CN2202866Y

CN2202866Y - Timing switch for gas valve

Info

Publication number: CN2202866Y
Application number: CN 94239485
Authority: CN
Inventors: 魏本洋
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-10-18
Filing date: 1994-10-18
Publication date: 1995-07-05
Anticipated expiration: 2004-10-18

Abstract

A gas valve timing switch comprises a timer and a gas valve, wherein a linkage mechanism is respectively arranged on a timer main shaft and a valve main shaft, a positioning disc and a sensing pusher dog are also arranged on the timer main shaft, a positioning clamping arm is arranged between the timer main shaft and the valve main shaft, when a valve core is in a gas opening or closing position, a right clamping block or a left clamping block on the positioning clamping arm is pressed downwards and embedded into a corresponding valve closing or valve opening bayonet, a knob is twisted to open and position the gas valve through the linkage mechanism, the knob is then twisted reversely to enable the timer to automatically work until the timing is finished, a position returning mechanism fixed on the linkage mechanism enables the linkage mechanism to reset, and the gas valve is closed.

Description

Timing switch for gas valve

The utility model relates to a kind of burnt gas valve time switch of the safety device that is used for gas kitchen ranges, particularly a kind of mechanical drive mode.

Existing gas kitchen ranges is not owing to not regularly close the valve function, thereby often has and dryout pot, boil phenomenon such as burnt food and take place, and also may cause the combustion gas flare to extinguish because the excessive pot of soup is outer when serious, cause personnel's combustion gas intoxication accident.

The utility model purpose provide a kind of can be according to people's wish, timing automatic burnt gas valve and the subsidiary burnt gas valve time switch of reporting to the police of closing.

The utility model purpose is achieved in that commercially available timer and burnt gas valve is bearing on the internal partition of a shell, has two to connect and chew on burnt gas valve, and one connects gas inlet pipe with flexible pipe, and another connects gas kitchen ranges with flexible pipe.The link gear of switch spool is installed on timer spindle and the valve main shaft that is connected with spool respectively; On timer spindle, be equipped with also that available timer spindle stirs, in order to the positioning disk of the band contact pin of location spool open and close position and with the timer spindle sensing pusher dog of rotation synchronously; Individual being bearing on the internal partition arranged, locator card arm between timer and burnt gas valve, when spool is in when closing the combustion gas position, the right fixture block that is connected with stage clip on the locator card arm presses down and embeds in the pass valve bayonet socket on the positioning disk, when need regularly use combustion gas, turn the turn-knob on the timer spindle, timer spindle drive sensing pusher dog disengaging contact pin rotates to another contact pin contact on the positioning disk, and promotion positioning disk rotation, meanwhile, pass through link gear, spool in the burnt gas valve just is in opens the combustion gas position, because a small amount of transposition of positioning disk, lift on the locator card arm in the right fixture block forcing, make the left fixture block on the locator card arm press down and embed opening in the valve bayonet socket of link gear, promptly be positioned so open the combustion gas position; An individual mechanism that returns is arranged, one end is fixed on the link gear, the other end is fixing in the enclosure, after opening spool, reverse rotation timer spindle turn-knob is to a certain timing position, allow timer spindle rotate to the position of the initial contact contact pin of sensing pusher dog automatically, and the reverse rotation of promotion positioning disk embeds pass valve bayonet socket extremely until right fixture block under the stage clip effect, simultaneously, left side fixture block lifts rapidly, under the restoring force effect of returning a mechanism, make link gear return the position to closing the combustion gas position by the spool that inactive state becomes in the rapid drive burnt gas valve, regularly finish.Described link gear has two kinds of schemes, and a kind of is gear drive, and another kind is a projection hauling rope mechanism, all can pass through the rotary timer main shaft, drives the valve main axis rotation, spool is in closes or open the combustion gas position.No matter which kind of scheme is connected with bell in the spool rear end, and when closing burnt gas valve, the bell clapper that is connected with flexure strip by being located at locator card arm left end knocks bell once, to show warning.

The utility model can play the fuel gas path effect of timing turning off gas kitchen ranges according to people's wish, avoids boiling burnt food, dryouies pot and waits personage's accident to take place.

Give to describe in detail below in conjunction with accompanying drawing

Fig. 1 is the major part decomposing state figure of gear drive for the utility model comprises link gear.Frame of broken lines label ［ 31 ' ］ is depicted as the stereogram of observing positioning disk 31 from two kinds of different angles, and frame of broken lines label ［ 34 ' ］ is depicted as the stereopsis intention of major part in the timer 34.

Fig. 2 is the major part decomposing state figure of projection hauling rope mechanism for link gear in the utility model.

Fig. 3 is the structural representation of gear drive for the utility model comprises link gear, and frame of broken lines is represented timer ［ 34 ］.

Fig. 4 is Fig. 3 D-D cutaway view, is that gear drive is in the structural representation when closing the combustion gas position.

Fig. 5 is the sensing pusher dog ［ 30 ］ of Fig. 4, positioning disk ［ 31 ］, the rearview of right fixture block ［ 36 ］ etc.

Fig. 6 is that gear drive is in the structural representation when opening the combustion gas position for Fig. 3 D-D analyses and observe.

Fig. 7 is that Fig. 3 E is to partial sectional view.

Fig. 8 is a projection hauling rope structural scheme of mechanism for the utility model comprises link gear.

Fig. 9 is Fig. 8 G-G cutaway view, is that projection hauling rope mechanism is in the structural representation when closing the combustion gas position.

Figure 10 is Fig. 8 G-G cutaway view, is that projection hauling rope mechanism is in the structural representation when opening the combustion gas position.

Figure 11 replaces the axle sleeve ［ 65 ］ that returns position dish ［ 55 ］ and be with bayonet socket ［ 63 ］ and changes structural representation for transmission sleeve pipe ［ 25 ］ for return position dish ［ 64 ］ with the abnormal shape of band key ［ 62 ］.

Figure 12 is that the F of Figure 11 is to view.

Embodiment one:

A kind of burnt gas valve time switch, it has a shell ［ 61 ］, the dividing plate upper support has timer ［ 34 ］ and burnt gas valve ［ 7 ］ within it, burnt gas valve has two and connects and chew ［ 2 ］, one connects to chew with flexible pipe and connects gas inlet pipe, another connects gas kitchen ranges with flexible pipe, there is individual taper valve core ［ 11 ］ to be installed in the taper hole of valve, be connected with bell ［ 3 ］ in the rear end of valve core, give to fix with nut ［ 1 ］ and spring washer ［ 4 ］, the passage ［ 12 ］ and the backing pin ［ 13 ］ that can communicate with valve pipeline are arranged on the spool, when spool is in when closing or opening the combustion gas position, limited screw ［ 8 ］ the indentation, there location that spool tightens up by the nut ［ 10 ］ of backing pin in the valve end.Respectively in timer spindle ［ 39 ］, be equipped with out on the valve main shaft ［ 17 ］ that is connected with spool, close the link gear of spool ［ 11 ］ usefulness, the link gear of present embodiment is a gear drive, by the driving gear ［ 42 ］ that is enclosed within on the timer spindle, slide over half toothed disc ［ 15 ］ on the valve main shaft, the supporting in the enclosure and with driving gear and the intermeshing idler gear of half toothed disc ［ 14 ］, can with the synchronous ratchet ［ 45 ］ of rotation of timer spindle ［ 39 ］, contact with jump ring ［ 41 ］, and, be enclosed within the transmission sleeve pipe compositions such as ［ 25 ］ on the flat axle ［ 22 ］ that is connected as a single entity with the valve main shaft with the drag-line groove ［ 21 ］ that pin ［ 47 ］ is connected with driving wheel and rotating ratchet ［ 44 ］ is connected with half toothed disc.Aperture ［ 43 ］ on the driving gear ［ 42 ］ is as fixing jump ring ［ 41 ］ usefulness, ratchet ［ 45 ］ has unidirectional bayonet socket ［ 46 ］ individual and ratchet tip tabling, so that utilize ratchet during by turn-knob ［ 49 ］ rotary timer main shaft, detent mechanism makes the driving gear rotation, individual protruding block ［ 40 ］ is arranged on the timer spindle, be used for fixing the interior ring spring of timer and use.The projection ［ 27 ］ of transmission sleeve pipe front portion and recess ［ 23 ］ insert respectively in the garden arc groove ［ 28 ］ and inclined-plane projection ［ 16 ］ on half toothed disc, but projection and recess also conventional design become to be positioned at the front end of the transition block ［ 24 ］ of drive sleeve tube end.Have and return a mechanism one end and be fixed on the link gear, the other end is fixed in the shell ［ 61 ］.A mechanism that returns of present embodiment is made up of interconnected spring ［ 48 ］ and drag-line ［ 20 ］, certainly also can be separately with spring as returning a mechanism, to be an end of going up drag-line ［ 20 ］ around drag-line groove ［ 21 ］ be connected with fixed leg ［ 19 ］ on half toothed disc in the link gear drag-line.In the timer spindle rear end, the positioning disk ［ 31 ］ of the band contact pin of stirring with timer spindle ［ 33 ］ and the sensing pusher dog ［ 30 ］ that rotates synchronously with timer spindle also are installed by axle tail ［ 38 ］.Individual being bearing on the internal partition arranged, locator card arm between timer and burnt gas valve, at initial position, also be that spool is in when closing the combustion gas position, the right fixture block ［ 36 ］ that is connected with stage clip ［ 35 ］ on the locator card arm presses down, and in the pass valve bayonet socket ［ 32 ］ on the embedding positioning disk, near the stop pin ［ 37 ］ the right fixture block blocks timer ［ 34 ］ inner driving wheel simultaneously.Sensing pusher dog this moment ［ 30 ］ contacts with the B point of contact pin ［ 37 ］ on the positioning disk ［ 31 ］.The turn-knob ［ 49 ］ of rotary timer spindle nose when using the utility model, make timer spindle drive the sensing pusher dog and contact back (A, B angle are about 270 °) with the A point of contact pin ［ 33 ］, and can promote the positioning disk rotation, force right fixture block ［ 36 ］ to break away from and close valve bayonet socket ［ 32 ］ position.Meanwhile by gear drive, inclined-plane projection ［ 16 ］, garden arc groove ［ 28 ］ and the projection ［ 27 ］, the recess ［ 23 ］ that drive on half toothed disc interact, just make the valve main shaft drive spool passage ［ 12 ］ and aim at the valve blast tube, spool is in opens the combustion gas position, and the valve bayonet socket ［ 18 ］ of opening on half toothed disc on the link gear is put in place, the left fixture block ［ 9 ］ of timing card arm presses down, and embed and to open in the valve bayonet socket ［ 18 ］, spring ［ 48 ］ and drag-line ［ 20 ］ are strained.Continue after, user's reverse rotation turn-knob ［ 49 ］ is to the position that needs timing, timer spindle rotates automatically, this moment, link gear did not rotate, when the sensing pusher dog contacts the B point of contact pin again, force the positioning disk reverse rotation to closing the valve bayonet socket when putting in place, under stage clip ［ 35 ］ effect, force piece under the right fixture block ［ 36 ］, and in the pass valve bayonet socket on the embedding positioning disk, left fixture block ［ 9 ］ is separated from valve bayonet socket ［ 18 ］ simultaneously, and along under the effect of drag-line groove, half toothed disc is inverted to initial position by drive sleeve pipe racks movable valve main shaft at drag-line.The bell clapper ［ 5 ］ left end and that be connected with flexure strip ［ 6 ］ that is located at the locator card arm simultaneously will knock bell ［ 3 ］ to show warning.In the time of need not using time switch as the user, only need valve turn-knob ［ 29 ］ is pulled out backward, make projection ［ 27 ］ and recess ［ 23 ］ break away from garden arc groove ［ 28 ］, inclined-plane projection ［ 16 ］ respectively, twist turn-knob ［ 29 ］, fuel gas pipeline is communicated, gear drive does not rotate, and after loosing one's grip, by the arch shrapnel ［ 26 ］ that is installed between turn-knob and the excessive piece ［ 24 ］ spool is compressed.

Embodiment two:

Do not exist together with embodiment one, be that link gear is a projection hauling rope mechanism, by the fan-shaped bump ［ 60 ］ and the breach ［ 59 ］ that are set on the timer spindle ［ 39 ］, ［ 55 ］ are coiled in the position of returning that slides over the tape spool cover ［ 57 ］ on the valve main shaft ［ 17 ］, be enclosed within the torsion spring ［ 50 ］ on the axle sleeve ［ 57 ］ successively, sheave ［ 51 ］, be enclosed within the transmission sleeve pipe ［ 25 ］ on the flat axle ［ 22 ］ that is connected as a single entity with the valve main shaft, and hauling rope ［ 54 ］ is formed, torsion spring ［ 50 ］ one ends are fixed tightly on the shell ［ 61 ］, the other end contacts with fixed leg ［ 52 ］ on the sheave, hauling rope ［ 54 ］ is respectively on fan-shaped bump and sheave, returning position dish end face has individual take off post ［ 56 ］ can insert in the garden arc groove ［ 53 ］ of sheave, projection ［ 27 ］ that transmission sleeve pipe ［ 25 ］ is anterior and recess ［ 23 ］ can insert respectively in the garden arc groove ［ 28 ］ and inclined-plane projection ［ 16 ］ that returns on the dish of position, an end that returns the drag-line ［ 20 ］ in the mechanism with return the position dish and be connected, when returning disc spins, can make drag-line in rope groove ［ 58 ］, turn turn-knob ［ 49 ］, pass through hauling rope, drive sheave successively, return the position dish, transmission sleeve pipe etc. just can make the valve main axis rotation, spool is in opens the combustion gas position, at this moment, left fixture block ［ 9 ］ presses to embed and returns opening in the valve bayonet socket ［ 18 ］ on the dish of position.Compare with embodiment one, the sensing pusher dog goes to the A point by the B point, spool is in opens the combustion gas position, angle is about 105 ° between A, B, owing to have the breach ［ 59 ］ behind the individual fan-shaped bump to exist, so although spool is put in place, but timer spindle still can continue manual rotation, hauling rope ［ 54 ］ tension degree is constant, and sheave can not rotate, and timing range can be enlarged.

Embodiment three:

With implementing two differences is with return the alternative position dish ［ 55 ］ that returns of position dish ［ 64 ］ with the abnormal shape of protruding key ［ 62 ］, axle sleeve ［ 65 ］ with band bayonet socket ［ 63 ］ is replaced transmission sleeve pipe ［ 25 ］, protruding key ［ 62 ］ can be worked in coordination with bayonet socket ［ 63 ］, bayonet socket ［ 63 ］ also can be located on the transition block ［ 24 ］ of transmission sleeve pipe front portion, with doing identical replacement with spline structure in embodiment one, its function and transmission principle are constant.

Claims

1, a kind of timer [34] that is bearing on shell [61] internal partition and burnt gas valve time switch of burnt gas valve [7] of including is characterized in that:

(1) respectively timer spindle [39], with valve main shaft [17] that spool [11] is connected on the link gear of open and close spool [11] usefulness is installed;

(2) positioning disk [31] of the band contact pin of stirring with timer spindle [33] and the sensing pusher dog [30] that rotates synchronously with timer spindle also are installed on timer spindle;

(3) individual being bearing on the internal partition arranged, locator card arm between timer and burnt gas valve, when spool is in when closing the combustion gas position, the right fixture block [36] that is connected with stage clip [35] on the locator card arm presses down and embeds in the pass valve bayonet socket [32] on the positioning disk, when spool was in unlatching combustion gas position, the left fixture block [9] on the locator card arm pressed down and embeds opening in the valve bayonet socket [18] of link gear.

(4) have and return a mechanism, an end is fixed on the link gear, and the other end is fixed in the shell [61].

2, by the described burnt gas valve time switch of claim 1, it is characterized in that returning a mechanism and form by interconnective spring ［ 48 ］ and drag-line ［ 20 ］.

3, by the described burnt gas valve time switch of claim 1, it is characterized in that link gear is a gear drive, by being enclosed within driving gear on the timer spindle ［ 42 ］, slide over half toothed disc ［ 15 ］ on the valve main shaft, the supporting in the enclosure and with driving gear and the intermeshing idler gear of half toothed disc ［ 14 ］, with the synchronous ratchet ［ 45 ］ that rotates of timer spindle, be connected with driving wheel and rotating ratchet ［ 44 ］ with jump ring ［ 41 ］ contact and with pin ［ 47 ］, the drag-line groove ［ 21 ］ that is connected with half toothed disc, the transmission sleeve pipe ［ 25 ］ that is enclosed within on the flat axle ［ 22 ］ that is connected as a single entity with the valve main shaft is formed, the projection ［ 27 ］ of transmission sleeve pipe front portion and recess ［ 23 ］ insert respectively in the garden arc groove ［ 28 ］ and inclined-plane projection ［ 16 ］ on half toothed disc, one end of drag-line ［ 20 ］ is connected with half toothed disc, when spool was in unlatching combustion gas position, left fixture block ［ 9 ］ pressed down and embeds opening in the valve bayonet socket ［ 18 ］ on half toothed disc.

4, by the described burnt gas valve time switch of claim 1, it is characterized in that link gear is a projection hauling rope mechanism, return position dish ［ 55 ］ by what be located at secter pat ［ 60 ］ and breach ［ 59 ］ on the timer spindle ［ 39 ］, slide over tape spool cover ［ 57 ］ on the valve main shaft ［ 17 ］, be enclosed within torsion spring ［ 50 ］, index disk ［ 51 ］ on the axle sleeve ［ 57 ］ successively, be enclosed within the transmission sleeve pipe ［ 25 ］ on the flat axle ［ 22 ］ that is connected as a single entity with the valve main shaft, and hauling rope ［ 54 ］ is formed; One end of drag-line ［ 20 ］ with return position dish ［ 55 ］ and be connected; Hauling rope is respectively on fan-shaped bump and sheave, returning position dish end face has individual take off post ［ 56 ］ can insert in the garden arc groove ［ 53 ］ of sheave, projection ［ 27 ］ that transmission sleeve pipe ［ 25 ］ is anterior and recess ［ 23 ］ can insert respectively in the garden arc groove ［ 28 ］ and inclined-plane projection ［ 16 ］ that returns on the dish of position, when spool is in unlatching combustion gas position, left side fixture block ［ 9 ］ presses down, and opening in the valve bayonet socket ［ 18 ］ on the dish of position returned in embedding.

5, by the described burnt gas valve time switch of claim 4, it is characterized in that returning position dish ［ 55 ］ with return position dish replacement with the abnormal shape of protruding key ［ 62 ］, axle sleeve ［ 65 ］ with band bayonet socket ［ 63 ］ is replaced transmission sleeve pipe ［ 25 ］, and protruding key ［ 62 ］ and bayonet socket ［ 63 ］ be fit mutually.

6, by the burnt gas valve time switch of claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that being connected with bell ［ 3 ］, be provided with the bell clapper ［ 5 ］ of the knocked bell ［ 3 ］ that is connected with flexure strip ［ 6 ］ at the left end of locator card arm in the rear end of spool ［ 11 ］.