CN220705856U - Start-stop electromagnetic pump - Google Patents
Start-stop electromagnetic pump Download PDFInfo
- Publication number
- CN220705856U CN220705856U CN202321484689.0U CN202321484689U CN220705856U CN 220705856 U CN220705856 U CN 220705856U CN 202321484689 U CN202321484689 U CN 202321484689U CN 220705856 U CN220705856 U CN 220705856U
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- plunger
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 31
- 230000003068 static effect Effects 0.000 claims description 23
- 230000005389 magnetism Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Electromagnetic Pumps, Or The Like (AREA)
Abstract
The utility model relates to a start-stop electromagnetic pump, which comprises an electromagnetic driving assembly and a valve assembly driven by the electromagnetic driving assembly, wherein a plunger of a discharge check valve arranged in the valve assembly comprises a valve plunger and a piston, a push rod of the electromagnetic driving assembly pushes the piston in a valve hole, and the bottom of the valve plunger positioned in the valve cavity is pushed by the piston; the valve assembly comprises a plunger sleeve, a piston is arranged in a valve hole of the plunger sleeve in a sliding mode, a valve plunger is arranged in a valve cavity of the plunger sleeve in a sliding mode, the outer diameter of the piston is consistent with the aperture of the valve hole of the plunger sleeve, and the outer diameter of the valve plunger is consistent with the aperture of the valve cavity of the plunger sleeve. The utility model relates to a start and stop electromagnetic pump is through changing the design of piston main part into split type structure to very big reduction its production manufacturing degree of difficulty, reduced its cost of becoming, and split type structure assembly is more simple and convenient, very big improvement its assembly efficiency and assembly yields.
Description
Technical Field
The utility model relates to a start-stop electromagnetic pump, in particular to a start-stop electromagnetic pump based on a split plunger, and belongs to the technical field of electromagnetic valves.
Background
At present, the starting and stopping electromagnetic pump adopts a form like a Chinese patent CN201280002900.9 electromagnetic valve, and realizes the main valve function through a front opening valve and a rear opening valve, so that the structure is compact and ingenious. However, in the actual assembly process, the large head is positioned in the valve cavity to form the check valve for discharge, the small head is inserted into the valve cavity to be contacted with the push rod of the electromagnetic assembly to obtain intervention power, and the large head is uniformly and tightly matched with the valve cavity and the inner wall of the valve cavity in a sliding contact manner due to the sealing requirement, so that the requirement on the processing precision of the large head-provided piston main body 52 is extremely high, thereby increasing the manufacturing cost and being unfavorable for improving the yield.
Disclosure of Invention
The utility model aims to overcome the defects, and provides the starting electromagnetic pump which is simple to process and convenient to assemble, and the piston main body is changed into a split structure, so that the production and manufacturing difficulty and the production cost of the piston main body are greatly reduced, the split structure is simpler and more convenient to assemble, and the assembly efficiency and the assembly yield of the piston main body are greatly improved.
The purpose of the utility model is realized in the following way:
an electromagnetic pump for starting and stopping comprises an electromagnetic driving assembly and a valve assembly driven by the electromagnetic driving assembly; the plunger of the discharge check valve arranged in the valve assembly comprises a valve plunger and a piston, the push rod of the electromagnetic driving assembly pushes the piston in the valve hole, and the bottom of the valve plunger positioned in the valve cavity is pushed by the piston.
Preferably, the valve assembly comprises a plunger sleeve, the piston is arranged in a valve hole of the plunger sleeve in a sliding manner, the valve plunger is arranged in a valve cavity of the plunger sleeve in a sliding manner, the outer diameter of the piston is consistent with the aperture of the valve hole of the plunger sleeve, the outer diameter of the valve plunger is consistent with the aperture of the valve cavity of the plunger sleeve, the bottom of the valve plunger is provided with a contact part which is contacted with the piston, and the outer diameter of the contact part is smaller than the aperture of the valve hole.
Preferably, the upper static iron core and the lower static iron core of the electromagnetic driving assembly are connected through a magnetism isolating ring to form a static iron core assembly, a coil is wound on the coil frame to form a coil assembly, the coil assembly is sleeved on the static iron core assembly, the movable iron core is slidably arranged in the lower static iron core, the push rod is slidably arranged in the upper static iron core, the movable iron core is in contact with one end of the push rod, and the other end of the push rod is in contact with the piston.
Preferably, the valve plunger has an exhaust check spring and an exhaust check ball embedded therein, and the valve plunger has an exhaust valve seat embedded in an inlet thereof, the exhaust check spring pushing the exhaust check ball against the inlet of the exhaust valve seat.
Preferably, a suction check valve is further arranged in the plunger sleeve of the valve assembly, and a reset spring is arranged between the suction check valve and the discharge check valve; the suction check valve comprises a valve body fixed in a valve cavity of the plunger sleeve, a suction valve seat is arranged at a suction inlet of the valve body, a suction check spring and a suction check ball are embedded in the valve body, and the suction check spring pushes the suction check ball against the suction inlet of the suction valve seat.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model can conveniently process by separating the plunger structure into the valve plunger and the piston, is extremely convenient in assembly, and does not have the problem that the plunger with a big-end structure (the piston main body 52 in the background technology) cannot be smoothly inserted into the valve hole in the plunger sleeve due to the processing precision problem.
Drawings
Fig. 1 is a schematic diagram of a start-stop electromagnetic pump according to the present utility model.
FIG. 2 is a schematic view of the structure of the valve assembly of the present utility model.
Wherein:
an electromagnetic driving assembly 1, a valve assembly 2, a suction check valve 3, a discharge check valve 4 and a return spring 5;
the magnetic insulation device comprises an upper static iron core 1.1, a magnetism isolating ring 1.2, a lower static iron core 1.3, a coil assembly 1.4, a movable iron core 1.5, a push rod 1.6, a shell 1.7 and a plug connector 1.8;
plunger sleeve 2.1 and valve cover 2.2;
a valve body 3.1, a suction valve seat 3.2, a suction check ball 3.3, and a suction check spring 3.4;
a valve plunger 4.1, a discharge valve seat 4.2, a discharge check ball 4.3, a discharge check spring 4.4, and a piston 4.5.
Detailed Description
Referring to fig. 1, the utility model relates to a start-up electromagnetic pump, which comprises an electromagnetic driving assembly 1 and a valve assembly 2 driven by the electromagnetic driving assembly 1.
The electromagnetic driving assembly 1 comprises an upper static iron core 1.1, a magnetism isolating ring 1.2, a lower static iron core 1.3, a coil assembly 1.4, a movable iron core 1.5, a push rod 1.6 and a shell 1.7; the upper static iron core 1.1 and the lower static iron core 1.3 are connected through the magnetism isolating ring 1.2 to form a static iron core assembly, a coil is wound on a coil frame to form a coil assembly 1.4, the coil assembly 1.4 is sleeved on the static iron core assembly, the movable iron core 1.5 is arranged in the lower static iron core 1.3 in a sliding mode, the push rod 1.6 is arranged in the upper static iron core 1.1 in a sliding mode, the movable iron core 1.5 is contacted with the push rod 1.6, the shell 1.7 is wrapped outside the static iron core assembly and the coil assembly 1.4 to form a whole, and the lead-out wire of the coil assembly 1.4 passes through the shell 1.7 and then is injection molded to form the plug connector 1.8.
Referring to fig. 2, the valve assembly 2 comprises a plunger sleeve 2.1, and a suction check valve 3 and a discharge check valve 4 are arranged in a valve cavity of the plunger sleeve 2.1.
The suction check valve 3 comprises a valve body 3.1 fixed in a valve cavity of the plunger sleeve 2.1, a suction valve seat 3.2 is arranged at a suction inlet of the valve body 3.1, the suction valve seat 3.2 is clamped between the valve body 3.1 and a valve cover 2.2 of the plunger sleeve 2.1, a suction check spring 3.4 and a suction check ball 3.3 are embedded in the valve body 3.1, and the suction check spring 3.4 pushes the suction check ball 3.3 against the suction inlet of the suction valve seat 3.2.
A return spring 5 is arranged between the suction check valve 3 and the discharge check valve 4;
the plunger of the discharge check valve 4 is in a split structure of a valve plunger 4.1 and a piston 4.5, the piston 4.5 is arranged in a valve hole of the plunger sleeve 2.1 in a sliding way, and the piston 4.5 is contacted with the push rod 1.6; the valve plunger 4.1 is arranged in the valve cavity of the plunger sleeve 2.1 in a sliding way, and the return spring 5 is positioned between the valve plunger 4.1 and the valve main body 3.1; the valve plunger 4.1 is embedded with a discharge check spring 4.4 and a discharge check ball 4.3, and the inlet of the valve plunger 4.1 is embedded with a discharge valve seat 4.2, and the discharge check spring 4.4 pushes the discharge check ball 4.3 against the inlet of the discharge valve seat 4.2.
When the plunger is assembled, as the plunger is arranged into a split structure formed by the valve plunger 4.1 and the piston 4.5, during machining, the outer diameter of the piston 4.5 is ensured to be consistent with the aperture of the valve hole of the plunger sleeve 2.1, the outer diameter of the valve plunger 4.1 is ensured to be consistent with the aperture of the valve cavity of the plunger sleeve 2.1, and the diameter of the part 4.1.1 of the contact part of the bottom of the valve plunger 4.1, which is contacted with the piston 4.5, is smaller than the diameter of the piston 4.5, so that consistent matching is not required, and only the piston 4.5 can slide into the valve hole of the plunger sleeve 2.1; compared with the original integrated structure, the split structure is processed only by respectively processing the two structures, the problem of processing coaxiality is not required to be considered as in the same integrated structure, the requirement on processing precision is greatly reduced, the processing difficulty is reduced, and the manufacturing cost is reduced; and also simpler, the convenience to follow-up assembly, the efficiency and the effect of assembly are also higher, and can not appear the condition in the lower extreme can't insert the valve opening of plunger sleeve 2.1 because upper and lower both ends axiality problem like integral type structure, have improved the assembly yields.
In addition: it should be noted that the above embodiment is only one of the optimization schemes of this patent, and any modification or improvement made by those skilled in the art according to the above concepts is within the scope of this patent.
Claims (5)
1. An electromagnetic pump for starting and stopping comprises an electromagnetic driving assembly and a valve assembly driven by the electromagnetic driving assembly; the method is characterized in that: the plunger of the discharge check valve arranged in the valve assembly comprises a valve plunger and a piston, the push rod of the electromagnetic driving assembly pushes the piston in the valve hole, and the bottom of the valve plunger positioned in the valve cavity is pushed by the piston.
2. A start-up electromagnetic pump as defined in claim 1, wherein: the valve assembly comprises a plunger sleeve, a piston is arranged in a valve hole of the plunger sleeve in a sliding mode, a valve plunger is arranged in a valve cavity of the plunger sleeve in a sliding mode, the outer diameter of the piston is consistent with the aperture of the valve hole of the plunger sleeve, the outer diameter of the valve plunger is consistent with the aperture of the valve cavity of the plunger sleeve, a contact portion is arranged at the bottom of the valve plunger and contacted with the piston, and the outer diameter of the contact portion is smaller than the aperture of the valve hole.
3. A start-up electromagnetic pump as defined in claim 2, wherein: the upper static iron core and the lower static iron core of the electromagnetic driving assembly are connected through the magnetism isolating ring to form a static iron core assembly, the coil is wound on the coil rack to form a coil assembly, the coil assembly is sleeved on the static iron core assembly, the movable iron core is arranged in the lower static iron core in a sliding mode, the push rod is arranged in the upper static iron core in a sliding mode, the movable iron core is in contact with one end of the push rod, and the other end of the push rod is in contact with the piston.
4. A start-up electromagnetic pump as defined in claim 2, wherein: the valve plunger is internally embedded with a discharge check spring and a discharge check ball, and the inlet of the valve plunger is embedded with a discharge valve seat, and the discharge check spring pushes the discharge check ball against the inlet of the discharge valve seat.
5. A start-up electromagnetic pump as defined in claim 2, wherein: a suction check valve is further arranged in the plunger sleeve of the valve assembly, and a reset spring is arranged between the suction check valve and the discharge check valve; the suction check valve comprises a valve body fixed in a valve cavity of the plunger sleeve, a suction valve seat is arranged at a suction inlet of the valve body, a suction check spring and a suction check ball are embedded in the valve body, and the suction check spring pushes the suction check ball against the suction inlet of the suction valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321484689.0U CN220705856U (en) | 2023-06-12 | 2023-06-12 | Start-stop electromagnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321484689.0U CN220705856U (en) | 2023-06-12 | 2023-06-12 | Start-stop electromagnetic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220705856U true CN220705856U (en) | 2024-04-02 |
Family
ID=90450146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321484689.0U Active CN220705856U (en) | 2023-06-12 | 2023-06-12 | Start-stop electromagnetic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220705856U (en) |
-
2023
- 2023-06-12 CN CN202321484689.0U patent/CN220705856U/en active Active
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