CN108167496A - A kind of gas kitchen ranges plug valve - Google Patents

Abstract

The invention discloses a kind of gas kitchen ranges plug valve, the spool including valve body and in valve body, it is characterised in that：Further include the capping up and down mounted on valve body upper and lower end parts, it is connect in second shaft lower end and the spool, upper end passes through upper capping, first rotating shaft is provided in the spool, first rotating shaft lower end coordinates with current potential device assembly, the current potential device assembly is connect with the display screen on kitchen range, and the first rotating shaft lower end coordinates with valve body lower end sealing, and body base is provided with lower capping to be sealed with body base；By being improved to the plug valve used on existing gas kitchen ranges, shaft lower end is directly coordinated between potentiometer, it can ensure that when the second shaft is rotated valve drives Spool rotating to drive potentiometer can synchronous rotary simultaneously, realize that angle signal is synchronous and is shown by the display screen on kitchen range, ensure gas kitchen ranges in use, practical firepower size is synchronous with display to ensure that firepower is precisely adjusted in cooking process.

Description

Plug valve for gas cooker

technical field

The invention belongs to a gas cooker, in particular to a cock valve for a gas cooker.

Background technique

The cock valve is one of the key components of household gas cookers. Its main function is to realize gas on-off and gas flow adjustment. With the development of intelligent products and precise control products, the research on cock valves has gradually become the focus of industry research.

During the cooking process, different dishes require different firepower, and different cooking stages also require different firepower, so that users often need to bend down to check the firepower during the cooking process. For users who cook less, even if they look at the state of the fire If you don't know the specific firepower, users will rely more and more on gas stoves with firepower display.

At present, gas stoves with firepower display are mainly motor valves and proportional valves. These are touch-controlled adjustments. The research is relatively immature, and the user acceptance is poor. For gas stoves with cock valves, there is a patent number: 2016212286235, A gas cooker cock valve. In this structure, the valve rod is used to control and adjust the valve core set in the valve body, but the adjustment is not very accurate; in addition, a potentiometer is used, which is set on the rotary shaft of the knob, and the rotary shaft rotates when it is rotated. Angle, and converted into signal display, the main disadvantage of this type of structure is that the display is not synchronized with the actual firepower, which is easy to mislead the user.

Contents of the invention

In view of the above problems, the present invention provides a cock valve for a gas cooker, which is connected to the valve core through a rotating shaft, and the potentiometer can rotate synchronously when the valve core rotates, so as to realize the synchronization of the angle signal and ensure that the gas cooker is in use. Synchronized with the display to ensure precise adjustment of firepower during cooking.

A cock valve for a gas cooker, comprising a valve body and a valve core located in the valve body, characterized in that: it also includes upper and lower covers installed on the upper and lower ends of the valve body, the lower end of the second rotating shaft is connected with the valve core, and the upper end Through the upper cover, the valve core is provided with a first rotating shaft, the lower end of the first rotating shaft cooperates with the potentiometer assembly, the potentiometer assembly is connected with the display screen on the cooker, and the lower end of the first rotating shaft is connected with the lower end of the valve body For sealing fit, a lower cover is arranged at the bottom of the valve body to seal with the bottom of the valve body. Through the above structure, by turning the second rotating shaft, since the second rotating shaft is located in the valve core, the second rotating shaft drives the valve core to rotate, and at the same time, the valve core drives the first rotating shaft to rotate, and the lower end is connected to the potentiometer; the potentiometer is welded to the circuit board. Potentiometer assembly, the potentiometer assembly is set on the bottom surface of the valve body; the potentiometer shaft, the valve core shaft and the second shaft, the first shaft is coaxial design, the synchronous rotation is realized when the valve core rotates, and the potentiometer transmits the rotation angle signal to the cooker The display screen is processed by the chip to realize the corresponding signal display. In this way, the actual firepower is synchronized with the display, ensuring precise adjustment of the firepower during the cooking process;

Further: a paddle is set on the second rotating shaft, the paddle abuts against the reed of the micro switch, and the micro switch is electrically connected with the cooker controller. Through the contact between the micro switch and the paddle, it is possible to clearly reflect the amount of rotation of the second rotating shaft or a small rotation, thereby achieving the purpose of precise adjustment.

Further: a boss is provided on the lower part of the first rotating shaft, a spring is set under the boss, and the lower end of the spring leans against a sealing plate, and the sealing plate is sealingly matched with the boss at the lower end of the valve body. By providing a spring, pressure can be applied to the sealing plate to ensure sealing and prevent gas leakage.

Further: the potentiometer assembly includes a potentiometer and a circuit board electrically connected to the potentiometer, and the circuit board is connected to the display screen on the cooking range. The structure is simple and convenient to manufacture.

Further: the micro switch is installed on the outer wall of the valve body, a notch is opened on the valve body, and the plectrum contacts the reed of the micro switch through the notch. This structure is convenient to cooperate with the provided micro switch.

Further: a limiting piece is arranged on the outer periphery of the plectrum, and the limiting piece cooperates with the boss on the valve core. The structure is simple to set, and the limit is convenient and flexible.

Further: the bottom of the valve body is provided with a groove, the sealing ring is located in the groove, the lower cover is fixed on the bottom of the valve body by screws and compresses the sealing ring. This structure is mainly to increase the sealing effect and further ensure that the gas does not leak.

Beneficial effect

The beneficial effect of the present invention is: by improving the cock valve used on the existing gas cooker, the lower end of the rotating shaft is directly matched with the potentiometer, which can ensure that when the second rotating shaft is rotated, the valve drives the valve core to rotate and at the same time drives the potentiometer It can rotate synchronously to realize the synchronization of the angle signal and display it on the display screen on the cooker, so as to ensure that the actual firepower of the gas cooker is synchronized with the display during the use of the gas cooker to ensure the precise adjustment of the firepower during the cooking process.

Description of drawings

Fig. 1 is the structural representation of plug valve of the present invention

Figure 2 is a structural schematic diagram of a cross-sectional view of a plug valve

Detailed ways

As an embodiment of the present invention, as shown in Figures 1 and 2, the cock valve has at least one inlet passage 17 and one outlet passage, and the spool side arranged in the cock valve body is used to adjust the gas volume by rotation The size of a plug valve for a gas cooker includes a valve body 5 and a valve core 11 located in the valve body, and also includes upper and lower covers 13 and 2 installed on the upper and lower ends of the valve body, and the lower end of the second rotating shaft 15 is connected to the valve body. The core 15 is internally connected, and the upper end passes through the upper cover 13, and the upper cover is fixed on the upper end surface of the valve body by screws 14. The first rotating shaft 10 is arranged inside the valve core, and the lower end of the first rotating shaft cooperates with the potentiometer assembly 3. The potentiometer assembly is connected to the display screen on the cooker, the lower end of the first rotating shaft is in sealing fit with the lower end of the valve body, and a lower cover is arranged at the bottom of the valve body to seal with the bottom of the valve body. In this structure, the upper end of the valve core is provided with a second rotating shaft, and the inside of the valve core is provided with a first rotating shaft. The lower end of the first rotating shaft passes through the lower cover of the cock valve and is inserted into the rotary hole of the potentiometer at the bottom of the cock valve to ensure the sealing of the valve body. , The lower end of the valve shaft A is provided with a sealing mechanism (sealing ring), and a spring, a sealing plate, etc. are used to ensure a reliable sealing structure, in order to further improve the safety of the valve body. The potentiometer assembly is sealed on the bottom of the cock valve through the lower sealing cover, and the matching surface of the lower sealing cover and the lower cover of the cock valve is provided with a groove. When assembling, a sealing ring is added in the groove to realize double sealing. Rotating shaft, because the second rotating shaft is located in the spool, the second rotating shaft drives the spool to rotate, and at the same time the spool drives the first rotating shaft to rotate, and the lower end is connected to the potentiometer; the potentiometer is welded to the circuit board to form a potentiometer assembly, and the potentiometer assembly On the bottom of the valve body; the shaft of the potentiometer, the shaft of the spool and the second shaft, the first shaft is designed to be coaxial, and the synchronous rotation is realized when the spool rotates. The potentiometer transmits the rotation angle signal to the display screen on the cooker, which is processed by the chip Realize the corresponding signal display. In this way, the actual firepower is synchronized with the display, ensuring precise adjustment of the firepower during the cooking process;

In this embodiment: a pick 12 is set on the second rotating shaft 15, and the pick contacts with the reed of the micro switch 6, and the micro switch is electrically connected with the cooker controller. Through the contact between the micro switch and the paddle, it is possible to clearly reflect the amount of rotation of the second rotating shaft or a small rotation, thereby achieving the purpose of precise adjustment.

In this embodiment: a boss 16 is provided at the lower part of the first rotating shaft, a spring 9 is set under the boss, and the lower end of the spring is against a sealing plate 8, and the sealing plate is sealingly matched with the boss at the lower end of the valve body. There is still a sealing ring B7 at the lower end of the sealing plate; by setting a spring, pressure can be applied to the sealing plate to ensure sealing and prevent gas leakage.

In this embodiment: the potentiometer assembly 3 includes a potentiometer 31 and a circuit board 32 electrically connected to the potentiometer, and the circuit board is connected to the display screen on the cooking range. The structure is simple and convenient to manufacture.

In this embodiment: the micro switch is installed on the outer wall of the valve body, a notch is formed on the valve body, and the plectrum contacts the reed of the micro switch through the notch. This structure is convenient to cooperate with the provided micro switch.

In this embodiment: a limiting piece is arranged on the outer periphery of the plectrum, and the limiting piece cooperates with the boss on the valve core. The structure is simple to set, and the limit is convenient and flexible.

In this embodiment: the bottom of the valve body is provided with a groove, the sealing ring A4 is located in the groove, the lower cover 2 is fixed on the bottom of the valve body by screws 1 and the sealing ring is pressed. This structure is mainly to increase the sealing effect and further ensure that the gas does not leak.

In this structure, when the product is in use, the knob (cooker controller) is rotated, the knob drives the valve shaft B to rotate, the valve shaft B drives the valve core to rotate, and the valve core rotates to drive the first rotating shaft to rotate, (in this structure, the first rotating shaft and The spool can be matched with a shaft and a key or a special shape, as long as there is no rotation between the spool and the first shaft) The rotation of the first shaft will drive the shaft of the potentiometer to rotate, and the potentiometer will transmit the angle signal to the display The components are processed by the chip, and the angle signal is converted into a firepower signal for display.

The potentiometer is welded on the circuit board to form a circuit board assembly. The circuit board assembly is prevented from being connected to the groove at the bottom of the valve body, and is fixed by the lower sealing plate. The lower sealing plate and the lower cover of the cock valve are sealed and connected by a sealing ring to seal the circuit board assembly. Internally, it prevents the internal gas of the plug valve from leaking out of the valve body through the hole of the lower cover of the plug valve through the first rotating shaft under special circumstances.

Claims (7)

1. a kind of gas kitchen ranges plug valve, including valve body, first rotating shaft, the second shaft and the spool in valve body, It is characterized in that：The capping up and down mounted on valve body upper and lower end parts is further included, is connect in the second shaft lower end and the spool, upper end Across upper capping, first rotating shaft is provided in the spool, first rotating shaft lower end coordinates with current potential device assembly, the potentiometer group Part is connect with the display screen on kitchen range, and the first rotating shaft lower end coordinates with valve body lower end sealing, in the case where body base is provided with Capping is sealed with body base.

2. gas kitchen ranges plug valve according to claim 1, it is characterised in that：It is set with and dials in second shaft Piece, plectrum are abutted with the reed of microswitch, and the microswitch is electrically connected with kitchen range controller.

3. gas kitchen ranges plug valve according to claim 1, it is characterised in that：It is provided in first rotating shaft lower part convex Platform, is set with spring below boss, and for the lower spring end against there is a sealing plate, the boss of the sealing plate and valve body lower end is close Envelope cooperation.

4. gas kitchen ranges plug valve according to claim 3, it is characterised in that：The current potential device assembly includes potentiometer And the circuit board being electrically connected with potentiometer, the circuit board are connect with the display screen on kitchen range.

5. gas kitchen ranges plug valve according to claim 4, it is characterised in that：The microswitch is mounted on outside valve body On wall, recess is offered on the valve body, the reed of the plectrum and microswitch is abutted against by recess.

6. gas kitchen ranges plug valve according to claim 5, it is characterised in that：Limiting is provided on the plectrum periphery Piece, the banking stop coordinate with the boss on spool.

7. gas kitchen ranges plug valve according to claim 6, it is characterised in that：The body base setting is fluted, In the grooves, the lower capping is fixed by screws in body base and compresses sealing ring the sealing ring.