Underground tube well filtering device

Abstract

The utility model discloses an underground tube well filtering device which comprises a fixing cylinder, a first discharging hole used for discharging sand is formed in the bottom of the fixing cylinder, and a second sand discharging hole used for discharging sand is formed in the bottom of a filtering net. Through the design of structures such as a first discharging hole, a second sand discharging hole and a connecting pipe, when the device is washed, water for washing can enter the fixed cylinder through a first water inlet hole formed in the surface of the fixed cylinder, so that impurities filtered on the surface of the filter screen can be washed through the water entering the device, and the device is convenient to use. When the filter is used for washing the filter screen, washed impurities can be discharged out of the fixed cylinder through the first sand discharge hole, water used for washing the filter screen can wash impurities filtered out of the surface of the filter cylinder after passing through the filter screen, and washed impurities can be discharged out of the fixed cylinder through the second sand discharge hole and the first sand discharge hole. And flushed impurities can be discharged conveniently, impurity accumulation is prevented, and the impurity cleaning effect can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters for pipe wells, in particular to an underground pipe well filtering device. Background Art

[0002] Underground tube well filtration device, also known as tube well filter, is an important water treatment equipment, mainly used to filter and purify water resources extracted from underground tube wells. The tube well filter can effectively filter out impurities such as sediment, suspended matter, and organisms in the water, providing clean and hygienic water sources.

[0003] At present, when the existing pipe well filter is flushed, the impurities filtered out are not easy to be flushed away, and the flushed impurities are not easy to discharge, which will clog the filter layer. Therefore, we need to propose an underground pipe well filter device. Utility Model Content

[0004] The purpose of the utility model is to provide an underground pipe well filtering device, which can easily discharge the flushed impurities during flushing, prevent the accumulation of impurities, and improve the cleaning effect of impurities, so as to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A filter device for an underground pipe well comprises a fixed cylinder, in which a filter cylinder for water filtration is fixedly installed, a plurality of tapered portions are provided on the filter cylinder, a filter screen for water filtration is provided on the surface of the filter cylinder, the tapered portions are in contact with the inner wall of the filter cylinder, a first discharge hole for sand discharge is provided at the bottom of the fixed cylinder, and a second sand discharge hole for sand discharge is provided at the bottom of the filter screen.

[0007] Preferably, a flange is fixedly connected to the top of the fixing cylinder, and a plurality of mounting holes are provided on the flange in an annular array.

[0008] Preferably, the fixing cylinder is provided with a plurality of first water inlet holes for water intake.

[0009] Preferably, the top and bottom of the filter cartridge are both provided with fixing rings, the filter screen is provided between the fixing rings at the top and bottom of the filter cartridge, the top of the filter screen contacts the fixing ring at the top of the filter cartridge, and the bottom of the filter screen contacts the fixing ring at the bottom of the filter cartridge.

[0010] Preferably, a mounting ring is installed on the internal thread of the flange, and the mounting ring is pressed tightly against the fixing ring on the top of the filter cartridge.

[0011] Preferably, a mounting groove is provided at the inner bottom of the fixing cylinder, a connecting pipe is provided in the mounting groove, a plurality of connecting rods are fixedly connected to the surface of the connecting pipe, and one end of the connecting rod is fixedly installed on the inner wall of the mounting groove.

[0012] Preferably, a third sand discharge hole for discharging sand is opened on the upper portion of the connecting pipe.

[0013] Preferably, the upper end of the connecting pipe is opened, and a plurality of second water inlet holes for discharging water are provided on the surface of the connecting pipe.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model is designed with structures such as the first discharge hole, the second sand discharge hole and the connecting pipe. When flushing the device, the flushing water can enter the interior of the fixed cylinder through the first water inlet hole opened on the surface of the fixed cylinder, so that the impurities filtered on the surface of the filter screen can be flushed by the entering water, and the flushed impurities can be discharged from the fixed cylinder through the first sand discharge hole. Moreover, the water used for flushing the filter screen can flush the impurities filtered on the surface of the filter cylinder after passing through the filter screen, and the flushed impurities can be discharged from the fixed cylinder through the second sand discharge hole and the first sand discharge hole. The utility model can easily discharge the flushed impurities during flushing, prevent the accumulation of impurities, and improve the cleaning effect of impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is one of the schematic cross-sectional views of the present invention;

[0018] Figure 3 This is the second schematic cross-sectional view of the structure of the present invention;

[0019] Figure 4 This is the third schematic cross-sectional view of the structure of the present invention;

[0020] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure of area A in the middle.

[0021] In the figure: 1. Fixed cylinder; 2. Flange; 3. First water inlet hole; 4. First discharge hole; 5. Filter screen; 6. Second sand discharge hole; 7. Second water inlet hole; 8. Filter cylinder; 9. Conical portion; 10. Mounting ring; 11. Connecting pipe; 12. Third sand discharge hole; 13. Connecting rod; 14. Mounting groove; 15. Mounting hole; 16. Fixed ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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] See also Figure 1-5 , the utility model provides a technical solution:

[0024] A filtering device for an underground pipe well comprises a fixed cylinder 1, in which a filter cylinder 8 for water filtration is fixedly installed. The filter cylinder 8 is provided with multiple groups of tapered portions 9. The surface of the filter cylinder 8 is sleeved with a filter screen 5 for water filtration. The tapered portions 9 are in contact with the inner wall of the filter cylinder 8. A first discharge hole 4 for sand discharge is provided at the bottom of the fixed cylinder 1, and a second sand discharge hole 6 for sand discharge is provided at the bottom of the filter screen 5.

[0025] It should be noted that the provision of the tapered portion 9 can increase the contact area between water and the filter cartridge 8 , thereby improving the filtering efficiency of the filter cartridge 8 on water.

[0026] In an optional embodiment, a flange 2 is fixedly connected to the top of the fixing cylinder 1 , and a plurality of mounting holes 15 are provided on the flange 2 in an annular array.

[0027] It should be noted that the fixing cylinder 1 can be installed by passing the fastener through the mounting hole 15 on the flange 2;

[0028] In an optional embodiment, the fixed cylinder 1 is provided with a plurality of first water inlet holes 3 for water intake, the upper end of the connecting pipe 11 is open, and the surface of the connecting pipe 11 is provided with a plurality of second water inlet holes 7 for water discharge.

[0029] It should be noted that when groundwater is extracted, the groundwater can enter the fixed cylinder 1 through the first water inlet hole 3, and then be filtered through the filter net 5, the filter cylinder 8 and the conical portion 9. The filtered water can pass through the second water inlet hole 7, enter the connecting pipe 11, and be discharged from the device through the connecting pipe 11.

[0030] In an optional embodiment: a fixing ring 16 is provided at the top and bottom of the filter cartridge 8, the filter screen 5 is provided between the fixing rings 16 at the top and bottom of the filter cartridge 8, the top of the filter screen 5 contacts the fixing ring 16 at the top of the filter cartridge 8, and the bottom of the filter screen 5 contacts the fixing ring 16 at the bottom of the filter cartridge 8.

[0031] It should be noted that the filter screen 5 can be positioned by the fixing ring 16 , which can improve the stability of the filter screen 5 after installation.

[0032] In an optional embodiment, a mounting ring 10 is installed on the internal thread of the flange 2 , and the mounting ring 10 is pressed tightly against the fixing ring 16 on the top of the filter cartridge 8 .

[0033] It should be noted that the filter cartridge 8 can be pressed and fixed by the mounting ring 10 , and the filter cartridge 8 can be easily installed when being mounted.

[0034] In an optional embodiment: a mounting groove 14 is opened at the inner bottom of the fixed cylinder 1, a connecting pipe 11 is arranged in the mounting groove 14, and a plurality of connecting rods 13 are fixedly connected to the surface of the connecting pipe 11, and one end of the connecting rod 13 is fixedly installed on the inner wall of the mounting groove 14.

[0035] It should be noted that the connecting pipe 11 can be installed through the connecting rod 13. Through the setting of the connecting pipe 11, the filtered water can pass through the second water inlet hole 7, enter the connecting pipe 11, and be discharged from the device through the connecting pipe 11;

[0036] In an optional embodiment, a third sand discharge hole 12 for discharging sand is opened on the upper portion of the connecting pipe 11 .

[0037] In actual use, the fixing cylinder 1 is installed after the fastener is passed through the mounting hole 15. When groundwater is extracted, the groundwater can enter the fixing cylinder 1 through the first water inlet hole 3, and then be filtered by the filter 5, the filter cylinder 8 and the tapered portion 9. The filtered water can then enter the connecting pipe 11 through the second water inlet hole 7 and be discharged from the device through the connecting pipe 11.

[0038] When the device needs to be flushed, the flushing water can enter the interior of the fixed cylinder 1 through the first water inlet hole 3 opened on the surface of the fixed cylinder 1, and the water entering the fixed cylinder 1 can flush the impurities filtered on the surface of the filter screen 5, and the flushed impurities can be discharged from the fixed cylinder 1 through the first discharge hole 4. The water used to flush the filter screen 5 can flush the impurities filtered out of the surface of the filter screen 5 after passing through the filter screen 5, and the flushed impurities can be discharged from the fixed cylinder 1 through the second sand discharge hole 6 and the first discharge hole 4, and some of the impurities and water that enter the filter cylinder 8 after flushing can fall into the installation groove 14 for collection. After cleaning the filter screen 5 and the filter cylinder 8, the fixed cylinder 1 can be turned upside down, so that the impurities and water can be discharged after passing through the third sand discharge hole 12 and the second water inlet hole 7.

[0039] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underground pipe well filtering device, comprising a fixed cylinder (1), characterized in that: A filter cartridge (8) for water filtration is fixedly installed in the fixed cylinder (1), and a plurality of groups of tapered portions (9) are provided on the filter cartridge (8). A filter screen (5) for water filtration is sleeved on the surface of the filter cartridge (8), and the tapered portion (9) contacts the inner wall of the filter cartridge (8). A first discharge hole (4) for sand discharge is provided at the bottom of the fixed cylinder (1), and a second sand discharge hole (6) for sand discharge is provided at the bottom of the filter screen (5).

2. An underground pipe well filtering device according to claim 1, characterized in that: A flange (2) is fixedly connected to the top of the fixed cylinder (1), and a plurality of mounting holes (15) are provided on the flange (2) in an annular array.

3. The underground pipe well filtering device according to claim 1, characterized in that: The fixed cylinder (1) is provided with a plurality of first water inlet holes (3) for water inlet.

4. The underground pipe well filtering device according to claim 2, characterized in that: The top and bottom of the filter cartridge (8) are both provided with fixing rings (16), and the filter screen (5) is provided between the fixing rings (16) at the top and bottom of the filter cartridge (8). The top of the filter screen (5) contacts the fixing ring (16) at the top of the filter cartridge (8), and the bottom of the filter screen (5) contacts the fixing ring (16) at the bottom of the filter cartridge (8).

5. The underground pipe well filtering device according to claim 4, characterized in that: The flange (2) is internally threaded with a mounting ring (10), and the mounting ring (10) is pressed tightly against a fixing ring (16) on the top of the filter cartridge (8).

6. The underground pipe well filtering device according to claim 1, characterized in that: The inner bottom of the fixed cylinder (1) is provided with a mounting groove (14), a connecting pipe (11) is provided in the mounting groove (14), a plurality of connecting rods (13) are fixedly connected to the surface of the connecting pipe (11), and one end of the connecting rod (13) is fixedly mounted on the inner wall of the mounting groove (14).

7. The underground pipe well filtering device according to claim 6, characterized in that: A third sand discharge hole (12) for discharging sand is provided on the upper portion of the connecting pipe (11).

8. The underground pipe well filtering device according to claim 7, characterized in that: The upper end of the connecting pipe (11) is open, and a plurality of groups of second water inlet holes (7) for discharging water are provided on the surface of the connecting pipe (11).

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