Gas valve and gas hob comprising same

Abstract

The utility model provides a kind of gas valve and the gas stove comprising it.The kind of gas valve includes valve stem and air door piece, air door piece connects valve stem and along the extension direction of valve stem with valve stem synchronous movement, to adjust the degree of air door piece sheltering the air inlet of ejector pipe;Wherein, when valve stem moves downward along extension direction, the degree of air door piece sheltering air inlet increases. User presses valve stem ignition, valve stem moves downward, drives air door piece synchronous downward, reduces the opening degree of ejector pipe air inlet, reduces air intake, increases the proportion of gas in pipe, improves inner and outer ring fire length, so that ignition and transmission fire success rate is higher. After ignition is completed and valve stem is released, air door piece resets with valve stem, the opening degree of ejector pipe air inlet recovers, guarantees normal air intake under non-ignition state.

Description

Technical Field

[0001] This utility model relates to the field of gas equipment technology, and in particular to a gas valve and a gas stove containing the same. Background Technology

[0002] In daily life, gas stoves are an essential piece of equipment in the family kitchen, and their ignition success rate directly affects the user experience. However, when users attempt to ignite their existing gas stoves, the proportion of air in the injector tube is too high as the gas from the gas valve just enters the stove, resulting in insufficient gas entering the burner. This can sometimes lead to ignition failure, impacting the user experience. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defect of low ignition success rate of gas stoves in the prior art, and to provide a gas valve and a gas stove containing the same.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A gas valve includes a valve stem and a damper plate, the damper plate being connected to the valve stem and moving synchronously with the valve stem along the extension direction of the valve stem to adjust the degree to which the damper plate blocks the air inlet of the ejector tube;

[0006] When the valve stem moves downward along the extension direction, the degree to which the damper plate blocks the air inlet increases.

[0007] When the user presses the valve stem to ignite the gas, the stem moves downwards along its extension direction. A damper plate, connected to the valve stem and moving synchronously with it, also moves downwards, increasing the obstruction of the air inlet of the injector. This reduces the opening of the air inlet during ignition, decreasing the amount of air entering the injector and increasing flow resistance within it, thus preventing excessive gas velocity. Therefore, by reducing the damper opening during ignition, the proportion of gas in the injector increases, resulting in a longer flame compared to when the damper opening is not reduced, leading to a higher success rate for ignition and flame propagation. After ignition, releasing the valve stem returns the damper plate to its original position, restoring the air inlet opening to its original state, ensuring adequate airflow into the injector when not ignited.

[0008] Preferably, the gas valve includes a damper opening adjustment mechanism, the damper plate is connected to the valve stem through the damper opening adjustment mechanism, and the position of the damper opening adjustment mechanism relative to the valve stem along the extension direction is adjustable.

[0009] Users can adjust the damper opening degree relative to the valve stem along the extension direction through the damper opening adjustment mechanism, and fix the damper opening degree adjustment mechanism at a certain position relative to the valve stem so that the damper opening degree is kept at a certain fixed value, thus realizing the function of independently adjusting the damper opening degree without pressing the valve stem.

[0010] Preferably, the damper opening adjustment mechanism is threadedly connected to the valve stem, so that the position of the damper opening adjustment mechanism relative to the valve stem along the extension direction is adjustable.

[0011] The use of a threaded connection allows the position of the damper adjustment mechanism relative to the valve stem to be adjusted by screwing, thus achieving precise positioning of the damper opening adjustment mechanism on the valve stem and accurately adjusting the damper opening.

[0012] Meanwhile, the threaded connection has a self-locking property, which can prevent the damper opening adjustment mechanism from loosening due to vibration, external force, or other factors, thus ensuring the stability of the damper opening setting during gas valve operation. Furthermore, the installation and disassembly of the threaded connection are relatively simple; using common tools such as wrenches, the damper opening adjustment mechanism and valve stem can be easily assembled and disassembled, facilitating the production, installation, commissioning, and subsequent maintenance of the gas valve.

[0013] Preferably, the damper opening adjustment mechanism is located close to the valve stem.

[0014] Setting the damper opening close to the valve stem makes full use of the space around the valve stem, resulting in a more compact overall structure for the gas valve. Compared to placing the damper opening adjustment mechanism far from the valve stem, this arrangement effectively saves internal space in the gas valve, has a shorter transmission path, and reduces energy loss during transmission, thus significantly improving transmission efficiency.

[0015] Preferably, the bottom end of the damper opening adjustment mechanism abuts against the damper plate;

[0016] The gas valve also includes a resilient component that applies an upward force along the extension direction to the damper plate.

[0017] The bottom end of the regulating mechanism directly abuts against the damper plate, enabling direct transmission of action and reducing energy loss and error accumulation in intermediate stages. The displacement of the regulating mechanism is linearly related to the change in the damper plate opening. Operators can accurately predict the damper plate opening based on the range of motion of the regulating mechanism, facilitating stable and repeatable adjustments and promoting stable control of combustion. Furthermore, this design tightly integrates the regulating mechanism and the damper plate, resulting in a compact overall structure that saves internal space in the gas valve and allows for the rational layout of other components within a limited space.

[0018] The elastic component can hold the damper plate in place, allowing the adjusting mechanism to adjust the damper plate. When the adjusting mechanism is adjusted to a position where no force is applied to the damper plate, the elastic component can apply an upward force along the extension direction to the damper plate, causing the damper plate to return to its highest position. This restores the opening degree of the air inlet of the injector tube to its maximum, ensuring complete combustion of the gas stove.

[0019] Preferably, the elastic component includes a spring and a support platform, the support platform being fixed in the gas valve, and the spring and the support platform abutting against the damper plate below along the extending direction.

[0020] The structure of the spring and the support platform is relatively simple and easy to install, and the manufacturing cost is relatively low. The support platform is fixed in the gas valve, providing stable support for the spring, which rests directly against the lower part of the damper plate along its extension direction. This simple structure reduces the number and complexity of parts, lowers the probability of failure, and improves the reliability and stability of the elastic component.

[0021] Preferably, the damper plate is bent vertically toward the damper opening adjustment mechanism and extends to the valve stem.

[0022] By setting the damper plate to bend vertically toward the damper opening adjustment mechanism, the overall size of the adjustment mechanism can be effectively reduced, and the damper plate can be effectively restricted even when the size of the adjustment mechanism is small.

[0023] Preferably, the gas valve further includes a gas nozzle, and the damper includes a limiting structure that abuts against the side of the gas nozzle to limit the relative movement of the damper and the air inlet in a direction other than the extending direction.

[0024] When the damper plate and the valve stem move synchronously along the extension direction, the limiting structure can effectively restrict the relative movement of the damper plate relative to the air inlet in the non-extension direction.

[0025] Preferably, the damper opening adjustment mechanism is located below the gas knob.

[0026] While adjusting the gas flow using the gas knob, users can naturally operate the damper opening adjustment mechanism below with their hand, without significantly changing their hand position or posture. This improves the convenience and comfort of operation, allowing users to adjust the damper opening promptly and flexibly according to actual combustion conditions to achieve optimal combustion results. Furthermore, this layout makes full use of the space below the gas knob, resulting in a more compact overall structure for the gas valve and effectively saving installation space.

[0027] This utility model also provides a gas stove, which includes the gas valve as described above.

[0028] The positive and progressive effects of this utility model are as follows: when the user presses the valve stem of the gas valve to ignite it, the valve stem will move downward along its extension direction. By connecting the damper plate in the gas valve to the valve stem and moving synchronously with the valve stem, the damper plate will also move downward at the same time, thereby increasing the degree of obstruction of the air inlet of the injector tube. This reduces the opening degree of the air inlet during ignition, decreases the amount of air entering the injector tube, increases the flow resistance in the injector tube, and prevents the gas flow rate from being too fast.

[0029] Therefore, by reducing the damper opening during ignition, the proportion of gas in the injector tube increases, resulting in a longer flame length compared to not reducing the damper opening, and a higher success rate for ignition and flame propagation.

[0030] At the same time, after ignition is completed, the valve stem is released, and the damper plate returns to its original position with the valve stem. The opening degree of the air inlet will return to its original state, ensuring the air intake of the ejector tube in the non-ignition state. Attached Figure Description

[0031] Figure 1 This is a perspective view of a gas valve according to an embodiment of the present invention.

[0032] Figure 2 This is a perspective view (a) of a gas valve and an ejector tube according to an embodiment of the present invention.

[0033] Figure 3 This is a perspective view (II) of a gas valve and ejector tube according to an embodiment of the present invention.

[0034] Figure 4 This is a perspective view (iii) of a gas valve and ejector tube according to an embodiment of the present invention.

[0035] Figure 5 This is a perspective view of a gas stove according to an embodiment of the present invention.

[0036] Explanation of reference numerals in the attached figures:

[0037] Gas stove 1

[0038] Gas valve 10

[0039] 100 damper plate

[0040] Limiting structure 110

[0041] Valve stem 200

[0042] 300 damper opening adjustment mechanism

[0043] Bottom 310

[0044] Elastic component 400

[0045] Spring 410

[0046] 420 carrier platform

[0047] Gas nozzle 500

[0048] Side view 510

[0049] Gas knob 600

[0050] Burner 70

[0051] ejector tube 700

[0052] 710 air inlet

[0053] Extension direction A

[0054] Gas pipeline 80

[0055] External frame 90 Detailed Implementation

[0056] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0057] like Figures 1-5 As shown, this utility model provides a gas stove 1, which includes a gas pipe 80 and an outer frame 90. The outer frame 90 provides a stable support structure for the internal parts of the gas stove 1. The gas stove 1 also includes a gas valve 10 for supplying gas to the burner 70 of the gas stove 1. Specifically, the gas pipe 80 inputs gas into the gas valve 10. The gas nozzle 500 of the gas valve 10 is located at the air inlet 710 of the injector tube 700 of the burner 70, supplying gas to the air inlet 710 of the injector tube 700 to inject air around the air inlet 710 into the injector tube 700, thereby achieving the mixing of air and gas. The mixed gas-air mixture is burned at the burner holes of the burner 70 to achieve the purpose of heating.

[0058] Among them, such as Figures 1-5 As shown, the gas valve 10 includes a valve stem 200 and a damper plate 100. The damper plate 100 is disposed at the air inlet 710 to adjust the opening of the air inlet 710. The damper plate 100 is connected to the valve stem 200 and moves synchronously with the valve stem 200 along the extension direction A of the valve stem 200 to adjust the degree to which the damper plate 100 blocks the air inlet 710 of the injector tube 700. When the valve stem 200 moves downward along the extension direction A, the degree to which the damper plate 100 blocks the air inlet 710 increases.

[0059] In this device, when the user presses the valve stem 200, the damper plate 100 connected to the valve stem 200 also moves downwards simultaneously. At this time, the damper plate 100 increases the degree to which it blocks the air inlet 710 of the injector tube 700. When the damper plate 100 moves to its lowest point, the air inlet 710 of the injector tube 700 is opened to its minimum extent, the proportion of gas in the injector tube 700 increases, and the flame length of the inner and outer rings is longer compared to when the damper opening is not reduced, resulting in a higher success rate of ignition and flame propagation.

[0060] like Figures 1-5 As shown, in this embodiment, the gas valve 10 includes a damper opening adjustment mechanism 300. The damper plate 100 is connected to the valve stem 200 through the damper opening adjustment mechanism 300. The position of the damper opening adjustment mechanism 300 relative to the valve stem 200 along the extension direction A is adjustable.

[0061] The damper opening adjustment mechanism 300 serves as a connecting intermediary between the damper plate 100 and the valve stem 200. The damper opening adjustment mechanism 300 is adjustable relative to the valve stem 200 along the extending direction A. The user can fix the damper opening adjustment mechanism 300 at a specific position relative to the valve stem 200, thereby maintaining the damper opening degree at a fixed value. In other embodiments, the adjustable connection between the two can be achieved through other related technical means; this part belongs to the prior art in this technical field and will not be elaborated here.

[0062] In this embodiment, the damper opening adjustment mechanism 300 is threadedly connected to the valve stem 200 so that the position of the damper opening adjustment mechanism 300 relative to the valve stem 200 along the extension direction A is adjustable.

[0063] By threading the damper opening adjustment mechanism 300 to the valve stem 200, precise positioning of the damper opening adjustment mechanism 300 on the valve stem 200 can be achieved by accurately controlling the number of rotations, thereby precisely adjusting the damper opening. The thread has a self-locking characteristic, which can prevent the damper opening adjustment mechanism 300 from loosening due to vibration, external force, or other factors, ensuring the stability of the damper opening setting of the gas valve 10 during operation. Furthermore, the installation and disassembly of the threaded connection are relatively simple. Assembly and disassembly of the damper opening adjustment mechanism 300 and the valve stem 200 can be easily achieved using common tools such as wrenches, facilitating the manufacturing, installation, commissioning, and subsequent maintenance of the gas valve 10.

[0064] like Figures 1-5 As shown, in this embodiment, the damper opening adjustment mechanism 300 is located near the valve stem 200.

[0065] Setting the damper opening close to the valve stem 200 makes full use of the space surrounding the valve stem 200, resulting in a more compact overall structure for the gas valve 10. Compared to placing the damper opening adjustment mechanism 300 away from the valve stem 200, this arrangement effectively saves internal space in the gas valve 10, shortens the transmission path, and reduces energy loss during transmission, thus improving transmission efficiency. In this embodiment, the damper opening adjustment mechanism 300 is arranged around the outer periphery of the valve stem 200. In other embodiments, the damper opening adjustment mechanism 300 can also be placed in other spatial locations close to the valve stem 200 to achieve the effect of improving transmission efficiency. This part belongs to the prior art in this field and will not be described in detail here.

[0066] like Figures 1-5 As shown, in this embodiment, the bottom end 310 of the damper opening adjustment mechanism 300 abuts against the damper plate 100; the gas valve 10 also includes an elastic component 400, which applies an upward force along the extension direction A to the damper plate 100.

[0067] The bottom end 310 of the adjusting mechanism directly abuts against the damper plate 100, directly transmitting the action and reducing energy loss and error accumulation in intermediate links. The displacement of the adjusting mechanism is linearly related to the opening change of the damper plate 100. The operator can accurately predict the opening of the damper plate 100 based on the range of motion of the adjusting mechanism, facilitating stable and repeatable adjustment and promoting stable control of the combustion state. Furthermore, this design tightly links the adjusting mechanism and the damper plate 100, resulting in a compact overall structure that saves internal space in the gas valve 10 and allows for the rational layout of other components within a limited space. The elastic component 400 abuts against the damper plate 100, allowing the adjusting mechanism to adjust it. When the adjusting mechanism is adjusted to a position where no force is applied to the damper plate 100, the elastic component 400 can apply an upward force along the extension direction A to the damper plate 100, causing it to return to its highest position. This restores the opening degree of the air inlet 710 of the injector tube 700 to its maximum, ensuring complete combustion of the gas stove 1. In this embodiment, the elastic component 400 is composed of a spring 410 and a bearing platform 420. In other embodiments, other components that can achieve rebound, such as elastic sheets, can be used. This part belongs to the prior art in this technical field and will not be described in detail here.

[0068] like Figures 1-5 As shown, the elastic component 400 in this embodiment includes a spring 410 and a support platform 420. The support platform 420 is fixed in the gas valve 10, and the spring 410 and the support platform 420 abut against the damper plate 100 below along the extension direction A.

[0069] The structure of the spring 410 and the support platform 420 is relatively simple and easy to install, and the manufacturing cost is relatively low. The support platform 420 is fixed in the gas valve 10, providing stable support for the spring 410. The spring 410 directly abuts against the lower part of the damper plate 100 along the extension direction A. This simple structure reduces the number and complexity of parts, lowers the probability of failure, and improves the reliability and stability of the elastic component 400.

[0070] like Figures 1-5 As shown, in this embodiment, the damper plate 100 is bent vertically toward the damper opening adjustment mechanism 300 and extends to the valve stem 200.

[0071] By setting the damper plate 100 to be bent vertically toward the damper opening adjustment mechanism 300, the overall size of the adjustment mechanism can be effectively reduced, and the damper plate 100 can be effectively restricted even when the size of the adjustment mechanism is small.

[0072] like Figures 1-5 As shown, in this embodiment, the gas valve 10 further includes a gas nozzle 500, and the damper 100 includes a limiting structure 110. The limiting structure 110 abuts against the side 510 of the gas nozzle 500 to limit the relative movement of the damper 100 and the air inlet 710 in the non-extending direction A.

[0073] When the damper plate 100 and the valve stem 200 move synchronously along the extension direction A, the limiting structure 110 can effectively restrict the relative movement of the damper plate 100 relative to the air inlet 710 in the non-extension direction A.

[0074] like Figures 1-5 As shown, in this embodiment, in the gas valve 10 as described above, the damper opening adjustment mechanism 300 is located below the gas knob 600.

[0075] While adjusting the gas flow using the gas knob 600, users can naturally operate the damper opening adjustment mechanism 300 below with their hands, without significantly changing their hand position or posture. This improves the convenience and comfort of operation, allowing users to adjust the damper opening promptly and flexibly according to actual combustion conditions to achieve optimal combustion results. Furthermore, this layout makes full use of the space below the gas knob 600, resulting in a more compact overall structure for the gas valve 10 and effectively saving installation space.

[0076] like Figure 5 As shown, this utility model also provides a gas stove 1, which includes the gas valve 10 as described above. By using this gas valve 10, the size of the air inlet 710 of the injector tube 700 of the burner 70 can be conveniently adjusted.

[0077] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A gas valve comprising a valve stem, characterized in that, The gas valve also includes a damper plate, which is connected to the valve stem and moves synchronously with the valve stem along the extension direction of the valve stem to adjust the degree to which the damper plate blocks the air inlet of the ejector tube; When the valve stem moves downward along the extension direction, the degree to which the damper plate blocks the air inlet increases.

2. The gas valve as described in claim 1, characterized in that, The gas valve includes a damper opening adjustment mechanism. The damper plate is connected to the valve stem through the damper opening adjustment mechanism. The position of the damper opening adjustment mechanism relative to the valve stem along the extension direction is adjustable.

3. The gas valve as described in claim 2, characterized in that, The damper opening adjustment mechanism is threadedly connected to the valve stem, so that the position of the damper opening adjustment mechanism relative to the valve stem along the extension direction is adjustable.

4. The gas valve as described in claim 2, characterized in that, The damper opening adjustment mechanism is located near the valve stem.

5. The gas valve as described in claim 2, characterized in that, The bottom end of the damper opening adjustment mechanism abuts against the damper plate; The gas valve also includes a resilient component that applies an upward force along the extension direction to the damper plate.

6. The gas valve as described in claim 5, characterized in that, The elastic component includes a spring and a support platform, the support platform being fixed in the gas valve, and the spring and the support platform abutting against the damper plate below along the extension direction.

7. The gas valve as described in claim 5, characterized in that, The damper plate bends vertically toward the damper opening adjustment mechanism and extends to the valve stem.

8. The gas valve as described in claim 1, characterized in that, The gas valve further includes a gas nozzle, and the damper includes a limiting structure that abuts against the side of the gas nozzle to limit the relative movement of the damper and the air inlet in a direction other than the extending direction.

9. The gas valve according to any one of claims 2-7, characterized in that, The damper opening adjustment mechanism is located below the gas knob.

10. A gas stove, characterized in that, It includes the gas valve as described in any one of claims 1-9.

Images