A filter cartridge mounting mechanism

Abstract

This utility model relates to a filter cartridge installation mechanism, including a filter cartridge positioning cylinder. A filter cartridge is installed inside the positioning cylinder, and a first spring is installed at the bottom of the cylinder. The bottom of the filter cartridge abuts against the first spring. A locking unit is provided on one side of the top of the positioning cylinder, the locking unit including a locking block, the bottom surface of which abuts against the top of the filter cartridge. When removing the old filter cartridge, the locking unit is released, and the top of the filter cartridge is pushed out by the elastic force of the first spring, making it easy to remove the old filter cartridge. When installing a new filter cartridge, the filter cartridge is placed into the positioning cylinder and pressed downwards, compressing the first spring. When the first spring is compressed to a certain extent, the locking unit locks the filter cartridge again, thus completing the filter cartridge replacement. This filter cartridge installation mechanism is convenient to operate and improves replacement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water purifier filter replacement technology, and in particular to a filter installation mechanism. Background Technology

[0002] With increasing awareness of drinking water health, the popularity of household water purifiers is getting higher and higher. The filter element of the water purifier is the core component of the water purifier, which can filter out some substances in the water that are harmful to the human body. Since harmful substances in the filter element will accumulate over time, the filter element needs to be replaced regularly during the use of the water purifier.

[0003] Water purifier filter cartridges are typically long cylindrical and embedded inside the water purifier. When replacing the filter cartridge, due to the increasingly compact design of water purifiers and the limited internal space, it's inconvenient to reach inside and remove the filter cartridge, making the replacement process difficult.

[0004] Therefore, a filter cartridge installation mechanism is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model addresses the technical problems existing in the prior art by providing a filter element installation mechanism.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A filter element installation mechanism includes a filter element positioning cylinder, a filter element is installed inside the filter element positioning cylinder, a first spring is installed at the bottom inside the filter element positioning cylinder, the bottom of the filter element abuts against the first spring, and a locking unit is provided on one side of the top of the filter element positioning cylinder. The locking unit includes a locking block, and the bottom surface of the locking block abuts against the top of the filter element.

[0007] Preferably, in the above-mentioned filter element installation mechanism, the locking unit further includes a top rod guide sleeve, a top rod is slidably connected inside the top rod guide sleeve, a baffle is fixed at one end of the top rod, and the locking block is fixedly connected to the baffle.

[0008] Preferably, in the above-described filter element mounting mechanism, a second spring is sleeved on the outside of the top rod, one end of the second spring is connected to the baffle, and the other end of the second spring is connected to the top rod guide sleeve.

[0009] Preferably, in the above-described filter element installation mechanism, a second wedge block is fixed to the end of the top rod away from the locking block, a first wedge block is slidably connected to the top surface of the second wedge block, and a push rod is fixed to the top of the first wedge block. When the push rod is pressed down, the first wedge block and the second wedge block slide relative to each other and drive the top rod to slide.

[0010] Preferably, in the above-described filter cartridge mounting mechanism, the push rod is perpendicular to the top rod.

[0011] Preferably, in the above-mentioned filter element installation mechanism, the bottom surface of the first wedge block is provided with at least two rectangular grooves, and the top surface of the second wedge block is provided with at least two rectangular protrusions, the rectangular protrusions corresponding one-to-one with the rectangular grooves, and the rectangular protrusions slidingly embedded in the rectangular grooves.

[0012] Preferably, in the above-described filter element mounting mechanism, lubricating oil is provided on the contact surface between the second wedge block and the first wedge block.

[0013] Preferably, in the above-mentioned filter cartridge installation mechanism, the filter cartridge positioning cylinder is fixed inside the housing of the water purifier, a cover plate is fixed to the top of the housing, the push rod guide sleeve is fixed to the bottom surface of the cover plate, and a push rod guide sleeve is also fixed to the bottom surface of the cover plate, and the push rod slides through the push rod guide sleeve and the cover plate.

[0014] Preferably, in the above-described filter element mounting mechanism, a round cover is mounted on the cover plate, and the round cover is located on the upper side of the filter element positioning cylinder.

[0015] The beneficial effects of this utility model are as follows: By installing a first spring at the bottom inner part of the filter element positioning cylinder and setting a locking unit on one side of the top of the cylinder, when the old filter element is removed, the locking unit is released, and the top of the filter element is pushed out under the elastic force of the first spring, thus facilitating the removal of the old filter element. When installing a new filter element, the filter element is placed into the filter element positioning cylinder and pressed downwards, compressing the first spring. When the first spring is compressed to a certain extent, the locking unit locks the filter element again, thus completing the filter element replacement. This filter element installation mechanism is convenient to operate and improves replacement efficiency when replacing filter elements. Attached Figure Description

[0016] Figure 1 This is a top view of the structure of a water purifier. Figure 2 This utility model Figure 1 Sectional view at point AA; Figure 3 for Figure 2 Enlarged view of a section at point B in the middle; Figure 4 This is a bottom view of the first wedge block.

[0017] The attached diagram lists the components represented by each number as follows: 1. Housing, 2. Round cover, 3. Push rod, 4. Cover plate, 5. Filter element positioning cylinder, 6. Filter element, 7. First spring, 8. First wedge block, 9. Second wedge block, 10. Locking block, 11. Second spring, 12. Top rod guide sleeve, 13. Baffle, 14. Push rod guide sleeve, 15. Top rod, 16. Rectangular groove. Detailed Implementation

[0018] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a filter cartridge installation mechanism includes a filter cartridge positioning cylinder 5, inside which a filter cartridge 6 is installed. The filter cartridge positioning cylinder 5 is fixed inside the housing 1 of the water purifier. A cover plate 4 is fixed to the top of the housing 1, and a round cover 2 is installed on the cover plate 4, located on the upper side of the filter cartridge positioning cylinder 5. The round cover 2 is threadedly connected to the cover plate 4, and a radial rotating handle is provided on the top surface of the round cover 2. When replacing the filter cartridge, the round cover 2 is removed before taking out the old filter cartridge for replacement. A first spring 7 is installed at the bottom of the filter cartridge positioning cylinder 5, and the bottom of the filter cartridge 6 abuts against the first spring 7. The bottom outlet of the filter cartridge 6 is coaxially arranged, and the bottom outlet of the filter cartridge 6 is sealed and snapped into place with a pipe connector. The pipe connector is vertically fixed at the center of the bottom of the filter cartridge positioning cylinder 5, located inside the first spring 7. It can be directly inserted and removed during installation and removal, and the elastic force of the first spring 7 can push the filter cartridge 6 upward to separate it from the pipe connector.

[0020] A locking unit is provided on one side of the top of the filter element positioning cylinder 5. The locking unit includes a locking block 10, the bottom surface of which abuts against the top of the filter element 6. The locking unit also includes a push rod guide sleeve 12, with a push rod 15 slidably connected inside the push rod guide sleeve 12. One end of the push rod 15 is fixed with a baffle 13, and the locking block 10 is fixedly connected to the baffle 13. A second spring 11 is sleeved on the outside of the push rod 15. One end of the second spring 11 is connected to the baffle 13, and the other end of the second spring 11 is connected to the push rod guide sleeve 12. A second wedge block 9 is fixed to the end of the push rod 15 away from the locking block 10. A first wedge block 8 is slidably connected to the top surface of the second wedge block 9. A push rod 3 is fixed to the top of the first wedge block 8. When the push rod 3 is pressed down, the first wedge block 8 and the second wedge block 9 slide relative to each other, causing the push rod 15 to slide. The push rod 3 is perpendicular to the top rod 15. Lubricating oil is provided on the contact surface between the second wedge block 9 and the first wedge block 8 to reduce the friction coefficient of the contact surface. The top rod guide sleeve 12 is fixed on the bottom surface of the cover plate 4. The push rod guide sleeve 14 is also fixed on the bottom surface of the cover plate 4. The push rod 3 slides through the push rod guide sleeve 14 and the cover plate 4.

[0021] Furthermore, to prevent the first wedge block 8 and the second wedge block 9 from sliding relative to each other in the front-back direction, at least two rectangular grooves 16 are provided on the bottom surface of the first wedge block 8, and at least two rectangular protrusions are provided on the top surface of the second wedge block 9. The rectangular protrusions correspond one-to-one with the rectangular grooves 16, and the rectangular protrusions slide into the rectangular grooves 16.

[0022] Working principle: When replacing the filter element, first remove the round cover 2, press down the push rod 3, and when the first wedge block 8 moves down, it pushes the second wedge block 9 to slide to the right, thereby causing the locking block 10 to move to the right and the second spring 11 to contract. When the locking block 10 disengages from the top of the filter element 6, the first spring 7 lifts the filter element 6, thereby popping the upper end of the filter element 6 out of the housing 1. Pull out the water pipe at the top of the filter element 6, and then hold the upper end of the filter element 6 to take it out of the housing 1. When installing a new filter element, press down on the push rod 3 to place the new filter element into the filter element positioning cylinder 5. Release the push rod 3, and the locking block 10 slides against the side of the filter element 6. Press the filter element down, and the first spring 7 is compressed. When the locking block 10 is higher than the side of the filter element 6, the second spring 11 pops the locking block 10 out. The locking block 10 blocks the top of the filter element 6, thus confining the filter element 6 inside the filter element positioning cylinder 5. At this time, the baffle 13 abuts against the side of the filter element 6. After connecting the water pipe at the top of the filter element 6, the round cover 2 can be put on.

[0023] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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 a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "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. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A filter element mounting mechanism, characterized in that: The filter element positioning cylinder (5) includes a filter element (6) installed inside the filter element positioning cylinder (5). A first spring (7) is installed at the bottom inside the filter element positioning cylinder (5). The bottom of the filter element (6) abuts against the first spring (7). A locking unit is provided on one side of the top of the filter element positioning cylinder (5). The locking unit includes a locking block (10). The bottom surface of the locking block (10) abuts against the top of the filter element (6).

2. The filter element mounting mechanism according to claim 1, characterized in that: The locking unit also includes a top rod guide sleeve (12), a top rod (15) is slidably connected inside the top rod guide sleeve (12), a baffle (13) is fixed at one end of the top rod (15), and the locking block (10) is fixedly connected to the baffle (13).

3. The filter element mounting mechanism according to claim 2, characterized in that: A second spring (11) is sleeved on the outside of the top rod (15). One end of the second spring (11) is connected to the baffle (13), and the other end of the second spring (11) is connected to the top rod guide sleeve (12).

4. The filter element mounting mechanism according to claim 3, characterized in that: The top rod (15) is fixed with a second wedge block (9) at one end away from the locking block (10). The top surface of the second wedge block (9) is slidably connected to a first wedge block (8). The top of the first wedge block (8) is fixed with a push rod (3). When the push rod (3) is pressed down, the first wedge block (8) and the second wedge block (9) slide relative to each other and drive the top rod (15) to slide.

5. The filter element mounting mechanism according to claim 4, characterized in that: The push rod (3) is perpendicular to the top rod (15).

6. The filter element mounting mechanism according to claim 4, characterized in that: The bottom surface of the first wedge block (8) is provided with at least two rectangular grooves (16), and the top surface of the second wedge block (9) is provided with at least two rectangular protrusions. The rectangular protrusions correspond one-to-one with the rectangular grooves (16), and the rectangular protrusions slide into the rectangular grooves (16).

7. The filter element mounting mechanism according to claim 4, characterized in that: Lubricating oil is provided on the contact surface between the second wedge block (9) and the first wedge block (8).

8. The filter element mounting mechanism according to claim 4, characterized in that: The filter positioning cylinder (5) is fixed inside the housing (1) of the water purifier. A cover plate (4) is fixed on the top of the housing (1). The top rod guide sleeve (12) is fixed on the bottom surface of the cover plate (4). A push rod guide sleeve (14) is also fixed on the bottom surface of the cover plate (4). The push rod (3) slides through the push rod guide sleeve (14) and the cover plate (4).

9. The filter element mounting mechanism according to claim 8, characterized in that: A round cover (2) is installed on the cover plate (4), and the round cover (2) is located on the upper side of the filter element positioning cylinder (5).

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