Quick replacement device for fuel filter of diesel vehicle

Abstract

The utility model discloses a quick replacement device for a fuel filter of a diesel vehicle, and belongs to the field of fuel filters of diesel vehicles. The oil inlet and the oil outlet are formed in the top end of the filter, the end cover is fixedly installed at the top end of the filter, the oil inlet connector and the oil outlet connector are arranged on the end cover and communicated with the oil inlet and the oil outlet respectively, and a first annular protrusion is arranged on the edge of the top end of the filter. A second annular protrusion making contact with the first annular protrusion is arranged on the side face of the end cover, a hoop sleeve surrounds the side face of the first annular protrusion and the side face of the second annular protrusion, and a lock bolt is hinged to a first butt joint of the hoop sleeve. According to the quick replacement device for the fuel filter of the diesel vehicle, the mounting and dismounting processes of the filter and the end cover are simplified in a clamping and hoop locking mode, meanwhile, the quick replacement device can adapt to the carrier environment with the limited space, and the problem that a traditional threaded connection structure is inconvenient to dismount and mount when the space is limited is solved.

Description

Technical Field

[0001] This application relates to the field of diesel vehicle fuel filter technology, specifically a quick replacement device for diesel vehicle fuel filters. Background Technology

[0002] The fuel filter is an important component of the diesel vehicle fuel system. Its main function is to filter impurities and water from the diesel fuel, ensuring that the fuel supplied to the engine for combustion is purer.

[0003] The common installation method for diesel filter bodies and end caps is a screw connection, requiring unscrewing for each replacement. However, some carriers have complex structures and limited space for filter movement, making the unscrewing operation inconvenient and hindering replacement and maintenance.

[0004] Therefore, this application provides a quick replacement device for diesel vehicle fuel filters to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a quick replacement device for a diesel vehicle fuel filter, which aims to solve the problem mentioned in the background art that existing diesel filters are inconvenient to twist on space-constrained carriers, resulting in inconvenient disassembly and assembly.

[0006] To achieve the above objectives, this application provides the following technical solution: a quick replacement device for a diesel vehicle fuel filter, comprising a filter, an inlet and an outlet disposed at the top of the filter, an end cap fixedly installed at the top of the filter, and an inlet connector and an outlet connector disposed on the end cap and respectively communicating with the inlet and the outlet.

[0007] The filter has a first annular protrusion at the top edge, and the end cap has a second annular protrusion on its side that contacts the first annular protrusion. The first and second annular protrusions are surrounded by a hoop. A locking bolt is hinged to the first mating head of the hoop, and a locking nut is screwed onto the movable end of the locking bolt to contact the hoop and lock the first and second mating heads.

[0008] The filter has a first slot and a second slot with different diameters at its top, and the end cap has a first frame and a second frame that match the first slot and the second slot at its bottom. This snap-fit ​​and clamp-locking method simplifies the installation and disassembly of the filter and end cap, while also adapting to space-constrained environments, solving the problem of inconvenient assembly and disassembly in space-constrained traditional screw-fit structures.

[0009] Preferably, a first sealing ring is adhered to the bottom end of the first card frame.

[0010] Preferably, a second sealing ring is adhered to the bottom end of the second card frame.

[0011] Preferably, the oil outlet connector extends to the inner side of the second card frame and is inserted into the oil outlet, and the connection between the oil outlet and the oil outlet connector has a sealing sleeve.

[0012] Preferably, the oil inlets are arranged in a ring array around the oil outlet and are all located in the oil inlet cavity between the second frame and the oil outlet connector. The oil inlet cavity is connected to the oil inlet and the oil inlet connector respectively.

[0013] Preferably, the inner ring of the sleeve has a binding groove that matches the first annular protrusion and the second annular protrusion.

[0014] Preferably, the lock nut has a lever on its side for actuation.

[0015] This quick-change device for diesel fuel filters simplifies the installation and removal of the filter and end cap through snap-fit ​​and clamp locking, while also adapting to space-constrained environments, solving the problem of inconvenient disassembly and assembly when space is limited by traditional screw-fit structures.

[0016] This quick-change device for diesel fuel filters makes filter replacement and maintenance simpler and faster due to its snap-fit ​​and clamp locking mechanism, reducing maintenance costs and time. Attached Figure Description

[0017] Figure 1 A schematic diagram of a quick-change device for a diesel vehicle fuel filter.

[0018] Figure 2 An exploded structural diagram of a quick-change device for a diesel vehicle fuel filter.

[0019] Figure 3 This is a schematic diagram of the inner structure of the end cap of a quick-change device for a diesel vehicle fuel filter.

[0020] In the picture:

[0021] 1. Filter; 11. Oil inlet; 12. Oil outlet; 13. First annular protrusion; 14. First retaining groove; 15. Second retaining groove;

[0022] 2. End cap; 21. Oil inlet connector; 22. Oil outlet connector; 23. Second annular protrusion; 24. First retaining frame; 241. First sealing ring; 25. Second retaining frame;

[0023] 251. Second sealing ring;

[0024] 3. Hoop; 31. First joint; 32. Second joint; 33. Lock bolt; 34. Lock nut; 341. Dial plate; 35. Edge groove. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] This embodiment provides a quick replacement device for a diesel vehicle fuel filter, such as... Figures 1-3 As shown, the quick replacement device for diesel vehicle fuel filter includes a filter 1, an inlet 11 and an outlet 12 located at the top of the filter 1, an end cap 2 fixedly installed at the top of the filter 1, and an inlet connector 21 and an outlet connector 22 located on the end cap 2 and respectively communicating with the inlet 11 and the outlet 12.

[0027] The filter 1 has a first annular protrusion 13 at the top edge, and the end cap 2 has a second annular protrusion 23 on the side that contacts the first annular protrusion 13. The first annular protrusion 13 and the second annular protrusion 23 are surrounded by a sleeve 3. A locking bolt 33 is hinged to the first joint 31 of the sleeve 3. A locking nut 34 is screwed to the movable end of the locking bolt 33 to contact the second joint 32 of the sleeve 3 to lock the first joint 31 and the second joint 32.

[0028] The filter 1 has a first slot 14 and a second slot 15 with different diameters at the top, and the end cap 2 has a first frame 24 and a second frame 25 that match the first slot 14 and the second slot 15 at the bottom.

[0029] In use, place the filter 1 in the predetermined position, ensuring that the first annular protrusion 13 and the second slot 15 at its top are in an easy-to-install state. Align the bottom end of the end cap 2 with the top end of the filter 1, ensuring that the first retaining frame 24 and the second retaining frame 25 are aligned with the first slot 14 and the second slot 15 of the filter 1, respectively. Gently lift the filter 1 so that the first retaining frame 24 and the second retaining frame 25 are respectively inserted into the first slot 14 and the second slot 15, achieving a preliminary fixed connection. Wrap the clamp 3 around the sides of the first annular protrusion 13 and the second annular protrusion 23, ensuring that the clamp 3 can fit tightly against both. Hinge the bolt 33 from the first joint 31 of the clamp 3 and rotate it to a position opposite to the second joint 32. Screw the lock nut 34 onto the movable end of the bolt 33 and gradually tighten it until the lock nut 34 is in close contact with the second joint 32 of the clamp 3, thereby locking the first joint 31 and the second joint 32, and achieving the fastening of the clamp 3.

[0030] Furthermore, a first sealing ring 241 is bonded to the bottom of the first frame 24, and a second sealing ring 251 is bonded to the bottom of the second frame 25. When the filter 1 is inserted into the end cap 2, the first sealing ring 241 and the second sealing ring 251 both further play a sealing role to prevent fuel from leaking from the gap between the filter 1 and the end cap 2.

[0031] It should be noted that the oil outlet connector 22 extends to the inner side of the second retaining frame 25 and is inserted into the oil outlet 12. The connection between the oil outlet 12 and the oil outlet connector 22 has a sealing sleeve. The oil inlets 11 are arranged in a ring array around the oil outlet 12 and are all located in the oil inlet chamber between the second retaining frame 25 and the oil outlet connector 22. The oil inlet chamber is connected to the oil inlet 11 and the oil inlet connector 21 respectively. The oil outlet connector 22 extends to the inner side of the second retaining frame 25 and is inserted into the oil outlet 12. A sealing sleeve is provided at the connection between the oil outlet 12 and the oil outlet connector 22 to further enhance the sealing performance and reduce the risk of fuel leakage. Fuel enters the oil inlet chamber through the oil inlet 11 and then enters the external fuel system through the oil inlet connector 21. The design of the oil inlet chamber makes the fuel flow smoother and reduces the pressure loss of the fuel system.

[0032] Specifically, the inner ring of the sleeve 3 has a binding groove 35 that matches the first annular protrusion 13 and the second annular protrusion 23; when the sleeve 3 is wrapped around the first annular protrusion 13 and the second annular protrusion 23, the binding groove 35 can fit tightly against the two, ensuring the stability of the sleeve 3.

[0033] Furthermore, the lock nut 34 has a lever 341 on its side for turning; when it is necessary to remove the sleeve 3, the lock nut 34 can be rotated by turning the lever 341, thereby easily unscrewing the lock nut 34 from the bolt 33.

[0034] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A quick-change device for a diesel vehicle fuel filter, comprising a filter (1), an inlet (11) and an outlet (12) disposed at the top of the filter (1), an end cap (2) fixedly mounted at the top of the filter (1), and an inlet connector (21) and an outlet connector (22) disposed on the end cap (2) and communicating with the inlet (11) and the outlet (12) respectively, characterized in that: The filter (1) has a first annular protrusion (13) at the top edge, and the end cap (2) has a second annular protrusion (23) on the side that contacts the first annular protrusion (13). The first annular protrusion (13) and the second annular protrusion (23) are surrounded by a sleeve (3). A locking bolt (33) is hinged on the first joint (31) of the sleeve (3), and a locking nut (34) is screwed onto the movable end of the locking bolt (33) for contacting the second joint (32) of the sleeve (3) to lock the first joint (31) and the second joint (32). The filter (1) has a first slot (14) and a second slot (15) with different diameters at the top, and the end cap (2) has a first frame (24) and a second frame (25) at the bottom that match the first slot (14) and the second slot (15).

2. The quick-change device for diesel vehicle fuel filters according to claim 1, characterized in that: The first card frame (24) has a first sealing ring (241) bonded to its bottom end.

3. The quick-change device for diesel vehicle fuel filters according to claim 2, characterized in that: The second card frame (25) has a second sealing ring (251) bonded to its bottom end.

4. The quick-change device for diesel vehicle fuel filter according to claim 3, characterized in that: The oil outlet connector (22) extends to the inside of the second frame (25) and is inserted into the oil outlet (12). The connection between the oil outlet (12) and the oil outlet connector (22) has a sealing sleeve.

5. The quick-change device for diesel vehicle fuel filters according to claim 4, characterized in that: The oil inlet (11) is arranged in a ring array around the oil outlet (12) and is located in the oil inlet cavity between the second frame (25) and the oil outlet connector (22). The oil inlet cavity is connected to the oil inlet (11) and the oil inlet connector (21) respectively.

6. The quick-change device for diesel vehicle fuel filters according to claim 5, characterized in that: The inner ring of the sleeve (3) is provided with a binding groove (35) that matches the first annular protrusion (13) and the second annular protrusion (23).

7. The quick-change device for diesel vehicle fuel filter according to claim 6, characterized in that: The lock nut (34) has a lever (341) on its side for actuation.

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