Rotary diesel filter

Abstract

The utility model discloses a spin-on type diesel oil filter which comprises a filter cylinder and a mounting frame, a butt joint assembly is arranged between the mounting frame and the filter cylinder, a guide groove is formed in the mounting frame, and a limiting assembly is movably installed in the guide groove. The butt-joint assembly comprises a butt-joint cylinder and a butt-joint column, and the butt-joint cylinder and the butt-joint column are fixedly installed at the bottom of the installation frame and the top of the filter cylinder correspondingly. According to the rotary type diesel filter, an operation lug plate is pushed upwards, so that a sliding plate and an inserting column move upwards along an operation groove and a fixing hole to extrude a supporting spring, a butt joint column and a clamping block at the top of a filter barrel are clamped into a clamping groove, the filter barrel is rotated till the clamping block is clamped into the inner side of the clamping groove, and after the operation lug plate is released, the supporting spring pushes the sliding plate to move downwards; therefore, limiting and fixing are achieved, the structure is simple, and the fixed mounting and dismounting process of the filter barrel is simplified.

Description

Technical Field

[0001] This utility model relates to the field of diesel filter technology, specifically a spin-on diesel filter. Background Technology

[0002] A spin-on filter is a purification and filtration device that can remove solid impurities and water from diesel fuel. Its function is to remove impurities and water from diesel fuel to prevent clogging of the diesel fuel system, so that the diesel fuel delivered to the engine is clean and uncontaminated. This can effectively reduce abnormal engine wear, ensure stable engine operation, and extend its service life. It is divided into replaceable and spin-on types. Existing filters include a base and a filter cartridge. The usual installation method is a threaded connection. The filter cartridge and the base are fixed by the engagement of threaded holes and multiple turns of external threads.

[0003] The existing patent publication number CN216477631U discloses a spin-on diesel filter. By starting a dual-shaft motor with a control switch, the second rotating shaft can drive the gear to rotate under the cooperation of the first gear and the second bevel gear. Under the cooperation of the gear and rack, the movable plate can drive the clamping plate side block to engage inside the slot, thereby achieving the purpose of fixing the filter, which makes it convenient for the staff to fix the filter.

[0004] The aforementioned patent uses a dual-axis motor in conjunction with multiple rotating shafts and bevel gears to drive the gear rack and pinion movement, and uses a locking block to engage with the slot outside the limiting block for fixation. Its structure is relatively complex and requires motor drive, making it inconvenient to use and with high component costs. Furthermore, the filter body is not securely fixed by simply engaging the locking block with the slot. Utility Model Content

[0005] The purpose of this utility model is to provide a spin-on diesel filter to solve the problems mentioned in the background art, which involve a dual-shaft motor with multiple rotating shafts and bevel gears driving the gear rack to move and use a locking block to lock into the slot outside the limiting block for fixation. This structure is relatively complex and requires motor drive, making it inconvenient to use and costing high parts. Furthermore, the filter body is not securely fixed by simply locking the locking block into the slot.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a spin-on diesel filter, comprising a filter cylinder and a mounting frame, wherein a docking assembly is provided between the mounting frame and the filter cylinder, the mounting frame has a guide groove inside, and a limiting assembly is movably installed inside the guide groove; the docking assembly includes a docking cylinder and a docking post, the docking cylinder and the docking post being fixedly installed at the bottom of the mounting frame and the top of the filter cylinder, respectively, a ring-shaped locking block is fixedly connected to the outside of the docking post, a locking groove is provided at the bottom of the docking cylinder, a limiting plate corresponding to the locking block is fixedly installed on the inside of the locking groove, an operating groove is provided at the top of the docking cylinder, and fixing holes are provided inside both the docking cylinder and the locking block, a sliding plate is movably engaged inside the operating groove, a pin corresponding to the fixing hole is fixedly connected to the bottom of the sliding plate, and a support spring is movably engaged at the top of the fixing hole.

[0007] Preferably, the limiting plate has an "L" shaped cross-section, the number of limiting plates and the number of card blocks are equal and correspond one-to-one, and the spacing between the limiting plates is adapted to the size of the card blocks.

[0008] Preferably, the position of the insertion post corresponds to the fixing hole, and the insertion post is movably engaged inside the fixing hole.

[0009] Preferably, an operating ear plate is fixedly connected to the outer side of the sliding plate, and an opening corresponding to the operating ear plate is provided on the side of the docking cylinder.

[0010] Preferably, the limiting component includes a bidirectional lead screw, which is movably installed inside the mounting frame and passes through the interior of the guide groove. The external thread of the bidirectional lead screw is fitted with sliders arranged symmetrically at the front and rear. The bottom of each slider is fixedly connected to a vertical plate. A locking head is provided on the lower inner side of the vertical plate. An operating head is provided at the end of the slider. A groove corresponding to the locking head is opened on the outer side of the filter cylinder, and the locking head is movably engaged inside the groove.

[0011] Preferably, the vertical plate is provided with reinforcing ribs on both its inner and outer sides.

[0012] Preferably, an oil drain port and an oil inlet are respectively provided on the left and right sides of the filter cylinder, and a drain valve is fixedly installed at the bottom of the filter cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By pushing the operating ear plate upward, the slide plate and the insert post move upward along the operating groove and the fixing hole to squeeze the support spring, and the docking post and the locking block at the top of the filter cylinder are inserted into the slot. Rotate the filter cylinder until the locking block is inserted into the inside of the slot. After releasing the operating ear plate, the support spring pushes the slide plate downward, and the insert post is inserted into the fixing hole in the locking block to achieve limit fixation. The structure is simple and simplifies the fixing, installation and disassembly process of the filter cylinder.

[0015] 2. After the filter cylinder is connected, rotate the operating head to rotate the double-sided lead screw in the mounting bracket. The rotation of the double-sided lead screw causes the sliders, which are symmetrically positioned in the guide groove, to move in opposite directions. The movement of the sliders in turn drives the vertical plate below them to move, causing the clamps on the vertical plate to move inward and engage with the grooves on the outside of the filter cylinder for positioning. This, in conjunction with the connection assembly, ensures the stable fixation of the filter cylinder and enhances the fixing effect. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a structural diagram of the filter cylinder of this utility model in its disassembled state;

[0018] Figure 3 This is a schematic diagram of the docking assembly of this utility model;

[0019] Figure 4 This is an exploded three-dimensional structural diagram of the sliding plate and insert of this utility model;

[0020] Figure 5 This is an exploded three-dimensional structural diagram of the limiting component of this utility model.

[0021] In the diagram: 1. Filter housing; 2. Mounting bracket; 3. Connecting assembly; 31. Connecting cylinder; 32. Connecting post; 33. Locking block; 34. Locking groove; 35. Limiting plate; 36. Operating groove; 37. Fixing hole; 38. Slide plate; 39. Insert post; 310. Support spring; 311. Operating ear plate; 4. Guide groove; 5. Limiting assembly; 51. Two-way lead screw; 52. Slider; 53. Vertical plate; 54. Locking head; 55. Operating head; 56. Reinforcing rib; 6. Oil inlet; 7. Oil outlet; 8. Drain valve; 9. Groove. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This utility model provides a technical solution: a spin-on diesel filter, including a filter cylinder 1 and a mounting frame 2. A docking assembly 3 is provided between the mounting frame 2 and the filter cylinder 1. A guide groove 4 is provided inside the mounting frame 2, and a limiting assembly 5 is movably installed inside the guide groove 4. The docking assembly 3 includes a docking cylinder 31 and a docking post 32. The docking cylinder 31 and the docking post 32 are respectively fixedly installed at the bottom of the mounting frame 2 and the top of the filter cylinder 1. A ring-shaped locking block 33 is fixedly connected to the outside of the docking post 32. A locking groove 34 is provided at the bottom of the docking cylinder 31. A limiting plate 35 corresponding to the locking block 33 is fixedly installed on the inside of the locking groove 34. An operating groove 36 is provided at the top inside the docking cylinder 31. A fixed mounting plate 35 is provided inside both the docking cylinder 31 and the locking block 33. A sliding plate 38 is movably engaged inside the fixed hole 37 and the operating groove 36. The bottom of the sliding plate 38 is fixedly connected to the insertion post 39 corresponding to the fixed hole 37. The top of the fixed hole 37 is movably engaged with the support spring 310. By pushing the operating ear plate 311 upward, the sliding plate 38 and the insertion post 39 move upward along the operating groove 36 and the fixed hole 37, squeezing the support spring 310. This causes the docking post 32 and the locking block 33 at the top of the filter cylinder 1 to be engaged in the locking groove 34. After rotating the filter cylinder 1 until the locking block 33 is engaged in the inner side of the locking groove 34, the operating ear plate 311 is released. The support spring 310 pushes the sliding plate 38 downward, and the insertion post 39 is then engaged in the fixed hole 37 in the locking block 33, thus achieving limited fixation. The structure is simple and simplifies the fixing, installation, and disassembly process of the filter cylinder 1.

[0024] The limiting plate 35 has an "L" shaped cross-section. The number of limiting plates 35 and the number of locking blocks 33 are equal and correspond one-to-one. The spacing of the limiting plates 35 is adapted to the size of the locking blocks 33. The "L" shaped design of the limiting plates 35 can effectively enhance the structural stability of the inner side of the slot 34, and at the same time provide precise guidance for the locking blocks 33. During the installation process, the locking blocks 33 slide along the edge of the limiting plates 35 until they are fully embedded in the inner side, ensuring a tight connection between the docking cylinder 31 and the filter cylinder 1. The spacing of the limiting plates 35 is calculated to ensure that the locking blocks 33 can enter smoothly and avoid loosening caused by excessive gaps, thereby further improving the reliability and durability of the overall structure.

[0025] The position of the insertion post 39 corresponds to the fixing hole 37, and the insertion post 39 is movably engaged inside the fixing hole 37.

[0026] The outer diameter of the insertion post 39 matches the inner diameter of the fixing hole 37, ensuring a good fit during the snap-fit ​​process. The depth of the fixing hole 37 ensures a stable limiting effect after the insertion post 39 is fully inserted, without affecting the overall structural compactness due to excessive depth. The movable snap-fit ​​of the insertion post 39 can effectively accommodate certain assembly errors, improving the convenience and success rate of installation.

[0027] An operating ear plate 311 is fixedly connected to the outer side of the slide plate 38. An opening corresponding to the operating ear plate 311 is provided on the side of the docking cylinder 31. The operating ear plate 311 allows the user to apply force manually or with tools, thereby enabling the slide plate 38 to move. The opening not only provides room for the operating ear plate 311 to move, but also ensures that the slide plate 38 remains stable and does not deviate from the predetermined trajectory during movement.

[0028] Please see Figure 2 and Figure 5 The limiting component 5 includes a bidirectional lead screw 51, which is movably installed inside the mounting frame 2. The bidirectional lead screw 51 passes through the interior of the guide groove 4. The external threads of the bidirectional lead screw 51 are fitted with symmetrically arranged sliders 52. The bottom of each slider 52 is fixedly connected to a vertical plate 53. A locking head 54 is provided on the lower inner side of the vertical plate 53. An operating head 55 is provided at the end of the slider 52. A groove 9 corresponding to the locking head 54 is opened on the outer side of the filter cylinder 1. The locking head 54 is movably engaged in the interior of the groove 9. After the filter cylinder 1 is docked, the operating head 55 is rotated to rotate the bidirectional lead screw 51 in the mounting frame 2. The rotation of the bidirectional lead screw 51 causes the symmetrically arranged sliders 52 in the guide groove 4 to move in opposite directions. The movement of the sliders 52 drives the vertical plate 53 below them to move, so that the locking head 54 on the vertical plate 53 moves inward and engages in the groove 9 on the outer side of the filter cylinder 1 for positioning. This, in conjunction with the docking component 3, ensures the stable fixation of the filter cylinder 1 and enhances the fixing effect.

[0029] The vertical plate 53 is provided with reinforcing ribs 56 on both the inner and outer sides. The reinforcing ribs 56 effectively improve the overall strength of the vertical plate 53 and prevent deformation due to uneven stress during use. The reinforcing ribs 56 can also distribute the pressure transmitted by the clamping head 54 during the clamping process, thereby extending the service life of the vertical plate 53.

[0030] Please see Figure 1The filter cylinder 1 has an oil drain port 7 and an oil inlet port 6 on its left and right sides, respectively. A drain valve 8 is fixedly installed at the bottom of the filter cylinder 1. The design of the drain valve 8 facilitates the periodic removal of impurities and moisture accumulated in the filter cylinder 1, thereby ensuring the normal operation and filtration effect of the filter. The oil drain port 7 and the oil inlet port 6 ensure a reasonable oil flow path, which can effectively reduce fluid resistance and improve filtration efficiency.

[0031] Working principle: When installing the filter cylinder 1, the operating ear plate 311 is pushed upward to move the sliding plate 38 and the bottom insertion post 39 into the operating groove 36 and the fixing hole 37 respectively. The sliding plate 38 squeezes the support spring 310, and the insertion post 39 moves upward in the fixing hole 37 to move out of the slot 34. Then, the filter cylinder 1 is inserted into the slot 34 by the locking block 33 on the side of the docking post 32 fixed at the top and the corresponding limiting plate 35 and rotated, so that the slot 34 is inserted into the inside of the limiting plate 35. At this time, the fixing hole 37 in the docking cylinder 31 and the fixing hole 37 in the locking block 33 coincide. After the operating ear plate 311 is released, the sliding plate 38 is pushed by the elastic force of the support spring 310 to move the insertion post 39 downward, so that the insertion post 39 is inserted into the fixing hole 37 inside the locking block 33 for limiting and fixing. The structure is simple and convenient to operate for fixing, installing and disassembling the filter cylinder 1.

[0032] After the filter housing 1 is installed, the bidirectional lead screw 51 inside the mounting bracket 2 is rotated by rotating the operating head 55. The rotation of the bidirectional lead screw 51 drives the sliding blocks 52, which are symmetrically arranged in the guide groove 4, to move in opposite directions. The sliding blocks 52 drive the vertical plate 53 at its bottom to move. The locking head 54 on the inner side of the vertical plate 53 moves inward and locks into the groove 9 on the outer side of the filter housing 1 for limiting. Then, it cooperates with the docking assembly 3 to ensure the fixation of the filter housing 1 and improve the fixing effect. The above is the working process of the whole device. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] 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. A spin-on diesel filter, comprising a filter housing (1) and a mounting bracket (2), characterized in that: A docking assembly (3) is provided between the mounting bracket (2) and the filter cylinder (1). A guide groove (4) is provided inside the mounting bracket (2). A limiting assembly (5) is movably installed inside the guide groove (4). The docking assembly (3) includes a docking cylinder (31) and a docking post (32). The docking cylinder (31) and the docking post (32) are respectively fixedly installed at the bottom of the mounting frame (2) and the top of the filter cylinder (1). A ring-shaped locking block (33) is fixedly connected to the outside of the docking post (32). A locking groove (34) is opened at the bottom of the docking cylinder (31). A limiting plate (35) corresponding to the locking block (33) is fixedly installed on the inside of the locking groove (34). An operating groove (36) is opened at the top inside the docking cylinder (31). Fixing holes (37) are opened inside both the docking cylinder (31) and the locking block (33). A sliding plate (38) is movably engaged inside the operating groove (36). A pin (39) corresponding to the fixing hole (37) is fixedly connected to the bottom of the sliding plate (38). A support spring (310) is movably engaged at the top of the fixing hole (37).

2. The spin-on diesel filter according to claim 1, characterized in that: The limiting plate (35) has an "L" shaped cross section. The number of the limiting plate (35) and the card block (33) are equal and correspond one-to-one. The spacing of the limiting plate (35) is adapted to the size of the card block (33).

3. The spin-on diesel filter according to claim 1, characterized in that: The position of the insert (39) corresponds to the fixing hole (37), and the insert (39) is movably engaged inside the fixing hole (37).

4. The spin-on diesel filter according to claim 1, characterized in that: An operating ear plate (311) is fixedly connected to the outer side of the sliding plate (38), and an opening corresponding to the operating ear plate (311) is provided on the side of the docking cylinder (31).

5. The spin-on diesel filter according to claim 1, characterized in that: The limiting component (5) includes a bidirectional lead screw (51), which is movably installed inside the mounting bracket (2). The bidirectional lead screw (51) passes through the inside of the guide groove (4). The external thread of the bidirectional lead screw (51) is fitted with sliders (52) arranged symmetrically at the front and rear. The bottom of each slider (52) is fixedly connected to a vertical plate (53). A clamp (54) is provided on the lower inner side of the vertical plate (53). An operating head (55) is provided at the end of the slider (52). A groove (9) corresponding to the clamp (54) is opened on the outer side of the filter cylinder (1). The clamp (54) is movably engaged inside the groove (9).

6. The spin-on diesel filter according to claim 5, characterized in that: The vertical plate (53) is provided with reinforcing ribs (56) on both the inner and outer sides.

7. The spin-on diesel filter according to claim 1, characterized in that: The filter cylinder (1) is provided with an oil drain port (7) and an oil inlet port (6) on its left and right sides respectively, and a drain valve (8) is fixedly installed at the bottom of the filter cylinder (1).

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