Gas flameout protection device

Abstract

The utility model discloses a fuel gas flameout protection device, which relates to the technical field of fuel gas flameout protection, comprises a cooking bench, and a burner is fixedly mounted at the upper end of the cooking bench, and is characterized in that one side of the upper end of the cooking bench is fixedly connected with a mounting plate, the upper end of the mounting plate is fixedly connected with an ultraviolet photosensitive tube, and the upper end of the ultraviolet photosensitive tube is fixedly connected with a power supply. And a cleaning mechanism is installed outside the ultraviolet photosensitive tube, an electromagnetic valve is installed at the rear end of the cooking bench, the rear end of the electromagnetic valve is fixedly connected with a communicated fuel gas connector, and a fuel gas pipe is fixedly installed at the lower end of the combustor. Through cooperation of the sleeve, the sleeve rod, the cleaning sleeve, the limiting plate and the spring, the exterior of the ultraviolet photosensitive tube can be cleaned through the cleaning sleeve capable of moving downwards, dust or clear water is prevented from being attached to the cleaning sleeve, the ultraviolet photosensitive tube can normally protect the device, judgment of the ultraviolet tube on a combustor cannot be affected, and the service life of the ultraviolet photosensitive tube is prolonged. And the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas flameout protection, and particularly relates to a gas flameout protection device. Background Art

[0002] Gas stoves, also known as gas burners, stove tops, cooking ranges, and cooking appliances, are widely known to the public. They refer to kitchen appliances that directly heat with gaseous fuels such as liquefied petroleum gas (liquid), artificial gas, and natural gas. In terms of gas sources, gas stoves are mainly divided into liquefied gas stoves, gas stoves, and natural gas stoves; in terms of burner holes, they are divided into single-burner, double-burner, and multi-burner stoves.

[0003] Gas, including natural gas, coal gas, and liquefied petroleum gas as fuels, has penetrated into thousands of households. Especially in large and medium-sized cities, pipeline gas has been installed in every household. The use of gas stoves has greatly reduced the degree of urban pollution and brought great convenience and efficiency to people. However, at the same time, it has also caused many disasters to society. The harm caused by gas leakage is increasing day by day. The losses caused by disasters caused by gas to people's lives and property are a problem that cannot be underestimated. Compared with fires caused by ordinary coal combustion, it is more sudden and less easily detectable, making it more dangerous. Especially when gas is still leaking during a fire, it is an event that involves a wide range.

[0004] The existing flameout protection devices are mainly divided into thermocouple type flameout protection and photoelectric type flameout protection, which are used to automatically close the gas source, prevent gas leakage of gas stoves, and facilitate the normal use of gas stoves.

[0005] In view of the existing technology, there are the following problems:

[0006] During the actual use of the existing device, the outside of the photosensitive tube in the existing device does not have a cleaning structure, resulting in easy attachment of clear water to the outside of the photosensitive tube during use, weakening the ultraviolet irradiation, affecting the judgment of the ultraviolet tube on the stove, and reducing the practicality of the device. Summary of the Utility Model

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A gas flameout protection device includes a cooking range, and a burner is fixedly installed at the upper end of the cooking range. It is characterized in that: a mounting plate is fixedly connected to one side of the upper end of the cooking range, an ultraviolet photosensitive tube is fixedly connected to the upper end of the mounting plate, a cleaning mechanism is installed outside the ultraviolet photosensitive tube, an electromagnetic valve is installed at the rear end of the cooking range, a gas connector connected in communication is fixedly connected to the rear end of the electromagnetic valve, a gas pipe is fixedly installed at the lower end of the burner, a flow sensor is fixedly installed outside the upper end of the gas pipe, and a connecting pipe connected in communication is fixedly sleeved at the lower end of the gas pipe.

[0009] Preferably, the cleaning mechanism includes a sleeve, the lower ends of the sleeve are symmetrically and fixedly connected to the upper ends of the four corners of the mounting plate, a sleeve rod is slidably installed inside the sleeve, a cleaning sleeve is fixedly connected to the top of the sleeve rod, a limiting plate is installed at the lower end of the sleeve rod, and a spring is installed at the bottom end inside the sleeve.

[0010] Preferably, a cleaning cotton cloth is provided inside the cleaning sleeve.

[0011] Preferably, the outside of the limiting plate is slidably connected to the inside of the sleeve.

[0012] Preferably, one end of the spring is fixedly connected to the bottom of the inner cavity of the sleeve, and the other end is fixedly connected to the lower end of the limiting plate.

[0013] Preferably, the front end of the electromagnetic valve is fixedly connected to the rear end of the connecting pipe and is in mutual communication.

[0014] Preferably, the outside of the ultraviolet photosensitive tube is sleeved with the inside of the cleaning sleeve, and the outer wall of the ultraviolet photosensitive tube is in contact with the cleaning cotton sleeve.

[0015] Preferably, the outside of the ultraviolet photosensitive tube is sleeved with the inside of the cleaning sleeve, and the outer wall of the ultraviolet photosensitive tube is in contact with the cleaning cotton sleeve.

[0016] Due to the adoption of the above technical solutions, the technical progress obtained by the present utility model compared with the prior art is as follows:

[0017] 1. The present utility model provides a gas flameout protection device. Through the arrangement of the ultraviolet photosensitive tube, the burner can be monitored to ensure the safe use of the device; through the arrangement of the flow sensor, after the burner accidentally goes out, it can detect whether the gas inside the gas pipe is still flowing and transmit it to the external controller, so that the electromagnetic valve can be automatically closed to prevent gas leakage, with a fast reaction speed, avoid the occurrence of fire, and improve the safety of use.

[0018] 2. The present utility model provides a gas flameout protection device. Through the cleaning mechanism, with the cooperation of the sleeve, the sleeve rod, the cleaning sleeve, the limiting plate and the spring, the outside of the ultraviolet photosensitive tube can be cleaned by using the downwardly movable cleaning sleeve, avoiding dust or water from adhering to it, enabling the purple tube photosensitive tube to normally protect the device, thus not affecting the problem of the ultraviolet tube's judgment of the burner, and further improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the gas flameout protection device of the present utility model;

[0020] Figure 2Schematic diagram of the detailed structure of the gas flameout protection device of the present utility model;

[0021] Figure 3 Schematic diagram of the partial structure of the gas flameout protection device of the present utility model;

[0022] Figure 4 Schematic diagram of the structure of the cleaning mechanism of the present utility model;

[0023] Figure 5 Schematic diagram of the sectional view of the cleaning mechanism of the present utility model.

[0024] In the figure: 1, cooking range; 2, burner; 3, mounting plate; 4, ultraviolet photosensitive tube; 5, cleaning mechanism; 6, electromagnetic valve; 7, gas connector; 8, gas pipe; 9, flow sensor; 10, connecting pipe; 51, sleeve; 52, sleeve rod; 53, cleaning sleeve; 54, limiting plate; 55, spring. Detailed implementation manners

[0025] The following further describes the present utility model in detail with reference to embodiments:

[0026] As Figures 1-5 shown, the present utility model provides a gas flameout protection device, including a cooking range 1, on which a burner 2 is fixedly installed at the upper end, a mounting plate 3 is fixedly connected to one side of the upper end of the cooking range 1, an ultraviolet photosensitive tube 4 is fixedly connected to the upper end of the mounting plate 3, a cleaning mechanism 5 is installed outside the ultraviolet photosensitive tube 4, an electromagnetic valve 6 is installed at the rear end of the cooking range 1, a gas connector 7 that is connected and communicated is fixedly connected to the rear end of the electromagnetic valve 6, a gas pipe 8 is fixedly installed at the lower end of the burner 2, a flow sensor 9 is fixedly installed outside the upper end of the gas pipe 8, and a connecting pipe 10 that is connected and communicated is fixedly sleeved at the lower end of the gas pipe 8.

[0027] The front end of the electromagnetic valve 6 is fixedly connected to the rear end of the connecting pipe 10 and is in mutual communication.

[0028] The outside of the ultraviolet photosensitive tube 4 is mutually sleeved with the inside of the cleaning sleeve 53, and the outer wall of the ultraviolet photosensitive tube 4 is in contact with the cleaning cotton sleeve.

[0029] The ultraviolet photosensitive tube 4, the electromagnetic valve 6, and the flow sensor 9 are electrically connected to an external controller.

[0030] The ultraviolet photosensitive tube 4 facilitates the ultraviolet monitoring of the burner 2, the provided electromagnetic valve 6 facilitates the opening or closing of the gas pipe 8, and the flow sensor 9 facilitates detecting whether the gas inside the gas pipe 8 is flowing after the burner 2 goes out.

[0031] As Figures 4-5As shown, the cleaning mechanism 5 includes a sleeve 51. The lower end of the sleeve 51 is symmetrically and fixedly connected to the upper ends of the four corners of the mounting plate 3. A sleeve rod 52 is slidably installed inside the sleeve 51. The top of the sleeve rod 52 is fixedly connected to a cleaning sleeve 53. A limiting plate 54 is installed at the lower end of the sleeve rod 52. A spring 55 is installed at the bottom end inside the sleeve 51.

[0032] A cleaning cotton cloth is provided inside the cleaning sleeve 53.

[0033] The outside of the limiting plate 54 is slidably connected to the inside of the sleeve 51.

[0034] One end of the spring 55 is fixedly connected to the bottom of the inner cavity of the sleeve 51, and the other end is fixedly connected to the lower end of the limiting plate 54.

[0035] The cleaning sleeve 53 can move downward along the ultraviolet photosensitive tube 4, so as to facilitate the cleaning of the outside of the ultraviolet photosensitive tube 4.

[0036] Next, the working principle of the gas flameout protection device will be specifically described.

[0037] As Figures 1-5 shown, when the gas flameout protection device is in use, the receiving view angle of the ultraviolet photosensitive tube 4 is set to be consistent with that of the burner 2, so as to facilitate the monitoring of the water heater by using the ultraviolet photosensitive tube 4. When the burner 2 is accidentally extinguished, the ultraviolet photosensitive tube 4 cannot detect ultraviolet rays, and then it will transmit the monitored signal to an external controller. At this time, the gas is still leaking. At this time, the flow sensor 9 can detect that the hot gas in the gas pipe 8 is still flowing, and it will also transmit a signal to the external controller at this time. The external controller makes a judgment after receiving the signal, and then closes the electromagnetic valve 6 after the judgment is completed, so as to block the hot gas from being transported from the gas joint 7 to the hot gas pipe, and thus the protection effect can be achieved; at the same time, by pressing down the cleaning sleeve 53, the cleaning sleeve 53 is forced to move downward along the outside of the ultraviolet sensor. However, when the cleaning sleeve 53 moves downward, it will push the sleeve rod 52 to move, so that the sleeve rod 52 drives the limiting plate 54 to move synchronously inside the sleeve 51, and then the spring 55 will be compressed, so as to shorten the distance between the cleaning sleeve 53 and the mounting plate 3, and thus adsorb and clean the clear water or dust attached to the surface of the cleaning sleeve 53 along the outside of the ultraviolet photosensitive tube 4. Then, the cleaning sleeve 53 can be released, so that the pressing force on the cleaning sleeve 53 disappears, and at the same time, the compressed spring 55 will produce a rebounding effect, which can then push up the limiting plate 54 and the sleeve rod 52, so that the sleeve rod 52 drives the cleaning sleeve 53 to reset, and thus the cleaning effect is completed, enabling the ultraviolet photosensitive tube 4 to normally protect the burner 2 and continuously monitor.

[0038] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made thereto, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements that do not depart from the spirit and idea of the present utility model are within the protection scope of the present utility model.

Claims

1. A gas flameout protection device, comprising a stove (1), a burner (2) being fixedly mounted on the upper end of the stove (1), characterized in that: A mounting plate (3) is fixedly connected to one side of the upper end of the stove (1), an ultraviolet light-sensitive tube (4) is fixedly connected to the upper end of the mounting plate (3), a cleaning mechanism (5) is installed outside the ultraviolet light-sensitive tube (4), an electromagnetic valve (6) is installed at the rear end of the stove (1), a connected gas connector (7) is fixedly connected to the rear end of the electromagnetic valve (6), a gas pipe (8) is fixedly installed at the lower end of the burner (2), a flow sensor (9) is fixedly installed outside the upper end of the gas pipe (8), and a connected connecting pipe (10) is fixedly sleeved at the lower end of the gas pipe (8).

2. A gas flameout protection device according to claim 1, characterized in that: The cleaning mechanism (5) comprises a sleeve (51), the lower end of the sleeve (51) is symmetrically fixedly connected to the four corners of the upper end of the mounting plate (3), a sleeve rod (52) is slidably mounted inside the sleeve (51), a cleaning sleeve (53) is fixedly connected to the top of the sleeve rod (52), a limiting plate (54) is mounted on the lower end of the sleeve rod (52), and a spring (55) is mounted on the bottom end of the sleeve (51).

3. A gas flameout protection device according to claim 2, characterized in that: A cleaning cotton cloth is arranged on the inner side of the cleaning sleeve (53).

4. A gas flameout protection device according to claim 3, characterized in that: The outside of the limiting plate (54) is slidably connected to the inside of the sleeve (51).

5. A gas flameout protection device according to claim 4, characterized in that: One end of the spring (55) is fixedly connected to the bottom of the inner cavity of the sleeve (51), and the other end is fixedly connected to the lower end of the limiting plate (54).

6. A gas flameout protection device according to claim 1, characterized in that: The front end of the electromagnetic valve (6) is fixedly connected to the rear end of the connecting pipe (10), and the two are in communication with each other.

7. A gas flameout protection device according to claim 1, characterized in that: The exterior of the ultraviolet light-sensitive tube (4) and the interior of the cleaning sleeve (53) are sleeved together, and the outer wall of the ultraviolet light-sensitive tube (4) is in contact with the cleaning cotton sleeve.

8. A gas flameout protection device according to claim 1, characterized in that: The ultraviolet light sensitive tube (4), the electromagnetic valve (6), and the flow sensor (9) are electrically connected to the external controller.

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