Water heater with scale self-removal function

Abstract

The application discloses a water heater with scale self-removal function, and relates to the technical field of water heater components.The water heater comprises a shell, an inner container arranged in the shell and used for storing water, a water inlet pipe and a water outlet pipe arranged at the bottom of the inner container and used for water supply and drainage, and a heating pipe arranged in the inner container and used for heating water; a scale collector is arranged in the inner container and used for collecting scale; a water inlet and a drain outlet are arranged on the scale collector; a drain port for removing impurities is arranged at the bottom of the scale collector; the drain port is located outside the inner container and is connected with a sealing cover.The application can automatically precipitate and filter out the impurities in the water in the water heater, prevents the water heater from accumulating scale inside, is convenient to clean, saves cost, and improves the use experience and service life of the water heater.

Description

Technical Field

[0001] This invention relates to the field of water heater components, and more specifically to a water heater with a self-scale removal function. Background Technology

[0002] Since water heaters are mostly connected to tap water, which has a relatively high water hardness, it can easily affect the use of the water heater. High water hardness will cause thick scale to form inside the heater, reducing heating efficiency. Because the heat transfer speed is slowed down, it will also affect the lifespan of the heater itself. In addition, the scale layer at the outlet of the water pipe will continue to thicken, reducing the diameter of the pipe or even blocking it, causing water heater malfunctions. At the same time, a lot of scale will affect the water quality and experience. Long-term use of water with a lot of scale can also easily cause skin diseases and other problems.

[0003] The conventional method for solving limescale problems is to install a water softener at home to soften the water and then connect the softened water to the water heater. However, water softeners are expensive and cannot completely prevent impurities such as sand and gravel from entering the water heater. Even after the water is softened, limescale cannot be completely prevented from forming inside the water heater. Therefore, regular cleaning is an unavoidable step to ensure the normal operation of the water heater.

[0004] However, the conventional cleaning procedure for existing water heaters is to drain the internal water, then open the drain outlet to drain the sewage, and at most, add cold water for internal rinsing. However, this method has poor cleaning effect, is troublesome to operate, and wastes water. Professional cleaning requires professional personnel to come to the site, which is not only troublesome but also requires a certain amount of money, making it not economical. Summary of the Invention

[0005] The purpose of this invention is to provide a water heater with a self-scaling function, which can automatically precipitate and filter out impurities in the water inside the water heater, prevent scale buildup inside the water heater, make cleaning convenient and cost-effective, and improve the user experience and service life of the water heater.

[0006] The present invention includes an outer shell and an inner tank disposed inside the outer shell for storing water. The bottom of the inner tank is provided with an inlet pipe and an outlet pipe for water supply and drainage. The inner tank is provided with a heating pipe for heating the water. The inner tank is provided with a scale collector for collecting scale. The scale collector is provided with an inlet and an outlet. The bottom of the scale collector is provided with a discharge port for removing impurities. The discharge port extends to the outside of the outer shell and is connected to a sealing cap.

[0007] Preferably, the scale collector includes water inlets located on the left and right sides, and a drain outlet located at the top. A sealing plate is provided at the water inlet, and a self-closing mechanism is movably connected to the inner side of the sealing plate. The drain outlet is connected to a water pump. An agitator is provided inside the scale collector, and a turbine is connected above the agitator. The turbine is located at the water outlet of the water inlet pipe. The impact force of the incoming water drives the turbine to rotate, thereby driving the agitator to rotate.

[0008] Preferably, a rotating wheel is fitted onto the heating tube, and the rotating wheel is located at the outlet of the water pump. The impact force of the water at the water pump outlet drives the rotating wheel to rotate.

[0009] Preferably, the agitation assembly includes a connecting shaft, a stirring rod fixedly mounted at the lower end of the connecting shaft, and a spiral blade fixedly mounted at the upper end of the connecting shaft; a screw is fixedly connected above the connecting shaft, a screw sleeve is fitted onto the screw, a movable sleeve block is provided above the screw sleeve, and a scraping mechanism is movably connected to the movable sleeve block; a filtering mechanism is fixedly mounted above the screw.

[0010] Preferably, the filtration mechanism includes a positioning column, the lower end of which is fixedly connected to the upper end of the screw. A limit frame is provided on the outside of the positioning column, and filter cotton is provided inside the limit frame. A rotating sleeve is rotatably installed inside the positioning column, and the rotating sleeve is connected to the lower end of the turbine shaft through a bushing assembly.

[0011] Preferably, the scraping mechanism includes a connecting frame movably connected to the movable sleeve block, a base movably connected to the connecting frame, and bristles provided on the upper surface of the base, with the bristles contacting the bottom of the filtering mechanism.

[0012] Preferably, the stirring rods are fixed on the connecting shaft in a ring array of three, and the two sets of stirring rods are equidistantly arranged at the lower end of the connecting shaft.

[0013] Preferably, the self-closing mechanism includes a spring telescopic rod and a connecting rod movably connected to the end of the spring telescopic rod. The tail of the connecting rod is provided with a trigger rod. The connecting rod is rotatably connected to a fixed shaft, and the fixed shaft is fixed to the inner wall of the scale collector. It also includes a limiting rod fixed to the inner wall of the scale collector. The limiting rod is provided on the left and right sides of the connecting rod. The end of the limiting rod located on the connecting rod side is provided with a limiting component for limiting the connecting rod.

[0014] Preferably, the limiting assembly includes a second spring disposed in the movable groove at the end of the limiting rod and a limiting block fixed to the end of the second spring. The outer end of the limiting block is hemispherical, and the limiting block extends out of the movable groove and matches the limiting grooves located on the left and right sides of the connecting rod.

[0015] In summary, the present invention has the following beneficial effects:

[0016] 1. The waist-shaped inner tank design of the water heater allows scale to concentrate in the center of the bottom wall of the inner tank. The scale collector has inlets on both sides with openings lower than the bottom wall of the water heater container, allowing some scale and impurities to settle naturally into the scale collector. Alternatively, the water pump can be turned on to draw water out from the drain outlet and into the inlets on both sides, creating water flow within the scale collector. This allows water in the inner tank to carry scale and impurities into the scale collector, where they are filtered through the filter cotton before flowing out. This concentrates scale within the scale collector, reducing the amount of scale retained in the inner tank and minimizing its impact on the water heater.

[0017] 2. At the same time, when the water pump is draining water, it will push the water towards the blades of the impeller. When the impeller rotates under force, it will generate an eccentric force due to the different sizes of the blades, which will cause the heating tube to vibrate to a certain extent. This can shake off the scale that has formed on the surface of the heating tube to a certain extent, and also accelerate the rate at which the scale falls off the surface, reducing the possibility of large-area scale formation on the surface.

[0018] 3. When water is supplied through the inlet pipe, it will discharge water directly into the turbine, causing the water flow to drive the turbine to rotate. The turbine will then drive the connecting shaft and screw to rotate via the rotating shaft, causing the bristles to scrape the bottom of the filter cotton, thus preventing scale or impurities from accumulating on the bottom wall of the filter cotton and clogging its pores. At the same time, the rotation of the connecting shaft will drive the stirring rod and the spiral blade to rotate. The stirring rod and the spiral blade will agitate the scale accumulated in the scale collector to a certain extent on the upper and lower sides of the longitudinal inner cavity of the scale collector, thereby breaking down larger scale particles. This not only reduces the gaps between scale particles, ensuring effective storage space in the scale collector, but also facilitates the subsequent discharge of scale clumps.

[0019] 4. During use, the sealing cover can be rotated open periodically and dragged downwards until the filter cotton is removed from the scale collector. When the sealing cover is opened, the impurities and water in the scale collector can be discharged through the discharge port. During this process, the self-closing mechanism will be triggered, so the two sets of sealing plates will close, and no excess water will be discharged, which can avoid waste. The operation is simple and convenient. The extracted filter cotton can also be replaced individually to ensure the economy of use. Attached Figure Description

[0020] Figure 1 This is a front view schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a front sectional view of the present invention;

[0022] Figure 3 This is a schematic diagram of the scale collector in this invention;

[0023] Figure 4This is a schematic diagram of the rotor structure;

[0024] Figure 5 This is a cross-sectional schematic diagram of the scale collector in this invention;

[0025] Figure 6 for Figure 5 A schematic diagram showing the split state of the transfer shaft and the trigger state of the self-closing mechanism;

[0026] Figure 7 This is a schematic diagram showing the unfolded state of the connecting frame and the base in this invention;

[0027] Figure 8 This is a schematic diagram of the retracted state of the connecting frame and the base in this invention;

[0028] Figure 9 This is a schematic diagram of the movable nesting block structure;

[0029] Figure 10 This is a schematic diagram showing the disassembled state of the filter cotton in this invention;

[0030] Figure 11 This is a cross-sectional schematic diagram of the filtration mechanism in this invention;

[0031] Figure 12 This is a schematic diagram of the bushing assembly in this invention;

[0032] Figure 13 This is a schematic diagram of the structure connecting the bushing and the rotating shaft in this invention;

[0033] Figure 14 This is a schematic diagram of the structure of the water inlet and the sealing plate in this invention;

[0034] Figure 15 This is a schematic diagram of the self-closing mechanism in this invention;

[0035] Figure 16 This is a cross-sectional view of the limiting component in this invention. Detailed Implementation

[0036] The invention will now be further described with reference to the accompanying drawings.

[0037] The orientations mentioned in this specification are based on the orientation of the water heater with self-scale removal function of the present invention when it is working normally. They do not limit the orientation during storage and transportation, but only represent relative positional relationships, not absolute positional relationships.

[0038] like Figure 1 and Figure 2As shown, a water heater with a self-scaling function includes an outer shell 100 and an inner tank 1 disposed inside the outer shell 100 for water storage. The bottom of the inner tank 1 is connected to an inlet pipe 2 and an outlet pipe 3 for water inlet and outlet. A magnesium rod 4 for softening water is vertically installed inside the inner tank 1. The inner tank 1 also has a heating element 5 for heating water and a thermostat 6 for temperature measurement. The lower ends of the inlet pipe 2 and the outlet pipe 3 are provided with threaded connectors for external water pipes. The upper opening of the outlet pipe 3 is located inside the upper side of the inner tank 1, while the upper opening of the inlet pipe 2 is located inside the lower side of the inner tank 1. The thermostat 6 is located at the center of the right side of the inner tank 1, that is, at the center of the longitudinal section of the inner tank 1. The outer shell 100 is also provided with a control panel 101, which is provided with conventional control buttons. The control panel 101 contains a switch program for controlling the start of the water pump 10.

[0039] like Figure 2 , Figure 3 and Figure 5 As shown, a scale collector 7 is embedded in the bottom wall of the inner tank 1. Water inlets 8 are provided at both the left and right ends of the scale collector 7. A drain outlet 9 is provided on the upper side of the scale collector 7. The drain outlet 9 is connected to the water inlet of the water pump 10. A waste discharge port 12 is provided at the lower end of the scale collector 7. A sealing cover 13 is installed on the waste discharge port 12 by thread. The sealing cover 13 is placed outside the outer shell 100.

[0040] like Figures 2 to 4 As shown, a rotating wheel 11 is rotatably mounted on the heating tube 5. The inner diameter of the rotating wheel 11 is larger than the outer diameter of the heating tube 5. The rotating wheel 11 can rotate around the heating tube. The surface of the rotating wheel 11 is provided with blades of different lengths in a ring. The rotating wheel 11 is opposite to the outlet of the water pump 10. The outlet of the water pump 10 is directly opposite the lower blade of the rotating wheel 11. When the water pump 10 discharges water, the rotating wheel 11 can be rotated by the thrust of the water.

[0041] like Figure 2 As shown, the optimal installation position of the rotating wheel 11 is at the middle position of the farthest end of the heating tube 5. When the rotating wheel 11 rotates, it will generate an unstable eccentric force. The eccentric force acts on the farthest end of the heating tube 5, which can cause it to shake and vibrate to a certain extent. In this way, the dirt on the surface of the heating tube 5 can be removed more quickly by physical means, and the dirt on the surface is less likely to clump together over a large area, thereby ensuring that it has a sufficiently long and good service life to a certain extent. The rotating wheel 11 can only rotate on the heating tube 5 and cannot move laterally along the heating tube 5. Moreover, the material of the rotating wheel 11 should not be a hard metal material. It should be made of materials such as high-temperature resistant plastic or silicone that will not scratch the metal surface of the heating tube 5.

[0042] like Figures 5 to 9As shown, a connecting shaft 14 is fixedly connected to the upper end of the sealing cover 13, and an agitator is provided on the surface of the connecting shaft 14; a screw 17 is fixedly connected above the connecting shaft 14, and a screw sleeve 18 is threaded onto the screw 17; a movable sleeve 19 is provided above the screw sleeve 18; the movable sleeve 19 is fitted onto the screw 17, and the left and right ends of the movable sleeve 19 are respectively connected to two sets of bases 22 through two sets of connecting brackets 21; and brush bristles 23 are provided on the upper surface of the base 22.

[0043] like Figure 6 and Figure 10 As shown, the agitation assembly includes stirring rods 15 and spiral blades 16. Two sets of stirring rods 15 are equidistantly arranged on the lower side of the connecting shaft 14. The stirring rods 15 are fixed on the connecting shaft 14 in a ring array of three. Spiral blades 16 are arranged on the upper side of the connecting shaft 14. The outer diameter of the spiral blades 16 is larger than the outer diameter of the limiting frame 25. The inner diameter of the discharge port 12 is adapted to the outer diameter of the spiral blades 16. The upper inner diameter of the scale collector 7 is adapted to the outer diameter of the limiting frame 25. This structure is used to drive the stirring rods 15 and spiral blades 16 to rotate through the rotation of the turbine 33, thereby agitating the impurities accumulated in the scale collector 7. This allows larger scale blocks or flakes to be broken up, reducing the gaps during storage and making full use of the space inside the scale collector 7. At the same time, it can prevent larger impurity blocks from affecting the slag discharge efficiency during slag discharge.

[0044] like Figure 10 As shown, the upper end of the connecting shaft 14 is provided with a keyed connector, and the lower end of the screw 17 is provided with a slot that matches the connector. After insertion, the connecting shaft 14 and the screw 17 are fixed together by screws perpendicular to the axial direction. At the same time, the surface of the screw sleeve 18 is provided with longitudinal anti-slip texture, which can play an anti-slip role when rotating the screw sleeve 18. The upper end of the screw 17 is fixedly connected to the lower end of the positioning post 24. The outer side of the positioning post 24 is provided with a limit frame 25. The limit frame 25 is provided with a filter cotton 26, and the filter cotton 26 is sleeved on the positioning post 24. The rotating sleeve 27 is rotatably installed inside the positioning post 24. The opposite ends of the two sets of bases 22 are rotatably connected to the lower end of the rotating sleeve 27.

[0045] like Figure 11 and Figure 12As shown, the rotating sleeve 27 has anti-detachment protrusions on both the upper and lower sides, allowing it to rotate within the positioning post 24 without slipping out. The rotation connection point between the base 22 and the rotating sleeve 27 is symmetrically arranged around the center of the rotating sleeve 27 to avoid eccentricity during rotation. Additionally, the upper end of the limiting frame 25 has a ring array of teardrop-shaped holes to ensure that water filtered by the filter cotton 26 can flow directly through the holes. Four upright posts are also provided on the outer side of the limiting frame 25. The bottom is equipped with a ring, and the inner side of the cross-section of the four columns is arc-shaped. The outer wall of the filter cotton 26 is provided with four sets of arc-shaped grooves that match the columns. The outer diameter of the filter cotton 26 matches the inner diameter of the limiting frame 25. However, the bottom arc-shaped opening of the limiting frame 25 is provided with an annular protrusion, and the inner diameter of the protrusion is smaller than the outer diameter of the filter cotton 26. In this way, after the filter cotton 26 is deformed and inserted into the limiting frame 25, the protrusion can hold the lower outer side of the filter cotton 26, thereby preventing it from sliding downwards.

[0046] like Figure 13 As shown, the rotating sleeve 27 is connected to the lower end of the rotating shaft 30 through a bushing assembly. The rotating shaft 30 is installed at the center of the limiting grid 31 through a bearing. The limiting grid 31 is fixedly installed inside the upper end of the scale collector 7. A sealed bearing 32 is provided at the top of the scale collector 7. The upper end of the rotating shaft 30 passes through the sealed bearing 32 and is equipped with a turbine 33. The upper opening of the water inlet pipe 2 is directly opposite the blade on the left side of the turbine 33.

[0047] like Figure 6 As shown, the limiting grid 31 is composed of nine sets of horizontal bars that surround a circular body. The horizontal bars are fixedly connected to the inner wall of the scale collector 7. The bearing is installed at the center of the circular body structure. The gap between the limiting grid 31 and the upper inner wall of the scale collector 7 is greater than the longitudinal spacing of the drain outlet 9. This ensures that the water flow can pass through the limiting grid 31 and enter the drain outlet 9 normally.

[0048] like Figures 14 to 16 As shown, both sets of water inlets 8 are rotatably mounted with sealing plates 34 for closing. The ends of the sealing plates 34 are provided with self-closing mechanisms for closing the water inlets 8 after the sealing cover 13 is opened and removed. The self-closing mechanism includes a spring telescopic rod 35. The inner side of the sealing plate 34 is rotatably connected to one end of the spring telescopic rod 35, and the other end of the spring telescopic rod 35 is rotatably connected to one end of the connecting rod 36. The other end of the connecting rod 36 is rotatably sleeved on the fixed shaft 37. The fixed shaft 37 is horizontally fixed on the inner wall of the scale collector 7. The end of the connecting rod 36 sleeved on the fixed shaft 37 is provided with a trigger rod 38. The inner wall of the scale collector 7 is provided with a limit rod 39. The limit rod 39 is provided on the left and right sides of the connecting rod 36. The end of the limit rod 39 located on the side of the connecting rod 36 is provided with a limiting component for limiting the connecting rod 36.

[0049] like Figure 16 As shown, the limiting assembly includes a second spring 40 disposed in the movable groove at the end of the limiting rod 39 and a limiting block 41 movably mounted at the opening of the movable groove. The inner end of the limiting block 41 abuts against the second spring 40, and the outer end of the limiting block 41 is hemispherical. A limiting groove 42 with an inner diameter adapted to the limiting block 41 is provided on the outer side of the rotating part of the connecting rod 36 and the spring telescopic rod 35. The working principle of each component is as follows:

[0050] Component Disassembly 1: For example Figure 2 As shown, the longitudinal section of the inner tank 1 is waist-shaped, and the scale collector 7 is located at the lowest point of the bottom wall of the inner tank 1. The water inlet 8 is semi-circular, and the bottom side of the opening of the water inlet 8 is flush with or lower than the bottom inner wall of the inner tank 1. This structure is used to ensure that impurities in the inner tank 1 can naturally settle to the lowest point, i.e., the location of the scale collector 7, during natural settling. At the same time, since the longitudinal section of the inner wall of the inner tank 1 is circular, and the opening of the water inlet 8 is lower than the bottom inner wall of the inner tank 1, some impurities will naturally pass through the water inlet along the inner wall of the inner tank 1. 8 falls into the scale collector 7. During this process, when the water pump 10 is started, the water can be actively allowed to flow into the scale collector 7 through the inlet 8, which can greatly increase the scale collection effect and achieve the self-descale function. Furthermore, since the inlet 8 is a semi-circular mechanism, located in the upper part of both ends of the scale collector 7, and after the impurities enter the scale collector 7, they will naturally slide to the bottom of the scale collector 7. When the water pump 10 is not started, the water flow in this part is stable, so it is extremely difficult for the impurities to flow back out through the inlet 8. This ensures a good scale collection effect.

[0051] Component Disassembly Part 2: As Figure 7 As shown, the upper side of the threaded sleeve 18 is provided with an annular movable groove for the movable sleeve block 19 to move up and down and rotate. The upper end of the movable sleeve block 19 is provided with an annular protrusion. A first spring 20 is sleeved on the movable sleeve block 19. The upper and lower ends of the first spring 20 abut against the upper end of the threaded sleeve 18 and the bottom surface of the annular protrusion at the upper end of the movable sleeve block 19, respectively. The lower end of the movable sleeve block 19 is provided with an annular protrusion, and the upper end of the threaded sleeve 18 is provided with a movable groove whose opening is adapted to the size of the middle part of the movable sleeve block 19 and whose inner diameter is adapted to the protrusion at the lower end of the movable sleeve block 19. This movable groove ensures that the movable sleeve block 19 can rotate and move up and down while preventing it from falling out. At the same time, the inner diameter of the movable sleeve block 19 is larger than the outer diameter of the screw 17, which can avoid unnecessary friction when the movable sleeve block 19 rotates on the screw 17.

[0052] like Figure 7 and Figure 11As shown, the default state of the brush bristles 23 is to be in contact with the bottom of the filter cotton 26, and the separate connecting frame 21 is composed of two rods respectively placed on the front and rear sides of the base 22. When folded, the base 22 can be folded parallel to the connecting frame 21. This structure ensures that the brush bristles 23 will not be subjected to excessive force when they come into contact with the bottom surface of the filter cotton 26, thus preventing scratching. By rotating the screw sleeve 18 to move it upward, the movable sleeve 19 can be raised. When the brush bristles 23 come into contact with the filter cotton 26, and the screw sleeve 18... When rising, the movable sleeve 19 and the screw sleeve 18 retract and compress the first spring 20. The first spring 20, through its elastic force, lifts the movable sleeve 19, allowing it to press the bristles 23 tightly against the bottom surface of the filter cotton 26 via the connecting bracket 21 and the base 22. Adjusting the screw sleeve 18 downwards reduces the contact force between the bristles 23 and the filter cotton 26. This method can adjust the brushing force and compensate for the reduced thickness of the bristles 23 due to wear. Figure 8 and Figure 10 As shown, when the filter cotton 26 needs to be replaced, the connecting shaft 14 and the screw 17 can be separated first, and then the screw sleeve 18 can be rotated to move it down. Then, the movable sleeve 19 will drive the two sets of bases 22 to fold down and close together with the screw 17 through the connecting frame 21. The filter cotton 26 can then be pulled out downwards. At this time, since the distance between the two sides of the folded connecting frame 21 and the base 22 will be smaller than the lower outer diameter of the positioning post 24, it will not obstruct the filter cotton 26. After the filter cotton 26 is replaced, the screw sleeve 18 can be reversed and the base 22 can be reset.

[0053] Component Disassembly Part 3: For example Figures 11 to 13 As shown, the bushing assembly includes a connecting bushing 28 disposed inside the rotating sleeve 27. The surface of the connecting bushing 28 is provided with grooves arranged in an annular array. The inner wall of the rotating sleeve 27 is provided with protrusions arranged in an annular array that match the grooves. The upper end of the rotating sleeve 27 is fitted with a limiting ring 29 whose inner diameter is smaller than the outer diameter of the connecting bushing 28 by screws. The lower surface of the rotating shaft 30 is provided with anti-slip texture. The rotating shaft 30 is inserted into the connecting bushing 28, and the inner diameter of the connecting bushing 28 is smaller than the outer diameter of the rotating shaft 30.

[0054] The inner wall of the rotating sleeve 27 has a set of protrusions with screw holes at the upper end, and the limiting ring 29 has a through hole with screw holes. The through hole is positioned opposite to the screw hole. The height of the protrusions inside the rotating sleeve 27 is lower than the upper opening of the rotating sleeve 27 and is the same as the height of the connecting sleeve 28. When the limiting ring 29 is on the connecting sleeve 28, it is embedded in the inner side of the upper end of the rotating sleeve 27 and its upper surface is flush. In use, the rotating shaft 30 is inserted into the connecting sleeve 28 for interference connection to ensure torque transmission. The connecting sleeve 28 can also transmit torque well by cooperating with the protrusions on the inner wall of the rotating sleeve 27. If the connecting sleeve 28 needs to be replaced, the screws on the limiting ring 29 can be unscrewed and removed. Finally, the connecting sleeve 28 can be taken out, and the new connecting sleeve 28 can be aligned and inserted into the rotating sleeve 27. Then, the limiting ring 29 can be placed on the connecting sleeve 28 and fixed with screws.

[0055] Component Disassembly Part 4: (e.g.) Figures 14 to 16 As shown, the outer diameter of the limiting frame 25 is matched with the inner diameter of the upper tube of the scale collector 7, while the outer diameter of the spiral blade 16 is five millimeters larger than the outer diameter of the filter cotton 26, and the outer diameter of the spiral blade 16 is matched with the inner diameter of the lower tube of the scale collector 7. The distance between the ends of the two sets of trigger rods 38 is at least five millimeters less than the outer diameter of the spiral blade 16. Thus, when the spiral blade 16 and the filter cotton 26 are pulled out, the edge of the filter cotton 26 will push the two sets of trigger rods 38 downward, causing the trigger rods 38 to drive the connecting rod 36 to rotate upward through the fixed shaft 37, causing it to lift the sealing plate 34 and close the inlet 8 through the spring telescopic rod 35. When the limiting frame 25 and the spiral blade 16 are reinserted, the trigger rods 38 will be pushed upward again, causing it to drive the connecting rod 36 to rotate downward through the fixed shaft 37, causing the spring telescopic rod 35 to pull the sealing plate 34 open, thereby realizing a mechanical linkage automatic switch.

[0056] Furthermore, the rotating parts of the spring telescopic rod 35 and the connecting rod 36 cannot be concave upwards, meaning the rotation angle cannot exceed 180 degrees. This prevents malfunctions. The spring telescopic rod 35 is composed of a set of sleeve rods 351 and a set of insert rods 352 connected together. Figure 15 As shown, a spring is provided in the movable cavity of the sleeve rod 351. When the sleeve rod 351 and the insert rod 352 are stretched, the spring is compressed by force and returns to its original position after the tension on the sleeve rod 351 and the insert rod 352 disappears.

[0057] like Figure 5 As shown, the spring telescopic rod 35 is in its normal state, and its internal spring is not under force. At this time, when the spiral blade 16 moves downwards, it can contact the trigger rod 38. Figure 6In the state shown, when the limiting frame 25 and the spiral blade 16 are inserted, they will continuously contact and push up the trigger rod 38. Since the object needs to pass through the trigger rod 38, the two sets of trigger rods 38 need to rotate until the distance between them is greater than the outer diameter of the object. Therefore, when the trigger rod 38 rotates, the spring telescopic rod 35 will increase the rotation amplitude of the sealing plate 34, the spring telescopic rod 35 and the connecting rod 36 by stretching, allowing the object to pass between the two sets of trigger rods 38. At this time, the spring will be compressed. After the object passes, the spring will return to its original position, causing the spring telescopic rod 35 to contract and return to its normal state. The trigger rod 38 will also be forced to rotate and return to its original position, so that it can be located under the object. In this way, the spiral blade 16 can be allowed to pass through the trigger rod 38, and the trigger rod 38 can remain under the spiral blade 16 after it passes, and be triggered when the spiral blade 16 is dislodged.

[0058] Component Disassembly Part 5: (e.g.) Figure 5 , Figure 6 and Figure 16 As shown, the limiting component is used so that when the sealing plate 34 is closed, the connecting rod 36 moves upward until it contacts the limiting block 41. Its end will squeeze the limiting block 41 to retract inward and compress the second spring 40. After aligning with the limiting groove 42, the compressed second spring 40 will eject the limiting block 41 through the elastic force to lock the connecting rod 36, so that the sealing plate 34 can be kept in a closed state under force, preventing it from opening naturally due to water pressure. At the same time, since the end of the limiting block 41 is hemispherical, when it is inserted into the limiting groove 42, it can automatically disengage from it if it is squeezed by sufficient force. The structure is simple and convenient.

[0059] The water heater operates as follows: During use, cold water enters through the inlet pipe 2. When water flows out of the inlet pipe 2, it drives the turbine 33 to rotate. The turbine 33, via the rotating shaft 30, drives the screw 17 to rotate. The screw 17 then drives the connecting shaft 14 to rotate. During this process, the brush bristles 23 scrape the bottom surface of the filter cotton 26 while rotating. Meanwhile, the spiral blades 16 and the stirring rod 15 agitate the scale accumulated in the scale collector 7, breaking down larger scale flakes and facilitating subsequent drainage and collection. The scale collector 7 stores scale. When in use, the inlet 8 is open. When the water pump 10 is started, water is drawn through the inlet 8, allowing the water at the bottom to carry the scale into the scale collector 7. Since there is filter cotton 26 in the scale collector 7, the scale will be filtered into the scale collector 7. The filtered water will be discharged through the water pump 10. After the scale accumulates in the water pump 10 to a certain extent, the sealing cover 13 can be rotated open and pulled out periodically to allow the scale to be carried out for removal.

[0060] The sealing cover 13 is opened by rotation. When it is opened, it can be slightly pulled down, that is, the sealing cover 13 moves downward, but the spiral blade 16 and the stirring rod 15 are not in the state of the trigger rod 38. After the discharge port 12 opens, the impurities in the scale collector 7 can be discharged naturally. At this time, the water inlet 8 is still in the open state. Therefore, the water in the inner tank 1 will carry the scale into the scale collector 7 through the water inlet 8 and flush the scale collector 7 until it is discharged from the discharge port 12. This process can last for a period of time to allow the impurities outside the opening of the water inlet 8 to be discharged to ensure the subsequent use effect. During the slag discharge process, the connecting shaft 14 can be rotated so that the connecting shaft 14 moves the impurities in the scale collector 7 through the spiral blade 16, thereby reducing the accumulation of impurities and accelerating the discharge.

[0061] Unscrew the sealing cap 13 until the spiral blade 16 and filter cotton 26 are completely removed. During this process, the self-closing mechanism will be activated and the water inlet 8 will be closed. At this time, the impurities in the scale collector 7 can still be discharged naturally, while the water in the inner tank 1 will not be discharged, thus avoiding water waste. When the spiral blade 16 and the limiting frame 25 are pulled out, the accumulated impurities can be carried out, which can effectively remove impurities. After removal, the filter cotton 26 can be replaced. After the operation is completed, reinsert the limiting frame 25 and the spiral blade 16 into the scale collector 7 to open the self-closing mechanism. Finally, tighten the sealing cap 13. The above is the complete working principle of the present invention.

[0062] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A water heater with a self-scale removal function, characterized in that: The device includes an outer shell (100) and an inner tank (1) disposed inside the outer shell (100) for storing water. The bottom of the inner tank (1) is provided with an inlet pipe (2) and an outlet pipe (3) for water inlet and outlet. The inner tank (1) is provided with a heating pipe (5) for heating the water. The inner tank (1) is provided with a scale collector (7) for collecting scale. The scale collector (7) is provided with an inlet (8) and a drain (9). The bottom of the scale collector (7) is provided with a sludge discharge port (12) for removing impurities. The sludge discharge port (12) extends to the outside of the outer shell (100) and is connected to... The scale collector (7) has a sealing cover (13); the scale collector (7) includes water inlets (8) located on the left and right sides, and a drain outlet (9) located at the top. A sealing plate (34) is provided at the water inlet (8), and a self-closing mechanism is movably connected to the inner side of the sealing plate (34). The drain outlet (9) is connected to a water pump (10). The scale collector (7) is equipped with an agitator, and a turbine (33) is connected above the agitator. The turbine (33) is located at the outlet of the water inlet pipe (2). The impact force of the incoming water drives the turbine (33) to rotate, thereby driving the agitator to rotate.

2. A water heater with self-scale removal function as described in claim 1, characterized in that: A rotating wheel (11) is sleeved on the heating tube (5). The rotating wheel (11) is located at the outlet of the water pump (10). The impact force of the water at the outlet of the water pump (10) drives the rotating wheel (11) to rotate.

3. A water heater with self-scale removal function as described in claim 1, characterized in that: The agitation assembly includes a connecting shaft (14), a stirring rod (15) fixedly mounted at the lower end of the connecting shaft (14), and a spiral blade (16) fixedly mounted at the upper end of the connecting shaft (14); a screw (17) is fixedly mounted above the connecting shaft (14), a screw sleeve (18) is sleeved on the screw (17), a movable sleeve block (19) is provided above the screw sleeve (18), and a scraping mechanism is movably connected to the movable sleeve block (19); a filtering mechanism is fixedly mounted above the screw (17).

4. A water heater with self-scale removal function as described in claim 3, characterized in that: The filtering mechanism includes a positioning column (24), the lower end of which is fixedly connected to the upper end of the screw (17). A limiting frame (25) is provided on the outside of the positioning column (24), and a filter cotton (26) is provided inside the limiting frame (25). A rotating sleeve (27) is rotatably installed inside the positioning column (24), and the rotating sleeve (27) is connected to the lower end of the turbine (33) shaft (30) through a bushing assembly.

5. A water heater with self-scale removal function as described in claim 3, characterized in that: The scraping mechanism includes a connecting frame (21) movably connected to the movable sleeve (19), a base (22) movably connected to the connecting frame (21), and bristles (23) provided on the upper surface of the base (22), the bristles (23) contacting the bottom of the filtering mechanism.

6. A water heater with self-scale removal function as described in claim 3, characterized in that: The stirring rods (15) are fixed on the connecting shaft (14) in a ring array of three, and two sets of stirring rods (15) are equidistantly arranged at the lower end of the connecting shaft (14).

7. A water heater with self-scale removal function as described in claim 1, characterized in that: The self-closing mechanism includes a spring telescopic rod (35) and a connecting rod (36) movably connected to the end of the spring telescopic rod (35). The tail of the connecting rod (36) is provided with a trigger rod (38). The connecting rod (36) is rotatably connected to a fixed shaft (37). The fixed shaft (37) is fixed to the inner wall of the scale collector (7). It also includes a limiting rod (39) fixed to the inner wall of the scale collector (7). The limiting rod (39) is provided on the left and right sides of the connecting rod (36). The end of the limiting rod (39) located on the side of the connecting rod (36) is provided with a limiting component for limiting the connecting rod (36).

8. A water heater with self-scale removal function as described in claim 7, characterized in that: The limiting assembly includes a second spring (40) disposed in the movable groove at the end of the limiting rod (39) and a limiting block (41) fixed to the end of the second spring (40). The outer end of the limiting block (41) is hemispherical. The limiting block (41) extends out of the movable groove and matches the limiting grooves (42) located on the left and right sides of the connecting rod (36).

Images