Resistance box with high protection performance
By setting up a multi-layer protective structure on the resistor box, including alloy materials and manganese steel layers, a corrosion-resistant protective film is formed, which solves the problem of resistor box damage due to corrosion, extends service life, and improves the durability and strength of the resistor box.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-31
AI Technical Summary
Existing resistor boxes have poor corrosion resistance and cannot effectively protect against corrosion, leading to damage from external factors, shortening their service life, and requiring frequent maintenance and repair.
It adopts a multi-layer protective structure, including a strength layer, a corrosion-resistant layer and a protective layer. Alloy materials and manganese steel layers are used to enhance corrosion resistance, and a protective film is formed by acrylic paint and epoxy primer to prevent moisture and air penetration. Combined with anti-rust topcoat and alkyd paint, adhesion and durability are improved.
It significantly improves the corrosion resistance of the resistance box, extends its service life, reduces the maintenance frequency, and enhances the strength and rigidity of the resistance box.
Smart Images

Figure CN224067492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of resistance boxes, and in particular to a resistance box with high protection. Background Technology
[0002] Rotary resistance boxes are used in DC circuits for adjustable resistance. They have a low zero resistance and are the most commonly used instruments in all laboratories. They are suitable for electrical measurement and other experiments in schools, factories and research institutions.
[0003] Existing resistor boxes have poor corrosion resistance and cannot be protected. They are susceptible to corrosion and damage due to external factors, which shortens their service life and requires frequent maintenance and repair.
[0004] Therefore, it is necessary to provide a highly protective resistor box to solve the above-mentioned technical problems. The information disclosed in this background section is only intended to enhance the understanding of the overall background of the present invention, and is not necessarily to be regarded as an admission or in any way implying that the information constitutes prior art that has become known to those skilled in the art. Utility Model Content
[0005] This invention provides a highly protective resistor box, solving the technical problems of existing resistor boxes, which have poor corrosion resistance, cannot protect the resistor box from corrosion caused by external factors, resulting in damage, shortened service life, and the need for frequent maintenance and repair.
[0006] To solve the above-mentioned technical problems, this utility model provides a highly protective resistance box, including a resistance box body, an adjustment component on the front of the resistance box body, a strength layer on the surface of the resistance box body, a rust-resistant layer on the outer surface of the strength layer, a protective layer on the outer surface of the rust-resistant layer, the strength layer including an alloy material layer, a manganese steel layer on the outer surface of the alloy material layer, the rust-resistant layer including an epoxy primer layer, an acrylic paint layer on the outer surface of the epoxy primer layer, and a rust-proof topcoat layer on the outer surface of the rust-proof topcoat layer.
[0007] Preferably, the thickness of the manganese steel layer is the same as the thickness of the alloy material layer.
[0008] Preferably, the thickness of the acrylic paint layer is the same as the thickness of the epoxy primer layer.
[0009] Preferably, the thickness of the alkyd paint layer is the same as the thickness of the anti-rust topcoat layer.
[0010] Preferably, a maintenance cover is installed at the bottom of the resistor box body by screws, and the material of the maintenance cover is the same as that of the resistor box body.
[0011] Preferably, the outer surface of the strength layer is bonded to the inner surface of the corrosion-resistant layer, and the outer surface of the corrosion-resistant layer is bonded to the inner surface of the protective layer.
[0012] Compared with related technologies, the resistance box with high protection provided by this utility model has the following beneficial effects:
[0013] This invention provides a highly protective resistor box. Through a rust-resistant layer, it exhibits excellent corrosion resistance, effectively resisting the erosion of chemical substances, thereby protecting the metal surface from corrosion, extending the service life of the metal, and increasing the corrosion resistance of the resistor box body. The protective layer has good adhesion and durability, making it suitable for protecting metal surfaces. By forming a protective film on the metal surface, it prevents the penetration of moisture and air, thereby reducing the chance of metal oxidation, lowering the risk of rust, and extending the service life of the resistor box body.
[0014] This utility model provides a highly protective resistor box. The inspection cover facilitates the opening of the resistor box body, making it convenient for users to clean the resistor box body and inspect the internal components. Attached Figure Description
[0015] Figure 1 A schematic diagram of a preferred embodiment of a highly protective resistor box provided by this utility model;
[0016] Figure 2 This is a partial cross-sectional view of the main structure of the resistor box of this utility model;
[0017] Figure 3 This is a partial cross-sectional view of the strength layer structure of this utility model;
[0018] Figure 4 This is a partial cross-sectional view of the rust-resistant layer structure of this utility model;
[0019] Figure 5 This is a partial cross-sectional view of the protective layer structure of this utility model.
[0020] The following are the labels in the diagram: 1. Resistance box body; 2. Adjustment component; 3. Strength layer; 31. Alloy material layer; 32. Manganese steel layer; 4. Rust-resistant layer; 41. Epoxy primer layer; 42. Acrylic paint layer; 5. Protective layer; 51. Rust-proof topcoat layer; 52. Alkyd paint layer. Detailed Implementation
[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.
[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0023] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] Example 1:
[0027] Please see Figure 1-5This utility model provides a technical solution: a highly protective resistor box, including a resistor box body 1, an adjustment component 2 on the front of the resistor box body 1, a strength layer 3 on the surface of the resistor box body 1, a rust-resistant layer 4 on the outer surface of the strength layer 3, a protective layer 5 on the outer surface of the rust-resistant layer 4, the strength layer 3 including an alloy material layer 31, a manganese steel layer 32 on the outer surface of the alloy material layer 31, the rust-resistant layer 4 including an epoxy primer layer 41, an acrylic paint layer 42 on the outer surface of the epoxy primer layer 41, and the protective layer 5 including a rust-proof topcoat layer 51, an alkyd paint layer 52 on the outer surface of the rust-proof topcoat layer 51.
[0028] In this embodiment, the acrylic paint layer 42 and the epoxy primer layer 41 have excellent corrosion resistance and can effectively resist the erosion of chemical substances, thereby protecting the metal surface from corrosion, extending the service life of the metal, and increasing the corrosion resistance of the resistor box body 1. The anti-rust topcoat layer 51 and the alkyd paint layer 52 have good adhesion and durability, and are suitable for protecting the metal surface. By forming a protective film on the metal surface, the penetration of moisture and air is hindered, thereby reducing the chance of metal oxidation, reducing the risk of rust, and extending the service life of the resistor box body 1.
[0029] Example 2:
[0030] Please see Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: the thickness of the manganese steel layer 32 is the same as the thickness of the alloy material layer 31, the thickness of the acrylic paint layer 42 is the same as the thickness of the epoxy primer layer 41, the thickness of the alkyd paint layer 52 is the same as the thickness of the anti-rust topcoat layer 51, the bottom of the resistor box body 1 is fitted with a maintenance cover by screws, and the material of the maintenance cover is the same as the material of the resistor box body 1, the outer surface of the strength layer 3 is bonded to the inner surface of the rust-resistant layer 4, and the outer surface of the rust-resistant layer 4 is bonded to the inner surface of the protective layer 5.
[0031] In this embodiment: the use strength of the resistor box body 1 is improved by setting the alloy material layer 31. By improving the performance of the metal, the service life of the material can be extended, thereby reducing the demand for metal and enhancing the use strength and hardness of the resistor box body 1. The manganese steel layer 32 can significantly improve the strength and hardness of the steel. In particular, under appropriate conditions, the increase of manganese can significantly improve the maximum strength and hardness of the steel, further improving the use strength of the resistor box body 1.
[0032] The working principle of the highly protective resistance box provided by this utility model is as follows:
[0033] Implementation steps for the first innovation point:
[0034] Step 1: The acrylic paint layer 42 and the epoxy primer layer 41 have excellent corrosion resistance and can effectively resist the erosion of chemical substances, thereby protecting the metal surface from corrosion, extending the service life of the metal, and increasing the corrosion resistance of the resistor box body 1.
[0035] Step 2: The anti-rust topcoat layer 51 and alkyd paint layer 52 have good adhesion and durability, and are suitable for protecting metal surfaces. By forming a protective film on the metal surface, they prevent the penetration of moisture and air, thereby reducing the chance of metal oxidation, reducing the risk of rust, and extending the service life of the resistor box body 1.
[0036] Implementation steps for the second innovation point:
[0037] Step 1: By setting the alloy material layer 31, the strength of the resistor box body 1 is improved. By improving the performance of the metal, the service life of the material can be extended, thereby reducing the demand for metal and enhancing the strength and hardness of the resistor box body 1.
[0038] Step 2: The manganese steel layer 32 can significantly improve the strength and hardness of the steel. In particular, under appropriate conditions, the increase in manganese content can significantly improve the maximum strength and hardness of the steel, further improving the service strength of the resistance box body 1.
[0039] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.
[0040] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0041] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.
Claims
1. A high-protection resistor box comprising a resistor box main body (1), characterized in that: The front surface of the resistance box body (1) is provided with an adjusting assembly (2), the surface of the resistance box body (1) is provided with a strength layer (3), the outer surface of the strength layer (3) is provided with a rust-proof layer (4), the outer surface of the rust-proof layer (4) is provided with a protective layer (5), the strength layer (3) comprises an alloy material layer (31), the outer surface of the alloy material layer (31) is provided with a manganese steel layer (32), the rust-proof layer (4) comprises an epoxy primer layer (41), the outer surface of the epoxy primer layer (41) is provided with an acrylic paint layer (42), the protective layer (5) comprises a rust-proof finish layer (51), and the outer surface of the rust-proof finish layer (51) is provided with an alkyd paint layer (52).
2. The high protection resistance box according to claim 1, characterized in that, The thickness of the manganese steel layer (32) is the same as that of the alloy material layer (31).
3. The high protection resistance box according to claim 1, characterized in that, The thickness of the acrylic paint layer (42) is the same as that of the epoxy primer layer (41).
4. The high protection resistance box according to claim 1, wherein The thickness of the alkyd paint layer (52) is the same as that of the rust-proof finish layer (51).
5. The high protection resistance box according to claim 1, wherein The bottom of the resistance box body (1) is provided with an inspection cover which is fixed by screws and is made of the same material as the resistance box body (1).
6. The high protection resistance box according to claim 1, wherein The outer surface of the strength layer (3) is bonded to the inner surface of the rust-proof layer (4), and the outer surface of the rust-proof layer (4) is bonded to the inner surface of the protective layer (5).