CN212775704U - Loose joint type electromagnetic valve - Google Patents

Abstract

The utility model relates to a loose joint type electromagnetic valve, which comprises a valve body, an adapter, a valve cover, a valve element and a coil, wherein the valve body is provided with an inflow inlet, a channel and an outflow outlet, the adapter is provided with two inflow inlets which are respectively arranged at the front end and the rear end of the valve body, the adapter consists of a connecting pipe and a nut, the connecting pipe of the adapter at the front is communicated with the inflow inlet of the valve body, the connecting pipe of the adapter at the rear is communicated with the outflow outlet of the valve body, the valve cover is covered on the upper part of the valve body, the coil is arranged above the valve cover, the coil drives the valve element to open or close a channel valve port, when the loose joint type electromagnetic valve is arranged on an external pipeline, the movable column part is sleeved with the nut because of the nut, the valve body limiting parts and the nut limiting parts at the two ends of, the integral valve body does not need to be rotated, and the valve has the advantages of simple, convenient and quick operation and the like.

Description

Loose joint type electromagnetic valve

Technical Field

The utility model relates to a solenoid valve field, concretely relates to loose joint formula solenoid valve.

Background

The electromagnetic valve is an automatic basic element for controlling the circulation of fluid or gas by utilizing an electromagnetic principle, belongs to an actuator, is mainly used for adjusting the direction, flow, speed and other parameters of a medium in an industrial control system, the following defects are found in the use process of the electromagnetic valve in the existing market, firstly, the electromagnetic valve is installed in a pipeline and assembled by relying on internal threads of the valve body, the efficiency of the valve body needs to be lower in the assembling mode, the large electromagnetic valve is more troublesome to assemble, the electromagnetic valve is very difficult to disassemble if sliding teeth are encountered, the internal structure of the electromagnetic valve is complex, the parts are easy to wear and cause water leakage, the service life is limited, the electromagnetic valve with the existing structure is additionally provided with a sealing ring between the valve body and a valve cover, the water leakage is prevented.

SUMMERY OF THE UTILITY MODEL

There is the defect to prior art, the utility model provides a convenient equipment, loose joint formula solenoid valve that the gas tightness is good, concrete technical scheme is as follows:

a loose joint type electromagnetic valve comprises a valve body, an adapter, a valve cover, a valve element and a coil, wherein the valve body is provided with an inflow port, a channel and an outflow port, the adapter is provided with two inflow ports, the two inflow ports and the two outflow ports are respectively arranged at the front end and the rear end of the valve body, the adapter consists of a connecting pipe and a nut, the connecting pipe of the adapter at the front end is communicated with the inflow port of the valve body, the connecting pipe of the adapter at the rear end is communicated with the outflow port of the valve body, the connecting pipe consists of a screwing part, a valve body limiting part, a movable column part and a nut limiting part which are sequentially connected into a whole, the screwing part is in threaded connection with the valve body, the inner diameter of the limiting ring is larger than the outer diameter of the movable column part and smaller than the outer diameter of the limiting part of the nut, the valve cover covers the upper part of the valve body, a coil is installed above the valve cover, and the coil drives the valve element to open or close the channel valve port.

Preferably, the valve element comprises a pilot head, an iron core spring, a movable iron core, a driving spring and a diaphragm assembly, wherein the upper end of the pilot head penetrates through the coil, the lower end of the pilot head is installed on the valve cover, the movable iron core is sleeved in the pilot head, and one end of the iron core spring abuts against the inner wall of the pilot head; the other end of the movable iron core is propped against the movable iron core, the lower end of the movable iron core is connected with the diaphragm assembly through the driving spring, the diaphragm assembly is arranged in a cavity formed by the valve body and the valve cover, and the passage valve port is blocked by the diaphragm assembly.

Preferably, the diaphragm subassembly includes the clamp plate, goes up the diaphragm and lower diaphragm, and the diaphragm is glued to the clamp plate middle part, goes up diaphragm middle part and glues diaphragm down, and the passageway of valve body is closed in lower diaphragm middle part lid, and lower diaphragm week side contacts with valve body and valve gap.

Preferably, a cylindrical pressing plate step is arranged above the pressing plate, a cylindrical iron core step is arranged below the movable iron core, the middle part of the driving spring is wide, the upper end and the lower end of the driving spring are narrow, and the lower end of the driving spring is sleeved with the pressing plate step; the upper end is sleeved with an iron core step.

Preferably, the lower diaphragm is provided with a pressure through hole which is communicated with a water inlet channel of the valve body and a closed space at the upper part of the valve cover.

Has the advantages that: when will installing loose joint formula solenoid valve outside pipeline, because of the nut activity suit in the activity post, and the spacing portion of activity post portion both ends valve body, thereby the spacing portion of nut is pushing up spacing ring stop nut, the nut can be followed the activity post portion and removed suitable position and can not deviate from, swivel nut utilizes the internal thread to realize quick spiro union when the nut is close to outside pipeline, need not to rotate whole valve body, and has easy operation, and is convenient, swift advantage such as, and nut intensity is high, tensile strength is good, connect firmly, stable performance, and meet the user demand.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is an exploded view of the present invention;

fig. 3 is a cross-sectional view of the overall structure of the present invention;

figure 4 is a cross-sectional view of the adapter of the present invention;

fig. 5 is an exploded view of the solenoid valve of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 as appropriate by those of ordinary skill in the art.

As shown in fig. 1 to 4, a movable joint type electromagnetic valve comprises a valve body 1, an adapter 2, a valve cover 3, a valve element and a coil 4, wherein the valve body 1 is provided with an inflow port 1a, a channel 1b and an outflow port 1c, the adapter 2 is provided with two connectors respectively arranged at the front end and the rear end of the valve body 1, the adapter 2 is composed of a connecting pipe 21 and a nut 22, the strength of the nut 22 is larger than that of the valve body 1, the connecting pipe 21 of the front adapter 2 is communicated with the inflow port of the valve body 1, the connecting pipe 21 of the rear adapter 2 is communicated with the outflow port 1c of the valve body 1, the connecting pipe 21 is composed of a screw joint part 211, a valve body limiting part 212, a movable column part 213 and a nut limiting part 214 which are connected into a whole in sequence, an external thread is arranged at the outer peripheral side of the screw joint part 211, the screw joint part 211 is in, the inner side of the nut 22 is provided with a limit ring 221 and an internal thread 222, the nut 22 is movably sleeved in the movable column part 213, the inner diameter D3 of the limit ring is larger than the outer diameter D2 of the movable column part and smaller than the outer diameter D4 of the limit part of the nut, and the outer diameter D1 of the limit part of the valve body is larger than the outer diameter D4 of the limit part of the nut, so that the nut 22 can move along the movable column part 213 and is limited by the limit part 212 of the valve body and the limit part 214 of the nut because the limit ring 221 is propped against the limit part of the valve body and the limit part 214 of the nut, the nut 22 cannot be separated from the movable column part.

As shown in fig. 5, the valve element includes a pilot head 6, an iron core spring 7, a movable iron core 8, a driving spring 9, and a diaphragm assembly, the upper end of the pilot head 6 passes through the coil 4, the lower end of the pilot head 6 is mounted on the valve cover 3, the movable iron core 8 is sleeved in the pilot head 6, and one end of the iron core spring 7 abuts against the inner wall of the pilot head 6; the other end is supporting movable iron core 8, 8 lower extremes of movable iron core pass through drive spring 9 and connect the diaphragm subassembly, the diaphragm subassembly is arranged in the cavity that valve body and valve gap are constituteed, the diaphragm subassembly includes clamp plate 10, go up diaphragm 11 and lower diaphragm 12, clamp plate 10 middle part bonds diaphragm 11, go up diaphragm 11 middle part and bond lower diaphragm 12, lower diaphragm 12 middle part lid closes the passageway 1a of valve body 1, lower diaphragm 12 week side contacts with valve body 1 and valve gap 2, valve body 1 and valve gap 2 pass through the screw connection an organic whole, lower diaphragm 12 plays the effect of sealing washer, prevent that water from flowing out in the joint gap of valve body 1 and valve gap 2, the gas tightness is good, and need not to install the sealing washer additional when assembling valve body 1 and valve gap 2, reduce assembly process and manufacturing cost.

Specifically, a cylindrical pressing plate step is arranged above the pressing plate 10, a cylindrical iron core step is arranged below the movable iron core 8, the middle part of the driving spring 9 is wide, the upper end and the lower end of the driving spring 9 are narrow, and the lower end of the driving spring 9 is sleeved with the pressing plate step; the upper end of the movable iron core 8 is sleeved with an iron core step, the movable iron core 8 moves upwards to stretch the driving spring 9, the driving spring 9 pulls the middle of the lower diaphragm 12 to stretch, the electromagnetic valve is switched on, in order to ensure that the movement of the lower diaphragm 12 is not influenced by the pressure difference between the upper part and the lower part of the inner cavity of the valve body, the lower diaphragm 12 is provided with a pressure through hole 12a, the pressure through hole 12a is communicated with a water inlet channel of the valve body 1 and a closed space at the upper part of the valve cover 2, the lower diaphragm 12 is in an external environment with equal pressure and cannot be suddenly loosened due to the water pressure at the bottom.

The above description is provided for the purpose of describing the present invention in more detail with reference to the preferred embodiments, and it should not be construed that the present invention is limited to these descriptions, and it will be apparent to those skilled in the art that the present invention can be implemented in many ways without departing from the spirit and scope of the present invention.

Claims (5)

1. A loose joint type electromagnetic valve is characterized in that: the valve body is provided with an inflow port, a channel and an outflow port, the adapter is provided with two ports which are respectively arranged at the front end and the rear end of the valve body, the adapter is composed of a connecting pipe and a nut, the connecting pipe of the adapter at the front is communicated with the inflow port of the valve body, the connecting pipe of the adapter at the rear is communicated with the outflow port of the valve body, the connecting pipe is composed of a screwing part, a valve body limiting part, a movable column part and a nut limiting part which are sequentially connected into a whole, the screwing part is in threaded connection with the valve body, the outer diameter of the valve body limiting part is larger than the diameter of the inflow port, the outer diameter of the valve body limiting part is, the inner diameter of the limiting ring is larger than the outer diameter of the movable column part and smaller than the outer diameter of the limiting part of the nut, the valve cover covers the upper part of the valve body, a coil is installed above the valve cover, and the coil drives the valve element to open or close the channel valve port.

2. The loose joint solenoid valve of claim 1, wherein: the valve element comprises a pilot head, an iron core spring, a movable iron core, a driving spring and a diaphragm assembly, wherein the upper end of the pilot head penetrates through a coil, the lower end of the pilot head is installed on the valve cover, the movable iron core is sleeved in the pilot head, and one end of the iron core spring props against the inner wall of the pilot head; the other end of the movable iron core is propped against the movable iron core, the lower end of the movable iron core is connected with the diaphragm assembly through the driving spring, the diaphragm assembly is arranged in a cavity formed by the valve body and the valve cover, and the passage valve port is blocked by the diaphragm assembly.

3. The loose joint solenoid valve of claim 2, wherein: the diaphragm assembly comprises a pressing plate, an upper diaphragm and a lower diaphragm, the middle of the pressing plate is bonded with the upper diaphragm, the middle of the upper diaphragm is bonded with the lower diaphragm, the middle of the lower diaphragm covers a channel of the valve body, and the periphery of the lower diaphragm is in contact with the valve body and the valve cover.

4. A loose joint solenoid valve as claimed in claim 3, wherein: a cylindrical pressing plate step is arranged above the pressing plate, a cylindrical iron core step is arranged below the movable iron core, the middle part of the driving spring is wide, the upper end and the lower end of the driving spring are narrow, and the lower end of the driving spring is sleeved with the pressing plate step; the upper end is sleeved with an iron core step.

5. A loose joint solenoid valve as claimed in claim 3, wherein: the lower diaphragm is provided with a pressure through hole which is communicated with a water inlet channel of the valve body and the closed space at the upper part of the valve cover.

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