CN210484787U

CN210484787U - Electromagnetic valve

Info

Publication number: CN210484787U
Application number: CN201921201639.0U
Authority: CN
Inventors: 沈献伟
Original assignee: Ningbo Speeda Electric Appliance Co Ltd
Current assignee: Ningbo Speeda Electric Appliance Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-05-08
Anticipated expiration: 2029-07-29

Abstract

The utility model belongs to the technical field of the solenoid valve technique and specifically relates to a solenoid valve, which comprises a valve body, the one end of valve body is equipped with fluid inlet, the other end of valve body is equipped with the fluid outlet, the valve gap is installed at the top of valve body, the top of valve gap is equipped with the protection casing, fixed mounting has first heating panel on the inner wall of fluid inlet, install the second on the inner wall of fluid outlet and generate heat the board, the inside joint of protection casing has the removal iron core, the outside winding of removal iron core has the coil, the pipe of being qualified for the next round of competitions is installed in the outside of protection casing, the one end joint that the protection casing was kept away from to the pipe of being qualified for the next round of competitions has the head of being qualified for the next round of competitions. The utility model discloses a practicality is strong, is worth promoting.

Description

Electromagnetic valve

Technical Field

The utility model relates to a solenoid valve technical field especially relates to a solenoid valve.

Background

The electromagnetic valve is industrial equipment controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, is not limited to hydraulic pressure and pneumatic pressure, and is used for adjusting the direction, flow, speed and other parameters of a medium in an industrial control system; the magnetic force is obtained mainly by electrifying a coil outside the electromagnet, so that the valve core moves, and the piston slides under the action of internal air pressure; in actual pipeline transportation, the solenoid valve is widely applied to a transportation pipeline, and is particularly common on a transportation pipeline of liquid, but a part of liquid can remain in an inlet and an outlet of the solenoid valve, and under a low-temperature environment, the liquid can be frozen, so that the flow in the solenoid valve is reduced, and even the situation of blockage can occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the low-temperature flow becomes small in the prior art, and provides a solenoid valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

designing an electromagnetic valve, comprising a valve body, wherein one end of the valve body is provided with a fluid inlet, the other end of the valve body is provided with a fluid outlet, the top of the valve body is fixedly provided with a valve cover, the top of the valve cover is provided with a protective shell, the protective shell is fixedly connected with the valve cover through a bolt, the inner wall of the fluid inlet is fixedly provided with a first heating plate, the inner wall of the fluid outlet is fixedly provided with a second heating plate, the inner part of the protective shell is clamped with a movable iron core, the movable iron core is in sliding connection with the protective shell, the outer side of the movable iron core is wound with a coil, the outer side of the protective shell is fixedly provided with an outlet conduit, one end of the outlet conduit, which is far away from the protective shell, is clamped with an outlet seal head, the bottom of the movable iron core is provided with a pilot hole, the top end of the interior of the valve body is provided with a main valve cavity, the main valve cavity is communicated with the pilot hole through a pipeline, a piston is clamped in the main valve cavity and is in sliding connection with the inner wall of the main valve cavity, and the bottom of the piston is fixedly connected with a second valve core.

Preferably, the top of the protection shell is provided with a fixing bolt, and the fixing bolt is in threaded connection with the protection shell.

Preferably, a corresponding power supply lead is installed in the outgoing line guide pipe, and the power supply lead is electrically connected with the coil.

Preferably, the piston is sleeved with a piston ring in an extending manner, and the piston ring is in sliding connection with the inner wall of the main valve cavity.

Preferably, a clamping groove matched with the second valve core is formed in the valve body, and the second valve core is clamped in the clamping groove and is in sliding connection with the clamping groove.

The utility model provides a solenoid valve, beneficial effect lies in: the design of first heating panel and second heating panel is used in that, after liquid fluid flows into the exit of solenoid valve, first heating panel and second heating panel can transfer heat for the liquid of inflow, under low temperature environment, has guaranteed that liquid can not freeze, has avoided the low temperature to lead to the problem that the flow diminishes or blocks up.

Drawings

Fig. 1 is a schematic structural diagram of a solenoid valve according to the present invention;

fig. 2 is a cross-sectional view of a solenoid valve according to the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 2.

In the figure: the valve comprises a valve body 1, a fluid inlet 2, a fluid outlet 3, a valve cover 4, a protective shell 5, a fixing bolt 6, a movable iron core 7, a coil 8, an outlet conduit 9, an outlet end socket 10, a pilot hole 12, a first valve core 13, a main valve cavity 14, a piston 15, a piston ring 16, a throttling hole 17, a second valve core 18, a first heating plate 19 and a second heating plate 20.

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.

Referring to fig. 1-3, a solenoid valve includes a valve body 1, one end of the valve body 1 is provided with a fluid inlet 2, the other end of the valve body 1 is provided with a fluid outlet 3, the top of the valve body 1 is fixedly provided with a valve cover 4, the top of the valve cover 4 is provided with a protective shell 5, the protective shell 5 is fixedly connected with the valve cover 4 through a bolt, the top of the protective shell 5 is provided with a fixing bolt 6, the fixing bolt 6 is in threaded connection with the protective shell 5, the inner wall of the fluid inlet 2 is fixedly provided with a first heating plate 19, and the inner wall of the fluid outlet 3 is fixedly provided with a second heating; the first heating plate 19 and the second heating plate 20 are designed to transfer heat to the inflowing liquid after the liquid fluid flows into the inlet and outlet of the electromagnetic valve, so that the liquid is prevented from freezing in a low-temperature environment, and the problem of flow reduction or blockage caused by low temperature is avoided.

A movable iron core 7 is clamped in the protective shell 5, the movable iron core 7 is connected with the protective shell 5 in a sliding manner, a coil 8 is wound on the outer side of the movable iron core 7, an outgoing line guide pipe 9 is fixedly installed on the outer side of the protective shell 5, a corresponding power supply lead is installed in the outgoing line guide pipe 9 and is electrically connected with the coil 8, an outgoing line end socket 10 is clamped at one end, away from the protective shell 5, of the outgoing line guide pipe 9, a pilot hole 12 is arranged at the bottom of the movable iron core 7, the pilot hole 12 is arranged in the valve cover 4, a first valve core 13 is clamped in the pilot hole 12, a main valve cavity 14 is arranged at the top end in the valve body 1, the main valve cavity 14 is communicated with the pilot hole 12 through a pipeline, a piston 15 is clamped in the main valve cavity 14, a piston ring 16 is sleeved outside the piston 15, the piston ring 16 is, a clamping groove matched with the second valve core 18 is formed in the valve body 1, and the second valve core 18 is clamped in the clamping groove and is in sliding connection with the clamping groove; when the coil 8 is electrified, the movable iron core 7 can generate magnetic force, the first valve core 13 is moved by the electromagnetic force to open the pilot hole 12, the pressure of the upper cavity is rapidly reduced, and the pressure of the fluid pushes the closing member to rise to open the valve; by the reverse principle, the valve can be closed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The electromagnetic valve comprises a valve body (1), wherein one end of the valve body (1) is provided with a fluid inlet (2), the other end of the valve body (1) is provided with a fluid outlet (3), the top of the valve body (1) is fixedly provided with a valve cover (4), the top of the valve cover (4) is provided with a protective shell (5), the protective shell (5) is fixedly connected with the valve cover (4) through bolts, the electromagnetic valve is characterized in that a first heating plate (19) is fixedly arranged on the inner wall of the fluid inlet (2), a second heating plate (20) is fixedly arranged on the inner wall of the fluid outlet (3), a movable iron core (7) is clamped in the protective shell (5), the movable iron core (7) is connected with the protective shell (5) in a sliding manner, a coil (8) is wound on the outer side of the movable iron core (7), and an outlet conduit (9) is fixedly arranged on the outer side of the protective, an outlet end socket (10) is clamped at one end, far away from the protective shell (5), of the outlet guide pipe (9), a pilot hole (12) is arranged at the bottom of the movable iron core (7), the pilot hole (12) is arranged inside the valve cover (4), a first valve core (13) is clamped inside the pilot hole (12), a main valve cavity (14) is arranged at the top end inside the valve body (1), the main valve cavity (14) is communicated with the pilot hole (12) through a pipeline, a piston (15) is clamped inside the main valve cavity (14), the piston (15) is connected with the inner wall of the main valve cavity (14) in a sliding mode, and a second valve core (18) is fixedly connected to the bottom of the piston (15).

2. A solenoid valve according to claim 1, characterized in that the top of the protective housing (5) is provided with a fixing bolt (6), and the fixing bolt (6) is in threaded connection with the protective housing (5).

3. A solenoid valve according to claim 1, characterised in that the outlet conduit (9) houses a respective power supply lead, electrically connected to the coil (8).

4. A solenoid valve according to claim 1, characterised in that the piston (15) is externally sheathed with a piston ring (16), the piston ring (16) being in sliding connection with the inner wall of the main valve chamber (14).

5. The electromagnetic valve according to claim 1, characterized in that a clamping groove matched with the second valve core (18) is arranged in the valve body (1), and the second valve core (18) is clamped in the clamping groove and is connected with the clamping groove in a sliding manner.