Mounting structure of fuel filter element of oiling machine
By using stainless steel materials and a specially designed fuel filter installation structure, the problem of complex disassembly and assembly of existing fuel filters has been solved, achieving quick disassembly and assembly and sealing, thereby improving the efficiency of the fuel dispenser and the service life of the filter.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-06
AI Technical Summary
The existing fuel filter installation structure is complex, making it difficult to quickly install and remove the fuel filter, which affects the efficiency of the fuel dispenser.
Featuring a stainless steel design for the protective casing and sealing cap, combined with a structure of fixing rods, springs, screws, and hexagonal limit buttons, it allows for quick assembly and disassembly through simple operating steps, ensuring sealing and stability.
It enables quick installation and removal of fuel filter elements, simplifies the maintenance process, does not affect the normal use of the fuel dispenser, and extends the service life of the filter element installation structure.
Smart Images

Figure CN223969643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fuel filter technology, and more specifically, to an installation structure for a fuel filter in a refueling machine. Background Technology
[0002] The fuel filter is a key component of a fuel dispenser. Its main function is to filter out impurities and moisture from the fuel, ensuring clean fuel enters the engine, thereby protecting it from damage and improving combustion efficiency. A well-designed fuel filter installation structure not only facilitates filter replacement and maintenance but also guarantees the system's sealing and stability.
[0003] Based on the above, the inventors have discovered that the existing fuel filter installation structure is relatively complex and cannot be quickly disassembled and assembled, thus affecting the subsequent use of the fuel dispenser. Therefore, in view of this, the inventors have researched and improved the existing structure to provide a fuel filter installation structure for a fuel dispenser, aiming to achieve a more practical purpose. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an installation structure for the fuel filter element of a fuel dispenser. This structure can prevent the fuel filter element from being too complicated to install and remove quickly, thus affecting the subsequent use of the fuel dispenser.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] An installation structure for a fuel filter element in a fuel dispenser includes a protective outer shell, inside which the filter element body is installed, and a sealing cover is provided on the top of the protective outer shell. A fixing rod is fixedly connected to the bottom of the inner part of the protective outer shell, a spring is provided on the outer side of the fixing rod, and a screw is fixedly connected to the top of the fixing rod. A skeleton oil seal is installed above the spring, a sealing sleeve is fixedly provided on the inner side of the sealing cover, and a skeleton oil seal is installed below the sealing sleeve. A hexagonal limit button is threaded to the top of the screw. An oil inlet pipe and an oil outlet pipe are fixedly connected to the upper two sides of the sealing cover, respectively. A flange first and a flange second are threadedly connected to one side of the oil inlet pipe and the oil outlet pipe, respectively. A metal gasket first is provided on one side of the skeleton oil seal first, and a metal gasket second is provided on one side of the skeleton oil seal second.
[0009] Furthermore, both the protective shell and the sealing cover are made of stainless steel, and a sealing ring is provided at the connection between the protective shell and the sealing cover.
[0010] Furthermore, the first flange and the second flange have the same structure and are symmetrically arranged on both sides above the sealing cover.
[0011] Furthermore, the oil inlet pipe and the oil outlet pipe are of the same length, and the oil inlet pipe and the oil outlet pipe are respectively connected to the sealing cap.
[0012] Furthermore, the inner side of the hexagonal limit button is provided with a threaded groove, which is threadedly connected to the screw.
[0013] Furthermore, the screw passes through the skeleton oil seal and the sealing sleeve from bottom to top and is connected to the hexagonal limit button.
[0014] Furthermore, the dimensions of the first and second skeleton oil seals are adapted to the dimensions of the filter element body.
[0015] 3. Beneficial Effects
[0016] Compared with existing technologies, the advantages of this utility model are:
[0017] This solution uses a fixing rod to securely connect the filter element to the bottom of the protective housing. When installing the filter element body, first place the spring on the outside of the fixing rod, then place the first metal gasket on top of the spring, and then place the first skeleton oil seal on top of the first metal gasket. Lift the filter element body and place it directly above the first skeleton oil seal, moving it downwards until the first skeleton oil seal aligns with the bottom of the filter element body. Finally, lift the sealing cap so that the second skeleton oil seal on the sealing sleeve aligns with the top of the filter element body. At this point, hold the protective housing and rotate it to allow the screw to pass through the sealing sleeve. Then tighten the hexagonal limit button to connect the protective housing and the sealing cap. This filter element installation structure is simple and clear, allowing for quick installation and removal without affecting the subsequent use of the fuel dispenser. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the filter element body of this utility model;
[0020] Figure 3 This is a schematic diagram of the interior of the filter element of this utility model;
[0021] Figure 4 This is a schematic diagram of the installation structure of this utility model.
[0022] Explanation of the labels in the diagram:
[0023] 1. Protective outer casing; 2. Sealing cover; 3. Flange 1; 4. Flange 2; 5. Oil outlet pipe; 6. Oil inlet pipe; 7. Hexagonal limit button; 8. Filter element body; 9. Fixing rod; 10. Spring; 11. Screw; 12. Skeleton oil seal 1; 13. Skeleton oil seal 2; 14. Metal gasket 1. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0025] Example:
[0026] Please see Figure 1-4 An installation structure for a fuel filter element in a fuel dispenser includes a protective housing 1. Inside the protective housing 1, a filter element body 8 is installed. The filter element body 8 filters water and impurities from the fuel. A sealing cap 2 is located on the top of the protective housing 1, and the sealing cap 2 and a sealing strip are used to increase the sealing performance. A fixing rod 9 is fixedly connected to the bottom of the interior of the protective housing 1. A spring 10 is located on the outside of the fixing rod 9, and the spring 10 is used to cooperate with a skeleton oil seal 12 to install the filter element body 8. A screw 11 is fixedly connected to the top of the fixing rod 9, and the screw 11 is used to cooperate with a hexagonal limit button 7 to install the sealing cap 2. A skeleton oil seal 12 is installed above the spring 10. A sealing sleeve is fixedly provided inside the sealing cap 2, and a skeleton oil seal 23 is installed below the sealing sleeve. Skeleton oil seals 12 and 23 are used to increase the sealing performance of the filter element body 8. A hexagonal limit button 7 is threaded to the top of the screw 11, and the hexagonal limit button 7 is used to limit the sealing cap 2. An inlet pipe 6 and an outlet pipe 5 are fixedly connected to the upper two sides of the sealing cap 2, respectively, for fuel to enter and exit the filter element body 8. A flange 3 and a flange 4 are threadedly connected to one side of the inlet pipe 6 and the outlet pipe 5, respectively, for connecting to external fuel pipelines. A metal gasket 14 is provided on one side of the skeleton oil seal 12, and a metal gasket 2 is provided on one side of the skeleton oil seal 13. Metal gaskets 14 and 2 are used to assist in the installation of the filter element body 8.
[0027] See Figure 1 Both the protective housing 1 and the sealing cover 2 are made of stainless steel, and a sealing ring is provided at the connection between the protective housing 1 and the sealing cover 2. By using the protective housing 1 and the sealing cover 2 made of stainless steel, the service life of the filter element installation structure can be extended.
[0028] See Figure 1Flange 3 and flange 4 have the same structure and are symmetrically arranged on both sides above the sealing cover 2. External oil pipelines can be connected by setting flange 3 and flange 4.
[0029] See Figure 1 The oil inlet pipe 6 and the oil outlet pipe 5 have the same length, and the oil inlet pipe 6 and the oil outlet pipe 5 are respectively connected to the sealing cover 2. By setting the oil inlet pipe 6 and the oil outlet pipe 5, it is easy for fuel to enter and exit the filter element body 8.
[0030] See Figure 1 and Figure 3 The inner side of the hexagonal limit button 7 is provided with a threaded groove, which is threadedly connected to the screw 11. The threaded groove facilitates the insertion of the screw 11.
[0031] See Figure 3 and Figure 4 The screw 11 passes through the skeleton oil seal 13 and the sealing sleeve from bottom to top and is connected to the hexagonal limit button 7. By setting the screw 11, the sealing cover 2 can be installed in conjunction with the hexagonal limit button 7.
[0032] See Figure 3 and Figure 4 The dimensions of the first oil seal 12 and the second oil seal 13 are adapted to the dimensions of the filter element body 8. By setting the first oil seal 12 and the second oil seal 13, the sealing performance of the filter element body 8 can be increased.
[0033] In use: First, place the spring 10 on the outside of the fixing rod 9. Then, place the metal gasket 14 on top of the spring 10. Next, place the skeleton oil seal 12 on top of the metal gasket 14. Pick up the filter element body 8 and place it directly above the skeleton oil seal 12. Move it downwards so that the skeleton oil seal 12 corresponds to the bottom of the filter element body 8. Finally, pick up the sealing cover 2 so that the skeleton oil seal 13 on the sealing sleeve corresponds to the upper part of the filter element body 8. At this time, hold the protective shell 1 and rotate it so that the screw 11 passes through the sealing sleeve. Then tighten the hexagonal limit button 7 to connect the protective shell 1 and the sealing cover 2. The filter element installation structure is simple and clear, and the filter element can be quickly disassembled and assembled without affecting the subsequent use of the fuel dispenser.
[0034] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A structure for installing a fuel filter cartridge of a fuel dispenser, comprising a protective casing (1) having a filter cartridge body (8) installed inside, and a sealing cover (2) provided on the top of the protective casing (1), characterized in that: The inner bottom of the protective shell (1) is fixedly connected with a fixing rod (9), the outer side of the fixing rod (9) is provided with a spring (10), the upper side of the fixing rod (9) is fixedly connected with a screw rod (11), the upper side of the spring (10) is mounted with a skeleton oil seal one (12), the inner side of the sealing cover (2) is fixedly provided with a sealing sleeve, the lower side of the sealing sleeve is mounted with a skeleton oil seal two (13), the top of the screw rod (11) is threadedly connected with a hexagonal limiting knob (7), the upper sides of the sealing cover (2) are respectively fixedly connected with an oil inlet pipe (6) and an oil outlet pipe (5), the sides of the oil inlet pipe (6) and the oil outlet pipe (5) are respectively threadedly connected with a flange plate one (3) and a flange plate two (4), the side of the skeleton oil seal one (12) is provided with a metal gasket one (14), the side of the skeleton oil seal two (13) is provided with a metal gasket two.
2. The installation structure of a fuel filter cartridge for a fuel dispenser according to claim 1, characterized by: The protective shell (1) and the sealing cover (2) are made of stainless steel material, and the connecting part of the protective shell (1) and the sealing cover (2) is provided with a sealing ring.
3. The installation structure of a fuel filter cartridge for a fuel dispenser according to claim 1, characterized by: The flange plate one (3) and the flange plate two (4) are consistent in structure and are symmetrically arranged above the two sides of the sealing cover (2).
4. The fuel dispenser fuel filter cartridge mounting structure of claim 1, wherein: The oil inlet pipe (6) and the oil outlet pipe (5) are consistent in length, and the oil inlet pipe (6) and the oil outlet pipe (5) are respectively connected with the sealing cover (2).
5. The fuel dispenser fuel filter cartridge mounting structure of claim 1, wherein: The inner side of the hexagonal limiting knob (7) is provided with a threaded groove, and the threaded groove is threadedly connected with the screw rod (11).
6. The fuel dispenser fuel filter cartridge mounting structure of claim 1, wherein: The screw rod (11) penetrates the skeleton oil seal two (13) and the sealing sleeve from bottom to top and is connected with the hexagonal limiting knob (7).
7. The fuel dispenser fuel filter cartridge mounting structure of claim 1, wherein: The sizes of the skeleton oil seal one (12) and the skeleton oil seal two (13) are adapted to the size of the filter core body (8).