CN105221380A - Metering pump - Google Patents
Metering pump Download PDFInfo
- Publication number
- CN105221380A CN105221380A CN201510628468.XA CN201510628468A CN105221380A CN 105221380 A CN105221380 A CN 105221380A CN 201510628468 A CN201510628468 A CN 201510628468A CN 105221380 A CN105221380 A CN 105221380A
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- China
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- pressure
- barrier film
- pressure release
- pedestal
- protecgulum
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Abstract
The invention discloses a kind of metering pump, comprise the pump housing and protecgulum, the barrier film of the pump housing and protecgulum sealing are formed with measuring cavity, protecgulum have entering of being connected with measuring cavity, medicine outlet, and enter, medicine outlet place is respectively equipped with corresponding one-way valve, protecgulum is provided with the pressure release floss hole communicated with measuring room, pressure relief vent, and be arranged on the safety installations at pressure release floss hole place, pressure relief vent and pressure release floss hole are interconnected by pressure release passage, erecting device comprises pedestal, have inside pedestal and inside and outsidely can move and the secondary barrier film of pressure release passage and the pressure ring with secondary membrane engagement can be intercepted, the outer end of pedestal is provided with pressure regulator, stage clip in pedestal is conflicted between pressure regulator and pressure ring, secondary barrier film and pressure ring inwardly intercept pressure release passage under the active force of stage clip, when measuring cavity internal pressure exceedes setting value, secondary barrier film and pressure ring are stressed and act on and automatically move outward, realize releasing pressure automatically, avoid the contingency caused because pressure is excessive between barrier film to chemical feeding points.
Description
Technical field
The present invention relates to a kind of metering pump.
Background technique
Existing metering pump is mainly to add danger and the stronger chemical substance of corrosivity, it mainly comprises the pump housing, driving mechanism, drive motor and protecgulum, described protecgulum have feeding opening and medicine outlet, and feeding opening and medicine outlet place are respectively equipped with corresponding one-way valve, the described pump housing is diaphragm pump, barrier film connection for transmission mechanism, driving mechanism connects drive motor, diaphragm movement is driven when driving mechanism rotates, the cavity volume that barrier film and protecgulum sealing are formed changes, thus fluid transfer, the liquid sucked finally is made to be expelled to toss area through the medicine outlet of protecgulum.
During metering pump project installation, safety relief valve generally all can be installed by spray outlet place, thus ensures that the pressure between Decompression valves to chemical feeding points can not be too high, reaches safety requirement.But, the segment distance uncontrollable not blocked (particularly Outlet check valves the most easily blocks) between from barrier film to safety relief valve.Metering pumps all on the market is at present all helpless, although be equipped with safety relief valve, have metering pump time also because outlet pressure is too high, hazardous chemical sprays from barrier film joint, light then cause blindness or skin burn, heavy then cause personal injury or explosive accident.
Summary of the invention
The present invention seeks to: provide a kind of metering pump, its safety installations according to measuring room internal pressure change releasing pressure automatically, can effectively prevent the contingency caused because pressure is excessive between metering pump barrier film to chemical feeding points, thus ensures safety.
Technological scheme of the present invention is: a kind of metering pump, comprise the pump housing, driving mechanism, drive motor and protecgulum, the barrier film of the described pump housing and protecgulum sealing are formed with the measuring cavity that cavity volume can change, described protecgulum have the feeding opening be connected with measuring cavity and medicine outlet, and feeding opening and medicine outlet place are respectively equipped with corresponding one-way valve, described protecgulum is provided with the pressure release floss hole communicated with measuring room, pressure relief vent, and be arranged on the safety installations at pressure release floss hole place, described pressure relief vent and pressure release floss hole are interconnected by pressure release passage, described erecting device comprises the pedestal being positioned at protecgulum outer side wall place, have inside pedestal and inside and outsidely can move and the secondary barrier film of pressure release passage and the pressure ring with secondary membrane engagement can be intercepted, stage clip is equipped with in the inner chamber of described pedestal, the outer end of pedestal is provided with pressure regulator, described stage clip is conflicted between pressure regulator and pressure ring, secondary barrier film and pressure ring inwardly intercept pressure release passage under the active force of stage clip, when measuring cavity internal pressure exceedes the setting value of erecting device, secondary barrier film and pressure ring are stressed and act on and automatically move outward, stage clip is compressed, originally be blocked pressure release passage to be opened, liquid in measuring cavity is by pressure release floss hole, pressure release passage flows to pressure relief vent and discharges, realize releasing pressure automatically, when pressure recover is to normal value, stage clip drives time barrier film to reset, again intercept pressure release passage, now metering pump normally runs.
Further, described pedestal covers at outside pressure release floss hole, and large step-like of its inner chamber little, interior bore that is outer bore, the inner cavity that bore is little is the installation cavity worn for stage clip, the inner chamber that bore is large is the holding cavity for time barrier film and the inside and outside movement of pressure ring, the connecting place of described pressure release passage and pressure release floss hole is just to secondary barrier film, when mobile inside and outside secondary barrier film is automatic according to the change of measuring room internal pressure, the connecting place of this pressure release passage and pressure release floss hole is blocked thereupon and is opened, and realizes self-closed and releasing pressure automatically.
Further, the external port of described pedestal has outside thread, described pressure regulator is the female cap of tool, its externally threaded screw-thread fit by internal thread and pedestal external port and then the pressure adjusted between stage clip and pressure ring and secondary barrier film, realize the adjustment to erecting device pressure set points.
The liquid of discharging to enable pressure release utilizes again, and above-mentioned pressure relief vent is linked back by pipeline the medicine-chest of metering pump, while cost-saving, it also avoid the pollution of arbitrarily discharging and causing.
Advantage of the present invention is:
1. the safety installations in the present invention according to measuring room internal pressure change releasing pressure automatically, can effectively prevent the contingency caused because pressure is excessive between metering pump barrier film to chemical feeding points, thus ensures safety.
2. the safety installations in the present invention mainly comprises time barrier film, pressure ring, stage clip and pressure regulator, time mobile inside and outside next barrier film is automatic according to the change of measuring room internal pressure, the connecting place of pressure release passage and pressure release floss hole is made to be blocked thereupon and open, and then realize self-closed and releasing pressure automatically, overall structure is simple, and be automatically realize, without the need to manual operation, very convenient.
3. the pressure regulator in the present invention is by the externally threaded screw-thread fit of internal thread and pedestal external port and then the pressure that adjusts between stage clip and pressure ring and secondary barrier film, realize the adjustment to erecting device pressure set points, structure is simple, and adjustment operation is easy, can adjust according to actual service condition, applicability is higher.
4. in the present invention, pressure relief vent is linked back by pipeline the medicine-chest of metering pump, and the liquid of discharging to enable pressure release utilizes again, while cost-saving, it also avoid the pollution of arbitrarily discharging and causing.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1, Fig. 2 are package assembly schematic diagram of the present invention;
Fig. 3 is side structure schematic diagram of the present invention;
Fig. 4 be in Fig. 3 B-B to cross-sectional view;
Fig. 5 be in Fig. 3 C-C to cross-sectional view.
Wherein: 1 pump housing;
2 driving mechanisms;
3 protecgulums; 31 feeding openings; 32 medicine outlets; 33 pressure release floss holes; 34 pressure relief vent; 35 pressure release passages; 36 one-way valves;
4 measuring cavity;
5 safety installationss; 51 pedestals; 511 installation cavitys; 512 holding cavities; 52 barrier films; 53 pressure rings; 54 stage clips; 55 pressure regulator.
Embodiment
Embodiment: as shown in the figure, a kind of metering pump, comprise the pump housing 1, driving mechanism 2, drive motor and protecgulum 3, the barrier film 11 of the described pump housing 1 and protecgulum 3 sealing are formed with the measuring cavity 4 that cavity volume can change, described protecgulum 2 have the feeding opening 31 be connected with measuring cavity 4 and medicine outlet 32, and feeding opening 31 and medicine outlet 32 place are respectively equipped with corresponding one-way valve 36, described protecgulum 3 is provided with the pressure release floss hole 33 communicated with measuring room 4, pressure relief vent 34, and be arranged on the safety installations 5 at pressure release floss hole 33 place, described pressure relief vent 34 is interconnected by pressure release passage 35 with pressure release floss hole 33, described erecting device 5 comprises the pedestal 51 being positioned at protecgulum 3 outer side wall place, have inside pedestal 5 and can inside and outsidely move and the secondary barrier film 52 that can intercept pressure release passage 35 and the pressure ring 53 coordinated with secondary barrier film 52, stage clip 54 is equipped with in the inner chamber of described pedestal 51, the outer end of pedestal 51 is provided with pressure regulator 55, described stage clip 54 is conflicted between pressure regulator 55 and pressure ring 53, secondary barrier film 52 and pressure ring 53 inwardly intercept pressure release passage 35 under the active force of stage clip 54.The liquid of discharging to enable pressure release utilizes again, and above-mentioned pressure relief vent 34 is linked back by pipeline the medicine-chest of metering pump, while cost-saving, it also avoid the pollution of arbitrarily discharging and causing.
In the present embodiment, described pedestal 51 covers at outside pressure release floss hole 33, and its inner chamber is that outer bore is little, large step-like of interior bore, the inner cavity that bore is little is the installation cavity 511 worn for stage clip 54, the inner chamber that bore is large is the holding cavity 512 for time barrier film 52 and the inside and outside movement of pressure ring 53, the connecting place of described pressure release passage 35 and pressure release floss hole 33 is just to secondary barrier film 52, when mobile inside and outside secondary barrier film 52 is automatic according to the change of measuring room 4 internal pressure, this pressure release passage 35 is blocked thereupon with the connecting place of pressure release floss hole 33 and is opened, realize self-closed and releasing pressure automatically.
In the present embodiment, the external port of described pedestal 51 has outside thread, described pressure regulator 55 is the female cap of tool, its externally threaded screw-thread fit by internal thread and pedestal 51 external port and then the pressure adjusted between stage clip 54 and pressure ring 53 and secondary barrier film 52, realize the adjustment to erecting device 5 pressure set points.
In using process, when measuring cavity 4 internal pressure exceedes the setting value of erecting device 5, secondary barrier film 52 and pressure ring 53 are stressed and act on and automatically move outward, and stage clip 54 is compressed, and is originally blocked pressure release passage 35 to be opened, liquid in measuring cavity 4 by pressure release floss hole 33, pressure release passage stream 35 is to pressure relief vent 34 and discharge, realize releasing pressure automatically, when pressure recover is to normal value, stage clip 54 drives time barrier film 52 to reset, again intercept pressure release passage 35, now metering pump normally runs.
Safety installations 5 in the present invention according to measuring room 4 internal pressure change releasing pressure automatically, can effectively prevent the contingency caused because pressure is excessive between metering pump barrier film 11 to chemical feeding points, thus ensures safety.In addition, above-mentioned safety installations 5 overall structure is simple, and is automatically realize, without the need to manual operation, very convenient.Moreover, pressure regulator 55 in safety installations 5 and pedestal 51 external port screw-thread fit and then the pressure adjusted between stage clip 54 and pressure ring 53 and secondary barrier film 52, realize the adjustment to erecting device 5 pressure set points, structure is simple, and adjustment operation is easy, can adjust according to actual service condition, applicability is higher.
Below be only embody rule example of the present invention, protection scope of the present invention is not constituted any limitation.In addition to the implementation, the present invention can also have other mode of execution.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.
Claims (4)
1. a metering pump, comprise the pump housing (1), driving mechanism (2), drive motor and protecgulum (3), the barrier film (11) of the described pump housing (1) and protecgulum (3) sealing are formed with the measuring cavity (4) that cavity volume can change, described protecgulum (2) have the feeding opening (31) and medicine outlet (32) that are connected with measuring cavity (4), and feeding opening (31) and medicine outlet (32) place are respectively equipped with corresponding one-way valve (36), it is characterized in that: described protecgulum (3) is provided with the pressure release floss hole (33) communicated with measuring room (4), pressure relief vent (34), and be arranged on the safety installations (5) at pressure release floss hole (33) place, described pressure relief vent (34) and pressure release floss hole (33) are interconnected by pressure release passage (35), described erecting device (5) comprises the pedestal (51) being positioned at protecgulum (3) outer side wall place, pedestal (5) inner side has can inside and outsidely move and the secondary barrier film (52) that can intercept pressure release passage (35) and the pressure ring (53) coordinated with secondary barrier film (52), stage clip (54) is equipped with in the inner chamber of described pedestal (51), the outer end of pedestal (51) is provided with pressure regulator (55), described stage clip (54) is conflicted between pressure regulator (55) and pressure ring (53), secondary barrier film (52) and pressure ring (53) inwardly intercept pressure release passage (35) under the active force of stage clip (54), when measuring cavity (4) internal pressure exceedes the setting value of erecting device (5), secondary barrier film (52) and pressure ring (53) are stressed and act on and automatically move outward, stage clip (54) is compressed, originally be blocked pressure release passage (35) to be opened, liquid in measuring cavity (4) is by pressure release floss hole (33), pressure release passage stream (35) is to pressure relief vent (34) and discharge, realize releasing pressure automatically, when pressure recover is to normal value, stage clip (54) drives time barrier film (52) to reset, again intercept pressure release passage (35), now metering pump normally runs.
2. a kind of metering pump according to claim 1, it is characterized in that: described pedestal (51) covers at pressure release floss hole (33) outside, and its inner chamber is that outer bore is little, large step-like of interior bore, the inner cavity that bore is little is the installation cavity (511) worn for stage clip (54), the inner chamber that bore is large is the holding cavity (512) for time barrier film (52) and the inside and outside movement of pressure ring (53), the connecting place of described pressure release passage (35) and pressure release floss hole (33) is just to secondary barrier film (52), when mobile inside and outside secondary barrier film (52) is automatic according to the change of measuring room (4) internal pressure, this pressure release passage (35) is blocked thereupon with the connecting place of pressure release floss hole (33) and is opened, realize self-closed and releasing pressure automatically.
3. a kind of metering pump according to claim 1 and 2, it is characterized in that: the external port of described pedestal (51) has outside thread, described pressure regulator (55) is the female cap of tool, its externally threaded screw-thread fit by internal thread and pedestal (51) external port and then the pressure adjusted between stage clip (54) and pressure ring (53) and secondary barrier film (52), realize the adjustment to erecting device (5) pressure set points.
4. a kind of metering pump according to claim 1 and 2, is characterized in that: described pressure relief vent (34) is linked back by pipeline the medicine-chest of metering pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510628468.XA CN105221380A (en) | 2015-09-29 | 2015-09-29 | Metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510628468.XA CN105221380A (en) | 2015-09-29 | 2015-09-29 | Metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105221380A true CN105221380A (en) | 2016-01-06 |
Family
ID=54990567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510628468.XA Pending CN105221380A (en) | 2015-09-29 | 2015-09-29 | Metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221380A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604818A (en) * | 2016-03-22 | 2016-05-25 | 苏州巧若环保科技有限公司 | Liquid-cooling electromagnetic measuring pump |
| CN110354762A (en) * | 2019-07-17 | 2019-10-22 | 郑州磨料磨具磨削研究所有限公司 | A kind of metering discharge device |
| WO2020024953A1 (en) * | 2018-08-01 | 2020-02-06 | 浙江三创生物科技有限公司 | Medicament delivery device, apparatus and assembly |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2177183A (en) * | 1985-07-05 | 1987-01-14 | Mpl Pumps Limited | Vent/relief valve |
| US4990066A (en) * | 1988-08-12 | 1991-02-05 | Hans Kern | Metering pump |
| JPH08506162A (en) * | 1992-06-16 | 1996-07-02 | プロミネント ドジーアテヒニーク ゲゼルシャフト ミット ベシュレンクター ハフツング | Liquid metering pump |
| US6168390B1 (en) * | 1997-03-22 | 2001-01-02 | Henkel Kommanditgesellschaft Auf Aktien | Dosing pump for dosed liquid conveyance |
| CN2509404Y (en) * | 2001-07-28 | 2002-09-04 | 台州市正发通用元件有限公司 | Ball sealing load relief valve |
| CN2644815Y (en) * | 2003-08-27 | 2004-09-29 | 宝山钢铁股份有限公司 | Pressure adjustable venting valve |
| CN2767704Y (en) * | 2005-01-13 | 2006-03-29 | 蔡应麟 | Pressure relief regulating device for diaphragm pump for direct drinking machine |
| CN2859002Y (en) * | 2005-09-05 | 2007-01-17 | 深圳市英尼克电器有限公司 | Diaphragm pump capable of limiting and adjusting pressure |
| CN205025706U (en) * | 2015-09-29 | 2016-02-10 | 苏州巧泰精密机械有限公司 | Dosage pump |
-
2015
- 2015-09-29 CN CN201510628468.XA patent/CN105221380A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2177183A (en) * | 1985-07-05 | 1987-01-14 | Mpl Pumps Limited | Vent/relief valve |
| US4990066A (en) * | 1988-08-12 | 1991-02-05 | Hans Kern | Metering pump |
| JPH08506162A (en) * | 1992-06-16 | 1996-07-02 | プロミネント ドジーアテヒニーク ゲゼルシャフト ミット ベシュレンクター ハフツング | Liquid metering pump |
| US6168390B1 (en) * | 1997-03-22 | 2001-01-02 | Henkel Kommanditgesellschaft Auf Aktien | Dosing pump for dosed liquid conveyance |
| CN2509404Y (en) * | 2001-07-28 | 2002-09-04 | 台州市正发通用元件有限公司 | Ball sealing load relief valve |
| CN2644815Y (en) * | 2003-08-27 | 2004-09-29 | 宝山钢铁股份有限公司 | Pressure adjustable venting valve |
| CN2767704Y (en) * | 2005-01-13 | 2006-03-29 | 蔡应麟 | Pressure relief regulating device for diaphragm pump for direct drinking machine |
| CN2859002Y (en) * | 2005-09-05 | 2007-01-17 | 深圳市英尼克电器有限公司 | Diaphragm pump capable of limiting and adjusting pressure |
| CN205025706U (en) * | 2015-09-29 | 2016-02-10 | 苏州巧泰精密机械有限公司 | Dosage pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604818A (en) * | 2016-03-22 | 2016-05-25 | 苏州巧若环保科技有限公司 | Liquid-cooling electromagnetic measuring pump |
| WO2020024953A1 (en) * | 2018-08-01 | 2020-02-06 | 浙江三创生物科技有限公司 | Medicament delivery device, apparatus and assembly |
| CN110354762A (en) * | 2019-07-17 | 2019-10-22 | 郑州磨料磨具磨削研究所有限公司 | A kind of metering discharge device |
| CN110354762B (en) * | 2019-07-17 | 2021-11-09 | 郑州磨料磨具磨削研究所有限公司 | Metering and draining device |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160106 |