Extractor for lubricating oil filter element assembly of engine fuel regulator

Abstract

The utility model discloses an engine fuel regulator lubricating oil filter element assembly extractor which comprises a rotating head, a support, a connecting rod, a sleeve, a pin rod and a limiting piece, a threaded hole is formed in the top of the support, the connecting rod penetrates through the threaded hole to be vertically installed on the support, the rotating head is located at the upper end of the connecting rod, and a through hole is formed in the top of the sleeve. The lower end of the connecting rod penetrates through the through hole and then is connected with the limiting piece, so that the sleeve is rotatably installed on the inner side of the support. An opening is formed in the bottom of the sleeve, and a semicircular convex edge is arranged on the inner side of the opening and used for being clamped and matched with a circular structure on the lubricating oil filter element. The extractor disclosed by the utility model is convenient to operate, safe and reliable, can complete the disassembly of the lubricating oil filter element with one hand in a non-visual manner, can greatly improve the working efficiency, saves manpower and material resources, avoids the damage of a filter element assembly, the influence on the use of an engine and the property loss caused by the disassembly operation, is high in safety coefficient, and cannot cause personnel injury.

Description

TECHNICAL FIELD

[0001] The utility model belongs to engine fuel equipment maintenance technical field especially, relate to a kind of engine fuel regulator oil filter element assembly extractor. BACKGROUND

[0002] Large transport helicopters usually need to be equipped with multiple engines, and after a certain period of use, regular inspection and maintenance are required to ensure the reliability of the engine. The regular inspection and maintenance cycle is determined by the engine operating hours. When engine routine maintenance and fuel regulator fail, the fuel regulator oil filter element assembly needs to be disassembled for inspection. The fuel regulator oil filter is located on one side of the bottom of the engine, and the filter element assembly is sealed with an O-ring between the oil filter. There is a screw on the outside to fix it, and the filter element assembly is combined tightly with the oil filter. When disassembling, the fixing screw of the filter element assembly cannot be directly removed by hand. Since there is no special tool for disassembly, the existing method is to use a tool to push against the filter element assembly and rotate it to expose the screw hole, then use a wire to bundle the filter element assembly screw hole and pull it out. This method has the following disadvantages: (1) It is not easy to operate, and the filter element assembly is extremely inconvenient to disassemble. Due to the small space between the engine and the helicopter body after installation, especially when disassembling the filter element assembly of the first engine, visual operation is not possible, and only one-handed groping disassembly can be performed. After removing the filter element assembly fixing screw, use a tool to push against the filter element assembly fixing screw hole edge, when the screw hole is exposed, use a wire to pass through the screw hole, then pull the wire down to take out the filter element assembly. The disassembly operation is extremely inconvenient. (2) Low work efficiency, disassembly operation is uncontrollable. Since there is no special tool for disassembly, the worker relies solely on hand feeling, and disassembly cannot be visually observed, which often takes a long time. (3) High risk of personal safety and property loss. Since only a small diameter wire can be used (a large diameter wire cannot pass through the screw hole), the filter screen is easily damaged when pulling out the wire. When pulling, the operation is done in a small space, and since the force cannot be applied evenly, the worker's hand is easily injured when the filter element assembly suddenly comes out of the oil filter housing. Since the direction of the force does not match the installation direction of the filter element assembly, the filter screen is easily scratched when the filter element assembly suddenly comes out of the oil filter housing, causing the filter element assembly to be scrapped. Since this filter element assembly is not consumable, users generally do not have inventory. Once the filter element assembly is scrapped, the manufacturer often needs to provide spare parts, and during this period, the engine cannot be used normally, which seriously affects the availability of the helicopter. SUMMARY

[0003] The utility model solves the technical problems of the prior art and provides an engine fuel regulator oil filter element assembly extractor that is simple in structure, easy to use, safe and reliable.

[0004] To solve the above technical problems, the utility model adopts the technical scheme that:

[0005] A engine fuel regulator oil filter element assembly extractor, including rotating head, support, connecting rod, sleeve, pin rod and stop piece, the support top is equipped with screw hole, the connecting rod passes through the screw hole vertical installation on the support, the rotating head is located the connecting rod upper end, the sleeve top is equipped with through -hole, the connecting rod lower extreme passes through the through -hole and is connected with stop piece, make the sleeve rotatablely installed in the inside of support, the stop piece is used to prevent the sleeve from sliding off the connecting rod lower extreme, the sleeve bottom opening, the inside of opening is equipped with semicircle arc convex edge, for with the round structure on the oil filter element clamping cooperation.

[0006] The engine fuel regulator oil filter element assembly extractor, preferably, the stop piece includes a pin rod, the connecting rod is provided with a pin hole, the pin rod is arranged in the pin hole, and the length of the pin rod is greater than the diameter of the through hole.

[0007] The engine fuel regulator oil filter element assembly extractor, preferably, the stop piece further includes a stop block, and the stop block is fixed to the lower end of the connecting rod by the pin rod.

[0008] The engine fuel regulator oil filter element assembly extractor, preferably, a process hole is formed in the side wall of the sleeve, and the process hole serves as an assembly hole for assembling the pin rod into the pin hole.

[0009] The engine fuel regulator oil filter element assembly extractor, preferably, the pin hole is a circular pin hole, and the pin rod is a cylindrical pin rod.

[0010] The engine fuel regulator oil filter element assembly extractor, preferably, the rotating head is a knurled nut.

[0011] The engine fuel regulator oil filter element assembly extractor, preferably, the support is a door-shaped support, the two legs of the support are in arc-shaped structure, and the inner diameter of the circle enclosed by the two arc-shaped structures is 1.5-2 mm larger than the outer diameter of the outer circular structure of the filter element.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] (1) When the engine of a helicopter is subjected to a routine inspection or troubleshooting, etc., the oil regulator oil filter cartridge assembly needs to be disassembled for inspection and cleaning. Since there is no special tool for disassembly, the relative space between the engine and the helicopter body is small after the engine is installed, the filter cartridge assembly is inconvenient to disassemble, the filter cartridge assembly is tightly combined with the oil filter, and there is no force point, which causes the technical problems of difficult disassembly of the filter cartridge assembly and easy damage. The utility model provides a kind of special tool for disassembly, which is convenient, safe and reliable. The operator can quickly and stably fix the tool outside the filter cartridge, and can conveniently and quickly complete the oil filter cartridge disassembly work with one hand without visual inspection, which can greatly improve work efficiency, save manpower and material resources, and will not damage the filter cartridge assembly due to disassembly operation, affect engine use and cause property loss.

[0014] (2) The extractor of the utility model reliably connects the rotating head and the sleeve together through the connecting rod, the lower end of the connecting rod is fixedly connected with the limiting piece by penetrating the through hole in the top of the sleeve, and the sleeve can be adjusted at any angle relative to the connecting rod. The semicircular convex edge inside the opening at the lower end of the sleeve can be sleeved into the circular structure point on the filter cartridge, and will not fall off after tightening the connecting rod. Rotation makes the sleeve close to the filter cartridge and adjust the angle of the sleeve relative to the connecting rod to make the semicircular convex edge clamp the circular structure point on the filter cartridge, and the sleeve and the connecting rod are connected through the limiting piece. Thus, the sleeve fixed with the filter cartridge is lightly separated from the oil filter shell by rotating the rotating head to drive the sleeve. In the process of disassembling the oil filter cartridge, the filter cartridge assembly is stably fixed to the opening end of the sleeve of the extractor, which effectively avoids the damage of the filter screen caused by the scraping of the filter cartridge assembly and the oil filter shell, prevents the occurrence of the situation that the filter cartridge assembly is scrapped, avoids property loss, and has high economic value.

[0015] (3) Compared with the existing metal wire pulling and disassembling mode, the utility model has high safety factor when in use, and will not cause personnel injury and other adverse consequences. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the structure schematic view of the engine fuel regulator oil filter cartridge assembly extractor of the specific embodiment of the utility model.

[0017] Figure 2 It is the structure schematic view of the engine fuel regulator oil filter cartridge assembly extractor of the specific embodiment of the utility model.

[0018] Figure 3 It is the structure schematic view of the specific embodiment of the utility model.

[0019] Figure 4 It is the sectional view of the specific embodiment of the utility model.

[0020] Figure 5 It is the bottom view of the sleeve in the specific embodiment of the utility model.

[0021] Figure 6 Figure 2 is a partial sectional view of the sleeve of the embodiment of the present application.

[0022] Legend: 1, rotating head; 2, bracket; 21, threaded hole; 22, arc structure; 3, connecting rod; 31, pin hole; 4, sleeve; 41, through hole; 42, semicircular convex edge; 43, process hole; 5, limiting piece; 51, pin rod; 52, stop block. DETAILED DESCRIPTION

[0023] The present application is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present application is not limited thereby.

[0024] Figures 1 to 6 An embodiment of the engine fuel regulator oil filter element extractor of the present application is shown, comprising a rotating head 1, a bracket 2, a connecting rod 3, a sleeve 4 and a limiting piece 5, the bracket 2 is provided with a threaded hole 21 at the top, the connecting rod 3 is vertically installed on the bracket 2 through the threaded hole 21, the rotating head 1 is located at the upper end of the connecting rod 3, the sleeve 4 is provided with a through hole 41 at the top, the lower end of the connecting rod 3 is connected with the limiting piece 5 after passing through the through hole 41, so that the sleeve 4 is rotatably installed inside the bracket 2, and the limiting piece 5 is used to prevent the sleeve 4 from sliding off the lower end of the connecting rod 3; the bottom of the sleeve 4 is open, and the inside of the opening is provided with a semicircular convex edge 42, which is used to tightly fit with the circular structure on the oil filter element.

[0025] The use method is as follows: the bracket 2 of the extractor is sleeved outside the oil filter element, the operator rotates the connecting rod 3 by screwing the rotating head 1, adjusts the vertical distance between the sleeve 4 and the filter element, and then rotates the sleeve 4 to make the semicircular convex edge 42 inside the opening end of the sleeve 4 sleeve the circular structure point on the oil filter element, and slightly rotates the rotating head 1 by hand to check that the opening end convex edge of the sleeve 4 has been tightly fitted with the circular structure on the oil filter element, the rotating head 1 is rotated to make the limiting piece 5 abut against the inner top wall of the sleeve 4, thereby increasing the friction between the limiting piece 5 and the inner top wall of the sleeve 4, and making the sleeve 4 fixed relative to the connecting rod 3, so that the rotating head 1 can drive the sleeve 4 and the tightly fitted filter element through the connecting rod 3, and the oil filter element is separated from the oil filter shell.

[0026] The extractor of the embodiment reliably connects the rotating head 1 and the sleeve 4 together through the connecting rod 3, the lower end of the connecting rod 3 is fixedly connected with the limiting piece 5 by passing through the through hole 41 at the top of the sleeve 4, and the sleeve 4 can be adjusted at any angle relative to the connecting rod 3. Figure 5As shown, the semicircular convex edge 42 machined inside the lower end opening of the sleeve 4 can be sleeved into the circular structure point on the filter element, and will not fall off after tightening the connecting rod 3. Rotating the sleeve 4 and adjusting the angle of the sleeve 4 relative to the connecting rod 3 makes the semicircular convex edge 42 on the sleeve 4 tightly clamp the circular structure point on the filter element. Tightening the rotating head 1 increases the friction between the limiting block 5 and the inner top wall of the sleeve 4, so that the sleeve 4 cannot rotate on the connecting rod 3. Then, rotating the rotating head 1 drives the sleeve 4 to move, so that the filter element fixed by the sleeve 4 is easily separated from the oil filter housing. The extractor of the embodiment serves as a special tool for disassembling the oil filter element, which is convenient for single-handed operation. When in use, the filter element can be stably taken out from the installation direction of the filter element, and damage to the filter element can be avoided.

[0027] Further improvement, in the embodiment, the limiting member 5 includes a pin rod 51, and the connecting rod 3 is provided with a pin hole 31, and the pin rod 51 is arranged in the pin hole 31, and the length of the pin rod 51 is greater than the diameter of the through hole 41.

[0028] Further improvement, in the embodiment, the limiting member 5 further includes a stop block 52, and the stop block 52 is fixed to the lower end of the connecting rod 3 by the pin rod 51. That is, the stop block 52 is arranged at the lower end of the connecting rod 3, and the stop block 52 is also provided with a pin hole 31 corresponding to the position on the connecting rod 3. The limiting member 5 formed by the stop block 52 and the pin rod 51 can achieve better limiting purpose, and is convenient for processing and assembling.

[0029] Further improvement, as shown in the drawings, Figure 6 In the embodiment, the side wall of the sleeve 4 is provided with a process hole 43, which serves as an assembly hole for assembling the pin rod 51 into the pin hole 31, so that the assembly is more convenient. When assembling, the sleeve 4 and the stop block 52 are sequentially arranged at the lower part of the connecting rod 3, and then the pin rod 51 is driven into the stop block 52 through the process hole 43 on the side wall of the sleeve 4, which has a hole diameter greater than the pin rod 51, so as to connect the connecting rod 3 and the sleeve 4 together, and the pin rod 51 and the pin hole 31 are in interference fit. After the stop block 52 is fixed, the sleeve 4 cannot fall off from the connecting rod 3, and the sleeve 4 can rotate relative to the connecting rod 3.

[0030] Further improvement, in the embodiment, the pin hole 31 is a circular pin hole, and the pin rod 51 is a cylindrical pin rod. The circular pin hole and the cylindrical pin rod are more convenient for assembly.

[0031] Further improvement, in the embodiment, the rotating head 1 is a knurled nut.

[0032] Further improvement, as shown in the drawings, Figure 3 and Figure 4 In the embodiment, the bracket 2 is a door-shaped bracket 2, and the two legs of the bracket 2 are arc-shaped structures 22. The inner diameter of the circle enclosed by the two arc-shaped structures 22 is 2 mm larger than the outer diameter of the circular structure on the outer side of the filter element, so as to support the filter element and facilitate position adjustment. The diameter of the threaded hole 21 on the bracket 2 is 8 mm.

[0033] Although the utility model discloses the above with preferable embodiment, however not use to limit the utility model. Any familiar with the technical personnel of the field, without departing from the spiritual essence and technical scheme of the utility model, can utilize the method and technical content disclosed above to make many possible changes and modification to the utility model technical scheme, or modify as equivalent variation equivalent embodiment. Therefore, all the content that does not depart from the utility model technical scheme, according to the technical essence of the utility model, any simple modification, equivalent replacement, equivalent change and modification of the above embodiment, still belong to the range of the utility model technical scheme protection.

Claims

1. An engine fuel regulator lube filter cartridge assembly extractor characterized by, The device comprises a rotating head (1), a support (2), a connecting rod (3), a sleeve (4) and a limiting part (5). The support (2) is provided with a threaded hole (21) at the top. The connecting rod (3) is vertically installed on the support (2) through the threaded hole (21). The rotating head (1) is located at the upper end of the connecting rod (3). The sleeve (4) is provided with a through hole (41) at the top. The lower end of the connecting rod (3) is connected with the limiting part (5) after passing through the through hole (41), so that the sleeve (4) is rotatably installed inside the support (2). The limiting part (5) is used for preventing the sleeve (4) from sliding off the lower end of the connecting rod (3). The bottom of the sleeve (4) is open. The inside of the opening is provided with a semicircular convex edge (42) for clamping cooperation with the circular structure on the oil filter element.

2. The engine fuel regulator lube filter cartridge assembly extractor of claim 1, wherein, The limiting part (5) comprises a pin rod (51). The connecting rod (3) is provided with a pin hole (31). The pin rod (51) is arranged in the pin hole (31). The length of the pin rod (51) is greater than the diameter of the through hole (41).

3. The engine fuel regulator lube filter cartridge assembly extractor of claim 2 wherein, The limiting part (5) further comprises a stop block (52). The stop block (52) is fixed on the lower end of the connecting rod (3) by the pin rod (51).

4. The engine fuel regulator lube filter cartridge assembly extractor of claim 3, wherein, The sleeve (4) is provided with a process hole (43) on the side wall. The process hole (43) is used as an assembly hole for assembling the pin rod (51) into the pin hole (31).

5. The engine fuel regulator lube filter cartridge assembly extractor of claim 4, wherein, The pin hole (31) is a circular pin hole. The pin rod (51) is a cylindrical pin rod.

6. The engine fuel regulator oil filter cartridge assembly extractor of any one of claims 1-5, wherein, The rotating head (1) is a knurled nut.

7. An engine fuel regulator oil filter cartridge assembly extractor according to any one of claims 1 to 5 wherein, The support (2) is a door-shaped support. The two legs of the support (2) are arc-shaped structures (22). The inner diameter of the circle surrounded by the two arc-shaped structures (22) is 1.5-2 mm larger than the outer diameter of the external circular structure of the filter element.

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