CN110963171A - Displacement pump - Google Patents
Displacement pump Download PDFInfo
- Publication number
- CN110963171A CN110963171A CN201911182548.1A CN201911182548A CN110963171A CN 110963171 A CN110963171 A CN 110963171A CN 201911182548 A CN201911182548 A CN 201911182548A CN 110963171 A CN110963171 A CN 110963171A
- Authority
- CN
- China
- Prior art keywords
- valve core
- seat
- sleeve
- cylindrical
- stop sleeve
- 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.)
- Withdrawn
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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
- B05B11/1028—Pumps having a pumping chamber with a deformable wall
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/105—Sealing arrangements around pump actuating stem
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
A displacement pump comprises a screw thread and a press head, wherein the press head comprises a liquid outlet channel, a cylindrical seat with a lower opening, an outer sleeve body and a guide sleeve; the valve core comprises a valve core cavity with an upper opening, a circular seat plate surrounding the bottom of the valve core cavity and a connector positioned on the lower surface of the circular seat, and the lower valve core sheet is connected with the valve core cavity through a plurality of radial ribs; the inner body is arranged in the guide stop sleeve, the interface is inserted into the annular insertion groove on the annular seat, the lower valve core piece is attached to the valve core seat, and the annular seat plate is attached to the upper end face of the annular seat; the valve core is arranged on the cylindrical valve core seat and matched with the cylindrical seat of the press head; the guide sleeve of the press head is in sliding fit with the guide stop sleeve, and the sealing sleeve of the inner body is in sliding fit with the outer sleeve body of the press head and is sealed in a liquid-gas mode. Compared with the prior art, the structure is simplified and the assembly is convenient because of few parts.
Description
Technical Field
The invention relates to an emulsion pump, in particular to an emulsion pump with variable volume.
Background
Chinese patent ZL201611062350.6, the invention name is: a positive displacement emulsion pump comprises a press head, a lock cover, screw teeth, a main column, a glass ball, a body and a suction pipe arranged at the lower end of the body, wherein the press head comprises a liquid outlet part, an interface pipe part and an outer sleeve part; the variable volume liquid absorbing part is hollow and provided with an upper opening, the bottom plate is provided with a through hole, the valve core piece is arranged in the through hole, and the valve core piece is connected with the through hole through a connecting rib; the volume-variable liquid absorbing piece, the valve core sheet and the connecting ribs are made of plastic or rubber materials; the upper end and the lower connecting part of the volume-variable liquid absorbing piece are fixedly connected and liquid-gas sealed, the lower end is fixedly connected and liquid-gas sealed with the bottom plate of the body, and the valve core piece is matched with the liquid inlet hole. There are problems in that: the structure is complicated, and the assembly is inconvenient.
Disclosure of Invention
The purpose of the invention is: the displacement pump has the characteristics of simple structure and convenience in assembly.
The invention is realized by the following steps: a positive displacement pump comprises a screw thread and a press head, and is characterized in that: the pressing head comprises a liquid outlet channel, a cylindrical seat with a lower opening, an outer sleeve body surrounding the cylindrical seat and a guide sleeve, a gap between the cylindrical seat and the outer sleeve body is a liquid inlet channel, and the liquid inlet channel is communicated with the liquid outlet channel;
the thread is provided with an accommodating cavity extending into an upper opening of the thread, a guide stop sleeve is arranged in the accommodating cavity, the pipette passes through a bottom plate of the accommodating cavity in the guide stop sleeve and extends into the guide stop sleeve, a ring seat with a ring-shaped insertion groove surrounding the upper end of the pipette is arranged in the guide stop sleeve, and the part of the pipette in the guide stop sleeve is a valve core seat;
also comprises an inner body, a lower valve core sheet and a valve core,
the inner body is sequentially provided with a sealing sleeve with an upper opening, a cylindrical valve core seat, a volume-variable part and a lower valve core seat from top to bottom, the lower valve core seat comprises a valve core cavity with an upper opening, a circular seat plate surrounding the bottom of the valve core cavity and a port positioned on the lower surface of the circular seat, and a lower valve core sheet is connected with the valve core cavity through a plurality of radial ribs;
the inner body is arranged in the guide stop sleeve, the interface is inserted into the annular insertion groove on the annular seat, the lower valve core piece is attached to the valve core seat, and the annular seat plate is attached to the upper end face of the annular seat; the valve core is arranged on the cylindrical valve core seat and matched with the cylindrical seat of the press head; the guide sleeve of the press head is in sliding fit with the guide stop sleeve, and the sealing sleeve of the inner body is in sliding fit with the outer sleeve body of the press head and is sealed in a liquid-gas mode.
The displacement pump is characterized in that: the upper portion of the guide stop sleeve is provided with an outer annular protrusion surrounding an outer circumferential surface, an inner annular protrusion is arranged on an inner circumferential surface of the guide sleeve, and the inner annular protrusion and the outer annular protrusion are matched to stop.
The displacement pump is characterized in that: the valve core comprises a hollow core part with an upper opening and a stop sleeve surrounding the core part, the core part extends into the cylindrical valve core seat, and the stop sleeve is matched with the lower end of the cylindrical seat of the press head; the lower end of the stop sleeve is matched with the upper end of the cylindrical valve core seat for stopping.
The displacement pump is characterized in that: the inner body is made of an elastic material.
The displacement pump is characterized in that: the inner wall of the cylindrical valve core seat is in an inverted cone frustum shape.
The displacement pump is characterized in that: the valve core seat is provided with at least three crossed radial rib plates.
Compared with the prior art, the displacement pump adopting the structure has the advantages of fewer parts, simplified structure and convenience in assembly.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Figure 2 is a perspective view of the present invention.
Fig. 3 is one of the exploded perspective views of the present invention.
Fig. 4 is a second exploded perspective view of the present invention.
Fig. 5 is a perspective view of the valve cartridge of the present invention.
Fig. 6 is a top view of the screw thread of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, a displacement pump comprises a thread 1 and a press head 2, wherein the press head 2 comprises a liquid outlet channel 21, a cylindrical seat 22 with a lower opening, an outer sleeve 23 surrounding the cylindrical seat and a guide sleeve 24, a gap between the cylindrical seat 22 and the outer sleeve 23 is a liquid inlet channel 25, and the liquid inlet channel 25 is communicated with the liquid outlet channel 21;
the thread 1 is provided with an accommodating cavity 11 extending into an upper opening of the thread, a guide stop sleeve 12 is arranged in the accommodating cavity 11, a pipette 13 penetrates through a bottom plate of the accommodating cavity 11 in the guide stop sleeve 12 and extends into the guide stop sleeve 12, a circular ring seat 14 with a circular ring-shaped insertion groove surrounding the upper end of the pipette 13 is arranged in the guide stop sleeve 12, and a valve core seat 15 is arranged at the position of the pipette 13 in the guide stop sleeve 12;
also comprises an inner body 3, a lower valve core sheet 4 and a valve core 5,
the inner body 3 is sequentially provided with a sealing sleeve 31 with an upper opening, a cylindrical valve core seat 32, a volume-variable part 33 and a lower valve core seat from top to bottom, the lower valve core seat comprises a valve core cavity 34 with an upper opening, a circular seat plate 35 surrounding the bottom of the valve core cavity and a port 36 positioned on the lower surface of the circular seat, and the lower valve core piece 4 is connected with the valve core cavity 34 through a plurality of radial ribs; the variable volume part 33 is formed by circular ring-shaped ripples, or the variable volume part 33 is formed by spiral ripples; the inner body 3 is made of a rubber material or a plastic material by one-step molding.
The inner body 3 is arranged in the guide stop sleeve 12, the interface 36 is inserted into the circular insertion groove on the circular ring seat 14, the lower valve core sheet 4 is attached to the valve core seat 15, and the circular ring seat plate 35 is attached to the upper end face of the circular ring seat 14; the valve core 5 is arranged on the cylindrical valve core seat 32, and the valve core 5 is matched with the cylindrical seat 22 of the press head 1; the guide sleeve 24 of the press head 2 is in sliding fit with the guide stop sleeve 12, and the sealing sleeve 31 of the inner body 3 is in sliding fit with the outer sleeve 23 of the press head 2 and is liquid-gas sealed.
The inner wall of the cylindrical valve core seat 32 is in the shape of an inverted conical frustum with a conical angle α.
The valve core seat 15 is provided with three crossed radial rib plates 151.
The upper part of the guide stop sleeve 12 is provided with an outer annular protrusion 121 surrounding the outer circumferential surface, the inner circumferential surface of the guide sleeve 24 is provided with an inner annular protrusion 241, and the inner annular protrusion 241 and the outer annular protrusion 121 are matched for stopping. With this structure, the push head 2 and the guide stopper sleeve 12 are always connected together.
The valve core 5 comprises a hollow core part 51 with an upper opening and a stop sleeve 52 surrounding the core part, wherein the stop sleeve 52 comprises an inverted conical frustum-shaped part 521 positioned at the lower part and intersected with the core part 51 and a cylindrical part 522 positioned at the upper part;
the core part 51 extends into the cylindrical valve core seat 32, and the stop sleeve 52 is matched with the lower end of the cylindrical seat 22 of the press head 2; the lower end of the stop sleeve 52 is matched with the upper end of the cylindrical valve core seat 32 for stopping.
Fig. 1 and 2 are views of the present invention in a static state, i.e., in a standby state. The press head 2 is pressed down, the inner body 3 deforms, the lower valve core piece 4 is in liquid-gas sealing with the valve core seat 15, the gas in the inner body 3 forces the valve core 5 to move upwards, the lower end of the cylindrical seat 22 extends into the stop sleeve 52 of the valve core 5 and is in liquid sealing, liquid enters the sealing sleeve 31 through the cylindrical valve core seat 32, then enters the liquid inlet channel 25 through the sealing sleeve 31 and is sprayed out through the liquid outlet channel 21.
The press head 2 loses pressure, and the press head 2 moves upwards under the action of the inner body 3; the valve core 5 is sealed with the cylindrical valve core seat 32 in a liquid-gas manner, a sub-vacuum state is formed in the inner body 3 to generate suction force, and liquid enters the volume-variable part 33 of the inner body 3 through a gap between the liquid suction pipe 13, the lower valve core sheet 4 and the valve core seat 15 and a gap between the lower valve core sheet 4 and the valve core cavity 34;
when the press head 2 is pressed down again, the upper valve chip 4 is sealed with the valve core seat 15; the valve core 5 leaves the cylindrical valve core seat 32, and the liquid enters the sealing sleeve 31, then enters the liquid inlet channel 25 from the sealing sleeve 31 and is sprayed out through the liquid outlet channel 21.
What has been described above is merely a preferred embodiment of the present invention. It should be noted that a person skilled in the art could make several modifications and variations without departing from the principle of the present invention, which should also be regarded as the protection scope of the present invention.
Claims (6)
1. A positive displacement pump comprises a screw thread and a press head, and is characterized in that: the pressing head comprises a liquid outlet channel, a cylindrical seat with a lower opening, an outer sleeve body surrounding the cylindrical seat and a guide sleeve, a gap between the cylindrical seat and the outer sleeve body is a liquid inlet channel, and the liquid inlet channel is communicated with the liquid outlet channel;
the thread is provided with an accommodating cavity extending into an upper opening of the thread, a guide stop sleeve is arranged in the accommodating cavity, the pipette passes through a bottom plate of the accommodating cavity in the guide stop sleeve and extends into the guide stop sleeve, a ring seat with a ring-shaped insertion groove surrounding the upper end of the pipette is arranged in the guide stop sleeve, and the part of the pipette in the guide stop sleeve is a valve core seat;
also comprises an inner body, a lower valve core sheet and a valve core,
the inner body is sequentially provided with a sealing sleeve with an upper opening, a cylindrical valve core seat, a volume-variable part and a lower valve core seat from top to bottom, the lower valve core seat comprises a valve core cavity with an upper opening, a circular seat plate surrounding the bottom of the valve core cavity and a port positioned on the lower surface of the circular seat, and a lower valve core sheet is connected with the valve core cavity through a plurality of radial ribs;
the inner body is arranged in the guide stop sleeve, the interface is inserted into the annular insertion groove on the annular seat, the lower valve core piece is attached to the valve core seat, and the annular seat plate is attached to the upper end face of the annular seat; the valve core is arranged on the cylindrical valve core seat and matched with the cylindrical seat of the press head; the guide sleeve of the press head is in sliding fit with the guide stop sleeve, and the sealing sleeve of the inner body is in sliding fit with the outer sleeve body of the press head and is sealed in a liquid-gas mode.
2. A positive-displacement pump according to claim 1, wherein: the upper portion of the guide stop sleeve is provided with an outer annular protrusion surrounding an outer circumferential surface, an inner annular protrusion is arranged on an inner circumferential surface of the guide sleeve, and the inner annular protrusion and the outer annular protrusion are matched to stop.
3. A positive-displacement pump according to claim 1, wherein: the valve core comprises a hollow core part with an upper opening and a stop sleeve surrounding the core part, the core part extends into the cylindrical valve core seat, and the stop sleeve is matched with the lower end of the cylindrical seat of the press head; the lower end of the stop sleeve is matched with the upper end of the cylindrical valve core seat for stopping.
4. A positive-displacement pump according to claim 1, wherein: the inner body is made of an elastic material.
5. A positive-displacement pump according to claim 1, wherein: the inner wall of the cylindrical valve core seat is in an inverted cone frustum shape.
6. A positive-displacement pump according to claim 1, 2, 3 or 4, wherein: the valve core seat is provided with at least three crossed radial rib plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911182548.1A CN110963171A (en) | 2019-11-27 | 2019-11-27 | Displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911182548.1A CN110963171A (en) | 2019-11-27 | 2019-11-27 | Displacement pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110963171A true CN110963171A (en) | 2020-04-07 |
Family
ID=70031803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911182548.1A Withdrawn CN110963171A (en) | 2019-11-27 | 2019-11-27 | Displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110963171A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09142556A (en) * | 1995-11-27 | 1997-06-03 | Puresuko Kk | Pump type fluid dispensation container |
| US5664703A (en) * | 1994-02-28 | 1997-09-09 | The Procter & Gamble Company | Pump device with collapsible pump chamber having supply container venting system and integral shipping seal |
| WO2010106256A1 (en) * | 2009-03-18 | 2010-09-23 | Promens Sa | Device for dispensing a liquid-to-pasty product using a metering pump having a low dead volume |
| US20100294805A1 (en) * | 2007-06-29 | 2010-11-25 | Guentor Pohlmann | Dispenser for dispensing liquid or pasty materials |
| CN201961688U (en) * | 2010-12-31 | 2011-09-07 | 深圳市通产丽星股份有限公司 | Vacuum pump head pipe |
| FR2984768A1 (en) * | 2011-12-22 | 2013-06-28 | Rexam Dispensing Sys | Distribution system for use in distribution bottle for distributing e.g. lotion of cosmetic product, has downstream closing unit opened by applying pressure on product, which is delivered in distribution pipe through exhaust valve |
| WO2019102106A1 (en) * | 2017-11-21 | 2019-05-31 | Promens Sa | Dispensing device with metering chamber with bellows and inlet valve shutter two-shot injection moulded |
-
2019
- 2019-11-27 CN CN201911182548.1A patent/CN110963171A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5664703A (en) * | 1994-02-28 | 1997-09-09 | The Procter & Gamble Company | Pump device with collapsible pump chamber having supply container venting system and integral shipping seal |
| JPH09142556A (en) * | 1995-11-27 | 1997-06-03 | Puresuko Kk | Pump type fluid dispensation container |
| US20100294805A1 (en) * | 2007-06-29 | 2010-11-25 | Guentor Pohlmann | Dispenser for dispensing liquid or pasty materials |
| WO2010106256A1 (en) * | 2009-03-18 | 2010-09-23 | Promens Sa | Device for dispensing a liquid-to-pasty product using a metering pump having a low dead volume |
| CN201961688U (en) * | 2010-12-31 | 2011-09-07 | 深圳市通产丽星股份有限公司 | Vacuum pump head pipe |
| FR2984768A1 (en) * | 2011-12-22 | 2013-06-28 | Rexam Dispensing Sys | Distribution system for use in distribution bottle for distributing e.g. lotion of cosmetic product, has downstream closing unit opened by applying pressure on product, which is delivered in distribution pipe through exhaust valve |
| WO2019102106A1 (en) * | 2017-11-21 | 2019-05-31 | Promens Sa | Dispensing device with metering chamber with bellows and inlet valve shutter two-shot injection moulded |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200407 |