Anti-slip filter shell

Abstract

The utility model discloses an anti-slip filter shell, which comprises a tank body and a cover body, the tank body comprises a cylindrical section with a closed bottom, the upper edge of the cylindrical section is connected with an annular mounting section through an external expansion section, and a concave hemming section is integrally formed at the upper end of the annular mounting section; a locking ring extending upwards is integrally formed on the outer curved surface of the cover body, the locking ring is pressed on the inner side face of the annular mounting section, and the hemming section is pressed on the inner side face of the locking ring after winding around the upper side of the locking ring; due to the fact that the knurls are machined on the outer curved surface of the locking ring, friction force between the locking ring and the annular installation section is greatly increased, relative rotation between the cover body and the tank body is avoided, and the phenomenon that the cover body and the tank body cannot be disassembled or screwed tightly due to slipping in the disassembling and assembling process is avoided. The filter is further provided with a step ring, so that the upper edge of the filter can be protected, and edge warping is prevented.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to an anti-slip filter housing. Background Technology

[0002] A filter is a device used to filter impurities, particulate matter, or moisture from oil. Its main function is to protect equipment such as engines from contamination and ensure efficient system operation.

[0003] Filters are generally installed on filter holders, and due to the limited capacity of the filter element inside the filter, the filter element needs to be replaced frequently. However, as shown in a filter disclosed in application number 201620049823.8, the current connection between the inner shell and the top cover of the filter is generally a simple rolled edge sealing structure, which relies on the plastic deformation of the material to achieve permanent sealing and locking. However, if the user or staff uses too much force when installing or removing the filter, the filter shell and the top cover may rotate relative to each other, causing slippage and making it difficult to remove or tighten the filter. Therefore, it needs to be improved. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an anti-slip filter housing to solve the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: an anti-slip filter shell, including a tank and a cover, wherein the tank includes a cylindrical section with a closed bottom, and an annular mounting section is connected to the upper edge of the cylindrical section through an outwardly expanding section, and an inwardly concave rolled edge section is integrally formed at the upper end of the annular mounting section.

[0006] The outer curved surface of the cover is integrally formed with an upwardly extending locking ring, which presses against the inner side of the annular mounting section, and the rolled edge section wraps around the upper side of the locking ring and then presses against the inner side of the locking ring.

[0007] The outer curved surface of the locking ring is knurled.

[0008] Preferably, it further includes a stepped ring, the outer curved surface of which presses against the inner edge of the rolled edge segment.

[0009] Preferably, the outer curved surface of the stepped ring is integrally formed with an upper pressing ring, which presses against the upper end of the rolled edge segment.

[0010] Preferably, the outer curved surface of the stepped ring is also integrally formed with a pressing ring, which abuts against the inner curved surface of the locking ring.

[0011] Preferably, the inner inclined surface of the outwardly expanding section obliquely supports the locking ring.

[0012] Preferably, the cover body has multiple oil inlet holes distributed around its inner circumference, and a frustum is provided at the axis of the cover body, with a threaded hole running vertically through the frustum.

[0013] Preferably, the knurling on the outer curved surface of the locking ring is straight knurling.

[0014] This utility model provides an anti-slip filter housing, which has the following beneficial effects:

[0015] The outer curved surface of the locking ring is knurled, which greatly increases the friction between the ring and the mounting section, and prevents relative rotation between the cover and the can. This avoids the problem of the lock not being able to be disassembled or tightened due to slippage during the assembly and disassembly process.

[0016] This utility model also includes a stepped ring to protect the upper edge of the filter and prevent it from warping. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the appearance of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure within this utility model;

[0019] Figure 3 yes Figure 2 A schematic diagram of the exterior of the middle cover;

[0020] Figure 4 yes Figure 2 Enlarged diagram of point A in the middle.

[0021] In the picture:

[0022] 11. Tank body; 12. Cover; 13. Oil inlet; 14. Frustum; 15. Threaded hole; 21. Cylindrical section; 22. Outward expansion section; 23. Annular mounting section; 24. Flange section; 31. Locking ring; 41. Stepped ring; 42. Upper pressure ring; 43. Lower pressure ring. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Reference Figures 1-4 According to an embodiment of the anti-slip filter housing of the present invention, it includes a tank body 11 and a cover body 12. The structure of the tank body 11 is as follows: the tank body 11 includes a cylindrical section 21 with a closed bottom. The upper edge of the cylindrical section 21 is connected to an annular mounting section 23 through an outward expansion section 22. The upper end of the annular mounting section 23 is integrally formed with a concave rolled edge section 24.

[0028] The outer curved surface of the cover 12 is integrally formed with an upwardly extending locking ring 31. The locking ring 31 presses against the inner curved surface of the annular mounting section 23. The rolled edge section 24 wraps around the upper side of the locking ring 31 and then fastens to the inner side of the locking ring 31 to form a rolled edge sealing and locking structure. The inner side of the outward expansion section 22 obliquely supports the lower edge of the locking ring 31, thereby completing the mutual fixation of the cover 12 and the can body 11.

[0029] In addition, to prevent the cover 12 from rotating relative to the tank 11 when the operator rotates the tank 11 to disassemble and assemble the anti-slip filter housing, the outer curved surface of the locking ring 31 is knurled to increase the friction between it and the annular mounting section 23 and avoid the above situation. In this embodiment, the knurling pattern is straight knurling.

[0030] Furthermore, in order to protect the rolled edge section 24 and prevent it from curling, a stepped ring 41 is also included. The outer curved surface of the stepped ring 41 is attached to the inner edge of the rolled edge section 24. The outer curved surface of the stepped ring 41 is integrally formed with an upper pressing ring 42 and a lower pressing ring 43. The upper pressing ring 42 presses against the upper end of the rolled edge section 24, and the lower pressing ring 43 abuts against the inner curved surface of the locking ring 31.

[0031] The upper pressure ring 42 and the lower pressure ring 43 can lock the vertical relative position of the stepped ring 41 with respect to the tank body 11.

[0032] The cover 12 has multiple oil inlet holes 13 distributed around its inner circumference. Due to the presence of the stepped ring 41, the upper edge of the anti-slip filter housing is raised. To facilitate the installation of the anti-slip filter housing, unlike the concave threaded portion in a typical filter, a frustum 14 is provided at the axis of the cover 12, and the frustum 14 has a through threaded hole 15 for connection with the mounting platform. The threaded hole 15 is used for oil outlet.

[0033] It should be noted that the tank body 11 can be fitted with a filter element and a bypass valve to complete the assembly of the filter. Two sealing rings should be provided for sealing, and they should be installed between the oil inlet 13 and the frustum 14, and also fitted around all the oil inlet 13. This is prior art and will not be described in detail here.

[0034] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. An anti-slip filter housing, comprising a tank (11) and a cover (12), characterized in that: The tank (11) includes a cylindrical section (21) with a closed bottom. The upper edge of the cylindrical section (21) is connected to an annular mounting section (23) through an outward expansion section (22). The upper end of the annular mounting section (23) is integrally formed with a concave rolled edge section (24). The outer curved surface of the cover (12) is integrally formed with an upwardly extending locking ring (31), the locking ring (31) is pressed against the inner side of the annular mounting section (23), and the rolled edge section (24) is wrapped around the upper side of the locking ring (31) and then pressed against the inner side of the locking ring (31). The outer curved surface of the locking ring (31) is knurled.

2. The anti-slip filter housing according to claim 1, characterized in that: It also includes a step ring (41), the outer curved surface of which presses against the inner edge of the rolled edge segment (24).

3. The anti-slip filter housing according to claim 2, characterized in that: The outer curved surface of the stepped ring (41) is integrally formed with an upper pressure ring (42), which presses against the upper end of the rolled edge section (24).

4. The anti-slip filter housing according to claim 3, characterized in that: The outer curved surface of the stepped ring (41) is also integrally formed with a pressing ring (43), which abuts against the inner curved surface of the locking ring (31).

5. The anti-slip filter housing according to claim 1, characterized in that: The inner inclined surface of the outward expansion section (22) obliquely supports the locking ring (31).

6. The anti-slip filter housing according to claim 1, characterized in that: The cover (12) has multiple oil inlet holes (13) distributed around its inner circumference. A frustum (14) is provided at the axis of the cover (12), and a threaded hole (15) is provided inside the frustum (14).

7. The anti-slip filter housing according to claim 1, characterized in that: The knurling on the outer curved surface of the locking ring (31) is straight knurling.

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