Integrated water dispenser for train

Abstract

The invention relates to an integrated waterer for a train, the integrated waterer comprises a water drinking seat, a water storage tank, a heating assembly and a filtering assembly, the water drinking seat is provided with a water taking area, the top end of the water taking area is provided with a water outlet, the water storage tank is installed on the water drinking seat, and the heating assembly comprises a water suction pump, a hot water pipe, a cold water pipe and a thick film heater. The water suction pump is installed on the drinking water seat, the water inlet end of the water suction pump is communicated with the water storage tank, the hot water pipe and the cold water pipe are both installed between the water outlet end of the water suction pump and the water outlet, the thick film heater is installed on the hot water pipe and used for heating water in the hot water pipe, and the thick film heater is used for heating water in the cold water pipe. A hot water valve is installed on the hot water pipe, a cold water valve is installed on the cold water pipe, and the filtering assembly is installed at the water inlet end of the water storage tank and used for filtering impurities in water. The water dispenser has the effect of improving the applicability of the water dispenser.

Description

Technical Field

[0001] The present application relates to the technical field of drinking fountains, and in particular to an integrated drinking fountain for trains. Background Art

[0002] The effective supply of drinking water on trains is an indispensable part of train operations. With the development of society and the continuous improvement of living standards, people's requirements for the quality of drinking water provided on trains, especially on EMUs and high-speed trains, are also increasing. For this reason, the drinking fountains or similar devices that provide drinking water on trains are usually composed of two interconnected parts, one is a water purification and filtration device at the front end, and the other is an electric water heater at the back end. The water purification and filtration device at the front end is used to filter the drinking water source on the train, and the electric water heater is used to heat the purified water output by the water purification and filtration device, and then output boiled (hot) water for drinking.

[0003] The Chinese patent with the announcement number CN109892980B discloses a special drinking water machine for railway trains, which includes a water purification filter device and a water heater connected with the water purification filter device, and an electric control device for control. The water purification filter device includes a filter component, a water inlet pipeline, a water purification outlet pipeline, a pipeline water storage emptying device for emptying the water stored in the pipeline of the water purification filter device, an insulation layer for antifreeze and a first electric heating element; the water heater includes a water heating container, a water delivery pipeline, a second electric heating element for heating the water heating container, a water flow control device for controlling the amount of water injected into the water heating container, and an emptying device connected to the water purification outlet pipeline of the water purification filter device and the water heating container of the water heater for emptying the stored water when needed. The outer periphery of the water heating container and the second electric heating element is provided with a fireproof and explosion-proof shell; the electric control device includes a controller containing a GPS positioning module that provides altitude information. The present invention can solve the problems of insufficient ultra-low temperature antifreeze and fireproof and explosion-proof capabilities of existing devices and safe water supply at high altitudes.

[0004] With respect to the above-mentioned related technologies, the water inside the water-boiling container is heated by a second heating element, and finally delivered to passengers for drinking through a water delivery pipeline. However, in the prior art, the drinking water for passengers is discharged from the water-boiling container, but the water-boiling container can only provide heated hot water. If the passenger needs water at room temperature, the water in the water-boiling container cannot be cooled down immediately, resulting in that the water dispenser in the prior art can only provide hot water and cannot deliver water at room temperature according to the actual needs of the passengers. The passengers have to spend more time cooling the boiled water by themselves, which reduces the applicability of the water dispenser.

[0005] Application Contents In order to improve the applicability of drinking fountains, the present application provides an integrated drinking fountain for trains.

[0006] The present application provides an integrated drinking fountain for trains using the following technical solutions: An integrated drinking fountain for trains comprises a drinking seat, a water storage tank, a heating component and a filtering component, wherein a water intake area is arranged on the drinking seat, a water outlet is arranged at the top of the water intake area, the water storage tank is mounted on the drinking seat, the heating component comprises a water pump, a hot water pipe, a cold water pipe and a thick film heater, the water pump is mounted on the drinking seat, the water inlet end of the water pump is connected with the water storage tank, the hot water pipe and the cold water pipe are both mounted between the water outlet end of the water pump and the water outlet, the thick film heater is mounted on the hot water pipe, the thick film heater is used to heat the water inside the hot water pipe, a hot water valve is mounted on the hot water pipe, a cold water valve is mounted on the cold water pipe, the filtering component is mounted on the water inlet end of the water storage tank, and the filtering component is used to filter impurities in the water.

[0007] By adopting the above technical solution, before drinking water, the filter component pumps and filters the water source of the train to make the water into direct drinking water, and then discharges it into the water storage tank for temporary storage. When drinking water, the pump is started. If drinking hot water, close the cold water valve, and the water enters the thick film heater through the hot water pipe for heating, passes through the hot water valve, and finally is discharged through the water outlet. If drinking normal temperature water, close the hot water valve, and the water passes through the cold water valve and is discharged from the water outlet, achieving the effect of taking water at the drinking water seat. By setting up hot water pipes, hot water valves, cold water pipes and cold water valves, passengers can choose water of corresponding temperature according to actual needs. If they want to take warm water, they can take part of both. Compared with the existing technology, the additional water supply temperature function of the drinking fountain is added, which improves the applicability of the drinking fountain.

[0008] Optionally, the thick film heater includes a heating element, a water inlet box, a mounting shell, a water isolation cylinder and a water inlet cylinder. The water inlet box is installed on the water drinking seat and is connected to the hot water pipe. The water inlet cylinder, the water isolation cylinder and the mounting shell are all installed on the water inlet box. The water isolation cylinder is located between the water inlet cylinder and the mounting shell. A plurality of drainage holes are opened on the side wall of the water isolation cylinder near the bottom end. The top of the mounting shell is connected to the hot water valve.

[0009] By adopting the above technical solution, during heating, water enters the water inlet box through the hot water pipe, gradually fills the water inlet cylinder, then overflows the water inlet cylinder, and enters between the water barrier cylinder and the water inlet cylinder, and then enters the installation shell through the drainage hole until the water fills the installation shell and is discharged through the hot water valve. In this process, the installation shell is heated by the heating element, and the water is heated by heat exchange, thereby achieving the effect of heating water. By setting the water inlet cylinder and the water barrier cylinder, the water movement path is increased, so that the water has more time to contact the water inlet cylinder and the water barrier cylinder to achieve preliminary heating of the water, and then heat exchange with the heated installation shell to achieve the purpose of final heating of the water, thereby improving the heating efficiency of the water.

[0010] Optionally, a gas-liquid separation box and a steam condensation box are installed on the water storage tank, and a ventilation pipe is connected between the gas-liquid separation box, the steam condensation box and the water storage tank. The gas-liquid separation box is connected between the top of the installation shell and the hot water valve. A main drain pipe is arranged below the water storage tank, and the steam condensation tank is connected to the main drain pipe.

[0011] By adopting the above technical solution, a large amount of water vapor is generated after the water is heated. If the water vapor is discharged together with the water, there is a possibility of scalding passengers. When discharging boiling water, by setting up a gas-liquid separation box and a steam condensation box, the hot water first enters the gas-liquid separation box, the water vapor rises, and most of the water vapor is discharged into the steam condensation box and the water storage tank through the ventilation pipe. The water vapor in the steam condensation box is liquefied into condensed water and then discharged into the main drainage pipe. The water vapor in the water storage tank is liquefied and then converges with water. The remaining part of the water vapor in the gas-liquid separation box is discharged together with the boiling water, which reduces the possibility of passengers being scalded by water vapor.

[0012] Optionally, a liquid level electrode and a temperature sensor are installed on the top of the mounting shell, a return pipe connected to the water inlet box is installed on the gas-liquid separation box, a return valve is installed on the return pipe, the threshold of the temperature sensor is set to 90 degrees, a controller is installed on the filter assembly, and the liquid level electrode and the temperature sensor are electrically connected to the controller.

[0013] By adopting the above technical solution, when heating water, the water level rises and contacts the liquid level electrode. The liquid level electrode sends an electrical signal to the controller, so that the control system starts the heating element to heat the mounting shell. Through the detection of the temperature sensor, a part of low-temperature water below 90 degrees (water that enters the thick film heater before reaching the liquid level electrode) enters the gas-liquid separation box. At this time, the hot water valve is closed and the return valve is opened. The low-temperature water re-enters the water inlet box through the return pipe for reheating. After the water temperature reaches 90 degrees, the return valve is closed and the hot water valve is opened to discharge the water above 90 degrees, so that passengers can directly use drinking water close to 100 degrees.

[0014] Optionally, a paper box tube is installed on the drinking water seat, the bottom end of the paper box tube is open and located in the water intake area, the top end of the paper box tube is connected to a cover via a chain, and a plurality of elastic steel sheets are connected to the inner wall of the paper box tube.

[0015] By adopting the above technical solution, the elastic steel sheet in the paper box tube is used to support the disposable water cup, and then the top of the paper box tube is sealed by the sealing cover to block dust. When taking water, the disposable water cup is directly taken from the bottom of the paper box tube, which provides convenience for passengers to take water.

[0016] Optionally, a drainage trough is provided at the bottom end of the water intake area, a drainage outlet connected to the main drainage pipe is provided at the bottom end of the drainage trough, a placement plate is installed at the top end of the drainage trough, a plurality of water-permeable grooves are opened on the placement plate, a filter residue net is installed in the drainage trough, and the filter residue net covers the drainage outlet.

[0017] By adopting the above technical solution, when passengers pour water, they can pour the water directly into the drain trough. The water is intercepted by the placement plate and the filter residue net and then directly discharged into the main drain pipe. The placement plate is used to hold disposable water cups, and the filter residue net is used to intercept impurities in the water, such as tea leaves, etc., which improves the convenience of passengers in taking and pouring water.

[0018] Optionally, the filter assembly includes a filter box, a primary filter cartridge, a final filter cartridge, a water suction pump and a water path element. The filter box is arranged below the water storage tank, the primary filter cartridge, the final filter cartridge, the water suction pump and the water path element are all installed in the filter box, the primary filter cartridge, the final filter cartridge and the water suction pump are all connected to the water path element, a train water tank is arranged on one side of the filter box, the water inlet end of the water suction pump is connected to the train water tank, the controller is connected to the filter water box, and the water suction pump is electrically connected to the controller.

[0019] By adopting the above technical solution, when filtering water, the water suction pump is started, so that the water in the train water tank passes through the water suction pump, the primary filter cartridge and the final filter cartridge in sequence, so that the water reaches the standard for direct drinking, and finally the water is discharged into the water storage tank, achieving the effect of filtering water.

[0020] Optionally, an antifreeze emptying assembly is provided on the filter assembly, and the antifreeze emptying assembly includes a gas compressor, a water pipe and a straight discharge pipe. The gas compressor is arranged on one side of the filter box, and a vent valve is installed at the air outlet end of the gas compressor. A water tank valve is installed on the train water tank. The water pipe is connected between the primary filter cartridge and the water storage tank, and a water valve is installed on the water pipe. The straight discharge pipe is connected between the return pipe and the main drain pipe, and a straight discharge valve is installed on the straight discharge pipe.

[0021] By adopting the above technical solution, in a low temperature environment and without taking water, if there is residual water in the primary filter cartridge, the final filter cartridge, the thick film heater, and the gas-liquid separation box, the residual water is easy to freeze and cause pipe blockage. During antifreeze, start the gas compressor, open the vent valve and the water valve, close the water tank valve, and the water inside the primary filter cartridge and the final filter cartridge is quickly discharged into the water storage tank under the action of air pressure, reducing the possibility of freezing of the primary filter cartridge and the final filter cartridge. At the same time, open the return valve and the direct discharge valve, so that the water inside the gas-liquid separation box and the thick film heater is discharged into the main drain pipe, thereby reducing the possibility of damage to the heating component and the filter component due to water freezing.

[0022] Optionally, a magnetron is installed on the water tank, one end of the magnetron corresponds to the bottom end of the water tank, the other end of the magnetron corresponds to the top end of the water tank, and the magnetron is electrically connected to the controller.

[0023] By adopting the above technical solution, the magnetron synchronizes the internal water level of the water tank through the internal buoy. When the water level drops, driving the buoy down to the lowest water level, the magnetron sends an electrical signal to the controller, causing the control system to start the water pump to replenish the water tank. When the buoy rises to the highest water level, the water pump is powered off to stop replenishing the water tank, thereby achieving the effect of automatic replenishment and water cut-off of the water tank.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Before drinking water, the filter component pumps and filters the water source of the train to make the water into direct drinking water, which is then discharged into the water storage tank for temporary storage. When drinking water, start the water pump. If you drink hot water, close the cold water valve, and the water enters the thick film heater through the hot water pipe for heating, passes through the hot water valve, and finally is discharged through the water outlet. If you drink normal temperature water, close the hot water valve, and the water passes through the cold water valve and is discharged from the water outlet, achieving the effect of taking water at the drinking water seat. By setting up hot water pipes, hot water valves, cold water pipes and cold water valves, passengers can choose water of corresponding temperature according to actual needs. If they want to take warm water, they can take part of both. Compared with the existing technology, the water dispenser has an additional water supply temperature function, which improves the applicability of the water dispenser; 2. During heating, water enters the water inlet box through the hot water pipe, gradually fills the water inlet cylinder, then overflows the water inlet cylinder, and enters between the water barrier and the water inlet cylinder, and then enters the installation shell through the drainage hole until the water fills the installation shell and is discharged through the hot water valve. In this process, the installation shell is heated by the heating element, and the water is heated by heat exchange, achieving the effect of heating the water. By setting the water inlet cylinder and the water barrier, the water movement path is increased, so that the water has more time to contact the water inlet cylinder and the water barrier to achieve preliminary heating of the water, and then heat exchange with the heated installation shell to achieve the purpose of final heating of the water, thereby improving the heating efficiency of the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an integrated drinking fountain for trains in an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the structure of the heating component and the filtering component in the embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the structure of the drinking water seat in the embodiment of the present application.

[0028] Figure 4 It is a cross-sectional view used to illustrate the structure of the paper box tube in the embodiment of the present application.

[0029] Figure 5 It is an exploded view used to illustrate the drainage trough structure in the embodiment of the present application.

[0030] Figure 6 It is a schematic diagram of the structure of the water storage tank and the heating component in the embodiment of the present application.

[0031] Figure 7 It is an exploded view used to illustrate the structure of the heating component, the gas-liquid separation box and the water storage tank in the embodiment of the present application.

[0032] Figure 8 It is a cross-sectional view used to illustrate the structure of the thick film heater in the embodiment of the present application.

[0033] Fig. 9 It is a schematic diagram of an integrated drinking fountain for trains in an embodiment of the present application.

[0034] Explanation of reference numerals: 1. drinking water seat; 11. water intake area; 12. water outlet; 13. paper box tube; 131. elastic steel sheet; 132. cover; 14. drainage trough; 141. placement plate; 142. filter residue net; 2. water storage tank; 21. gas-liquid separation box; 211. ventilation pipe; 212. return pipe; 213. return valve; 22. steam condensation box; 23. magnetron; 3. train water tank; 31. controller; 32. water tank valve; 4. filter assembly; 41. filter box; 42. primary filter cartridge; 43. final filter cartridge; 44. water suction pump; 45. waterway Component; 5. Main drain pipe; 6. Heating assembly; 61. Water pump; 62. Hot water pipe; 621. Hot water valve; 63. Cold water pipe; 631. Cold water valve; 64. Thick film heater; 641. Heating element; 642. Water inlet box; 643. Mounting shell; 6431. Liquid level electrode; 6432. Temperature sensor; 644. Water barrier; 6441. Drain hole; 645. Water inlet cylinder; 7. Antifreeze drain assembly; 71. Gas compressor; 711. Vent valve; 72. Water pipe; 721. Water valve; 73. Direct discharge pipe; 731. Direct discharge valve. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-Figure 9 This application is described in further detail.

[0036] The present application embodiment discloses an integrated drinking fountain for trains. Figure 1 and Figure 2The integrated drinking fountain for trains includes a drinking seat 1, a water storage tank 2 and a train water tank 3. A filter assembly 4 is arranged between the train water tank 3 and the water storage tank 2. The filter assembly 4 includes a filter box 41, a primary filter cartridge 42, a final filter cartridge 43, a water suction pump 44 and a water path element 45. A controller 31 is installed on the train water tank 3. The filter box 41 is arranged on one side of the train water tank 3. The primary filter cartridge 42, the final filter cartridge 43, the water suction pump 44 and the water path element 45 are all installed in the filter box 41. The primary filter cartridge 42, the final filter cartridge 43 and the water suction pump 44 are all connected to the water path element 45. The water inlet end of the water suction pump 44 is connected to the train water tank 3. A water tank valve 32 is installed on the train water tank 3. The water storage tank 2 is installed on the drinking seat 1. The water path element 45 is connected to the bottom end of the water storage tank 2. The water tank valve 32 is a solenoid valve and is electrically connected to the controller 31.

[0037] During filtering, the water suction pump 44 is started through the controller 31, so that the water in the train water tank 3 passes through the water suction pump 44, the primary filter cartridge 42 and the final filter cartridge 43 in sequence, so that the water reaches the direct drinking standard, and is finally discharged into the water storage tank 2, achieving the effect of filtering water.

[0038] Reference Figure 3 and Figure 4 , a water intake area 11 is provided on the drinking water seat 1, and a water outlet 12 is provided at the top of the water intake area 11. A paper box tube 13 is installed on the drinking water seat 1, and both the top and bottom ends of the paper box tube 13 are opened, and the bottom end is located in the water intake area 11. A plurality of elastic steel sheets 131 are fixedly connected to the inner wall of the paper box tube 13. In this embodiment, three are taken as an example, and the three elastic steel sheets 131 are used to support a disposable water cup. The top of the paper box tube 13 is connected to a cover 132 through a chain, and the cover 132 covers the top of the paper box tube 13, and the cover 132 is used to block dust.

[0039] Reference Figure 1 , Figure 3 and Figure 5 A drainage trough 14 is provided at the bottom of the water intake area 11, and a placement plate 141 is installed at the top of the drainage trough 14. The placement plate 141 has a plurality of water-permeable grooves, and the placement plate 141 is used to hold disposable water cups. A drainage port is provided at the bottom of the drainage trough 14, and a main drainage pipe 5 is provided below the drinking water seat 1, and the drainage pipe is connected to the main drainage pipe 5. A filter residue net 142 is installed inside the drainage trough 14, and the filter residue net 142 covers the drainage port.

[0040] By providing the paper box tube 13 and the elastic steel sheet 131, passengers can directly use a disposable water cup to get water in the water collection area 11. When getting water, the disposable water cup can be placed on the placement plate 141. When pouring water, the excess water can be directly poured into the drainage trough 14, and the water finally flows into the main drainage pipe 5, thereby improving the convenience of getting and pouring water from the drinking fountain.

[0041] Reference Figure 6 and Figure 7 A heating assembly 6 is provided between the water storage tank 2 and the water drinking seat 1, and the heating assembly 6 includes a water pump 61, a hot water pipe 62, a cold water pipe 63 and a thick film heater 64. The water pump 61 is installed on the water drinking seat 1, and the water pump 61 is electrically connected to the controller 31. The water inlet end of the water pump 61 is connected to the bottom end of the water storage tank 2, and a three-way pipe is provided at the water outlet end. The ends of the hot water pipe 62 and the cold water pipe 63 are both connected to the water outlet end of the water pump 61 through the three-way pipe. A hot water valve 621 is installed on the hot water pipe 62, and a cold water valve 631 is installed on the cold water pipe 63. The hot water valve 621 and the cold water valve 631 are both connected to the water outlet 12. The hot water valve 621 and the cold water valve 631 are both solenoid valves, and are both electrically connected to the controller 31.

[0042] Reference Figure 8 The thick film heater 64 includes a heating element 641, a water inlet box 642, a mounting shell 643, a water barrier 644 and a water inlet cylinder 645. The water inlet box 642 is connected to the hot water pipe 62, and the water inlet cylinder 645, the water barrier 644 and the mounting shell 643 are sequentially mounted on the water inlet box 642. The water barrier 644 is located between the water inlet cylinder 645 and the mounting shell 643. A plurality of drainage holes 6441 are opened on the side wall of the water barrier 644 near the bottom.

[0043] Reference Figure 6 and Figure 7 A gas-liquid separation box 21 and a steam condensation box 22 are installed on the water storage tank 2. The steam condensation box 22 is located between the gas-liquid separation box 21 and the water storage tank 2. A ventilation pipe 211 is connected between the gas-liquid separation box 21, the steam condensation box 22 and the top of the water storage tank 2. The gas-liquid separation box 21 is connected between the top of the installation shell 643 and the hot water valve 621, and the bottom end of the steam condensation box 22 is connected to the main drain pipe 5.

[0044] During heating, water enters the water inlet box 642 through the hot water pipe 62, the water gradually overflows the water inlet cylinder 645, and enters the water barrier cylinder 644, and then enters the mounting shell 643 through the drainage hole 6441, until it is discharged into the gas-liquid separation box 21 through the top of the mounting shell 643. During this process, the heating element 641 is started to heat the water. When the hot water enters the gas-liquid separation box 21, the water vapor rises, and most of it enters the steam condensation box 22 and the water storage tank 2 respectively through the ventilation pipe 211. The water vapor inside the steam condensation box 22 is liquefied and discharged into the main drainage pipe 5. The water vapor inside the water storage tank 2 is liquefied and mixed with water, and the remaining water vapor and hot water are discharged through the water outlet 12, thus completing the heating process.

[0045] Reference Figure 7 and Figure 8In order to allow passengers to directly use drinking hot water above 90 degrees, a liquid level electrode 6431 and a temperature sensor 6432 are installed at the top of the installation shell 643. The threshold of the temperature sensor 6432 is set to 90 degrees. A return pipe 212 is connected between the bottom end of the gas-liquid separation box 21 and the water inlet box 642. A return valve 213 is installed on the return pipe 212. The return valve 213 is a solenoid valve. The liquid level electrode 6431, the temperature sensor 6432 and the return valve 213 are all electrically connected to the controller 31.

[0046] When the horizontal surface inside the mounting shell 643 contacts the liquid level electrode 6431, the liquid level electrode 6431 generates an electrical signal to the controller 31, causing the control system to start the heating element 641 to heat the mounting shell 643. At this time, the hot water valve 621 is closed and the return valve 213 is opened. The hot water passes through the gas-liquid separation box 21 and the return pipe 212 in turn and returns to the water inlet box 642 until the hot water temperature reaches 90 degrees. The temperature sensor 6432 sends an electrical signal to the controller 31, causing the control system to close the return valve 213 and open the hot water valve 621, so that direct drinking hot water above 90 degrees is discharged from the water outlet 12, thereby achieving the effect of directly taking direct drinking hot water above 90 degrees.

[0047] Reference Figure 7 In order to make the water storage tank 2 automatically replenish water, a magnetron 23 is installed on the water storage tank 2, one end of the magnetron 23 is aligned with the bottom of the water storage tank 2, and the other end is aligned with the top of the water storage tank 2, and the magnetron 23 is electrically connected to the controller 31. The magnetron 23 synchronizes the internal water level of the water storage tank 2 through the internal buoy. When the water level drops and drives the buoy to drop to the lowest water level, the magnetron 23 sends an electrical signal to the controller 31, so that the control system starts the pump 61 to replenish the water storage tank 2; when the buoy is raised to the highest water level, the pump 61 is powered off, so that the water storage tank 2 stops replenishing water, and the water storage tank 2 is automatically replenished and stopped.

[0048] Reference Figure 2 , Figure 6 and Figure 7 , an antifreeze emptying component 7 is provided on the filter component 4, and the antifreeze emptying component 7 includes a gas compressor 71, a water pipe 72 and a straight discharge pipe 73. The gas compressor 71 is arranged on one side of the train water tank 3, and a vent valve 711 is installed on the gas compressor 71. The water pipe 72 is installed between the primary filter cartridge 42 and the water storage tank 2, and a water valve 721 is installed on the water pipe 72. The straight discharge pipe 73 is installed between the return pipe 212 and the main drain pipe 5, and a straight discharge valve 731 is installed on the straight discharge pipe 73. The vent valve 711, the water valve 721 and the straight discharge valve 731 are all solenoid valves, and are electrically connected to the controller 31.

[0049] During antifreeze, start the gas compressor 71, open the vent valve 711 and the water valve 721, close the water tank valve 32, and let the gas enter the primary filter cartridge 42. A portion of the water in the primary filter cartridge 42 is directly discharged into the water storage tank 2 through the water pipe 72, and the remaining portion and the water inside the final filter cartridge 43 are quickly discharged into the water storage tank 2 under the action of air pressure, thereby reducing the possibility of freezing of the primary filter cartridge 42 and the final filter cartridge 43. At the same time, open the return valve 213 and the direct discharge valve 731, so that the water inside the gas-liquid separation box 21 and the thick film heater 64 are discharged into the main drain pipe 5, thereby reducing the possibility of damage to the heating component 6 and the filter component 4 due to water freezing.

[0050] The implementation principle of an integrated drinking fountain for trains in the present application embodiment is as follows: Fig. 9 Before using water, start the water suction pump 44, and the water from the train water tank 3 enters the primary filter cartridge 42 and the final filter cartridge 43 in sequence to meet the direct drinking standard, and is discharged into the water storage tank 2 through the water suction pump 44 until the water level in the water storage tank 2 reaches the specified height. When drinking hot water, Close the hot water valve 621 and the cold water valve 631, start the water pump 61, and water enters the water inlet box 642 from the water storage tank 2, and passes through the water inlet cylinder 645, the water barrier cylinder 644 and the mounting shell 643 in sequence until the water level in the mounting shell 643 contacts the liquid level electrode 6431. The liquid level electrode 6431 sends an electrical signal to the controller 31, causing the control system to start the heating element 641 to heat the water. Since the water temperature has not reached the threshold value of 90 degrees of the temperature sensor 6432, the return valve 213 is opened, and the water passes through the gas-liquid separation box 21 and the return pipe 212 in sequence and returns to the water inlet box 642 until the water temperature reaches 90 degrees. The hot water valve 621 is opened and the return valve 213 is closed, and the hot water is directly retained from the water outlet 12 for use. When taking water at room temperature, close the hot water valve 621 and open the cold water valve 631, and water is directly discharged from the water storage tank 2 into the water outlet 12 through the cold water pipe 63 to take water at room temperature.

[0051] During antifreeze, close the water tank valve 32, open the vent valve 711, water valve 721, return valve 213 and direct discharge valve 731, start the gas compressor 71, and the gas enters the primary filter cartridge 42. A portion of the water in the primary filter cartridge 42 is directly discharged into the water storage tank 2 through the water pipe 72 under the influence of air pressure. The air pressure pushes the remaining water in the primary filter cartridge 42 to be discharged into the water storage tank 2 together with the water inside the final filter cartridge 43 to empty the filter assembly 4. At the same time, the water inside the gas-liquid separation box 21 and the thick film heater 64 flows into the main drain pipe 5 through the return pipe 212 and the direct discharge pipe 73 in turn to empty the thick film heater 64 and the gas-liquid separation box 21, thereby achieving the effect of antifreeze and anti-blocking of the drinking fountain.

[0052] By providing the hot water pipe 62, the hot water valve 621, the cold water pipe 63 and the cold water valve 631, passengers can select water of corresponding temperature according to actual needs. If warm water is required, a part of both can be used. Compared with the prior art, the water dispenser has an additional water supply temperature function, thereby improving the applicability of the water dispenser.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An integrated drinking fountain for trains, characterized in that: The invention comprises a drinking water seat (1), a water storage tank (2), a heating component (6) and a filtering component (4); the drinking water seat (1) is provided with a water intake area (11), the top of the water intake area (11) is provided with a water outlet (12); the water storage tank (2) is mounted on the drinking water seat (1); the heating component (6) comprises a water pump (61), a hot water pipe (62), a cold water pipe (63) and a thick film heater (64); the water pump (61) is mounted on the drinking water seat (1); the water inlet end of the water pump (61) is connected to the water storage tank (2); The hot water pipe (62) and the cold water pipe (63) are both installed between the water outlet end of the water pump (61) and the water outlet (12); the thick film heater (64) is installed on the hot water pipe (62); the thick film heater (64) is used to heat the water inside the hot water pipe (62); a hot water valve (621) is installed on the hot water pipe (62); a cold water valve (631) is installed on the cold water pipe (63); the filter assembly (4) is installed on the water inlet end of the water storage tank (2); the filter assembly (4) is used to filter impurities in the water.

2. The integrated drinking fountain for trains according to claim 1, characterized in that: The thick film heater (64) includes a heating element (641), a water inlet box (642), a mounting shell (643), a water isolation cylinder (644) and a water inlet cylinder (645). The water inlet box (642) is installed on the water drinking seat (1) and is connected to the hot water pipe (62). The water inlet cylinder (645), the water isolation cylinder (644) and the mounting shell (643) are all installed on the water inlet box (642). The water isolation cylinder (644) is located between the water inlet cylinder (645) and the mounting shell (643). A plurality of drainage holes (6441) are opened on the side wall of the water isolation cylinder (644) near the bottom end. The top end of the mounting shell (643) is connected to the hot water valve (621).

3. The integrated drinking fountain for trains according to claim 2, characterized in that: The water storage tank (2) is installed with a gas-liquid separation box (21) and a steam condensation box (22); a ventilation pipe (211) is connected between the gas-liquid separation box (21), the steam condensation box (22) and the water storage tank (2); the gas-liquid separation box (21) is connected between the top of the installation shell (643) and the hot water valve (621); a main drain pipe (5) is arranged below the water storage tank (2); and the steam condensation box (22) is connected to the main drain pipe (5).

4. The integrated drinking fountain for trains according to claim 3, characterized in that: A liquid level electrode (6431) and a temperature sensor (6432) are installed at the top of the installation shell (643); a return pipe (212) connected to the water inlet box (642) is installed on the gas-liquid separation box (21); a return valve (213) is installed on the return pipe (212); the threshold of the temperature sensor (6432) is set to 90 degrees; a controller (31) is installed on the filter assembly (4); and the liquid level electrode (6431) and the temperature sensor (6432) are both electrically connected to the controller (31).

5. The integrated drinking fountain for trains according to claim 1, characterized in that: A paper box tube (13) is installed on the drinking water seat (1), the bottom end of the paper box tube (13) is open and located in the water intake area (11), the top end of the paper box tube (13) is connected to a sealing cover (132) via a chain, and a plurality of elastic steel sheets (131) are connected to the inner wall of the paper box tube (13).

6. The integrated drinking fountain for trains according to claim 3, characterized in that: A drainage trough (14) is provided at the bottom end of the water intake area (11), a drainage outlet connected to the main drainage pipe (5) is provided at the bottom end of the drainage trough (14), a placement plate (141) is installed at the top end of the drainage trough (14), a plurality of water-permeable grooves are opened on the placement plate (141), a filter residue net (142) is installed in the drainage trough (14), and the filter residue net (142) covers the drainage outlet.

7. The integrated drinking fountain for trains according to claim 4, characterized in that: The filter assembly (4) comprises a filter box (41), a primary filter cartridge (42), a final filter cartridge (43), a water suction pump (44) and a water path element (45); the filter box (41) is arranged below the water storage tank (2); the primary filter cartridge (42), the final filter cartridge (43), the water suction pump (44) and the water path element (45) are all installed in the filter box (41); the primary filter cartridge (42), the final filter cartridge (43) and the water suction pump (44) are all connected to the water path element (45); a train water tank (3) is arranged on one side of the filter box (41); a water inlet end of the water suction pump (44) is connected to the train water tank (3); the controller (31) is connected to the filter box; and the water suction pump (44) is electrically connected to the controller (31).

8. The integrated drinking fountain for trains according to claim 7, characterized in that: The filter assembly (4) is provided with an antifreeze drain assembly (7), the antifreeze drain assembly (7) comprising a gas compressor (71), a water pipe (72) and a straight discharge pipe (73); the gas compressor (71) is provided on one side of the filter box (41); a vent valve (711) is installed at the air outlet of the gas compressor (71); a water tank valve (32) is installed on the train water tank (3); the water pipe (72) is connected between the primary filter cartridge (42) and the water storage tank (2); a water valve (721) is installed on the water pipe (72); the straight discharge pipe (73) is connected between the return pipe (212) and the main drainage pipe (5); a straight discharge valve (731) is installed on the straight discharge pipe (73).

9. The integrated drinking fountain for trains according to claim 4, characterized in that: A magnetron (23) is installed on the water storage tank (2), one end of the magnetron (23) corresponds to the bottom end of the water storage tank (2), and the other end of the magnetron (23) corresponds to the top end of the water storage tank (2), and the magnetron (23) is electrically connected to the controller (31).

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