CN217301813U

CN217301813U - Water medium electromagnetic change valve

Info

Publication number: CN217301813U
Application number: CN202220080361.1U
Authority: CN
Inventors: 牛壮; 赵宇峰
Original assignee: Wuxi Kairuide Fluid Technology Co ltd
Current assignee: Wuxi Kairuide Fluid Technology Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-08-26
Anticipated expiration: 2032-01-12

Abstract

The utility model provides an aqueous medium magenetic exchange valve, which comprises a valve body, be provided with the valve pocket in the valve body, be provided with first passageway, second passageway and third passageway in the valve body, install the case in the valve pocket, be provided with the fourth passageway in the case, both ends all are provided with the control part about the valve body, the control part can drive the case is in remove about in the valve pocket, drive the valve core through the control part and switch between the left position, meso position and right position, control path intercommunication or turn-off to make the aqueous medium stop or alternate direction of motion. The valve core adopts a split type structural design, and the wave spring is arranged between the sliding bush and the supporting piece to provide pretightening force, so that the first sealing platform on the sliding bush and the annular sealing platform on the sliding piece can be tightly attached to the inner wall of the valve cavity, and the sealing effect is ensured. The design of annular sealing platform can guarantee sealed effect when guaranteeing that second through-hole and first passageway are linked together, improves life.

Description

Water medium electromagnetic change valve

Technical Field

The utility model relates to an aqueous medium solenoid directional valve.

Background

Solenoid valves are electromagnetically controlled industrial devices, which are the basic elements of automation for controlling fluids, used in industrial control systems to regulate the direction, flow, velocity 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. However, in the hydraulic system, the water medium cannot provide enough lubrication effect to the oil liquid during the circulation process. When conventional electromagnetic directional valve is applied to a hydraulic system, the use effect cannot be guaranteed, the use effect is poor, and the service life is short.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is because aqueous medium can't provide sufficient lubricated effect to fluid equally at the circulation in-process. When conventional electromagnetic directional valve applied to hydraulic system, can't guarantee the result of use, the result of use is poor, and life is shorter, the utility model provides an above-mentioned problem is solved to aqueous medium electromagnetic directional valve.

The utility model provides a technical scheme that its technical problem adopted is: an aqueous medium electromagnetic directional valve comprises a valve body, wherein a valve cavity is arranged in the valve body, an oil return port is communicated on the valve cavity, a first channel is arranged at the top of the valve body, a second channel and a third channel are arranged at the bottom of the valve body, a valve core is arranged in the valve cavity, a fourth channel is arranged in the valve core, control parts are arranged at the left end and the right end of the valve body, the control parts can drive the valve core to move left and right in the valve cavity, and when the valve core is in a left position, the first channel is communicated with the second channel through the fourth channel; when the valve core is positioned at the middle position, the first channel, the second channel and the third channel are not communicated; when the valve core is in the right position, the first channel is communicated with the third channel through the fourth channel.

Further: the valve core comprises a sliding bush, a support piece and a sliding piece, wherein a stepped hole is formed in the sliding bush, a large-diameter section of the stepped hole is arranged upwards, the sliding piece is installed in the large-diameter section of the stepped hole, the support piece is arranged in a middle-diameter section of the stepped hole and is positioned between the sliding bush and the sliding piece, a wave spring is installed between the bottom of the middle-diameter section of the stepped hole and the support piece, and the deformation force of the wave spring can push the sliding bush and the support piece to be away from each other; a first through hole is formed in the sliding part along the vertical direction, a second through hole is formed in the supporting part along the vertical direction, and the first through hole, the second through hole and the small-diameter section of the stepped hole form a fourth channel; the bottom of sliding bush is provided with the bellied first seal platform downwards, the lower terminal surface of first seal platform is sealed the laminating and is in on the inner wall of valve pocket, the top of slider is provided with the bellied annular seal platform that makes progress, the annular seal platform sets up the outer lane of first through-hole, the up end of annular seal platform is sealed the laminating and is in on the inner wall of valve pocket.

Further: the control part is including installing the casing of valve body side, the working chamber of casing with install the end cap between the valve pocket, the one end fixed mounting of end cap is in the working chamber, other end fixed mounting in the valve pocket, on the end cap, be close to the one end of case is equipped with the mounting hole of indent, install second spring and ejector pad in the mounting hole, the deformation power of second spring can push away the ejector pad to the case direction removes, makes the case is in the meso position, the shape of ejector pad is the notch cuttype, the path portion court of ejector pad case one side sets up, be equipped with bellied spacing ka tai in the valve pocket, spacing ka tai will the restriction of the major diameter portion of ejector pad is in the outside.

Further: install armature in the working chamber of casing, on the armature, on the one side of being close to the valve body installs the push rod, be equipped with on the end cap with the guiding hole that the mounting hole communicates, push rod movable mounting in the guiding hole with in the hole of ejector pad, still be provided with the coil in the casing, the coil gets electric and can drive armature follows the working chamber moves to the centre for the push rod pushes away the case removes.

The beneficial effects of the utility model are that, the utility model discloses aqueous medium solenoid directional valve passes through control part drive valve core and switches between meso position and the right position at the left position, and control path intercommunication or shutoff to make aqueous medium stop or transform direction of motion. The valve core adopts a split type structural design, and the wave spring is arranged between the sliding bush and the supporting piece to provide pretightening force, so that the first sealing platform on the sliding bush and the annular sealing platform on the sliding piece can be tightly attached to the inner wall of the valve cavity, and the sealing effect is ensured. The design of annular sealing platform can guarantee sealed effect when guaranteeing that second through-hole and first passageway are linked together, improves life.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic structural diagram of the water medium electromagnetic directional valve of the present invention;

FIG. 2 is a schematic structural view of the valve cartridge;

fig. 3 is a schematic configuration diagram of the control section.

In the figure, 1, a valve body, 2, a first channel, 3, a second channel, 4, a third channel, 5, a valve core, 6, a fourth channel, 7, a control part, 8, a sliding bush, 9, a support part, 10, a sliding part, 11, a wave spring, 12, a first through hole, 13, a second through hole, 14, a small-diameter section, 15, a first sealing platform, 16, an annular sealing platform, 20, a shell, 21, a working cavity, 22, a plug, 23, a mounting hole, 24, a second spring, 25, a push block, 26, a limiting clamping platform, 27, an armature, 28, a push rod, 29 and a coil.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

As shown in fig. 1, the utility model provides an aqueous medium electromagnetic directional valve, including valve body 1, be provided with the valve pocket in the valve body 1, the intercommunication has the oil return opening on the valve pocket, the top of valve body 1 is provided with first passageway 2, and the bottom is provided with second passageway 3 and third passageway 4, install case 5 in the valve pocket, be provided with fourth passageway 6 in the case 5, the left and right ends of valve body 1 all are provided with control part 7, control part 7 can drive case 5 remove about in the valve pocket, when case 5 is in the left position, first passageway 2 with second passageway 3 is through fourth passageway 6 is linked together; when the valve core 5 is positioned at the middle position, the first channel 2, the second channel 3 and the third channel 4 are not communicated with each other; when the valve core 5 is in the right position, the first channel 2 is communicated with the third channel 4 through the fourth channel 6.

The valve core 5 is driven by the control part 7 to switch between a left position, a middle position and a right position, and the control passage is communicated or closed, so that the aqueous medium stops or changes the movement direction.

Referring to fig. 2, the valve core 5 includes a sliding bush 8, a support 9, and a sliding member 10, a stepped hole is provided in the sliding bush 8, a large diameter section of the stepped hole is disposed upward, the sliding member 10 is installed in the large diameter section of the stepped hole, the support 9 is disposed in a middle diameter section of the stepped hole and located between the sliding bush 8 and the sliding member 10, a wave spring 11 is installed between the bottom of the middle diameter section of the stepped hole and the support 9, and a deformation force of the wave spring 11 can push the sliding bush 8 and the support 9 away from each other; a first through hole 12 is formed in the sliding part 10 along the vertical direction, a second through hole 13 is formed in the supporting part 9 along the vertical direction, and the first through hole 12, the second through hole 13 and the small-diameter section 14 of the stepped hole form a fourth channel 6; the bottom of the sliding bush 8 is provided with a first sealing platform 15 protruding downwards, the lower end face of the first sealing platform 15 is in sealing fit with the inner wall of the valve cavity, the top of the sliding piece 10 is provided with an annular sealing platform 16 protruding upwards, the annular sealing platform 16 is arranged on the outer ring of the first through hole 12, and the upper end face of the annular sealing platform 16 is in sealing fit with the inner wall of the valve cavity.

The valve core 5 adopts a split structure design, and a wave spring 11 is arranged between the sliding bush 8 and the supporting piece 9 to provide pretightening force, so that the first sealing platform 15 on the sliding bush 8 and the annular sealing platform 16 on the sliding piece 10 can be attached to the inner wall of the valve cavity in a sealing manner, and the sealing effect is ensured. The design of the annular sealing table 16 ensures that the second through hole 13 is communicated with the first channel 2, and simultaneously ensures the sealing effect.

Referring to fig. 3, the control portion 7 includes a housing 20 installed at the side end of the valve body 1, a plug 22 is installed between a working cavity 21 of the housing 20 and the valve cavity, one end of the plug 22 is fixedly installed in the working cavity 21, the other end of the plug is fixedly installed in the valve cavity, an inward-concave installation hole 23 is formed in one end, close to the valve core 5, of the plug 22, a second spring 24 and a push block 25 are installed in the installation hole 23, deformation force of the second spring 24 can push the push block 25 to move towards the direction of the valve core 5, so that the valve core 5 is located in a middle position, the push block 25 is in a step shape, a small diameter portion of the push block 25 faces towards one side of the valve core 5, a raised limit block 26 is arranged in the valve cavity, and the limit block 26 limits a large diameter portion of the push block 25 to the outside.

An armature 27 is installed in the working cavity 21 of the housing 20, a push rod 28 is installed on one side, close to the valve body 1, of the armature 27, a guide hole communicated with the installation hole 23 is formed in the plug 22, the push rod 28 is movably installed in the guide hole and an inner hole of the push block 25, a coil 29 is further arranged in the housing 20, and the coil 29 is electrified to drive the armature 27 to move towards the middle along the working cavity 21, so that the push rod 28 pushes the valve core 5 to move.

When the valve core 5 is in work, when the control parts 7 at the two ends are all powered off, the pushing blocks 25 at the two sides push the valve core 5 under the action of the second spring 24, so that the valve core 5 is positioned at a middle position, and the moving range of the pushing blocks 25 can be limited by the design of the limiting clamping table 26, so that the position repeatability of the middle position is ensured. When the control part 7 at the left end is powered on, the armature 27 drives the push rod 28 to move to the right under the action of the magnetic field generated by the coil 29, and pushes the valve core 5 to overcome the deformation force of the spring at the right side, so that the valve core 5 moves to the right position.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an aqueous medium solenoid directional valve, includes valve body (1), be provided with the valve pocket in valve body (1), the intercommunication has oil return opening, its characterized in that on the valve pocket: the valve comprises a valve body (1), and is characterized in that a first channel (2) is arranged at the top of the valve body (1), a second channel (3) and a third channel (4) are arranged at the bottom of the valve body, a valve core (5) is installed in the valve cavity, a fourth channel (6) is arranged in the valve core (5), control parts (7) are arranged at the left end and the right end of the valve body (1), the control parts (7) can drive the valve core (5) to move left and right in the valve cavity, and when the valve core (5) is at the left position, the first channel (2) is communicated with the second channel (3) through the fourth channel (6); when the valve core (5) is positioned at the middle position, the first channel (2), the second channel (3) and the third channel (4) are not communicated with each other; when the valve core (5) is in the right position, the first channel (2) is communicated with the third channel (4) through the fourth channel (6).

2. The aqueous medium electromagnetic directional valve according to claim 1, characterized in that: the valve core (5) comprises a sliding bush (8), a support piece (9) and a sliding piece (10), a stepped hole is formed in the sliding bush (8), a large-diameter section of the stepped hole is arranged upwards, the sliding piece (10) is installed in the large-diameter section of the stepped hole, the support piece (9) is arranged in a middle-diameter section of the stepped hole and is located between the sliding bush (8) and the sliding piece (10), a wave spring (11) is installed between the bottom of the middle-diameter section of the stepped hole and the support piece (9), and deformation force of the wave spring (11) can push the sliding bush (8) and the support piece (9) to be far away from each other;

a first through hole (12) is formed in the sliding part (10) along the vertical direction, a second through hole (13) is formed in the supporting part (9) along the vertical direction, and the first through hole (12), the second through hole (13) and the small-diameter section (14) of the stepped hole form a fourth channel (6);

the bottom of sliding bush (8) is provided with first sealing platform (15) protruding downwards, the lower terminal surface of first sealing platform (15) is sealed to be laminated on the inner wall of valve chamber, the top of slider (10) is provided with bellied annular sealing platform (16) that makes progress, annular sealing platform (16) set up the outer lane of first through-hole (12), the up end of annular sealing platform (16) is sealed to be laminated on the inner wall of valve chamber.

3. The aqueous medium electromagnetic directional valve according to claim 1, characterized in that: the control part (7) comprises a shell (20) arranged at the side end of the valve body (1), a plug (22) is arranged between a working cavity (21) of the shell (20) and the valve cavity, one end of the plug (22) is fixedly arranged in the working cavity (21), the other end of the plug is fixedly arranged in the valve cavity, an inwards concave mounting hole (23) is formed in one end, close to the valve core (5), of the plug (22), a second spring (24) and a push block (25) are arranged in the mounting hole (23), the deformation force of the second spring (24) can push the push block (25) to move towards the direction of the valve core (5), so that the valve core (5) is in a middle position, the push block (25) is in a step shape, the small-diameter part of the push block (25) is arranged towards one side of the valve core (5), and a raised limit clamping table (26) is arranged in the valve cavity, the limiting clamping table (26) limits the large-diameter part of the push block (25) to the outer side.

4. The aqueous medium electromagnetic directional valve according to claim 3, characterized in that: install armature (27) in working chamber (21) of casing (20), on armature (27), be close to push rod (28) are installed to one side of valve body (1), be equipped with on end cap (22) with the guiding hole that mounting hole (23) are linked together, push rod (28) movable mounting in the guiding hole with in the hole of ejector pad (25), still be provided with coil (29) in casing (20), coil (29) are electrified can drive armature (27) are followed working chamber (21) are to the centre and are removed, make push rod (28) top push valve core (5) remove.