CN103244373B - A kind of diaphragm piston combined pump - Google Patents
A kind of diaphragm piston combined pump Download PDFInfo
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- CN103244373B CN103244373B CN201310156381.8A CN201310156381A CN103244373B CN 103244373 B CN103244373 B CN 103244373B CN 201310156381 A CN201310156381 A CN 201310156381A CN 103244373 B CN103244373 B CN 103244373B
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Abstract
The invention discloses a kind of diaphragm piston combined pump, comprise the pump casing containing inner chamber, eccentric shaft, this eccentric shaft be provided with ball bearing in appearance, on the outer surface of described ball bearing, circumference is connected with two or more joint shaft bearings, the middle and upper part of described joint shaft bearing is socketed with diaphragm and piston from the bottom up successively, described joint shaft bearing drives diaphragm and piston to move up or down simultaneously, the present invention by being provided with diaphragm and piston from the bottom up inside the inner chamber of pump casing, the compression of main dependence piston, very large pressure can be exported, and it is very little to be arranged on the pressure that the diaphragm below piston bears, be not easy to damage, diaphragm can also play the effect of sealing simultaneously, solve the shortcoming of the easy seepage of existing reciprocating pump, thus meet the usage requirement of people, the present invention simultaneously is also provided with pressure relief device, ensure diaphragm can not because pump internal pressure is excessive crack damage.
Description
Technical field
The present invention relates to a kind of pump, particularly a kind of combined pump simultaneously containing barrier film and piston.
Background technique
As everyone knows, pump conventional on the market at present has two kinds, and one is diaphragm pump, common diaphragm pump due to its barrier film must high resilience, thus make it pump pressure being subject to serious restriction, if it is excessive to pump pressure, barrier film can be made very easily damaged; Another is reciprocating pump, existing reciprocating pump, and it is large to pump pressure, but because it is intrinsic, during work, very easily make piston-cylinder occur wearing and tearing, thus make this pump occur Seepage, all there is some defect in two kinds of therefore above-mentioned pumps, can not meet the usage requirement of people well.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of structure simple, it is large not only to pump pressure, but also can not the combined pump of seepage.
The present invention is the technological scheme that its technical problem of solution adopts:
A kind of diaphragm piston combined pump, comprise the pump casing containing inner chamber, described pump casing is provided with suction port and exhaust port, the middle position of the inner chamber bottom of described pump casing is provided with the eccentric shaft that can bob and weave, this eccentric shaft be provided with ball bearing in appearance, on the outer surface of described ball bearing, circumference is connected with two or more joint shaft bearings, the middle and upper part of described joint shaft bearing is socketed with diaphragm and piston from the bottom up successively, the internal chamber wall of this diaphragm and pump casing is tightly connected, described joint shaft bearing drives diaphragm and piston to move up or down simultaneously, the top of described piston is provided with the wear resisting cylinder jacket that piston can be allowed to move up and down within it, described wear resisting cylinder jacket offers inlet hole and tap hole respectively, described inlet hole and tap hole are respectively arranged with the one-way membrane A that can only enter and the one-way membrane B that can only discharge, described inlet hole is connected with exhaust port with suction port respectively with tap hole.
In order to make the output of combined pump more stable, the quantity of described joint shaft bearing is three, and these three joint shaft bearings are evenly distributed on the outside of ball bearing.
In order to make the topology layout of combined pump more succinct, described tap hole is arranged on the neutral position of wear resisting cylinder jacket, and described inlet hole is around the outside being arranged on tap hole.
In order to make combined pump continuously export, the quantity of described inlet hole and tap hole is three, and described three inlet holes are evenly distributed on the outside of tap hole.
The conveniently processing of combined pump and installation, described pump casing comprises pump upper casing and shell lower casing.
In order to prevent diaphragm crack damage further, the passage that described tap hole is connected with exhaust port is provided with the pressure relief device for shunting pressure release.
In the present invention, described pressure relief device comprises the through hole be arranged on passage, and described through hole is connected with for the sealant beads by its shutoff, and the side of described sealant beads is connected with spring, and the other end of described spring is connected with look nut.
The invention has the beneficial effects as follows: because the present invention by being provided with diaphragm and piston from the bottom up inside the inner chamber of pump casing, the compression of main dependence piston, very large pressure can be exported, and it is very little to be arranged on the pressure that the diaphragm below piston bears, be not easy to damage, diaphragm can also play the effect of sealing simultaneously, solves the shortcoming of the easy seepage of existing reciprocating pump, thus meets the usage requirement of people; Pump casing is made up of pump upper casing and pump lower casing in addition, facilitates processing and the installation of combined pump; The present invention simultaneously is also provided with the pressure relief device of shunting pressure release, when the pressure of pump inner fluid soon reach diaphragm bear the limit time, pressure relief device can open shunting pressure release, ensure diaphragm can not because pump internal pressure is excessive crack damage, effectively extend the working life of combined pump.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is internal structure schematic diagram of the present invention;
Fig. 2 is the internal structure schematic diagram of another angle of the present invention.
Embodiment
See figures.1.and.2, a kind of diaphragm piston combined pump, comprise the pump casing 1 containing inner chamber, as the preferred embodiment of the invention, described pump casing 1 comprises pump upper casing 11 and shell lower casing 12, facilitate the processing of pump casing 1 and the installation of combined pump, this pump casing 1 is provided with suction port and exhaust port, described suction port and exhaust port facilitate combined pump to be connected with extraneous conveyance conduit, the middle position of the inner chamber bottom of described pump casing 1 is provided with the eccentric shaft 2 that can bob and weave, described eccentric shaft 2 is by its rotation of driven by motor in the external world, eccentric shaft 2 is in the process of rotating, can swing repeatedly up and down, this eccentric shaft 2 be provided with ball bearing 20 in appearance, on the outer surface of described ball bearing 20, circumference is connected with two or more joint shaft bearings 3, this joint shaft bearing 3 can eliminate swinging of eccentric shaft 2, only can move up and down, therefore, during work, eccentric shaft 2 driving joint bearing 3 constantly pumps, the middle and upper part of described joint shaft bearing 3 is socketed with diaphragm 4 and piston 5 from the bottom up successively, this diaphragm 4 is not only tightly connected with the internal chamber wall of pump casing 1, diaphragm 4 is also tightly connected with joint shaft bearing 3 simultaneously, described joint shaft bearing 3 drives diaphragm 4 and piston 5 to move up or down simultaneously, the top of described piston 5 is provided with the wear resisting cylinder jacket 6 that piston 5 can be allowed to move up and down within it, described wear resisting cylinder jacket 6 offers respectively inlet hole 61 and tap hole 62, described inlet hole 61 and tap hole 62 are respectively arranged with the one-way membrane A71 that can only enter and the one-way membrane B72 that can only discharge, described inlet hole 61 is connected with exhaust port 10 with suction port respectively with tap hole 62, during installation, the peripheral edge of diaphragm 4 is pressed on pump lower casing 12 by above-mentioned wear resisting cylinder jacket 6, thus diaphragm 4 is tightly connected with the internal chamber wall of pump casing 1.
Further, the quantity of described joint shaft bearing 3 is preferably three, these three joint shaft bearings 3 are evenly distributed on the outside of ball bearing 20, the middle and upper part of described three joint shaft bearings 3 is socketed with diaphragm 4 and piston 5 from the bottom up respectively, certainly, the number of above-mentioned joint shaft bearing 3 can also be set to other quantity.
Further again, the quantity of described inlet hole 61 and tap hole 62 is all preferentially set to three, described three tap holes 62 are arranged on the neutral position of wear resisting cylinder jacket 6, described three inlet holes 61 are evenly distributed on the outside of three tap holes 62, certainly, above-mentioned inlet hole 61 and the quantity of tap hole 62 can also be set to other numbers.
Further, the passage that described tap hole 62 is connected with exhaust port 10 is provided with the pressure relief device 8 for shunting pressure release, here as preferred embodiment, described pressure relief device 8 comprises the through hole 80 be arranged on passage, described through hole 80 is connected with for the sealant beads 82 by its shutoff, in order to make the sealability of sealant beads 82 better, seal ring 81 is provided with between sealing pearl 82 and through hole 80, the side of described sealant beads 82 is connected with spring 83, the other end of described spring 83 is connected with look nut 84, the neutral position of this look nut 84 offers the relief hole 85 for draining shunting, people can change the deformation quantity of spring 83 by turning above-mentioned look nut 84, thus the pressure that the fluid in change combined pump is required when washing sealant beads 82 open, when the pipeline blocking be connected with exhaust port 10, order cannot be discharged smoothly to the fluid in combined pump, the hydrodynamic pressure in combined pump is caused constantly to rise, when hydrodynamic pressure exceedes the pressure that spring 83 is applied in sealant beads 82, sealant beads 82 is backed down by fluid, and flow out from relief hole 85, thus play the effect of shunting pressure release, effectively prevent the excessive and crack damage of pressure that diaphragm 4 bears, the concrete structure of above-mentioned pressure relief device 8 can also be comprise the through hole be opened on passage, this through hole straight up and extend outside combined pump, the upper end portion of described through hole is provided with balancing weight, by balancing weight by through hole shutoff, when the hydrodynamic pressure in combined pump is greater than the gravity of balancing weight, fluid is by coordinating block upwards jack-up, therefore fluid can flow out from through hole, play the effect of shunting pressure release, so the present invention can regulate the maximum pressure in combined pump by the balancing weight of employing different quality, when pump internal pressure reaches setting pressure, pressure relief device 8 is opened and is carried out shunting pressure release, excessive and the crack damage of the pressure preventing diaphragm 4 from bearing, if when the hydrodynamic pressure in combined pump does not reach predetermined pressure, pressure relief device 8 is in closed condition.
When combined pump of the present invention normally uses, eccentric shaft 2 is under the driving effect of motor, constantly bob and weave, now, eccentric shaft 2 can drive joint shaft bearing 3 to move, joint shaft bearing 3 eliminates swinging of eccentric shaft 2, only retain upper and lower to-and-fro motion, therefore, joint shaft bearing 3 drives the while of the diaphragm 4 and piston 5 that are socketed thereon and moves up or down, piston 5 matches with wear resisting cylinder jacket 6 and acts on, object is sucked from inlet hole 61, and then object is discharged from tap hole 62, because piston 5 is arranged on above diaphragm 4, therefore, piston 5 bears the pressure of the overwhelming majority, therefore when combined pump exports larger pressure, diaphragm 4 also can not crack damage, simultaneously, because diaphragm 4 is pressed on pump lower casing 12 by wear resisting cylinder jacket 6, diaphragm 4 is tightly connected with the internal chamber wall of pump casing 1, when wear resisting cylinder jacket 6 weares and teares, when causing occurring seepage between piston 5 and wear resisting cylinder jacket 6, diaphragm 4 also can prevent combined pump from occurring seepage, ensure that the normal use of combined pump, in addition, pump casing 1 is made up of pump upper casing 11 and pump lower casing 12, be convenient for people to the part of dismounting and change combined pump inside.
The foregoing is only preferred embodiments of the present invention, as long as the technological scheme realizing the object of the invention with basic same approach all belongs within protection scope of the present invention.
Claims (7)
1. a diaphragm piston combined pump, comprise the pump casing (1) containing inner chamber, (1) is provided with suction port and exhaust port to described pump casing, it is characterized in that: the middle position of the inner chamber bottom of described pump casing (1) is provided with the eccentric shaft (2) that can bob and weave, this eccentric shaft (2) be provided with ball bearing (20) in appearance, on the outer surface of described ball bearing (20), circumference is connected with two or more joint shaft bearings (3), the middle and upper part of described joint shaft bearing (3) is socketed with diaphragm (4) and piston (5) from the bottom up successively, this diaphragm (4) is tightly connected with the internal chamber wall of pump casing (1), described joint shaft bearing (3) drives diaphragm (4) and piston (5) to move up or down simultaneously, the top of described piston (5) is provided with the wear resisting cylinder jacket (6) that piston (5) can be allowed to move up and down within it, described wear resisting cylinder jacket (6) offers respectively inlet hole (61) and tap hole (62), described inlet hole (61) and tap hole (62) are respectively arranged with the one-way membrane A(71 that can only enter) and the one-way membrane B(72 that can only discharge), described inlet hole (61) is connected with exhaust port (10) with suction port respectively with tap hole (62), the outer periphery of described piston (5) contact with the inner wall sealing of described wear resisting cylinder jacket (6).
2. a kind of diaphragm piston combined pump according to claim 1, is characterized in that: the quantity of described joint shaft bearing (3) is three, and these three joint shaft bearings (3) are evenly distributed on the outside of ball bearing (20).
3. a kind of diaphragm piston combined pump according to claim 1, it is characterized in that: described tap hole (62) is arranged on the neutral position of wear resisting cylinder jacket (6), described inlet hole (61) is around the outside being arranged on tap hole (62).
4. a kind of diaphragm piston combined pump according to claim 3, is characterized in that: the quantity of described inlet hole (61) and tap hole (62) is three, described three inlet holes (61) are evenly distributed on the outside of tap hole (62).
5. a kind of diaphragm piston combined pump according to claim 1, is characterized in that: described pump casing (1) comprises pump upper casing (11) and shell lower casing (12).
6. a kind of diaphragm piston combined pump according to claim 1, is characterized in that: the passage that described tap hole (62) is connected with exhaust port (10) is provided with the pressure relief device (8) for shunting pressure release.
7. a kind of diaphragm piston combined pump according to claim 6, it is characterized in that: described pressure relief device (8) comprises the through hole (80) be arranged on passage, described through hole (80) is connected with for the sealant beads (82) by its shutoff, the side of described sealant beads (82) is connected with spring (83), and the other end of described spring (83) is connected with look nut (84).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310156381.8A CN103244373B (en) | 2013-04-28 | 2013-04-28 | A kind of diaphragm piston combined pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310156381.8A CN103244373B (en) | 2013-04-28 | 2013-04-28 | A kind of diaphragm piston combined pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244373A CN103244373A (en) | 2013-08-14 |
| CN103244373B true CN103244373B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310156381.8A Active CN103244373B (en) | 2013-04-28 | 2013-04-28 | A kind of diaphragm piston combined pump |
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| CN (1) | CN103244373B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150147202A1 (en) * | 2013-11-27 | 2015-05-28 | Gardner Denver Thomas, Inc. | Pump having interchangeable heads |
| CN108590996B (en) * | 2018-04-13 | 2020-03-27 | 台州动林汽车空调压缩机有限公司 | Air-conditioning compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3422840A (en) * | 1966-01-17 | 1969-01-21 | Grove Valve & Regulator Co | Relief valve with resilient seal means |
| US4153391A (en) * | 1975-05-29 | 1979-05-08 | Carr-Griff, Inc. | Triple discharge pump |
| US4507058A (en) * | 1983-12-20 | 1985-03-26 | Carr-Griff, Inc. | Wobble plate pump and drive mechanism therefor |
| US6299414B1 (en) * | 1999-11-15 | 2001-10-09 | Aquatec Water Systems, Inc. | Five chamber wobble plate pump |
| CN101050763A (en) * | 2006-04-03 | 2007-10-10 | 徐兆火 | Diaphragm pump of constant pressure type |
| CN203201768U (en) * | 2013-04-28 | 2013-09-18 | 刘子良 | Composite pump with diaphragm and piston |
-
2013
- 2013-04-28 CN CN201310156381.8A patent/CN103244373B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3422840A (en) * | 1966-01-17 | 1969-01-21 | Grove Valve & Regulator Co | Relief valve with resilient seal means |
| US4153391A (en) * | 1975-05-29 | 1979-05-08 | Carr-Griff, Inc. | Triple discharge pump |
| US4507058A (en) * | 1983-12-20 | 1985-03-26 | Carr-Griff, Inc. | Wobble plate pump and drive mechanism therefor |
| US6299414B1 (en) * | 1999-11-15 | 2001-10-09 | Aquatec Water Systems, Inc. | Five chamber wobble plate pump |
| CN101050763A (en) * | 2006-04-03 | 2007-10-10 | 徐兆火 | Diaphragm pump of constant pressure type |
| CN203201768U (en) * | 2013-04-28 | 2013-09-18 | 刘子良 | Composite pump with diaphragm and piston |
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| Publication number | Publication date |
|---|---|
| CN103244373A (en) | 2013-08-14 |
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