An easy-to-maintain generator rear cover
By designing a C-shaped buckle and spring mechanism on the generator's rear cover, the problem of difficult filter removal is solved, enabling convenient filter removal and heat dissipation, thereby improving the generator's maintenance efficiency and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI XINERGAO ELECTRIC
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-03
AI Technical Summary
The existing generator rear end cover is difficult to disassemble and clean the filter screen quickly after long-term operation, which leads to inconvenience in maintenance and affects its service life.
A generator rear end cover structure that is easy to maintain was designed. It adopts a C-shaped buckle and spring mechanism. By pressing the ring pressure ring, the squeezing block is moved, which realizes the convenient disassembly of the filter screen. Combined with the guide structure of guide shaft and guide hole, the snap-fit stability is improved, and heat sink is set on the outer wall to enhance the heat dissipation effect.
It enables quick disassembly and installation of the filter, improving maintenance convenience, while also enhancing heat dissipation efficiency and extending the generator's service life.
Smart Images

Figure CN224459475U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of generator rear end cover technology, and in particular to a generator rear end cover that is easy to maintain. Background Technology
[0002] Diesel generators are commonly used in civilian applications. A diesel generator is a small power generation device. The rear cover of the generator is one of the main components of the generator. It can protect the internal parts of the generator. Most existing generator rear covers are equipped with filters to achieve heat dissipation and prevent debris from entering the generator.
[0003] Currently, with the long-term operation of the generator, a large amount of dust and debris accumulates on the filter screen of the existing generator rear cover. The generator rear cover is difficult to disassemble and clean quickly, making it inconvenient to maintain. Therefore, in order to improve the service life of the generator rear cover and to promote technological progress in the industry and enhance core technological competitiveness, this application proposes a new implementation scheme that differs from the existing generator rear cover structure and application method. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a generator rear end cover that is easy to maintain, so as to solve one or more problems in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A generator rear end cover that is easy to maintain includes an end cover body. Multiple connecting rods are fixedly connected to the inner circumference of the end cover body. A bushing is fixedly connected to the other end of each connecting rod. A slide rail is provided at the top of each connecting rod. A first latch and a second latch are slidably connected within the slide rail. A connecting plate is fixedly connected between the first latch and the second latch. A filter screen is engaged between the multiple first latches and the multiple second latches. A first guide shaft is fixedly connected between the inner walls of both ends of the slide rail. The first latch and the second latch are slidably sleeved with the first guide shaft. A first spring is sleeved at one end of the first guide shaft. One end of the first spring is fixedly connected to the inner wall of one end of the slide rail. The other end of the first spring is fixedly connected to one side of the first latch. An adjusting shaft is fixedly connected to one side of the first latch. A groove is provided at one end of the adjusting shaft. Multiple through holes are provided around the circumference of the bushing. The adjusting shaft is slidably inserted into the through holes. An annular groove is provided at the top of the bushing. An annular pressure ring is slidably connected within the annular groove. Multiple pressing blocks are fixedly connected to the bottom of the annular pressure ring. An inclined surface is provided at the bottom end of each pressing block, and the bottom end of each pressing block contacts the groove.
[0007] Furthermore, the first and second buckles are C-shaped structures.
[0008] Furthermore, the bottom inner wall of the annular groove is provided with multiple guide holes.
[0009] Furthermore, the bottom of the annular pressure ring is fixedly connected with multiple second guide shafts, which are slidably inserted into the guide holes.
[0010] Furthermore, a second spring is sleeved on the outer wall of the second guide shaft, with the top end of the second spring fixedly connected to the bottom of the annular pressure ring and the bottom end of the second spring fixedly connected to the bottom inner wall of the annular groove.
[0011] Furthermore, multiple heat sinks are fixedly connected to the outer circumference of the end cap body.
[0012] Furthermore, the outer circumferential wall of the end cap body is fixedly connected with multiple connecting ears, and the connecting ears are provided with mounting holes.
[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0014] 1. By pressing down on the annular pressure ring, the squeezing block moves downward, thereby squeezing and adjusting the axial sleeve to move, which in turn moves the first and second clips, thus separating the first and second clips from the filter screen. This facilitates the disassembly and maintenance of the filter screen, making the operation simple, convenient and quick.
[0015] 2. By sliding the second guide shaft into the guide hole, the movement of the annular pressure ring is guided, thereby improving the stability of the filter screen snap-fit. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a generator rear end cover that is easy to maintain, as proposed in this utility model.
[0017] Figure 2 This is an exploded structural diagram of a generator rear end cover that is easy to maintain, as proposed in this utility model.
[0018] Figure 3 This is a cross-sectional view of a generator rear end cover that is easy to maintain, as proposed in this utility model.
[0019] Figure 4 This is an enlarged structural diagram of point A of the generator rear end cover, which is easy to maintain, according to the present invention.
[0020] Figure 5 This is a partially enlarged structural diagram of a generator rear end cover that is easy to maintain, as proposed in this utility model.
[0021] The following are labels in the attached diagram: 1. End cap body; 2. Connecting rod; 3. Bushing; 4. Slide rail; 5. First guide shaft; 6. First spring; 7. First buckle; 8. Second buckle; 9. Connecting plate; 10. Through hole; 11. Adjusting shaft; 12. Groove; 13. Inclined surface; 14. Annular groove; 15. Annular pressure ring; 16. Extrusion block; 17. Guide hole; 18. Second guide shaft; 19. Second spring; 20. Filter screen. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0023] Reference Figures 1-5 A generator rear end cover that is easy to maintain includes an end cover body 1. Multiple connecting rods 2 are integrally formed on the inner circumference of the end cover body 1. The other end of the multiple connecting rods 2 is integrally formed with a bushing 3. A slide rail 4 is provided on the top of the connecting rod 2. The connecting rod 2 is used to connect the bushing 3 to ensure the stability of the structure and to provide support for the installation of the slide rail 4.
[0024] The slide rail 4 is slidably connected with a first buckle 7 and a second buckle 8. The first buckle 7 and the second buckle 8 are C-shaped structures. A connecting plate 9 is integrally formed between the first buckle 7 and the second buckle 8. A filter screen 20 is snapped between multiple first buckles 7 and multiple second buckles 8. The filter screen 20 is made of 304 stainless steel with a mesh size of 50-80. The filter screen 20 is installed between the first buckle 7 and the second buckle 8 to filter impurities that may enter the generator.
[0025] A first guide shaft 5 is integrally formed between the inner walls of both ends of the slide 4, and a first buckle 7 and a second buckle 8 are slidably sleeved with the first guide shaft 5.
[0026] One end of the first guide shaft 5 is fitted with a first spring 6, one end of the first spring 6 is fixedly connected to the inner wall of one end of the slide rail 4, and the other end of the first spring 6 is fixedly connected to one side of the first buckle 7.
[0027] The first buckle 7 has an integrally formed adjustment shaft 11 on one side. One end of the adjustment shaft 11 is provided with a groove 12. The bushing 3 has multiple through holes 10 around its circumference. The adjustment shaft 11 is slidably inserted into the through holes 10.
[0028] The top of the bushing 3 is provided with an annular groove 14, and an annular pressure ring 15 is slidably connected in the annular groove 14. Multiple extrusion blocks 16 are integrally formed at the bottom of the annular pressure ring 15. The bottom end of the extrusion block 16 is provided with a slope 13. The bottom end of the extrusion block 16 contacts the groove 12. Pressing down on the annular pressure ring 15 causes the extrusion block 16 to move downward. Under the cooperation of the slope 13 and the groove 12, the extrusion adjusting shaft 11 is extruded and moves towards the bushing 3, thereby causing the first buckle 7 to move. Then, under the connection of the connecting plate 9, the second buckle 8 is moved, thereby causing the first buckle 7 and the second buckle 8 to separate from the filter screen 20, so that the filter screen 20 can be disassembled and maintained.
[0029] The bottom inner wall of the annular groove 14 is provided with multiple guide holes 17. The bottom of the annular pressure ring 15 is integrally formed with multiple second guide shafts 18. The second guide shafts 18 are slidably inserted into the guide holes 17 to guide the movement of the annular pressure ring 15. The outer wall of the second guide shaft 18 is sleeved with a second spring 19. The top end of the second spring 19 is fixedly connected to the bottom of the annular pressure ring 15, and the bottom end of the second spring 19 is fixedly connected to the bottom inner wall of the annular groove 14. Under the elastic action of the second spring 19, the annular pressure ring 15 can be easily reset.
[0030] The outer circumference of the end cover body 1 is integrally formed with multiple heat sinks. Multiple heat sinks can effectively increase the heat dissipation area, improve heat dissipation efficiency, and ensure that the generator maintains a good operating temperature during operation.
[0031] The outer circumferential wall of the end cap body 1 is integrally formed with multiple connecting ears, and the connecting ears are provided with mounting holes, so as to facilitate the fixed installation of the end cap body 1.
[0032] The working principle of this embodiment is as follows: When in use, firstly, the filter screen 20 is placed on multiple connecting rods 2. Then, under the elastic action of the first spring 6, the first buckle 7 is engaged with the inner side of the filter screen 20, and the second buckle 8 is engaged with the outer side of the filter screen 20, thereby securely installing the filter screen 20 and filtering out impurities and dust.
[0033] When the filter screen 20 needs to be disassembled, press down on the annular pressure ring 15 to move the squeezing block 16 downward. With the cooperation of the inclined surface 13 and the groove 12, the squeezing adjustment shaft 11 moves towards the bushing 3, thereby moving the first buckle 7. Then, under the connection of the connecting plate 9, the second buckle 8 moves, thereby separating the first buckle 7 and the second buckle 8 from the filter screen 20, so that the filter screen 20 can be disassembled and maintained.
[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A maintenance-friendly generator rear end cover comprising an end cover body (1), characterized in that Multiple connecting rods (2) are fixedly connected to the inner circumference of the end cap body (1). The other ends of the multiple connecting rods (2) are fixedly connected to a bushing (3). A slide rail (4) is provided at the top of the connecting rod (2). A first buckle (7) and a second buckle (8) are slidably connected in the slide rail (4). A connecting plate (9) is fixedly connected between the first buckle (7) and the second buckle (8). A filter screen (20) is snapped between the multiple first buckles (7) and the multiple second buckles (8). A first guide shaft (5) is fixedly connected between the inner walls of the two ends of the slide rail (4). The first buckle (7) and the second buckle (8) are slidably sleeved with the first guide shaft (5). A first spring (6) is sleeved at one end of the first guide shaft (5). One end of the spring (6) is fixedly connected to the inner wall of one end of the slide (4), and the other end of the first spring (6) is fixedly connected to one side of the first buckle (7). An adjusting shaft (11) is fixedly connected to one side of the first buckle (7). A groove (12) is provided at one end of the adjusting shaft (11). Multiple through holes (10) are provided around the circumference of the bushing (3). The adjusting shaft (11) is slidably inserted into the through holes (10). An annular groove (14) is provided at the top of the bushing (3). An annular pressure ring (15) is slidably connected in the annular groove (14). Multiple extrusion blocks (16) are fixedly connected to the bottom of the annular pressure ring (15). An inclined surface (13) is provided at the bottom end of the extrusion block (16). The bottom end of the extrusion block (16) is in contact with the groove (12).
2. A generator back end cover that facilitates maintenance according to claim 1, wherein, The first buckle (7) and the second buckle (8) are C-shaped structures.
3. A generator back end cover that facilitates maintenance according to claim 1, wherein, The bottom inner wall of the annular groove (14) is provided with multiple guide holes (17).
4. A generator back end cover that facilitates maintenance according to claim 1, wherein, The bottom of the annular pressure ring (15) is fixedly connected to a plurality of second guide shafts (18), and the second guide shafts (18) are slidably inserted into the guide hole (17).
5. A generator back end cover for ease of maintenance according to claim 4, wherein, The outer wall of the second guide shaft (18) is fitted with a second spring (19). The top end of the second spring (19) is fixedly connected to the bottom of the annular pressure ring (15), and the bottom end of the second spring (19) is fixedly connected to the bottom inner wall of the annular groove (14).
6. A generator back end cover that facilitates maintenance according to claim 1, wherein, Multiple heat sinks are fixedly connected to the outer circumference of the end cap body (1).
7. A maintenance-friendly generator back end cover according to claim 1, characterized in that The outer circumferential wall of the end cap body (1) is fixedly connected with a plurality of connecting ears, and the connecting ears are provided with mounting holes.