Filtering device with backwashing function

Abstract

The utility model relates to water treatment and fluid purification technical field, and disclose a kind of filtering equipment with backwash function, including support frame, the surface of support frame is fixedly connected with filter cartridge, the surface of support frame is equipped with sealing device, the sealing device includes hollow frame, the surface of hollow frame is fixedly connected with support frame, the inner surface of hollow frame is slidably connected with sliding rod, one end of sliding rod is fixedly connected with fixed block, the side of fixed block is fixedly connected with sealing cover, the surface of sealing cover is fixedly connected with L-shaped frame, the inner surface of L-shaped frame is rotatably connected with round wheel. This kind of filtering equipment with backwash function, avoid filter cartridge seal failure, leading to the raw liquid that has not been treated backwash water permeate into equipment internal structure, long time, cause metal component corrosion, circuit short-circuit, sealing structure can effectively avoid above problem, improve the practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of water treatment and fluid purification technology, and in particular to a filtration device with backwashing function. Background Technology

[0002] As a core device for separating impurities from media and purifying fluid quality, filtration equipment has been widely used in many fields such as industrial circulating water treatment, petrochemical refining, municipal water supply, pharmaceutical purification, and new energy production. In industrial production, it can intercept rust particles and biological slime in cooling water, ensuring the efficient operation of heat exchangers. In the municipal sector, it can remove suspended solids and colloidal impurities from raw water, meeting drinking water quality standards. With the increasing demands for fluid purity from various industries and the increasingly stringent environmental regulations, the operating efficiency, maintenance cost, and stability of filtration equipment have become key indicators for evaluating its performance. However, filtration equipment has the following problems: long-term inadequate sealing leads to corrosion of metal parts and short circuits. Long-term leakage, pollution, and overload will cause premature aging of core components such as filter screens and valves, increasing maintenance frequency and replacement costs. The valves for the outflowing water are complex devices with many parts and cumbersome operating procedures. Therefore, a new type of filtration equipment is proposed to address the above problems.

[0003] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the filter cartridge seal fails, causing untreated raw liquid backwash water to seep into the internal structure of the equipment; long-term poor sealing leads to corrosion of metal parts and short circuits; long-term leakage, pollution and overload will cause premature aging of core components such as filter screens and valves, increasing maintenance frequency and replacement costs. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing technologies suffer from filter cartridge seal failure, which allows untreated raw liquid backwash water to seep into the internal structure of the equipment. Long-term poor sealing leads to corrosion of metal parts, short circuits, and long-term leakage, pollution, and overload, causing premature aging of core components such as filter screens and valves, increasing maintenance frequency and replacement costs. Therefore, we propose a filter device with backwashing function.

[0005] To achieve the above objectives, this application adopts the following technical solution: a filtration device with backwashing function, comprising a support frame, a filter cylinder fixedly connected to the surface of the support frame, a sealing device provided on the surface of the support frame, the sealing device comprising a hollow frame, the hollow frame being fixedly connected to the surface of the support frame, a sliding rod slidably connected to the inner surface of the hollow frame, a fixing block being fixedly connected to one end of the sliding rod, a sealing cover being fixedly connected to one side of the fixing block, an L-shaped frame being fixedly connected to the surface of the sealing cover, a wheel being rotatably connected to the inner surface of the L-shaped frame, a support plate being fixedly connected to the surface of the filter cylinder, the inner surface of the support plate being slidably connected to the wheel, and a limit groove being formed on the arc surface of the sliding rod.

[0006] Preferably, a setting plate is fixedly connected to the surface of the support frame, two round rods are fixedly connected to one side of the setting plate, a clamping plate is fixedly connected to one end of the two round rods, and a limit plate is slidably connected to the arc surface of the two round rods.

[0007] Preferably, a first spring is fixedly connected to one side of the limiting plate, and the other end of the first spring is fixedly connected to the clamping plate.

[0008] Preferably, a drive frame is fixedly connected to one side of the card plate, and a blocking rod is slidably connected to the inner surface of the drive frame.

[0009] Preferably, the surface of the filter cartridge is provided with a liquid outlet device, the liquid outlet device includes a hollow tube, the hollow tube is fixedly connected to the surface of the filter cartridge, the arc surface of the hollow tube is fixedly connected to a liquid outlet pipe, the inner surface of the hollow tube is slidably connected to a blocking ball, the arc surface of the blocking ball is fixedly connected to a long rod, and the end of the long rod away from the blocking ball is fixedly connected to a round block.

[0010] Preferably, a ring is fixedly connected to the end of the hollow tube away from the filter cylinder, and a second spring is sleeved on the arc surface of the long rod, with the two ends of the second spring fixedly connected to one side of the circular block and one end of the ring, respectively.

[0011] Preferably, the hollow tube has a shaped frame fixedly connected to its arc surface, and a positioning plate is slidably inserted into the inner surface of the shaped frame.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, a sealing device is installed to achieve a sealing effect on the filter cartridge, preventing the filter cartridge seal from failing and causing untreated raw liquid backwash water to seep into the internal structure of the equipment. Long-term poor sealing can lead to corrosion of metal parts, short circuits, and long-term leakage, pollution, and overload, causing premature aging of core components such as filters and valves, increasing maintenance frequency and replacement costs. The sealing structure can effectively avoid the above problems and improve the practicality of the device.

[0014] In this invention, by setting up a liquid discharge device, the liquid inside the filter cartridge is quickly discharged. Traditional water discharge valves are complex devices with many parts and cumbersome operating procedures. Operators need to be familiar with multiple operating steps, which increases the difficulty of operation and training costs. Slight carelessness can lead to errors or failure to discharge liquid normally, making the entire liquid discharge process lengthy and reducing production efficiency. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the sealing device of this utility model;

[0018] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0019] Figure 4 This is a partial structural diagram of the sealing device in this utility model;

[0020] Figure 5 This is a schematic diagram of the liquid discharge device in this utility model;

[0021] Figure 6 This is a cross-sectional view of the hollow tube of this utility model.

[0022] Legend: 1. Support frame; 2. Filter cylinder; 3. Sealing device; 301. Hollow frame; 302. Sliding rod; 303. Fixing block; 304. Sealing cover; 305. L-shaped frame; 306. Round wheel; 307. Support plate; 308. Limiting groove; 309. Setting plate; 310. Round rod; 311. Clamping plate; 312. Limiting plate; 313. First spring; 314. Drive frame; 315. Blocking rod; 4. Liquid discharge device; 41. Hollow tube; 42. Liquid discharge pipe; 43. Blocking ball; 44. Long rod; 45. Round block; 46. Ring; 47. Second spring; 48. Irregularly shaped frame; 49. Positioning plate. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] Reference Figure 1 As shown, this utility model provides a technical solution: a filtration device with backwashing function, including a support frame 1, a filter cylinder 2 fixedly connected to the surface of the support frame 1, and a sealing device 3 on the surface of the support frame 1. By setting the sealing device 3, the filter cylinder 2 is sealed, preventing the filter cylinder 2 from failing to seal and allowing untreated raw liquid backwash water to seep into the internal structure of the device. Long-term inadequate sealing can lead to corrosion of metal parts, short circuits, and premature aging of core components such as filters and valves due to long-term leakage, contamination, and overload. This sealing structure effectively avoids the above problems and improves the practicality of the device. The surface of the filter cylinder 2 is equipped with a liquid discharge device 4, which allows for rapid discharge of liquid from the filter cylinder 2. Traditional liquid discharge devices are complex, with many parts and cumbersome operating procedures. Operators need to be familiar with multiple operating steps, increasing the difficulty of operation and training costs. Slight carelessness can lead to errors or failure to discharge liquid normally, making the entire liquid discharge process lengthy and reducing production efficiency.

[0025] The specific design and function of the sealing device 3 and the liquid outlet device 4 will be explained in detail below.

[0026] Reference Figure 2 , Figure 3 and Figure 4As shown in this embodiment: the sealing device 3 includes a hollow frame 301, which is fixedly connected to the surface of the support frame 1. A sliding rod 302 is slidably connected to the inner surface of the hollow frame 301. A fixing block 303 is fixedly connected to one end of the sliding rod 302. A sealing cover 304 is fixedly connected to one side of the fixing block 303. An L-shaped frame 305 is fixedly connected to the surface of the sealing cover 304. A wheel 306 is rotatably connected to the inner surface of the L-shaped frame 305. A support plate 307 is fixedly connected to the surface of the filter cylinder 2. The inner surface of the support plate 307 is slidably connected to the wheel 306. A limiting groove 308 is formed on the arc surface of the sliding rod 302. A setting plate 309 is fixedly connected to the surface of the support frame 1. Two round rods 310 are fixedly connected to one side of the setting plate 309. A clamping plate 311 is fixedly connected to one end of the two round rods 310. A limiting plate 312 is slidably connected to the arc surface of the two round rods 310. By setting a limiting plate 312, the limiting plate 312 is slid into the limiting groove 308 to limit the sliding rod 302, further sealing the filter cylinder 2. A first spring 313 is fixedly connected to one side of the limiting plate 312, and the other end of the first spring 313 is fixedly connected to the clamping plate 311. The first spring 313 automatically springs the limiting plate 312 into the inner surface of the limiting groove 308. A drive frame 314 is fixedly connected to one side of the clamping plate 311, and a blocking rod 315 is slidably connected to the inner surface of the drive frame 314. When the operator needs to open the sealing cover 304, the blocking rod 315 blocks the limiting plate 312, making it easier for the operator to open the sealing cover 304.

[0027] Reference Figure 5 and Figure 6 As shown, specifically, the liquid outlet device 4 includes a hollow tube 41, which is fixedly connected to the surface of the filter cylinder 2. A liquid outlet pipe 42 is fixedly connected to the arc surface of the hollow tube 41. A blocking ball 43 is slidably connected to the inner surface of the hollow tube 41. A long rod 44 is fixedly connected to the arc surface of the blocking ball 43, and a circular block 45 is fixedly connected to the end of the long rod 44 away from the blocking ball 43. A circular ring 46 is fixedly connected to the end of the hollow tube 41 away from the filter cylinder 2. A second spring 47 is fitted onto the arc surface of the long rod 44. The two ends of the second spring 47 are fixedly connected to one side of the circular block 45 and one end of the circular ring 46, respectively. The elastic force of the second spring 47 pulls the blocking ball 43 to the front end of the liquid outlet pipe 42, limiting the position of the blocking ball 43 and preventing it from retracting. A shaped frame 48 is fixedly connected to the arc surface of the hollow tube 41, and a positioning plate 49 is slidably inserted into the inner surface of the shaped frame 48. When it is necessary to unload water, the positioning plate 49 blocks the round block 45 to facilitate the unloading of liquid by the staff.

[0028] Working principle: When the operator needs to use the sealing device 3 to seal the filter cartridge 2, firstly, the limiting plate 312 is pulled to slide on the surface of the two round rods 310. Under the support of the setting plate 309 and the clamping plate 311, the first spring 313 is compressed. The sliding blocking rod 315 slides on the inner surface of the drive frame 314 until the blocking rod 315 can limit the limiting plate 312. The limiting plate 312 slides on the arc surface of the round rods 310, pulling the sliding rod 302 to slide on the inner surface of the hollow frame 301. Under the support of the support plate 307, the round wheel 306 rotates on the inner surface of the support plate 307. The L-shaped frame 305 and the round wheel... 306 rotates around the sliding rod 302, and the sealing cover 304 drives the fixing block 303 and the sealing cover 304 to move downward. The wheel 306 enters the inner surface of the support plate 307. When the sealing cover 304 tightly seals the filter cylinder 2, the sliding rod 302 abuts against the surface of the support frame 1, and the sliding blocking rod 315 slides on the inner surface of the drive frame 314 until the blocking rod 315 no longer limits the limiting plate 312. Then the first spring 313 is rebounded, and the limiting plate 312 slides on the arc surface of the round rod 310 until the limiting plate 312 enters the inner surface of the limiting groove 308, limiting the sliding rod 302 and thus sealing the filter cylinder 2.

[0029] When the staff needs to use the liquid outlet device 4 to drain the water from the filter cartridge 2, they first pull the round block 45 to drive the long rod 44 and the blocking ball 43 to slide on the inner surface of the hollow tube 41. With the support of the round block 45 and the ring 46, the second spring 47 is stretched. When the blocking ball 43 moves away from one end of the liquid outlet tube 42, the sliding positioning plate 49 slides on the inner surface of the irregular frame 48 until the positioning plate 49 can block the round block 45, allowing the liquid in the filter cartridge 2 to flow out. When the water has finished flowing out, the sliding positioning plate 49 slides on the inner surface of the irregular frame 48 until the sliding positioning plate 49 no longer blocks the round block 45. Then the second spring 47 rebounds, and the round block 45 drives the long rod 44 and the blocking ball 43 to slide on the inner surface of the hollow tube 41. When the blocking ball 43 approaches the other end of the hollow tube 41, it can block the water in the filter cartridge 2 again.

[0030] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A filtration device with a backwashing function, characterized in that, The system includes a support frame (1), on which a filter cylinder (2) is fixedly connected. A sealing device (3) is provided on the surface of the support frame (1). The sealing device (3) includes a hollow frame (301), which is fixedly connected to the surface of the support frame (1). A sliding rod (302) is slidably connected to the inner surface of the hollow frame (301). A fixing block (303) is fixedly connected to one end of the sliding rod (302). A sealing cover (304) is fixedly connected to one side of the fixing block (303). An L-shaped frame (305) is fixedly connected to the surface of the sealing cover (304). A wheel (306) is rotatably connected to the inner surface of the L-shaped frame (305). A support plate (307) is fixedly connected to the surface of the filter cylinder (2). The inner surface of the support plate (307) is slidably connected to the wheel (306). A limiting groove (308) is provided on the arc surface of the sliding rod (302).

2. A filtration device with backwashing function according to claim 1, characterized in that: The support frame (1) is fixedly connected to a setting plate (309), and two round rods (310) are fixedly connected to one side of the setting plate (309). A clamping plate (311) is fixedly connected to one end of the two round rods (310), and a limiting plate (312) is slidably connected to the arc surface of the two round rods (310).

3. A filtration device with backwashing function according to claim 2, characterized in that: A first spring (313) is fixedly connected to one side of the limiting plate (312), and the other end of the first spring (313) is fixedly connected to the card plate (311).

4. A filtration device with backwashing function according to claim 2, characterized in that: A drive frame (314) is fixedly connected to one side of the card plate (311), and a blocking rod (315) is slidably connected to the inner surface of the drive frame (314).

5. A filtration device with backwashing function according to claim 1, characterized in that: The surface of the filter cylinder (2) is provided with a liquid outlet device (4), which includes a hollow tube (41). The hollow tube (41) is fixedly connected to the surface of the filter cylinder (2). The arc surface of the hollow tube (41) is fixedly connected to a liquid outlet pipe (42). The inner surface of the hollow tube (41) is slidably connected to a blocking ball (43). The arc surface of the blocking ball (43) is fixedly connected to a long rod (44). The end of the long rod (44) away from the blocking ball (43) is fixedly connected to a round block (45).

6. A filtration device with backwashing function according to claim 5, characterized in that: The hollow tube (41) is fixedly connected to a ring (46) at one end away from the filter cylinder (2). The arc surface of the long rod (44) is fitted with a second spring (47). The two ends of the second spring (47) are fixedly connected to one side of the round block (45) and one end of the ring (46), respectively.

7. A filtration device with backwashing function according to claim 5, characterized in that: The hollow tube (41) is fixedly connected to a shaped frame (48) on its arc surface, and a positioning plate (49) is slidably inserted into the inner surface of the shaped frame (48).

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