A filter with a filter cartridge that is easy to replace

Abstract

This utility model discloses a filter with easy-to-replace filter element, including an inlet pipe. The upper end of the inlet pipe is connected to a water tank, and a support foot is fixedly connected to the bottom of the water tank and fixed to the ground. A boss is also fixed at the center of the bottom of the water tank. The boss has a cavity and a through hole inside, and is surrounded by one end of an outlet pipe. A water pump is connected to the outlet pipe, and a water pressure detector is fixed to the water pump. This filter with easy-to-replace filter element uses a nested installation method to embed the filter element in the water tank, making installation and replacement quick and convenient. The filter element can be removed by opening the top cover. Simultaneously, the first water valve automatically closes to prevent water waste. This filter with easy-to-replace filter element is equipped with a water pressure detector: by detecting the water pressure flowing through the outlet pipe, the filtration capacity of the filter element is determined, thereby determining the service life of the filter element. When the water pressure is too low, it indicates that the filter element's service life has ended and a new filter element needs to be replaced.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a filter that facilitates filter element replacement. Background Technology

[0002] A filter is a screening and filtration device that is widely used in various industries such as power plants, chemicals, printing and dyeing, and papermaking. Most filters consist of a filtration mechanism and a sewage discharge mechanism. They have a simple structure and obvious advantages. However, in real life, frequent use of filters can amplify some of their shortcomings.

[0003] The main function of a filter is to filter water through a filter element. However, filter elements are consumables with a limited lifespan. The installation and removal of traditional filter elements require emptying the water tank beforehand to prevent leaks, which is quite troublesome. At the same time, it is impossible to accurately know the lifespan of the filter element. By the time the filter performance is found to be declining, the filter element is already unusable. Therefore, it is necessary to design a filter that can indicate the lifespan of the filter element and is easy to assemble and disassemble to better meet the actual needs of use. Utility Model Content

[0004] The purpose of this utility model is to provide a filter that facilitates filter element replacement, thereby solving the problems of inconvenient filter element replacement and inability to determine whether the filter element needs to be replaced as mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a filter that facilitates filter element replacement, comprising an inlet pipe, the upper end of which is connected to a water tank, and a support foot is fixedly connected to the bottom of the water tank and fixed to the ground. A boss is also fixed at the center of the bottom of the water tank, the boss having a cavity and a through hole inside, and the boss being surrounded by one end of an outlet pipe. A water pump is connected to the outlet pipe, and a water pressure detector is fixed to the water pump. A drain valve is located at the bottom of the water tank, and a filter element is located at the center of the water tank. A top cover is provided on the top of the water tank, and the top cover is fixed to the top of the filter element. The outlet pipe of the leftmost water tank is connected to a water storage tank. A filter screen is provided around the filter element, and the filter element is placed on the boss, with the filter nozzle inserted into the through hole. A first water valve is located below the boss, the crossbar of the first water valve is fixed in the cavity by a spring, and a rubber stopper is fixed at the center of the first water valve.

[0006] Preferably, the boss has four cavities, and the through hole is located in the center of the boss and communicates with the water tank. The boss at the bottom of the water tank is mainly used to fix the filter nozzle of the filter element. The cavities are mainly used to fix the first water valve. The filtered water can be released through the through hole to increase the water pressure and make the water pass through the outlet pipe quickly.

[0007] Preferably, the water tank is provided with a top cover, which can seal the entire water tank and fix the top of the filter element. At the same time, the bottom of the water tank is provided with a drain valve for quick water discharge. Sealing the water tank prevents dust from falling in and reduces the number of cleaning times. The drain valve is used to quickly release wastewater with too many impurities when cleaning the water tank.

[0008] Preferably, the water outlet pipe and the boss are sealed together with a sealing ring, and the water outlet pipe passes through the water pressure detector and is connected to the water pump. The water outlet pipe completely surrounds the boss and is connected with a sealing ring to prevent water leakage, so that the water pressure of the entire water outlet pipe can be effectively reflected on the water pressure detector. The water pump pressurizes the filtered water to enter the next water tank from the top of the water inlet pipe.

[0009] Preferably, the filter element is surrounded by a filter screen, which is fixed to the bottom of the water tank. The size of the filter nozzle corresponds to the size of the through hole, and the length of the filter nozzle does not exceed the length of the through hole. The filter screen is made of stainless steel, which is rust-proof and can also be used to initially filter large particles of impurities. Completely surrounding the filter element can prevent water pressure from deforming the filter element. The filter nozzle is inserted into the through hole to fix the filter element.

[0010] Preferably, the first water valve has four cross rods, each corresponding to a cavity, and the length of the cross rod exceeds the height of the boss. The spring is a compression spring, with one end fixed to the cross rod and the other end fixed to the bottom of the cavity, allowing the cross rod to move up and down within the cavity. The size of the rubber stopper corresponds to the size of the filter nozzle, and its position corresponds to the through hole. When the first water valve is fitted with the boss, the rubber stopper should completely block the through hole. The cross rod's cross section is placed within the cavity, and the cross section is sealed with a sealing material to ensure the cavity does not leak when closed.

[0011] Preferably, the bottom of the filter element is flush with the boss, and during installation, the filter element will squeeze the cross bar until the cross bar is flush with the top of the boss. The size of the rubber plug corresponds to the size of the through hole, and when the first water valve is attached to the boss, the rubber plug should be able to completely block the through hole to achieve a sealing effect. When the cross bar is squeezed, the spring is compressed, the rubber plug no longer blocks the through hole, and the filtered water in the filter nozzle normally enters the water outlet pipe through the through hole. When the cross bar is not squeezed, the spring bounces up the cross bar and makes it contact the top of the cavity to close the cavity, the rubber plug blocks the through hole, and cuts off the water flow in the water outlet pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the filter that is easy to replace the filter element adopts a nested installation method to embed the filter element in the water tank, which makes installation and replacement quick and convenient. The filter element can be taken out by opening the top cover. At the same time, the first water valve automatically closes to prevent water waste.

[0013] This filter, which facilitates cartridge replacement, is equipped with a water pressure detector: it determines the filtration capacity of the cartridge by detecting the water pressure flowing through the outlet pipe, thereby determining the lifespan of the cartridge. When the water pressure is too low, it indicates that the cartridge's lifespan has ended and a new cartridge needs to be replaced. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the filter of this utility model;

[0015] Figure 2 This is a front view structural diagram of the filter of this utility model;

[0016] Figure 3 This is a top view of the filter structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the left-side structure of the filter of this utility model;

[0018] Figure 5 The filter of this utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 6 The filter of this utility model Figure 3 Enlarged structural diagram at point B.

[0020] In the diagram: 1. Inlet pipe; 2. Water tank; 3. Support leg; 4. Boss; 401. Cavity; 5. Outlet pipe; 6. Water pump; 7. Water pressure detector; 8. Drain valve; 9. Filter element; 901. Filter screen; 902. Filter nozzle; 10. First water valve; 1001. Cross rod; 1002. Spring; 1003. Rubber stopper; 11. Top cover; 12. Water storage tank. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-6This utility model provides a technical solution: a filter that facilitates filter element replacement, including an inlet pipe 1, the upper end of which is connected to a water tank 2, and a support foot 3 is fixedly connected to the bottom of the water tank 2 and fixed to the ground. A boss 4 is also fixed at the center of the bottom of the water tank 2, the boss 4 having a cavity 401 and a through hole 402 inside, and the boss 4 being surrounded by one end of an outlet pipe 5. A water pump 6 is connected to the outlet pipe 5, and a water pressure detector 7 is fixed to the water pump 6. A drain valve 8 is also located at the bottom of the water tank 2. There is a filter element 9 in the center, and a top cover 11 is provided on the top of the water tank 2. The top cover 11 is fixed to the top of the filter element 9. The water outlet pipe 5 of the leftmost water tank 2 is connected to the water storage tank 12. A filter screen 901 is provided around the filter element 9, and the filter element 9 is placed on the boss 4. The filter nozzle 902 of the filter element 9 is inserted into the through hole 402. At the same time, a first water valve 10 is provided below the boss 4. The cross rod 1001 of the first water valve 10 is fixed in the cavity 401 by the spring 1002, and a rubber stopper 1003 is fixed in the center of the first water valve 10.

[0023] When using this filter, such as Figures 1-6 As shown, the entire device is first assembled. The inlet pipe 1, water tank 2 and its internal components, outlet pipe 5 and water pump 6 constitute a filtration mechanism. Three filtration mechanisms using filter elements 9 of different materials are placed in sequence. The inlet pipe 1 of the first filtration mechanism is connected to the faucet. After that, the inlet pipe 1 of each filtration mechanism is connected to the water pump 6 of the previous filtration mechanism. The water pump 6 of the last filtration mechanism is connected to the water storage tank 12. The assembly is completed.

[0024] The boss 4 has four cavities 401, and the through hole 402 is located in the center of the boss 4 and is connected to the water tank 2. The water outlet pipe 5 is sealed to the boss 4 with a sealing ring, and the water outlet pipe 5 passes through the water pressure detector 7 and is connected to the water pump 6. The filter element 9 is surrounded by a filter screen 901, and the filter screen 901 is fixed to the bottom of the water tank 2. The size of the filter nozzle 902 corresponds to the size of the through hole 402, and the length of the filter nozzle 902 does not exceed the length of the through hole 402. The top of the water tank 2 is provided with a top cover 11, which can seal the entire water tank 2 and can also fit the top of the filter element 9. The bottom of the water tank 2 is also provided with a drain valve 8 for quick water discharge.

[0025] To reduce filter wear caused by dust and other factors, the water tank 2 is designed as a semi-enclosed type. Before use, filter elements 9 of different materials such as metal and activated carbon are selected, and their tops are embedded in the top cover 11. The entire filter element 9 passes through the filter screen 901, and the filter nozzle 902 is inserted into the through hole 402 to complete the installation of the filter element 9. This design also makes it easy to disassemble. The filter element 9 can be removed by opening the top cover 11.

[0026] During use, the water in water tank 2 passes through filter screen 901 and filter element 9, and the filtered water flows out through filter nozzle 902 and enters water outlet pipe 5 through through hole 402. Water pressure detector 7 is installed on water outlet pipe 5 to monitor water pressure, thereby monitoring the service life of filter element 9. Filtered water enters water pump 6 from water outlet pipe 5. Water pump 6 pressurizes and forces the filtered water into the next water inlet pipe 1, so that it can quickly enter the next water tank 2 for filtration. The leftmost water pump 6 directly pressurizes and sends the filtered water into water storage tank 12 for storage. At the same time, water tank 2 is equipped with drain valve 8, which can quickly release wastewater containing a large amount of impurities when cleaning water tank 2.

[0027] The first water valve 10 is provided with four cross rods 1001, and the positions of the cross rods 1001 and the cavity 401 are one-to-one. The length of the cross rods 1001 must exceed the height of the boss 4. The spring 1002 is a compression type, and one end of the spring 1002 is fixed to the cross rod 1001, and the other end of the spring 1002 is fixed to the bottom of the cavity 401 so that the cross rods 1001 can move up and down in the cavity 401. The size of the rubber stopper 1003 corresponds to the size of the filter nozzle 902, and the position of the rubber stopper 1003 corresponds to the through hole 402. When the first water valve 10 is in contact with the boss 4, the rubber stopper 1003 should be able to completely block the through hole 402.

[0028] The function of the first water valve 10 is to prevent unfiltered water from entering the outlet pipe 5 during the installation and removal of the filter element 9. When the filter element 9 is installed, the filter nozzle 902 is first inserted into the through hole 402. At this time, the bottom of the filter element 9 begins to squeeze the cross bar 1001. The cross bar 1001 is tightly fitted with the cavity 401 and slowly descends to prevent leakage. Unfiltered water enters the upper part of the cavity 401, while the spring 1002 below the cavity 401 is compressed. At the same time, the rubber stopper 1003 on the first water valve 10 is pressed out of the through hole 402 by the cross bar 1001, so that the entire... The through hole 402 is open, allowing filtered water to enter the outlet pipe 5. During disassembly, the bottom of the filter element 9 no longer presses against the cross bar 1001, and the spring 1002 begins to reset, lifting the cross bar 1001 upwards. The water above the cavity 401 is pushed back into the water tank 2 by the cross bar. The rubber plug 1003 on the first water valve 10 blocks the through hole 402 upwards along with the cross bar 1001. After the spring 1002 resets, the rubber plug 1003 completely blocks the through hole 402, and no more water enters the outlet pipe 5 from the water tank 2. This is the working principle of the filter.

[0029] 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 filter with an easy-to-replace filter element, comprising an inlet pipe (1), characterized in that, The upper end of the inlet pipe (1) is connected to the water tank (2), and the bottom of the water tank (2) is fixedly connected to a support foot (3), which is fixed to the ground. At the same time, a boss (4) is fixed at the center of the bottom of the water tank (2). The boss (4) has a cavity (401) and a through hole (402) inside. The boss (4) is surrounded by one end of the outlet pipe (5), and a water pump (6) is connected to the outlet pipe (5). At the same time, a water pressure detector (7) is fixed on the water pump (6). The bottom of the water tank (2) also has a drain valve (8), and there is a filter element (9) in the center of the water tank (2). The top of the water tank (2) is equipped with a... The top cover (11) is fixed to the top of the filter element (9). The water outlet pipe (5) of the leftmost water tank (2) is connected to the water storage tank (12). The filter element (9) is surrounded by a filter screen (901). The filter element (9) is placed on the boss (4). The filter nozzle (902) of the filter element (9) is inserted into the through hole (402). At the same time, a first water valve (10) is provided below the boss (4). The cross rod (1001) of the first water valve (10) is fixed in the cavity (401) by a spring (1002). A rubber stopper (1003) is fixed in the center of the first water valve (10).

2. The filter with an easily replaceable filter element according to claim 1, characterized in that: The boss (4) has four cavities (401) and a through hole (402) is located at the center of the boss (4) and is connected to the water tank (2).

3. A filter with an easily replaceable filter element according to claim 1, characterized in that: The water tank (2) has a top cover (11) embedded on the top, and the top cover (11) can seal the entire water tank when it is closed. The top cover (11) can also be fitted onto the top of the filter element (9). At the same time, the bottom of the water tank (2) is also provided with a drain valve (8) for quick water discharge.

4. A filter with an easily replaceable filter element according to claim 1, characterized in that: The water outlet pipe (5) and the boss (4) are sealed together by a sealing ring, and the water outlet pipe (5) passes through the water pressure detector (7) and is connected to the water pump (6).

5. A filter with an easily replaceable filter element according to claim 1, characterized in that: The filter element (9) is surrounded by a filter screen (901), and the filter screen (901) is fixed to the bottom of the water tank (2). The size of the filter nozzle (902) corresponds to the size of the through hole (402), and the length of the filter nozzle (902) does not exceed the length of the through hole (402).

6. A filter with an easily replaceable filter element according to claim 1, characterized in that: The first water valve (10) is provided with 4 cross rods (1001), and the positions of the cross rods (1001) and the cavity (401) correspond one-to-one. The length of the cross rods (1001) must exceed the height of the boss (4). The spring (1002) is a compression spring, and one end of the spring (1002) is fixed on the cross rods (1001), and the other end of the spring (1002) is fixed to the bottom of the cavity (401) so that the cross rods (1001) can move up and down in the cavity (401).

7. A filter with an easily replaceable filter element according to claim 1, characterized in that: The bottom of the filter element (9) is flush with the boss (4), and during installation, the filter element (9) will press the cross rod (1001) until the cross rod (1001) is flush with the top of the boss (4).

8. A filter with an easily replaceable filter element according to claim 1, characterized in that: The size of the rubber plug (1003) corresponds to the size of the through hole (402), and when the first water valve (10) and the boss (4) are in contact, the rubber plug (1003) should be able to completely block the through hole (402) to achieve a sealing effect.

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