A rotary spraying device

Abstract

The application discloses a rotary spraying device, which is characterized by comprising walking wheels, a traction chassis, a water inlet pipe, a spraying central pipe, spraying side pipes and a traction pull rope; spraying water is arranged to enter the spraying central pipe from the water inlet pipe and then be sprayed out through the spraying side pipes connected to the two sides of the spraying central pipe; the two spraying side pipes are symmetrically arranged relative to the spraying central pipe, and the spraying directions of the nozzles on the two spraying side pipes are opposite; when spraying, the reaction force of water pressure makes the spraying side pipes and the spraying central pipe start to rotate; a cam arranged on the pipe body of the spraying central pipe rotates with the spraying central pipe, and drives a propelling frame to swing back and forth through cooperation with a contact wheel arranged on the propelling frame, so that a propelling pawl on the propelling frame drives a ratchet wheel to rotate; a winch rotates with the ratchet wheel, winds the traction pull rope, and thus the rotary spraying device is tractioned to walk forward; and the rotary spraying device further comprises a check pawl for preventing the winch from reversing.

Description

Technical Field

[0001] This invention relates to irrigation equipment, and more particularly to a rotary spraying device. Background Technology

[0002] Rotary sprinkler systems are widely used in agricultural irrigation, and existing towed rotary sprinkler systems can perform rotary spraying operations while being towed. Currently, traction is generally provided by electric wires or agricultural machinery. Therefore, those skilled in the art are dedicated to developing a self-towing rotary sprinkler system. Furthermore, in practical applications, it is desirable for the sprinkler system to automatically stop moving and spraying when it reaches a certain position under tow. Water remaining in the sprinkler pipes after spraying stops may cause corrosion; therefore, it is best to drain it as soon as possible. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides a rotary spraying device, including wheels, a traction chassis, a water inlet pipe, a central spraying pipe, side spraying pipes, and a traction rope. Spraying water is configured to enter the central spraying pipe through the water inlet pipe and then be sprayed out through the side spraying pipes connected to both sides of the central spraying pipe. The two side spraying pipes are symmetrically arranged relative to the main spraying pipe, while the spraying directions of their nozzles are opposite. During spraying, the reaction force of the water pressure causes the side spraying pipes and the central spraying pipe to rotate. A cam on the central spraying pipe rotates with the central spraying pipe and, through cooperation with a contact wheel on a pusher frame, drives the pusher frame to swing back and forth, causing a pusher pawl on the pusher frame to drive a ratchet to rotate. A winch rotates with the ratchet, winding the traction rope, thereby pulling the rotary spraying device forward. A backstop pawl is also included to prevent the winch from reversing.

[0004] Furthermore, the valve handle of the inlet pipe is pulled towards the closed position by a tension spring, but is restrained in the open position by the lever head of the stop lever, and the tail of the stop lever is connected to one end of the valve-closing rope; a stop block is provided on the traction rope; a trigger lever is provided on the front end of the traction chassis; the head of the trigger lever is a perforated plate, and the tail of the trigger lever is connected to the other end of the valve-closing rope; the traction rope passes through the hole in the perforated plate; during the winch winding and pulling process, the stop block on the traction rope continuously moves towards the traction... The front end of the chassis moves and eventually locks onto the perforated plate, further pushing the head of the trigger lever to rotate around the pivot. This causes the tail of the trigger lever to rotate in the opposite direction and pull the valve closing rope. Since one end of the valve closing rope is pulled by the trigger lever, the other end of the valve closing rope pulls the tail of the stop lever, causing the head of the stop lever to rotate around the pivot of the stop lever and disengage from the valve switch handle. As a result, the valve switch handle moves to the valve closed position under the tension of the tension spring, thereby shutting off the water inlet and stopping the spraying and movement of the rotating sprinkler device.

[0005] Furthermore, an automatic rotating nozzle is installed at the top of the central spray tube.

[0006] Furthermore, a baffle is provided outside the nozzle of the spraying side pipe nozzle, and the spacing can be adjusted by adjusting screws.

[0007] Furthermore, a pipe joint with an automatic drain valve is installed at the lower part of the spray center pipe. The pipe joint includes the automatic drain valve, which includes a valve body, a valve core, and a flap. The valve body includes an inlet and an outlet. The valve core is connected to the flap, which can switch the valve core between the open and closed positions, thus connecting or blocking the inlet and outlet. The position of the flap within the pipe joint is configured such that the flap is flipped upward under the force of the water flow in the pipe, so that the valve core is in the closed position. When the force of the water flow in the pipe disappears, the flap automatically flips downward under its own weight or the action of the return spring, so that the valve core is in the open position.

[0008] Furthermore, the automatic drain valve is inserted into the pipe fitting through a threaded hole on the side wall of the pipe fitting.

[0009] Furthermore, the valve body is also provided with a first limiting part for limiting the flip plate to flip in the open position; and a second limiting part for limiting the flip plate to flip in the closed position.

[0010] Furthermore, the valve core passes through the valve core seat hole of the valve body, and both ends of the valve core extend outside the valve core seat hole respectively; one end of the flap is provided with a fork, and both ends of the valve core are provided with fork fixing grooves respectively; the flap is connected to the valve core through the fork and the flap fixing groove.

[0011] Furthermore, the water inlet is correspondingly located on the side wall of the valve core seat hole.

[0012] Furthermore, the flap is a long strip.

[0013] The rotary spraying device provided by this invention can achieve self-traction and movement by the power provided by the spraying water pressure. It can also automatically move and spray when pulled to a position by setting a stop block at a distance set on the traction rope. In addition, a self-draining valve is set at the lower part of the spraying pipe, which can automatically drain the residual water in the spraying pipe when the spraying stops to prevent the spraying pipe from rusting.

[0014] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Attached Figure Description

[0015] Figure 1 This is a first-view perspective view of a rotary spraying device in a preferred embodiment of the present invention.

[0016] Figure 2 This is a preferred embodiment of the present invention. Figure 1 A magnified view of a section at point A in the middle;

[0017] Figure 3 yes Figure 1 A second-view perspective perspective view of the rotating spray device;

[0018] Figure 4 yes Figure 3 A close-up view of point B in the middle, showing that the inlet valve is open.

[0019] Figure 5 yes Figure 1 A third-person perspective view of the rotating spray device;

[0020] Figure 6 yes Figure 5 A magnified view of point C in the middle, showing the lever in its initial state before the valve rope is pulled;

[0021] Figure 7 yes Figure 5 A magnified view of point C in the middle, showing the lever in the pulled state before the valve rope is pulled;

[0022] Figure 8 yes Figure 3 A close-up view of point B in the middle, showing that the inlet valve is closed.

[0023] Figure 9 Figure 1 A schematic diagram of the central spray pipe of a rotating spray device with a pipe joint featuring an automatic drain valve.

[0024] Figure 10 yes Figure 9 A cross-sectional view of the central pipe joint, with the drain valve in the closed position.

[0025] Figure 11 yes Figure 9 A cross-sectional view of the central pipe joint, with the drain valve in the open position.

[0026] Figure 12 yes Figure 9 3D view of the central pipe joint;

[0027] Figure 13 yes Figure 12 A schematic diagram of the assembly relationship of the automatic drain valve of the central pipe joint;

[0028] Figure 14 yes Figure 1 A schematic diagram of the nozzle of the rotating side pipe of the rotating spraying device. Detailed Implementation

[0029] The following description, with reference to the accompanying drawings, illustrates several preferred embodiments of the present invention to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0030] The rotary spraying device 100 according to the present invention Figure 1 As shown, the system includes traveling wheels 103, a traction chassis 126, a water inlet pipe 105, a central spray pipe 104, side spray pipes 101, a traction rope 106, and a vertical roller 108. Spraying water enters the central spray pipe 104 through the water inlet pipe 105 and is then sprayed out through the side spray pipes 101 connected to both sides of the central spray pipe 104. The two side spray pipes 101 are symmetrically arranged relative to the main spray pipe 104, while the spraying directions of the nozzles 102 on them are opposite. During spraying, the reaction force of the water pressure causes the side spray pipes 101 and the central spray pipe 104 to rotate.

[0031] See also Figure 2 A cam 109, mounted on the body of the spray center pipe 104, rotates with the spray center pipe 104. This cam, via a contact wheel 111 mounted on the push frame 110, causes the push frame 110 to swing back and forth, resulting in the push pawl 113 on the push frame 110 driving the ratchet 112 to rotate. The winch 114 rotates with the ratchet 112, winding the traction rope 106, thereby pulling the rotating spray device 100 forward. A check pawl 115 prevents the winch 114 from reversing.

[0032] See Figure 3 and Figure 4 The valve switch handle 117 of the water inlet pipe 105 is pulled towards the valve closed position by the tension spring 118, but is restrained by the lever head 121 of the stop lever 120 at the valve open position in the figure. The lever tail 122 of the stop lever 120 is connected to one end of the valve closing pull rope 107.

[0033] See Figure 5-7 A stop block 124 is provided on the traction rope 106. A trigger lever 127 is provided on the front end 125 of the traction chassis 126. The head of the trigger lever 127 is a perforated plate 126, and the tail 131 of the trigger lever 127 is connected to the other end of the valve-closing rope 107. The traction rope 106 passes through the hole 129 of the perforated plate 126. During the process of the winch 114 winding the traction rope 106, the stop block 124 on the traction rope 106 moves continuously toward the front end 125 of the traction chassis 126 and eventually gets stuck on the perforated plate 126, further pushing the head of the trigger lever 127 to rotate around the pivot 130, so that the tail 131 of the trigger lever 127 rotates in the opposite direction and pulls the valve-closing rope 107.

[0034] See Figure 8 Since one end of the valve closing rope 107 is pulled by the trigger lever 127, the other end of the valve closing rope 107 pulls the lever tail 122 of the stop lever 120, causing the lever head 121 of the stop lever 120 to rotate around the pivot 123 of the stop lever 120 and disengage from the valve switch handle 117. Then, the valve switch handle 117 moves to the valve closed position under the pulling force of the tension spring 118 and is limited by the limit pin 119, thereby closing the water inlet and stopping the spraying and movement of the rotating spraying device 100.

[0035] like Figure 9 As shown, a pipe connector 1 with an automatic drain valve is also provided at the lower part of the spray center pipe 104. As can be seen in the figure, a drain outlet 2 is provided on the pipe wall of the pipe connector 1. After spraying stops, the water stored in the spray center pipe 104 and the spray side pipe 101 can be drained from the drain outlet 2.

[0036] Figure 10 , 11 yes Figure 9 A cross-sectional view of the pipe joint. As can be seen in the figure, the valve body 3 of the automatic drain valve, which has a drain outlet 2, is threaded 4 onto a threaded through hole 12 on the pipe wall of the pipe joint 1, extending into the flow channel 12 within the pipe joint 1. The valve body 3 includes an inlet 9 communicating with the flow channel 12. A valve core 6 within the valve body 3 is connected to a flap 5. The flap 5 can switch between a closed position and an open position. When the flap 5 is in the closed position... Figure 2 When the valve is in the closed position as shown, the flap 5 tilts upward within the flow channel 12 of the pipe connector 1, causing the valve core 6 to be in the closed position, blocking the inlet 9 and outlet 2. When the flap 5 is in the closed position as shown... Figure 3 When in the open position, the flap 5 tilts downward within the flow channel 12 of the pipe connector 1, causing the valve core 6 to be in the closed position, thus connecting the inlet 9 and the outlet 2. The valve body 3 is also provided with a first limiting part 7 for limiting the flap 5 in the open position; and a second limiting part 8 for limiting the flap 5 in the closed position.

[0037] Figure 12 , 13 This is a three-dimensional schematic diagram and assembly diagram of the automatic drain valve. As shown in the figure, the valve core 6 passes through the valve core seat hole 14 of the valve body 3, and both ends extend beyond the valve core seat hole 14. The water inlet 9 is correspondingly located on the side wall of the valve core seat hole 14. One end of the flap 5 is provided with a fork 13, and fork fixing grooves 10 are provided at both ends of the valve core 6. The flap 5 is connected to the valve core 6 through the fork 13 and the fork fixing grooves 10. The fork 13 also serves to fix the valve core 6 to the valve body 3. The fork 13 and the fork fixing grooves 10 can be connected by bolts or other fasteners, and also use an interference fit.

[0038] During spraying, the water flow through the central spray pipe 104 pushes the flapper 5, causing the valve core 6 to be in the closed position. When spraying stops, the flapper 5 automatically falls back under gravity, flipping downwards to the open position. The valve core 6 then connects the inlet 9 and the outlet 2, allowing the water stored in the central spray pipe 104 to be automatically discharged through the outlet 2. In the above embodiment, the flapper 5 is configured to fall automatically by gravity. In other embodiments, a return spring connected to the flapper can also be used to make it fall automatically after the water flow impact force disappears.

[0039] like Figure 3 As shown, the present invention also provides an automatic rotating nozzle 116 at the top of the spraying center pipe 104.

[0040] like Figure 14 As shown, a baffle 133 with adjustable spacing is provided outside the nozzle 132 of the spray head 102 of the spray side pipe 101.

[0041] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A rotary spraying device, characterized in that, The system includes wheels, a towing chassis, a water inlet pipe, a central spray pipe, side spray pipes, and a traction rope. Water is introduced into the central spray pipe through the inlet pipe and then sprayed out through the side spray pipes connected to both sides of the central spray pipe. The two side spray pipes are symmetrically positioned relative to the main spray pipe, with their nozzles spraying in opposite directions. During spraying, the reaction force of the water pressure causes the side spray pipes and the central spray pipe to rotate. A cam on the central spray pipe rotates with it and, through its interaction with a contact wheel on the push frame, drives the push frame to swing back and forth, causing the push pawl on the push frame to intermittently push the ratchet to rotate. The winch rotates with the ratchet, winding the traction rope, thereby pulling the rotating spraying device forward. The system includes a walking mechanism; it also includes a check pawl to prevent the winch from reversing. The valve handle of the inlet pipe is pulled towards the closed position by a tension spring, but is restrained in the open position by the lever head of a stop lever. The tail of the stop lever is connected to one end of the valve-closing rope. A stop block is provided on the traction rope. A trigger lever is provided at the front end of the traction chassis. The head of the trigger lever has a perforated plate, and the tail of the trigger lever is connected to the other end of the valve-closing rope. The traction rope passes through the hole in the perforated plate. During the winch's winding and pulling process, the stop block on the traction rope continuously moves towards the front end of the traction chassis and eventually locks onto the perforated plate, further pushing the head of the trigger lever to rotate around its pivot, causing the tail of the trigger lever to... Simultaneously, the unit rotates in the opposite direction and pulls the valve-closing rope; since one end of the valve-closing rope is pulled by the trigger lever, the other end of the valve-closing rope pulls the tail of the stop lever, causing the head of the stop lever to rotate around the pivot of the stop lever and disengage from the valve switch handle. Then, under the tension of the tension spring, the valve switch handle moves to the valve-closed position, thereby closing the water inlet and stopping the spraying and movement of the rotating spraying device. A pipe joint with an automatic drain valve is also installed at the lower part of the spraying center pipe; the pipe joint includes the automatic drain valve; the automatic drain valve includes a valve body, a valve core, and a flap; the valve body includes an inlet and a outlet; the valve core is connected to the flap, and the flap can drive the valve core to switch between the open and closed positions, allowing the inlet and outlet to communicate or block each other. The flapper is positioned within the pipe joint as follows: under the force of the water flow in the pipe, the flapper flips upward, placing the valve core in the closed position; when the force of the water flow disappears, the flapper automatically flips downward under its own weight or the action of the return spring, placing the valve core in the open position. The automatic drain valve is inserted into the pipe joint through a threaded hole on the side wall of the pipe joint. The valve body is also provided with a first limiting part for limiting the flapper's flipping in the open position and a second limiting part for limiting the flapper's flipping in the closed position. The valve core passes through the valve core seat hole in the valve body, and both ends of the valve core extend beyond the valve core seat hole. A fork is provided at one end of the flapper, and fork fixing grooves are provided at both ends of the valve core. The flapper is connected to the valve core through the fork and the fork fixing grooves.

2. The rotary spraying device as described in claim 1, wherein, An automatic rotating nozzle is also installed at the top of the central spray tube.

3. The rotary spraying device as described in claim 1, wherein, A baffle is installed outside the nozzle of the spray nozzle on the spray side pipe, and the spacing can be adjusted by adjusting the screw.

4. The rotary spraying device as described in claim 1, wherein, The water inlet is correspondingly located on the side wall of the valve core seat hole.

5. The rotary spraying device as described in claim 1, wherein, The flap is a long strip.

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