High-safety water heater

Abstract

The utility model relates to a high-safety water heater which comprises a shell, an inner container, a water inlet pipe, a water outlet pipe, a magnesium rod and a heating assembly, the shell is arranged outside the inner container in a covering mode, and the inner container is used for storing water; one end of the water inlet pipe penetrates into the inner container, the other end of the water inlet pipe penetrates out of the shell, one end of the water outlet pipe penetrates into the inner container, the other end of the water outlet pipe penetrates out of the shell, the end, penetrating into the inner container, of the water inlet pipe extends to be close to the bottom of the inner container, and the end, penetrating into the inner container, of the water outlet pipe extends to be close to the top of the inner container. The magnesium rod is arranged on the inner top wall of the inner container; the heating assembly is arranged at the bottom of the inner container, a heating notch is formed in the bottom face of the inner container, the heating assembly is located at the heating notch, the heating assembly comprises a base plate and a heating pipe, the base plate is in a disc shape, the base plate is fixedly connected with the inner container through a connecting piece, the heating pipe is annular and connected to the side, away from the inner container, of the base plate, and the heating pipe is an aluminum piece. The chassis is made of stainless steel. The service life of the heater is prolonged, and the water quality can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a high-safety water heater. Background Art

[0002] A water heater is a device that uses various physical principles to increase the temperature of cold water into hot water within a certain period of time. According to different principles, it can be divided into electric water heaters, gas water heaters, solar water heaters, magnetic water heaters, air water heaters, heating water heaters, etc.

[0003] The electric water heater is mainly composed of several parts: shell, inner tank, water inlet pipe, water outlet pipe, heating tube, thermostat, flange, bolts, nuts, etc. The inner tank is installed in the shell, and is used to store water. The water to be heated flows into the inner tank through the water inlet pipe, and the heated water in the inner tank flows to the outside through the water outlet pipe for use; the heating tube is located inside the inner tank and is used to heat the water in the inner tank. The thermostat is set at the bottom of the heating tube and controls the heating temperature; the flange is used to fix the heating tube and assemble it with the inner tank, and the bolts and nuts are used together to fix the flange.

[0004] In view of the above-mentioned related technologies, the inventors believe that long-term heating of the heating tube in water will produce scale, which will corrode or even pierce the heating tube, causing damage to the heating tube, thereby reducing the service life of the water heater. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides a high-safety water heater.

[0006] The high-safety water heater provided in this application adopts the following technical solution:

[0007] A high-safety water heater, comprising an outer shell, an inner tank, a water inlet pipe, a water outlet pipe, a magnesium rod, and a heating component, wherein the outer shell is covered outside the inner tank, and the inner tank is used for storing water;

[0008] One end of the water inlet pipe penetrates into the inner tank, and the other end of the water inlet pipe penetrates out of the outer shell, one end of the water outlet pipe penetrates into the inner tank, and the other end of the water outlet pipe penetrates out of the outer shell, the end of the water inlet pipe penetrates into the inner tank extends to near the bottom of the inner tank, and the end of the water outlet pipe penetrates into the inner tank extends to near the top of the inner tank; the magnesium rod is arranged on the inner top wall of the inner tank;

[0009] The heating component is arranged at the bottom of the inner pot, and a heating slot is provided on the bottom surface of the inner pot. The heating component is located at the heating slot. The heating component includes a chassis and a heating tube. The chassis is disc-shaped and is connected and fixed to the inner pot through a connecting piece. The heating tube is annular and connected to a side of the chassis away from the inner pot. The heating tube is made of aluminum and the chassis is made of stainless steel.

[0010] By adopting the above technical solution, the aluminum heating tube heats the water in the inner tank through the stainless steel chassis. The stainless steel chassis is in contact with the water, while the aluminum heating tube is not in contact with the water. The stainless steel chassis is not easily corroded, thereby protecting the heating tube. During the use of the water heater, the heating tube is not easily corroded or even punctured by scale, which prolongs the service life of the heating tube, thereby prolonging the service life of the water heater. The aluminum heating tube is not in contact with water, and the stainless steel chassis prevents aluminum ions from polluting the water quality, thereby ensuring the water quality of the water heater. Compared with directly using stainless steel heating tubes, aluminum heating tubes reduce costs, and the stainless steel chassis is set to be thinner. According to actual production comparisons, the total cost of the aluminum heating tube and the stainless steel chassis is less than the cost of the stainless steel heating tube.

[0011] Preferably, the connecting member is a connecting ring, the connecting ring comprises at least two unit ring plates, each of the unit ring plates comprises an integrally formed supporting portion, a connecting portion, and a sealing portion, the supporting portion is vertically arranged, one end of the supporting portion is welded to the outer wall of the inner container, the connecting portion is horizontally arranged, and the connecting portion is fixedly connected to one end of the supporting portion away from the inner container;

[0012] The wall body at the heating notch of the inner pot is bent toward the direction close to the connecting ring to form a sealing ring edge, and an annular groove is formed between the sealing ring edge and the outer bottom wall of the inner pot. The sealing part is in a 7-shape, and the vertical section of the sealing part is fixedly connected to the connecting part. The horizontal section of the sealing part is clamped in the annular groove. A connecting bolt is passed through the connecting part, and the nut of the connecting bolt abuts against a side of the connecting part away from the chassis. After the screw rod of the connecting bolt passes through the chassis, it is threadedly connected with a connecting nut, and the connecting nut abuts against a side of the chassis away from the connecting part.

[0013] Preferably, a sealing ring is provided between the chassis and the connecting ring in an interference fit, one side of the sealing ring abuts against the connecting portion and the sealing portion of the connecting ring at the same time, and the other side of the sealing ring is connected to the chassis.

[0014] By adopting the above technical solution, the sealing part and the sealing ring of the connecting ring both improve the sealing performance between the bottom plate and the inner tank;

[0015] When installing the heating component, after passing the connecting bolts through the connecting part, weld the unit ring plate and the inner tank, then abut the sealing ring with the connecting ring, and abut the chassis of the heating component with the sealing ring, pass the connecting bolts through the sealing ring and the chassis in turn, and finally tighten the connecting nut and the connecting bolt until they abut against the chassis to fix the heating component, which is convenient for installation and replacement of the heating component.

[0016] Preferably, a heat-insulating layer is provided between the outer peripheral wall of the inner liner and the inner peripheral wall of the outer shell, and the heat-insulating layer is fixedly connected to the outer peripheral wall of the inner liner.

[0017] By adopting the above technical solution, the thermal insulation layer keeps the water in the inner tank warm.

[0018] Preferably, the shell includes a shell body and an upper cover, the shell body includes a fixedly connected bottom plate and an annular peripheral side plate, a circle of fixed ring edge is fixedly connected to the outer peripheral wall of the top of the peripheral side plate, the upper cover is connected and fixed to the fixed ring edge by a fixing bolt, the screw of the fixing bolt passes through the fixed ring edge and the upper cover and is threadedly connected with a fixing nut, the nut of the fixing bolt abuts against the fixed ring edge, the fixing nut abuts against the upper cover, and the upper cover is provided with a clearance hole for the water inlet pipe and the water outlet pipe to pass through;

[0019] The bottom surface of the inner pot is fixedly connected with a support rod, and four support rods are arranged at intervals along the circumference of the inner pot. The support rods enable the space between the bottom surface of the inner pot and the bottom plate to accommodate the heating component.

[0020] By adopting the above technical solution, the support rod provides space for the installation of the heating component. After the inner tank is installed in the shell body, the upper cover is placed on the fixed ring plate, so that the water inlet pipe and the water outlet pipe pass through the makeshift hole, and then the screw of the fixing bolt is passed through the fixed ring edge and the upper cover and threadedly connected to the fixing nut, and finally the nut of the fixing bolt is abutted against the fixed ring edge, and the fixing nut is abutted against the upper cover, so that the inner tank is installed in the shell.

[0021] Preferably, a mounting ring groove for installing the heating tube is protruded on the bottom plate in a direction close to the inside of the inner tank, and the heating tube is embedded and welded in the mounting ring groove.

[0022] By adopting the above technical solution, the heating pipe is embedded in the mounting ring groove, which improves the structural stability between the heating pipe and the chassis, and makes the bonding performance between the heating pipe and the chassis more excellent.

[0023] Preferably, a thermostat is provided on the chassis, the thermostat comprises a fuse part and a temperature detection part, the temperature detection part of the thermostat is connected to the chassis to detect the temperature of the chassis surface, and the fuse part of the thermostat is connected to the heating tube to detect the temperature of the heating tube surface;

[0024] Both ends of the heating tube are electrically connected to the fuse part of the temperature controller through an electrical connector.

[0025] By adopting the above technical solution, the power supply transmits current to the heating tube for heating through the thermostat. The temperature detection part of the thermostat detects the temperature of the chassis and cuts off the power when the controlled temperature is reached. When the temperature drops to the reset temperature of the thermostat, the heating tube continues to be powered on for heating. In this cycle, the chassis is in direct contact with water, so that the temperature detected by the temperature detection part is closer to the water temperature, making the temperature control accuracy more accurate.

[0026] Preferably, a grounding sheet is also provided on a side of the chassis away from the inner container.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The aluminum heating tube heats the water in the inner tank through the stainless steel chassis. The stainless steel chassis is in contact with the water, but the aluminum heating tube is not. The stainless steel chassis is not easily corroded, thus protecting the heating tube. During the use of the water heater, the heating tube is not easily corroded or even punctured by scale, thus extending the service life of the heating tube and thus extending the service life of the water heater. The aluminum heating tube is not in contact with water, and the stainless steel chassis prevents aluminum ions from polluting the water quality, thus ensuring the water quality of the water heater. Compared with directly using stainless steel heating tubes, aluminum heating tubes reduce costs, and the stainless steel chassis is set to be thinner. According to actual production comparisons, the total cost of the aluminum heating tube and the stainless steel chassis is less than the cost of the stainless steel heating tube;

[0029] 2. The power supply transmits current to the heating tube through the thermostat for heating. The temperature detection part of the thermostat detects the temperature of the chassis and cuts off the power when the controlled temperature is reached. When the temperature drops to the reset temperature of the thermostat, the heating tube continues to be powered on for heating. In this cycle, the chassis is in direct contact with the water, so that the temperature detected by the temperature detection part is closer to the water temperature, making the temperature control accuracy more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of a high-safety water heater in an embodiment of the present application.

[0031] Figure 2 In the embodiment of this application Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0032] Figure 3 It is a bottom view used to show the heating component in the embodiment of the present application.

[0033] Figure 4 It is a schematic diagram of the exploded structure of the fixing plate and the thermostat after the grounding plate and the steel wire connected to the fuse part are hidden in the embodiment of the present application.

[0034] Explanation of the accompanying drawings: 1. outer shell; 11. shell body; 111. fixing ring edge; 12. upper cover; 121. fixing bolt; 122. fixing nut; 2. liner; 21. heating notch; 22. sealing ring edge; 23. insulation layer; 3. water inlet pipe; 4. water outlet pipe; 5. magnesium rod; 6. heating assembly; 61. chassis; 611. mounting ring groove; 62. heating tube; 63. thermostat; 631. fuse part; 632. temperature detection part; 64. fixing plate; 65. electrical connector; 66. grounding plate; 7. connecting ring; 71. supporting part; 72. connecting part; 73. sealing part; 74. connecting bolt; 75. connecting nut; 8. sealing ring; 9. support rod. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-4 This application is described in further detail.

[0036] The embodiment of the present application discloses a high-safety water heater.

[0037] Reference Figure 1-4 The high-safety water heater includes an outer shell 1, an inner tank 2, a water inlet pipe 3, a water outlet pipe 4, a magnesium rod 5, and a heating component 6. The outer shell 1 is covered outside the inner tank 2, and the inner tank 2 is used for storing water.

[0038] One end of the water inlet pipe 3 penetrates into the inner tank 2, and the other end of the water inlet pipe 3 penetrates out of the outer shell 1, one end of the water outlet pipe 4 penetrates into the inner tank 2, and the other end of the water outlet pipe 4 penetrates out of the outer shell 1, the end of the water inlet pipe 3 penetrates into the inner tank 2 and extends to near the bottom of the inner tank 2, and the end of the water outlet pipe 4 penetrates into the inner tank 2 and extends to near the top of the inner tank 2; the magnesium rod 5 is installed on the inner top wall of the inner tank 2.

[0039] The heating component 6 is arranged at the bottom of the inner pot 2. A heating slot 21 is provided on the bottom surface of the inner pot 2. The heating component 6 is located at the heating slot 21. The heating component 6 includes a chassis 61 and a heating tube 62. The chassis 61 is disc-shaped. The chassis 61 is connected and fixed to the inner pot 2 through a connecting piece. The heating tube 62 is annular and connected to the side of the chassis 61 away from the inner pot 2. The heating tube 62 is made of aluminum and the chassis 61 is made of stainless steel.

[0040] The aluminum heating tube 62 heats the water in the inner tank 2 through the stainless steel chassis 61. The stainless steel chassis 61 is in contact with the water, while the aluminum heating tube 62 is not in contact with the water. The stainless steel chassis 61 is not easily corroded, thereby protecting the heating tube 62. During the use of the water heater, the heating tube 62 is not easily corroded or even punctured by scale, thereby extending the service life of the heating tube 62, thereby extending the service life of the water heater. The aluminum heating tube 62 is not in contact with the water, and the stainless steel chassis 61 prevents aluminum ions from polluting the water quality, thereby ensuring the water quality of the water heater. Compared with directly using the stainless steel heating tube 62, the aluminum heating tube 62 reduces the cost, and the stainless steel chassis 61 is set to be thinner. According to the comparison in actual production, the total cost of the aluminum heating tube 62 and the stainless steel chassis 61 is less than the cost of the stainless steel heating tube 62.

[0041] The connecting member is a connecting ring 7, which includes four unit ring plates. Every two adjacent unit ring plates are tightly attached to each other. Each unit ring plate includes an integrally formed support portion 71, a connecting portion 72, and a sealing portion 73. The support portion 71 is vertically arranged, and one end of the support portion 71 is welded to the outer wall of the inner liner 2. The connecting portion 72 is horizontally arranged, and the connecting portion 72 is fixedly connected to the end of the support portion 71 away from the inner liner 2.

[0042] The wall body at the heating notch 21 of the inner pot 2 is bent toward the direction close to the connecting ring 7 to form a sealing ring edge 22, and an annular groove is formed between the sealing ring edge 22 and the outer bottom wall of the inner pot 2. The sealing portion 73 is in the shape of a 7, and the vertical section of the sealing portion 73 is fixedly connected to the connecting portion 72. The horizontal section of the sealing portion 73 is clamped in the annular groove. A connecting bolt 74 is passed through the connecting portion 72, and the nut of the connecting bolt 74 abuts against the side of the connecting portion 72 away from the chassis 61. After the screw rod of the connecting bolt 74 passes through the chassis 61, it is threadedly connected to a connecting nut 75, and the connecting nut 75 abuts against the side of the chassis 61 away from the connecting portion 72.

[0043] A sealing ring 8 is provided between the bottom plate 61 and the connecting ring 7 in an interference fit, one side of the sealing ring 8 abuts against the connecting portion 72 and the sealing portion 73 of the connecting ring 7, and the other side of the sealing ring 8 is connected to the bottom plate 61. The sealing portion 73 of the connecting ring 7 and the sealing ring 8 both improve the sealing performance between the bottom plate and the inner liner 2.

[0044] When installing the heating component 6, after passing the connecting bolt 74 through the connecting part 72, weld the unit ring plate to the inner tank 2, then abut the sealing ring 8 with the connecting ring 7, and abut the chassis 61 of the heating component 6 with the sealing ring 8, and pass the connecting bolt 74 through the sealing ring 8 and the chassis 61 in turn. Finally, tighten the connecting nut 75 and the connecting bolt 74 until they abut against the chassis 61 to fix the heating component 6, so as to facilitate the installation and replacement of the heating component 6.

[0045] A heat-insulating layer 23 is provided between the outer peripheral wall of the inner liner 2 and the inner peripheral wall of the outer shell 1. The heat-insulating layer 23 is fixedly connected to the outer peripheral wall of the inner liner 2 to insulate the water in the inner liner 2. The heat-insulating layer 23 is made of polyurethane material.

[0046] The shell 1 includes a shell body 11 and an upper cover 12. The shell body 11 includes a fixedly connected bottom plate and an annular peripheral side plate. A circle of fixed ring edge 111 is fixedly connected to the outer peripheral wall at the top of the peripheral side plate. The upper cover 12 is connected and fixed to the fixed ring edge 111 by a fixing bolt 121. The screw of the fixing bolt 121 passes through the fixing ring edge 111 and the upper cover 12 and is threadedly connected with a fixing nut 122. The nut of the fixing bolt 121 abuts against the fixing ring edge 111, and the fixing nut 122 abuts against the upper cover 12. The upper cover 12 is provided with a makeshift hole for the water inlet pipe 3 and the water outlet pipe 4 to pass through.

[0047] The bottom surface of the inner pot 2 is fixedly connected with support rods 9 , and four support rods 9 are arranged at intervals along the circumference of the inner pot 2 . The support rods 9 allow the space between the bottom surface of the inner pot 2 and the bottom plate to accommodate the heating assembly 6 .

[0048] The support rod 9 provides space for the installation of the heating component 6. After the inner tank 2 is installed in the shell body 11, the upper cover 12 is placed on the fixed ring plate so that the water inlet pipe 3 and the water outlet pipe 4 pass through the make way holes, and then the screw of the fixing bolt 121 is passed through the fixing ring edge 111 and the upper cover 12 and then threadedly connected to the fixing nut 122, and finally the nut of the fixing bolt 121 is abutted against the fixing ring edge 111, and the fixing nut 122 is abutted against the upper cover 12, so that the inner tank 2 is installed in the shell.

[0049] The bottom plate 61 has a mounting groove 611 protruding toward the direction close to the inside of the inner pot 2 for mounting the heating tube 62. The heating tube 62 is embedded and welded in the mounting groove 611, and the lower surface of the heating tube 62 is flush with the lower surface of the bottom plate 61. The heating tube 62 is embedded in the mounting groove 611, which improves the structural stability between the heating tube 62 and the bottom plate 61, and makes the combination performance between the heating tube 62 and the bottom plate 61 more excellent.

[0050] A thermostat 63 is provided on the chassis 61, and the thermostat 63 includes a fuse part 631 and a temperature detection part 632. The temperature detection part 632 of the thermostat 63 is connected to the chassis 61 to detect the temperature of the surface of the chassis 61, and the fuse part 631 of the thermostat 63 is connected to the heating tube 62 to detect the temperature of the surface of the heating tube 62.

[0051] A fixing plate 64 is provided below the thermostat 63 and between the chassis 61 and the heating tube 62. The lower surface of the fixing plate 64 spans over the mounting ring groove 611 of the chassis 61, so that a portion of the lower surface of the fixing plate 64 is abutted against the heating tube 62, and another portion of the lower surface of the fixing plate 64 is abutted against the chassis 61. The upper surface of one end of the fixing plate 64 abutting against the heating tube 62 is abutted against the fuse 631 of the thermostat 63, and the upper surface of one end of the fixing plate 64 abutting against the chassis 61 is abutted against the temperature detection portion 632 of the thermostat 63. The upper surface of the fixing plate 64 fixes the thermostat 63 by bolts and nuts, and the lower surface of the fixing plate 64 is fixedly connected to the chassis 61 and the heating tube 62 by aluminum welding.

[0052] Both ends of the heating tube 62 are electrically connected to the fuse part 631 of the thermostat 63 through the electrical connector 65. The ends of the heating tube 62 are arranged in a direction away from the chassis 61. The electrical connector 65 includes but is not limited to a wire and a steel wire. In this embodiment, the electrical connector 65 is a steel wire, and the other end of each steel wire is respectively connected to the two ends of the fuse part 631 of the thermostat 63 by welding, so that the heating tube 62 and the thermostat 63 are connected.

[0053] A grounding plate 66 is also provided on a side of the bottom plate 61 away from the inner container 2 .

[0054] The power supply transmits current to the heating tube 62 through the thermostat 63 for heating. The temperature detection part 632 of the thermostat 63 detects the temperature of the chassis 61 and cuts off the power when the controlled temperature is reached. When the temperature drops to the reset temperature of the thermostat 63, the heating tube 62 continues to be powered on for heating. In this cycle, the chassis 61 is in direct contact with the water, so that the temperature detected by the temperature detection part 632 is closer to the water temperature, making the temperature control accuracy more accurate.

[0055] The implementation principle of a high-safety water heater in the embodiment of the present application is:

[0056] Power is turned on and the current is transmitted to the heating tube 62 through the thermostat for heating. The temperature detection part 632 of the thermostat 63 detects the temperature of the chassis 61 and cuts off the power when the controlled temperature is reached. When the temperature drops to the reset temperature of the thermostat 63, the heating tube 62 continues to be powered on for heating. In this cycle, the chassis 61 is in direct contact with the water, so that the temperature detected by the temperature detection part 632 is closer to the water temperature, making the temperature control accuracy more accurate.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-safety water heater, characterized in that: It comprises an outer shell (1), an inner shell (2), a water inlet pipe (3), a water outlet pipe (4), a magnesium rod (5), and a heating component (6); the outer shell (1) is arranged outside the inner shell (2); and the inner shell (2) is used for storing water; One end of the water inlet pipe (3) penetrates into the inner tank (2), and the other end of the water inlet pipe (3) penetrates out of the outer shell (1); one end of the water outlet pipe (4) penetrates into the inner tank (2), and the other end of the water outlet pipe (4) penetrates out of the outer shell (1); the end of the water inlet pipe (3) penetrates into the inner tank (2) and extends to near the bottom of the inner tank (2), and the end of the water outlet pipe (4) penetrates into the inner tank (2) and extends to near the top of the inner tank (2); the magnesium rod (5) is arranged on the inner top wall of the inner tank (2); The heating component (6) is arranged at the bottom of the inner pot (2); a heating notch (21) is provided on the bottom surface of the inner pot (2); the heating component (6) is located at the heating notch (21); the heating component (6) comprises a base plate (61) and a heating tube (62); the base plate (61) is disc-shaped; the base plate (61) is connected and fixed to the inner pot (2) via a connecting piece; the heating tube (62) is annular and connected to a side of the base plate (61) away from the inner pot (2); the heating tube (62) is made of aluminum, and the base plate (61) is made of stainless steel.

2. The high-safety water heater according to claim 1, characterized in that: The connecting member is a connecting ring (7), the connecting ring (7) comprising at least two unit ring plates, each of the unit ring plates comprising an integrally formed support portion (71), a connecting portion (72), and a sealing portion (73), the supporting portion (71) being arranged vertically, one end of the supporting portion (71) being welded to the outer wall of the inner container (2), the connecting portion (72) being arranged horizontally, and the connecting portion (72) being fixedly connected to one end of the supporting portion (71) away from the inner container (2); The wall body at the heating notch (21) of the inner pot (2) is bent toward the direction close to the connecting ring (7) to form a sealing ring edge (22), and an annular groove is formed between the sealing ring edge (22) and the outer bottom wall of the inner pot (2); the sealing portion (73) is in a 7-shape, and the vertical section of the sealing portion (73) is fixedly connected to the connecting portion (72); the horizontal section of the sealing portion (73) is clamped in the annular groove; a connecting bolt (74) is passed through the connecting portion (72); the nut of the connecting bolt (74) abuts against a side of the connecting portion (72) away from the bottom plate (61); the screw rod of the connecting bolt (74) passes through the bottom plate (61) and is threadedly connected to a connecting nut (75); the connecting nut (75) abuts against a side of the bottom plate (61) away from the connecting portion (72).

3. The high-safety water heater according to claim 2, characterized in that: A sealing ring (8) is provided between the chassis (61) and the connecting ring (7) in an interference fit, one side of the sealing ring (8) is in contact with the connecting portion (72) and the sealing portion (73) of the connecting ring (7), and the other side of the sealing ring (8) is connected to the chassis (61).

4. The high-safety water heater according to claim 1, characterized in that: A heat-insulating layer (23) is provided between the outer peripheral wall of the inner liner (2) and the inner peripheral wall of the outer shell (1), and the heat-insulating layer (23) is fixedly connected to the outer peripheral wall of the inner liner (2).

5. The high-safety water heater according to claim 1, characterized in that: The shell (1) comprises a shell body (11) and an upper cover (12), the shell body (11) comprises a fixedly connected bottom plate and an annular peripheral side plate, a circle of fixed ring edge (111) is fixedly connected to the outer peripheral wall of the top of the peripheral side plate, the upper cover (12) is connected and fixed to the fixed ring edge (111) by a fixing bolt (121), the screw of the fixing bolt (121) passes through the fixing ring edge (111) and the upper cover (12) and is threadedly connected with a fixing nut (122), the nut of the fixing bolt (121) abuts against the fixing ring edge (111), the fixing nut (122) abuts against the upper cover (12), and the upper cover (12) is provided with a clearance hole for the water inlet pipe (3) and the water outlet pipe (4) to pass through; The bottom surface of the inner pot (2) is fixedly connected to a support rod (9), and four support rods (9) are arranged at intervals along the circumference of the inner pot (2). The support rods (9) enable the space between the bottom surface of the inner pot (2) and the bottom plate to accommodate the heating component (6).

6. The high-safety water heater according to claim 1, characterized in that: The bottom plate (61) is provided with a mounting ring groove (611) protruding in a direction close to the interior of the inner container (2) for mounting the heating tube (62), and the heating tube (62) is embedded and welded in the mounting ring groove (611).

7. The high-safety water heater according to claim 1, characterized in that: A thermostat (63) is provided on the chassis (61), and the thermostat (63) comprises a fuse part (631) and a temperature detection part (632); the temperature detection part (632) of the thermostat (63) is connected to the chassis (61) to detect the temperature of the surface of the chassis (61); and the fuse part (631) of the thermostat (63) is connected to the heating tube (62) to detect the temperature of the surface of the heating tube (62); Both ends of the heating tube (62) are electrically connected to the fuse part (631) of the temperature controller (63) via an electrical connector (65).

8. The high-safety water heater according to claim 1, characterized in that: A grounding sheet (66) is also provided on a side of the bottom plate (61) away from the inner container (2).

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