CN211525556U

CN211525556U - Integrated high-voltage high-frequency electromagnetic valve

Info

Publication number: CN211525556U
Application number: CN201922496901.5U
Authority: CN
Inventors: 蒋凯; 夏任杰; 夏鹏杰
Original assignee: NINGBO KAILING PNEUMATIC CO Ltd
Current assignee: NINGBO KAILING PNEUMATIC CO Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-18
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to the technical field of electromagnetic valves, in particular to an integrated high-pressure high-frequency electromagnetic valve, which comprises a valve body and a guide head part, wherein the valve body is arranged at the lower end of the guide head part, the lower end of the guide head part is provided with a through hole communicated with the input end of the valve body, the guide head part is internally provided with a cavity, a movable iron core capable of moving vertically is arranged in the cavity, the lower end of the movable iron core is provided with a pressure relief cavity, a sealing plug capable of moving vertically and controlling the on-off between the through hole and the input end of the valve body is arranged in the pressure relief cavity, the upper end of the sealing plug is elastically connected with the cavity top of the pressure relief cavity through a second reset spring, a bearing structure for bearing and preventing the bearing structure from falling off from the pressure relief cavity is arranged in the pressure relief cavity, the bottom edge of the pressure relief cavity is provided with a pressure, the utility model can automatically release pressure when the air pressure value is too large, so as to prolong the service life of the internal elements.

Description

Integrated high-voltage high-frequency electromagnetic valve

Technical Field

The utility model relates to a solenoid valve technical field, concretely relates to integral type high pressure high frequency solenoid valve.

Background

When the electromagnetic valve is used in daily life, the air pressure value of air flow flowing in the valve body has fluctuation, the fluctuation is high and low, and under the condition of higher air pressure value, the distance for the air flow to pass through in the valve body is constant, so that the electromagnetic valve can play a role of scouring internal components of the valve body, and the internal precision and the service life of the valve body are influenced in time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an integral type high pressure high frequency solenoid valve.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an integral type high pressure high frequency solenoid valve, includes valve body and guide head, the valve body sets up the lower extreme at guide head, guide head's lower extreme is offered and is used for the through-hole that is linked together with the valve body input, the die cavity has the die cavity in the guide head, the die cavity is linked together with the output of valve body all the time, the middle part department in the die cavity is equipped with the movable iron core that can vertical activity, the upper end of moving the iron core is provided with circular telegram magnet to through first reset spring elastic connection between the two, through the circular telegram magnet with the cooperation is inhaled to movable iron core magnetism, the lower extreme of moving the iron core has the pressure release chamber, be equipped with in the pressure release chamber can vertical activity and be used for controlling the break-make between through-hole and the input of valve body, the upper end of sealing plug passes through the chamber top elastic connection in second reset spring, And prevent the bearing structure that the sealing plug drops by the pressure release intracavity, the bottom border department in pressure release chamber is equipped with pressure release structure, form the pressure release runner between the surface of pressure release structure and sealing plug, the outer wall of moving the iron core is seted up can all the time with the die cavity in the pressure release hole that communicates, works as under second reset spring is in the shrink state, the pressure release runner can communicate with the pressure release hole, works as under second reset spring is in the normality, bearing structure can cut off the intercommunication between pressure release hole and the pressure release runner.

Furthermore, a through hole is formed in the bottom wall of the guide head, and the cavity is communicated with the output end of the valve body through the through hole.

Further, the bearing structure comprises an annular bulge formed by encircling a central line in a cavity, the annular bulge and the inner wall of the pressure relief cavity are integrally formed, the sealing plug and the annular bulge are coaxial, the sealing plug is composed of an upper body and a lower body, the cross section of the upper body is in a trapezoid shape with a narrow top and a wide bottom, the diameter of the bottom of the upper body is larger than the inner diameter of the annular bulge and smaller than the outer diameter of the annular bulge, when the second return spring is in a normal state, the bottom surface of the upper body can be in close contact with the upper surface of the annular bulge, when the second return spring is in a normal state, the lower body is arranged corresponding to the pressure relief structure, the pressure relief flow channel is formed between the lower body and the pressure relief structure, and the outer diameter of the lower body is equal to the inner.

Furthermore, a smooth flow channel for communicating the pressure relief hole and the pressure relief flow channel is formed between the outer surface of the upper body and the inner surface of the cavity.

Furthermore, the inner wall of the cavity is provided with a limiting bulge which is formed by winding around the center line of the cavity and is of an annular structure, and the diameter of the top end of the upper body is larger than the inner diameter of the limiting bulge and smaller than the outer diameter of the limiting bulge.

Furthermore, the pressure relief structure is an inverted inclined plane arranged on the pressure relief cavity.

Further, the valve body is in threaded connection with the lower end of the guide head, and a sealing ring is arranged at the connection position of the valve body and the guide head.

The utility model has the advantages that: when the valve body normally works, firstly, the electromagnet is electrified to work, then the movable iron core is acted by a magnetic field and moves upwards in the cavity, the first return spring is pressed in the process, the sealing plug is driven to rise synchronously, the through hole is opened due to rising of the sealing plug, so that high-pressure airflow entering at the output end of the valve body enters the cavity and is discharged into the output end of the valve body from the through hole, a supply passage is formed, the air pressure of the airflow of the passage is below a set value, the sealing plug is not influenced by the air pressure, the second return spring is in a normal state, the bottom surface of the upper body is tightly attached to the upper surface of the annular bulge at the moment, and the pressure relief hole is not communicated with the pressure relief flow channel; when other pressure exceeds a constant value, the air flow can jack up the sealing plug to press the second return spring, and when the pressure exceeds the constant value, the lower surface of the upper body is not in contact with the upper surface of the annular bulge, so that a space is formed between the upper surface of the upper body and the upper surface of the annular bulge, the pressure relief flow channel can be communicated with the pressure relief hole, and the overpressure part can be upwards discharged through the flow channel and transferred into the cavity through the pressure relief hole; in addition, in order to reduce the later maintenance rate of the utility model, the safety of the second reset spring is ensured by adding the limit bulge, namely, the limit bulge prevents the limit damage to the second reset spring caused by the excessive air pressure exceeding a constant value, namely, the excessive air pressure causes the sealing plug to press the second reset spring to be too large, so that the limit of the second reset spring is broken through, the second reset spring cannot reset, and the subsequent maintenance difficulty is brought; therefore, the limiting bulge can ensure that the sealing plug cannot continuously rise when being collided when the sealing plug rises to a height close to the limit of the second return spring, however, when reaching the air pressure critical value, manual intervention operation can be carried out for corresponding adjustment, so that the situation that the pressure relief flow passage is blocked due to the fact that the sealing plug rises to the limit position, the strong pressure cannot be relieved, and the stability of the inner wall structure of the guide head is influenced is avoided; the utility model discloses can carry out the pressure release automatically when atmospheric pressure value is too big to reach the security of protection internal element.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a plan sectional view of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a partial schematic view one of the present invention;

fig. 4 is a partial schematic view of the present invention;

FIG. 5 is an enlarged view at B in FIG. 4;

in the figure: valve body 1, output 1a, input 1 b.

The lead head part 2, the through hole 3, the cavity 4 and the via hole 5.

The electromagnet 6 and the first return spring 7 are energized.

The movable iron core 8, the second return spring 9, the pressure relief cavity 10, the annular bulge 11, the inverted inclined plane 12, the pressure relief runner 13, the pressure relief hole 14, the smooth runner 15 and the limiting bulge 16.

Upper body 17, lower part 18, sealing washer 19.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, the integrated high-voltage high-frequency electromagnetic valve comprises a valve body 1 and a guide head part 2, wherein the valve body 1 is arranged at the lower end of the guide head part 2, the lower end of the guide head part 2 is provided with a through hole 3 communicated with an input end 1b of the valve body 1, a cavity 4 is arranged in the guide head part 2, the cavity 4 is always communicated with an output end 1a of the valve body 1, a movable iron core 8 capable of moving vertically is arranged at the middle section in the cavity 4, the upper end of the movable iron core 8 is provided with an energized magnet 6, the energized magnet 6 and the movable iron core 8 are elastically connected through a first return spring 7, the energized magnet 6 is in magnetic attraction fit with the movable iron core 8, the lower end of the movable iron core 8 is provided with a pressure relief cavity 10, a sealing plug capable of moving vertically and used for controlling the on-off between the through hole 3 and, the upper end of sealing plug passes through the chamber top elastic connection of second reset spring 9 with pressure release chamber 10, be equipped with in the pressure release chamber 10 and be used for the bearing and prevent the bearing structure that the sealing plug drops in by pressure release chamber 10, the bottom border department of pressure release chamber 10 is equipped with pressure release structure, form pressure release runner 13 between the surface of pressure release structure and sealing plug, move the outer wall of iron core 8 and offer the pressure release hole 14 that can communicate in with die cavity 4 all the time, work as under second reset spring 9 is in the contraction state, pressure release runner 13 can be linked together with pressure release hole 14, work as under second reset spring 9 is in the normality, bearing structure can cut the intercommunication between pressure release hole 14 and the pressure release runner 13.

The bottom wall of the guide head part 2 is provided with a via hole 5, the cavity 4 is communicated with the output end 1a of the valve body 1 through the via hole 5, after the electrified magnet 6 works, the movable iron core 8 is acted by a magnetic field and moves upwards in the cavity 4, the first return spring 7 is pressed in the process, and then the sealing plug is driven to rise synchronously, and the through hole 3 is opened due to the rising of the sealing plug, so that high-pressure airflow entering from the output end 1a of the valve body 1 can enter the cavity 4 and is discharged into the output end 1a of the valve body 1 through the via hole 5, and a supply passage is further formed; the working principle of the energized magnet 6 is electromagnetic, and the cooperation between the energized magnet and the movable iron core 8 is also prior art, so the details are not described.

The bearing structure comprises an annular bulge 11 formed by encircling the central line in the cavity 4, the annular bulge 11 and the inner wall of the pressure relief cavity 10 are integrally formed, the sealing plug and the annular bulge 11 are coaxial, and the sealing plug is composed of an upper body 17 and a lower body 18, the cross section of the upper body 17 is in a trapezoid shape with a narrow top and a wide bottom, the bottom diameter of the upper body 17 is larger than the inner diameter of the annular bulge 11, and is smaller than the outer diameter of the annular protrusion 11, when the second return spring 9 is in a normal state, the bottom surface of the upper body 17 can be brought into close contact with the upper surface of the annular protrusion 11, when the second return spring 9 is in a normal state, the lower body 18 is arranged corresponding to a pressure relief structure, the pressure relief flow passage 13 is formed between the pressure relief structure and the lower body 18, the outer diameter of the lower body is equal to the inner diameter of the annular bulge 11, and the annular bulge 11 can prevent the sealing plug from falling from the pressure relief cavity 10; meanwhile, the movable iron core 8 can be lifted together with the sealing plug through the annular bulge 11 in the lifting process, so that the through hole 3 can be opened and closed; at this time, if the air pressure is normal, the second return spring 9 is not affected at all, and is in a normal state, if the air pressure exceeds the bearing range of the second return spring 9, namely exceeds a constant air pressure, at this time, the air flow can jack up the sealing plug to press the second return spring 9, the indirect pressure relief flow passage 13 is communicated with the pressure relief hole 14, at this time, the overpressure part is discharged upwards through the flow passage and is transferred into the cavity 4 through the pressure relief hole 14, and the output end 1a of the valve body 1 can reduce the pressure intensity of the peripheral area of the lower body 18 through the structure, and effectively protects the damage to the internal components of the guide head 2 when the air pressure exceeds the constant value; when the air pressure is normal, the bottom surface of the upper body 17 is tightly attached to the upper surface of the annular bulge 11, so that air flow can directly enter the output end 1a of the valve body 1 from the cavity 4 without transferring and relieving pressure.

An unobstructed flow channel 15 for communicating the pressure relief hole 14 and the pressure relief flow channel 13 is formed between the outer surface of the upper body 17 and the inner surface of the cavity 4, and the unobstructed flow channel 15 is used for ensuring the communication function between the pressure relief flow channel 13 and the pressure relief hole 14.

The inner wall of the cavity 4 is provided with a limiting bulge 16 which is formed by winding around a central line and is of an annular structure, the diameter of the top end of the upper body 17 is larger than the inner diameter of the limiting bulge 16 and smaller than the outer diameter of the limiting bulge 16, the limiting bulge 16 prevents the air pressure from exceeding a constant value to be too large, so that the limit damage to the second return spring 9 is caused, namely the air pressure is too large, the sealing plug presses the second return spring 9 to be too large, the limit of the second return spring 9 is broken through, the second return spring cannot be reset, and the subsequent maintenance difficulty is further brought; the stop lug 16 thus ensures that the bore seal will not rise further when it is lifted to a height close to the limit of the second return spring 9, against which it is urged.

The pressure relief structure is an inverted inclined plane 12 arranged on the pressure relief cavity 10.

The valve body 1 is in threaded connection with the lower end of the guide head part 2, a sealing ring 19 is arranged at the joint of the valve body and the guide head part, and the sealing ring 19 can improve air tightness.

The working principle is as follows: when the valve body 1 normally works, firstly, the electromagnet 6 is electrified to work, then the movable iron core 8 is acted by a magnetic field and moves upwards in the cavity 4, the first return spring 7 is pressed in the process, the sealing plug is driven to rise synchronously, the through hole 3 is opened due to rising of the sealing plug, so that high-pressure airflow entering from the output end 1a of the valve body 1 can enter the cavity 4 and is discharged into the output end 1a of the valve body 1 from the walking hole 5, a supply passage is formed, the air pressure of the airflow of the passage is below a set value, the sealing plug is not influenced by the air pressure, the second return spring 9 is in a normal state at the moment, the bottom surface of the upper body 17 is tightly attached to the upper surface of the annular bulge 11 at the moment, and the pressure relief hole 14 is not communicated with the pressure relief flow channel 13; when other pressure exceeds a constant value, the air flow can jack up the sealing plug to press the second return spring 9, when the lower surface of the upper body 17 is not in contact with the upper surface of the annular bulge 11, a space is formed between the upper surface and the lower surface, the pressure relief flow passage 13 can be communicated with the pressure relief hole 14, and when the overpressure part is upwards discharged through the flow passage and is transferred into the cavity 4 through the pressure relief hole 14, and the output end 1a of the valve body 1 can reduce the compression strength of the peripheral area of the lower body 18 through the structure and effectively protect the damage to the components in the guide head part 2 when the air pressure exceeds the constant value; in addition, in order to reduce the later maintenance rate of the utility model, the safety of the second return spring 9 is ensured by additionally arranging the limiting bulge 16, namely the limiting bulge 16 prevents the air pressure from exceeding a constant value and being too large, so that the limit damage to the second return spring 9 is caused, namely the air pressure exceeds an excessive value, so that the sealing plug presses the second return spring 9 to be too large, the limit of the second return spring 9 is broken through, the second return spring cannot be reset, and the difficulty of subsequent maintenance is further brought; therefore, the limiting protrusion 16 can ensure that the sealing plug is lifted to a height close to the limit of the second return spring 9 and is collided, so that the sealing plug cannot continuously rise, however, when the air pressure critical value is reached, the manual operation can be involved to perform corresponding adjustment, so that the situation that the sealing plug rises to the limit position to cause the blockage of the pressure relief flow channel 13 is avoided, the strong pressure cannot be relieved, and the stability of the inner wall structure of the guide head part 2 is influenced.

It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims

1. The utility model provides an integral type high pressure high frequency solenoid valve, its characterized in that, includes valve body (1) and leads head (2), valve body (1) sets up the lower extreme at leading head (2), the lower extreme of leading head (2) is offered and is used for through-hole (3) that are linked together with valve body (1) input (1b), it has die cavity (4) in head (2) to lead, die cavity (4) are linked together with output (1a) of valve body (1) all the time, the middle part department in die cavity (4) is equipped with movable iron core (8) that can vertical activity, the upper end of movable iron core (8) is provided with circular telegram magnet (6) to through first reset spring (7) elastic connection between the two, circular telegram magnet (6) with movable iron core (8) magnetism is inhaled the cooperation, the lower extreme of movable iron core (8) has pressure release chamber (10), be equipped with in the pressure release chamber (10) and can vertical activity, And a sealing plug for controlling the on-off between the through hole (3) and the input end (1b) of the valve body (1), the upper end of the sealing plug is elastically connected with the cavity top of the pressure relief cavity (10) through a second return spring (9), a supporting structure for supporting and preventing the sealing plug from falling off from the pressure relief cavity (10) is arranged in the pressure relief cavity (10), a pressure relief structure is arranged at the bottom edge of the pressure relief cavity (10), a pressure relief flow passage (13) is formed between the pressure relief structure and the outer surface of the sealing plug, a pressure relief hole (14) which can be communicated with the inside of the cavity (4) all the time is arranged on the outer wall of the movable iron core (8), when the second return spring (9) is in a contracted state, the pressure relief flow passage (13) can be communicated with the pressure relief hole (14), when the second return spring (9) is in a normal state, the bearing structure can cut off the communication between the pressure relief hole (14) and the pressure relief flow passage (13).

2. The integrated high-pressure high-frequency electromagnetic valve according to claim 1, wherein a through hole (5) is formed in the bottom wall of the guide head portion (2), and the cavity (4) is communicated with the output end (1a) of the valve body (1) through the through hole (5).

3. The one-piece high-pressure high-frequency electromagnetic valve according to claim 1, wherein the supporting structure comprises an annular protrusion (11) formed around the center line in the cavity (4), the annular protrusion (11) is integrally formed with the inner wall of the pressure relief cavity (10), the sealing plug is coaxial with the annular protrusion (11), and the sealing plug is composed of an upper body (17) and a lower body (18), the cross section of the upper body (17) is trapezoidal, the upper body (17) has a bottom diameter larger than the inner diameter of the annular protrusion (11) and smaller than the outer diameter of the annular protrusion (11), the bottom surface of the upper body (17) can be in close contact with the upper surface of the annular protrusion (11) when the second return spring (9) is in a normal state, and the lower body (18) is arranged corresponding to the pressure relief structure when the second return spring (9) is in a normal state, and the pressure relief structure form the pressure relief flow passage (13), and the outer diameter of the lower body (18) is equal to the inner diameter of the annular bulge (11).

4. The integrated high-pressure high-frequency electromagnetic valve according to claim 3, wherein a smooth flow passage (15) for communicating the pressure relief hole (14) and the pressure relief flow passage (13) is formed between the outer surface of the upper body (17) and the inner surface of the cavity (4).

5. The integrated high-pressure high-frequency electromagnetic valve according to claim 3, wherein the inner wall of the cavity (4) is provided with a limit protrusion (16) which is wound around the center line thereof and has an annular structure, and the top diameter of the upper body (17) is larger than the inner diameter of the limit protrusion (16) and smaller than the outer diameter of the limit protrusion (16).

6. An integrated high-pressure high-frequency electromagnetic valve according to any one of claims 1 to 5, characterized in that the pressure relief structure is an inverted slope (12) provided on the pressure relief cavity (10).

7. An integrated high-pressure high-frequency electromagnetic valve according to any one of claims 1 to 5, characterized in that the valve body (1) is screwed with the lower end of the guide head part (2), and a sealing ring (19) is arranged at the joint of the two.