CN201916517U - Gas valve for household gas stove - Google Patents

Abstract

A gas valve of a domestic gas stove controls the opening and closing of the gas and the adjustment of the flow rate through the back and forth linear motion of the driving rod. Compared with the traditional domestic gas stove cock valve driven by rotation, the sealing surface of the gas valve is only the matching plane between the valve core and the valve body, the valve core and the flow plate, which greatly reduces the sealing area, which is about the same as that of an ordinary gas stove. One-half of the plug valve, thereby reducing the frictional resistance when the spool moves, reducing the energy required for driving, and is especially suitable for driving by power devices such as micro motors.

Description

Gas valve for household gas stove

technical field

The utility model relates to a gas cooker component, in particular to a gas valve of a household gas cooker.

Background technique

As we all know, the commonly used household gas stove gas valve controls the opening and closing of the gas and the adjustment of the flow rate by rotating the valve core, which is called a plug valve. This structure has the characteristics of easy processing and simple operation. However, because the plug valve uses the seal between the peripheral surface of the valve core and the inner wall of the valve core, the sealing surface is relatively large, and the friction force is large when rotating, which results in a large torque when rotating the valve core. This shortcoming is not obvious when rotating the valve core manually. When the spool is driven by a power device such as a micro motor, an external power supply must be connected to drive the motor due to the large torque required. When using the dry battery that comes with the cooker to drive, the frequency of dry battery replacement will be high, and the use cost of the cooker will increase.

Contents of the invention

The purpose of the utility model is to provide a valve core linear motion household gas stove gas valve, which reduces the sealing area between the valve core and the valve body, reduces frictional resistance and thus reduces the energy required for driving the valve core, and is especially suitable for micro motors, etc. Gas valve for domestic gas stove driven by power unit.

The technical solution of the utility model is: The new gas valve is composed of a valve body, a valve core, a flow control plate, a pressing spring, a sealing gasket, a valve cover, an O-shaped sealing ring, and a driving rod. The valve core is installed in the groove of the valve body, and is sealed with the air inlet on the valve body through the bottom plane. The flow control plate is installed on the valve core, and the flow control plate is provided with different specifications of flow Control the small hole, the pressure spring is installed on the flow control plate, the valve cover is provided with an air outlet, the valve cover is sealed with the groove of the valve body through the gasket, one end of the drive rod is connected with the valve core, and the other end is connected through O The shaped sealing ring protrudes out of the valve body for users to operate.

After adopting the above structure, compared with the prior art, the utility model has the following advantages: since the sealing surface of the gas valve is only the matching plane between the valve core and the valve body, the valve core and the flow plate, the sealing area is greatly reduced, about It is one-half of the cock valve of ordinary domestic gas stoves, thereby reducing the frictional resistance and the energy required for driving, and is especially suitable for driving by power devices such as micro motors.

Description of drawings

Fig. 1 is the structural representation of the gas valve of the utility model household gas stove

As shown in the figure: 1. Valve body, 2. Valve core, 3. Flow control plate, 4. Valve core passage hole, 5. Air intake hole, 6. Drive rod connecting boss, 7. Drive rod, 8. Seal Pad, 9, air outlet, 10, flow control hole, 11, compression spring, 12, bonnet, 13, spool connection hole, 14, O-shaped sealing ring.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

As shown in Figure 1, in this specific embodiment, the utility model gas valve consists of a valve body (1), a valve core (2), a flow control plate (3), a pressing spring (11), a gasket (8), It consists of a valve cover (12), an O-ring (14), and a drive rod (7). The valve core (2) is installed in the groove of the valve body (1), and is sealed with the air inlet (5) on the valve body through the bottom plane, and the flow control plate (3) is installed on the valve core (2) ), the flow control plate (3) is provided with several flow control holes (10) of different specifications, the pressure spring (11) is installed on the flow control plate (3), and the bonnet (12) is provided with There is an air outlet (9), the valve cover (12) is sealed with the groove of the valve body (1) through the gasket (8), and one end of the drive rod (7) is connected to the boss (6) and the (2) is connected to the connecting hole (13) of the valve core, and the other end protrudes out of the groove of the valve body (1) through the O-ring (14). When the operator pushes the drive rod (7) to move back and forth, the drive rod connection boss (6) embedded in the valve core connection hole (13) drives the valve core (2) to move back and forth in a straight line. At this time, the operator controls the drive rod (7) Move the distance so that the spool channel hole (4) on the spool (2) is not aligned with the flow control hole (10) on the flow control plate (3), so as to realize gas shut-off. When the operator pushes the driving rod (7) to align the valve core passage hole (4) on the valve core (2) with the flow control hole (10) on the flow control plate (3), the gas flows from the intake The hole (5) enters the valve core passage hole (4) and then enters the flow control hole (10), and finally flows out from the air outlet hole (9) to realize the opening of the gas. The operator can also push the driving rod (7) to move different distances, so that the valve core passage hole (4) is aligned with the flow control hole (10) of different specifications and sizes, so as to realize the adjustment of the flow rate of the gas valve. When the gas enters the groove of the valve body, the O-ring (14) and the gasket (8) can prevent the gas from leaking from the fitting gap. When the sealing plane between the valve core (2) and the valve body (1) and the flow control plate (3) is worn due to long-term movement, the compression spring (11) can use its deformation force to press down to keep the sealing plane always in a sealed state , and at the same time, the deformation force of the compression spring (11) can also prevent the gas pressure from causing the valve core (2) to be lifted up and cause the gas to leak from the sealing plane.

Claims (1)

1. A gas valve for a household gas stove consists of a valve body (1), a valve core (2), a flow control plate (3), a pressing spring (11), a gasket (8), a valve cover (12), and an O-shaped seal Composed of ring (14) and drive rod (7), the feature is that the valve core (2) is installed in the groove of the valve body (1), and is sealed with the air inlet (5) on the valve body through the bottom plane , the flow control plate (3) is installed on the spool (2), the flow control plate (3) is provided with several flow control holes (10) of different specifications, and the flow control plate (3) is equipped with Press the spring (11), the valve cover (12) is provided with an air outlet (9), the valve cover (12) is sealed with the groove of the valve body (1) through the gasket (8), and the drive rod (7) One end is connected with the spool connecting hole (13) on the spool (2) through the connecting boss (6) of the drive rod, and the other end protrudes out of the groove of the valve body (1) through the O-ring (14).

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