Resistance sacrificial anode structure with partial integration design

Abstract

The utility model belongs to the technical field of material corrosion cathode protection, and particularly discloses a resistor sacrificial anode structure with partial integration design, which comprises a sacrificial anode substrate and a first rod core, the first rod core is embedded at one end of the sacrificial anode substrate, and a mounting screw head, a second rod core and a resistor are sequentially arranged above the end from top to bottom; wherein the first rod core is electrically connected with the second rod core through a resistor, the mounting screw head and the second rod core are integrated into a whole, and the mounting screw head and the second rod core which are integrated into a whole are in insulated connection with an injection molding part formed by injection molding of the sacrificial anode base body. And meanwhile, an anti-rotation structure is arranged between the injection molding part and the sacrificial anode base body. The sacrificial anode structure disclosed by the utility model not only improves the reliability of connection, but also can greatly reduce the use number of parts and the structural complexity, and cancels the assembly process, thereby optimizing the production mode, reducing the quality risk and the production cost, and improving the enterprise competitiveness.

Description

Technical Field

[0001] The utility model belongs to the technical field of material corrosion cathode protection, and in particular relates to a resistance sacrificial anode structure with a partially integrated design, which is mainly used for a water storage water heater. Background Art

[0002] Storage water heaters are an indispensable household appliance for people's daily bathing. The core component is the water tank for storing water. The material of the water tank is generally steel. Although the inner surface is coated with enamel or other coatings, it is easy to corrode and perforate due to long-term immersion in water, which can cause water leakage and electric leakage accidents, resulting in the scrapping of the water tank and water heater.

[0003] In order to avoid the above situation, the prior art often uses the principle of cathodic protection to protect the water tank of the water storage water heater from corrosion. The method is to connect a magnesium anode to the water tank as a sacrificial anode structure, that is, to use the negative charge of magnesium in the medium to protect the steel matrix, especially the enamel tank and stainless steel tank of the water storage electric water heater, so as to prevent corrosion. The sacrificial anodes currently used are all made of materials that are more active than the water tank material, and are directly installed on the water tank through nuts. In this way, a primary battery system can be formed between the sacrificial anode, the water tank and the water in the water tank, and the self-sacrifice of the sacrificial anode can be used to ensure that the water tank does not corrode. Since the sacrificial anode works by self-consumption, the life of each sacrificial anode is limited and should be replaced regularly. However, when using the water heater, users rarely have the behavior and habit of actively replacing the sacrificial anode, which makes the water tank of the water heater have certain risks of use.

[0004] In response to the above problems, some water heater manufacturers have designed some designs that can slow down the consumption of sacrificial anodes and extend their service life, such as adding a resistor between the sacrificial anode and the inner tank, thereby reducing the protection current generated in the inner tank to a certain extent. The smaller the protection current, the slower the consumption of the sacrificial anode and the longer the service life. However, the existing sacrificial anode structure with added resistors is relatively complex and has many production processes. First, the sacrificial anode part with a rod core of a conventional structure must be produced; secondly, the resistor must be welded between the rod core and another section of the rod core on the sacrificial anode; then the resistor and the two sections of the rod core must be wrapped by injection molding; finally, the screw head must be assembled to the exposed rod core after injection molding. In addition to the many processes, in the final screw head assembly process, due to the relatively low strength of the injection molding material, when the screw head is directly installed on the injection molding material, problems such as injection molding section collapse, deformation, abnormal resistor connection, and loose installation often occur. Not only does it increase the production cost and the quality risk of functional abnormality, but the rod core is often not firmly connected to the installation screw head when connected to the water heater tank, resulting in the installation screw head being prone to loosening and falling off when connected to the water heater tank. At the same time, the existing similar product structure has a simple structure at the connection between the sacrificial anode section and the injection molding section, and does not take into account the circumferential rotation or even disengagement that occurs during the product assembly process, which can easily lead to problems such as low product qualification rate or high quality risk.

[0005] In view of this, the utility model particularly proposes a partially integrated brand-new design structure. Utility Model Content

[0006] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a resistor sacrificial anode structure with a partially integrated design. The utility model proposes that the second rod core and the mounting screw head adopt an integrated design concept, and the integrated components are connected as one with the injection molded components formed by injection molding of the sacrificial anode substrate. This not only simplifies the structure, reduces the number of parts used, reduces the assembly difficulty and production cost, but also improves the stability of the mounting screw head in the resistor sacrificial anode structure, ensures the reliability of the mounting screw head when connected to the inner tank of the water storage water heater, thereby improving the competitiveness of the product.

[0007] The purpose of the utility model is to solve the problem through the following technical solutions:

[0008] The utility model provides a resistance sacrificial anode structure with a partially integrated design, comprising a cylindrical sacrificial anode substrate and a first rod core arranged coaxially, wherein a portion of the first rod core is embedded in the sacrificial anode substrate and the other portion is exposed outside the sacrificial anode substrate, and the sacrificial anode substrate is located above one end of the first rod core and is provided with a mounting screw head, a second rod core and a resistor in sequence from top to bottom;

[0009] Among them, one end electrode of the resistor is electrically connected to the first rod core exposed outside the sacrificial anode substrate through a first wire, and the other end electrode is electrically connected to the second rod core through a second wire. The mounting screw head and the second rod core are integrated as one, and the mounting screw head and the second rod core integrated as one are connected to the injection molded component formed by injection molding of the sacrificial anode substrate.

[0010] Furthermore, the installation screw head and the second rod core are directly formed as one piece by cold heading; or the installation screw head and the second rod core are pre-fixed and connected as one piece by threading, stamping or welding.

[0011] Furthermore, the injection molded component is in a cylindrical structure. Preferably, the injection molded component in a cylindrical structure is coaxially arranged with the sacrificial anode substrate and has the same outer diameter.

[0012] Furthermore, the second rod core is coaxial with the first rod core, and the portion of the second rod core located in the injection molded component is a stepped structure, which is used to increase the stability of the connection and prevent the formation of a gap between the rod core and the injection molded material, causing water to penetrate into the resistor part and cause functional abnormalities.

[0013] Furthermore, an anti-rotation structure is provided between the injection-molded component and the sacrificial anode substrate.

[0014] Furthermore, the anti-rotation structure includes a snap-fit ​​groove and / or a snap-fit ​​protrusion axially arranged at the end of the sacrificial anode substrate, and a snap-fit ​​protrusion and / or a snap-fit ​​groove axially arranged at the end of the injection-molded component and matching with the snap-fit ​​groove and / or the snap-fit ​​protrusion, and the matching snap-fit ​​protrusion and snap-fit ​​groove serve as resistance to each other, so as to prevent the sacrificial anode substrate from circumferentially rotating relative to the injection-molded component.

[0015] Furthermore, an external thread section that is threadedly connected to the internal thread of the inner tank of the water storage water heater is provided on the side of the mounting screw head close to the second rod core, and a first connecting portion that is connected to the second rod core as a whole is provided at the center position of the mounting screw head, and a first disassembly and assembly section that cooperates with a wrench tool is provided on the side of the mounting screw head away from the second rod core.

[0016] When the installation screw head is an external thread screw head, there are at least the following two structures, one is a smooth transition between the external thread section and the first disassembly section, and the other is a transition between the external thread section and the first disassembly section through an intermediate connecting section;

[0017] The first disassembly and assembly section is an external hexagonal structure, the middle connecting section is a disc structure, and the outer diameter of the middle connecting section is respectively larger than the maximum outer diameter of the external thread section and the outer diameter of the circumscribed circle of the first disassembly and assembly section.

[0018] Furthermore, an internal thread section screwed to the external thread of the inner tank of the water storage water heater is provided on the side of the mounting screw head close to the second rod core, and a second connecting portion fixedly connected to the second rod core is provided on the mounting screw head at the center of the internal thread section, and a second disassembly section cooperating with a wrench tool is provided on the side of the mounting screw head away from the second rod core.

[0019] Furthermore, the sacrificial anode structure also includes a sealing ring, which is sleeved on the second connecting portion of the mounting screw head to ensure the sealing of the mounting screw head when it is connected to the inner tank of the water storage water heater.

[0020] Furthermore, the first rod core and the second rod core are made of Q235A, 45# steel or ML08Al.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The sacrificial anode structure provided by the utility model mainly consists of a sacrificial anode substrate (magnesium rod), a first rod core, a mounting screw head, a second rod core, a resistor and an injection molded component; wherein the first rod core is embedded in the sacrificial anode substrate, the mounting screw head and the second rod core are integrated as a whole, and the exposed part of the first rod core is connected to the second rod core through the resistor, and during assembly, it is only necessary to connect the mounting screw head and the second rod core integrated as a whole with the injection molded component formed by the injection molding process of the sacrificial anode substrate to obtain the target sacrificial anode structure, because the top of the injection molded component wraps a part of the bottom of the mounting screw head, and an anti-rotation structure is provided between the bottom of the injection molded component and the sacrificial anode substrate, and the injection molded component completely wraps the resistor, so the sacrificial anode structure of the utility model can achieve reliable connection while greatly reducing the use of parts, simplifying the assembly process, reducing production costs, and improving corporate competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings herein are incorporated into and constitute a part of this specification, and together with the description, are used to explain the principles of the present utility model.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a cross-sectional schematic diagram of the sacrificial anode structure of Example 1 of the utility model (the mounting screw head is an external thread screw head, and the mounting screw head and the second rod core are directly formed as one piece by cold heading);

[0026] Figure 2It is a cross-sectional schematic diagram of the anode structure in Example 1 of the utility model (the mounting screw head is an external thread screw head, and the mounting screw head and the second rod core are pre-fixed and connected as a whole through threads);

[0027] Figure 3 It is a cross-sectional schematic diagram of the anode structure in Example 1 of the utility model (the mounting screw head is an external thread screw head, and the mounting screw head and the second rod core are pre-fixed and connected as one body by stamping);

[0028] Figure 4 It is a cross-sectional schematic diagram of the anode structure in Example 1 of the utility model (the mounting screw head is an external thread screw head, and the mounting screw head and the second rod core are pre-fixed and connected as a whole by welding);

[0029] Figure 5 for Figure 2 Middle AA section view (Example 1 anti-rotation structure);

[0030] Figure 6 for Figure 3 Middle BB cross-sectional view (Example 2 anti-rotation structure);

[0031] Figure 7 for Figure 4 Middle CC sectional view (Example 3 anti-rotation structure);

[0032] Figure 8 This is a cross-sectional schematic diagram of the sacrificial anode structure of Example 1 of the utility model (the mounting screw head is another type of external thread screw head, and the mounting screw head and the second rod core are directly formed as one piece by cold heading);

[0033] Fig. 9 This is a cross-sectional schematic diagram of the sacrificial anode structure of Example 2 of the utility model (the mounting screw head is an internal thread screw head, and the mounting screw head and the second rod core are directly formed as one piece by cold heading);

[0034] Fig.10 This is a cross-sectional schematic diagram of the sacrificial anode structure of Example 2 of the utility model (the mounting screw head is an internal thread screw head, and the mounting screw head and the second rod core are directly pre-fixed and connected as a whole by other means);

[0035] Among them: 1 is a sacrificial anode substrate; 2 is a first rod core; 3 is a mounting screw head; 4 is a second rod core; 5 is a resistor; 6 is an injection molded component; 7 is an anti-rotation structure; 8 is a sealing ring; 31 is an external thread section; 32 is a first connecting portion; 33 is a first disassembly section; 34 is an internal thread section; 35 is a second connecting portion; 36 is a second disassembly section. DETAILED DESCRIPTION

[0036] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the utility model. Instead, they are only examples of devices consistent with some aspects of the utility model as detailed in the attached claims.

[0037] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. The utility model is divided into the following two embodiments for explanation according to the different thread structures (internal thread or external thread) of the inner tank of the water storage water heater:

[0038] Example 1

[0039] See also Figures 1 to 8The embodiment of the utility model provides a resistance sacrificial anode structure with a partially integrated design, which is used to adapt to the situation where the inner tank of a water storage water heater is internally threaded, and includes a cylindrical sacrificial anode substrate 1 and a coaxially arranged first rod core 2. The sacrificial anode substrate 1 is preferably a magnesium rod, a part of the first rod core 2 is embedded in the center position of one end of the sacrificial anode substrate 1, and the other part is exposed outside the sacrificial anode substrate 1. The sacrificial anode substrate 1 is located above one end of the first rod core 2 and is provided with a mounting screw head 3, a second rod core 4 and a resistor 5 from top to bottom. Among them, the first rod core 2 and the second rod core 4 are coaxially arranged and electrically connected through the resistor 5 and the wire. When specifically connected, the lower end electrode of the resistor 5 is wound on the first rod core 2 exposed to the outside of the sacrificial anode substrate 1 through the first wire, and the upper end electrode is wound on the bottom of the second rod core 4 through the second wire; it should be particularly noted that in the utility model, the mounting screw head 3 and the second rod core 4 are integrated as one, and the mounting screw head 3 and the second rod core 4 integrated as one are connected to the sacrificial anode substrate 1 by an injection molding component 6 formed by injection molding. The material of the injection molding component 6 can be PP or PA, that is, the target resistor sacrificial anode structure is obtained. It can be seen from the above settings that when assembling the sacrificial anode structure of the utility model, it is only necessary to first electrically connect the integrated mounting screw head 3 and the second rod core 4 with the first rod core 2 exposed outside the sacrificial anode substrate 1 through the resistor 5, and finally connect the integrated component (mounting screw head 3 and second rod core 4) with the sacrificial anode substrate 1 through the injection molding component 3 formed by injection molding to obtain the target product. Since the injection molding component 6 of this product completely wraps the first rod core 2, the first wire, the resistor 5, the second wire, one end of the second rod core 4 and the bottom of the mounting screw head 3 exposed outside the sacrificial anode substrate 1, the structure reduces the number of parts used, reduces the difficulty of assembly and production costs, and at the same time improves the stability of the mounting screw head 3, ensuring the reliability of the mounting screw head 3 when connected to the inner tank of the water storage water heater.

[0040] Furthermore, the injection molded part 6 formed by the injection process in the embodiment of the utility model is a cylindrical structure. Preferably, the cylindrical injection molded part 6 is coaxially arranged with the sacrificial anode substrate 1 and the outer diameters of the two are the same, so that the overall appearance of the product is beautiful and consistent.

[0041] In the embodiment of the utility model, the mounting screw head 3 is an external thread mounting screw head so as to be connected with the internal thread of the inner tank of the water storage water heater. Specifically, the side of the mounting screw head 3 close to the second rod core 4 is provided with an external thread section 31 which is screwed with the internal thread of the inner tank of the water storage water heater, and the center position of the mounting screw head 3 is provided with a first connecting portion 32 which is connected to the second rod core 4 as a whole (if the second rod core 4 and the mounting screw head 3 are formed as one piece, the connecting portion is not required, such as Figure 1 , 8As shown), a first disassembly section 33 is provided on the side of the mounting screw head 3 away from the second rod core 4. The first disassembly section 33 can be provided with an external hexagon or internal hexagon that matches the wrench tool as needed. When it is an internal hexagon, the circumscribed circle diameter of the internal hexagon is smaller than the maximum outer diameter of the mounting screw head 3.

[0042] In the embodiment of the utility model, the mounting screw head 3 and the second rod core 4 are integrated as one body, preferably directly formed as one body by cold heading, such as Figure 1 , 8 In addition, the mounting screw head 3 and the second rod core 4 can also be pre-fixed and connected as a whole by means of threading, stamping or welding. Specifically, when the mounting screw head 3 and the second rod core 4 are threadedly connected, the first connecting portion 32 of the mounting screw head 3 is provided with an internal thread, and the top end of the second rod core 4 is provided with an external thread connected with the internal thread, and glue is applied during the threaded connection, as shown in FIG. Figure 2 When the mounting screw head 3 is connected to the second rod core 4 by stamping, a through hole is provided in the first connecting portion 32 of the mounting screw head 3, and the through hole is connected to the top of the second rod core 4 by a tight fit by stamping, as shown Figure 3 As shown; when the mounting screw head 3 is welded to the second rod core 4, a through hole is provided at the first connecting portion 32 of the mounting screw head 3, and the diameter of the through hole is larger than the outer diameter of the top end of the second rod core 4. After the second rod core 4 is inserted into the through hole, a circle is welded at the junction of the two by welding, as shown in FIG. Figure 4 Of course, the mounting screw head 3 and the second rod core 4 can also be fixedly connected in other ways, as long as the two can be pre-fixedly connected as one, and the utility model does not make specific limitations.

[0043] When the mounting screw head 3 is an external thread screw head, the mounting screw head 3 of the utility model embodiment has at least the following two specific structures: one is a smooth transition between the external thread section 31 and the first disassembly section 33, such as Figures 1 to 4 As shown, when the screw head 3 is installed and screwed to the inner tank of the water storage water heater, in order to ensure the sealing of the connection, sealant is generally applied to the threaded surfaces of both; another method is to use an intermediate connecting section as a transition between the external thread section 31 and the first disassembly section 33, such as Figure 8 As shown, the first disassembly section 33 is preferably an external hexagonal structure, the middle connecting section is a disc structure, and the outer diameter of the middle connecting section is respectively larger than the maximum outer diameter of the external thread section 31 and the outer diameter of the circumscribed circle of the first disassembly section 33. At this time, when the screw head 3 is installed and screwed to the inner tank of the water storage water heater, in order to ensure the sealing of the connection, a sealing ring is generally sleeved on the step surface formed by the middle connecting section and the external thread section 31. In this way, as the screw head 3 is installed and connected to the inner tank of the water storage water heater and is gradually tightened, the sealing ring will be squeezed to deform, thereby preventing the risk of water in the inner tank of the water storage water heater from leaking out of the connection.

[0044] In addition, in order to increase the stability of the connection between the injection molded component 6 and the upper and lower parts and prevent the upper and lower related parts from easily detaching from the injection molded component 6, the utility model sets the end of the second rod core 4 located in the injection molded component 6 as a stepped structure in this embodiment. In addition to increasing the stability of the connection, it can also prevent the formation of a gap between the second rod core 4 and the injection molded component 6, causing water to penetrate into the resistor part and cause functional abnormalities; preferably, when the resistor 5 is electrically connected to the second rod core 4, the second wire is wrapped around the step surface of the second rod core 4 to prevent the wire from detaching from the second rod core 4 due to gravity factors. At the same time, a circular groove (not shown in the figure) is provided at the end of the first rod core 2 extending into the injection molded component 6, even if the injection molded component 6 and the related parts connected to the upper and lower parts are related to each other, thereby ensuring the reliability of the connection.

[0045] It should be noted that, in order to prevent the injection molded component 6 and the sacrificial anode substrate 1 from circumferential looseness and increase the reliability of the connection, an anti-rotation structure 7 is provided between the two in the embodiment of the utility model. The anti-rotation structure 7 includes a snap-fit ​​groove and / or a snap-fit ​​protrusion axially arranged at the end of the sacrificial anode substrate 1, and a snap-fit ​​protrusion and / or a snap-fit ​​groove axially arranged at the end of the injection molded component 6 to match the snap-fit ​​groove and / or the snap-fit ​​protrusion. The cross section of the snap-fit ​​protrusion or the snap-fit ​​groove can be Figures 5 to 7 The triangle, rectangle or cross shape listed can of course also take other cross-sectional shapes, which are not listed one by one, as long as the materials of the two are blended together and become resistance to each other during circumferential twisting.

[0046] In the embodiment of the utility model, the material of the first rod core 2 and the second rod core 4 is Q235A, 45# steel or ML08Al, and the resistance value of the resistor 5 can be selected and adapted according to actual conditions.

[0047] Example 2

[0048] The resistance sacrificial anode structure of the utility model embodiment is used to adapt to the situation where the inner tank of the water storage type water heater is externally threaded. The resistance sacrificial anode structure is as follows Fig. 9 , 10 As shown, the only difference from Example 1 is that the mounting screw head 3 of this embodiment is an internal thread mounting screw head, and the mounting screw head 3 is provided with an internal thread segment 34 screwed with the external thread of the inner tank of the water storage water heater on one side close to the second rod core 4, and a second connecting portion 35 fixedly connected to the second rod core 4 is provided on the mounting screw head 3 at the center of the internal thread segment 34 (if the second rod core 4 and the mounting screw head 3 are integrally formed, the connecting portion is not required, such as Fig. 9 As shown), a second disassembly section 36 cooperating with a wrench tool is provided on a side of the mounting screw head 3 away from the second rod core 4, and the second disassembly section 36 can be selected to be an inner hexagon or an outer hexagon.

[0049] Furthermore, the sacrificial anode structure of the embodiment of the utility model further includes a sealing ring 8, which is sleeved on the second connecting portion 35 of the mounting screw head 3 to ensure the sealing of the mounting screw head 3 when connected to the inner tank of the water storage water heater.

[0050] The mounting screw head 3 and the second rod core 4 of the utility model embodiment can also be integrally formed by cold heading, such as Fig. 9 As shown, the installation screw head 3 and the second rod core 4 are pre-fixed and connected as one by threading, stamping or welding or other methods, such as Fig.10 As shown; in addition, in the embodiment of the utility model, an anti-rotation structure 7 which is the same as that in embodiment 1 is provided between the injection molded component 6 and the sacrificial anode substrate 1, and the specific details are not repeated here.

[0051] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0052] It should be understood that the present invention is not limited to the above-described contents, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A resistive sacrificial anode structure with a partially integrated design, characterized in that: The invention comprises a cylindrical sacrificial anode substrate (1) and a coaxially arranged first rod core (2), wherein a portion of the first rod core (2) is embedded in the sacrificial anode substrate (1) and another portion is exposed outside the sacrificial anode substrate (1), and the sacrificial anode substrate (1) is located above one end of the first rod core (2) and is provided with a mounting screw head (3), a second rod core (4) and a resistor (5) in sequence from top to bottom; One end electrode of the resistor (5) is electrically connected to a first rod core (2) exposed outside the sacrificial anode substrate (1) through a first wire, and the other end electrode is electrically connected to a second rod core (4) through a second wire; the mounting screw head (3) and the second rod core (4) are integrated into one body, and the mounting screw head (3) and the second rod core (4) integrated into one body are connected to an injection molded component (6) formed by injection molding of the sacrificial anode substrate (1).

2. The resistive sacrificial anode structure with a partially integrated design according to claim 1, characterized in that: The mounting screw head (3) and the second rod core (4) are directly formed as one piece by cold heading; or the mounting screw head (3) and the second rod core (4) are pre-fixedly connected as one piece by threading, stamping or welding.

3. The resistive sacrificial anode structure with a partially integrated design according to claim 1, characterized in that: The injection molded component (6) has a cylindrical structure.

4. The resistive sacrificial anode structure with a partially integrated design according to claim 3, characterized in that: The second rod core (4) is coaxial with the first rod core (2), and the portion of the second rod core (4) located inside the injection molded component (6) is provided with a stepped structure to increase the stability of the connection.

5. The resistive sacrificial anode structure with a partially integrated design according to claim 3, characterized in that: An anti-rotation structure (7) is provided between the injection-molded component (6) and the sacrificial anode substrate (1).

6. The resistive sacrificial anode structure with a partially integrated design according to claim 5, characterized in that: The anti-rotation structure (7) comprises a snap-in groove and / or a snap-in protrusion axially arranged at the end of the sacrificial anode substrate (1), and a snap-in protrusion and / or a snap-in groove axially arranged at the end of the injection molded component (6) and matching with the snap-in groove and / or the snap-in protrusion, and the matching snap-in protrusion and the snap-in groove serve as resistance to each other, so as to prevent the sacrificial anode substrate (1) from rotating circumferentially relative to the injection molded component (6).

7. The resistive sacrificial anode structure with a partially integrated design according to claim 1, characterized in that: An external thread section (31) is provided on a side of the installation screw head (3) close to the second rod core (4) and is threadedly connected to the internal thread of the inner tank of the water storage water heater, and a first connecting portion (32) connected to the second rod core (4) is provided at the center of the installation screw head (3), and a first disassembly section (33) that cooperates with a wrench tool is provided on a side of the installation screw head (3) away from the second rod core (4).

8. The resistive sacrificial anode structure with a partially integrated design according to claim 1, characterized in that: An internal thread section (34) is provided on the side of the installation screw head (3) close to the second rod core (4) and is threadedly connected to the external thread of the inner tank of the water storage water heater, and a second connecting portion (35) is provided on the installation screw head (3) at the center of the internal thread section (34) and is fixedly connected to the second rod core (4) as a whole, and a second disassembly section (36) that cooperates with a wrench tool is provided on the side of the installation screw head (3) away from the second rod core (4).

9. The resistive sacrificial anode structure with a partially integrated design according to claim 8, characterized in that: The sacrificial anode structure also includes a sealing ring (8), which is sleeved on the second connecting portion (35) of the mounting screw head (3) and is used to ensure the sealing performance of the mounting screw head (3) when it is connected to the inner tank of the water storage water heater.

10. The resistive sacrificial anode structure with a partially integrated design according to any one of claims 1 to 9, characterized in that: The first rod core (2) and the second rod core (4) are made of Q235A, 45# steel or ML08Al.

Images