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CN-224228769-U - Anti-slip filter shell

CN224228769UCN 224228769 UCN224228769 UCN 224228769UCN-224228769-U

Abstract

The utility model discloses an anti-slip filter shell which comprises a tank body and a cover body, wherein the tank body comprises a cylindrical section with a closed bottom, an annular installation section is connected to the upper edge of the cylindrical section through an outward expansion section, an inward concave curled section is integrally formed at the upper end of the annular installation section, a locking ring which extends upwards is integrally formed on the outer curved surface of the cover body and is pressed on the inner side surface of the annular installation section, the curled section is pressed on the inner side surface of the locking ring after being wound on the upper side of the locking ring, and knurling is processed on the outer curved surface of the locking ring.

Inventors

  • QIAN YONGYU

Assignees

  • 浙江永钰过滤系统有限公司

Dates

Publication Date
20260512
Application Date
20250630

Claims (7)

  1. 1. The anti-slip filter shell comprises a tank body (11) and a cover body (12), and is characterized in that the tank body (11) comprises a cylindrical section (21) with a closed bottom, an annular mounting section (23) is connected to the upper edge of the cylindrical section (21) through an outward expansion section (22), and an inward concave curled section (24) is integrally formed at the upper end of the annular mounting section (23); The outer curved surface of the cover body (12) is integrally formed with a locking ring (31) extending upwards, the locking ring (31) is pressed on the inner side surface of the annular mounting section (23), and the curled section (24) is wound on the upper side of the locking ring (31) and then is pressed on the inner side surface of the locking ring (31); The outer curved surface of the locking ring (31) is provided with knurling.
  2. 2. The filter housing according to claim 1, further comprising a step ring (41), wherein an outer curved surface of the step ring (41) is pressed against an inner edge of the hemming section (24).
  3. 3. The filter housing according to claim 2, wherein the outer curved surface of the step ring (41) is integrally formed with an upper pressing ring (42), and the upper pressing ring (42) is pressed against the upper end of the hemming section (24).
  4. 4. The filter housing according to claim 3, wherein the outer curved surface of the step ring (41) is further integrally formed with a lower pressing ring (43), and the lower pressing ring (43) abuts against the inner curved surface of the locking ring (31).
  5. 5. The filter housing according to claim 1, wherein the inner inclined surface of the flaring portion (22) supports the locking ring (31) in an inclined manner.
  6. 6. The anti-slip filter housing according to claim 1, wherein a plurality of oil inlet holes (13) are distributed on the inner circumference of the cover body (12), a round table (14) is arranged at the axis of the cover body (12), and threaded holes (15) penetrating up and down are arranged in the round table (14).
  7. 7. The filter housing according to claim 1, wherein the knurling on the outer curved surface of the locking ring (31) is a straight knurling.

Description

Anti-slip filter shell Technical Field The utility model relates to the technical field of filters, in particular to an anti-slip filter shell. Background The filter is a device for filtering impurities, particles or moisture in oil, and has the main functions of protecting equipment such as an engine and the like from pollution and ensuring the efficient operation of a system. The filter is generally mounted on the filter base, and the filter element needs to be replaced frequently due to the limited capacity of the filter element in the filter, however, as shown in a filter disclosed in application number 201620049823.8, the connection mode of the inner shell and the upper cover of the filter is generally a simple curled edge sealing structure, and the permanent sealing and locking are realized by plastic deformation of materials, however, if a user or a staff applies great force when mounting or dismounting the filter, the filter shell and the upper cover can rotate relatively, so that slipping is caused, the filter is difficult to dismount or screw, and improvement is needed. Disclosure of utility model In view of the shortcomings of the prior art, the present utility model provides an anti-slip filter housing to solve the above-mentioned problems of the prior art. The utility model provides a slip-proof filter shell which comprises a tank body and a cover body, wherein the tank body comprises a cylindrical section with a closed bottom, an annular mounting section is connected with the upper edge of the cylindrical section through an outward expansion section, and an inward concave curled section is integrally formed at the upper end of the annular mounting section; The outer curved surface of the cover body is integrally formed with an upward extending locking ring, the locking ring is pressed on the inner side surface of the annular mounting section, and the curled section is wound on the upper side of the locking ring and then pressed on the inner side surface of the locking ring; the outer curved surface of the locking ring is provided with knurling. Preferably, the device further comprises a step ring, wherein the outer curved surface of the step ring is pressed against the inner edge of the hemming section. Preferably, an upper pressing ring is integrally formed on the outer curved surface of the step ring, and the upper pressing ring is pressed at the upper end of the curled section. Preferably, the outer curved surface of the step ring is further integrally formed with a lower pressing ring, and the lower pressing ring is abutted to the inner curved surface of the locking ring. Preferably, the inner inclined surface of the outer expansion section supports the locking ring in an inclined manner. Preferably, a plurality of oil inlet holes are distributed on the inner circumference of the cover body, a round table is arranged at the axis of the cover body, and threaded holes penetrating up and down are arranged in the round table. Preferably, the knurling on the outer curved surface of the locking ring is a straight knurling. The utility model provides an anti-slip filter shell, which has the following beneficial effects: The outer curved surface of the locking ring is provided with the knurling, so that the friction force between the locking ring and the annular mounting section is greatly increased, and the relative rotation between the cover body and the tank body is avoided, namely the phenomenon that the locking ring is not disassembled or not screwed due to slipping in the disassembly and assembly process is avoided; The utility model is also provided with a step ring so as to protect the upper edge of the filter and prevent edge tilting. Drawings FIG. 1 is a schematic view of the appearance of the present utility model; FIG. 2 is a schematic view of the structure within the present utility model; FIG. 3 is a schematic view of the cover of FIG. 2; Fig. 4 is an enlarged schematic view at a in fig. 2. In the figure: 11. 12 parts of a tank body, 12 parts of a cover body, 13 parts of an oil inlet hole, 14 parts of a round platform, 15 parts of a threaded hole, 21 parts of a cylinder section, 22 parts of an outer expansion section, 23 parts of an annular mounting section, 24 parts of a curled section, 31 parts of a locking ring, 41 parts of a step ring, 42 parts of an upper compression ring, 43 parts of a lower compression ring. Detailed Description Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "hor