Portable oil filter with clamping column type drain valve

Abstract

A portable oil filter with a clamping column type drain valve comprises an upper cover base, the lower end of the upper cover base is connected with a lower cover, a filter element assembly is arranged in the lower cover, an oil inlet hole and an oil outlet hole are formed in the upper cover base, an oil discharge nozzle pipeline is arranged at the bottom of the lower cover, and a rectangular hole is formed in the upper end of the oil discharge nozzle pipeline. An L-shaped clamping groove is formed in the side wall of the lower end of the oil nozzle pipeline; a clamping column type drain valve is arranged in the oil discharge nozzle pipeline, the clamping column type drain valve comprises a rectangular clamping bolt, a prismatic table-shaped orientation column, a cylinder and a handle which are sequentially connected from top to bottom, the cylinder is sleeved with a sealing ring, clamping columns are arranged on the portion, below the sealing ring, of the cylinder, and the number and the position of the clamping columns correspond to the number and the position of the L-shaped clamping grooves respectively; the long side of the rectangular clamping bolt is perpendicular to the long side of the rectangular hole, and the clamping column is arranged in the L-shaped clamping groove. The clamping column type drain valve is simple in structure and easy to manufacture and produce, production, manufacturing and material cost is saved, the clamping column type drain valve is convenient to operate, and the filter element assembly is convenient to replace and install.

Description

Technical Field

[0001] This invention relates to the field of physics, and more particularly to filtration devices, especially a lightweight oil filter with a plunger-type drain valve. Background Technology

[0002] In an engine's fuel supply system, maintaining the cleanliness of the fuel line is crucial, directly impacting the engine's lifespan and power performance. To ensure the cleanliness of the supplied fuel, various functional oil filters are installed in the fuel system to continuously guarantee the cleanliness of the fuel entering the engine's working chamber and related components. However, existing oil filters feature overly complex oil and water drainage structures, resulting in high manufacturing costs, cumbersome operation, and inefficient replacement and installation. Summary of the Invention

[0003] The purpose of this invention is to provide a lightweight oil filter with a retaining valve, which solves the technical problems of complex oil drain structure, cumbersome operation, and low replacement and installation efficiency in the prior art.

[0004] The present invention provides a portable oil filter with a retaining valve, comprising an upper cover base, a lower cover connected to the lower end of the upper cover base, a filter element assembly disposed in the lower cover, an oil inlet and an oil outlet on the upper cover base, an oil drain pipe disposed at the bottom of the lower cover, a rectangular hole disposed at the upper end of the oil drain pipe, the length of the long side and the width side of the rectangular hole being smaller than the inner diameter of the oil drain pipe, and at least one L-shaped retaining groove disposed circumferentially at intervals in the lower side wall of the oil drain pipe.

[0005] The drain pipe is equipped with a pin-type drain valve. The pin-type drain valve includes a rectangular pin, a frustum-shaped directional pin, a cylinder and a handle connected from top to bottom. A sealing ring is fitted on the cylinder. Pins are arranged radially below the sealing ring on the cylinder. The number and position of the pins correspond to the number and position of the L-shaped slots.

[0006] The rectangular latch is located on the upper side of the rectangular hole, with the long side of the rectangular latch perpendicular to the long side of the rectangular hole. The frustum-shaped directional post is located in the rectangular hole, the locking post is located in the L-shaped locking groove, and the handle is located below the oil drain pipe.

[0007] Preferably, the number of L-shaped card slots is two.

[0008] Preferably, the inner side of the upper cover base is provided with an internal thread, and the outer side of the lower cover is provided with an external thread that mates with the internal thread.

[0009] Preferably, the outer side of the lower cover is provided with a sealing groove, and a sealing element is installed in the sealing groove. The sealing element is disposed between the lower cover and the upper cover base.

[0010] Preferably, an oil outlet central pipe is provided in the center of the inner cavity of the upper cover base, and a limiting rib for fixing the filter element assembly is provided on the outer side of the oil outlet central pipe.

[0011] Preferably, the filter element assembly includes a central frame and filter paper, with the filter paper sleeved on the outside of the central frame. The central frame has annular ribs, and a safety valve assembly is provided at the bottom of the central frame. The safety valve assembly has several buckles arranged circumferentially on its upper side, and the buckles engage with the annular ribs.

[0012] Preferably, a spring is provided between the bottom of the filter element assembly and the bottom of the lower cover, and an annular positioning rib is provided at the bottom of the cavity of the lower cover, with the spring disposed in the annular positioning rib.

[0013] Compared with existing technologies, the advantages of this invention are positive and significant. This invention provides a lightweight oil filter with a snap-fit ​​drain valve, which has a simple structure, is easy to manufacture, saves on production and material costs, and features convenient operation of the snap-fit ​​drain valve and easy replacement and installation of the filter element assembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram showing the normal operating flow of a lightweight oil filter with a retaining valve according to the present invention.

[0015] Figure 2 This is a schematic diagram showing the flow direction of the filter element in a lightweight oil filter with a retaining valve of the present invention after the filter element has reached the end of its clogging life, which roughly causes the safety valve to be opened due to the pressure in the chamber.

[0016] Figure 3 This is a schematic diagram showing the flow direction of a lightweight oil filter with a retaining valve before filter element replacement, according to the present invention, in the state of draining or draining oil.

[0017] Figure 4 This is a first exploded view of a portable oil filter with a retaining valve according to the present invention.

[0018] Figure 5 This is a second exploded view of a portable oil filter with a retaining valve according to the present invention.

[0019] Figure 6 This is a schematic diagram of the sealing groove and sealing element in a lightweight oil filter with a retaining column drain valve according to the present invention.

[0020] Figure 7 This is an exploded view of the filter element and the upper cover base in a lightweight oil filter with a retaining valve according to the present invention.

[0021] Figure 8This is an exploded view of the safety valve and filter element in a lightweight oil filter with a retaining valve according to the present invention.

[0022] Figure 9 This is a schematic diagram of the inner cavity of the lower cover in a portable oil filter with a retaining valve according to the present invention.

[0023] Figure 10 This is an exploded view of the lower cover and the retaining drain valve in a lightweight oil filter with a retaining drain valve according to the present invention.

[0024] Figure 11 This is a schematic diagram of the retaining drain valve in a portable oil filter with a retaining drain valve according to the present invention.

[0025] Figure 12 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0026] Figure 13 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0027] Figure 14 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0028] Figure 15 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0029] Figure 16 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0030] Figure 17 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0031] Figure 18 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0032] Figure 19 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0033] Figure 20 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0034] Figure 21This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0035] Figure 22 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0036] Figure 23 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0037] Figure 24 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0038] Figure 25 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention.

[0039] Figure 26 This is a schematic diagram illustrating the installation and replacement process of the filter element assembly of a lightweight oil filter with a retaining valve according to the present invention. Detailed Implementation

[0040] The present invention will be further described below with reference to embodiments, but the present invention is not limited to these embodiments. Any similar variations of the present invention should be included within the scope of protection of the present invention. The directional terms such as up, down, front, back, left, right, center, inside, and outside in the present invention are defined based on the directions shown in the accompanying drawings. The use of directional terms is only for the convenience of clear description and is not a limitation on the technical solution.

[0041] like Figures 1-26 As shown, the present invention provides a portable oil filter with a retaining valve, comprising an upper cover base 1, a lower cover 6 connected to the lower end of the upper cover base 1, a filter element assembly 2 disposed in the lower cover 6, and an oil inlet and an oil outlet provided on the upper cover base 1, as shown. Figure 9 As shown, the bottom of the lower cover 6 is provided with an oil drain pipe 64, and the upper end of the oil drain pipe 64 is provided with a rectangular hole 65. The length of both the long side and the width of the rectangular hole 65 are smaller than the inner diameter of the oil drain pipe 64. Figure 10 As shown, at least one L-shaped groove 66 is provided circumferentially at intervals in the lower end side wall of the oil drain pipe 64;

[0042] like Figure 11As shown, a pin-type drain valve 7 is provided in the oil drain pipe 64. The pin-type drain valve 7 includes a rectangular pin 71, a frustum-shaped directional pin 72, a cylinder 76 and a handle 75 connected from top to bottom. A sealing ring 73 is fitted on the cylinder 76. Pins 74 are arranged radially below the sealing ring 73 on the cylinder 76. The number and position of the pins 74 correspond to the number and position of the L-shaped slots 66.

[0043] like Figure 1 , Figure 24 , Figure 25 , Figure 26 As shown, the rectangular latch 71 is disposed on the upper side of the rectangular hole 65, and the long side of the rectangular latch 71 is perpendicular to the long side of the rectangular hole 65. The frustum-shaped directional post 72 is disposed in the rectangular hole 65, the latch 74 is disposed in the L-shaped slot 66, and the handle 75 is disposed below the oil drain pipe 64.

[0044] Preferably, there are two L-shaped card slots 66.

[0045] Preferably, the inner side of the upper cover base 1 is provided with an internal thread 11, and the outer side of the lower cover 6 is provided with an external thread 61 that mates with the internal thread 11.

[0046] Preferably, the outer side of the lower cover 6 is provided with a sealing groove 62, and a sealing element 5 is installed in the sealing groove 62. The sealing element 5 is disposed between the lower cover 6 and the upper cover base 11.

[0047] Preferred, such as Figure 7 As shown, an oil outlet central pipe 12 is provided in the center of the inner cavity of the upper cover base 1, and a limiting rib 13 for fixing the filter element assembly 2 is provided on the outer side of the oil outlet central pipe 12.

[0048] Preferred, such as Figure 8 As shown, the filter element assembly 2 includes a central frame 22 and filter paper 21. The filter paper 21 is sleeved on the outside of the central frame 22. The central frame 22 is provided with annular ribs 23. The bottom of the central frame 22 is provided with a safety valve assembly 3. Several buckles 31 are provided on the safety valve assembly 3 along the circumferential direction. The buckles 31 are engaged with the annular ribs 23.

[0049] Preferably, a spring 4 is provided between the bottom of the filter element assembly 2 and the bottom of the lower cover 6, and an annular positioning rib 63 is provided at the bottom of the cavity of the lower cover 6, with the spring 4 disposed in the annular positioning rib 63.

[0050] All parts not described in detail in this invention are based on existing technologies and will not be elaborated upon here.

[0051] Filter cartridge installation process:

[0052] (1) As Figure 12 , Figure 13 As shown, the safety valve assembly 3 is axially aligned and snapped onto the bottom of the filter element assembly 2.

[0053] (2) such as Figure 14 , Figure 15 As shown, the filter element assembly 2 is installed into the cavity of the upper cover base 1 with axial alignment.

[0054] (3) such as Figure 16 , Figure 17 As shown, the sealing element 5 is axially aligned and installed into the sealing groove 62 of the lower cover 6, and the spring 4 is axially aligned and placed in the middle of the annular positioning rib 63 at the bottom of the cavity of the lower cover 6.

[0055] (4) such as Figure 18 , Figure 19 As shown, align the lower cover 6 axially and rotate it clockwise to tighten it onto the upper cover base 1.

[0056] (5) such as Figure 20 , Figure 21 , Figure 22 As shown, the plunger-type drain valve 7 is installed into the drain pipe 64, with the plunger 74 aligned with the L-shaped groove 66. At this time, the bolt 71 passes through the rectangular hole 65, and the long side of the bolt 71 is parallel to the long side of the rectangular hole 65. The plunger-type drain valve 7 is in a pull-out, unlocked state.

[0057] (6) For example Figure 23 , Figure 24 , Figure 25 , Figure 26 As shown, rotate the handle 75 clockwise by 90° so that the locking pin 74 is engaged in the L-shaped slot 66. At this time, the long side of the locking bolt 71 is perpendicular to the long side of the drain hole 65, and the locking pin drain valve 7 is in a locked state that cannot be pulled out. At the same time, the frustum-shaped directional pin 72 is engaged in the rectangular hole 65, limiting the direction of the locking pin drain valve 7, so that the locking pin drain valve 7 cannot rotate freely. The installation is complete.

[0058] Filter replacement process:

[0059] a. First, rotate the handle 75 counterclockwise 90° to pull out the plunger drain valve 7 and drain the oil or water from the lower cover 6 cavity. Then, rotate counterclockwise to remove the lower cover 6 and take out the filter element assembly 2. Remove the safety valve assembly 3 from the bottom of the filter element assembly 2.

[0060] b. Then install the new filter element assembly 2 according to the filter element installation process described above.

[0061] Material description:

[0062] Top cover base 1: High-strength, oil-resistant, water-resistant, and high / low temperature resistant engineering plastic.

[0063] Filter element assembly 2: The upper and lower covers and the central frame 22 are made of high-strength, oil-resistant, water-resistant, and high- and low-temperature resistant engineering plastics. The filter paper 21 is corrugated filter paper and is made of environmentally friendly new resin fiber with high precision filtration efficiency and high dust holding capacity.

[0064] Safety valve assembly 3: The valve body is a metal sheet, the spring is a spring steel wire, and the valve seat is a high-strength, oil-resistant, water-resistant, and high- and low-temperature-resistant engineering plastic.

[0065] Spring 4: Spring steel wire.

[0066] Sealing element 5: Oil-resistant, water-resistant, and high / low temperature resistant rubber, such as NBR and AEM.

[0067] Bottom cover 6: High-strength, oil-resistant, water-resistant, and high / low temperature resistant engineering plastic.

[0068] 7. The 7.0 type drain valve is made of high-strength, oil-resistant, water-resistant, and high- and low-temperature resistant elastic engineering plastic. The sealing ring 73 is made of oil-resistant, water-resistant, and high- and low-temperature resistant rubber, such as NBR and AEM.

[0069] The present invention provides a lightweight oil filter with a retaining drain valve, which has a simple structure, is easy to manufacture, saves on production and material costs, and the retaining drain valve 7 is easy to operate and the filter element assembly 2 is easy to replace and install.

Claims

1. A portable oil filter with a retaining valve, characterized in that, Includes an upper cover base, with a lower cover connected to the lower end of the upper cover base. A filter element assembly is installed in the lower cover. An oil inlet and an oil outlet are provided on the upper cover base. An oil drain pipe is provided at the bottom of the lower cover. A rectangular hole is provided at the upper end of the oil drain pipe. The length of both the long and wide sides of the rectangular hole is smaller than the inner diameter of the oil drain pipe. At least one L-shaped groove is provided at circumferential intervals in the lower side wall of the oil drain pipe. The drain pipe is equipped with a pin-type drain valve. The pin-type drain valve includes a rectangular pin, a frustum-shaped directional pin, a cylinder and a handle connected from top to bottom. A sealing ring is fitted on the cylinder. Pins are arranged radially below the sealing ring on the cylinder. The number and position of the pins correspond to the number and position of the L-shaped slots. The rectangular latch is located on the upper side of the rectangular hole, with the long side of the rectangular latch perpendicular to the long side of the rectangular hole. The frustum-shaped directional post is located in the rectangular hole, the locking post is located in the L-shaped locking groove, and the handle is located below the oil drain pipe.

2. The portable oil filter with a retaining valve as described in claim 1, characterized in that, The number of L-shaped card slots is two.

3. The portable oil filter with a retaining valve according to claim 1, characterized in that, The upper cover base has an internal thread on its inner side, and the lower cover has an external thread on its outer side that mates with the internal thread.

4. The portable oil filter with a retaining valve as described in claim 1, characterized in that, The lower cover has a sealing groove on its outer side, and a sealing element is installed in the sealing groove. The sealing element is located between the lower cover and the upper cover base.

5. A portable oil filter with a retaining valve as described in claim 1, characterized in that, The inner cavity of the upper cover base is provided with an oil outlet central pipe, and the outer side of the oil outlet central pipe is provided with a limiting rib for fixing the filter element assembly.

6. A portable oil filter with a retaining valve as described in claim 1, characterized in that, The filter element assembly includes a central frame and filter paper. The filter paper is sleeved on the outside of the central frame. The central frame has annular ribs. A safety valve assembly is provided at the bottom of the central frame. Several buckles are provided along the circumferential direction on the safety valve assembly. The buckles are engaged with the annular ribs.

7. A portable oil filter with a retaining valve as described in claim 1, characterized in that, A spring is provided between the bottom of the filter element assembly and the bottom of the lower cover, and an annular positioning rib is provided at the bottom of the cavity of the lower cover, with the spring disposed in the annular positioning rib.

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