CN207455645U - Gas oven timing means - Google Patents

Abstract

A kind of gas oven timing means includes housing, and the inner space of housing is divided into the first and second housing chambers, and two housing chambers are locked to the first and second caps closing of housing respectively；The one side of housing or second shell are covered with air inlet to connect the air inlet pipe of gas oven, and the opposite side of housing is equipped with air outlet pipe of the gas outlet for connection gas oven.Timing means has further included the transmission mechanism for being separately positioned on the indoor mechanical type timepiece of two shells and valve assembly and linking timer and valve assembly.When timer is activated, timer drives valve assembly start that gas is made to be flowed out from gas outlet and is supplied to gas oven via air outlet pipe into valve opening position by transmission mechanism.When setting time then, valve assembly involution valve closing position and close gas outlet, stop supply gas, stove fire is automatically closed.

Description

Gas oven timing means

Technical field

The utility model is especially a kind of for setting the usage time of gas oven on a kind of gas oven timing means, and Gas is then interdicted automatically in setting time, closes the mechanical type timing device of stove fire.

Background technology

TaiWan, China new patent the M337045th revealed " structure-improved of gas furnace safe device " includes one Thermocouple, arranged on the appropriate place of burner of gas range, to perceive temperature during burner ignition, and corresponding generation one is electrically believed Number；And a solenoid valve, thermocouple is connected on gas switch, and with a signal conductor, to receive the electric signal of thermocouple； Wherein, an auxiliary connection device is equipped at the signal conductor of the connection thermocouple and solenoid valve, it, should for connecting an electronic controller Electronic controller can further connect a timing means, when timing means setting time then, that is, trigger electronic controller, make Electronic controller exports a backward voltage to solenoid valve via auxiliary connection device, and the forward direction for offsetting the supply of reason thermocouple is electric Pressure makes solenoid valve demagnetization and involution valve closing position, interdicts gas automatically.

Since electronic controller and timing means are both needed to direct-current power supply operating voltage.It though can be with as the power supply used It is supplied by dry cell or accumulator.But it must be replaced often using during dry cell, it is very uneconomical.Using then necessary during accumulator Often charge, it is very troublesome.Both economical method is the transformation by the AC power of family expenses after decompression and rectification, voltage stabilizing Carry out the DC power supply needed for supply circuit into direct current.However, using the gas oven of AC power supply, it is necessary to which power cord connects electricity Supply socket, based on gas oven use when, can generate flame, and may burn the anxiety of power cord, and gas oven is less using alternating current absolutely Power supply.In addition, whether using dry cell, accumulator or alternating current, they have a common point, that is, need conducting wire.It leads Line is in addition to increasing inconvenient in gas oven assembling, and high temperature that when gas oven use is generated due to flame can also accelerate conducting wire Aging, once conducting wire aging will harden, lose pliability, order encloses the insulated hull damage of conductor, causes to leak electricity and generate Spark, then ignite gas and on fire.Therefore, the timing means of gas oven collocation electronic circuit control is not one preferably to set Meter.

The TaiWan, China new patent proposed on behalf of the applicant the M506939th " has the function of timing closed gas Gas oven " aim to solve the problem that the above problem, include gas furnace body and mechanical type timing device, which has Gas inlet pipe and air outlet pipe, the timing means are arranged on the gas furnace body, and are connected the gas inlet pipe respectively and gone out Tracheae when the timing means starts clocking capability, can be supplied to the gas furnace body；When the use of timing means setting Between (in limited time shut-in time) then, interdict gas automatically, close stove fire.

Since gas oven according to mounting means is distinguished into traditional type (lower weighting platform stove), embedded (calling embedding stove in the following text) and platform-type Three kinds of (calling table top stove in the following text) etc., and the preceding gas outlet for taking off mechanical timing means is arranged at housing, air inlet is arranged on closing The cap of housing bottom, the arrangement of such entry/exit gas port position although its function will not be reduced, are difficult to make different installation sides Entry/exit tracheae can be connected to the timing means in the case that very efficient by the gas oven of formula.

Utility model content

The utility model in order to solve the above problem institute into its purpose is to provide a kind of gas oven timing means, Ke Yipei It closes the gas oven of different installation or according to customer demand, the entry/exit gas port position that gas pipe is arranged in most convenient is provided, is improved Assemble convenience.

Implement the gas oven timing means of the utility model, comprising a housing, the inner space of the housing by one every Plate is divided into one first housing chamber and one second housing chamber, which is locked to first cap and second at the housing both ends respectively Cap is closed；The one side of the housing or second shell are covered with an air inlet to connect the air inlet pipe of the gas oven, the housing it is another One side is equipped with air outlet pipe of the gas outlet for the connection gas oven；The timing means, which has further included, is separately positioned on two housing chambers Interior timer and valve assembly and the transmission mechanism for linking the timer and valve assembly；When the timer is activated, the timing Device drives the valve assembly start into valve opening position gas to be made to flow out from the gas outlet and be supplied via the air outlet pipe by the transmission mechanism It should be to the gas oven；When setting time then, the valve assembly involution valve closing position and close the gas outlet, stop supply gas, from It is dynamic to close stove fire.

The both ends of the housing outwards expand form one first flange and one second flange, first cap and second respectively Cap is respectively with one group of screw locking in first flange and the second flange.

The outside of the air inlet and gas outlet expands to form a joint flange respectively, which is respectively equipped with One group of screw hole.

The one cylindric valve seat of gas outlet assembling, the valve assembly include a valve body, which is assembled on a valve rod, And valve body Zhi Pingchang is maintained at the position for being sealed at the valve seat by the elastic force of a spring.

Second housing chamber is equipped with two roofbolts, and it is recessed that the one side of two roofbolts and the lower surface of partition plate are respectively provided with one Slot；Second cap includes a column component, retaining ring of the upper end of the column component equipped with a tool elasticity；The valve assembly further wraps Containing a spring base, which is supported in spring base slip, and the both ends of the spring are held in the spring base and valve body respectively, and The periphery of the spring base has a radially widened flange, which is embedded in two roofbolts and partition plate by the flange Groove and the retaining ring, and be maintained between the partition plate, two roofbolts and column component.

The first shell is covered with a posthole, and the near coal-mine of the posthole is surround by an enclosure wall, and it is annular that one is buried in posthole Pad and a washer；The timer includes a shaft and a knob connecting rod, the shaft through the ringed liner and washer and with this Knob connecting rod links；The lower part of the knob connecting rod radially expands to form a bar base, which has a ring for receiving the enclosure wall Shape groove, the enclosure wall that the posthole can be surrounded by making the knob connecting rod rotate, and the bar bottom surface of the knob connecting rod is smooth in the washer, The ringed liner is made to be sealed at the pitted surface of the posthole.

The air inlet arranged on the housing is set with the gas outlet interval 90 or 180.

The housing further includes a default intake interface set with the air inlet interval 90 or 180 degree, this is default Intake interface is formed at the joint flange on the outside of the non-through air inlet comprising a non-through air inlet and one.

The utility model compare prior art the effect of be, through the one side of housing or the second cap set one into Gas port, and gas outlet is arranged on to the opposite side of housing, make the gas oven of different installation can be in very efficient feelings Under condition, entry/exit tracheae is connected to timing means, reduces assembling man-hour, reduces production cost.

Description of the drawings

Fig. 1 and Fig. 2 is respectively the outside drawing of the utility model gas oven timing means different visual angles.

Fig. 3 is the element exploded view of the utility model.

Fig. 4 is the central profilograph of the utility model stationary state.

Fig. 5 is the sectional view of the line A-A along Fig. 4.

Fig. 6 is the sectional view of the line B-B along Fig. 4.

Fig. 7 is the central profilograph of the utility model starting state.

Fig. 8 is the sectional view of the line C-C along Fig. 7.

Fig. 9 is the sectional view of the line D-D along Fig. 7, and wherein hollow arrow represents Gas Flow direction, and filled arrows represent member The part direction of motion.

Figure 10 to Figure 12 is the schematic diagram that the utility model is assembled in table top stove, embedding stove and platform stove respectively.

Reference numeral

10：Timing means；11：Shell；12：Timer；13：Transmission mechanism；14：Valve assembly；15：Table top stove；16：It is embedding Stove；17：Platform stove；18：Air inlet pipe；19：Air outlet pipe；20：Housing；21：First cap；22：Second cap；23：Partition plate；24：The One housing chamber；25：Second housing chamber；26：First flange；27：Second flange；28：Screw hole；29：Screw hole；30：Screw；31：Screw； 32：Air inlet；33：Roofbolt；34：Gas outlet；35：Ringed liner；36：Valve seat；37：O-ring；38：Pillar；39：Screw；40：O Shape ring；41：Hole；42：Pedestal；43：Screw hole；44：O-ring；45：Joint flange；46：Joint flange；47：Joint flange；48： Screw hole；49：Screw hole；50：Screw hole；51：Body；52：Shaft；53：Knob connecting rod；54：Column component；55：Axis hole；56：Turntable； 57：Notch；58：Crosspiece；59：Positioning column；60：Bar base；61：Retaining ring；62：Slot；63：Screw；64：Washer；65：Ring-type lining Pad；66：Timer knob；67：Gas switch knob；68：Enclosure wall；69：Pivoted hole；70：Posthole；71：Brake component；72：Rocking arm； 73：Rocking bar；74：Bar axis；75：Articulated section；76：Trip；77：Free end；78：Shaft；79：Opening；80：Screw hole；81：It is annular recessed Slot；82：Screw；84：Jack；85：Screw；86：Washer；87：O-ring；90：Spring base；91：Valve rod；92：Valve body；93：Bullet Spring；94：Head；95：Washer；96：Bar tail；97：Flange；98：Groove；99：Centre bore.

Specific embodiment

Detailed technology content and other purposes and feature as the utility model is with reference to the following embodiment for coordinating attached drawing Illustrate to be fully appreciated that.

As shown in Fig. 1 to 6 figures, the gas oven timing means 10 that the utility model discloses is by shell 11, timer 12, transmission Mechanism 13 and valve assembly 14 are composed.Wherein：

Shell 11, including a housing 20, one first cap 21 and one second cap 22.The shape of the housing 20 is generally in Cylindrical shape, inner space is divided into one first housing chamber 24 and one second housing chamber 25 by a partition plate 23, to receive timer 12, driver Structure 13 and valve assembly 14.Also, the opposite end of housing 20 outwards expands respectively forms one first flange 26 and one second flange 27, Two flanges 26,27 respectively provide one group of screw hole 28,29, respectively for one group of screw 30,31 by the first cap 21 and the second cap 22 lock onto housing 20 in a manner that flange engages (Flange Joint).In addition, the one side of housing 20 has one and second housing chamber 25 air inlets 32 communicated, the opposite side of housing 20 are equipped with a gas outlet 34 communicated with the second housing chamber 25.In the implementation of attached drawing In example, which is spaced 180 degree with gas outlet 34 and sets, but air inlet 32 can also be spaced 90 degree of settings with gas outlet 34, From the limitation of the embodiment shown in that figure.As shown in Figure 10, the company of supplying when timing means 10 is assembled in table top stove 15 of air inlet 32 The air inlet pipe 18 of the stove is connect, gas outlet 34 is connected with the air outlet pipe 19 of the stove, but air inlet 32 and gas outlet 34 are face-to-face The timing means 10 of configuration is also mountable to embedding stove 16 (Figure 11) and platform stove 17 (Figure 12), from the limit of table top stove 15 is assembled in System, i.e. the utility model are suitble to be assembled in be used including gas ovens such as table top stove 15, embedding stove 16 and platform stoves 17, is used setting and is closed fire Time, setting time then, are automatically closed gas, extinguish stove fire, reach energy saving and security purpose.The air inlet 32 passes through one Ringed liner 35 and the generation of the abutting end of air inlet pipe 18 are reliable airtight, prevent gas leakage；Gas outlet 34 is further with interference The valve seat 36 of fit system assembling one and the cooperation of aftermentioned valve body 92, this valve seat 36 is cylindrical shape, and periphery is arranged an O-ring 37, it is thereby formed between the contact surface of valve seat 36, gas outlet 34 and air outlet pipe 19 appropriate airtight, prevents gas leakage.It is described First housing chamber 24 is additionally provided with several lower wide, upper narrow pillars 38 to support timer 12.Second housing chamber 25 has to be set face-to-face Two roofbolts 33, the one side of two roofbolts 33 and the lower surface of partition plate 23 are respectively equipped with a groove 98.

First cap 21 engages the first flange 26 of housing 20 with one group of screw 30, uses the first housing chamber 24 of closing, And it is formed by an O-ring 40 between the contact surface of the first cap 21 and housing 20 airtight, prevents oil, water and dust etc. from outer Portion invades the first housing chamber 24, avoids damage timer 12.The center of first cap 21 is further provided with a posthole 70, one around column 70 near coal-mine enclosure walls 68 and the pedestal 42 for being respectively formed at 68 both sides of enclosure wall are cheated, which provides a smooth pitted surface to hold Receive a washer 64 and a ringed liner 65, and the hole 41 for cheating bottom center allows aftermentioned shaft 52 to stretch out the first cap 21 Top；As for enclosure wall 68 then aftermentioned knob connecting rod 53 to be supported to rotate, details remains aftermentioned, skips over for the time being.Described two A pedestal 42 respectively has a screw hole 43, and timing means 10 is locked under the table top of table top stove 15 for two screw (not shown) The operation panel back side (Figure 11, Figure 12) of (Figure 10) or embedding stove 16, platform stove 17.

Second cap 22 closes the second housing chamber 25 with the second flange 27 of one group of engagement housing 20 of screw 31, and It is formed in the second cap 22 and between the contact surface of housing 20 good airtight using an O-ring 44, prevents gas leakage.To make Timing means 10 can coordinate the gas oven of different installation or according to customer demand, and air inlet 32 can also be arranged on the second cap 22, from arranged on the limitation of housing 20.The utility model is mainly illustrated with being located at the air inlet 32 of housing 20 with illustrating, therefore attached drawing In for the air inlet on the second cap 22 with non-through status display, and do not assign element number, avoid existing simultaneously Two air inlets.When air inlet 32 is arranged on the second cap 22, which generally is relatively suitble to be assembled in embedding stove 16 It is used with platform stove 17, because the position of air inlet 32 and gas outlet 34 is conducive to connect the air inlet pipe 18 and air outlet pipe of the stove 19.Certainly, the timing means 10 that air inlet 32 is provided in the second cap 22 equally can be assembled and be used in table top stove 15, from installation In the limitation of embedding stove 16 and platform stove 17.In the preferred embodiment, arranged on the air inlet 32 of housing 20 and gas outlet 34 or it is arranged on The outside of the air inlet of second cap 22 outwards expands form a joint flange 45~47 respectively, and such joint flange 45~47 is each From with one group of screw hole 48~50, the screw (not shown) engagement air inlet pipe 18 of gas oven and air outlet pipe 19 can be used, forms flange It engages (Flange Joint).In another embodiment, housing 20 can also include a default intake interface (not shown)；Namely It says, housing 20 has an intake interface (i.e. the combination of air inlet 32 and joint flange 45) and a default intake interface simultaneously.Institute The default intake interface of meaning refers to the joint flange being formed at by a non-through air inlet and one on the outside of the non-through air inlet and forms, The default intake interface can be spaced 90 or 180 degree setting with air inlet 32.

Timer 12 includes a body 51, a shaft 52 and a knob connecting rod 53.The body 51 uses the snail for being referred to as clockwork spring Shape spring (not shown) is as power source, and shape is generally D-shaped, and bottom is supported on pillar 38 and keeps one with partition plate 23 Distance, the hole (not shown) that top is correspondingly arranged through several screws 39 the first cap 21 of insertion, so fixes body 51 In the first housing chamber 24, and the first housing chamber 24 is made still to have the part of space transmission mechanism 13.The shaft 52 is through originally The axis hole 55 of body 51, thus during rotating shaft 52, you can the clockwork spring inside body 51 is driven to crispatura, makes its deposit elasticity energy, when When this energy discharges slowly, you can the rotation of certain time is communicated to the gear (not shown) inside body 51, reaches timing Effect.Also, the end of shaft 52 radially expands to form a turntable 56, the outer rim of this turntable 56 has a notch 57, effect It equally remains aftermentioned.The stage casing of shaft 52 then has a crosspiece 58, which protrudes from the positioning of 51 upper surface of body Column 59 is cooperated, to limit the maximum rotation angle of shaft 52 (about 300 degree)；That is, the maximum rotation angle of shaft 52 is stopped When crosspiece 58 prevents for positioning column 59.Through the angular dimension of rotating shaft 52, you can freely set in the range of certain time Determine the usage time of gas oven.Knob connecting rod 53 is a reducing body, and lower part radially expands to form a bar base 60, which has There is the annular recess 81 of a receiving posthole enclosure wall 68, make knob connecting rod 53 that can be rotated around posthole enclosure wall 68, and generate suitable In the effect of protecting cover, prevent foreign matter from invading the second housing chamber 25 pollution timer 12.The top section of knob connecting rod 53 is D-shaped and slotting Enter timer knob 66 (Figure 10 to Figure 12), and the latter end of knob connecting rod 53 provides a slot 62, and the upper end of shaft 52 passes through It nuzzles and slot 62 is inserted into after the ringed liner 65 of posthole 70 and washer 64, then locked with a soket head cap screw 63, make knob connecting rod 53 are combined together with shaft 52 and are rotated synchronously, while the smooth washer 64 in bar bottom surface of knob connecting rod 53, make ringed liner 65 Can be closely sealed with the pitted surface of posthole 70, it is invaded with pollutants such as isolation oil, water and dusts, it is ensured that timer 12 totally operates.

Transmission mechanism 13 is arranged in housing 20 and is promoted and swung by turntable 56, to convey straight line to valve assembly 14 Movement.Transmission mechanism 13 includes brake component 71, rocking arm 72, rocking bar 73 and bar axis 74.The outside of the brake component 71, which has, to be in Two pivoted holes 69 of body 51 are inserted into the articulated section 75 of opposite end, two articulated sections 75 respectively, and by 71 pivot of brake component The one side of body 51 is connected to, and is promoted and swung by turntable 56.The card that brake component 71 also extends comprising one towards 56 direction of turntable Tenon 76, this trip 76 exits the notch 57 with insertion turntable 56 with 51 start and stop of body, after effect remains together It states.The rocking arm 72 is arranged in the first housing chamber 24, and free end 77 and the contact outside of brake component 71 make rocking arm 72 with system 71 synchronous hunting of moving part.The rocking bar 73 is assembled in the second housing chamber 25, and there is shaft 78 opening 79 to supply valve assembly 14 Valve rod 91 pass through, with band ovable valve stem 91 move in a straight line.The bar axis 74 is rotated through the partition plate 23 of housing 20, while bar The upper end of axis 74 has a screw hole 80, is locked after the insertion rocking arm 72 of bar axis 74 with a screw 82；It then inserts the end of bar axis 74 Enter the jack 84 of rocking bar 73 and locked with a screw 85, and coordinate two washers 86 and two O-rings on bar axis 74 87, rocking arm 72 and rocking bar 73 across partition plate 23 are bonded respectively to the both ends of bar axis 74, enable the pendulum synchronous with rocking arm 72 of rocking bar 73 It is dynamic, while reach airtight effect.

Valve assembly 14 is arranged in the second housing chamber 25 of housing 20, to be opened and closed gas access.The valve assembly 14 is by a bullet Spring abutment 90, a valve rod 91, a valve body 92 and a spring 93 are formed, which is cylindrical shape, and periphery has one radially to expand Big flange 97,12,9 and 3 o'clock, three orientation of this flange 97 are respectively embedded into the groove 98,6 of partition plate 23 and two roofbolts 33 O ' clock orientation is then embedded in a retaining ring 61；Ring-type is made using tartan in the retaining ring 61, have appropriate elasticity with Hardness, and the upper end of one and 22 integrally formed column component 54 of the second cap are assembled in, spring base 90 is so maintained at partition plate 23rd, helped simultaneously between two roofbolts 33 and column component 54 with valve rod 91 is supported to slide, achieve the effect that shock-absorbing and prevents offset In assembly and disassembly.The valve rod 91 is slidably disposed through the centre bore 99 of spring base 90, and with 94 He of head in opposite end Bar tail 96, the diameter of the head 94 is more than the width of rocking bar opening 79, and is maintained at the inside of rocking bar shaft 78, so as to shake When bar 73 is swung, by shaft 78 head 94 is promoted to retreat valve rod 91；It conversely, can be in valve rod 91 because the active force of spring 93 And when advancing, 73 backswing of rocking bar is promoted by head 94.Valve body 92 faces above-mentioned valve seat 36, and is installed with unification washer 95 In bar tail 96, as the advance of valve rod 91 with retreating is sealed at valve seat 36 and lifts off a seat 36, to reach opening and closing gas access Effect.93 snare of spring is in the periphery of valve rod 91, and both ends are held in spring base 90 with washer 95 and in tensioning shape respectively State is sealed at the position of valve seat 36 using its elastic force valve body 92 to be made to be maintained at usually.

As shown in Fig. 4 to Fig. 6 figures, in 12 stationary state of timer, the trip 76 of brake component 71 can be inserted into turntable 56 In notch 57, it is held in place brake component 71, valve body 92 is in valve closing position at this time, that is, is sealed at valve seat 36 and interdicts gas and lead to Road, closed gas.

As shown in Figure 7 to 9, when rotating timer knob 66 with hand, make knob connecting rod 53 and shaft 52 together then start During the clocking capability of body 51, the notch 57 of turntable 56 will exit trip 76 with the rotation of turntable 56, enable turntable 56 Its circumferential part is contacted with trip 76, and when the two contacts, promoting brake component 71, lateral deviation turns outward, makes to link one by bar axis 74 The rocking arm 72 risen generates identical swing with rocking bar 73, then linear motion is conveyed from the oscillating motion of rocking bar 73 to valve rod 91, makes The valve body 92 for being linked to valve rod 91 lifts off a seat 36, opens gas access, makes gas defeated via the air outlet pipe of connection gas outlet 34 Go out, supply gas oven needs to use, while spring 93 is accumulated elastic energy by compression.

When 12 timing of timer ends (setting time is then), the notch 57 of turntable 56 is by the face with the rotation of turntable 56 To trip 76, the strength that turntable 56 is added in valve assembly 14 by transmission mechanism 13 is made to disappear, then spring 93 is released elasticity Trip 76 can be made to be inserted into the notch 57 of turntable 56, while valve body 92 is returned also with rocking bar 73 13 pushed home of transmission mechanism It restores position and is sealed at valve seat 36, inaccessible gas access stops supply gas, stove fire is automatically closed, to save gas and ensure Safety.

Because the valve body 92 of timing means 10 is maintained at valve closing position when flat, therefore using must first enable timer during gas oven 12, make 92 start of valve body into valve opening position, open gas access, then can rotate gas switch knob 67 (Figure 10 to Figure 12) into Row igniting and adjustment firepower.Therefore, timing means 10 also has in addition to possessing and closing the function of stove fire in limited time and is equivalent to switch The effect of valve, and the gas switch for coordinating gas oven existing form double valve operation configuration, greatly improve the safety of gas oven Property.

Certainly, above-described embodiment can be subject to several variations in the case where not departing from the scope of the utility model, therefore above explanation Comprising and attached whole items shown in figure should be regarded as claim model illustrative rather than to limit the utility model It encloses.

Claims (8)

1. a kind of gas oven timing means, which is characterized in that comprising a housing, the inner space of the housing is divided into one by a partition plate First housing chamber and one second housing chamber, two housing chambers are locked to first cap at the housing both ends and the second cap envelope respectively It closes；The one side of the housing or second shell are covered with an air inlet to connect the air inlet pipe of the gas oven, and the opposite side of the housing is set There is air outlet pipe of the gas outlet for the connection gas oven；The timing means, which has further included, is separately positioned on two indoor meters of shell When device and valve assembly and the transmission mechanism for linking the timer and valve assembly；When the timer is activated, which passes through The transmission mechanism drives the valve assembly start, and into valve opening position, gas is made to flow out from the gas outlet and be supplied to via the air outlet pipe should Gas oven；When setting time then, the valve assembly involution valve closing position and close the gas outlet, stop supply gas, be automatically closed Stove fire.

2. gas oven timing means as described in claim 1, which is characterized in that the both ends of the housing outwards expand formed respectively One first flange and one second flange, first cap and the second cap are respectively with one group of screw locking in first flange and Two flanges.

3. gas oven timing means as described in claim 1, which is characterized in that the outside of the air inlet and gas outlet is expanded respectively Big to form a joint flange, which is respectively equipped with one group of screw hole.

4. gas oven timing means as described in claim 1, which is characterized in that one cylindric valve seat of gas outlet assembling, The valve assembly includes a valve body, which is assembled on a valve rod, and valve body Zhi Pingchang is kept by the elastic force of a spring In the position for being sealed at the valve seat.

5. gas oven timing means as claimed in claim 4, which is characterized in that second housing chamber is equipped with two roofbolts, this two The one side of a roofbolt and the lower surface of partition plate are respectively provided with a groove；Second cap include a column component, the column component it is upper Retaining ring of the end equipped with a tool elasticity；The valve assembly further includes a spring base, which is supported in spring base slip, should The both ends of spring are held in the spring base and valve body respectively, and the periphery of the spring base has a radially widened flange, The spring base is embedded in the groove and the retaining ring of two roofbolts and partition plate by the flange, and is maintained at the partition plate, two bars Between column and column component.

6. gas oven timing means as described in claim 1, which is characterized in that the first shell is covered with a posthole, the posthole It is near coal-mine surround by an enclosure wall, and a ringed liner and a washer are buried in posthole；The timer includes a shaft and a rotation Button connecting rod, the shaft link through the ringed liner and washer with the knob connecting rod；The lower part of the knob connecting rod is radially expanded Big to form a bar base, which has an annular recess for receiving the enclosure wall, makes the knob connecting rod that can surround the enclosure wall of the posthole It rotates, and the bar bottom surface of the knob connecting rod is smooth in the washer, and the ringed liner is made to be sealed at the pitted surface of the posthole.

7. gas oven timing means as described in claim 1, which is characterized in that arranged on air inlet and the gas outlet of the housing Interval 90 or 180 is set.

8. gas oven timing means as described in claim 1, which is characterized in that the housing further includes one and the air inlet The default intake interface that interval 90 or 180 degree are set, the default intake interface are formed at comprising a non-through air inlet and one Joint flange on the outside of the non-through air inlet.