Gas stove ignition structure and gas stove

Abstract

The utility model discloses a gas stove ignition structure and a gas stove, belongs to the technical field of stoves, and is designed for solving the problems that a fixed ignition needle is easy to break by collision or is burnt by flame for a long time and the like. The utility model discloses an ignition structure of a gas stove. The ignition structure comprises an ignition needle; a driving member; the cam is connected to the output end of the driving part through a connecting rod, the output end of the driving part can drive the cam to synchronously rotate when rotating, and the cam directly or indirectly abuts against the bottom end of the ignition needle; when ignition operation needs to be carried out, the driving piece enables the cam to rotate to a far repose angle position through the connecting rod, and ignition operation is achieved. After ignition operation is completed, the driving piece enables the cam to rotate to the near repose angle position through the connecting rod, and the ignition needle automatically falls back. According to the gas stove ignition structure and the gas stove disclosed by the utility model, the ignition needle is normally ignited when extending out, and falls down until being separated from the flame range after ignition, so that the problem that the ignition needle is grilled by flame for a long time is solved, and the ignition needle can be prevented from being broken by collision by reducing the height.

Description

Technical Field

[0001] The utility model relates to the technical field of stoves, in particular to a gas stove ignition structure and a gas stove. Background Art

[0002] A gas cooker is a device that uses gas combustion to generate high temperatures for cooking. The device used to ignite the gas is an ignition system, which mainly includes an ignition needle and a discharge gas passing through the ignition needle.

[0003] In existing gas cookers, the ignition pin is fixed around the fire cover and extends to a certain height. When the combustible gas sprays from the fire cover and reaches the ignition pin, the ignition pin generates an arc in the combustible gas, thereby igniting the combustible gas and continuing cooking.

[0004] The defects of the existing structure include: the ignition needle is fixed in position and extends to a certain height, which may collide with surrounding objects during manufacturing, transportation and use, causing damage to the ignition needle; due to design errors and processing errors, the extension height of the ignition needle may not match the air outlet on the fire cover, resulting in ignition difficulty; during the cooking process, the ignition needle is always within the range of high-temperature burning of the flame, and the ignition needle may crack after long-term use; the soup residue overflowing from the pot and the influence of wind may reduce the sensitivity of the ignition needle, resulting in ignition failure and affecting the service life of the ignition needle. Utility Model Content

[0005] The utility model aims to provide a gas stove ignition structure and a gas stove, which solves the problem that a fixed ignition needle is easily broken or burned by flames for a long time, and has a long service life.

[0006] To achieve this purpose, on the one hand, the present invention adopts the following technical solutions:

[0007] A gas stove ignition structure includes: an ignition needle; a driving member; and a cam, which is connected to the output end of the driving member through a connecting rod, and the output end of the driving member can drive the cam to rotate synchronously when it rotates, and the cam directly or indirectly abuts the bottom end of the ignition needle; when an ignition operation is required, the driving member rotates the cam to a far repose angle position through the connecting rod, and the ignition needle reaches the highest point of its stroke, thereby realizing the ignition operation; after the ignition operation is completed, the driving member rotates the cam to a near repose angle position through the connecting rod, and the ignition needle automatically falls back to the lowest point.

[0008] In one of the preferred embodiments, the gas stove ignition structure further includes a fixing seat, the ignition needle is connected to the fixing seat, the cam is located inside the fixing seat, and when the cam rotates, it can drive the fixing seat to move along the extension direction of the ignition needle.

[0009] In one preferred embodiment, the fixing seat includes two annular plates arranged opposite to each other, and a cam rotation groove for the cam to rotate is formed between the two annular plates.

[0010] In one of the preferred embodiments, the annular plate includes a sheet-shaped main plate and a side plate extending vertically along the edge of the main plate. A mounting hole is provided on the main plate of one of the two annular plates, and the connecting rod is passed through the mounting hole. The diameter of the mounting hole is greater than the stroke length of the ignition needle.

[0011] In one preferred embodiment, the tops of the two annular plates are fixedly connected.

[0012] In one of the preferred embodiments, a limiting groove is provided on the fixed connection portion of the tops of the two annular plates, and the ignition needle is fixedly connected in the limiting groove.

[0013] In one preferred embodiment, the fixing seat includes an annular band, the outer circumference of the cam abuts against the inner circumference of the annular band, and the bottom end of the ignition needle is fixedly connected to the outer circumference of the annular band.

[0014] In one preferred embodiment, the gas stove ignition structure further includes a guide groove, and the ignition needle is located in the guide groove and can move along the guide groove.

[0015] In one preferred embodiment, the position on the connecting rod connected to the cam is non-circular.

[0016] On the other hand, the present invention adopts the following technical solutions:

[0017] A gas stove comprises a burner head, and the gas stove further comprises the above-mentioned gas stove ignition structure, wherein the gas stove ignition structure is mounted on the burner head.

[0018] The gas stove ignition structure disclosed in the utility model includes an ignition needle, a drive member, and a cam, and the height of the ignition needle can be adjusted by rotating the cam. When ignition is required, the ignition needle is sent to the appropriate position by adjusting the rotation angle through the cam to ensure that the ignition needle is within the range of the combustible gas, thereby improving the ignition success rate and combustion stability, solving the problem of the ignition needle deviating from the combustible gas range due to assembly errors, and achieving precise ignition. After ignition is completed, the ignition needle falls until it is out of the flame range, solving the problem of the ignition needle being burned by the flame for a long time, resulting in a shortened service life. The overall design of the gas stove ignition structure is simple, easy to install and maintain, and reduces costs; during transportation and use, the ignition needle can automatically lower its height to effectively prevent it from being broken or malfunctioning due to collisions.

[0019] The gas stove disclosed in the present invention also includes the above-mentioned gas stove ignition structure. The ignition needle ignites when it reaches a high position. After the ignition is completed, the ignition needle falls back to a low position, thereby preventing the ignition needle from being roasted by the flame for a long time and extending the service life of the ignition needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of a gas stove provided by a specific embodiment of the utility model;

[0021] Figure 2 It is a cross-sectional view of a gas stove provided by a specific embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the ignition structure of a gas stove provided by a specific embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the ignition structure of a gas stove provided by a specific embodiment of the utility model when the ignition needle is at the highest point;

[0024] Figure 5 This is a schematic diagram of the ignition structure of a gas stove provided by a specific embodiment of the utility model when the ignition needle is in a low position;

[0025] Figure 6 This is an ignition flow chart of the gas stove ignition structure provided by the specific embodiment of the utility model.

[0026] In the picture:

[0027] 1. Ignition needle; 2. Driving part; 3. Cam; 4. Connecting rod; 5. Ring plate; 6. Guide groove; 7. Fire cover; 8. Burner head; 51. Cam rotation groove. DETAILED DESCRIPTION

[0028] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar improvements without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0032] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0034] This embodiment discloses a gas stove ignition structure and a gas stove including the gas stove ignition structure for cooking. Figures 1 to 5 As shown, the gas stove further includes a fire cover 7 and a burner head 8, and the gas stove ignition structure and the fire cover 7 are respectively mounted on the burner head 8.

[0035] The gas stove ignition structure includes an ignition needle 1, a driver 2, a cam 3, a connecting rod 4, and a control device. The control device is connected to the driver 2, and the cam 3 is connected to the output end of the driver 2 via the connecting rod 4. The driver 2 can be, but is not limited to, a motor that can drive the cam 3 to rotate.

[0036] The output end of driver 2 forms a secure connection with cam 3, which directly or indirectly abuts the bottom end of ignition pin 1. Rotation of the output end of driver 2 about its own axis drives cam 3 in synchronous circumferential rotation. During this process, ignition pin 1 acts as a follower, adjusting its height as cam 3 rotates, completing the ignition operation.

[0037] Specifically, when an ignition operation is required, the driving member 2 rotates the cam 3 to the far rest angle position through the connecting rod 4, and the ignition needle 1 reaches the highest point of its stroke, thereby realizing the ignition operation; after the ignition operation is completed, the driving member 2 rotates the cam 3 to the near rest angle position through the connecting rod 4, and the ignition needle 1 automatically falls back to the lowest point, thereby realizing protection for the ignition needle 1.

[0038] In this embodiment, the control device can be a centralized or distributed controller. For example, the controller can be a single single-chip microcomputer or a distributed plurality of single-chip microcomputers. The control program can be run in the single-chip microcomputer to control the drive element 2 to realize its function.

[0039] The gas stove ignition mechanism of this embodiment adjusts the height of the ignition needle 1 by rotating the cam 3. Ignition occurs when the ignition needle 1 reaches the upper position and then returns to the lower position. During transportation and use, the ignition needle 1 automatically lowers relative to the water tray, effectively preventing breakage or malfunction due to collisions.

[0040] When ignition is required, cam 3 adjusts the rotation angle to move ignition needle 1 to the appropriate position, ensuring it is within the combustible gas range. This improves ignition success rate and combustion stability, eliminates the problem of ignition needle 1 straying from the combustible gas range due to assembly errors, and enables precise ignition. After ignition, ignition needle 1 drops until it is out of the flame range, eliminating the problem of prolonged exposure to the flame, which shortens its service life. The overall design of this gas stove ignition mechanism is simple, facilitating installation and maintenance, and reducing costs.

[0041] To prevent relative rotation between the connecting rod 4 and the cam 3, in this embodiment, the portion of the connecting rod 4 where it connects to the cam 3 is non-circular, ensuring that the cam 3 rotates synchronously with the rotation of the connecting rod 4. The non-circular shape may be, but is not limited to, a triangular shape, a polygon with more than three sides, an ellipse, a semicircle, or the like.

[0042] On the basis of the above structure, the gas stove ignition structure further includes a fixing base. The ignition needle 1 is connected to the fixing base, and the cam 3 is located inside the fixing base. When the cam 3 rotates, it can drive the fixing base to move along the extension direction of the ignition needle 1.

[0043] The curvature of the outer contour line of cam 3 varies greatly. If the bottom surface of ignition needle 1 is directly abutted against the outer contour line of cam 3, the distance moved by ignition needle 1 may be relatively large during the rotation of cam 3, resulting in poor height adjustment accuracy; moreover, when cam 3 rotates, the contact point of the bottom surface of ignition needle 1 on the outer contour line of cam 3 changes all the time, making it difficult to fix the connection between ignition needle 1 and cam 3, and ignition needle 1 may detach from cam 3, causing structural failure.

[0044] After the mounting base is installed, ignition needle 1 and cam 3 contact the mounting base separately. The rotation of cam 3 causes the mounting base to move a distance less than the change in the outer contour of cam 3, resulting in smoother movement of ignition needle 1 and higher precision height adjustment. As cam 3 rotates, the mounting base always moves in the direction of extension of ignition needle 1, and the contact point between ignition needle 1 and the mounting base remains unchanged, easily forming a fixed connection structure and ensuring smoother movement of ignition needle 1.

[0045] The specific shape of the fixing base is not limited, as long as it can contact the ignition needle 1 and cam 3 respectively. In this embodiment, the first structure, the fixing base includes two annular plates 5 arranged in opposite directions, and a cam rotation groove 51 is formed between the two annular plates 5 to allow the cam 3 to rotate. The axis of the connecting rod 4 coincides with the axis of the annular plate 5. During the rotation of the cam 3, the apex of the cam 3 always contacts the inner wall surface of the annular plate 5. However, because the apex of the cam 3 varies in height, the height of the annular plate 5 also varies under the action of its own weight, thereby achieving the height adjustment of the ignition needle 1.

[0046] In this embodiment, the annular plate 5 comprises a sheet-like main plate and side plates extending perpendicularly from the edges of the main plate, giving the annular plate 5 a tray-like shape. The two annular plates 5 are positioned opposite each other, with the side plates of each annular plate 5 closer to the other annular plate 5 than to the main plate. The cam 3 is positioned between the two main plates, with the top end of the cam 3 abutting the inner wall of the side plates. Regardless of its rotation, the cam 3 will not separate from the annular plates 5, ensuring a secure overall structure.

[0047] A mounting hole is defined on the main plate of one of the two annular plates 5, through which the connecting rod 4 passes. Specifically, one end of the connecting rod 4 is located between the two annular plates 5, to which the cam 3 is connected. The other end of the connecting rod 4 is located outside the two annular plates 5, to which the driver 2 is connected. To avoid interfering with the movement of the annular plate 5, the diameter of the mounting hole is larger than the stroke length of the ignition needle 1.

[0048] To ensure synchronous movement of the two annular plates 5, in this embodiment, the tops of the two annular plates 5 are fixedly connected to form an integral structure. The specific connection method between the ignition pin 1 and the annular plates 5 is not limited. In this embodiment, the fixed connection between the tops of the two annular plates 5 is provided with a limiting groove, and the ignition pin 1 is fixedly connected within the limiting groove, providing a stable installation structure and preventing the ignition pin 1 from separating from the annular plates 5.

[0049] In the second structure, the fixing seat includes an annular band, the outer circumference of the cam 3 abuts against the inner circumference of the annular band, and the bottom end of the ignition needle 1 is fixedly connected to the outer circumference of the annular band.

[0050] In addition to the above structure, the gas stove ignition structure further includes a guide groove 6, in which the ignition needle 1 is located and can move along the guide groove 6. The guide groove 6 can guide and protect the ignition needle 1. Specifically, when the ignition needle 1 rises along the guide groove 6 to the highest point of its travel, it extends out of the guide groove 6 to achieve the ignition operation; after ignition is completed, the ignition needle 1 automatically falls back into the guide groove 6, thus protecting the ignition needle 1.

[0051] like Figure 2 、 Figures 4 to 6 As shown, the ignition working process of the gas stove ignition structure includes:

[0052] Set the motion parameters of the stove's ignition pin 1: When the stove is not powered on or without batteries installed, cam 3 is near the rest angle δ02, and the length of the ignition pin 1 extending from the panel is Lmin. The cam's rotation angle is δ, its angular velocity is w, its motion time is t, and its travel is h.

[0053] The stove is turned on;

[0054] The valve body recognizes the ignition signal and transmits the signal to the drive element 2 and the ignition needle 1 through the control device;

[0055] The driving member 2 drives the cam 3 to move to the far rest angle δ01. At this time, the length of the ignition needle 1 extending out of the panel is L=Lmin+h;

[0056] Ignition needle 1 starts ignition and determines whether ignition is successful within 4 seconds (i.e. 4s). If ignition is successful, driver 2 drives cam 3 to move to a near-rest angle δ02, and ignition needle 1 also descends to a length L = Lmin extending from the panel. At this time, driver 2 is powered off. If ignition fails, driver 2 drives cam 3 to move, causing cam 3 to rotate at an angle δ = wt, where L = Lmin + h - 0.5n (n is the number of ignitions).

[0057] Determine whether the number of ignition attempts, n, is ≤ 4. If the number of ignition attempts, n, is within four, ignition is attempted again if unsuccessful, and the height of ignition needle 1 is adjusted each time, using ignition needle 1 at different positions to improve the ignition success rate. If the number of ignition attempts exceeds four but still fails, and ignition needle 1 has attempted ignition within the ignition range but still fails, the drive element 2 is powered off, and an ignition fault is displayed on the stove panel display.

[0058] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. Gas stove ignition structure, characterized in that, include: Ignition needle (1); a driving member (2); and A cam (3) is connected to the output end of the driving member (2) via a connecting rod (4), and when the output end of the driving member (2) rotates, the cam (3) can be driven to rotate synchronously, and the cam (3) directly or indirectly abuts against the bottom end of the ignition needle (1); When an ignition operation is required, the driving member (2) causes the cam (3) to rotate to the far rest angle position via the connecting rod (4), and the ignition needle (1) reaches the highest point of its stroke, thereby realizing the ignition operation; after the ignition operation is completed, the driving member (2) causes the cam (3) to rotate to the near rest angle position via the connecting rod (4), and the ignition needle (1) automatically falls back to the lowest point.

2. The gas stove ignition structure according to claim 1, characterized in that: The gas stove ignition structure further comprises a fixing seat, the ignition needle (1) is connected to the fixing seat, the cam (3) is located inside the fixing seat, and when the cam (3) rotates, it can drive the fixing seat to move along the extension direction of the ignition needle (1).

3. The gas stove ignition structure according to claim 2, characterized in that: The fixing seat comprises two annular plates (5) arranged opposite to each other, and a cam rotation groove (51) for the cam (3) to rotate is formed between the two annular plates (5).

4. The gas stove ignition structure according to claim 3, characterized in that: The annular plate (5) comprises a sheet-like main plate and a side plate extending vertically along the edge of the main plate. A mounting through hole is provided on the main plate of one of the two annular plates (5). The connecting rod (4) is inserted into the mounting through hole. The diameter of the mounting through hole is greater than the stroke length of the ignition needle (1).

5. The gas stove ignition structure according to claim 3, characterized in that: The tops of the two annular plates (5) are fixedly connected.

6. The gas stove ignition structure according to claim 5, characterized in that: A limiting groove is provided at the fixed connection point on the top of the two annular plates (5), and the ignition needle (1) is fixedly connected in the limiting groove.

7. The gas stove ignition structure according to claim 2, characterized in that: The fixing seat comprises an annular band, the outer peripheral surface of the cam (3) abuts against the inner peripheral surface of the annular band, and the bottom end of the ignition needle (1) is fixedly connected to the outer peripheral surface of the annular band.

8. The gas stove ignition structure according to any one of claims 1 to 7, characterized in that: The gas stove ignition structure further comprises a guide groove (6), and the ignition needle (1) is located in the guide groove (6) and can move along the guide groove (6).

9. The gas stove ignition structure according to any one of claims 1 to 7, characterized in that: The position on the connecting rod (4) where it is connected to the cam (3) is non-circular.

10. A gas stove comprising a burner (8), characterized in that: The gas stove further comprises a gas stove ignition structure according to any one of claims 1 to 9, and the gas stove ignition structure is mounted on the burner (8).

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