A high flow backwash form filter

Abstract

The utility model discloses a big flow backwash form filter, including main body frame, the inside symmetry of main body frame is equipped with two groups of filter tubes, and the one end fixedly connected with valve body is approached to the filter tube of inlet pipe, the inside rotatory connection of valve body has steel ball, and steel ball rotatory connection is in the inside of valve body, and the inside of steel ball is penetrated and is established with 2 the hole of 90 degrees, steel ball's top is penetrated valve body and is fixedly connected with connecting shaft in end surface, and the top of connecting shaft is equipped with the handle of bushing, and the handle center rotatory connection has fixed screw rod. This big flow backwash form filter can drive steel ball rotation through rotating handle, make the blowoff pipe and filter intercommunication, start the backwash function of filter after, make the dirty particle on the surface of filter screen separate, and with medium flow from blowoff pipe, and then make the constructor not need to move filter to the cleaning workshop, can clean in the construction place, make the difficulty of constructor to clean filter reduce.

Description

Technical Field

[0001] This utility model relates to the field of backwash filter technology, and in particular to a high-flow-rate backwash filter. Background Technology

[0002] Hydraulic components used in underground coal mines are highly polluted by coal dust, making the emulsified oil inside the hydraulic system's emulsified oil tank extremely susceptible to contamination by coal ash and dust. Since the emulsified oil is used to lubricate and prevent rust on the hydraulic system's components and columns, when there is a large amount of particulate matter inside the emulsified oil, it can cause abnormal wear or damage to various seals in the hydraulic system, leading to frequent failures in the hydraulic system within a unit of time and posing a great threat to the normal operation of the fully mechanized mining equipment.

[0003] Therefore, the working medium at the source of the hydraulic system needs to be filtered so that the cleanliness of the working medium is significantly improved when it enters the next level component system, creating good conditions for the secondary filtration and working conditions of the system components. However, due to the viscous texture of emulsified oil, particulate matter will adhere to the surface of the filter screen and be difficult to clean. Therefore, the user needs to disassemble the filter module and transport it to the repair shop outside the well for cleaning, which increases the difficulty of cleaning the filter module.

[0004] In response to the above situation, we propose a high-flow-rate backwashing filter. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-flow-rate backwashing filter.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-flow-rate backwash filter includes a main frame, an outlet pipe fixedly connected to the output end of the main frame, an inlet pipe fixedly connected to the input end of the main frame, two sets of filter tubes symmetrically installed inside the main frame, a valve body fixedly connected to the end of the filter tube near the inlet pipe, a steel ball rotatably connected inside the valve body, and two 90-degree holes penetrating the inside of the steel ball.

[0008] The top of the steel ball penetrates the valve body and is fixedly connected to a connecting shaft at its end face. A rotating shaft is installed on the outer surface of the connecting shaft, and the rotating shaft is installed inside the valve body.

[0009] A handle is fitted on the top of the connecting shaft, and a fixing screw is rotatably connected to the center of the handle. The bottom of the fixing screw is threaded into the inside of the connecting shaft, and a cylindrical pin is fixedly connected to the outer surface of the valve body.

[0010] The outer surface of the connecting shaft is fixedly connected with a limiting pad.

[0011] Preferably, a large valve seat is fixedly connected to the inner wall of the valve body on the side near the inlet pipe, and a small valve seat is fixedly connected to the inner wall of the valve body on the side away from the inlet pipe, with the steel ball installed between the small valve seat and the large valve seat.

[0012] Preferably, a screw sleeve is installed at the end of the filter tube away from the inlet pipe, and a filter element is slidably connected inside the filter tube.

[0013] Preferably, the two sets of filter tubes are fixedly connected to the outer surface of the outlet tube on the side closest to the inlet tube, and screw plugs are fixedly connected to the side of the two sets of filter tubes away from the inlet tube.

[0014] Preferably, the two sets of valve bodies are fixedly connected to the outer surface of the inlet pipe at the end closest to the outlet pipe, and a drain pipe is fixedly connected to the end of the two sets of valve bodies furthest from the outlet pipe.

[0015] Preferably, the cylindrical pin is used to limit the rotation angle of the limiting pad.

[0016] The high-flow-rate backwashing filter proposed in this utility model has the following advantages: During cleaning, the user can rotate the handle to rotate the steel ball, connecting the drain pipe to the filter. Then, the backwashing function of the filter is activated, causing the dirt particles on the filter screen to detach and flow out with the medium through the drain pipe. This allows the operator to clean the filter on-site without moving it to a cleaning workshop, reducing the difficulty of cleaning the filter. After cleaning, the filter's filtration speed and efficiency are effectively improved, resulting in a reduction of particulate matter inside the medium. This reduces abnormal wear between the various seals in the hydraulic system, further reducing the probability of hydraulic system unit failures. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall outer surface structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the valve body of this utility model.

[0020] In the diagram: 1. Main frame; 2. Inlet pipe; 3. Outlet pipe; 4. Filter pipe; 5. Plug; 6. Screw sleeve; 7. Valve body; 8. Large valve seat; 9. Small valve seat; 10. Drain pipe; 11. Steel ball; 12. Fixing screw; 13. Connecting shaft; 14. Handle; 15. Rotating shaft; 16. Limiting pad; 17. Cylindrical pin; 18. Filter element. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Referring to Figures 1-3, a high-flow-rate backwash filter includes a main frame 1, an outlet pipe 3 fixedly connected to the output end of the main frame 1, an inlet pipe 2 fixedly connected to the input end of the main frame 1, two sets of valve bodies 7 fixedly connected to the outer surface of the inlet pipe 2 at the end near the outlet pipe 3, and a drain pipe 10 fixedly connected to the end of the two sets of valve bodies 7 away from the outlet pipe 3.

[0024] Two sets of filter tubes 4 are symmetrically installed inside the main frame 1. A valve body 7 is fixedly connected to one end of each filter tube 4 near the inlet pipe 2. A steel ball 11 is rotatably connected inside the valve body 7. The steel ball 11 has two 90-degree through holes. The top of the steel ball 11 passes through the valve body 7 and is fixedly connected to its end face with a connecting shaft 13. A rotating shaft 15 is installed on the outer surface of the connecting shaft 13 and is installed inside the valve body 7. A handle 14 is fitted onto the top of the connecting shaft 13. A fixing screw 12 is rotatably connected to the center of the handle 14. The bottom of the fixing screw 12 is threaded into the inside of the connecting shaft 13. A cylindrical pin 17 is fixedly connected to the outer surface of the valve body 7. A limit pad 16 is fixedly connected around the outer surface of the connecting shaft 13. A large valve seat 8 is fixedly connected to the inner wall of the valve body 7 near the inlet pipe 2, and a... Small valve seat 9 and steel ball 11 are installed between small valve seat 9 and large valve seat 8. A screw sleeve 6 is installed at the end of filter tube 4 away from inlet pipe 2. Filter element 18 is slidably connected inside filter tube 4. A spacer ring is provided at the upper part of the filter tube 4 housing. The upper cover has a lower port extending into the inner cavity of the housing. Filter element 18 is radially positioned inside filter tube 4 and can move up and down along filter tube 4. A spring is provided between filter element 18 and the inner bottom of filter tube 4. Hydraulic medium can drive the medium flow, thereby driving the impeller to rotate. Filter element 18 has a shoulder that changes the medium flow. This shoulder switches between filtration and rinsing functions by contacting the lower port of the upper cover or the spacer ring of the housing. The side of the two sets of filter tubes 4 closest to inlet pipe 2 is fixedly connected to the outer surface of outlet pipe 3. Screw plugs 5 are fixedly connected to the side of the two sets of filter tubes 4 away from inlet pipe 2. Cylindrical pin 17 is used to limit the rotation angle of the limiting pad 16.

[0025] In summary: When using this utility model, the user connects the outlet pipe 3 to the hydraulic system and then connects the other side to the medium. The user then starts the filtration device, allowing the medium to enter the filter tube 4 from the inlet pipe 2. The medium then passes through the filter element 18 to achieve filtration. After filtration, the clean medium enters the hydraulic system from the outlet pipe 3 to lubricate the hydraulic system. When cleaning the filter element 18, the user first rotates the handle 14 to rotate the connecting shaft 13, which in turn rotates the steel ball 11, connecting the drain pipe 10 to the filter tube 4. Then, the user starts the reverse flushing mechanism of the filtration device, causing the medium inside the filter tube 4 to flow in the reverse direction. This reverse flow of liquid beats the surface of the filter element 18, causing particles on the surface of the filter element 18 to fall off and flow out through the drain pipe 10 along with the liquid flow.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-flow-rate backwash filter, comprising a main frame (1), wherein an outlet pipe (3) is fixedly connected to the output end of the main frame (1), and an inlet pipe (2) is fixedly connected to the input end of the main frame (1), characterized in that, Two sets of filter tubes (4) are symmetrically installed inside the main frame (1). A valve body (7) is fixedly connected to one end of the filter tube (4) near the inlet pipe (2). A steel ball (11) is rotatably connected inside the valve body (7). The steel ball (11) is rotatably connected inside the valve body (7). Two holes at 90 degrees are opened through the inside of the steel ball (11). The top of the steel ball (11) penetrates the valve body (7) and the end face is fixedly connected to a connecting shaft (13). A rotating shaft (15) is installed on the outer surface of the connecting shaft (13), and the rotating shaft (15) is installed inside the valve body (7). A handle (14) is sleeved on the top of the connecting shaft (13), and a fixing screw (12) is rotatably connected to the center of the handle (14). The bottom of the fixing screw (12) is threaded to the inside of the connecting shaft (13), and a cylindrical pin (17) is fixedly connected to the outer surface of the valve body (7). The connecting shaft (13) is fixedly connected to the outer surface of the limiting pad (16).

2. A high flow backflush type filter according to claim 1 wherein, A large valve seat (8) is fixedly connected to the inner wall of the valve body (7) on the side close to the inlet pipe (2), and a small valve seat (9) is fixedly connected to the inner wall of the valve body (7) on the side away from the inlet pipe (2). The steel ball (11) is installed between the small valve seat (9) and the large valve seat (8).

3. A high flow backflush type filter according to claim 1 wherein, A screw sleeve (6) is installed at the end of the filter tube (4) away from the inlet tube (2), and a filter element (18) is slidably connected inside the filter tube (4).

4. A high flow backflush type filter according to claim 1 wherein, The two sets of filter tubes (4) are fixedly connected to the outer surface of the outlet tube (3) on the side closer to the inlet tube (2), and screw plugs (5) are fixedly connected to the side of the two sets of filter tubes (4) away from the inlet tube (2).

5. A high flow backflush type filter according to claim 1 wherein, The two sets of valve bodies (7) are fixedly connected to the outer surface of the inlet pipe (2) at the end near the outlet pipe (3), and a drain pipe (10) is fixedly connected to the end of the two sets of valve bodies (7) away from the outlet pipe (3).

6. A high flow backflush type filter according to claim 1 wherein, The cylindrical pin (17) is used to limit the rotation angle of the limiting pad (16).

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