A water purifier based on a folded polypropylene carbon rod filter element

Abstract

The application relates to the technical field of water purifiers, and discloses a water purifier based on a folded polypropylene carbon rod filter element, which comprises a shell and four supporting cylinders arranged in the shell; a filter element cylinder is threadedly connected to the lower end of each supporting cylinder; a PP filter element, a folded polypropylene carbon rod filter element, a reverse osmosis filter element and an activated carbon filter element are arranged in the inner side of the filter element cylinder; a booster pump is fixed to the inner bottom wall of the shell; the inlet of the booster pump is connected with the supporting cylinder of the second filter element cylinder through a pipeline and an electromagnetic valve; the discharge port of the booster pump is connected with the supporting cylinder of the third filter element cylinder through an electromagnetic valve and a pipeline; the water purifier further comprises a pushing part which is inlaid on the inner bottom wall of the filter element cylinder; and a pulling and cleaning part which is arranged on the outer side of a storage element; when the filter element is replaced, the user only needs to press the external pull ring downward, and the first piston and the second piston are matched to utilize the pressure of the pre-stored water to push the filter element upward from the bottom, so that the filter element is easily separated from the close insertion with the positioning pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water purifiers, and particularly relates to a water purifier based on a folded polypropylene carbon rod filter element. BACKGROUND

[0002] The folded polypropylene carbon rod filter element is a filter element for filtering water in a water purifier, which needs to be installed in the water purifier to cooperate with other filter elements to achieve water filtration and purification. The water purifier can be composed of a folded polypropylene carbon rod filter element, a PP cotton filter element, an activated carbon filter element and a reverse osmosis (RO) filter element to form multi-stage filtration, remove harmful substances such as impurities, residual chlorine, heavy metals and bacteria in water, and provide clean and safe drinking water.

[0003] However, the folded polypropylene carbon rod filter element, the PP cotton filter element, the activated carbon filter element and the reverse osmosis (RO) filter element in the water purifier form multi-stage filtration, which is a consumable product and needs to be replaced regularly to ensure the purification effect on water.

[0004] The current filter element is usually inserted into the filter element cylinder and fixed and positioned by the friction with the positioning pipe. Generally, the filter element is combined with the positioning pipe tightly, and a large force needs to be exerted to pull out the old filter element when the user replaces it. Since the opening of the filter element cylinder and the support cylinder is small, it is not convenient to exert force, and the operation of replacing the filter element is time-consuming and laborious. SUMMARY

[0005] The present application provides a water purifier based on a folded polypropylene carbon rod filter element, which can make the user more convenient and fast to remove and replace the filter element, and reduce the difficulty of removing the filter element.

[0006] To solve the above technical problems, the technical scheme of the present application is as follows:

[0007] In a first aspect, a water purifier based on a folded polypropylene carbon rod filter element is provided, which includes a shell and four support cylinders arranged in the shell. The lower end of each support cylinder is threadedly connected with a filter element cylinder. A PP filter element is inserted into the inner side of the first filter element cylinder. A folded polypropylene carbon rod filter element is inserted into the inner side of the second filter element cylinder. A reverse osmosis filter element is inserted into the inner side of the third filter element cylinder. An activated carbon filter element is inserted into the inner side of the fourth filter element cylinder. A booster pump is fixed to the inner bottom wall of the shell. The inlet of the booster pump is connected with the support cylinder on the second filter element cylinder through a pipeline and an electromagnetic valve. The outlet of the booster pump is connected with the support cylinder on the third filter element cylinder through an electromagnetic valve and a pipeline. The water purifier further includes:

[0008] A pushing part is inlaid in the inner bottom wall of the filter element cylinder and flush with the inner wall of the filter element cylinder. The pushing part includes a storage part inlaid in the inner bottom wall of the filter element cylinder and a pushing piece penetrating through the storage part, the filter element cylinder and the support cylinder. The PP filter element, the folded polypropylene carbon rod filter element, the reverse osmosis filter element or the activated carbon filter element can be pushed out by external force and water.

[0009] The pulling cleaning part is arranged outside the storage part and penetrates the supporting cylinder, and includes a cleaning and sealing part connected with the storage part and a pulling plug part penetrating the supporting cylinder and connected with the storage part to pull apart the storage part, and the storage part drives the cleaning and sealing part to move to clean the inner wall of the filter core cylinder.

[0010] Further, a positioning pipe is fixed at the center of the inner bottom wall of the filter core cylinder, and the PP filter core, the folded polypropylene carbon rod filter core, the reverse osmosis filter core and the activated carbon filter core are inserted outside the positioning pipe;

[0011] The through pipe is arranged inside the filter core cylinder, one end of the through pipe is communicated with the positioning pipe, and the other end penetrates the upper end of the filter core cylinder and is arranged outside the supporting cylinder;

[0012] Two connecting pipes are further included, one of the through pipes arranged in the first filter core cylinder is connected with the through pipe arranged in the second filter core cylinder through one of the connecting pipes, and the through pipe arranged in the third filter core cylinder is connected with the through pipe arranged in the fourth filter core cylinder through the other connecting pipe.

[0013] Further, the storage part includes:

[0014] The lower ring cylinder is fixed to the inner bottom wall of the filter core cylinder;

[0015] The upper ring cylinder is movably embedded in the inner bottom wall of the filter core cylinder and located above the lower ring cylinder;

[0016] The one-way valve penetrates the upper ring cylinder;

[0017] The L-shaped pipe is arranged in the filter core cylinder and the supporting cylinder, one end of the L-shaped pipe penetrates the upper end of the filter core cylinder and penetrates the supporting cylinder, and the other end penetrates the lower ring cylinder.

[0018] Further, the pushing part includes:

[0019] The through port has three ports, which are symmetrically arranged and penetrate the upper ring cylinder and have a T-shaped structure;

[0020] The guide cylinder is fixed in the through port and extends into the lower ring cylinder through the upper ring cylinder;

[0021] The first piston is arranged in the guide cylinder and abuts against the inner wall of the guide cylinder;

[0022] The push rod is fixed to the upper end of the first piston;

[0023] The elastic sealing part is arranged at the upper end of the push rod and elastically connected with the first piston;

[0024] The pressing part penetrates the filter core cylinder and the supporting cylinder and is communicated with the lower ring cylinder.

[0025] Further, the elastic sealing part includes:

[0026] a top disc fixed on the upper end of the push rod and abutting against the inner wall of the through hole and flush with the top surface of the upper ring cylinder;

[0027] a supporting ring fixed on the inner wall of the through hole and located outside the push rod;

[0028] a spring fixed symmetrically on the lower end of the supporting ring and connected with the upper end of the first piston;

[0029] a micro one-way valve arranged through the supporting ring on both sides and located above the first piston;

[0030] two rubber pads, one of which is fixed below the top disc and the other is fixed on the inner wall of the through hole;

[0031] the two rubber pads abut against each other.

[0032] Further, the pushing part comprises:

[0033] a cross rod arranged through the upper end of the L-shaped pipe;

[0034] a second piston fixed on the lower end of the cross rod and located in the L-shaped pipe and abutting against the inner wall of the L-shaped pipe;

[0035] a pull ring arranged outside the supporting cylinder and fixed with the upper end of the cross rod;

[0036] an arc opening arranged on the front surface of the pull ring.

[0037] Further, the cleaning part comprises:

[0038] a sealing pad fixed on the upper end of the lower ring cylinder and the lower end of the upper ring cylinder to abut against the joint between the upper ring cylinder and the lower ring cylinder;

[0039] a cleaning brush fixed outside the upper ring cylinder and abutting against the inner wall of the filter core cylinder;

[0040] a plug part arranged through the filter core cylinder.

[0041] Further, the plug part comprises:

[0042] a through hole arranged through the upper end of the supporting cylinder;

[0043] a receiving groove arranged on the supporting cylinder and communicating with the through hole.

[0044] Further, the plug part comprises:

[0045] a pull rod having one end fixed on the upper end of the upper ring cylinder and movably arranged through the through hole;

[0046] a rubber plug fixed outside the pull rod and located in the through hole and abutting against the inner wall of the through hole;

[0047] The handle is fixed to the upper outer side of the pull rod and is located inside the storage slot.

[0048] The above-described solution of the present invention has at least the following beneficial effects:

[0049] By incorporating a push-type mechanism, when replacing the filter element, the user only needs to press down on the external pull ring. The first and second pistons work together to utilize the pressure of the pre-stored water to push the filter element upwards from the bottom, easily disengaging it from the tight connection with the positioning tube. This allows users to remove the filter element more conveniently and quickly for replacement, reducing the difficulty of removing the filter element. Attached Figure Description

[0050] Figure 1 An overall perspective view of the water purifier provided in an embodiment of the present invention;

[0051] Figure 2 A perspective view of a water purifier with the side cover removed, provided in an embodiment of the present invention;

[0052] Figure 3 Rear view of the housing provided in an embodiment of the present invention;

[0053] Figure 4 An exploded perspective view of the filter cartridge and threaded cap provided in an embodiment of the present invention;

[0054] Figure 5 A cross-sectional plan view of the first filter cartridge and the second filter cartridge assembly provided in an embodiment of the present invention;

[0055] Figure 6 Provided for embodiments of the present invention Figure 5 Schematic diagram of the structure at point B in the diagram;

[0056] Figure 7 Provided for embodiments of the present invention Figure 5 Schematic diagram of the structure at point C;

[0057] Figure 8 A perspective view of the assembly of pull ring, rubber stopper, upper ring cylinder, lower ring cylinder and L-tube provided in an embodiment of the present invention;

[0058] Figure 9 An exploded perspective view of the pull ring, rubber stopper, upper ring cylinder, and lower ring cylinder provided in an embodiment of the present invention;

[0059] Figure 10 Provided for embodiments of the present invention Figure 9 Schematic diagram of the structure at point D in the diagram;

[0060] Figure 11 An exploded perspective view of the upper and lower ring cylinder assembly and the top plate provided in an embodiment of the present invention;

[0061] Figure 12A perspective view of the top disc and the first piston combination provided for the embodiment of the present application;

[0062] Figure 13 A structural schematic view of the structure at A in the embodiment of the present application is provided. Figure 4

[0063] Legend of reference signs:

[0064] In the figure: 1, shell; 2, side cover; 3, control screen; 4, end head; 5, notch; 6, interface; 7, end cover; 8, filter cartridge cylinder; 9, PP filter cartridge; 10, folded polypropylene carbon rod filter cartridge; 11, reverse osmosis filter cartridge; 12, activated carbon filter cartridge; 13, threaded cover; 14, water inlet head; 15, connecting pipe; 16, discharge port; 17, inlet pipe; 18, waste water port; 19, pure water port; 20, joint; 21, booster pump; 22, hose; 23, positioning pipe; 24, through pipe; 25, lower ring cylinder; 26, sealing gasket; 27, upper ring cylinder; 28, one-way valve; 29, through port; 30, guide cylinder; 31, first piston; 32, push rod; 33, top disc; 34, support ring; 35, spring; 36, micro one-way valve; 37, rubber gasket; 38, L-shaped pipe; 39, cross rod; 40, second piston; 41, pull ring; 42, arc port; 43, cleaning brush; 44, through port; 45, pull rod; 46, rubber plug; 47, pull handle; 48, storage groove; 49, support cylinder. DETAILED DESCRIPTION

[0065] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0066] As shown in Figures 1 to 13 the embodiment of the present application provides a water purifier based on a folded polypropylene carbon rod filter cartridge, comprising a shell 1 and four support cylinders 49 arranged in the shell 1, a filter cartridge cylinder 8 is threadedly connected to the lower end of the support cylinder 49, a PP filter cartridge 9 is inserted into the inner side of the first filter cartridge cylinder 8, a folded polypropylene carbon rod filter cartridge 10 is inserted into the inner side of the second filter cartridge cylinder 8, a reverse osmosis filter cartridge 11 is inserted into the inner side of the third filter cartridge cylinder 8, and an activated carbon filter cartridge 12 is inserted into the inner side of the fourth filter cartridge cylinder 8, a booster pump 21 is fixed to the inner bottom wall of the shell 1, the inlet of the booster pump 21 is connected to the support cylinder 49 on the second filter cartridge cylinder 8 through a pipeline and a solenoid valve, the discharge port 16 of the booster pump 21 is connected to the support cylinder 49 on the third filter cartridge cylinder 8 through a solenoid valve and a pipeline, and the water purifier further comprises:

[0067] ​The pushing part is inlaid in the inner bottom wall of the filter core cylinder 8 and is flush with the inner wall of the filter core cylinder 8, and comprises a storage part inlaid in the inner bottom wall of the filter core cylinder 8 and a pushing piece penetrating through the storage part, the filter core cylinder 8 and the supporting cylinder 49, so as to push out the PP filter core 9, the folded polypropylene carbon rod filter core 10, the reverse osmosis filter core 11 or the activated carbon filter core 12 by using external force and water;

[0068] The pulling cleaning part is arranged outside the storage part and penetrates through the supporting cylinder 49, and comprises a cleaning sealing piece connected with the storage part and a pulling plug piece penetrating through the supporting cylinder 49 and connected with the storage part, so as to pull and separate the storage part and move the cleaning sealing piece to clean the inner wall of the filter core cylinder 8 by using the storage part.

[0069] The positioning pipe 23 is fixed at the center of the inner bottom wall of the filter core cylinder 8, and the PP filter core 9, the folded polypropylene carbon rod filter core 10, the reverse osmosis filter core 11 and the activated carbon filter core 12 are inserted outside the positioning pipe 23;

[0070] The through pipe 24 is arranged inside the filter core cylinder 8, one end of the through pipe 24 is communicated with the positioning pipe 23, the other end penetrates through the upper end of the filter core cylinder 8 and is arranged outside the supporting cylinder 49;

[0071] The two connecting pipes 15 are further arranged, one of the through pipes 24 arranged in the first filter core cylinder 8 and the through pipes 24 arranged in the second filter core cylinder 8 is connected by one of the connecting pipes 15, and the through pipes 24 arranged in the third filter core cylinder 8 and the through pipes 24 arranged in the fourth filter core cylinder 8 are connected by the other connecting pipe 15.

[0072] Specifically, the side covers 2 are arranged at two sides of the shell 1, the control screen 3 is fixed at the front of the shell 1, the end head 4 is fixed at the upper end of the shell 1, four notches 5 are arranged at the upper end of the end head 4, the four notches 5 are respectively arranged outside the four supporting cylinders 49, the interface 6 is fixed at the front of the end head 4, the end cover 7 is arranged outside the end head 4, the threaded cover 13 is threadedly connected outside the upper end of the supporting cylinder 49 and located inside the notch 5, the water inlet head 14 is connected to the front of the supporting cylinder 49 connected with the first filter core cylinder 8, the water inlet head 14 is connected with the interface 6 through the hose 22, the discharge port 16 is connected to one side of the supporting cylinder 49 connected with the second filter core cylinder 8, the discharge port 16 is connected with the input end of the booster pump 21 through the pipeline and the electromagnetic valve, the inlet pipe 17 is connected to one side of the supporting cylinder 49 connected with the third filter core cylinder 8, the inlet pipe 17 is connected with the output end of the booster pump 21 through the pipeline and the electromagnetic valve, the waste water outlet 18 is connected to the other side of the supporting cylinder 49 connected with the third filter core cylinder 8, the connector 20 is arranged at the back of the end head 4, the waste water outlet 18 is connected with the connector 20 through the pipeline, the pure water outlet 19 is connected to the back of the supporting cylinder 49 connected with the fourth filter core cylinder 8, the pure water outlet 19 penetrates through the back of the end head 4 and is located at one side of the connector 20.

[0073] In practical application, the shell 1 can provide support for the side cover 2 and the end head 4, the end head 4 can provide a plug-in space and support for the end cover 7, the shell 1, the side cover 2 and the end head 4 can cooperate to provide protection for the components inside, and the shell 1 can stably support the booster pump 21, the end head 4 can provide support for the support cylinder 49, the support cylinder 49 can use threads to provide support for the filter cartridge 8, and the staff can connect the pipeline conveying water to be purified with the interface 6, so that the water can enter the hose 22 through the interface 6, pass through the hose 22 and enter the water inlet head 14, then pass through the water inlet head 14 and the support cylinder 49 and enter the first filter cartridge 8, so that the first filter cartridge 8 and the support cylinder 49 connected thereto are filled with water to be purified, the water passes through the PP filter 9 under the action of water pressure, is preliminarily filtered and enters the positioning pipe 23 in the first filter cartridge 8, passes through the positioning pipe 23 and enters the through pipe 24 in the first filter cartridge 8, enters one of the connecting pipes 15, passes through the connecting pipe 15 and enters the through pipe 24 in the second filter cartridge 8, passes through the positioning pipe 23 arranged inside the second filter cartridge 8 and enters the folded polypropylene carbon rod filter 10, is further filtered under the action of water pressure and fills the second filter cartridge 8 and the support cylinder 49 connected thereto, and the operation control screen 3 starts the booster pump 21 and opens the electromagnetic valve, so that the booster pump 21 sucks out the further filtered water from the discharge port 16 through the electromagnetic valve and outputs the water to the third filter cartridge 8 and the support cylinder 49 connected thereto from the inlet pipe 17, and the water passes through the reverse osmosis filter 11 under the action of water pressure provided by the booster pump 21, is reverse osmosis filtered, enters the through pipe 24 arranged in the third filter cartridge 8, passes through the through pipe 24 and the other connecting pipe 15, enters the through pipe 24 arranged in the fourth filter cartridge 8, passes through the positioning pipe 23 arranged in the fourth filter cartridge 8 and enters the activated carbon filter 12, is deodorized under the action of water pressure, enters and fills the fourth filter cartridge and the support cylinder 49 connected thereto, and finally filtered pure water is discharged from the pure water outlet 19 for use, and the waste water generated by reverse osmosis filtration in the fourth filter cartridge 8 is discharged from the joint 20 through the waste water outlet 18 and the connecting pipeline.

[0074] The staff can disassemble the end cover 7 to expose the end head 4 according to actual needs, insert a special tool into the notch 5 to connect with the threaded cover 13, and rotate the threaded cover 13 to separate the threaded cover 13 from the support cylinder 49 by using the threaded action, so as to open the upper end opening of the support cylinder 49, so as to facilitate the staff to replace the PP filter 9, the folded polypropylene carbon rod filter 10, the reverse osmosis filter 11 and the activated carbon filter 12.

[0075] As a preferred embodiment of the present application, the storage member comprises:

[0076] a lower ring 25 fixed to the inner bottom wall of the filter cartridge 8;

[0077] an upper ring 27 movably embedded in the inner bottom wall of the filter cartridge 8 and located above the lower ring 25;

[0078] a one-way valve 28 disposed through the upper ring 27;

[0079] an L-shaped pipe 38 disposed in the filter cartridge 8 and the support cylinder 49, one end of which is disposed through the upper end of the filter cartridge 8 and the support cylinder 49, and the other end of which is disposed through the lower ring 25.

[0080] Specifically, the filter cartridge 8 can provide stable support for the lower ring 25, the lower ring 25, in cooperation with the upper ring 27 and the sealing pad 26, can form a cavity capable of containing liquid, and the upper ring 27 can stably support the one-way valve 28, which is a valve type and can only provide a passage for water in the filter cartridge 8 to enter the lower ring 25. The filter cartridge 8, the support cylinder 49 and the lower ring 25 can stably support the L-shaped pipe 38, which can provide storage space and flow passage for water.

[0081] The push element comprises:

[0082] a through hole 29 having three symmetrical openings through the upper ring 27 and being in a T-shaped structure;

[0083] a guide cylinder 30 fixed in the through hole 29 and extending through the upper ring 27 into the lower ring 25;

[0084] a first piston 31 disposed in the guide cylinder 30 and abutting the inner wall of the guide cylinder 30;

[0085] a push rod 32 fixed to the upper end of the first piston 31;

[0086] a sealing and elastic part disposed at the upper end of the push rod 32 and elastically connected with the first piston 31;

[0087] a pressing element disposed through the filter cartridge 8 and the support cylinder 49 and in communication with the lower ring 25.

[0088] Specifically, the upper ring 27 can provide a space for the through hole 29, the through hole 29 can provide a passage for the guide cylinder 30, so that the upper ring 27 can stably support the guide cylinder 30, the guide cylinder 30 can provide a moving guide for the first piston 31 and a flow passage for water, and the first piston 31 can provide support for the push rod 32 by utilizing the friction with the inner wall of the guide cylinder 30.

[0089] The sealing and elastic part comprises:

[0090] A top disc 33 is fixed on the upper end of the push rod 32 and is attached to the inner wall of the through hole 29 and is flush with the top surface of the upper ring cylinder 27;

[0091] A support ring 34 is fixed on the inner wall of the through hole 29 and is located outside the push rod 32;

[0092] A spring 35 is symmetrically fixed on the lower end of the support ring 34 and is fixedly connected to the upper end of the first piston 31;

[0093] A micro one-way valve 36 is arranged through the two sides of the support ring 34 and is located above the first piston 31;

[0094] Two rubber pads 37 are provided, one of which is fixed below the top disc 33 and the other is fixed on the inner wall of the through hole 29;

[0095] The two rubber pads 37 are attached to each other.

[0096] Specifically, the push rod 32 can provide support for the top disc 33, the upper ring cylinder 27 can provide support for the support ring 34 through the through hole 29, so that the support ring 34 can stably support the spring 35, the spring 35 has elasticity and can be contracted under external force, and will rebound when the external force disappears, which can push the first piston 31 to move downward along the guide cylinder 30 to reset, the micro one-way valve 36 is a valve type and can only provide a channel for the water in the guide cylinder 30 to be discharged into the upper ring cylinder 27, and the rubber pad 37 can cooperate with the top disc 33 to seal the top opening of the through hole 29.

[0097] The pressing and pushing part includes:

[0098] A cross rod 39 is arranged through the upper end of the L-shaped pipe 38;

[0099] A second piston 40 is fixed on the lower end of the cross rod 39 and is located in the L-shaped pipe 38 and is attached to the inner wall of the L-shaped pipe 38;

[0100] A pull ring 41 is arranged outside the support cylinder 49 and is fixedly connected to the upper end of the cross rod 39;

[0101] An arc opening 42 is provided on the front surface of the pull ring 41.

[0102] In actual application, the L-shaped pipe 38 can provide a through channel for the cross rod 39 and can support the second piston 40 by friction, the second piston 40 can move along the L-shaped pipe 38 under the action of external force and can play a sealing role, the cross rod 39 can provide support for the pull ring 41, the support cylinder 49 can provide support for the pull ring 41, and the arc opening 42 can facilitate the staff to hold the pull ring 41.

[0103] When water enters and fills the filter core cylinder 8, water will generate pressure under the resistance of the PP filter core 9 or the activated carbon filter core 12, and will open and pass through the one-way valve 28 into the upper ring cylinder 27 and the lower ring cylinder 25 under the action of water pressure, and water will pass through the lower ring cylinder 25 and flow into the inside of the L tube 38, so that water can be stored between the L tube 38, the second piston 40, the first piston 31, the lower ring cylinder 25, the upper ring cylinder 27 and the sealing gasket 26, and the PP filter core 9, the folded polypropylene carbon rod filter core 10, the reverse osmosis filter core 11 or the activated carbon filter core 12 will provide resistance to the top disc 33 under the positioning of the positioning tube 23 and the resistance of the threaded cap 13, and the second piston 40 will be pushed upward along the L tube 38 under the action of water pressure, so that the second piston 40 can drive the pull ring 41 to move to the lower end of the threaded cap 13 through the cross rod 39, and the threaded cap 13 will resist, and then water will pass through the PP filter core 9 or the activated carbon filter core 12 for filtration under the action of water pressure.

[0104] When it is necessary to disassemble the PP filter core 9, the folded polypropylene carbon rod filter core 10, the reverse osmosis filter core 11 or the activated carbon filter core 12 for replacement, the staff needs to stop water supply, and the threaded cap 13 is rotated and removed by the screw thread action with the support cylinder 49, the opening on the support cylinder 49 is opened, and then the pull ring 41 is pushed downward, so that the pull ring 41 drives the second piston 40 to move downward along the L tube 38 through the cross rod 39 under the action of external force, so that the second piston 40 can extrude the water in the L tube 38 during the downward movement, so that the water in the L tube 38 can flow into the lower ring cylinder 25, so that the water between the lower ring cylinder 25 and the upper ring cylinder 27 generates pressure, and the water drives the first piston 31 to move upward along the guide cylinder 30 by using the pressure, so that the first piston 31 can extrude the spring 35, so that the spring 35 is extruded and shrunk under the action of external force and the support of the support ring 34, and the first piston 31 drives the top disc 33 to move upward through the push rod 32, so that the top disc 33 can move upward out of the through port 29, and the PP filter core 9, the folded polypropylene carbon rod filter core 10, the reverse osmosis filter core 11 or the activated carbon filter core 12 is pushed by using the pressure, so that the PP filter core 9, the folded polypropylene carbon rod filter core 10, the reverse osmosis filter core 11 or the activated carbon filter core 12 can be separated from the positioning tube 23 under the action of external force, so as to prevent the positioning tube 23 and the PP filter core 9, the folded polypropylene carbon rod filter core 10, the reverse osmosis filter core 11 or the activated carbon filter core 12 from increasing the insertion friction of the PP filter core 9, the folded polypropylene carbon rod filter core 10, the reverse osmosis filter core 11 or the activated carbon filter core 12, so as to reduce the difficulty of taking out the filter core.

[0105] As a preferred embodiment of the present application, the sealing member comprises:

[0106] The sealing gasket 26 is fixed at the upper end of the lower ring cylinder 25 and the lower end of the upper ring cylinder 27 to seal the joint between the upper ring cylinder 27 and the lower ring cylinder 25;

[0107] The cleaning brush 43 is fixed on the outer side of the upper ring cylinder 27 and is in contact with the inner wall of the filter element cylinder 8.

[0108] The plug part is arranged through the filter element cylinder 8.

[0109] Specifically, the sealing gasket 26 can play a sealing role between the lower ring cylinder 25 and the upper ring cylinder 27 to prevent water leakage. The upper ring cylinder 27 can separate the sealing gasket 26 connected thereto from the sealing gasket 26 connected to the lower ring cylinder 25 under the action of an external force, so that the lower ring cylinder 25 and the upper ring cylinder 27 can be separated. The upper ring cylinder 27 can provide support for the cleaning brush 43. The cleaning brush 43 can be deformed under the action of an external force and has a certain elasticity, and can clean the inner wall of the filter element cylinder 8 during movement.

[0110] The plug part includes:

[0111] The through hole 44 is arranged through the upper end of the support cylinder 49.

[0112] The receiving groove 48 is arranged on the support cylinder 49 and is in communication with the through hole 44.

[0113] Specifically, the support cylinder 49 can provide a space for the through hole 44, the support cylinder 49 can provide a space for the receiving groove 48, the through hole 44 can provide a through channel for the pull rod 45 and the rubber plug 46, the receiving groove 48 can provide a through channel for the pull rod 45, the rubber plug 46 and the pull handle 47, and can provide a receiving space for the pull handle 47 and the upper end of the pull rod 45.

[0114] The plug part includes:

[0115] The pull rod 45 is fixed at one end on the upper end of the upper ring cylinder 27 and movably penetrates the through hole 44.

[0116] The rubber plug 46 is fixed on the outer side of the pull rod 45, located in the through hole 44, and in contact with the inner wall of the through hole 44.

[0117] The pull handle 47 is fixed on the outer side of the upper end of the pull rod 45 and located in the receiving groove 48.

[0118] Specifically, the through hole 44 can provide a space for the rubber plug 46 to plug into, the rubber plug 46 can seal the through hole 44 after plugging, and can provide support for the pull rod 45 by utilizing the friction with the support cylinder 49, so that the pull rod 45 can be positioned on the upper ring cylinder 27, and the pull handle 47 can facilitate pulling the pull rod 45.

[0119] In the actual application process of the embodiment, after the staff takes out the PP filter core 9, the polypropylene carbon rod filter core 10, the reverse osmosis filter core 11 or the activated carbon filter core 12, the staff can insert the hand into the inner side of the storage groove 48, hook the pull handle 47 with the fingers, and pull the pull rod 45 upward through the pull handle 47, so that the pull rod 45 pulls the rubber plug 46 and the upper ring cylinder 27 upward under the action of the external force, the rubber plug 46 is pulled out upward from the through hole 44, and the upper ring cylinder 27 is driven to move upward along the inner wall of the filter core cylinder 8 by the pull rod 45, so that the upper ring cylinder 27 drives the cleaning brush 43 to move upward during the movement under the action of the external force, the cleaning brush 43 can clean the impurities adhered to the inner wall of the filter core cylinder 8 during the movement under the action of the external force, then the filter core cylinder 8 is rotated under the support of the supporting cylinder 49, the filter core cylinder 8 is disassembled from the filter core cylinder 8 (the lower cover 2 needs to be checked in advance) by the threaded action with the supporting cylinder 49, the impurities cleaned are poured or flushed, finally the filter core cylinder 8 is reset by the threaded action, after the completion, the rubber plug 46 is inserted into the through hole 44 to reset the upper ring cylinder 27, so as to facilitate the cleaning of the impurities on the inner wall of the filter core cylinder 8.

[0120] The above is the preferred embodiment of the application. It should be noted that those skilled in the art can make some improvements and refinements without departing from the principles of the application. These improvements and refinements should also be considered within the scope of the application.

Claims

1. A water purifier based on a pleated polypropylene carbon rod filter element, characterized in that, The device includes an outer shell and four support cylinders disposed within the outer shell. Filter cartridges are threaded to the lower ends of the support cylinders. A PP filter cartridge is inserted inside the first filter cartridge, a pleated polypropylene carbon rod filter cartridge is inserted inside the second filter cartridge, a reverse osmosis filter cartridge is inserted inside the third filter cartridge, and an activated carbon filter cartridge is inserted inside the fourth filter cartridge. A booster pump is fixed to the inner bottom wall of the outer shell. The inlet of the booster pump is connected to the support cylinder on the second filter cartridge via a pipeline and a solenoid valve. The outlet of the booster pump is connected to the support cylinder on the third filter cartridge via a solenoid valve and a pipeline. The device also includes: The pusher is embedded in the inner bottom wall of the filter cartridge and is flush with the inner wall of the filter cartridge. It includes a storage component embedded in the inner bottom wall of the filter cartridge and a pusher component that runs through the storage component, the filter cartridge and the support cylinder, so as to push out the PP filter cartridge, pleated polypropylene carbon rod filter cartridge, reverse osmosis filter cartridge or activated carbon filter cartridge by external force and water. The cleaning section is located on the outside of the storage unit and extends through the support cylinder. It includes a cleaning component connected to the storage unit and a pull plug component extending through the support cylinder. The pull plug component is connected to the storage unit to pull and separate the storage unit. The storage unit drives the cleaning component to move and clean the inner wall of the filter cartridge. The storage device includes: The lower ring cylinder is fixed to the inner bottom wall of the filter element cylinder; The upper ring cylinder is movably embedded in the inner bottom wall of the filter element cylinder and is located above the lower ring cylinder; A one-way valve is installed through the upper ring cylinder; The L-tube is installed inside the filter cartridge and the support cylinder. One end passes through the upper end of the filter cartridge and the support cylinder, and the other end passes through the lower ring cylinder. The pusher includes: The opening has three symmetrically arranged through the upper ring cylinder, forming a T-shaped structure. The guide tube is fixed inside the opening and extends through the upper ring tube to the lower ring tube; The first piston is located inside the guide cylinder and is in contact with the inner wall of the guide cylinder; The push rod is fixed to the upper end of the first piston; The spring-loaded component is located at the upper end of the push rod and is elastically connected to the first piston; The pressing and pushing parts penetrate the filter element cylinder and the support cylinder, and are connected to the lower ring cylinder; The pressing component includes: A crossbar is installed, penetrating the upper end of the L-tube; The second piston is fixed to the lower end of the cross rod and located inside the L tube, and is in contact with the inner wall of the L tube; The pull ring is located on the outside of the support cylinder and is fixedly connected to the upper end of the cross rod; The arc-shaped opening is located on the front of the pull ring.

2. The water purifier based on a folded polypropylene carbon rod filter element according to claim 1, characterized in that, A positioning tube is fixed at the center of the inner bottom wall of the filter cartridge, and the PP filter cartridge, pleated polypropylene carbon rod filter cartridge, reverse osmosis filter cartridge and activated carbon filter cartridge are inserted into the outside of the positioning tube. A through pipe is provided inside the filter cartridge, with one end of the through pipe connected to the positioning pipe and the other end passing through the upper end of the filter cartridge and passing through the outer side of the support cylinder. It also includes two connecting pipes. The connecting pipe provided in the first filter element cylinder and the connecting pipe provided in the second filter element cylinder are connected through one of the connecting pipes, and the connecting pipe provided in the third filter element cylinder and the connecting pipe provided in the fourth filter element cylinder are connected through the other connecting pipe.

3. The water purifier based on a folded polypropylene carbon rod filter element according to claim 2, characterized in that, The densely packed bullet components include: The top plate is fixed to the upper end of the push rod, fits against the inner wall of the opening, and is flush with the top surface of the upper ring cylinder; The support ring is fixed to the inner wall of the opening and is located on the outside of the push rod; Springs are symmetrically fixed to the lower end of the support ring and are fixedly connected to the upper end of the first piston; A miniature one-way valve is installed through both sides of the support ring and located above the first piston; Two rubber pads are provided, one of which is fixed to the bottom of the top plate and the other is fixed to the inner wall of the opening; The two rubber pads are bonded together.

4. The water purifier based on a folded polypropylene carbon rod filter element according to claim 3, characterized in that, The security component includes: The sealing gasket is fixed to the upper end of the lower ring cylinder and the lower end of the upper ring cylinder to fit and seal the joint between the upper and lower ring cylinders. The cleaning brush is fixed to the outside of the upper ring cylinder and fits against the inner wall of the filter cartridge. The plug is inserted through the filter cartridge.

5. The water purifier based on a pleated polypropylene carbon rod filter element according to claim 4, characterized in that, The retaining component includes: The opening is made at the top of the support tube; The storage slot is located on the support tube and is connected to the through hole.

6. The water purifier based on a pleated polypropylene carbon rod filter element according to claim 5, characterized in that, The puller component includes: The pull rod is fixed at one end to the upper end of the upper ring cylinder and moves through the opening. The rubber plug is fixed to the outside of the pull rod, located inside the through-hole, and fits against the inner wall of the through-hole; The handle is fixed to the upper outer side of the pull rod and is located inside the storage slot.

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