A base device applicable to a fuel filter and a fuel filter

Abstract

The present invention provides a base device applicable to a fuel filter and a fuel filter. The base device includes an upper base body and a lower base body. The upper base body and the lower base body are opposed to each other to form an installation space suitable for defining a filter element. The lower base body is provided with a plug-in portion on its base for positioning the filter element in the installation space. The upper base body includes a cover body and a top plate combined into an integral structure. The cover body and the base are spaced apart and opposed to each other to further directly abut and engage the filter element on the end faces of the cover body and the base after an external filter element is installed in the plug-in portion. Among them, the top plate is provided with an engaging platform located above and supporting legs located below. The supporting legs are integrally connected between the engaging platform and the cover body for externally disposing the engaging platform. Among them, a channel opening penetrating through its end face is formed on the cover body, and the channel opening communicates with the inside of the filter element assembled and defined in the installation space.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and more particularly, to a base device suitable for a fuel filter and a fuel filter. Background Art

[0002] With the steady and continuous development of the Chinese automotive industry, automotive parts have also developed. As a consumable part of automotive parts, the filter has a large market demand. Also, with the increasing improvement of people's living standards, people have put forward higher requirements for the appearance of auxiliary equipment parts of automobiles.

[0003] At present, with the addition of various streamline shapes and design languages, the conventional connection and assembly methods of existing fuel filters are difficult to effectively improve space utilization. Moreover, due to the improvement of paper core specifications to ensure long-life filtration performance of the filter element, in traditional fuel filters, the structure is simple, and the fixed connection methods between various structural parts are cumbersome, making it very inconvenient to disassemble the filter element during replacement and maintenance, resulting in high replacement costs. Some detachable and replaceable filter elements on the market are troublesome to load and unload, and it is also very inconvenient to clean the inside of non-replaceable parts, thus greatly affecting the daily use of the filter. Summary of the Invention

[0004] For the traditional connection method between a paper filter element and a base, the disassembly and assembly method between the connecting parts in the base is complex, and the assembly and maintenance costs between two independent structural parts are higher. The production process is numerous, which undoubtedly increases costs and materials used. Moreover, the space occupancy rate of the structural parts is high, resulting in limited filter element specifications and reduced dust capacity. In view of this, the purpose of the present invention is to provide a base device suitable for a fuel filter and a fuel filter to solve the above problems.

[0005] The present invention adopts the following solutions:

[0006] The present application provides a base device suitable for a fuel filter, including an upper base body and a lower base body. The upper base body and the lower base body are opposed to each other to form an installation space suitable for defining a filter element. The lower base body is provided with a plugging part on its base for positioning the filter element in the installation space. The upper base body includes a cover body and a top plate combined into an integrated structure. The cover body and the base are spaced apart and face each other directly, so as to further directly abut and engage the filter element on the end faces of the cover body and the base after an external filter element is installed on the plugging part. Among them, the top plate is provided with an engaging platform located above and supporting legs located below. The supporting legs are integrally connected between the engaging platform and the cover body for externally supporting the engaging platform. Among them, a through-channel opening is formed on the end face of the cover body, and the through-channel opening communicates with the inside of the filter element assembled and defined in the installation space.

[0007] As a further improvement, the channel opening is provided at the middle position of the end cover, and it is a circular opening to form an oil channel directly exposed to the outside.

[0008] As a further improvement, there are at least three support legs, and they are regularly arranged around the outer periphery of the joint platform.

[0009] As a further improvement, the support legs are configured as sheet-like structures, and these sheet-like structures stand on the cover body. Their upper ends extend to be flush with the top surface of the joint platform, and their lower ends abut against the end surface of the cover body and partially extend to block the channel opening.

[0010] As a further improvement, the joint platform is configured as a funnel-shaped platform, which includes an inner step layer provided at the upper part, an internal thread opening provided in the middle, and a confluent area in the shape of a pen tip provided at the lower part. The inner step layer, the internal thread opening and the confluent area are communicated with each other. The internal thread opening is used to externally connect a valve body part to the joint platform.

[0011] As a further improvement, the inner step layer has at least two inner ring steps, and their inner diameters gradually become smaller from top to bottom. And a diversion port communicating to the outside is opened at the connection between the inner step layer and the internal thread opening.

[0012] As a further improvement, at least three guiding rib strips concentrated at the bottom are provided along the periphery of the confluent area. Lateral openings are formed between two adjacent guiding rib strips. Each rib strip is obliquely arranged from top to bottom at the same confluence point to form a conical hollow pocket opening.

[0013] As a further improvement, the insertion part is constructed to be adapted to the core shaft of the filter element. The core shaft integrally protrudes on the inner end surface of the base, and an insertion port communicating with the core shaft is opened on the outer end surface of the base. The core shaft is provided with a plurality of windows communicating the insertion port to the inside of the filter element along the side. The insertion port is used to externally connect a hollow valve pipe into the core shaft, and an oil port communicating to the filter element is opened at the outer end of the valve pipe.

[0014] As a further improvement, a sealing area is formed on the outer peripheral side of the cover body for sleeving an external sealing member. A flange platform is sunken and formed on its upper end surface, and the top plate is arranged in the sunken area. Its lower end surface is configured as a mating surface for connecting and adapting to the filter element.

[0015] The present application further provides a fuel filter, which includes a housing provided with an oil inlet and an oil outlet, a filter element arranged in the housing, and the above-mentioned base device.

[0016] By adopting the above technical solutions, the present invention can achieve the following technical effects:

[0017] 1. The base device applicable to a fuel filter of the present application improves the space utilization rate by changing the connection method between the top plate and the cover body, enabling a significant increase in the specification of the filter element, ensuring that the filtration area increases by more than 10%, and endowing the filter element with a long service life, corrosion resistance, high temperature resistance, and high filtration performance.

[0018] 2. Among them, the traditional connection method for the base of the filter element is overturned in the structure of the upper matrix. In the product structure, the upper matrix formed by combining the cover body and the top plate is constructed as an integral structure. Thus, the top plate of the filter and the cover body of the base device are combined into an integral part, optimizing the product structure. Under the same volume, the volume of the base device is greatly reduced, the space utilization rate is higher, and the cumbersome assembly process of the product is reduced. At the same time, when replacing the filter element, there is no need to disassemble the filter element and the accessories in the upper matrix, making the replacement more convenient and fast. In addition, the integral upper matrix structure improves the production efficiency by 150%. At the same time, there are also great improvements in appearance and product quality. The first-pass rate is increased to more than 99.5%, the product performance is improved by more than 30%, the filtration accuracy reaches more than 99%, the filtration area is increased, and the service life is extended by 15%.

[0019] 3. Among them, the cover body of the upper matrix and the base of the lower matrix are arranged opposite to each other, forming a flexible installation space with a more stable structure for quickly installing an external filter element. Such an installation method is applicable to various filter element sizes of different specifications, greatly improving the matching of the product and accessories. The entire assembly method is simple and convenient, and the cleaning and maintenance of the internal structure are also more convenient.

[0020] 4. Among them, the cover body and the joint platform are integrally connected by support legs, so that the joint platform on the top plate is externally placed to facilitate the insertion of an external valve body part, achieving more flexible installation and use. Moreover, the channel opening on the cover body can connect the outside of the upper matrix and the inside of the filter element to form a diversion path suitable for the entry and exit of oil, further enhancing the functional effect of the entire fuel filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a fuel filter according to an embodiment of the present invention;

[0022] Figure 2 is Figure 1 a schematic structural diagram from another perspective;

[0023] Figure 3 is Figure 2 a sectional view in;

[0024] Figure 4 is a schematic structural diagram of a base device applicable to a fuel filter according to an embodiment of the present invention;

[0025] Figure 5 is Figure 4 the explosion schematic diagram in

[0026] Figure 6 is the structural schematic diagram of the upper base of the base device applicable to a fuel filter according to an embodiment of the present invention;

[0027] Figure 7 is Figure 6 the structural schematic diagram from one of the perspectives;

[0028] Figure 8 is Figure 6 the structural schematic diagram from another of the perspectives.

[0029] Icon: 1 - upper base; 11 - cover body; 111 - channel opening; 12 - top plate; 121 - joint platform; 1211 - inner stepped layer; 1212 - internal thread opening; 1213 - confluence area; 1214 - inner ring step; 1215 - diversion opening; 1216 - guiding rib; 122 - support leg; 2 - lower base; 21 - base; 22 - insertion part; 23 - insertion opening; 24 - window; 3 - filter element; 4 - valve body part; 5 - hollow valve tube. Detailed implementation manners

[0030] To make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] Embodiment

[0032] In combination with Figures 1 to 8, this embodiment provides a base device suitable for a fuel filter, including an upper base body 1 and a lower base body 2. The upper base body 1 and the lower base body 2 are opposed to each other to form an installation space suitable for defining a filter element 3. The lower base body 2 is provided with a plug-in portion 22 on its base 21 for positioning the filter element 3 in the installation space. The upper base body 1 includes a cover body 11 and a top plate 12 combined into an integral structure. The cover body 11 and the base 21 are spaced apart and facing each other, so as to further directly abut and engage the filter element 3 on the end faces of the cover body 11 and the base 21 after the external filter element 3 is installed on the plug-in portion 22. The top plate 12 is provided with an engaging platform 121 above and support legs 122 below. The support legs 122 are integrally connected between the engaging platform 121 and the cover body 11 to externally position the engaging platform 121. A channel opening 111 penetrating through its end face is formed on the cover body 11, and the channel opening 111 communicates with the inside of the filter element 3 assembled and defined in the installation space.

[0033] In the above base device, by changing the connection mode between the top plate 12 and the cover body 11, the space utilization rate is improved, so that the specification of the filter element 3 can be greatly improved, ensuring that the filtration area increases by more than 10%, making the filter element 3 have a long service life, corrosion resistance, high temperature resistance, and high filtration performance.

[0034] Among them, the connection mode of the traditional base 21 for the filter element 3 is subverted in the structure of the upper base body 1. In the product structure, the upper base body 1 formed by combining the cover body 11 and the top plate 12 is constructed as an integral structure, so that the top plate 12 of the filter and the cover body 11 of the base device are combined into an integral part, optimizing the product structure. Under the same volume, the volume of the base device is greatly reduced, the space utilization rate is higher, and the cumbersome assembly process of the product is reduced. At the same time, when replacing the filter element 3, there is no need to disassemble the filter element 3 and the accessories in the upper base body 1, and the replacement is more convenient and fast. In addition, compared with the existing split assembly method, after multiple experimental analyses, it is obtained that the integral structure of the upper base body 1 improves the production efficiency by 150%, and at the same time, the appearance and product quality are also greatly improved. The first-pass qualification rate is increased to more than 99.5%, and the product performance is improved by more than 30%. The filtration accuracy reaches more than 99%, the filtration area is increased, and the service life is extended by 15%.

[0035] Among them, the cover body 11 of the upper base body 1 and the base 21 of the lower base body 2 are arranged opposite to each other, thus forming a flexible installation space with a more stable structure for quickly installing the external filter element 3. And such an installation method is applicable to the sizes of various different specifications of the filter element 3, greatly improving the matching of the product and the accessories. The entire assembly method is simple and convenient, and the cleaning and maintenance of the internal structure are also more convenient.

[0036] Among them, the cover body 11 and the joint platform 121 are integrally connected by the support legs 122, so that the joint platform 121 on the top plate 12 is externally disposed to facilitate the insertion of an external valve body part 4, achieving more flexible installation and use. Moreover, the channel opening 111 on the cover body 11 can communicate the exterior of the upper base body 1 with the interior of the filter element 3 to form a diversion path suitable for the entry and exit of oil, further enhancing the functional effect of the entire fuel filter.

[0037] As Figure 4 and Figure 5 shown, in this embodiment, the channel opening 111 is opened at the middle position of the end cover, and it is a circular opening to form an oil channel directly exposed to the outside. Thus, oil enters and exits through the oil channel, enhancing the filtering and diversion efficiency of the entire base device.

[0038] In this embodiment, there are at least three support legs 122, and they are regularly arranged around the outer peripheral side of the joint platform 121. Specifically, the support legs 122 are configured as sheet-like structures, which are erected on the cover body 11, with their upper ends extending to be flush with the top surface of the joint platform 121, and their lower ends abutting against the end surface of the cover body 11 and partially extending to cover the channel opening 111.

[0039] As Figures 6 to 8 shown, in this embodiment, the joint platform 121 is configured as a funnel-shaped platform, which includes an inner step layer 1211 provided in the upper part, an internal thread opening 1212 provided in the middle part, and a confluent area 1213 in a pen tip shape provided in the lower part. Among them, the inner step layer 1211, the internal thread opening 1212, and the confluent area 1213 are connected and communicated with each other. The internal thread opening 1212 is used to externally connect the valve body part 4 to the joint platform 121. Oil can be input or output to the seat body device through the externally connected valve body part 4, thus ensuring the efficiency of oil entry and exit. Moreover, the joint platform 121 integrally configured on the cover body 11 not only makes its structure simple and complete, facilitating the replacement and installation of the filter element 3, but also saves the internal installation space, and can increase the paper core specification of the filter element 3 to improve the dust holding capacity.

[0040] Among them, the inner step layer 1211 is provided with at least two inner ring steps 1214, whose inner diameters gradually become smaller from top to bottom, and a diversion opening 1215 penetrating to the outside is opened at the connection between the inner step layer 1211 and the internal thread opening 1212. On the one hand, the multiple inner ring steps 1214 with gradually decreasing inner diameters serve the purpose of concentrating the flow to facilitate the rapid entry and exit of the oil fluid. On the other hand, a diversion opening 1215 is opened at the connection position between the inner step layer 1211 and the internal thread opening 1212, further making the way of oil entry and exit more diverse, thereby enhancing the operability and versatility of the entire base device.

[0041] Among them, the current collecting area 1213 is provided with at least three guiding rib strips 1216 concentrated at the bottom along the periphery. Lateral openings are formed between every two guiding rib strips 1216. Each rib strip is obliquely arranged from top to bottom at the same converging point to form a conical hollow pocket opening. Thus, the hollow pocket opening structure integrates current collection and guiding, and can significantly improve the integral assembly effect of the top plate 12 on the cover body 11.

[0042] As Figure 3 and Figure 5 shown, in this embodiment, the plug-in part 22 is configured to be adapted to the core shaft of the filter element 3. The core shaft integrally protrudes on the inner end surface of the base 21, and an insertion port 23 communicating with the core shaft is formed on the outer end surface of the base 21. The core shaft is provided with a plurality of windows 24 communicating the insertion port 23 to the inside of the filter element 3 along the side. The insertion port 23 is used to externally connect a hollow valve pipe 5 to the core shaft, and an oil port communicating with the filter element 3 is formed at the outer end of the valve pipe. Thus, the input or output of oil is realized through the oil port to the filter element 3 at the installation space of the base device, so as to quickly filter out the oil suitable for fuel use and send it to the external engine.

[0043] In this embodiment, a sealing area is formed on the outer peripheral side of the cover body 11 for sleeving an external seal (not shown in the figure). The upper end surface is recessed to form a flange platform arranged in a sunken manner, and the top plate 12 is arranged in the sunken area. The lower end surface is configured to be a mating surface for connecting and adapting to the filter element 3. Among them, it is ensured that the cover body 11 is hermetically assembled with the outer shell of the fuel filter, which is beneficial to the tight guiding transmission of the oil. And the top plate 12 is specifically arranged in the sunken area of the cover body 11, further improving the effect of oil current collection. In addition, it should be noted that the mating surface can further be configured as an adhesive surface to further abut and limit the filter element 3 inserted and fixed on the base 21 on the cover body 11, realizing the clamping and fixing of the two end surfaces of the filter element 3, making the disassembly, assembly and maintenance of the filter element 3 simpler and more efficient.

[0044] In addition, in combination with Figures 1 to 3 , this embodiment further provides a fuel filter, which includes an outer shell (not shown in the figure) provided with an oil inlet and an oil outlet, a filter element 3 arranged in the outer shell, and the above base device.

[0045] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention.

Claims

1. A base device suitable for a fuel filter, comprising an upper base and a lower base, wherein the upper base and the lower base are arranged opposite to each other to form an installation space suitable for defining a filter element; It is characterized in that The lower base body is provided with a plug-in portion on its base for positioning the filter element in the installation space; the upper base body comprises a cover body and a top plate combined into an integral structure, and the cover body and the base are spaced and facing each other, so that after the external filter element is installed in the plug-in portion, the filter element can be directly abutted and joined against the end surfaces of the cover body and the base; The top plate is provided with a bonding platform located at the top and supporting legs located at the bottom, and the supporting legs are integrally connected between the bonding platform and the cover body to externally place the bonding platform; The cover body is provided with a passage opening penetrating through its end surface, and the passage opening is connected to the interior of the filter element assembled and defined in the installation space; Wherein: the joining platform is configured as a funnel-shaped platform, which includes an inner step layer provided at the upper part, an inner threaded opening provided at the middle part, and a confluence area in the shape of a pen tip provided at the lower part, the inner step layer, the inner threaded opening and the confluence area are arranged in communication with each other, and the inner threaded opening is used for externally connecting the valve body on the joining platform; the inner step layer is provided with at least two inner ring steps, the inner diameter of which gradually decreases from top to bottom, and a guide port that passes through to the outside is opened at the junction of the inner step layer and the inner threaded opening; the confluence area is provided with at least three guide ribs concentrated at the bottom along the four sides, and a lateral opening is formed between the two guide ribs, and each rib is obliquely arranged at the same convergence point from top to bottom to form a conical hollow pocket.

2. The base device applicable to a fuel filter according to claim 1, characterized in that, The passage opening is opened in the middle of the end cover and is in the form of a circular opening to form an oil passage directly exposed to the outside.

3. The base device applicable to a fuel filter according to claim 1, characterized in that, There are at least three supporting legs, and a regular ring of the supporting legs is arranged on the outer peripheral side of the bonding platform.

4. The base device applicable to a fuel filter according to claim 3, characterized in that, The support legs are configured as a sheet structure, which stands upright on the cover body, with its upper end extending to be flush with the top surface of the bonding platform, and its lower end abutting against the end surface of the cover body and partially extending to cover the channel opening.

5. The base device applicable to a fuel filter according to claim 1, characterized in that, The plug-in portion is constructed to be adapted for a core shaft of the filter element, the core shaft is integrally protruded on the inner end face of the base, and the outer end face of the base is provided with a plug-in port that is directly connected to the core shaft, the core shaft is provided with a plurality of windows connecting the plug-in port to the interior of the filter element along the side, the plug-in port is used to connect a hollow valve tube to the core shaft, and an oil port connected to the filter element is provided at the outer end of the valve tube.

6. The base device applicable to a fuel filter according to claim 1, characterized in that, The outer peripheral side of the cover body forms a sealing area for sleeve connection with an external sealing member, the upper end surface of the cover body is recessed to form a flange platform arranged downwardly and the top plate is arranged in the downwardly arranged area, and the lower end surface of the cover body is configured as a matching surface for connecting an adapter filter element.

7. A fuel filter, characterized in that, The invention comprises a shell provided with an oil inlet and an oil outlet, a filter element arranged in the shell, and a base device suitable for a fuel filter as claimed in any one of claims 1 to 6.

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