Wide pressure variable speed and linkage angle variable spray gun

Abstract

The application discloses a wide pressure variable speed and linkage variable angle spray gun, and belongs to the field of agricultural irrigation. The spray gun comprises a flange, an outer sleeve, an elbow bend, a first main spray pipe, a first auxiliary spray pipe, a second main spray pipe, a second auxiliary spray pipe, a speed regulating gear mechanism, a spherical mechanism, a water dispersing needle and a plurality of spray nozzles. By setting double spray pipe independent control valves, flexible switching under different pressure working conditions is realized, and the working pressure range is widened. The speed regulating gear mechanism switches gear pairs with different transmission ratios through a position adjusting mechanism, and three-stage speed regulation is realized. The spherical mechanism connects the first main spray pipe and the second main spray pipe, and the second water dispersing needle is coaxially linked with the second main spray pipe through a water dispersing needle connecting piece, so that the water dispersing needle moves synchronously when the spray pipe elevation angle is adjusted, and separate operation is not needed. The application effectively improves the adaptability and operation convenience of the spray gun in a wide pressure range, and is suitable for agricultural irrigation, garden plant protection and the like.

Description

Technical Field

[0001] This invention belongs to the field of agricultural irrigation technology, and in particular relates to a wide-pressure variable speed and linkage variable angle spray gun. Background Technology

[0002] In modern agricultural production and garden irrigation, the spray gun is a core piece of equipment for agricultural irrigation, and its performance directly affects the work efficiency and spraying effect. Traditional turbine-type spray guns have certain drawbacks, such as a narrow working pressure range, few adjustable speed levels, and the inability to adjust the elevation angle of the nozzle and the spray needle simultaneously.

[0003] Existing spray guns have significant shortcomings in their working pressure adaptability range. Their overall pressure adjustment capability and applicability remain limited, making it difficult to meet the complex and ever-changing demands of actual operations. Furthermore, existing spray guns are significantly deficient in multi-level speed control. Conventional spray guns typically only offer two speed levels, limiting their flexibility and adaptability to various operating conditions. In addition, existing spray guns also suffer from significant deficiencies in their elevation adjustment mechanisms. The nozzle and spray needle cannot be adjusted synchronously, and some spray guns even lack nozzle elevation adjustment functionality, resulting in a limited angle adjustment range. Moreover, because the spray needle and nozzle elevation angles cannot be adjusted synchronously, they must be operated separately, increasing the adjustment process and operational complexity while reducing overall adjustment efficiency.

[0004] Based on the above reasons, this invention designs a wide-pressure variable speed and linkage variable angle spray gun. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art, and to propose a wide-pressure variable speed and linkage variable angle spray gun.

[0006] This invention discloses a wide-pressure, variable-speed, and linked variable-angle spray gun, comprising: The system includes a flange, outer sleeve, elbow, first main nozzle, second main nozzle, fixed bracket, first small nozzle, second small nozzle, spray needle, flywheel, first adjustable elevation main nozzle, first adjustable elevation secondary nozzle, speed transmission rod, reversing rod and reversing mechanism, and also includes: The first auxiliary nozzle has one end connected to the elbow-shaped bend, and the other end connected to the first elevation-adjustable auxiliary nozzle via the second auxiliary nozzle. A speed regulating gear mechanism is connected between the flywheel and the speed transmission rod to achieve multi-level speed regulation; A spherical mechanism is disposed between the first main nozzle and the second main nozzle; The water spray needle includes a first water spray needle and a second water spray needle. The second water spray needle is coaxially linked with the second main nozzle through a water spray needle connector, so that when the elevation angle of the second main nozzle is adjusted, the elevation angle of the second water spray needle is adjusted synchronously.

[0007] In the above-mentioned wide-pressure variable speed and linkage variable angle spray gun, the first main nozzle is provided with a first valve, and the first auxiliary nozzle is provided with a second valve; multiple rectifier plates are uniformly arranged circumferentially inside the first main nozzle and the first auxiliary nozzle.

[0008] In the aforementioned wide-pressure variable speed and linkage variable angle spray gun, the speed regulating gear mechanism includes a gearbox, an upper gearbox, a first gear rod, a second gear rod, a position adjustment mechanism, and a worm gear. The first gear rod is provided with a first driving gear, a second driving gear, and a third driving gear. The second gear rod is provided with a fourth driven gear, a fifth driven gear, and a sixth driven gear. The flywheel is installed at the upper end of the worm gear, and the worm gear meshes with the first driving gear. The position adjustment mechanism includes an adjustment shaft. By moving the adjustment shaft axially, the first driving gear, the second driving gear, and the third driving gear can selectively mesh with their corresponding driven gears to achieve three-level speed regulation.

[0009] In the above-mentioned wide-pressure variable speed and linkage variable angle spray gun, the side of the adjustment shaft is provided with three speed adjustment holes, corresponding to the first, second and third gear positions respectively; an O-ring is fitted on the adjustment shaft; the driven gear four and driven gear five are respectively provided with square protrusion one and protrusion two, which are used to realize the engagement or disengagement of the gears when the position adjustment mechanism is in different gear positions.

[0010] In the aforementioned wide-pressure variable speed and linkage variable angle spray gun, the spherical mechanism includes a threaded hole, an O-ring sealing ring mounting groove, a split spherical connector, and a sealing gasket; one end of the spherical mechanism is threadedly connected to the first main nozzle, and the other end is threadedly connected to the second main nozzle; the split spherical connector is connected by screws, and its spherical radius is smaller than the radius of the split spherical connector to allow the second main nozzle to be adjusted in elevation relative to the first main nozzle.

[0011] In the aforementioned wide-pressure variable speed and linkage variable angle spray gun, the water-spraying needle connector includes a spherical water-spraying needle connector and a cylindrical water-spraying needle connector; one end of the first water-spraying needle is inserted into the cylindrical hole of the cylindrical water-spraying needle connector and fixed by a pin hole; the second water-spraying needle passes through the second water-spraying needle fixing structure and is connected to the other end of the water-spraying needle connector through a cylindrical hole connector, and the cylindrical hole connector has screw holes on its side for fixing.

[0012] In the above-mentioned wide-pressure variable speed and linkage variable angle spray gun, the diameter of the first main nozzle is 1.25 to 1.7 times the diameter of the first auxiliary nozzle, and the length of the first main nozzle is 1.2 to 1.3 times the length of the second auxiliary nozzle.

[0013] In the above-mentioned wide-pressure variable speed and linkage variable angle spray gun, the first driving gear and the fourth driven gear are helical gears, and the remaining gears are spur gears; the end face pressure angle, module and direction of rotation of the meshing gears are equal to the axial pressure angle, module and direction of rotation of the worm.

[0014] In the above-mentioned wide-pressure variable speed and linkage variable angle spray gun, the ratio of the outlet orifice diameter of the first adjustable elevation angle main nozzle and the first adjustable elevation angle auxiliary nozzle is 1.5:1; the distance between the tip of the second water-spraying needle and the nozzle outlet is 3 to 7 times the nozzle diameter, and its tip cone angle is 60 to 70°.

[0015] In the above-mentioned wide-pressure variable speed and linkage variable angle spray gun, the second small nozzle is a duckbill-shaped nozzle, and its outlet flow cross-sectional area is equal to that of the first small nozzle; the thickness of the rectifier plate inside the first main nozzle and the first auxiliary nozzle is 8% to 10% of the nozzle diameter, and the height is 30% to 40% of the nozzle diameter.

[0016] The beneficial effects of this invention are as follows: 1. This invention, through a multi-stage speed adjustment mechanism, can achieve more than two levels of speed adjustment according to different working conditions, which can be widely adapted to various application scenarios, with strong versatility and wide applicability; at the same time, the speed adjustment operation is simple and the adjustment process is stable and reliable, and the speed can be quickly switched without complicated operation, effectively improving the overall performance and ease of operation of the device.

[0017] 2. This invention incorporates a spherical structure at the connection between the second main nozzle and the first adjustable elevation nozzle. The second water-spraying needle and the second main nozzle are designed to be coaxially linked, allowing them to rotate synchronously without separate adjustment or control. During spraying, only the second main nozzle needs to be operated to drive the second water-spraying needle to move synchronously, effectively simplifying the operation process and making the overall device easier and faster to operate, thus improving ease of use and work efficiency.

[0018] 3. This invention, through a combined spraying structure with two different sizes of small nozzles and two different spray pipes, can flexibly switch spraying modes and working parameters according to different working scenarios and operational needs. It can be widely adapted to a variety of complex working conditions and environments, effectively improving the applicability, versatility and operational flexibility of the device, and meeting the usage requirements of diverse spraying operations. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the structure of a wide-pressure variable speed and linkage variable angle spray gun according to the present invention. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the structure of a wide-pressure variable speed and linkage variable angle spray gun according to the present invention. Figure 2 .

[0021] Figure 3 This is a schematic diagram of the gearbox structure.

[0022] Figure 4 This is a schematic diagram of the speed regulating gear set.

[0023] Figure 5 This is a schematic diagram of the rectifier plate.

[0024] Figure 6 This is a schematic diagram of the second main nozzle.

[0025] Figure 7 This is a schematic diagram of a spherical mechanism.

[0026] Figure 8 This is a schematic diagram of the structure of the first water-dispersing needle.

[0027] Figure 9 This is a schematic diagram of the second water-dispersing needle.

[0028] Figure 10 This is a schematic diagram of a cylindrical hole.

[0029] Figure 11 This is a structural diagram of the water jet connector. Figure 12a This is a structural diagram of the elbow-type bend at the first angle.

[0030] Figure 12b This is a structural diagram of the second angle of the elbow-type bend.

[0031] Figure 13a This is a schematic diagram of the internal structure of an elbow-shaped bend.

[0032] Figure 13b This is a cross-sectional diagram of an elbow-shaped bend.

[0033] Figure 14 This is a schematic diagram of the structure of the first small nozzle.

[0034] Figure 15 This is a schematic diagram of the second small nozzle.

[0035] Figure 16 This is a schematic diagram of the second nozzle.

[0036] Figure 17 This is a structural diagram of the fixed support.

[0037] Figure 18 This is a schematic diagram of the flange and outer sleeve assembly.

[0038] Figure 19 This is a schematic diagram of the reversing mechanism.

[0039] Figure 20 This is a schematic diagram of the speed transmission rod.

[0040] Figure 21 This is a schematic diagram of the structure of each surface of the speed regulating gear set.

[0041] In the picture: 1 flange, 101 threaded hole; 2 limit rings; 3 elbow-shaped elbow, 301 water jet needle fixing component, 302 third connecting hole, 303 first connecting hole, 304 second connecting hole; 4. First main nozzle, 401 fairing plate; 5. First valve; 6. Fixed frame, 601 first support hole, 602 second support hole, 603 horizontal groove; 7. Nozzle connectors; 8 Second main nozzle, 801 Water jet fixing structure, 802 hole, 803 Threaded hole two, 804 Threaded hole three; 9. Adjustable first elevation angle main nozzle; 10. Water diffuser needle, 1001 first water diffuser needle, 100101 end, 100102 cylindrical hole, 1002 water diffuser needle connector, 100201 spherical water diffuser needle connector, 100202 cylindrical water diffuser needle connector, 100203 pin hole, 1003 cylindrical hole connector, 100301 screw hole, 1004 second water diffuser needle; 11 First small nozzle, 1101 bracket; 12 nuts; 13. First rotary valve; 14 Spherical mechanism, 1401 Threaded hole four, 1402 O-ring mounting groove, 1403 Sealing gasket, 1404 Split spherical connector, 140401 Threaded hole five, 140402 End face, 140403 Chamfer; 15 flywheels; 16 Speed ​​regulating gear mechanism, 1601 Upper gearbox, 1602 Adjustment shaft, 160201 Keyway, 160202 Speed ​​regulating hole, 160203 Cuboid, 1603 Gearbox, 160301 Worm hole, 1604 Worm one, 1605 Second gear rod, 160501 Driven gear four, 16050101 Protrusion one, 160502 Driven gear five, 16050201 Protrusion two, 160503 Driven gear six, 160504 Slot, 1606 First gear rod, 160601 Driving gear one, 160602 Driving gear two, 160603 Driving gear three; 17. Reversing lever; 18 speed transmission rods, 1801 raised mechanism; 19. Reversing mechanism; 1901 groove; 20. Adjustable first elevation angle secondary nozzle; 21. Second small nozzle; 22 nuts, part two; 23. Second rotary valve; 24 Second nozzle, 2401 First screw hole; 25. Second valve; 26. First nozzle; 27 Cams; 28 worm gear II; 29. Snap rings; 30 inner sleeve; 31 Gears Seven; 32 outer sleeve, 3201 threaded hole six; 33 deep groove ball bearing; 34 keys; 35 O-rings; 36 bearing. Detailed Implementation

[0042] To facilitate understanding of this application and to make the aforementioned objectives, features, and advantages of this application more apparent, a detailed description of specific embodiments of this application is provided below in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application, and preferred embodiments of this application are shown in the accompanying drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. This application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of these features. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. In the description of this application, "several" means at least one, such as one, two, etc., unless otherwise explicitly specified. It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is only for describing particular implementations and is not intended to limit the scope of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] Reference Figure 1-4A spray gun includes a flange 1, an outer sleeve 32, an elbow 3, a first main nozzle 4, a second main nozzle 8, a fixed bracket 6, a first small nozzle 11, a second small nozzle 21, a spray needle 10, a flywheel 15, a first adjustable elevation main nozzle 9, a first adjustable elevation secondary nozzle 20, a speed transmission rod 18, a reversing rod 17, and a reversing mechanism 19. The flange 1 has multiple threaded holes 101. The outer sleeve 32 is mounted on top of the flange 1 and has multiple threaded holes 3201 aligned with the positions of the threaded holes 101. The flange 1 and the outer sleeve 32 are fastened together with bolts through the threaded holes 101 and 3201. An inner sleeve 30 is installed inside the outer sleeve 32, and two bearings 36 are installed between the outer sleeve 32 and the inner sleeve 30. The top end of the inner sleeve 30 engages with the bottom end of the elbow 3. The elbow-shaped elbow 3 is provided with a first connecting hole 303, a second connecting hole 304, and a third connecting hole 302. The first connecting hole 303 is fixedly connected to one end of the first main nozzle 4, the second connecting hole 304 is fixedly connected to one end of the first auxiliary nozzle 26, and the other end of the first main nozzle 4 is threadedly connected to the threaded hole 1401 of the spherical mechanism 14. A first valve 5 is installed in the middle of the first main nozzle 4. Six rectifier plates 401 are evenly arranged circumferentially inside the first main nozzle 4, and the rectifier plates 401 are flush with the port of the first main nozzle 4. The other end of the spherical mechanism 14 is threadedly connected to the threaded hole 804 of the second main nozzle 8. The spherical mechanism 14 is provided with an O-ring mounting groove 1402 in the middle, and a sealing gasket 1403 is installed on the end face 140402 of the split spherical connector 1404, which is connected to the threaded hole 140401 on the split spherical connector 1404 by screws.

[0044] The second main nozzle 8 has a hole 802 at its front end and a first adjustable elevation main nozzle 9 is installed thereon. One end of the second main nozzle 8 has symmetrically arranged threaded holes 803 on both sides for connecting a first rotary valve 13. The first rotary valve 13 and the first small nozzle 11 are connected by a nut 12. The front end of the first small nozzle 11 has a bracket 1101 for installing a water-spraying needle. The other end of the first auxiliary nozzle 26 is threadedly connected to the second auxiliary nozzle 24, which has a first threaded hole 2401. A second valve 25 is installed in the middle of the first auxiliary nozzle 26, and six flow straighteners are evenly distributed circumferentially inside the first auxiliary nozzle 26, arranged in the same way as the first main nozzle 4. The front end of the second auxiliary nozzle 24 is equipped with a first adjustable elevation auxiliary nozzle 20. The middle sides of the second auxiliary nozzle 24 are also symmetrically threaded with second rotary valves 23, which are connected to the second small nozzle 21 by nuts 22.

[0045] This spray gun is also equipped with a fixed frame 6. The fixed frame 6 is provided with a first support hole 601 and a second support hole 602. The first main nozzle 4 passes through the first support hole 601, and the first auxiliary nozzle 26 passes through the second support hole 602. The edge of the fixed frame 6 is provided with a horizontal groove 603, and the reversing rod 17 passes through the horizontal groove 603. The left and right swing of the reversing rod 17 is controlled by the cooperation of the reversing mechanism 19 and the limiting ring 2. The reversing rod 17 is embedded in the groove 1901 on the reversing mechanism 19, and the other end of the reversing rod 17 is threadedly connected to the third connecting hole 302 of the elbow 3. The water-dispersing needle 10 includes a first water-dispersing needle 1001 and a second water-dispersing needle 1004. The end 100101 of the first water-dispersing needle 1001 passes through the water-dispersing needle fixing member 30. The water-dispersing needle connector 1002 includes a spherical water-dispersing needle connector 100201 and a cylindrical water-dispersing needle connector 100202. The spherical water-dispersing needle connector 100201 is inserted into the cylindrical hole 100102 at the other end and connected by a pin hole 100203. The second water-dispersing needle 1004 passes through the second water-dispersing needle fixing structure 801 and is connected to the other end of the cylindrical water-dispersing needle connector 100202 of the water-dispersing needle connector 1002 through a cylindrical hole connector 1003. The cylindrical hole connector 1003 has a screw hole 100301 on its side for fixing the water-dispersing needle connector 1002 and the second water-dispersing needle 1004.

[0046] The speed regulating gear mechanism 16 consists of a gearbox 1603, an upper gearbox 1601, a first gear rod 1606, a second gear rod 1605, a position adjustment mechanism, and a worm gear 1604. The gearbox 1603 and the upper gearbox 1601 are connected by bolts through bolt holes 160301 and 160101. The first gear rod 1606 is equipped with a first driving gear 160601, a second driving gear 160602, and a third driving gear 160603. The second gear rod 1605 is equipped with a fourth driven gear 160501, a fifth driven gear 160502, and a sixth driven gear 160503. The fourth driven gear 160501 has two protrusions 16050101, and the fifth driven gear 160502 also has two protrusions 16050201. A flywheel 15 is mounted on the upper end of the worm gear 1604. The worm gear 1604 is inserted into the worm bore 160301 of the gearbox 1603, and meshes with the driving gear 160601. The driving gear 160601 and the driven gear 160501 mesh with each other, and the driven gear 160501 has a deep groove ball bearing 33 inside. The remaining gears mesh according to the required speed. The positioning mechanism includes a positioning shaft 1602. One end of the positioning shaft 1602 has an L-shaped cuboid 160201. A keyway 160201 is formed on the upper part of the positioning shaft 1602, and a key 34 is installed in the keyway 160201 to prevent the positioning shaft 1602 from rotating. The length of the keyway is 2 / 3 of the length of the positioning mechanism 1602. Three speed adjustment holes 160202 are formed on the side of the positioning shaft 1602. An O-ring 35 is fitted on the positioning shaft 1602 to prevent the lubricating oil inside the gearbox from leaking out and to block external dust and impurities from entering the gearbox. The end of the second gear rod 1605 passes through the upper gearbox 1601 and extends to the outside of the upper gearbox 1601. The end of the second gear rod 1605 has a retaining groove 160504. The protrusion mechanism 1801 of the speed transmission rod 18 is embedded in the retaining groove 160504 for transmitting power.

[0047] The elbow-shaped elbow 3 internally includes a gear 7 31, an inner sleeve 30, an outer sleeve 32, a worm gear 28, and a cam 27. The port of the inner sleeve 30 is connected and communicates with the port of the elbow-shaped elbow 3. The upper end of the outer sleeve 32 is fitted with the gear 7 31, and the outer sleeve 32 is also connected with a retaining ring 29. The lower end of the outer sleeve 32 is fitted with a limiting ring 2. The outer sleeve 32 and the inner sleeve 30 are connected by a bearing 36. The diameter of the first main nozzle 4 is 1.25 to 1.7 times the diameter of the first auxiliary nozzle 26, and the length of the first main nozzle 4 is 1.2 to 1.3 times the length of the second auxiliary nozzle 24. The speed-regulating gearbox contains multiple sets of reduction gears with different transmission ratios, including 1, 1.75, and 0.5. These ratios are switched via a position adjustment mechanism to achieve three-level speed regulation. The driving gear 160601 and the driven gear 160501 are helical gears, while the remaining gears are spur gears. The meshing gears must ensure that their end-face pressure angle, module, and direction of rotation are equal to those of the worm gear 1604. The ratio of the outlet diameter of the first adjustable elevation main nozzle 9 to the first adjustable elevation secondary nozzle 20 is 1.5:1. The rotational speed of the second gear rod 1605 output from the gearbox is ensured to be 20-30 revolutions per minute, corresponding to a oscillation frequency of 20-30 times per minute for the water jet needle 10. The thickness of the driving gear 2 (160602) should be 80% to 90% of the distance between the driven gears 5 (160502) and 6 (160503). The thickness of the driven gear 5 (160502) should be 80% to 90% of the distance between the driving gear 1 (160601) and 2 (160602). The thicknesses of the driving gear 1 (160601) and 4 (160501) should be equal. The thicknesses of the driving gear 2 (160602) and 5 (160502) should be equal. The thicknesses of the driving gear 3 (160603) and 6 (160503) should be equal. The value of the first distance L1 should be 89% to 91% of the value of the second distance L2.

[0048] The second water-spraying needle 1004 rotates and is guided by the water-spraying needle connector 1002. The distance between the tip of the second water-spraying needle 1004 and the nozzle outlet is 3 to 7 times the nozzle diameter, and its tip cone angle is 60 to 70°. The diameter of the pin hole 100301 on the water-spraying needle connector 1002 should be 1 mm larger than the pin diameter. The distance between the pin hole 1003 on the first water-spraying needle 1001 and the left end face should be 3% to 5% smaller than the distance between the pin hole 100301 and the spherical water-spraying needle connector 100201. The thickness of the flow straightener inside the nozzle is 8% to 10% of the nozzle diameter, and its height is 30% to 40% of the nozzle diameter. The radius of the spherical mechanism 14 is 3.5% to 5% smaller than the radius of the split spherical connector 1404. After the O-ring is installed in the O-ring mounting groove 1402, the protrusion of the O-ring is 4% to 5.5% higher than the spherical surface. The diameter of the chamfer 1403 of the split spherical connector 1404 is at least 3 to 4 times the diameter of the neck 1405 of the spherical mechanism 14. The second small nozzle 21 is a duckbill-shaped nozzle, and its outlet flow cross-sectional area is equal to that of the first small nozzle 11.

[0049] This spray gun uses pressurized water as its power source. After entering the main body of the spray gun, the water flow is divided into multiple paths. One path enters the first main nozzle 4 and the first auxiliary nozzle 26, flowing through the rectifier plate 401 for flow stabilization and rectification. A portion is guided and pressure-stabilized by the spherical mechanism 14, ultimately being sprayed directionally from the first adjustable elevation main nozzle 9 and the first small nozzle 11. Another portion is directly sprayed from the first adjustable elevation auxiliary nozzle 20 and the second small nozzle 21, achieving large-area water spraying. Another path of water flow impacts the flywheel 15 through the reversing rod 17, driving the flywheel 15 to rotate at high speed. The rotation of the flywheel 15 drives the worm gear 1604 to rotate, which in turn drives the drive gear 160601. Since the drive gear 160601 is always meshed with the driven gear 160501, the driven gear 160501 rotates accordingly. Pull the position adjustment mechanism outwards until it locks into the rightmost speed adjustment hole 160202. At this point, driven gears four (160501) and five (160502) are engaged through protrusions one (16050101) and two (16050201), rotating synchronously. The speed adjustment mechanism is in third gear, at its fastest speed. Push the position adjustment mechanism inwards until it locks into the middle speed adjustment hole 160202. At this point, driving gear two (160602) meshes with driven gear five (160502), and the speed adjustment mechanism is in second gear, at a medium speed. Continue pushing the position adjustment mechanism inwards until it locks into the leftmost speed adjustment hole 160202. At this point, driving gear three (160603) meshes with driven gear six (160503), and driving gear two (160602) disengages from driven gear five (160502). The speed adjustment mechanism is in first gear, at its slowest speed. Power is transmitted to the worm gear 28 via the protrusion 1801 of the speed transmission rod 18 engaging with the slot 160504 of the second gear rod 1605. The worm gear 28 meshes with the gear 31. Since the gear 31 remains fixed and does not move, the worm gear 28 rotates around the gear 31 under the action of the reaction force, thereby driving the elbow bend 3 to rotate, and ultimately driving the spray gun to rotate. When the reversing rod 17 rotates to the other end of the horizontal groove 603, it will cause the flywheel 15 to reverse, resulting in the spray gun rotating in the opposite direction.

[0050] When in a high-pressure environment, the first valve 5 and the second valve 25 are opened simultaneously, and the first main nozzle 4, the first auxiliary nozzle 26, and all nozzles operate simultaneously. Pressurized water enters through the elbow bend 3, with a portion entering the first main nozzle 4, where it is stabilized by the rectifier plate 401 and then guided by the spherical mechanism 14, exiting from the first adjustable elevation main nozzle 9 and the first small nozzle 11 respectively. The other portion enters the first auxiliary nozzle 26, where it is stabilized by its internal rectifier plate, and then exiting from the first adjustable elevation auxiliary nozzle 20 and the second small nozzle 21. When in a medium-pressure environment, only the first valve 5 is opened, enabling the first main nozzle 4 and the first small nozzle 11 to operate. When in a low-pressure environment, only the second valve 25 is opened, enabling the first auxiliary nozzle 26 and the second small nozzle 21 to operate. Simultaneously, pressure adjustment and torque amplification are achieved through the speed regulating mechanism, transmitting power via the speed transmission rod 18 to the worm gear 28, driving all nozzles to rotate. If the pressure is still insufficient, the second small nozzle 21 can be further closed.

[0051] Under wind interference conditions, the spherical mechanism 14 on the adjustable first main nozzle 4 can be used to fine-tune the spray angle to counteract the wind. Then, according to the wind strength and direction, the elevation angle of the second main nozzle 8 and the second water-spraying needle 1004 is adjusted synchronously. Since the second water-spraying needle 1004 and the second main nozzle 8 are coaxially linked through the water-spraying needle connector 1002, they move synchronously and do not need to be adjusted separately. Finally, the first elevation-adjustable main nozzle 9 can be finely adjusted for elevation angle based on the synchronous adjustment. When a long range is required, the speed control mechanism is adjusted to the lowest setting, and the elevation angle is increased synchronously through the second main nozzle 8 and the second water-spraying needle 1004. This, combined with the first elevation-adjustable main nozzle 9 and the spherical mechanism 14, allows for fine angle compensation, thereby ensuring sufficient spray distance.

[0052] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative and not exhaustive. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A wide-pressure variable speed and linkage variable angle spray gun, comprising a flange (1), an outer sleeve (32), an elbow (3), a first main nozzle (4), a second main nozzle (8), a fixed bracket (6), a first small nozzle (11), a second small nozzle (21), a spray needle (10), a flywheel (15), a first elevation angle adjustable main nozzle (9), a first elevation angle adjustable auxiliary nozzle (20), a speed transmission rod (18), a reversing rod (17), and a reversing mechanism (19), characterized in that, Also includes: The first auxiliary nozzle (26) is connected at one end to the elbow (3) and at the other end to the first adjustable elevation auxiliary nozzle (20) via the second auxiliary nozzle (24); Speed ​​regulating gear mechanism (16) is connected between the flywheel (15) and the speed transmission rod (18) to realize multi-level speed regulation; A spherical mechanism (14) is disposed between the first main nozzle (4) and the second main nozzle (8); The water spray needle (10) includes a first water spray needle (1001) and a second water spray needle (1004). The second water spray needle (1004) is coaxially linked with the second main nozzle (8) through a water spray needle connector (1002), so that when the elevation angle of the second main nozzle (8) is adjusted, the elevation angle of the second water spray needle (1004) is adjusted synchronously.

2. The wide-pressure variable speed and linkage variable angle spray gun according to claim 1, characterized in that: The first main nozzle (4) is provided with a first valve (5), and the first auxiliary nozzle (26) is provided with a second valve (25); the interior of the first main nozzle (4) and the first auxiliary nozzle (26) are respectively provided with multiple rectifier plates (401) evenly arranged in the circumferential direction.

3. The wide-pressure variable speed and linkage variable angle spray gun according to claim 1 or 2, characterized in that: The speed regulating gear mechanism (16) includes a gearbox (1603), an upper gearbox (1601), a first gear rod (1606), a second gear rod (1605), a position adjustment mechanism, and a worm gear (1604); the first gear rod (1606) is provided with a first driving gear (160601), a second driving gear (160602), and a third driving gear (160603); the second gear rod (1605) is provided with a fourth driven gear (160501) and a fifth driven gear (160502). The first drive gear (160503) is equipped with a driven gear six (160503); the flywheel (15) is installed on the upper end of the first worm gear (1604), and the first worm gear (1604) meshes with the first drive gear (160601); the position adjustment mechanism includes an adjustment shaft (1602), and by moving the adjustment shaft (1602) axially, the first drive gear (160601), the second drive gear (160602), and the third drive gear (160603) can selectively mesh with the corresponding driven gears to achieve three-level speed regulation.

4. The wide-pressure variable speed and linkage variable angle spray gun according to claim 3, characterized in that: The adjusting shaft (1602) has three speed adjustment holes (160202) on its side, corresponding to the first, second and third gear positions respectively; an O-ring (35) is fitted on the adjusting shaft (1602); the driven gear four (160501) and driven gear five (160502) are respectively provided with square protrusion one (16050101) and protrusion two (16050201), which are used to realize the engagement or disengagement of the gears when the position adjustment mechanism is in different gear positions.

5. The wide-pressure variable speed and linkage variable angle spray gun according to claim 1, characterized in that: The spherical mechanism (14) includes a threaded hole (1401), an O-ring mounting groove (1402), a split spherical connector (1404), and a sealing gasket (1403); one end of the spherical mechanism (14) is threadedly connected to the first main nozzle (4), and the other end is threadedly connected to the second main nozzle (8); the split spherical connector (1404) is connected by screws, and its spherical radius is smaller than the radius of the split spherical connector, so as to allow the second main nozzle (8) to be adjusted at the elevation angle relative to the first main nozzle (4).

6. The wide-pressure variable speed and linkage variable angle spray gun according to claim 1, characterized in that: The water-diffusing needle connector (1002) includes a spherical water-diffusing needle connector (100201) and a cylindrical water-diffusing needle connector (100202); one end of the first water-diffusing needle (1001) is inserted into the cylindrical hole of the cylindrical water-diffusing needle connector (100202) and fixed by a pin hole (100203); the second water-diffusing needle (1004) passes through the second water-diffusing needle fixing structure (801) and is connected to the other end of the water-diffusing needle connector (1002) through a cylindrical hole connector (1003), and the cylindrical hole connector (1003) has a screw hole (100301) on its side for fixing.

7. The wide-pressure variable speed and linkage variable angle spray gun according to claim 1, characterized in that: The diameter of the first main nozzle (4) is 1.25 to 1.7 times the diameter of the first auxiliary nozzle (26), and the length of the first main nozzle (4) is 1.2 to 1.3 times the length of the second auxiliary nozzle (24).

8. The wide-pressure variable speed and linkage variable angle spray gun according to claim 3, characterized in that: The first driving gear (160601) and the fourth driven gear (160501) are helical gears, and the remaining gears are spur gears; the end face pressure angle, module and direction of rotation of the meshing gears are equal to the axial pressure angle, module and direction of rotation of the first worm (1604).

9. The wide-pressure variable speed and linkage variable angle spray gun according to claim 1, characterized in that: The ratio of the outlet diameter of the first adjustable elevation main nozzle (9) to the first adjustable elevation secondary nozzle (20) is 1.5:1; the distance between the tip of the second water-dispersing needle (1004) and the nozzle outlet is 3 to 7 times the nozzle diameter, and its tip cone angle is 60 to 70 degrees.

10. The wide-pressure variable speed and linkage variable angle spray gun according to claim 1, characterized in that: The second small nozzle (21) is a duckbill-shaped nozzle, and its outlet flow cross-sectional area is equal to that of the first small nozzle (11). The thickness of the rectifier plate inside the first main nozzle (4) and the first auxiliary nozzle (26) is 8% to 10% of the nozzle diameter, and the height is 30% to 40% of the nozzle diameter.

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