A backwash water quality filter

Abstract

The application belongs to the technical field of filters, and discloses a backwashing water quality filter, which comprises a filter main body, wherein the filter main body is a hollow cylindrical structure, a filter water source output pipe and a flushing water source input pipe are sequentially arranged on one curved side of the filter main body, a water source inlet pipe is arranged on the other curved side of the filter main body, and the backwashing filter assembly is arranged on the top of the filter main body and connected with the filter water source output pipe and the flushing water source input pipe respectively; the backwashing water quality filter can greatly improve the backwashing effect, improve the internal cleaning environment of the filter, realize semi-automatic operation through a high-pressure water source, and is very simple and convenient to operate, can clean the surfaces on both sides of multiple polypropylene filter cores, reduces the situation that the polypropylene filter core can be cleaned only after the filter is disassembled, simplifies the operation steps, and enables the water quality filter to have the effect of self-cleaning.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of filters, and particularly relates to a backwashing water quality filter. BACKGROUND

[0002] The working principle of the water quality filter is that water to be filtered enters from the water inlet, flows through the filter screen filter core, and is filtered and retained in the filter screen by the filter screen filter core, and then filtered liquid is obtained through the water outlet.

[0003] The backwashing filter is based on the water quality filter and is used for automatically cleaning the filter structure in the water quality filter. The filter adopts a high-precision filter screen and a valve plate. In the water treatment industry, the backwashing filter can effectively improve the quality of water, prevent the blocking of downstream equipment, reduce frequent manual switching operations and heavy filter cleaning work, and avoid unnecessary downtime.

[0004] Reference: 2019105855174, specifically relates to a backwashing water quality filter, which comprises an outer cylinder, a filter cylinder, an inner cylinder, a cleaning pipe, a first valve and a second valve. The first valve is arranged on the inner cylinder to open and close the passage formed by the inner cylinder. The outer cylinder is provided with a flow-out hole penetrating the side surface. The second valve is arranged on the cleaning pipe to control the opening and closing of the cleaning pipe. The valve rod of the first valve and the valve rod of the second valve are matched through a gear. The inner cylinder is provided with a cleaning hole penetrating the inner cylinder to communicate the outer cavity and the cavity of the inner cylinder. The cross-sectional area of the cleaning hole is less than or equal to 1 / 10 of the cross-sectional area of the inner cylinder. The filter cylinder comprises a cylinder body and a filter screen. The cylinder body is provided with a filter hole penetrating the side surface, and the filter screen covers the filter hole. Thus, the filter of the application can normally supply water during backwashing, and only one valve needs to be rotated, and the other valve is also rotated together, without the need to rotate one valve at a time, saving time and effort.

[0005] However, the device can only flush and clean the scale on the inner wall of the inner cylinder, and the scale and solid particles adhered to the two sides of the polypropylene filter core still exist to some extent, which can reduce the water source standard of the water quality filter, thereby reducing the water quality after filtration, making it difficult for the water quality filter to be normally used, and being difficult to be flushed and cleaned. The water quality filter still needs to be manually disassembled, and the polypropylene filter core needs to be removed and cleaned or replaced, so as not to reduce the quality of the water quality filter, and the cleaning problem still exists.

[0006] Meanwhile, most existing water filters are single-layer polypropylene filter cartridges. Once the number of polypropylene filter cartridges increases, the difficulty of cleaning them will increase several times. This is because water needs to pass through multiple polypropylene filter cartridges in sequence when flowing through the filter. After long-term use, scale and filtered solid particles will adhere to the polypropylene filter cartridges. At this time, relying on high-pressure water to rinse the polypropylene filter cartridges can only clean the surface of the two end polypropylene filter cartridges. The high-pressure water cannot remove the polypropylene filter cartridges in the middle, and there will still be a situation where the rinsing is not thorough and the cleaning work is complicated.

[0007] In summary, the existing backwashing function of water filters is insufficient to thoroughly clean the polypropylene filter element inside the filter. Furthermore, some scale and solid particles that fall off after cleaning remain between the two polypropylene filter elements and cannot be discharged from the filter. This flushing method will cause the polypropylene filter element to become clogged again in a short period of time. Therefore, we propose a backwashing water filter. Summary of the Invention

[0008] The purpose of this invention is to provide a backwash water filter to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a backwash water filter, comprising a filter body, the filter body being a hollow cylindrical structure, a filter water source output pipe and a backwash water source input pipe sequentially arranged on one side of the curved surface of the filter body, and a water source inlet pipe arranged on the other side of the curved surface of the filter body, further comprising:

[0010] A backwash filter assembly is placed on top of the filter body, and the ends of the backwash filter assembly are respectively connected to the filter water source output pipe and the backwash water source input pipe.

[0011] A water source inlet pipe is installed inside the filter body, and the top end of the water source inlet pipe is connected to the water source inlet pipe;

[0012] A diffuser is located inside the filter body, and the water source inlet pipe is connected to the diffuser;

[0013] A cone-shaped dispersion block is located inside the filter body, directly below the diffuser;

[0014] The backwash built-in block is located inside the backwash filter assembly.

[0015] Preferably, the top of the filter body is detachably connected to a sealed top cover, the bottom of the filter body is provided with a solid output base, and the filter body is placed on the ground by multiple supporting base columns;

[0016] Furthermore, the diffuser, the conical dispersion block, the filter body, and the solid output base are all located at the same center. The conical dispersion block has a conical structure, and the diffuser has a bowl-shaped structure.

[0017] Preferably, the backwashing filter assembly includes a filter cartridge base, a filter cartridge top plate is detachably connected to the top of the filter cartridge base, and a movable handle is symmetrically provided on the top of the filter cartridge top plate. A filtered water source outlet is provided at the bottom of one end of the filter cartridge base, and a water source inlet to be filtered is provided in the middle of the other end of the filter cartridge base.

[0018] The filter cartridge base has a water source filtration cavity inside. The bottom of the filter cartridge top plate is provided with multiple polypropylene filter elements, which divide the water source filtration cavity into multiple filtration sealed cavities. Each filtration sealed cavity contains a backwashing built-in block, and each backwashing built-in block is set in the filtration sealed cavity through a linkage structure.

[0019] Preferably, the bottom of the filter cartridge base is provided with a scale discharge assembly, which includes a connecting plate. The connecting plate is connected to the filter cartridge base by two waterproof telescopic rods. The surface of the connecting plate near the filter cartridge base is provided with multiple conical sealing platforms. The bottom wall of the filter cartridge base is provided with multiple scale discharge outlets, and the conical sealing platforms are used in conjunction with the scale discharge outlets.

[0020] Each filter sealing chamber is equipped with a scale discharge port, which is a frustum structure. The diameter of the end of the conical sealing platform near the connecting plate is larger than the diameter of the scale discharge port. The conical sealing platform is made of rubber.

[0021] Preferably, the backwashing built-in block consists of two identical first flushing water droplet blocks and a second flushing water droplet block, wherein the first flushing water droplet block has a water droplet-shaped structure, and multiple backwashing nozzles are provided on the surface of both the first and second flushing water droplet blocks. Flow channels are provided inside both the first and second flushing water droplet blocks, and these flow channels communicate with the multiple backwashing nozzles. Each backwashing built-in block is connected via a linkage structure. A three-stage water source connection pipe is provided at the middle of one end of the filter cartridge base, and this three-stage water source connection pipe communicates with the backwashing built-in block via a linkage structure.

[0022] Preferably, the linkage structure includes multiple connecting inner columns, which are respectively located in the filter sealing cavity. The top of the connecting inner column is fixed to the bottom wall of the filter cartridge top plate, and the bottom of the connecting inner column is connected to the side wall of the backwashing built-in block. The backwashing built-in block is fixed in the filter sealing cavity through the connecting inner columns, and the backwashing built-in block and the polypropylene filter element are set at the same center.

[0023] Preferably, the linkage structure further includes a linkage rotating column, and the backwashing built-in block is rotatably connected to the filter sealing cavity through the linkage rotating column, and the end of the filter cylinder base is provided with a drive rotating mechanism for driving multiple backwashing built-in blocks to rotate.

[0024] The driving rotation mechanism includes a first rotating tube, one end of which is connected to a three-stage water source connection pipe, and the other end of which is rotatably connected to a water storage pipe, which is connected to a flushing water source input pipe. The end of the water storage pipe near the first rotating tube is provided with a first engaging rotating ring, which is located inside the first rotating tube. The end of the first rotating tube near the water storage pipe is provided with a second engaging rotating ring, which works in conjunction with the first engaging rotating ring. A water flow channel is formed inside the water storage pipe.

[0025] Preferably, the outer wall of the filter cartridge base is provided with a drive motor on one side of the first rotating tube. The end of the drive motor is provided with an output shaft, and the end of the output shaft away from the drive motor is rotatably connected to the filter cartridge base. Both the output shaft and the outer wall of the first rotating tube are provided with teeth. Both the output shaft and the outer wall of the first rotating tube are fitted with a linkage drive belt, and the linkage drive belt is engaged with the output shaft and the first rotating tube respectively.

[0026] Preferably, the three-stage water source connection pipe, the first rotating pipe, the water storage pipe, the linkage rotating column, and the backwash built-in block are all set at the same center. When the flushing water source input pipe is connected to the water source, the water source will enter the water flow channel, the first rotating pipe, the linkage rotating column, and the backwash built-in block in sequence, and finally be output through multiple backwash nozzles.

[0027] Preferably, the filtered water outlet is connected to the filtered water outlet pipe. The water source enters the filter body through the water inlet pipe, and after being filtered by the backwashing filter assembly, it is finally output through the filtered water outlet and the filtered water outlet pipe.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] This invention can greatly improve the backwashing effect, enhance the internal cleanliness of the filter, and achieve semi-automatic operation through a high-pressure water source. The operation is very simple and convenient, and it can rinse and clean both sides of multiple polypropylene filter elements, reducing the need to disassemble the filter to clean the polypropylene filter elements. Furthermore, it can discharge scale and solid particles after rinsing and cleaning from inside the backwashing filter assembly, greatly improving the internal cleaning efficiency of the water filter, simplifying the operation steps, enabling the water filter to have a self-rinsing cleaning effect, and enhancing the competitiveness of the equipment.

[0030] The built-in backwash block effectively removes scale and solid particles from the filter's sealed cavity. This block consists of two teardrop-shaped structures: a first backwash teardrop block and a second backwash teardrop block. This unique shape effectively reduces scale buildup. Combined with multiple high-pressure backwash nozzles, it covers up to 90% of the filter's sealed cavity, as shown in the instruction manual. Figure 11 The moving handle is the source of high-pressure water sprayed from the built-in backwash block. It can be clearly observed that the flushing spray can clean most of the area inside the filter sealing chamber, and can also clean the surface of the polypropylene filter element. It can not only efficiently flush and clean the inside of the backwash filter assembly, but also has a good flushing and cleaning effect on multiple polypropylene filter elements. It can reduce the clogging of polypropylene filter elements due to scale and solid particles, ensure that the polypropylene filter elements can filter water normally, and ensure that the water filter can be used normally.

[0031] The backwashing function can be further enhanced by using a scale removal component. After the backwashing filter component and the backwashing built-in block achieve the backwashing cleaning function, the scale and solid particles after the backwashing cleaning can be discharged from the backwash filter component by using the scale removal component. Simply change the displacement of the connecting plate through the waterproof telescopic rod to separate the scale discharge port from the conical sealing platform. At this time, the backwashing built-in block can be operated to discharge the cleaned scale from the scale discharge port. The whole process can be operated and realized inside the water filter without removing the backwash filter component.

[0032] Meanwhile, this solution also provides an embodiment two. In embodiment two, the backwashing built-in block is no longer stationary but can rotate. Embodiment two can not only achieve the above-mentioned technical effects, but also the backwashing and cleaning area of ​​the backwashing built-in block in embodiment two can be increased by 5% to 7% compared with embodiment one, which further improves the backwashing effect, enhances functionality, and reduces the possibility of the polypropylene filter element becoming clogged again in a short period of time after the backwashing and cleaning. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the present invention;

[0034] Figure 2 This is a perspective view of the water source inlet pipe of the present invention;

[0035] Figure 3 This is an exploded top view of the filter body of the present invention;

[0036] Figure 4 This is an exploded view of the filter body of the present invention from a bottom angle;

[0037] Figure 5 This is a perspective view of the filtered water outlet of the present invention;

[0038] Figure 6 This is a perspective view of the scale removal component of the present invention;

[0039] Figure 7 This is a perspective view of the top plate of the filter cartridge of the present invention;

[0040] Figure 8 This is a perspective view of the filter sealing cavity of the present invention;

[0041] Figure 9 This is a perspective view of the backwashing built-in block of the present invention;

[0042] Figure 10 This is a front sectional view of the filter body of the present invention;

[0043] Figure 11 This is a schematic diagram of the flushing spray water source of the present invention;

[0044] Figure 12 For the present invention Figure 10 Enlarged view of point A in the middle;

[0045] Figure 13 This is a perspective view of the first rotating tube of the present invention;

[0046] In the picture:

[0047] 100. Filter body; 101. Filter water output pipe; 102. Flushing water input pipe; 103. Sealed top cover; 104. Support base column; 105. Water inlet pipe; 106. Solid output base;

[0048] 200. Backwash filter assembly; 201. Filter cartridge base; 202. Filter cartridge top plate; 203. Moving handle; 204. Filtered water outlet; 205. Water source inlet to be filtered; 206. Polypropylene filter element; 207. Filter sealing chamber; 208. Filtered water source inner chamber; 209. Connecting inner column;

[0049] 230. Rinse spray water source; 231. Three-stage water source connecting pipe; 232. First rotating pipe; 233. First engaging rotating ring; 234. Second engaging rotating ring; 235. Water flow channel; 236. Water storage pipe; 237. Drive motor; 238. Output shaft; 239. Linkage drive belt; 240. Linkage rotating column;

[0050] 300. Water source diversion pipe;

[0051] 400. Diffuser;

[0052] 500, cone-shaped dispersion block;

[0053] 600. Scale removal assembly; 601. Connecting plate; 602. Conical sealing platform; 603. Waterproof telescopic rod; 604. Scale discharge port;

[0054] 700. Backwash built-in block; 701. Flow channel; 702. Backwash nozzle; 703. First flushing water droplet block; 704. Second flushing water droplet block. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0056] Please see Figures 1 to 13 This invention provides a technical solution: a backwash water filter, comprising a filter body 100, which is a hollow cylindrical structure. A filter water source output pipe 101 and a backwash water source input pipe 102 are sequentially arranged on one curved side of the filter body 100, and a water source inlet pipe 105 is arranged on the other curved side of the filter body 100. The filter body also includes:

[0057] The backwash filter assembly 200 is placed on top of the filter body 100, and the ends of the backwash filter assembly 200 are connected to the filter water source output pipe 101 and the backwash water source input pipe 102 respectively.

[0058] A water source inlet pipe 300 is installed inside the filter body 100, and the top end of the water source inlet pipe 300 is connected to the water source inlet pipe 105.

[0059] The diffuser 400 is located inside the filter body 100, and the water source inlet pipe 300 is connected to the diffuser 400;

[0060] The cone-shaped dispersion block 500 is located inside the filter body 100, directly below the diffuser 400;

[0061] The backwash built-in block 700 is located inside the backwash filter assembly 200.

[0062] This invention can greatly improve the backwashing effect, enhance the internal cleanliness of the filter, and achieve semi-automatic operation through a high-pressure water source. The operation is very simple and convenient, and it can rinse and clean both sides of multiple polypropylene filter elements 206, reducing the need to disassemble the filter to clean the polypropylene filter elements 206. Furthermore, it can discharge scale and solid particles after rinsing and cleaning from inside the backwashing filter assembly 200, greatly improving the internal cleaning efficiency of the water filter, simplifying the operation steps, enabling the water filter to have a self-rinsing cleaning effect, and improving the competitiveness of the equipment.

[0063] In this embodiment, preferably, as follows: Figure 2 , Figure 3 , Figure 4 The top of the filter body 100 is detachably connected to a sealing top cover 103, the bottom of the filter body 100 is provided with a solid output base 106, and the filter body 100 is placed on the ground by multiple supporting base columns 104.

[0064] Furthermore, the diffuser 400, the conical dispersion block 500, the filter body 100, and the solid output base 106 are all set at the same center. The conical dispersion block 500 has a conical structure, and the diffuser 400 has a bowl-shaped structure.

[0065] The water source to be filtered enters the filter body 100 through the water source inlet pipe 105. The water then enters the water source diversion pipe 300 and diffuser 400 through the water source inlet pipe 105, and finally enters the filter body 100. During this process, the solid particles in the water source have been filtered and separated for the first time. The solid particles are deposited into the solid output base 106 by gravity and the dispersion effect of the cone-shaped dispersion block 500. The solid output base 106 can be opened according to the usage requirements to discharge the solid particles.

[0066] When the solid output base 106 is in a sealed state, the backwash filter assembly 200 located inside the filter body 100 will also be filled with water, and the water will enter the filter cartridge base 201 through the water source inlet 205.

[0067] In this embodiment, preferably, as follows: Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 The backwashing filter assembly 200 includes a filter cartridge base 201, a filter cartridge top plate 202 detachably connected to the top of the filter cartridge base 201, a moving handle 203 symmetrically provided on the top of the filter cartridge top plate 202, a filtered water source outlet 204 provided at the bottom of one end of the filter cartridge base 201, and a water source inlet 205 to be filtered provided in the middle of the other end of the filter cartridge base 201.

[0068] The filter cartridge base 201 has a water source filtration cavity 208 inside. The bottom of the filter cartridge top plate 202 is provided with multiple polypropylene filter elements 206, and the multiple polypropylene filter elements 206 divide the water source filtration cavity 208 into multiple filter sealing cavities 207. Each filter sealing cavity 207 has a backwashing built-in block 700 inside, and each backwashing built-in block 700 is set in the filter sealing cavity 207 through a linkage structure.

[0069] When the filter cartridge top plate 202 and the filter cartridge base 201 are closed, they can form a hollow cylinder. The polypropylene filter element 206 has the same inner diameter as the cylinder. Therefore, the three polypropylene filter elements 206 can form four filter sealed cavities 207 in the water source cavity 208. The water source that enters the filter cartridge base 201 through the water source inlet 205 needs to pass through multiple polypropylene filter elements 206 in sequence to be output from the filtered water source outlet 204. In the process of the water source passing through the polypropylene filter elements 206, the water quality is filtered.

[0070] In this embodiment, preferably, as follows: Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 The bottom of the filter cartridge base 201 is provided with a scale discharge component 600. The scale discharge component 600 includes a connecting plate 601. The connecting plate 601 is connected to the filter cartridge base 201 through two waterproof telescopic rods 603. The surface of the connecting plate 601 near the filter cartridge base 201 is provided with multiple conical sealing platforms 602. The bottom wall of the filter cartridge base 201 is provided with multiple scale discharge outlets 604, and the conical sealing platforms 602 are used in conjunction with the scale discharge outlets 604.

[0071] Each filter sealing cavity 207 is provided with a scale discharge port 604, and the scale discharge port 604 is a frustum structure. The diameter of the end of the conical sealing platform 602 near the connecting plate 601 is larger than the diameter of the scale discharge port 604. The conical sealing platform 602 is made of rubber.

[0072] The scale discharge component 600 can further enhance the backwashing function. After the backwashing cleaning function is achieved through the backwash filter component 200 and the backwash built-in block 700, the scale and solid particles after the backwashing cleaning can be discharged from the backwash filter component 200 through the scale discharge component 600. Simply change the displacement of the connecting plate 601 through the waterproof telescopic rod 603 to separate the scale discharge port 604 from the conical sealing platform 602. At this time, the backwash built-in block 700 can be operated to discharge the cleaned scale from the scale discharge port 604. The whole process can be operated and achieved inside the water filter without removing the backwash filter component 200.

[0073] Furthermore, due to the special structural design of the conical sealing platform 602 and the scale discharge port 604, when it is necessary to seal the scale discharge port 604, simply retract the waterproof telescopic rod 603, causing the conical sealing platform 602 to move along the middle of the scale discharge port 604, thereby closing the scale discharge port 604. At the same time, since the conical sealing platform 602 is made of rubber, it can effectively squeeze the gap between the scale discharge port 604 and the conical sealing platform 602 during the movement, thereby achieving a sealing effect.

[0074] In this embodiment, preferably, as follows: Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 The backwash built-in block 700 consists of two identical first flushing water droplet blocks 703 and second flushing water droplet blocks 704. The first flushing water droplet block 703 has a water droplet-shaped structure. Multiple backwash nozzles 702 are opened on the surface of both the first flushing water droplet block 703 and the second flushing water droplet block 704. Flow channels 701 are opened inside both the first flushing water droplet block 703 and the second flushing water droplet block 704. The flow channels 701 are connected to the multiple backwash nozzles 702. Each backwash built-in block 700 is connected through a linkage structure. A three-stage water source connection pipe 231 is provided at the middle of one end of the filter cartridge base 201. The three-stage water source connection pipe 231 is connected to the backwash built-in block 700 through a linkage structure.

[0075] The backwashing built-in block 700 can flush away scale and solid particles from the filter sealing chamber 207. The backwashing built-in block 700 consists of two teardrop-shaped structures: a first flushing teardrop block 703 and a second flushing teardrop block 704. This special shape effectively reduces scale adhesion to its surface. Simultaneously, combined with high-pressure water spray from multiple backwash nozzles 702, it can cover 90% of the filter sealing chamber 207 area, as per the instruction manual. Figure 11 The moving handle 203 is the high-pressure water source sprayed from the backwash built-in block 700. It can be clearly observed that the flushing spray water source 230 can flush and clean most of the area inside the filter sealing cavity 207, and can also clean the surface of the polypropylene filter element 206. It can not only efficiently flush and clean the inside of the backwash filter assembly 200, but also has a good flushing and cleaning effect on multiple polypropylene filter elements 206. It can reduce the clogging of polypropylene filter elements 206 due to scale and solid particles, ensure that polypropylene filter elements 206 can filter water normally, and ensure that the water filter can be used normally.

[0076] In this embodiment, preferably, as follows: Figure 2 , Figure 3 ,Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 The linkage structure includes multiple connecting inner columns 209, which are located inside the filter sealing cavity 207. The top of the connecting inner column 209 is fixed to the bottom wall of the filter cartridge top plate 202, and the bottom of the connecting inner column 209 is connected to the side wall of the backwash built-in block 700. The backwash built-in block 700 is fixed inside the filter sealing cavity 207 through the connecting inner columns 209, and the backwash built-in block 700 and the polypropylene filter element 206 are set at the same center.

[0077] The backwashing built-in block 700, fixed by the inner column 209, cannot rotate. In this configuration, the backwashing built-in block 700 is fixed within the filter sealing chamber 207. Water can then enter the backwashing built-in block 700 through the three-stage water supply connection pipe 231 and the linkage rotating column 240, achieving the following: Figure 11 Large-area rinsing operation.

[0078] Working principle and usage process:

[0079] The water source to be filtered enters the filter body 100 through the water inlet pipe 105. The water then flows through the water inlet pipe 105 into the water diversion pipe 300 and diffuser 400, finally entering the filter body 100. During this process, solid particles in the water undergo initial filtration and separation. These particles are then deposited into the solid output base 106 by gravity and the dispersion effect of the cone-shaped dispersion block 500. The solid output base 106 can be opened as needed to discharge the solid particles. When the solid output base 106 is sealed, the backwash filter assembly 200 inside the filter body 100 is filled with water. The water source then flows through the filter body 100. The source water enters the filter cartridge base 201 through the inlet 205 and exits through the filtered water outlet 204. When backwashing is required, the water source is introduced into the tertiary water source connecting pipe 231 through the flushing water source inlet pipe 102, and then enters the linkage rotating column 240 from the tertiary water source connecting pipe 231. Finally, the water source enters the backwash built-in block 700, which consists of two teardrop-shaped structures: a first flushing water droplet block 703 and a second flushing water droplet block 704. This special shape can effectively reduce scale adhesion to its surface. At the same time, with the high-pressure water spray from multiple backwash nozzles 702, it can cover 90% of the area of ​​the filter sealing cavity 207, as shown in the instruction manual. Figure 11The moving handle 203 is the high-pressure water source sprayed from the backwashing built-in block 700. It can be clearly observed that the flushing spray water source 230 can flush and clean most of the area inside the filter sealing cavity 207, and can also clean the surface of the polypropylene filter element 206. It can not only efficiently flush and clean the inside of the backwashing filter assembly 200, but also has a good flushing and cleaning effect on multiple polypropylene filter elements 206, which can reduce the clogging of polypropylene filter elements 206 due to scale and solid particles. The connecting plate 601 is moved by the waterproof telescopic rod 603, so that the scale outlet 604 is separated from the conical sealing platform 602. At this time, the backwashing built-in block 700 is operated, and the cleaned scale can be discharged from the scale outlet 604. The whole process does not require the backwashing filter assembly 200 to be removed. It can be operated and realized inside the water filter. The scale and solid particles output from the backwashing filter assembly 200 enter the filter body 100 and are finally discharged through the solid output base 106. Example

[0080] Please see Figures 1 to 13 The present invention provides a technical solution:

[0081] like Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 The linkage structure also includes a linkage rotating column 240, and the backwash built-in block 700 is rotatably connected to the filter sealing cavity 207 through the linkage rotating column 240. The end of the filter cartridge base 201 is provided with a drive rotation mechanism to drive multiple backwash built-in blocks 700 to rotate.

[0082] The driving rotation mechanism includes a first rotating pipe 232. One end of the first rotating pipe 232 is connected to a three-stage water source connection pipe 231. The other end of the first rotating pipe 232 is rotatably connected to a water storage pipe 236, and the water storage pipe 236 is connected to a flushing water source input pipe 102. A first engaging rotating ring 233 is provided at the end of the water storage pipe 236 near the first rotating pipe 232, and the first engaging rotating ring 233 is located inside the first rotating pipe 232. A second engaging rotating ring 234 is provided at the end of the first rotating pipe 232 near the water storage pipe 236. The second engaging rotating ring 234 works in conjunction with the first engaging rotating ring 233. A water flow channel 235 is formed inside the water storage pipe 236.

[0083] This embodiment can increase the backwashing cleaning area of ​​the built-in backwash block 700 by 5% to 7% compared to Embodiment 1, further improving the backwashing effect, enhancing functionality, and reducing the likelihood of the polypropylene filter element 206 becoming clogged again in a short period of time after backwashing.

[0084] In this embodiment, preferably, as follows:Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 A drive motor 237 is provided on the outer wall of the filter cartridge base 201 on one side of the first rotating tube 232. The end of the drive motor 237 is provided with an output shaft 238, and the end of the output shaft 238 away from the drive motor 237 is rotatably connected to the filter cartridge base 201. The outer walls of the output shaft 238 and the first rotating tube 232 are both provided with teeth. The outer walls of the output shaft 238 and the first rotating tube 232 are both fitted with a linkage drive belt 239, which is engaged with the output shaft 238 and the first rotating tube 232 respectively.

[0085] When the backwashing built-in block 700 is running, it can also rotate simultaneously, requiring the operation of the drive motor 237. The drive motor 237 and the output shaft 238 rotate together, which in turn causes the linkage drive belt 239 to rotate. Since the linkage drive belt 239 is engaged with the output shaft 238 and the first rotating tube 232 respectively, the first rotating tube 232 will rotate. The first rotating tube 232 then drives the three-stage water source connection pipe 231, the linkage rotating column 240, and the backwashing built-in block 700 to rotate.

[0086] In this embodiment, preferably, as follows: Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 The three-stage water source connection pipe 231, the first rotating pipe 232, the water storage pipe 236, the linkage rotating column 240, and the backwash built-in block 700 are all set at the same center. When the flushing water source input pipe 102 is connected to the water source, the water source will enter the water flow channel 235, the first rotating pipe 232, the linkage rotating column 240, and the backwash built-in block 700 in sequence, and finally be output through multiple backwash nozzles 702.

[0087] At this point, the backwashing built-in block 700 can perform backwashing operations, and the backwashing cleaning area of ​​the backwashing built-in block 700 in the rotating state is greater than that of the backwashing built-in block 700 in the non-rotating state.

[0088] In this embodiment, preferably, as follows: Figure 1 , Figure 2 , Figure 5 The filtered water outlet 204 is connected to the filtered water outlet pipe 101. The water enters the filter body 100 through the water inlet pipe 105. After being filtered by the backwash filter assembly 200, it is finally output through the filtered water outlet 204 and the filtered water outlet pipe 101.

[0089] Working principle and usage process: When the backwashing built-in block 700 is running, it can also rotate simultaneously, requiring the operation of the drive motor 237. The drive motor 237 and the output shaft 238 rotate together, which in turn causes the linkage drive belt 239 to rotate. Since the linkage drive belt 239 is engaged with the output shaft 238 and the first rotating tube 232 respectively, the first rotating tube 232 will rotate. The first rotating tube 232 then drives the three-stage water source connection pipe 231, the linkage rotating column 240, and the backwashing built-in block 700 to rotate. When the flushing water source input pipe 102 is connected to the water source, the water source will enter the water flow channel 235, the first rotating tube 232, the linkage rotating column 240, and the backwashing built-in block 700 in sequence, and finally be output through multiple backwash nozzles 702. This achieves relatively efficient flushing and cleaning of the backwashing filter assembly 200, and also has a good flushing and cleaning effect on multiple polypropylene filter elements 206. The method of removing scale and solid particles is consistent with the structure and principle in Example 1.

[0090] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A backwash water filter, comprising a filter body (100), wherein the filter body (100) is a hollow cylindrical structure, and a filter water source output pipe (101) and a backwash water source input pipe (102) are sequentially provided on one side of the curved surface of the filter body (100), and a water source inlet pipe (105) is provided on the other side of the curved surface of the filter body (100), characterized in that: Also includes: A backwash filter assembly (200) is placed on top of the filter body (100), and the ends of the backwash filter assembly (200) are respectively connected to the filter water source output pipe (101) and the backwash water source input pipe (102); A water source inlet pipe (300) is installed inside the filter body (100), and the top end of the water source inlet pipe (300) is connected to the water source inlet pipe (105); A diffuser (400) is located inside the filter body (100), and the water source inlet pipe (300) is connected to the diffuser (400); A conical dispersion block (500) is located inside the filter body (100) and directly below the diffuser (400); A backwash built-in block (700) is disposed inside the backwash filter assembly (200); The backwashing filter assembly (200) includes a filter cartridge base (201), a filter cartridge top plate (202) is detachably connected to the top of the filter cartridge base (201), a movable handle (203) is symmetrically provided on the top of the filter cartridge top plate (202), a filtered water source outlet (204) is provided at the bottom of one end of the filter cartridge base (201), and a water source inlet (205) to be filtered is provided in the middle of the other end of the filter cartridge base (201). The filter cartridge base (201) has a water source cavity (208) inside. The bottom of the filter cartridge top plate (202) is provided with multiple polypropylene filter elements (206), and the multiple polypropylene filter elements (206) divide the water source cavity (208) into multiple filter sealing cavities (207). Each filter sealing cavity (207) has a backwashing built-in block (700) inside, and each backwashing built-in block (700) is set in the filter sealing cavity (207) through a linkage structure. The backwash built-in block (700) is composed of two identical first flushing water droplet blocks (703) and second flushing water droplet blocks (704). The first flushing water droplet block (703) has a water droplet-shaped structure. Multiple backwash nozzles (702) are provided on the surface of the first flushing water droplet block (703) and the second flushing water droplet block (704). Flow channels (701) are provided inside the first flushing water droplet block (703) and the second flushing water droplet block (704). The flow channels (701) are connected to the multiple backwash nozzles (702). Each backwash built-in block (700) is connected through a linkage structure. A three-stage water source connection pipe (231) is provided in the middle of one end of the filter cartridge base (201). The three-stage water source connection pipe (231) is connected to the backwash built-in block (700) through a linkage structure. The linkage structure also includes a linkage rotating column (240), and the backwash built-in block (700) is rotatably connected to the filter sealing cavity (207) through the linkage rotating column (240), and the end of the filter cartridge base (201) is provided with a drive rotation mechanism to drive multiple backwash built-in blocks (700) to rotate. The driving rotation mechanism includes a first rotating pipe (232), one end of which is connected to a three-stage water source connection pipe (231), and the other end of which is rotatably connected to a water storage pipe (236). The water storage pipe (236) is connected to a flushing water source input pipe (102). The end of the water storage pipe (236) near the first rotating pipe (232) is provided with a first engaging rotating ring (233), and the first engaging rotating ring (233) is located inside the first rotating pipe (232). The end of the first rotating pipe (232) near the water storage pipe (236) is provided with a second engaging rotating ring (234), and the second engaging rotating ring (234) works in conjunction with the first engaging rotating ring (233). A water flow channel (235) is formed inside the water storage pipe (236).

2. The backwash water filter according to claim 1, characterized in that: The top of the filter body (100) is detachably connected to a sealing top cover (103), the bottom of the filter body (100) is provided with a solid output base (106), and the filter body (100) is placed on the ground by multiple supporting base columns (104); Furthermore, the diffuser (400), the conical dispersion block (500), the filter body (100), and the solid output base (106) are all set at the same center. The conical dispersion block (500) has a conical structure, and the diffuser (400) has a bowl-shaped structure.

3. A backwash water filter according to claim 2, characterized in that: The filter cartridge base (201) is provided with a scale discharge assembly (600) at the bottom. The scale discharge assembly (600) includes a connecting plate (601). The connecting plate (601) is connected to the filter cartridge base (201) through two waterproof telescopic rods (603). The surface of the connecting plate (601) near the filter cartridge base (201) is provided with multiple conical sealing platforms (602). The bottom wall of the filter cartridge base (201) is provided with multiple scale discharge outlets (604), and the conical sealing platforms (602) are used in conjunction with the scale discharge outlets (604). Each filter sealing cavity (207) is provided with a scale discharge port (604), and the scale discharge port (604) is a frustum structure. The diameter of the end of the conical sealing platform (602) near the connecting plate (601) is larger than the diameter of the scale discharge port (604). The conical sealing platform (602) is made of rubber.

4. A backwash water filter according to claim 3, characterized in that: The outer wall of the filter cartridge base (201) is provided with a drive motor (237) on one side of the first rotating tube (232). The end of the drive motor (237) is provided with an output shaft (238), and the end of the output shaft (238) away from the drive motor (237) is rotatably connected to the filter cartridge base (201). The outer walls of the output shaft (238) and the first rotating tube (232) are both provided with teeth. The outer walls of the output shaft (238) and the first rotating tube (232) are both fitted with a linkage drive belt (239), and the linkage drive belt (239) is meshed with the output shaft (238) and the first rotating tube (232) respectively.

5. A backwash water filter according to claim 4, characterized in that: The three-stage water source connection pipe (231), the first rotating pipe (232), the water storage pipe (236), the linkage rotating column (240), and the backwash built-in block (700) are all set at the same center. When the flushing water source input pipe (102) is connected to the water source, the water source will enter the water flow channel (235), the first rotating pipe (232), the linkage rotating column (240), and the backwash built-in block (700) in sequence, and finally be output through multiple backwash nozzles (702).

6. A backwash water filter according to claim 5, characterized in that: The filtered water outlet (204) is connected to the filtered water outlet pipe (101). The water enters the filter body (100) through the water inlet pipe (105) and is finally output through the filtered water outlet (204) and the filtered water outlet pipe (101) after being filtered by the backwash filter assembly (200).

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