Filtering device used for gardening maintenance watering carts

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-3 , A filter device for a greening maintenance sprinkler, comprising a lower shell 1 and an upper shell 5. The lower end of the upper shell 5 is also fixedly provided with a gasket 11, the upper end of the upper shell 5 is connected with a water inlet pipe 6, and the lower shell 1 is connected with The outlet pipe 16, the lower end of the upper shell 5 is clamped on the upper surface of the lower shell 1, and is pre-tightened by the first bolt 2. A second filter 15 is arranged under the lower shell 1, and both ends of the second filter 15 are fixedly installed and limited Position plate 13, and one end of the limit plate 13 penetrates the lower shell 1 and extends to the outside of the lower shell 1, and then is limited by a limiting mechanism. The outer surface of the limiting plate 13 is also provided with a sealing ring, and the limiting mechanism includes fixed installation There is a support plate 17 on the lower shell 1, and the support plate 17 is located above the limit plate 13, a second bolt 12 is provided on the upper side of the support plate 17, and the second bolt 12 penetrates the support plate 17 and the limit plate 13 and extends to Under the limit plate 13, the limit plate 13 is limited. When in use, the water inlet pipe 6 is connected to the water supply mechanism, and the water outlet pipe 16 is connected to the sprinkler, and then the sprinkler is continuously provided with water through the filter device. The arrangement of the shell 5 and the lower shell 1 can realize the disassembly of the filter device and then clean the inside of the filter device, thereby improving the service life of the filter device. The sealing gasket 11 can ensure that the upper shell 5 and the lower shell 1 The tightness of the inter-installation prevents water leakage, and the limit mechanism can also extract the second filter screen 15 and then clean its surface.

[0023] The lower shell 1 above the second filter screen 15 is also provided with a filter mechanism, and the lower shell 1 above the filter mechanism is also fixedly installed with an annular baffle 3 that is matched with the lower shell 1. There are two limit posts 10, a first filter screen 4 is also placed on the annular baffle 3, and the first filter screen 4 is clamped on the limit posts 10. The filter mechanism includes a fine stone layer 8, a crushed stone layer 9 and an activated carbon layer 14. The gravel layer 9 is located below the first filter screen 4, the activated carbon layer 14 is located above the second filter screen 15, and the refined stone layer 8 is located between the gravel layer 9 and the activated carbon layer 14. When in use, water passes through the water inlet pipe 6 Entering the lower shell 1, and then passing through the refined stone layer 8, the crushed stone layer 9 and the activated carbon layer 14, the water can be filtered many times. After a certain period of time, the filter mechanism can be replaced, which effectively ensures the cleanliness of the water. After the filtration is completed, it finally flows out through the outlet pipe 16.

[0024] The water inlet pipe 6 is also provided with a preliminary filter mechanism 7 which includes a housing 71 installed on the water inlet pipe 6. A square sleeve 72 is installed on one side of the housing 71 through the housing 71, and the inner side of the square sleeve 72 A sealing plug 74 matched with the square sleeve 72 is inserted. The sealing plug 74 is in clearance fit with the square sleeve 72. A magnetic plate 76 is also fixedly installed on one side of the sealing plug 74, and the magnetic plate 76 is located inside the housing 71. The surface of the plate 76 is also provided with a plurality of through holes 77 penetrating the magnetic plate 76. The side of the sealing plug 74 away from the magnetic plate 76 is also fixedly installed with a limit cover 75, and the side of the sealing plug 74 close to the magnetic plate 76 is also fixedly installed with rubber The mat 73, when used, through the added preliminary filter mechanism 7, before the water enters the filter device, the metal particles in the water can be adsorbed by the magnetic plate 76 and then removed. After a certain period of time, the magnetic plate 76 can be passed through the square The sleeve 72 is taken out, and the metal particles on the surface of the magnetic plate 76 are cleaned to prevent the metal particles from entering the filter device, thereby causing blockage.