CN219953574U - High-pressure output pressure-resistant metering pump - Google Patents
High-pressure output pressure-resistant metering pump Download PDFInfo
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- CN219953574U CN219953574U CN202320834812.0U CN202320834812U CN219953574U CN 219953574 U CN219953574 U CN 219953574U CN 202320834812 U CN202320834812 U CN 202320834812U CN 219953574 U CN219953574 U CN 219953574U
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- 239000007788 liquid Substances 0.000 claims abstract description 94
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 21
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000006872 improvement Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a high-pressure output pressure-resistant metering pump, which comprises a pump chamber, a driving mechanism connected to one side of the pump chamber, a liquid inlet pipeline and a liquid outlet pipeline connected to the other side of the pump chamber, wherein a first diaphragm valve is connected to the liquid inlet pipeline, a second diaphragm valve is connected to the liquid outlet pipeline, a one-way valve is arranged at the connection position of the liquid inlet pipeline and the pump chamber, the end part of a valve core of the one-way valve faces to the liquid inlet end of the liquid inlet pipeline, so that the liquid flow channel direction of the valve core of the one-way valve flows from the inlet of the liquid inlet pipeline to the inside of the pump chamber, when the liquid pressure in the pump chamber acts on the one-way valve, the valve is tightly closed and bears high pressure, so that the internal pressure of the pump chamber can be increased during output, the high-pressure output is performed through the liquid outlet pipeline, the pressure is effectively prevented from leaking from one side of the liquid inlet pipeline, and the pressure output is more stable.
Description
Technical Field
The utility model relates to the technical field of liquid injection pumps, in particular to a pressure-resistant metering pump with high-pressure output.
Background
A check valve type plunger pump can normally bear high reverse pressure and realize high-pressure fluid output; when the one-way valve type plunger pump is used for metering and injecting liquid containing particles or liquid easy to crystallize, the sealing performance of the one-way valve is often or reduced, so that the performance of the pump is reduced; the diaphragm valve type plunger pump can better cope with liquid containing tiny particles and easy to crystallize, has very good sealing performance, can realize metering and liquid injection with better performance for more types of liquid, but has limited pressure-resistant capability, and if the liquid reaches a certain pressure, the diaphragm valve can leak and cause the performance of the metering pump to be reduced or even lose efficacy.
In the application part with the application number of 202120960111.2, a metering pump with double diaphragm valves is disclosed, two diaphragm valves are respectively installed on a liquid outlet on a pump body and a pipeline of a liquid inlet, the two diaphragm valves are sequentially opened and closed through pneumatic control, the diaphragm valve of the liquid outlet is closed during liquid inlet control, the diaphragm valve of the liquid inlet is opened and liquid inlet is completed, the diaphragm valve of the liquid outlet is closed during liquid outlet control, the diaphragm valve of the liquid outlet is opened and liquid outlet is completed, but when liquid inlet is carried out, the pump body generates negative pressure to enable liquid on one side of the liquid inlet to be sucked, when the negative pressure is increased to exceed the pressure of the diaphragm valve on one side of the liquid outlet, the liquid on one side of the liquid outlet also can be reversely sucked from the liquid outlet, and similarly, when liquid outlet is carried out, the pump body generates positive pressure to enable liquid to be extruded from one side of the liquid outlet, and when the pressure generated by the pump body exceeds the pressure of the diaphragm valve on one side of the liquid inlet side, the liquid can be caused to leak from the one side of the liquid inlet.
Disclosure of Invention
Aiming at the technical defects in the background technology, the utility model provides a high-pressure output pressure-resistant metering pump, which solves the technical problems and meets the actual demands, and the specific technical scheme is as follows:
the utility model provides a withstand voltage measuring pump of high pressure output, is in including pump chamber, connection actuating mechanism of pump chamber one side, connection be in feed liquor pipeline and the drain line of pump chamber opposite side, actuating mechanism's output connection is equipped with the piston, pump chamber orientation the terminal surface of actuating mechanism one side is equipped with the piston groove, connect on the feed liquor pipeline and be equipped with first diaphragm valve connect on the drain line and be equipped with the second diaphragm valve, the feed liquor pipeline with pump chamber hookup location is equipped with the check valve, the tip orientation of the case of check valve the feed liquor end of feed liquor pipeline.
As an improvement of the scheme, the one-way valve comprises a valve core, a spring and a first sealing ring, wherein the end part of the valve core is provided with a first flange which is annular and matched with the inner wall of the one-way valve, and the spring is arranged on the valve core in a penetrating manner.
As an improvement of the scheme, a first sealing ring is arranged around the outer edge of the first flange, one end of the spring is abutted against the rear end of the first flange, and the other end of the spring is abutted against the inner wall of the one-way valve, which is close to one end of the pump chamber.
As an improvement of the scheme, a first lug is arranged at the position, corresponding to the first diaphragm valve, in the liquid inlet pipeline, a first diaphragm is arranged at the position, corresponding to the first lug, of the first diaphragm valve, and the first diaphragm protrudes towards one direction of the lug.
As an improvement of the scheme, a second lug is arranged at the position, corresponding to the second diaphragm valve, in the liquid outlet pipeline, a second diaphragm is arranged at the position, corresponding to the second lug, of the second diaphragm valve, and the second diaphragm protrudes towards the second lug.
As an improvement of the scheme, the check valve is provided with a check valve housing, the check valve housing comprises a first housing which is in sealing connection with the pump chamber and a second housing which is connected with the front end of the first housing, and a second sealing ring is arranged at the connection position between the first housing and the second housing.
As an improvement of the scheme, a piston chamber is arranged at one end, close to the pump chamber, of the driving mechanism, the piston is fixed at the output end of the driving mechanism through a locking screw, and a third sealing ring is arranged between the piston and the inner wall of the piston chamber.
The utility model has the beneficial effects that: by arranging the one-way valve at the connection position of the liquid inlet pipeline and the pump chamber, the liquid in the liquid inlet pipeline can only flow unidirectionally towards the pump chamber and the outlet direction through the one-way valve, the internal pressure of the pump chamber can be increased when the liquid is output through the liquid outlet pipeline by matching the one-way valve with the first diaphragm valve and the second diaphragm valve, the pressure is effectively prevented from leaking from one side of the liquid inlet pipeline when the liquid is output at high pressure, the pressure output is more stable, when the piston moves backwards, the first diaphragm valve is opened, the second diaphragm valve is closed, the liquid flows to the pump chamber from the inlet through the first diaphragm valve and the one-way valve, the liquid is sucked in, when the piston moves forwards, the first diaphragm valve is closed, the second diaphragm valve is opened, the liquid flows to the outlet through the second diaphragm valve, if the output pressure is very high, the one-way valve between the first diaphragm valve and the pump chamber bears very high reverse pressure and closes the liquid inlet pipeline, and the liquid can not tightly exert the effect when the pressure is higher than the first diaphragm valve is closed.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
FIG. 2 is a schematic view of the internal structure of the pump chamber position of the present utility model.
Fig. 3 is a schematic view of the pump chamber structure of the present utility model.
Fig. 4 is a schematic view showing a first diaphragm valve closed state structure of the present utility model.
Fig. 5 is a schematic view showing the structure of the first diaphragm valve in the open state of the present utility model.
Fig. 6 is a schematic view showing a second diaphragm valve closed state structure of the present utility model.
Fig. 7 is a schematic view showing the structure of the second diaphragm valve in the open state of the present utility model.
Wherein: pump bore 1, piston groove 101, driving mechanism 2, piston 201, piston chamber 202, third seal 203, liquid inlet pipe 3, first diaphragm valve 301, first bump 302, first diaphragm 303, liquid outlet pipe 4, second diaphragm valve 401, second bump 402, second diaphragm 403, check valve 5, valve core 501, spring 502, first seal 503, first flange 504, check valve housing 6, first housing 601, second housing 602, second seal 603, outer ring 604, and bolt 605.
Detailed Description
Embodiments of the present utility model will be described below with reference to the accompanying drawings and examples, but the embodiments of the present utility model are not limited to the following examples, and the present utility model relates to the relevant essential parts in the art, and should be regarded as known and understood by those skilled in the art.
As shown in fig. 1 to 7, a high-pressure output pressure-resistant metering pump comprises a pump chamber 1, a driving mechanism 2 connected to one side of the pump chamber 1, a liquid inlet pipeline 3 connected to the other side of the pump chamber 1, and a liquid outlet pipeline 4, wherein a piston 201 is connected to the output end of the driving mechanism, a piston groove 101 is formed in the end face of the pump chamber 1, which faces towards one side of the driving mechanism 2, a first diaphragm valve 301 is connected to the liquid inlet pipeline 3, a second diaphragm valve 401 is connected to the liquid outlet pipeline 4, a one-way valve 5 is arranged at the connection position of the liquid inlet pipeline 3 and the pump chamber 1, and the end part of a valve core of the one-way valve 5 faces towards the liquid inlet end of the liquid inlet pipeline 3.
As shown in fig. 4 to 7, in the structure of the present utility model, the pump chamber 1 is connected to the liquid inlet pipe 3 and the liquid outlet pipe 4, the liquid inlet pipe 3 and the liquid outlet pipe 4 are respectively provided with a first diaphragm valve 301 and a second diaphragm valve 401, the first diaphragm valve 301 and the second diaphragm valve 401 are respectively used for controlling the opening and closing of the liquid inlet pipe 3 and the liquid outlet pipe 4, the driving mechanism 2 is connected to one side of the pump chamber 1, and the driving mechanism 2 is used for driving the piston 201 to reciprocate in the piston chamber 202 to generate positive pressure and negative pressure in a linear manner and cooperate with the first diaphragm valve 301 and the second diaphragm valve 401 to complete the working process of liquid inlet and liquid outlet.
As shown in fig. 4 and fig. 5, it should be noted that, a check valve 5 is disposed at a connection position between the liquid inlet pipe 3 and the pump chamber 1, a valve core 501 in the check valve 5 abuts against one end of the check valve 5 near the liquid inlet pipe 3 through the spring 502, and when liquid is fed, the pump chamber 1 retracts through the piston 201 to generate negative pressure, and when the negative pressure exceeds the elastic force of the spring 502, the liquid squeezes a first sealing ring 503 on the valve core 501 to be sucked into the pump chamber 1;
as shown in fig. 4 and fig. 7, when the liquid is discharged, the driving mechanism 2 pushes the piston 201 to move towards the direction of the pump chamber 1 to pressurize, the check valve 5 between the first diaphragm valve 301 and the pump chamber 1 bears high reverse pressure and closes the liquid inlet pipe 3, the sealing effect of the valve core 501 and the first sealing ring 503 may be better along with the increase of internal pressure, so that the liquid is effectively prevented from leaking from the liquid inlet pipe 3 when the liquid is discharged, and the pump chamber 1 can complete high-pressure output.
As shown in fig. 4, in the foregoing solution, further, the check valve 5 includes a valve core 501, a spring 502, and a first sealing ring 503, where an end portion of the valve core 501 is provided with a first flange 504 that is annular and is matched with an inner wall of the check valve 5, the spring 502 is threaded on the valve core 501, and the valve core 501 abuts against an end of the check valve 5, which faces the liquid inlet pipe 3, under the action of the spring, so that liquid in the liquid inlet pipe 3 can only flow unidirectionally along the liquid inlet pipe 3, which faces the pump chamber 1.
Further, in the above-mentioned scheme, a first sealing ring 503 is provided around the outer edge of the first flange 504, and one end of the spring 502 abuts against the rear end of the first flange 504, and the other end abuts against the inner wall of the one-way valve 5 near one end of the pump chamber 1, so that the sealing effect of the one-way valve 5 is enhanced.
Further, in the above-mentioned solution, a first protrusion 302 is disposed in the liquid inlet pipe 3 at a position corresponding to the first protrusion 301, a first diaphragm 303 is disposed in the first protrusion 302 of the first protrusion 301, the first diaphragm 303 protrudes toward the first protrusion 302, and the opening or closing of the liquid inlet pipe 3 is controlled by cooperation between the first protrusion 302 and the first diaphragm 303.
Further, in the above-mentioned solution, the second protrusion 402 is disposed in the liquid outlet pipe 4 at a position corresponding to the second diaphragm valve 401, and the second diaphragm 403 is disposed in the second diaphragm valve 401 at a position corresponding to the second protrusion 402, where the second diaphragm 403 protrudes toward the second protrusion 402, and the opening or closing of the liquid outlet pipe 4 is controlled by cooperation between the second protrusion 402 and the second diaphragm 403.
As shown in fig. 7, in the above solution, further, the check valve 5 is provided with a check valve housing 6, the check valve housing 6 includes a first housing 601 sealingly connected to the pump chamber 1 and a second housing connected to the front end of the first housing 601, a second sealing ring 603 is disposed at a connection position between the first housing 601 and the second housing, an outer ring 604 is disposed on an outer edge of the first housing 601, the outer ring 604 is sleeved on the first housing 601, and a bolt 605 is provided to fix the ring 604 on the pump chamber 1.
Further, in the above-mentioned scheme, the end of the driving mechanism 2 near the pump chamber 1 is provided with a piston chamber 202, the piston 201 is fixed at the output end of the driving mechanism 2 by a locking screw, and a third sealing ring 203 is provided between the piston 201 and the inner wall of the piston chamber 202, so as to enhance the sealing effect of the piston chamber 202.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (7)
1. The utility model provides a withstand voltage measuring pump of high pressure output, its characterized in that, is in including pump chamber (1), connection actuating mechanism (2) of pump chamber (1) one side, connection be in feed liquor pipeline (3) and play liquid pipeline (4) of pump chamber (1) opposite side, actuating mechanism's output connection is equipped with piston (201), pump chamber (1) orientation the terminal surface of actuating mechanism (2) one side is equipped with piston groove (101), connect on feed liquor pipeline (3) and be equipped with first diaphragm valve (301) go out connect on liquid pipeline (4) and be equipped with second diaphragm valve (401), feed liquor pipeline (3) with pump chamber (1) hookup location is equipped with check valve (5), the tip of the case of check valve (5) is towards the feed liquor end of feed liquor pipeline (3).
2. The high-pressure output pressure-resistant metering pump according to claim 1, wherein the one-way valve (5) comprises a valve core (501), a spring (502) and a first sealing ring (503), a first protruding edge (504) which is circular and is matched with the inner wall of the one-way valve (5) is arranged at the end part of the valve core (501), and the spring (502) is arranged on the valve core (501) in a penetrating manner.
3. The high-pressure output pressure-resistant metering pump according to claim 2, wherein a first sealing ring (503) is arranged around the outer edge of the first flange (504), one end of the spring (502) is abutted against the rear end of the first flange (504), and the other end is abutted against the inner wall of the one-way valve (5) close to one end of the pump chamber (1).
4. The high-pressure output pressure-resistant metering pump according to claim 1, wherein a first bump (302) is arranged in the liquid inlet pipeline (3) at a position corresponding to the first bump (301), a first diaphragm (303) is arranged at a position corresponding to the first bump (302) in the first bump (301), and the first diaphragm (303) protrudes towards the first bump (302).
5. The pressure-resistant metering pump with high pressure output according to claim 1, wherein a second bump (402) is arranged in the liquid outlet pipeline (4) at a position corresponding to the second bump valve (401), a second bump (403) is arranged at a position corresponding to the second bump valve (401), and the second bump (403) protrudes towards the second bump valve (402).
6. Pressure-resistant metering pump with high pressure output according to claim 1, characterized in that the one-way valve (5) is provided with a one-way valve housing (6), the one-way valve housing (6) comprises a first housing (601) in sealing connection with the pump chamber (1) and a second housing connected to the front end of the first housing (601), and a second sealing ring (603) is arranged at the connection position between the first housing (601) and the second housing.
7. The high-pressure output pressure-resistant metering pump according to claim 1, wherein a piston chamber (202) is arranged at one end of the driving mechanism (2) close to the pump chamber (1), the piston (201) is fixed at the output end of the driving mechanism (2) through a locking screw, and a third sealing ring (203) is arranged between the piston (201) and the inner wall of the piston chamber (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320834812.0U CN219953574U (en) | 2023-04-14 | 2023-04-14 | High-pressure output pressure-resistant metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320834812.0U CN219953574U (en) | 2023-04-14 | 2023-04-14 | High-pressure output pressure-resistant metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219953574U true CN219953574U (en) | 2023-11-03 |
Family
ID=88552096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320834812.0U Active CN219953574U (en) | 2023-04-14 | 2023-04-14 | High-pressure output pressure-resistant metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219953574U (en) |
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2023
- 2023-04-14 CN CN202320834812.0U patent/CN219953574U/en active Active
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