Diesel engine filter assembly
By introducing a fixed ring, slider, and spring buffer mechanism into the diesel engine filter assembly, the impact force is converted into elastic potential energy, solving the problem of diesel engine filter damage due to impact. This achieves the effects of buffering and shock absorption, and makes the working status observable, thereby improving the service life of the filter.
Patent Information
- Application Number
- CN202520724173.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-16
AI Technical Summary
The protective cover of existing diesel engine filters lacks cushioning and shock absorption, making the filter body easily damaged by impact and shortening its service life.
A diesel engine filter assembly was designed, which uses a fixed ring and slider, and a spring buffer mechanism between the protective housing and the filter body. Through the cooperation of the rotating rod and the slider, the impact force is converted into elastic potential energy to achieve buffering and shock absorption. An observation hole and observation window are provided on the protective housing to prevent damage from stones.
It effectively prevents stones from damaging the filter body, improves the service life of the filter, and ensures that the normal working status of the filter can be observed through the design of the observation window and holes.
Smart Images

Figure CN223975194U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diesel engine technology, specifically to a diesel engine filter assembly. Background Technology
[0002] A filter is an accessory that uses filter paper to filter impurities or gases. Generally, it refers to automotive filters, which are engine components. Based on different filtration functions, they are categorized as: oil filters, fuel filters (gasoline filters, diesel filters, oil-water separators, hydraulic filters), air filters, and cabin air filters. Engines typically have three types of filters: air, oil, and fuel, commonly referred to as the "three filters." Adding the cabin air filter, it's commonly called the "four filters." These filters are responsible for filtering the media in the lubrication system, combustion system, engine intake system, and passenger air circulation system, respectively.
[0003] Patent CN210033685U discloses a diesel engine fuel filter protective cover assembly, including a mounting bracket for installing the fuel filter, a protective cover arranged opposite to the mounting bracket, and a support mechanism connected to the mounting bracket and the protective cover. A receiving cavity for accommodating the fuel filter is formed between the protective cover and the mounting bracket, and multiple support mechanisms are provided. This diesel engine fuel filter protective cover assembly, through the cooperation of the mounting bracket and the protective cover, protects the fuel filter from damage caused by impacts from external objects, thereby extending the service life of the fuel filter.
[0004] The aforementioned patent has the following problems:
[0005] The protective cover is simply fixed to the filter body and does not have a cushioning and shock absorption effect. The protective cover will transmit external impacts to the filter body, and the filter body is easily damaged by impact. Therefore, we have launched a diesel engine filter assembly. Utility Model Content
[0006] The purpose of this utility model is to provide a diesel engine filter assembly that not only prevents stones from damaging the outer shell of the filter body, but also achieves a buffering and shock-absorbing effect on stone impacts, thereby improving the service life of the filter body and solving the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A diesel engine filter assembly includes a filter body with a protective housing on its outer side. A fixing ring is provided between the filter body and the protective housing. The fixing ring is fixedly connected to the side wall of the filter body by four fixing blocks. A buffer mechanism for cushioning impacts is provided on the fixing ring between the fixing blocks. The buffer mechanism includes sliders. Two sliders are slidably disposed on the fixing ring between two adjacent fixing blocks. Springs are movably sleeved on the outside of the fixing ring between the sliders and the corresponding fixing blocks.
[0009] As a further embodiment of this utility model, a rotating rod is rotatably provided on the slider via a movable connector, and the other end of the rotating rod is rotatably connected to the inner wall of the protective shell via a movable connector.
[0010] As a further embodiment of this invention, the spring is always in a compressed state.
[0011] As a further embodiment of this invention, the protective housing is provided with a plurality of observation holes evenly distributed on its exterior.
[0012] As a further embodiment of this invention, the plurality of observation windows are arranged at positions corresponding to the plurality of fixed blocks.
[0013] As a further embodiment of this invention, the movable connector is configured as a pin.
[0014] As a further embodiment of this utility model, an observation window is fixedly provided inside the observation hole.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This diesel engine filter assembly comprises a filter body, a protective housing, an inspection window, a slider, an inspection hole, a spring, a fixed block, a rotating rod, a movable connector, and a fixed ring. When an external stone impacts the protective housing or the inspection window, the protective housing drives the slider to slide on the fixed ring via the rotating rod. The slider compresses the spring, and the impact force is converted into the elastic potential energy of the spring through the rotating rod and the slider, thus buffering the filter body. After buffering, it automatically resets. The protective housing has multiple inspection holes evenly distributed on its exterior for easy observation of the filter body's working status. The multiple inspection windows are positioned corresponding to the positions of multiple fixed blocks, avoiding the movable connector. The inspection windows are fixedly installed inside the inspection holes, providing protection to prevent stones from entering the protective housing through the inspection holes and damaging the filter body. This not only prevents stones from damaging the filter body's outer shell but also achieves a buffering and shock-absorbing effect against stone impacts, improving the service life of the filter body. Attached Figure Description
[0017] Figure 1This is a schematic diagram of the diesel engine filter assembly.
[0018] Figure 2 This is a schematic diagram of the bottom structure of the diesel engine filter assembly.
[0019] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle.
[0020] In the diagram: 1. Filter body; 2. Protective housing; 3. Observation window; 4. Slider; 5. Observation hole; 6. Spring; 7. Fixing block; 8. Rotating rod; 9. Movable connecting piece; 10. Fixing ring. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1 to 3 This utility model provides a technical solution:
[0023] The diesel engine filter assembly includes a filter body 1, a protective housing 2 on the outside of the filter body 1, a fixing ring 10 between the filter body 1 and the protective housing 2, and four fixing blocks 7 fixedly connected to the side wall of the filter body 1 on the fixing ring 10. A buffer mechanism for cushioning impacts is provided on the fixing ring 10 between the fixing blocks 7. The buffer mechanism includes a slider 4, two sliders 4 are slidably disposed on the fixing ring 10 between two adjacent fixing blocks 7, and springs 6 are movably sleeved on the outside of the fixing ring 10 between the sliders 4 and the corresponding fixing blocks 7.
[0024] Reference Figure 2 and Figure 3 A rotating rod 8 is rotatably mounted on the slider 4 via a movable connector 9, and the other end of the rotating rod 8 is rotatably connected to the inner wall of the protective housing 2 via the movable connector 9.
[0025] A rotating rod 8 is rotatably mounted on the slider 4 via a movable connector 9. The other end of the rotating rod 8 is rotatably connected to the inner wall of the protective housing 2 via the movable connector 9. The angle of the rotating rod 8 is never parallel to any diameter of the fixed ring 10. The movable connector 9 is set as a pin.
[0026] Reference Figure 1 and Figure 2Multiple observation holes 5 are evenly provided on the outside of the protective housing 2 to facilitate observation of the working status of the filter body.
[0027] Reference Figure 1 and Figure 2 Multiple observation windows 3 are positioned corresponding to the positions of multiple fixed blocks 7, avoiding the movable connector 9.
[0028] Reference Figure 1 and Figure 2 An observation window 3 is fixedly installed inside the observation hole 5. The observation window 3 can provide protection for the observation hole 5, preventing stones from entering the protective housing 2 through the observation hole 5 and damaging the filter body 1.
[0029] In use, when an external stone impacts the protective housing 2 or the observation window 3, the protective housing 2 drives the slider 4 to slide on the fixed ring 10 via the rotating rod 8. The slider 4 compresses the spring 6, and the impact force is converted into the elastic potential energy of the spring 6 through the rotating rod 8 and the slider 4, thereby buffering the filter body 1. After buffering, it automatically resets. The protective housing 2 is evenly provided with multiple observation holes 5 for easy observation of the working status of the filter body. Multiple observation windows 3 are set at positions corresponding to multiple fixed blocks 7, avoiding the movable connecting parts 9. The observation window 3 is fixedly installed inside the observation hole 5, which can provide protection for the observation hole 5, preventing stones from entering the protective housing 2 through the observation hole 5 and damaging the filter body 1. It can not only prevent stones from damaging the outer shell of the filter body 1, but also achieve a buffering and shock absorption effect on stone impact, thereby improving the service life of the filter body 1.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. Diesel filter assembly comprising a filter body (1), characterized in that: The filter body (1) is provided with a protective shell (2) outside, a fixing ring (10) is arranged between the filter body (1) and the protective shell (2), the fixing ring (10) is fixedly connected with the side wall of the filter body (1) through four fixing blocks (7), a buffer mechanism for providing buffer for the impact received is arranged between the fixing blocks (7) on the fixing ring (10), the buffer mechanism comprises sliding blocks (4), two sliding blocks (4) are slidingly arranged between adjacent two fixing blocks (7) on the fixing ring (10), and springs (6) are movably arranged between the sliding blocks (4) and the corresponding fixing blocks (7) outside the fixing ring (10).
2. The diesel filter assembly of claim 1, wherein: A rotating rod (8) is rotatably arranged on the sliding block (4) through a movable connecting piece (9), and the other end of the rotating rod (8) is rotatably connected with the inner side wall of the protective shell (2) through the movable connecting piece (9).
3. The diesel filter assembly of claim 2, wherein: The spring (6) is always in a compressed state.
4. The diesel filter assembly of claim 3, wherein: Multiple observation holes (5) are uniformly arranged outside the protective shell (2).
5. The diesel filter assembly of claim 4, wherein: The movable connecting piece (9) is a pin shaft.
6. The diesel filter assembly of claim 5, wherein: An observation window (3) is fixedly arranged in the observation hole (5), and multiple observation windows (3) are arranged at positions corresponding to the multiple fixing blocks (7).
Citation Information
Patent Citations
Fuel filter protective cover assembly for diesel engine
CN210033685U