CN2240125Y - Water pressure regulator for ignition switch of water heater - Google Patents

Abstract

The utility model relates to a water pressure regulator for an ignition switch of a water heater. A differential pressure water disk is composed of an upper disk, a lower disk and a film clamped in the middle of the upper disk and the lower disk. The upper end of an outer stretched ejector rod of the water disk is sheathed and connected with a push rod which is movably sheathed with two spaced push rings, and a spring is sheathed between the two push rings. The outside of a sleeve barrel of the differential pressure water disk is fixed with a microswitch, a touching rod is arranged on the upper part of a lower push ring which is positioned in an inner cavity of the sleeve barrel, the other end of the touching rod is interworked with the microswitch, and an adjusting screw cap is screwed in a screw hole at the middle part of the sleeve cover and is in contact with the upper push ring. The peripheral wall of the sleeve barrel is provided with a gas intake path which is communicated with a gas source. The lower peripheral edge of the lower push ring can be provided with a valve which can switch on or switch off the communication of the gas intake path and a gas supply path to carry out the gas supply and the ignition simultaneously.

Description

The water pressure adjusting device of water heater water lighting switch

The utility model relates to a kind of water heater, particularly a kind of pressure regulation device of water heater water spot switch.

The operation principle of traditional water lighting formula water heater be equiped with in utilizing film pressure differential disc action and touch microswitch, just when the hot water tap opens, the pressure that the current of introducing produce is heaved film to a side, then driving an overhanging push rod when film is heaved does flexible and drives a valve block to move, valve block then touches the one stroke switch in motion process, when travel switch is contacted, conducting one magnetic valve and be engaged in the igniting of coal gas with magnetic valve then.Though this structure has certain practicality, exist following problem.

The the 1st: because skyscraper often adopts the staged mode to supply water, be that certain number of plies is used a water pump, and another fixed layer uses another set of water pump to supply water, the way of supplying water of taking high-order water pot is also arranged, then utilize the mode of water tower supercharging to supply water in many small and medium-sized cities, the latter exists insufficient pressure, and the above two then can occur producing different hydraulic pressure because of the difference of the inhabitation number of plies, when hydraulic pressure is excessive, not only can cause the great vibrations sound when opening, and easily cause the damage of member.As hydraulic pressure when not enough, easily cause the instability of lighting a fire, sometimes, can cause leaking and the generation of fire of combustion gas.So there is hidden danger.That is to say that the action of ignition switch can not be adjusted by the size of actual hydraulic pressure.

The 2nd: because the working procedure of present ignition switch is to turn on the gas-fire earlier, light a fire then, a Delay Process is promptly arranged, not only easily become flat, not efficient and convenient in the operation yet, when being used, some the elderlys or child comparatively worry.

The purpose of this utility model just is to overcome the above-mentioned shortcoming and defect of prior art, and a kind of size of visual actual pressure of supply water is provided and sets the opening pressure of igniting, to reach the saving supercharging equipment, improve the water pressure adjusting device that ignition conditions also can be finished the water heater water lighting switch of gas circuit switching and igniting synchronously.

The purpose of this utility model is to realize by following technical scheme: on one, the film of lower wall and middle part clamping thereof constitutes a pressure reduction water pond, outer spy push rod upper end at water pond interlocks a push rod, be movably installed with two separately throw-out collars on the push rod, cover is placed with spring between throw-out collar, sleeve external stability at the pressure reduction water pond has microswitch, touch bar on the lower baffle ring top that is positioned at barrel bore, touch the bar other end and little on-off action of touching, one adjusts stubborn being placed in the screw of upper shield middle part and with last throw-out collar of nut contacts, on the sleeve perisporium, offer a combustion gas inlet channel that communicates with source of the gas, following throw-out collar next week is along locating to be arranged to a valve that makes inlet channel be conducting or end, so that air feed and ignition energy carry out synchronously.

Therefore: remarkable result of the present utility model is:

The the 1st: owing to be adjustable springs pressure by regulating screwing of nut, therefore, also with regard to the corresponding size that acts on the pressure on film top in the pressure differential disc of having regulated, make this actuating pressure regulate coupling by the actual hydraulic pressure of energy jack-up film, all can be accurately no matter to reach under which kind of hydraulic pressure film, move and finish the ignition operation behind the touch switch apace.It is excessive and cause the pipe-line system vibration and pressure is less than normal and problem that microswitch can not normally be opened to have solved pressure, can improve gas heater under the various different water pressure situations adaptability and the stability and the reliability of work.

The 2nd: because its igniting can normally carry out under different hydraulic pressure situations, thereby, can improve security and operational convenience in the use of water heater.

The 3rd: because its igniting can carry out under different hydraulic pressure states, thereby, even in hydraulic pressure water system on the low side, also need not to set up the use needs that supercharging equipment satisfies water heater.

The 4th: because in microswitch action igniting, its overhanging driving lever can make the valve that is positioned at the inlet channel place also can open synchronously, historical facts or anecdotes has showed carrying out synchronously of igniting and ventilation, can improve security.

Concrete structure of the present utility model is realized by the following examples and accompanying drawing thereof:

Fig. 1 is the construction profile figure of the utility model embodiment 1

Fig. 2 is the STRUCTURE DECOMPOSITION figure of Fig. 1

Fig. 3 is the section of structure of Fig. 1

Fig. 4 is the fundamental diagram of Fig. 1

Fig. 5 is the installation site schematic diagram of the utility model on water heater.

Fig. 6 is the STRUCTURE DECOMPOSITION figure of the utility model embodiment 2

Fig. 7 is the section of structure after Fig. 6 makes up

Fig. 8 is the fundamental diagram of Fig. 6

Be described in detail below in conjunction with 1-8 pairs of concrete structures of the present utility model of accompanying drawing.

The utility model has a pressure differential disc 30a who is made of the film 3a of up and down lid 2a and 2a and middle clamping thereof, circumferentially be connected with flow tube 21a at pressure differential disc, flow tube 21a and pressure differential disc 30a intracavity inter-connection, along offering a hole 111a on the axially extended sleeve 11a of the pressure differential disc 30a perisporium, be fixed with little switch 12a that touches on the sleeve 11a perisporium in the hole outside, little driving lever 52a and outside ignition mechanism that touches in switch 12a and the hole 111a acts on mutually, the driving lever 52a other end drives the top by the motive power of the push rod 62a that stretches out of pressure differential disc 30a, it is characterized in that: be connected with at the epimere cover of push rod 62a and lose throw-out collar 81a, the cover support of following throw-out collar 81a top has spring 8a, spring 8a upper end is buckled with a upper baffle ring 82a, spring 8a, on, the overhanging section sleeve 11a inside of extending protrusion vertically that all is positioned at pressure differential disc 30a top of following throw-out collar 81a and 82a and push rod 62a, the end that extends at sleeve 11a is buckled with top cover 4a, top cover 4a go up to twist and to be placed with one and to regulate bolt 5a, leans in the middle part of the lower end of regulating bolt 5a and the upper baffle ring 82a and the spring 8a that will go up throw-out collar 82a bottom compresses vertically.Referring to Fig. 2, Fig. 3 and Fig. 7

Architectural feature of the present utility model also is:

Constitute the 1a of lid up and down of pressure differential disc 30a and the plate-like that 2a is hollow, be clamped in film 3a middle part downside between the two hollow discoid bodies and be a solid boss portion 32a who contacts or break away from lower cover 2a inwall, be provided with an annular groove 31a and pit 15a and 23a corresponding position had pod apertures 34a at the upper surface of film 3a at itself and lid button up and down, the lamellar body 61a of one push jack 6a is positioned at the top of the solid boss portion 32a of film 3a, the push rod 62a that go up to visit at lamellar body 61a center is passed by upper cover body 1a central movable, and sleeve 11a is the independently extension hollow tube that the hollow sleeve or of an evagination that is connected as a single entity with upper cover body 1a is fixed in upper cover body 1a top.Referring to Fig. 3 and Fig. 7

The hollow sleeve 11a of the evagination that is connected as a single entity with upper cover body 1a is one stepped, push rod 62a in stepped sleeve 11a is two sections series connection structures, the hypomere 71a of the serial connection epimere 7a of push rod 62a twists cover with following throw-out collar 81a and is connected, visit after serial connection epimere 7a passes spring 8a and goes up throw-out collar 82a and stretch in the centre bore 51a that regulates bolt 5a, the lower open mouth top cover 4a of band center screw 41a goes up stubborn mutually the linking of thread segment 131a with sleeve 11a and connects.Referring to Fig. 2 to Fig. 5

Stepped sleeve 11a is and connects shape up and down, the interior spy end of unsteady driving lever 52a in the hole 111a of its perisporium is positioned at and contacts above the edge of following throw-out collar 81a and with following throw-out collar 81a or break away from, push rod 62a upper end and the lower end counterbore facies suite insert that is connected in series epimere 7a, lamellar body 61a wears on top and is lined with sealing gasket 63a.Referring to Fig. 3 and Fig. 4

Be divided into the two sections tubular chambers by independently extending the sleeve 11a that hollow tube forms, its hypomere chamber 1112a and pressure differential disc 30a cover are solid, be placed with throw-out collar 81a up and down in its epimere chamber 113a, 82a and spring 8a, epimere chamber 113a and inlet channel 10a connect, following throw-out collar 81a is inserted at the valve opening 102a place, corner of epimere chamber 113a and inlet channel 10a extension and forms an open and close type valve, push rod 62a is connected in series and constitutes with its outer section of visiting by the epimere 7a of reducing, and the endoporus 1141a of epimere and hypomere chamber 112a and 113a middle transitional section 114a is passed in the epimere 7a activity of its reducing.Referring to Fig. 6 to Fig. 8

Have one with the epimere 7a upper end of reducing and regulate the counterbore 812a that bolt 5a lower end cover is inserted with the axial outside of the 81a of throw-out collar up and down of spring 8a upper and lower side cover support and 82a, the adapter sleeve 53a of epimere 7a that is fixed on serial connection push rod 62a and reducing with driving lever 52a that microswitch 12a acts on mutually is circumferential.Referring to Fig. 6 to Fig. 8

The sleeve 11a middle transition section 114a top that is formed by the extension hollow tube is the extension 101a that communicates with inlet channel 10a and another pressure differential disc 50b valve 501b of place, following throw-out collar 81a is separated into inlet channel 10a and its extension 101a by shape or perforation shape, and last throw-out collar 82a circumferentially is with the sealing ring 821a with the sealing of epimere chamber 113a endoporus.Referring to Fig. 7 and Fig. 8

The valve opening 102a that constitutes between throw-out collar 81a lower surface and epimere chamber 113a and inlet channel 10a and the extension 101a under the circle that rubber is made goes up the hole along sealing or the conducting of leaning, the flexible vertically and same moved further of the epimere 7a of following throw-out collar 81a and push rod 62a and reducing.Referring to Fig. 7 and Fig. 8

The epimere 7a stage casing of reducing is a reduced diameter section 72a, in reduced diameter section 72a, be with sealing ring 73a, the sealing ring 73a sealing that contacts with the endoporus 1141a of changeover portion 114a, the lower end of the epimere 7a of reducing and circular adapter sleeve 53a top endoporus be sleeve mutually, and the bottom counterbore 53b of adapter sleeve 53a and the upper end of push rod 65a be sleeve mutually.Referring to Fig. 6

The periphery of regulating bolt 5a is marked with the sign scale that adapts with pressure of supply water and determine to go up throw-out collar 82a lower springs 8a compressive strength.

Operation principle of the present utility model is as follows:

At first see the operation principle of Fig. 1 to first embodiment shown in Figure 5, after the hot water tap opens, then current are entered in the valve for pressure difference 30a inner chamber by current adapter 21a, and make film 3a be stressed ejection and present drum type, referring to Fig. 4, because the upward drum of film 3a makes the push rod 62a that is positioned at its top move synchronously and promote down throw-out collar 81a and moves synchronously, spring 8a pressurized is contractd to contact with the free end of driving lever 52a after moving certain position last, because of microswitch 12a is opened in the continuation ejection that driving lever 52a is risen by throw-out collar 81a, so that microswitch deactivation magnetic valve, and utilize magnetic valve to go to light a fire.After the hot water tap closes, because of film 32a does not have the pressure effect, self-return under the effect of spring 8a elastic force then, and throw-out collar 81a also breaks away from thereupon moving down and the contacting of driving lever 52 down, microswitch 12a is closed immediately, returns to former flameout state.Referring to Fig. 3

All depend on because of correctly whether lighting a fire as soon as possible throw-out collar 81a down can on move, also just says, be decided by the interior film 32a of pressure differential disc 30a can be pushed by hydraulic pressure and overcome spring 8a elastic force and on move.

Therefore, when water pressure during greater than spring 8a elastic force, just can normal ignition, but pressure too conference causes vibrating noise and loss to system, and water pressure then can not normally be lighted a fire during less than spring 8a elastic force, therefore, untimely and produce the combustion gas accident that leaks with regard to Yi Fashengyin igniting.Former water heater existing questions that Here it is, the size that the starting pressure of its ignition switch can not the viewing system water supply pressure and adjusting just, because, it is difficult for changing at any time spring 8a in the valve body of packing into, therefore, utilizing bolt 5a to regulate way to the decrement of last throw-out collar 82a, to reach that point of adjustment pressure ignition and systematic Water supply pressure adapt then be easy and the most feasible a kind of way, promptly when systematic Water supply pressure is on the low side, then with bolt 5a outward turning, the pressure of its compression spring 8a is reduced, like this, hydraulic pressure on the low side just can be with film 32a jack-up, otherwise, when hydraulic pressure is higher, bolt 5a can be screwed in, make the compressive strength of spring 8a can improve also and can adapt with actual pressure of supply water.

If go out scale in the marking in advance of adjustment nut 5a outer surface, and this scale is set with each floor pressure reduction that top layer water tower water supply in the skyscraper is caused, just adjust the nut amount of being screwed into by each layer supply head in advance, can be complementary with actual hydraulic pressure to reach igniter pressure, convenience is provided for the water heater Installation and Debugging.

The operation principle of the utility model the 2nd embodiment is similar substantially with embodiment 1, referring to Fig. 6 to Fig. 9, difference is that its valve body partly is arranged on water heater pipeline inside, be that it is by loam cake 2a, the pressure differential disc 30a that lower cover 1a and film 3a constitute is loaded on the place, aperture of the lower chambers 112a of pipeline, and former be arranged in the loam cake 2a epirelief sleeve 11a on, following throw-out collar 81a, 82a then is installed in the pipeline that constitutes after the reduced, simultaneously, push rod 62a overhanging in the pressure differential disc 30a is prolonged into the structure of two sections serial connections, one section is push rod 62a, one section is push rod epimere 7a, and circumferentially be designed to branch road connected state with combustion gas inlet channel 10a at the sleeve 11a that has dwindled, and constitute a valve to be opened/closed in inlet channel 10a and its extension 101a corner, this valve is to be made of the closure of following throw-out collar 81a that is positioned at push rod epimere 7a top and valve opening 102a or unlatching, just, as the film 3a in the pressure differential disc 30a during by hydraulic pressure jack-up, move on the push rod 62a and promote its epimere 7a and move on also, and driving lever 52a opens microswitch 12a to implement igniting, at the same time, following throw-out collar 81a is also by push rod epimere 7a jack-up, make valve opening 102a be the unlatching shape, combustion gas is then entered by inlet channel 10a and finishes synchronous air feed in the extension 101a, otherwise, when pressure differential disc 30a is failure to actuate, following throw-out collar 81a blocks from being about to gas circuit, the pressure differential disc 50b and the valve sets 501b that after combustion gas infeeds, then cooperate water heater, with control main major fire 502b, auxiliary female fiery 503b and induction electrode 504b, the 505b operation of lighting a fire.Referring to Fig. 7 and Fig. 8, and the igniter pressure adjustment is identical with embodiment 1, just its application point fall within down throw-out collar 81a and valve opening 102a on pressure.

Claims (10)

1, the water pressure adjusting device of water heater water lighting switch, have one and (2a) and the pressure differential disc (30a) of the film of middle clamping (3a) formation by lid (1a) up and down, circumferentially be connected with flow tube (21a) at pressure differential disc, flow tube (21a) and pressure differential disc (30a) intracavity inter-connection, along offering a hole (111a) on the axially extended sleeve of pressure differential disc (30a) (11a) perisporium, be fixed with little switch (12a) that touches on sleeve (11a) perisporium in the hole outside, little driving lever (52a) and outside ignition mechanism that touches in switch (12a) and the hole (111a) acts on mutually, driving lever (52) other end drives the top by the motive power of the push rod that stretches out (62a) of pressure differential disc (30a), it is characterized in that: cover is connected with throw-out collar (81a) in the upper end of push rod (52a), the cover support of following throw-out collar (81a) top has spring (8a), spring (8a) upper end is buckled with throw-out collar on (82a), spring (8a), up and down throw-out collar (81a) and (82a) and top (62a) overhanging section all be positioned at pressure differential disc (30a) top extend sleeve (11a) inside of protruding vertically, the end that extends at sleeve (11a) is buckled with top cover (4a), top cover (4a) go up to be twisted and to be placed with one and to regulate bolt (5a), leans in the middle part of the lower end of regulating bolt (5a) and the last throw-out collar (82a) and the spring (8a) that will go up throw-out collar (82a) bottom compresses vertically.

2, water pressure adjusting device according to the described water heater water lighting of claim 1 switch, it is characterized in that: constitute the lid up and down (1a) of pressure differential disc (30a) and (2a) be the plate-like of hollow, be clamped in film (3a) middle part downside between the two hollow discoid bodies and be a solid boss portion (32a) that contacts or break away from lower cover (2a) inwall, the upper surface of film (3a) be provided with an annular groove (31a) and its with lid button up and down to pit (15a) and (23a) corresponding position have pod apertures (34a), the lamellar body (61a) of one push jack (6a) is positioned at the top of the solid boss portion of film (3a) (32a), the push rod (62a) of go up visiting at lamellar body (61a) center is passed by upper cover body (1a) central movable, and sleeve (11a) is the independently extension hollow tube that the hollow sleeve or of an evagination that is connected as a single entity with upper cover body (1a) is fixed in upper cover body (1a) top.

3, water pressure adjusting device according to the described water heater water lighting of claim 2 switch, it is characterized in that: the hollow sleeve (11a) of the evagination that is connected as a single entity with upper cover body (1a) is one stepped, push rod (62a) in stepped sleeve (11a) is two sections series connection structures, the hypomere (71a) of the serial connection epimere (7a) of push rod (62a) is twisted cover with following throw-out collar (81a) and is connected, visit after serial connection epimere (7a) passes spring (8a) and goes up throw-out collar (82a) and stretch in the centre bore (51a) of regulating bolt (5a), the lower open mouth top cover (4a) of band center screw (41a) is gone up stubborn mutually the linking of thread segment (131a) with sleeve (11a) and is connect.

4, according to the water pressure adjusting device of the described water heater water lighting of claim 3 switch, it is characterized in that: stepped sleeve (11a) is and connects shape up and down, the interior spy end of the unsteady driving lever (52a) in the hole (111a) of its perisporium is positioned at the top, edge of following throw-out collar (81a) and contacts with following throw-out collar (81a) or break away from, push rod (62a) upper end and the lower end counterbore facies suite insert that is connected in series epimere (7a), lamellar body (61a) top is worn and is lined with sealing gasket (63a).

5, water pressure adjusting device according to the described water heater water lighting of claim 2 switch, it is characterized in that: be divided into the two sections tubular chambers by independently extending the sleeve (11a) that hollow tube forms, its hypomere chamber (112a) is solid with pressure differential disc (30a) cover, be placed with throw-out collar (81a) up and down in its epimere chamber (113a), (82a) and spring (8a), epimere chamber (113a) connects with inlet channel (10a), following throw-out collar (81a) is inserted at the epimere chamber (113a) and the corner valve opening (102a) of inlet channel (10a) extension locates and forms an open and close type valve, push rod (62a) is be connected in series formation by the outer section of visiting of the epimere (7a) of reducing and its, and epimere and hypomere chamber (112a) and (113a) endoporus (1141a) of middle transitional section (114a) are passed in the epimere of its reducing (7a) activity.

6, according to the water pressure adjusting device of the described water heater water lighting of claim 5 switch, it is characterized in that: have one with epimere (7a) upper end of reducing and regulate the counterbore (812a) that bolt (5a) lower end cover is inserted with the axial outside of the following throw-out collar (81a) of spring (8a) upper and lower side cover support, (82a), be fixed on push rod (62a) with driving lever (52a) that microswitch (12a) act on mutually and be connected in series reducing push rod epimere (7a) adapter sleeve (53a) circumferentially.

7, according to the water pressure adjusting device of the described water heater water lighting of claim 5 switch, it is characterized in that: sleeve (11a) middle transition section (114a) top that is formed by the extension hollow tube is to locate the extension (101a) that valve (501b) communicates with inlet channel (10a) and another pressure differential disc (50b), and following throw-out collar (81a) is separated into inlet channel (10a) and its extension (101a) by shape or perforation shape.

8, according to the water pressure adjusting device of the described water heater water lighting of claim 7 switch, it is characterized in that: the valve opening (102a) that constitutes between the extension (101a) of (81a) lower surface of throw-out collar under the circle that rubber is made and epimere chamber (113a) and inlet channel (10a) is gone up the hole along sealing or the conducting of leaning, and following throw-out collar (81a) is flexible vertically and same moved further with the epimere (7a) of push rod (62a) and reducing.

9, according to the water pressure adjusting device of the described water heater water lighting of claim 6 switch, it is characterized in that: the epimere of reducing (7a) stage casing is a reduced diameter section (72a), in reduced diameter section (72a), be with sealing ring (73a), sealing ring (73a) sealing that contacts with the endoporus (1141a) of changeover portion (114a), the lower end of the epimere of reducing (7a) and circular adapter sleeve (53a) top endoporus be sleeve mutually, and the bottom counterbore (53b) of adapter sleeve (53a) and the upper end of push rod (65a) be sleeve mutually.

10, according to the water pressure adjusting device of the described water heater water lighting of claim 1 switch, it is characterized in that: the periphery of regulating bolt (5a) is marked with the sign scale that adapts with pressure of supply water and determine to go up throw-out collar (82a) lower springs (8a) compressive strength.

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