A fuse quick replacement structure for power equipment

By adopting a mounting base and protective cover design in power equipment, the problems of cumbersome operation and insufficient protection in fuse replacement are solved, achieving rapid replacement and dust prevention, and improving the practicality of fuses.

CN224366822UActive Publication Date: 2026-06-16YICHANG YONGTONG ELECTRICAL EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YICHANG YONGTONG ELECTRICAL EQUIP CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The replacement of fuses in existing power equipment is cumbersome and lacks effective protection, resulting in low replacement efficiency and the entry of dust and debris, which affects normal operation.

Method used

The design incorporates a mounting base, sliding plate, and protective cover. The inclined structure and pressure spring enable quick fixing and removal of the fuse, while the protective cover prevents dust from entering.

Benefits of technology

It enables rapid fuse replacement and effective protection, improves operational efficiency, prevents dust and debris from entering, and extends the service life of fuses.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224366822U_ABST
    Figure CN224366822U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of fuse quick replacement structure for electric power equipment, it is related to fuse technical field, including installation base, the side of installation base is equipped with installation groove, the both sides of installation base are fixedly connected with two thread hole plates, the inside sliding connection of installation groove has mounting plate, the side fixed mounting of mounting plate has fuse body, the both sides of mounting plate are fixedly connected with installation clamping plate, by the opposite pressure of the top end bevel of two sides sliding clamping plate bottom end bevel to mounting clamping plate, to fix mounting clamping plate, to facilitate the fixing of fuse body in the inside of installation base, operation process is simple and fast, can make fuse body dismounting speed be improved, simultaneously by the cooperation of protective cover, fuse body can be protected outside, to play the role of dustproof protection, can make the practicability of this quick replacement structure be improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of fuse technology, and in particular to a quick-replacement structure for fuses used in power equipment. Background Technology

[0002] In power systems, fuses, as overcurrent protection devices, can cut off the circuit by melting when overload or short circuit occurs, thereby protecting the safety of power equipment and lines. However, the replacement structure of fuses used in power equipment is generally cumbersome to operate and has low replacement efficiency.

[0003] Traditional fuse installation structures often use bolt fastening methods. When replacing a fuse, it is necessary to use special tools to unscrew multiple bolts one by one, which is not only time-consuming, but also extremely inconvenient in the confined space of electrical equipment. This makes it difficult to install fuses quickly. At the same time, existing fuse installation structures lack effective protective measures, allowing dust and debris to easily enter during operation, affecting the normal working performance of the fuse and increasing the probability of failure. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a quick replacement structure for fuses in power equipment, which can solve the problem of inconvenient quick installation of fuses, and the lack of effective protective measures in the existing fuse installation structure.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-replacement structure for fuses in power equipment, comprising a mounting base, a mounting groove on one side of the mounting base, two threaded hole plates fixedly connected to both sides of the mounting base, a mounting plate slidably connected inside the mounting groove, a fuse body fixedly mounted on one side of the mounting plate, mounting clips fixedly connected to both sides of the mounting plate, the two mounting clips slidingly contacting the sides of the inner wall of the mounting groove respectively, grooves being provided on both sides of the inner wall of the mounting groove, and fixing components being provided on both sides of the inner wall of the mounting groove, the fixing components including sliding clips, the outer surface of the sliding clips slidingly connected to the inner wall of the grooves, the upper and lower ends of the sliding clips and the mounting clips being inclined and mutually slidingly adapted.

[0006] Preferably, a limit block is fixedly installed on one side of the sliding plate, and a pressure spring is fixedly connected to one end of the limit block.

[0007] Preferably, a limiting groove is formed on one side of the inner wall of the groove, the inner wall of the limiting groove is slidably connected to one end of the limiting block, and the end of the pressure spring away from the limiting block is fixedly connected to the inner wall of the limiting groove.

[0008] Preferably, there are two fixing components, both of which have the same structure and are respectively disposed inside the two grooves.

[0009] Preferably, a protective cover is rotatably mounted on one side of the mounting base. The protective cover is located below the fuse body. A fixing plate is fixedly connected to one side of the protective cover. A first threaded groove is opened inside the fixing plate, and a locking screw is threaded into the first threaded groove.

[0010] Preferably, a second threaded groove is provided on one side of the mounting base. The second threaded groove is located on one side of the fuse body, and the interior of the second threaded groove is adapted to the thread of one end of the locking screw.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This quick-change fuse structure for power equipment uses a sliding plate on both sides to apply relative pressure to the top slope of the mounting plate, thereby fixing the mounting plate and facilitating the fixation of the fuse body inside the mounting base. The operation is simple and quick, improving the speed of fuse body installation and removal. At the same time, the protective cover protects the fuse body from dust, enhancing the practicality of this quick-change structure. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 This is a three-dimensional structural diagram of a quick-replacement structure for a fuse in power equipment according to the present invention.

[0015] Figure 2 This is a schematic diagram of the sliding plate structure of this utility model;

[0016] Figure 3 This is a plan view of the groove of this utility model;

[0017] Figure 4 For the present utility model Figure 2 Enlarged view of point A in the image.

[0018] Reference numerals in the attached drawings: 1. Mounting base; 2. Mounting groove; 3. Threaded hole plate; 4. Mounting plate; 5. Fuse body; 6. Second threaded groove; 7. Protective cover; 8. Fixing plate; 9. First threaded groove; 10. Locking screw; 11. Mounting clamping plate; 12. Sliding clamping plate; 13. Groove; 14. Limiting groove; 15. Pressure spring; 16. Limiting block. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 this utility model.

[0021] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a quick-replacement structure for fuses in power equipment, including a mounting base 1, a mounting groove 2 on one side of the mounting base 1, two threaded hole plates 3 fixedly connected to both sides of the mounting base 1, a mounting plate 4 slidably connected inside the mounting groove 2, a fuse body 5 fixedly mounted on one side of the mounting plate 4, mounting clamping plates 11 fixedly connected to both sides of the mounting plate 4, the two sides of the two mounting clamping plates 11 respectively slidingly contacting the two sides of the inner wall of the mounting groove 2, grooves 13 on both sides of the inner wall of the mounting groove 2, and fixing components provided on both sides of the inner wall of the mounting groove 2, the fixing components including sliding clamping plates, the outer surface of the sliding clamping plates 12 slidably connected to the inner wall of the grooves 13, the upper and lower ends of the sliding clamping plates 12 and the mounting clamping plates 11 are both inclined and mutually slidingly adapted.

[0024] Furthermore, a limit block 16 is fixedly installed on one side of the sliding plate 12, and a pressure spring 15 is fixedly connected to one end of the limit block 16.

[0025] Furthermore, a limiting groove 14 is formed on one side of the inner wall of the groove 13. The inner wall of the limiting groove 14 is slidably connected to one end of the limiting block 16, and the end of the pressure spring 15 away from the limiting block 16 is fixedly connected to the inner wall of the limiting groove 14.

[0026] Furthermore, there are two fixing components, both of which have the same structure and are respectively set inside the two grooves 13.

[0027] Furthermore, a protective cover 7 is rotatably mounted on one side of the mounting base 1. The protective cover 7 is located below the fuse body 5. A fixing plate 8 is fixedly connected to one side of the protective cover 7. A first threaded groove 9 is opened inside the fixing plate 8. A locking screw 10 is threadedly connected inside the first threaded groove 9.

[0028] Furthermore, a second threaded groove 6 is provided on one side of the mounting base 1. The second threaded groove 6 is located on one side of the fuse body 5, and the interior of the second threaded groove 6 is adapted to the thread of one end of the locking screw 10.

[0029] Furthermore, before the fuse body 5 is installed, the mounting base 1 can be fixed to the power equipment through the threaded hole plate 3, which facilitates the subsequent disassembly and use of the fuse body 5.

[0030] Furthermore, during fuse installation, the mounting plate 4, along with the fuse body 5, is aligned with the mounting groove 2 of the mounting base 1, so that the mounting clips 11 on both sides of the mounting plate 4 fit against the inner wall of the mounting groove 2. The mounting plate 4 is pushed downwards along the inside of the mounting groove 2. As the mounting clips 11 are pushed into the mounting groove 2, the bottom inclined surfaces of the mounting clips 11 on both sides will contact and apply pressure to the top inclined surfaces of the sliding clips 12 on both sides, causing the two sliding clips 12 to slide in opposite directions in the groove 13. Then, the two sliding clips 12 respectively drive the corresponding limiting blocks 16 to slide in the corresponding limiting grooves 14, thereby simultaneously compressing the two When the mounting plate 4 is fully pushed into the mounting groove 2 and reaches the predetermined position, the two pressure springs 15, due to their own elastic deformation, push the corresponding limit block 16 and sliding plate 12 to reset. At this time, the bottom slope of the sliding plate 12 on both sides will apply relative pressure to the top slope of the mounting plate 11, thereby fixing the mounting plate 11. This makes it easy to fix the fuse body 5 inside the mounting base 1. The operation is simple and quick. When it is necessary to release the fixation, just slide the fuse body 5 upward slightly to drive the mounting plate 4 out of the mounting groove 2.

[0031] Furthermore, after installation, to provide protection for the fuse body 5, the protective cover 7 is rotated upwards to cover the outside of the fuse body 5. Then, the inside of the first threaded groove 9 is aligned with the inside of the second threaded groove 6. Next, the locking screw 10 is screwed into the first threaded groove 9 and into the second threaded groove 6. The protective cover 7 is firmly fixed to the mounting base 1 through the threaded connection, thereby preventing external debris and dust from entering to a certain extent, thus protecting the fuse body 5.

[0032] Structural Description:

[0033] Mounting base 1: As the basic component of the entire structure, it provides a mounting support platform for other components. The mounting groove 2 on one side is used to accommodate the mounting plate 4 and the fuse body 5. The threaded hole plates 3 on both sides facilitate the fixing of the mounting base 1 to the power equipment, so as to achieve a stable installation of the overall structure.

[0034] Mounting slot 2: It is opened on one side of the mounting base 1 to provide a track for the sliding of the mounting plate 4. Its inner wall is in sliding contact with the mounting plate 11 to ensure that the mounting plate 4 can move in a fixed direction during installation and disassembly. At the same time, it cooperates with the fixing component to fix and release the mounting plate 4.

[0035] Threaded hole plate 3: Fixedly connected to both sides of the mounting base 1. Four are set for each mounting base 1. The mounting base 1 can be firmly installed on the power equipment through bolts and other connecting parts, so that the entire fuse replacement structure is stably connected to the power equipment and the stability is guaranteed during operation.

[0036] Mounting plate 4: As a supporting component of the fuse body 5, its outer surface is slidably connected to the inner wall of the mounting groove 2. Through the cooperation of the mounting clips 11 on both sides and the fixing components, the mounting plate 4 can be fixed and disassembled in the mounting groove 2, thereby facilitating the replacement of the fuse body 5.

[0037] Fuse body 5: This is the core functional component of the structure. It is used to cut off the circuit by melting itself when the power equipment circuit is overloaded or short-circuited, so as to protect the power equipment and line safety. It is installed on one side of the mounting plate 4 and can be quickly installed and removed with the mounting plate 4.

[0038] The second threaded groove 6 is located on one side of the mounting base 1, next to the fuse body 5. It cooperates with the first threaded groove 9 of the fixing plate 8 on the protective cover 7. Through the threaded connection of the locking screw 10, the protective cover 7 is fixed to the mounting base 1, providing protection for the fuse body 5.

[0039] Protective cover 7: Rotatably installed on one side of the mounting base 1, located below the fuse body 5. After installation, it can be rotated upward to cover the outside of the fuse body 5, preventing external debris and dust from entering, thus protecting the fuse body 5 and extending its service life. There is a certain space at the bottom of the protective cover 7 to allow the connecting wire to pass through, which will not affect the normal use of the fuse body 5.

[0040] Fixed plate 8: It is fixedly connected to one side of the protective cover 7. The first threaded groove 9 inside is aligned with the second threaded groove 6 on the mounting base 1 and is used to cooperate with the locking screw 10 to firmly fix the protective cover 7 on the mounting base 1 to ensure the protective effect.

[0041] First threaded groove 9: It is opened inside the fixed plate 8 and together with the second threaded groove 6 and the locking screw 10, it forms the fixing structure of the protective cover 7. The protective cover 7 and the mounting base 1 are fastened together through threaded connection.

[0042] Locking screw 10: It is threaded into the first threaded groove 9 and screwed into the second threaded groove 6. By tightening or loosening, the protective cover 7 and the mounting base 1 can be fixed and separated, which facilitates the maintenance of the fuse body 5.

[0043] Mounting plate 11: It is fixedly connected to both sides of the mounting plate 4. Its outer surface slides in contact with the inner wall of the mounting groove 2. The inclined surfaces at the upper and lower ends are adapted to the inclined surfaces of the sliding plate 12. During installation and disassembly, the mounting plate 4 is fixed and released in the mounting groove 2 by interacting with the inclined surfaces of the sliding plate 12.

[0044] Sliding plate 12: As a key component of the fixing assembly, its outer surface is slidably connected to the inner wall of the groove 13. Both the upper and lower ends of the mounting plate 11 are inclined and mutually slidingly adapted. Under the action of the pressure spring 15, the mounting plate 11 can be fixed or released, thereby realizing the quick installation and removal of the fuse body 5.

[0045] Groove 13: It is formed on both sides of the inner wall of the mounting groove 2 to provide sliding space for the sliding plate 12, so that it can slide in the groove 13 in a predetermined direction and cooperate with the mounting plate 11 to fix and unlock the mounting plate 4.

[0046] Limiting groove 14: It is formed on one side of the inner wall of the groove 13 and cooperates with the limiting block 16 to provide guidance and limit for the sliding of the limiting block 16, ensuring that the sliding plate 12 remains stable during the sliding process, and at the same time, it cooperates with the pressure spring 15 to realize the reset of the sliding plate 12.

[0047] Pressure spring 15: One end is fixedly connected to the limiting block 16, and the other end is fixedly connected to the inner wall of the limiting groove 14. It uses the elastic force generated by its own elastic deformation to push the limiting block 16 and the sliding plate 12 to reset, thereby fixing the mounting plate 11 and ensuring the stability of the fuse body 5 after installation.

[0048] Limiting block 16: It is fixedly installed on one side of the sliding plate 12, and one end is connected to the pressure spring 15. During the sliding process of the sliding plate 12, it slides in the limiting groove 14, which plays a guiding and limiting role, and at the same time transmits the elastic force of the pressure spring 15 so that the sliding plate 12 can be accurately reset.

[0049] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A quick-change structure for fuses in power equipment, comprising a mounting base (1), characterized in that: The mounting base (1) has a mounting groove (2) on one side. Two threaded hole plates (3) are fixedly connected to both sides of the mounting base (1). A mounting plate (4) is slidably connected inside the mounting groove (2). A fuse body (5) is fixedly installed on one side of the mounting plate (4). Mounting clips (11) are fixedly connected to both sides of the mounting plate (4). The two mounting clips (11) are slidably contacted with the two sides of the inner wall of the mounting groove (2). Grooves (13) are opened on both sides of the inner wall of the mounting groove (2). Fixing components are provided on both sides of the inner wall of the mounting groove (2). The fixing components include sliding clips. The outer surface of the sliding clip (12) is slidably connected to the inner wall of the groove (13). The upper and lower ends of the sliding clip (12) and the mounting clip (11) are both inclined and slidably adapted to each other.

2. The quick-replacement structure for fuses in power equipment according to claim 1, characterized in that: A limit block (16) is fixedly installed on one side of the sliding plate (12), and a pressure spring (15) is fixedly connected to one end of the limit block (16).

3. The quick-replacement structure for fuses in power equipment according to claim 2, characterized in that: A limiting groove (14) is provided on one side of the inner wall of the groove (13). The inner wall of the limiting groove (14) is slidably connected to one end of the limiting block (16). The end of the pressure spring (15) away from the limiting block (16) is fixedly connected to the inner wall of the limiting groove (14).

4. The quick-replacement structure for fuses in power equipment according to claim 1, characterized in that: There are two fixing components, both of which have the same structure and are respectively set inside the two grooves (13).

5. The quick-replacement structure for fuses in power equipment according to claim 1, characterized in that: A protective cover (7) is rotatably mounted on one side of the mounting base (1). The protective cover (7) is located below the fuse body (5). A fixing plate (8) is fixedly connected to one side of the protective cover (7). A first threaded groove (9) is opened inside the fixing plate (8). A locking screw (10) is threaded inside the first threaded groove (9).

6. The quick-replacement structure for a fuse in power equipment according to claim 5, characterized in that: The mounting base (1) has a second threaded groove (6) on one side. The second threaded groove (6) is located on one side of the fuse body (5). The interior of the second threaded groove (6) is threaded to one end of the locking screw (10).