A gas water heater for dishwashers

Abstract

The utility model discloses a special gas water heater for dish washer is applied in the field of home appliance technology, the utility model discloses a water heater, the bottom intercommunication of water heater has the water outlet pipe, the bottom intercommunication of water outlet pipe has the tee, the right side intercommunication of tee has hot water inlet pipe, the right end intercommunication of hot water inlet pipe has the water control cavity, avoid washing dish initial stage to mix in cold water and influence washing temperature through instant discharge pipeline cold water, ensure that high temperature hot water reaches dish washer directly, do not influence oil dirt removal effect and reduce washing time, utilize the automatic switching waterway of water pressure change, solve the water temperature fluctuation problem caused by traditional pipeline cold water, whole course does not need electric power or sensor, when other water point opens and leads to the total pipe pressure rise, the water flow impact force automatic reduction dish washer branch pipe opening degree, prevent excessive water damage dish washer, after the end of water use peak, reset guarantees dish washer normal water supply.

Description

Technical Field

[0001] This utility model belongs to the field of home appliance technology, and specifically relates to a gas water heater for dishwashers. Background Technology

[0002] A dishwasher is a device that automatically cleans bowls, chopsticks, plates, dishes, knives, forks, and other tableware. Fully automatic dishwashers on the market can be divided into two categories: household and commercial. Household fully automatic dishwashers are only suitable for home use and mainly include cabinet-style, countertop, sink-integrated, and combined models. A water heater is a device that uses various physical principles to raise the temperature of cold water to produce hot water within a certain time. Based on different principles, they can be divided into electric water heaters, gas water heaters, solar water heaters, magnetic water heaters, air source heat pump water heaters, and central heating water heaters, etc.

[0003] However, with traditional gas water heaters specifically designed for dishwashers, the cold water accumulated in the pipes enters the dishwasher first each time it is started. This results in the water temperature not reaching the standard for the first 2-3 minutes of washing, which affects the degreasing effect and prolongs the washing time. After the machine is turned off, the residual hot water in the pipes cools down naturally, which wastes energy and creates a new cold water section for the next use. At the same time, it lacks an adaptive diversion structure. When high-flow devices such as showers are turned on, the pressure may rise suddenly, causing the dishwasher to receive too much water. This can affect the washing effect or even damage the dishwasher.

[0004] To address the problems mentioned in the background above, a gas water heater specifically designed for dishwashers is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a gas water heater specifically for dishwashers, which has the advantages of preventing water temperature fluctuations and providing diversion protection.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a gas water heater for dishwashers, comprising a water heater, characterized in that: a water outlet pipe is connected to the bottom of the water heater, a tee is connected to the bottom of the water outlet pipe, a hot water inlet pipe is connected to the right side of the tee, a water control chamber is connected to the right end of the hot water inlet pipe, a hot water outlet pipe is connected to the right side of the water control chamber, a drain pipe is connected to the bottom of the left side of the inner wall of the water control chamber, a spring is fixedly connected to the bottom of the left side of the spring, a piston is bolted to the right side of the spring, and a diversion mechanism is provided inside the tee.

[0007] The above technical solution involves connecting the dishwasher to the hot water outlet pipe. When the dishwasher needs to operate, hot water heated by gas in the water heater enters the tee through the outlet pipe, then flows into the hot water inlet pipe. From the hot water inlet pipe, the hot water enters the control chamber. The water pressure pushes the piston to the right, blocking the drain pipe at the bottom and preventing hot water from being discharged. After entering the hot water outlet pipe from the control chamber, the hot water enters the dishwasher to wash dishes. At this time, the piston loses the force of the hot water pressure, and the spring rebounds, causing the piston to move to the left and return to its original position. The top of the drain pipe leaks out. When the dishwasher does not need hot water, the water inside the pipe cools down due to natural heat dissipation, affecting the hot water temperature fluctuation during the next dishwasher cycle. The cold water inside the hot water inlet pipe flows down naturally into the control chamber and is discharged from the drain pipe along with the cold water inside the control chamber. This timely discharge of cold water from the pipe prevents cold water from mixing in during the initial washing process and affecting the washing temperature. It ensures that high-temperature hot water reaches the dishwasher directly, without affecting the degreasing effect and reducing washing time. The system automatically switches the water path based on water pressure changes, solving the water temperature fluctuation problem caused by cold water in traditional pipes. The entire process requires no electricity or sensors.

[0008] The present invention is further configured such that the diversion mechanism includes a rotating shaft, the rotating shaft is located at the bottom between the front end and the rear end of the inner wall of the tee and is hinged thereto, a diversion plate is fixedly sleeved on the rear end of the rotating shaft surface, a counterweight is fixedly sleeved on the end of the rotating shaft away from the tee, and a water distribution pipe is connected to the left side of the tee.

[0009] The above technical solution employs a diversion mechanism. When the dishwasher and other devices require hot water, the water pressure in the water heater increases. After the hot water enters the tee, the diversion plate initially tilts slightly towards the hot water inlet pipe. The high water pressure pushes the diversion plate to the right, increasing the area blocked from the hot water inlet pipe. A large amount of hot water flows out from the diversion pipe. At this time, the diversion plate drives the rotating shaft to rotate, which in turn moves the counterweight upward. When the water pressure decreases, the counterweight falls due to its own weight, causing the rotating shaft to move in the opposite direction. The rotating shaft then drives the diversion plate to tilt to the left, returning to the initial slightly tilted hot water inlet pipe state. When other water outlets are turned on, causing the main pipe pressure to rise, the water flow impact force automatically reduces the opening of the dishwasher branch pipe to prevent excessive water intake from damaging the dishwasher. After the peak water usage period ends, the system resets to ensure normal water supply to the dishwasher. The semi-open initial state maintains basic water supply while reserving adjustment margin. This adaptive mechanical distribution mechanism effectively solves the problem of pressure fluctuations when multiple devices use water simultaneously.

[0010] The present invention is further configured such that a one-way valve is connected to the bottom of the drain pipe.

[0011] The above technical solution involves setting up a one-way valve. When cold water flows back, the ball inside the one-way valve floats up and blocks the passage with the drain pipe, preventing cold water at the bottom of the drain pipe from flowing back into the water control chamber, affecting the hot water temperature of the dishwasher, and causing contamination inside the water control chamber.

[0012] The present invention is further configured such that a telescopic rod is sleeved inside the spring.

[0013] The above technical solution uses a telescopic rod to limit the movement of the spring.

[0014] The present invention is further configured such that the bottom of the water control cavity is a slope.

[0015] The above technical solution, by setting it as a ramp, can help drain the cold water inside the water control chamber.

[0016] The present invention is further configured such that the hot water inlet pipe is inclined.

[0017] The above technical solution, by setting it to an inclined shape, can help drain the cold water inside the heat pipe inlet.

[0018] The present invention is further configured such that the length of the hot water outlet pipe is 30 centimeters.

[0019] Using the above technical solution: by setting it to 30 centimeters, a small amount of cold water may still remain in the pipe from the right side of the water control chamber to the hot water outlet pipe of the dishwasher. If the distance exceeds 30 centimeters, the length of this pipe increases, and the amount of residual cold water will also increase. When the dishwasher is started next time, this residual cold water will enter the machine first, resulting in a lower initial washing water temperature, which affects the cleaning and sterilization effect.

[0020] The present invention is further configured such that a water inlet pipe is connected to the top of the water heater.

[0021] The above technical solution allows for the addition of cold water for heating by installing an inlet pipe.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. This utility model avoids the mixing of cold water into the washing water at the beginning of the washing process by immediately draining cold water from the pipes, thus ensuring that hot water reaches the dishwasher directly without affecting the degreasing effect and reducing washing time. It also solves the problem of water temperature fluctuation caused by cold water from traditional pipes by automatically switching the water path based on water pressure changes. The entire process requires no electricity or sensors.

[0024] 2. This utility model automatically reduces the opening of the dishwasher branch pipe when the main pipe pressure rises due to the opening of other water points, preventing excessive water intake from damaging the dishwasher. After the peak water usage period ends, it resets to ensure normal water supply to the dishwasher. The semi-open initial state maintains basic water supply while reserving adjustment margin. This adaptive mechanical distribution mechanism effectively solves the problem of pressure fluctuation when multiple devices use water at the same time. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a partial front sectional view of the structure of this utility model;

[0027] Figure 3 This is a top sectional view of a partial structure of this utility model;

[0028] Figure 4 This is a partial structural left sectional view of this utility model.

[0029] Attached reference numerals: 1. Water heater; 2. Outlet pipe; 3. Inlet pipe; 4. T-junction; 5. Hot water inlet pipe; 6. Hot water outlet pipe; 7. Water control chamber; 8. Drain pipe; 9. Divider pipe; 10. Spring; 11. Piston; 12. Shaft; 13. Diverter plate; 14. Counterweight; 15. Check valve; 16. Telescopic rod. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Example 1:

[0032] refer to Figure 1 , Figure 2 , Figure 3A gas water heater specifically designed for dishwashers includes a water heater 1. The water heater 1 has a water outlet pipe 2 connected to its bottom, and a tee 4 connected to the bottom of the water outlet pipe 2. The tee 4 is made of 304 stainless steel, which is corrosion-resistant and high-temperature resistant. A hot water inlet pipe 5 is connected to the right side of the tee 4, and a water control chamber 7 is connected to the right end of the hot water inlet pipe 5. A hot water outlet pipe 6 is connected to the right side of the water control chamber 7, and a drain pipe 8 is connected to the bottom of the water control chamber 7. A spring 10 is fixedly connected to the bottom left side of the inner wall of the water control chamber 7. The spring 10 is made of 65Mn spring steel, with a spring force coefficient of 5-10 N / mm and a free length of 50 mm, ensuring that the piston 11 can completely seal the drain pipe under a water pressure of 0.1 MPa. A piston 11 is bolted to the right side of the spring 10. The piston 11 is made of food-grade silicone, which is high-temperature resistant and wear-resistant, with a diameter of 30 mm and a gap of 0.1-0.2 mm between it and the water control chamber 7. A silicone sealing lip is used to ensure sealing performance and reduce jamming. The interior of the tee 4... Equipped with a diversion mechanism, the dishwasher is connected to the hot water outlet pipe 6. When the dishwasher needs to work, the hot water heated by the gas in the water heater 1 enters the tee 4 from the outlet pipe 2, and after diversion, it enters the hot water inlet pipe 5 from the tee 4. From the hot water inlet pipe 5, it enters the water control chamber 7. The water pressure of the hot water pushes the piston 11 to move to the right. The water pressure is 0.05-0.6MPa, covering the normal water pressure range of a household, blocking the drain pipe 8 at the bottom to prevent the hot water from being discharged from the drain pipe 8. After the hot water enters the hot water outlet pipe 6 from the water control chamber 7, it enters the dishwasher to wash the dishes. At this time, the piston 11 loses the force of the hot water pressure, and the spring 10 rebounds, causing the piston 11 to move to the left and return to its original position. The top of the drain pipe 8 leaks out. When the dishwasher does not need hot water, the water inside the pipe cools down due to natural heat dissipation, affecting the hot water temperature fluctuation when the dishwasher works next time. The cold water inside the hot water inlet pipe 5 flows down naturally into the water control chamber 7 and is discharged from the drain pipe 8 together with the cold water inside the water control chamber 7.

[0033] refer to Figure 1 , Figure 2 The bottom of the drain pipe 8 is connected to a one-way valve 15. By setting the one-way valve 15, when cold water flows back, the ball inside the one-way valve 15 floats up and blocks the passage with the drain pipe 8, preventing the cold water at the bottom of the drain pipe 8 from flowing back into the water control chamber 7, affecting the hot water temperature of the dishwasher, and causing contamination inside the water control chamber 7.

[0034] refer to Figure 2 , Figure 3 The spring 10 has a telescopic rod 16 inside, which can limit the movement of the spring 10. The material is 65Mn spring steel.

[0035] refer to Figure 2 , Figure 3 The bottom of the water control chamber 7 is set as a slope, which helps to drain the cold water inside the water control chamber 7.

[0036] refer to Figure 1 , Figure 2 The hot water inlet pipe 5 is set at an angle, which helps to drain the cold water inside the hot water inlet pipe.

[0037] refer to Figure 1 , Figure 2 The length of the hot water outlet pipe 6 is set to 30 centimeters. With this setting, a small amount of cold water may still remain in the pipe from the right side of the water control chamber 7 to the hot water outlet pipe 6 of the dishwasher. If the distance exceeds 30 centimeters, the length of this pipe will increase, and the amount of residual cold water will also increase. When the dishwasher is started next time, this residual cold water will enter the machine first, resulting in a lower initial washing water temperature, which will affect the cleaning and sterilization effect.

[0038] refer to Figure 1 The top of the water heater 1 is connected to a water inlet pipe 3. By setting the water inlet pipe 3, cold water can be added to the inside of the water heater 1 for heating.

[0039] Example 2:

[0040] refer to Figure 1 , Figure 2 , Figure 4 A gas water heater specifically designed for dishwashers includes a diversion mechanism comprising a rotating shaft 12, which is located at the bottom of the inner wall of a tee 4, between the front and rear ends, and is hinged thereto. A diversion plate 13, made of lightweight and high-strength aluminum alloy, is fixedly sleeved at the rear end of the rotating shaft 12. A counterweight 14, made of high-density cast iron and weighing 100-150g, is fixedly sleeved at the end of the rotating shaft 12 away from the tee 4, and is designed for rapid reset under water pressure of 0.2-0.6MPa. A water distribution pipe 9 is connected to the left side of the tee 4, allowing hot water to be distributed when the dishwasher and other appliances require hot water. When the water pressure in water heater 1 increases, hot water enters the tee 4. In the initial state, the diverter plate 13 is slightly tilted towards the hot water inlet pipe 5. The high water pressure pushes the diverter plate 13 to the right, causing it to tilt to the right and increasing the area blocking the hot water inlet pipe 5. A large amount of hot water flows out from the diverter pipe 9. At this time, the diverter plate 13 drives the rotating shaft 12 to rotate. The rotating shaft 12 drives the counterweight 14 to move upward. When the water pressure decreases, the counterweight 14 falls due to its own weight, causing the rotating shaft 12 to move in the opposite direction. The rotating shaft 12 drives the diverter plate 13 to tilt to the left, returning to the initial slightly tilted state of the hot water inlet pipe 5.

[0041] Brief description of operation: The dishwasher is connected to the hot water outlet pipe 6. When the dishwasher needs to operate, hot water heated by gas in the water heater 1 enters the tee 4 from the outlet pipe 2, and after being split, it enters the hot water inlet pipe 5 from the tee 4. From the hot water inlet pipe 5, it enters the water control chamber 7. The water pressure of the hot water pushes the piston 11 to the right, blocking the drain pipe 8 at the bottom, preventing hot water from being discharged from the drain pipe 8. After the hot water enters the hot water outlet pipe 6 from the water control chamber 7, it enters the dishwasher to wash the dishes. At this time, because the piston 11 loses the force of the hot water pressure, the spring 10 rebounds and drives the piston 11 to move to the left and return to its original position. The top of the drain pipe 8 leaks out. When the dishwasher does not need hot water, the water inside the pipe cools down due to natural heat dissipation, affecting the hot water temperature when the dishwasher operates for the next time. The cold water inside the hot water inlet pipe 5 flows naturally into the water control chamber 7 and is discharged from the drain pipe 8 along with the cold water inside the water control chamber 7. When the dishwasher and other appliances need hot water, the water pressure of the water heater 1 increases. After the hot water enters the tee 4, the diverter plate 13 is slightly tilted to the hot water inlet pipe 5 in the initial state. The high water pressure pushes the diverter plate 13 to the right, causing it to tilt to the right and increasing the area blocking the hot water inlet pipe 5. A large amount of hot water flows out from the diverter pipe 9. At this time, the diverter plate 13 drives the rotating shaft 12 to rotate. The rotating shaft 12 drives the counterweight 14 to move upward. When the water pressure decreases, the counterweight 14 falls due to its own weight, causing the rotating shaft 12 to move in the opposite direction. The rotating shaft 12 drives the diverter plate 13 to tilt to the left, returning to the initial slightly tilted state of the hot water inlet pipe 5.

[0042] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0043] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A gas water heater specifically for dishwashers, comprising a water heater (1), characterized in that: The bottom of the water heater (1) is connected to a water outlet pipe (2), the bottom of the water outlet pipe (2) is connected to a tee (4), the right side of the tee (4) is connected to a hot water inlet pipe (5), the right end of the hot water inlet pipe (5) is connected to a water control chamber (7), the right side of the water control chamber (7) is connected to a hot water outlet pipe (6), the bottom of the water control chamber (7) is connected to a drain pipe (8), the bottom of the left side of the inner wall of the water control chamber (7) is fixedly connected to a spring (10), the right side of the spring (10) is bolted with a piston (11), and the inside of the tee (4) is provided with a diversion mechanism.

2. A gas water heater specifically designed for dishwashers according to claim 1, characterized in that: The diversion mechanism includes a rotating shaft (12), which is located at the bottom between the front and rear ends of the inner wall of the tee (4) and is hinged thereto. A diversion plate (13) is fixedly sleeved on the rear end of the rotating shaft (12). A counterweight block (14) is fixedly sleeved on the end of the rotating shaft (12) away from the tee (4). A water distribution pipe (9) is connected to the left side of the tee (4).

3. A gas water heater specifically designed for dishwashers according to claim 1, characterized in that: The bottom of the drain pipe (8) is connected to a one-way valve (15).

4. A gas water heater specifically designed for dishwashers according to claim 1, characterized in that: The spring (10) has a telescopic rod (16) sleeved inside.

5. A gas water heater specifically designed for dishwashers according to claim 1, characterized in that: The bottom of the water control cavity (7) is set as a slope.

6. A gas water heater specifically designed for dishwashers according to claim 1, characterized in that: The hot water inlet pipe (5) is set at an angle.

7. A gas water heater specifically designed for dishwashers according to claim 1, characterized in that: The length of the hot water outlet pipe (6) is set to thirty centimeters.

8. A gas water heater specifically designed for dishwashers according to claim 1, characterized in that: The top of the water heater (1) is connected to a water inlet pipe (3).

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