CN116816651B - High-strength reciprocating hydraulic diaphragm pump - Google Patents
High-strength reciprocating hydraulic diaphragm pump Download PDFInfo
- Publication number
- CN116816651B CN116816651B CN202310405453.1A CN202310405453A CN116816651B CN 116816651 B CN116816651 B CN 116816651B CN 202310405453 A CN202310405453 A CN 202310405453A CN 116816651 B CN116816651 B CN 116816651B
- Authority
- CN
- China
- Prior art keywords
- cavity
- piston
- check valve
- liquid channel
- valve group
- 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.)
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Links
- 239000007788 liquid Substances 0.000 claims abstract description 65
- 238000004140 cleaning Methods 0.000 claims abstract description 53
- 239000010720 hydraulic oil Substances 0.000 claims description 35
- 239000011344 liquid material Substances 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
- F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a high-strength reciprocating hydraulic diaphragm pump, which can drive a first cleaning assembly to move through a first piston when a diaphragm is deflected to realize continuous conveying of liquid materials so as to continuously clean the connecting end surface of a suction check valve group and a liquid channel through the first cleaning assembly, and can drive a second cleaning assembly to move through a second piston so as to continuously clean the connecting end surface of a discharge check valve group and the liquid channel through the second cleaning assembly. The invention can avoid the impurity accumulating at the corner of the joint of the one-way valve and the pump head, thereby preventing the one-way valve from being blocked.
Description
Technical Field
The invention relates to the technical field of diaphragm pumps, in particular to a high-strength reciprocating hydraulic diaphragm pump.
Background
The reciprocating hydraulic diaphragm pump is based on a reciprocating plunger pump, and a plunger pump head is updated into a hydraulic diaphragm pump head structure. The diaphragm has the function of avoiding direct contact between the conveyed materials, the plunger and the plunger packing, has more advanced sealing performance, can realize no leakage and has longer service life. Is a very critical device in the fields of conveying highly corrosive, dangerous chemicals, sanitary medicines and the like.
The working principle of the hydraulic diaphragm pump is as follows: the plunger pushes hydraulic oil, the hydraulic oil pushes the diaphragm to flex and deform, the diaphragm extrudes and conveys materials, and the materials are discharged out of the pump cavity through the one-way valve. The plunger reciprocates, so that the suction and discharge of the diaphragm to the conveyed materials are realized, and the continuous conveying of the liquid materials is realized.
The disadvantages of the current hydraulic diaphragm pump are: when the materials conveyed by the hydraulic diaphragm pump contain more solid impurities, the impurities are easy to accumulate at the corner position of the joint of the one-way valve and the pump head, and the opening of the one-way valve is easy to be blocked after the impurities accumulate more, so that the liquid conveying efficiency of the hydraulic diaphragm pump is reduced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-strength reciprocating hydraulic diaphragm pump, which can prevent impurities from accumulating at the corner position of the joint of a one-way valve and a pump head, thereby preventing the one-way valve from being blocked.
In order to solve the technical problems, the high-strength reciprocating hydraulic diaphragm pump provided by the invention comprises:
The pump head is internally provided with a diaphragm cavity, a diaphragm, a liquid channel, a first flow channel and a second flow channel, the diaphragm divides the diaphragm cavity into a first cavity and a second cavity, the second cavity is communicated with the liquid channel, two ends of the liquid channel penetrate through and extend to two side walls of the pump head, a suction check valve group is arranged at one end of the liquid channel, a discharge check valve group is arranged at the other end of the liquid channel, one end of the first flow channel is communicated with the second cavity, the other end of the first flow channel is communicated with the position, close to the suction check valve group, of the liquid channel, a first piston is arranged in the first flow channel, and a first cleaning assembly capable of synchronously moving along with the first piston to clean the connecting end face of the suction check valve group and the liquid channel is arranged on the first piston; one end of the second flow passage is communicated with the first cavity, the other end of the second flow passage is communicated with a position, close to the discharge check valve group, of the liquid passage, a second piston is arranged in the second flow passage, and a second cleaning assembly capable of synchronously moving along with the second piston to clean the connecting end face of the discharge check valve group and the liquid passage is arranged on the second piston;
the piston cylinder is internally provided with a hydraulic oil cavity and a plunger, the hydraulic oil cavity is communicated with the first cavity through a plurality of through holes, and the hydraulic oil cavity and the first cavity are filled with hydraulic oil;
The driving mechanism is used for driving the plunger to slide back and forth in the hydraulic oil cavity in a reciprocating manner;
The first runner is divided into a first front section, a first middle section and a first rear section, one end of the first front section is communicated with the second cavity, the other end of the first front section is vertically connected with one end of the first middle section, the other end of the first middle section is vertically connected with one end of the first rear section, the other end of the first rear section is communicated with the liquid channel, the axis of the first rear section is vertical to the axis of the suction check valve set, the first piston is arranged in the first rear section, a first annular bulge is arranged on the inner wall of the first rear section, and a first pressure spring is arranged between the first piston and the first annular bulge.
Preferably, the first cleaning component comprises an L-shaped first cleaning sheet, one end of the first cleaning sheet is connected with the first piston, and the other end of the first cleaning sheet is attached to the connecting end face of the suction check valve group and the liquid channel.
Preferably, the first cleaning sheet has elasticity.
Preferably, the second runner is divided into a second front section, a second middle section and a second rear section, one end of the second front section is communicated with the first cavity, the other end of the second front section is vertically connected with one end of the second middle section, the other end of the second middle section is vertically connected with one end of the second rear section, the other end of the second rear section is communicated with the liquid channel, the axis of the second rear section is vertical to the axis of the discharge check valve set, the second piston is arranged in the second rear section, a second annular bulge is arranged on the inner wall of the second rear section, and a second pressure spring is arranged between the second piston and the second annular bulge.
Preferably, the second cleaning assembly comprises an L-shaped second cleaning sheet, one end of the second cleaning sheet is connected with the second piston, and the other end of the second cleaning sheet is attached to the connecting end face of the discharge check valve group and the liquid channel.
Preferably, the second cleaning sheet has elasticity.
Preferably, the first front section and the second front section are respectively provided with an electromagnetic valve, and a switch is used for controlling the on-off of the two electromagnetic valves.
After adopting the structure, compared with the prior art, the invention has the following advantages:
when the hydraulic diaphragm pump is used, the driving mechanism drives the plunger to reciprocate back and forth in the hydraulic oil cavity of the piston cylinder, the plunger pushes hydraulic oil in the hydraulic oil cavity, the hydraulic oil pushes the diaphragm to flex and deform, when the diaphragm deforms to one side close to the hydraulic oil cavity, the second cavity of the diaphragm cavity becomes larger, so that liquid materials are sucked into the liquid channel through the suction check valve group, meanwhile, hydraulic oil in the first cavity of the diaphragm cavity is pressed into the second flow channel to push the second piston to move forward, the second piston drives the second cleaning assembly to clean the connecting end face of the discharge check valve group and the liquid channel when moving forward, at the moment, the second spring is compressed, and the second spring can push the second piston to reset when the second piston loses the top pressure of the hydraulic oil;
when the diaphragm deforms to one side far away from the hydraulic oil cavity, the second cavity of the diaphragm cavity is reduced, so that liquid materials are discharged through the discharge check valve group, meanwhile, liquid in the second cavity of the diaphragm cavity is pressed into the first flow channel to push the first piston to move forwards, the first piston is driven to clean the connecting end face of the suction check valve group and the liquid channel when moving forwards, at the moment, the first spring is compressed, and the first spring can push the first piston to reset when the first piston loses the top pressure of the liquid;
Therefore, when the diaphragm is deformed to realize continuous conveying of liquid materials, the connecting end face of the discharge check valve group and the liquid channel and the connecting end face of the suction check valve group and the liquid channel can be continuously cleaned, so that impurities can be prevented from accumulating at the corner position of the connecting part of the check valve and the pump head, and the check valve can be prevented from being blocked.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view of area A of FIG. 1;
fig. 3 is an enlarged view of region B in fig. 1.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1, 2 and 3, the high-strength reciprocating hydraulic diaphragm pump of the present invention includes a pump head 10, a piston cylinder 20 and a driving mechanism.
The pump head 10 is internally provided with a diaphragm cavity 11, a diaphragm 12, a liquid channel 14, a first flow channel 15 and a second flow channel 17, the pump head 10 is formed by involution and connection of a first plate body 101 and a second plate body 102, the diaphragm cavity 11 is formed by encircling the first plate body 101 and the second plate body 102, the periphery of the diaphragm 12 is clamped and fixed by the first plate body 101 and the second plate body 102, the diaphragm 12 divides the diaphragm cavity 11 into a first cavity 111 and a second cavity 112, the second cavity 112 is communicated with the liquid channel 14, two ends of the liquid channel 14 penetrate through two side walls extending to the pump head 10, a suction check valve group 30 is arranged at one end of the liquid channel 14, and a discharge check valve group 40 is arranged at the other end of the liquid channel 14.
One end of the first flow channel 15 is communicated with the second cavity 112, the other end of the first flow channel 15 is communicated with a position, close to the suction check valve set 30, of the liquid channel 14, a first piston 16 is arranged in the first flow channel 15, a first cleaning component capable of synchronously moving along with the first piston 16 to clean the connecting end face of the suction check valve set 30 and the liquid channel 14 is arranged on the first piston 16, and the first cleaning component extends into the liquid channel 14 from the first flow channel 15.
The first flow channel 15 is divided into a first front section 151, a first middle section 152 and a first rear section 153, one end of the first front section 151 is communicated with the second cavity 112, the other end of the first front section 151 is vertically connected with one end of the first middle section 152, the other end of the first middle section 152 is vertically connected with one end of the first rear section 153, the other end of the first rear section 153 is communicated with the liquid channel 14, the axis of the first rear section 153 is vertical to the axis of the suction check valve set 30, the suction check valve set 30 and the liquid channel 14 are coaxially arranged, the first piston 16 is arranged in the first rear section 153, a first annular protrusion 1531 is arranged on the inner wall of the first rear section 153, and a first compression spring 191 is arranged between the first piston 16 and the first annular protrusion 1531.
The first cleaning component comprises an L-shaped first cleaning sheet 51, one end of the first cleaning sheet 51 is connected with the first piston 16, and the other end of the first cleaning sheet 51 is attached to the connecting end surface of the suction check valve set 30 and the liquid channel 14, so that when the first piston 16 drives the first cleaning sheet 51 to move, the first cleaning sheet 51 can clean the connecting end surface of the suction check valve set 30 and the liquid channel 14.
The first cleaning sheet 51 has elasticity so that the first cleaning sheet 51 does not scratch the suction check valve set 30.
One end of the second flow channel 17 is communicated with the first cavity 111, the other end of the second flow channel 17 is communicated with a position, close to the discharge check valve set 40, of the liquid channel 14, one part of the second flow channel 17 is located on the first plate body 101, the other part of the second flow channel 17 is located on the second plate body 102, when the first plate body 101 and the second plate body 102 are connected in a butt joint mode, after the first plate body 101 and the second plate body 102 are connected in a butt joint mode, the second flow channel 17 is internally provided with a second piston 18, the second piston 18 is provided with a second cleaning assembly capable of synchronously moving along with the second piston 18 to clean the connecting end face of the discharge check valve set 40 and the liquid channel 14, and the second cleaning assembly extends into the liquid channel 14 from the second flow channel 17.
The second flow channel 17 is divided into a second front section 171, a second middle section 172 and a second rear section 173, one end of the second front section 171 is communicated with the first cavity 111, the other end of the second front section 171 is vertically connected with one end of the second middle section 172, the other end of the second middle section 172 is vertically connected with one end of the second rear section 173, the other end of the second rear section 173 is communicated with the liquid channel 14, the axis of the second rear section 173 is vertical to the axis of the discharge check valve set 40, the discharge check valve set 40 is coaxially arranged with the liquid channel 14, the second piston 18 is arranged in the second rear section 173, a second annular protrusion 1731 is arranged on the inner wall of the second rear section 173, and a second pressure spring 192 is arranged between the second piston 18 and the second annular protrusion 1731.
The second cleaning assembly comprises an L-shaped second cleaning sheet 52, one end of the second cleaning sheet 52 is connected with the second piston 18, and the other end of the second cleaning sheet 52 is attached to the connecting end surface of the discharge check valve set 40 and the liquid channel 14, so that when the second piston 18 drives the second cleaning sheet 52 to move, the second cleaning sheet 52 can clean the connecting end surface of the discharge check valve set 40 and the liquid channel 14.
The second cleaning sheet 52 has elasticity so that the second cleaning sheet 52 does not scratch the discharge check valve group 40.
The piston cylinder 20 is internally provided with a hydraulic oil cavity 21 and a plunger 22, the hydraulic oil cavity 21 and the first cavity 111 are communicated through a plurality of through holes 13, and the hydraulic oil cavity 21 and the first cavity 111 are filled with hydraulic oil.
The driving mechanism is used for driving the plunger 22 to reciprocate back and forth in the hydraulic oil chamber 21.
The first front section 151 and the second front section 171 are respectively provided with an electromagnetic valve 60, and a switch is used for controlling the on-off of the two electromagnetic valves 60, so that when the liquid material conveyed by the hydraulic diaphragm pump does not contain impurities, the two electromagnetic valves 60 can be controlled to be closed, hydraulic oil cannot enter the second flow passage, and liquid cannot enter the first flow passage 15, so that when the hydraulic diaphragm pump works, the first piston 16 and the second piston 18 cannot move, and the first plot component and the second cleaning component cannot work; when the liquid material conveyed by the hydraulic diaphragm pump contains more solid particle impurities, the two electromagnetic valves 60 can be controlled to be opened, so that hydraulic oil can enter the second flow channel, and liquid can also enter the first flow channel 15, so that when the hydraulic diaphragm pump works, the first piston 16 and the second piston 18 can continuously move, thereby driving the first plot assembly to clean the connecting end face of the suction check valve group and the liquid channel and the second cleaning assembly to clean the connecting end face of the discharge check valve group and the liquid channel.
And a drain hole is formed on the outer wall of the second plate 102 of the pump head 10, the drain hole is communicated with the first middle section 152 of the first flow channel 15, and a sealing plug 100 is arranged on the drain hole, so that when the hydraulic diaphragm pump is not used, if the residual liquid in the first flow channel 15 needs to be emptied, the sealing plug 100 can be pulled out, so that the liquid in the first flow channel 15 can be discharged through the drain hole.
When the hydraulic diaphragm pump of this embodiment is in use, the driving mechanism drives the plunger 22 to reciprocate back and forth in the hydraulic oil cavity 21 of the piston cylinder 20, the plunger 22 pushes hydraulic oil in the hydraulic oil cavity, the hydraulic oil pushes the diaphragm 12 to deform in a flexing manner, when the diaphragm 12 deforms to a side close to the hydraulic oil cavity 21, the second cavity 112 of the diaphragm cavity 11 becomes larger, so that liquid materials are sucked into the liquid channel 14 through the suction check valve set 30, meanwhile, hydraulic oil in the first cavity 111 of the diaphragm cavity 11 is pressed into the second flow channel 17 to push the second piston 18 to move forward, and when the second piston 18 moves forward, the second cleaning assembly is driven to clean the connecting end surface of the discharge check valve set 40 and the liquid channel 14, at this time, the second spring 192 is compressed, and the second spring 192 can push the second piston 18 to reset when the second piston 18 loses the top pressure of the hydraulic oil;
when the diaphragm 12 deforms to the side far away from the hydraulic oil cavity 21, the second cavity 112 of the diaphragm cavity 11 becomes smaller, so that liquid material is discharged through the discharge check valve set 40, meanwhile, liquid in the second cavity 112 of the diaphragm cavity 11 is pressed into the first flow channel 15 to push the first piston 16 to move forward, the first piston 16 is driven to clean the connecting end face of the suction check valve set 30 and the liquid channel 14 when moving forward, at the moment, the first spring 191 is compressed, and the first spring 191 can push the first piston 16 to reset when the first piston 16 loses the top pressure of the liquid.
The above description is only given for the preferred example of the application of the present invention, but it is not to be construed as limiting the claims, and the structure of the present invention can be changed in other ways, not limited to the above-described structure. In general, all changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (7)
1. A high strength reciprocating hydraulic diaphragm pump comprising:
The novel cleaning device comprises a pump head (10), wherein a diaphragm cavity (11), a diaphragm (12), a liquid channel (14), a first flow channel (15) and a second flow channel (17) are arranged in the pump head (10), the diaphragm (12) divides the diaphragm cavity (11) into a first cavity (111) and a second cavity (112), the second cavity (112) is communicated with the liquid channel (14), two ends of the liquid channel (14) penetrate through two side walls extending to the pump head (10), a suction check valve group (30) is arranged at one end of the liquid channel (14), a discharge check valve group (40) is arranged at the other end of the liquid channel (14), one end of the first flow channel (15) is communicated with the second cavity (112), the other end of the first flow channel (15) is communicated with a position, close to the suction check valve group (30), of the liquid channel (14), a first piston (16) is arranged in the first flow channel (15), and the first piston (16) moves synchronously so as to clean a first cleaning component connected with the end face (14) of the suction check valve group; one end of the second flow channel (17) is communicated with the first cavity (111), the other end of the second flow channel (17) is communicated with the position, close to the discharge check valve group (40), of the liquid channel (14), a second piston (18) is arranged in the second flow channel (17), and a second cleaning assembly capable of synchronously moving along with the second piston (18) to clean the connecting end face of the discharge check valve group (40) and the liquid channel (14) is arranged on the second piston (18);
The piston cylinder (20), is provided with the hydraulic oil cavity (21) and plunger (22) in the piston cylinder (20), link to each other through a plurality of through-holes (13) between hydraulic oil cavity (21) and the first cavity (111), hydraulic oil cavity (21) and first cavity (111) are filled with hydraulic oil;
the driving mechanism is used for driving the plunger (22) to slide back and forth in the hydraulic oil cavity (21) in a reciprocating manner;
The first runner (15) divide into first anterior segment (151), first middle section (152) and first back end (153), the one end and the second cavity (112) of first anterior segment (151) are linked together, the other end of first anterior segment (151) is connected perpendicularly with the one end of first middle section (152), the other end of first middle section (152) is connected perpendicularly with the one end of first back end (153), the other end of first back end (153) is linked together with liquid passageway (14), the axis of first back end (153) is perpendicular with the axis of inhaling check valve group (30), first piston (16) set up in first back end (153), be provided with first annular bulge (1531) on the inner wall of first back end (153), be provided with first pressure spring (191) between first piston (16) and the first annular bulge (1531).
2. The high-strength reciprocating hydraulic diaphragm pump of claim 1, wherein the first cleaning assembly comprises an L-shaped first cleaning sheet (51), one end of the first cleaning sheet (51) is connected with the first piston (16), and the other end of the first cleaning sheet (51) is attached to the connecting end surface of the suction check valve set (30) and the liquid channel (14).
3. The high strength reciprocating hydraulic diaphragm pump of claim 2 wherein the first cleaning sheet (51) is resilient.
4. A high-strength reciprocating hydraulic diaphragm pump according to claim 3, wherein the second flow passage (17) is divided into a second front section (171), a second middle section (172) and a second rear section (173), one end of the second front section (171) is communicated with the first cavity (111), the other end of the second front section (171) is vertically connected with one end of the second middle section (172), the other end of the second middle section (172) is vertically connected with one end of the second rear section (173), the other end of the second rear section (173) is communicated with the liquid channel (14), the axis of the second rear section (173) is vertical to the axis of the discharge check valve (40), the second piston (18) is arranged in the second rear section (173), a second annular protrusion (1731) is arranged on the inner wall of the second rear section (173), and a second pressure spring (192) is arranged between the second piston (18) and the second annular protrusion (1731).
5. The high-strength reciprocating hydraulic diaphragm pump of claim 4 wherein the second cleaning assembly comprises an L-shaped second cleaning sheet (52), one end of the second cleaning sheet (52) being connected to the second piston (18), the other end of the second cleaning sheet (52) being attached to the connecting end face of the discharge check valve group (40) and the liquid passage (14).
6. The high strength reciprocating hydraulic diaphragm pump of claim 5 wherein said second cleaning sheet (52) is resilient.
7. The high-strength reciprocating hydraulic diaphragm pump of claim 6 wherein solenoid valves (60) are disposed in the first and second front sections (151, 171), a switch being used to control the on-off of both solenoid valves (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310405453.1A CN116816651B (en) | 2023-04-12 | 2023-04-12 | High-strength reciprocating hydraulic diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310405453.1A CN116816651B (en) | 2023-04-12 | 2023-04-12 | High-strength reciprocating hydraulic diaphragm pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116816651A CN116816651A (en) | 2023-09-29 |
| CN116816651B true CN116816651B (en) | 2024-04-30 |
Family
ID=88121139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310405453.1A Active CN116816651B (en) | 2023-04-12 | 2023-04-12 | High-strength reciprocating hydraulic diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116816651B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB181064A (en) * | 1921-11-18 | 1922-06-15 | Frank Pullen Candy | Improvements in connection with pumping or forcing liquids |
| FR1291604A (en) * | 1961-03-13 | 1962-04-27 | Materiel Pour La Rech Et L Exp | Method and device for washing parts moving in a translational or rotational movement, passing through stuffing boxes or similar assemblies and in contact with a liquid containing solid particles |
| DE2216215A1 (en) * | 1972-04-04 | 1973-10-18 | Ott Kg Lewa | DIAPHRAGM PUMP |
| JP2002195161A (en) * | 2000-12-22 | 2002-07-10 | Sakura Seisakusho:Kk | Pump structure |
| CN206860415U (en) * | 2017-03-03 | 2018-01-09 | 广州拓跃环保设备有限公司 | A kind of high pressure resistant hydraulic diaphragm metering pump |
| CN212959365U (en) * | 2020-08-05 | 2021-04-13 | 濮阳职业技术学院 | Electric control pressure relief mechanism with differential function |
| CN213450782U (en) * | 2020-10-21 | 2021-06-15 | 常州拓川泵业科技有限公司 | Aluminum alloy pneumatic diaphragm pump convenient to clean |
| CN215719463U (en) * | 2021-09-30 | 2022-02-01 | 重庆水泵厂有限责任公司 | Diaphragm pump hydraulic end washing device |
| CN216342617U (en) * | 2021-05-17 | 2022-04-19 | 浙江力高泵业科技有限公司 | Ultrahigh pressure metering pump adopting metal diaphragm structure |
| CN114941618A (en) * | 2022-06-10 | 2022-08-26 | 衡阳市金刚喜科技有限公司 | Diaphragm pump for water dispenser with impurity removal function |
-
2023
- 2023-04-12 CN CN202310405453.1A patent/CN116816651B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB181064A (en) * | 1921-11-18 | 1922-06-15 | Frank Pullen Candy | Improvements in connection with pumping or forcing liquids |
| FR1291604A (en) * | 1961-03-13 | 1962-04-27 | Materiel Pour La Rech Et L Exp | Method and device for washing parts moving in a translational or rotational movement, passing through stuffing boxes or similar assemblies and in contact with a liquid containing solid particles |
| DE2216215A1 (en) * | 1972-04-04 | 1973-10-18 | Ott Kg Lewa | DIAPHRAGM PUMP |
| JP2002195161A (en) * | 2000-12-22 | 2002-07-10 | Sakura Seisakusho:Kk | Pump structure |
| CN206860415U (en) * | 2017-03-03 | 2018-01-09 | 广州拓跃环保设备有限公司 | A kind of high pressure resistant hydraulic diaphragm metering pump |
| CN212959365U (en) * | 2020-08-05 | 2021-04-13 | 濮阳职业技术学院 | Electric control pressure relief mechanism with differential function |
| CN213450782U (en) * | 2020-10-21 | 2021-06-15 | 常州拓川泵业科技有限公司 | Aluminum alloy pneumatic diaphragm pump convenient to clean |
| CN216342617U (en) * | 2021-05-17 | 2022-04-19 | 浙江力高泵业科技有限公司 | Ultrahigh pressure metering pump adopting metal diaphragm structure |
| CN215719463U (en) * | 2021-09-30 | 2022-02-01 | 重庆水泵厂有限责任公司 | Diaphragm pump hydraulic end washing device |
| CN114941618A (en) * | 2022-06-10 | 2022-08-26 | 衡阳市金刚喜科技有限公司 | Diaphragm pump for water dispenser with impurity removal function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116816651A (en) | 2023-09-29 |
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