A reverse osmosis filter cartridge assembly that is easy to disassemble

Abstract

The utility model provides a kind of reverse osmosis filter element assembly convenient to dismount, it is related to water purification equipment field, including shell;The shell is cylindrical, one end is open, the other end is closed, wherein the closed one end is connected with first pipe sleeve, the open one end is provided with inner flange, shell outside is provided with outer flange, and shell outside is provided with strip-shaped sliding slot and L-shaped sliding slot;Preloading frame is fixed on the shell outside;Shell inside is filled with filter element body;The shell outside is equipped with positioning member, and positioning member includes sleeve, directional sliding plate is connected in sleeve, and the end of directional sliding plate is provided with triangular barb, and directional sliding plate is slidably connected in strip-shaped sliding slot;The filter element assembly is well sealed after assembly, and the operation steps required for dismounting operation when filter element is replaced are simple, and additional tools such as wrench are not needed;The problem that the existing filter element assembly is replaced with low dismounting efficiency is solved.

Description

Technical Field

[0001] This utility model belongs to the field of water purification equipment, and more specifically, it relates to a reverse osmosis filter cartridge assembly that is easy to disassemble and assemble. Background Technology

[0002] Reverse osmosis filter cartridges are widely used in household water applications. They effectively remove bacteria, viruses, heavy metal ions, organic matter, and other impurities from water, significantly improving water quality and ensuring household water safety. Over time, the filter cartridges become clogged due to trapping a large amount of impurities, reducing their filtration efficiency. To maintain water quality, the filter cartridges need to be replaced promptly. Currently, disassembling filter cartridges typically requires specialized tools, involves cumbersome procedures, and can easily damage the cartridges, increasing usage costs and maintenance difficulty. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a reverse osmosis filter element assembly that is easy to disassemble and install, thereby solving the problem of low disassembly efficiency when replacing existing filter element assemblies.

[0004] This utility model provides a reverse osmosis filter element assembly that is easy to assemble and disassemble, achieved through the following specific technical means: A reverse osmosis filter cartridge assembly that is easy to assemble and disassemble includes a housing; the housing is cylindrical, open at one end and closed at the other end, wherein the closed end is connected to a first sleeve, the open end is provided with an inner flange, the outer side of the housing is provided with an outer flange, and the outer side of the housing is provided with a strip-shaped groove and an L-shaped groove; a pre-assembly frame is fixed to the outer side of the housing; a filter cartridge body is filled inside the housing; a positioning element is fitted on the outer side of the housing, the positioning element includes a sleeve, a directional sliding plate is connected inside the sleeve, the end of the directional sliding plate is provided with a triangular barb, and the directional sliding plate is slidably connected within the strip-shaped groove; a limiting ring is also fitted on the outer side of the housing, and the directional sliding plate is fitted inside the limiting ring; an end cap is covered on one side of the open side of the housing, a second sleeve is connected to one side of the end cap, and a locking cylinder is provided on the other side, the locking cylinder is locked into the inner flange; a locking groove is provided around the end cap, the directional sliding plate is locked into the locking groove, and the triangular barb is hooked on one end face of the end cap.

[0005] Furthermore, a snap-in slider is provided inside the limiting ring, and the snap-in slider is slidably connected within the L-shaped groove.

[0006] Furthermore, a load-bearing ring is provided on the sleeve; a second spring is sleeved on the outer side of the outer shell, with both ends of the second spring contacting the load-bearing ring and the outer flange respectively, and the second spring is in a compressed state.

[0007] Furthermore, an elastic sealing ring is provided between the outer shell and the end cap, and the elastic sealing ring is fitted onto the locking cylinder.

[0008] Furthermore, a guide slope is provided on one side of the insertion groove on the end cap.

[0009] Furthermore, a first spring is placed inside the outer casing. The first spring is located inside the locking cylinder, and its two ends are in contact with the filter element body and the end cap, respectively. The first spring is in a compressed state.

[0010] Compared with the prior art, the present invention has the following beneficial effects: This invention uses a triangular barb on a positioning component to hook the end cap, and a second spring's elastic force on the positioning component to tighten the end cap onto the opening of the outer shell. An elastic sealing ring further seals the area to prevent leakage. When disassembling the filter element assembly, simply slide the locking slider of the limiting ring to the other end of the L-shaped groove, then rotate one side of the end cap's guide slope to the triangular barb. Next, remove the end cap outwards along the outer shell's axis. Guided by the guide slope, the triangular barb automatically opens outwards, allowing the end cap to be removed from the opening of the outer shell. Finally, the filter element body can be removed and replaced. This filter element assembly provides excellent sealing after assembly, and the disassembly and assembly procedures for filter element replacement are simple and do not require additional tools such as wrenches. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is an exploded view of this utility model.

[0013] Figure 3 This is a schematic diagram of the interior of the outer casing of this utility model.

[0014] Figure 4 This is a structural schematic diagram of the outer shell of this utility model.

[0015] Figure 5 This is a structural schematic diagram of the positioning component of this utility model.

[0016] Figure 6 A schematic diagram of the limiting ring of this utility model.

[0017] Figure 7 This is a schematic diagram of the end cap structure of this utility model.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Outer shell; 11. First sleeve; 12. Inner flange; 13. Outer flange; 14. Strip groove; 15. L-shaped groove; 2. Pre-assembly frame; 3. Filter element body; 4. First spring; 5. Positioning component; 51. Sleeve; 52. Orientation slide plate; 53. Triangular barb; 54. Load-bearing ring; 6. Limiting ring; 61. Snap-in slider; 7. End cap; 71. Second sleeve; 72. Positioning sleeve; 73. Snap-in groove; 74. Guide slope; 8. Elastic sealing ring; 9. Second spring. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] Example: As attached Figure 1 To be continued Figure 7 As shown: This utility model provides a reverse osmosis filter element assembly that is easy to assemble and disassemble, including a shell 1; the shell 1 is cylindrical, open at one end and closed at the other end, wherein the closed end is connected to a first sleeve 11, the open end is provided with an inner flange 12, the outer side of the shell 1 is provided with an outer flange 13, and the outer side of the shell 1 is provided with a strip-shaped sliding groove 14 and an L-shaped sliding groove 15; a pre-assembly frame 2 is fixed to the outer side of the shell 1; the filter element body 3 is filled inside the shell 1; the feature is that: a positioning member 5 is sleeved on the outer side of the shell 1, the positioning member 5 includes a sleeve 51, and the sleeve 51 is connected to the inner side of the first sleeve 1. A directional sliding plate 52 is attached, and a triangular barb 53 is provided at the end of the directional sliding plate 52. The directional sliding plate 52 is slidably connected within the strip-shaped sliding groove 14. A limiting ring 6 is also fitted on the outside of the outer shell 1, and the directional sliding plate 52 is fitted inside the limiting ring 6. An end cap 7 is covered on one side of the opening of the outer shell 1. A second tube sleeve 71 is connected to one side of the end cap 7, and a locking cylinder 72 is provided on the other side. The locking cylinder 72 is inserted into the inner flange 12. A locking groove 73 is opened around the end cap 7, and the directional sliding plate 52 is locked in the locking groove 73. The triangular barb 53 is hooked on one end face of the end cap 7.

[0021] Among them, such as Figure 5 As shown, a latching slider 61 is provided inside the limiting ring 6, as... Figure 1 As shown, the snap-in slider 61 is slidably connected within the L-shaped groove 15; the directional slide plate 52 of the positioning member 5 has a certain elasticity and can be opened outwards when there is no external force restriction, but due to the limiting effect of the limiting ring 6, the directional slide plate 52 cannot be opened outwards at this time, and the end cover 7 is restricted to the opening end of the outer shell 1 by the triangular barb 53; if you want to remove the restriction on the end cover 7, you can slide the snap-in slider 61 of the limiting ring 6 to the other end of the L-shaped groove 15, and the directional slide plate 52 can be opened outwards, thereby releasing the restriction of the end cover 7 by the triangular barb 53.

[0022] Among them, such as Figure 1 As shown, a bearing ring 54 is provided on the sleeve 51; a second spring 9 is sleeved on the outer side of the outer shell 1, and the two ends of the second spring 9 are in contact with the bearing ring 54 and the outer flange 13 respectively, and the second spring 9 is in a compressed state; through the elastic force of the second spring 9 on the positioning member 5, its triangular barb 53 is locked on the end cover 7, and the end cover 7 covers the opening end of the outer shell 1.

[0023] Among them, such as Figure 3 As shown, an elastic sealing ring 8 is placed between the outer shell 1 and the end cover 7, and the elastic sealing ring 8 is fitted onto the locking cylinder 72; through the sealing effect of the elastic sealing ring 8, water is prevented from leaking from the joint between the outer shell 1 and the end cover 7; the elastic sealing ring 8 can be replaced after long-term use.

[0024] Among them, such as Figure 7 As shown, a guide slope 74 is also provided on one side of the insertion groove 73 on the end cover 7. When the end cover 7 is closed on the opening end of the outer shell 1, the triangular barb 53 of the positioning member 5 is locked in the insertion groove 73 of the end cover 7, but deviates from the guide slope 74. When the end cover 7 is removed from the opening end of the outer shell 1, in addition to the movable positioning member 5 and the limiting ring 6, the end cover 7 needs to be rotated first, so that one side of the guide slope 74 is rotated to the triangular barb 53. When the end cover 7 is taken out, the guide slope 74 guides the triangular barb 53 to open automatically to the outside, so that the end cover 7 can be removed along the axial direction of the outer shell 1.

[0025] Among them, such as Figure 3 As shown, a first spring 4 is also placed inside the outer casing 1. The first spring 4 is located inside the positioning cylinder 72. The two ends of the first spring 4 are in contact with the filter element body 3 and the end cap 7 respectively, and the first spring 4 is in a compressed state. The first spring 4 presses against one end of the filter element body 3, positioning it inside the outer casing 1.

[0026] The specific usage and function of this embodiment are as follows: In this invention, the directional sliding plate 52 of the positioning component 5 has a certain elasticity and can be opened outwards when there is no external force. However, due to the limiting effect of the limiting ring 6, the directional sliding plate 52 cannot be opened outwards at this time. The end of the directional sliding plate 52 is locked in the slot 73 of the end cover 7 and hooked on the outer end face of the end cover 7 by the triangular barb 53. Under the elastic force of the second spring 9 on the positioning component 5, the triangular barb 53 pulls the end cover 7, so that the end cover 7 covers the opening end of the outer shell 1, and the joint between the outer shell 1 and the end cover 7 is sealed by the elastic sealing ring 8. Sealing; to remove the restriction on end cap 7, slide the locking slider 61 of the limiting ring 6 to the other end of the L-shaped groove 15, and the directional slide plate 52 can open outward, thereby releasing the restriction of the triangular barb 53 on end cap 7; rotate end cap 7, and rotate one side of the guide slope 74 to the triangular barb 53. When removing end cap 7 outward, the guide slope 74 guides the triangular barb 53 to open outward automatically, so that end cap 7 can be removed along the axial direction of housing 1; then remove the first spring 4 from housing 1, and finally remove the filter element body 3 for replacement.

[0027] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. A reverse osmosis filter cartridge assembly that is easy to assemble and disassemble, comprising a housing (1); the housing (1) is cylindrical, open at one end and closed at the other end, wherein the closed end is connected to a first sleeve (11), the open end is provided with an inner flange (12), the outer side of the housing (1) is provided with an outer flange (13), and the outer side of the housing (1) is provided with a strip-shaped groove (14) and an L-shaped groove (15); a pre-assembly frame (2) is fixed to the outer side of the housing (1); a filter cartridge body (3) is filled inside the housing (1); characterized in that: The outer shell (1) is fitted with a positioning element (5), which includes a sleeve (51). A directional sliding plate (52) is connected inside the sleeve (51). A triangular barb (53) is provided at the end of the directional sliding plate (52). The directional sliding plate (52) is slidably connected in the strip groove (14). A limiting ring (6) is also fitted on the outer shell (1). The directional sliding plate (52) is fitted inside the limiting ring (6). An end cap (7) is covered on one side of the opening of the outer shell (1). A second tube sleeve (71) is connected on one side of the end cap (7). A locking cylinder (72) is provided on the other side. The locking cylinder (72) is locked into the inner flange (12). A locking groove (73) is opened around the end cap (7). The directional sliding plate (52) is locked in the locking groove (73). The triangular barb (53) is hooked on one end face of the end cap (7).

2. The reverse osmosis filter cartridge assembly that is easy to assemble and disassemble as described in claim 1, characterized in that: The limiting ring (6) is provided with a snap-in slider (61), which is slidably connected in the L-shaped groove (15).

3. The reverse osmosis filter cartridge assembly as described in claim 1, characterized in that: A load-bearing ring (54) is provided on the sleeve (51); a second spring (9) is sleeved on the outer side of the outer shell (1), and the two ends of the second spring (9) are in contact with the load-bearing ring (54) and the outer flange (13) respectively, and the second spring (9) is in a compressed state.

4. The reverse osmosis filter cartridge assembly as described in claim 1, characterized in that: An elastic sealing ring (8) is placed between the outer shell (1) and the end cap (7), and the elastic sealing ring (8) is fitted onto the locking cylinder (72).

5. A reverse osmosis filter cartridge assembly that is easy to assemble and disassemble as described in claim 1, characterized in that: The end cap (7) also has a guide slope (74) on one side of the slot (73).

6. The reverse osmosis filter cartridge assembly as described in claim 1, characterized in that: A first spring (4) is also placed inside the outer casing (1). The first spring (4) is located inside the locking cylinder (72). The two ends of the first spring (4) are in contact with the filter body (3) and the end cap (7) respectively, and the first spring (4) is in a compressed state.

Images