Diesel oil filter with quick disassembly structure

Abstract

The diesel filter comprises a filter body, an end cover plate and a quick disassembly assembly, the quick disassembly assembly comprises a lifting ring, a padlock groove, a padlock assembly and a limiting assembly, the padlock groove is divided into an outer groove, a top groove and a bottom groove, and the padlock assembly comprises a pressing part and a telescopic part; the filter body and the end cover plate are matched to achieve rapid separation / closing of the filter body and the end cover plate, the overturning plate, the shifting rod and other structures are adopted to improve operation convenience, the sealing ring, the protruding edge and the like are additionally arranged to enhance the sealing performance, and the limiting assembly ensures stable operation of the lifting ring. Multiple sealing defense lines are formed, diesel oil leakage is effectively prevented, and the overall safety and reliability of the filter are improved.

Description

Technical Field

[0001] The invention relates to a filter device of a diesel engine, in particular to a diesel filter with a quick disassembly structure. Background Art

[0002] Diesel engines require meticulous fuel filtration to ensure proper operation and longevity. Traditional diesel filters typically use threaded or bolted connections to connect the filter body to the end cap. This connection requires tools for disassembly and installation when replacing the filter element, making it cumbersome and time-consuming.

[0003] For example, Chinese patent document CN201821536897.2 discloses a "diesel filter quick-release structure." This solution achieves rapid removal and installation of the filter by setting a snap-fit structure between the filter body and the end cover. However, the snap-fit structure of this prior art is prone to loosening after long-term use, resulting in a decrease in sealing performance. In addition, the disassembly process still requires a large operating force, resulting in a poor user experience.

[0004] In addition, the sealing structure of existing diesel filters mostly uses flat seals or O-ring seals, which are prone to leakage under high-pressure fuel environments, affecting the filtering effect of the filter and the safe operation of the engine.

[0005] Therefore, there is an urgent need for a diesel filter quick-release structure with a simple structure, convenient operation and reliable sealing. Summary of the Invention

[0006] The present invention aims to solve one of the technical problems existing in the prior art.

[0007] The present application provides a diesel filter with a quick-disassembly structure, a filter body, an end cover plate and a quick-disassembly assembly, the quick-disassembly assembly including a lifting ring, a plurality of latch grooves, a plurality of latch assemblies and a limiting assembly, the lifting ring being liftable and sleeved on the outside of the filter body, the limiting assembly being used to limit the lifting range of the lifting ring, the latch grooves being spaced apart on the circumferential side of the lifting ring, the latch assemblies being movably mounted on the end cover plate, and being used to cooperate with the latch grooves to control the separation / closing of the lifting ring and the top of the filter body from the end cover plate.

[0008] The locking groove includes an outer groove, a top groove and a bottom groove. The outer groove is opened on the outer peripheral wall of the lifting ring. The top surface of the top groove is inclined and is arranged at the top end of the inner side surface of the outer groove. The bottom groove is opened on the bottom surface of the lifting ring and is connected with the bottom end of the inner side surface of the outer groove. The locking assembly includes a pressing part for pushing the top groove to rise and a telescopic part inserted into the bottom groove.

[0009] The pressing part includes a turning plate which is rotatably mounted on the end cover plate through a twist shaft at the top, a floating hole is provided at the bottom of the turning plate, and a top block is provided on the inner wall; The telescopic part includes a plug-in block and a spring. The lower end of the plug-in block can be inserted into the bottom groove, and a floating rod is fixed on the top. The upper end of the floating rod can be slidably inserted into the floating hole. A spring is installed in the floating hole. The spring has a preload force in the initial state.

[0010] The lower end of the top block is fixed on the inner side of the turnover plate, and the upper end is semicircular and extends obliquely upward.

[0011] A chute communicating with the middle of the floating hole is provided on the outer side of the flip plate, a shift rod is slidably installed in the chute, the inner end of the shift rod is fixedly connected to the upper end of the floating rod, and the outer end extends out of the chute.

[0012] The floating holes are a pair and are symmetrically arranged at the bottom of the flip plate. The floating rods, springs, slide grooves and shift rods are a pair and correspond to the floating holes one by one. The outer ends of the pair of floating rods are connected to each other through shift bars.

[0013] A convex ring is fixed on the bottom surface of the end cover plate, a sealing ring is sleeved on the outer ring of the convex ring, a pressing slope is provided on the top of the lifting ring, and the outer side wall of the sealing ring is inclined and fits the pressing slope.

[0014] The inner ring of the sealing ring is provided with a V-shaped groove, and the outer ring of the convex ring is fixed with a convex ridge for expanding the V-shaped groove.

[0015] The limiting assembly includes a limiting groove opened on the lifting ring wall and a limiting block fixed on the outer wall of the filter body. The limiting block is slidably installed in the limiting groove. The height of the limiting groove is greater than the thickness of the limiting block. The limiting components are provided in plurality and are arranged at intervals on the peripheral wall of the lifting ring.

[0016] The beneficial effects of the present invention are as follows: The design of the quick-release assembly allows for quick removal and installation of the filter body and end cover without the use of complex tools, greatly shortening maintenance time and improving work efficiency. Through the cooperation between the pressing bevel and the sealing ring, as well as the interaction between the ridge and the V-shaped groove, multiple sealing lines are formed. The unique sealing structure design effectively prevents diesel leakage, ensuring the normal operation of the filter and the safety of the working environment. The setting of the limiting assembly and the reasonable coordination of various components ensure the stability and reliability of the lifting ring during the lifting process, avoid structural damage caused by loose components or excessive movement, and extend the service life of the filter. The optimized design of the locking assembly in each embodiment, such as the shape design of the top block and the symmetrical structure design, reduces the operational resistance and makes the disassembly and installation process easier and more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of a diesel filter in an embodiment of the present application; Figure 2This is a three-dimensional diagram of a diesel filter in an embodiment of the present application (partially cut away); Figure 3 A three-dimensional diagram of a quick-release assembly in an embodiment of the present application (partially cut away); Figure 4 This is a three-dimensional diagram of the lifting ring in the embodiment of this application; Figure 5 This is a three-dimensional diagram of the buckle lock assembly in the embodiment of the present application; Figure 6 This is a partial cross-sectional view of the quick-release assembly in the embodiment of the present application.

[0018] Reference numerals 1-Filter body, 2-End cover, 3-Quick release assembly, 31-Lifting ring, 32-Lock groove, 321-Outer groove, 322-Top groove, 323-Bottom groove, 33-Lock assembly, 331-Pressing part, 3311-Flip plate, 3312-Floating hole, 3313-Top block, 332-Telescopic part, 3321-Plug-in block, 3322-Spring, 3323-Floating rod, 34-Restriction assembly, 341-Restriction groove, 342-Restriction block, 4-Slide groove, 5-Dial rod, 6-Dial bar, 7-Convex ring, 8-Sealing ring, 9-Compression slope, 10-V-shaped groove, 11-Range. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0020] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0021] The diesel filter provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0022] Example 1: An embodiment of the present application provides a diesel filter with a quick-disassembly structure, comprising a filter body 1, an end cover plate 2 and a quick-disassembly assembly 3. The quick-disassembly assembly 3 includes a lifting ring 31, a plurality of latching grooves 32, a plurality of latching assemblies 33 and a limiting assembly 34. The lifting ring 31 can be lifted and lowered and sleeved on the outside of the filter body 1. The limiting assembly 34 is used to limit the lifting range of the lifting ring 31. The latching grooves 32 are arranged at intervals around the lifting ring 31. The latching assemblies 33 are movably mounted on the end cover plate 2 and are used to cooperate with the latching grooves 32 to control the lifting ring 31 and the top of the filter body 1 to separate / close from the end cover plate 2.

[0023] In this embodiment of the present application, the locking groove 32 includes an outer groove 321, a top groove 322 and a bottom groove 323. The outer groove 321 is opened on the outer peripheral wall of the lifting ring 31, the top surface of the top groove 322 is inclined and is arranged at the top of the inner side surface of the outer groove 321, and the bottom groove 323 is opened on the bottom surface of the lifting ring 31 and is connected to the bottom end of the inner side surface of the outer groove 321. The locking assembly 33 includes a pressing part 331 for pushing the top groove 322 to rise and a telescopic part 332 inserted into the bottom groove 323.

[0024] like Figures 1 to 6 When the locking cam 331 is in the unlocked position, the locking cam 331 is in the unlocked position, and the locking cam 332 is in the unlocked position, so that the locking cam 332 can be unlocked.

[0025] Example 2: The difference from Example 1 is that, in addition to the structural features of the previous embodiment, the pressing portion 331 includes a flip plate 3311 whose top end is rotatably mounted on the end cover plate 2 via a hinge shaft, a floating hole 3312 is defined at the bottom of the flip plate 3311, and a top block 3313 is provided on the inner wall. The telescopic part 332 includes a plug-in block 3321 and a spring 3322. The lower end of the plug-in block 3321 can be inserted into the bottom groove 323, and a floating rod 3323 is fixed to the top. The upper end of the floating rod 3323 can be slidably inserted into the floating hole 3312. A spring 3322 is installed in the floating hole 3312. The spring 3322 has a pre-tightening force in the initial state.

[0026] In this embodiment of the present application, the lower end of the top block 3313 is fixed to the inner side of the flip plate 3311, and the upper end is semicircular and extends upwardly.

[0027] like Figures 2 to 6 As shown, due to the adoption of the above-mentioned structure, when performing the disassembly operation, the plug-in block 3321 is toggled upward, and the floating rod 3323 slides in the floating hole 3312 until the plug-in block 3321 rises to the overlapping section of the bottom groove 323 and the outer groove 321, and then the flip plate 3311 is rotated around the twist shaft to disengage the top block 3313 from the top groove 322 and the plug-in block 3321 from the bottom groove 323, thereby releasing the fixation of the end cover plate 2 and realizing the separation of the top of the filter body 1 from the end cover plate 2. When installing, firstly push the plug-in block 3321 upward to bring the plug-in block 3321 and the flip plate 3311 close to each other, and then rotate the flip block around the twist shaft. When the filter housing 1 is in the process of being rotated, the top block 3313 is inserted into the top groove 322, and the plug-in block 3321 enters the bottom groove 323, pushing the lifting ring 31 to rise and pulling the end cover plate 2 to fall until the bottom surface of the end cover plate 2 is tightly pressed against the top surface of the filter body 1. After loosening the plug-in block 3321, under the action of the spring 3322, the lower end of the plug-in block 3321 passes through the lower end of the bottom groove 323, completing the locking, and the flip plate 3311 cannot be flipped outward, ensuring that the top block 3313 and the top groove 322 are firmly matched. The semicircular design of the upper end of the top block 3313 and its upward extension ensures the smooth sliding of the top block 3313 in the top groove 322 and reduces the operating resistance.

[0028] Example 3: The difference from Example 2 is that, in this embodiment, in addition to the structural features of the aforementioned embodiment, a slide groove 4 connecting to the middle part of the floating hole 3312 is opened on the outside of the flip plate 3311, and a shift rod 5 is slidably installed in the slide groove 4. The inner end of the shift rod 5 is fixedly connected to the upper end of the floating rod 3323, and the outer end extends out of the slide groove 4.

[0029] In this embodiment of the present application, the floating holes 3312 are a pair and are symmetrically arranged at the bottom of the flip plate 3311. The floating rod 3323, the spring 3322, the slide groove 4 and the shift rod 5 are all a pair and correspond one-to-one to each floating hole 3312. The outer ends of the pair of floating rods 3323 are connected to each other through the shift bar 6.

[0030] like Figures 5 and 6 As shown, due to the adoption of the above-mentioned structure, when disassembling, the push bar 6 is pushed upward to drive the push rods 5 on both sides to slide synchronously in the slide groove 4, and the push rod 5 drives the floating rod 3323 to slide in the floating hole 3312, so that the plug-in block 3321 rises to the overlapping section of the bottom groove 323 and the outer groove 321, and then the flip plate 3311 is rotated around the hinge shaft, the top block 3313 is disengaged from the top groove 322, and the plug-in block 3321 is disengaged from the bottom groove 323, thereby releasing the fixation of the end cover plate 2, and realizing the separation of the top of the filter body 1 from the end cover plate 2.

[0031] When installing, first push the push bar 6 outward, and the push rods 5 on both sides work together to make the plug-in block 3321 and the flip plate 3311 approach each other, then make the flip plate 3311 rotate around the twist shaft, the top block 3313 is inserted into the top groove 322, the plug-in block 3321 enters the bottom groove 323, pushing the lifting ring 31 to rise and pulling the end cover plate 2 down until the bottom surface of the end cover plate 2 is tightly against the top surface of the filter body 1. After loosening the push bar 6, under the action of the spring 3322, the lower end of the plug-in block 3321 passes through the lower end of the bottom groove 323, completing the locking. At this time, the flip plate 3311 cannot be flipped outward, ensuring that the top block 3313 and the top groove 322 are firmly matched.

[0032] The symmetrically arranged floating holes 3312, floating rods 3323 and other components ensure that the force on both sides of the flip plate 3311 is evenly distributed. When the dial bar 6 is operated, the lifting ring 31 moves smoothly, avoiding jamming due to uneven force, and improving the smoothness and reliability of the operation.

[0033] Example 4: The difference from Example 3 is that, in this embodiment, in addition to the structural features of the aforementioned embodiments, a convex ring 7 is fixedly provided on the bottom surface of the end cover plate 2, a sealing ring 8 is provided on the outer ring of the convex ring 7, a clamping slope 9 is provided on the top of the lifting ring 31, and the outer side wall of the sealing ring 8 is inclined and fits with the clamping slope 9.

[0034] In this embodiment of the present application, the inclination angles of the pressing slope 9 and the outer side wall of the sealing ring 8 are the same, both being 30°-60°.

[0035] In this embodiment of the present application, the inner ring of the sealing ring 8 is provided with a V-shaped groove 10 , and the outer ring of the convex ring 7 is fixed with a ridge 11 for expanding the V-shaped groove 10 .

[0036] The width of the V-shaped groove 10 is greater than the width of the groove bottom, and the cross-section of the ridge 11 is semicircular.

[0037] like Figure 6 As shown, due to the adoption of the above-mentioned structure, when disassembling, first push the push bar 6 outward to drive the push rod 5, so that the plug-in block 3321 rises to the overlapping section of the bottom groove 323 and the outer groove 321, and the flip plate 3311 rotates around the twist shaft, the top block 3313 disengages from the top groove 322, and the plug-in block 3321 disengages from the bottom groove 323, thereby releasing the fixation of the end cover plate 2. At this time, as the top of the filter body 1 separates from the end cover plate 2, the pressing slope 9 and the sealing ring 8 are disengaged from the extrusion, and the ridge 11 withdraws from the V-shaped groove 10.

[0038] During installation, push the push bar 6 outward to bring the plug-in block 3321 and the flip plate 3311 closer together, and the flip plate 3311 rotates to insert the top block 3313 into the top groove 322 and the plug-in block 3321 into the bottom groove 323, pushing the lifting ring 31 up and pulling the end cover plate 2 down. During the rising process of the lifting ring 31, the clamping slope 9 on the top of the lifting ring 31 fits against the outer wall of the sealing ring 8. As it rises further, the clamping slope 9 gradually presses the sealing ring 8. At the same time, the ridge 11 of the outer ring of the convex ring 7 expands the V-shaped groove 10 of the inner ring of the sealing ring 8, causing the inner ring of the sealing ring 8 to expand to ensure the seal between the filter body 1 and the end cover plate 2.

[0039] When the bottom surface of the end cover plate 2 is pressed against the top surface of the filter body 1, the strip 6 is released, and the lower end of the plug-in block 3321 passes through the lower end of the bottom groove 323 to complete the locking. At this time, the pressing slope 9 is tightly squeezed with the sealing ring 8, and the ridge 11 cooperates with the V-shaped groove 10 to form multiple sealing lines, which effectively prevent diesel leakage. The sealing ring 8 can return to its original shape under the action of elasticity, ensuring the reusability of the sealing structure.

[0040] Example 5: The difference from Example 4 is that, in addition to the structural features of the aforementioned embodiment, the limiting assembly 34 includes a limiting groove 341 provided on the peripheral wall of the lifting ring 31 and a limiting block 342 fixed on the outer wall of the filter body 1. The limiting block 342 is slidably mounted in the limiting groove 341. The height of the limiting groove 341 is greater than the thickness of the limiting block 342. In this embodiment of the present application, there are a plurality of limiting components 34 that are spaced apart and arranged on the peripheral wall of the lifting ring 31 .

[0041] like Figure 1 、 Figure 2 and Figure 4 As shown, due to the adoption of the above structure, the limiting assembly 34 plays a key role in the entire installation and removal operation process.

[0042] During disassembly, the push bar 6 is pushed outward to drive the push rod 5, so that the plug-in block 3321 rises to the overlapping section of the bottom groove 323 and the outer groove 321, and the flip plate 3311 rotates around the hinge shaft to release the fixation of the end cover 2. During this process, the limiting block 342 on the outer wall of the filter body 1 always slides in the limiting groove 341 of the peripheral wall of the lifting ring 31. The height of the limiting groove 341 is greater than the thickness of the limiting block 342, ensuring that the lifting ring 31 can be fixed when it rises to the highest position within the set range, and then the end cover 2 can be effectively pulled downward.

[0043] During installation, push the selector bar 6 upwards to bring the plug-in block 3321 closer to the flip plate 3311, and the flip plate 3311 rotates to insert the top block 3313 into the top groove 322 and the plug-in block 3321 into the bottom groove 323, pushing the lifting ring 31 up and pulling the end cover plate 2 down. Multiple spaced-apart limiting components 34 limit the lifting ring 31 from different positions to ensure that the lifting ring 31 descends smoothly until the bottom surface of the end cover plate 2 is tightly against the top surface of the filter body 1, and then release the selector bar 6 to complete the locking.

[0044] The existence of the limiting component 34 ensures that when the dial bar 6 is moved to make the plug-in block 3321 and the flip plate 3311 cooperate with each other to realize the installation or removal of the filter body 1 and the end cover plate 2, the movement of the lifting ring 31 is stable and reliable, effectively improving the overall safety and stability of the diesel filter quick disassembly structure.

[0045] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0046] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A diesel filter with a quick-release structure, comprising a filter body, an end cover plate and a quick-release assembly, characterized in that: The quick-release assembly includes a lifting ring, a plurality of locking grooves, a plurality of locking assemblies and a limiting assembly. The lifting ring can be lifted and lowered and is mounted on the outside of the filter body. The limiting assembly is used to limit the lifting range of the lifting ring. The locking grooves are arranged at intervals on the circumference of the lifting ring. The locking assemblies are movably installed on the end cover plate and are used to cooperate with the locking grooves to control the separation / closing of the lifting ring and the top of the filter body and the end cover plate.

2. The diesel filter with a quick-disassembly structure according to claim 1, characterized in that: The locking groove includes an outer groove, a top groove and a bottom groove. The outer groove is opened on the outer peripheral wall of the lifting ring. The top surface of the top groove is inclined and is arranged at the top end of the inner side surface of the outer groove. The bottom groove is opened on the bottom surface of the lifting ring and is connected to the bottom end of the inner side surface of the outer groove. The locking assembly includes a pressing part for pushing the top groove to rise and a telescopic part inserted into the bottom groove.

3. The diesel filter with a quick-disassembly structure according to claim 2, characterized in that: The pressing part includes a flip plate with a top end rotatably mounted on the end cover plate via a twist shaft, a floating hole is provided at the bottom of the flip plate, and a top block is provided on the inner side wall; The telescopic part includes a plug-in block and a spring. The lower end of the plug-in block can be inserted into the bottom groove, and a floating rod is fixed on the top. The upper end of the floating rod can be slidably inserted into the floating hole. A spring is installed in the floating hole. The spring has a preload force in the initial state.

4. The diesel filter with a quick-disassembly structure according to claim 3, characterized in that: The lower end of the top block is fixed on the inner side of the flip plate, and the upper end is semicircular and extends upwardly in an inclined manner.

5. The diesel filter with a quick-disassembly structure according to claim 3, characterized in that: A sliding groove communicating with the middle of the floating hole is provided on the outer side of the flip plate, a shift rod is slidably installed in the sliding groove, the inner end of the shift rod is fixedly connected to the upper end of the floating rod, and the outer end extends out of the sliding groove.

6. The diesel filter with a quick-disassembly structure according to claim 5, characterized in that: The floating holes are a pair and are symmetrically arranged at the bottom of the flip plate. The floating rods, springs, slide grooves and shift rods are a pair and correspond one-to-one to each floating hole. The outer ends of the pair of floating rods are connected to each other through a shift bar.

7. The diesel filter with a quick-disassembly structure according to claim 1, characterized in that: A convex ring is fixedly provided on the bottom surface of the end cover plate, a sealing ring is provided on the outer ring of the convex ring, a pressing inclined surface is provided on the top of the lifting ring, and the outer side wall of the sealing ring is inclined and fits with the pressing inclined surface.

8. The diesel filter with a quick-disassembly structure according to claim 7, characterized in that: The inner ring of the sealing ring is provided with a V-shaped groove, and the outer ring of the convex ring is fixed with a convex ridge for expanding the V-shaped groove.

9. The diesel filter with a quick-disassembly structure according to claim 1, characterized in that: The limiting assembly includes a limiting groove opened on the lifting circumferential wall and a limiting block fixed on the outer wall of the filter body. The limiting block is slidably installed in the limiting groove, and the height of the limiting groove is greater than the thickness of the limiting block.

10. The diesel filter with a quick-disassembly structure according to claim 9, characterized in that: The limiting components are provided in plurality and are arranged at intervals on the peripheral wall of the lifting ring.

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