CN2679529Y - Device for timing closing gas valve - Google Patents

Abstract

A device for timing closing gas valve comprises a timing mechanism, an outer shell, a base plate, a driving mechanism and a retarding mechanism. The utility model is characterized in that the base plate is equipped with at least two supporting bars. The mentioned timing mechanism installed on the upper part of the supporting bar comprises a timing device, a cam and a kinematic pair composed of a carrier rod and a guiding rail. The timing device is installed on the upper part of the supporting bar, and the guiding rail is fixed on the top board connected with the supporting bar. The cam is fixed on the shaft of the timing device, and one end of the carrier rod is engaged with the cam. With the utility model of the device for timing closing gas valve, the output shaft of the driving mechanism can close the combustion gas valve through the operating grip of the operating mechanism composed of a rocking arm and a pusher dog. The lower end of the output shaft can also display the cam shape fitting with the valve handle of the valve to close the open plug valve. In the urgent condition, the valve can be closed by directly operating the crank.

Description

Regularly close the device of gas valve

Technical field

The utility model relates to the device that the domestic gas valve is closed in a kind of timing, especially relates to a kind of device of closing gas valve behind the gas valve of opening.

Background technology

In the present prior art, the valve of civil gas stoves inlet early gate and alkene feed channel adopts plug valve or ball valve mostly, needs its handle of artificial turn during switch, does not have the function of regularly closing; Gas valve is closed in timing of the prior art, by timing mechanism, and transmission mechanism, executing agency makes the valve rod action, and spool stops up blast tube, and cuts off blast tube, is not suitable for rotation gate, shakes valve, function singleness.

Summary of the invention

The purpose of this utility model is: the device that provides a kind of timing to close gas valve, it is not only applicable to shake valve, but also can in case of emergency artificial valve-off rapidly.

The utility model is achieved in that a kind of timing closes the device of gas valve and comprise timing mechanism, shell, base plate, transmission mechanism, reducing gear, its special character is: at least two support bars are arranged on the base plate, described timing mechanism is installed in the top of support bar, the kinematic pair that timing mechanism comprises timer, cam, is made up of push rod and guide rail, timer is installed in the top of support bar, guide rail be fixed on the joining top board of support bar on, cam is fixed on the axle of timer, one end of push rod cooperates with cam, and the other end cooperates with transmission mechanism; Transmission mechanism cooperates with the valve rod of reducing gear, gas valve.

Described transmission mechanism comprises the disk of bottom band output shaft, be positioned at the band internal tooth of disk top and disk one, the circle ring disk of stop bit ratchet, the stop bit ratchet articulate on the circle ring disk shrinkage pool in, the stop bit ratchet cooperates with the push rod of timing mechanism, the valve rod of gas valve cooperates with output shaft on the disk, disk is installed on the base plate by output shaft, and a cylinder is installed on the lower surface of disk, and an end of back-moving spring is installed on the cylinder, the other end is installed on the base plate.

Described reducing gear comprises a damping gear that cooperates with the circle ring disk internal tooth, and the gear that matches with the damping gear, and gear and damping gear are installed on the top board.

Also comprise executing agency, executing agency comprise with disk on the rocking arm that is connected and fixed of output shaft, be positioned at the pusher dog of the rocking arm other end, an annular groove that cooperates with the gas valve handle is arranged on the pusher dog.

The utility model is regularly closed the device of gas valve, the output shaft of transmission mechanism can be by the executing agency that is made up of rocking arm, pusher dog, operating grip is closed gas valve, cooperates with the valve rod of valve but also bottom that can output shaft is cam-like, closes the obstruction valve of opening; Under urgent situation, but direct control handle valve-off.

Description of drawings

Fig. 1 is the main cutaway view of the timing of the present utility model device of closing gas valve.

Fig. 2 is that the timing mechanism of the timing of the present utility model device of cutting out gas valve cooperates schematic diagram with transmission mechanism.

The specific embodiment

As shown in Figure 1 and Figure 2, a kind of timing device of closing gas valve comprises timing mechanism, shell, base plate, transmission mechanism, reducing gear, executing agency; Shell 1 is fixedly connected with base plate 10, there is a dial 17 to cooperate on the shell 1 with knob 16 on the timer 2, one support bar 11 is arranged on the base plate 10, the support bar 11 that is used to support timer 2 can have two, three, four, timing mechanism comprises timer 2, cam 6, the kinematic pair of forming by push rod 7 and guide rail 8, timer 2 is installed in the top of support bar 11, guide rail 8 be fixed on support bar 11 joining top boards 3 on, cam 6 is fixed on the axle 15 of timer 2, one groove 22 is arranged on the cam 6, one end of push rod 7 cooperates with cam 6 upper grooves 22, and the other end cooperates with the stop bit ratchet 19 of transmission mechanism; Transmission mechanism comprises the disk 5 of bottom band output shaft 12, be positioned at the band internal tooth 21 of disk 5 tops and disk 5 one, the circle ring disk 4 of stop bit ratchet 19, in the shrinkage pool 20 that stop bit ratchet 19 articulates on the circle ring disk 4, also can directly be articulated on the disk 4, stop bit ratchet 19 cooperates with the push rod 7 of timing mechanism, disk 5 is installed on the base plate 10 by its output shaft 12, a cylinder 23 is arranged on the lower surface of disk 5, one end of back-moving spring 13 is installed on the cylinder 23, the other end is installed on the base plate 10, output shaft 12 can connect with the valve rod of valve, output shaft 12 bottom portions are cam-like or with after a cam connects, cooperate with the valve rod of valve, can also connect transmission with the handle of valve by executing agency, executing agency comprises the output shaft 12 joining rocking arms 9 with transmission mechanism, with the pusher dog 14 of rocking arm one,, there is a groove 141 to cooperate on the pusher dog 14 with the handle of valve as further improvement; One reducing gear cooperates with transmission mechanism, and when realizing steady valve-off, reducing gear comprises a damping gear 18 that cooperates with circle ring disk 4 internal tooths 21, and the gear 181 that matches with damping gear 18, and gear 181 and damping gear 18 are installed on the top board 7.

As shown in Figure 1 and Figure 2, turn clockwise knob 16 regularly, shift out from the groove 22 of cam 6 end of push rod 7, and with rocking arm 9 rotations, pusher dog 14 snaps on the handle of valve then, and this moment, the end of push rod 7 cooperated with check pawl 19, with disk 5 location; When setting-up time arrives, push rod 7 breaks away from check pawl 19, and then disk 5 resets under spring 13 effects, because reducing gear cooperates with tooth 21 on the circle ring disk 4, when being turned round, disk 5 operates steadily the output shaft 12 of disk 5, under pusher dog 14 effects by rocking arm 9, the handle of valve resets.

Claims (5)

1, a kind of timing device of closing gas valve comprises timing mechanism, shell, base plate, transmission mechanism, reducing gear, it is characterized in that: at least two support bars are arranged on the base plate, described timing mechanism is installed in the top of support bar, the kinematic pair that timing mechanism comprises timer, cam, is made up of push rod and guide rail, timer is installed in the top of support bar, guide rail be fixed on the joining top board of support bar on, cam is fixed on the axle of timer, one end of push rod cooperates with cam, and the other end cooperates with transmission mechanism; Transmission mechanism cooperates with the valve rod of reducing gear, gas valve.

2, the device of gas valve is closed in timing according to claim 1, it is characterized in that: described transmission mechanism comprises the disk of bottom band output shaft, be positioned at the band internal tooth of disk top and disk one, the circle ring disk of stop bit ratchet, the stop bit ratchet articulate on the circle ring disk shrinkage pool in, the stop bit ratchet cooperates with the push rod of timing mechanism, the valve rod of gas valve cooperates with output shaft on the disk, disk is installed on the base plate by output shaft, a cylinder is installed on the lower surface of disk, and an end of back-moving spring is installed on the cylinder, the other end is installed on the base plate.

3, the device of gas valve is closed in timing according to claim 1 and 2, it is characterized in that: described reducing gear comprises a damping gear that cooperates with the circle ring disk internal tooth, and the gear that matches with the damping gear, gear and damping gear are installed on the top board.

4, the device of gas valve is closed in timing according to claim 3, it is characterized in that: also comprise executing agency, executing agency comprise with disk on the rocking arm that is connected and fixed of output shaft, be positioned at the pusher dog of the rocking arm other end, an annular groove that cooperates with the gas valve handle is arranged on the pusher dog.

5, the device of gas valve is closed in timing according to claim 1 and 2, it is characterized in that: also comprise executing agency, executing agency comprise with disk on the rocking arm that is connected and fixed of output shaft, be positioned at the pusher dog of the rocking arm other end, an annular groove that cooperates with the gas valve handle is arranged on the pusher dog.