CN2599333Y

CN2599333Y - Proportional valve structure

Info

Publication number: CN2599333Y
Application number: CNU03236430XU
Authority: CN
Inventors: 黄清士
Original assignee: Summit Elec Tech Co ltd
Current assignee: Summit Elec Tech Co ltd
Priority date: 2003-01-22
Filing date: 2003-01-22
Publication date: 2004-01-14
Anticipated expiration: 2013-01-22

Abstract

The utility model is a proportional valve structure which is formed from an upper cover, a base and a core. The structure is characterized in that a plurality of sets of fixed axles are positioned in the upper cover; the upper cover is covered behind the base, so as to reduce the spacing around a rubber gasket above the core; after receiving current from a conductive post, a coil generates magnetic force repelling or attracting the magnetic force generated by the base magnet; outward pushing of the core means a repelling force, and on the contrary, retraction of the core means an attractive force. And during that period, when the core shakes, the fixed axle positioned around the rubber gasket and the spring prevents that too severe shaking of the core impacts the controlling precision, and meanwhile, prevents falling of the rubber gasket and displacement of the spring because of vibration.

Description

The structure of Proportional valve

Technical field

The utility model relates to a kind of structure of Proportional valve.

Background technique

As Fig. 1, Fig. 2, when taking care loop A 51 energisings of body A5, produce a magnetic force and produce a repulsive force with the magnet A 22 that is attached to metal side ring A24, control heart body A5 action, and heart body A5 top is provided with a spring A3 and rubber pad A4, takes care that body A5 is subjected to repulsive force and when mobile, often cause heart body A5 to produce because of space D is excessive and rock significantly, and make rubber pad A4 and spring A3 be subjected to these vibrations to produce skew even come off, and cause the control inaccuracy of Proportional valve A; Fill lose heart control if Proportional valve A is used for the air bag of sphygmomanometer more, then make the blood pressure measuring inaccuracy, cause the careless mistake in the health care.

Summary of the invention

The purpose of this utility model provides a kind of structure of Proportional valve, is made of loam cake, base and heart body, and its structure characteristic is placed on inside on being and is provided with the array stationary axle, after loam cake is placed on base, reduces the space around the rubber pad of heart body top; Loam cake is placed on the base, is fixed at base with screw, is provided with the metal side ring in its base, attachment magnets on the metal side ring; The Yu Xinti top is provided with rubber pad and spring, and the Yu Xinti below is provided with an axle, and a coil is arranged outside axle, axle penetrates in the axle pipe of base, coil is placed in outside the axle pipe, and coil is connected with an electric wire with the conductive pole of base, is beneficial to power supply and flows into generation magnetic field in the coil.

After coil received electric current from conductive pole, coil produced a magnetic force, produced with the magnet of base that a magnetic force repels each other or inhaled mutually, if heart body to extrapolation, then is repulsive force, otherwise then contracts in the heart body, was attraction force; And between this action, when heart body produces and to rock, because stationary axle is located at around rubber pad and the spring, prevent from that the heart body from causing to rock excessive and precision influence control prevents that simultaneously rubber pad from coming off because of vibrations and spring is offset because of shaking when use.

Description of drawings

Fig. 1 is the three-dimensional exploded view of traditional Proportional valve;

Fig. 2 is the sectional drawing of traditional Proportional valve;

Fig. 3 is a stereogram of the present utility model;

Fig. 4 is a three-dimensional exploded view of the present utility model;

Fig. 5 is a sectional drawing of the present utility model;

Fig. 6 is a loam cake stereogram of the present utility model;

Fig. 7 is a loam cake worm's eye view of the present utility model;

Fig. 8 is an enforcement illustration of the present utility model.

Description of reference numerals: A Proportional valve; The A1 loam cake; The A2 base; A22 magnet; A23 axle pipe; A24 metal side ring; The A3 spring; The A4 rubber pad; A5 heart body; The A51 coil; The A52 axle; The B Proportional valve; The B1 loam cake; The B11 screw; The B12 screw; The B2 base; The B21 screw; B22 magnet; B23 axle pipe; B24 metal side ring; The B25 conductive pole; The B3 spring; The B4 rubber pad; B5 heart body; The B51 coil; The B52 axle; The C stationary axle; The D circuit board; The E pressure transducer; The F air bag; G helps Pu (pump); The H conduit.

Embodiment

The utility model provides a kind of structure of Proportional valve, and to shown in Figure 5, this Proportional valve B is made of loam cake B1, base B2 and heart body B5 as Fig. 3, and its structure is to be provided with a metal side ring B24 in base B2, the last attachment magnets B22 of metal side ring B24; Heart body B5 is provided with an axle B52, and a coil B51 is arranged outside axle B52, and axle B52 penetrates in the axle pipe B23 of base B2, coil B51 is placed in outside the axle pipe B23, coil B51 is connected with an electric wire with the conductive pole B25 of base B2 again, is beneficial to power supply and flows in the coil B51, produces magnetic field.

In heart body B5 top, be provided with a rubber pad B4 and spring B 3, after the axle B52 of careful body B2 penetrated the axle pipe B23 of base B2, loam cake B1 was placed on the base B2, and the screw B11 that penetrates loam cake B1 with screw B12 is fixed at the screw B21 of base B2.

Extremely shown in Figure 7 as Fig. 5, loam cake B1 is provided with array stationary axle C in inside, after loam cake B1 is placed on base B2, reduce heart body B5 top rubber pad B4 space D1 all around, behind the electric current of coil B51 reception (seeing also shown in Figure 4) from conductive pole B25, coil B51 produces a magnetic force, repel each other or suction mutually with magnet B 22 generations one magnetic force of being located at base B2, if heart body B5 to extrapolation, then is a repulsive force, contracting in the anti-heart body B5, then is attraction force; And between this action, heart body B5 produces when rocking, because stationary axle C is located at around rubber pad B4 and the spring B 3, prevent from that the heart body B5 from causing to rock excessive and precision influence control prevents that simultaneously rubber pad B4 from coming off because of vibrations and spring B 3 is offset because of shaking when use.

As shown in Figure 6, conduit H connects pressure transducer E, air bag F, the Pu G of group and Proportional valve B, when the Pu G of group inflates, Proportional valve B is subjected to circuit board D control and closes, this moment, air bag F gassy helped Pu G to stop inflation, because conduit H is connected with air bag, its pressure equates, via pressure transducer E induction conduit H pressure inside,, then import a signal into to circuit board D via a RCA I if pressure is excessive, circuit board D control ratio valve B loses heart gradually, makes the pressure of air bag F reach the value of institute's palpus.

As mentioned above, the structure of Proportional valve provided by the utility model, constitute by loam cake, base and heart body, its structure characteristic is placed on inside on being and is provided with the array stationary axle, after loam cake is placed on base, reduce rubber pad space all around, heart body top, be located at around rubber pad and the spring owing to stationary axle again, preventing that the heart body from causing rocks excessive and precision influence control prevents that simultaneously rubber pad from coming off because of vibrations and spring is offset because of shaking when using.

Below the utility model and prior art are compared:

Prior art

1, heart body is subject to shake produce and rocks.

2, the assembly of heart body is subject to rock the phenomenon that generation comes off.

The utility model

Stability when 1, improving the Proportional valve use with control.

2, utilize stationary axle to reduce heart body and produce skew because of rocking.

3, firm spring of stationary axle and rubber pad, unlikely being rocked and coming off.

The above only is of the present utility model one preferable possible embodiments, it is not the scope that is used for limiting model utility, so equivalent structure that all utilization the utility model specifications and accompanying drawing content are done, directly or indirectly apply to other correlative technology field, all ought to be contained within the spirit and scope of the present utility model.

Claims

1, a kind of structure of Proportional valve is made of loam cake, base and heart body, it is characterized in that: on be placed on inside and be provided with the array stationary axle, loam cake is placed on the base, is fixed at base with screw, is provided with the metal side ring in its base, attachment magnets on the metal side ring; The Yu Xinti top is provided with rubber pad and spring, and the Yu Xinti below is provided with an axle, and a coil is arranged outside axle, axle penetrates in the axle pipe of base, coil is placed in outside the axle pipe, and coil is connected with an electric wire with the conductive pole of base, is beneficial to power supply and flows into generation magnetic field in the coil.