CN214500086U

CN214500086U - High-precision electromagnetic valve with good sealing performance

Info

Publication number: CN214500086U
Application number: CN202120037872.0U
Authority: CN
Inventors: 李春宏
Original assignee: Suzhou Aihete Technology Co ltd
Current assignee: Suzhou Aihete Technology Co ltd
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-10-26
Anticipated expiration: 2031-01-07

Abstract

The utility model relates to the technical field of solenoid valves, in particular to a high-precision solenoid valve with good sealing performance, which comprises a valve body, a driving box, a separating piece and a power supply box, wherein a valve cavity is arranged inside the valve body, the separating piece is arranged in the valve cavity, the power supply box is matched with the driving box, and the driving box is provided with two groups which are respectively arranged at two sides of the valve body; a liquid inlet and a liquid outlet are respectively arranged at two ends of the valve body, and the liquid inlet and the liquid outlet are communicated with the valve cavity; the partition divides the valve cavity into two independent cavities, and a communication cavity is arranged in the partition; a moving rod is arranged in the driving box, and a sealing piece is arranged on the moving rod; the separator is correspondingly provided with a communication hole, and the sealing element is correspondingly inserted into the communication hole; a coil is arranged in the driving box and is arranged outside the moving rod; a fixed rod is fixed at the end part of the driving box, and the fixed rod and the moving rod are both metal rods and are arranged oppositely; the utility model discloses the leakproofness is good, is convenient for push away the pass.

Description

High-precision electromagnetic valve with good sealing performance

Technical Field

The utility model relates to a solenoid valve technical field specifically is a high accuracy solenoid valve that leakproofness is good.

Background

The electromagnetic valve is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium.

The existing electromagnetic valve has the problems of poor sealing performance, easy leakage and low precision after long-term use, and brings inconvenience to practical application.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy solenoid valve that the leakproofness is good to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-precision electromagnetic valve with good sealing performance comprises a valve body, a driving box, partition pieces and power supply boxes, wherein a valve cavity is formed in the valve body, the partition pieces are arranged in the valve cavity, the power supply boxes and the driving box are arranged in a matched mode, and the driving boxes are provided with two groups and are respectively installed on the upper side and the lower side of the valve body; a liquid inlet and a liquid outlet are respectively arranged at two ends of the valve body, and the liquid inlet and the liquid outlet are communicated with the valve cavity; the partition divides the valve cavity into two independent cavities, and a communication cavity is arranged in the partition; a moving rod is arranged in the driving box, and a sealing piece is arranged on the moving rod through a connecting rod; the separator is correspondingly provided with a communication hole, and the sealing element is correspondingly inserted into the communication hole; a coil is arranged in the driving box, is arranged on the outer side of the moving rod and is electrically connected with the power supply box; the end part of the driving box is fixed with a fixed rod, the fixed rod and the moving rod are metal rods, the fixed rod and the moving rod are arranged oppositely, and a spring is connected between the fixed rod and the moving rod.

Preferably, the cross section of the separator is of a square annular structure, and the communication cavity is arranged on the inner side of the ring; the annular opposite corners of the separating piece are respectively connected with the cavity wall of the valve cavity, and inclined guide surfaces are arranged at the connecting parts.

Preferably, the sealing elements are provided with two types, namely a first sealing element in a circular truncated cone shape and a second sealing element in a spherical shape; the communicating holes are correspondingly provided with two types, namely a first communicating hole in a circular truncated cone shape and a second communicating hole in a hemispherical shape.

Preferably, the thickness of the first sealing element is one half of the depth of the first communication hole, and a sealing sleeve made of rubber material is arranged on the outer side of the first sealing element.

Preferably, the bottom of the second communicating hole is hemispherical, and a through hole is formed in the bottom of the second communicating hole and communicated with the communicating cavity; the radian of the spherical surface of the second sealing element is the same as that of the second communication hole.

Preferably, thickened parts are respectively arranged on the upper side and the lower side of the separator, and the thickened parts protrude into the communication cavity; the communicating holes are respectively arranged at the thickened parts.

Preferably, the fixed rod is provided with a guide rod, the moving rod is provided with a guide groove, the guide rod penetrates through the guide groove, and the guide rod is positioned on the inner side of the spring.

Preferably, the moving rod penetrates through the valve body, and a sealing ring is arranged at the connecting part of the moving rod and the valve body for sealing treatment.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up relative two sets of electromagnetic structure, set up independent intercommunication chamber, through the switching in management intercommunication chamber, realize the switching of valve body, compare in traditional solenoid valve, the leakproofness is better, can stabilize the operation for a long time, the problem that can not appear leaking, the precision reduces.

Drawings

Fig. 1 is a schematic structural view of the present invention;

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

FIG. 3 is an enlarged view of FIG. 1 at B;

reference numbers in the figures: 1. a valve body; 11. a valve cavity; 12. a liquid inlet; 13. a liquid outlet; 2. a drive cartridge; 21. A moving bar; 22. a coil; 23. a guide bar; 24. a spring; 25. a connecting rod; 26. a first seal member; 27. A second seal member; 28. fixing a rod; 3. a separator; 31. a communicating cavity; 32. thickening the part; 33. a guide surface; 34. a first communication hole; 35. a second communication hole; 4. and a power supply box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a high-precision electromagnetic valve with good sealing performance comprises a valve body 1, a driving box 2, a partition 3 and a power supply box 4, wherein a valve cavity 11 is arranged in the valve body 1, the partition 3 is arranged in the valve cavity 11, the power supply box 4 is matched with the driving box 2, and two groups of driving boxes 2 are arranged and are respectively arranged at the upper side and the lower side of the valve body 1; a liquid inlet 12 and a liquid outlet 13 are respectively arranged at two ends of the valve body 1, and the liquid inlet 12 and the liquid outlet 13 are communicated with the valve cavity 11; the dividing piece 3 divides the valve cavity 11 into two independent cavities, and a communication cavity 31 is arranged in the dividing piece 3; a moving rod 21 is arranged in the driving box 2, and a sealing piece is arranged on the moving rod 21 through a connecting rod 25; the separator 3 is correspondingly provided with a communication hole, and the sealing element is correspondingly inserted into the communication hole; a coil 22 is arranged in the driving box 2, and the coil 22 is arranged outside the moving rod 21 and is electrically connected with the power supply box 4; the end part of the driving box 2 is fixed with a fixed rod 28, the fixed rod 28 and the moving rod 21 are metal rods which are arranged oppositely, and a spring 24 is connected between the fixed rod 28 and the moving rod.

Further, the section of the separator 3 is a square ring structure, and the communication cavity 31 is arranged on the inner side of the ring; the annular opposite corners of the separating piece 3 are respectively connected with the cavity wall of the valve cavity 11, and an inclined guide surface 33 is arranged at the connecting part.

Further, the sealing elements are provided with two types, namely a first sealing element 26 in a circular truncated cone shape and a second sealing element 27 in a spherical shape; two kinds of communication holes are correspondingly arranged, namely a first communication hole 34 in a circular truncated cone shape and a second communication hole 35 in a hemispherical shape.

Further, the thickness of the first sealing element 26 is half of the depth of the first communication hole 34, and a sealing sleeve made of rubber material is arranged outside the first sealing element 26.

Furthermore, the bottom of the second communicating hole 35 is hemispherical, and a through hole is arranged at the bottom of the second communicating hole and communicated with the communicating cavity 31; the spherical arc of the second seal member 27 is the same as the arc of the second communication hole 35.

Furthermore, thickened parts 32 are respectively arranged on the upper side and the lower side of the separator 3, and the thickened parts 32 protrude into the communication cavity 31; the communication holes are provided at the thickened portions 32, respectively.

Further, a guide rod 23 is arranged on the fixed rod 28, a guide groove is arranged on the moving rod 21, the guide rod 23 penetrates through the guide groove, and the guide rod 23 is positioned on the inner side of the spring 24.

Further, the moving rod 21 penetrates through the valve body 1, and a sealing ring is arranged at the connecting part of the moving rod and the valve body for sealing treatment.

The working principle is as follows: in the actual use process, the liquid inlet 12 and the liquid outlet 13 at the two ends of the valve body 1 are respectively connected with a pipeline; the liquid enters the valve cavity 11 from the liquid inlet 12, and because the valve cavity 11 is divided into two independent chambers by the partition 3, the liquid enters the communicating cavity 31 of the partition 3, then enters the other chamber of the valve cavity 11 from the communicating cavity 31, and enters the liquid outlet 13 from the chamber, so that the circulation process is completed.

The upper side and the lower side of the separator 3 are both provided with communicating holes, correspondingly inserted and connected with sealing elements, and provided with two groups of valve structures; the power supply box 4 supplies power to the coil 22, the coil 22 is electrified to enable the fixed rod 28 and the moving rod 21 made of metal materials to be magnetized, the fixed rod and the moving rod 21 are mutually attracted, therefore, the sealing pieces connected with the respective moving rods 21 through the connecting rods 25 are pulled out from the corresponding communication holes, the communication cavity 31 is communicated with the two cavities of the valve cavity 11, and the whole valve is in an open state. In the de-energized state of the coil 22, the moving rod 21 is pushed by the spring 24 to press the seal at its end against the communicating hole, thereby sealing the valve, and the whole valve is in a closed state. The two groups of valves are matched together, any one group leaks, and the other group can still well seal.

The sealing elements are provided with two types, namely a first sealing element 26 in a circular truncated cone shape and a second sealing element 27 in a spherical shape, which are respectively inserted into the first through hole 34 in the circular truncated cone shape and the second through hole 35 in the hemispherical shape, so that the sealing elements are convenient to match and seal. The first sealing element 26 is positioned in the middle of the first communication hole 34, and a sealing sleeve made of rubber materials is arranged on the outer side of the first sealing element 26, so that the sealing property is further improved; the radian of the spherical surface of the second sealing element 27 is the same as that of the second communication hole 35, so that the second sealing element and the second communication hole are tightly attached to each other, and the sealing effect is ensured.

The strength of the communication hole part of the separator 3 is increased by the arrangement of the thickened part 32; the guide surface 33 can play a certain role in guiding and resisting impact in the liquid flowing process. The guide rod 23 is arranged to ensure the directivity of the moving rod 21 in the moving process and avoid deflection; the sealing treatment is carried out between the moving rod 21 and the valve body 1, so that the liquid is prevented from leaking into the driving box 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high accuracy solenoid valve that leakproofness is good which characterized in that: the valve comprises a valve body (1), a driving box (2), a separating piece (3) and a power supply box (4), wherein a valve cavity (11) is arranged in the valve body (1), the separating piece (3) is arranged in the valve cavity (11), the power supply box (4) and the driving box (2) are arranged in a matched mode, and two groups of driving boxes (2) are arranged and are respectively arranged on the upper side and the lower side of the valve body (1); a liquid inlet (12) and a liquid outlet (13) are respectively arranged at two ends of the valve body (1), and the liquid inlet (12) and the liquid outlet (13) are communicated with the valve cavity (11); the valve cavity (11) is divided into two independent cavities by the separator (3), and a communicating cavity (31) is arranged in the separator (3); a moving rod (21) is arranged in the driving box (2), and a sealing piece is arranged on the moving rod (21) through a connecting rod (25); the separator (3) is correspondingly provided with a communication hole, and the sealing element is correspondingly inserted into the communication hole; a coil (22) is arranged in the driving box (2), and the coil (22) is arranged on the outer side of the moving rod (21) and is electrically connected with the power supply box (4); the end part of the driving box (2) is fixed with a fixed rod (28), the fixed rod (28) and the moving rod (21) are metal rods, the fixed rod and the moving rod are arranged oppositely, and a spring (24) is connected between the fixed rod and the moving rod.

2. The high-precision electromagnetic valve with good sealing performance as claimed in claim 1, wherein: the section of the separator (3) is of a square annular structure, and the communication cavity (31) is arranged on the inner side of the ring; the annular opposite corners of the separating piece (3) are respectively connected with the cavity wall of the valve cavity (11), and inclined guide surfaces (33) are arranged at the connecting parts.

3. The high-precision electromagnetic valve with good sealing performance as claimed in claim 1, wherein: the sealing elements are provided with two types, namely a first sealing element (26) in a circular truncated cone shape and a second sealing element (27) in a spherical shape; the two communicating holes are correspondingly arranged and are respectively a first communicating hole (34) in a circular truncated cone shape and a second communicating hole (35) in a hemispherical shape.

4. The high-precision electromagnetic valve with good sealing performance as claimed in claim 3, wherein: the thickness of the first sealing element (26) is one half of the depth of the first communication hole (34), and a sealing sleeve made of rubber materials is arranged on the outer side of the first sealing element (26).

5. The high-precision electromagnetic valve with good sealing performance as claimed in claim 3, wherein: the bottom of the second communicating hole (35) is hemispherical, and a through hole is arranged at the bottom of the second communicating hole and communicated with the communicating cavity (31); the radian of the spherical surface of the second sealing element (27) is the same as that of the second communication hole (35).

6. The high-precision electromagnetic valve with good sealing performance as claimed in claim 1, wherein: thickened parts (32) are respectively arranged on the upper side and the lower side of the separator (3), and the thickened parts (32) protrude into the communication cavity (31); the communication holes are respectively arranged at the thickened parts (32).

7. The high-precision electromagnetic valve with good sealing performance as claimed in claim 1, wherein: the fixed rod (28) is provided with a guide rod (23), the moving rod (21) is provided with a guide groove, the guide rod (23) penetrates through the guide groove, and the guide rod (23) is located on the inner side of the spring (24).

8. The high-precision electromagnetic valve with good sealing performance as claimed in claim 1, wherein: the moving rod (21) penetrates through the valve body (1), and a sealing ring is arranged at the connecting part of the moving rod and the valve body for sealing treatment.