An end-of-line drinking water purification device

Abstract

The utility model discloses a kind of terminal drinking water purification devices, it is characterized by: including a cylindrical shell, a filter core, a water distribution mechanism and a sewage discharge bottom cover, the both ends of the cylindrical shell are with an opening, filter core is installed in the cylindrical shell and with its side wall gap space, water distribution mechanism is sealed and installed in one end of cylindrical shell, sewage discharge bottom cover one end is sealed and installed in the other end of cylindrical shell by a clamp sealing structure, the other end of sewage discharge bottom cover has a sewage discharge port that is communicated with the above gap space.The utility model significantly reduces the effort challenge faced by individual such as small force, such as weak user or female operator, without the aid of additional complex tools or others assistance, improve the overall user-friendliness of device, and reduce the inconvenience in daily use scene, reduce time cost and operation threshold, improve maintenance convenience and practicality.

Description

Technical Field

[0001] This utility model specifically relates to a terminal drinking water purification device. Background Technology

[0002] CN 118058110 A discloses a split-type drinking water purification device, including at least two filter cartridges with outer shells, filter elements placed inside the filter cartridges, and at least two water distributors. Each water distributor includes two non-communicating tee pipes, each of which has a connecting structure at its interface. The water distributors are connected by two intermediate connectors. Each filter cartridge has two inlet and outlet ports at its upper end, which are respectively connected to a branch interface of the two tee pipes of the water distributor. A sewage discharge device is provided at the bottom of the filter cartridge. Each filter cartridge is equipped with a filter element, which can be connected in series or parallel to achieve a step-by-step purification filtration process, increasing the water flow rate of the water purifier. The pin-type connection method facilitates installation and replacement, preventing stripping and cracking caused by threaded joint replacement. Tool-free filter element replacement makes installation and maintenance convenient.

[0003] As shown in the attached drawings of the utility model specification. Figure 1 As shown, the sewage discharge device in this technical solution includes a bottom cover connected to the outer casing. This bottom cover achieves a sealed connection with one end of the filter cartridge through the engagement of internal and external threads. While this structure provides reliable sealing performance and effectively avoids the risk of water leakage or contaminant spillage, its assembly and disassembly process requires a high level of strength from the operator. Specifically, because the threaded connection requires applying a large torque through rotation to ensure a tight seal, this may not only lead to thread stripping or slight deformation of the outer casing during initial installation, but also, during subsequent maintenance, when the user needs to remove the bottom cover to replace the filter cartridge, especially when water pressure or dirt has accumulated inside the filter cartridge, the disassembly resistance will further increase. This makes it a significant challenge for individuals with less strength, such as slender users or female operators, and may even require additional tools or assistance from others. This reduces the overall user-friendliness of the device to some extent and causes inconvenience in daily use scenarios, such as increasing time costs and operational barriers in self-maintenance in homes or small locations. Utility Model Content

[0004] The purpose of this invention is to provide a terminal drinking water purification device.

[0005] The technical solution of this utility model is as follows:

[0006] A point-of-use drinking water purification device includes a cylindrical shell, a filter element, a water distribution mechanism, and a drain cover. The cylindrical shell has an opening at both ends. The filter element is installed inside the cylindrical shell and has a gap space with its side wall. The water distribution mechanism is sealed at one end of the cylindrical shell. One end of the drain cover is sealed to the other end of the cylindrical shell by a clamp sealing structure. The other end of the drain cover has a drain port communicating with the aforementioned gap space.

[0007] The aforementioned water distribution mechanism has a first three-way pipe and a second three-way pipe. The first three-way pipe and the second three-way pipe are not connected to each other. The water outlet end of the aforementioned filter element is connected to one of the three interfaces of the first three-way pipe, and the aforementioned gap space is connected to one of the three interfaces of the second three-way pipe.

[0008] The aforementioned clamp sealing structure includes a clamp, a first edge, a second edge, and an O-ring. The two ends of the clamp are connected by bolts. The first edge protrudes from the periphery of the other end of the cylindrical outer shell, and the second edge protrudes from the periphery of one end of the drain cover. The O-ring is located between the first edge and the second edge. The clamp is installed outside the first edge and the second edge so that the first edge, the O-ring, and the second edge are tightly wrapped and squeezed by the tightening of the bolts, thereby achieving a seal.

[0009] In a preferred embodiment of this utility model, the end of the first edge away from the drain cover is provided with a first inclined surface, and the end of the second edge away from the cylindrical outer shell is provided with a second inclined surface. The shape of the inner sidewall of the clamp is adapted to both the first and second inclined surfaces, so that when the bolt is tightened, the clamp simultaneously clamps the first inclined surface of the first edge and the second inclined surface of the second edge, thereby causing the first edge and the second edge to simultaneously compress the O-ring seal to achieve a seal.

[0010] In a preferred embodiment of this utility model, the water distribution mechanism is provided with a pressure relief valve that communicates with the gap space.

[0011] In a preferred embodiment of this utility model, the drain outlet of the drain cover is provided with a quick-connect drain connector.

[0012] In a preferred embodiment of this utility model, the sidewalls of the filter element are connected to the gap space from top to bottom.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model employs a clamp sealing structure to seal the drain cover at the other end of a cylindrical outer shell. This structure includes a clamp, a first edge, a second edge, and an O-ring. By tightening bolts, the first edge, O-ring, and second edge are tightly gripped and compressed, achieving a reliable sealing effect. Simultaneously, it allows users to quickly disassemble and install the drain cover by simply tightening and loosening the bolts. This effectively avoids the drawbacks of traditional threaded connections, which require significant operator strength during assembly and disassembly. It also avoids the problems of thread stripping or slight deformation of the outer shell during initial installation due to the large torque required for threaded connections, and the increased disassembly resistance caused by water pressure or dirt accumulation inside the filter cartridge during subsequent maintenance. This significantly reduces the strenuous challenges faced by individuals with less strength, such as slender users or female operators. It eliminates the need for additional complex tools or assistance from others, improving the overall user-friendliness of the device and reducing inconvenience in daily use scenarios. For example, in home or small-scale self-maintenance, it lowers time costs and operational barriers, enhancing maintenance convenience and practicality.

[0015] 2. The first edge and the second edge of this utility model are respectively provided with a first inclined surface and a second inclined surface. The inner sidewall of the clamp is adapted to the shape of the inclined surface, which further ensures that the first edge and the second edge are evenly squeezed to form the O-ring after tightening, thereby improving the sealing stability and durability.

[0016] 3. The pressure relief valve on the water distribution mechanism of this utility model facilitates the release of pressure in the gap space, reducing the operational risks during disassembly.

[0017] 4. The drain outlet of the drain cover of this utility model is equipped with a quick-connect drain connector, which facilitates quick connection of the drain pipe and improves the drain efficiency.

[0018] 5. The filter element sidewall of this utility model is connected to the gap space from top to bottom, ensuring that the gap space between the filter element and the outer shell is evenly distributed, thereby improving the filtration uniformity and the overall purification performance of the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural cross-sectional view of the present invention. Detailed Implementation

[0020] The technical solution of this utility model will be further explained and described below with reference to specific embodiments and accompanying drawings.

[0021] like Figure 1As shown, a terminal drinking water purification device includes a cylindrical outer shell 1, a filter element 2, a water distribution mechanism 3, and a drain cover 4. The cylindrical outer shell 1 has an opening at both ends. The filter element 2 is installed inside the cylindrical outer shell 1 and has a gap space 10 between it and its side wall. The side wall of the filter element 2 is connected to the gap space 10 from top to bottom, ensuring that the gap space 10 between the filter element 2 and the cylindrical outer shell 1 is evenly distributed, improving filtration uniformity and the overall purification performance of the device. The water distribution mechanism 3 is sealed at one end of the cylindrical outer shell 1. One end of the drain cover 4 is sealed to the other end of the cylindrical outer shell 1 by a clamp sealing structure 11. The other end of the drain cover 4 has a drain port 40 communicating with the aforementioned gap space 10. The drain port 40 is equipped with a quick-connect drain connector 41 for easy and rapid connection to a drain pipe, improving drainage efficiency.

[0022] The aforementioned water distribution mechanism 3 has a first three-way pipe 31 and a second three-way pipe 32, which are not connected to each other. The water outlet of the filter element 2 is connected to one of the three ports of the first three-way pipe 31, and the aforementioned gap space 10 is connected to one of the three ports of the second three-way pipe 32. Furthermore, the water distribution mechanism 3 is equipped with a pressure relief valve 30 connected to the gap space 10, facilitating the release of pressure within the gap space 10 and reducing operational risks during disassembly.

[0023] The aforementioned clamp sealing structure 11 includes a clamp 111, a first edge 112, a second edge 113, and an O-ring 114. The two ends of the clamp 111 are connected by bolts (not shown in the figure). The first edge 112 protrudes from the periphery of the other end of the cylindrical outer shell 1, and the second edge 113 protrudes from the periphery of one end of the drain cover 4. The O-ring 114 is disposed between the first edge 112 and the second edge 113. The clamp 111 is installed outside the first edge 112 and the second edge 113 so that the first edge 112, the O-ring 114, and the second edge 113 are tightly wrapped and squeezed by the tightening of the bolts, thereby achieving a seal. This sealing effect is reliable, and it allows users to quickly disassemble and install the drain cover 4 by simply tightening and loosening the bolts. This effectively avoids the drawbacks of existing technologies with internal and external threaded connections, which require significant operator strength during assembly and disassembly. It also avoids the problems of thread stripping or slight deformation of the outer shell during initial installation due to the large torque required for threaded connections, and the increased disassembly resistance caused by water pressure or dirt accumulation inside the filter cartridge during subsequent maintenance. This significantly reduces the strenuous challenges faced by individuals with less strength, such as slender users or female operators, eliminating the need for additional complex tools or assistance. This improves the overall user-friendliness of the device and reduces inconvenience in daily use scenarios, such as home or small-scale self-maintenance, lowering time costs and operational barriers, and enhancing maintenance convenience and practicality.

[0024] Preferably, the end of the first edge 112 away from the drain cover 4 has a first inclined surface 1120, and the end of the second edge 113 away from the cylindrical outer shell 1 has a second inclined surface 1130. The shape of the inner sidewall of the clamp 111 is adapted to both the first inclined surface 1120 and the second inclined surface 1130, so that when the bolt is tightened, the clamp 111 simultaneously clamps the first inclined surface 1120 of the first edge 112 and the second inclined surface 1130 of the second edge 113, thereby causing the first edge 112 and the second edge 113 to simultaneously compress the O-ring seal 114 to achieve a seal. This structure further ensures that the first edge 112 and the second edge 113 uniformly compress the O-ring seal 114 after tightening, improving sealing stability and durability.

[0025] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.

Claims

1. A point-of-use water purification device, characterized by: The device includes a cylindrical outer shell, a filter element, a water distribution mechanism, and a drain cover. The cylindrical outer shell has an opening at both ends. The filter element is installed inside the cylindrical outer shell and has a gap space with its side wall. The water distribution mechanism is sealed at one end of the cylindrical outer shell. One end of the drain cover is sealed to the other end of the cylindrical outer shell by a clamp sealing structure. The other end of the drain cover has a drain port that communicates with the aforementioned gap space. The aforementioned water distribution mechanism has a first three-way pipe and a second three-way pipe. The first three-way pipe and the second three-way pipe are not connected to each other. The water outlet of the aforementioned filter element is connected to one of the three interfaces in the first three-way pipe, and the aforementioned gap space is connected to one of the three interfaces in the second three-way pipe. The aforementioned clamp sealing structure includes a clamp, a first edge, a second edge, and an O-ring. The two ends of the clamp are connected by bolts. The first edge protrudes from the periphery of the other end of the cylindrical outer shell, and the second edge protrudes from the periphery of one end of the drain cover. The O-ring is located between the first edge and the second edge. The clamp is installed outside the first edge and the second edge so that the first edge, the O-ring, and the second edge are tightly wrapped and squeezed by the tightening of the bolts, thereby achieving a seal.

2. An end-of-line drinking water purification device as claimed in claim 1, characterized in that: The first edge has a first inclined surface at the end away from the drain cover, and the second edge has a second inclined surface at the end away from the cylindrical outer shell. The shape of the inner wall of the clamp is adapted to both the first and second inclined surfaces, so that when the bolt is tightened, the clamp simultaneously clamps the first inclined surface of the first edge and the second inclined surface of the second edge, thereby causing the first and second edges to simultaneously compress the O-ring seal to achieve a seal.

3. The point-of-use drinking water purification device as described in claim 1, characterized in that: The water distribution mechanism is equipped with a pressure relief valve that connects to the gap space.

4. An end-of-line drinking water purification device as claimed in claim 1, characterized in that: The drain outlet of the drain cover is equipped with a quick-connect drain connector.

5. An end-of-line drinking water purification device as claimed in any one of claims 1 to 4, characterized in that: The sidewalls of the filter element are connected to the gap space from both top and bottom.

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