CN2057470U - Fluid driven diaphragm pump - Google Patents
Fluid driven diaphragm pump Download PDFInfo
- Publication number
- CN2057470U CN2057470U CN 89216703 CN89216703U CN2057470U CN 2057470 U CN2057470 U CN 2057470U CN 89216703 CN89216703 CN 89216703 CN 89216703 U CN89216703 U CN 89216703U CN 2057470 U CN2057470 U CN 2057470U
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- valve
- hydraulicchange
- over valve
- chamber
- oil circuit
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Abstract
The utility model relates to a liquid operated diaphragm pump, which is used for conveying slurry materials and liquid materials and comprises a left pump body, a right pump body, a draw rod used to connect a diaphragm, a liquid operated direction changing valve, a feed tube, a discharge tube, and a hydraulic power part. The liquid operated direction changing valve is a standard three-position four-way liquid operated direction changing valve and has the advantages of simple structure and no wearing parts. The liquid operated direction changing valve is controlled by a semicircular elongated slot on the draw rod and annular slots on both sides of the elongated slot without adding a control valve, so that the utility model has the advantages of long the service life and low manufacturing cost.
Description
The utility model relates to a kind of diaphragm pump that surges, and belongs to barrier film (diaphragm) pump with fluid transmission means.
The GB1379594 patent disclosure a kind of diaphragm pump that surges, it has the left and right pump housing that barrier film separates becomes two chambeies by the centre, the pull bar that connects two barrier films, be positioned at supply pipe, the drainage conduit of the pump housing one side, the control barrier film is made forward and reverse reciprocating hydraulicchange-over valve, and the control valve and the hydraulic power of the commutation of control hydraulicchange-over valve are partly formed.Hydraulicchange-over valve is respectively to increase a unequal piston of diameter in the left and right chamber of standard 3-position 4-way hydraulicchange-over valve basically, for the sealing of piston, is provided with the O RunddichtringO separately.Because piston to-and-fro motion continually, sealing circle are easy to wearing and tearing, need often to change, and structure is also complicated.Control valve is made up of valve body, guiding valve, spacing depression bar and check valve.Be provided with guiding valve in valve body, guiding valve is provided with circular groove, and the two ends of guiding valve are connected with the barrier film pull bar with screw thread, is provided with spacing depression bar at an end of pull bar, and oil circuit is provided with check valve, its complex structure.This control barrier film is made the system of forward and reverse to-and-fro motion and the commutation of control hydraulicchange-over valve, and assembly is many, and structure is complicated, thereby the diaphragm pump that surges is short working life, the manufacture cost height.
The purpose of this utility model is to overcome above-mentioned prior art deficiency and provides a kind of long service life, the diaphragm pump that surges of low cost of manufacture.
The purpose of this utility model can reach by following technical proposals: a kind of diaphragm pump that surges is by having the left and right pump housing that barrier film separates becomes two chambeies, the pull bar that connects two barrier films, be positioned at supply pipe, the drainage conduit of the pump housing one side, forward and reverse reciprocating hydraulicchange-over valve made by the control barrier film and hydraulic power is partly formed.Its hydraulicchange-over valve is standard 3-position 4-way hydraulicchange-over valve, and is simple in structure, no easily damaged parts.Connect two barrier film pull bars and be provided with semicircle elongated slot, be provided with circular groove,, do not need to establish in addition control valve in order to the commutation of control hydraulicchange-over valve in these groove both sides.Thereby reached the diaphragm pump long service life of surging, the purpose of low cost of manufacture.
Above-mentioned hydraulicchange-over valve can be provided with passage in its valve body lower portion, make the compact overall structure of pump, and beautiful shape, and one in two passages of former valve body lower portion is stopped up with plug.
Above-mentioned hydraulicchange-over valve can be provided with a little spring in its left chamber or right chamber, make the original state of spool be in the endoceliac side of valve.
The utility model compared with prior art has following advantage: the surge hydraulicchange-over valve of diaphragm pump of GB1379594 patent is respectively to have increased a unequal piston of diameter in the left and right chamber of standard 3-position 4-way hydraulicchange-over valve basically, for the sealing of piston is provided with the O RunddichtringO separately.Because piston to-and-fro motion continually, sealing circle are easy to wearing and tearing, need often to change, and structure is complicated.Hydraulicchange-over valve of the present utility model is an employing standard 3-position 4-way hydraulicchange-over valve, does not have piston in left and right two chambeies.In order to make the pump compact overall structure, beautiful shape is provided with passage in its valve body lower portion.Adopt the sealing of O RunddichtringO between valve gap and valve body and the passage, sealing is static sealing.This valve arrangement is simple, no easily damaged parts.The commutation of above-mentioned patent control hydraulicchange-over valve is to adopt a baroque control valve, and it is made up of valve body, guiding valve, spacing depression bar and check valve.The commutation of the utility model control hydraulicchange-over valve is not to adopt baroque control valve, but takes to be provided with a semicircle elongated slot at connection two barrier film pull bars, is provided with circular groove in these groove both sides.Thereby the utility model long service life, low cost of manufacture.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the schematic representation of diaphragm pump of surging.
Fig. 2 is the sectional drawing of hydraulicchange-over valve.
Fig. 3 is the front view that connects two barrier film pull bars.
The utility model describes in detail embodiment below in conjunction with accompanying drawing:
Fig. 1 has described the parts and the relation thereof of the diaphragm pump that surges.Left side pump housing 1A is divided into chamber 3A and chamber 4A by barrier film 2A.Right pump housing 1B is divided into chamber 3B and chamber 4B by barrier film 2B.In chamber 4A and the chamber 3B is transmission liquid, the material for transmitting in chamber 3A and the chamber 4B.Barrier film 2A and 2B are connected by pull bar 5.Pull bar is provided with semicircle elongated slot 6, is provided with circular groove 7A, 7B in these groove both sides.One side of the left and right pump housing is connected with supply pipe 9, drainage conduit 10 respectively, is provided with check valve 11A, 11B, 12A, 12B on its pipeline.Hydraulicchange-over valve 8 control barrier films are done positive and negative to-and-fro motion.The semicircle elongated slot of pull bar and the commutation of the circular groove of both sides control selector valve thereof.Finish pipeline 14 to 21 fuel tanks 22, valve A and the valve B in addition of above-mentioned functions.Their power is supplied with by hydraulic power part 13.The hydraulic power part can be independent standard oil pump, also can be public oil pressure station; Can form a whole with pump, also can be away from pump.
Hydraulicchange-over valve adopts standard 3-position 4-way hydraulicchange-over valve, is provided with the passage (see figure 2) in its valve body lower portion, makes the compact overall structure of pump, and beautiful shape.In the left chamber 8A of valve or right chamber 8B, can adorn a little spring (not shown), make the original state of spool be in the endoceliac side of valve, can cancel valve A like this.The position of semicircle elongated slot of pull bar and circular groove 7A should be, when barrier film 2A and 2B are in the right-hand member terminal point, oil circuit 18 and 21 and semicircle elongated slot (shown in solid line among the figure) connect, oil circuit 18 the other ends partly are connected with hydraulic power, and oil circuit 21 the other ends are connected with hydraulicchange-over valve; Oil circuit 16A and 16B and circular groove 7A connect, and the oil circuit 16A the other end is connected with hydraulicchange-over valve, and the oil circuit 16B the other end is connected with fuel tank 22.When barrier film 2A and 2B are in the left end terminal point, oil circuit 17 and 18 and semicircle elongated slot (as shown in phantom in FIG.) connect, oil circuit 17 the other ends are connected with hydraulicchange-over valve; Oil circuit 20A and 20B and circular groove 7B(are as shown in phantom in FIG.) to connect, the other end of oil circuit 20A is connected with hydraulicchange-over valve, and the other end of oil circuit 20B is connected with fuel tank 22.Oil circuit 14 partly is connected with hydraulic power, and is connected with hydraulicchange-over valve by valve A.Oil circuit 15A partly is connected with hydraulic power, and is connected with hydraulicchange-over valve by valve B.Oil circuit 15B one end is connected with hydraulicchange-over valve, and the other end is connected with the chamber 3B of right valve barrel 1B.Oil circuit 19A one end is connected with hydraulicchange-over valve, and the other end is connected with the chamber 4A of left valve barrel 1A.Oil circuit 19B one end is connected with hydraulicchange-over valve, and the other end is connected with fuel tank 22.The particular location that above-mentioned oil circuit is connected with hydraulicchange-over valve is seen Fig. 2.
Fig. 2 has described the structure of hydraulicchange-over valve 8, and its structure is identical with standard 3-position 4-way hydraulicchange-over valve.It is made up of valve body 23, valve gap 24, double-screw bolt 25, nut 26, packing ring 27, spool 28, plug 29.Set up left passage 33, right passage 34 in valve body lower portion, right passage of former valve body lower portion or left passage stop up with plug 32, also can not set up passage 33,34.Be connected by O RunddichtringO 30,31 between valve body and the valve gap.Can adorn a little spring (not shown) at left chamber 8A or right chamber 8B.Each passage of valve body has been represented and the numbering that is connected oil circuit.
Fig. 3 has described the structure that connects barrier film pull bar 5.Be provided with semicircle elongated slot 6 on pull bar, be provided with circular groove 7A, 7B in these groove both sides, the pull bar two ends are provided with screw thread and are connected with barrier film.
Dynamic relationship of the present utility model following (referring to Fig. 1 and Fig. 2): open valve A during work, oil passes through the left chamber 8A that oil circuits 14 enter hydraulicchange-over valve 8 by hydraulic power part 13, promotes spool 28 and moves right, and this moment, spool was in right-hand member in the valve body chamber.Open valve B, oil process oil circuit 15A, hydraulicchange-over valve 8 and oil circuit 15B enter the chamber 3B of right pump housing 1B, promote barrier film 2B and move right, and the material among the 4B of chamber is discharged by drainage conduit 10 and check valve 11B thereof.When barrier film 2B moved right, barrier film pull bar 5 also moved right simultaneously, and the barrier film 2A of the left pump housing 1A that is fixed together with it also moves right simultaneously, and its chamber 3A forms negative pressure, and material enters chamber 3A through supply pipe 9 and check valve 12A thereof.When the barrier film 2B of right pump housing 1B moves right terminal point, thereupon movably the semicircle elongated slot 6(of pull bar 5 shown in Fig. 1 solid line) connect with oil circuit 18 and 21, oil enters the right chamber 8B of hydraulicchange-over valve 8 through oil circuit 18, semicircle elongated slot 6 and oil circuit 21, promotes this valve core and is moved to the left; The circular groove 7A of pull bar 5 and oil circuit 16A and 16B connect, and the oil among the left chamber 8A of hydraulicchange-over valve 8 flows back to fuel tank 22 through oil circuit 16A, circular groove 7A and oil circuit 16B.When the spool of hydraulicchange-over valve 8 is moved to the left to terminal point, spool cuts off oil circuit 15B, connect oil circuit 19A, oil enters the chamber 4A of left pump housing 1A through oil circuit 15A, hydraulicchange-over valve 8 and oil circuit 19A, promote barrier film 2A and be moved to the left, the material among the 3A of chamber is discharged through drainage conduit 10 and check valve 11A thereof.When barrier film 2A was moved to the left, the barrier film 2B by pull bar 5 right pump housing 1B also was moved to the left, and chamber 4B forms negative pressure, and material enters chamber 4B through supply pipe 9 and check valve 12B thereof.Meanwhile, the oil among the 3B of chamber flows back to fuel tank 22 through the hole and the oil circuit 19B of oil circuit 15B, hydraulicchange-over valve spool.When the barrier film 2A of left pump housing 1A is moved to the left to terminal point, the semicircle elongated slot 6(of pull bar 5 is as shown in phantom in Figure 1 movably thereupon) connect with oil circuit 17 and 18, oil enters the left chamber 8A of hydraulicchange-over valve 8 through oil circuit 18, semicircle elongated slot 6 and oil circuit 17, promotes spool and moves right; The circular groove 7B(of pull bar 5 is as shown in phantom in Figure 1) to connect with oil circuit 20A and 20B, the oil among the right chamber 8B of hydraulicchange-over valve 8 flows back to fuel tank 22 through oil circuit 20A, circular groove 7B and oil circuit 20B.When the spool of hydraulicchange-over valve 8 moves right terminal point, oil circuit 15A connects with oil circuit 15B through hydraulicchange-over valve 8, oil enters the chamber 3B of right pump housing 1B, promotes barrier film 2B and moves right, and the material among the 4B is discharged, meanwhile, the hydraulicchange-over valve spool cuts off oil circuit 19A and 15A, and pull bar 5 also moves right thereupon, and drive barrier film 2A moves right, chamber 3A forms negative pressure, and material enters.Meanwhile, the oil among the 4A of chamber flows back to fuel tank 22 through oil circuit 19A, hydraulicchange-over valve 8 and oil circuit 19B.Thereby finished an operation cycle.
Claims (3)
1, a kind of diaphragm pump that surges, by having the left pump housing 1A that barrier film separates becomes two chambeies, right pump housing 1B, the pull bar 5 that connects two barrier films, be positioned at supply pipe 9, the discharge nozzle 10 of the pump housing one side, forward and reverse reciprocating hydraulicchange-over valve 8 made by the control barrier film and hydraulic power is partly formed, it is characterized in that hydraulicchange-over valve 8 is the standard three position four-way directional control valve, the pull bar 5 that connects two barrier films is provided with a semicircle elongated slot 6, is provided with circular groove 7A and 7B in these groove both sides.
2, pump according to claim 1 is characterized in that being provided with passage 33 and 34 in the valve body lower portion of hydraulicchange-over valve 8, and in two passages of former valve body lower portion one stops up with plug 32.
3, pump according to claim 1 is characterized in that being provided with a little spring in the chamber of hydraulicchange-over valve 8 8A or chamber 8B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89216703 CN2057470U (en) | 1989-09-19 | 1989-09-19 | Fluid driven diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89216703 CN2057470U (en) | 1989-09-19 | 1989-09-19 | Fluid driven diaphragm pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2057470U true CN2057470U (en) | 1990-05-23 |
Family
ID=4872107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89216703 Withdrawn CN2057470U (en) | 1989-09-19 | 1989-09-19 | Fluid driven diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2057470U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120279A (en) * | 2019-12-30 | 2020-05-08 | 邵玉强 | Hydraulic diaphragm pump |
| CN113294314A (en) * | 2020-02-24 | 2021-08-24 | 江苏蓝慧智能装备科技有限公司 | Mechanical automatic scavenging air valve |
-
1989
- 1989-09-19 CN CN 89216703 patent/CN2057470U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120279A (en) * | 2019-12-30 | 2020-05-08 | 邵玉强 | Hydraulic diaphragm pump |
| CN113294314A (en) * | 2020-02-24 | 2021-08-24 | 江苏蓝慧智能装备科技有限公司 | Mechanical automatic scavenging air valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |