A blowdown mechanism for a prefilter

Abstract

The utility model discloses a kind of pollution discharge mechanisms of prefilter, it is related to prefilter technical field, including top body, the lower part of top body is fixedly installed with cylinder body by connecting hoop, the lower part of cylinder body is provided with pollution discharge mechanism for the inner wall of cylinder body is cleaned, pollution discharge mechanism includes: drive unit and cleaning unit, cleaning unit is set to the lower part of cylinder body, including rotationally installed in the rotating shaft of pollution discharge pipe inside, the top of rotating shaft is fixedly installed with connecting rod, and the one end of connecting rod is fixedly installed with connecting rod;Second big bevel gear is rotated by motor operation drive, second big bevel gear drives first small bevel gear rotation, first small bevel gear drives second small bevel gear rotation by transmission shaft, second small bevel gear drives first big bevel gear rotation, first big bevel gear drives connecting rod rotation by rotating shaft, connecting rod drives scraper assembly to scrape and clean the inside of cylinder body, to realize effectively cleaning pollution, improve cleaning efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pre-filter technology, specifically to a pre-filter discharge mechanism. Background Technology

[0002] Because municipal tap water pipes may contain rust, sediment, and other contaminants, pre-filters are usually installed on the pipes leading to households.

[0003] According to the patent titled "A Pre-filter with an Automatic Sewage Discharge Mechanism" (patent publication number: CN222092727U, patent publication date: 2024-12-03), it includes a motor assembly, a head assembly, a filter assembly, and a sewage discharge assembly. The motor assembly includes a motor-driven telescopic rod, the head assembly includes a filter bottle body, the filter assembly includes a frame, a filter screen, rotating blades, and a scraper, and the sewage discharge assembly includes a switch shaft, a sealing cover, and a pressure spring. This utility model can achieve automatic sewage discharge, reducing maintenance costs and extending maintenance cycles.

[0004] Based on the aforementioned existing technology, the existing pre-filter drainage mechanism still has the following problems: the existing pre-filter drainage mechanism usually cleans and drains the inside of the filter by backwashing. However, there are highly adhesive impurities on the inner cylinder of the filter, and backwashing is difficult to effectively clean and drain the impurities on the cylinder. Therefore, this utility model provides a drainage mechanism for a pre-filter. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a pre-filter discharge mechanism, which solves the following problems that existing pre-filter discharge mechanisms usually clean and discharge the internal components of the filter through backwashing. However, there are highly adhesive impurities on the internal cylinder of the filter, and backwashing is difficult to effectively clean and discharge the impurities on the cylinder.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pre-filter discharge mechanism, comprising a top body, a cylindrical body fixedly installed below the top body via a connecting hoop, a discharge pipe fixedly installed at the bottom of the cylindrical body, a second solenoid valve fixedly installed at one end of the discharge pipe, a first solenoid valve fixedly installed at the output end of the top body, a fixed seat fixedly installed inside the top body, and a filter cartridge rotatably installed on the internal thread of the fixed seat. A discharge mechanism is provided below the cylindrical body for cleaning the inner wall of the cylindrical body. The discharge mechanism includes:

[0007] The cleaning unit is located below the cylinder and includes a rotating shaft rotatably installed inside the drain pipe. A connecting rod is fixedly installed on the top of the rotating shaft. The rotation of the rotating shaft drives the scraper assembly to rotate through the connecting rod to clean the inner wall of the cylinder. A first large conical tooth is fixedly installed at the bottom of the rotating shaft.

[0008] The drive unit is located below the cylinder and is used to drive the cleaning unit.

[0009] Preferably, the drive unit includes a fixed plate fixedly installed on the outside of the top body, a motor fixedly installed on the top of the fixed plate, and a second large bevel gear fixedly installed through the fixed plate at the output end of the motor.

[0010] Preferably, a mounting base is fixedly installed at the bottom of the fixing plate, and a drive shaft is rotatably installed inside the bottom end of the mounting base. A first small bevel gear is fixedly installed at the right end of the drive shaft, and a second small bevel gear is fixedly installed at the left side of the drive shaft.

[0011] Preferably, the first small bevel tooth is meshed with the second large bevel tooth, and the second small bevel tooth meshes with the first large bevel tooth to realize the transmission of the cleaning unit.

[0012] Preferably, a protective shell is fixedly installed below the top body to protect the structure below the fixed plate.

[0013] Preferably, the scraper assembly includes a base fixedly installed at one end of the connecting rod, a T-shaped groove is provided on one side of the base, a trapezoidal rubber strip is slidably inserted into the inside of the T-shaped groove, a cleaning rubber strip is fixedly installed on one side of the trapezoidal rubber strip, and the cleaning rubber strip is in contact with the inner wall of the cylinder.

[0014] This invention provides a pre-filter discharge mechanism. Compared with the prior art, it has the following advantages:

[0015] 1. The sewage discharge mechanism of this pre-filter is driven by a motor to rotate the second large conical tooth, which in turn drives the first small conical tooth to rotate. The first small conical tooth drives the second small conical tooth to rotate via a transmission shaft, which in turn drives the first large conical tooth to rotate. The first large conical tooth drives the connecting rod to rotate via a rotating shaft. The connecting rod drives the scraper assembly to scrape and clean the inside of the cylinder, thereby achieving effective cleaning and sewage discharge and improving cleaning efficiency.

[0016] 2. The pre-filter's drainage mechanism is equipped with a scraper assembly, and the trapezoidal rubber strip slides into the T-shaped groove, thereby facilitating the replacement of the cleaning rubber strip and improving the replacement efficiency of the cleaning rubber strip. Attached Figure Description

[0017] Figure 1 This is a right-side perspective view of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional perspective view of the present invention.

[0019] Figure 3 This is a partial cross-sectional perspective view of the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the scraper assembly of this utility model.

[0021] In the diagram: 1-Top body, 2-Drainage mechanism, 21-Cleaning unit, 211-Rotating shaft, 212-First large conical tooth, 213-Connecting rod, 22-Drive unit, 221-Fixing plate, 222-Motor, 223-Second large conical tooth, 224-Mounting base, 225-Drive shaft, 226-First small conical tooth, 227-Second small conical tooth, 228-Protective shell, 3-Scraper assembly, 31-Base, 32-T-groove, 33-Trapezoidal rubber strip, 34-Cleaning rubber strip, 4-Cylinder body, 5-Connecting clamp, 6-First solenoid valve, 7-Drainage pipe, 8-Second solenoid valve, 9-Fixing base, 10-Filter cartridge. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 This utility model provides a technical solution:

[0024] A pre-filter's draining mechanism includes a top body 1. A cylinder 4 is fixedly installed below the top body 1 via a connecting clamp 5. A drain pipe 7 is fixedly installed at the bottom of the cylinder 4, and a second solenoid valve 8 is fixedly installed at one end of the drain pipe 7. A first solenoid valve 6 is fixedly installed at the output end of the top body 1. A fixing seat 9 is fixedly installed inside the top body 1, and a filter cartridge 10 is rotatably installed on the internal thread of the fixing seat 9. A draining mechanism 2 is provided below the cylinder 4 for cleaning the inner wall of the cylinder 4. The draining mechanism 2 includes:

[0025] The cleaning unit 21 is located below the cylinder 4 and includes a rotating shaft 211 rotatably installed inside the drain pipe 7. A connecting rod 213 is fixedly installed on the top of the rotating shaft 211. The rotation of the rotating shaft 211 drives the scraper assembly 3 to rotate through the connecting rod 213 to clean the inner wall of the cylinder 4. A first large conical tooth 212 is fixedly installed at the bottom of the rotating shaft 211.

[0026] The drive unit 22 is located below the cylinder 4 and is used to drive the cleaning unit 21.

[0027] In this embodiment, the drive unit 22 includes a fixed plate 221 fixedly installed on the outside of the top body 1. A motor 222 is fixedly installed on the top of the fixed plate 221, and a second large bevel gear 223 is fixedly installed through the fixed plate 221 at the output end of the motor 222. A mounting base 224 is fixedly installed at the bottom of the fixed plate 221. A transmission shaft 225 is rotatably installed inside the bottom end of the mounting base 224. A first small bevel gear 226 is fixedly installed on the right end of the transmission shaft 225, and a second small bevel gear 227 is fixedly installed on the left side of the transmission shaft 225. The first small bevel gear 226 meshes with the second large bevel gear 223, and the second small bevel gear 227 meshes with the first large bevel gear 212 to realize the transmission of the cleaning unit 21. A protective shell 228 is fixedly installed below the top body 1 to protect the structure below the fixed plate 221.

[0028] The motor 222KV3SF-8521F-WR is electrically connected to an external power source and is operated by a human-controlled control panel. The motor 222 drives the second large bevel gear 223 to rotate, which in turn drives the first small bevel gear 226 to rotate. The first small bevel gear 226 drives the second small bevel gear 227 to rotate via the transmission shaft 225. The second small bevel gear 227 drives the first large bevel gear 212 to rotate, which in turn drives the connecting rod 213 to rotate via the rotating shaft 211. The connecting rod 213 drives the scraper assembly 3 to scrape and clean the inside of the cylinder 4, thereby achieving effective cleaning and sewage discharge and improving cleaning efficiency.

[0029] In this embodiment, the scraper assembly 3 includes a base 31 fixedly installed at one end of the connecting rod 213. A T-shaped groove 32 is provided on one side of the base 31. A trapezoidal rubber strip 33 is slidably inserted into the inside of the T-shaped groove 32. A cleaning rubber strip 34 is fixedly installed on one side of the trapezoidal rubber strip 33, and the cleaning rubber strip 34 is in contact with the inner wall of the cylinder 4.

[0030] The trapezoidal rubber strip 33 slides into the interior of the T-shaped groove 32, thereby facilitating the replacement of the cleaning rubber strip 34 and improving the replacement efficiency of the cleaning rubber strip 34.

[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0032] During operation, firstly, the second solenoid valve 8 is closed and the first solenoid valve 6 is opened. Water enters the interior of the cylinder 4 through the water inlet pipe of the top body 1, and is filtered by the filter cartridge 10 before being discharged through the water outlet pipe. During sewage discharge, the second solenoid valve 8 is opened and the first solenoid valve 6 is closed. Water enters the interior of the cylinder 4 through the water inlet pipe of the top body 1 to rinse the interior of the cylinder 4. The water is then discharged through the sewage outlet pipe 7 and the second solenoid valve 8. During rinsing, the motor 222 drives the second large bevel gear 223 to rotate. The second large bevel gear 223 drives the first small bevel gear 226 to rotate. The first small bevel gear 226 drives the second small bevel gear 227 to rotate through the transmission shaft 225. The second small bevel gear 227 drives the first large bevel gear 212 to rotate. The first large bevel gear 212 drives the connecting rod 213 to rotate through the rotating shaft 211. The connecting rod 213 drives the scraper assembly 3 to scrape and clean the interior of the cylinder 4.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

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

Claims

1. A pre-filter discharge mechanism, comprising a top body (1), a cylindrical body (4) fixedly installed below the top body (1) via a connecting clamp (5), a discharge pipe (7) fixedly installed at the bottom of the cylindrical body (4), a second solenoid valve (8) fixedly installed at one end of the discharge pipe (7), a first solenoid valve (6) fixedly installed at the output end of the top body (1), a fixing seat (9) fixedly installed inside the top body (1), and a filter cartridge (10) rotatably installed inside the fixing seat (9), characterized in that: A sewage discharge mechanism (2) is provided below the cylinder (4) for cleaning the inner wall of the cylinder (4). The sewage discharge mechanism (2) includes: The cleaning unit (21) is located below the cylinder (4) and includes a rotating shaft (211) rotatably installed inside the drain pipe (7). A connecting rod (213) is fixedly installed on the top of the rotating shaft (211). The rotating shaft (211) rotates and drives the scraper assembly (3) to rotate through the connecting rod (213) to clean the inner wall of the cylinder (4). A first large conical tooth (212) is fixedly installed at the bottom of the rotating shaft (211). The drive unit (22) is located below the cylinder (4) and is used to drive the cleaning unit (21).

2. The sewage discharge mechanism of a pre-filter according to claim 1, characterized in that: The drive unit (22) includes a fixed plate (221) fixedly installed outside the top body (1). A motor (222) is fixedly installed on the top of the fixed plate (221), and a second large bevel tooth (223) is fixedly installed through the fixed plate (221) at the output end of the motor (222).

3. The sewage discharge mechanism of a pre-filter according to claim 2, characterized in that: The bottom of the fixed plate (221) is fixedly installed with a mounting base (224), and a drive shaft (225) is rotatably installed inside the bottom end of the mounting base (224). A first small bevel tooth (226) is fixedly installed on the right end of the drive shaft (225), and a second small bevel tooth (227) is fixedly installed on the left side of the drive shaft (225).

4. The sewage discharge mechanism of a pre-filter according to claim 3, characterized in that: The first small bevel tooth (226) is meshed with the second large bevel tooth (223), and the second small bevel tooth (227) meshes with the first large bevel tooth (212) to realize the transmission of the cleaning unit (21).

5. The sewage discharge mechanism of a pre-filter according to claim 2, characterized in that: A protective shell (228) is fixedly installed below the top body (1) to protect the structure below the fixing plate (221).

6. The sewage discharge mechanism of a pre-filter according to claim 1, characterized in that: The scraper assembly (3) includes a base (31) fixedly installed at one end of the connecting rod (213). A T-shaped groove (32) is provided on one side of the base (31). A trapezoidal rubber strip (33) is slidably inserted into the T-shaped groove (32). A cleaning rubber strip (34) is fixedly installed on one side of the trapezoidal rubber strip (33), and the cleaning rubber strip (34) is in contact with the inner wall of the cylinder (4).

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