CN2313132Y

CN2313132Y - Timed valve

Info

Publication number: CN2313132Y
Application number: CN 97222852
Authority: CN
Inventors: 范国胜
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-06
Filing date: 1997-06-06
Publication date: 1999-04-07
Anticipated expiration: 2007-06-06

Abstract

The utility model relates to a timing valve which is composed of a mechanical timer and a valve and is capable of being closed at definite time. The utility model is particularly suitable for gas ranges, gas water heater, etc. The timing valve can be automatically closed according to time set by people, so that accidents, such as poisoning, fire disasters, etc. caused by gas leakage can be prevented from happening. The utility model has the advantages of simple structure, convenient installation, safety, etc.

Description

A kind of Timed valve

The utility model relates to a kind of valve, is a kind of valve that can regularly close specifically.

The kind of valve is a lot of at present, but can not regularly close.Though time switch is arranged, all be the electrically switchable grating that is used for electric equipment.The time switch of usefulness is washed in timing dehydration, timing as washing machine.The Timed valve that is used for the mechanical device throttle down is also rare.Timed valve in particular for the combustion gas aspect does not come out.The fuel structure of modern city resident living substantially all is to have replaced the burning coal with coal gas or liquefied petroleum gas (LPG).Gas ring, gas water-heater, fuel gas heating apparatus etc. enter family, greatly facilitate resident living, have also brought many unsafe factors simultaneously.Coal gas, liquefied petroleum gas leakage cause poisons, and accidents such as fire happen occasionally, and threaten personal safety.Its reason is many-sided, it is very important that two reasons are wherein arranged, the one, people when heating liquid, forget time, liquid overflow put out stove or the fire extinguished by wind, valve causes gas leakage according to opening, the 2nd, owing to be that flexible pipe links to each other between the valve on the liquified petroleum gas cylinder (or gaspipe line) and the kitchen range.And this valve often is not related to.Only depend on the kitchen range valve closing, cause aging or excessive the cracking of pressure of flexible pipe and leak gas, and gas water-heater takes place to leak gas when having a bath report is arranged when being poisoned to death incident.If can be having a bath before with the valve timing, then automatic-closing valve just can be avoided the accident of meeting accident.

The purpose of this utility model is to provide a kind of can come throttle down according to people's setting up time, and the especially timing of gas valve can prevent that people from forgeing throttle down and causing that accidents such as gas leakage such as coal gas take place.

The utility model is achieved in that by mechanical timer (2) and valve (8) etc. to be formed.Timing device (2) and valve (8) fixed connection are together, there is a boss disk (4) timing device (2) rear end, one half slot (19) is arranged on the disk, turning handle (5) control valve that half slot (19) can drive on the spool (10) is open-minded, spool (10) is provided with torsion spring (7), torsion spring (7) one ends are fixed on the valve (8), one end is to hang on the turning handle (5), the valve body end face has a round platform (14), and round platform (14) has a half slot (17), when reversing time switch knob (1), drive disk (4) rotation, spool turning handle (5) is along with disk (4) rotation, and when the half slot (17) on the round platform (14) of turning handle (5) commentaries on classics, timing device promptly picks up counting, be rotated further switch button (1), the disk (4) that turning handle (5) is timed device is pressed in the half slot (17), and after the timing, the switch button of timing device begins slow return.Disk (4) also turns round, and when the circular groove (19) on the disk (4) went to half slot (17), spool turning handle (5) was under the effect of torsion spring (7), and the disk (4) on drive spool (10) and the timing device is return together, valve closing.

Timed valve of the present utility model, the time that can set up according to people and throttle down.Be highly suitable for the valve of coal gas, liquefied petroleum gas (LPG).Both can be and automatic-closing valve does not need people guard on the scene according to the needed time of heating thing, can prevent that again people from forgetting that throttle down causes to leak and cause that accident takes place.

Below in conjunction with accompanying drawing the utility model is described.

Fig. 1 is the utility model plan view

Fig. 2 is the sectional view of Fig. 1

Fig. 3 is the A-A sectional view of Fig. 2

Fig. 4 is that the K of Fig. 3 is to view

Fig. 5 is the schematic representation of timing device among Fig. 2

With reference to accompanying drawing

Valve (8) links into an integrated entity with screw (3) with timing device (2).Spool (10) has certain tapering and valve body and matches and form the straight-through type valve.The thin end of spool (10) is threaded, and nut (9) is threaded onto in the screw thread, and spring (11) is inserted between nut (9) and the valve (8), pin with nut (9), prevent spool (10) play up and down, the butt end of spool (10) has a translot, be milled with two ears (16), turning handle (5) places in the translot.Two ears (16) and turning handle (5) are provided with aperture jointly, connect with pin (12).Turning handle (5) can be up and down in translot.Torsion spring (7) one ends place in the aperture (20) of valve (8), and the other end is stuck in to be turned round on the handle (5).Rotating shaft (15) on the timing device (2) is fixedlyed connected with disk (4), disk (4) has half slot (19), valve (8) is provided with round platform (14), round platform (14) has half slot (17) and shelves step (18), and the turning handle (5) on the spool (10) is placed in the half slot (19) of disk (4).Regularly change knob (1) when clockwise shearing and drive disk (4) rotation, turning handle (5) rotates thereupon.When turning handle (5) forwards the half slot (17) of round platform (14) to, turning handle (5) is blocked by the shelves steps (18) on the disk (14), turning handle (5) is pressed in the half slot (17) on the round platform (14), this moment, valve was in open position, and timing device enters timing, be rotated further regularly to change and turn round (1) when the scale sometime of timing device, timing device picks up counting and turning anticlockwise.When disk (4) was turned back to half slot (17) position on the round platform (14), turning handle (5) was pressed in the half slot (19) of disk (4) by the elastic force of torsion spring (7), and under the effect of torsion spring (7) return.This moment, valve was in the closed position.One end of valve body (8) is provided with screw thread (6) and can joins with gaspipe line, and the other end is provided with the joint (13) that joins with sebific duct.When being used for liquefied petroleum gas (LPG), screw thread (6) links to each other with steel cylinder.Rank lower contact (13), steel cylinder reduction valve and this internal thread join, and the internal thread size on screw thread (6) and the joint (13) matches with the silk of gaspipe line and the silk on the liquefied petroleum ga steel cylinder respectively.

Timing device (see figure 5) gear (Z1) is an one with wheel disc (20), fastening being inserted in the timer rotating shaft (15), rotating shaft (15) one ends are anchored on time switch knob (1), the other end is anchored on disk (4), torsion spring (21) one ends are fixed in timing device base one hole, and the other end is connected in the hole of wheel disc (20).Torsion spring plays regularly return effect, gear (Z1) and gear (Z2) engagement, and gear (Z1) lacks several teeth, make and when throttle down, do not mesh with gear (Z2), resistance when reducing throttle down, gear (Z2) is an one with gear (Z3), is fixed on the gear shaft (24).Gear (Z3) is fixedly mounted on the little axle (25) with ratchet (Z5) with gear (Z4) engagement, gear (Z4).Ratchet (Z5) is fixed on the axle (26) with escapement (22) engagement, escapement (22), and little axle (24), little axle (25), little axle (26) two ends all are enclosed within respectively in the boss hole of base (23) and loam cake (2), can rotate in the hole.When reversing time switch knob (1) clockwise, rotating shaft (15) drives wheel disc (20) and tightens torsion spring (21), and drive (Z1) is rotated gear (Z2), gear (3) rotates thereupon, gear (4) ratchet (5) also rotates thereupon, when stopping operating time switch button (1), time switch button (1) is turning anticlockwise under torsion spring (21) effect.Escapement (2) two end teeth and ratchet are interrupted engagement, ratchet is interrupted rotates, and reduce rotating speed, thereby timing device is slowly rotated regularly.

Claims

1, a kind of Timed valve of forming by mechanical timer (2), valve (8) etc.It is characterized in that: timing device (2) links into an integrated entity with screw (3) with valve (8).

2, Timed valve according to claim 1 is characterized in that: the rotating shaft (15) on the timing device (2) is fixedlyed connected with disk (4), and disk (4) has half slot (19); Valve (8) is provided with round platform (14), and round platform (14) has half slot (17) and shelves step (18), and the turning handle (5) on the spool (10) is placed in the half slot (19) of disk (4).

3, Timed valve according to claim 1 is characterized in that: the thin end of spool (10) is provided with screw thread, and nut (9) screws in the screw thread, and spring (11) is inserted between nut (9) and the valve (8); The butt end of spool (10) has translot, is milled with two ears (16), and turning handle (5) places in the translot; Two ears (16) are provided with aperture jointly, are connected with pin (12) with turning handle (5); Spool (10) is provided with torsion spring (7), torsion spring (7) one ends are fixed in the aperture (20) of valve (8), and the other end is stuck in to be turned round on the handle (5).

4, Timed valve according to claim 1 and 2 is characterized in that: valve (8) one ends are provided with screw thread (6), and the other end is provided with pipe joint (13).

5, Timed valve according to claim 1 and 2 is characterized in that: the gear of timing device (Z1) is an one with wheel disc (20), fastening being inserted in the timer rotating shaft (15), and rotating shaft (15) one ends are fixed in switch button (1), and the other end is anchored on disk (4); Torsion spring (21) one ends are fixed in timing device base (23) one holes, and the other end is connected in the hole of wheel disc (20); Gear (Z1) and gear (Z2) engagement, gear (Z2) is an one with gear (Z3), is fixed on the gear shaft (24); Gear (Z3) and gear (Z4) engagement, gear (Z4) is an one with ratchet (Z5), fastening being installed on the little axle (25), ratchet (Z5) is interrupted engagement with escapement (22); Escapement (22) is fastening to be installed on the little axle (26); Little axle (24), little axle (25), little axle (26) two ends are placed in respectively in the boss hole of base (23) and loam cake (1), can rotate in the hole.