Rocker arm spray gun device for greening irrigation

Abstract

A rocker arm and spray gun device for greening irrigation comprises a connecting seat and a spray gun on the upper side of the connecting seat, and a rocker arm and a reversing mechanism are further arranged on the spray gun. The reversing mechanism comprises a sealing shell and a limiting part vertically arranged on the upper side of the sealing shell in a telescopic mode. The reversing mechanism further comprises fan blades arranged in the spray gun and a transmission rod with the two ends extending into the spray gun and the sealing shell correspondingly, the fan blades are further connected with a driving rod, one end of the transmission rod is in transmission connection with the driving rod, and a cam transmission block is arranged at the other end of the transmission rod and can periodically jack the limiting part upwards. The jacking work of the limiting part is achieved through the rotating cam transmission block, the rotating driving force of the cam transmission block is driven by the fan blades, and even if the water pressure is small or the rocker arm spray gun device is stopped for a period of time, the fan blades can still be easily driven to rotate through the action of water flow; therefore, the rocker arm is limited by the limiting part, and finally, the sprinkling irrigation work can be smoothly finished.

Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, specifically a rocker arm spray gun device for greening irrigation. Background Technology

[0002] A rocker arm sprayer is a commonly used sprinkler system for outdoor areas. It typically consists of a sprayer and a rocker arm. When the sprayer is spraying water, the rocker arm helps it rotate continuously, thus expanding the spraying range. It is also equipped with a reversing mechanism, which can fix the rocker arm after the sprayer has rotated to a preset angle, allowing the sprayer to rotate back to its initial position.

[0003] For example, patent application CN202222099132.7 in the patent database discloses an adjustable swing angle rocker arm spray gun. Its reversing mechanism includes an upper adjusting ring, an adjusting block, and an adjusting plate. When the gun body rotates a certain angle, the adjusting ring can actuate the adjusting plate, thereby lifting one end of the adjusting block and locking the rocker arm. This is similar in principle and structure to existing rocker arm spray gun reversing mechanisms. It uses the rotation of the gun body to engage the adjusting plate and adjusting ring, completing the actuation of the adjusting plate. Specifically, the gun body drives the adjusting plate to the adjusting ring position. When the gun body continues to rotate under the action of the rocker arm, the adjusting plate swings due to the stop at its lower end under the action of the adjusting ring. This pushes the adjusting block to actuate the rocker arm. The limit switch allows the gun body to rotate smoothly. However, in this method, the rotation of the gun body is entirely achieved through the water-blocking action of the rocker arm. When the water pressure is low, the gun body will be subjected to a small reaction force from the rocker arm. Under this force, the gun body can barely maintain its own rotation. When the gun body drives the adjusting plate to the adjusting ring position, due to the stopping action of the adjusting ring, it is difficult for the gun body to continue rotating under the action of the rocker arm. At this time, only the rocker arm is swinging back and forth. This situation is especially true when the rocker arm spray gun is restarted after being out of use for a period of time. Due to the corrosion at the hinge of the adjusting block and the adjusting plate, it is even more difficult for the gun body to continue rotating with the reverse pushing force of the rocker arm. The rotation of the nozzle may even stop, affecting the irrigation effect. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model provides a greening irrigation rocker arm spray gun device.

[0005] The technical solution of this utility model is as follows:

[0006] The rocker arm spray gun device includes a connecting base and a spray gun on its upper side. The spray gun is also equipped with a rocker arm and a reversing mechanism. The spray gun can realize sprinkler irrigation. Under the reverse pushing action of the rocker arm, the spray gun can rotate intermittently in one direction. At the same time, under the action of the reversing mechanism, when the spray gun rotates to a certain angle, it can limit the rocker arm and make the spray gun rotate in the opposite direction under the action of the rocker arm. When the spray gun rotates in the opposite direction to a certain angle, the rocker arm loses the limit of the reversing mechanism and will continue to push the spray gun to rotate intermittently by turning, finally completing the irrigation operation.

[0007] As the core technical concept of this utility model, the reversing mechanism includes a sealing shell and a limiting part that extends vertically and retracts on the upper side of the sealing shell; the reversing mechanism also includes a fan blade disposed inside the spray gun, and a transmission rod with both ends extending into the spray gun and the sealing shell respectively. The fan blade is also connected to a drive rod. One end of the transmission rod is connected to the drive rod, and the other end is provided with a cam transmission block. The cam transmission block is configured to periodically lift the limiting part upward and complete the locking and limiting work of the rocker arm. Based on the above structure, the rocker arm can drive the spray gun to rotate under the action of water flow. At this time, the fan blade also rotates under the impact of water flow, and then drives the transmission rod to rotate through the drive rod. When the transmission rod rotates to the point where the cam transmission block lifts the limiting part, the rocker arm is limited by the limiting part. The function of this device is to drive the spray gun to rotate in the opposite direction until the cam drive block continues to rotate with the drive rod and disengages from the limiting part. At this time, the rocker arm continues to drive the spray gun to rotate under the action of the water flow. Unlike the existing method of limiting the rocker arm through a swing structure, the lifting of the limiting part in this application is achieved by a rotating cam drive block. The rotation driving force of the cam drive block is driven by the fan blade. At this time, the limiting effect of the limiting part on the rocker arm is no longer related to the swing angle of the spray gun or the pushing force of the rocker arm on the spray gun. Even if the water pressure is low or the rocker arm spray gun device (the rocker arm spray gun device mentioned above) has been out of use for a period of time, the fan blade can still be easily driven to rotate by the action of the water flow, thereby realizing the limiting work of the limiting part on the rocker arm, and ultimately ensuring that the sprinkler irrigation work can be completed smoothly.

[0008] As described above, in a preferred embodiment of the greening irrigation rocker arm spray gun device, the transmission ratio between the transmission rod and the drive rod is 1:70 to 1:90 to ensure the rotation irrigation angle of the spray gun.

[0009] As a further preferred embodiment, in order to ensure that the movement of the cam drive block can smoothly lift the limiting part, the cam drive block is configured as a fan-shaped structure, and the end of the drive rod is connected to its center. In order to ensure the reverse rotation angle of the spray gun, that is, to ensure the limiting time of the limiting part on the rocker arm, the central angle of the cam drive block is 50 to 65°.

[0010] As described above, the greening irrigation rocker arm spray gun device includes a telescopic column that is vertically telescopically mounted on the upper side of the sealing shell. The cam transmission block is configured to periodically push the telescopic column upward. In order to allow the telescopic column to smoothly reset and release the restriction on the rocker arm when the cam transmission block is disengaged from the telescopic column, the telescopic column is elastically telescopically mounted, and the direction of the elastic force is downward.

[0011] In a preferred embodiment, the telescopic column is provided with a telescopic head at its upper end, and a stop block is provided on the upper side of the telescopic head to complete the locking and limiting work of the rocker arm. In order to enable the rocker arm to pass smoothly over the stop block and be stopped by the stop block when it is located on the non-limiting side of the stop block, the telescopic head is elastically telescopic, and the direction of the elastic force is upward.

[0012] As a further preferred embodiment, in order to enable the rocker arm to pass over the stop more smoothly when it is located on the non-limiting side of the stop, the upper side of the stop is an inclined slope structure.

[0013] As described above, in order to facilitate the adjustment of the rotation speed of the transmission rod, the rotation angle of the rocker arm spray gun is controlled by controlling the rotation speed of the cam transmission block. A transition platform is also provided on one side of the sealing shell, through which the transmission rod passes. A speed adjustment bolt that can abut against the transmission rod is spirally provided on one side of the transition platform.

[0014] As described above, in order to ensure the service life of the rocker arm spray gun device and the transmission stability between the fan blades, drive rod and transmission rod, the fan blades, drive rod and transmission rod are all made of copper.

[0015] The beneficial effects of this utility model are as follows: This utility model is a rocker arm spray gun device for greening irrigation. The rocker arm can drive the spray gun to rotate under the action of water flow. At this time, the fan blades also rotate under the impact of the water flow, which in turn drives the transmission rod to rotate through the drive rod. When the transmission rod rotates to the point where the cam transmission block lifts the limiting part, the rocker arm is limited by the limiting part and pushes the spray gun to rotate in the opposite direction. When the cam transmission block continues to rotate with the transmission rod until it disengages from the limiting part, the rocker arm continues to drive the spray gun to rotate under the action of water flow. This is different from the existing method of rotating the spray gun by swinging. The structure achieves the rocker arm limiting operation by using a rotating cam transmission block to lift the limiting part. The rotational driving force of the cam transmission block is driven by the fan blades. At this time, the limiting effect of the limiting part on the rocker arm is no longer related to the swing angle of the spray gun or the pushing force of the rocker arm on the spray gun. Even if the water pressure is low or the rocker arm spray gun device has been out of use for a period of time, the fan blades can still be easily driven to rotate by the water flow, thereby achieving the limiting work of the limiting part on the rocker arm and ultimately ensuring that the sprinkler irrigation work can be completed smoothly. Attached Figure Description

[0016] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the rocker arm spray gun device in the embodiment;

[0019] Figure 2 for Figure 1 The main view;

[0020] Figure 3 This is a schematic diagram of the reversing mechanism in the embodiment;

[0021] Figure 4 This is a schematic diagram of the internal structure of the reversing mechanism in the embodiment;

[0022] Figure 5 This is a schematic diagram of the cooperative transmission structure between the limiting part and the transmission part in the embodiment;

[0023] The components represented by the various reference numerals in the diagram are:

[0024] 1. Connecting seat; 2. Spray gun; 3. Rocker arm; 4. Reversing mechanism; 41. Sealing shell; 42. Connecting frame; 43. Drive unit; 431. Fixing frame; 432. Drive rod; 433. Fan blade; 44. Transmission unit; 441. Transmission rod; 442. Cam transmission block; 45. Limiting part; 451. Telescopic column; 452. Telescopic head; 453. Stop block; 454. Spring; 46. Adapter; 47. Speed ​​adjusting bolt; 48. Connecting cylinder. Detailed Implementation

[0025] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0026] Example

[0027] This embodiment provides a greening irrigation rocker arm 3 spray gun 2 device, see [link / reference] Figure 1 and Figure 2The device includes a connecting base 1 and a spray gun 2 on its upper side. The spray gun 2 is also equipped with a rocker arm 3 and a reversing mechanism 4. The spray gun 2 can realize sprinkler irrigation. Under the reverse pushing action of the rocker arm 3, the spray gun 2 can rotate intermittently in one direction. As for the specific connection method between the spray gun 2 and the rocker arm 3, the existing connection method can be used. There are no restrictions on the specific connection method here. Under the action of the reversing mechanism 4, when the spray gun 2 rotates at a certain angle, it can limit the rocker arm 3, so that the spray gun 2 can rotate in the opposite direction under the action of the rocker arm 3. When the spray gun 2 rotates in the opposite direction at a certain angle, the rocker arm 3 loses the limit of the reversing mechanism 4 and will continue to push the spray gun 2 to rotate intermittently by turning, and finally complete the irrigation operation. The structure of the rocker arm 3 spray gun 2 device (the above-mentioned rocker arm 3 spray gun 2 device) will be described in detail below with reference to the accompanying drawings.

[0028] In this embodiment, the spray gun 2 includes a vertically arranged cylindrical connecting section. The lower end of the connecting section is inserted into the connecting seat 1 and can rotate around a vertical axis. The upper end of the connecting section is connected to a spraying section with the spray direction pointing obliquely upward. Figure 3 and Figure 4 The reversing mechanism 4 includes a sealing shell 41, a connecting frame 42 on one side of which is connected to the outside of the connecting section. The reversing mechanism 4 also includes a limiting part 45 that is vertically telescopically provided on the upper side of the sealing shell 41, and a driving part 43 provided inside the connecting section. The reversing mechanism 4 also includes a transmission part 44, which is configured to be connected to the driving part 43 in a transmission manner, and can push the limiting part 45 to move under the driving action of the driving part 43, thereby realizing the limiting work of the rocker arm 3.

[0029] Firstly, regarding the structure of the drive unit 43, it includes a circular frame-shaped fixing frame 431, which is coaxially disposed within the connecting section. The drive unit 43 also includes a fan blade 433 located inside the connecting section and a drive rod 432 connected to the fan blade 433. The drive rod 432 is vertically disposed through the fixing frame 431 and is rotatably connected to the fixing frame 431. The fan blade 433 is connected to the lower end of the drive rod 432. Under the action of water flow, it can drive the fan blade 433 to rotate, thereby driving the drive rod 432 to rotate around the vertical axis.

[0030] Regarding the structure of the drive unit 43, it includes a horizontally arranged transmission rod 441 with both ends extending into the spray gun 2 and the sealing shell 41 respectively. The upper end of the drive rod 432 is provided with a first ratchet gear, and the end of the transmission rod 441 located inside the spray gun 2 is provided with a second ratchet gear. The second ratchet gear meshes with the first ratchet gear to form a transmission connection, thereby connecting the transmission rod 441 and the drive rod 432. The rotation of the drive rod 432 can drive the transmission rod 441 to rotate around the horizontal axis. The end of the transmission rod 441 located inside the sealing shell 41 is provided with a cam transmission block 442, and the cam transmission block 442 is configured to periodically push the limiting part 45 upward and complete the locking and limiting work of the rocker arm 3.

[0031] In a preferred embodiment, to ensure the rotational irrigation angle of the spray gun 2, the transmission ratio between the transmission rod 441 and the drive rod 432 is 1:70 to 1:90, preferably 1:80, that is, for every 80 rotations of the drive rod 432, the transmission rod 441 rotates once. This transmission ratio can be achieved by controlling the gear ratio of the first ratchet and the second ratchet.

[0032] As a further preferred embodiment, in order to ensure that the movement of the cam drive block 442 can smoothly lift the limiting part 45, the cam drive block 442 is configured as a fan-shaped structure, and the end of the drive rod 441 is connected to its center. In order to ensure the reverse rotation angle of the spray gun 2, that is, to ensure the limiting time of the limiting part 45 on the rocker arm 3, the central angle of the cam drive block 442 is 50 to 65°.

[0033] Finally, regarding the structure of the limiting part 45, the upper side of the sealing shell 41 is provided with a columnar connecting cylinder 48, and the upper side of the sealing shell 41 is provided with a through port that extends into the inner cavity corresponding to the position of the connecting cylinder 48. The limiting part 45 includes a telescopic column 451 that is vertically telescopically disposed in the connecting cylinder 48 on the upper side of the sealing shell 41. The lower end of the telescopic column 451 has a rounded end face structure, and the cam transmission block 442 is configured to periodically push the telescopic column 451 upward.

[0034] In a preferred embodiment, to ensure that the telescopic column 451 can smoothly reset and release the restriction on the rocker arm 3 when the cam drive block 442 disengages from the telescopic column 451, the telescopic column 451 is elastically telescopically configured, and the direction of the elastic force is downward. Specifically, the telescopic column 451 has an extension plate on its outer ring in the middle, and slides inside the connecting cylinder 48 through the extension plate. The outer ring of the telescopic column 451 located on the upper part of the extension plate is provided with a spring 454. The upper and lower ends of the spring 454 abut against the upper end of the connecting cylinder 48 and the extension plate, respectively, so that the telescopic column 451 can move upward under the action of the cam drive block 442, and can reset under the action of the spring 454 after losing the pushing action of the cam drive block 442.

[0035] As a further preferred embodiment, the upper end of the telescopic column 451 is also provided with a telescopic head 452. The upper side of the telescopic head 452 is provided with a stop block 453 that can complete the locking and limiting work of the rocker arm 3. In order to ensure that when the rocker arm 3 is located on the non-limiting side of the stop block 453, it can smoothly pass over the stop block 453 and be stopped by the stop block 453, the telescopic head 452 is elastically telescopic, and the direction of the elastic force is upward. Specifically, the upper end of the telescopic column 451 is provided with a slot, the telescopic head 452 is inserted into the slot, and a spring 454 is also connected between the bottom and the bottom of the slot, so that after the rocker arm 3 passes over the stop block 453, the telescopic head 452 can quickly reset under the action of the spring 454 and stop the rocker arm 3.

[0036] Preferably, in order to enable the rocker arm 3 to pass over the stop 453 more smoothly when it is on the non-limiting side of the stop 453, the upper side of the stop 453 is an inclined slope structure. The orientation of the slope needs to be set according to actual needs, and no specific restrictions are made here.

[0037] Based on the above structure, combined with Figure 5 The rocker arm 3 can drive the spray gun 2 to rotate under the action of water flow. At this time, the fan blade 433 also rotates under the impact of water flow, which in turn drives the transmission rod 441 to rotate through the drive rod 432. When the transmission rod 441 rotates to the point where the cam transmission block 442 lifts the telescopic column 451 of the limiting part 45, the rocker arm 3 stops swinging and drives the spray gun 2 to rotate in the opposite direction due to the limiting stop of the limiting part 45 stop block 453. After the cam transmission block 442 continues to rotate with the transmission rod 441 until it disengages from the telescopic column 451 of the limiting part 45, the telescopic column 451 resets, and the rocker arm 3 loses its stopping function and continues to drive the spray gun 2 to rotate under the action of water flow, which is different from the existing The rocker arm 3 is limited by a swing structure. The lifting of the telescopic column 451 of the limiting part 45 is achieved by a rotating cam transmission block 442. The rotation driving force of the cam transmission block 442 is driven by the fan blade 433. At this time, the limiting effect of the limiting part 45 on the rocker arm 3 is no longer related to the swing angle of the spray gun 2 or the pushing force of the rocker arm 3 on the spray gun 2. Even if the water pressure is low or the rocker arm 3 spray gun 2 device has been out of use for a period of time, the fan blade 433 can still be easily driven to rotate by the water flow, thereby realizing the limiting effect of the limiting part 45 on the rocker arm 3, and ultimately ensuring that the sprinkler irrigation work can be completed smoothly.

[0038] In this embodiment, to facilitate the adjustment of the rotation speed of the transmission rod 441, the rotation angle of the rocker arm 3 spray gun 2 is controlled by controlling the rotation speed of the cam transmission block 442. The sealing shell 41 is also provided with a transition platform 46 on the side near the connecting section. The transmission rod 441 is set through the transition platform 46. A speed adjustment bolt 47 that can abut against the transmission rod 441 is spirally provided on one side of the transition platform 46.

[0039] As a preferred embodiment, in order to ensure the service life of the rocker arm 3 spray gun 2 device, and at the same time to ensure the transmission stability between the fan blade 433, the drive rod 432 and the transmission rod 441, the fixing frame 431, the fan blade 433, the transmission rod 441 and the drive rod 432 are all made of copper.

Claims

1. A green irrigation swing arm spray gun device, comprising a connecting seat (1) and a spray gun (2) on the upper side thereof, and a swing arm (3) and a reversing mechanism (4) are further arranged on the spray gun (2), characterized in that: the reversing mechanism (4) comprises a sealing shell (41) and a limiting part (45) vertically and telescopically arranged on the upper side of the sealing shell (41); the reversing mechanism (4) further comprises a fan blade (433) arranged in the interior of the spray gun (2), and a transmission rod (441) with two ends respectively extending into the interior of the spray gun (2) and the sealing shell (41), the fan blade (433) is further connected with a driving rod (432), one end of the transmission rod (441) is in transmission connection with the driving rod (432), the other end is provided with a cam transmission block (442), and the cam transmission block (442) is arranged to be capable of periodically lifting the limiting part (45) upward and completing the clamping and limiting work of the swing arm (3).

2. A green irrigation swing arm lance device according to claim 1, characterized in that The transmission ratio between the transmission rod (441) and the driving rod (432) is 1:70-1:

90.

3. The green irrigation swing-arm lance device of claim 1, wherein, The cam transmission block (442) is a sector structure, and the end of the transmission rod (441) is connected with the center of the sector structure; The central angle of the cam transmission block (442) is 50-65°.

4. A green irrigation swing arm lance device according to any one of claims 1-3, characterized in that, The limiting part (45) comprises a telescopic column (451) vertically and telescopically arranged on the upper side of the sealing shell (41), and the cam transmission block (442) is arranged to be capable of periodically lifting the telescopic column (451) upward; The telescopic column (451) is arranged to be capable of being elastically telescoped, and the direction of the elastic force is downward.

5. A green irrigation swing arm lance device according to claim 4, characterized in that A telescopic head (452) is arranged on the upper end of the telescopic column (451), and a stop block (453) capable of completing the clamping and limiting work of the swing arm (3) is arranged on the upper side of the telescopic head (452); The telescopic head (452) is arranged to be capable of being elastically telescoped, and the direction of the elastic force is upward.

6. A green irrigation swing arm lance device according to claim 5, characterized in that The upper side of the stop block (453) is an inclined surface structure.

7. A green irrigation swing arm lance device according to any one of claims 1-3, characterized in that, A transfer platform (46) is further arranged on one side of the sealing shell (41), and the transmission rod (441) is arranged through the transfer platform (46); Speed regulating bolts (47) capable of abutting against the transmission rod (441) are spirally arranged on one side of the transfer platform (46).

8. A green irrigation swing arm lance device according to any one of claims 1-3, characterized in that, The fan blade (433), the transmission rod (441) and the driving rod (432) are all made of copper.

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