Elastic pressing type self-locking filter barrel

Abstract

An elastic pressing type self-locking filter barrel comprises a filter barrel, a filter element and a filter barrel inner cover, the filter element is arranged in the filter barrel, the filter barrel inner cover covers the filter barrel in a fastening mode, the elastic pressing type self-locking filter barrel is characterized in that the filter barrel inner cover comprises an end face and a peripheral wall inserted into the inner wall of the filter barrel, a protruding clamping strip is arranged on the peripheral wall, and a clamping groove matched with the protruding clamping strip is formed in the inner wall of the filter barrel. One protruding clamping strip is provided with an elastic self-locking structure, the inner side of the corresponding clamping groove is provided with a corresponding limiting groove, the elastic self-locking structure comprises an elastic protruding column, and when the protruding clamping strips rotate to the locking position along the clamping grooves, the elastic protruding column of the elastic self-locking structure is ejected into the limiting groove. According to the elastic pressing self-locking filter barrel, the filter barrel cover and the filter barrel structure can be locked through the matching of the convex clamping strips and the matched clamping grooves, and meanwhile, the elastic self-locking structure and the pressing structure are arranged on one convex clamping strip, so that the processes of locking after tightening and unlocking by pressing and then opening the filter barrel cover can be realized; the whole structure is simple, practical and convenient.

Description

[Technical Field]

[0002] This utility model relates to the technical field of filter cartridges in water purifiers, and more particularly to a spring-loaded self-locking structure in the filter cartridge assembly structure. [Background Technology]

[0004] With the continuous improvement of living standards and the widespread use of household and commercial water treatment equipment, users' requirements for drinking water quality are increasing. Water purifiers and other water treatment equipment are frequently installed in many places, and the filter cartridge is the core component of a water purifier. The filter cartridge is placed inside the filter canister, which is a container for the filter cartridge. Currently, water purifier filter canisters are mainly of welded disposable structure and replaceable threaded sealing structure. However, with the increasing demand for environmental protection and convenience, disposable filter canisters no longer meet the requirements of environmental protection and cost. A common problem with detachable filter canisters is that after prolonged use, the seal is prone to loosening, leading to leakage. Therefore, a new type of filter canister sealing and locking structure design is needed to improve its reliability. [Summary of the Invention]

[0006] This utility model improves upon existing filter cartridge and filter element locking structures, ensuring both reliability and ease of use. A slotted structure is incorporated into the filter cartridge to secure it or its cover. After securing, a manual locking mechanism is required to prevent spontaneous release or slippage during use.

[0007] The spring-loaded self-locking filter cartridge of this utility model includes a filter cartridge, a filter element, and an inner cover of the filter cartridge. The filter element is installed in the filter cartridge, and the inner cover of the filter cartridge is fastened to the filter cartridge. The inner cover of the filter cartridge includes an end face and a peripheral wall that is inserted into the inner wall of the filter cartridge. A raised locking strip is provided on the peripheral wall, and a groove adapted to the raised locking strip is provided on the inner wall of the filter cartridge. An elastic self-locking structure is provided on one of the raised locking strips, and a corresponding limiting groove is provided on the inner side of the corresponding groove. The elastic self-locking structure includes an elastic protrusion. When the raised locking strip rotates along the groove to the locking position, the elastic protrusion of the elastic self-locking structure pushes into the limiting groove.

[0008] The limiting groove is set in the slot on the inner wall of the filter barrel, and a pressing structure is provided on the outer surface of the filter barrel wall at the location of the limiting groove.

[0009] The pressing structure includes a spring and a top rod. The spring is disposed on the outer circumferential surface of the filter barrel wall, and the side of the spring facing the inner wall of the filter barrel is pressed against the top rod. The top rod is positioned in a limiting groove opposite to the inner pushing direction of the spring.

[0010] The elastic self-locking structure includes a receiving space built into the protruding locking strip, in which a compression spring and an elastic protrusion pressing against the compression spring are inserted. The elastic protrusion has the freedom to retract inward when compressed.

[0011] The protruding retaining strips provided on the inner cover peripheral wall include two or more strips, and their rotation stroke is 1 / 4 arc to 1 / 2 arc.

[0012] The inner wall of the filter barrel is provided with a groove for the protruding clip. The groove has an inlet opening at the top of the filter barrel, and one of the grooves also has an elastic protruding column inlet opening in the middle.

[0013] The present invention relates to a spring-loaded self-locking filter canister, which can lock the filter canister cover and filter canister structure through a raised locking strip and a locking groove adapted to the raised locking strip. At the same time, one of the raised locking strips is provided with an elastic self-locking structure and a pressing structure to realize the locking after tightening and the unlocking and opening of the filter canister cover by pressing. The overall structure is simple, practical and convenient, avoiding the problem of self-loosening or cover slipping off during use. [Attached Image Description]

[0015] Figure 1 This is a schematic diagram of the overall structure of the spring-loaded self-locking filter barrel involved in this utility model;

[0016] Figure 2 This is a utility model Figure 1 Enlarged view of the rotation angle at point A;

[0017] Figure 3 This is an overall cross-sectional view of the spring-loaded self-locking filter barrel involved in this utility model;

[0018] Figure 4 This is an appendix to the utility model Figure 3 Enlarged view of a section at point B in the middle;

[0019] Among them: 10, filter barrel; 11, slot; 111, inlet groove; 112, inlet bevel; 20, filter element; 30, inner cover of filter barrel; 31, end face; 32, peripheral wall; 33, raised retaining strip;

[0020] 40. Elastic self-locking structure; 41. Elastic protruding post; 42. Accommodation space; 43. Compression spring;

[0021] 50. Pressing structure; 51. Spring piece; 52. Push rod;

Detailed Implementation Methods

[0023] The present invention will now be described in detail with reference to the embodiments. The embodiments described below are exemplary and are only used 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", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship, and 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, and therefore should not be construed as a limitation of this utility model.

[0025] Please refer to the attached document. Figure 1 ~Appendix Figure 4 The illustration shows a spring-loaded self-locking filter canister, comprising a filter canister 10, a filter element 20, and a filter canister inner cover 30, wherein the filter element 20 is installed in the filter canister 10, and the filter canister inner cover 30 is fastened to the filter canister 10. The filter canister inner cover 30 is characterized by having an end face 31 and a peripheral wall 32 inserted into the inner wall of the filter canister. The peripheral wall 32 is provided with a protruding locking strip 33, and the inner wall of the filter canister 10 has a groove 11 adapted to the protruding locking strip 33. One of the protruding locking strips 33 is provided with an elastic self-locking structure 40, and the corresponding groove 11 has a corresponding limiting groove 12. The elastic self-locking structure 40 includes an elastic protrusion 41. When the protruding locking strip 33 rotates along the groove 11 to the locking position, the elastic protrusion 41 of the elastic self-locking structure 40 pushes into the limiting groove 12.

[0026] The elastic protrusion 41 achieves a lock when tightened to a preset position. The elastic self-locking structure 40 does not work until it slides into place. As long as it is tightened to the current position, the elastic protrusion 41 slides into the limiting groove 12 and pops out to complete the self-locking process.

[0027] The limiting groove 12 is set in the slot 11 on the inner wall of the filter bucket. A pressing structure 50 is provided on the outer surface of the filter bucket wall at the location of the limiting groove 12. The pressing structure is a switch part to release the self-locking. When it is necessary to unscrew the inner cover 30 of the filter bucket, the elastic protrusion 41 must first be disengaged from the limiting groove 12. At this time, a pressing structure 50 is needed to press the elastic protrusion 41.

[0028] The pressing structure 50 includes a spring sheet 51 and a push rod 52. The spring sheet 51 is disposed on the outer circumferential surface of the filter barrel 10 wall. The side of the spring sheet 51 facing the inner wall of the filter barrel 10 is pressed against the push rod 52. The push rod 52 is subjected to the elastic force of the spring sheet 51 and is positioned opposite the limiting groove 12 in the inward pushing direction.

[0029] The elastic self-locking structure 40 includes a receiving space 42 built into the protruding locking strip 33, in which a compression spring 43 and an elastic protrusion 41 pressing against the compression spring 43 are inserted. The elastic protrusion 41 has the freedom to retract inward when compressed.

[0030] The protruding retaining strips 33 provided on the peripheral wall 32 of the inner cover of the filter bucket include two or more strips, and their rotation stroke is 1 / 4 arc to 1 / 2 arc.

[0031] The inner wall of the filter barrel 10 is provided with a groove 11 that adapts to the protruding clip 33. The groove 11 has an inlet slot 111 at the top of the filter barrel. One of the grooves 11 has an elastic protruding column inlet 112 in the middle of the inlet slot 111.

[0032] The present invention relates to a spring-loaded self-locking filter canister, which can lock the filter canister cover and filter canister structure through a raised locking strip and a locking groove adapted to the raised locking strip. At the same time, one of the raised locking strips is provided with an elastic self-locking structure and a pressing structure to realize the locking after tightening and the unlocking and opening of the filter canister cover by pressing. The overall structure is simple, practical and convenient, avoiding the problem of self-loosening or cover slipping off during use.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A spring-pressing type self-locking filter bucket comprising a filter bucket, a filter core, and an inner cover of the filter bucket, wherein the filter core is installed in the filter bucket, and the inner cover of the filter bucket is fastened to cover the filter bucket, characterized in that, The inner cover of the filter bucket comprises an end surface and a peripheral wall inserted into the inner wall of the filter bucket, a protruding clamping strip is arranged on the peripheral wall, a clamping groove matched with the protruding clamping strip is arranged on the inner wall of the filter bucket, an elastic self-locking structure is arranged on one of the protruding clamping strips, and a corresponding limiting recess is arranged on the inner side of the corresponding clamping groove, the elastic self-locking structure comprises an elastic protruding column, and when the protruding clamping strip is rotated to the locking position along the clamping groove, the elastic protruding column of the elastic self-locking structure is inserted into the limiting recess.

2. The self-locking filter bucket according to claim 1, wherein The limiting recess is arranged in the clamping groove of the inner wall of the filter bucket, and a pressing structure is arranged on the outer surface of the filter bucket wall at the position of the limiting recess.

3. The self-locking filter bucket according to claim 2, characterized in that, The pressing structure comprises an elastic sheet and a top rod, the elastic sheet is arranged on the outer peripheral surface of the filter bucket wall, one side of the elastic sheet facing the inner wall of the filter bucket is tightly abutted against the top rod, and the top rod is oppositely abutted against the limiting recess in the direction of being inwardly pressed by the elastic force of the elastic sheet.

4. The self-locking filter bucket according to claim 1, wherein The elastic self-locking structure comprises a containing space arranged in the protruding clamping strip, a compression spring is clamped in the containing space, and an elastic protruding column on the compression spring has the freedom of being inwardly retracted under pressure.

5. The self-locking filter bucket according to claim 1, wherein The protruding clamping strip arranged on the peripheral wall of the inner cover comprises two or more than two, and the rotating stroke is 1 / 4 arc to 1 / 2 arc.

6. The self-locking filter bucket according to claim 5, wherein The inner wall of the filter bucket is provided with a clamping groove matched with the protruding clamping strip, a guide slot is arranged on the top of the filter bucket, and an elastic protruding column guide inclined slot is further arranged in the middle of the guide slot of one of the clamping grooves.

Images