Air-water backwashing filter head

Abstract

The utility model provides an air-water backwashing filter head, and belongs to the technical field of water treatment. The air-water backwashing filter head comprises a filter rod and a cleaning device, the cleaning device comprises a connecting disc and a filter cap, the connecting disc is in threaded connection with the surface of the filter rod in a sleeving mode, the side face of the connecting disc is in threaded connection with the interior of the filter cap, filter holes are formed in the surface of the filter cap, the top of the filter cap is rotationally connected with a transmission part, and the transmission part is arranged on the surface of the fixing rod in a sleeving mode. The lower end of the transmission part is connected with a cleaning part; and the cleaning part is attached to the inner wall of the filter cap. Sewage can be conveyed into the filter cap through cooperation of the supporting rods and the connecting plates, suspended solids in the sewage can be filtered by the filter holes, the cleaning part can rotate along the inner wall of the filter cap through cooperation of the transmission part and the cleaning part, the suspended solids on the inner wall of the filter cap can be cleaned conveniently, the situation that the suspended solids are accumulated on the inner wall of the filter cap is reduced, and the cleaning effect is improved. The filtering holes are seriously blocked.

Description

Technical Field

[0001] The utility model relates to the field of water treatment, in particular to an air-water backwashing filter head. Background Art

[0002] The air-water backwash filter head is made of ABS engineering plastics, which has high pressure-bearing strength and will not break when stepped on or bumped. The thread is strengthened in the filter head structure, and a rubber gasket is added to ensure a solid connection that will never fall off. The filter head cap base is designed with a reinforced bottom seam, so that there is no dead water area between the filter plate and no mud accumulation.

[0003] At present, the existing air-water backwash filter head usually does not have a structure for cleaning the filter cap. As a result, during the sewage treatment process, solid impurities in the sewage will accumulate on the inner wall of the filter cap, which will seriously clog the filter cap, making it difficult to clean the filter cap, significantly reducing the sewage treatment capacity and lowering the water treatment efficiency. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an air-water backwash filter head, which aims to improve the problem that the existing air-water backwash filter head usually does not have a structure for cleaning the filter cap. During the sewage treatment process, solid impurities in the sewage will accumulate on the inner wall of the filter cap, which will seriously clog the filter cap.

[0005] The utility model is achieved in this way:

[0006] The utility model provides an air-water backwash filter head, comprising a filter rod and a cleaning device.

[0007] The top of the filter rod is connected to a support rod, the upper end of the support rod is connected to a connecting plate, the upper surface of the connecting plate is connected to a fixing rod, the cleaning device includes a connecting disc and a filter cap, the connecting disc is threadedly sleeved on the surface of the filter rod, and the side surface of the connecting disc is threadedly connected to the inner surface of the filter cap, filter holes are opened on the surface of the filter cap, the top of the filter cap is rotatably connected to a transmission member, the transmission member is sleeved on the surface of the fixing rod, the lower end of the transmission member is connected to a cleaning member, and the cleaning member is in contact with the inner wall of the filter cap.

[0008] In one embodiment of the present invention, an air inlet and an air outlet are provided at the bottom of the filter rod, and a plurality of air inlet holes are provided.

[0009] In one embodiment of the present invention, a pre-embedded seat is connected to the lower surface of the filter rod, and the pre-embedded seat is threadedly sleeved on the surface of the filter rod.

[0010] In one embodiment of the present utility model, the transmission member includes a rotating ring and a connecting ring, the rotating ring and the connecting ring are both rotatably installed on the top of the filter cap, and the rotating ring is fixedly connected to the connecting ring, the connecting ring and the rotating ring are both sleeved on the surface of the fixed rod, and the connecting ring is fixedly connected to the cleaning member.

[0011] In one embodiment of the present invention, a notch is provided on the top of the filter cap, and the connecting ring is fitted with an inner wall of the notch.

[0012] In one embodiment of the present invention, a first sealing ring is provided on the sliding sleeve on the surface of the fixed rod, and the first sealing ring is connected to the inner wall of the rotating ring and the connecting ring respectively.

[0013] In one embodiment of the present invention, a second sealing ring is connected to the top of the filter cap, and the second sealing ring is sleeved on the surface of the connecting ring.

[0014] In one embodiment of the present invention, the cleaning member includes a cleaning block and a cleaning brush, the cleaning block is fixedly connected to the connecting ring, the cleaning brush is connected to the cleaning block, and the cleaning brush is in contact with the inner wall of the filter cap.

[0015] The beneficial effects of the utility model are as follows: the utility model obtains an air-water backwash filter head through the above design. When in use, the filter cap is connected to the connecting plate, and the connecting plate is threadedly sleeved on the filter rod. The sewage can be transported from the lower end of the filter rod to the filter cap through the cooperation of the support rod and the connecting plate, and the solid suspended matter in the sewage will be filtered by the filter holes. After the air-water backwash is completed, the cleaning part can be rotated along the inner wall of the filter cap by the cooperation of the transmission part and the cleaning part on the fixed rod, which is beneficial to cleaning the solid suspended matter on the inner wall of the filter cap, reducing the possibility that solid impurities in the sewage will accumulate on the inner wall of the filter cap and seriously clog the filter holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of the air-water backwash filter head provided by an embodiment of the present utility model;

[0018] Figure 2 A partial cross-sectional view of the front structure of the connection between the filter rod and the connecting disk provided in an embodiment of the utility model;

[0019] Figure 3 A cross-sectional view of the structure of the connection between the connecting disc and the filter cap provided in an embodiment of the present utility model;

[0020] Figure 4 A partial structural cross-sectional view of the connection between the transmission member and the cleaning member provided in an embodiment of the present utility model.

[0021] In the figure: 100-filter rod; 110-support rod; 120-connecting plate; 130-fixing rod; 131-first sealing ring; 140-air inlet; 150-exhaust hole; 160-embedded seat; 200-cleaning device; 210-connecting plate; 220-filter cap; 221-notch; 222-second sealing ring; 230-filter hole; 240-transmission member; 241-rotating ring; 242-connecting ring; 250-cleaning member; 251-cleaning block; 252-cleaning brush. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example

[0024] See also Figure 1-Figure 4 The utility model provides an air-water backwash filter head, comprising a filter rod 100 and a cleaning device 200.

[0025] Among them, the cleaning device 200 is installed on the filter cap 220 on the filter rod 100. The cleaning device 200 can be used to clean the inner wall of the filter cap 220, reducing the possibility that solid impurities in the sewage will accumulate on the inner wall of the filter cap 220 and seriously clog the filter cap 220.

[0026] See also Figure 1-Figure 2 The top of the filter rod 100 is connected to a support rod 110 , the upper end of the support rod 110 is connected to a connecting plate 120 , and the upper surface of the connecting plate 120 is connected to a fixing rod 130 .

[0027] In this embodiment, an air inlet hole 140 and an exhaust hole 150 are provided at the bottom of the filter rod 100, and several air inlet holes 140 are provided. In a specific implementation, during the simultaneous flushing of air and water, water will enter from the bottom of the filter rod 100, and air can enter the filter rod 100 from the air inlet hole 140. When the air-water backwashing process is completed, the air in the filter rod 100 will be discharged from the exhaust hole 150; the lower surface of the filter rod 100 is connected to an embedded seat 160, and the embedded seat 160 is threadedly sleeved on the surface of the filter rod 100.

[0028] See also Figure 1-Figure 4 The cleaning device 200 includes a connecting plate 210 and a filter cap 220. The connecting plate 210 is threadedly sleeved on the surface of the filter rod 100, and the side of the connecting plate 210 is threadedly connected to the inner surface of the filter cap 220. The filter cap 220 is provided with a filter hole 230 on the surface. The top of the filter cap 220 is rotatably connected to a transmission member 240. The transmission member 240 is sleeved on the surface of the fixed rod 130. The lower end of the transmission member 240 is connected to a cleaning member 250. The cleaning member 250 fits the inner wall of the filter cap 220. In the specific implementation, the filter cap 220 is 20 is connected to the connecting disk 210, and then the connecting disk 210 is threadedly sleeved on the surface of the filter rod 100. When sewage enters the filter cap 220, the solid suspended matter in the sewage will be filtered by the filter hole 230. By rotating the transmission member 240, the cleaning member 250 on the fixed rod 130 can be driven to rotate along the inner wall of the filter cap 220, which is conducive to cleaning the solid suspended matter on the inner wall of the filter cap 220 and reducing the possibility that solid impurities in the sewage will accumulate on the inner wall of the filter cap 220 and seriously clog the filter cap 220.

[0029] In this embodiment, the transmission member 240 includes a rotating ring 241 and a connecting ring 242. The rotating ring 241 and the connecting ring 242 are both rotatably installed on the top of the filter cap 220, and the rotating ring 241 is fixedly connected to the connecting ring 242. The connecting ring 242 and the rotating ring 241 are both sleeved on the surface of the fixed rod 130, and the connecting ring 242 is fixedly connected to the cleaning member 250; a notch 221 is opened on the top of the filter cap 220, and the connecting ring 242 is fitted with the inner wall of the notch 221. In specific implementation, the connecting ring 242 is set in the notch 221 to reduce the possibility of the cleaning member 250 and the transmission member 240 moving up and down on the filter cap 220.

[0030] A first sealing ring 131 is slidingly sleeved on the surface of the fixed rod 130, and the first sealing ring 131 is respectively connected to the inner walls of the rotating ring 241 and the connecting ring 242. In a specific implementation, a first sealing ring is provided between the fixed rod 130 and the rotating ring 241 and the connecting ring 242 to reduce the possibility of sewage overflowing from the gap; a second sealing ring 222 is connected to the top of the filter cap 220, and the second sealing ring 222 is sleeved on the surface of the connecting ring 242. In a specific implementation, a second sealing ring 222 is provided at the top of the filter cap 220, so that the second sealing ring 222 is sleeved on the surface of the connecting ring 242 to reduce the possibility of sewage overflowing from the gap between the filter cap 220 and the connecting ring 242. It should be noted that the first sealing ring 131 and the second sealing ring 222 can be made of rubber or silicone.

[0031] The cleaning member 250 includes a cleaning block 251 and a cleaning brush 252 . The cleaning block 251 is fixedly connected to the connecting ring 242 . The cleaning brush 252 is connected to the cleaning block 251 , and the cleaning brush 252 is in contact with the inner wall of the filter cap 220 .

[0032] Specifically, the working principle of the air-water backwash filter head is as follows: when in use, the filter cap 220 is connected to the connecting disk 210, and the connecting disk 210 is threadedly sleeved on the filter rod 100. The sewage can be transported from the lower end of the filter rod 100 to the filter cap 220 through the support rod 110 and the connecting plate 120, and the solid suspended matter in the sewage will be filtered by the filter hole 230. After the air-water backwash is completed, the rotating ring 241 of the fixed rod 130 can be rotated to drive the connecting ring 241 to rotate, so that the cleaning brush 252 on the cleaning block 251 can rotate along the inner wall of the filter cap 220, which is conducive to cleaning the solid suspended matter on the inner wall of the filter cap 220, and reducing the possibility that solid impurities in the sewage will accumulate on the inner wall of the filter cap 220 and seriously clog the filter hole 230.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An air-water backwash filter head, characterized in that: include A filter rod (100), wherein the top of the filter rod (100) is connected to a support rod (110), the upper end of the support rod (110) is connected to a connecting plate (120), and the upper surface of the connecting plate (120) is connected to a fixing rod (130); A cleaning device (200) is provided. The cleaning device (200) comprises a connecting disc (210) and a filter cap (220). The connecting disc (210) is threadedly sleeved on the surface of the filter rod (100), and the side surface of the connecting disc (210) is threadedly connected to the inside of the filter cap (220). A filter hole (230) is provided on the surface of the filter cap (220). The top of the filter cap (220) is rotatably connected to a transmission member (240), the transmission member (240) is sleeved on the surface of the fixed rod (130), and the lower end of the transmission member (240) is connected to a cleaning member (250), and the cleaning member (250) is in contact with the inner wall of the filter cap (220).

2. The air-water backwash filter head according to claim 1, characterized in that: An air inlet (140) and an air outlet (150) are provided at the bottom of the filter rod (100), and a plurality of air inlet holes (140) are provided.

3. The air-water backwash filter head according to claim 1, characterized in that: The lower surface of the filter rod (100) is connected to a pre-embedded seat (160), and the pre-embedded seat (160) is threadedly sleeved on the surface of the filter rod (100).

4. The air-water backwash filter head according to claim 1, characterized in that: The transmission member (240) comprises a rotating ring (241) and a connecting ring (242); the rotating ring (241) and the connecting ring (242) are both rotatably mounted on the top of the filter cap (220); the rotating ring (241) and the connecting ring (242) are fixedly connected; the connecting ring (242) and the rotating ring (241) are both sleeved on the surface of the fixed rod (130); and the connecting ring (242) is fixedly connected to the cleaning member (250).

5. The air-water backwash filter head according to claim 4, characterized in that: A notch (221) is provided on the top of the filter cap (220), and the connecting ring (242) is in contact with the inner wall of the notch (221).

6. The air-water backwash filter head according to claim 5, characterized in that: A first sealing ring (131) is provided on the sliding sleeve of the surface of the fixed rod (130), and the first sealing ring (131) is connected to the inner walls of the rotating ring (241) and the connecting ring (242) respectively.

7. The air-water backwash filter head according to claim 6, characterized in that: A second sealing ring (222) is connected to the top of the filter cap (220), and the second sealing ring (222) is sleeved on the surface of the connecting ring (242).

8. The air-water backwash filter head according to claim 7, characterized in that: The cleaning member (250) comprises a cleaning block (251) and a cleaning brush (252); the cleaning block (251) is fixedly connected to the connecting ring (242); the cleaning brush (252) is connected to the cleaning block (251), and the cleaning brush (252) is in contact with the inner wall of the filter cap (220).

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