A water heater antifreeze protection structure and control method thereof

Abstract

The present invention belongs to the technical field of water heater protection, and specifically discloses a water heater antifreeze protection structure and a control method thereof, comprising a shell, a closed combustion chamber is fixedly connected inside the shell, a water tank is fixedly connected to the top of the closed combustion chamber, a double electromagnetic control proportional valve is fixedly connected to one side of the shell, a fan is fixedly connected to the bottom of the closed combustion chamber, a gas inlet is fixedly connected to the bottom of the closed combustion chamber on one side of the fan, a cold water inlet pipe is fixedly connected to one side of the water tank, an antifreeze mechanism is fixedly connected to the outside of the shell, and an internal cleaning mechanism is arranged on the top of the antifreeze mechanism. The antifreeze mechanism can heat the inside of the water heater by the stored heat energy when the inside of the water heater is too cold, so as to play an antifreeze role. When the antifreeze mechanism has no heat energy, it is heated by electric energy, so that multiple heating methods are realized, electric energy is saved, and environmental protection is played.

Description

Technical Field

[0001] The invention belongs to the technical field of water heater protection, and specifically discloses a water heater antifreeze protection structure and a control method thereof. Background Art

[0002] A water heater is a household appliance whose main function is to quickly heat water for home or commercial use through the conversion of electrical or gas heat energy. Water heaters are generally divided into two categories: storage type and instantaneous type. Storage type water heaters preheat and store a certain amount of hot water, while instantaneous water heaters heat the water flow in real time as needed.

[0003] The antifreeze protection structure of the water heater is a series of measures designed to prevent the internal freezing of the water heater in a low temperature environment. This ensures that the water temperature inside the water heater can be maintained above a certain level even when the water heater is not in use, avoiding damage to the water heater or affecting its normal use due to freezing.

[0004] The water heater antifreeze protection structure in the prior art generally requires electric heating inside the water heater to prevent freezing, but each antifreeze can only be heated by electricity, the heating method is single, and it cannot save electricity and has no environmental protection effect. Summary of the invention

[0005] In view of this, the technical problem to be solved by the present invention is to propose a water heater antifreeze protection structure and a control method thereof, so as to solve the problem that the prior art can only use electricity for heating and antifreeze, the heating method is single, electric energy cannot be saved, and thus has no environmental protection effect.

[0006] To achieve the above objectives, the present invention provides an antifreeze protection structure for a water heater, comprising a shell, a closed combustion chamber fixedly connected to the interior of the shell, a water tank fixedly connected to the top of the closed combustion chamber, a double electromagnetic control proportional valve fixedly connected to one side of the interior of the shell, a fan fixedly connected to the bottom of the closed combustion chamber, a gas inlet fixedly connected to the bottom of the closed combustion chamber on one side of the fan, a cold water inlet pipe fixedly connected to one side of the water tank, an antifreeze mechanism fixedly connected to the outside of the shell, an internal cleaning mechanism provided on the top of the antifreeze mechanism, a connecting mechanism provided on the outside of the antifreeze mechanism, and an exhaust hole fixedly connected to the top of the water tank.

[0007] In the above technical scheme, preferably, the antifreeze mechanism includes an outer shell, the outside of the outer shell is fixedly connected to the outside of the shell, the outside of the outer shell is fixedly connected to a water pump, the input end of the water pump is fixedly connected to a water pumping pipe, the bottom end of the water pumping pipe is fixedly connected to the bottom of the outer shell, the output end of the water pump is fixedly connected to a water outlet pipe, the end of the water outlet pipe away from the water pump is fixedly connected to the outside of the internal cleaning mechanism, the outside of the water tank is provided with a heat conducting pipe, one end of the heat conducting pipe is fixedly connected to the bottom of the outer shell, the other end of the heat conducting pipe is fixedly connected to the outside of the internal cleaning mechanism, a cavity is opened inside the outer shell, a heating wire is fixedly connected inside the cavity, an electrical plug is fixedly connected to the bottom of the outer shell, and the two ends of the heating wire are respectively fixedly connected to the positive and negative poles of the electrical plug.

[0008] In the above technical scheme, preferably, the internal cleaning mechanism includes a mounting shell, the bottom of the mounting shell is fixedly connected to the top of the outer shell, one end of the water outlet pipe away from the water pump is fixedly connected to the outside of the mounting shell, the other end of the heat conduction pipe is fixedly connected to the outside of the mounting shell, the interior of the mounting shell is rotatably connected with an impeller, the bottom of the impeller is fixedly connected with a rotating shaft, both sides of the outside of the rotating shaft are fixedly connected with mounting plates, a mounting groove is opened inside the mounting plate, a plurality of springs are fixedly connected inside the mounting groove, a limiting plate is slidably connected inside the mounting groove, a connecting plate is fixedly connected on the side of the limiting plate away from the spring one, a cleaning scraper is fixedly connected on the side of the connecting plate away from the limiting plate, a slag discharge pipe is fixedly connected to the outer bottom end of the outer shell, and a sealing cover is threadedly connected to the side of the slag discharge pipe away from the outer shell.

[0009] In the above technical scheme, preferably, the connecting mechanism includes a mounting tube, a side of the mounting tube close to the shell is fixedly connected to a side of the shell away from the shell, the interior of the mounting tube is fixedly connected with a mounting ring, the side of the mounting ring away from the shell is fixedly connected with a plurality of fixing columns, the side of the fixing column away from the mounting ring is fixedly connected with a limiting ring, the outside of the limiting ring is slidingly connected with a movable shell, the side of the limiting ring away from the fixing column is fixedly connected with a spring 2, one end of the spring 2 away from the limiting ring is fixedly connected to the inside of the movable shell, two bending grooves are provided inside the mounting tube, an external pipe is provided inside the mounting tube, the outside of the external pipe is fixedly connected with two clamping columns, and the clamping columns are engaged with the bending grooves.

[0010] In the above technical solution, preferably, a gas interface is fixedly connected to the bottom of the gas inlet, and the outside of the gas interface is fixedly connected to the bottom of the shell.

[0011] In the above technical solution, preferably, a hot water outlet interface is fixedly connected to the bottom of the shell, a hot water pipe is fixedly connected to the outside of the water tank, and the bottom of the hot water pipe is fixedly connected to the top of the hot water outlet interface.

[0012] In the above technical solution, preferably, the bottom of the cold water inlet pipe passes through the bottom of the shell, and the bottom of the rotating shaft is rotatably connected to the inner bottom end of the shell.

[0013] In the above technical solution, preferably, the external thread connection of the mounting pipe is provided with a protective thread shell, and the protective thread shell is sleeved on the outside of the external pipe.

[0014] In the above technical solution, preferably, a display is fixedly connected to the outside of the shell, and a side of the cleaning scraper away from the rotating shaft is in contact with the inner wall of the shell.

[0015] A control method for a water heater antifreeze protection structure comprises the following steps: Step 1: When there is no hot water inside the water pump, connect the power plug to the power supply, heat the liquid inside the shell, control the water pump to start, and the input end of the water pump draws the liquid inside the shell through the pumping pipe, and passes it into the installation shell through the outlet pipe, and then enters the inside of the heat conduction pipe through the installation shell; Step 2: The hot liquid passes through the inside of the heat pipe, and the heat in the heat pipe is transferred to the inside of the water tank by heat conduction, thereby preventing the internal temperature of the water tank from being too low; Step 3: When there is temperature inside the water tank, it is transmitted to the inside of the heat pipe through heat conduction, and then the flow of liquid is realized through the water pump, so that the liquid inside the heat pipe can be heated and flow into the inside of the shell for storage.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can preserve heat energy when there is hot water inside the water heater through the antifreeze mechanism, so that when the inside of the water heater is too cold, the inside of the water heater is heated by the preserved heat energy, thereby playing an antifreeze role. When the antifreeze mechanism has no heat energy, it is heated by electric energy, thus realizing heating in multiple ways, saving electric energy, and playing an environmental protection role.

[0017] 2. The present invention can automatically clean the antifreeze structure of the water heater by setting up an internal cleaning mechanism, thereby avoiding excessive impurities in the antifreeze structure after long-term use, which affects the heating effect and service life. Therefore, the heating effect of the water heater cleaning mechanism can be maintained and the service life of the antifreeze structure can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the structure of the heat pipe in the present invention; Figure 3 It is a schematic diagram of the structure of the housing in the present invention; Figure 4 It is a schematic diagram of the structure of the electric heating wire in the present invention; Figure 5 It is a structural schematic diagram of spring 1 in the present invention; Figure 6 It is a structural schematic diagram of the impeller in the present invention; Figure 7 It is a schematic diagram of the structure of the bending groove in the present invention; Figure 8 It is a schematic diagram of the structure of the protective thread shell in the present invention; Fig. 9 It is a structural schematic diagram of the clamping column in the present invention; Fig.10 It is a schematic diagram of the structure of spring 2 in the present invention.

[0019] In the figure: 1, shell; 2, closed combustion chamber; 3, water tank; 4, double electromagnetic control proportional valve; 5, fan; 6, gas inlet; 7, cold water inlet pipe; 8, antifreeze mechanism; 801, shell; 802, water pump; 803, water pump pipe; 804, water outlet pipe; 805, heat pipe; 806, cavity; 807, heating wire; 808, power plug; 9, internal cleaning mechanism; 901, mounting shell; 902, impeller; 903, rotating shaft; 904, mounting plate; 905, mounting groove; 906, spring 1; 9 07. Limit plate; 908. Connecting plate; 909. Cleaning scraper; 910. Slag discharge pipe; 911. Sealing cover; 10. Connecting mechanism; 1001. Mounting pipe; 1002. Mounting ring; 1003. Fixed column; 1004. Limiting ring; 1005. Movable shell; 1006. Spring 2; 1007. Bending groove; 1008. External pipeline; 1009. Clamping column; 1010. Protective threaded shell; 11. Exhaust hole; 12. Gas interface; 13. Hot water outlet interface; 14. Display; 15. Hot water pipe. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] like Figure 1-Figure 10The antifreeze protection structure of a water heater shown in the figure includes a shell 1, a closed combustion chamber 2 is fixedly connected to the inside of the shell 1, the closed combustion chamber 2 realizes heating, a water tank 3 is fixedly connected to the top of the closed combustion chamber 2, the water tank 3 can store water, a double electromagnetic control proportional valve 4 is fixedly connected to one side of the inside of the shell 1, the double electromagnetic control proportional valve 4 can control the gas flow and ensure constant water temperature, a fan 5 is fixedly connected to the bottom of the closed combustion chamber 2, the fan 5 can increase oxygen, so that the gas inside the closed combustion chamber 2 burns more fully, a gas inlet 6 is fixedly connected to the bottom of the closed combustion chamber 2 on one side of the fan 5, the gas inlet 6 facilitates the entry of gas, and a cold water inlet pipe is fixedly connected to one side of the water tank 3 7. The cold water inlet pipe 7 can enter cold water. The outside of the shell 1 is fixedly connected with an antifreeze mechanism 8, and the antifreeze mechanism 8 can perform antifreeze. The top of the antifreeze mechanism 8 is provided with an internal cleaning mechanism 9, and the internal cleaning mechanism 9 can clean the antifreeze mechanism 8. The outside of the antifreeze mechanism 8 is provided with a connecting mechanism 10, and the connecting mechanism 10 is convenient for connecting with an external water pipe. The top of the water tank 3 is fixedly connected with an exhaust hole 11, the bottom of the gas inlet 6 is fixedly connected with a gas interface 12, the outside of the gas interface 12 is fixedly connected to the bottom of the shell 1, the bottom of the shell 1 is fixedly connected with a hot water outlet interface 13, the outside of the water tank 3 is fixedly connected with a hot water pipe 15, and the bottom of the hot water pipe 15 is fixedly connected to the top of the hot water outlet interface 13.

[0023] The antifreeze mechanism 8 includes a shell 801, the outside of the shell 801 is fixedly connected to the outside of the shell 1, the outside of the shell 801 is fixedly connected to a water pump 802, the shell 801 is used to store water and has a heat preservation effect, the water pump 802 can provide power for the flow of liquid, the input end of the water pump 802 is fixedly connected to a water pumping pipe 803, the water pumping pipe 803 plays a connecting role, the bottom end of the water pumping pipe 803 is fixedly connected to the bottom of the shell 801, the output end of the water pump 802 is fixedly connected to a water outlet pipe 804, the water outlet pipe 804 plays a connecting role, and the water outlet pipe 804 is away from One end of the water pump 802 is fixedly connected to the outside of the internal cleaning mechanism 9, and a heat pipe 805 is provided on the outside of the water tank 3. The heat pipe 805 uses heat conduction to heat the liquid inside the shell 801 and to prevent the water heater from freezing. One end of the heat pipe 805 is fixedly connected to the bottom of the shell 801, and the other end of the heat pipe 805 is fixedly connected to the outside of the internal cleaning mechanism 9. A cavity 806 is provided inside the shell 801, and the cavity 806 can store water. A heating wire 807 is fixedly connected to the inside of the cavity 806, and an electric plug 8 is fixedly connected to the bottom of the shell 801. 08, the power plug 808 is connected to the external circuit, and the two ends of the heating wire 807 are respectively fixedly connected to the positive and negative poles of the power plug 808. When the liquid inside the shell 801 is too cold, the heating wire 807 is energized through the power plug 808. When the heating wire 807 is energized, it can heat the liquid inside the shell 801. At this time, the water pump 802 is started, and the input end of the water pump 802 draws out the hot liquid inside the shell 801 through the pumping pipe 803, and draws the liquid into the inside of the water outlet pipe 804 through the output end of the water pump 802, and draws the liquid into the water outlet pipe 804 through the water outlet pipe 804. In the internal cleaning mechanism 9, the liquid is passed into the heat pipe 805 through the internal cleaning mechanism 9, and the heat of the heat pipe 805 is used to heat the water tank 3, so as to achieve an anti-freeze effect. If the water tank 3 has temperature, the temperature can be transmitted to the inside of the heat pipe 805 to heat the liquid inside the heat pipe 805, and then passed into the inside of the outer shell 801, and the outer shell 801 is used to keep the hot water warm. When the temperature of the water tank 3 is too low, the hot liquid inside the outer shell 801 is pumped into the inside of the heat pipe 805, which can then achieve an anti-freeze effect while also making full use of the heat source.

[0024] The internal cleaning mechanism 9 includes a mounting shell 901, which provides a mounting position. The bottom of the mounting shell 901 is fixedly connected to the top of the outer shell 801, one end of the water outlet pipe 804 away from the water pump 802 is fixedly connected to the outside of the mounting shell 901, and the other end of the heat pipe 805 is fixedly connected to the outside of the mounting shell 901. The inside of the mounting shell 901 is rotatably connected to an impeller 902, and the impeller 902 can rotate under the action of the water flow. The bottom of the impeller 902 is fixedly connected to a rotating shaft 903, and the rotating shaft 903 transmits force. The outer sides of the rotating shaft 903 are fixedly connected with mounting plates 904, which provide mounting positions and support functions. The mounting plates 904 are provided with mounting grooves 905 inside, which provide mounting space. The mounting grooves 905 are fixedly connected with a plurality of springs 906 inside. The mounting grooves 905 are slidably connected with limit plates 907 inside, which play a role of limiting. The side of the limit plate 907 away from the spring 906 is fixedly connected with a connecting plate 908, and the connecting plate 908 is away from the limit plate 907. A cleaning scraper 909 is fixedly connected to one side, and the cleaning scraper 909 can clean the inner wall of the shell 801. A slag discharge pipe 910 is fixedly connected to the outer bottom end of the shell 801. A sealing cover 911 is threadedly connected to the side of the slag discharge pipe 910 away from the shell 801. The bottom of the cold water inlet pipe 7 passes through the bottom of the shell 1. The bottom of the rotating shaft 903 is rotatably connected to the inner bottom end of the shell 801. The outside of the shell 1 is fixedly connected with a display 14. The side of the cleaning scraper 909 away from the rotating shaft 903 contacts the inner wall of the shell 801. When liquid enters the interior of the mounting shell 901, the flow of liquid can be used to drive the impeller 902 to rotate. After the impeller 902 rotates, it can drive the rotating shaft 903 to rotate. After the rotating shaft 903 rotates, it can drive the mounting plate 904 to rotate. After the mounting plate 904 rotates, it can drive the cleaning scraper 909 to rotate through the limit plate 907 and the connecting plate 908, so that the scale inside the outer shell 801 can be cleaned, and the scale residue inside the outer shell 801 can be cleaned through the slag discharge pipe 910.

[0025] The connection mechanism 10 includes a mounting tube 1001, a side of the mounting tube 1001 close to the housing 1 is fixedly connected to a side of the housing 801 away from the housing 1, a mounting ring 1002 is fixedly connected inside the mounting tube 1001, the mounting ring 1002 provides a mounting position, a side of the mounting ring 1002 away from the housing 801 is fixedly connected to a plurality of fixing columns 1003, a side of the fixing columns 1003 away from the mounting ring 1002 is fixedly connected to a limiting ring 1004, and the limiting ring 1004 plays a role of limiting The outer part of the limiting ring 1004 is slidably connected to a movable shell 1005, and the side of the limiting ring 1004 away from the fixed column 1003 is fixedly connected to a second spring 1006, and the end of the second spring 1006 away from the limiting ring 1004 is fixedly connected to the inside of the movable shell 1005. Two curved grooves 1007 are provided inside the mounting tube 1001, and an external pipe 1008 is provided inside the mounting tube 1001. The outer part of the external pipe 1008 is fixedly connected to two clamping columns 1009, and the clamping columns 1009 are fixedly connected to the outer part of the fixing column 1003. 09 is engaged with the curved groove 1007, and the external thread of the mounting tube 1001 is connected with a protective thread shell 1010, which can prevent the external pipe 1008 from falling due to accidental contact. The protective thread shell 1010 is sleeved on the outside of the external pipe 1008. When the housing 801 is connected to the external pipe, first align the clamping column 1009 on the external pipe 1008 with the curved groove 1007 and slide it in. After sliding in, rotate it clockwise. When entering the installation tube 1001, the movable shell 1005 can be pushed to move toward the outer shell 801, thereby compressing the spring 2 1006. When the rotation is completed, the external pipe 1008 is released, and the spring 2 1006 uses its own reaction force to drive the movable shell 1005 to move to the side away from the outer shell 801, thereby pressing against the external pipe 1008, and then the clamping column 1009 and the curved groove 1007 can be engaged, so that it can be quickly connected to the external pipe.

[0026] A control method for a water heater antifreeze protection structure comprises the following steps: Step 1: When there is no hot water in the water pump 802, the power supply is connected to the electric plug 808 to heat the liquid in the shell 801, and the water pump 802 is controlled to start. The input end of the water pump 802 draws the liquid in the shell 801 through the pumping pipe 803, and passes it into the installation shell 901 through the outlet pipe 804, and then enters the heat conduction pipe 805 through the installation shell 901; Step 2: The hot liquid passes through the interior of the heat pipe 805, and the heat in the heat pipe 805 is transferred to the interior of the water tank 3 by heat conduction, thereby preventing the internal temperature of the water tank 3 from being too low; Step 3: When there is temperature inside the water tank 3, it is transmitted to the inside of the heat pipe 805 through heat conduction, and then the flow of liquid is realized through the water pump 802, so that the liquid inside the heat pipe 805 can be heated and flow into the inside of the shell 801 for storage.

[0027] Working principle: When the liquid inside the shell is too cold, the electric heating wire is energized by connecting the electric plug. When the electric heating wire is energized, it can heat the liquid inside the shell. At this time, the water pump is started, and the input end of the water pump extracts the hot liquid inside the shell through the pumping pipe, and the liquid is pumped into the inside of the outlet pipe through the output end of the water pump, and the liquid is pumped into the internal cleaning mechanism through the outlet pipe. The liquid is passed into the heat pipe through the internal cleaning mechanism, and the heat of the heat pipe is used to heat the water tank, so as to achieve the effect of antifreeze. If the water tank has temperature, the temperature can be transmitted to the inside of the heat pipe to heat the liquid inside the heat pipe, and then passed into the inside of the shell, and the shell is used to keep the hot water warm. When the temperature of the water tank is too low, the hot liquid inside the shell is pumped into the inside of the heat pipe, which can achieve the effect of antifreeze and make full use of the heat source. When liquid enters the interior of the mounting shell, the flow of liquid can be used to drive the impeller to rotate, and the rotation of the impeller can drive the rotating shaft to rotate, and the rotation of the rotating shaft can drive the mounting plate to rotate, and the rotation of the mounting plate can drive the cleaning scraper to rotate through the limit plate and the connecting plate, so that the scale inside the shell can be cleaned, and the scale residue inside the shell can be cleaned through the residue discharge pipe; When the shell is connected to the external pipe, first align the clamping column on the external pipe with the curved groove and slide it in, and then rotate it clockwise. When the external pipe enters the installation tube, it can push the movable shell to move toward the shell, thereby compressing the spring 2. When the rotation is completed, the external pipe is released, and the spring 2 uses its own reaction force to drive the movable shell to move to the side away from the shell, thereby pressing against the external pipe, and then the clamping column and the curved groove can be engaged, so it can be quickly connected to the external pipe.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A water heater antifreeze protection structure, comprising a housing (1), characterized in that: The shell (1) is fixedly connected to a closed combustion chamber (2) inside, the top of the closed combustion chamber (2) is fixedly connected to a water tank (3), one side of the inside of the shell (1) is fixedly connected to a double electromagnetic control proportional valve (4), the bottom of the closed combustion chamber (2) is fixedly connected to a fan (5), the bottom of the closed combustion chamber (2) is fixedly connected to a gas inlet (6) on one side of the fan (5), one side of the water tank (3) is fixedly connected to a cold water inlet pipe (7), the outside of the shell (1) is fixedly connected to an antifreeze mechanism (8), the top of the antifreeze mechanism (8) is provided with an internal cleaning mechanism (9), the outside of the antifreeze mechanism (8) is provided with a connecting mechanism (10), and the top of the water tank (3) is fixedly connected to an exhaust hole (11).

2. A water heater antifreeze protection structure according to claim 1, characterized in that: The antifreeze mechanism (8) comprises an outer shell (801), the outer portion of the outer shell (801) is fixedly connected to the outer portion of the housing (1), the outer portion of the outer shell (801) is fixedly connected to a water pump (802), the input end of the water pump (802) is fixedly connected to a water pumping pipe (803), the bottom end of the water pumping pipe (803) is fixedly connected to the bottom of the outer shell (801), the output end of the water pump (802) is fixedly connected to a water outlet pipe (804), and one end of the water outlet pipe (804) away from the water pump (802) is fixedly connected to the outside of the internal cleaning mechanism (9), The water tank (3) is provided with a heat-conducting pipe (805) on the outside, one end of the heat-conducting pipe (805) is fixedly connected to the bottom of the outer shell (801), and the other end of the heat-conducting pipe (805) is fixedly connected to the outside of the internal cleaning mechanism (9). The outer shell (801) is provided with a cavity (806) inside, and a heating wire (807) is fixedly connected inside the cavity (806). The bottom of the outer shell (801) is fixedly connected to an electric plug (808), and the two ends of the heating wire (807) are respectively fixedly connected to the positive and negative poles of the electric plug (808).

3. A water heater antifreeze protection structure according to claim 2, characterized in that: The internal cleaning mechanism (9) comprises a mounting shell (901), the bottom of the mounting shell (901) is fixedly connected to the top of the outer shell (801), one end of the water outlet pipe (804) away from the water pump (802) is fixedly connected to the outside of the mounting shell (901), the other end of the heat conduction pipe (805) is fixedly connected to the outside of the mounting shell (901), the inside of the mounting shell (901) is rotatably connected to an impeller (902), the bottom of the impeller (902) is fixedly connected to a rotating shaft (903), both sides of the outside of the rotating shaft (903) are fixedly connected to mounting plates (904), and the mounting plates (904) are fixedly connected to the outer shell (901). 904) is provided with an installation groove (905) inside, a plurality of springs (906) are fixedly connected inside the installation groove (905), a limiting plate (907) is slidably connected inside the installation groove (905), a connecting plate (908) is fixedly connected to a side of the limiting plate (907) away from the springs (906), a cleaning scraper (909) is fixedly connected to a side of the connecting plate (908) away from the limiting plate (907), a slag discharge pipe (910) is fixedly connected to the outer bottom end of the shell (801), and a sealing cover (911) is threadedly connected to a side of the slag discharge pipe (910) away from the shell (801).

4. The water heater antifreeze protection structure according to claim 1, characterized in that: The connection mechanism (10) comprises a mounting tube (1001), wherein a side of the mounting tube (1001) close to the shell (1) is fixedly connected to a side of the shell (801) away from the shell (1), a mounting ring (1002) is fixedly connected inside the mounting tube (1001), a side of the mounting ring (1002) away from the shell (801) is fixedly connected to a plurality of fixing columns (1003), a side of the fixing columns (1003) away from the mounting ring (1002) is fixedly connected to a limiting ring (1004), and an outer portion of the limiting ring (1004) is slidably connected to a movable shell (1001). 5), a side of the limiting ring (1004) away from the fixed column (1003) is fixedly connected to a second spring (1006), an end of the second spring (1006) away from the limiting ring (1004) is fixedly connected to the inside of the movable shell (1005), two curved grooves (1007) are provided inside the installation tube (1001), an external pipe (1008) is provided inside the installation tube (1001), and two clamping columns (1009) are fixedly connected to the outside of the external pipe (1008), and the clamping columns (1009) are engaged with the curved grooves (1007).

5. The water heater antifreeze protection structure according to claim 1, characterized in that: The bottom of the gas inlet (6) is fixedly connected to a gas interface (12), and the outside of the gas interface (12) is fixedly connected to the bottom of the housing (1).

6. The water heater antifreeze protection structure according to claim 1, characterized in that: A hot water outlet interface (13) is fixedly connected to the bottom of the housing (1), a hot water pipe (15) is fixedly connected to the outside of the water tank (3), and the bottom of the hot water pipe (15) is fixedly connected to the top of the hot water outlet interface (13).

7. The water heater antifreeze protection structure according to claim 3, characterized in that: The bottom of the cold water inlet pipe (7) passes through the bottom of the shell (1), and the bottom of the rotating shaft (903) is rotatably connected to the inner bottom end of the outer shell (801).

8. The water heater antifreeze protection structure according to claim 4, characterized in that: The external thread connection of the installation pipe (1001) is connected with a protective thread shell (1010), and the protective thread shell (1010) is sleeved on the outside of the external pipe (1008).

9. The water heater antifreeze protection structure according to claim 3, characterized in that: The exterior of the housing (1) is fixedly connected to a display (14), and a side of the cleaning scraper (909) away from the rotating shaft (903) is in contact with the inner wall of the housing (801).

10. A control method for a water heater antifreeze protection structure, according to the water heater antifreeze protection structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: When there is no hot water inside the water pump (802), the power supply is connected to the electric plug (808) to heat the liquid inside the shell (801), and the water pump (802) is controlled to start. The input end of the water pump (802) draws the liquid inside the shell (801) through the water pumping pipe (803), and passes the liquid into the installation shell (901) through the water outlet pipe (804), and then enters the interior of the heat transfer pipe (805) through the installation shell (901); Step 2: The hot liquid passes through the interior of the heat conducting pipe (805), and the heat in the heat conducting pipe (805) is transferred to the interior of the water tank (3) by heat conduction, thereby preventing the internal temperature of the water tank (3) from being too low; Step three: When the water tank (3) has a temperature, it is transmitted to the inside of the heat pipe (805) through heat conduction, and then the water pump (802) is used to realize the flow of liquid, so that the liquid inside the heat pipe (805) can be heated and flow into the inside of the shell (801) for storage.

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