Oil filter with impact force weakening structure

Abstract

The utility model provides an engine oil filter equipped with an impact force weakening structure, which comprises a bottom cover, a cylindrical shell, a sealing cover and a filter element assembly, and the upper end of the bottom cover is in threaded sealing connection with the lower end of the cylindrical shell through a second sealing washer. The filter element assembly is convenient to clean thoroughly and clean or replace, the disassembly and assembly difficulty of the whole filter is greatly reduced, subsequent maintenance of a user is facilitated, the integrated filter paper cylinder is used for replacing traditional folding filter paper, a metal supporting hole pipe does not need to be arranged in the filter paper cylinder, the problem of fitting degree does not need to be worried about, engine oil entering the filter paper cylinder can be discharged, and the filter element assembly is convenient to use. Meanwhile, a plurality of convex rings which are uniformly distributed are arranged on the filter paper cylinder, so that the use strength of the filter paper cylinder can be enhanced, the whole filter paper cylinder has impact resistance and buffering capability, and the filter area can be increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine oil filters, and particularly relates to an engine oil filter equipped with an impact force weakening structure. Background Art

[0002] The operation is difficult. The oil filter is usually installed in the engine compartment and needs to be removed for cleaning or replacement. The traditional oil filter is time-consuming to disassemble when replacing or cleaning the filter paper. The old oil needs to be discharged when the filter is removed, and oil leakage should be avoided to pollute the environment. This process is complicated and time-consuming, which increases the time cost. Furthermore, the environmental pollution problem is significant. When removing the old filter, the residual oil may leak and pollute the workplace and environment. Improper handling of waste filters will also cause an environmental burden. The main reason for these shortcomings is that the design of the oil filter does not fully consider the convenience of disassembly, the connection method is complicated, the disassembly and cleaning steps are many and cumbersome, and the structure of the oil filter itself is not conducive to environmental protection.

[0003] To address these issues, conventional methods include improving filter design, such as using quick-disassembly structures and environmentally friendly materials, using professional tools and equipment to improve disassembly efficiency, and formulating strict operating specifications and environmental protection treatment plans. However, these methods also have obvious disadvantages, such as filter design improvements require high R&D investment and time costs, the purchase and use of professional tools and equipment increase the economic burden, strict operating specifications require enhanced operator training, and environmental protection treatment plans are difficult to implement and require coordination of resources from all parties. Therefore, we hope to design an oil filter with a new structure to solve this problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an oil filter equipped with a structure for weakening impact force, so as to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized by the following technical scheme: an oil filter equipped with an impact force weakening structure, comprising: a bottom cover, a column shell, a sealing cover and a filter element assembly, wherein the upper end of the bottom cover is thread-sealed with the lower end of the column shell through a second sealing gasket, the upper end of the column shell is thread-sealed with the lower end of the sealing cover through a first sealing gasket, the bottom of the sealing cover is thread-connected with a filter element assembly, and the filter element assembly is placed inside the bottom cover, the column shell and the sealing cover;

[0006] The bottom cover comprises a cover shell and a screw, the middle of the bottom of the cover shell is threadedly connected with the screw, the sealing cover comprises a cover body and a connecting part, and the middle of the bottom of the sealing cover is integrally provided with a connecting part;

[0007] The filter element assembly includes end cover 1, a pressure relief valve, a filter paper cylinder and a fixed cylinder. The upper end of the filter paper cylinder is fixed with end cover 2, the lower end of the filter paper cylinder is fixed with end cover 1, the upper end of the end cover 2 is threadedly connected to the connecting part, and the upper end of the end cover 2 is clamped with the upper end of the fixed cylinder.

[0008] As a preferred embodiment, the interior of the cover shell is not connected to the lower end of the fixed cylinder, the lower end of the fixed cylinder extends to the interior of the cover shell, an oil guide hole is arranged in the middle of the inner end of the screw rod, and an outer row hole is radially opened on the side of the outer section of the screw rod, the outer row hole is connected with the outer section of the oil guide hole, and the outer row hole and the oil guide hole are L-shaped as a whole. The setting of the outer row hole and the oil guide hole, in conjunction with the screw rod, can quickly release the oil in the column shell and the bottom cover in actual use, thereby avoiding internal oil leakage and pollution of the environment when the entire structure is disassembled.

[0009] As a preferred embodiment, a plurality of oil inlet holes distributed in a ring structure are provided on the upper edge of the sealing cover, and a check valve is fixed to the bottom edge of the sealing cover.

[0010] As a preferred embodiment, the connecting portion is disposed in the middle part of the cover body and has an internal threaded hole 1, and the connecting portion away from the cover body and has an internal threaded hole 2. The arrangement of the connecting portion can facilitate installation and removal of the filter element assembly.

[0011] As a preferred embodiment, the lower end of the connecting portion is threadedly connected to the external threaded pipe at the upper end of the second end cover via the second internal thread, and the bottom of the fixing tube is crimped between the lower end of the connecting portion and the upper end of the second end cover.

[0012] As a preferred embodiment, the diameter of the fixed tube is smaller than the inner diameter of the column shell, the lower end of the fixed tube is open, the front edge of the fixed tube is provided with two symmetrically arranged communicating holes, and the inner diameter of the fixed tube is larger than the outer diameter of the filter paper tube.

[0013] As a preferred embodiment, the outer wall of the filter paper cylinder is provided with a plurality of convex rings distributed at equal intervals, and an annular groove is provided between every two convex rings.

[0014] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: by setting the bottom cover, column shell and sealing cover, the user can first twist the screw at the bottom of the cover shell, and first discharge the engine oil inside the column shell and the bottom cover through the outer discharge hole and the oil guide hole on the screw rod. After the engine oil inside the column shell and the bottom cover is completely discharged, the screw rod is tightened again, and the entire filter is removed from the engine compartment at this time. Since the engine oil inside the filter has been discharged in advance, the engine oil will not leak out and pollute the environment during disassembly. Since the cover shell and the sealing cover are both threadedly sealed with the column shell, the user can remove the cover shell and the sealing cover from the column shell respectively, and then disassemble the entire filter, which is convenient for thorough cleaning and cleaning or replacement of the filter element assembly, greatly reducing the difficulty of disassembling and assembling the entire filter, and facilitating subsequent maintenance by the user.

[0015] The filter element assembly uses an integrated filter paper tube instead of the traditional folded filter paper. There is no need for a built-in metal support hole tube, and there is no need to worry about the fit problem. The oil that enters the filter paper tube can be discharged without obstruction. At the same time, multiple evenly distributed convex rings are arranged on the filter paper tube, which can enhance the strength of the filter paper tube. The filter paper tube has the ability to resist impact and buffer, and can increase the filtration area. While ensuring the filtration capacity, the strength and service life of the filter paper tube are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 The utility model is a schematic diagram of the overall structure of an oil filter equipped with a structure for weakening impact force.

[0018] Figure 2 The utility model is a schematic diagram of the internal structure of an oil filter equipped with an impact force weakening structure.

[0019] Figure 3 The utility model is a schematic diagram of a filter element assembly structure of an oil filter equipped with an impact force weakening structure.

[0020] Figure 4 It is a schematic diagram of the connection between a filter paper cylinder of an oil filter equipped with an impact force weakening structure and end caps 1 and 2 according to the utility model.

[0021] Figure 5 The utility model is a schematic diagram of the internal structure of a filter paper cylinder of an oil filter equipped with an impact force weakening structure.

[0022] In the figure, 100 is a bottom cover, 110 is a cover shell, 120 is a screw rod, and 121 is an oil guide hole;

[0023] 200-column shell;

[0024] 300 - sealing cover, 310 - cover body, 320 - sealing gasket 1, 330 - connecting part;

[0025] 400-filter element assembly, 410-end cover one, 420-pressure relief valve, 430-filter paper cylinder, 431-convex ring, 432-ring groove, 440-fixed cylinder, 441-through hole, 450-end cover two. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 5 The utility model provides a technical solution: an oil filter equipped with an impact force weakening structure, comprising: a bottom cover 100, a column shell 200, a sealing cover 300 and a filter element assembly 400, the upper end of the bottom cover 100 is threadedly sealed with the lower end of the column shell 200 through a sealing gasket 2, the upper end of the column shell 200 is threadedly sealed with the lower end of the sealing cover 300 through a sealing gasket 1 320, the bottom of the sealing cover 300 is threadedly connected with the filter element assembly 400, and the filter element assembly 400 is placed inside the bottom cover 100, the column shell 200 and the sealing cover 300;

[0028] The bottom cover 100 includes a cover shell 110 and a screw 120. The screw 120 is threadedly connected to the middle of the bottom of the cover shell 110. The sealing cover 300 includes a cover body 310 and a connecting portion 330. The connecting portion 330 is integrally provided in the middle of the bottom of the sealing cover 300.

[0029] The filter element assembly 400 includes an end cap 1 410, a pressure relief valve 420, a filter paper cylinder 430 and a fixed cylinder 440. An end cap 2 450 is fixed to the upper end of the filter paper cylinder 430, and an end cap 1 410 is fixed to the lower end of the filter paper cylinder 430. The upper end of the end cap 2 450 is threadedly connected to the connecting part 330, and the upper end of the end cap 2 450 is clamped to the upper end of the fixed cylinder 440.

[0030] See also Figures 1 to 3The interior of the cover shell 110 is not connected to the lower end of the fixed cylinder 440, and the lower end of the fixed cylinder 440 extends to the interior of the cover shell 110. An oil guide hole 121 is arranged in the middle of the inner end of the screw rod 120, and an outer row hole is radially opened on the side of the outer section of the screw rod 120. The outer row hole is connected with the outer section of the oil guide hole 121. The outer row hole and the oil guide hole 121 are L-shaped as a whole. The setting of the outer row hole and the oil guide hole 121, in conjunction with the screw rod 120, can quickly release the oil in the column shell 200 and the bottom cover 100 in actual use, so as to avoid leakage of internal oil and pollution of the environment when the entire structure is disassembled.

[0031] A plurality of oil inlet holes distributed in a ring structure are provided on the upper edge of the sealing cover 300 , and a check valve is fixed to the bottom edge of the sealing cover 300 .

[0032] The connecting part 330 is disposed in the middle part of the cover body 310 and is provided with an internal threaded hole 1, and the connecting part 330 is disposed in the part away from the cover body 310 and is provided with an internal threaded hole 2. The arrangement of the connecting part 330 can facilitate the installation and removal of the filter element assembly 400.

[0033] The lower end of the connection part 330 is threadedly connected to the external threaded pipe at the upper end of the second end cover 450 through the second internal thread, and the bottom of the fixing tube 440 is crimped between the lower end of the connection part 330 and the upper end of the second end cover 450.

[0034] As the first embodiment of the utility model, in actual use, the user can first twist the screw 120 at the bottom of the cover shell 110, and discharge the oil inside the column shell 200 and the bottom cover 100 through the external discharge hole and the oil guide hole 121 on the screw 120. After the oil inside the column shell 200 and the bottom cover 100 is completely discharged, the screw 120 is tightened again. At this time, the entire filter is removed from the engine compartment. Since the oil inside the filter has been discharged in advance, the oil will not leak and pollute the environment during disassembly. Since the cover shell 110 and the sealing cover 300 are both threadedly sealed with the column shell 200, the user can remove the cover shell 110 and the sealing cover 300 from the column shell 200 respectively, and then disassemble the entire filter, which is convenient for thorough cleaning and cleaning or replacement of the filter element assembly 400, greatly reducing the difficulty of disassembly and assembly of the entire filter, and facilitating subsequent maintenance by the user.

[0035] See also Figures 3 to 5 The diameter of the fixed cylinder 440 is smaller than the inner diameter of the column shell 200 , the lower end of the fixed cylinder 440 is open, and two symmetrically arranged communicating holes 441 are provided at the front edge of the fixed cylinder 440 . The inner diameter of the fixed cylinder 440 is larger than the outer diameter of the filter paper cylinder 430 .

[0036] The outer wall of the filter paper cylinder 430 is provided with a plurality of convex rings 431 distributed at equal intervals, and an annular groove 432 is provided between every two convex rings 431 .

[0037] As the second embodiment of the present utility model, based on the above-mentioned first embodiment, the setting of the filter element assembly 400 uses an integrated filter paper tube 430 to replace the traditional folded filter paper. There is no need for a built-in metal support hole tube, and there is no need to worry about the problem of fit. The oil entering the filter paper tube 430 can be discharged without obstruction. At the same time, a plurality of evenly distributed convex rings 431 are arranged on the filter paper tube 430, which can enhance the use strength of the filter paper tube 430, so that the entire filter paper tube 430 has the ability of impact resistance and buffering (the entire filter paper tube 430 is hollow inside and has a certain elastic buffering capacity), and can increase the filtration area, while ensuring the filtration capacity, improving the use strength and service life of the filter paper tube 430.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil filter equipped with an impact force reduction structure, comprising: A bottom cover (100), a column shell (200), a sealing cover (300) and a filter element assembly (400), characterized in that the upper end of the bottom cover (100) is threadedly sealed with the lower end of the column shell (200) via a second sealing gasket, the upper end of the column shell (200) is threadedly sealed with the lower end of the sealing cover (300) via a first sealing gasket (320), the bottom of the sealing cover (300) is threadedly connected with the filter element assembly (400), and the filter element assembly (400) is placed inside the bottom cover (100), the column shell (200) and the sealing cover (300); The bottom cover (100) comprises a cover shell (110) and a screw (120), wherein the screw (120) is threadedly connected in the middle of the bottom of the cover shell (110), and the sealing cover (300) comprises a cover body (310) and a connecting portion (330), wherein the connecting portion (330) is integrally provided in the middle of the bottom of the sealing cover (300); The filter element assembly (400) comprises an end cap 1 (410), a pressure relief valve (420), a filter paper cylinder (430) and a fixed cylinder (440); an end cap 2 (450) is fixed to the upper end of the filter paper cylinder (430); an end cap 1 (410) is fixed to the lower end of the filter paper cylinder (430); an upper end of the end cap 2 (450) is threadedly connected to the connecting portion (330); and an upper end of the end cap 2 (450) is clamped to an upper end of the fixed cylinder (440).

2. The oil filter equipped with the impact force weakening structure according to claim 1, characterized in that: The interior of the housing (110) is not connected to the lower end of the fixed cylinder (440), the lower end of the fixed cylinder (440) extends into the interior of the housing (110), an oil guide hole (121) is provided in the middle of the inner end of the screw rod (120), an outer row of holes is radially opened on the side of the outer section of the screw rod (120), the outer row of holes is communicated with the outer section of the oil guide hole (121), and the outer row of holes and the oil guide hole (121) are in an L-shaped structure as a whole.

3. The oil filter equipped with the impact force weakening structure according to claim 1, characterized in that: The upper edge of the sealing cover (300) is provided with a plurality of oil inlet holes distributed in a ring structure, and a check valve is fixed to the bottom edge of the sealing cover (300).

4. The oil filter equipped with an impact force weakening structure according to claim 1, characterized in that: The connecting portion (330) is disposed in the middle part of the cover body (310) and is provided with an internal threaded hole 1, and the connecting portion (330) is disposed in the part away from the cover body (310) and is provided with an internal threaded hole 2.

5. The oil filter equipped with the impact force weakening structure according to claim 4, characterized in that: The lower end of the connecting portion (330) is threadedly connected to the external threaded pipe at the upper end of the second end cover (450) via the second internal thread, and the bottom of the fixing tube (440) is crimped between the lower end of the connecting portion (330) and the upper end of the second end cover (450).

6. The oil filter equipped with the impact force weakening structure according to claim 5, characterized in that: The diameter of the fixed cylinder (440) is smaller than the inner diameter of the column shell (200); the lower end of the fixed cylinder (440) is designed to be open; the front end edge of the fixed cylinder (440) is provided with two symmetrically arranged communicating holes; and the inner diameter of the fixed cylinder (440) is larger than the outer diameter of the filter paper cylinder (430).

7. The oil filter equipped with the impact force weakening structure according to claim 6, characterized in that: The outer wall of the filter paper cylinder (430) is provided with a plurality of convex rings (431) distributed at equal intervals, and an annular groove (432) is provided between every two convex rings (431).

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