Rotary lance for irrigation equipment

Abstract

The application relates to the technical field of irrigation equipment and discloses a rotary spray gun for irrigation equipment, a manual control mechanism, a hose and a telescopic liquid spraying mechanism connected with the input and output ends of the manual control mechanism respectively; the telescopic liquid spraying mechanism comprises a fixed sealing base assembly, a telescopic circumferential spraying assembly arranged in the fixed sealing base assembly and a fixed-point spraying assembly connected with the other end of the telescopic spraying assembly, and the fixed sealing base assembly, the telescopic circumferential spraying assembly and the fixed-point spraying assembly are coaxially arranged; a plurality of liquid-driven rotating mechanisms; a locking mechanism; the length of the spray gun can be adjusted according to spraying requirements, the spray gun can be extended into the area between dense plants for rotary irrigation, the length of the spray gun can also be shortened for fixed-point irrigation of the plants, the structure is simple, the operation is easy, the spray gun can be applied to the irrigation process of different irrigation environments, the occupied space is small after the length is shortened, the spray gun can be conveniently carried and stored, and the equipment has high integration.

Description

Technical Field

[0001] This invention relates to the field of irrigation equipment technology, and more specifically, to a rotary spray gun for irrigation equipment. Background Technology

[0002] The rotary irrigation spray gun is water-powered and requires no external power source. It relies on the water pressure in the pipeline to power the rotation of the spray gun.

[0003] When watering gardens, small parks, and green belts, gardeners usually use handheld rotary sprayers to spray the plants one by one. However, for some plants with lush foliage and high branch density, the water often cannot be sprayed evenly inside the plant. A large amount of water flows down the outer leaves to the ground around the plant. This requires the staff to increase the spray pressure or spray volume to ensure that the plants receive enough water. However, increasing the spray pressure may damage the plant's branches and leaves, while increasing the spray volume will result in greater water loss. Summary of the Invention

[0004] The purpose of this invention is to provide a rotary spray gun for irrigation equipment in order to solve the above-mentioned problems.

[0005] This invention provides a rotary spray gun for irrigation equipment, comprising:

[0006] A manual control mechanism is provided, with its input and output ends connected to a hose and a telescopic spraying mechanism, respectively. The manual control mechanism is used to adjust the flow rate of the liquid output from the hose to the telescopic spraying mechanism, and the telescopic spraying mechanism is used to spray the liquid output from the hose to a set area.

[0007] The telescopic spraying mechanism includes a fixed sealing base assembly, a telescopic circumferential spraying assembly disposed within the fixed sealing base assembly, and a fixed-point spraying assembly connected to the other end of the telescopic spraying assembly. The fixed sealing base assembly, the telescopic circumferential spraying assembly, and the fixed-point spraying assembly are all coaxially arranged. The telescopic circumferential spraying assembly is used to uniformly spray the liquid output from the hose around its own radial direction, and the fixed-point spraying assembly is used to uniformly spray the liquid output from the hose along its own central axis.

[0008] Several hydraulic rotating mechanisms are evenly connected inside the telescopic circumferential spraying assembly, and each of the several hydraulic rotating mechanisms is used to drive the telescopic circumferential spraying assembly to rotate around its own central axis.

[0009] A locking mechanism is provided for adjusting the length of the telescopic circumferential spraying assembly.

[0010] As a further optimization of the present invention, the manual control mechanism includes a three-way guide tube, a detachable central handle connected to the input end of the three-way guide tube, a hinge frame connected to the outer wall of the three-way guide tube, a pressing handle hinged to the hinge frame, a plug connected to the pressing handle, a spring detachably connected to the control port of the three-way guide tube, an auxiliary seal connected inside the three-way guide tube, and a sealing cap connected between the spring and the plug. The other end of the plug passes through the spring and the sealing cap in sequence and is inserted into the auxiliary seal. The auxiliary seal is matched with the plug. When a gap is generated between the plug and the auxiliary seal, the input and output ends of the three-way guide tube are connected. The flexible hose is detachably connected to the other end of the central handle.

[0011] As a further optimization of the present invention, the fixed sealing base assembly includes a fixed tube, a fixed ring body 1 fixedly connected to the inner wall of the fixed tube, a spring 2 connected to the fixed ring body 1, and an annular push plate 1 fixedly connected to the other end of the spring 2. One end of the fixed tube is detachably connected to the output end of the three-way guide tube, and an annular seal 1 is provided at the opening of the other end of the fixed tube.

[0012] As a further optimization of the present invention, the telescopic circumferential spraying assembly includes a plurality of sliding tubes I and a sliding tube II arranged sequentially from the outside to the inside, a limiting ring I connected to the outer wall of one end of the sliding tube I, a spring III fixedly connected to the inner wall of the sliding tube I, an annular push plate II fixedly connected to the other end of the spring III, a plurality of spray holes I provided on the sliding tube I, a plurality of spray holes II provided on the sliding tube II, and a limiting ring II fixedly connected to the outer wall of the sliding tube II. The plurality of sliding tubes I and the sliding tube II are coaxially arranged, the plurality of spray holes I are evenly distributed on the sliding tube I, and the plurality of spray holes II are evenly distributed on the sliding tube II.

[0013] As a further optimization of the present invention, the fixed-point spraying assembly includes a directional nozzle connected to the output end of the sliding tube two and a plurality of spray holes three disposed on the directional nozzle, wherein the channel directions of the spray holes three are all distributed sequentially along the central axis of the sliding tube two.

[0014] As a further optimization of the present invention, the hydraulic rotation mechanism includes a second connecting rod, a guide column connected to the second connecting rod, and a plurality of blades connected to the outer wall of the guide column. The plurality of the second connecting rods are respectively connected to a plurality of first sliding tubes and a second sliding tube.

[0015] As a further optimization of the present invention, the locking mechanism includes a locking component fixedly connected to the three-way guide tube and a movable connecting component connected to the sliding tube II, wherein the movable connecting component and the locking component are detachably connected.

[0016] As a further optimization of the present invention, the locking assembly includes a locking rod fixedly connected to a spring and a threaded portion provided at the other end of the locking rod, wherein the length of the locking rod is greater than the length of the fixing tube.

[0017] As a further optimization of the present invention, the movable connecting assembly includes a fixed ring body two fixedly connected to the outer wall of the sliding tube two, a movable collar movably connected to the fixed ring body two, a connecting rod one connected to the movable collar, an annular base fixedly connected to the other end of the connecting rod one, and a movable nut movably connected to the annular base. The annular base and the movable nut are both matched with the threaded portion.

[0018] As a further optimization of the present invention, the connecting rod includes a hollow sleeve fixedly connected to the movable collar and a threaded rod threadedly connected to the hollow sleeve. The movable collar is provided with a through hole that mates with the hollow sleeve. The length of the threaded rod is greater than the length of the hollow sleeve. The annular base is fixedly connected to the threaded rod.

[0019] The beneficial effects of this invention are as follows: the length of the spray gun can be adjusted according to the spraying requirements, allowing the spray gun to be extended into the area between dense plants for rotating irrigation, or shortened for fixed-point irrigation of the plants. It has a simple structure, is easy to operate, and is suitable for irrigation processes in different irrigation environments. Moreover, it occupies less space after being shortened, making it convenient to carry and store, and the equipment has high integration. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is the invention Figure 1 A partial cross-sectional view;

[0022] Figure 3 This is the invention Figure 1 A magnified view of point A;

[0023] Figure 4 This is the invention Figure 1 An enlarged view of point B;

[0024] Figure 5 This is the invention Figure 2 A magnified view at point C;

[0025] Figure 6 This is the invention Figure 2 A magnified view at point D;

[0026] Figure 7 This is the invention Figure 2 A magnified view at point E;

[0027] Figure 8 This is a schematic diagram of the internal structure of the manual control mechanism of the present invention.

[0028] In the diagram: 1. Manual control mechanism; 101. Three-way guide tube; 102. Center-through handle; 103. Hinge frame; 104. Press handle; 105. Blocking component; 106. Auxiliary sealing component; 107. Spring 1; 108. Sealing cap; 2. Hose; 3. Telescopic spraying mechanism; 301. Fixed tube; 3010. Fixed ring 1; 3011. Spring 2; 3012. Annular seal 1; 3013. Annular push plate 1; 302. Sliding tube 1; 3020. Spray hole 1; 3021 1. Limiting ring 1; 3022. Spring 3; 303. Sliding tube 2; 3030. Spray hole 2; 304. Directional nozzle; 3040. Spray hole 3; 4. Locking mechanism; 41. Locking assembly; 4101. Locking rod; 4102. Threaded part; 42. Movable connecting assembly; 4201. Fixed ring 2; 4202. Movable collar; 4203. Connecting rod 1; 4204. Annular base; 4205. Movable nut; 501. Connecting rod 2; 502. Guide column; 503. Blade. Detailed Implementation

[0029] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed merely to enable those skilled in the art to better understand and implement the subject matter described herein. Furthermore, features described in some examples may be combined in other examples.

[0030] like Figures 1-8 As shown, a rotary spray gun for irrigation equipment includes:

[0031] The manual control mechanism 1 has a hose 2 and a telescopic spray mechanism 3 connected to its input and output ends, respectively. The manual control mechanism 1 is used to adjust the flow rate of the liquid output from the hose 2 to the telescopic spray mechanism 3. The telescopic spray mechanism 3 is used to spray the liquid output from the hose 2 to the set area.

[0032] The telescopic spraying mechanism 3 includes a fixed sealing base assembly, a telescopic circumferential spraying assembly disposed within the fixed sealing base assembly, and a fixed-point spraying assembly connected to the other end of the telescopic spraying assembly. The fixed sealing base assembly, the telescopic circumferential spraying assembly, and the fixed-point spraying assembly are all coaxially arranged. The telescopic circumferential spraying assembly is used to uniformly spray the liquid output from the hose 2 around its own radial direction, and the fixed-point spraying assembly is used to uniformly spray the liquid output from the hose 2 along its own central axis.

[0033] Several hydraulic rotating mechanisms are evenly connected inside the telescopic circumferential spraying assembly. Each of the several hydraulic rotating mechanisms is used to drive the telescopic circumferential spraying assembly to rotate around its own central axis.

[0034] Locking mechanism 4 is used to adjust the length of the telescopic circumferential spraying assembly.

[0035] It should be noted that during the watering process, the manual control mechanism 1 is manually operated to select the watering method according to the needs of the plants. One method is that the locking mechanism 4 is kept in a locked state, at which time the telescopic spraying mechanism 3 is in its shortest state. The channels on the telescopic circumferential spraying component that can spray liquid are all inside the fixed sealed base component. At this time, only the fixed-point spraying component can spray. The hose 2 and the telescopic spraying mechanism 3 are connected by the manual control mechanism 1. At this time, the liquid output from the hose 2 can only be sprayed from the fixed-point spraying component. During the water flow, the telescopic circumferential spraying component can be rotated by driving the hydraulic rotation mechanism, and the fixed-point spraying component can be rotated in the same direction and at the same angle. At this time, the centrifugal force can expand the spraying range of the liquid sprayed from the fixed-point spraying component, thereby effectively increasing the spraying range.

[0036] Another method is as follows: the locking mechanism 4 is in the unlocked state, and the telescopic spraying mechanism 3 is in its longest state. All channels on the telescopic circumferential spraying component that can spray liquid are in the open state. At this time, liquid can be sprayed to the outside simultaneously through the telescopic circumferential spraying component and the directional spraying component. During the rotation of the telescopic circumferential spraying component, it sprays the coverage area in a circumferential manner, which can effectively increase the spraying range. When the telescopic circumferential spraying component is inserted into densely planted areas such as shrubs, it can effectively improve irrigation efficiency and reduce water consumption.

[0037] In an optional embodiment of the invention, such as Figure 8As shown, the manual control mechanism 1 includes a three-way guide tube 101, a center-type handle 102 detachably connected to the input end of the three-way guide tube 101, a hinge frame 103 connected to the outer wall of the three-way guide tube 101, a pressing handle 104 hinged to the hinge frame 103, a plug 105 connected to the pressing handle 104, a spring 107 detachably connected to the control port of the three-way guide tube 101, and an auxiliary seal connected inside the three-way guide tube 101. 106 and a sealing cap 108 connected between spring 107 and plug 105. The other end of plug 105 passes through spring 107 and sealing cap 108 in sequence and is inserted into auxiliary sealing 106. Auxiliary sealing 106 is matched with plug 105. When a gap is generated between plug 105 and auxiliary sealing 106, the input and output ends of the three-way guide tube 101 are connected. The hose 2 is detachably connected to the other end of the central grip 102.

[0038] It should be noted that, as described above, the flow rate of liquid input from the hose 2 to the telescopic spray mechanism 3 is controlled by the manual control mechanism 1. Specifically, by gripping and pressing the handle 104, it rotates around the position hinged to the hinge frame 103, causing the plug 105 to move towards the spring 107. As the plug 105 disengages from the auxiliary seal 106, the internal channel of the three-way guide tube 101 is opened, and the liquid input from the hose 2 can flow out from the three-way guide tube 101. By controlling the gap between the plug 105 and the auxiliary seal 106, the flow rate of liquid flowing from the manual control mechanism 1 can be controlled.

[0039] In an optional embodiment of the invention, such as Figures 1-2 and Figure 5 As shown, the fixed sealing base assembly includes a fixed tube 301, a fixed ring 3010 fixedly connected to the inner wall of the fixed tube 301, a spring 3011 connected to the fixed ring 3010, and an annular push plate 3013 fixedly connected to the other end of the spring 3011. One end of the fixed tube 301 is detachably connected to the output end of the three-way guide tube 101, and an annular seal 3012 is provided at the opening of the other end of the fixed tube 301.

[0040] It should be noted that, as mentioned above, when the locking mechanism 4 is in the unlocked state, the spring 3011 inside the fixed tube 301 is no longer limited. During its reset and extension process, it pushes the annular push plate 3013 connected to it to move toward the other end of the fixed tube 301. In this process, it pushes the sliding tube 302 in contact with the annular push plate 3013 to move in the same direction and at the same distance.

[0041] In an optional embodiment of the invention, such as Figure 2 , Figure 4, Figures 6-7 As shown, the telescopic circumferential spraying assembly includes several sliding tubes 302 and 303 arranged sequentially from the outside to the inside, a limiting ring 3021 connected to the outer wall of one end of the sliding tube 302, a spring 3022 fixedly connected to the inner wall of the sliding tube 302, an annular push plate 2 fixedly connected to the other end of the spring 3022, several spray holes 3020 on the sliding tube 302, several spray holes 3030 on the sliding tube 303, and a limiting ring 2 fixedly connected to the outer wall of the sliding tube 303. The several sliding tubes 302 and 303 are coaxially arranged, the several spray holes 3020 are evenly distributed on the sliding tube 302, and the several spray holes 3030 are evenly distributed on the sliding tube 303.

[0042] The fixed-point spraying assembly includes a directional nozzle 304 connected to the output end of the sliding tube 2 303 and a plurality of spray holes 3040 provided on the directional nozzle 304. The channels of the spray holes 3040 are all distributed sequentially along the central axis of the sliding tube 2 303.

[0043] It should be noted that, as described above, when the locking mechanism 4 is in the unlocked state, as the second spring 3011 inside the fixed tube 301 resets, the third spring 3022 inside each sliding tube 302 also begins to reset, pushing the corresponding limiting ring and the corresponding sliding tube 302 or sliding tube 303 to move in the same direction and at the same distance. With the complete reset of the second spring 3011 and the third spring 3022, all sliding tubes 302 extend out from the outer sliding tube 302 to... The second sliding tube 303 extends from the first sliding tube 302. The first spray hole 3020 and the second spray hole 3030 on the first sliding tube 302 and the second sliding tube 303 are all in a conductive state. At this time, water can be sprayed out from the first spray hole 3020 and the second spray hole 3030. As the first sliding tube 302 and the second sliding tube 303 rotate, the water can be sprayed along the circumferential rotation path, thereby forming a uniform spray of a cylindrical area, which makes the irrigation more efficient.

[0044] In an optional embodiment of the invention, such as Figure 6 As shown, the hydraulic rotation mechanism includes a second connecting rod 501, a guide column 502 connected to the second connecting rod 501, and several blades 503 connected to the outer wall of the guide column 502. The several second connecting rods 501 are respectively connected to several first sliding tubes 302 and one second sliding tube 303.

[0045] It should be noted that, as mentioned above, when the water flows through the hydraulic rotating mechanism, the water flow can drive the blade 503 to rotate around the central axis of the guide column 502, and during the rotation, it will drive the guide column 502 and the connecting rod 2 501 to rotate. The connecting rod 2 501 is connected to the corresponding sliding tube 1 302 or sliding tube 2 303, so the connecting rod 2 501 can drive the sliding tube 1 302 or sliding tube 2 303 to rotate in the same direction and at the same angle.

[0046] In an optional embodiment of the invention, such as Figure 3 and Figure 7 As shown, the locking mechanism 4 includes a locking component 41 fixedly connected to the three-way guide tube 101 and a movable connecting component 42 connected to the sliding tube 303. The movable connecting component 42 and the locking component 41 are detachably connected.

[0047] The locking assembly 41 includes a locking rod 4101 fixedly connected to the spring 107 and a threaded portion 4102 provided at the other end of the locking rod 4101. The length of the locking rod 4101 is greater than the length of the fixing tube 301.

[0048] The movable connection assembly 42 includes a fixed ring body 4201 fixedly connected to the outer wall of the sliding tube 303, a movable collar 4202 movably connected to the fixed ring body 4201, a connecting rod 4203 connected to the movable collar 4202, an annular base 4204 fixedly connected to the other end of the connecting rod 4203, and a movable nut 4205 movably connected to the annular base 4204. The annular base 4204 and the movable nut 4205 are both matched with the threaded portion 4102.

[0049] It should be noted that, as mentioned above, when the locking mechanism 4 is in the locked state, the movable nut 4205 is threadedly locked to the threaded portion 4102 on the locking rod 4101. Without external force rotation, the movable nut 4205 is stably connected to the locking rod 4101. The movable nut 4205 can limit the annular base 4204, connecting rod 1 4203, movable collar 4202, and fixed ring 2 4201 to the same position. The fixed ring 2 4201 is fixedly connected to the sliding tube 2 303, so the same limiting force can be applied to the sliding tube 2 303, thereby restricting the reset of multiple springs 2 3011 and spring 3 3022. When the locked state is released, the movable nut 4205 can be unscrewed from the threaded portion 4102 on the locking rod 4101.

[0050] In an optional embodiment of the present invention, the connecting rod 4203 includes a hollow sleeve fixedly connected to the movable collar 4202 and a threaded rod threadedly connected to the hollow sleeve. The movable collar 4202 is provided with a through hole that mates with the hollow sleeve. The length of the threaded rod is greater than the length of the hollow sleeve. The annular base 4204 is fixedly connected to the threaded rod.

[0051] It should be noted that, in order to prevent the annular base 4204 and the movable nut 4205 from rotating with the sliding tube 303 in an unrestricted state and to reduce their probability of contact with the plants during spraying, the threaded rod can be rotated to pass through the movable collar 4202 and press against the fixed ring 4201, thereby limiting and fixing the movable collar 4202 to the fixed ring 4201. This allows the length of the connecting rod 4203 to be minimized and prevents it from moving irregularly, so that the entire movable connecting assembly 42 can be stably limited on the sliding tube 303.

[0052] The above description of this embodiment is not limited to the specific implementation described above. The specific implementation described above is merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this embodiment, all of which are within the protection scope of this embodiment.

Claims

1. A rotary spray gun for irrigation equipment, characterized in that, include: The manual control mechanism (1) has a hose (2) and a telescopic spraying mechanism (3) connected to its input and output ends respectively. The manual control mechanism (1) is used to adjust the flow rate of the liquid output from the hose (2) to the telescopic spraying mechanism (3). The telescopic spraying mechanism (3) is used to spray the liquid output from the hose (2) to a set area. The telescopic spraying mechanism (3) includes a fixed sealing base assembly, a telescopic circumferential spraying assembly disposed in the fixed sealing base assembly, and a fixed-point spraying assembly connected to the other end of the telescopic spraying assembly. The fixed sealing base assembly, the telescopic circumferential spraying assembly, and the fixed-point spraying assembly are all coaxially arranged. The telescopic circumferential spraying assembly is used to uniformly spray the liquid output from the hose (2) around its own radial direction. The fixed-point spraying assembly is used to uniformly spray the liquid output from the hose (2) along its own central axis direction. Several hydraulic rotating mechanisms are evenly connected inside the telescopic circumferential spraying assembly, and each of the several hydraulic rotating mechanisms is used to drive the telescopic circumferential spraying assembly to rotate around its own central axis. Locking mechanism (4), the locking mechanism (4) is used to adjust the length of the telescopic circumferential spraying assembly; The fixed sealing base assembly includes a fixed tube (301), a fixed ring body one (3010) fixedly connected to the inner wall of the fixed tube (301), a spring two (3011) connected to the fixed ring body one (3010), and an annular push plate one (3013) fixedly connected to the other end of the spring two (3011). The telescopic circumferential spraying assembly includes several sliding tubes 1 (302) and 2 (303) arranged sequentially from the outside to the inside, a limiting ring 1 (3021) connected to the outer wall of one end of sliding tube 1 (302), a spring 3 (3022) fixedly connected to the inner wall of sliding tube 1 (302), an annular push plate 2 fixedly connected to the other end of spring 3 (3022), and several spray holes provided on sliding tube 1 (302). A (3020), a plurality of spray holes 2 (3030) provided on the sliding tube 2 (303) and a limiting ring body 2 fixedly connected to the outer wall of the sliding tube 2 (303), the plurality of sliding tubes 1 (302) and the sliding tube 2 (303) are coaxially arranged, the plurality of spray holes 1 (3020) are evenly distributed on the sliding tube 1 (302), and the plurality of spray holes 2 (3030) are evenly distributed on the sliding tube 2 (303); The fixed-point spraying assembly includes a directional nozzle (304) connected to the output end of the sliding tube (303) and a plurality of spray holes (3040) provided on the directional nozzle (304). The channels of the spray holes (3040) are all distributed sequentially along the central axis of the sliding tube (303).

2. The rotary spray gun for irrigation equipment according to claim 1, characterized in that, The manual control mechanism (1) includes a three-way guide tube (101), a central grip (102) detachably connected to the input end of the three-way guide tube (101), a hinge frame (103) connected to the outer wall of the three-way guide tube (101), a pressing handle (104) hinged to the hinge frame (103), a plug (105) connected to the pressing handle (104), a spring (107) detachably connected to the control port of the three-way guide tube (101), and an auxiliary seal (106) connected inside the three-way guide tube (101). A sealing cap (108) is connected between spring 1 (107) and plug (105). The other end of the plug (105) passes through spring 1 (107) and sealing cap (108) in sequence and is inserted into auxiliary sealing member (106). The auxiliary sealing member (106) is matched with the plug (105). When a gap is generated between the plug (105) and auxiliary sealing member (106), the input end and output end of the three-way guide tube (101) are connected. The hose (2) is detachably connected to the other end of the through handle (102).

3. A rotary spray gun for irrigation equipment according to claim 2, characterized in that, One end of the fixed tube (301) is detachably connected to the output end of the three-way guide tube (101), and the other end of the fixed tube (301) is provided with an annular seal (3012).

4. A rotary spray gun for irrigation equipment according to claim 3, characterized in that, The hydraulic rotation mechanism includes a second connecting rod (501), a guide column (502) connected to the second connecting rod (501), and several blades (503) connected to the outer wall of the guide column (502). Several second connecting rods (501) are respectively connected to several first sliding tubes (302) and one second sliding tube (303).

5. A rotary spray gun for irrigation equipment according to claim 4, characterized in that, The locking mechanism (4) includes a locking component (41) fixedly connected to the three-way guide tube (101) and a movable connecting component (42) connected to the sliding tube (303), wherein the movable connecting component (42) and the locking component (41) are detachably connected.

6. A rotary spray gun for irrigation equipment according to claim 5, characterized in that, The locking assembly (41) includes a locking rod (4101) fixedly connected to a spring (107) and a threaded portion (4102) provided at the other end of the locking rod (4101), the length of which is greater than the length of the fixing tube (301).

7. A rotary spray gun for irrigation equipment according to claim 6, characterized in that, The movable connecting assembly (42) includes a fixed ring body two (4201) fixedly connected to the outer wall of the sliding tube two (303), a movable collar (4202) movably connected to the fixed ring body two (4201), a connecting rod one (4203) connected to the movable collar (4202), an annular base (4204) fixedly connected to the other end of the connecting rod one (4203), and a movable nut (4205) movably connected to the annular base (4204). The annular base (4204) and the movable nut (4205) are both matched with the threaded part (4102).

8. A rotary spray gun for irrigation equipment according to claim 7, characterized in that, The connecting rod (4203) includes a hollow sleeve fixedly connected to the movable collar (4202) and a threaded rod threadedly connected to the hollow sleeve. The movable collar (4202) is provided with a through hole that matches the hollow sleeve. The length of the threaded rod is greater than the length of the hollow sleeve. The annular base (4204) is fixedly connected to the threaded rod.

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