Filtering device of direct drinking machine

Abstract

The utility model relates to the technical field of direct drinking machines, and discloses a filtering device of a direct drinking machine, which comprises a filter, an end cover is arranged on the left side surface of the filter, a water outlet pipe is fixedly arranged on the left side surface of the end cover, a limiting sliding rail is arranged in the filter, a sliding block is arranged in the limiting sliding rail, and a filtering net cylinder is fixedly arranged in the sliding block. The water inlet pipe is connected with an external water source, water flow can enter the device through the water inlet pipe, then the water flow can be discharged from the water outlet pipe through the interior of the filter screen cylinder, and impurities and the like in the water can be left on the outer side face of the filter screen cylinder; when many impurities exist on the outer side face of the filter screen cylinder, an external water source is connected with the cleaning pipe, water flow can reach the interior of the filter screen cylinder through the cleaning pipe and flush the filter screen cylinder, then sewage can be discharged out of the device through the drainage pipe, the self-cleaning function can be efficiently achieved, and the frequency and cost of manual maintenance are reduced.

Description

Technical Field

[0001] This utility model relates to the field of direct drinking water machine technology, specifically a filtration device for a direct drinking water machine. Background Technology

[0002] A direct drinking water purifier is a household water purification device installed in homes, offices, and other places to purify tap water to a level suitable for direct drinking. It typically includes a multi-stage purification system, such as ultrafiltration, activated carbon filtration, and RO reverse osmosis membrane technology, to remove harmful substances, bacteria, viruses, and other contaminants from the water, providing a purer and safer drinking water source. Because impurities and bacteria may be introduced into the water during transmission, a filtration device is needed to remove them, making the water clean and uncontaminated, ensuring the safety and health of drinking water; furthermore, the filtered water can remove odors and unpleasant smells, thereby improving the taste of the drinking water.

[0003] According to a search, Chinese patent document CN219815564U discloses a filtration device for a direct drinking water machine. The device features a locking plate that allows for quick and easy attachment and removal of the first and second end caps to the filter cartridge without the need for tools. The locking rod and insertion port ensure stable engagement. However, while the locking plate and other components facilitate easy removal of the filter cartridge, the fact that the entire filtration device is installed inside the direct drinking water machine makes cleaning or replacing the filter cartridge cumbersome. Furthermore, the device lacks a self-cleaning function, and frequent disassembly and reassembly can lead to leaks at pipe connections, reducing overall efficiency and the lifespan of the filter cartridge. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a filtration device for a direct drinking water machine, which has the advantages of easy disassembly and assembly, good sealing, self-cleaning, and reduced maintenance frequency and cost, thus solving the aforementioned technical problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a filtration device for a direct drinking water machine, comprising a filter, an end cap installed on the left side of the filter, a water outlet pipe fixedly installed on the left side of the end cap, a limiting slide rail provided inside the filter, a slider installed inside the limiting slide rail, a filter screen cylinder fixedly installed inside the slider, an inlet pipe and a drain pipe fixedly installed on the outer side of the filter, and an end plate and a cleaning pipe fixedly installed on the right side of the filter.

[0008] Preferably, the filter has two sealing gaskets inside, and the two sealing gaskets are respectively installed on both ends of the filter cylinder.

[0009] With the above technical solution, when the filter screen cylinder is installed inside the filter, the two sealing gaskets can effectively seal both ends of the filter screen cylinder and limit its position. Then, when the end cap is installed, the sealing gaskets can be further tightened, thereby effectively improving the overall sealing performance of the device.

[0010] Preferably, a pressure plate is provided on the right side of the end cap, and the pressure plate is threadedly connected to the inside of the filter.

[0011] The above technical solution connects the end cap and pressure plate to the inside of the filter via threads. The pressure plate can press and fix the position of the sealing gasket and filter screen cylinder. The threaded connection is easy to install and remove, which facilitates maintenance and cleaning by staff and improves the overall convenience of the device.

[0012] Preferably, there are two of each of the limiting slide rails and the sliders, and the two sliders are slidably installed inside the two limiting slide rails respectively.

[0013] With the above technical solution, when installing the filter screen cylinder, the sliders on both sides are slidably installed inside the two limiting slide rails respectively. The limiting slide rails can effectively limit the position of the sliders and the filter screen cylinder to prevent them from shifting or falling off during operation. At the same time, it is also very convenient to disassemble the filter screen cylinder later, which improves the overall practicality of the device.

[0014] Preferably, an electric valve is installed inside the water outlet pipe, the water inlet pipe, the water drain pipe, and the cleaning pipe.

[0015] Through the above technical solution, the inlet pipe is connected to an external water source, allowing water to enter the device through the inlet pipe. The water then flows through the inside of the filter cylinder and exits through the outlet pipe, while impurities in the water are retained on the outer surface of the filter cylinder. When there are many impurities on the outer surface of the filter cylinder, the external water source is connected to a cleaning pipe, allowing water to reach the inside of the filter cylinder and rinse it. The wastewater is then discharged to the outside of the device through the drain pipe, thus achieving a highly efficient self-cleaning function and reducing the frequency and cost of manual maintenance. Furthermore, multiple electric valves can quickly respond and cut off or allow flow in multiple pipelines, ensuring the water flow during normal operation or backwashing, avoiding turbulence, and improving the overall automation efficiency of the device.

[0016] Preferably, both the end cap and the end plate have multiple slots on their outer surfaces.

[0017] With the above technical solution, when the device is installed inside the water purifier, multiple slots can be engaged with the machine's interior, ensuring that the device is installed in the correct position and avoiding the use of bolts or other parts for installation, thereby improving the ease of assembly and disassembly of the device.

[0018] Compared with the prior art, this utility model provides a filtration device for a direct drinking water machine, which has the following features:

[0019] Beneficial effects:

[0020] 1. This utility model connects the inlet pipe to an external water source, allowing water to enter the device through the inlet pipe. The water then flows through the inside of the filter cylinder and exits through the outlet pipe, while impurities in the water remain on the outer surface of the filter cylinder. When there are many impurities on the outer surface of the filter cylinder, the external water source is connected to a cleaning pipe, allowing water to reach the inside of the filter cylinder and rinse it. The wastewater is then discharged to the outside of the device through the drain pipe, thus achieving a highly efficient self-cleaning function and reducing the frequency and cost of manual maintenance. Furthermore, multiple electric valves can quickly respond and cut off or allow flow in multiple pipelines, ensuring the water flow during normal operation or backwashing, avoiding turbulence, and improving the overall automation efficiency of the device.

[0021] 2. This utility model slidably installs the sliders on both sides of the filter cylinder into the interior of two limiting slide rails. The limiting slide rails can effectively restrict the position of the sliders and the filter cylinder to prevent them from shifting or falling off during operation. By threading the end caps and pressure plates into the interior of the filter, the pressure plates can press and fix the positions of the sealing gaskets and the filter cylinder, while the two sealing gaskets can effectively seal both ends of the filter cylinder, ensuring the overall sealing performance and filtration effect of the device. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0023] Figure 2 This is a front cross-sectional view of the structural filter and other parts of this utility model;

[0024] Figure 3 This is a three-dimensional cross-sectional view of the structural filter and other parts of this utility model.

[0025] The components include: 1. Filter; 2. End cap; 3. Outlet pipe; 4. Limiting slide rail; 5. Slider; 6. Filter screen cylinder; 7. Inlet pipe; 8. Drain pipe; 9. End plate; 10. Cleaning pipe; 11. Sealing gasket; 12. Pressure plate; 13. Electric valve; 14. Slot. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-3 A filtration device for a direct drinking water machine includes a filter 1, an end cap 2 installed on the left side of the filter 1, a water outlet pipe 3 fixedly installed on the left side of the end cap 2, a limiting slide rail 4 provided inside the filter 1, a slider 5 installed inside the limiting slide rail 4, a filter screen cylinder 6 fixedly installed inside the slider 5, a water inlet pipe 7 and a drain pipe 8 fixedly installed on the outer side of the filter 1, and an end plate 9 and a cleaning pipe 10 fixedly installed on the right side of the filter 1.

[0028] Specifically, the filter 1 has two sealing gaskets 11 installed inside, which are respectively installed on both ends of the filter cylinder 6. The advantage is that, with this structure, when the filter cylinder 6 is installed inside the filter 1, the two sealing gaskets 11 can effectively seal both ends of the filter cylinder 6 and limit its position. Then, when the end cap 2 is installed, the sealing gaskets 11 can be further tightened, thereby effectively improving the overall sealing performance of the device.

[0029] Specifically, a pressure plate 12 is provided on the right side of the end cap 2, and the pressure plate 12 is threaded into the inside of the filter 1. The advantage is that by using this structure to thread the end cap 2 and the pressure plate 12 into the inside of the filter 1, the pressure plate 12 can press and fix the position of the sealing gasket 11 and the filter screen cylinder 6, and the threaded connection is easy to install and remove, which is convenient for staff to maintain and clean later, thus improving the overall convenience of the device.

[0030] Specifically, there are two limit rails 4 and two sliders 5, with the two sliders 5 slidably installed inside the two limit rails 4 respectively. The advantage of this structure is that when installing the filter cylinder 6, the sliders 5 on both sides are slidably installed inside the two limit rails 4 respectively. The limit rails 4 effectively restrict the position of the sliders 5 and the filter cylinder 6, preventing them from shifting or falling off during operation. It also makes disassembling the filter cylinder 6 much easier later, improving the overall practicality of the device.

[0031] Specifically, electric valves 13 are installed inside the outlet pipe 3, inlet pipe 7, drain pipe 8, and cleaning pipe 10. The advantages are: this structure connects the inlet pipe 7 to an external water source, allowing water to enter the device through the inlet pipe 7, then pass through the filter cylinder 6 and exit through the outlet pipe 3, while impurities in the water remain on the outer surface of the filter cylinder 6; when there are many impurities on the outer surface of the filter cylinder 6, the external water source is connected to the cleaning pipe 10, allowing water to reach the inside of the filter cylinder 6 and rinse it, after which the wastewater is discharged to the outside of the device through the drain pipe 8. This achieves efficient self-cleaning, reducing the frequency and cost of manual maintenance; furthermore, multiple electric valves 13 can quickly respond and cut off or allow flow in multiple pipes, ensuring the water flow during normal operation or backwashing, avoiding turbulence, and improving the overall automation efficiency of the device.

[0032] Specifically, both the end cap 2 and the end plate 9 have multiple slots 14 on their outer sides. The advantage is that, with this structure, when the device is installed inside the water purifier, the multiple slots 14 can be correspondingly engaged inside the machine, thus ensuring that the device is installed in the correct position and avoiding the use of bolts or other parts for installation, thereby improving the convenience of assembling and disassembling the device.

[0033] In use, by connecting the inlet pipe 7 to an external water source, water flows into the device through the inlet pipe 7. The water then flows through the inside of the filter cylinder 6 and is discharged from the outlet pipe 3, while impurities in the water are retained on the outer surface of the filter cylinder 6. When there are many impurities on the outer surface of the filter cylinder 6, the external water source is connected to the cleaning pipe 10. Water flows through the cleaning pipe 10 to the inside of the filter cylinder 6 and rinses it. The wastewater is then discharged to the outside of the device through the drain pipe 8, thus achieving a highly efficient self-cleaning function and reducing the frequency and cost of manual maintenance. Furthermore, multiple electric valves 13 can quickly respond and cut off or allow flow in multiple pipelines, thereby ensuring... The system ensures the water flow during normal operation or backwashing, preventing turbulence and improving overall automation efficiency. By sliding the sliders 5 on both sides of the filter cylinder 6 into the two limiting rails 4, the limiting rails 4 effectively restrict the positions of the sliders 5 and the filter cylinder 6, preventing displacement or detachment during operation. By threading the end caps 2 and pressure plates 12 into the filter 1, the pressure plates 12 press and fix the sealing gaskets 11 and the filter cylinder 6, while the two sealing gaskets 11 effectively seal both ends of the filter cylinder 6, ensuring overall sealing and filtration efficiency.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filtration device for a direct drinking water machine, comprising a filter (1), characterized in that: The filter (1) is equipped with an end cap (2) on its left side, and an outlet pipe (3) is fixedly installed on the left side of the end cap (2). The filter (1) is provided with a limiting slide rail (4), and a slider (5) is installed inside the limiting slide rail (4). A filter screen cylinder (6) is fixedly installed inside the slider (5). An inlet pipe (7) and a drain pipe (8) are fixedly installed on the outer side of the filter (1). An end plate (9) and a cleaning pipe (10) are fixedly installed on the right side of the filter (1).

2. The filtration device for a direct drinking water machine according to claim 1, characterized in that: The filter (1) is provided with two sealing gaskets (11) inside, and the two sealing gaskets (11) are respectively installed on both ends of the filter cylinder (6).

3. The filtration device for a direct drinking water machine according to claim 1, characterized in that: A pressure plate (12) is provided on the right side of the end cap (2), and the pressure plate (12) is threadedly connected to the inside of the filter (1).

4. The filtration device for a direct drinking water machine according to claim 1, characterized in that: The number of the limiting slide rail (4) and the slider (5) are both provided in two, and the two sliders (5) are respectively slidably installed inside the two limiting slide rails (4).

5. The filtration device for a direct drinking water machine according to claim 1, characterized in that: Electric valves (13) are installed inside the water outlet pipe (3), the water inlet pipe (7), the water outlet pipe (8), and the cleaning pipe (10).

6. The filtration device for a direct drinking water machine according to claim 1, characterized in that: Multiple slots (14) are provided on the outer sides of both the end cap (2) and the end plate (9).

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