Drainage filtering device

Abstract

The utility model belongs to the field of filtering devices, and particularly relates to a drainage filtering device which comprises a shell, a supporting frame is fixedly connected to the inner wall of the shell, the surface of the supporting frame is fixedly connected with the inner wall of a coarse filtering net, the surface of the coarse filtering net is fixedly connected with the inner wall of the shell, and a center column is fixedly connected to the back face of the supporting frame. According to the drainage filtering device, through the arranged main fluted disc, when water flow passes through a coarse filter screen and enters an impeller, the impeller drives the main fluted disc to rotate, the inclined surface of the main fluted disc and the inclined surface of the surface of the fluted disc extrude each other, so that the slave fluted disc moves forwards to drive a reinforcing ring to extrude a spring; the spring pushes the driven fluted disc to reset, so that the driven fluted disc drives the fine filter screen to shake in a reciprocating manner, water flow can quickly pass through the fine filter screen, the filtering speed of the fine filter screen is higher, and the blockage condition is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a drainage filtering device. Background Art

[0002] Drainage pipes are mainly responsible for the drainage of rainwater, sewage, farmland irrigation and other drainage tasks. Drainage pipes are divided into plastic drainage pipes, concrete pipes and reinforced concrete pipes. In the drainage process, the sewage discharged into the river needs to be filtered to a certain extent to prevent a large amount of sewage from entering the river and polluting the river.

[0003] At present, in the existing technology, the sewage inside the sewer often contains a large amount of flocculent impurities. During the sewage discharge process, such flocculent impurities are extremely easy to adsorb on the surface of the filter net, thereby reducing the filtration speed of the filter net and easily causing blockage. In view of this, we propose a drainage filtration device. Utility Model Content

[0004] The main purpose of the utility model is to provide a drainage filtering device, which can solve the problems raised in the above technical background.

[0005] To achieve the above-mentioned purpose, the utility model proposes a drainage filtering device, including a shell, the inner wall of the shell is fixedly connected to a support frame, the surface of the support frame is fixedly connected to the inner wall of a coarse filter screen, the surface of the coarse filter screen is fixedly connected to the inner wall of the shell, and the back of the support frame is fixedly connected to a center column.

[0006] Preferably, the surface of the center column is socketed with the surface of the impeller. Through the provision of the impeller, the streamlined blades on the surface of the impeller can convert the impact force of the water flow into the rotational force of the impeller to the greatest extent, so that the impeller can provide stronger power to the main toothed disc, and even in areas with relatively gentle water flow, the fine filter can work normally. One end of the impeller is rotatably connected to the back side of the support frame, and the other end of the impeller is fixedly connected to one end of the main toothed disc, and the surface of the main toothed disc is meshed with the surface of the slave toothed disc.

[0007] Preferably, the back side of the secondary toothed disc is fixedly connected to the front side of the reinforcement ring, the surface of the reinforcement ring is fixedly connected to the inner wall of the fine filter, and the surface of the fine filter is slidably connected to the inner wall of the outer shell.

[0008] Preferably, the back surface of the reinforcement ring is fixedly connected to one end of the spring, the back surface of the spring is rotatably connected to the bottom surface of the pressure ring, and the surface of the pressure ring is threadedly connected to the surface of the center column.

[0009] Preferably, the inner walls of the main gear disc, the slave gear disc and the reinforcement ring are slidably connected to the surface of the central column.

[0010] Preferably, the surface end face of the center column is provided with a thread that matches the pressure ring.

[0011] The utility model provides a drainage filter device, which has the following beneficial effects:

[0012] (1) The drainage filter device has a main toothed disc. When water flows through the coarse filter screen and enters the impeller, the impeller drives the main toothed disc to rotate. The inclined surfaces of the main toothed disc squeeze each other, so that the slave toothed disc moves forward and drives the reinforcement ring to squeeze the spring. When the main toothed disc rotates and re-engages with the slave toothed disc, the spring pushes the slave toothed disc to reset, so that the slave toothed disc drives the fine filter screen to reciprocate and shake, so that the water flow can quickly pass through the fine filter screen, making the filtering speed of the fine filter screen faster and preventing clogging.

[0013] (2) The drainage filter device, through the pressure ring set, can change the position of the pressure ring on the central column by rotating the pressure ring, thereby changing the initial pressure of the pressure ring on the spring, so that when the spring resets the fine filter, the moving speed of the fine filter changes, thereby changing the resetting speed of the fine filter according to different water qualities, making the device more universal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic cross-sectional view of the structure of the utility model;

[0017] Figure 3 It is an enlarged schematic diagram of structure A of the utility model.

[0018] Explanation of the accompanying figures: 1. Housing; 2. Support frame; 3. Coarse filter screen; 4. Center column; 5. Impeller; 6. Main gear disc; 7. Slave gear disc; 8. Reinforcement ring; 9. Fine filter screen; 10. Spring; 11. Pressure ring.

[0019] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 3 The utility model proposes a drainage filter device, including a shell 1, the inner wall of the shell 1 is fixedly connected with a support frame 2, the surface of the support frame 2 is fixedly connected to the inner wall of the coarse filter screen 3, the surface of the coarse filter screen 3 is fixedly connected to the inner wall of the shell 1, the back of the support frame 2 is fixedly connected with a center column 4, the surface end face of the center column 4 is provided with a thread matched with a pressure ring 11, the surface of the center column 4 is sleeved with the surface of the impeller 5, through the provided impeller 5, the streamlined blades on the surface of the impeller 5 can maximize the impact force of the water flow into the rotation force of the impeller 5, so that the impeller 5 can provide stronger power for the main toothed disk 6, even in the area where the water flow is relatively slow, the fine filter screen 9 can work normally, one end of the impeller 5 is rotatably connected to the back of the support frame 2, and the other end of the impeller 5 is fixedly connected to one end of the main toothed disk 6, through the provided main toothed disk 6, when the water flow When passing through the coarse filter screen 3 and entering the impeller 5, the impeller 5 drives the main toothed disc 6 to rotate, and the surface inclined surfaces of the main toothed disc 6 squeeze each other with the inclined surfaces of the surface of the secondary toothed disc 7, so that the secondary toothed disc 7 moves forward and drives the reinforcement ring 8 to squeeze the spring 10. When the main toothed disc 6 rotates and re-engages with the secondary toothed disc 7, the spring 10 pushes the secondary toothed disc 7 to reset, so that the secondary toothed disc 7 drives the fine filter screen 9 to shake back and forth, so that the water flow can quickly pass through the fine filter screen 9, so that the filtering speed of the fine filter screen 9 is faster and there will be no blockage. The surface of the main toothed disc 6 is meshed with the surface of the secondary toothed disc 7, and the back side of the secondary toothed disc 7 is fixedly connected to the front side of the reinforcement ring 8, the surface of the reinforcement ring 8 is fixedly connected to the inner wall of the fine filter screen 9, the surface of the fine filter screen 9 is slidably connected to the inner wall of the outer shell 1, the back side of the reinforcement ring 8 is fixedly connected to one end of the spring 10, and the back side of the spring 10 is rotatably connected to the bottom surface of the pressure ring 11;

[0022] Furthermore, the surface of the pressure ring 11 is threadedly connected to the surface of the center column 4. The pressure ring 11 is set and the position of the pressure ring 11 on the center column 4 is changed by rotating the pressure ring 11, thereby changing the initial pressure of the pressure ring 11 on the spring 10, so that when the spring 10 is in the process of resetting the fine filter 9, the moving speed of the fine filter 9 changes, thereby changing the resetting speed of the fine filter 9 according to different water qualities, making the device more universal, and the inner walls of the main gear disc 6, the slave gear disc 7 and the reinforcement ring 8 are slidingly connected to the surface of the center column 4.

[0023] In the utility model, when in use, when water flows through the coarse filter screen 3 and enters the impeller 5, the impeller 5 drives the main toothed disc 6 to rotate, and the surface inclined surfaces of the main toothed disc 6 squeeze each other from the inclined surfaces of the surface of the toothed disc 7, so that the slave toothed disc 7 moves forward and drives the reinforcement ring 8 to squeeze the spring 10. When the main toothed disc 6 rotates and re-engages with the slave toothed disc 7, the spring 10 pushes the slave toothed disc 7 to reset, so that the slave toothed disc 7 drives the fine filter screen 9 to reciprocate and shake. When the pressure of the spring 10 needs to be changed, the position of the pressure ring 11 on the center column 4 is changed by rotating the pressure ring 11, thereby changing the initial pressure of the pressure ring 11 on the spring 10, so that the movement speed of the fine filter screen 9 changes during the process of resetting the fine filter screen 9 by the spring 10.

[0024] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A drainage filter device, comprising a housing (1), characterized in that: The inner wall of the outer shell (1) is fixedly connected to a support frame (2), the surface of the support frame (2) is fixedly connected to the inner wall of the coarse filter (3), the surface of the coarse filter (3) is fixedly connected to the inner wall of the outer shell (1), the back of the support frame (2) is fixedly connected to a center column (4), the surface of the center column (4) is sleeved with the surface of the impeller (5), one end of the impeller (5) is rotatably connected to the back of the support frame (2), the other end of the impeller (5) is fixedly connected to one end of the main toothed disc (6), the surface of the main toothed disc (6) is meshed with the surface of the slave toothed disc (7), and the back of the slave toothed disc (7) is connected to the reinforcement ring. The front side of the reinforcing ring (8) is fixedly connected, the surface of the reinforcing ring (8) is fixedly connected to the inner wall of the fine filter (9), the surface of the fine filter (9) is slidably connected to the inner wall of the outer shell (1), the back side of the reinforcing ring (8) is fixedly connected to one end of the spring (10), the back side of the spring (10) is rotatably connected to the bottom surface of the pressure ring (11), the surface of the pressure ring (11) is threadedly connected to the surface of the center column (4), the inner wall of the main gear disc (6), the slave gear disc (7) and the reinforcing ring (8) are slidably connected to the surface of the center column (4), and the surface end face of the center column (4) is provided with a thread matching the pressure ring (11).

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