CN207864742U - Anti-rotational wear-resisting solenoid valve - Google Patents

Abstract

The anti-rotational wear-resisting solenoid valve of the utility model, is to set valve deck on valve body, the valve rod being made of dynamic iron core and static iron core is set among valve deck.Static iron core passes through the interstitial hole of electromagnetic coil, is fixed with clamp spring with the upper plane of solenoid housing, can prevent it from skidding off or rotating.Piston valve core is set in valve body, resetting spring is set between valve deck bottom and piston valve core, and the section of turning back of upper and lower ends face steel wire is embedded in the anti-rotational groove in the inner concave and valve deck bottom of piston valve core.In the upper plane sets position pressing plate of valve deck, convex portion is above set, is matched with the pit for being located at solenoid housing bottom surface, prevents solenoid housing from rotating and quickly being positioned conducive to when assembling.Abrasion-proof piston ring is set around piston valve core, is equipped in bottom and is vulcanized integral wear-resisting rubber seal cap with it.The piston valve core of this product will not rotate under return spring pressure, to keep air vent channel unimpeded always, it is ensured that the stability of media flow and the sensitivity of solenoid valve.

Description

Anti-rotational wear-resisting solenoid valve

Technical field

The utility model is related to the solenoid valve market of automatic control system, especially one kind can prevent dynamic iron core from rotating Wear-resisting solenoid valve.

Background technology

Solenoid valve is indispensable critical elements in automatic control system.Its moulding and volume are then according to power, use On the way, installation site difference can be varied.Some solenoid valves applied on the higher big machinery of the degree of automation, due to Frequency of use is high, the reasons such as mechanical oscillation, abrasion, and inner spool is it some times happens that rotation or upheaval, it is possible to make essence originally The venthole of true pairing misplaces, thus rate-of flow can be made unstable, in turn results in control performance and the spirit of the solenoid valve Sensitivity is decreased obviously.

Utility model content

The utility model aim is that the spool of solenoid valve in order to prevent rotates at work, is overcome because of the stomata in valve Channel misplaces and causes the hidden danger of flow shakiness and sensitivity decline.

The utility model solve technical problem technical solution be：Anti-rotational wear-resisting solenoid valve, including valve body, valve deck, valve Bar, piston valve core and electromagnetic coil set valve deck above the valve body, the valve rod for being commonly called as pilot head, institute are set among the valve deck It states valve rod to be made of dynamic iron core and static iron core, the static iron core is also known as guide's head casing tube in valve deck interstitial hole and electromagnetic coil Between hole, and fixed with clamp spring with the upper surface of solenoid housing, can prevent it from skidding off or rotating.Piston is equipped in the valve body Formula spool is equipped with resetting spring between the valve deck bottom and piston valve core, the both ends of the surface steel wire of the resetting spring Section of turning back is embedded in the inner concave of piston valve core and the anti-rotational groove of valve deck bottom, to prevent piston valve core from sending out Raw rotation.

The valve deck upper plane be equipped with positioning pressuring plate, the positioning pressuring plate be equipped with convex portion, the convex portion be located at The pit of solenoid housing bottom surface matches, and can prevent solenoid housing from rotating and be conducive to quickly position when assembly.

Wear-resisting piston ring is equipped with around the piston valve core, it is close to be equipped with the integral wear-resisting rubber of vulcanization in bottom Sealing cap.

The utility model has the advantages that：The section of turning back of the both ends of the surface steel wire of resetting spring is embedded in the indent of piston valve core After in the anti-rotational groove being arranged in face and valve deck bottom, piston valve core is made not rotated under return spring pressure, Air vent channel can be kept unimpeded always, to the stability of keep medium flow and the sensitivity of solenoid valve.

Description of the drawings

Fig. 1 is main view (broken section) figure of the utility model；

Fig. 2 is the vertical view of anti-rotational groove in the utility model；

Each portion's title and number in figure：1- valve bodies, 2- rubber seals cap, 3- piston valve cores, the anti-rotational grooves of 4-, 5- live Plug ring, 6- resetting springs, 7- dynamic iron cores, 8- positioning pressuring plates, 9- static iron cores, 10- electromagnetic coils, 11- valve decks, 12- clamp springs.

Specific implementation mode

As shown in Figure 1：The utility model is a kind of anti-rotational wear-resisting solenoid valve, including valve body 1, valve deck 11, valve rod, piston Formula spool 3 and electromagnetic coil 10.The valve body 1 sets valve deck 11 above；The valve rod for being commonly called as pilot head is set among the valve deck 11, it It is made of dynamic iron core 7 and static iron core 9；The static iron core 9 is also known as guide's head casing tube and passes through 11 interstitial hole of valve deck and electromagnetic coil 10 Interstitial hole is fixed with the upper surface clamp spring 12 of 10 shell of electromagnetic coil, can prevent it from skidding off or rotating.It is set in the valve body 1 There is piston valve core 3, resetting spring 6 is equipped between 11 bottom of the valve deck and piston valve core 3, the resetting spring 6 The section of turning back of both ends of the surface steel wire enters in the anti-rotational groove 4 being arranged in 11 bottom of inner concave and valve deck of piston valve core 3, can Prevent piston valve core 3 from rotating.It is equipped with positioning pressuring plate 8 in the upper plane of the valve deck, the positioning pressuring plate 8 is equipped with convex portion, Coordinate with the pit for being located at 10 housing bottom surface of electromagnetic coil, can prevent 10 shell of electromagnetic coil from rotating and is conducive to position when assembly. It is equipped with wear-resisting piston ring 5 around the piston valve core 3, the integral wear-resisting rubber seal cap 2 of vulcanization is equipped in bottom.

Brief description operation principle：When the utility model at work, usually in the power-off state, electromagnetic coil 10 is without magnetic Power, the dynamic iron core 7 of valve rod is under its own gravity and tension spring effect, and dynamic iron core 7 moves down, the rubber seal of 7 bottom of dynamic iron core Chock plug and sealing valve port, at this time solenoid valve be closed.When electromagnetic coil 10 is powered, the static iron core 9 of valve rod upper end produces Raw electromagnetic field attracts dynamic iron core 7 to move up, and piston valve core 3 overcomes tension force of spring to also move up, and valve port is opened, and is situated between For matter from import P1 flow directions outlet P2, solenoid valve is in running order.Since this valve takes, multiple tracks is anti-rotational and wear-resisting measure, i.e., The shell for acting frequent again, internal piston valve core 3, valve rod and electromagnetic coil 10 when work is set to be not easy to rotate or loosen, The sensitivity of the stability of rate-of flow and electromagnetism valve events when can ensure that work.

Claims (3)

1. anti-rotational wear-resisting solenoid valve, including valve body (1), valve deck (11), valve rod, piston valve core (3) and electromagnetic coil (10), It is characterized in that the valve body (1) sets valve deck (11) above, the valve rod for being commonly called as guide's head casing tube, institute are equipped among the valve deck (11) It states and is equipped with can slide up and down dynamic iron core (7) and the static iron core (9) that is fixedly connected with pilot head internal surface of sleeve pipe, the valve in valve rod Bar passes through plane on valve deck (11) interstitial hole and electromagnetic coil (10) interstitial hole, with electromagnetic coil (10) shell solid with clamp spring (12) It is fixed, it is equipped with piston valve core (3) in the valve body (1), is equipped between the valve deck (11) bottom and piston valve core (3) multiple Position spring (6), the section of turning back of resetting spring (6) the both ends of the surface steel wire be embedded in set on piston valve core (3) inner concave and In the anti-rotational groove (4) of valve deck (11) bottom.

2. anti-rotational wear-resisting solenoid valve according to claim 1, it is characterized in that the upper plane in the valve deck (11) is equipped with Positioning pressuring plate (8), the positioning pressuring plate (8) are equipped with convex portion, are matched with the pit for being located at electromagnetic coil (10) housing bottom surface.

3. anti-rotational wear-resisting solenoid valve according to claim 1, it is characterized in that being equipped with around the piston valve core (3) resistance to The piston ring (5) of mill is equipped in piston valve core (3) bottom and vulcanizes integral wear-resisting rubber seal cap (2) with it.