Self-weight drooping type drip-proof device for suspended micro-spray irrigation

Abstract

The invention discloses a self-weight drooping type anti-dripping device for suspended micro-spray irrigation. The anti-dripping device comprises a micro-spray head connector, a water storage barrel, a sealing cover, a water conveying pipe connector and an elastic sealing body. A water distribution barrel is arranged on the sealing cover and is provided with a water conveying pipe joint; an inner cavity top plate of the water distribution barrel is provided with a water inlet, and the inner side wall and an inner side annular table of the water distribution barrel are provided with outer flow channels; a central pipe is arranged in a cavity of the water storage barrel; the bottom of the central pipe is communicated with an inner cavity of the micro-sprayer joint; a cavity between the outer wall of the central pipe and the inner wall of the water storage cylinder is communicated with the outer flow channel; a water outlet support joint is arranged at the upper end of the central pipe; an inner flow channel is formed in the side wall of the upper end part of the water outlet supporting joint; a water collecting cavity in the middle of the water outlet supporting joint is communicated with a cavity in the outer side of the water outlet supporting joint through the inner flow channel; and an elastic sealing body is arranged between the water outlet support joint and the water inlet in the cavity of the water distribution barrel. The suspended water conveying pipe is kept drooping through water stored in the suspended water conveying pipe, a balance weight sleeve is omitted, and economic benefits are improved.

Description

Technical Field

[0001] The invention relates to an improvement of a drip preventer for a suspended micro-spray water-saving irrigation system, belonging to the technical field of suspended micro-spray water-saving irrigation, in particular to a self-weight drooping drip preventer for suspended micro-spray irrigation. Background Art

[0002] The current suspended micro-sprinkler water-saving irrigation system includes a water delivery main pipe, a water delivery branch pipe, an upper joint, a suspended water delivery pipe, a weight sleeve, a drip preventer and a micro-sprinkler. Fig.15 As shown, the water outlet at the lower end of the drip preventer 11 is connected to the micro sprinkler 12, the water pipe joint at the upper end of the drip preventer 11 is connected to the lower end of the hanging water pipe 9, the upper end of the hanging water pipe 9 is connected to the water branch pipe through the upper joint 13, and a weight sleeve 10 is sleeved on the lower end of the hanging water pipe 9, and the weight sleeve 10 is located above the drip preventer 11, so that the micro sprinkler 12 at the lower end of the drip preventer 11 can remain drooping, preventing the micro sprinkler 12 from shaking when rotating and spraying water, affecting the spray irrigation effect. The disadvantage of the combination of this drip preventer and the weight sleeve is that the weight sleeve needs to be made and installed separately, the on-site assembly is relatively complicated, the assembly efficiency is low, and the overall use cost of the suspended micro sprinkler water-saving irrigation system is increased. Summary of the invention

[0003] The purpose of the present invention is to provide a self-weight drooping drip preventer for suspended micro-sprinkler irrigation, which can be quickly installed between a micro-sprinkler and a hanging water pipe, and the gravity generated by the water stored in the micro-sprinkler keeps the hanging water pipe drooping, thereby preventing the micro-sprinkler from shaking when rotating and spraying water, thereby improving the on-site assembly efficiency.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a self-weight drooping drip preventer for suspended micro-sprinkler irrigation, comprising a micro-sprinkler joint, a water storage cylinder, a cover, a water pipe joint and an elastic sealing body, the micro-sprinkler joint is fixedly arranged in the middle of the bottom plate of the water storage cylinder, and the upper end of the water storage cylinder is fixedly provided with a cover; characterized in that: A water distribution cylinder is fixedly provided at the middle through hole of the cover, and a water pipe joint is fixedly provided at the upper end of the water distribution cylinder; an inner ring platform is provided around the inner cavity top plate of the water distribution cylinder, and a water inlet is fixedly provided in the middle of the inner cavity top plate of the water distribution cylinder, the water inlet is connected to the inner cavity of the water pipe joint, and the space between the inner ring platform and the water inlet is the water distribution cavity, and an outer flow channel is provided on the inner side wall and the inner ring platform of the water distribution cylinder, and the upper opening of the outer flow channel is connected to the water distribution cavity; A central tube is fixedly provided on the bottom plate in the water storage cylinder cavity, the inner cavity of the central tube is a water outlet cavity, and the bottom of the water outlet cavity is connected to the inner cavity of the micro-sprinkler joint; the cavity between the outer wall of the central tube and the inner wall of the water storage cylinder is connected to the lower opening of the outer flow channel; a water outlet support joint is fixedly provided on the upper end of the central tube; The upper part of the water outlet support joint is inserted into the cavity of the water distribution tube, and an inner flow channel is provided on the side wall of the upper end of the water outlet support joint. The water collecting cavity in the middle of the water outlet support joint is connected with the cavity outside the water outlet support joint through the inner flow channel, and the water collecting cavity of the water outlet support joint is connected with the water outlet cavity of the central tube; An elastic sealing body is provided between the upper end of the water outlet support joint and the water inlet in the water distribution tube cavity. The bottom sealing body of the elastic sealing body is fixedly arranged on the upper end edge of the water outlet support joint, and the upper end surface of the elastic sealing body is adapted to the water inlet.

[0005] The elastic sealing body is made of silicone and is composed of a positioning ring and an arc-shaped cap. The upper convex surface of the middle part of the arc-shaped cap is sealed and adapted to the water inlet. A positioning ring is fixed on the periphery of the arc-shaped cap. The positioning ring is clamped and fixed between the inner ring platform in the water distribution tube cavity and the upper end surface of the water outlet support joint.

[0006] A groove is provided at the bottom of the elastic sealing body, and the groove is located below the arc cap. A support ring matching the inner wall of the groove is provided on the inner side wall of the upper end surface of the water outlet support joint. The support ring is inserted into the groove cavity, and the upper end of the support ring is against the bottom surface periphery of the arc cap.

[0007] There are 2 to 4 outer flow channels, which are evenly distributed on the inner wall and the inner ring platform of the water distribution cylinder.

[0008] There are 2 to 4 inner flow channels, which are evenly distributed on the side wall of the upper port of the water outlet support joint and the support ring.

[0009] The bottom of the water outlet support joint is provided with a bell mouth, and the upper end of the bell mouth is connected with the water collecting chamber; the side wall of the upper end of the central pipe is provided with an outer inclined surface which is sealed and fixed with the bell mouth.

[0010] The beneficial effects of the present invention are that it can be quickly installed between the micro sprinkler and the hanging water pipe, and the gravity generated by the water stored in the micro sprinkler keeps the hanging water pipe drooping, preventing the micro sprinkler from shaking when rotating and spraying water, thereby improving the on-site assembly efficiency and eliminating the need for a separately made and installed counterweight sleeve, thereby reducing the overall use cost of the hanging micro sprinkler water-saving irrigation system and improving the economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic cross-sectional view of the structure of the present invention; Figure 3 It is an enlarged schematic diagram of the top view of the water distribution cylinder and the sealing cover of the present invention; Figure 4 It is an enlarged bottom view of the structure of the cover of the present invention; Figure 5 For the present invention Figure 3 Schematic diagram of the structural cross-section in the A-A direction; Figure 6 It is an enlarged schematic diagram of the structure of the elastic sealing body of the present invention from top view; Figure 7 It is an enlarged bottom view of the structure of the elastic sealing body of the present invention; Figure 8 For the present invention Figure 6 Schematic diagram of the structural cross-section in the B-B direction; Fig. 9 It is an enlarged schematic diagram of the structure of the water outlet support joint of the present invention; Fig.10 It is an enlarged schematic diagram of the structure of the water outlet support joint of the present invention from top view; Fig.11 For the present invention Fig.10 Schematic diagram of the structural cross-section in the C-C direction; Fig.12 It is an enlarged bottom view of the structure of the water outlet support joint of the present invention; Fig.13 It is a schematic top view of the structure of the water storage cylinder of the present invention; Fig.14 For the present invention Fig.13 Schematic diagram of the structural cross-section along the D-D direction; Fig.15 The figure is a schematic diagram of the assembly structure of a suspended micro-spray water-saving irrigation system in the prior art.

[0012] In the figure: 1. micro sprinkler joint; 2. water storage cylinder; 3. sealing cap; 4. water distribution cylinder; 41. outer flow channel; 42. inner ring platform; 43. water distribution chamber; 44. water inlet; 5. water pipe joint; 6. elastic sealing body; 61. positioning ring; 62. arc cap; 63. groove; 7. water outlet support joint; 71. inner flow channel; 72. support ring; 73. water collecting chamber; 74. bell mouth; 8. center pipe; 81. outer slope; 82. water outlet chamber; 9. hanging water pipe; 10. counterweight sleeve; 11. drip preventer; 12. micro sprinkler; 13. upper joint. DETAILED DESCRIPTION

[0013] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 Make the present invention.

[0014] The self-weight drooping drip preventer for suspended micro-sprinkler irrigation comprises a micro-sprinkler joint 1, a water storage cylinder 2, a sealing cover 3, a water pipe joint 5 and an elastic sealing body 6. The micro-sprinkler joint 1 is fixedly arranged in the middle of the bottom plate of the water storage cylinder 2, and the sealing cover 3 is fixedly arranged on the upper end of the water storage cylinder 2; the characteristics are: A water distribution cylinder 4 is fixedly provided at the middle through hole of the cover 3, and a water pipe joint 5 is fixedly provided at the upper end of the water distribution cylinder 4; an inner ring platform 42 is provided around the inner cavity top plate of the water distribution cylinder 4, and a water inlet 44 is fixedly provided in the middle of the inner cavity top plate of the water distribution cylinder 4, and the water inlet 44 is connected to the inner cavity of the water pipe joint 5, and the space between the inner ring platform 42 and the water inlet 44 is a water distribution cavity 43, and an outer flow channel 41 is provided on the inner side wall of the water distribution cylinder 4 and the inner ring platform 42, and the upper opening of the outer flow channel 41 is connected to the water distribution cavity 43; A central tube 8 is fixedly provided on the bottom plate of the water storage cylinder 2, and the inner cavity of the central tube 8 is a water outlet cavity 82, and the bottom of the water outlet cavity 82 is connected to the inner cavity of the micro-sprinkler joint 1; the cavity between the outer wall of the central tube 8 and the inner wall of the water storage cylinder 2 is connected to the lower opening of the outer flow channel 41; the upper end of the central tube 8 is fixedly provided with a water outlet support joint 7; The upper part of the water outlet support joint 7 is inserted into the cavity of the water distribution tube 4, and an inner flow channel 71 is provided on the side wall of the upper end of the water outlet support joint 7. The water collecting cavity 73 in the middle of the water outlet support joint 7 is connected with the cavity outside the water outlet support joint 7 through the inner flow channel 71, and the water collecting cavity 73 of the water outlet support joint 7 is connected with the water outlet cavity 82 of the central tube 8; An elastic sealing body 6 is provided between the upper end of the water outlet support joint 7 and the water inlet 44 in the water distribution tube 4 cavity. The bottom of the elastic sealing body 6 is sealed and fixedly arranged on the upper end edge of the water outlet support joint 7, and the upper end surface of the elastic sealing body 6 is adapted to the water inlet 44. When irrigation is needed, after the pressure water in the suspended water pipe enters the inner cavity of the water pipe joint 5, the upper end surface of the elastic sealing body 6 in sealing contact with the water inlet 44 is pushed open, and the water flows out from the gap between the water inlet 44 and the upper end surface of the elastic sealing body 6, enters the water distribution cavity 43, and then flows into the cavity between the outer wall of the central tube 8 and the inner wall of the water storage tube 2 through the outer flow channel 41, until the cavity between the outer wall of the central tube 8 and the inner wall of the water storage tube 2 is filled with water. , it reaches a certain weight, thereby achieving the purpose of sagging by its own weight; as the water level in the cavity between the outer wall of the central tube 8 and the inner wall of the water storage cylinder 2 rises, water enters the cavity between the upper end of the water outlet support joint 7 and the inner wall of the water distribution cylinder 4, and then enters the water collecting cavity 73 of the water outlet support joint 7 through the inner flow channel 71, and then flows into the water outlet cavity 82 of the central tube 8, and finally flows into the cavity of the micro sprinkler joint 1, thereby realizing water-saving irrigation of the micro sprinkler; when stopping irrigation, close the valve on the water delivery main pipe or the water delivery branch pipe, the water in the suspended water delivery pipe loses pressure, and the elastic sealing body 6 quickly seals the water inlet 44 under its own elastic action, so that no water will enter the micro sprinkler again, avoiding dripping.

[0015] The elastic sealing body 6 is made of silicone so that it has a certain elastic deformation ability. The elastic sealing body 6 is composed of a positioning ring 61 and an arc cap 62. The upper convex surface of the middle part of the arc cap 62 is sealed and adapted to the water inlet 44. The periphery of the arc cap 62 is fixed with a positioning ring 61. The positioning ring 61 is clamped and fixed between the inner ring platform 42 in the cavity of the water distribution tube 4 and the upper end surface of the water outlet support joint 7, so that a sealing plane is formed between the inner ring platform 42 in the cavity of the water distribution tube 4 and the upper end surface of the water outlet support joint 7, and the periphery of the elastic sealing body 6 is not deformed, and finally the arc cap 62 in the middle of the elastic sealing body 6 can maintain working stability.

[0016] A groove 63 is provided at the bottom of the elastic sealing body 6, and the groove 63 is located below the arc cap 62. A support ring 72 adapted to the inner wall of the groove 63 is provided on the inner side wall of the upper end surface of the water outlet support joint 7. The support ring 72 is inserted into the cavity of the groove 63, and the upper end of the support ring 72 is pressed against the bottom surface periphery of the arc cap 62 to further prevent the arc cap 62 from excessive deformation.

[0017] There are 2 to 4 outer flow channels 41 , which are evenly distributed on the inner wall of the water distribution cylinder 4 and the inner ring platform 42 .

[0018] There are 2 to 4 inner flow channels 71 , which are evenly distributed on the side wall of the upper port of the water outlet support joint 7 and the support ring 72 .

[0019] A bell mouth 74 is provided at the bottom of the water outlet support joint 7, and the upper end of the bell mouth 74 is connected to the water collecting chamber 73; an outer inclined surface 81 is provided on the side wall of the upper end of the central tube 8 and is sealed and fixed to the bell mouth 74, so as to facilitate the rapid installation of the water outlet support joint 7 to the upper end of the central tube 8.

[0020] As an improvement, the water outlet support joint 7 and the central pipe 8 are made as a whole; the sealing cover 3, the water distribution cylinder 4 and the water delivery pipe joint 5 are made as a whole.

[0021] The upper end of the water storage cylinder 2 and the peripheral edge of the cover 3 can be sealed and fixed by ultrasonic welding.

[0022] When using the present invention, the water pipe joint 5 at the upper end of the water distribution cylinder 4 is inserted into the lower end of the hanging water pipe 9, the micro-sprinkler joint 1 at the bottom of the water storage cylinder 2 is connected and fixed with the micro-sprinkler 12, and the upper joint 13 at the upper end of the hanging water pipe 9 is connected and fixed with the water branch pipe, and the on-site assembly can be completed.

[0023] When irrigation is needed, the water main pipe is opened, and water enters the hanging water pipe 9 from the water branch pipe. After the pressure water enters the inner cavity of the water pipe joint 5, the arc cap 62 of the elastic sealing body 6 in sealing contact at the water inlet 44 is pushed open, and the water flows out from the gap between the water inlet 44 and the arc cap 62, enters the water distribution cavity 43, and then flows into the cavity between the outer wall of the central tube 8 and the inner wall of the water storage cylinder 2 through the outer flow channel 41, until the cavity between the outer wall of the central tube 8 and the inner wall of the water storage cylinder 2 is filled with water and reaches a certain weight, thereby achieving the purpose of sagging by self-weight and preventing the micro sprinkler from rotating when spraying water. No shaking occurs, which ensures the effect of spray irrigation; as the water level in the cavity between the outer wall of the central tube 8 and the inner wall of the water storage cylinder 2 rises, due to the positioning ring 61 of the elastic sealing body 6, a sealing plane is formed between the inner ring platform 42 in the cavity of the water distribution cylinder 4 and the upper end surface of the water outlet support joint 7, water enters the cavity below the elastic sealing body 6, between the upper end of the water outlet support joint 7 and the inner wall of the water distribution cylinder 4, and then enters the water collecting cavity 73 of the water outlet support joint 7 through the inner flow channel 71, and finally flows from the water outlet cavity 82 of the central tube 8 into the cavity of the micro sprinkler joint 1, thereby realizing water-saving irrigation of the micro sprinkler.

[0024] When irrigation is stopped, the valve on the water pipe or the water branch pipe is closed, the water in the suspended water pipe loses pressure, and the arc cap 62 in the middle of the elastic sealing body 6 quickly seals the water inlet 44 under its own elastic action, so that no water will enter the micro sprinkler again, avoiding dripping.

Claims

1. A self-weight drooping drip preventer for suspended micro-sprinkler irrigation, comprising a micro-sprinkler joint (1), a water storage cylinder (2), a cover (3), a water pipe joint (5) and an elastic sealing body (6), wherein the micro-sprinkler joint (1) is fixedly arranged at the middle of the bottom plate of the water storage cylinder (2), and the cover (3) is fixedly arranged at the upper end of the water storage cylinder (2); the characteristics are: A water distribution cylinder (4) is fixedly provided at the middle through hole of the cover (3), and a water pipe joint (5) is fixedly provided at the upper end of the water distribution cylinder (4); an inner ring platform (42) is provided around the inner cavity top plate of the water distribution cylinder (4), and a water inlet (44) is fixedly provided in the middle of the inner cavity top plate of the water distribution cylinder (4), the water inlet (44) is connected to the inner cavity of the water pipe joint (5), and the space between the inner ring platform (42) and the water inlet (44) is a water distribution cavity (43); an outer flow channel (41) is provided on the inner side wall of the water distribution cylinder (4) and the inner ring platform (42), and the upper opening of the outer flow channel (41) is connected to the water distribution cavity (43); A central tube (8) is fixedly provided on the bottom plate in the cavity of the water storage cylinder (2); the inner cavity of the central tube (8) is a water outlet cavity (82); the bottom of the water outlet cavity (82) is connected to the inner cavity of the micro-sprinkler joint (1); the cavity between the outer wall of the central tube (8) and the inner wall of the water storage cylinder (2) is connected to the lower opening of the outer flow channel (41); a water outlet support joint (7) is fixedly provided on the upper end of the central tube (8); The upper portion of the water outlet support joint (7) is inserted into the cavity of the water distribution tube (4); an inner flow channel (71) is provided on the side wall of the upper end portion of the water outlet support joint (7); a water collecting cavity (73) in the middle portion of the water outlet support joint (7) is connected to the cavity outside the water outlet support joint (7) through the inner flow channel (71); and the water collecting cavity (73) of the water outlet support joint (7) is connected to the water outlet cavity (82) of the central tube (8); An elastic sealing body (6) is provided between the upper end of the water outlet support joint (7) and the water inlet (44) in the water distribution tube (4) cavity. The bottom of the elastic sealing body (6) is sealingly fixedly arranged on the upper end edge of the water outlet support joint (7). The upper end surface of the elastic sealing body (6) is matched with the water inlet (44).

2. The self-weight drooping drip preventer for suspended micro-sprinkler irrigation according to claim 1, characterized in that: The elastic sealing body (6) is composed of a positioning ring (61) and an arc-shaped cap (62). The upper convex surface of the middle part of the arc-shaped cap (62) is sealed and matched with the water inlet (44). The periphery of the arc-shaped cap (62) is fixedly provided with a positioning ring (61). The positioning ring (61) is clamped and fixed between the inner ring platform (42) in the cavity of the water distribution tube (4) and the upper end surface of the water outlet support joint (7).

3. A self-weight drooping drip preventer for suspended micro-sprinkler irrigation according to claim 2, characterized in that: The bottom of the elastic sealing body (6) is provided with a groove (63), the groove (63) being located below the arc-shaped cap (62), and the inner side wall of the upper end surface of the water outlet support joint (7) is provided with a support ring (72) adapted to the inner wall of the groove (63), the support ring (72) being inserted into the cavity of the groove (63), and the upper end of the support ring (72) is pressed against the periphery of the bottom surface of the arc-shaped cap (62).

4. The self-weight drooping drip preventer for suspended micro-sprinkler irrigation according to claim 1, characterized in that: The outer flow channels (41) are provided in 2 to 4 numbers and are evenly distributed on the inner wall of the water distribution cylinder (4) and the inner ring platform (42).

5. The self-weight drooping drip preventer for suspended micro-sprinkler irrigation according to claim 3, characterized in that: The inner flow channels (71) are provided in a number of 2 to 4 and are evenly distributed on the side wall of the upper port of the water outlet support joint (7) and the support ring (72).

6. The self-weight drooping drip preventer for suspended micro-sprinkler irrigation according to claim 1, characterized in that: The bottom of the water outlet support joint (7) is provided with a bell mouth (74), the upper end of which is in communication with the water collecting chamber (73); and the side wall of the upper end of the central tube (8) is provided with an outer inclined surface (81) which is sealed and fixedly connected to the bell mouth (74).

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