Round cage filter element cover dismounting tool

Abstract

The utility model relates to a kind of round cage filter core cover dismounting tools, with warp, weft ring and cage top, weft ring includes lower weft ring and upper weft ring, warp, weft ring and cage top are connected to form round cage, there is the clamping slot corresponding with filter core cover rib on lower weft ring and upper weft ring, there is the jackplug connected with spanner or air gun head in the middle of cage top, warp is at least 3, there can be other weft ring between lower weft ring and upper weft ring, to increase stress point, cage top is preferably star-shaped or cross-shaped structure, the jackplug in the central part of cage top is square hole, regular hexagonal hole or regular octagonal hole, jackplug is flat hole or protruding hole.The utility model structure is simplified, and manufacturing cost is low, convenient and practical, can increase the force area of filter core cover, stress dispersion, avoid damaging filter core cover, realize the continuous rotation of filter core cover when dismounting, omit efficient.

Description

Technical Field

[0001] This utility model relates to a technology for disassembling and assembling diesel filter elements, specifically a tool for disassembling and assembling a cage-shaped filter element cover. Background Technology

[0002] Many diesel vehicles are equipped with diesel fuel filters, which filter the diesel fuel in the tank before it enters the engine to remove water and other impurities, ensuring proper engine operation and improving efficiency. Some filters have a transparent cover for observing their condition. When replacing the filter, the cover must be removed first to replace the old filter with the new one, and then the cover must be screwed back on.

[0003] Most current filter covers are made of transparent plastic and are cylindrical in shape. The surface of the cylinder has raised ribs, and the ends are threaded to connect to the filter housing. The existing disassembly and assembly tool is shaped similarly to a badminton racket without a net; it consists of a retaining ring and a handle. The retaining ring has grooves that correspond to the filter cover ribs. To use it, the retaining ring is placed on the filter cover, allowing the ribs to engage in the grooves. The handle is then used to rotate the filter cover to disassemble or assemble it. Of course, some use belt wrenches, which also require a handle to apply torque for effective disassembly and assembly.

[0004] The problem with existing mesh-type tools for removing and installing filter covers is that relying on a single retaining ring and the cover's ribs results in a small force-bearing area, making it prone to concentrated force. This easily leads to deformation, dents, and damage to the filter cover, especially the ribs, which are more likely to break, causing the filter cover to become impossible to remove and resulting in oil or diesel leakage, increasing repair costs. To avoid this, mechanics can only remove and install the filter cover carefully and slowly, reducing work efficiency. Furthermore, since filters are generally installed in the engine compartment or on the frame, surrounded by other components, the angle of the handle's movement is extremely limited, typically only 30-60 degrees at a time. To rotate the filter cover, the retaining ring must be repeatedly pulled out and put back in to change the handle's angle—a cumbersome cycle of "put on - rotate - remove - put on again," severely impacting the efficiency of filter cover removal and installation.

[0005] Therefore, it is necessary to improve the existing tools for disassembling and assembling filter covers, or to develop entirely new tools to solve this problem. Summary of the Invention

[0006] To address this, the present invention proposes a cage-shaped filter cover disassembly and assembly tool, which increases the contact area, reduces stress concentration, avoids damage to the filter cover ribs, and enables continuous rotation of the filter cover during disassembly and assembly, thereby improving work efficiency and overcoming the shortcomings of the prior art.

[0007] The circular cage-shaped filter cover disassembly and assembly tool proposed in this utility model has warp strips, weft rings and a cage top. The weft rings include a lower weft ring and an upper weft ring. The warp strips, weft rings and cage top are connected to form a circular cage. The lower weft ring and the upper weft ring have slots corresponding to the filter cover ribs. The cage top has a socket for connecting a wrench or air gun head at the center.

[0008] The warp strips are at least 3.

[0009] Four warp strips are preferred.

[0010] There may be other upper latitude rings between the lower and upper latitude rings to increase the number of stress points.

[0011] The slots on the upper and lower weft rings corresponding to the same cover rib strip are on the same vertical line.

[0012] The inner diameters of the lower and upper weft rings are consistent with the cylindrical body of the filter element cover.

[0013] The cage top is preferably a star-shaped or cross-shaped structure.

[0014] The insertion hole at the center of the cage top is a square hole, a regular hexagonal hole, or a regular octagonal hole. The insertion hole can be a flat hole or a convex hole.

[0015] The lower weft ring, upper weft ring, and cage top are made of plastic or metal materials.

[0016] This utility model is used in the following way: When removing the filter cover, align the slots on the lower and upper weft rings with the filter cover ribs and insert them into the cage to cover the filter cover. Insert a bendable wrench, ratchet wrench, or air wrench into the central hole and rotate the cage to remove the filter cover.

[0017] During installation, first manually screw the filter cover into the filter seat, then put the cage on and rotate it in the opposite direction to tighten it.

[0018] This utility model has a simple structure, low manufacturing cost, and is convenient and practical. It can increase the force-bearing area of ​​the filter cover, disperse stress, avoid damage to the filter cover ribs, and enable the filter cover to rotate continuously during disassembly and assembly, thereby improving work efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is another three-dimensional structural schematic diagram of the present invention (protruding insertion hole type).

[0021] Figure 3 This is a diagram illustrating the disassembly and assembly of existing filter cover tools (the dotted lines represent the filter cover, which is partially omitted).

[0022] Figure 1-3 The component numbers are as follows: 1-Central insertion hole; 2-Cage top; 3-Upper weft ring; 4-Lower weft ring; 5-Warp strip; 6-Slot; 7-Filter cover; 8-Filter cover ribs; 9-Snap ring; 10-Handle. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figure 3 As shown. The existing filter cover removal and installation tool is similar to the tool used to remove the strings from a badminton racket. The racket frame is similar to the retaining ring 9, and the handle 10 is integrated with the racket frame for hand operation. The retaining ring also has grooves corresponding to the filter cover ribs 8.

[0025] As mentioned above, this type of disassembly and assembly tool relies on a retaining ring to engage with the filter element's ribs, resulting in a small force-bearing area. This makes it easy for the force to concentrate and damage the ribs. To avoid this, disassembly and assembly must be done carefully and slowly, reducing work efficiency. Furthermore, since other components are generally installed around the filter element, the angle for the handle to swing is extremely limited. To rotate the filter element cover, the retaining ring must be repeatedly pulled out and put back in to change the handle's angle, further reducing the efficiency of disassembling and assembling the filter element cover.

[0026] This utility model addresses the problems of this tool by proposing the following: Figure 1-2 The circular cage-shaped assembly and disassembly scheme is shown.

[0027] The lower weft ring 4 and the upper weft ring 3 are generally circular rings with the same inner diameter. Multiple sets of slots 6 are opened on the inner side of the upper and lower rings, corresponding to the number of filter element cover ribs. The same set of slots is generally on the same vertical line.

[0028] For some tapered filter covers, the inner diameter of the upper and lower weft rings needs to be changed accordingly.

[0029] There are at least three warp strips (5), usually four, but more is not excluded. Each warp strip is slatted. The cage top (2) corresponds to the number of warp strips. When there are three warp strips, it is designed in a star shape; when there are four warp strips, it can be cross-shaped; and when there are more warp strips, the cage top can be disc-shaped. The central insertion hole (1) in the cage top can be a flat hole or... Figure 2 The shape of the protruding hole shown is not limited; the central socket can be a square, hexagon, or octagon, as long as it matches the plug.

[0030] As mentioned above, the lower weft ring, upper weft ring, warp strips, and cage top are welded from plastic or metal materials such as steel and aluminum alloy. In most cases, choosing 45# steel plate is more economical. It is formed as a single piece through cutting, bending, or welding processes. The thickness of key components, such as the lower and upper weft rings, is generally not less than 6mm to ensure sufficient strength and torque transmission capacity. When choosing plastic, higher strength plastics should be selected.

[0031] The remaining unmentioned parts and designations are as described above.

[0032] The most significant feature of this invention is its extreme labor-saving capability. Due to its structural design, the twisting lever arm is equivalent to the entire diameter of the tool, providing it with a huge torque. Combined with the labor-saving principle of a ratchet wrench, the operator can save approximately 70% of their effort. Simultaneously, the multiple weft rings of this invention act simultaneously on the filter cover ribs, dispersing stress during assembly and disassembly, effectively preventing damage caused by stress concentration and providing excellent protection for the filter cover.

[0033] By designing and manufacturing weft ring structures with different inner diameters, it is possible to adapt to the disassembly and assembly of oil-water separator filter covers for various brands and models of vehicles.

Claims

1. A tool for disassembling and assembling a circular cage-shaped filter element cover, comprising warp strips, weft rings, and a cage top, characterized in that... The weft ring includes a lower weft ring and an upper weft ring. The warp strips, weft rings and cage top are connected to form a circular cage. The lower weft ring and upper weft ring have slots corresponding to the filter cover ribs. The cage top has a socket for connecting a wrench or air gun head in the center.

2. The tool for disassembling and assembling the cage-shaped filter cover according to claim 1, characterized in that... There should be at least 3 sutras.

3. The tool for disassembling and assembling the cage-shaped filter cover according to claim 2, characterized in that... Four strips of prayer beads are preferred.

4. The tool for disassembling and assembling the cage-shaped filter cover according to claim 1, characterized in that... There are other upper latitude rings between the lower and upper latitude rings to increase the number of stress points.

5. The tool for disassembling and assembling the cage-shaped filter cover according to claim 1, characterized in that... The slots on the upper and lower weft rings that correspond to the same filter element cover rib are on the same vertical line.

6. The tool for disassembling and assembling the cage-shaped filter cover according to claim 1, characterized in that... The inner diameters of the lower and upper weft rings are consistent with the cylindrical body of the filter element cover.

7. The tool for disassembling and assembling the cage-shaped filter cover according to claim 1, characterized in that... A star-shaped or cross-shaped structure is preferred for the top of the cage.

8. The tool for disassembling and assembling the cage-shaped filter cover according to claim 7, characterized in that... The insertion hole at the center of the cage top is a square hole, a regular hexagonal hole, or a regular octagonal hole; the insertion hole can be a flat hole or a convex hole.

9. The tool for disassembling and assembling the cage-shaped filter cover according to claim 1, characterized in that... The lower weft ring, upper weft ring, and cage top are made of plastic or metal.

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