Oil filter with filter element convenient to replace

Abstract

The utility model relates to an engine oil filter convenient to replace a filter element, which comprises a shell and an end cover, the shell is sleeved on the outer side of the end cover, a plurality of clamping jaws used for clamping the end cover are distributed at the upper end of the shell along the circumferential direction, and a folding mechanism used for pressing the clamping jaws on the outer edge of the end cover is detachably arranged on the shell. According to the oil filter, the clamping jaws can be folded or released by mounting and dismounting the folding mechanism, so that the end cover can be dismounted for multiple times, the filter element can be conveniently and repeatedly taken out and mounted, the whole oil filter does not need to be discarded when the filter element is replaced, and the maintenance cost is relatively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to an oil filter which is convenient for replacing a filter element. Background Art

[0002] For a traditional oil filter, a groove for the upper end of the filter housing to be inserted into is formed on the lower end face of the end cap. When assembling the oil filter, a specific device is needed to extrude the outer side wall of the end cap so that the groove of the end cap closes, and the upper end of the filter housing is fastened in the groove.

[0003] This method can firmly install the end cap on the housing to prevent it from falling apart. However, since the structural shape cannot be restored to the state before assembly after the end cap and the housing are assembled, it is not convenient to replace the filter element. Usually, the entire filter is replaced, so for car owners, the long-term maintenance cost is relatively high. Content of the Utility Model

[0004] The utility model provides an oil filter which is convenient for replacing a filter element, and solves the above problems existing in the prior art during use.

[0005] The technical solution of the utility model is realized as follows: an oil filter which is convenient for replacing a filter element, comprising a housing and an end cap, the housing is sleeved outside the end cap, a plurality of clamping claws for clamping the end cap are circumferentially distributed on the upper end of the housing, and a closing mechanism for pressing the clamping claws against the outer edge of the end cap is detachably arranged on the housing.

[0006] The utility model is further arranged as: the closing mechanism comprises an elastic shrinkage ring, and the elastic shrinkage ring is sleeved outside the clamping claws.

[0007] The utility model is further arranged as: an installation sleeve is fixedly arranged on the upper end of the end cap, and the outer side wall of the installation sleeve is arranged as a conical surface.

[0008] The utility model is further arranged as: a rubber pad is arranged on the outer side wall of the installation sleeve, claw grains are arranged on the side wall of the clamping claw facing the installation sleeve, and the claw grains press against the rubber pad.

[0009] The utility model is further arranged as: the closing mechanism further comprises a reinforcing sleeve, the reinforcing sleeve is sleeved outside the clamping claws and its inner side wall is threadedly connected to the outer side wall of the housing, a flexible pad is integrally formed on the outer side wall of the elastic shrinkage ring, and the flexible pad is abutted between the reinforcing sleeve and the clamping claws.

[0010] The utility model is further arranged as: an annular sealing surface is integrally formed on the upper end of the flexible pad, and the sealing surface is used to block the gap between the clamping claw and the installation sleeve.

[0011] The present utility model is further configured such that: an annular pressing plate is provided at the upper end of the reinforcing sleeve, and the pressing plate is used to press the sealing surface against the upper ends of the mounting sleeve and the clamping claws.

[0012] In summary, the beneficial effects of the present utility model are as follows:

[0013] 1. With this structure, the clamping claws can be retracted or released by installing and disassembling the retracting mechanism, so that the end cover can be disassembled multiple times, which facilitates the repeated removal and installation of the filter element. There is no need to discard the entire oil filter when replacing the filter element, and relatively speaking, the maintenance cost is reduced.

[0014] 2. The mounting sleeve can prevent the end cover from tilting during installation.

[0015] 3. The rubber pad and the claw grains are used to increase the friction force, which can improve the structural stability between the end cover and the clamping claws after the end cover is installed.

[0016] 4. The reinforcing sleeve is used to further increase the retracting strength of the elastic retracting ring on the clamping claws.

[0017] 5. The flexible pad and the sealing surface can be used to prevent the oil filter from leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 It is a structural display diagram of the present utility model after removing the reinforcing sleeve and the elastic retracting ring;

[0021] Figure 3 For Figure 1 a partial enlarged schematic view of part A in

[0022] Reference numerals in the figures: 11 housing, 111 clamping claws, 112 claw grains, 113 elastic retracting ring, 114 flexible pad, 115 sealing surface, 116 reinforcing sleeve, 117 pressing plate, 12 end cover, 121 mounting sleeve, 122 rubber pad, 13 filter element, 14 check valve, 15 bypass valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will combine the drawings in the embodiments of the present utility model Figures 1 - 3, the technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment:

[0025] As Figures 1 to 3 shown, the present utility model discloses an oil filter facilitating filter element replacement, including structures such as a housing 11, an end cap 12, a filter element 13, a bypass valve 15, and a check valve 14. Among them, the arrangements of the filter element 13, the bypass valve 15, and the check valve 14 are the same as those in the prior art, so they will not be elaborated herein. The specific technical modification made by the present utility model is the change in the combination method between the end cap 12 and the housing 11, which is as follows:

[0026] First, look at the end cap 12. An installation sleeve 121 is fixedly arranged at the upper end of the end cap 12. The outer side wall of the installation sleeve 121 is arranged as a conical surface, and a rubber pad 122 is arranged on the outer side wall of the installation sleeve 121.

[0027] Secondly, look at the housing 11. The housing 11 is sleeved outside the end cap 12. At the same time, a plurality of clamping claws 111 for clamping the end cap 12 are circumferentially distributed at the upper end of the housing 11. The clamping claws 111 are arranged around the outer circumference of the installation sleeve 121, and claw grains 112 are arranged on the side wall of the clamping claws 111 facing the installation sleeve 121, and the claw grains 112 are used to press tightly on the rubber pad 122.

[0028] Finally, a closing mechanism for pressing the clamping claws 111 against the outer edge of the end cap 12 is detachably arranged on the housing 11. The closing mechanism includes an elastic contraction ring 113, and the elastic contraction ring 113 is sleeved outside the clamping claws 111 and is used to bundle the clamping claws 111 to make the clamping claws 111 contract.

[0029] The closing mechanism further includes a reinforcing sleeve 116. The reinforcing sleeve 116 is sleeved outside the clamping claws 111 and its inner side wall is threadedly connected to the outer side wall of the housing 11. In addition, a flexible pad 114 is integrally formed on the outer side wall of the elastic contraction ring 113. The flexible pad 114 is abutted and arranged between the reinforcing sleeve 116 and the clamping claws 111. At the same time, a ring-shaped sealing surface 115 is integrally formed at the upper end of the flexible pad 114. The sealing surface 115 is used to block the gap between the clamping claws 111 and the installation sleeve 121. Correspondingly, a ring-shaped pressing plate 117 is arranged at the upper end of the reinforcing sleeve 116, and the pressing plate 117 is used to press the sealing surface 115 against the upper ends of the installation sleeve 121 and the clamping claws 111.

[0030] The working principle of the above structure is as follows: When the end cover 12 needs to be assembled, first put the rubber gasket 122 on the end cover 12, then place the end cover 12 into the housing 11, and then put the elastic restraint ring 113 outside the claw 111 to make the claw 111 close and clamp the end cover 12. At this time, it should be noted to adjust the flexible gasket 114 and the sealing surface 115 to cover all the leakage points between the claw 111 and the mounting sleeve 121. Then install the reinforcement sleeve 116 on the housing 11 to complete the installation. When the filter element 13 needs to be replaced, just remove the reinforcement sleeve 116 and the elastic restraint ring 113 one by one to make the claws 111 move away from each other again, then the end cover 12 can be removed and the filter element 13 can be replaced.

[0031] Meanwhile, it should be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the protection scope of the present invention.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oil filter facilitating the replacement of a filter element, comprising a housing (11) and an end cap (12), characterized in that: The shell (11) is sleeved on the outside of the end cover (12); a plurality of claws (111) for clamping the end cover (12) are distributed along the circumferential direction on the upper end of the shell (11); and a retracting mechanism for pressing the claws (111) against the outer edge of the end cover (12) is detachably provided on the shell (11).

2. The oil filter that is convenient for replacing the filter element according to claim 1, wherein: The folding mechanism comprises an elastic folding ring (113), and the elastic folding ring (113) is sleeved outside the clamping claw (111).

3. The oil filter facilitating the replacement of a filter element according to claim 2, wherein: A mounting sleeve (121) is fixedly provided at the upper end of the end cover (12), and the outer side wall of the mounting sleeve (121) is provided in a conical surface.

4. The oil filter for facilitating the replacement of a filter element according to claim 3, wherein: A rubber pad (122) is provided on the outer side wall of the installation sleeve (121), and claw particles (112) are provided on the side wall of the clamping claw (111) facing the installation sleeve (121), and the claw particles (112) are pressed on the rubber pad (122).

5. The oil filter facilitating the replacement of a filter element according to claim 4, characterized in that: The folding mechanism further comprises a reinforcing sleeve (116), the reinforcing sleeve (116) being sleeved on the outside of the clamping claw (111) and having an inner wall threadedly connected to the outer wall of the shell (11), the outer wall of the elastic tightening ring (113) being integrally formed with a flexible pad (114), the flexible pad (114) being arranged to abut against the reinforcing sleeve (116) and the clamping claw (111).

6. The oil filter facilitating the replacement of a filter element according to claim 5, characterized in that: An annular sealing surface (115) is integrally formed at the upper end of the flexible pad (114), and the sealing surface (115) is used to cover the gap between the clamping claw (111) and the mounting sleeve (121).

7. The oil filter facilitating the replacement of a filter element according to claim 6, wherein: An annular pressing plate (117) is provided at the upper end of the reinforcing sleeve (116), and the pressing plate (117) is used to press the sealing surface (115) against the upper ends of the mounting sleeve (121) and the claw (111).

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