Special tool for disassembling filter element cover of oil filter of pressure oil pump of speed regulator

By designing specialized tools for the clamping ring assembly and fasteners, the problem of difficult disassembly of the filter element cover of the pressure oil pump filter was solved, enabling safe and efficient disassembly by a single person, and reducing the risk of equipment and personal injury.

CN224088920UActive Publication Date: 2026-04-07SICHUAN JIALINGJIANG CANGXI AVIONICS DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The lack of specialized tools in the existing technology makes it difficult to disassemble the filter element cover of the pressure oil pump filter, which is easy to slip off and fall, posing a risk of equipment and personal injury, and requires two people to operate.

Method used

A specialized tool was designed, comprising a hoop assembly and fasteners. The hoop assembly consists of an arc-shaped hoop and reinforcing ribs, equipped with anti-slip pads and fasteners, enabling a secure grip on the filter cartridge cover and allowing for single-person operation via the rod and fasteners.

Benefits of technology

It improves the safety and convenience of filter cover disassembly, allows for single-person operation, reduces the dangers during disassembly, and improves maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a special tool for disassembling a filter element cover of an oil filter of a pressure oil pump of a speed regulator, which relates to the technical field of disassembly and maintenance of the filter element cover of the oil filter of the pressure oil pump of the speed regulator, and comprises two groups of shroud ring components, each shroud ring component comprises an arc-shaped hoop piece, and the outer surface of each hoop piece is also provided with a reinforcing rib plate extending outwards. A connecting plate is arranged at the free end of the reinforcing rib plate, and a through hole is formed in the connecting plate; the hoop ring assembly further comprises a fastener, the two hoop ring assemblies are oppositely arranged, and the fastener penetrates through the through holes in the connecting plates of the two hoop ring assemblies and is fixedly connected with the connecting plates of the two hoop ring assemblies.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field that speed regulator pressure oil pump filter oil device filter core cover dismounts and maintains, specifically, relate to a kind of special tool for speed regulator pressure oil pump filter oil device filter core cover dismounting. BACKGROUND

[0002] In the routine maintenance work of hydropower plant, pressure oil pump filter oil device filter core inspection maintenance is an important maintenance project, and it has short maintenance cycle, high frequency, and certain professional skill requirements for maintenance personnel. If improper operation during maintenance, it is extremely easy to cause filter core cover to fall off, resulting in equipment and personal injury.

[0003] As shown above, the filter core cover of the pressure oil pump filter oil device in the prior art has the following technical problems:

[0004] 1. Only wrench is used to dismount the filter core cover, without special tools for use:

[0005] 2. When dismounting the filter core cover, there is no place to grab, and the staff cannot remove the filter core cover safely, which is extremely easy to cause the filter core cover to fall off, resulting in equipment and personal injury.

[0006] 3. The weight of the removed filter core cover is large (15 kg) and easy to drop, and one person cannot remove it, but only two people can cooperate to hold it. INVENTION CONTENTS

[0007] The utility model aims to provide a special tool for dismounting the filter core cover of the speed regulator pressure oil pump filter oil device, to improve the convenience and safety of dismounting the filter core cover.

[0008] The utility model realizes the following technical scheme: two hoop assemblies are included, the hoop assembly includes an arc-shaped hoop, the outer surface of the hoop is further provided with an outwardly extending reinforcing rib plate, a connecting plate is provided at the free end of the reinforcing rib plate, and a through hole is formed in the connecting plate;

[0009] A fastener is further included, the two hoop assemblies are oppositely arranged, the fastener passes through the through holes in the connecting plates of the two hoop assemblies, and is fixedly connected.

[0010] In order to better realize the utility model, further, the inner surface of the hoop is further provided with a threaded groove, and an anti-skid pad is installed on the threaded groove.

[0011] For better implementation of the utility model, further, the anti-skid pad includes rubber pad surface and threaded insert placed in threaded groove, the threaded insert is arranged on one side of the rubber pad surface, the top and bottom of the rubber pad surface are all provided with recessed groove body inward, the recessed groove body is wrapped at the edge of the hoop piece, the recessed groove body and the threaded insert are all located on the same side.

[0012] For better implementation of the utility model, further, the outer surface of the hoop piece is provided with arc-shaped installation groove concave inward, the inner ring of the reinforcing rib plate is placed in the arc-shaped installation groove, the arc-shaped installation groove is located at the middle part of the outer surface of the hoop piece, so that the reinforcing rib plate is arranged at the middle part of the outer surface of the hoop piece.

[0013] For better implementation of the utility model, further, the reinforcing block is arranged between the hoop piece and the reinforcing rib plate, the reinforcing block is located at both sides of the reinforcing rib plate, and the reinforcing block has a plurality of reinforcing blocks.

[0014] For better implementation of the utility model, further, the bottom of the two ends of the hoop piece is provided with an L-shaped table groove, one end of the connecting plate is placed in the table groove, and the connecting plate and the bottom of the hoop piece are further provided with a connecting piece, so that the connecting plate and the hoop piece are fixedly connected.

[0015] For better implementation of the utility model, further, the reinforcing rib plate is provided with a mounting hole, a rod body is mounted through the mounting hole, the end of the rod body is in U shape, the mounting position thereof is opposite to the mounting hole, and the rod body has two rod bodies and is arranged at intervals.

[0016] The utility model discloses the beneficial effect is:

[0017] The utility model provides a special tool, its structure is simple, and the design is ingenious, combines the structure of pivot speed regulator pressure oil pump oil filter element cover, weight, stress point and moment, rotation radius area, fixed mode, convenient use and actual need etc. factor, after comprehensive consideration, designs, makes the special tool of disassembly, solves the problem of no handgrip easy to slip when disassembling the filter element cover. The special tool is convenient and safe to assemble and use, and one person can operate, which improves the maintenance work efficiency and safety reliability. It is extremely practical, and the market application effect is excellent. ACCURACY OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the utility model, the following will be briefly introduced to the drawings needed to be used in the utility model, it should be understood, the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the range, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0019] Figure 1 The structure schematic diagram of the special tool for disassembling is provided in the utility model;

[0020] Figure 2 The structure schematic diagram of the hoop piece and the reinforcing rib plate is provided in the utility model;

[0021] Figure 3 The structure schematic diagram of the hoop piece is provided in the utility model;

[0022] Figure 4 The structure schematic diagram of the anti-skid pad is provided in the utility model;

[0023] Icon:

[0024] 100-hoop ring assembly, 110-hoop piece, 111-thread groove, 112-arc-shaped mounting groove, 113-strengthening block, 114-tai groove, 120-reinforcing rib plate, 121-connecting plate, 122-through hole, 123-mounting hole, 124-rod body, 130-fastener, 140-anti-skid pad, 141-rubber pad surface, 142-threaded inlay, 143-groove body. DETAILED DESCRIPTION

[0025] The technical solutions in the utility model will be described below in combination with the drawings in the utility model.

[0026] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. Meanwhile, in the description of the utility model, the terms "first", "second" and the like are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0027] Please refer to Figures 1 to 4 The utility model provides a kind of special tool for governor pressure oil pump oil filter cartridge cover disassembly, in prior art, when disassembling the filter cartridge cover of pressure oil pump oil filter, there is no special tool, just the spanner used conventionally, make its disassembly process time-consuming and laborious, there is also the situation that filter cartridge cover drops off in disassembly process, lead to the occurrence of personnel injury and the like, to solve the above technical problems, the utility model is by being equipped with special tool, reach the purpose of improving disassembly efficiency and safety.

[0028] As shown in Figure 1 It includes two hoop ring assemblies 100, the hoop ring assembly 100 includes hoop piece 110 that is arc-shaped, the outer surface of the hoop piece 110 is further provided with outwardly extending reinforcing rib plate 120, and the inner surface of the hoop piece 110 is further provided with anti-skid pad 140.

[0029] Now the structure of anti-skid pad 140 is elaborated in detail, as Figure 4As shown, in order to better install the non-slip pad 140, a threaded groove 111 is also provided on the inner surface of the hoop 110. The non-slip pad 140 includes a rubber pad surface 141 and a threaded insert 142 placed in the threaded groove 111. The threaded insert 142 is provided on the side of the rubber pad surface 141 facing the inner surface of the hoop 110, and can be placed in the threaded groove 111 to enable the installation of the rubber pad. In order to achieve a more secure installation effect, inward recesses 143 are also provided on the top and bottom of the rubber pad surface 141, which can wrap around the edges of the hoop 110. The recesses 143 are located on the same side as the threaded insert 142 and work together with the threaded insert 142 to achieve the purpose of installing the non-slip pad 140. By providing the non-slip pad 140, the two sets of hoop ring assemblies 100 can increase friction and improve grip when fitted around the outer surface of the filter cover, thereby facilitating subsequent disassembly and assembly.

[0030] First, the structure of the reinforcing rib plate 120 is described in detail. As shown in Figure 2 In order to strengthen the installation of the hoop 110 and the reinforcing rib plate 120, the outer surface structure of the hoop 110 is further optimized. Specifically, an inwardly recessed arc-shaped mounting groove 112 is provided on the outer surface of the hoop 110, as shown in Figure 3 The arc-shaped mounting groove 112 is located in the middle of the outer surface of the hoop 110. The reinforcing rib plate 120 is also arc-shaped, and the extension surface of the reinforcing rib plate 120 is perpendicular to the outer surface of the hoop 110, as shown in Figure 1 , 2 The inner ring of the reinforcing rib plate 120 is placed in the arc-shaped mounting groove 112, so that the installed reinforcing rib plate 120 is located in the middle of the outer surface of the hoop 110. This arrangement of the reinforcing rib plate 120 facilitates hand gripping during the disassembly and assembly of the filter cover, solving the technical problems of slippery handling during disassembly and assembly, making it easier to operate and improving work efficiency. At the same time, it can also reduce the safety problems caused by the falling of the filter cover due to slipping after disassembly, thereby providing safety. In addition, reinforcing blocks 113 are also provided on the two ends of the reinforcing rib plate 120 in the two side directions. The reinforcing blocks 113 are located on the two sides of the reinforcing rib plate 120, as shown in / 1, making the connection between the reinforcing rib plate 120 and the hoop 110 more secure and the overall connectivity stronger.

[0031] In addition, the L-shaped table groove 114 is arranged at the bottom of the two ends of the hoop 110, the connecting plate 121 is arranged in the table groove 114, and the reinforcing block 113 is fixedly connected with the bottom of the hoop 110 through the connecting piece, so that the connection between the reinforcing rib plate 120 and the hoop 110 is more firm, and in addition, the through hole 122 is arranged on the connecting plate 121, and the connecting plates 121 of two groups of hoop ring assemblies 100 arranged correspondingly are fastened and connected through the fastening piece 130, so that the two groups of hoop ring assemblies 100 can fix and install the filter core cover. Figure 1

[0032] In order to achieve the purpose of labor-saving installation and disassembly of the filter core cover, the mounting hole 123 is arranged on the reinforcing rib plate 120, and the rod body 124 is mounted on the mounting hole 123, the end of the rod body 124 is in a U-shaped type, so that the rod body 124 and the reinforcing rib plate 120 are fixedly connected, and in order to achieve the purpose of labor-saving operation, when force is needed, the reinforcing rib plate 120 does not need to be manually held and rotated, and a wolf hammer or the like can be used to knock the rod body 124 in a counterclockwise direction, so that the reinforcing rib plate 120 and the hoop 110 are driven to rotate, and the filter core cover is synchronously rotated to achieve the purpose of installation and disassembly. Figure 1

[0033] The installation process of the device is as follows:

[0034] The threaded insert 142 of the anti-skid pad 140 is arranged in the threaded groove 111 on the inner surface of the hoop 110, then the recess body 143 at the top and the bottom of the rubber pad surface 141 is buckled and wrapped at the edge of the hoop 110, after installation, the reinforcing rib plate 120 is installed in the arc-shaped mounting groove 112 on the outer surface of the hoop 110, and the connecting plate 121 at the bottom of the reinforcing rib plate 120 is arranged in the L-shaped table groove 114 of the hoop 110, then the connecting piece is inserted into the bottom of the connecting plate 121 and the hoop 110 (not shown in the figure) from the bottom, a plurality of reinforcing blocks 113 are arranged on both sides of the reinforcing rib plate 120, one end of the reinforcing block 113 is fixedly connected with the reinforcing rib plate 120, and the other end is fixedly connected with the outer surface of the hoop 110, 2 groups of mounting holes 123 are arranged on the reinforcing rib plate 120, and the rod body 124 is arranged in the mounting hole 123, and the end of the rod body 124 is in a U-shaped type.

[0035] The working process of the device is as follows:

[0036] ​​The assembled hoop assembly 100 is respectively sleeved on the filter core cover, and the connecting plates 121 of the two hoop assemblies 100 are fixedly connected through fasteners 130, the fasteners 130 are preferably bolts, the filter core cover is fastened, the filter core cover is further gripped under the action of the non-slip pad 140, then the filter core barrel is loosened by using a wrench, the filter core is removed by holding the reinforced rib plate 120 with both hands and rotating counterclockwise, if more labor-saving is needed, a hammer or other tools can be used to knock the rod body 124 counterclockwise, so as to drive the reinforced rib plate 120 to rotate counterclockwise, and then the filter core is disassembled, after the filter core is replaced, the installation process is to rotate the reinforced rib plate 120 clockwise, so that the replacement and installation purposes are achieved, and the special tool can be removed after installation.

[0037] The special tool has simple structure, ingenious design, and considers the filter core cover structure, weight, stress point and torque, rotating radius area, fixing mode, use convenience and actual needs and other factors, and is designed and manufactured after comprehensive consideration, so that the problems of easy slippage without a hand grip when the filter core cover is disassembled are solved.

[0038] The above is only a specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be the protection scope of the claims.

Claims

1. A special tool for disassembling the filter element cover of a governor pressure oil pump, characterized in that, It includes two sets of hoop assemblies (100), each hoop assembly (100) including an arc-shaped hoop (110), the outer surface of the hoop (110) is also provided with an outwardly extending reinforcing rib plate (120), a connecting plate (121) is provided at the free end of the reinforcing rib plate (120), and a through hole (122) is provided on the connecting plate (121); It also includes fasteners (130), the two sets of the hoop assemblies (100) are arranged opposite to each other, the fasteners (130) pass through the through holes (122) on the connecting plates (121) of the two sets of hoop assemblies (100) and are fixedly connected.

2. The special tool for disassembling the filter element cover of the governor pressure oil pump according to claim 1, characterized in that, The inner surface of the hoop (110) is also provided with a threaded groove (111), and an anti-slip pad (140) is installed on the threaded groove (111).

3. The special tool for disassembling the filter element cover of the governor pressure oil pump according to claim 2, characterized in that, The anti-slip mat (140) includes a rubber pad surface (141) and a threaded insert (142) placed in a threaded groove (111). The threaded insert (142) is disposed on one side of the rubber pad surface (141). The top and bottom of the rubber pad surface (141) are provided with inwardly facing grooves (143). The grooves (143) are wrapped around the edge of the hoop (110). The grooves (143) and the threaded insert (142) are located on the same side.

4. The special tool for disassembling the filter element cover of the governor pressure oil pump according to any one of claims 1 to 3, characterized in that, The outer surface of the hoop (110) is provided with an inwardly concave arc-shaped mounting groove (112), and the inner ring of the reinforcing rib plate (120) is placed in the arc-shaped mounting groove (112). The arc-shaped mounting groove (112) is located in the middle of the outer surface of the hoop (110), so that the reinforcing rib plate (120) is located in the middle of the outer surface of the hoop (110).

5. The special tool for disassembling the filter element cover of the governor pressure oil pump according to claim 4, characterized in that, A reinforcing block (113) is provided between the hoop (110) and the reinforcing rib plate (120). The reinforcing block (113) is located on both sides of the reinforcing rib plate (120), and there are multiple reinforcing blocks (113).

6. The special tool for disassembling the filter element cover of the governor pressure oil pump according to claim 5, characterized in that, The bottom of both ends of the hoop (110) is provided with L-shaped grooves (114), one end of the connecting plate (121) is placed in the groove (114), and the bottom of the connecting plate (121) and the hoop (110) are also provided with connecting members to fix the connecting plate (121) and the hoop (110) together.

7. The special tool for disassembling the filter element cover of the governor pressure oil pump according to claim 1, characterized in that, The reinforcing rib plate (120) is provided with mounting holes (123), through which rods (124) are installed. The end of the rod (124) is U-shaped, and its installation position is aligned with the mounting hole (123). There are two rods (124) and they are spaced apart.