CN2295092Y - Water-pressure linkage gas electromagnetic valve - Google Patents

Abstract

The utility model relates to a water-pressure linkage gas electromagnetic valve, an electromagnetic valve is arranged in a sealed circular shell; a reset spring is arranged between a suction magnetic sheet and the inner end surface of the circular shell; a sliding sleeve is fixedly connected with the circular shell; a rigid sleeve pipe is arranged between the sliding sleeve and a valve body; the tail end of a shell body is provided with a wiring end mutually sealed together with the shell body. The electromagnetic valve of the utility model is adopted; the utility model can effectively eradicate the incipient fault of a structure of gas leakage of the electromagnetic valve; the shortage in prior art can be overcome; the utility model has the advantages of small movably frictional force for a sliding shaft bar, saved power consumption, long service life, simple structure, safety, etc.

Description

A kind of novel hydraulic pressure linkage type gas electromagnetic valve

The utility model relates to a kind of control structure of gas water-heater, refer to especially a kind of in gas water-heater control burnt gas switch under hydraulic action automatic on-off magnetic switch, specifically refer to a kind of novel hydraulic pressure linkage type gas electromagnetic valve.

In the prior art (as shown in Figure 1), for preventing that combustion gas from entering the electromagnetism valve housing, cause valve body gas leakage, on its sliding shaft rod, need put leak-stopping glue ring, the use of right this leak-stopping glue ring, though prevented the gas leakage of solenoid valve preferably, but make the frictional force between the sleeve pipe of sliding shaft rod and valve body strengthen, thereby strengthened the surface friction drag of sliding shaft rod, offset a large amount of electromagnetic attractions, increased power consumption, especially when valve opening, and meet the abnormal state electromagnetic force when disappearing automatically, because the existence of frictional force makes that valve is difficult to accomplish definitely and effectively close, cause gas water-heater gas leakage, thereby have a strong impact on its Safety performance, above-mentioned leak-stopping glue ring can be because friction and material aging cause its forfeiture leak-stopping effect after long-term the use simultaneously; The solenoid valve that is positioned at housing in addition is directly to be undertaken by the lead that inserts housing with being connected of power supply, and this makes combustion gas to produce leakage by the insulation rubber of lead, affects the Safety performance of gas water-heater equally.

The purpose of this utility model just is to provide a kind of improved novel hydraulic pressure linkage type gas electromagnetic valve, with the mode of connection by its simple perfect leakage proof structure and novelty, eradicated the structure hidden danger of gas leakage effectively, overcome the deficiencies in the prior art preferably, and have that the sliding shaft rod kinetic friction force is little, power consumptive province, long service life, advantage such as simple in structure and safe and reliable.

The purpose of this utility model realizes in the following manner: a kind of novel hydraulic pressure linkage type gas electromagnetic valve, mainly be by valve body, sliding shaft rod, solenoid valve, valve, open and close spring, housing and external terminal are formed, wherein solenoid valve is by electromagnet, formed by magnet absorbing plate and associated tracks, sliding shaft rod directly and being joined by magnet absorbing plate of solenoid valve, valve is fixed on an end of sliding sleeve, be provided with the keying spring between valve and the valve body, it is characterized in that above-mentioned electromagnetic valve device is in the round shell of a sealing, be provided with Returnning spring between the interior edge face of magnet absorbing plate and circle shell, the electromagnetism iron rule is fixed in another interior edge face of round shell, the magnet spool lead is then drawn by the front-end face of circle shell, be embedded in line groove along circle shell outer rim, and be connected with negative terminal with the set positive terminal of the interior edge face of housing respectively, this positive terminal is installed on the interior insulation board, the tail end of terminal is provided with internal thread, in then being arranged on, negative terminal between insulation board and the housing, offers the breach and the irregular end face that can match on the interior insulation board with the bump body on the housing interior edge face.

Adopt a kind of novel hydraulic pressure linkage type gas electromagnetic valve of the present utility model, owing to adopted simple perfect leakproof and the O-ring shell that reduces friction effectively and the structure of rigid casing, and the novel leakproof mode of connection, thereby eradicated the structure hidden danger of solenoid valve gas leakage effectively, the deficiencies in the prior art have been overcome preferably, and have that the sliding shaft rod kinetic friction force is little, power consumptive province, long service life, advantage such as simple in structure and safe and reliable, be a kind of very desirable novel hydraulic pressure linkage type gas electromagnetic valve.

Description of drawings:

Fig. 1 is a correlation technique structural representation of the present utility model;

Fig. 2 is a kind of example structure of the utility model (opening state) schematic representation.

Wherein: 1-housing, 2-circle shell, 3-be by magnet absorbing plate, the 4-electromagnet, the 5-sliding shaft rod, 6-sliding sleeve, 7-sleeve pipe, 8-valve body, 9-opens and closes spring, 10-valve, 11-set screw, 12-terminal, the 13-seal ring, 14-lead, 15-Returnning spring, the 16-adjusting screw, 17-positive terminal, 18-negative terminal, insulation board in the 19-, 20-external insulation plate, 21-external terminal.

Below in conjunction with drawings and Examples the utility model is further described.

As shown in Figure 2, hydraulic pressure linkage type gas electromagnetic valve of the present utility model, mainly be by valve body (8), sliding shaft rod (5), solenoid valve, valve (10), open and close spring (9), housing (1) and external terminal (21) are formed, wherein solenoid valve is by electromagnet (4), formed by magnet absorbing plate (3) and associated tracks (14), with the sliding shaft rod (5) of hydraulic pressure interlock directly and solenoid valve joined by magnet absorbing plate (3), the valve (10) that opens and closes blast tube is fixed on an end of sliding sleeve (6), be provided with between valve (10) and the valve body (8) and open and close spring (9), improvement of the present utility model is that above-mentioned electromagnetic valve device is in the round shell (2) of a sealing, and and the circle shell an interior edge face between affixed by screw, be provided with Returnning spring (15) between another interior edge face of magnet absorbing plate (3) and circle shell on it, the other end of sliding sleeve (6) and this circle shell (2) are affixed, between sliding sleeve (6) and above-mentioned valve body (8), be provided with the sleeve pipe (7) of rigidity, slide under the drive of round shell relatively sleeve pipe and do straight reciprocating motion, electromagnet (4) then is fixed in another interior edge face of round shell (2), the winding wire of electromagnet (4) is then drawn by the front-end face of circle shell, be embedded in line groove along circle shell outer rim, and be connected with negative terminal (18) with the set positive terminal (17) of the interior edge face of housing (1) respectively, positive terminal (17) is installed on the interior insulation board (19), the tail end of positive terminal is provided with internal thread, in then being arranged on, negative terminal (18) between insulation board and the housing, offers the breach and the irregular end face that can cooperatively interact on the interior insulation board (19) with the bump body on housing (2) interior edge face; Between above-mentioned external terminal (21) and housing (1), be provided with an external insulation plate (20), be provided with the seal ring (13) of flange shape outside between insulation board (20) and the housing (1), a location screw (11) passes the threads engaged of the positive terminal (17) that passes in external terminal (21), external insulation plate (20), seal ring (13) and the housing (1) by outside and positions; At sliding shaft rod (5) and be provided with the adjusting screw (16) of the two spacing of can regulate between by magnet absorbing plate (3).

In use, sliding shaft rod is under the hydraulic action of water heating system, (this moment, electromagnet was in the energising situation by magnet absorbing plate and electromagnet in promotion, be adsorbed on the electromagnet firmly by magnet absorbing plate), and drive the circle shell, by sliding sleeve valve is driven, finish the purpose of opening blast tube, when hydraulic pressure disappeared, sliding shaft rod disappeared to the thrust of electromagnet thereupon, and this moment, valve was closed blast tube under the effect that opens and closes spring; Owing under the above-mentioned motion state, be the rigidity friction between sliding sleeve and the sleeve pipe, so its frictional force is less,, thereby the power of reducing friction of the present utility model, saving power have been reached, prevent the purpose of leaking gas simultaneously owing to being all-sealed structure between housing and the valve body.When valve opening, run into abnormal state (hindering outage inadequately or for some reason) when electromagnetic force disappears automatically as electric power, because above-mentioned frictional force is less, make valve under the effect that opens and closes spring, overcome the effect of Returnning spring in the round shell rapidly, accomplish to close definitely and effectively blast tube, prevent gas water-heater gas leakage, thereby improve its Safety performance.The improvement of above-mentioned terminal has not only prevented the leakage that the insulation rubber of combustion gas by lead produces effectively, has further improved the Safety performance of gas water-heater, and has made it more convenient when assembling.

Claims (3)

1, a kind of novel hydraulic pressure linkage type gas electromagnetic valve, mainly be by valve body (8), sliding shaft rod (5), solenoid valve, valve (10), open and close spring (9), housing (1) and external terminal (21) are formed, wherein solenoid valve is by electromagnet (4), formed by magnet absorbing plate (3) and associated tracks (14), sliding shaft rod (5) is joined by magnet absorbing plate (3) with solenoid valve, valve (10) is fixed on an end of sliding sleeve (6), be provided with between valve (10) and the valve body (8) and open and close spring (9), it is characterized in that above-mentioned electromagnetic valve device is in the round shell (2) of a sealing, be provided with Returnning spring (15) between the interior edge face of magnet absorbing plate (3) and circle shell (2) afterbody, electromagnet (4) then is fixed in another interior edge face of round shell (2), the winding wire of electromagnet (4) is then drawn by the front-end face of circle shell (2), be embedded in line groove along circle shell outer rim, and be connected with negative terminal (18) with the set positive terminal (17) of the interior edge face of housing (1) respectively, this positive terminal (17) is installed on the interior insulation board (19), the tail end of terminal is provided with internal thread, in then being arranged on, negative terminal (18) between insulation board and the housing, offers the breach and the irregular end face that can match on the interior insulation board (19) with the bump body on housing (2) interior edge face.

2, a kind of novel hydraulic pressure linkage type gas electromagnetic valve according to claim 1, it is characterized in that being provided with between above-mentioned external terminal (21) and the housing (1) an external insulation plate (20), be provided with the seal ring (13) of flange shape outside between insulation board (20) and the housing (1), a location screw (11) is passed the threads engaged of the positive terminal (17) that passes in external terminal (21), external insulation plate (20), seal ring (13) and the housing (1) by outside.

3, a kind of novel hydraulic pressure linkage type gas electromagnetic valve according to claim 1 is characterized in that at sliding shaft rod (5) and is provided with the adjusting screw (16) of the two spacing of can regulate between by magnet absorbing plate (3).

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