CN210266084U

CN210266084U - Pilot-operated type electromagnetic valve

Info

Publication number: CN210266084U
Application number: CN201920898270.7U
Authority: CN
Inventors: 田伟
Original assignee: Fuyang Xinda Hydraulic Machinery Co ltd
Current assignee: Fuyang Xinda Hydraulic Machinery Co ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-04-07
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a guide's formula solenoid valve relates to the solenoid valve field, which comprises a valve body, the lower surface middle part fixedly connected with fixing device of valve body, one side of fixing device is equipped with the sealed lid of filter, the fixed slot has been seted up at one side middle part of the sealed lid of filter, the upper surface middle part fixedly connected with filter of the sealed lid of filter, set up the filter chamber with the filter adaptation in the valve body, fixing device's lower surface middle part is equipped with rotates the button handle, the one end of the upper surface middle part fixed connection screw rod of rotating the button handle, the other end threaded connection of screw rod has the nut, one side fixedly connected with of nut splines the piece, the opposite side of nut is through the one end of round pin axle swing joint connecting rod, the other end of. The utility model discloses sealed effectual, convenient quick dismantles the filter get off, is convenient for change the filter, and structural design is reasonable, easy operation, and it is convenient to use.

Description

Pilot-operated type electromagnetic valve

Technical Field

The utility model relates to a solenoid valve field, in particular to guide's formula solenoid valve.

Background

The pilot-operated electromagnetic valve has the characteristics of electricity saving, reliable control and capability of preventing and treating the water hammer effect, and is widely applied, and the working principle is as follows: when the valve is electrified, the valve rod is lifted by the electromagnetic force, the pilot valve port is opened, the upper cavity of the electromagnetic valve is relieved by the pilot hole, the upper-lower-high pressure difference is formed around the main valve core, and the valve plate is pushed by the fluid pressure to move upwards to open the main valve port under the action of the pressure difference; when the power is cut off, under the action of spring force and valve plate gravity, the valve rod is reset, the pilot hole is closed, the valve plate moves downwards, and the main valve port is closed; the pressure of the upper cavity of the electromagnetic valve is increased, and the fluid pressure pressurizes the valve plate, so that the sealing is better.

The utility model discloses a pilot operated solenoid valve disclosed in chinese utility model patent application publication specification CN 207728937U, though, this pilot operated solenoid valve greatly reduced the filterable water content of filter, reduced attaching shelves of filter to make the filter change number of times reduce, nevertheless, the filter of this pilot operated solenoid valve is sealed effectual, quick assembly disassembly not convenient for, it is inconvenient to change the filter.

Therefore, it is necessary to provide a pilot-operated solenoid valve to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a guide's formula solenoid valve to the sealed effect of the filter of the current guide's formula solenoid valve that proposes in solving above-mentioned background art is not good, quick assembly disassembly not convenient for, changes the inconvenient problem of filter.

In order to achieve the above object, the utility model provides a following technical scheme: a pilot-operated electromagnetic valve comprises a valve body, wherein the middle part of the lower surface of the valve body is fixedly connected with a fixing device, one side of the fixing device is provided with a filter sealing cover, and the upper surface of the filter sealing cover is attached to the valve body;

a fixing groove is formed in the middle of one side of the filter sealing cover, a filter is fixedly connected to the middle of the upper surface of the filter sealing cover, and a filter cavity matched with the filter is formed in the valve body;

the lower surface middle part of fixing device is equipped with rotates the button handle, the upper surface middle part fixed connection screw rod's that rotates the button handle one end, the other end threaded connection of screw rod has the nut, one side fixedly connected with of nut ends the commentaries on classics piece, the opposite side of nut is through the one end of round pin axle swing joint connecting rod, the other end of connecting rod has the baffle through round pin axle swing joint, one side middle part fixedly connected with dead lever of baffle.

Optionally, a sealing groove is formed in the edge of the upper surface of the sealing cover of the filter, and a rubber sealing ring matched with the sealing groove is embedded in the sealing groove.

Optionally, the other end of the screw rod extends into the fixing device, and the other end of the screw rod is rotatably connected with the inner wall of the fixing device through a rotary joint.

Optionally, the middle part of the rotation stopping block is provided with a limiting rod, two ends of the limiting rod penetrate through the rotation stopping block and are fixedly connected with the inner wall of the fixing device, and the rotation stopping block is connected with the limiting rod in a sliding mode.

Optionally, a return spring is sleeved at one end, close to the baffle, of the fixed rod, one end of the return spring is attached to the baffle, and the other end of the return spring is attached to the inner wall of the fixing device.

Optionally, one end of the fixing rod, which is far away from the baffle, penetrates out of the fixing device, the cross section of the fixing groove is triangular, and the fixing rod is matched with the fixing groove.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be provided with rubber seal, can strengthen the leakproofness that the sealed lid of filter is connected with the valve body, have better sealed effect.

2. The utility model discloses a rotating button, screw rod, nut, only changeing piece, gag lever post, connecting rod, baffle, dead lever and reset spring's cooperation is used, and the filter is dismantled fast to the convenience, is convenient for change the filter, and structural design is reasonable, easy operation, and it is convenient to use.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic sectional view of the sealing cover structure of the filter of the present invention.

Fig. 3 is a schematic sectional view of the fixing device structure of the present invention.

In the figure: 1. a valve body; 2. a fixing device; 3. a filter sealing cover; 4. fixing grooves; 5. a sealing groove; 6. a rubber seal ring; 7. a filter; 8. rotating the knob; 9. a screw; 10. a nut; 11. a rotation stopping block; 12. a limiting rod; 13. a connecting rod; 14. a baffle plate; 15. fixing the rod; 16. a return spring.

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 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", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, 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.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The utility model provides a pilot-operated solenoid valve as shown in figures 1-3, which comprises a valve body 1;

as shown in fig. 1, a fixing device 2 is fixedly connected to the middle of the lower surface of a valve body 1, a filter sealing cover 3 is arranged on one side of the fixing device 2, and the upper surface of the filter sealing cover 3 is attached to the valve body 1.

By figure 2, fixed slot 4 has been seted up at one side middle part of the sealed lid 3 of filter, and seal groove 5 has been seted up at the upper surface edge of the sealed lid 3 of filter, and seal groove 5 is embedded to have a rubber seal 6 with the adaptation of seal groove 5, can strengthen the leakproofness that the sealed lid 3 of filter is connected with valve body 1, has better sealed effect, and the upper surface middle part fixedly connected with filter 7 of the sealed lid 3 of filter has seted up the filter chamber with the adaptation of filter 7 in the valve body 1.

As shown in fig. 3, a rotating knob 8 is arranged in the middle of the lower surface of a fixing device 2, one end of a screw rod 9 is fixedly connected to the middle of the upper surface of the rotating knob 8, the other end of the screw rod 9 extends into the fixing device 2, the other end of the screw rod 9 is rotatably connected with the inner wall of the fixing device 2 through a rotary joint, the structure is reasonable, a nut 10 is in threaded connection with the other end of the screw rod 9, a rotation stop block 11 is fixedly connected to one side of the nut 10, a limit rod 12 is arranged in the middle of the rotation stop block 11, both ends of the limit rod 12 penetrate through the rotation stop block 11 and are fixedly connected with the inner wall of the fixing device 2, the rotation stop block 11 is in sliding connection with the limit rod 12 to enhance the stability of the nut 10 when moving, the other side of the nut 10 is movably connected with one end of a connecting rod 13 through a pin shaft, the other end of the connecting rod 13 is movably connected, the one end and the laminating of baffle 14 of reset spring 16, the other end of reset spring 16 and fixing device 2's inner wall laminating, fixing device 2 is worn out to the one end that the dead lever 15 kept away from baffle 14, and the cross section of fixed slot 4 is triangle-shaped, and dead lever 15 and fixed slot 4 looks adaptation are convenient fixed firm with the sealed lid 3 of filter.

This practical theory of operation:

when filter 7 needs to be changed, the knob is rotated to 8 and drives screw rod 9 to rotate, screw rod 9 drives nut 10 to move, nut 10 is done along the direction motion of screw rod 9 length under the effect of spline 11 and gag lever post 12, spline 11 slides on gag lever post 12, nut 10 drives connecting rod 13 and removes, baffle 14 removes left under the elastic force effect of reset spring 16 (being in compression state), baffle 14 drives dead lever 15 and does the removal of keeping away from fixed slot 4, when dead lever 15 breaks away from fixed slot 4, alright lift filter 7 off and change.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A pilot operated solenoid valve, includes valve body (1), its characterized in that: the middle part of the lower surface of the valve body (1) is fixedly connected with a fixing device (2), one side of the fixing device (2) is provided with a filter sealing cover (3), and the upper surface of the filter sealing cover (3) is attached to the valve body (1);

a fixing groove (4) is formed in the middle of one side of the filter sealing cover (3), a filter (7) is fixedly connected to the middle of the upper surface of the filter sealing cover (3), and a filtering cavity matched with the filter (7) is formed in the valve body (1);

the lower surface middle part of fixing device (2) is equipped with rotates the button (8), rotate the button the one end of the upper surface middle part fixed connection screw rod (9) of (8), the other end threaded connection of screw rod (9) has nut (10), one side fixedly connected with of nut (10) ends commentaries on classics piece (11), the opposite side of nut (10) is through the one end of round pin axle swing joint connecting rod (13), the other end of connecting rod (13) has baffle (14) through round pin axle swing joint, one side middle part fixedly connected with dead lever (15) of baffle (14).

2. A pilot operated solenoid valve according to claim 1 wherein:

seal groove (5) have been seted up to the upper surface edge of the sealed lid of filter (3), seal groove (5) embedded have with rubber seal (6) of seal groove (5) adaptation.

3. A pilot operated solenoid valve according to claim 1 wherein:

the other end of the screw rod (9) extends into the fixing device (2), and the other end of the screw rod (9) is rotatably connected with the inner wall of the fixing device (2) through a rotary joint.

4. A pilot operated solenoid valve according to claim 1 wherein:

the middle part of the rotation stopping block (11) is provided with a limiting rod (12), the two ends of the limiting rod (12) penetrate through the rotation stopping block (11) and are fixedly connected with the inner wall of the fixing device (2), and the rotation stopping block (11) is connected with the limiting rod (12) in a sliding mode.

5. A pilot operated solenoid valve according to claim 1 wherein:

one end of the fixing rod (15) close to the baffle (14) is sleeved with a return spring (16), one end of the return spring (16) is attached to the baffle (14), and the other end of the return spring (16) is attached to the inner wall of the fixing device (2).

6. A pilot operated solenoid valve according to claim 1 wherein:

one end, far away from the baffle (14), of the fixing rod (15) penetrates out of the fixing device (2), the cross section of the fixing groove (4) is triangular, and the fixing rod (15) is matched with the fixing groove (4).