Novel fuel filter aluminum cover plate base structure

Abstract

The utility model discloses a novel base structure of an aluminum cover plate of a fuel filter, and relates to the technical field of fuel filters. The cover plate comprises a cover plate body, an oil inlet pipe and a sealing assembly, the oil inlet pipe is fixed to the center of the top end of the cover plate body, a plurality of outer sealing grooves are formed in the upper portion of the peripheral side of the oil inlet pipe, a plurality of inner sealing grooves are formed in the upper portion of the inner wall of the oil inlet pipe, and sealing rings are fixed in the outer sealing grooves and the inner sealing grooves. A sealing assembly is fixed to the inner top of the cover plate body. By arranging the cover plate main body, the oil inlet pipe and the sealing assembly, the problems that the aluminum cover plate base structure of the fuel filter needs to be matched with an additional sealing structure for installing a connector of an oil conveying pipeline, installation is not convenient enough, and the aluminum cover plate base structure can be loosened due to vibration along with work are solved; the aluminum cover plate base structure has the advantages that the aluminum cover plate base structure of the fuel filter is provided with a connector of an oil conveying pipeline, sealing is more convenient, and the aluminum cover plate base structure cannot loosen due to vibration.

Description

Technical Field

[0001] This utility model belongs to the technical field of fuel filter, and in particular relates to a novel aluminum cover plate base structure for fuel filter. Background Technology

[0002] The aluminum cover plate is a porous part cast from aluminum alloy with threaded holes. It is connected to the filter base via threads to install the filter. During the process, it also compresses the sealing element to achieve an external seal. Its pores serve as channels for the oil circuit, an essential pathway in the hydraulic oil circuit. As a major load-bearing component, the aluminum cover plate mainly withstands the impact pressure of the hydraulic oil and the pre-tightening force of the filter assembly. However, the structure of the fuel filter aluminum cover plate base still has the following drawbacks in actual use:

[0003] When the aluminum cover base structure of the fuel filter is in operation, it usually needs to be sealed with the pipeline joint that delivers oil. When installing the pipeline joint, it is often only possible to determine whether the joint is inserted into the pipeline or to put the joint on the pipeline. Both of these situations require additional sealing structure, which makes the installation inconvenient.

[0004] Secondly, after the fuel filter aluminum cover base structure is installed, it is directly sealed by pressing it against the filter. As the operation progresses, the threaded connection structure may loosen due to factors such as vibration, affecting the stability of the cover structure. Utility Model Content

[0005] The purpose of this utility model is to provide a novel aluminum cover plate base structure for fuel filters. By setting up a cover plate body, an oil inlet pipe, and a sealing component, it solves the problems of the need for an additional sealing structure to cooperate with the joint of the oil delivery pipeline when installing the aluminum cover plate base structure of the fuel filter, which is not convenient for installation, and the problem that the aluminum cover plate base structure will loosen due to vibration during operation.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a novel aluminum cover plate base structure for a fuel filter, comprising a cover plate body, an oil inlet pipe, and a sealing assembly. An oil inlet pipe is fixed to the center of the top of the cover plate body. Several external sealing grooves are formed on the upper periphery of the oil inlet pipe, and several internal sealing grooves are formed on the upper inner wall of the oil inlet pipe. Sealing rings are fixed within both the external and internal sealing grooves. A sealing assembly is fixed to the inner top of the cover plate body. During operation, the cover plate body is installed on the filter, providing a sealing function. Oil is transported to the filter element inside the cover plate body through the oil inlet pipe. The sealing assembly seals the gap between the filter and the cover plate body when the cover plate body is installed on the filter.

[0008] Furthermore, a central oil inlet hole with the same inner diameter as the oil inlet pipe is vertically opened through the top center of the cover plate body. The central oil inlet hole is connected to the oil inlet pipe. Oil outlet holes are arranged in a ring array on the top of the cover plate body outside the oil inlet pipe. The central oil inlet hole at the top of the cover plate body is connected to the oil inlet pipe to realize oil transportation. The oil outlet holes arranged in a ring outside the oil inlet pipe are used to output filtered oil, forming a complete oil circulation system.

[0009] Furthermore, a fixing sleeve is fixed to the top of the inner ring of the cover plate body of the sealing assembly, and a movable groove is formed between the fixing sleeve and the inner wall of the cover plate body. The sealing assembly is set in the movable groove. The movable groove formed by the fixing sleeve and the inner wall of the cover plate body is used to accommodate the sealing assembly. The threaded structure on the outside of the fixing sleeve enables a detachable connection with the filter. The movable groove provides installation space and compression stroke for the sealing assembly.

[0010] Furthermore, the lower periphery of the oil inlet pipe is fixed with reinforcing ribs in a ring array. The reinforcing ribs are fixed between the oil outlet holes at the top of the cover plate body. The reinforcing ribs are distributed in a ring array at the lower part of the oil inlet pipe, connecting the cover plate body and the oil inlet pipe. By increasing the contact area and structural support, the mechanical strength and vibration resistance of the connection part are effectively improved.

[0011] Furthermore, the sealing assembly includes a flexible sleeve, a fixing band, and adhesive strips. The fixing band is fixed to the top of the movable groove. Annular adhesive strips are fixed to the inner and outer edges of the bottom end of the fixing band. The flexible sleeve is fixed between the two adhesive strips at the bottom end of the fixing band. The sealing assembly adopts a layered structure, with the fixing band anchored to the top of the movable groove and the flexible sleeve connected by double-sided adhesive strips. This design ensures both the reliability of the seal's fixation and the freedom of movement of the flexible seal.

[0012] Furthermore, the sealing assembly also includes elastic strips. Several elastic strips with the same axis are fixed inside the flexible sleeve. The flexible sleeve has coaxial elastic strips inside, which generate uniform radial deformation when compressed. The elastic strips enhance the sealing contact pressure and avoid excessive compression that could damage the sealing body, thus achieving a dynamic sealing effect.

[0013] This utility model has the following beneficial effects:

[0014] This invention solves the problem of inconvenient installation caused by the need for additional sealing structures at the joints of the fuel filter's aluminum cover plate base structure for the fuel delivery pipeline, by setting up a cover plate body and an oil inlet pipe. After the cover plate body is installed on the filter and pressed tightly against the filter element, the installation of the oil inlet pipe and the pumping fuel pipeline can be prepared. When the pumping fuel pipeline joint is fitted onto the periphery of the oil inlet pipe, the sealing ring on the periphery of the oil inlet pipe fills the gap between the pumping fuel pipeline joint and the oil inlet pipe. When the pumping fuel pipeline joint is fitted inside the oil inlet pipe, the sealing ring on the inner wall of the oil inlet pipe fills the gap between the pumping fuel pipeline joint and the oil inlet pipe. This makes the installation of the fuel filter's aluminum cover plate base structure for the fuel delivery pipeline joint more convenient, as no additional sealing structure is required.

[0015] This invention solves the problem of the aluminum cover plate base structure of the fuel filter becoming loose due to vibration during operation by setting up a cover plate body and a sealing component. During the tightening process between the cover plate body and the filter installation port, the filter installation port enters the movable groove, squeezing the flexible sleeve. This causes the elastic strip in the flexible sleeve to be squeezed simultaneously. The flexible sleeve squeezes the inner wall of the cover plate body and the periphery of the fixed sleeve. After tightening, the elasticity of the flexible sleeve and its elastic strip increases the installation tightness between the cover plate body and the filter, and prevents the cover plate body from becoming loose during vibration. This makes the installation of the aluminum cover plate base structure of the fuel filter more secure during operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A bottom-view perspective view of a novel aluminum cover base structure for a fuel filter;

[0018] Figure 2 This is a bottom-view three-dimensional structural diagram of the main body of the cover plate;

[0019] Figure 3 This is a top-view 3D structural diagram of the oil inlet pipe;

[0020] Figure 4 A bottom-view perspective view of the cut-out structure of the sealing assembly.

[0021] Figure 5 for Figure 4 Enlarged view of the structure at point A in the image;

[0022] Figure 6This is a three-dimensional view of the assembly structure of a novel aluminum cover plate base structure for a fuel filter.

[0023] Figure label:

[0024] 1. Cover plate body; 101. Central oil inlet hole; 102. Oil outlet hole; 103. Fixed sleeve; 104. Movable groove; 2. Oil inlet pipe; 201. Outer sealing groove; 202. Inner sealing groove; 203. Sealing ring; 204. Reinforcing rib; 3. Sealing assembly; 301. Flexible sleeve; 3011. Elastic strip; 302. Fixing band; 303. Adhesive strip. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation

[0026] Please see Figure 1 , 2 3, 6. This utility model is a novel aluminum cover plate base structure for a fuel filter, including a cover plate body 1, an oil inlet pipe 2, and a sealing component 3. The oil inlet pipe 2 is fixed at the center of the top of the cover plate body 1. The cover plate body 1 is connected to the filter base by a threaded connection. The oil inlet pipe 2 delivers oil to the filter element inside the filter. Several external sealing grooves 201 are opened on the upper part of the periphery of the oil inlet pipe 2, and several internal sealing grooves 202 are opened on the upper part of the inner wall of the oil inlet pipe 2. A sealing ring 203 is fixed in both the external sealing grooves 201 and the internal sealing grooves 202. The sealing ring 203 is fixed in the oil inlet pipe 2 through the external sealing grooves 201 and the internal sealing grooves 202, and the sealing ring 203 provides a sealing function for the oil delivery pipe, whether it is installed internally or externally. The sealing component 3 is fixed in the inner top of the cover plate body 1, and the sealing component 3 seals the cover plate body 1 therein.

[0027] Specifically, a central oil inlet hole 101 with the same inner diameter as the oil inlet pipe 2 is vertically opened through the top center of the cover plate body 1. The central oil inlet hole 101 is connected to the oil inlet pipe 2. Oil outlet holes 102 are arranged in a ring array on the top of the cover plate body 1 outside the oil inlet pipe 2. When the cover plate body 1 is working, the central oil inlet hole 101 on it is connected to the oil inlet pipe 2, so that the oil in the oil inlet pipe 2 is transported to the filter element of the filter below the cover plate body 1, and after being filtered in the filter element, it is transported to the oil outlet hole 102 for output.

[0028] Furthermore, a fixing sleeve 103 is fixed to the top of the cover body 1 of the inner ring of the sealing assembly 3. A movable groove 104 is formed between the fixing sleeve 103 and the inner wall of the cover body 1. The sealing assembly 3 is disposed in the movable groove 104. The sealing assembly 3 is disposed in the movable groove 104 formed between the fixing sleeve 103 and the inner wall of the cover body 1. The fixing sleeve 103 has threads on its circumference for threaded connection with the corresponding filter installation position.

[0029] Furthermore, the lower periphery of the oil inlet pipe 2 is fixed with reinforcing ribs 204 in a ring array. The reinforcing ribs 204 are fixed between the oil outlet holes 102 at the top of the cover plate body 1. The reinforcing ribs 204 increase the connection stability and connection strength between the oil inlet pipe 2 and the cover plate body 1.

[0030] The operation process of this embodiment is as follows: During operation, after the cover plate body 1 is installed on the filter and pressed tightly with the filter element, the oil inlet pipe 2 and the pumping oil pipeline can be installed. When the pumping oil pipeline connector is fitted onto the periphery of the oil inlet pipe 2, the sealing ring 203 on the periphery of the oil inlet pipe 2 fills the gap between the pumping oil pipeline connector and the oil inlet pipe 2. When the pumping oil pipeline connector is fitted inside the oil inlet pipe 2, the sealing ring 203 on the inner wall of the oil inlet pipe 2 fills the gap between the pumping oil pipeline connector and the oil inlet pipe 2. Specific Implementation

[0031] Please see Figure 1 , 4 5. Based on the specific embodiment 1, the sealing assembly 3 includes a flexible sleeve 301, a fixing band 302, and an adhesive strip 303. The fixing band 302 is fixed to the top of the movable groove 104. Annular adhesive strips 303 are fixed to the inner and outer edges of the bottom end of the fixing band 302. The flexible sleeve 301 is fixed between the two adhesive strips 303 at the bottom end of the fixing band 302. The fixing band 302 in the sealing assembly 3 connects the adhesive strip 303 and the flexible sleeve 301 in the cover plate body 1. The adhesive strip 303 connects the fixing band 302 and the flexible sleeve 301 together.

[0032] Specifically, the sealing assembly 3 also includes elastic strips 3011. Several elastic strips 3011 with the same axis are fixed inside the flexible sleeve 301. The interior of the flexible sleeve 301 is hollow. The elastic strips 3011 inside the flexible sleeve 301 increase the elasticity of the flexible sleeve 301. After being installed on the filter, the flexible sleeve 301 is squeezed against the inner wall of the cover plate body 1 and the periphery of the fixing sleeve 103 to form a tight fit.

[0033] The operation process of this embodiment is as follows: During operation, when installing the cover plate body 1, the bottom opening of the cover plate body 1 is aligned with the mounting port on the filter. The cover plate body 1 is rotated and tightened with the mounting port of the filter. During this process, the mounting port of the filter enters the movable groove 104, squeezing the flexible sleeve 301. This causes the elastic strip 3011 in the flexible sleeve 301 to be squeezed at the same time. The flexible sleeve 301 squeezes the inner wall of the cover plate body 1 and the periphery of the fixed sleeve 103. After tightening, the installation tightness between the cover plate body 1 and the filter is increased by the elastic action of the flexible sleeve 301 and the elastic strip 3011, and the loosening of the cover plate body 1 and the filter is prevented during vibration.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A novel fuel filter aluminum cover base structure, comprising a cover body (1), an oil inlet pipe (2), and a sealing assembly (3), characterized in that: An oil inlet pipe (2) is fixed at the center of the top of the cover plate body (1). Several external sealing grooves (201) are opened on the upper part of the periphery of the oil inlet pipe (2), and several internal sealing grooves (202) are opened on the upper part of the inner wall of the oil inlet pipe (2). A sealing ring (203) is fixed in both the external sealing groove (201) and the internal sealing groove (202). A sealing assembly (3) is fixed at the top inner part of the cover plate body (1). A fixing sleeve (103) is fixed at the top inner part of the cover plate body (1) of the inner ring of the sealing assembly (3). A movable groove (104) is formed between the fixing sleeve (103) and the inner wall of the cover plate body (1). The sealing assembly (3) is set in the movable groove (104); the sealing assembly (3) includes a flexible sleeve (301), a fixing band (302) and an adhesive strip (303). The fixing band (302) is fixed to the top of the movable groove (104). Annular adhesive strips (303) are fixed at the inner and outer edges of the bottom end of the fixing band (302). The flexible sleeve (301) is fixed between the two adhesive strips (303) at the bottom end of the fixing band (302). The sealing assembly (3) also includes an elastic strip (3011). Several elastic strips (3011) with the same axis are fixed in the flexible sleeve (301).

2. The novel fuel filter aluminum cover base structure according to claim 1, characterized in that: The top center of the cover plate body (1) is vertically penetrated by a central oil inlet hole (101) with the same inner diameter as the oil inlet pipe (2). The central oil inlet hole (101) is connected to the oil inlet pipe (2). The top of the cover plate body (1) outside the oil inlet pipe (2) is provided with an oil outlet hole (102) in a ring array.

3. The novel fuel filter aluminum cover base structure according to claim 2, characterized in that: The lower periphery of the oil inlet pipe (2) is fixed with reinforcing ribs (204) in a ring array, and the reinforcing ribs (204) are fixed between the oil outlet holes (102) at the top of the cover plate body (1).

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