CN111765653B

CN111765653B - Solar water heater with automatic scale cleaning function

Info

Publication number: CN111765653B
Application number: CN202010678173.4A
Authority: CN
Inventors: 李凤英
Original assignee: Chengdu Mingjie Technology Co ltd
Current assignee: Chengdu Mingjie Technology Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-10-19
Anticipated expiration: 2040-07-15
Also published as: CN111765653A

Abstract

The invention discloses a solar water heater with an automatic scale cleaning function, which comprises a support frame and a water tank arranged on the support frame, wherein a plurality of heat collecting pipes are obliquely arranged on the water tank; still be equipped with the pivot in the water tank, the axis of pivot and the axis collineation of water tank, first drive assembly and second drive assembly can drive pivot corotation or reversal respectively, are equipped with the connecting rod on the circumference outer wall of pivot, are equipped with the first scraper blade of laminating with the water tank inner wall on the connecting rod, still are equipped with the blow off pipe on another disc of water tank.

Description

Solar water heater with automatic scale cleaning function

Technical Field

The invention relates to the technical field of solar water heaters, in particular to a solar water heater with an automatic scale cleaning function.

Background

A solar water heater is a device that heats water using sunlight. The solar water heater is classified into a vacuum tube type solar water heater and a flat plate type solar water heater, and the vacuum tube type solar water heater occupies 95% of domestic market share. The vacuum tube type domestic solar water heater is composed of heat collecting tube, water storage tank and support, and can convert solar energy into heat energy, and mainly depends on the vacuum heat collecting tube, and utilizes the principle of that hot water floats upwards and cold water sinks to make water produce microcirculation to obtain the required hot water. The solar water heater is composed of a vacuum heat collecting pipe, a stainless steel water tank and a support, is a large industry in solar energy achievement application, provides a novel water heater product which is environment-friendly, safe, energy-saving and sanitary for common people, absorbs solar radiation heat energy, and heats cold water to provide energy-saving equipment for people in life and production. The water in the solar water heater is continuously heated, so that the concentration of calcium and magnesium salts in the water is increased, when the concentration of the calcium and magnesium salts exceeds the concentration of the calcium and magnesium salts, precipitates are separated out from the water to form precipitates, bicarbonate is heated and decomposed to generate insoluble precipitates, in addition, the solubility of certain salts is gradually reduced along with the increase of the temperature, the precipitates are separated out, and finally, impurities in tap water and dirt formed after microorganisms generated by the long-term use of the water heater die. Above-mentioned precipitate, impurity, the dirt bonds at water tank and vacuum tube wall, just formed the incrustation scale, the thermal conductivity coefficient of incrustation scale is much lower than the metal, the vacuum tube knot has the temperature of incrustation scale meeting ghost image noise, in addition, because the vacuum tube is that solar water heater's thermal-arrest bears higher temperature for a long time, the pipe wall knot has the heat conduction later vacuum tube of incrustation scale to bear higher temperature, therefore, the incrustation scale can influence the life of vacuum tube, current mode adopts artifical manual clearance mode, during the clearance, dismantle a root from the water tank with the thermal-collecting tube, then clear up the incrustation scale in thermal-collecting tube and the water tank one by one, it is comparatively inconvenient.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects in the prior art and aims to provide a solar water heater with an automatic scale cleaning function, which can automatically and quickly clean scales in a heat collecting pipe and a water tank and improve the scale cleaning efficiency of the water heater.

The invention is realized by the following technical scheme:

a solar water heater with an automatic scale cleaning function comprises a support frame and a water tank arranged on the support frame, wherein a plurality of heat collecting pipes are obliquely arranged on the water tank, a water inlet pipe is arranged on one circular surface of the water tank, cleaning assemblies are arranged in the heat collecting pipes and comprise movable rods and second scraping plates, one ends of the movable rods are fixed at the closed ends of the heat collecting pipes, the other ends of the movable rods extend into the water tank, the outer diameters of the second scraping plates are matched with the inner diameters of the heat collecting pipes, the second scraping plates are connected with the movable rods through threads, the movable rods are rotated, and the second scraping plates can move towards the direction of the water tank in the heat collecting pipes; the top of the second scraper is also provided with a boss with a circular ring structure, the boss can retract into the second scraper, the top of the second scraper is also provided with a plurality of water leakage holes, and the water leakage holes are positioned in the circular ring of the boss; the movable rod is also provided with a limiting piece, when the second scraper moves to be flush with the inner wall of the water tank, the limiting piece can press the boss into the second scraper, and the limiting piece can also plug the water leakage hole; the water tank is characterized in that the movable rods are provided with transmission teeth, the transmission teeth are positioned in the water tank, two adjacent transmission teeth are meshed with each other, two sides of the water tank are respectively provided with a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe are both connected with a water inlet pipe, the tail end of the first connecting pipe, which is positioned in the water tank, is provided with a first transmission assembly, the tail end of the second connecting pipe, which is positioned in the water tank, is provided with a second transmission assembly, the first transmission assembly and the second transmission assembly are respectively connected with the two movable rods, high-pressure water in the first connecting pipe can drive the first transmission assembly to drive the transmission teeth to rotate forwards, and high-pressure water in the second connecting pipe can drive the second transmission assembly to drive the transmission teeth to rotate backwards; still be equipped with the pivot in the water tank, the axis of pivot and the axis collineation of water tank to first drive assembly and second drive assembly can drive pivot corotation or reversal respectively, be equipped with the connecting rod on the circumference outer wall of pivot, be equipped with the first scraper blade of laminating with the water tank inner wall on the connecting rod, still be equipped with the blow off pipe on another disc of water tank.

Aiming at the problem that a thicker layer of scale can be attached to the inner walls of a water tank and a heat collecting pipe after a solar water heater in the prior art is used for a long time, the traditional cleaning mode is that the heat collecting pipes are manually detached from the water tank one by one and then the scale on the heat collecting pipes and the inner walls of the water tank are cleaned one by one, which is inconvenient, therefore, the technical scheme is that movable rods are arranged in the existing heat collecting pipes, preferably, the movable rods are made of copper materials and have good heat conductivity, so that the temperature in the heat collecting pipes can be rapidly conducted into the water tank, the heating efficiency of water in the water tank is improved, meanwhile, as the first transmission assembly and the second transmission assembly are respectively connected to the two movable rods, the arranged first transmission assembly and the second transmission assembly are respectively connected with a first connecting pipe and a second connecting pipe of a hard structure, when the scale in the water heater needs to be cleaned, the water pump connected with the water heater is utilized to introduce water in a high-pressure state into the first connecting pipe, the water in the high-pressure state forces the first transmission component to start working, so that the movable rod connected with the first transmission component rotates around the axis of the movable rod, when the movable rod rotates, the transmission teeth arranged on the movable rod drive the adjacent transmission teeth to rotate, thereby driving the movable rods in each heat collecting pipe to rotate one by one, as the second scraper blade on the movable rod is connected with the movable rod in a threaded mode, when the first transmission component drives the movable rod to rotate forwards, the second scraper blade arranged on the movable rod moves towards the water tank in the heat collecting pipe, and in the moving process of the second scraper blade, the second scraper blade scrapes scale attached to the inner wall of the heat collecting pipe and brings the scale into the water tank, after the scale in the heat collecting pipe is cleaned, in order to ensure that the scale on the inner wall of the heat collecting pipe is cleaned, the second scraper blade must be located the bottommost of thermal-collecting tube, so set up second transmission assembly, utilize the in-process of second transmission assembly to water tank internal water, can drive the movable rod reversal for in the scraper blade can return to the thermal-collecting tube, and be in the bottommost of thermal-collecting tube, make things convenient for next time to continue to clear up the incrustation scale on the thermal-collecting tube inner wall.

Because the outer diameter of the second scraper blade is consistent with the inner diameter of the heat collecting pipe, the second scraper blade can effectively clean scale attached to the inner wall of the heat collecting pipe in the process that the second scraper blade moves in the heat collecting pipe, in order to avoid that the second scraper blade blocks water in the water tank from flowing into the heat collecting pipe when the water tank is on, a plurality of water leakage holes are also arranged on the second scraper blade, so that the water in the water tank can timely enter the heat collecting pipe through the water leakage holes, however, because the second scraper blade moves towards the direction of the water tank, when the scale attached to the inner wall of the heat collecting pipe is hung down, the scale accumulated on the second scraper blade is easy to fall into the heat collecting pipe again through the arranged water leakage holes, a circular ring-structured boss is also arranged on the second scraper blade and is used for shielding the water leakage holes, and a certain gap is formed between the outer wall of the convex edge and the inner wall of the heat collecting pipe, the gap is used for storing the scale scraped from the inner wall of the heat collecting tube, and the movement of the scale in the heat collecting tube towards the radial direction of the heat collecting tube is limited, so that the condition that the scale blocks a water leakage hole is avoided; meanwhile, in order to facilitate discharging the scale scraped and stored in the gap between the boss and the heat collecting pipe from a drain outlet on the water tank, a limiting part is arranged on the movable rod for feeding water, when the second scraper moves to be flush with the inner wall of the water tank, the limiting part enables the boss originally protruding out of the second scraper to be pressed into the scraper, the top of the boss is flush with the top of the second scraper, the blockage of the boss to the scale is reduced, when water is fed into the water inlet pipe, the water horizontally fed into the water tank flushes the scale on the surface of the second scraper, the scale is flushed to the drain outlet, and finally the scale is discharged to the outside through the drain outlet, so that the scale in the heat collecting pipe is cleaned. On the other hand is owing to originally press into to the second scraper blade to the boss that the hole that leaks is sheltered from for the incrustation scale that the hole that leaks was being washed away easily blocks up, and the locating part that so set up can also carry out the shutoff to the hole that leaks, avoids the boss to retract back in the second scraper blade after, the hole that leaks is blockked up.

Simultaneously, this technical scheme has still set up the pivot in the water tank, the pivot is used for associating to first drive assembly and second drive assembly respectively, make first drive assembly not only can drive the corotation of movable rod, the corotation of pivot can also be driven simultaneously, two second drive assemblies not only can drive the reversal of movable rod, the just reversal of pivot can also be driven simultaneously, when the pivot is at the water tank internal rotation, the first scraper blade that sets up in the pivot can laminate and rotate on the inner wall of water tank, realize the clearance to the incrustation scale of attaching to on the water tank inner wall, thereby the clearance when having reached the dirt to the water tank inner wall.

Furthermore, an annular groove matched with the boss is formed in the top of the second scraper plate, an elastic piece is arranged in the annular groove, and the elastic piece is connected with the bottom of the boss; the central position department of second scraper blade still is equipped with the through-hole, the movable rod passes through the screw thread and is connected with the through-hole.

The ring channel that sets up is used for placing the boss, make the boss under the effect of locating part, can retract to the ring channel of second scraper blade in, thereby make the top of boss and the top of second scraper blade be in the state that flushes, and simultaneously, when guaranteeing to move back toward the thermal-collecting tube direction as the second scraper blade, the boss that retracts to in the ring channel can continue to stretch out and shelter from the hole that leaks, the event has still set up a plurality of elastic components in the ring channel, the elastic component is the spring, and when the elastic component is in natural state, the boss stretches out outside the ring channel.

Further, the locating part includes fixed plate, push down the pole and quantity and the shutoff pole that leaks water hole quantity the same, the fixed plate cover is on the movable rod to the fixed plate can rotate round the axis of movable rod, push down pole one end and fix in the bottom of fixed plate, the other end is located the boss chimb directly over, shutoff pole one end is located the bottom of fixed plate, the other end and the hole one-to-one that leaks.

The effect of locating part on the one hand among this technical scheme is to pushing down the boss, move to before flushing with the water tank inner wall when the top of second scraper blade, the chimb of boss is touched to the lower depression bar that sets up in the fixed plate bottom, the removal that the second scraper blade continues at any time, the depression bar is impressed the boss to the ring channel in gradually, and when the upper surface of second scraper blade removed to when leveling with the water tank inner wall, the depression bar impresses the boss to maximum displacement department, at this moment, the movable rod will unable continuation rotation, the displacement volume of second scraper blade has been restricted, on the other hand, when the boss retracts in the second scraper blade, in order to avoid the incrustation scale to get into to the hole that leaks, the event has still set up the shutoff pole that quantity and hole quantity are the same in the bottom of fixed plate, the shutoff pole that utilizes to set up inserts to each hole that leaks, carry out the shutoff to the hole that leaks.

Because the outer diameter of the circular ring-shaped boss in the technical scheme is larger, if the scale scraped on the second scraper is washed, water horizontally entering the water tank from the water inlet pipe is washed until the second scraper is, and the scale behind the boss cannot be effectively washed away, the boss is pressed into the second scraper by the pressing rod, although the pressing rod and each plugging rod can also block the horizontally washed scale, the outer diameters of the pressing rod and the plugging rod are smaller than the outer diameter of the boss, the interference degree of the pressing rod and the plugging rod on the scale is smaller than the interference of the boss on the scale, and meanwhile, when large scale is cleaned, the large scale is inevitably collided with the plugging rod and the pressing rod because the water horizontally enters the water tank from the water inlet pipe and generates washing force in the horizontal direction on the scale on the second scraper, the scale is washed away from the drain outlet, large scale lumps are collided with smaller scale lumps, so that the scale is easily discharged from the sewage discharge pipe.

Furthermore, the two lower pressing rods are respectively positioned on two sides of the axis of the fixing plate, and the outer diameter of each lower pressing rod is larger than the width of the convex edge of the boss.

Two depression bars down that set up are used in the both sides of boss respectively, guarantee that the boss can stably retract to the ring channel in, simultaneously, in order to avoid the upper surface of boss to be less than the upper surface of second scraper blade, so set the diameter that is greater than the boss with the diameter of depression bar down, the external width that is greater than the ring groove of depression bar promptly guarantees that the depression bar can not impress the boss and be less than to the second scraper blade.

Furthermore, a bearing matched with the movable rod is further arranged in the fixed plate, and the bearing is sleeved on the movable rod.

Because when the incrustation scale clearance to on the thermal-collecting tube inner wall, the movable rod is in the rotation state, can accurately carry out the shutoff to the hole that leaks in order to guarantee to set up the shutoff pole on the fixed plate bottom, so set up in the fixed plate and be used for the bearing that is being connected to the movable rod, guarantee that the movable rod can not then rotate together when rotating.

Further, first drive assembly and second drive assembly all include box, dwang, drain pipe and a plurality of blade, the box is the cylindric of both ends for enclosed construction, dwang one end is connected with the movable rod, and the other end stretches into to the box in, the blade distributes uniformly in the box and is connected with the dwang, drain pipe one end and the inside intercommunication of box, the other end is located the water tank.

The first transmission assembly is used for driving the movable rods to rotate positively, when the water-saving device is used, water in a high-pressure state is introduced into the first connecting pipe by utilizing an external water pump, the water enters the box body of the first transmission assembly through the first connecting pipe, the water in the high-pressure state acts on the blades, the blades are forced to rotate in the box body, the rotating rods are driven to rotate together, the rotating rods of the first transmission assembly are connected with one of the movable rods, so that the movable rods start to rotate positively, the movable rods are driven to rotate together, and the second scraper plate is moved towards the direction of the water tank; treat that the second scraper blade removes to after flushing with the water tank inner wall, let in high pressure water in to the drain pipe, high pressure water level gets into to the water tank, the incrustation scale that will be located on the second scraper blade is washed away to blow off pipe department and is discharged, then let in high pressure water in to the second connecting tube, high pressure water gets into and gets into to the water tank of second drive assembly through the second connecting tube in, it is just positive to drive this blade, thereby make the movable rod that is connected with this dwang just, it is just along with just to drive each movable rod, force the second scraper blade to return to in the collecting tube, water passes through the drain pipe and gets into to the water tank after the simultaneous action blade, begin to go up water to the water tank, this technical scheme utilizes the current water supply system of solar water heater, drive first actuating mechanism and second actuating mechanism and begin to work, can in time go up water to the water tank after accomplishing the incrustation scale clearance.

Further, all be equipped with the worm wheel on the dwang, still be equipped with two worms in the pivot to worm wheel on first drive assembly and the second drive assembly respectively with in two worms, and first drive assembly and second drive assembly can drive pivot corotation or reversal.

In order to realize clearing up the incrustation scale of attaching to on the water tank inner wall, the event has still set up the worm in the pivot, all set up the worm wheel together with the worm meshing on first drive mechanism and second drive mechanism simultaneously, when first drive mechanism drive dwang corotation, the turbine on this dwang can drive the worm and follow corotation together, thereby make first scraper blade can be clockwise rotation on the water tank inner wall, will attach to the incrustation scale clearance on the water tank inner wall, when second drive mechanism drive dwang reversal, the turbine on this dwang can drive the worm reversal, thereby make first scraper blade be counter-clockwise motion on the water tank inner wall, resume first scraper blade to initial position.

Furthermore, a first switch is further arranged on the water inlet pipe, a second switch is further arranged on the first connecting pipe, a third switch is further arranged on the second connecting pipe, and a fourth switch is further arranged on the sewage discharge pipe.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. the invention relates to a solar water heater with an automatic scale cleaning function, which is characterized in that a first transmission mechanism is arranged to drive a movable rod to rotate, so that a second scraper blade on the movable rod moves towards a water tank to clean scale attached to the inner wall of a heat collecting pipe, a second transmission mechanism is arranged to drive the movable rod to rotate in the opposite direction, so that the second scraper blade on the movable rod returns towards the heat collecting pipe, and meanwhile, when the first transmission mechanism and the second transmission mechanism drive the movable rod to rotate, a rotating shaft arranged in the water tank can be driven to rotate, so that the first scraper blade is driven to rotate on the inner wall of the water tank to clean the scale attached to the inner wall of the water tank;

2. according to the solar water heater with the function of automatically cleaning scale, the circular-ring-structure boss arranged on the second scraper plate can play a certain role in shielding the water leakage hole, so that the scale is prevented from falling into the water leakage hole in the process of scraping the scale of the heat collecting pipe, meanwhile, the raised boss can be pressed into the second scraper plate under the action of the limiting piece, the blocking effect of the boss on the scale is reduced, the scale on the second scraper plate can be flushed to a sewage discharge pipe by water entering from the water inlet pipe horizontally, and the scale cleaning effect is improved;

3. according to the solar water heater with the function of automatically cleaning scale, the arranged plugging rod and the pressing rod can respectively act on the water leakage hole and the boss, so that the blocking effect of the boss on scale is reduced, meanwhile, a large scale can collide with each pressing rod and the plugging rod in the process of horizontally washing the scale to the sewage discharge pipe, and a large scale can collide to a small scale, so that the scale can be effectively discharged conveniently.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a side view of a structure of the present invention;

FIG. 2 is a top view of the structure of the present invention;

FIG. 3 is a top view of a second flight of the present invention;

FIG. 4 is a cross-sectional view of a second flight of the present invention;

FIG. 5 is a schematic view of a first transmission assembly according to the present invention;

FIG. 6 is a schematic structural view of the heat collecting tube and the second scraper of the present invention;

FIG. 7 is a schematic view of another state of the heat collecting tube and the second scraper of the present invention.

Reference numbers and corresponding part names in the drawings:

1-support frame, 2-heat collecting pipe, 3-cleaning component, 5-worm wheel, 7-water tank, 8-first scraper, 9-connecting rod, 10-rotating shaft, 11-water inlet pipe, 12-first connecting pipe, 13-first switch, 14-worm, 15-driving gear, 17-blow-off pipe, 18-second switch, 19-second connecting pipe, 20-third switch, 21-first driving component, 22-second driving component, 23-second scraper, 24-boss, 25-water leakage hole, 26-through hole, 27-elastic component, 28-box body, 29-rotating rod, 30-blade, 31-water outlet pipe, 32-blocking rod, 33-fixing plate, 34-lower pressure rod and 35-movable rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

Example 1

As shown in fig. 1 to 7, the solar water heater with the function of automatically cleaning scale comprises a support frame 1 and a water tank 7 arranged on the support frame 1, wherein a plurality of heat collecting tubes 2 are obliquely arranged on the water tank 7, a water inlet tube 11 is arranged on one circular surface of the water tank 7, cleaning assemblies 3 are arranged in the heat collecting tubes 2, each cleaning assembly 3 comprises a movable rod 35 and a second scraper 23, one end of each movable rod 35 is fixed at the closed end of the heat collecting tube 2, the other end of each movable rod 35 extends into the water tank 7, the outer diameter of each second scraper 23 is matched with the inner diameter of the corresponding heat collecting tube 2, the second scraper 23 is connected with the corresponding movable rod 35 through threads, the movable rods 35 are rotated, and the second scrapers 23 can move towards the water tank 7 in the heat collecting tubes 2; the top of the second scraper 23 is also provided with a boss 24 with a circular ring structure, the boss 24 can retract into the second scraper 23, the top of the second scraper 23 is also provided with a plurality of water leakage holes 25, and the water leakage holes 25 are positioned in the circular ring of the boss 24; the movable rod 35 is further provided with a limiting piece, when the second scraper 23 moves to be flush with the inner wall of the water tank 7, the limiting piece can press the boss 24 into the second scraper 23, and the limiting piece can also plug the water leakage hole 25; the water-saving water tank is characterized in that the movable rods 35 are provided with transmission teeth 15, the transmission teeth 15 are positioned in the water tank 7, two adjacent transmission teeth 15 are meshed with each other, two sides of the water tank 7 are respectively provided with a first connecting pipe 12 and a second connecting pipe 19, the first connecting pipe 12 and the second connecting pipe 19 are both connected with the water inlet pipe 11, the tail end of the first connecting pipe 12 positioned in the water tank 7 is provided with a first transmission component 21, the tail end of the second connecting pipe 19 positioned in the water tank 7 is provided with a second transmission component 22, the first transmission component 21 and the second transmission component 22 are respectively connected with the two movable rods 35, high-pressure water in the first connecting pipe 12 can drive the first transmission component 21 to drive the transmission teeth 15 to rotate forwards, and high-pressure water in the second connecting pipe 19 can drive the second transmission component 22 to drive the transmission teeth 15 to rotate backwards; still be equipped with pivot 10 in the water tank 7, the axis of pivot 10 and the axis collineation of water tank 7 to first drive assembly 21 and second drive assembly 22 can drive pivot 10 corotation or reversal respectively, be equipped with connecting rod 9 on the circumference outer wall of pivot 10, be equipped with the first scraper blade 8 of laminating with the water tank 7 inner wall on the connecting rod 9, still be equipped with blow off pipe 17 on another disc of water tank 7.

Example 2

On the basis of embodiment 1, an annular groove matched with the boss 24 is formed in the top of the second scraper 23, an elastic member is arranged in the annular groove, and the elastic member is connected with the bottom of the boss 24; a through hole 26 is further formed in the center of the second scraper 23, and the movable rod 35 is connected with the through hole 26 through threads.

Example 3

On embodiment 1's basis, the locating part includes fixed plate 33, holding down rod 34 and the shutoff pole 32 that quantity and the same of hole 25 that leaks, fixed plate 33 cover is on movable rod 35 to fixed plate 33 can rotate around the axis of movable rod 35, holding down rod 34 one end is fixed in the bottom of fixed plate 33, and the other end is located the boss 24 chimb directly over, shutoff pole 32 one end is located the bottom of fixed plate 33, the other end and the hole 25 one-to-one that leaks.

Example 4

On the basis of embodiment 3, two downward pressing rods 34 are respectively located on two sides of the axis of the fixing plate 33, and the outer diameter of the downward pressing rods 34 is larger than the width of the convex edge of the boss 24.

Example 5

On the basis of embodiment 3, a bearing matched with the movable rod 35 is further arranged in the fixed plate 33, and the bearing is sleeved on the movable rod 35.

Example 6

On embodiment 1's basis, first drive assembly 21 and second drive assembly 22 all include box 28, dwang 29, drain pipe 31 and a plurality of blade 30, box 28 is the cylindric of both ends for enclosed construction, dwang 29 one end is connected with movable rod 35, and the other end stretches into to the box 28 in, blade 30 distributes uniformly in box 28 and is connected with

dwang

29, 31 one end of drain pipe communicates with the inside of box 28, and the other end is located water tank 7.

Example 7

On the basis of embodiment 6, the rotating rod 29 is provided with a worm wheel 5, the rotating shaft 10 is further provided with two worms 14, the worm wheels 5 on the first transmission assembly 21 and the second transmission assembly 22 are respectively arranged in the two worms 14, and the first transmission assembly 21 and the second transmission assembly 22 can drive the rotating shaft 10 to rotate forwards or backwards.

Example 8

On the basis of the embodiment 1, the water inlet pipe 11 is further provided with a first switch 13, the first connecting pipe 12 is further provided with a second switch 18, the second connecting pipe 12 is further provided with a third switch 20, and the sewage discharge pipe 17 is further provided with a fourth switch.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A solar water heater with automatic scale cleaning function comprises a support frame (1), a water tank (7) arranged on the support frame (1), a plurality of heat collecting pipes (2) are obliquely arranged on the water tank (7), a water inlet pipe (11) is arranged on one circular surface of the water tank (7), it is characterized in that cleaning components (3) are arranged in the heat collecting pipes (2), the cleaning components (3) comprise movable rods (35) and second scraping plates (23), one end of the movable rod (35) is fixed at the closed end of the heat collecting pipe (2), the other end extends into the water tank (7), the outer diameter of the second scraper (23) is matched with the inner diameter of the heat collecting pipe (2), the second scraper (23) is connected with the movable rod (35) through threads, the movable rod (35) is rotated, and the second scraper (23) can move towards the water tank (7) in the heat collecting pipe (2); the top of the second scraper (23) is also provided with a boss (24) with a circular ring structure, the boss (24) can retract into the second scraper (23), the top of the second scraper (23) is also provided with a plurality of water leakage holes (25), and the water leakage holes (25) are positioned in the circular ring of the boss (24); the movable rod (35) is also provided with a limiting piece, when the second scraper (23) moves to be flush with the inner wall of the water tank (7), the limiting piece can press the boss (24) into the second scraper (23), and the limiting piece can also plug the water leakage hole (25); the water-saving water dispenser is characterized in that transmission teeth (15) are arranged on the movable rods (35), the transmission teeth (15) are located in the water tank (7), two adjacent transmission teeth (15) are meshed with each other, a first connecting pipe (12) and a second connecting pipe (19) are arranged on two sides of the water tank (7) respectively, the first connecting pipe (12) and the second connecting pipe (19) are connected with the water inlet pipe (11), a first transmission assembly (21) is arranged at the tail end of the first connecting pipe (12) located in the water tank (7), a second transmission assembly (22) is arranged at the tail end of the second connecting pipe (19) located in the water tank (7), the first transmission assembly (21) and the second transmission assembly (22) are connected with the two movable rods (35) respectively, high-pressure water in the first connecting pipe (12) can drive the first transmission assembly (21) to drive the transmission teeth (15), and high-pressure water in the second connecting pipe (19) can drive the second transmission assembly (22) to drive the transmission teeth (15) to rotate reversely; a rotating shaft (10) is further arranged in the water tank (7), the axis of the rotating shaft (10) is collinear with the axis of the water tank (7), the first transmission assembly (21) and the second transmission assembly (22) can respectively drive the rotating shaft (10) to rotate forwards or backwards, a connecting rod (9) is arranged on the outer wall of the circumference of the rotating shaft (10), a first scraper (8) attached to the inner wall of the water tank (7) is arranged on the connecting rod (9), and a sewage discharge pipe (17) is further arranged on the other circular surface of the water tank (7); the locating part includes fixed plate (33), pushes down pole (34) and quantity and the same shutoff pole (32) of hole (25) that leaks, fixed plate (33) cover is on movable rod (35) to fixed plate (33) can rotate round the axis of movable rod (35), push down pole (34) one end is fixed in the bottom of fixed plate (33) down, and the other end is located boss (24) chimb directly over, shutoff pole (32) one end is located the bottom of fixed plate (33), the other end and the hole (25) one-to-one that leaks.

2. The solar water heater with the function of automatically cleaning scale according to claim 1, characterized in that the top of the second scraper (23) is provided with an annular groove matched with the boss (24), an elastic member is arranged in the annular groove, and the elastic member is connected with the bottom of the boss (24); the center of the second scraper (23) is also provided with a through hole (26), and the movable rod (35) is connected with the through hole (26) through threads.

3. The solar water heater with the function of automatically cleaning the scale according to claim 1, wherein the two pressing rods (34) are respectively positioned at two sides of the axis of the fixing plate (33), and the outer diameter of the pressing rods (34) is larger than the width of the convex edge of the boss (24).

4. The solar water heater with the function of automatically cleaning the scale according to claim 1, characterized in that a bearing matched with the movable rod (35) is further arranged in the fixed plate (33), and the bearing is sleeved on the movable rod (35).

5. The solar water heater with the function of automatically cleaning the scale according to claim 1, wherein the first transmission assembly (21) and the second transmission assembly (22) each comprise a box body (28), a rotating rod (29), a drain pipe (31) and a plurality of blades (30), the box body (28) is cylindrical with two closed ends, one end of the rotating rod (29) is connected with the movable rod (35), the other end of the rotating rod extends into the box body (28), the blades (30) are uniformly distributed in the box body (28) and connected with the rotating rod (29), one end of the drain pipe (31) is communicated with the inside of the box body (28), and the other end of the drain pipe is located in the water tank (7).

6. The solar water heater with the function of automatically cleaning the scale according to claim 5, wherein the rotating rod (29) is provided with a worm wheel (5), the rotating shaft (10) is further provided with two worms (14), the worm wheels (5) on the first transmission assembly (21) and the second transmission assembly (22) are respectively arranged in the two worms (14), and the first transmission assembly (21) and the second transmission assembly (22) can drive the rotating shaft (10) to rotate forwards or backwards.

7. The solar water heater with the function of automatically cleaning the scale according to claim 1, wherein a first switch (13) is further arranged on the water inlet pipe (11), a second switch (18) is further arranged on the first connecting pipe (12), a third switch (20) is further arranged on the second connecting pipe (19), and a fourth switch is further arranged on the sewage discharge pipe (17).