CN210196613U - Multi-sealing high-speed electromagnetic valve - Google Patents

Abstract

The utility model discloses a multiple sealed high-speed solenoid valve, its structure is: the valve body left insert block and the valve body right insert block are connected to form a valve body main body, an end cover is fixed on one side of the valve body left insert block, and a spring cover is fixed on one side of the valve body right insert block; a valve sleeve is arranged in the inner cavity of the valve body main body, a valve core is arranged in the valve sleeve, one side of the valve core, which is positioned on the right insert block of the valve body, is connected with an armature, and the armature is matched with the sucker type electromagnet; the valve core is sleeved with a spring, and one end of the spring is tightly attached to the spring cover. The utility model discloses high-speed solenoid valve has increased the leakproofness that the cylinder is sealed under high oil feed pressure condition, can also effectively reduce to leak and guarantee higher response speed.

Description

Multi-sealing high-speed electromagnetic valve

Technical Field

The utility model relates to a solenoid valve field specifically is a multiple sealed high-speed solenoid valve, two-position two-way direct acting valve with high response speed.

Background

Electromagnetic valves (Electromagnetic valves) are electromagnetically controlled industrial devices, are basic automation elements for controlling fluids, belong to actuators, are not limited to hydraulic pressure and pneumatic pressure, and are used in industrial control systems to adjust the direction, flow rate, speed and other parameters of media. The solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured. There are many types of solenoid valves, with different solenoid valves functioning at different locations in the control system, the most common being one-way valves, safety valves, directional control valves, speed control valves, etc.

The traditional electromagnetic valve is internally provided with a closed cavity, through holes are formed in different positions, each hole is connected with different oil pipes, a piston is arranged in the middle of the cavity, two electromagnets are arranged on two sides of the cavity, a magnet coil on which side is electrified to attract a valve body, different oil discharge holes are opened or closed by controlling the movement of the valve body, an oil inlet hole is normally opened, hydraulic oil enters different oil discharge pipes, then the piston of an oil cylinder is pushed by the pressure of the oil, the piston drives a piston rod, and the piston rod drives a mechanical device; thus, the mechanical movement is controlled by controlling the current on-off of the electromagnet.

At present, there are many kinds of high-speed electromagnetic valves on the market, such as schneider series servo valves, which can ensure high response speed and low leakage, but the required precision requirement and processing level between the valve core and the valve hole are hard to reach by most domestic manufacturers, which also results in extremely high manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a multi-sealing high-speed electromagnetic valve, which can increase the sealing performance of the cylindrical surface under the condition of high oil inlet pressure, effectively reduce leakage and ensure higher response speed; the high-speed electromagnetic valve adopts cylindrical surface sealing instead of conical surface sealing, and compared with a conical surface, the high-speed electromagnetic valve is small in processing difficulty and low in cost; and moreover, the cylindrical surface sealing can have better ductility, and a new oil way is convenient to add.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a multi-seal high-speed electromagnetic valve comprises a left valve body insert block and a right valve body insert block, wherein the left valve body insert block and the right valve body insert block are connected to form a valve body main body; a valve sleeve is arranged in the inner cavity of the valve body main body, a valve core is arranged in the valve sleeve, one side of the valve core, which is positioned on the right insert block of the valve body, is connected with an armature, and the armature is matched with the sucker type electromagnet; a spring is sleeved on the valve core, and one end of the spring is tightly attached to the spring cover;

wherein, the structure of the left insert block of the valve body is: the main body of the oil drain valve is a cuboid, a cylindrical expenditure section is arranged on one side of the cuboid, the left valve body inserting block is provided with a first cavity penetrating through the left valve body inserting block, and the left valve body inserting block is also provided with a first mounting hole, a first oil drain storage chamber connecting port and a first oil outlet; the first oil outlet is communicated with the first cavity and the outer surface of the left insert block of the valve body, and the first oil drainage storage chamber connecting port is positioned in and penetrates through the cylindrical body expenditure section;

the structure of the valve body right insert block is as follows: the valve body right insert block is provided with a second cavity, a second annular groove cavity, a second oil inlet, a second oil drainage storage chamber connecting port, a second oil drainage port and a second mounting hole; the second cavity and the second annular groove cavity jointly form a cavity penetrating through the right insert block of the valve body, and the aperture of the second annular groove cavity is larger than that of the second cavity; the second oil drainage storage chamber connecting port is a through hole penetrating through the right insert block of the valve body, the second oil inlet is communicated with the second annular groove cavity and the outer surface of the right insert block of the valve body, and the second oil drainage port is communicated with the second cavity and the outer surface of the right insert block of the valve body;

the structure of the valve sleeve is as follows: the valve sleeve is provided with a third cavity axially penetrating through the valve sleeve, and a third oil outlet, a third oil drainage notch, a third oil inlet notch and a third oil drainage port are sequentially distributed on the valve sleeve;

the structure of the valve core is as follows: the valve core is sequentially provided with a guide section, a short connecting section, a sealing guide section and a long connecting section, and the valve core is provided with an axial oil duct axially penetrating through the valve core; the guide section, the sealing section and the sealing guide section are all cylinders with equal diameters, the sealing guide section is provided with a cross guide part close to the sealing section, and the long connecting section is provided with a fourth oil drainage port and a fourth positioning pin hole; the fourth oil drainage port is communicated with the axial oil passage and the outer surface of the long connecting section;

one side of the armature iron is a circular truncated cone which is matched with the sucker type electromagnet, the other side of the armature iron is a hollow cylinder, a valve core matching cavity is formed in the other side of the armature iron, and the valve core matching cavity is used for being connected with a long connecting section of the valve core; a seventh positioning pin hole on the hollow cylinder at one side of the armature is communicated with a fourth positioning pin hole on the valve core;

when the left valve body inserting block is connected with the right valve body inserting block, a second oil drainage storage chamber connecting port on the right valve body inserting block is communicated with a first oil drainage storage chamber connecting port on the left valve body inserting block, and at the moment, a first cavity of the left valve body inserting block is matched with a second cavity of the right valve body inserting block to form an annular oil chamber; a third oil drainage port on the valve sleeve is communicated with a second oil drainage port of the right insert block of the valve body, a third oil inlet notch on the valve sleeve is communicated with the annular oil chamber, and a third oil drainage notch of the valve sleeve is communicated with a first oil drainage storage chamber connecting port of the left insert block of the valve body;

one side, close to the guide section, of the sealing section of the valve core is matched with one side, close to the third oil outlet, of the third oil drainage groove opening of the valve sleeve to form a second sealing surface, and one side, provided with a cross guide, of the sealing guide section of the valve core is matched with one side, close to the third oil drainage groove opening, of the third oil inlet groove opening of the valve sleeve to form a first sealing surface; and the fourth oil drainage port of the valve core is communicated with the third oil drainage port of the valve sleeve.

Furthermore, the left valve body inserting block and the right valve body inserting block are positioned through the seam allowance.

Furthermore, a second oil inlet of the right insertion block of the valve body is a threaded hole, and the central axis of the second oil inlet is perpendicular to the central axis of the second annular groove cavity and close to one side of the second mounting hole.

Furthermore, the central axis of a second oil drainage port of the right insert block of the valve body is perpendicular to the central axis of the second mounting hole and is parallel to the central axis of the connecting port of the second oil drainage storage chamber.

Furthermore, two sealing ring grooves are formed in the valve sleeve and located on two sides of the third oil drainage groove opening, a sealing ring is arranged between the valve sleeve and the valve body main body, and the sealing ring is installed in the sealing ring grooves.

Further, on the valve sleeve, the central axis of the third oil outlet is perpendicular to the central axis of the third oil drainage port.

Furthermore, a fifth oil discharge port is arranged on the end cover, the fifth oil discharge port is a threaded through hole, and the central axis of the fifth oil discharge port is coincident with the central axis of the end cover; the fifth oil discharge port is communicated with the axial oil duct of the valve core, and the end cover and the left valve body inserting block are positioned through the seam allowance.

Furthermore, the armature and the sucker type electromagnet are arranged in the electromagnet shell, and the electromagnet shell comprises an electromagnet shell connecting section connected with the right insertion block of the valve body and an electromagnet shell main body section at the rear end; the electromagnet shell main body section is provided with an observation groove, an electromagnet installation cavity and an electromagnet positioning hole.

Furthermore, a gasket is arranged between the spring and the spring cover and used for adjusting the pretightening force of the spring.

Furthermore, a gasket is arranged between the end cover and the left insert block of the valve body and is used for adjusting the sealing length of two axial sealing surfaces of the valve core.

Compared with the prior art, the utility model has the advantages that: the cylindrical surface sealing mode is adopted, so that the arrangement of a new oil port is convenient, and the valve is different from a single switch valve adopting conical surface sealing; the cylindrical surface sealing has better sealing effect under the same precision, and the leakage is reduced while the cost is reduced; the design of the sealing surfaces can reduce the axial sealing length of a single sealing surface, shorten the opening and closing stroke of the valve core, namely reduce the gap value between the armature and the electromagnet, thereby reducing the magnetic leakage, increasing the induced electromagnetic force and greatly improving the response speed; the design of the annular oil chamber on the valve body can reduce the oil filling time and ensure that the oil inlet amount is enough in unit time.

Drawings

Fig. 1 is a schematic view of the overall structure of a multiple-sealing high-speed solenoid valve of the present invention;

FIG. 2 is a schematic structural view of a left insert block of a valve body in the solenoid valve of the present invention;

FIG. 3 is a schematic structural view of a right insert block of the valve body in the solenoid valve of the present invention;

fig. 4 is a schematic structural view of a valve sleeve in the electromagnetic valve of the present invention;

fig. 5 is a schematic structural view of a valve core in the electromagnetic valve of the present invention;

fig. 6 is a schematic structural view of the end cap of the electromagnetic valve of the present invention;

fig. 7 is a schematic structural view of a spring cover in the solenoid valve of the present invention;

fig. 8 is a schematic diagram of the structure of the armature in the solenoid valve of the present invention;

fig. 9 is a schematic view of the structure of the housing of the electromagnet in the electromagnetic valve of the present invention.

In the figure: 1-end cap; 2-left insert block of valve body; 3-right valve body insert block; 4-electromagnet housing connection section; 5-the main body section of the electromagnet shell; 6-a sucker type electromagnet; 7-an armature; 8-a spring cover; 9-a spring; 10-a valve core; 11-a valve housing;

valve body left side inserted block structure: 12-a first mounting hole; 13-a first cavity; 14-a first oil drainage storage chamber connecting port; 15-a first oil outlet;

valve body right side inserted block structure: 16-a second cavity; 17-a second oil inlet; 18-a second mounting hole; 19-a second annular groove cavity; 20-a second oil drainage storage chamber connecting port; 21-a second oil drainage port;

the valve sleeve structure: 22-a third oil outlet; 23-sealing ring groove; 24-a third oil inlet slot; 25-a third cavity; 26-a third oil drainage port; 27-a third drainage notch;

the valve core structure: 28-axial oil passage; 29-a guide section; 30-short connecting section; 31-a sealing section; 32-a sealing guide section; 33-a fourth oil drainage port; 34-long connecting section; 35-a fourth dowel hole;

other structures: 36-a fifth oil discharge port; 37-a fifth mounting hole; 38-sixth mounting hole; 39-spool pilot bore; 40-valve core matching cavity; 41-a seventh registration pin hole; 42-axial air holes; 43-electromagnet installation cavity; 44-observation tank; 45-electromagnet installation cavity; 46-electromagnet positioning hole.

Description of the drawings: identical or functionally similar parts are distinguished, for example, "first" denotes the part provided on the left insert of the valve body, "second" denotes the part provided on the right insert of the valve body, "third" denotes the part provided on the valve sleeve, "fourth" denotes the part provided on the valve core, etc.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model relates to a multiple sealing high-speed solenoid valve, as shown in figure 1, comprising an oil path on-off mechanism and a driving mechanism, wherein the oil path on-off mechanism comprises a valve body (a left valve body insert block 2, a right valve body insert block 3, etc.), a valve sleeve 11, a valve core 10 and an end cover 1; the valve body is composed of a left valve body insert block 2 and a right valve body insert block 3 which can be positioned through a spigot.

As shown in fig. 2, the left insert block 2 of the valve body can be divided into a large end and a small end, wherein the large end is cuboid, the small end is cylindrical, and the central axis of the small end is superposed with the centers of the upper end surface and the lower end surface of the cuboid; the left insert block 2 of the valve body is provided with a first mounting hole 12, and the first mounting hole 12 is coaxial with the small-end cylinder and is a through hole; the left insert block 2 of the valve body is provided with a first cavity 13, and the first cavity 13 is also provided with a first oil outlet 15 and a first oil drainage storage chamber connecting port 14 from left to right; the outer edge of the first mounting hole 12 is communicated with the side surface of one large end of the left insert block 2 of the valve body through a first oil outlet 15; the first oil drainage storage chamber connecting port 14 is a cylindrical through hole at a small end, and the central axis of the first oil drainage storage chamber connecting port is perpendicular to the central axis of the first oil outlet 15 and the central axis of the first mounting hole 12 in pairs.

As shown in fig. 3, the valve body right insert block 3 is a cuboid, the valve body right insert block 3 has a concentric stepped through hole (including a second cavity 16 and a second annular groove cavity 19) penetrating through it, and the aperture of the second annular groove cavity 19 is larger than that of the second cavity 16; a second oil drainage storage chamber connecting port 20, a second oil inlet 17 and a second oil drainage port are also formed in the concentric stepped through hole from left to right; the second oil drainage storage chamber connecting port 20 is a cylindrical threaded through hole which penetrates through the left side surface and the right side surface of the right insertion block 3 of the valve body; the second oil inlet 17 is a threaded hole, the central axis of the second oil inlet is perpendicular to the central axis of the second annular groove cavity 19 and is positioned on one side close to the second mounting hole 18, and the outer edge of the second annular groove cavity 19 is communicated with the rear side surface of the right insert block 3 of the valve body; the central axis of the second drain port 21 is perpendicular to the central axis of the second mounting hole 18 and parallel to the central axis of the second drain reservoir connection port 20, and communicates the outer edge of the second mounting hole 18 with the right side surface of the valve body right insert block 3. When the left valve body inserting block 2 and the right valve body inserting block 3 are connected, the second oil drainage storage chamber connecting port 20 on the right valve body inserting block 3 is communicated with the first oil drainage storage chamber connecting port 14 on the left valve body inserting block 2, and at the moment, the first cavity 13 of the left valve body inserting block 2 and the second cavity 16 of the right valve body inserting block 3 are matched to form an annular oil chamber.

As shown in fig. 4, the valve housing 11 is a hollow cylinder, and is further provided with a third oil outlet 22, a third oil drainage notch 27, a third oil inlet 24 and a third oil drainage port 26 in sequence from left to right; the hollow part of the inner ring of the valve sleeve 11 is a valve core matching cavity, and the diameter of the hollow part is the same as the maximum outer edge diameter of the valve core 10; the central axis of the third oil outlet 22 is perpendicular to the central axis of the third oil drainage port 26, and both the third oil outlet 22 and the third oil drainage port 26 are not through holes; the third oil drainage notch 27 and the third oil inlet notch 24 are formed by milling, the milling directions are perpendicular to the central axis of the valve sleeve 11, the milling direction of the third oil inlet notch 24 is parallel to the central axis of the third oil drainage port 26, and the milling direction of the third oil drainage notch 27 is perpendicular to the central axis of the third oil drainage port 26; in addition, the third oil drainage port 26 is communicated with the second oil drainage port 21 of the valve body right insert block 3, the third oil inlet groove port 24 is communicated with the annular oil chamber, and the third oil drainage notch 27 is communicated with the second oil drainage reservoir connecting port 20.

As shown in fig. 5, the working surface of the valve core 10 can be divided into five sections in the axial direction, which are a guide section 29, a short connecting section 30, a sealing section 31, a sealing guide section 32 and a long connecting section 34 from left to right; the guide section 29, the sealing section 31 and the sealing guide section 32 are all cylinders with equal diameters, the guide section 29 and the sealing section 31 are shorter, the sealing guide section 32 is longer, and cross guide is performed on one side of the sealing guide section 32 close to the sealing section 31; one side of the sealing section 31 of the valve core 10, which is close to the guide section 29, is matched with one side of the third oil drainage notch 27 of the valve sleeve 11, which is close to the third oil outlet 22, to form a second sealing surface, and one side of the sealing guide section 32 of the valve core 10, which is provided with a cross guide, is matched with one side of the third oil inlet notch 24 of the valve sleeve 11, which is close to the third oil drainage notch 27, to form a first sealing surface; in addition, the valve core 10 is provided with an axial oil passage 28, and the central axis of the axial oil passage 28 coincides with the central axis of the valve core 10 and is a through hole; a fourth positioning pin hole 35 and a fourth oil drainage port 33 are further formed in the axial oil passage 28 from left to right and are located in the long connecting section 34, meanwhile, the central axis of the fourth positioning pin hole 35 is parallel to the central axis of the fourth oil drainage port 33, and the fourth positioning pin hole 35 is a through hole; the fourth oil release port 33 communicates the outer edge of the axial oil passage 28 with the outer surface of the long connecting section 34, and communicates with the third oil release port 26 of the valve housing 11.

As shown in fig. 6, the end cap 1 can be divided into a large end and a small end, and the large end and the small end are both cylinders; the end cover 1 is provided with a fifth oil discharge port 36, the fifth oil discharge port 36 is a threaded through hole, the central axis of the fifth oil discharge port 36 coincides with the central axis of the end cover 1, the fifth oil discharge port 36 is communicated with the axial oil duct 28 of the valve core 10, and the end cover 1 and the left valve body insert block 2 are positioned through a spigot.

As shown in fig. 7 to 9, the driving mechanism includes an armature 7, a suction cup type electromagnet 6, a spring 9, an electromagnet housing, and a spring cover 8; the armature 7 can be divided into a large end and a small end, the small end is a hollow cylinder and is in a circular truncated cone shape, the central axis of the large end is matched with the central axis of the small end, the diameter of the periphery of the outer edge of the large end needs to be the same as that of the outer circumference of the electromagnet, the hollow part of the small end is a valve core matching cavity 40, and the diameter of the outer edge of the hollow part of the small end is the same as that of the outer edge of the long connecting section 34 of the valve; the armature 7 is provided with an axial air hole 42 and a seventh positioning pin hole 41, the axial air hole 42 is a through hole which is positioned at the large end and close to the outer edge, the central axis of the through hole is parallel to the central axis of the large end, and the number of the axial air holes 42 is determined by requirements; the seventh registration pin hole 41 is a through hole located at the small end, the central axis of which is perpendicular to the central axis of the small end, and it is fitted with the fourth registration pin hole 35 of the valve body 10.

The electromagnet shell is composed of a cuboid and a cylinder, the upper surface and the lower surface of the cuboid are in a square shape, the diameter of the outer edge of the cylinder is smaller than the length and width of the square on the upper surface and the lower surface, and the central axis of the cylinder is perpendicular to the upper surface and the lower surface of the cuboid and passes through the centers of the upper surface and the lower surface; taking the rectangular end as the start, the electromagnet installation cavity 43 and the electromagnet positioning hole 46 are respectively arranged from left to right; the electromagnet shell is also provided with an observation groove 44, and the width and the thickness of the observation groove are the shortest distances from the outer edge of the cuboid to the outer edge of the electromagnet installation cavity 43; the spring cover 8 is cylindrical in shape, and is provided with a valve core guide hole 39 which is matched with the long connecting section 34, and the diameter of the hole is the same as the diameter of the outer edge of the long connecting section 34.

The electromagnet selected by the utility model is of an annular sucker structure, the appearance of the electromagnet is cylindrical, and the side of the round surface opposite to the sucker is provided with a threaded hole which is matched with the electromagnet positioning hole 46 on the electromagnet shell; the utility model discloses the device still must include solenoid valve controlling means, and it is used for sending the control signal of break-make oil circuit to the solenoid valve.

The spring 9 is positioned between one side, far away from the sealing section 31, of the sealing guide section 32 of the valve core 10 and the spring cover 8, and an adjusting gasket is required to be additionally arranged between the spring 9 and the spring cover 8 to adjust the pretightening force of the spring 9; and a sealing ring is arranged between the valve sleeve 11 and the valve body main body, the position is between the third oil outlet 22 and the third oil drainage groove opening 27, and between the third oil drainage groove opening 27 and the third oil inlet groove opening 24, and the upper opening and the lower opening of the valve body oil drainage storage chamber are sealed by bolts during working. An adjusting gasket can be added between the end cover 1 and the left insert block 2 of the valve body to adjust the sealing length of two axial sealing surfaces of the valve core 10. An adjusting gasket can be added between the magnet mounting shell and the valve body to adjust the stroke of the valve core. End cover 1, the left inserted block 2 of valve body, electromagnet housing and spring cap 8 all are equipped with the non-screw thread through-hole that is used for connecting by the outer fringe side, all are equipped with the screw hole on the surface about the right inserted block 3 of valve body, in order to guarantee the leakproofness, can install the sealing washer additional between the fitting surface of the left inserted block 2 of valve body and the right inserted block 3 of valve body.

Claims (10)

1. The multi-seal high-speed electromagnetic valve is characterized by comprising a left valve body inserting block (2) and a right valve body inserting block (3), wherein the left valve body inserting block (2) and the right valve body inserting block (3) are connected to form a valve body main body, an end cover (1) is fixed on one side of the left valve body inserting block (2), and a spring cover (8) is fixed on one side of the right valve body inserting block (3); a valve sleeve (11) is arranged in the inner cavity of the valve body main body, a valve core (10) is arranged in the valve sleeve (11), the valve core (10) is positioned on one side of the valve body right insert block (3) and is connected with an armature (7), and the armature (7) is matched with the sucker type electromagnet (6); a spring (9) is sleeved on the valve core (10), and one end of the spring (9) is tightly attached to the spring cover (8);

wherein, the structure of the left insert block (2) of the valve body is as follows: the main body of the oil drain valve is a cuboid, a cylindrical expenditure section is arranged on one side of the cuboid, the left valve body inserting block (2) is provided with a first cavity (13) penetrating through the left valve body inserting block, and the left valve body inserting block (2) is further provided with a first mounting hole (12), a first oil drain storage chamber connecting port (14) and a first oil outlet (15); the first oil outlet (15) is communicated with the first cavity (13) and the outer surface of the left insert block (2) of the valve body, and the first oil drainage storage chamber connecting port (14) is positioned on and penetrates through the cylindrical expenditure section;

the structure of the valve body right insert block (3) is as follows: the valve body right insert block (3) is provided with a second cavity (16), a second annular groove cavity (19), a second oil inlet (17), a second oil drainage storage chamber connecting port (20), a second oil drainage port (21) and a second mounting hole (18); the second cavity (16) and the second annular groove cavity (19) jointly form a cavity penetrating through the right insert block (3) of the valve body, and the aperture of the second annular groove cavity (19) is larger than that of the second cavity (16); the second oil drainage storage chamber connecting port (20) is a through hole penetrating through the right valve body inserting block (3), the second oil inlet (17) is communicated with the second annular groove cavity (19) and the outer surface of the right valve body inserting block (3), and the second oil drainage port (21) is communicated with the second cavity (16) and the outer surface of the right valve body inserting block (3);

the structure of the valve sleeve (11) is as follows: the main body of the valve sleeve is a hollow cylinder, the valve sleeve (11) is provided with a third cavity (25) axially penetrating through the valve sleeve, and a third oil outlet (22), a third oil drainage notch (27), a third oil inlet notch (24) and a third oil drainage port (26) are sequentially distributed on the valve sleeve (11);

the structure of the valve core (10) is as follows: the valve core is sequentially provided with a guide section (29), a short connecting section (30), a sealing section (31), a sealing guide section (32) and a long connecting section (34), and the valve core (10) is provided with an axial oil passage (28) which axially penetrates through the valve core; the guide section (29), the sealing section (31) and the sealing guide section (32) are all cylinders with equal diameters, a cross guide is arranged at the position, close to the sealing section (31), of the sealing guide section (32), and a fourth oil drainage port (33) and a fourth positioning pin hole (35) are arranged on the long connecting section (34); the fourth oil drainage port (33) is communicated with the axial oil passage (28) and the outer surface of the long connecting section (34);

one side of the armature iron (7) is a circular truncated cone which is matched with the sucker type electromagnet (6) to act, the other side of the armature iron is a hollow cylinder, a valve core matching cavity (40) is formed in the other side of the armature iron, and the valve core matching cavity (40) is used for being connected with a long connecting section (34) of the valve core (10); a seventh positioning pin hole (41) on the hollow cylinder at one side of the armature (7) is communicated with a fourth positioning pin hole (35) on the valve core (10);

when the left valve body inserting block (2) is connected with the right valve body inserting block (3), a second oil drainage storage chamber connecting port (20) on the right valve body inserting block (3) is communicated with a first oil drainage storage chamber connecting port (14) on the left valve body inserting block (2), and at the moment, a first cavity (13) of the left valve body inserting block (2) is matched with a second cavity (16) of the right valve body inserting block (3) to form an annular oil chamber; a third oil drainage port (26) on the valve sleeve (11) is communicated with a second oil drainage port (21) of the valve body right insert block (3), a third oil inlet notch (24) on the valve sleeve (11) is communicated with the annular oil chamber, and a third oil drainage notch (27) of the valve sleeve (11) is communicated with a first oil drainage storage chamber connecting port (14) of the valve body left insert block (2);

one side, close to a guide section (29), of a sealing section (31) of the valve core (10) is matched with one side, close to a third oil outlet (22), of a third oil drainage notch (27) of the valve sleeve (11) to form a second sealing surface, and one side, close to the third oil drainage notch (27), of the sealing guide section (32) of the valve core (10) is provided with a cross guide to form a first sealing surface in a matched mode with one side, close to the third oil drainage notch (27), of a third oil inlet notch (24) of the valve sleeve (11); and a fourth oil drainage port (33) of the valve core (10) is communicated with a third oil drainage port (26) of the valve sleeve (11).

2. A multiple seal high speed solenoid valve according to claim 1 wherein the valve body left insert (2) and valve body right insert (3) are positioned by a spigot.

3. The multiple-seal high-speed electromagnetic valve according to claim 1, wherein the second oil inlet (17) of the right insert block (3) of the valve body is a threaded hole, and the central axis of the threaded hole is perpendicular to the central axis of the second annular groove cavity (19) and is close to one side of the second mounting hole (18).

4. A multiple seal high speed solenoid valve according to claim 1 wherein the central axis of the second drain port (21) of the valve body right insert (3) is perpendicular to the central axis of the second mounting hole (18) and parallel to the central axis of the second drain reservoir connection port (20).

5. A multiple-sealing high-speed electromagnetic valve according to claim 1, wherein two sealing ring grooves (23) are further provided on the valve housing (11), the two sealing ring grooves (23) are located on both sides of the third oil drain notch (27), and a sealing ring is provided between the valve housing (11) and the valve body, and the sealing ring is installed in the sealing ring groove (23).

6. A multiple-seal high-speed solenoid valve according to claim 1, characterized in that on the valve housing (11), the central axis of said third oil outlet (22) and the central axis of said third oil drain (26) are mutually perpendicular.

7. The multiple-seal high-speed electromagnetic valve according to claim 1, wherein a fifth oil discharge port (36) is arranged on the end cover (1), and the fifth oil discharge port (36) is a threaded through hole, and the central axis of the fifth oil discharge port coincides with the central axis of the end cover (1); the fifth oil discharge port (36) is communicated with the axial oil duct (28) of the valve core (10), and the end cover (1) and the left valve body inserting block (2) are positioned through a spigot.

8. The multiple-seal high-speed electromagnetic valve according to claim 1, characterized in that the armature (7) and the sucker type electromagnet (6) are arranged in an electromagnet housing, and the electromagnet housing comprises an electromagnet housing connecting section (4) connected with the valve body right insert block (3) and an electromagnet housing main body section (5) at the rear end; the electromagnet shell main body section (5) is provided with an observation groove (44), an electromagnet installation cavity (45) and an electromagnet positioning hole (46).

9. A multiple-seal high-speed electromagnetic valve according to claim 1, characterized in that a gasket is provided between the spring (9) and the spring cover (8) for adjusting the pre-load of the spring (9).

10. A multi-seal high-speed electromagnetic valve according to claim 1, characterized in that a gasket is added between the end cover (1) and the left insert block (2) of the valve body for adjusting the sealing length of two axial sealing surfaces of the valve core (10).

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