CN212537929U

CN212537929U - Automatic gas regulating valve with flow limiting module

Info

Publication number: CN212537929U
Application number: CN202020866763.5U
Authority: CN
Inventors: 黄羽婵
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-02-12
Anticipated expiration: 2030-05-21

Abstract

The utility model relates to a gas automatic regulating valve with a current-limiting module, which is characterized in that a current-limiting module is arranged in a valve body to control the gas flow of inner and outer ring fires leading to a stove burner. The sleeve of the flow limiting module is provided with a gas inlet, a first valve port and a bypass port which are communicated with the inner ring gas outlet, and a second valve port which is communicated with the first valve port and the outer ring gas outlet, the two valve ports are respectively provided with a first valve plug and a second valve plug which can move in the same direction of gas flow to open and close the corresponding valve ports, and the second valve plug is provided with a moving gap. When the second valve plug closes the second valve port and the outer ring gas outlet, the first valve plug can continuously displace by virtue of the moving gap to adjust the gas flow of the inner ring gas outlet, and after the first valve port is closed in a delayed manner, the bypass port maintains the release of the gas with small flow so as to maintain the minimum firepower of the burner, thereby avoiding flameout.

Description

Automatic gas regulating valve with flow limiting module

Technical Field

The utility model relates to a possess modular current-limiting module's gas automatic regulating valve, technical content relates to the minimum firepower that utilizes the by-pass opening on the current-limiting module to maintain the furnace end, and this current-limiting mould has the advantage of easy manufacturing, installation, maintenance, can also look the gas automatic regulating valve of different aperture specifications and change, effectively saves the cost.

Background

Generally, a cooking mode is to control a burner to heat food materials to boiling with big fire or middle fire and then heat with small fire for a long time, however, in the use process of the small fire, a sudden flameout is often encountered, which causes that a user needs to turn on a gas switch valve again to ignite and then adjust to the required fire power, and the use is quite inconvenient.

The utility model discloses a designer has once developed a gas solenoid valve bypass and adjusts the structure to the easy flameout problem of cooking utensils when the small fire, and this bypass is adjusted the structure and is included a by pass port of setting on the valve body of gas solenoid valve to and the adjusting screw of the hole size of an adjustable this by pass port, this by pass port intercommunication in the upper reaches inlet end and low reaches end of giving vent to anger, when letting the valve plug seal the valve port, can maintain the minimum flow of gas, so overcome the flameout problem of cooking utensils, improve the practicality.

However, different types of gas have different compositions, and the used ranges and the internal gas pipe diameters have different specifications, so that gas electromagnetic valves with different specifications can be arranged in the ranges to adapt to different gas pipe diameters, but by-pass holes and adjusting screws are arranged on valve bodies with various specifications, extra processing and assembling procedures are required, and the maintenance is inconvenient.

In addition, taiwan bulletin TWM509321 gas flow rate adjusting device, which is also provided with a bypass hole communicating between the upstream inlet end and the downstream outlet end, is developed by some manufacturers to maintain the minimum gas flow rate when the valve plug closes the valve port. However, in the TWM509321 structure in taiwan, the first valve hole as the air inlet end and the second valve hole as the air outlet end are coaxially arranged, and the same valve plug (first valve plug) is axially displaced to alternately open and close the first and second valve holes, so that the whole structure combination is complex and the manufacturing cost is high.

In view of this, the present invention provides a gas automatic regulating valve with a modularized current-limiting module to solve the problems of inconvenient maintenance and installation and complicated structure of the bypass regulating structure of the known gas solenoid valve, which are caused by the accumulation of years of research and practical experience in the related fields.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas automatically regulated valve that possesses current-limiting module utilizes the by-pass port on the current-limiting module to maintain the minimum firepower of furnace end, and this current-limiting module has the modularized design, makes easily, installs, and the maintenance, can also look the gas automatically regulated valve of different aperture specifications and change, effectively saves the cost.

In order to achieve the above object, the utility model relates to a gas automatic regulating valve who possesses current-limiting module, this gas automatic regulating valve has a valve body that sets up between a cooking utensils furnace end and gas ooff valve, this furnace end has interior, outer ring stove fire, be equipped with an inlet end on this valve body, in a difference intercommunication, the interior, the outer ring of outer ring stove fire gives vent to anger the end, and the current-limiting through-hole of the end is given vent to anger to this inlet end of a intercommunication and interior, the outer ring, the built-in current-limiting through-hole that can accept a drive module drive and open or close of being equipped with, its characterized in that:

the flow limiting module is provided with a sleeve arranged in a flow limiting hole, the sleeve is provided with a gas inlet communicated with a gas inlet end, an inner ring gas outlet communicated with an inner ring gas outlet end and an outer ring gas outlet end respectively, a first valve port and a bypass port arranged between the gas inlet end and the inner ring gas outlet end, and a second valve port arranged between the first valve port and the outer ring gas outlet end, the first valve port and the second valve port are oppositely provided with a valve rod which receives the driving displacement of the driving module, the valve rod is provided with a first valve plug and a second valve plug which are linked with the valve rod and can correspondingly adjust the opening degrees of the first valve port and the second valve port, and the first valve plug and the second valve plug can move in the same direction of gas flow to seal the first valve port and the second valve port; the valve rod drives the second valve plug to move and abut against and close the second valve port, the moving gap enables the valve rod and the first valve plug to continuously displace until the first valve plug stops displacing and is delayed to be closed when abutting against the first valve port, and the bypass port enables gas from the gas inlet to be released from the inner ring gas outlet after the gas passes through when the first valve plug and the second valve plug close the corresponding valve ports so as to maintain the minimum flow.

By means of the structure, after the second valve plug and the first valve plug sequentially seal the corresponding valve ports in the same gas flowing direction, the bypass port enables the small gas flow from the gas inlet to be released to maintain the minimum firepower of the furnace end, flameout is prevented, the current limiting module is of a modular design, and is easy to manufacture, install and maintain, the automatic gas regulating valves with different pore sizes can be replaced according to the requirements, and cost is effectively saved.

Specific embodiments of the various elements are further described below:

when the valve is operated, the sleeve is further internally provided with an elastic element which constantly supports the second valve plug, and when the second valve plug is positioned at a position for opening the second valve port, the elastic element is supported and compressed by the second valve plug, so that a moving gap which can continuously displace the valve rod and the first valve plug is formed.

When the valve is operated, the second valve port is positioned at the downstream of the first valve port and is coaxially arranged, and the valve rod penetrates through the first valve port and the second valve port and can be driven by the driving module to axially displace relative to the first valve port and the second valve port.

In practice, the first valve plug is arranged at the middle section of the valve rod, the second valve plug is arranged at the tail end of the valve rod, and the moving gap is arranged at the joint of the second valve plug and the tail end of the valve rod;

the first valve plug comprises a conical valve block positioned at the inner edge of the first valve port and a valve plate positioned outside the first valve port, a gap for gas to flow is formed between the outer edge of the conical valve block and the inner edge of the first valve port, and the valve plate can be propped against the outside of the first valve port to seal the valve.

In practice, the relative position of the first valve plug and the second valve plug is that when the second valve plug closes the second valve port and closes the outer ring fire, the gap between the first valve plug and the first valve port still keeps the gas circulation until the valve rod continuously moves to the first valve plug to delay closing the first valve port, so as to adjust the fire power of the inner ring fire.

In practice, the valve rod is provided with a zero point sensing element at the beginning or the end of the moving path.

When the gas cooker is in use, a controller in signal connection with the gas switch valve and the gas automatic regulating valve is further arranged in the gas cooker, the furnace end is arranged on a panel of the gas cooker, and a control panel capable of operating the controller and displaying the operation state is arranged on the panel.

Compared with the prior art, the utility model discloses second valve plug, first valve plug at current limiting module successively with the gas flow equidirectional closure correspond the valve port after, maintain the minimum flow of gas through the by-pass gate, and this current limiting module has the modularized design, make easily, install, and the maintenance, can also look at the gas automatic regulating valve of different aperture specifications and change, effectively save the cost.

Hereinafter, embodiments suitable for the present invention will be described with reference to the drawings.

Drawings

Fig. 1 is a schematic view of the installation position of the present invention.

Fig. 2 is a three-dimensional sectional view of the gas automatic regulating valve of the present invention.

Fig. 3 is a schematic view of the first and second valve ports of the present invention fully opened.

Fig. 4 is a schematic diagram of the second valve port being closed and the first valve port being opened.

Fig. 5 is a schematic view of the valve rod moving in the moving gap to drive the first valve plug to close the first valve port.

Fig. 6 is a schematic diagram of the first valve port and the second valve port of the present invention being completely closed and the gas flowing through the bypass hole.

Fig. 7 shows the installation position of the zero point sensor of the present invention.

Description of reference numerals: 100 gas automatic regulating valve; 200 furnace ends; 201, an inner ring of furnace fire; 202, carrying out external ring furnace fire; 300 gas switching valve; 400 a current limiting module; 500 a drive module; 501 a transmission component; 502 a leak-proof membrane; 600 a controller; 601 a control panel; 10 a valve body; 11 an air inlet end; 12 an inner ring air outlet end; 13 an outer ring air outlet end; 14 a current limiting via; 20 a sleeve; 21 a gas inlet; 22 an inner ring gas outlet; 23 outer ring gas outlet; 30 a first valve port; 40 by-pass ports; 50 a second valve port; a 60 stem; 61 a first valve plug; 62 a second valve plug; 611 a conical valve block; 612 valve plate; 613 slits; 63 moving the gap; 64 an elastic element; and 70, a zero point sensing element.

Detailed Description

As shown in fig. 1, the present invention relates to a gas automatic regulating valve with a current limiting module, wherein the gas automatic regulating valve 100 is disposed between a burner 200 and a gas switch valve 300 of a cooker, for controlling the amount of gas flowing to inner and

outer ring burners

201, 202 of the burner 200.

As shown in fig. 2 to 4, the gas automatic regulating valve 100 has a valve body 10 for gas to flow through, the valve body 10 is provided with an air inlet 11, inner and outer

ring air outlet

12, 13 respectively communicating with the inner and

outer ring fires

201, 202, and a flow limiting through hole 14 communicating the air inlet 11 with the inner and outer

ring air outlet

12, 13, the flow limiting through hole 14 is internally provided with a flow limiting module 400, and the flow limiting module 400 can be driven to open or close by a driving module 500.

In the illustration, the driving module 500 is a stepping motor disposed outside the valve body 10, and a transmission assembly 501 is extended toward the inside of the valve body 10, the transmission assembly 501 can drive the flow limiting module 400 to open or close, a leakage-proof membrane 502 is disposed between the driving module 500 and the valve body 10, and the leakage-proof membrane 502 has a through hole for the transmission assembly 501 to penetrate through the inside of the valve body 10, and can prevent the gas from leaking from the joint of the driving module 500 and the valve body 10.

The flow-limiting module 400 has a sleeve 20 disposed in the flow-limiting through hole 14, the sleeve 20 is provided with a gas inlet 21 communicated with the gas inlet 11, inner and outer

ring gas outlets

22, 23 respectively communicated with the inner and outer

ring gas outlets

12, 13, a first valve port 30 and a bypass port 40 disposed between the gas inlet 21 and the inner ring gas outlet 22, and a second valve port 50 disposed between the first valve port 30 and the outer ring gas outlet 23.

The first and

second valve ports

30, 50 are provided with a valve stem 60 at a position opposite to each other for receiving the driving displacement of the driving assembly 501 of the driving module 500, and the valve stem 60 is provided with a first and

second valve plugs

61, 62 which are linked with the valve stem 60 to adjust the opening degrees of the first and

second valve ports

30, 50.

In the figure, the second valve port 50 is located downstream of the first valve port 30 and is coaxially disposed, the valve rod 60 is inserted into the first and

second valve ports

30, 50 and can be directly driven by the driving module 500 to axially displace relative to the first and

second valve ports

30, 50, so that the first and

second valve plugs

61, 62 can close the corresponding valve ports in the same direction of the gas flow, thereby making the first valve plug 61 close to or far from the first valve port 30 to control the fire power of the inner ring fire 201, and making the second valve plug 62 close to or far from the second valve port 50 to control the fire power of the outer ring fire 202. In practice, the transmission assembly does not exclude the linkage of the valve rod through a lever assembly (not shown in the figure) to indirectly drive the valve plug to close the corresponding valve port.

The first valve plug 61 is disposed at the middle section of the valve stem 60, and the second valve plug 62 is disposed at the end of the valve stem 60. The first valve plug 61 includes a conical valve block 611 located at the inner edge of the first valve port 30, and a valve plate 612 located at the outer portion of the first valve port 30, wherein a gap 613 for gas to flow is formed between the outer edge of the conical valve block 611 and the inner edge of the first valve port 30.

The relative position of the first valve plug 61 and the second valve plug 62 is that when the second valve plug 62 closes the second valve port 50 and closes the outer ring fire, the gap 613 between the first valve plug 61 and the first valve port 30 still keeps the gas flowing, and maintains a stable flow until the valve stem 60 continuously moves to the position where the valve plate 612 abuts against the outside of the first valve port 30 to seal the valve, so that the user can adjust the fire power of the inner ring fire.

A moving gap 63 is provided at the connection between the second valve plug 62 and the end of the valve rod 60, which enables the first valve plug 61 to delay to close, after the valve rod 60 drives the second valve plug 62 to move to abut against and close the second valve port 50, the moving gap 63 enables the valve rod 60 and the first valve plug 61 to continuously move, until the first valve plug 61 closes the first valve port 30, the valve rod 60 stops moving, so as to control the gas flow to the inner ring and the outer ring of the furnace fire respectively.

In practice, an elastic element 64 is further disposed in the sleeve 20 for constantly supporting the second valve plug 62, and when the second valve plug 62 is located at a position for opening the second valve port 50, the elastic element 64 is pressed by the second valve plug 62, so as to form a moving gap 63 in which the valve stem 60 and the first valve plug 61 can be continuously displaced.

The bypass port 40 is connected to the gas inlet 21 and the inner ring gas outlet 22, and when the first and

second valve plugs

61 and 62 close the corresponding valve ports, the gas from the gas inlet 21 can pass through and be released from the inner ring gas outlet 22 to maintain the minimum flow rate.

As shown in fig. 4, when the user adjusts the gas switch valve and the control valve rod 60 drives the second valve plug 62 to axially displace to close the second valve port 50 in the same direction as the gas flow to close the outer ring flame 202, a gap 613 is still maintained between the first valve plug 61 and the first valve port 30 to maintain the combustion of the inner ring flame 201. Meanwhile, the elastic member 64 constantly supports the second valve plug 62, and a moving gap 63 is maintained between the stem 60 and the second valve plug 62.

As shown in fig. 5 and 6, when the user adjusts the inner ring fire to the minimum fire, the valve rod 60 can continuously move due to the moving gap 63, and drives the valve plate 612 to move toward the first valve port 30, so as to control the distance of the gap 613 until the valve plate 612 of the first valve plug 61 closes the first valve port 30 in the same direction as the gas flow, so that the user can continuously adjust the fire power of the inner ring fire 201 after closing the outer ring fire.

At this time, the small flow of gas from the gas inlet 21 can still pass through the bypass port 40, and then is released from the inner ring gas outlet 22 to maintain the minimum flow of gas, so as to prevent the burner from extinguishing; of course, if the burner is not in use, the user can close the gas switching valve 300 at the upstream end of the gas inlet 11 to stop the gas supply, and no accident of leakage occurs.

By means of the above structure, since the flow restriction module 400 modularly integrates and arranges the components such as the gas inlet 21, the gas outlet 22, the first and

second valve ports

30, 50, the bypass port 40, the valve rod 60, the first and

second valve plugs

61, 62, etc. in the sleeve 20, it has the advantages of easy manufacture and installation, and if the first and

second valve plugs

61, 62, the valve rod 60 are damaged or the bypass port 40 is blocked, the whole set of flow restriction module 400 can be easily detached from the whole set of flow restriction through holes on the valve body 10 for maintenance and replacement, and the automatic gas adjustment valves with different aperture specifications can be replaced and assembled, thereby effectively saving the cost.

In addition, in order to allow the driving module 500 to sense the position of the maximum fire of the valve or the burner, and further to precisely control the moving stroke of the valve rod 60 driving the flow limiting module 400, as shown in fig. 7, the valve rod 60 is provided with a zero point sensing element 70 at the beginning or the end of the moving path, so as to obtain a beginning or end position by touching or sensing, which is used as a reference point for the driving module 500 to drive the valve rod 60 to move the amount of displacement.

Furthermore, as shown in fig. 1, a controller 600 and a control panel 601 for displaying the operation status are further disposed in the cooking stove, the controller 600 is in signal connection with the gas switch valve 300 and the gas automatic regulating valve 100 for automatic constant temperature regulation of the gas fire, or for sectional temperature regulation, so that the user can control the fire more conveniently and accurately.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a gas automatic regulating valve who possesses current-limiting module, this gas automatic regulating valve has a valve body that sets up between a cooking utensils furnace end and gas ooff valve, this furnace end has interior, outer ring stove fire, be equipped with an inlet end on this valve body, in a communicate respectively, the interior, outer ring of outer ring stove fire gives vent to anger the end, and a current-limiting through hole that this inlet end of intercommunication and interior, outer ring give vent to anger the end, the built-in current-limiting module that can accept a drive module drive to open or close that is equipped with of this current-limiting through hole, its characterized in that:

the flow limiting module is provided with a sleeve arranged in a flow limiting hole, the sleeve is provided with a gas inlet communicated with a gas inlet end, an inner ring gas outlet communicated with an inner ring gas outlet end and an outer ring gas outlet end respectively, a first valve port and a bypass port arranged between the gas inlet end and the inner ring gas outlet end, and a second valve port arranged between the first valve port and the outer ring gas outlet end, the relative positions of the first valve port and the second valve port are provided with a valve rod which receives the driving displacement of the driving module, the valve rod is provided with a first valve plug and a second valve plug which are linked with the valve rod and can correspondingly adjust the opening degrees of the first valve port and the second valve port, and the first valve plug and the second valve plug can move in the same direction of gas flow to seal the first valve port and the second valve port; the valve rod drives the second valve plug to move and abut against and close the second valve port, the moving gap enables the valve rod and the first valve plug to continuously displace until the first valve plug stops displacing and is delayed to be closed when abutting against the first valve port, and the bypass port enables gas from the gas inlet to be released from the inner ring gas outlet after the gas passes through when the first valve plug and the second valve plug close the corresponding valve ports so as to maintain the minimum flow.

2. The automatic gas regulating valve with flow limiting module of claim 1, wherein an elastic element is disposed in the sleeve and constantly supports the second valve plug, and when the second valve plug is located at a position for opening the second valve port, the elastic element is compressed by the second valve plug, so as to form a moving gap in which the valve stem and the first valve plug can continuously move.

3. The automatic gas regulating valve with a flow-limiting module according to claim 1, wherein the second valve port is disposed downstream of the first valve port and coaxially disposed, and the valve stem is disposed through the first valve port and the second valve port and is capable of being driven by the driving module to axially displace relative to the first valve port and the second valve port.

4. The automatic gas regulating valve with a flow limiting module of claim 3, wherein the first valve plug is disposed at the middle section of the valve stem, the second valve plug is disposed at the end of the valve stem, and the moving gap is disposed at the connection position of the second valve plug and the end of the valve stem;

5. The automatic gas regulating valve with a flow limiting module of claim 4, wherein the relative position of the first valve plug and the second valve plug is such that when the second valve plug closes the second valve opening and closes the outer ring fire, the gap between the first valve plug and the first valve opening still keeps allowing the gas to flow until the valve stem continuously moves to the first valve plug to delay closing the first valve opening, so as to adjust the fire intensity of the inner ring fire.

6. The automatic gas regulating valve with a flow limiting module according to any one of claims 1 to 5, wherein the valve stem is provided with a zero point sensing element at the beginning or end of the moving path.

7. The automatic gas regulating valve with a current limiting module of any one of claims 1 to 5, wherein a controller is disposed in the stove and is in signal connection with the gas switch valve and the automatic gas regulating valve, the burner is disposed on a panel of the stove, and a control panel capable of operating the controller and displaying the operating state is disposed on the panel.