the elastic forward taper pipe is gradually increased from top to bottom.
8. The liquid pump as claimed in claim 1, wherein the liquid inlet of the liquid feeding passage in the piston rod is arranged at the side of the piston rod.
CN201920404428.0U 2019-03-27 2019-03-27 Liquid pump Active CN209814700U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920404428.0U CN209814700U (en) 2019-03-27 2019-03-27 Liquid pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920404428.0U CN209814700U (en) 2019-03-27 2019-03-27 Liquid pump

Publications (1)

Publication Number Publication Date
CN209814700U true CN209814700U (en) 2019-12-20

Family

ID=68877485

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920404428.0U Active CN209814700U (en) 2019-03-27 2019-03-27 Liquid pump

Country Status (1)

Country Link
CN (1) CN209814700U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111992070A (en) * 2020-09-07 2020-11-27 周夫 Pressure pump type pipeline dosing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111992070A (en) * 2020-09-07 2020-11-27 周夫 Pressure pump type pipeline dosing device

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