Water purifying and sterilizing device for washing machine

Abstract

The water purifying and sterilizing device comprises the washing machine, a mounting cavity is formed in the rear side of the washing machine, and a water inlet pipe connected with the washing machine is mounted in the mounting cavity; a water purification and sterilization assembly; the water purification and sterilization assembly is installed in the installation cavity and connected with the water inlet pipe, the water purification and sterilization assembly comprises a purification box which is installed in the installation cavity and can move in a reciprocating mode, and a purification mechanism for filtering water is installed in the purification box; when the washing machine is used for dewatering clothes, the purifying box drives the filtering mechanism to move in a reciprocating mode, and the filtering mechanism is backwashed and discharged. According to the washing machine, multiple times of mild self-cleaning of the filter screen can be achieved, the filter screen can be effectively cleaned when the washing machine is used for dewatering, the defect that regular replacement is needed when the washing machine is used for a long time in the prior art is overcome, it can be guaranteed that the water inlet amount used by the washing machine every time is stable, and clean water in conveying can be sterilized.

Description

Technical Field

[0001] The invention relates to the technical field of water filtration and treatment, and in particular to a water purification and sterilization device for a washing machine. Background Art

[0002] A washing machine is a cleaning appliance that uses electrical energy to create mechanical action to wash clothes. It is divided into two categories: household and collective use according to its rated washing capacity.

[0003] When the washing machine is in use, the water inlet pipe is directly connected to the faucet, and automatic water supply can be achieved through the automatic control system inside the washing machine. However, few existing washing machines have the function of filtering tap water. Some washing machines are also equipped with a filtering device at the interface connected to the external water pipe. Although it can filter the water, the filtering device will become clogged as the use time increases, resulting in a decrease in the water intake of the washing machine per unit time. The user needs to clean and replace the device regularly, which is inconvenient to use. For this reason, the present application proposes a water purification and sterilization device for a washing machine. Summary of the invention

[0004] The purpose of the present invention is to solve the above technical problems and to propose a water purification and sterilization device for a washing machine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A water purification and sterilization device for a washing machine, comprising a washing machine, wherein a mounting cavity is mounted on the rear side of the washing machine, and a water inlet pipe connected to the washing machine is mounted in the mounting cavity;

[0007] A water purification and sterilization component; the water purification and sterilization component is installed in the installation cavity and connected to the water inlet pipe, the water inlet sterilization component includes a purification box installed in the installation cavity and capable of reciprocating movement, and a purification mechanism for filtering water is installed in the purification box;

[0008] A silver ion generator, wherein the silver ion generator cooperates with a purification mechanism to mix the silver ions produced by the silver ion generator with water to sterilize the water;

[0009] When the washing machine is dehydrating clothes, the purification box drives the filter mechanism to move back and forth, backwashes the filter mechanism and discharges it.

[0010] Preferably, two positioning blocks are fixedly connected to the inner top of the installation cavity, and the two positioning blocks are respectively penetrated by a short water inlet pipe and a short water outlet pipe which are slidably connected thereto, and the short water inlet pipe and the short water outlet pipe penetrate the purification box and are fixedly connected thereto, and a circular plate which can rotate with the operation of the washing machine is installed in the installation cavity, and a connecting rod is hingedly connected to the circular plate, and the connecting rod is hingedly connected to the purification box.

[0011] Preferably, a reduction gear box connected to the washing machine is installed in the installation cavity, the reduction gear box is fixed on the transmission box, the transmission box is provided with a first shaft rod rotatably connected to the first shaft rod, the first shaft rod is fixedly connected to the shaft end of the reduction gear box, the first shaft rod is fixedly connected to the first connecting plate, the first connecting plate is provided with a mounting groove, the inner bottom of the mounting groove is fixedly connected to an electromagnet, a spring is fixed on the electromagnet, a magnetic block sliding between the mounting groove is fixed on the spring, the magnetic block and the electromagnet have the same magnetic poles on opposite surfaces, a locking column sliding in the mounting groove is fixed on the magnetic block, a connecting column is coaxially rotatably connected to the first connecting plate, a coaxially arranged second connecting plate is fixedly connected to the connecting column, a plurality of locking grooves are provided at the bottom of the second connecting plate, the plurality of locking grooves are distributed in an annular manner, and the locking column and the locking groove are located on the same circumference, an upper cover is fixed on the transmission box, a second shaft rod rotatably arranged is penetrated on the upper cover, and the second shaft rod is coaxially fixedly connected to the circular plate.

[0012] Preferably, it also includes a pipeline mechanism, which includes a first hose and a second hose respectively connected to the water inlet short pipe and the water outlet short pipe, the first hose is fixedly connected to the water inlet pipe, and the water inlet pipe is installed with a first solenoid valve, the second hose is connected to the water inlet pipe, and the water inlet pipe is installed with a backflush pipe, the other end of the backflush pipe is connected to the purification box and is arranged close to the water outlet short pipe, and the backflush pipe is installed with a second solenoid valve, a sewage pipe is installed at the bottom of the water inlet short pipe, the sewage pipe is installed with a third solenoid valve, and the water outlet short pipe is installed with a fourth solenoid valve.

[0013] Preferably, a blocking plate is installed on the washing machine, and a first through hole and a second through hole are penetrated on the blocking plate, and the water inlet pipe and the sewage discharge pipe are respectively penetrated through the first through hole and the second through hole.

[0014] Preferably, the first solenoid valve and the fourth solenoid valve are opened and closed at the same time.

[0015] Preferably, the second solenoid valve and the third solenoid valve are opened and closed at the same time.

[0016] Preferably, the purification mechanism includes a plurality of mixed porous guide plates fixed on the inner wall of the purification box, the length direction of the mixed porous guide plates is arranged relative to the axial direction of the water inlet short pipe and the water outlet short pipe, and a filter is fixedly connected to the mixed porous guide plates and the purification box, and the filter is arranged at an angle.

[0017] Preferably, an ultraviolet disinfection lamp is installed at the inner bottom of the purification box, and the ultraviolet disinfection lamp is arranged opposite to the mixing porous guide plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Tap water is transported to the purification box through the first hose and the water inlet short pipe. The flowing clean water drives the silver ion generator to work and release silver ions to flow together. When the flowing clean water and silver ions pass through the mixing porous guide plate, they will be divided into different flow channels. Since the mixing porous guide plate is multi-bend, the clean water and silver ions in each flow channel can flow in multiple directions. When flowing to the bend, due to the inertia of the water flow, it will flow through the mixing porous guide plate to another flow channel. In this way, the clean water and silver ions can be effectively and efficiently mixed, and the water can be sterilized.

[0020] 2. Since the filter is set at an angle and the washing machine works intermittently, when water flows through the clean water tank again, the clean water will impact the filter, and the filter can be impacted to the part where the filter is connected to the purification tank and the mixing porous guide plate, so that the filter can be cleaned. That is to say, when the washing machine is working, the filter will be simply rinsed and cleaned every time water is delivered to avoid serious accumulation of particles filtered by the filter, which makes it difficult to clean later.

[0021] 3. The electromagnet is energized to generate magnetism, which can drive the magnetic block and the lock column to move. At this time, the lock column is at a low level with the bottom of the second connecting disk, and the spring is compressed. The rotation of the first connecting disk drives the lock column to rotate. When the lock column is relative to the lock slot, the elastic force of the spring is released to make the lock column stuck in the lock slot. In this way, the rotation of the first connecting disk can drive the second connecting disk to rotate.

[0022] 4. After water enters the water inlet pipe, it flows to the other side of the filter through the backwash pipe, and finally backwashes the filter through the other side of the filter.

[0023] 5. The rotation of the second connecting plate drives the second shaft rod to rotate, the rotation of the second shaft rod drives the circular plate to rotate, the rotation of the circular plate drives the connecting rod to rotate, and then drives the purification box to move back and forth. As the water in the purification box increases and the purification box moves back and forth, the clean water in the purification box shakes back and forth, further increasing the recoil effect on the filter.

[0024] In summary, the present invention can achieve multiple mild self-cleaning of the filter, and can effectively clean the filter when the washing machine is dehydrating, avoiding the disadvantage of the prior art that long-term use requires regular replacement. It can also ensure that the water intake of the washing machine is stable each time it is used, and can sterilize the clean water in transit. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a water purification and sterilization device for a washing machine proposed in Example 1;

[0026] Figure 2 This is a rear view of a water purification and sterilization device for a washing machine proposed in Example 1;

[0027] Figure 3 This is a schematic diagram of removing a blocking plate from a washing machine water purification and sterilization device proposed in Example 1;

[0028] Figure 4 This is a schematic structural diagram of a water purification and sterilization component in a water purification and sterilization device for a washing machine proposed in Example 1;

[0029] Figure 5 This is a schematic structural diagram of a circular plate in a water purification and sterilization device for a washing machine proposed in Example 1;

[0030] Figure 6 This is a schematic structural diagram of a transmission box in a water purification and sterilization device for a washing machine proposed in Example 1;

[0031] Figure 7 This is a disassembled bottom view of a transmission box in a water purification and sterilization device for a washing machine proposed in Example 1;

[0032] Figure 8 This is a schematic diagram of the disassembly of a transmission box in a water purification and sterilization device for a washing machine proposed in Example 1;

[0033] Fig. 9 This is a schematic structural diagram of a water purification and sterilization device for a washing machine proposed in Example 2.

[0034] In the figure: 1 washing machine, 2 blocking plate, 3 water inlet pipe, 4 sewage pipe, 5 installation cavity, 6 purification box, 7 mixed porous guide plate, 8 filter screen, 9 recoil pipe, 10 first solenoid valve, 11 third solenoid valve, 12 first hose, 13 water inlet short pipe, 14 second solenoid valve, 15 water inlet pipe, 16 second hose, 17 fourth solenoid valve, 18 water outlet short pipe, 19 positioning block, 20 reduction box, 21 round plate, 22 transmission box, 23 connecting rod, 24 second shaft rod, 25 first shaft rod, 26 upper cover, 27 first connecting plate, 28 second connecting plate, 29 locking groove, 30 connecting column, 31 installation groove, 32 locking column, 33 electromagnet, 34 magnetic block, 35 spring, 36 silver ion generator, 37 ultraviolet disinfection lamp. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Example 1

[0037] Reference Figure 1-Figure 8 , a water purification and sterilization device for a washing machine, comprising a washing machine 1, a mounting cavity 5 is mounted on the rear side of the washing machine 1, and a water inlet pipe 15 connected to the washing machine 1 is mounted in the mounting cavity 5;

[0038] Water purification and sterilization component; the water purification and sterilization component is installed in the installation cavity 5 and is connected to the water inlet pipe 15. The water inlet sterilization component includes a purification box 6 installed in the installation cavity 5 and capable of reciprocating movement. Two positioning blocks 19 are fixedly connected to the inner top of the installation cavity 5. The two positioning blocks 19 are respectively penetrated by a water inlet short pipe 13 and a water outlet short pipe 18 which are slidably connected thereto. The water inlet short pipe 13 and the water outlet short pipe 18 penetrate the purification box 6 and are fixedly connected thereto. A circular plate 21 that can rotate with the operation of the washing machine 1 is installed in the installation cavity 5. A connecting rod 23 is hingedly connected to the circular plate 21. The connecting rod 23 is hingedly connected to the purification box 6. The rotation of the circular plate 21 drives the connecting rod 23 to move, thereby driving the purification box 6 to reciprocate.

[0039] A reduction gearbox 20 connected to the washing machine 1 is installed in the installation cavity 5. A transmission rod can be installed on the other shaft end of the reduction gearbox 20. The transmission rod is connected to the output end of the motor on the washing machine 1 through gear meshing or transmission wheel and transmission belt cooperation, so that the motor is used as a power source when the washing machine 1 is working.

[0040] A transmission box 22 is fixed on the reduction box 20. A first shaft rod 25 rotatably connected to the transmission box 22 is passed through the transmission box 22. The first shaft rod 25 is fixedly connected to the shaft end of the reduction box 20. A first connecting plate 27 is fixedly connected to the first shaft rod 25. A mounting groove 31 is provided on the first connecting plate 27. An electromagnet 33 is fixedly connected to the inner bottom of the mounting groove 31. A spring 35 is fixed on the electromagnet 33. A magnetic block 34 sliding between the mounting groove 31 is fixed on the spring 35. The magnetic poles of the opposite surfaces of the magnetic block 34 and the electromagnet 33 are the same. The repulsive force between the magnetic block 34 and the electromagnet 33 is greater than the elastic force of the spring 35.

[0041] A lock column 32 sliding in the mounting groove 31 is fixed on the magnetic block 34, a connecting column 30 is coaxially rotatably connected to the first connecting disk 27, a coaxially arranged second connecting disk 28 is fixedly connected to the connecting column 30, a plurality of lock grooves 29 are arranged at the bottom of the second connecting disk 28, the plurality of lock grooves 29 are distributed in a ring shape, and the lock column 32 and the lock grooves 29 are located on the same circumference, an upper cover 26 is fixed on the transmission box 22, a second shaft rod 24 rotatably arranged is penetrated through the upper cover 26, and the second shaft rod 24 is coaxially fixedly connected to the circular plate 21.

[0042] It also includes a pipeline mechanism, which includes a first hose 12 and a second hose 16 respectively connected to the water inlet short pipe 13 and the water outlet short pipe 18, the first hose 12 is fixedly connected to the water inlet pipe 3, the water inlet pipe 3 is installed with a first solenoid valve 10, the second hose 16 is connected to the water inlet pipe 15, the water inlet pipe 3 is installed with a recoil pipe 9, the other end of the recoil pipe 9 is connected to the purification box 6 and is arranged close to the water outlet short pipe 18, the recoil pipe 9 is installed with a second solenoid valve 14, and a sewage pipe 4 is installed at the bottom of the water inlet short pipe 13, wherein a blocking plate 2 is installed on the washing machine 1, the blocking plate 2 is penetrated with a first through hole and a second through hole, the water inlet pipe 3 and the sewage pipe 4 are respectively penetrated by the first through hole and the second through hole.

[0043] The third solenoid valve 11 is installed on the sewage pipe 4, and the fourth solenoid valve 17 is installed on the water outlet short pipe 18. The first solenoid valve 10 and the fourth solenoid valve 17 are opened and closed at the same time, and the second solenoid valve 14 and the third solenoid valve 11 are opened and closed at the same time.

[0044] A purification mechanism for filtering water is installed in the purification box 6, and the purification mechanism includes a plurality of mixed porous guide plates 7 fixed to the inner wall of the purification box 6. The length direction of the mixed porous guide plates 7 is arranged relative to the axial direction of the water inlet short pipe 13 and the water outlet short pipe 18. A filter screen 8 is fixedly connected to the mixed porous guide plates 7 and the purification box 6, and the filter screen 8 is arranged at an angle.

[0045] A silver ion generator 36, which cooperates with the purification mechanism to mix the silver ions produced by the silver ion generator 36 with water to sterilize the water;

[0046] When the washing machine 1 is dehydrating the clothes, the purification box 6 drives the filter mechanism to move back and forth, backwashes the filter mechanism and discharges the water.

[0047] When the present invention is used, the water inlet pipe 3 is connected to the faucet, and the washing machine 1 is turned on. At this time, the first solenoid valve 10 and the fourth solenoid valve 17 are in an open state, the second solenoid valve 14 and the third solenoid valve 11 are in a closed state, and the silver ion generator 36 works to release silver ions;

[0048] The tap water is transported to the purification box 6 through the first hose 12 and the water inlet short pipe 13. The flowing clean water drives the silver ion generator 36 to work and release silver ions to flow together. When the flowing clean water and the silver ions pass through the mixing porous guide plate 7, they are divided into different flow channels, and each flow channel is connected through the holes on the mixing porous guide plate 7, such as Figure 4As shown, the mixing porous guide plate 7 is in a multi-bend shape, so that the clean water and silver ions in each flow channel can flow in multiple directions. When flowing to the bend, the water will flow to another flow channel through the mixing porous guide plate 7 due to the inertia of the water flow, so that the clean water and the silver ions can be effectively and efficiently mixed; silver ions have a broad-spectrum bactericidal effect and can destroy the cell wall of bacteria, thereby achieving a bactericidal effect, and the advantage of silver ion bactericidal is that it is long-lasting and harmless to clothes;

[0049] When the flowing clean water passes through the filter 8, the particles in the clean water can be filtered through the filter 8. Since the filter 8 is arranged at an angle and the washing machine 1 works intermittently, when water flows through the purification box 6 again, the clean water will impact the filter 8, and the filter 8 can be impacted to the part where the filter 8 is connected to the purification box 6 and the mixed porous guide plate 7, so that the filter 8 can be cleaned. That is to say, when the washing machine 1 is working, the filter 8 will be simply rinsed and cleaned every time water is delivered, so as to avoid the serious accumulation of particles filtered by the filter 8 and difficult to be cleaned later;

[0050] Finally, the filtered and sterilized clean water is transported to the washing machine 1 through the water outlet short pipe 18, the second hose 16 and the water inlet pipe 15 for use in washing clothes;

[0051] When the washing machine 1 is working, the reduction box 20 and the first shaft 25 are driven to rotate, and the rotation of the first shaft 25 drives the first connecting plate 27 to rotate. Since there is no connection between the first connecting plate 27 and the second connecting plate 28, the first connecting plate 27 is in an idling state at this time.

[0052] When the washing machine 1 is dehydrating the clothes, there is no need to supply water to the washing machine 1. At this time, the first solenoid valve 10, the fourth solenoid valve 17, and the silver ion generator 36 are in the closed state, the second solenoid valve 14 and the third solenoid valve 11 are in the open state, and the electromagnet 33 is energized. The electromagnet 33 is energized to generate magnetism, which can drive the magnetic block 34 and the lock column 32 to move. At this time, the lock column 32 is low in contact with the bottom of the second connecting disk 28, and the spring 35 is compressed. The rotation of the first connecting disk 27 drives the lock column 32 to rotate. When the lock column 32 is opposite to the lock groove 29, the elastic force of the spring 35 is released so that the lock column 32 is stuck in the lock groove 29. In this way, the rotation of the first connecting disk 27 can drive the second connecting disk 28 to rotate, and the rotation of the second connecting disk 28 drives the second shaft rod 24 to rotate. The rotation of the second shaft rod 24 drives the circular plate 21 to rotate, and the rotation of the circular plate 21 drives the connecting rod 23 to rotate, thereby driving the purification box 6 to reciprocate.

[0053] Since the faucet is in a normally open state, water flows into the water inlet pipe 3 through the backwash pipe 9 to the other side of the filter 8, and finally backwashes the filter 8 through the other side of the filter 8. As the water in the purification box 6 increases and the purification box 6 moves back and forth, the clean water in the purification box 6 shakes back and forth, further increasing the backwash effect on the filter 8.

[0054] The sewage generated by backwashing enters the sewage pipe 4 through the water inlet short pipe 13 and is discharged. It can be connected to the drain pipe on the washing machine 1 to discharge the sewage, thereby achieving self-cleaning of the filter 8, avoiding the disadvantage of the prior art that long-term use requires regular replacement, and also ensuring that the water intake of the washing machine 1 is stable each time it is used.

[0055] The above-mentioned control of the multiple solenoid valves and the control of the electromagnet 33 etc. can be realized by PLC technology.

[0056] Example 2

[0057] Reference Fig. 9 , the difference between this embodiment and embodiment 1 is that an ultraviolet disinfection lamp 37 is installed at the inner bottom of the purification box 6 in this embodiment, and the ultraviolet disinfection lamp 37 is arranged opposite to the mixing porous guide plate 7;

[0058] Further explanation of ultraviolet disinfection lamp 37:

[0059] 1. Bactericidal effect of ultraviolet rays

[0060] UV-A band (320-400 nanometers): Ultraviolet radiation in this band can break the DNA or RNA single strands of bacteria, viruses and other microorganisms, causing genetic material mutations, thereby achieving the purpose of sterilization and disinfection. However, compared with the UV-C band, its sterilization effect may be weaker.

[0061] UV-B band (280-320 nanometers): Ultraviolet radiation in this band can destroy the nucleic acid of microorganisms, causing them to lose their ability to replicate, thereby achieving a disinfection effect.

[0062] UV-C band (200-280 nanometers): This band of ultraviolet radiation has the strongest bactericidal ability. It can not only destroy the nucleic acid of microorganisms, but also destroy their protein structure, making microorganisms lose their ability to survive, thereby achieving the purpose of killing bacteria, viruses and other microorganisms. In water treatment, the commonly used ultraviolet disinfection lamp mainly radiates ultraviolet rays in the UV-C band.

[0063] 2. Working mechanism of ultraviolet disinfection lamp

[0064] Ultraviolet disinfection lamps, also known as ultraviolet germicidal lamps, mainly use ultraviolet rays emitted by mercury lamps to achieve sterilization and disinfection functions. When the ultraviolet disinfection lamp is working, it radiates short-wave sterilization ultraviolet rays with a wavelength of 253.7 nanometers (belonging to the UV-C band). Ultraviolet rays of this wavelength can penetrate the cell walls and cell membranes of microorganisms and directly act on their DNA or RNA, destroying the molecular structure of their genetic material, making it unable to replicate and survive normally, thereby achieving a sterilization effect.

[0065] 3. Application of ultraviolet disinfection lamps in water treatment

[0066] In the field of water treatment, ultraviolet disinfection lamps are mainly used in two methods: immersion and flow-through. The immersion method is to put the ultraviolet disinfection lamp directly into the water; while the flow-through method is to put the ultraviolet lamp into a sleeve, and the water flows through the outer periphery of the sleeve and is irradiated by ultraviolet rays to achieve the purpose of disinfection. The flow-through method is more commonly used because of its fast water flow speed and large processing capacity, so it is suitable to be installed in the purification box 6 to treat water.

[0067] 4. Advantages of UV Disinfection Lamp

[0068] Highly efficient sterilization: Ultraviolet disinfection lamps can quickly kill bacteria, viruses and other microorganisms in water in a short period of time, and the sterilization rate can generally reach more than 99.99%.

[0069] Environmentally friendly and pollution-free: Compared with chemical disinfection methods, ultraviolet disinfection does not produce secondary pollution and has no negative impact on water quality.

[0070] Low operating costs: The UV disinfection lamp only needs to replace and clean the sleeve regularly, and the maintenance cost is relatively low.

[0071] To sum up, ultraviolet disinfection lamps achieve a sterilization effect by radiating ultraviolet rays in the UV-C band to destroy the genetic material structure of microorganisms.

[0072] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water purification and sterilization device for a washing machine, comprising a washing machine (1), It is characterized in that The washing machine (1) is provided with an installation cavity (5) at the rear side thereof, and a water inlet pipe (15) connected to the washing machine (1) is installed in the installation cavity (5); A water purification and sterilization component; the water purification and sterilization component is installed in the installation cavity (5) and connected to the water inlet pipe (15); the water inlet sterilization component comprises a purification box (6) installed in the installation cavity (5) and capable of reciprocating movement; a purification mechanism for filtering water is installed in the purification box (6); A silver ion generator (36), wherein the silver ion generator (36) cooperates with a purification mechanism to mix silver ions produced by the silver ion generator (36) with water to sterilize the water; When the washing machine (1) is dehydrating clothes, the purification box (6) drives the filter mechanism to move back and forth, backwashes the filter mechanism and discharges the water.

2. A water purification and sterilization device for a washing machine according to claim 1, It is characterized in that Two positioning blocks (19) are fixedly connected to the inner top of the installation cavity (5); a water inlet short pipe (13) and a water outlet short pipe (18) are respectively penetrated by the two positioning blocks (19) and are slidably connected thereto; the water inlet short pipe (13) and the water outlet short pipe (18) penetrate the purification box (6) and are fixedly connected thereto; a circular plate (21) capable of rotating with the operation of the washing machine (1) is installed in the installation cavity (5); a connecting rod (23) is hingedly connected to the circular plate (21); and the connecting rod (23) is hingedly connected to the purification box (6).

3. A water purification and sterilization device for a washing machine according to claim 1, It is characterized in that A reduction box (20) connected to the washing machine (1) is installed in the installation cavity (5), a transmission box (22) is fixed on the reduction box (20), a first shaft (25) rotatably connected to the transmission box (22) is passed through the transmission box (22), the first shaft (25) is fixedly connected to the shaft end of the reduction box (20), a first connecting plate (27) is fixedly connected to the first shaft (25), a mounting groove (31) is provided on the first connecting plate (27), an electromagnet (33) is fixedly connected to the inner bottom of the mounting groove (31), a spring (35) is fixed on the electromagnet (33), a magnetic block (34) sliding between the mounting groove (31) is fixed on the spring (35), and the magnetic block (34) is fixed to the magnetic block (34) ) has the same magnetic pole as the opposite surface of the electromagnet (33); a locking column (32) sliding in the mounting groove (31) is fixed on the magnetic block (34); a connecting column (30) is coaxially rotatably connected to the first connecting disk (27); a coaxially arranged second connecting disk (28) is fixedly connected to the connecting column (30); a plurality of locking grooves (29) are arranged at the bottom of the second connecting disk (28); the plurality of locking grooves (29) are annularly distributed, and the locking column (32) and the locking grooves (29) are located on the same circumference; an upper cover (26) is fixed on the transmission box (22); a rotatably arranged second shaft rod (24) is passed through the upper cover (26); the second shaft rod (24) is coaxially fixedly connected to the circular plate (21).

4. A water purification and sterilization device for a washing machine according to claim 2, It is characterized in that The invention also comprises a pipeline mechanism, wherein the pipeline mechanism comprises a first hose (12) and a second hose (16) respectively connected to the water inlet short pipe (13) and the water outlet short pipe (18); the first hose (12) is fixedly connected to the water inlet pipe (3); the water inlet pipe (3) is provided with a first solenoid valve (10); the second hose (16) is connected to the water inlet pipe (15); the water inlet pipe (3) is provided with a backwash pipe (9); the other end of the backwash pipe (9) is connected to the purification box (6) and is arranged close to the water outlet short pipe (18); the backwash pipe (9) is provided with a second solenoid valve (14); a sewage pipe (4) is provided at the bottom of the water inlet short pipe (13); the sewage pipe (4) is provided with a third solenoid valve (11); and the water outlet short pipe (18) is provided with a fourth solenoid valve (17).

5. A water purification and sterilization device for a washing machine according to claim 4, It is characterized in that The washing machine (1) is provided with a blocking plate (2), the blocking plate (2) being provided with a first through hole and a second through hole, and the water inlet pipe (3) and the sewage discharge pipe (4) are respectively provided through the first through hole and the second through hole.

6. A water purification and sterilization device for a washing machine according to claim 4, It is characterized in that The first solenoid valve (10) and the fourth solenoid valve (17) are opened and closed at the same time.

7. A water purification and sterilization device for a washing machine according to claim 4, It is characterized in that The second solenoid valve (14) and the third solenoid valve (11) are opened and closed at the same time.

8. A water purification and sterilization device for a washing machine according to claim 1, It is characterized in that The purification mechanism comprises a plurality of mixed porous flow guide plates (7) fixed to the inner wall of the purification box (6), wherein the length direction of the mixed porous flow guide plates (7) is arranged relative to the axial direction of the water inlet short pipe (13) and the water outlet short pipe (18), and a filter screen (8) is fixedly connected to the mixed porous flow guide plates (7) and the purification box (6), and the filter screen (8) is arranged in an inclined manner.

9. A water purification and sterilization device for a washing machine according to claim 1, It is characterized in that An ultraviolet disinfection lamp (37) is installed at the inner bottom of the purification box (6), and the ultraviolet disinfection lamp (37) is arranged opposite to the mixing porous guide plate (7).

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