CN212536665U - Straight-through normally-open type electromagnetic valve - Google Patents
Straight-through normally-open type electromagnetic valve Download PDFInfo
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- CN212536665U CN212536665U CN202020210018.5U CN202020210018U CN212536665U CN 212536665 U CN212536665 U CN 212536665U CN 202020210018 U CN202020210018 U CN 202020210018U CN 212536665 U CN212536665 U CN 212536665U
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Abstract
The utility model discloses a direct open solenoid valve in usual, include: a valve body having a through channel, an electromagnetic coil disposed along an outer circumference of the valve body, and an exciter body disposed in the through channel in a middle portion of the valve body; a valve core is movably arranged in the through cavity at the near end of the valve body, a fluid channel is formed between the valve core and the inner wall of the through cavity, and a rubber plug matched with the excitation body is embedded at the far end of the valve core; the outer circumference of the valve core is sleeved with a spring, the near end of the spring is abutted against the convex section of the near end of the valve core, and the far end of the spring is abutted against the end face of the near end of the exciting body; when the magnetic valve is electrified, the exciting body generates magnetic attraction under the action of the electromagnetic coil, the valve core overcomes the reverse elasticity of the spring to move to the exciting body under the action of the magnetic attraction, and the magnetic flow channel is sealed by the rubber plug. The utility model discloses a direct normally open solenoid valve, structural design is novel, simple, and low in manufacturing cost has realized that the function is opened in circular telegram disconnection, the outage of solenoid valve, and its sealing performance is good, uses reliable and stable.
Description
Technical Field
The utility model relates to a solenoid valve technical field especially relates to a direct open solenoid valve in usual.
Background
The electromagnetic valve is used as an electromagnetic control industrial device, is an automatic execution element for controlling fluid, and has wide application field and diversified functions. Conventionally, the solenoid valve control is mostly of a normally closed type, i.e., the valve is opened when the power is on and closed when the power is off, and structurally, the solenoid coil is arranged in the vertical direction of the channel. The structure leads to larger overall dimension of the electromagnetic valve, and in addition, in some logic application places, the electromagnetic valve is often required to realize the functions of power-on disconnection and power-off opening. Therefore, it is necessary to provide a normally open type solenoid valve having a function of opening when power is turned off.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: aiming at the defects in the prior art, the through normally-open type electromagnetic valve with the functions of power-on disconnection and power-off opening is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a direct open solenoid valve in usual, include: a valve body having a through-passage, a solenoid coil disposed along an outer circumference of the valve body, and an exciter body disposed in the through-passage in a middle portion of the valve body and having a magnet flow passage; wherein:
a valve core is movably arranged in the through cavity at the near end of the valve body, a gap between the valve core and the inner wall of the through cavity forms a fluid channel, and a rubber plug matched with the excitation body is embedded at the far end of the valve core; a spring is sleeved on the outer circumference of the valve core, the near end of the spring is abutted against the convex section of the near end of the valve core, and the far end of the spring is abutted against the end face of the near end of the excitation body;
when the magnet is electrified, the excitation body generates magnetic attraction under the action of the electromagnetic coil, the valve core overcomes the reverse elasticity of the spring under the action of the magnetic attraction to move towards the excitation body, and the magnet flow channel is sealed through the rubber plug.
Further, on the through normally open solenoid valve, the valve body is provided with a through cavity channel along the direction of the axial lead L, the through cavity channel comprises a buffer accommodating cavity, a valve core accommodating cavity, a magnet accommodating cavity, a first valve body flow channel and a second valve body flow channel which are sequentially arranged from the near end to the far end, the valve core is movably arranged in the buffer accommodating cavity and the valve core accommodating cavity, and the excitation body is fixedly arranged in the magnet accommodating cavity.
Further preferably, in the straight-through normally-open solenoid valve, an inner diameter of the buffer accommodating chamber is larger than an inner diameter of the valve core accommodating chamber, and an inner diameter of the valve core accommodating chamber is larger than an inner diameter of the magnet accommodating chamber.
Further preferably, in the straight-through normally-open type electromagnetic valve, an inner diameter of the second valve body flow passage is larger than an inner diameter of the first valve body flow passage, and an inner diameter of the first valve body flow passage is equal to an inner diameter of the magnet flow passage.
Further, the through normally open solenoid valve on, the near-end terminal surface of the body of exciting is provided with annular sealed boss, the distal end terminal surface of rubber buffer seted up with sealed boss matched with annular sealed recess.
Furthermore, on the straight-through normally-open electromagnetic valve, the valve core is integrally formed by a limit section at the near end and a straight section at the far end, and the diameter of the limit section is larger than that of the straight section; wherein;
the end face of the near end of the limiting section is provided with a buffer groove and a plurality of longitudinal diversion trenches, the end face of the outer circumference is provided with a plurality of transverse diversion trenches, and the buffer groove is communicated with the transverse diversion trenches through the longitudinal diversion trenches;
the assembly groove has been seted up to the distal end terminal surface of straight section, the near-end interference of rubber buffer is inlayed and is established in the assembly groove.
Further preferably, on the through normally-open electromagnetic valve, an annular notch groove is formed in the outer periphery of the near end of the limiting section, the annular notch groove is respectively communicated with the plurality of transverse guide grooves and the plurality of longitudinal guide grooves, and the plurality of longitudinal guide grooves are distributed outside the buffer groove in a scattering manner.
Further preferably, on the straight-through normally-open electromagnetic valve, the diameter of the limiting section is smaller than that of the buffer accommodating cavity and larger than that of the valve core accommodating cavity; and the diameter of the straight section is smaller than that of the valve core accommodating cavity.
Further, direct normally open solenoid valve on, still include a threaded connection in the first lock nut of valve body near-end, first feed liquor runner, second feed liquor runner and third feed liquor runner have been seted up in proper order from near-end to distal end along its axial lead L direction in the first lock nut, the diameter of second feed liquor runner is less than the diameter of first feed liquor runner and third feed liquor runner, just the circumference inner wall of first feed liquor runner and third feed liquor runner is provided with the assembly screw thread.
Furthermore, the straight-through normally-open type electromagnetic valve further comprises a second locking nut which is connected with the far end of the valve body through a bolt so as to lock and fix the electromagnetic coil on the outer circumference of the valve body.
The above technical scheme is adopted in the utility model, compared with the prior art, following technological effect has:
the straight-through normally open type electromagnetic valve provided by the utility model arranges the electromagnetic coil along the circumference of the valve body, so that the electromagnetic valve has simple and compact integral structure and wider application space; when the high-pressure pipeline is electrified, the electromagnetic suction force generated by the exciting body is consistent with the flowing direction of the fluid, the closing effect of the pipeline is better, the sealing pressure can reach more than several megapascals, and the high-pressure pipeline sealing device is suitable for sealing a high-pressure pipeline; when the power is off, the valve core retreats under the reverse elasticity of the spring, and the end face of the valve core is provided with a flow guide groove, so that fluid can rapidly enter the valve body, and a pressure dead cavity cannot be formed at an inlet, so that the electromagnetic valve cannot be opened and loses functions; the direct-connection normally-open type electromagnetic valve is novel and simple in structural design and low in manufacturing cost, realizes the functions of power-on disconnection and power-off opening of the electromagnetic valve, and is good in sealing performance and stable and reliable in use.
Drawings
Fig. 1 is a schematic side view of a straight-through normally open solenoid valve according to the present invention;
fig. 2 is a schematic sectional view of the through normally open solenoid valve of the present invention in an open state;
fig. 3 is a schematic view of an assembly structure of a straight normally open solenoid valve according to the present invention;
fig. 4 is a schematic sectional view of the through normally open solenoid valve of the present invention in an off state;
fig. 5 is a schematic sectional view of a valve body in a straight-through normally open solenoid valve according to the present invention;
fig. 6 is a schematic sectional view of the exciter of the straight-through normally open solenoid valve according to the present invention;
fig. 7 is a schematic sectional view of a valve element in a straight-through normally-open solenoid valve according to the present invention;
fig. 8 is a schematic view of a cross-sectional structure of a rubber plug in a straight-through normally open solenoid valve according to the present invention;
fig. 9 is a schematic cross-sectional view of a first locking nut of a straight-through normally open solenoid valve according to the present invention;
wherein the reference symbols are:
10-valve body, 11-buffer containing cavity, 12-valve core containing cavity, 13-magnet containing cavity, 14-first valve body flow passage, 15-second valve body flow passage; 20-an electromagnetic coil; 30-excitation body, 31-magnet flow channel, 32-sealing boss; 40-valve core, 41-limit section, 42-straight section, 43-buffer groove, 44-longitudinal diversion groove, 45-transverse diversion groove, 46-annular gap groove, 47-assembly groove; 50-rubber plug, 51-embedded section, 52-sealing section and 53-sealing groove; 60-a spring; 70-a first lock nut, 71-a first liquid inlet flow channel, 72-a second liquid inlet flow channel, 73-a third liquid inlet flow channel; 80-a second locking nut.
Detailed Description
The present invention will be described in detail and specifically with reference to specific embodiments so as to provide a better understanding of the present invention, but the following embodiments do not limit the scope of the present invention.
Referring to fig. 1-3, the present embodiment provides a straight-through normally-open type solenoid valve, including: a valve body 10 having a through-passage, a solenoid coil 20 disposed along an outer circumference of the valve body 10, and an exciter body 30 disposed in the through-passage in a middle portion of the valve body 10 and having a magnet flow passage 31; wherein: a valve core 40 is movably arranged in the through cavity at the near end of the valve body 10, a gap between the valve core 40 and the inner wall of the through cavity forms a fluid channel, and a rubber plug 50 matched with the exciter 30 is embedded at the far end of the valve core 40; a spring 60 is sleeved on the outer circumference of the valve core 40, the proximal end of the spring 60 abuts against the convex section 41 at the proximal end of the valve core 40, and the distal end abuts against the proximal end face of the exciter 30.
In this embodiment, referring to fig. 4, the electromagnetic coil 20 is arranged along the circumference of the valve body 10, so that the overall structure of the electromagnetic valve is simple and compact, and the applicable space is wider, when the electromagnetic valve is energized, the exciting body 30 generates a magnetic attraction force under the action of the electromagnetic coil 20, the valve core 40 moves to the exciting body 30 under the action of the magnetic attraction force against the reverse elasticity of the spring 60, and the magnet flow channel 31 is sealed by the rubber plug 50; and the electromagnetic suction force generated by the exciting body 30 is consistent with the fluid flowing direction, the pipeline closing effect is better, the sealing pressure can reach more than several megapascals, and the sealing device is suitable for sealing high-pressure pipelines.
In this embodiment, please refer to fig. 5, the valve body 10 is provided with the through cavity channel along the axial line L direction thereof, the through cavity channel includes a buffer accommodating cavity 11, a valve core accommodating cavity 12, a magnet accommodating cavity 13, a first valve body flow channel 14 and a second valve body flow channel 15, which are sequentially arranged from the near end to the far end, the valve core 40 is movably disposed in the buffer accommodating cavity 11 and the valve core accommodating cavity 12, and the exciter 30 is fixedly disposed in the magnet accommodating cavity 13.
In this embodiment, referring to fig. 5, the inner diameter of the buffer accommodating chamber 11 is larger than the inner diameter of the valve element accommodating chamber 12, and the inner diameter of the valve element accommodating chamber 12 is larger than the inner diameter of the magnet accommodating chamber 13. And the inner diameter of the second valve body flow passage 15 is larger than the inner diameter of the first valve body flow passage 14, and the inner diameter of the first valve body flow passage 14 is equal to the inner diameter of the magnet flow passage 31.
In this embodiment, please refer to fig. 6 and 8, the exciter body 30 is embedded in the valve body 10 to form a main flow passage inside the solenoid valve, and an annular sealing boss 32 is disposed on a proximal end surface of the exciter body 30; the distal end terminal surface of rubber buffer 50 seted up with sealed boss 32 matched with annular sealed recess 53, this rubber buffer 50 establishes section 51 by the inlaying of near-end and the integrative constitution of the sealed section 52 of distal end, inlay and establish section 51 and inlay and establish in the assembly groove 47 of case 40 distal end, sealed section 52 set up in the distal end terminal surface of case 40, and with the proximal end terminal surface relative arrangement of the body 30 of exciting, just sealed recess 53 is seted up on this sealed section 52.
In this embodiment, please refer to fig. 7, the valve core 40 is movably disposed in the through channel of the valve body 10, and moves automatically under the action of electromagnetic force and elastic force of the spring 60, the valve core 40 is integrally formed by a proximal limiting section 41 and a distal straight section 42, and the diameter of the limiting section 41 is greater than that of the straight section 42; wherein; a buffer groove 43 and a plurality of longitudinal guide grooves 44 are formed in the end surface of the proximal end of the limiting section 41, a plurality of transverse guide grooves 45 are formed in the end surface of the outer circumference, and the buffer groove 43 is communicated with the transverse guide grooves 45 through the longitudinal guide grooves 44; the distal end terminal surface of straight section 42 has seted up assembly groove 47, the proximal end interference of rubber buffer 50 is inlayed and is established in assembly groove 47.
In this embodiment, please refer to fig. 7, an annular notch groove 46 is formed in an outer peripheral position of the proximal end of the limiting section 41, the annular notch groove 46 is respectively communicated with the plurality of transverse guiding grooves 45 and the plurality of longitudinal guiding grooves 44, and the plurality of longitudinal guiding grooves 44 are scattered outside the buffering groove 43.
In this embodiment, please refer to fig. 7, the diameter of the limiting section 41 is smaller than the diameter of the buffer accommodating cavity 11 and larger than the diameter of the valve core accommodating cavity 12, so that the limiting section 41 only moves back and forth within the length range of the buffer accommodating cavity 11, and then seals or opens the valve; and the diameter of the straight section 42 is smaller than that of the valve core accommodating cavity 12, the spring 60 is sleeved on the straight section 42, the near end of the spring 60 abuts against the convex section 41 at the near end of the valve core 40, and the far end abuts against the end face at the near end of the exciting body 30, during the fluid conveying process, because the valve core 40 is impacted by the fluid, in order to ensure the normal on-off of the electromagnetic valve, the valve core 40 is always under the reverse elasticity of the spring 60.
In addition, through reasonable design the spring 60, control the reverse elasticity size of spring 60, when the impulsive force of fluid to case 40 is greater than the reverse elasticity that spring 60 predetermine, this case 40 is close to exciting body 30 and moves under the effect of fluid impact force for rubber buffer 50 seals magnet fluid 31, also can realize the disconnection of solenoid valve, and this leads to the open-type solenoid valve in usual can realize automatic disconnection protect function when the fluid velocity of flow is too big.
In this embodiment, please continue to refer to fig. 1-4 and fig. 9, the through normally-open solenoid valve further includes a first lock nut 70 screwed to the proximal end of the valve body 10, a first liquid inlet channel 71, a second liquid inlet channel 72 and a third liquid inlet channel 73 are sequentially disposed in the first lock nut 70 from the proximal end to the distal end along the axial line L direction of the first lock nut, the diameter of the second liquid inlet channel 72 is smaller than the diameters of the first liquid inlet channel 71 and the third liquid inlet channel 73, and the circumferential inner walls of the first liquid inlet channel 71 and the third liquid inlet channel 73 are provided with assembling threads.
In this embodiment, with continued reference to fig. 1-4, the through normally-open solenoid valve further includes a second lock nut 80 bolted to the distal end of the valve body 10 to lock the solenoid coil 20 to the outer circumference of the valve body 10.
The working principle of the straight-through normally-open type electromagnetic valve provided by the embodiment is as follows:
fluid flow in the direction of the arrows shown in fig. 2 and 4, through the lock nut 70 and into the valve body 10; when the electromagnetic valve is electrified, the exciting body 30 generates magnetic force under the action of the electromagnetic coil 20, the magnetic force is generated on the valve core 40 along the flowing direction of the fluid, the valve core 40 is close to the exciting body 30, the rubber plug 50 at the end part of the valve core 40 is tightly pressed on the conical surface of the end face of the exciting body 30, and therefore the pipeline is closed; when the power is cut off, the exciter 30 does not generate magnetic force, the valve core 40 is bounced in the opposite direction to the fluid flow by the elastic force of the spring 60, and at the same time, the pipeline is opened and the fluid flows out along the channel. The straight-through normally open type electromagnetic valve with the structure can be used for pressure relief or flow discharge of a pipeline and serves as a protection mechanism of a pipeline system.
The above detailed description of the embodiments of the present invention is only for exemplary purposes, and the present invention is not limited to the above described embodiments. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (10)
1. A straight-through normally-open type electromagnetic valve is characterized by comprising: a valve body (10) having a through-passage, a solenoid coil (20) disposed along an outer circumference of the valve body (10), and an exciting body (30) disposed in the through-passage in a middle portion of the valve body (10) and having a magnet flow passage (31); wherein:
a valve core (40) is movably arranged in the through cavity at the near end of the valve body (10), a gap between the valve core (40) and the inner wall of the through cavity forms a fluid channel, and a rubber plug (50) matched with the excitation body (30) is embedded at the far end of the valve core (40); a spring (60) is sleeved on the outer circumference of the valve core (40), the near end of the spring (60) is abutted against the limiting section (41) of the near end of the valve core (40), and the far end of the spring is abutted against the near end face of the exciting body (30);
when the magnetic field excitation device is electrified, the magnetic field excitation body (30) generates magnetic attraction under the action of the electromagnetic coil (20), the valve core (40) overcomes the reverse elasticity of the spring (60) under the action of the magnetic attraction force to move towards the magnetic field excitation body (30), and the magnet flow channel (31) is sealed through the rubber plug (50).
2. The straight-through normally-open type electromagnetic valve according to claim 1, wherein the valve body (10) is provided with the straight-through cavity channel along the axial line L direction, the straight-through cavity channel comprises a buffer accommodating cavity (11), a valve core accommodating cavity (12), a magnet accommodating cavity (13), a first valve body flow channel (14) and a second valve body flow channel (15) which are sequentially arranged from the near end to the far end, the valve core (40) is movably arranged in the buffer accommodating cavity (11) and the valve core accommodating cavity (12), and the excitation body (30) is fixedly arranged in the magnet accommodating cavity (13).
3. The straight-through normally-open electromagnetic valve according to claim 2, characterized in that the inner diameter of the buffer accommodating chamber (11) is larger than the inner diameter of the spool accommodating chamber (12), and the inner diameter of the spool accommodating chamber (12) is larger than the inner diameter of the magnet accommodating chamber (13).
4. The straight-through normally-open electromagnetic valve according to claim 2, characterized in that the inner diameter of the second valve body flow passage (15) is larger than the inner diameter of the first valve body flow passage (14), and the inner diameter of the first valve body flow passage (14) is equal to the inner diameter of the magnet flow passage (31).
5. The straight-through normally-open type electromagnetic valve according to claim 1, wherein an annular sealing boss (32) is provided on the proximal end face of the exciter body (30), and an annular sealing groove (53) matched with the sealing boss (32) is provided on the distal end face of the rubber plug (50).
6. The straight-through normally-open electromagnetic valve according to claim 1, wherein the valve core (40) is integrally formed by a proximal limiting section (41) and a distal straight section (42), and the diameter of the limiting section (41) is larger than that of the straight section (42); wherein;
a buffer groove (43) and a plurality of longitudinal guide grooves (44) are formed in the end face of the near end of the limiting section (41), a plurality of transverse guide grooves (45) are formed in the end face of the outer circumference, and the buffer groove (43) is communicated with the transverse guide grooves (45) through the longitudinal guide grooves (44);
assembly groove (47) have been seted up to the distal end terminal surface of straight section (42), the near-end interference of rubber buffer (50) is inlayed and is established in assembly groove (47).
7. The straight-through normally-open type electromagnetic valve according to claim 6, wherein an annular notched groove (46) is formed in an outer peripheral position of a proximal end of the limiting section (41), the annular notched groove (46) is respectively communicated with the plurality of transverse guide grooves (45) and the plurality of longitudinal guide grooves (44), and the plurality of longitudinal guide grooves (44) are distributed outside the buffer groove (43) in a scattering manner.
8. The straight-through normally-open electromagnetic valve according to claim 6, characterized in that the diameter of the limiting section (41) is smaller than the diameter of the buffer accommodating cavity (11) and larger than the diameter of the spool accommodating cavity (12); and the diameter of the straight section (42) is smaller than the diameter of the spool-receiving cavity (12).
9. The straight-through normally-open type electromagnetic valve according to claim 1, further comprising a first lock nut (70) in threaded connection with the proximal end of the valve body (10), wherein a first liquid inlet flow channel (71), a second liquid inlet flow channel (72) and a third liquid inlet flow channel (73) are sequentially formed in the first lock nut (70) from the proximal end to the distal end along the axial lead L direction of the first lock nut, and the diameter of the second liquid inlet flow channel (72) is smaller than the diameters of the first liquid inlet flow channel (71) and the third liquid inlet flow channel (73).
10. The straight-through normally-open type electromagnetic valve according to claim 1, further comprising a second lock nut (80) bolted to the distal end of said valve body (10) to lock said electromagnetic coil (20) at the outer circumference of said valve body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020210018.5U CN212536665U (en) | 2020-02-26 | 2020-02-26 | Straight-through normally-open type electromagnetic valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020210018.5U CN212536665U (en) | 2020-02-26 | 2020-02-26 | Straight-through normally-open type electromagnetic valve |
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| CN212536665U true CN212536665U (en) | 2021-02-12 |
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| CN202020210018.5U Active CN212536665U (en) | 2020-02-26 | 2020-02-26 | Straight-through normally-open type electromagnetic valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207218A (en) * | 2020-02-26 | 2020-05-29 | 上海尚实能源科技有限公司 | Straight-through normally-open type electromagnetic valve |
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2020
- 2020-02-26 CN CN202020210018.5U patent/CN212536665U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207218A (en) * | 2020-02-26 | 2020-05-29 | 上海尚实能源科技有限公司 | Straight-through normally-open type electromagnetic valve |
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Address after: 201611 3 3 Ting Ting Road, Che Dun Town, Songjiang District, Shanghai Patentee after: Shanghai Shangshi aeroengine Co.,Ltd. Address before: 201611 3 3 Ting Ting Road, Che Dun Town, Songjiang District, Shanghai Patentee before: SHANGHAI SHANGSHI ENERGY TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |