Dry-burning-resistant gas water heater

Abstract

The utility model relates to the technical field of water heaters, and discloses an anti-dry-burning gas water heater which comprises a shell, a combustion chamber is fixedly connected to the interior of the shell, a heating pipe is arranged in the combustion chamber, a gas pipe is fixedly connected to the interior of the shell, a combustion table is fixedly connected to the outer wall of the gas pipe, and the combustion table is fixedly connected to the outer wall of the shell. The lower surface of the combustion table is fixedly connected to the inner wall of the shell, the upper surface of the combustion table is arranged in the combustion chamber, a safety ring is arranged on the outer wall of the heating pipe, a safety rod is fixedly connected to the outer wall of the safety ring, and a heat insulation box is fixedly connected to the outer wall of the gas pipe. According to the gas stove, through the combustion chamber, the heating pipe, the gas pipe, the combustion table, the safety ring, the safety rod, the heat insulation box, the spring and the baffle, gas can be automatically cut off no matter whether the water pipe is overheated or the temperature of the interior of the shell rises, further protection can be provided, and accidents are reduced.

Description

Technical Field

[0001] This utility model relates to the field of water heater technology, and in particular to a gas water heater that prevents dry burning. Background Technology

[0002] A water heater is a device that heats water using various energy sources to meet people's needs for hot water in daily life. Common types of water heaters include gas water heaters, electric water heaters, solar water heaters, and air source heat pump water heaters.

[0003] Gas water heaters use gas as an energy source, generating heat by burning the gas to heat water. Their advantages include instant hot water supply, no need to wait for water to accumulate in the tank, and convenient use. They also have high thermal efficiency, making them relatively energy-saving.

[0004] Gas water heaters typically rely on temperature sensors. Once the temperature sensor detects that the temperature exceeds the normal operating range and reaches or approaches the dangerous dry-burning temperature threshold, it will immediately transmit a signal to the control system to achieve the anti-dry-burning effect. Although anti-dry-burning gas water heaters have anti-dry-burning mechanisms such as temperature sensors, single protection may have the risk of failure. In addition to the dry-burning problem, gas water heaters may also face other malfunctions that lead to high temperatures and even fires. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an anti-dry-burning gas water heater, which aims to improve the problem of potential failure risks associated with the single protection of gas water heaters.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A gas water heater with anti-dry-burning features a casing, a combustion chamber fixedly connected inside the casing, a heating element inside the combustion chamber, a gas pipe fixedly connected inside the casing, a combustion platform fixedly connected to the outer wall of the gas pipe, the lower surface of the combustion platform fixedly connected to the inner wall of the casing, and the upper surface of the combustion platform located inside the combustion chamber. A safety ring is provided on the outer wall of the heating element, a safety rod is fixedly connected to the outer wall of the safety ring, a heat insulation box is fixedly connected to the outer wall of the gas pipe, the outer wall of the safety rod is slidably connected to the inside of the heat insulation box, a spring is fixedly connected to the inside of the heat insulation box, a baffle is fixedly connected to the outer wall of the spring, and the outer wall of the baffle is fixedly connected to the bottom end of the safety rod. An exhaust pipe is provided inside the combustion chamber, and the outer wall of the exhaust pipe is fixedly connected to the inside of the casing. An inlet / outlet water assembly is provided at one end of the combustion chamber for introducing and discharging water.

[0008] Preferably, the water inlet / outlet assembly includes a water outlet, the outer wall of which is fixedly connected to one end of the heating tube, and the other end of the heating tube is fixedly connected to a water inlet. The outer walls of both the water outlet and the water inlet are fixedly connected to the inside of the outer casing.

[0009] Preferably, a protective box is fixedly connected inside the outer shell, and a partition is provided on the outer wall of the protective box.

[0010] Preferably, the protective box has a connecting pipe inside, and the outer wall of the connecting pipe is disposed inside the heating pipe.

[0011] Preferably, the protective box is rotatably connected to a rotating shaft, and the outer wall of the rotating shaft is provided with a shaft locking device, the upper surface of which is fixedly connected to the inside of the protective box.

[0012] Preferably, a bevel gear is fixedly connected to the top end of the first rotating shaft, and a bevel gear is meshed with the tooth end of the first bevel gear.

[0013] Preferably, a rotating shaft is fixedly connected inside the bevel gear two, and a connecting rod is fixedly connected to the outer wall of the rotating shaft two.

[0014] Preferably, a slider is rotatably connected to the outer wall of the connecting rod, a clamping plate is slidably connected to the outer wall of the slider, the lower surface of the clamping plate is slidably connected to the inside of the protective box, a thermometer is provided on the outer wall of the clamping plate, and the outer wall of the thermometer is provided on the outer wall of the connecting pipe.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, through the combustion chamber, heating tube, gas pipe, combustion platform, safety ring, safety rod, heat insulation box, spring and baffle, the gas can be automatically cut off whether the water pipe is overheated or the internal temperature of the outer shell is increased, which can provide further protection and reduce the occurrence of accidents.

[0017] 2. In this utility model, through the cooperation between the protective box, partition, connecting pipe, rotating shaft one, shaft locking device, bevel gear one, bevel gear two, rotating shaft two, connecting rod, slider and clamping plate, it is possible to easily replace the thermometer and disassemble and repair it, and different sizes of thermometers can be used, making it more flexible in use. Attached Figure Description

[0018] Figure 1 This is a perspective view of a gas water heater designed to prevent dry burning according to this utility model;

[0019] Figure 2 This is a cross-sectional view of the internal structure of the outer shell of an anti-dry-burning gas water heater proposed in this utility model;

[0020] Figure 3 This is a cross-sectional view of the internal structure of the heat insulation box of an anti-dry-burning gas water heater proposed in this utility model;

[0021] Figure 4 This is a partial structural diagram of the partition of an anti-dry-burning gas water heater proposed in this utility model;

[0022] Figure 5 This is a cross-sectional view of the internal structure of the protective box for an anti-dry-burning gas water heater proposed in this utility model;

[0023] Figure 6 This is a partial structural diagram of the rotating shaft of an anti-dry-burning gas water heater proposed in this utility model.

[0024] Legend:

[0025] 1. Outer shell; 2. Combustion chamber; 3. Heating tube; 4. Gas pipe; 5. Combustion platform; 6. Safety ring; 7. Safety rod; 8. Heat insulation box; 9. Spring; 10. Baffle; 11. Exhaust pipe; 12. Water outlet; 13. Water inlet; 14. Protective box; 15. Partition; 16. Connecting pipe; 17. Shaft one; 18. Shaft locking device; 19. Bevel gear one; 20. Bevel gear two; 21. Shaft two; 22. Connecting rod; 23. Slider; 24. Clamping plate; 25. Thermometer. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1-3This utility model provides an embodiment of an anti-dry-burning gas water heater, comprising a shell 1, a combustion chamber 2 fixedly connected inside the shell 1, a heating tube 3 disposed inside the combustion chamber 2, a gas pipe 4 fixedly connected inside the shell 1, a combustion platform 5 fixedly connected to the outer wall of the gas pipe 4, the lower surface of the combustion platform 5 fixedly connected to the inner wall of the shell 1, and the upper surface of the combustion platform 5 disposed inside the combustion chamber 2, a safety ring 6 disposed on the outer wall of the heating tube 3, a safety rod 7 fixedly connected to the outer wall of the safety ring 6, a heat insulation box 8 fixedly connected to the outer wall of the gas pipe 4, the outer wall of the safety rod 7 slidably connected to the inside of the heat insulation box 8, a spring 9 fixedly connected to the inside of the heat insulation box 8, a baffle 10 fixedly connected to the outer wall of the spring 9, the outer wall of the baffle 10 fixedly connected to the bottom end of the safety rod 7, an exhaust pipe 11 disposed inside the combustion chamber 2, the outer wall of the exhaust pipe 11 fixedly connected to the inside of the shell 1, and a water inlet / outlet assembly disposed at one end of the combustion chamber 2 for introducing and discharging water.

[0028] Specifically, combustion chamber 2 can isolate the flame, gas pipe 4 is used to transport gas, ignition is carried out through combustion platform 5 and oxygen is introduced to assist combustion, thereby heating heating pipe 3. Safety ring 6 and safety rod 7 melt in high temperature environment. Regardless of whether safety ring 6 or safety rod 7 melts, spring 9 will rebound and insert baffle 10 into the gas pipe 4, thereby cutting off the gas supply. Even when the elastic force of spring 9 decreases, baffle 10 will fall by its own weight.

[0029] Reference Figure 1 and Figure 2 The water inlet and outlet assembly includes an outlet 12, the outer wall of which is fixedly connected to one end of the heating tube 3, and the other end of the heating tube 3 is fixedly connected to an inlet 13. The outer walls of both the outlet 12 and the inlet 13 are fixedly connected to the inside of the outer casing 1.

[0030] Specifically, cold water enters through inlet 13 and is discharged through outlet 12 after being heated.

[0031] Reference Figure 2 and Figure 4 The outer casing 1 is fixedly connected to a protective box 14, and the outer wall of the protective box 14 is provided with a partition 15.

[0032] Specifically, the protective box 14 protects the thermometer 25 and can separate the thermometer 25 from the inside of the outer casing 1. When maintenance is required, the partition 15 can be removed from the side without opening the entire outer casing 1.

[0033] Reference Figure 2 and Figure 5 The protective box 14 has a connecting pipe 16 inside, and the outer wall of the connecting pipe 16 is located inside the heating pipe 3.

[0034] Specifically, the connecting pipe 16 is used to connect the heating pipe 3, thereby monitoring the water temperature inside the heating pipe 3.

[0035] Reference Figure 5 and Figure 6 The protective box 14 is rotatably connected to a rotating shaft 17. The outer wall of the rotating shaft 17 is provided with a shaft locking device 18. The upper surface of the shaft locking device 18 is fixedly connected to the inside of the protective box 14.

[0036] Specifically, the protective box 14 supports the rotation of the shaft 17, and the shaft locking device 18 tightens the bolts to shrink the sleeve, thereby clamping the shaft and increasing friction to prevent the shaft from moving.

[0037] Reference Figure 5 and Figure 6 A bevel gear 19 is fixedly connected to the top of the rotating shaft 17, and a bevel gear 20 is meshed with the tooth end of the bevel gear 19. A rotating shaft 21 is fixedly connected inside the bevel gear 20, and a connecting rod 22 is fixedly connected to the outer wall of the rotating shaft 21. A slider 23 is rotatably connected to the outer wall of the connecting rod 22, and a clamping plate 24 is slidably connected to the outer wall of the slider 23. The lower surface of the clamping plate 24 is slidably connected to the inside of the protective box 14. A thermometer 25 is installed on the outer wall of the clamping plate 24, and the outer wall of the thermometer 25 is installed on the outer wall of the connecting tube 16.

[0038] Specifically, the rotating shaft 17 drives the bevel gear 19 to rotate, and the bevel gear 19 meshes with the bevel gear 20 to rotate. The bevel gear 20 drives the connecting rod 22 to rotate through the rotating shaft 21. Both ends of the connecting rod 22 are rotatably connected to the slider 23. When the connecting rod 22 rotates, the sliders 23 on both sides slide in opposite directions. The sliders 23 slide inside the clamping plate 24. The sliders 23 drive the clamping plates 24 on both sides to slide in opposite directions, which can fix or loosen the thermometer 25 and can accommodate thermometers 25 of different sizes, making it convenient to use different thermometers 25. The thermometer 25 is connected to the heating tube 3 through the connecting pipe 16 for temperature monitoring.

[0039] Working principle: When using this gas water heater, gas is input through gas pipe 4, and the combustion plate 5 ignites the gas, which burns inside the combustion chamber 2. Water enters the heating tube 3 from the inlet 13. The combustion heats the water inside the heating tube 3, and then it is discharged from the outlet 12. When the water flow stops, but the flame continues to burn, the temperature of the heating tube 3 continues to rise. When the temperature of the heating tube 3 is too high, the safety ring 6 melts, and then the spring 9 rebounds. Under the weight of the baffle 10, the baffle 10 begins to fall. By directly blocking the gas pipe 4, the gas supply is cut off. Similarly, when the combustion chamber 2 leaks or the internal temperature of the outer casing 1 rises due to other reasons, the safety rod 7 will melt directly, which can also cause the baffle 10 to cut off the gas supply. When it is necessary to replace or repair the thermometer 25, the first shaft 17 is rotated to drive the first bevel gear 19 to rotate. The first bevel gear 19 drives the second shaft 21 to rotate through the second bevel gear 20. The second shaft 21 drives the connecting rod 22 to rotate. When the connecting rod 22 rotates, it pulls the slider 23 to slide. At the same time, the slider 23 pushes the clamping plate 24 to slide, which can roll or release the thermometer 25, making it easy to remove or install the thermometer 25. This gas water heater can not only automatically cut off the gas supply when the temperature is too high, but also facilitate the disassembly and assembly of the thermometer 25, thereby improving the efficiency of maintenance.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas water heater with anti-dry-burning function, comprising a casing (1), characterized in that: A combustion chamber (2) is fixedly connected inside the outer shell (1). A heating tube (3) is installed inside the combustion chamber (2). A gas pipe (4) is fixedly connected inside the outer shell (1). A combustion platform (5) is fixedly connected to the outer wall of the gas pipe (4). The lower surface of the combustion platform (5) is fixedly connected to the inner wall of the outer shell (1). The upper surface of the combustion platform (5) is located inside the combustion chamber (2). A safety ring (6) is installed on the outer wall of the heating tube (3). A safety rod (7) is fixedly connected to the outer wall of the safety ring (6). The outer surface of the gas pipe (4) is... A heat insulation box (8) is fixedly connected to the wall. The outer wall of the safety rod (7) is slidably connected to the inside of the heat insulation box (8). A spring (9) is fixedly connected to the inside of the heat insulation box (8). A baffle (10) is fixedly connected to the outer wall of the spring (9). The outer wall of the baffle (10) is fixedly connected to the bottom of the safety rod (7). An exhaust pipe (11) is provided inside the combustion chamber (2). The outer wall of the exhaust pipe (11) is fixedly connected to the inside of the outer shell (1). A water inlet and outlet assembly is provided at one end of the combustion chamber (2). The water inlet and outlet assembly is used to introduce and discharge water.

2. The anti-dry-burning gas water heater according to claim 1, characterized in that: The water inlet and outlet assembly includes an outlet (12), the outer wall of which is fixedly connected to one end of a heating tube (3), and the other end of the heating tube (3) is fixedly connected to an inlet (13). The outer walls of both the outlet (12) and the inlet (13) are fixedly connected to the inside of the outer shell (1).

3. The anti-dry-burning gas water heater according to claim 1, characterized in that: A protective box (14) is fixedly connected inside the outer shell (1), and a partition (15) is provided on the outer wall of the protective box (14).

4. A gas water heater with anti-dry-burning feature according to claim 3, characterized in that: The protective box (14) is provided with a connecting pipe (16) inside, and the outer wall of the connecting pipe (16) is provided inside the heating pipe (3).

5. A gas water heater with anti-dry-burning feature according to claim 3, characterized in that: The protective box (14) is rotatably connected to a rotating shaft (17), and a shaft locking device (18) is provided on the outer wall of the rotating shaft (17). The upper surface of the shaft locking device (18) is fixedly connected to the inside of the protective box (14).

6. A gas water heater with anti-dry-burning feature according to claim 5, characterized in that: The top end of the rotating shaft (17) is fixedly connected to a bevel gear (19), and the tooth end of the bevel gear (19) is meshed with a bevel gear (20).

7. A gas water heater with anti-dry-burning feature according to claim 6, characterized in that: The inner part of the bevel gear 2 (20) is fixedly connected to the shaft 2 (21), and the outer wall of the shaft 2 (21) is fixedly connected to the connecting rod (22).

8. A gas water heater with anti-dry-burning feature according to claim 7, characterized in that: The outer wall of the connecting rod (22) is rotatably connected to a slider (23), the outer wall of the slider (23) is slidably connected to a clamping plate (24), the lower surface of the clamping plate (24) is slidably connected to the inside of the protective box (14), a thermometer (25) is provided on the outer wall of the clamping plate (24), and the outer wall of the thermometer (25) is provided on the outer wall of the connecting pipe (16).

Images