Three-gear water heater capable of manually resetting overheating protection and automatically releasing pressure

Abstract

The utility model discloses a three-gear water heater capable of manually resetting overheating protection and automatically releasing pressure, and relates to the technical field of water heating in washrooms. The device comprises a welding assembly, a toggle switch, a pressure release valve, a circuit board and a three-gear switch, a heating pipe and a temperature sensor are arranged in the welding assembly. According to the utility model, hot water supply with three temperatures can be easily and conveniently provided for passengers, and meanwhile, an overheating protection function and an overpressure self-decompression function are also realized.

Description

Technical Field

[0001] The utility model relates to the technical field of water heating in washrooms, and more specifically to a three-speed water heater capable of manually resetting overheat protection and automatically releasing pressure. Background Art

[0002] With the development of the air transport industry, providing passengers with better services has become the focus of airlines; my country's airspace spans a large area, and flights without water heaters or with single-temperature water heaters will become increasingly unsuitable for current industry needs.

[0003] Traditional water heaters are lacking in overheating protection devices and overpressure self-relieving devices, which results in serious safety hazards when passengers use hot water.

[0004] Therefore, it is necessary to develop a safe, reliable and comfortable water heater. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the above-mentioned background technology and to provide a three-speed water heater with manual reset overheat protection and automatic pressure relief.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a three-speed water heater with manually reset overheat protection and automatic pressure relief, characterized in that it includes a welding assembly, a manual reset thermostat and a toggle switch arranged on the upper part of the welding assembly, a pressure relief valve arranged in the middle part of the welding assembly, and a circuit board and a three-speed switch arranged at the lower part of the welding assembly;

[0007] A heating tube and a temperature sensor are arranged in the welding assembly.

[0008] In the above technical solution, an indicator light and a plug are arranged on the upper part of the welding assembly.

[0009] In the above technical solution, the wall thickness of the welding assembly is 1 mm.

[0010] In the above technical solution, the manual reset thermostat is fixed to the upper part of the welding assembly by a self-locking nut.

[0011] In the above technical solution, the heating tube and the temperature sensor are installed at the lower part of the welding assembly through threads.

[0012] In the above technical solution, the pressure relief valve is installed in the middle of the welding assembly through threads.

[0013] In the above technical solution, the plug leads out the wire through the upper part of the welding assembly.

[0014] In the above technical solution, the upper end cover is installed on the upper part of the welding assembly through a butterfly nut; and the lower end cover is installed on the lower part of the welding assembly through a hexagonal nut.

[0015] In the above technical solution, the circuit board is installed in the lower end cover.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1) The utility model can easily and conveniently provide passengers with hot water supply of three temperatures, and also has overheating protection function and overpressure self-decompression function.

[0018] 2) The utility model meets the airworthiness requirements, has a simple and reliable structure, strong practicality, complete functions, and is easy to use and promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a bottom schematic diagram of the utility model.

[0021] Among them, 1-welding assembly, 11-heating tube, 12-temperature sensor, 13-indicator light, 14-plug, 2-manual reset thermostat, 21-self-locking nut, 3-toggle switch, 4-pressure relief valve, 5-circuit board, 6-three-speed switch, 7-upper end cover, 71-butterfly nut, 8-lower end cover, 81-hexagonal nut. DETAILED DESCRIPTION

[0022] The following is a detailed description of the implementation of the utility model in conjunction with the accompanying drawings, but they do not constitute a limitation of the utility model and are only used as examples. At the same time, the advantages of the utility model will become clearer and easier to understand through the description.

[0023] Referring to the attached drawings, it can be seen that: a three-speed water heater with manual reset overheat protection and automatic pressure relief is characterized in that: it includes a welding assembly 1, a manual reset thermostat 2 and a toggle switch 3 arranged on the upper part of the welding assembly 1, a pressure relief valve 4 arranged in the middle part of the welding assembly 1, and a circuit board 5 and a three-speed switch 6 arranged at the lower part of the welding assembly 1; the material of the welding assembly 1 is 0Cr18Ni9;

[0024] The welding assembly 1 is provided with a heating tube 11 and a temperature sensor 12 .

[0025] An indicator light 13 and a plug 14 are arranged on the upper part of the welding assembly 1 .

[0026] The wall thickness of the welding assembly 1 is 1 mm.

[0027] The manual reset thermostat 2 is fixed to the upper part of the welding assembly 1 by a self-locking nut 21 .

[0028] The heating tube 11 and the temperature sensor 12 are installed at the lower part of the welding assembly 1 through threads.

[0029] The pressure relief valve 4 is installed in the middle of the welding assembly 1 through threads.

[0030] The plug 14 leads out the wire through the upper part of the welding assembly 1 .

[0031] The upper end cover 7 is installed on the upper part of the welding assembly 1 through a butterfly nut 71 ; the lower end cover 8 is installed on the lower part of the welding assembly 1 through a hexagonal nut 81 .

[0032] The circuit board 5 is installed in the lower end cover 8, and the lower end cover 8 is a bowl-shaped structure.

[0033] The manual reset thermostat 2 is located inside the upper end cover 7 .

[0034] The utility model is suitable for a washroom water heater and has the advantages of being safe, comfortable and reliable.

[0035] In actual use, the method of using the utility model includes the following steps:

[0036] Step 1: Fix the utility model under the wash basin in the bathroom through a clamp, connect the water supply pipeline, and connect the plug 14 to the 115VAC power supply;

[0037] Step 2: Check whether the clamp is secure and whether the plug 14 is securely connected;

[0038] Step 3: Toggle the three-speed switch 6, select the appropriate temperature gear, and then turn the toggle switch 3 to the ON gear, the indicator light 13 lights up, the heating tube 11 starts heating, and the utility model starts to work normally;

[0039] Step 4: After waiting for 10 minutes of heating, turn on the hot water switch of the wash basin to supply hot water;

[0040] Step 5: After the flight, before the drinking water system is depressurized, turn the toggle switch 3 to the OFF position, the indicator light 13 goes out, and the heating tube 11 stops heating.

[0041] Step 6: During normal heating, if no hot water is supplied, check whether the plug 14 is loose, check whether the toggle switch 3 is in the ON position, and check whether the indicator light 13 is off;

[0042] If the plug 14 is not loose, and the toggle switch 3 is in the ON position and the indicator light 5 is off, turn the toggle switch 3 to the OFF position, unscrew the butterfly nut 71, remove the upper end cover 7, check whether the top of the manual reset thermostat 2 is convex, if it is convex, press it to reset, install the upper end cover 7, tighten the butterfly nut 71, turn the toggle switch 3 to the ON position, the indicator light 5 is on, and the utility model resumes normal operation;

[0043] Step 7: If the water supply pressure increases to 80psi-94psi (550kPa-650kPa), the pressure relief valve 4 automatically opens to release pressure and reduce the pressure in the cavity. When it is not less than 50.8psi (350kPa), the pressure relief valve 4 can automatically close to stop releasing pressure.

[0044] Other parts not described belong to the prior art.

Claims

1. A three-speed water heater with manually reset overheat protection and automatic pressure relief, characterized in that: It comprises a welding assembly (1), a manual reset thermostat (2) and a toggle switch (3) arranged at the upper part of the welding assembly (1), a pressure relief valve (4) arranged at the middle part of the welding assembly (1), and a circuit board (5) and a three-speed switch (6) arranged at the lower part of the welding assembly (1); A heating tube (11) and a temperature sensor (12) are provided in the welding assembly (1).

2. A three-speed water heater with manually reset overheat protection and automatic pressure relief according to claim 1, characterized in that: An indicator light (13) and a plug (14) are arranged on the upper part of the welding assembly (1).

3. A three-speed water heater with manually reset overheat protection and automatic pressure relief according to claim 1, characterized in that: The wall thickness of the welding assembly (1) is 1 mm.

4. A three-speed water heater with manually reset overheat protection and automatic pressure relief according to claim 1, characterized in that: The manual reset thermostat (2) is fixed to the upper part of the welding assembly (1) via a self-locking nut (21).

5. A three-speed water heater with manually reset overheat protection and automatic pressure relief according to claim 1, characterized in that: The heating tube (11) and the temperature sensor (12) are installed on the lower part of the welding assembly (1) via threads.

6. A three-speed water heater with manually reset overheat protection and automatic pressure relief according to claim 1, characterized in that: The pressure relief valve (4) is installed in the middle of the welding assembly (1) via threads.

7. A three-speed water heater with manually reset overheat protection and automatic pressure relief according to claim 2, characterized in that: The plug (14) leads out a wire through the upper part of the welding assembly (1).

8. A three-speed water heater with manually reset overheat protection and automatic pressure relief according to claim 2, characterized in that: The upper end cover (7) is mounted on the upper part of the welding assembly (1) via a butterfly nut (71); and the lower end cover (8) is mounted on the lower part of the welding assembly (1) via a hexagonal nut (81).

9. A three-speed water heater with manually reset overheat protection and automatic pressure relief according to claim 8, characterized in that: The circuit board (5) is installed in the lower end cover (8).

Images