CN210949008U - Hydraulically-driven metering pump - Google Patents
Hydraulically-driven metering pump Download PDFInfo
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- CN210949008U CN210949008U CN201920727595.9U CN201920727595U CN210949008U CN 210949008 U CN210949008 U CN 210949008U CN 201920727595 U CN201920727595 U CN 201920727595U CN 210949008 U CN210949008 U CN 210949008U
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- detection switch
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Abstract
The utility model provides a hydraulic drive's measuring pump, which comprises a pump body, the upper end of the pump body is equipped with conduction liquid inlet and conduction liquid outlet, conduction liquid inlet is equipped with the hydraulic pump, conduction liquid outlet is equipped with the solenoid valve, pump body lower extreme is equipped with the feed inlet, be equipped with the discharge gate on the lateral wall of the pump body, the feed inlet with pump body intercommunication position is equipped with the feeding check valve, the discharge gate with pump body intercommunication position is equipped with ejection of compact check valve, the inside plunger that is equipped with of cavity, the plunger with be equipped with the spring between the feeding check valve. The utility model provides a hydraulic drive's measuring pump simple structure has simplified the design of measuring pump, and the machining precision requirement also properly obtains reducing, does benefit to the popularization.
Description
Technical Field
The utility model relates to a measuring pump technical field specifically is a hydraulic drive's measuring pump.
Background
The pump belongs to a fluid machine and is an important component of the process industry flow. In many industrial processes, raw materials, semi-finished products and products are mostly liquids, and in order to ensure continuous pipeline production, a pump is used as an energy supply device for product production and a conveying device for material circulation to pressurize and convey the liquids. In addition, the process parameters such as temperature and pressure are often changed according to the adjustment of the flow rate in the pipeline production, and if no adjusting valve is additionally arranged, the pump also has the function of controlling the flow rate. In order to meet the two requirements of flow control and conveying, a metering pump is generally adopted.
At present, metering pumps mostly adopt plunger type, and the existing plunger type plunger pumps generally work in modes of electric, pneumatic and the like, have complex structures and higher requirements on processing precision, so the cost is higher.
SUMMERY OF THE UTILITY MODEL
To the problem pointed out in the background art, the utility model provides a simple structure, hydraulic drive's measuring pump.
The technical scheme of the utility model is realized like this:
a hydraulically driven metering pump, includes the pump body, its characterized in that: the utility model discloses a pump body, including the pump body, the upper end of the pump body is equipped with conduction liquid inlet and conduction liquid outlet, pump body lower extreme is equipped with the feed inlet, be equipped with the discharge gate on the lateral wall of the pump body, the inside cavity that is equipped with of the pump body, feed inlet, discharge gate with the cavity intercommunication sets up, the feed inlet with cavity intercommunication position is equipped with the feeding check valve, the discharge gate with cavity intercommunication position is equipped with ejection of compact check valve, the inside plunger that is equipped with of cavity, plunger sliding connection in the cavity.
The utility model discloses further set up to: the liquid inlet of the conducting liquid is provided with a hydraulic pump, and the liquid outlet of the conducting liquid is provided with an electromagnetic valve.
The utility model discloses further set up to: the plunger is internally provided with a magnet, the side wall of the pump body is provided with a limit detection switch, and the limit detection switch is electrically connected with the hydraulic pump and the electromagnetic valve.
The utility model discloses further set up to: the side wall of the pump body is provided with a detection plate, the limit detection switch comprises an upper limit detection switch and a lower limit detection switch, and the upper limit detection switch and the lower limit detection switch are fixed on the detection plate.
The utility model discloses further set up to: the plunger piston and be equipped with the spring between the feed check valve, be equipped with the fixed slot of screw thread form on the lateral wall of plunger piston, the upper end of spring is installed in the fixed slot, the lower extreme of spring cup joints the feed check valve outside.
The utility model discloses further set up to: a limiting block is further arranged in the cavity and is located at the top end of the cavity.
To sum up, the beneficial effects of the utility model are that: a pair of hydraulic drive's measuring pump, its simple structure promotes plunger work through hydraulic pressure, has simplified the design of measuring pump, and the machining precision requirement also suitably obtains reducing, does benefit to the popularization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
Reference numerals: 1. a pump body; 101. a cavity; 102. a limiting block; 2. a conducting liquid inlet; 3. a conducting liquid outlet; 4. a hydraulic pump; 5. an electromagnetic valve; 6. a feed inlet; 7. a discharge port; 8. a feed check valve; 9. a discharge one-way valve; 10. a plunger; 11. a spring; 12. a magnet; 13. an upper limit detection switch; 14. a lower limit detection switch; 15. and (6) detecting the board.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The present invention is explained below with reference to fig. 1:
the utility model provides a hydraulic drive's measuring pump, which comprises a pump body 1, 1 inside cavity 101 that is equipped with of the pump body, the upper end of the pump body 1 is equipped with conduction liquid inlet 2 and conduction liquid outlet 3, conduction liquid inlet 2 and conduction liquid outlet 3 have cavity 101 intercommunication, be equipped with stopper 102 in the cavity 101, stopper 102 sets up and lies in between conduction liquid inlet 2 and the conduction liquid outlet 3 with the top pump body 1 lateral wall an organic whole of cavity 101, conduction liquid inlet 2 is equipped with hydraulic pump 4, conduction liquid outlet 3 is equipped with solenoid valve 5, hydraulic pump 4 and solenoid valve 5 are equipped with the controller, controller and hydraulic pump 4, the 5 electricity of solenoid valve is connected.
1 lower extreme of the pump body is equipped with feed inlet 6, be equipped with discharge gate 7 on the lateral wall of the pump body 1, feed inlet 6, discharge gate 7 and cavity 101 intercommunication set up, feed inlet 6 is equipped with feeding check valve 8 with cavity 101 intercommunication position, discharge gate 7 is equipped with ejection of compact check valve 9 with cavity 101 intercommunication position, the inside plunger 10 that is equipped with of cavity 101, plunger 10 sliding connection is in cavity 101, be equipped with spring 11 between plunger 10 and the feeding check valve 8, be equipped with the fixed slot (not marked in the figure) of screw thread form on plunger 10's the lateral wall, install in the fixed slot spring 11's upper end, spring 11's lower extreme cup joints in the 8 outsides of.
The plunger 10 is internally provided with a magnet 12, the side wall of the pump body 1 is provided with a limit detection switch and a detection plate 15, and the limit detection switch is electrically connected with the hydraulic pump 4 and the electromagnetic valve 5. The limit detection switch comprises an upper limit detection switch 13 and a lower limit detection switch 14, and the upper limit detection switch 13 and the lower limit detection switch 14 are respectively fixed at the upper end and the lower end of a detection plate 15.
The controller controls the hydraulic pump 4 to operate, the conduction liquid is pressurized and pressed into the cavity 101 of the pump body 1 through the conduction liquid inlet 2, at the moment, the electromagnetic valve 5 positioned at the conduction liquid outlet 3 is closed, the hydraulic pressure in the cavity 101 positioned above the plunger 10 rises, the plunger 10 is pushed to move downwards, the feeding one-way valve 8 is closed, the liquid to be detected flows out of the pump body 1 through the discharging one-way valve 9 and the discharging port 7, when the lower limit detection switch 14 detects that the magnet 12 positioned in the plunger 10 passes through, the controller controls the hydraulic pump 4 to be closed and the electromagnetic valve 5 to be opened, the conduction liquid in the cavity 101 above the plunger 10 flows out of the pump body 1 through the electromagnetic valve 5, the pressure in the cavity 101 above the plunger 10 is reduced, the plunger 10 moves upwards under the thrust action of the spring 11 to extrude the conduction liquid out of the pump body 1, so that a pressure difference is formed between the cavity, when the upper limit detection switch 13 detects that the magnet 12 in the plunger 10 passes through, the controller controls the hydraulic pump 4 to be opened and the electromagnetic valve 5 to be closed, and the next working stroke is prepared.
The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A hydraulically driven metering pump, comprising a pump body (1), characterized in that: the upper end of the pump body (1) is equipped with conduction liquid inlet (2) and conduction liquid outlet (3), the pump body (1) lower extreme is equipped with feed inlet (6), be equipped with discharge gate (7) on the lateral wall of the pump body (1), the inside cavity (101) that is equipped with of the pump body (1), feed inlet (6), discharge gate (7) with cavity (101) intercommunication sets up, feed inlet (6) with cavity (101) intercommunication position is equipped with feeding check valve (8), discharge gate (7) with cavity (101) intercommunication position is equipped with ejection of compact check valve (9), cavity (101) inside is equipped with plunger (10), plunger (10) sliding connection in cavity (101).
2. A hydraulically driven metering pump according to claim 1, characterized in that: the conduction liquid inlet (2) is provided with a hydraulic pump (4), and the conduction liquid outlet (3) is provided with an electromagnetic valve (5).
3. A hydraulically driven metering pump according to claim 2, characterized in that: the plunger (10) is internally provided with a magnet (12), the side wall of the pump body (1) is provided with a limit detection switch, and the limit detection switch is electrically connected with the hydraulic pump (4) and the electromagnetic valve (5).
4. A hydraulically driven metering pump according to claim 3, characterized in that: the pump is characterized in that a detection plate (15) is arranged on the side wall of the pump body (1), the limit detection switch comprises an upper limit detection switch (13) and a lower limit detection switch (14), and the upper limit detection switch (13) and the lower limit detection switch (14) are fixed on the detection plate (15).
5. A hydraulically driven metering pump according to claim 1, characterized in that: a spring (11) is arranged between the plunger (10) and the feeding one-way valve (8), a thread-shaped fixing groove is formed in the side wall of the plunger (10), the upper end of the spring (11) is installed in the fixing groove, and the lower end of the spring (11) is sleeved on the outer side of the feeding one-way valve (8).
6. A hydraulically driven metering pump according to claim 1, characterized in that: a limiting block (102) is further arranged in the cavity (101), and the limiting block (102) is located at the top end of the cavity (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920727595.9U CN210949008U (en) | 2019-05-21 | 2019-05-21 | Hydraulically-driven metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920727595.9U CN210949008U (en) | 2019-05-21 | 2019-05-21 | Hydraulically-driven metering pump |
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| Publication Number | Publication Date |
|---|---|
| CN210949008U true CN210949008U (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920727595.9U Active CN210949008U (en) | 2019-05-21 | 2019-05-21 | Hydraulically-driven metering pump |
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| CN (1) | CN210949008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175422A (en) * | 2021-05-06 | 2021-07-27 | 上海雅燊电子技术有限公司 | Novel hydraulic metering pump and measuring method thereof |
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2019
- 2019-05-21 CN CN201920727595.9U patent/CN210949008U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175422A (en) * | 2021-05-06 | 2021-07-27 | 上海雅燊电子技术有限公司 | Novel hydraulic metering pump and measuring method thereof |
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