Shading device for solar water heater

Abstract

The utility model relates to the technical field of solar water heaters, and discloses a shading device for a solar water heater, which comprises a shading component, a fixing component and a rolling component, the shading component comprises a shading roller shutter plate, and a first mounting side plate and a second mounting side plate are fixed at two ends of the shading roller shutter plate. The fixing assembly comprises a fixing plate movably connected to the second mounting side plate, fixing clamping plates are arranged at the two ends of the fixing plate, a shading roller shutter plate is arranged, and the shading roller shutter plate is formed by equidistantly mounting a plurality of stainless steel plates on cloth woven by a polytetrafluoroethylene material, so that the service life of the shading roller shutter plate is prolonged; and meanwhile, the shading roller shutter plate can be wound, meanwhile, the stainless steel material plays a role in gravity, the shading roller shutter plate can be firmly attached to the vacuum tube, shaking is avoided, meanwhile, the shading roller shutter plate has certain pressure resistance, and good safety is provided while shading is conducted on the vacuum tube.

Description

Technical Field

[0001] The utility model relates to the technical field of solar water heaters, in particular to a light-shielding device for a solar water heater. Background Technique

[0002] A solar water heater is a heating device that converts solar energy into heat energy, heating water from a low temperature to a high temperature to meet the hot water use of people in life and production. Solar water heaters are divided into vacuum tube solar water heaters and flat plate solar water heaters according to their structural forms. The vacuum tube solar water heater is mainly used, occupying 95% of the domestic market share. The vacuum tube household solar water heater is composed of a heat collecting tube, a water storage tank, brackets and other related parts. The conversion of solar energy into heat energy mainly depends on the vacuum heat collecting tube. The vacuum heat collecting tube uses the principle that hot water floats and cold water sinks to make the water produce microcirculation to obtain the required hot water.

[0003] According to the Chinese utility model patent number: CN206583119U, a light-shielding device is proposed. It uses a light-shielding cloth to cover the vacuum tube. However, under the blowing of the wind, the light-shielding cloth will shake, resulting in poor light-shielding effect. At the same time, the light-shielding cloth will be corroded during long-term use, and it does not have anti-pressure protection effect. In a harsh environment, it is easy to cause damage to the vacuum tube. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a light-shielding device for a solar water heater, which has the advantages of being able to extend the service life of the light-shielding device and having a protective effect while shading the vacuum tube, and solves the problems that the current light-shielding method uses a light-shielding cloth for shading, but under the blowing of the wind, the light-shielding cloth is easy to shake, cannot obtain a sufficient light-shielding effect, is easy to be corroded, has a short service life, and does not have anti-pressure protection.

[0005] To achieve the above object, the utility model provides the following technical solution: A light-shielding device for a solar water heater, including a light-shielding component, a fixing component and a winding component. The light-shielding component includes a light-shielding rolling curtain board. First installation side plates and second installation side plates are fixed at both ends of the light-shielding rolling curtain board. The light-shielding rolling curtain board is specifically composed of a plurality of stainless steel plates of the same length and is adhesively bonded at equal intervals on a cloth woven from polytetrafluoroethylene material. Polytetrafluoroethylene has good corrosion resistance, heat resistance and wear resistance, and installation side plates of the same size are installed at both ends.

[0006] The fixing component includes a fixing plate movably connected to the second mounting side plate. Fixing clamps are provided at both ends of the fixing plate. The second mounting side plate is mounted on the fixing plate. The fixing clamps at both ends of the fixing plate clamp the top positions of the brackets that slope downward on both sides of the solar energy, so that the bottom of the fixing plate fits against the top position of the vacuum tube, and the light-shielding rolling curtain plate covers the vacuum tube to block the vacuum tube;

[0007] The winding component includes a winder movably connected to the first mounting side plate. Stabilizing clamps are provided at both ends of the winder, and the length of the winder coincides with that of the fixing plate. The winder is used to wind the light-shielding rolling curtain plate. At the same time, the stabilizing clamps are slidably connected to the brackets that slope downward on both sides of the solar energy to improve the stability of the movement of the winder.

[0008] When installing and using the light-shielding device on the solar water heater, the second mounting side plate is movably connected to the installation groove, and it is ensured that the installation button is inserted into the installation hole. Then, the second mounting side plate is attached to the top of the vacuum tube, and the fixing clamps at both ends are movably sleeved on the brackets that slope downward on both sides of the solar energy. By rotating the control knob on the side, the positioning rod gradually moves into the fixing clamp and closely adheres to the side of the bracket to fix the position of the second mounting side plate. Then, the first mounting side plate is attached to the side of the first winding roller, passes through the space between the second winding roller and the auxiliary roller from the bottom, and is fixed to the side of the second winding roller. Then, the winder is placed above the vacuum tube, and the stabilizing clamps at both ends are slidably connected to the brackets that slope downward on both sides of the solar energy. By controlling the operation of the micro motor, its output end drives the second rotating gear to rotate, and drives the first rotating gear to rotate synchronously through the rotating track. At this time, the first rotating gear drives the corresponding interlocking gear to operate, and drives the other interlocking gears sleeved inside through the interlocking track to make the rotating wheel rotate while fitting against the side of the bracket. At this time, the winder moves on the vacuum tube. At the same time, control the operation of the driving motor, its output end drives the driving gear to rotate, and drives the transmission gear to rotate through the transmission track, so that the second winding roller rotates to wind the light-shielding rolling curtain plate. At this time, the vacuum tube is exposed. By controlling the reverse rotation of the rotating wheel, the winder moves downward, and at the same time, the first and second winding rollers rotate in the reverse direction to release the light-shielding rolling curtain plate, which fits against the vacuum tube to block the vacuum tube.

[0009] As a further improvement of the above solution, the second mounting side plate is penetrated with an installation hole. At the same time, an installation groove is provided at the bottom of the fixing plate, and an installation button is arranged in the installation groove. The second mounting side plate is movably connected in the installation groove, and at the same time, the installation button is clamped in the installation hole;

[0010] Through the above technical solution, the side part of the second mounting side plate fits well with the mounting groove, and the opened mounting holes correspond to the mounting buttons. When the second mounting side plate is installed in the mounting groove, the mounting holes are sleeved on the side part of the mounting buttons to achieve the connection function. When the second mounting side plate is installed at the topmost end of the vacuum tube, it enables the light-shielding rolling curtain plate to cover downward from the topmost end of the vacuum tube.

[0011] As a further improvement of the above solution, a control knob is movably hinged to the side part of the fixed clamping plate. A positioning rod is threadedly connected inside the control knob, and the positioning rod penetrates through the fixed clamping plate.

[0012] Through the above technical solution, by rotating the control knob clockwise and counterclockwise, the positioning rod expands and contracts inside the fixed clamping plate. When the front end of the positioning rod closely adheres to the side part of the bracket, the position of the fixed plate is fixed. When the front end of the positioning rod disengages from the bracket, the fixed plate can be disassembled or its position adjusted.

[0013] As a further improvement of the above solution, a first winding roller and a second winding roller are movably hinged inside the winder. Connection buttons are fixed at both ends of the second winding roller, and connection side plates are movably hinged to the connection buttons.

[0014] Through the above technical solution, the first winding roller and the second winding roller are installed at both ends of the connection side plate, and the second winding roller rotates to wind up the light-shielding rolling curtain plate.

[0015] As a further improvement of the above solution, an auxiliary roller is movably hinged inside the winder. A limit sliding button is fixed at one end of the auxiliary roller. At the same time, a stable side plate is movably sleeved on the side part of the connection button on the second winding roller. A limit sliding groove is opened inside the stable side plate, and the limit sliding button is slidably connected inside the limit sliding groove.

[0016] Through the above technical solution, when the second winding roller winds up the light-shielding rolling curtain plate, as the thickness increases, the auxiliary roller fits against the side part of the light-shielding rolling curtain plate to assist in the winding operation, causing the limit sliding button to move inside the limit sliding groove and adjusting the distance between the auxiliary roller and the second winding roller.

[0017] As a further improvement of the above solution, a stable sliding rod is fixed inside the limit sliding groove. The limit sliding button is slidably connected to the stable sliding rod. At the same time, a tension spring is movably sleeved on the stable sliding rod, and both ends of the tension spring are in contact between the limit sliding button and the limit sliding groove.

[0018] Through the above technical solution, the tension spring unfolds to push the limit sliding button, causing the limit sliding button to move forward, enabling the auxiliary roller to closely adhere to the side part of the wound light-shielding rolling curtain plate and improving the stability of the winding.

[0019] As a further improvement of the above solution, a driving box is fixed on the coiler, a driving motor is fixed inside the driving box, a driving gear is fixed at the output end of the driving motor, and a transmission gear is fixed on the connecting button at the same time. A transmission track is movably sleeved on the sides of the driving gear and the transmission gear;

[0020] Through the above technical solution, after the driving motor operates, its output end drives the driving gear to rotate, and the transmission gear is driven to rotate through the transmission track.

[0021] As a further improvement of the above solution, a rotating wheel is movably hinged to the side of the stabilizing clamping plate, and the side of the rotating wheel protrudes from the inner side of the stabilizing clamping plate;

[0022] Through the above technical solution, a plurality of rotating wheels are movably hinged to the side of the stabilizing clamping plate. When the stabilizing clamping plate is movably sleeved on the inclined bracket of the solar water heater, the rotating wheels are attached to the side of the bracket. When the rotating wheels rotate, under the frictional resistance between the rotating wheels and the side of the bracket, the coiler moves.

[0023] As a further improvement of the above solution, a linkage gear is fixed on the rotating wheel, and a linkage track is movably sleeved on the side of the linkage gear;

[0024] Through the above technical solution, a linkage gear is fixed on each rotating wheel and is sleeved inside the same linkage track. When any one of the rotating wheels rotates, the other rotating wheels can be driven to rotate simultaneously in the same direction.

[0025] As a further improvement of the above solution, a first rotating gear is fixed on the linkage gear, and a micro motor is fixed on the side of the stabilizing clamping plate at the same time. A second rotating gear is fixed at the output end of the micro motor. A rotating track is movably sleeved on the sides of the first rotating gear and the second rotating gear;

[0026] Through the above technical solution, when the micro motor operates, its output end drives the second rotating gear to rotate, and the first rotating gear is driven to rotate through the rotating track, so that the linkage gear rotates simultaneously.

[0027] Compared with the prior art, the present utility model provides a shading device for a solar water heater, which has the following beneficial effects:

[0028] 1. For the shading device for a solar water heater, by providing a shading rolling curtain board, the shading rolling curtain board is formed by equidistantly installing a plurality of stainless steel plates on a fabric woven from polytetrafluoroethylene material, which increases its service life. At the same time, while the shading rolling curtain board can be wound up, the gravity effect is achieved through the stainless steel material, and it can firmly adhere to the vacuum tube, avoiding shaking, and at the same time having a certain compressive capacity, so that while shading the vacuum tube, good safety is provided.

[0029] 2. The light-shielding device for a solar water heater has one end of the light-shielding rolling curtain plate installed on the fixed plate, and the other end installed on the winding roller in the winder. The fixed plate is installed at the top of the support of the solar energy through the fixed clamping plate, so as to fix one end of the light-shielding rolling curtain plate at the top position of the vacuum tube. The winder rotates through the rotating wheel, drives the winder to move on the vacuum tube, and at the same time, by controlling the output end of the driving motor to rotate clockwise or counterclockwise, the effect of winding or releasing the light-shielding rolling curtain plate is realized, improving the convenience of its use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall external structure of the device of the present utility model;

[0031] Figure 2 It is a schematic diagram of the overall structure of the light-shielding rolling curtain plate of the present utility model;

[0032] Figure 3 It is a schematic diagram of the bottom structure of the mounting plate of the present utility model;

[0033] Figure 4 For the present utility model Figure 3 Schematic diagram of the structure at A;

[0034] Figure 5 It is a schematic diagram of the top structure of the winder of the present utility model;

[0035] Figure 6 It is a schematic diagram of the bottom structure of the winder of the present utility model;

[0036] Figure 7 It is a schematic diagram of the installation structure of the winding roller and the auxiliary roller of the present utility model;

[0037] Figure 8 For the present utility model Figure 7 Schematic diagram of the structure at B;

[0038] Figure 9 It is a schematic diagram of the transmission structure of the micro motor and the rotating roller of the present utility model.

[0039] In the drawings, the list of components represented by each reference numeral is as follows:

[0040] 1. Light-shielding assembly; 101. Light-shielding rolling curtain plate; 102. First mounting side plate; 103. Second mounting side plate; 104. Mounting hole;

[0041] 2. Fixing assembly; 201. Fixed plate; 202. Installation groove; 203. Installation button; 204. Fixed clamping plate; 205. Regulation button; 206. Positioning rod;

[0042] 3. Rewinding assembly; 301. Rewinder; 302. First rewinding roller; 303. Second rewinding roller; 304. Connection button; 305. Connection side plate; 306. Auxiliary roller; 307. Limit sliding button; 308. Stable side plate; 309. Limit sliding groove; 310. Stable sliding rod; 311. Tension spring; 312. Driving box; 313. Driving motor; 314. Driving gear; 315. Transmission track; 316. Transmission gear; 317. Stable clamping plate; 318. Rotating wheel; 319. Linkage gear; 320. Linkage track; 321. First rotating gear; 322. Micro motor; 323. Second rotating gear; 324. Rotating track. Detailed implementation manner

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0044] Please refer to Figures 1-9 As shown, the shading device for a solar water heater proposed in this embodiment includes a shading assembly 1, a fixing assembly 2, and a rewinding assembly 3. The shading assembly 1 includes a shading rolling curtain plate 101. Both ends of the shading rolling curtain plate 101 are fixed with a first installation side plate 102 and a second installation side plate 103. The shading rolling curtain plate 101 is specifically composed of multiple stainless steel plates of the same length and is adhesively bonded at equal intervals on a cloth woven from polytetrafluoroethylene material. Polytetrafluoroethylene has good corrosion resistance, heat resistance, and wear resistance, and both ends are provided with installation side plates of the same size. The fixing assembly 2 includes a fixing plate 201 movably connected to the second installation side plate 103. Both ends of the fixing plate 201 are provided with fixing clamping plates 204. The second installation side plate 103 is installed on the fixing plate 201. The fixing clamping plates 204 at both ends of the fixing plate 201 are clamped at the top positions of the brackets inclined downward on both sides of the solar energy, so that the bottom of the fixing plate 201 fits on the top of the vacuum tube, and the shading rolling curtain plate 101 covers the vacuum tube to block the vacuum tube. The rewinding assembly 3 includes a rewinder 301 movably connected to the first installation side plate. Both ends of the rewinder 301 are provided with stable clamping plates 317, and the length of the rewinder 301 is consistent with that of the fixing plate 201. The rewinder 301 is used to wind the shading rolling curtain plate 101. At the same time, the stable clamping plates 317 are slidably connected to the brackets inclined downward on both sides of the solar energy to improve the stability of the movement of the rewinder 301.

[0045] The working principle of the light-shielding device for a solar water heater proposed in this embodiment is as follows: During use, the second mounting side plate 103 is movably connected to the mounting groove 202, and it is ensured that the mounting button 203 is inserted into the mounting hole 104. Then, the second mounting side plate 103 is attached to the top of the vacuum tube, and the fixed clamping plates 204 at both ends are movably sleeved on the brackets that slope downward on both sides of the solar energy. By rotating the control knob 205 on the side, the positioning rod 206 gradually moves into the fixed clamping plate 204 and closely adheres to the side of the bracket to fix the position of the second mounting side plate 103. Next, the first mounting side plate 102 is attached to the side of the first winding roller 302, passes through between the second winding roller 303 and the auxiliary roller 306 from the bottom, and is fixed to the side of the second winding roller 303. Then, the winder 301 is placed above the vacuum tube, and the stable clamping plates 317 at both ends are slidably connected to the brackets that slope downward on both sides of the solar energy. By controlling the operation of the micro motor 322, its output end drives the second rotating gear 323 to rotate, and drives the first rotating gear 321 to rotate synchronously through the rotating track 324. At this time, the first rotating gear 321 drives the corresponding interlocking gear 319 to operate, and drives the other interlocking gears 319 sleeved inside through the interlocking track 320, so that the rotating wheel 318 rotates while adhering to the side of the bracket. At this time, the winder 301 moves on the vacuum tube. At the same time, the driving motor 313 is controlled to operate, its output end drives the driving gear 314 to rotate, and drives the transmission gear 316 to rotate through the transmission track 315, so that the second winding roller 303 rotates to wind up the light-shielding curtain plate 101. At this time, the vacuum tube is exposed. By controlling the reverse rotation of the rotating wheel 318, the winder 301 moves downward, and at the same time, the first and second winding rollers rotate in the reverse direction to release the light-shielding curtain plate 101, which adheres to the vacuum tube to block the vacuum tube. Embodiment

[0046] Please refer to Figures 1-9As shown, the shading device for a solar water heater proposed in this embodiment is based on Embodiment 1. This embodiment further includes that the second mounting side plate 103 is penetrated with mounting holes 104. At the same time, the bottom of the fixing plate 201 is provided with a mounting groove 202. A mounting button 203 is arranged in the mounting groove 202. The second mounting side plate 103 is movably connected in the mounting groove 202. At the same time, the mounting button 203 is clamped in the mounting hole 104. The side of the fixed clamping plate 204 is movably hinged with a regulating button 205. A positioning rod 206 is threadedly connected in the regulating button 205, and the positioning rod 206 penetrates through the fixed clamping plate 204. Both ends of the first winding roller 302 and the second winding roller 303 movably hinged in the winder 301 are fixed with connection buttons 304, and a connection side plate 305 is movably hinged on the connection button 304. An auxiliary roller 306 is movably hinged in the winder 301. A limiting sliding button 307 is fixed at one end of the auxiliary roller 306. At the same time, a stabilizing side plate 308 is movably sleeved on the side of the connection button 304 on the second winding roller 303. A limiting sliding groove 309 is opened in the stabilizing side plate 308. The limiting sliding button 307 is slidably connected in the limiting sliding groove 309. A stabilizing sliding rod 310 is fixed in the limiting sliding groove 309. The limiting sliding button 307 is slidably connected on the stabilizing sliding rod 310. At the same time, a tension spring 311 is movably sleeved on the stabilizing sliding rod 310. Both ends of the tension spring 311 are attached between the limiting sliding button 307 and the limiting sliding groove. A driving box 312 is fixed on the winder 301. A driving motor 313 is fixed in the driving box 312. The output end of the driving motor 313 is fixed with a driving gear 314. At the same time, a transmission gear 316 is fixed on the connection button 304. A transmission track 315 is movably sleeved on the sides of the driving gear 314 and the transmission gear 316. The side of the stabilizing clamping plate 317 is movably hinged with a rotating wheel 318, and the side of the rotating wheel 318 protrudes from the inner side of the stabilizing clamping plate 317. A linkage gear 319 is fixed on the rotating wheel 318. A linkage track 320 is movably sleeved on the side of the linkage gear 319. A first rotating gear 321 is fixed on the linkage gear 319. At the same time, a micro motor 322 is fixed on the side of the stabilizing clamping plate 317. The output end of the micro motor 322 is fixed with a second rotating gear 323. A rotating track 324 is movably sleeved on the sides of the first rotating gear 321 and the second rotating gear 323;

[0047] In this solution, the side of the second mounting side plate 103 fits inside the mounting groove 202, and the opened mounting holes 104 correspond to the mounting buttons 203. When the second mounting side plate 103 is installed in the mounting groove 202 such that the mounting holes 104 are sleeved on the sides of the mounting buttons 203, the connection function is achieved. When the second mounting side plate 103 is installed at the topmost end of the vacuum tube, the light-shielding rolling curtain plate 101 covers downward from the topmost end of the vacuum tube. By rotating the control knob 205 clockwise and counterclockwise, the positioning rod 206 expands and contracts within the fixed clamping plate 204. When the front end of the positioning rod 206 closely adheres to the side of the bracket, the position of the fixed plate 201 is fixed. When the front end of the positioning rod 206 disengages from the bracket, the fixed plate 201 can be disassembled or its position adjusted. The first winding roller 302 and the second winding roller 303 are installed at both ends of the connecting side plate 305. By rotating the second winding roller 303, the function of winding the light-shielding rolling curtain plate 101 is achieved. When the second winding roller 303 winds the light-shielding rolling curtain plate 101, as the thickness increases, the auxiliary roller 306 adheres to the side of the light-shielding rolling curtain plate 101 to assist in the winding operation, causing the limit sliding button 307 to move within the limit sliding groove 309 to adjust the distance between the auxiliary roller 306 and the second winding roller 303. The tension spring 311 unfolds to push the limit sliding button 307, causing the limit sliding button 307 to move forward so that the auxiliary roller 306 can closely adhere to the side of the wound light-shielding rolling curtain plate 101, improving the stability of winding. After the driving motor 313 operates, its output end drives the driving gear 314 to rotate, and through the transmission track 315, drives the transmission gear 316 to rotate. Multiple rotating wheels 318 are movably hinged to the side of the stabilizing clamping plate 317. When the stabilizing clamping plate 317 is movably sleeved on the inclined bracket of the solar water heater, the rotating wheels 318 adhere to the side of the bracket. When the rotating wheels 318 rotate, under the frictional resistance with the side of the bracket, the winder 301 moves. A linkage gear 319 is fixed on each rotating wheel 318 and is sleeved within the same linkage track 320. When any one of the rotating wheels 318 rotates, it can drive the other rotating wheels 318 to rotate simultaneously in the same direction. When the micro motor 322 operates, its output end drives the second rotating gear 323 to rotate, and through the rotating track 324, drives the first rotating gear 321 to rotate, causing the linkage gears 319 to rotate simultaneously.

[0048] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shading device for a solar water heater, comprising a shading component, a fixing component and a winding component, characterized in that: The shading assembly includes a shading rolling shutter plate, and a first mounting side plate and a second mounting side plate are fixed at both ends of the shading rolling shutter plate; The fixing assembly comprises a fixing plate movably connected to the second mounting side plate, and fixing clamping plates are arranged at both ends of the fixing plate; The winding assembly comprises a winding machine movably connected to the first mounting side plate, and stabilizing clamping plates are arranged at both ends of the winding machine, and the length of the winding machine and the fixing plate are consistent.

2. A shading device for a solar water heater according to claim 1, characterized in that: The second mounting side plate is penetrated with a mounting hole, and a mounting groove is provided at the bottom of the fixing plate, a mounting button is arranged in the mounting groove, the second mounting side plate is movably connected in the mounting groove, and the mounting button is snap-fitted into the mounting hole.

3. A shading device for a solar water heater according to claim 1, characterized in that: A regulating button is movably hinged on the side of the fixed splint, a positioning rod is threadedly connected to the regulating button, and the positioning rod runs through the fixed splint.

4. A shading device for a solar water heater according to claim 1, characterized in that: The first winding roller and the second winding roller are movably hinged in the reel, and both ends of the reel are fixed with connecting buttons, and the connecting buttons are movably hinged with connecting side plates.

5. A shading device for a solar water heater according to claim 4, characterized in that: An auxiliary roller is movably hinged in the reel, and a limit slide button is fixed at one end of the auxiliary roller. At the same time, a stabilizing side plate is movably sleeved on the side of the connecting button on the second reel, and a limit slide groove is provided in the stabilizing side plate, and the limit slide button is slidably connected in the limit slide groove.

6. A shading device for a solar water heater according to claim 5, characterized in that: A stabilizing slide rod is fixed in the limiting slide groove, the limiting slide button is slidably connected to the stabilizing slide rod, and a tension spring is movably sleeved on the stabilizing slide rod, and two ends of the tension spring are fitted between the limiting slide button and the limiting slide groove.

7. A shading device for a solar water heater according to claim 5, characterized in that: A drive box is fixed on the reel, a drive motor is fixed in the drive box, a drive gear is fixed on the output end of the drive motor, and a transmission gear is fixed on the connecting button. The drive gear and the side of the transmission gear are movably sleeved with a transmission crawler.

8. A shading device for a solar water heater according to claim 1, characterized in that: The side of the stabilizing splint is movably hinged with a rotating wheel, and the side of the rotating wheel protrudes from the inner side of the stabilizing splint.

9. A shading device for a solar water heater according to claim 8, characterized in that: A linkage gear is fixed on the rotating wheel, and a linkage track is movably sleeved on the side of the linkage gear.

10. A shading device for a solar water heater according to claim 9, characterized in that: A first rotating gear is fixed on the linkage gear, and a micro motor is fixed on the side of the stabilizing clamp. A second rotating gear is fixed on the output end of the micro motor. The sides of the first rotating gear and the second rotating gear are movably sleeved with rotating tracks.

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