Anti-corrosion protection structure for inner container of water heater

Abstract

The utility model belongs to the field of inner container corrosion prevention, and particularly relates to a water heater inner container anti-corrosion protection structure which comprises a shell, the inner wall of the shell is fixedly connected with a plurality of fixing frames, the tail ends of the fixing frames are jointly and fixedly connected with an inner container, a heating rod is arranged in the inner container, and the heating rod is fixedly connected with the inner container. The heating rod penetrates through the outer shell and extends to the outer side of the outer shell, a neck bush is slidably connected to the inner side of an opening in the left side of the outer shell, an open cover is fixedly connected to the neck bush and makes contact with the outer shell, and an anti-corrosion shell is fixedly connected to the open cover. The detachable open cover and the anti-corrosion shell in the open cover are arranged at one end of the outer shell, the anti-corrosion shell is inserted into the inner container to replace the inner container to make contact with clean water, and therefore the situation that the clean water is stored for a long time to corrode the inner container is avoided; and the scraping strips can rub the inner wall of the anti-corrosion shell, so that the inner wall of the anti-corrosion shell is prevented from scaling.

Description

Technical Field

[0001] This utility model relates to the field of inner tank corrosion protection technology, specifically to a corrosion protection structure for the inner tank of a water heater. Background Technology

[0002] With economic development, water heaters have become one of the most commonly used electrical appliances, especially electric water heaters. Currently, the inner tank of electric water heaters is mainly made of metal.

[0003] A search revealed a utility model patent with authorization announcement number CN102997425B, which discloses a water heater inner tank. The tank is a cylindrical water storage tank with hemispherical end walls, one end wall of which has an opening and a sealing cover. The electric heater, temperature sensor, inlet pipe and outlet pipe extend into the water storage tank through the sealing cover or its surrounding end wall. A gas barrier bag surrounds the water storage tank from the outside, and its opening is fixedly and sealed to the end wall of the water storage tank with the opening.

[0004] The inner tank of existing water heaters is made of metal, which makes it easy for limescale and rust to form, affecting its service life. Utility Model Content

[0005] The purpose of this utility model is to provide a corrosion-resistant protection structure for the inner tank of a water heater, which solves the problem that the inner tank of existing water heaters, being made of metal, is prone to scale and rust corrosion, thus affecting its service life.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant protection structure for a water heater inner tank, comprising an outer shell, multiple fixing brackets fixedly connected to the inner wall of the outer shell, an inner tank fixedly connected to the ends of the multiple fixing brackets, a heating rod disposed inside the inner tank, the heating rod penetrating the outer shell and extending to the outer side of the outer shell, an inner liner slidably connected to the inner side of the left opening of the outer shell, a cover fixedly connected to the inner liner, the cover contacting the outer shell, a corrosion-resistant shell fixedly connected to the cover, and the corrosion-resistant shell slidably connected to the inner side of the inner tank, the corrosion-resistant shell slidably sleeved on the outer side of the heating rod, a disassembly mechanism jointly provided between the inner liner and the outer shell, a motor fixedly mounted on the cover, the output shaft of the motor penetrating the cover and connected to the cover via a bearing, a rotating shaft fixedly connected to the end of the output shaft, a connecting piece fixedly connected to the end of the rotating shaft, a scraper fixedly connected to the connecting piece, and the scraper contacting the inner wall of the corrosion-resistant shell.

[0007] Preferably, the inner wall of the corrosion-resistant shell is provided with a sealing ring, which contacts the electric heating rod. The sealing ring increases the airtightness between the corrosion-resistant shell and the electric heating rod.

[0008] Preferably, a second sealing ring is embedded in the outer ring wall of the inner bushing, and the second sealing ring contacts the inner wall of the outer shell. The second sealing ring increases the sealing performance between the inner bushing and the outer shell.

[0009] Preferably, a protective cover is in contact with the outer side of the opening cover, and a rubber retaining bead is fixedly connected to the protective cover, the rubber retaining bead engaging with the opening cover. The protective cover provides protection for the motor.

[0010] Preferably, the bottom of the inner liner is fixedly connected to an inlet / outlet water pipe, which penetrates the outer shell and extends to the outside of the outer shell. The bottom of the corrosion-resistant shell has a through hole that communicates with the inlet / outlet water pipe. An insulation sleeve is provided between the outer shell and the inner liner. The insulation sleeve provides insulation for the inner liner.

[0011] Preferably, the disassembly mechanism includes a latch slidably connected inside the inner liner, the latch being slidably connected to the outer shell. A spring is disposed inside the inner liner, one end of which is fixedly connected to the latch, and the other end of which is fixedly connected to the inner surface of the inner liner. A push rod is slidably connected inside the outer shell, one end of which abuts against the latch, and the other end of which is fixedly connected to a button. This disassembly mechanism facilitates quick opening and disassembly of the cover.

[0012] Preferably, a protective sleeve is fixedly connected to the button, and the protective sleeve is fixedly connected to the outer wall of the housing. The protective sleeve provides protection against the button and push rod from falling off.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model has a detachable cover at one end of the outer shell, and an anti-corrosion shell inside the cover. The anti-corrosion shell is inserted into the inner liner and replaces the inner liner in contact with clean water, thereby avoiding corrosion of the inner liner by long-term storage of clean water. At the same time, a scraper driven by an electric motor is provided on the inner side of the anti-corrosion shell. The scraper can scrape the inner wall of the anti-corrosion shell, thereby preventing scale buildup on the inner wall of the anti-corrosion shell.

[0015] 2. This utility model provides an inner liner on the cover for installation and positioning, and also provides a disassembly mechanism on the cover. The locking pin is inserted into the outer shell under the action of a spring. In this way, the quick disassembly and assembly of the cover can be completed by controlling the engagement and disengagement between the locking pin and the outer shell, which facilitates the cleaning of the anti-corrosion shell later. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A schematic diagram of a partial structure;

[0018] Figure 3 This utility model Figure 1 A front sectional view;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0020] In the diagram: 1. Outer shell; 2. Fixing frame; 3. Inner liner; 4. Heating rod; 5. Opening lid; 6. Corrosion-resistant shell; 7. Sealing ring one; 8. Inner liner; 9. Disassembly mechanism; 10. Motor; 11. Shaft; 12. Connecting piece; 13. Scraper; 14. Protective cover; 15. Rubber retaining ball; 16. Inlet and outlet water pipes; 17. Through hole; 18. Insulation sleeve; 19. Sealing ring two; 91. Locking pin; 92. Spring; 93. Push rod; 94. Button; 95. Protective sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-3 A corrosion-resistant protective structure for the inner tank of a water heater includes an outer shell 1. Multiple fixing brackets 2 are fixedly connected to the inner wall of the outer shell 1. The ends of the multiple fixing brackets 2 are jointly fixedly connected to the inner tank 3. A heating rod 4 is installed inside the inner tank 3. The heating rod 4 penetrates the outer shell 1 and extends to the outer side of the outer shell 1. An inner liner 8 is slidably connected to the inner side of the left opening of the outer shell 1. A cover 5 is fixedly connected to the inner liner 8 and contacts the outer shell 1. A corrosion-resistant shell 6 is fixedly connected to the cover 5 and slidably connected to the inner side of the inner tank 3. The corrosion-resistant shell 6 is slidably sleeved on the outer side of the heating rod 4. A sealing ring 7 is provided on the inner wall of the corrosion-resistant shell 6 and contacts the electric heating rod 4. By setting the sealing ring 7, the sealing between the anti-corrosion shell 6 and the electric heating rod 4 can be increased. The motor 10 is fixedly installed on the cover 5. The output shaft of the motor 10 passes through the cover 5 and is connected to the cover 5 through a bearing. The end of the output shaft is fixedly connected to the rotating shaft 11. The end of the rotating shaft 11 is fixedly connected to the connecting piece 12. The scraper 13 is fixedly connected to the connecting piece 12 and contacts the inner wall of the anti-corrosion shell 6.

[0023] Please see Figure 1 , Figure 3 , Figure 4A sealing ring 19 is embedded in the outer wall of the inner liner 8, and the sealing ring 19 contacts the inner wall of the outer shell 1. The sealing ring 19 increases the sealing between the inner liner 8 and the outer shell 1. A protective cover 14 is in contact with the outer side of the cover 5, and a rubber ball 15 is fixedly connected to the protective cover 14, which engages with the cover 5. The protective cover 14 provides protection for the motor 10. A water inlet / outlet pipe 16 is fixedly connected to the bottom of the inner liner 3, and the water inlet / outlet pipe 16 passes through the outer shell 1 and extends to the outer side of the outer shell 1. A through hole 17 is opened at the bottom of the anti-corrosion shell 6, and the through hole 17 communicates with the water inlet / outlet pipe 16. An insulation sleeve 18 is provided between the outer shell 1 and the inner liner 3. The insulation sleeve 18 provides insulation for the inner liner 3.

[0024] Please see Figure 4 A disassembly mechanism 9 is provided between the inner sleeve 8 and the outer shell 1. This mechanism facilitates quick disassembly and assembly of the cover 5. The disassembly mechanism 9 includes a latch 91 slidably connected inside the inner sleeve 8 and to the outer shell 1. A spring 92 is installed inside the inner sleeve 8; one end of the spring 92 is fixedly connected to the latch 91, and the other end is fixedly connected to the inner surface of the inner sleeve 8. A push rod 93 is slidably connected inside the outer shell 1; one end of the push rod 93 abuts against the latch 91, and the other end is fixedly connected to a button 94. A protective sleeve 95 is fixedly connected to the button 94 and to the outer wall of the outer shell 1. The protective sleeve 95 provides protection against the button 94 and the push rod 93 from falling off.

[0025] The specific implementation process of this utility model is as follows: In use, firstly, the cover 5 is fastened into the outer shell 1 through the inner sleeve 8. At this time, the anti-corrosion shell 6 on the cover 5 is inserted into the inner liner 3. Moreover, the locking pin 91 will be locked into the outer shell 1 under the action of the spring 92 and abut against the push rod 93. This completes the installation of the anti-corrosion shell 6. The anti-corrosion shell 6 can replace the inner liner 3 in contact with clean water, thereby avoiding the corrosion of the inner liner 3 by the long-term storage of clean water. Moreover, the motor 10 drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives the scraper 13 to rotate through the connecting piece 12. The scraper 13 scrapes the inner wall of the anti-corrosion shell 6, thereby preventing scale buildup on the inner wall of the anti-corrosion shell 6. If the anti-corrosion shell 6 needs to be disassembled later, simply push the push rod 93 through the button 94. The push rod 93 pushes the locking pin 91 out of the outer shell 1. The operation is simple and convenient.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant protective structure for the inner tank of a water heater, comprising an outer shell (1), characterized in that: Multiple fixing brackets (2) are fixedly connected to the inner wall of the outer shell (1). The ends of the multiple fixing brackets (2) are fixedly connected to an inner liner (3). A heating rod (4) is provided inside the inner liner (3). The heating rod (4) penetrates the outer shell (1) and extends to the outside of the outer shell (1). An inner liner (8) is slidably connected to the inner side of the left opening of the outer shell (1). A cover (5) is fixedly connected to the inner liner (8). The cover (5) is in contact with the outer shell (1). An anti-corrosion shell (6) is fixedly connected to the cover (5), and the anti-corrosion shell (6) is slidably connected to the inner liner (3). Inside the shell, the corrosion-resistant shell (6) is slidably sleeved on the outside of the heating rod (4). The inner liner (8) and the outer shell (1) are provided with a disassembly mechanism (9). The opening cover (5) is fixedly mounted with a motor (10). The output shaft of the motor (10) passes through the opening cover (5) and is connected to the opening cover (5) through a bearing. The end of the output shaft is fixedly connected with a rotating shaft (11). The end of the rotating shaft (11) is fixedly connected with a connecting piece (12). The connecting piece (12) is fixedly connected with a scraper (13), and the scraper (13) is in contact with the inner wall of the corrosion-resistant shell (6).

2. The anti-corrosion protection structure for the inner tank of a water heater according to claim 1, characterized in that: The inner wall of the corrosion-resistant shell (6) is provided with a sealing ring (7), which is in contact with the electric heating rod (4).

3. The anti-corrosion protection structure for the inner tank of a water heater according to claim 1, characterized in that: The outer ring wall of the inner bushing (8) is embedded with a sealing ring two (19), and the sealing ring two (19) is in contact with the inner wall of the outer shell (1).

4. The anti-corrosion protection structure for the inner tank of a water heater according to claim 1, characterized in that: The outer side of the opening cover (5) is in contact with a protective cover (14), and a rubber bead (15) is fixedly connected to the protective cover (14), and the rubber bead (15) is engaged with the opening cover (5).

5. The anti-corrosion protection structure for the inner tank of a water heater according to claim 1, characterized in that: The bottom of the inner liner (3) is fixedly connected to an inlet / outlet water pipe (16), which penetrates the outer shell (1) and extends to the outside of the outer shell (1). The bottom of the anti-corrosion shell (6) is provided with a through hole (17), which communicates with the inlet / outlet water pipe (16). An insulation sleeve (18) is provided between the outer shell (1) and the inner liner (3).

6. The anti-corrosion protection structure for the inner tank of a water heater according to claim 1, characterized in that: The disassembly mechanism (9) includes a latch (91) slidably connected inside the inner sleeve (8), the latch (91) being slidably connected to the outer shell (1), a spring (92) being provided inside the inner sleeve (8), one end of the spring (92) being fixedly connected to the latch (91), and the other end of the spring (92) being fixedly connected to the inner surface of the inner sleeve (8), and a push rod (93) being slidably connected inside the outer shell (1), one end of the push rod (93) abutting against the latch (91), and the other end of the push rod (93) being fixedly connected to a button (94).

7. The anti-corrosion protection structure for the inner tank of a water heater according to claim 6, characterized in that: A protective sleeve (95) is fixedly connected to the button (94), and the protective sleeve (95) is fixedly connected to the outer wall of the outer shell (1).

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