Coaxial water dispersing device and spray gun

Abstract

The water dispersing device comprises at least two auxiliary water spraying pipes and a rotatable water dispersing wheel arranged in front of water outlets of the auxiliary water spraying pipes, and the water dispersing wheel comprises at least two layers of rotatable cover plates arranged up and down and blades arranged in the circumferential direction of each layer of cover plate. The blades are fixedly connected with the corresponding cover plates respectively, the cover plates are fixedly connected, the auxiliary water spraying pipes face the corresponding layers of blades respectively, and the auxiliary water spraying pipes are connected with a pressure water source. When the water flow sprayed by the auxiliary water spraying pipe impacts the water dispersing wheel, the water dispersing wheel is driven to rotate, and meanwhile, the water flow is dispersed and falls around the water dispersing wheel under the action of centrifugal force, so that the covering area of the water flow on the soil is larger, and the soil is irrigated more uniformly.

Description

Technical Field

[0001] The utility model relates to the technical field of sprinkler irrigation facilities, in particular to a coaxial water scattering device and a spray gun adopting the water scattering device. Background Art

[0002] Sprinkler irrigation is a commonly used agricultural irrigation method at present. Water flow is sprayed in a certain direction through a spray gun, so as to irrigate crops or other plants. Since the water flow sprayed by the nozzle of the spray gun is a single stream and its dispersion range is very small, only local irrigation can be formed on the soil, resulting in a small irrigation area of the soil. At the same time, the irrigation is also very uneven, easily causing excessive local irrigation while insufficient irrigation in the surrounding area. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a coaxial water scattering device and a spray gun adopting the water scattering device, which are used to solve the problems of small irrigation area and uneven irrigation during the current spray gun irrigation.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is as follows:

[0005] A coaxial water scattering device includes at least two secondary spray water pipes and a rotatable water scattering wheel arranged before the water outlets of the secondary spray water pipes. The water scattering wheel includes at least two layers of rotatable cover plates arranged coaxially and blades arranged along the circumferential direction of each layer of cover plates. The blades are respectively fixedly connected to the corresponding cover plates, the cover plates are fixedly connected to each other, the secondary spray water pipes are respectively oriented towards a corresponding layer of blades, and the secondary spray water pipes are connected to a pressure water source.

[0006] Further, the water scattering wheel further includes a vertical hub. The centers of the cover plates are fixedly connected to the hub. A support member is arranged below the hub. The top of the support member is a bearing seat. The hub is rotationally connected to the support member through the bearing seat. The bottom of the hub is a blind hole opening downward. The blind hole is sleeved outside the bearing seat, and the bearing seat and the hub are in clearance fit.

[0007] Further, a valve is arranged on the secondary spray water pipe, and a sheath is fixedly sleeved outside the secondary spray water pipe.

[0008] Further, the secondary spray water pipe is fixedly connected to a water chamber. The water chamber is connected to a pressure water source, and a water distributor is arranged on the water chamber.

[0009] Further, a pressure gauge is also connected to the water chamber.

[0010] Further, both the cover plates and the blades are provided with two layers. There are two secondary spray water pipes. The blades are respectively fixedly connected to the lower surfaces of the corresponding cover plates. The outlets of the two secondary spray water pipes are respectively oriented towards a corresponding layer of blades, and the numbers of the two layers of blades are different.

[0011] Further, the water separator includes a first regulating valve and a water outlet pipe disposed on the water outlet of the first regulating valve. The first regulating valve is connected to the water chamber. One end of the water outlet pipe is connected to the first regulating valve, and the other end is fixedly connected to a support arm. A water distribution rod is connected to the support arm. The end of the water outlet pipe away from the first regulating valve is a water spray opening, and one end of the water distribution rod blocks outside the water spray opening. The support arm is L-shaped and fixedly connected to the outer wall of the water outlet pipe. The water distribution rod is threadedly connected through the support arm. One end of the water distribution rod close to the water spray opening is conical, and a end cap is provided at the other end of the water distribution rod. A spring is sleeved on the water distribution rod, and the spring is disposed between the end cap and the support arm.

[0012] A spray gun using the coaxial water spraying device described above further includes a rotary spray gun. The secondary spray pipe is communicated with the main spray pipe of the rotary spray gun, and the cover plate is rotatably connected to the main spray pipe.

[0013] Further, screws are threadedly connected through both sides of the lower part of the suspension bracket of the rotary spray gun, and a second regulating valve is provided on the steering spray pipe of the rotary spray gun.

[0014] The positive effects of the present utility model are as follows:

[0015] 1. The water spraying device is provided with two secondary spray pipes and two water spraying wheels arranged up and down. When the water flows ejected from the two secondary spray pipes impact the water spraying wheels, the water spraying wheels are driven to rotate. At the same time, under the action of centrifugal force, the water flow is dispersed and falls around the water spraying wheels, so that the area covered by the water flow on the soil is larger and the soil is irrigated more evenly. By adjusting the opening degree of the valve on the floating spray pipe, the flow rate and pressure of the water flow ejected from the secondary spray pipe are adjusted, thereby changing the rotation speed of the water spraying wheels, and the amount of dispersed water and the dispersion range can be adjusted.

[0016] 2. The center of the water spraying wheel is a hub, and a bearing seat is rotatably connected below the hub. The blind hole at the bottom of the hub is sleeved outside the bearing seat. When the water spraying wheel rotates, part of the water flow will splash onto the hub. Since the bearing seat is located in the blind hole at the bottom of the hub, the water on the hub will not enter the inside of the bearing seat from the top when flowing downward, thereby preventing the bearing in the bearing seat from being damaged or its service life from being reduced due to water ingress.

[0017] 3. The water spraying device further includes a water separator. The water separator includes a water outlet pipe and a water distribution rod. After the water flow ejects from the water spray opening of the water outlet pipe, it vertically sprays onto the water distribution rod. After the water flow impacts the water distribution rod, it is dispersed, thereby expanding the sprinkler irrigation area, enabling more soil to be irrigated, and making the irrigation of the soil more uniform.

[0018] 4. When the water-dispersing device is installed on the rotating spray gun, during the rotating sprinkler irrigation of the rotating spray gun, the water flow ejected from the main spray water pipe of the rotating spray gun, the water flow dispersed by the water-dispersing wheel, and the water flow dispersed by the water distributor form three concentric circles nested in sequence on the soil, so that the irrigation area is larger and the irrigation is more uniform. Description of the Drawings

[0019] Figure 1 is a schematic external view of Embodiments 1 and 2;

[0020] Figure 2 is a top view of Embodiments 1 and 2;

[0021] Figure 3 is a schematic connection diagram of the water-dispersing wheel and the bearing seat in Embodiment 2

[0022] Figure 4 is a schematic external view of Embodiment 3;

[0023] Figure 5 is a top view of the water ejected by the present utility model on the soil in Embodiment 3;

[0024] Figure 6 is a schematic external view of one form of the water distributor;

[0025] Figure 7 is a schematic external view of another form of the water distributor;

[0026] Figure 8 is a schematic external view of Embodiment 4;

[0027] Figure 9 is Figure 8 a cross-sectional view of the suspension bracket in

[0028] In the figure:

[0029] 1. Water-dispersing wheel; 2. Valve; 3. Sheath; 4. Water distributor; 401. Water-distributing rod; 402. Support arm; 403. Spring; 404. End cap; 405. Outlet pipe; 406. Knob; 407. Adjusting valve 1; 408. Inlet pipe; 409. Spraying port; 5. Pressure gauge; 6. Water chamber; 7. Main spray water pipe; 8. Auxiliary spray water pipe; 9. Cover plate; 10. Blade; 11. Hub; 12. Bearing; 13. Bearing seat; 14. Rotating shaft; 15. Support member; 16. Suspension bracket; 17. Steering spray pipe; 18. Steering wheel; 19. Transmission box; 20. Adjusting valve 2; 21. Screw. Detailed Embodiments

[0030] Embodiment 1

[0031] As Figures 1 to 3As shown in the figure, a coaxial water sprinkling device includes two sub-spray pipes 8 arranged vertically one above the other and a rotatable water sprinkling wheel 1 disposed in front of the water outlets of the two sub-spray pipes 8. The water sprinkling wheel 1 includes two rotatable circular cover plates 9 arranged coaxially up and down and blades 10 arranged along the circumferential direction of each cover plate 9. Both cover plates 9 are fixedly connected to the upper-layer blades 10, and the lower-layer blades 10 are fixedly connected to the lower cover plate 9. The cover plates 9 are fixedly connected through a hub 11 disposed at the center of the cover plates 9. The two sub-spray pipes 8 are respectively directed towards a corresponding layer of blades 10, and both sub-spray pipes 8 are connected to a pressure water source.

[0032] The hub 11 is vertically arranged, and the centers of both cover plates 9 are perpendicularly and fixedly connected to the hub 11. A support member 15 is provided below the hub 11. The top of the support member 15 is a circular bearing seat 13. The hub 11 is rotatably connected to the support member 15 through the bearing seat 13. The bottom of the hub 11 is a blind hole opening downward, and the blind hole is sleeved outside the bearing seat 13. The bearing seat 13 is in clearance fit with the hub 11.

[0033] A valve 2 is provided at one end of the sub-spray pipe 8 close to the water sprinkling wheel 1 for adjusting the water volume and water pressure sprayed towards the water sprinkling wheel 1. A protective sleeve 3 is fixedly sleeved outside the sub-spray pipe 8 for protecting the sub-spray pipe 8 to prevent the sub-spray pipe 8 from being bent accidentally. One end of the sub-spray pipe 8 far from the water sprinkling wheel 1 is fixedly connected to a water chamber 6, and the water chamber 6 is connected to a pressure water source.

[0034] When the water flows sprayed from the two sub-spray pipes 8 impact the water sprinkling wheel 1, the water sprinkling wheel 1 is driven to rotate. Under the action of centrifugal force, the water flow is dispersed and falls around the water sprinkling wheel 1, so that the area covered by the water flow is larger and the soil irrigation is more uniform. By adjusting the opening degree of the valve 2, the dispersed water volume and the dispersion range can be adjusted.

[0035] The number of the two layers of blades 10 is different, with five blades in the upper layer and ten blades in the lower layer, so that the dispersion effects of the two layers of blades 10 on the water flow are different, and thus the area covered by the dispersed water flow is larger.

[0036] A bearing is installed in the bearing seat 13. A rotating shaft 14 is fixedly connected to the hub 11 through a set screw, and the rotating shaft 14 is inserted into the center of the bearing. When the water sprinkling wheel 1 rotates, part of the water flow will splash onto the hub 11. Since the bearing seat 13 is located in the blind hole at the bottom of the hub 11, the water on the hub 11 will not enter the inside of the bearing seat 13 from the top of the bearing seat 13 when flowing downward, thus preventing the bearing 12 from being damaged or having its service life reduced due to water ingress.

[0037] The upper cover plate 9 is isolated from the hole in the hub 11 for installing the rotating shaft 14, so that the water on the upper cover plate 9 will not flow downward through the rotating shaft 14 into the bearing seat 13.

[0038] Example 2

[0039] The difference between this example and Example 1 is as follows:

[0040] On the basis of Example 1, further improvements are made. A water distributor 4 is provided on the water chamber 6, and a pressure gauge 5 is also connected to the water chamber 6.

[0041] As Figure 6 shown, the water distributor 4 includes a regulating valve 407 and a water outlet pipe 405 provided at the water outlet of the regulating valve 407. The water flow direction in the regulating valve 407 is vertical from bottom to top. The inlet pipe 408 of the regulating valve 407 is located below, and the water outlet is located above. The lower part of the water outlet pipe 405 is vertical, and the upper part is inclined from upper left to lower right. The lower end of the water outlet pipe 405 is fixedly connected to the regulating valve 407. The top of the outer wall at the upper left end of the water outlet pipe 405 is fixedly connected with a support arm 402. A water distribution rod 401 is connected to the support arm 402. The upper left end of the water outlet pipe 405 is a water spray port 409. One end of the water distribution rod 401 blocks outside the water spray port 409. The inlet pipe 408 has threads, and the inlet pipe 408 is screwed onto the top of the water chamber 6 through the threads.

[0042] The support arm 402 is an L-shaped one arranged from upper left to lower right. The right lower end of the support arm 402 is fixedly connected to the outer wall of the water outlet pipe 405. The upper left part of the support arm 402 extends out of the water outlet pipe 405. The upper left part of the support arm 402 is parallel to the axis of the upper left part of the water outlet pipe 405. The water distribution rod 401 is arranged from lower left to upper right. The middle part of the water distribution rod 401 is vertically and threadedly connected to the support arm 402, so that the axis of the water distribution rod 401 is perpendicular to the axis of the upper left part of the water outlet pipe 405.

[0043] The lower left end of the water distribution rod 401 is conical. A cylindrical end cap 404 is fixedly provided at the upper right end of the water distribution rod 401. Knurling is provided on the outer circle of the end cap 404. A spring 403 is sleeved on the water distribution rod 401. The spring 403 is arranged between the end cap 404 and the support arm 402. The two ends of the spring 403 respectively abut against the end cap 404 and the support arm 402.

[0044] The included angle between the axis of the upper left part of the water outlet pipe 405 and the axis of the inlet pipe 408 is α, and α = 40°, so that the water sprayed from the water outlet pipe 405 can be ejected farther. The water flow sprayed from the water spray port 409 of the water outlet pipe 405 vertically sprays onto the water distribution rod 401. After the water flow impacts the water distribution rod 401, the water flow is dispersed, thereby expanding the sprinkler irrigation area, enabling more soil to be irrigated, and making the irrigation of the soil more uniform.

[0045] Under the action of the spring 403, the external thread in the middle of the water dividing rod 401 abuts against and self-locks with the corresponding internal thread on the support arm 402, thereby preventing the water dividing rod 401 from vibrating due to the impact of the water flow ejected from the water outlet pipe 5 during the water spraying process, and further preventing the position of the water dividing rod 401 from moving axially along its axis, which affects the water dividing effect of the water dividing rod or causes the water dividing effect to be unstable. By turning the end cap 404, the position of the water dividing rod 401 can be adjusted, thereby adjusting the water dispersion effect.

[0046] The first regulating valve 407 is a straight-through ball valve. In actual production, the first regulating valve 407 and the water outlet pipe 405 can be made into one body, thereby reducing production costs and being more convenient for mass production.

[0047] The left end face of the water outlet pipe 405 is vertical, that is, the left end face of the water outlet pipe 405 is parallel to the axis of the water inlet pipe 408 of the first regulating valve 407. Therefore, there is more space on the left side of the water outlet pipe 405, which can prevent the water outlet pipe 405 from blocking the dispersed water flow and affecting the sprinkler irrigation effect.

[0048] By turning the knob 406 of the first regulating valve 407, the flow rate and pressure of the water flow ejected from the water outlet pipe 405 can be adjusted, thereby adjusting the sprinkler irrigation range, so that the soil near and far can be irrigated, and the sprinkler irrigation becomes more uniform.

[0049] As Figure 7 shown, the first regulating valve 407 is a right-angle stop valve, that is, the water inlet pipe 408 and the water outlet of the first regulating valve 407 are at 90°. The water outlet pipe 405 is fixedly connected to the water outlet on the left side of the valve 401. Since the knob 406 of the first regulating valve 407 is at its top, when turning the knob 406, there is more operating space for the hand, making the operation more convenient.

[0050] The water outlet pipe 405 is threadedly connected to the first regulating valve 407. During production, the water outlet pipe 405, the support arm 402, the water dividing rod 401, the end cap 404 and the spring 403 are assembled into a whole, and the corresponding type of the first regulating valve 407 is configured according to needs.

[0051] Embodiment 3

[0052] As Figure 4 shown, a spray gun uses the water scattering device in Embodiment 2, and further includes a rotary spray gun. The secondary spray water pipe 8 is communicated with the main spray water pipe 7 of the spray gun, and the main spray water pipe 7 is connected to a pressure water source. The lower part of the support member 15 is annular, and the lower part of the support member 15 is sleeved outside the spray water pipe 7 and fixedly connected to the spray water pipe 7 by screws.

[0053] When the rotary spray gun rotates, it drives the water scattering wheel 1 and the water divider 4 to move and rotate.

[0054] As Figure 5 shown, the center of each concentric circle is the rotation center of the rotary spray gun. The three concentric rings are, from outside to inside, A, B, and C. Ring A is formed by the water flow ejected from the main water spray pipe 7 on the soil, ring B is formed by the water scattering wheel 1 on the soil, and ring C is formed by the water ejected from the water distributor 4 on the soil. Therefore, when the rotary spray gun rotates, the irrigated area is larger and the water coverage during irrigation is more uniform.

[0055] Embodiment 4

[0056] As Figure 8 and Figure 9 shown, the water flow ejected from the steering nozzle 17 at the lower part of the rotary spray gun hits the steering wheel 18 of the rotary spray gun. The steering wheel 18 rotates under the impact of the water flow and drives the rotary spray gun to rotate through the transmission box 19. The steering nozzle 17 swings back and forth within the suspension bracket 16 of the rotary spray gun, thus reciprocally impacting the blades on both the front and rear sides of the steering wheel 18, so that the steering wheel 18 repeats forward rotation and reverse rotation, and further drives the rotary spray gun to rotate reciprocally.

[0057] The difference between this embodiment and Embodiment 3 is that:

[0058] Both sides of the lower part of the suspension bracket 16 of the rotary spray gun are threadedly connected through bolts 21, and the bolts are wing nuts. By adjusting the position of the bolts 21, the swinging range and swinging period of the steering nozzle 17 can be limited, thereby controlling the swinging period of the rotary spray gun.

[0059] An adjusting valve II 20 is provided on the steering nozzle 17 of the rotary spray gun. By adjusting the opening degree of the adjusting valve II 20, the water flow rate and pressure ejected from the steering nozzle 17 can be adjusted, thereby adjusting the swinging speed of the steering nozzle 17, and further adjusting the rotation speed and swinging period of the rotary spray gun.

[0060] The above-described embodiments are described in more detail and specifically, expressing the preferred embodiments of the present invention. They are only used to illustrate the technical ideas and features of the present invention. The purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, it is not limited to the present invention only. The patent scope of the present invention cannot be limited only by this embodiment. That is, any equivalent changes or modifications made in accordance with the spirit disclosed by the present invention, for those researchers or technicians in the field, within the structure of the present invention, local improvements within the system and changes and transformations between subsystems are still within the patent scope of the present invention.

Claims

1. A coaxial water scattering device, characterized in that, It includes at least two auxiliary spray pipes (8) and a rotatable water-dispersing wheel (1) arranged before the water outlet of the auxiliary spray pipes (8). The water-dispersing wheel (1) includes at least two layers of rotatable cover plates (9) arranged coaxially and blades (10) arranged along the circumferential direction of each layer of cover plate (9). The blades (10) are fixedly connected to the corresponding cover plates (9) respectively, and the cover plates (9) are fixedly connected to each other. The auxiliary spray pipes (8) are respectively oriented towards a corresponding layer of blades (10), and the auxiliary spray pipes (8) are connected to a pressure water source.

2. The coaxial water-dispersing device according to claim 1, wherein The water-dispersing wheel (1) further includes a vertical hub (11). The centers of the cover plates (9) are fixedly connected to the hub (11). A support member (15) is provided below the hub (11). The top of the support member (15) is a bearing seat (13). The hub (11) is rotatably connected to the support member (15) through the bearing seat (13). The bottom of the hub (11) is a blind hole opening downward, and the blind hole sleeves outside the bearing seat (13). The bearing seat (13) and the hub (11) are in clearance fit.

3. The coaxial water spraying device according to claim 1, characterized in that, A valve (2) is provided on the auxiliary spray pipe (8), and a sheath (3) is fixedly sleeved outside the auxiliary spray pipe (8).

4. A coaxial water-dispersing device according to claim 1, characterized in that, The auxiliary spray pipe (8) is fixedly connected to a water chamber (6). The water chamber (6) is connected to a pressure water source, and a water distributor (4) is provided on the water chamber (6).

5. The coaxial water spraying device according to claim 4, characterized in that, A pressure gauge (5) is also connected to the water chamber (6).

6. The coaxial water spraying device according to claim 1, characterized in that, Both the cover plates (9) and the blades (10) are provided with two layers. There are two auxiliary spray pipes (8). The blades (10) are respectively fixedly connected to the lower surfaces of the corresponding cover plates (9). The outlets of the two auxiliary spray pipes (8) are respectively oriented towards a corresponding layer of blades (10), and the numbers of the two layers of blades (10) are different.

7. The coaxial water spraying device according to claim 4, characterized in that, The water distributor (4) includes an adjusting valve I (407) and a water outlet pipe (405) arranged on the water outlet of the adjusting valve I (407). The adjusting valve I (407) is connected to the water chamber (6). One end of the water outlet pipe (405) is connected to the adjusting valve I (407), and the other end is fixedly connected to a support arm (402). A water-distributing rod (401) is connected to the support arm (402). The end of the water outlet pipe (405) far from the adjusting valve I (407) is a water spray port (409). One end of the water-distributing rod (401) blocks outside the water spray port (409). The support arm (402) is L-shaped and is fixedly connected to the outer wall of the water outlet pipe (405). The water-distributing rod (401) is threadedly connected to the support arm (402) through penetration. One end of the water-distributing rod (401) close to the water spray port (409) is conical, and a end cap (404) is provided at the other end of the water-distributing rod (401). A spring (403) is sleeved on the water-distributing rod (401), and the spring (403) is arranged between the end cap (404) and the support arm (402).

8. A spray gun using the coaxial water spraying device according to any one of claims 1 to 7, characterized in that, It further includes a rotary spray gun. The auxiliary spray pipe (8) is communicated with the main spray pipe (7) of the rotary spray gun, and the cover plate (9) is rotatably connected to the main spray pipe (7).

9. The spray gun according to claim 8, wherein, Screws (21) are threadedly connected through both lower sides of the suspension bracket (16) of the rotary spray gun, and a second regulating valve (20) is provided on the deflecting nozzle (17) of the rotary spray gun.

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