A recoil valve with emptying function, automatic sewage discharge system and sewage discharge method

Abstract

The present invention is applicable to the field of intelligent electrical appliance technology, and provides a recoil valve with an emptying function, an automatic sewage discharge system and a sewage discharge method. The recoil valve with an emptying function includes a first valve body and a second valve body, wherein a first valve core is disposed in the first valve body, and a second valve core is disposed in the second valve body; a hot inlet, a hot outlet, an air inlet and a first interface are disposed on the first valve body, and a cold outlet, a second interface and a sewage discharge port are disposed on the second valve body; the first interface and the second interface are connected to the cold inlet together; the first valve core is used to adjust the connection state of the hot inlet with the hot outlet, the air inlet and the first interface respectively, and the second valve core is used to adjust the connection state of the cold outlet with the second interface and the sewage discharge port respectively. The recoil valve of the present invention is provided with multiple gears, and users can clean the water heater by themselves.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent electrical appliances, and in particular to a recoil valve with an emptying function, an automatic sewage discharge system and a sewage discharge method. Background Art

[0002] The tap water is heated in the water tank of the electric water heater to produce scale and impurities. Traditionally, the water heater is cleaned manually. After removing the water inlet and outlet pipes, the water tank must be emptied first, and the deposited dirt is flushed back. However, manual cleaning and disconnecting of the water inlet and outlet pipes will cause the joint threads to slip and leak. The more frequently the water tank of the water heater is used, the faster it will scale.

[0003] In the prior art with publication numbers CN219102126U, CN118030892A, and CN118935017A, a recoil valve is disclosed that can make water flow in reverse to clean the water heater. When the water storage tank is full of water, water is poured in from one end and backflowed from the other end for backwashing. However, this recoil valve has certain defects. Although the dirt can be diluted and discharged, a large amount of water is wasted, and the user cannot directly see the concentrated dirt during traditional manual cleaning, which reduces the intuitive viewing experience. Some electric water heaters are provided with a magnesium rod opening for installing a magnesium rod. When the magnesium rod is removed from the magnesium rod opening, the water storage tank of the electric water heater is not in a closed state. When the above-mentioned recoil valve opens the drain switch, the water flow lacks impulse and cannot pull the movable valve core to change the direction of the water flow. Summary of the invention

[0004] The purpose of the embodiment of the present invention is to provide a recoil valve with an emptying function, aiming to solve the problem of cleaning an electric water heater.

[0005] The embodiment of the present invention is implemented as follows: a recoil valve with an emptying function, the recoil valve with an emptying function comprises a first valve body and a second valve body, the first valve body is provided with a first valve core, the second valve body is provided with a second valve core;

[0006] The first valve body is provided with a hot inlet, a hot outlet, an air inlet and a first interface, and the second valve body is provided with a cold outlet, a second interface and a sewage outlet; the first interface and the second interface are connected to the cold inlet;

[0007] The first valve core is used to adjust the connection status between the hot inlet and the hot outlet, the air inlet, and the first interface respectively, and the second valve core is used to adjust the connection status between the cold outlet and the second interface and the sewage outlet respectively.

[0008] Further, in the first gear, the hot inlet is connected to the hot outlet, and the cold outlet is connected to the second interface.

[0009] Further, in the second gear, the hot inlet is connected to the air inlet, and the cold outlet is connected to the sewage outlet.

[0010] Further, in the third gear, the hot inlet is connected to the first interface, and the cold outlet is connected to the sewage outlet.

[0011] Furthermore, the first valve core is connected to a first hand wheel, the second valve core is connected to a second hand wheel, and the first hand wheel is meshed with the second hand wheel through gears.

[0012] Furthermore, the first valve body and the second valve body are of integrated design.

[0013] Another object of an embodiment of the present invention is an automatic sewage discharge system, the automatic sewage discharge system comprising:

[0014] A water storage barrel, wherein a magnesium rod is arranged;

[0015] The recoil valve with emptying function, the hot inlet and the cold outlet are respectively connected to the water storage barrel.

[0016] Furthermore, the automatic sewage discharge system automatic control module comprises:

[0017] A servo motor, used for driving the valve ports of the first valve core and the second valve core to open and close;

[0018] flow sensors to monitor water flow;

[0019] The electronic control mainboard is used to collect flow data from the flow sensor, determine whether cleaning is required, and if necessary, control the servo motor to rotate.

[0020] Furthermore, a cold water inlet reversing valve is arranged between the cold inlet and the hot outlet, and a solenoid valve is arranged to control the air inlet, the reversing valve and the sewage outlet, and the solenoid valve is connected to the electronic control mainboard.

[0021] Another object of an embodiment of the present invention is a sewage discharge method, which is applied to the automatic sewage discharge system, and the sewage discharge method comprises:

[0022] Collect the hot water usage of the flow sensor to determine whether cleaning is needed. If necessary, control the buzzer to sound and send it to the receiving end through the transmitting module to remind the user to remove the magnesium rod for cleaning;

[0023] If the flow exceeds the set flow rate and the user does not turn off the power for cleaning, the servo motor is controlled to adjust the gear positions of the first valve body and the second valve body. The specific adjustment method is as follows:

[0024] Emptying the water storage tank: the hot inlet is connected to the air inlet, and the cold outlet is connected to the sewage outlet;

[0025] Backflow: the hot inlet is connected to the first interface, and the cold outlet is connected to the sewage outlet;

[0026] Downstream water storage: the hot inlet is connected to the hot outlet, and the cold outlet is connected to the second interface.

[0027] A recoil valve with an emptying function provided in an embodiment of the present invention is provided with two levels of sewage discharge. The first valve body is provided with an air inlet, and the air intake discharges concentrated sewage from a water storage barrel, thereby increasing the user's visual intuitive experience. The magnesium rod can be disassembled and washed, and the sewage can also be discharged in reverse flow when the water storage barrel is open. The automatic sewage discharge system is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the recoil valve in the first embodiment when it is in the first gear position;

[0029] Figure 2 It is a structural diagram of the recoil valve in the second gear position in the first embodiment;

[0030] Figure 3 It is a structural diagram of the recoil valve in the first embodiment when it is in the third gear position;

[0031] Figure 4 is a three-dimensional diagram of a recoil valve in the first embodiment;

[0032] Figure 5 A front view of the automatic sewage discharge system in the second embodiment;

[0033] Reference numerals:

[0034] 1. Cold inlet; 2. Cold outlet; 3. Hot inlet; 4. Hot outlet; 5. Air inlet; 6. First interface; 7. Second interface; 8. Drain outlet; 9. First hand wheel; 10. Second hand wheel; 11. Cold water inlet of water heater; 12. Hot water outlet of water heater; 13. Magnesium rod outlet; 14. Water storage tank; 15. First valve body; 16. Second valve body. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] It can be understood that the terms "first", "second", etc. used in the present application can be used in this article to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0037] like Figure 1-4As shown, in the first embodiment, a recoil valve with an emptying function is provided, and the recoil valve with an emptying function comprises a first valve body 15 and a second valve body 16, wherein a first valve core is disposed in the first valve body 15, and a second valve core is disposed in the second valve body 16;

[0038] The first valve body 15 is provided with a hot inlet 3, a hot outlet 4, an air inlet 5 and a first interface 6, and the second valve body 16 is provided with a cold outlet 2, a second interface 7 and a sewage outlet 8; the first interface 6 and the second interface 7 are connected to the cold inlet 1;

[0039] The first valve core is used to adjust the connection status between the hot inlet 3 and the hot outlet 4, the air inlet 5, and the first interface 6 respectively, and the second valve core is used to adjust the connection status between the cold outlet 2 and the second interface 7 and the sewage outlet 8 respectively.

[0040] In this embodiment, the first valve body 15 and the second valve body 16 can be a split structure or an integrated structure. The first valve core and the second valve core are a universal three-speed water-dividing valve core structure, and the second valve core can also select a two-speed valve core. Both the first valve core and the second valve core belong to the known technology, such as the valve core of the water divider (divided to different outlets) of the hot and cold water mixing valve for shower. The first valve core has three adjustable gears, which respectively connect the hot inlet 3 and the hot outlet 4, the air inlet 5, and the first interface 6. The second valve core is adjusted synchronously to achieve different functions. There are three functions, as follows:

[0041] Downstream water storage function: Figure 1 As shown, in the first gear, the hot inlet 3 is connected to the hot outlet 4 , and the cold outlet 2 is connected to the second interface 7 .

[0042] Empty water tank function: Figure 2 As shown, in the second gear, the hot inlet 3 is connected to the air inlet 5 , and the cold outlet 2 is connected to the sewage outlet 8 .

[0043] Backflow function: Figure 3 As shown, in the third gear, the hot inlet 3 is connected to the first interface 6 , and the cold outlet 2 is connected to the sewage outlet 8 .

[0044] In this embodiment, preferably, the first valve core is connected to the first hand wheel 9, the second valve core is connected to the second hand wheel 10, and the first hand wheel 9 and the second hand wheel 10 are meshed through gears. The first valve body 15 and the second valve body 16 are of an integrated design. The first hand wheel 9 cooperates with the second hand wheel 10 to achieve synchronous control of the first valve core and the second valve core; wherein, the first hand wheel 9 or the second hand wheel 10 can be used as a rotating wheel, and the other as a driven wheel. The first valve body 15 and the second valve body 16 are of an integrated design, and the first valve body 15 and the second valve body 16 do not need to be additionally installed and docked, which can avoid the matching error between the first hand wheel 9 and the second hand wheel 10.

[0045] In this embodiment, by adjusting different gears, the user can clean the water heater by himself. There are two gears for sewage discharge, one is to empty the water storage tank, and the other is to backflow and recoil. The first valve body 15 is provided with an air inlet 5, and the air intake discharges the concentrated sewage from the water storage tank, which increases the visual intuitive experience of the user, and the magnesium rod can be disassembled and washed. The water storage tank can also be opened to discharge sewage in the backflow state. The automatic sewage discharge system is convenient and practical.

[0046] In a second embodiment, an automatic sewage discharge system is provided, the automatic sewage discharge system comprising:

[0047] A water storage barrel 14, in which a magnesium rod is arranged;

[0048] In the recoil valve with emptying function of the first embodiment, the hot inlet 3 and the cold outlet 2 are connected to the water storage barrel 14 respectively.

[0049] The automatic sewage discharge system automatic control module comprises:

[0050] A servo motor, used for driving the valve ports of the first valve core and the second valve core to open and close;

[0051] flow sensors to monitor water flow;

[0052] The electronic control mainboard is used to collect flow data from the flow sensor, determine whether cleaning is required, and if necessary, control the servo motor to rotate.

[0053] A cold water inlet reversing valve is arranged between the cold inlet 1 and the hot outlet 4, and a solenoid valve is arranged to control the air inlet 5, the reversing valve and the sewage outlet 8, and the solenoid valve is connected to the electronic control mainboard.

[0054] In this embodiment, if Figure 5 As shown, the cold inlet 1 of the recoil valve is connected to the cold water pipe, the hot outlet 4 is connected to the hot water pipe, the cold outlet 2 is connected to the cold water inlet 11 of the water heater, the hot inlet 3 is connected to the hot water outlet 12 of the water heater, and the sewage outlet 8 is connected to the sewage pipe. The air inlet 5 is a normally open air inlet directly connected to the valve core from the base.

[0055] This embodiment provides three-gear connection modes:

[0056] First, as Figure 1 and 5 As shown, the first hand wheel 9 and the second hand wheel 10 are linked to the first gear: the water flows through the cold inlet 1, the second interface 7, the cold outlet 2, the water heater cold water inlet 11, the water heater hot water outlet 12, the hot inlet 3, and the hot outlet 4 in sequence to form a positive water flow loop.

[0057] Second, if Figure 2 and 5 As shown, the first hand wheel 9 is in the second gear: air enters the water storage barrel 14 from the normally open air inlet 5 and the hot water outlet 12 of the water heater, and the water in the water storage barrel 14 is emptied from the cold water inlet 11 of the water heater and the drain outlet 8 under the action of gravity. Remove the magnesium rod, air enters the water storage barrel 14 from the air inlet 5 and the hot water outlet 12 of the water heater, and the water in the water storage barrel 14 is emptied from the cold water inlet 11 of the water heater and the drain outlet 8 and the magnesium rod outlet 13 of the water heater at the same time under the action of gravity.

[0058] Third, if Figure 3 and 5 As shown, the first hand wheel 9 is in the third gear: the water flows through the cold inlet 1, the first interface 6, the hot inlet 3, the hot water outlet 12 of the water heater, the cold water inlet 11 of the water heater, the cold outlet 2, the sewage outlet 8, and the sewage pipe to form a reverse water flow loop, and the sewage is discharged from the sewage outlet 8. At this time, the magnesium rod is removed, and tap water enters from the cold inlet 1, the first interface 6, the hot inlet 3, and the hot water outlet 12 of the water heater, and the magnesium rod port 13 of the water heater and the sewage outlet 8 form a reverse water flow loop, and the sewage is discharged from the sewage outlet 8 and the magnesium rod port 13 of the water heater at the same time.

[0059] In this embodiment, refer to Figure 5 , the second interface 7 of the second valve body 16 is connected to the safety valve, and the safety valve is connected to the first interface 6; or the cold inlet 1 is connected to the safety valve, and the safety valve is connected to the cold water pipe. The servo motor is installed at the transmission wheel, the flow sensor and the temperature sensor are installed at the hot outlet 4 of the sewage outlet 8, and the servo motor sensor is electrically connected to the electronic control main board. The electronic control main board is provided with a transmitting module and a buzzer.

[0060] In this embodiment, a preset value of hot water usage at the hot outlet 4 is preset and needs to be cleaned. When the flow sensor collected by the electronic control mainboard determines that cleaning is required, a buzzer sounds and sends it to the receiving end (mobile phone) through the transmitting module to remind the user to remove the magnesium rod for cleaning. When the user does not have (power off) when the set flow rate is exceeded, the automatic cleaning function is activated, and the servo motor starts to rotate the first hand wheel 9 in the second gear; when the flow sensor of the sewage outlet 8 determines that it is empty, the servo motor of the transmission wheel rotates the first hand wheel 9 in the third gear; when the water flow sensor of the sewage outlet 8 transmits a signal to the electronic control mainboard to reach the reserved value of the cleaning water volume, the servo motor of the transmission wheel rotates the first hand wheel 9 to reset to the first gear, so that the water flow returns to the forward flow.

[0061] When the user (mobile phone) receives a reminder to remove the magnesium rod for manual cleaning, the user manually removes the magnesium rod, rotates the first hand wheel 9 to the second position, and air enters the water storage barrel 14 from the air inlet 5 and the water heater hot water outlet 12, and the water in the water storage barrel 14 is emptied from the water heater magnesium rod port 13; then the first hand wheel 9 is rotated to the third gear, and the cold inlet 1 water flows from the first interface 6, the hot inlet 3, and the water heater hot water outlet 12 into the water storage barrel 14 in reverse, and then is discharged through the magnesium rod port 13 The sewage outlet 8 is manually cleaned.

[0062] The recoil valve of this embodiment can also be integrated with the electric water heater: an air inlet (air inlet 5) is set at the hot water outlet position, a drain hole (drain hole 8) is set at the cold water inlet position, a cold water inlet reversing valve is set between the cold water inlet and the hot water outlet (the first interface 6 and the second interface 7 of the cold inlet 1 reverse the flow), a solenoid valve is set to control the air inlet, the reversing valve and the drain hole, the solenoid valve is connected to the water heater electronic control mainboard, and the electronic control mainboard is automatically cleaned according to the values ​​of the flow sensor and the like.

[0063] In a third embodiment, a sewage discharge method is provided. The sewage discharge method is applied to the automatic sewage discharge system described in the second embodiment. The sewage discharge method includes:

[0064] Collect the hot water usage of the flow sensor to determine whether cleaning is needed. If necessary, control the buzzer to sound and send it to the receiving end through the transmitting module to remind the user to remove the magnesium rod for cleaning;

[0065] If the flow exceeds the set flow rate and the user does not turn off the power for cleaning, the servo motor is controlled to adjust the gear positions of the first valve body 15 and the second valve body 16. The specific adjustment method is as follows:

[0066] Emptying the water storage tank: the hot inlet 3 is connected to the air inlet 5, and the cold outlet 2 is connected to the sewage outlet 8;

[0067] Backflow: the hot inlet 3 is connected to the first interface 6, and the cold outlet 2 is connected to the sewage outlet 8;

[0068] Downstream water storage: the hot inlet 3 is connected to the hot outlet 4 , and the cold outlet 2 is connected to the second interface 7 .

[0069] The sewage discharge method in this embodiment has been described in the second embodiment and will not be repeated here.

[0070] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, if the first hand wheel 9 and the second hand wheel 10 are operated by lever linkage or independent hand wheels respectively to operate the first valve body 15 and the second valve body 16 of this case by adopting the principle of the present invention, other deformations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A recoil valve with an emptying function, characterized in that: The recoil valve with an emptying function comprises a first valve body and a second valve body, wherein a first valve core is disposed in the first valve body, and a second valve core is disposed in the second valve body; The first valve body is provided with a hot inlet, a hot outlet, an air inlet and a first interface, and the second valve body is provided with a cold outlet, a second interface and a sewage outlet; The first interface and the second interface are connected to a cold inlet; The first valve core is used to adjust the communication state between the hot inlet and the hot outlet, the air inlet, and the first interface respectively, and the second valve core is used to adjust the communication state between the cold outlet and the second interface and the sewage outlet respectively; In the second gear, the hot inlet is connected to the air inlet, and the cold outlet is connected to the sewage outlet; In the third gear, the hot inlet is connected to the first interface, and the cold outlet is connected to the sewage outlet.

2. The recoil valve with emptying function according to claim 1, characterized in that: In the first gear, the hot inlet is connected to the hot outlet, and the cold outlet is connected to the second interface.

3. The recoil valve with emptying function according to claim 1, characterized in that: The first valve core is connected to a first hand wheel, the second valve core is connected to a second hand wheel, and the first hand wheel is meshed with the second hand wheel through gears.

4. The recoil valve with emptying function according to claim 3, characterized in that: The first valve body and the second valve body are of integrated design.

5. An automatic sewage discharge system, characterized in that: The automatic sewage discharge system comprises: A water storage barrel, wherein a magnesium rod is arranged; The recoil valve with emptying function described in any one of claims 1-4, wherein the hot inlet and the cold outlet are respectively connected to the water storage barrel.

6. The automatic sewage discharge system according to claim 5, characterized in that: The automatic sewage discharge system automatic control module comprises: A servo motor, used for driving the valve ports of the first valve core and the second valve core to open and close; flow sensors to monitor water flow; The electronic control mainboard is used to collect flow data from the flow sensor, determine whether cleaning is required, and if necessary, control the servo motor to rotate.

7. The automatic sewage discharge system according to claim 6, characterized in that: A cold water inlet reversing valve is arranged between the cold inlet and the hot outlet, and a solenoid valve is arranged to control the air inlet, the reversing valve and the sewage outlet, and the solenoid valve is connected to the electronic control mainboard.

8. A sewage discharge method, characterized in that: The sewage discharge method is applied to the automatic sewage discharge system according to claim 6, and the sewage discharge method comprises: Collect the hot water usage of the flow sensor to determine whether cleaning is needed. If necessary, control the buzzer to sound and send it to the receiving end through the transmitting module to remind the user to remove the magnesium rod for cleaning; If the flow exceeds the set flow rate and the user does not turn off the power for cleaning, the servo motor is controlled to adjust the gear positions of the first valve body and the second valve body. The specific adjustment method is as follows: Emptying the water storage tank: the hot inlet is connected to the air inlet, and the cold outlet is connected to the sewage outlet; Backflow: the hot inlet is connected to the first interface, and the cold outlet is connected to the sewage outlet; Downstream water storage: the hot inlet is connected to the hot outlet, and the cold outlet is connected to the second interface.

Images