CN212928940U - Accurate flow control structure of solenoid valve - Google Patents
Accurate flow control structure of solenoid valve Download PDFInfo
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- CN212928940U CN212928940U CN202020800087.1U CN202020800087U CN212928940U CN 212928940 U CN212928940 U CN 212928940U CN 202020800087 U CN202020800087 U CN 202020800087U CN 212928940 U CN212928940 U CN 212928940U
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- boss
- magnetic core
- blocking wall
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- annular blocking
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Abstract
The utility model relates to an electromagnetic valve precision flow control structure, which comprises an electromagnetic coil, an elastic part, a magnetic core and a valve core; the magnetic core is positioned above the valve core, the electromagnetic coil generates upward suction to the magnetic core, and the elastic piece generates downward elastic force to the magnetic core; the upper surface of the valve core is provided with an annular blocking wall and a plurality of bosses, the annular blocking wall is provided with a plurality of flow guide openings, the bosses are positioned on the inner ring of the annular blocking wall, a flow passage is formed between each boss and the annular blocking wall, and the flow passage is communicated with the flow guide openings; the boss is provided with a flow passage hole which is communicated up and down, the upper surface of the boss is also provided with a diversion trench, and the flow passage hole is communicated with the flow passage through the diversion trench; the structure of case has been optimized to this scheme, has set up the water conservancy diversion structure on the case, and the magnetic core is before opening, and the water conservancy diversion structure guides the fluid, makes the fluid flow according to set direction, has balanced the fluid pressure around the case, makes the magnetic core can steadily open, can not produce the incline, has guaranteed the stability of solenoid valve work.
Description
Technical Field
The utility model relates to an accurate flow control structure of solenoid valve.
Background
The electromagnetic valve is a main part for controlling the flow of fluid, generally, the electromagnetic valve attracts a magnetic core through an electromagnetic coil, and the flow is controlled through the opening degree of the magnetic core, and because the valve core is air intake all around, sometimes, the air pressure all around is not uniform, so that the magnetic core may generate certain deflection at the moment of opening, and the working stability of the electromagnetic valve is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a solenoid valve precision flow control structure for overcoming the deficiency of the prior art.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a precise flow control structure of an electromagnetic valve comprises an electromagnetic coil, an elastic piece, a magnetic core and a valve core; the magnetic core is positioned above the valve core, the electromagnetic coil generates upward suction to the magnetic core, and the elastic piece generates downward elastic force to the magnetic core; the upper surface of the valve core is provided with an annular retaining wall and a boss, the annular retaining wall is provided with a plurality of flow guide openings, the boss is positioned on the inner ring of the annular retaining wall, a flow passage is formed between the boss and the annular retaining wall, and the flow passage is communicated with the flow guide openings; the boss is provided with a vertically through flow channel hole, the upper surface of the boss is also provided with a diversion trench, and the flow channel hole is communicated with the flow channel through the diversion trench.
Preferably, the annular blocking wall and the boss are integrated with the valve core and formed by machining on the upper surface of the valve core, and the annular blocking wall is flush with the top surface of the boss.
Preferably, the upper surface of the valve core is provided with a plurality of bosses, each boss is provided with a flow passage hole, a plurality of flow guide openings and a plurality of bosses are uniformly arranged around the axis of the valve core, and the number of the flow guide openings is equal to that of the bosses.
Preferably, the diversion trench points to the middle of two adjacent diversion openings.
Preferably, the boss is of a fan-shaped structure with an outward arc surface, and the diversion trench leads to the arc surface side of the boss.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
the structure of case has been optimized to this scheme, has set up the water conservancy diversion structure on the case, and the magnetic core is before opening, and the water conservancy diversion structure guides the fluid, makes the fluid flow according to set direction, has balanced the fluid pressure around the case, makes the magnetic core can steadily open, can not produce the incline, has guaranteed the stability of solenoid valve work.
Drawings
The technical scheme of the utility model is further explained by combining the attached drawings as follows:
fig. 1 is a schematic diagram of a precise flow control structure of an electromagnetic valve according to the present invention;
fig. 2 is a schematic view of the overlooking structure of the valve core of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, the precision flow control structure of an electromagnetic valve according to the present invention comprises an electromagnetic coil, an elastic member, a magnetic core 1 and a valve core 2; the magnetic core 1 is positioned above the valve core 2, and the electromagnetic coil generates upward attraction force F to the magnetic core 11After the magnetic core 1 moves upwards, the elastic part is compressed, so that the elastic part generates downward elastic force F to the magnetic core 12When fluid passes between the magnetic core 1 and the valve core 2, a downward force F is generated on the magnetic core 1 due to the Bernoulli effect3，F1Overcome F2And F3To control the magnetic coreOpening d of 1; different flow rates can be generated by different opening degrees d, and the function of precisely controlling the flow rates is achieved.
The upper surface of the valve core 2 is provided with an annular blocking wall 3 and four bosses 4, the annular blocking wall 3 is provided with four flow guide openings 5, the four bosses 4 are all positioned at the inner ring of the annular blocking wall 3, the four flow guide openings 5 and the four bosses 4 are uniformly distributed around the axis of the valve core 2, a flow passage 6 is formed between each boss 4 and the annular blocking wall 3, and the flow passage 6 is communicated with the flow guide openings 5; annular keeps off wall 3 and boss 4 and case 2 structure as an organic whole, forms through the last surface machining at case 2, and annular keeps off wall 3 and the top surface of boss 4 flushes, makes magnetic core 1 pressfitting in the top surface that annular kept off wall 3 and boss 4 in step.
The boss 4 is provided with a flow passage hole 7 penetrating through the valve core 2, and the upper surface of the boss 4 is also provided with a flow guide groove 8 which is of a slender structure and has a micron-scale size; the boss 4 is of a fan-shaped structure with an outward arc surface, so that the flow channel 6 is an arc-shaped flow channel, the flow guide groove 8 leads to the arc surface side of the boss 4 and points to the middle of two adjacent flow guide openings 5, the flow channel hole 7 is communicated with the flow channel 6 through the flow guide groove 8, the flow balance of fluid is further improved, the flow is stabilized, and the fluid can be gas or liquid.
The arrangement of the plurality of bosses 4 is only one implementation mode of the scheme, the bosses 4 can also be of an integral boss structure, a plurality of holes can be arranged on the integral bosses, and each hole corresponds to one diversion trench; or only one hole is arranged in the right middle of the integral boss, and 4 or 3 diversion grooves are symmetrically arranged on the edge; other diversion structures are not listed in this embodiment, but all equivalent changes based on the core idea of the diversion structure of this embodiment should be covered in the protection scope of this application.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides a precision flow control structure of solenoid valve which characterized in that: comprises an electromagnetic coil, an elastic piece, a magnetic core (1) and a valve core (2); the magnetic core (1) is positioned above the valve core (2), the electromagnetic coil generates upward suction to the magnetic core (1), and the elastic piece generates downward elastic force to the magnetic core (1); the upper surface of the valve core (2) is provided with an annular blocking wall (3) and a boss (4), the annular blocking wall (3) is provided with a plurality of flow guide openings (5), the boss (4) is positioned at the inner ring of the annular blocking wall (3), a flow channel (6) is formed between the boss (4) and the annular blocking wall (3), and the flow channel (6) is communicated with the flow guide openings (5); the boss (4) is provided with a vertically through flow channel hole (7), the upper surface of the boss (4) is also provided with a flow guide groove (8), and the flow channel hole (7) is communicated with the flow channel (6) through the flow guide groove (8).
2. A precision flow control structure of an electromagnetic valve according to claim 1, characterized in that: the annular blocking wall (3) and the boss (4) are integrated with the valve core (2) and formed by machining the upper surface of the valve core (2), and the annular blocking wall (3) is flush with the top surface of the boss (4).
3. A precision flow control structure of an electromagnetic valve according to claim 1, characterized in that: the upper surface of case (2) has a plurality of bosss (4), all is provided with flow passage hole (7) and guiding gutter (8) on every boss (4), and a plurality of water conservancy diversion openings (5) and a plurality of boss (4) are evenly arranged around the axis of case (2), and the quantity of water conservancy diversion opening (5) equals with the quantity of boss (4).
4. A precision flow control structure of an electromagnetic valve according to claim 3, characterized in that: the diversion trench (8) points to the middle of two adjacent diversion openings (5).
5. A precision flow control structure of an electromagnetic valve according to claim 3, characterized in that: the boss (4) is of a fan-shaped structure with an outward cambered surface, and the diversion trench (8) leads to the cambered surface side of the boss (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020800087.1U CN212928940U (en) | 2020-05-14 | 2020-05-14 | Accurate flow control structure of solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020800087.1U CN212928940U (en) | 2020-05-14 | 2020-05-14 | Accurate flow control structure of solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212928940U true CN212928940U (en) | 2021-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020800087.1U Active CN212928940U (en) | 2020-05-14 | 2020-05-14 | Accurate flow control structure of solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212928940U (en) |
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2020
- 2020-05-14 CN CN202020800087.1U patent/CN212928940U/en active Active
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