Angle adjustment structure of spray rod nozzle

Abstract

The present invention belongs to the technical field of sprayers. It solves the problem that the angle adjustment operation of a spray rod nozzle in the prior art is time-consuming and laborious. An angle adjustment structure of a spray rod nozzle is provided, comprising a mounting bracket arranged on the spray rod and a rotating bracket arranged on the nozzle, two positioning bosses located on the rotating arm of the rotating bracket are respectively inserted into positioning holes on the mounting arm of the mounting bracket on the same side, the inner side wall of the elastic block on the hole wall of the positioning hole has a positioning portion protruding along the radial direction of the positioning boss, the outer side wall of the elastic block and the hole wall of the positioning hole have a swinging spacing, the side wall of the positioning boss has a plurality of positioning grooves arranged at intervals along the circumferential direction, the positioning portion is supported on the groove wall of the positioning groove so that the rotating bracket is locked on the mounting bracket, and under the action of external force, the positioning portion can be separated from the positioning groove so that the rotating bracket can rotate relative to the mounting bracket. The present invention has the advantage that the nozzle can be turned and stopped as the external force of the user is applied or removed.

Description

Technical Field

[0001] The invention belongs to the technical field of sprayers and relates to an angle adjustment structure of a spray rod nozzle. Background Art

[0002] A sprayer is a device that uses air suction to turn medicine or other liquids into mist and sprays them evenly onto other objects. It is widely used in the prevention and control of crop pests and diseases, sanitation and disinfection, etc. The nozzles of the spray rods of existing sprayers are generally tilted to one side or set vertically and cannot be adjusted in angle, making the spray direction of the sprayer relatively single. When spraying at different angles is required, the operator needs to move the entire sprayer or manually shake the spray rod to drive the nozzle to spray at multiple angles, which is time-consuming and laborious. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems in the existing technology and propose an angle adjustment structure for the spray rod nozzle. The technical problem to be solved by the present invention is to solve the problem that the existing spray rod nozzle cannot be adjusted individually.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] An angle adjustment structure for a spray rod nozzle, characterized in that it comprises a mounting bracket arranged on the spray rod and a rotating bracket arranged on the nozzle, wherein the mounting bracket has two mounting arms arranged oppositely, and the rotating bracket has two rotating arms arranged oppositely;

[0006] The rotating arm has a positioning boss, and the mounting arm has a positioning hole, or the mounting arm has a positioning boss, and the rotating arm has a positioning hole;

[0007] The two positioning bosses are respectively inserted into the positioning holes on the same side, and the hole wall of the positioning hole is provided with a plurality of elastic blocks arranged along the circumferential direction, and the inner side wall of the elastic block is provided with a positioning portion protruding radially along the positioning boss, and there is a swinging spacing between the outer side wall of the elastic block and the hole wall of the positioning hole, and the side wall of the positioning boss is provided with a plurality of positioning grooves arranged at intervals along the circumferential direction, and the positioning portion is supported on the groove wall of the positioning groove so that the rotating bracket is locked on the mounting bracket, and under the action of external force, the positioning portion can be separated from the positioning groove so that the rotating bracket can rotate relative to the mounting bracket.

[0008] When the angle of the nozzle needs to be adjusted, the user only needs to turn the nozzle clockwise or counterclockwise. When the angle of the nozzle is adjusted to the right position, the user only needs to release the nozzle. The nozzle can stop and turn as the user applies or removes external force. In addition, there will be a "click-click-click" sound and feel while rotating. It not only solves the problem that the nozzle of the existing spray rod cannot be adjusted at an angle independently, but also provides a good rotation experience.

[0009] Specifically, when the positioning boss is set on the rotating arm, when the angle of the nozzle needs to be adjusted, the user only needs to rotate the nozzle clockwise or counterclockwise. Under the external force applied by the user, the nozzle, the two rotating arms on the rotating bracket and the positioning boss rotate synchronously. Because the elastic card block can be elastically deformed along the radial direction of the positioning hole wall, and there is a swinging distance between the outer wall of the elastic card block and the hole wall of the positioning hole, the positioning boss will force the elastic card block on the hole wall of the positioning hole to swing back and forth between the positioning boss and the hole wall of the positioning hole when it rotates, so that the positioning boss can rotate smoothly under the external force applied by the user. The positioning boss can be moved, and the side wall of the positioning boss is provided with a plurality of positioning grooves spaced along the circumferential direction. The side of the elastic block facing the positioning boss is provided with a raised positioning portion, and the positioning portion can be embedded in the positioning groove, so the positioning boss can have a "click-click-click" sound and feel while rotating; when the angle of the nozzle is adjusted to the right position, the user only needs to release the nozzle, and the external force applied to the nozzle by the user is removed, and the positioning portion of the elastic block can be re-embedded in the positioning groove. At this time, a plurality of elastic blocks can jointly clamp the positioning boss to lock the rotating bracket on the mounting bracket, thereby locking the nozzle and the spray rod.

[0010] In the above-mentioned angle adjustment structure of a spray rod nozzle, the elastic block is in the shape of a long strip, and the elastic block is extended along the circumference of the positioning protrusion, and the inner side wall of the elastic block is set as an arc-shaped support surface, and the arc-shaped support surfaces on several elastic blocks are located on the same cylindrical surface. By setting the inner side wall of the elastic block as an arc-shaped support surface, and the arc-shaped support surfaces on several elastic blocks are located on the same cylindrical surface, there is a gap between the arc-shaped support surface and the positioning protrusion, which facilitates the rotation of the rotating bracket. When too much force is applied, the deformation of the elastic block increases so that the inner side wall of the elastic block can be supported on the positioning protrusion, increasing the resistance of the rotating bracket to rotation, so as to better achieve stop-and-go, and produce a "da da da" sound and feel, that is, the above structure enables the elastic block to better clamp the positioning protrusion together, and at the same time, it can better elastically deform and release the positioning protrusion under the action of external force.

[0011] In the above-mentioned angle adjustment structure of a spray rod nozzle, the positioning groove is extended along the axial direction of the positioning boss, and the two ends of the positioning groove are open and extend to the two ends of the positioning boss respectively. When the positioning boss is set on the rotating arm, the thickness of the mounting arm is consistent with the length of the positioning boss, or when the positioning boss is set on the mounting arm, the thickness of the rotating arm is consistent with the length of the positioning boss. The above structure enables the two positioning bosses to be better installed in or out of the two positioning holes at the same time, and disassembly and assembly are more convenient. Specifically, during disassembly and assembly, when the positioning boss is set on the outer side wall of the rotating arm or the inner side wall of the mounting arm, it is only necessary to open the two mounting arms of the mounting bracket; when the positioning boss is set on the inner side wall of the rotating arm or the outer side wall of the mounting arm, it is only necessary to open the two rotating arms of the rotating bracket.

[0012] In the above-mentioned angle adjustment structure of a spray rod nozzle, the cross section of the positioning groove is trapezoidal, the elastic block is evenly distributed along the circumference of the positioning hole wall, the positioning groove is spaced and evenly distributed along the circumference of the positioning boss, and a raised blocking portion is formed between two adjacent positioning grooves, and the top of the blocking portion and the bottom of the positioning portion are both arc-shaped. The blocking portion can prevent the elastic block from detaching from the positioning groove by itself, and at the same time, the top of the blocking portion and the positioning portion are respectively set to an arc shape, and by setting the cross section of the positioning groove to an isosceles trapezoidal shape, the positioning groove has a structure that is larger at the top and smaller at the bottom, so that under the action of external force, the elastic block is easier to detach from and enter the positioning groove.

[0013] In the above-mentioned angle adjustment structure of a spray rod nozzle, the nozzle is provided with a nozzle and a partition cavity arranged along the width direction of the nozzle, the side walls of the partition cavity respectively have a liquid inlet connected to the spray rod and a liquid outlet connected to the nozzle, the liquid outlet and the liquid inlet are arranged oppositely, a plug is inserted in the partition cavity, the plug has a liquid inlet channel for connecting the liquid inlet and the liquid outlet, and the flow rate of liquid flowing from the liquid inlet through the liquid inlet channel into the liquid outlet can be adjusted by rotating the plug. The user only needs to rotate the plug to adjust the flow rate of liquid flowing from the liquid inlet through the liquid inlet channel into the liquid outlet, which has a simple structure and is easy to use.

[0014] In the above-mentioned angle adjustment structure of a spray rod nozzle, a guide groove is circumferentially arranged on the opening edge of the partition cavity, the plug extends out of the partition cavity and a guide block is arranged at the extended portion, the guide block is embedded in the guide groove, and when the guide block is located at one end of the guide groove, the line connecting the centers of the liquid inlet and the liquid outlet is parallel to the central axis of the liquid inlet channel, and when the guide block is located at the other end of the guide groove, the line connecting the centers of the liquid inlet and the liquid outlet is perpendicular to the central axis of the liquid inlet channel. The user only needs to turn the plug, and the groove wall of the guide groove cooperates with the guide block on the plug to play a guiding limit role, so that it is more convenient to adjust the liquid flow from the liquid inlet through the liquid inlet channel to the liquid outlet, and when the guide blocks on the plug are located at the two ends of the guide groove, the liquid flow from the liquid inlet through the liquid inlet channel to the liquid outlet is in the maximum and minimum states respectively.

[0015] In the above-mentioned angle adjustment structure of a spray rod nozzle, the rotating bracket has a liquid inlet nozzle located at the edge of the liquid inlet, and the mounting bracket has a connecting nozzle connected to the spray rod. The connecting nozzle and the liquid inlet nozzle are connected by a hose, and a spring is arranged in the hose, and the two ends of the spring are respectively abutted against the connecting nozzle and the liquid inlet nozzle. The connecting nozzle and the liquid inlet nozzle are connected by a hose, so that the nozzle can rotate better. At the same time, a spring is arranged in the hose. On the first hand, the spring can support the hose, so that the hose can better maintain its stiffness, which is conducive to the flow of the liquid medicine. On the second hand, when the hose is subjected to internal or external pressure, the spring can absorb part of the impact force, thereby protecting the hose. On the third hand, when the nozzle rotates, the hose needs to be bent frequently, and the spring in the hose can absorb the stress caused by frequent bending, thereby further protecting the hose.

[0016] In the above-mentioned angle adjustment structure of a spray rod nozzle, a filter screen is arranged inside the nozzle, a locking sleeve having a clamping portion is threadedly connected to the outer wall of the nozzle, and the clamping portion of the locking sleeve can clamp and fix the nozzle on the nozzle. The above-mentioned structure can realize the quick disassembly and assembly between the nozzle and the nozzle, and also facilitates the disassembly and assembly of the filter screen.

[0017] In the above-mentioned angle adjustment structure of a spray rod nozzle, the inner wall of the nozzle has a step portion, the edge of the filter screen abuts against the step portion, and a sealing ring 1 is provided between the nozzle and the nozzle, one side of the sealing ring 1 abuts against the nozzle, and the other side of the sealing ring 1 abuts against the edges of the nozzle and the filter screen at the same time. The provision of the sealing ring 1 can prevent leakage at the connection between the nozzle and the nozzle, and on the other hand, it also enables the nozzle to press the edge of the filter screen against the step portion of the nozzle to prevent the filter screen from shaking.

[0018] In the above-mentioned angle adjustment structure of a spray rod nozzle, a fastening sleeve and a second sealing ring are sequentially sleeved on the spray rod, a fixing sleeve is sleeved on the fastening sleeve, the mounting bracket is threadedly connected to the fixing sleeve, and two sides of the second sealing ring are respectively abutted against the mounting bracket and the fastening sleeve. The above-mentioned structure can realize the rapid disassembly and assembly of the spray rod and the mounting bracket, and is more convenient to use.

[0019] Compared with the existing technology, the advantage of the angle adjustment structure of the spray rod nozzle is that when the angle of the nozzle needs to be adjusted, the user only needs to rotate the nozzle clockwise or counterclockwise. When the angle of the nozzle is adjusted to the right position, the user only needs to release the nozzle. The nozzle can stop and turn as the user applies or removes external force. In addition, there will be a "click-click-click" sound and feel while rotating. It can not only solve the problem that the nozzle of the existing spray rod cannot be adjusted at an angle independently, but also provides a good rotation experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the angle adjustment structure of the spray rod nozzle.

[0021] Figure 2 It is a structural schematic diagram of the angle adjustment structure of the spray rod nozzle when viewed from the front.

[0022] Figure 3 yes Figure 2 Cross-sectional view at AA in the middle.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the angle adjustment structure of the spray rod nozzle after the nozzle is rotated and adjusted.

[0024] Figure 5 It is a schematic diagram of the local structure of the angle adjustment structure of the spray rod nozzle after the nozzle is rotated and adjusted and exploded.

[0025] Figure 6 It is a schematic diagram of the partial three-dimensional structure of the angle adjustment structure of the spray rod nozzle after the nozzle is rotated and adjusted and exploded.

[0026] In the figure, 1, spray rod; 2, mounting bracket; 2a, mounting arm; 2b, connecting nozzle; 3, nozzle; 3a, rotating bracket; 3a1, rotating arm; 3a2, liquid inlet nozzle; 3b, partition cavity; 3b1, liquid inlet; 3b2, liquid outlet; 3c, guide groove; 3d, step portion; 4, positioning boss; 4a, positioning groove; 5, positioning hole; 5a, elastic block; 5a1, positioning portion; 6, swing spacing; 7, blocking portion; 8, nozzle; 9, plug; 9a, liquid inlet channel; 9b, guide block; 10, hose; 11, spring; 12, filter; 13, locking sleeve; 13a, pressing portion; 14, sealing ring 1; 15, fastening sleeve; 16, sealing ring 2; 17, fixing sleeve. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0028] Embodiment 1

[0029] An angle adjustment structure of a spray rod nozzle, referring to Figure 1-6 , comprising a mounting bracket 2 arranged on the spray rod 1 and a rotating bracket 3a arranged on the spray head 3, the mounting bracket 2 having two mounting arms 2a arranged oppositely, the rotating bracket 3a having two rotating arms 3a1 arranged oppositely, the rotating arms 3a1 having positioning bosses 4, the mounting arms 2a having positioning holes 5, it should be noted that, according to actual use requirements, the positioning bosses 4 can be arranged on the inner side wall or the outer side wall of the rotating arm 3a1;

[0030] The two positioning bosses 4 are respectively inserted into the positioning holes 5 on the same side. The hole wall of the positioning hole 5 has a plurality of elastic blocks 5a arranged along the circumferential direction. The inner side wall of the elastic block 5a is set as an arc-shaped supporting surface and has a raised positioning portion 5a1. There is a swing spacing 6 between the outer side wall of the elastic block 5a and the hole wall of the positioning hole 5. The side wall of the positioning boss 4 has a plurality of positioning grooves 4a arranged at intervals along the circumferential direction. The positioning portion 5a1 is embedded in the positioning groove 4a to lock the rotating bracket 3a on the mounting bracket 2, and under the action of external force, the positioning portion 5a1 can be separated from the positioning groove 4a to allow the rotating bracket 3a to rotate relative to the mounting bracket 2.

[0031] Specifically, refer to Figure 1-6 The elastic block 5a is in the shape of an elongated strip and is extended along the circumference of the positioning boss 4. The inner side wall of the elastic block 5a is set as an arc-shaped supporting surface, and the arc-shaped supporting surfaces on several elastic blocks 5a are located on the same cylindrical surface.

[0032] Further, refer to Figure 1-6 The positioning groove 4a is extended along the axial direction of the positioning boss 4, and the two ends of the positioning groove 4a are open and extend to the two ends of the positioning boss 4 respectively. When the positioning boss 4 is set on the rotating arm 3a1, the thickness of the mounting arm 2a is consistent with the length of the positioning boss 4, or when the positioning boss 4 is set on the mounting arm 2a, the thickness of the rotating arm 3a1 is consistent with the length of the positioning boss 4.

[0033] In this embodiment, the cross-section of the positioning groove 4a is preferably trapezoidal, the elastic block 5a is evenly distributed along the circumference of the wall of the positioning hole 5, the positioning grooves 4a are spaced and evenly distributed along the circumference of the positioning boss 4, and a raised blocking portion 7 is formed between two adjacent positioning grooves 4a, and the top end of the blocking portion 7 and the bottom end of the positioning portion 5a1 are both arc-shaped.

[0034] More specifically, refer to Figure 1-6 The nozzle 3 is provided with a nozzle 8 and a partition cavity 3b arranged along the width direction of the nozzle 3, and the side walls of the partition cavity 3b respectively have a liquid inlet 3b1 connected to the spray rod 1 and a liquid outlet 3b2 connected to the nozzle 8, and the liquid outlet 3b2 and the liquid inlet 3b1 are arranged opposite to each other. A plug 9 is inserted into the partition cavity 3b, and the plug 9 has a liquid inlet channel 9a for connecting the liquid inlet 3b1 and the liquid outlet 3b2, and the liquid flow rate flowing from the liquid inlet 3b1 through the liquid inlet channel 9a into the liquid outlet 3b2 can be adjusted by rotating the plug 9.

[0035] Further, refer to Figure 1-6 A guide groove 3c is circumferentially arranged on the opening edge of the partition cavity 3b, the plug 9 extends out of the partition cavity 3b and is provided with a guide block 9b at the extended portion, the guide block 9b is embedded in the guide groove 3c, and when the guide block 9b is located at one end of the guide groove 3c, the line connecting the centers of the liquid inlet 3b1 and the liquid outlet 3b2 is parallel to the central axis of the liquid inlet channel 9a, and when the guide block 9b is located at the other end of the guide groove 3c, the line connecting the centers of the liquid inlet 3b1 and the liquid outlet 3b2 is perpendicular to the central axis of the liquid inlet channel 9a.

[0036] Furthermore, refer to Figure 1-6 The rotating bracket 3a has a liquid inlet nozzle 3a2 located at the edge of the liquid inlet port 3b1, and the mounting bracket 2 has a connecting nozzle 2b connected to the spray rod 1. The connecting nozzle 2b and the liquid inlet nozzle 3a2 are connected through a hose 10. A spring 11 is arranged in the hose 10, and the two ends of the spring 11 are respectively abutted against the connecting nozzle 2b and the liquid inlet nozzle 3a2.

[0037] More specifically, refer to Figure 1-6, a filter screen 12 is arranged inside the nozzle 3, a locking sleeve 13 having a pressing portion 13a is threadedly connected to the outer wall of the nozzle 3, and the pressing portion 13a of the locking sleeve 13 can press and fix the nozzle 8 on the nozzle 3. A step portion 3d is arranged on the inner wall of the nozzle 3, and the edge of the filter screen 12 abuts against the step portion 3d. A sealing ring 14 is arranged between the nozzle 3 and the nozzle 8, one side of the sealing ring 14 abuts against the nozzle 8, and the other side of the sealing ring 14 abuts against the edges of the nozzle 3 and the filter screen 12 at the same time; a fastening sleeve 15 and a second sealing ring 16 are sequentially sleeved on the spray rod 1, and a fixing sleeve 17 is sleeved on the fastening sleeve 15, and the mounting bracket 2 is threadedly connected to the fixing sleeve 17, and the two sides of the second sealing ring 16 abut against the mounting bracket 2 and the fastening sleeve 15 respectively.

[0038] The following describes the working principle of the angle adjustment structure of the spray rod nozzle:

[0039] When the angle of the nozzle 3 needs to be adjusted, the user only needs to rotate the nozzle 3 clockwise or counterclockwise. Under the external force applied by the user, the nozzle 3, the two rotating arms 3a1 on the rotating bracket 3a and the positioning boss 4 rotate synchronously. Because the elastic block 5a can be elastically deformed along the radial direction of the hole wall of the positioning hole 5, and there is a swing spacing 6 between the outer wall of the elastic block 5a and the hole wall of the positioning hole 5, the positioning boss 4 will force the elastic block 5a on the hole wall of the positioning hole 5 to swing back and forth between the positioning boss 4 and the hole wall of the positioning hole 5 while rotating, so that the positioning boss 4 can rotate smoothly under the external force applied by the user, and the side wall of the positioning boss 4 has a plurality of positioning grooves 4a arranged at intervals along the circumferential direction, and the side of the elastic block 5a facing the positioning boss 4 has a raised positioning portion 5a1, and the positioning portion 5a1 can be embedded in the positioning groove 4a, so the positioning boss 4 will have a "click" sound and feel while rotating.

[0040] When the angle of the nozzle 3 is adjusted to the right position, the user only needs to release the nozzle 3, and the external force applied to the nozzle 3 by the user is removed, and the positioning portion 5a1 of the elastic block 5a can be re-embedded in the positioning groove 4a. At this time, multiple elastic blocks 5a can jointly clamp the positioning boss 4 to lock the rotating bracket 3a on the mounting bracket 2, thereby locking the nozzle 3 and the spray rod 1.

[0041] Embodiment 2

[0042] The structure and principle of this embodiment are basically the same as those of the first embodiment, the difference being that the positioning boss 4 is arranged on the mounting arm 2a, and the positioning hole 5 is arranged on the rotating arm 3a1 (not shown in the figure). In this embodiment, the thickness of the rotating arm 3a1 is preferably consistent with the length of the positioning boss 4.

[0043] It should be noted that, according to actual use requirements, the positioning boss can be set on the inner wall or the outer wall of the mounting arm 2a.

[0044] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An angle adjustment structure for a spray rod nozzle, characterized in that: It comprises a mounting bracket (2) arranged on a spray rod (1) and a rotating bracket (3a) arranged on a spray head (3), wherein the mounting bracket (2) has two mounting arms (2a) arranged opposite to each other, and the rotating bracket (3a) has two rotating arms (3a1) arranged opposite to each other; The rotating arm (3a1) has a positioning boss (4), and the mounting arm (2a) has a positioning hole (5), or the mounting arm (2a) has a positioning boss (4), and the rotating arm (3a1) has a positioning hole (5); Two positioning bosses (4) are respectively inserted into the positioning holes (5) on the same side; the hole wall of the positioning hole (5) has a plurality of elastic blocks (5a) arranged along the circumferential direction; the inner wall of the elastic block (5a) has a positioning portion (5a1) protruding along the radial direction of the positioning boss (4); a swing spacing (6) is provided between the outer wall of the elastic block (5a) and the hole wall of the positioning hole (5); the side wall of the positioning boss (4) has a plurality of positioning grooves (4a) arranged at intervals along the circumferential direction; the positioning portion (5a1) is supported on the groove wall of the positioning groove (4a) so that the rotating bracket (3a) is locked on the mounting bracket (2); and under the action of an external force, the positioning portion (5a1) can be separated from the positioning groove (4a) so that the rotating bracket (3a) rotates relative to the mounting bracket (2).

2. The angle adjustment structure of the spray rod nozzle according to claim 1, characterized in that: The elastic clamping block (5a) is in the shape of an elongated strip and is arranged to extend along the circumference of the positioning boss (4). The inner side wall of the elastic clamping block (5a) is arranged as an arc-shaped supporting surface, and the arc-shaped supporting surfaces on a plurality of elastic clamping blocks (5a) are located on the same cylindrical surface.

3. The angle adjustment structure of the spray rod nozzle according to claim 1, characterized in that: The positioning groove (4a) is arranged to extend along the axial direction of the positioning boss (4), and both ends of the positioning groove (4a) are open and extend to both ends of the positioning boss (4) respectively; When the positioning boss (4) is arranged on the rotating arm (3a1), the thickness of the mounting arm (2a) is consistent with the length of the positioning boss (4); or when the positioning boss (4) is arranged on the mounting arm (2a), the thickness of the rotating arm (3a1) is consistent with the length of the positioning boss (4).

4. The angle adjustment structure of the spray rod nozzle according to claim 1, characterized in that: The cross section of the positioning groove (4a) is trapezoidal in shape, the elastic blocks (5a) are evenly distributed along the circumference of the hole wall of the positioning hole (5), the positioning grooves (4a) are spaced and evenly distributed along the circumference of the positioning protrusion (4), a raised blocking portion (7) is formed between two adjacent positioning grooves (4a), and the top end of the blocking portion (7) and the bottom end of the positioning portion (5a1) are both arc-shaped.

5. The angle adjustment structure of the spray rod nozzle according to any one of claims 1 to 4, characterized in that: The nozzle (3) is provided with a nozzle (8) and a partition cavity (3b) arranged along the width direction of the nozzle (3); the side walls of the partition cavity (3b) respectively have a liquid inlet (3b1) connected to the spray rod (1) and a liquid outlet (3b2) connected to the nozzle (8); the liquid outlet (3b2) and the liquid inlet (3b1) are arranged opposite to each other; a plug (9) is inserted into the partition cavity (3b); the plug (9) has a liquid inlet channel (9a) for connecting the liquid inlet (3b1) and the liquid outlet (3b2); and the flow rate of liquid flowing from the liquid inlet (3b1) through the liquid inlet channel (9a) into the liquid outlet (3b2) can be adjusted by rotating the plug (9).

6. The angle adjustment structure of the spray rod nozzle according to claim 5, characterized in that: A guide groove (3c) is circumferentially arranged on the upper edge of the opening of the partition cavity (3b); the plug (9) protrudes from the partition cavity (3b) and a guide block (9b) is arranged at the protruding portion; the guide block (9b) is embedded in the guide groove (3c); when the guide block (9b) is located at one end of the guide groove (3c), a line connecting the centers of the liquid inlet (3b1) and the liquid outlet (3b2) is parallel to the central axis of the liquid inlet channel (9a); when the guide block (9b) is located at the other end of the guide groove (3c), a line connecting the centers of the liquid inlet (3b1) and the liquid outlet (3b2) is perpendicular to the central axis of the liquid inlet channel (9a).

7. The angle adjustment structure of the spray rod nozzle according to claim 5, characterized in that: The rotating bracket (3a) has a liquid inlet nozzle (3a2) located at the edge of the liquid inlet port (3b1), and the mounting bracket (2) has a connecting nozzle (2b) connected to the spray rod (1), the connecting nozzle (2b) and the liquid inlet nozzle (3a2) are connected via a hose (10), a spring (11) is provided in the hose (10), and two ends of the spring (11) are respectively abutted against the connecting nozzle (2b) and the liquid inlet nozzle (3a2).

8. The angle adjustment structure of the spray rod nozzle according to claim 5, characterized in that: A filter screen (12) is provided in the nozzle (3), and a locking sleeve (13) having a pressing portion (13a) is threadedly connected to the outer wall of the nozzle (3), and the pressing portion (13a) of the locking sleeve (13) can press and fix the nozzle (8) on the nozzle (3).

9. The angle adjustment structure of the spray rod nozzle according to claim 8, characterized in that: The inner wall of the nozzle (3) has a step portion (3d), the edge of the filter (12) abuts against the step portion (3d), and a sealing ring (14) is provided between the nozzle (3) and the nozzle (8), one side of the sealing ring (14) abuts against the nozzle (8), and the other side of the sealing ring (14) abuts against the edges of the nozzle (3) and the filter (12) at the same time.

10. The angle adjustment structure of the spray rod nozzle according to claim 5, characterized in that: The spray rod (1) is sequentially sleeved with a fastening sleeve (15) and a second sealing ring (16); the fastening sleeve (15) is sleeved with a fixing sleeve (17); the mounting bracket (2) is threadedly connected to the fixing sleeve (17); and two sides of the second sealing ring (16) are respectively abutted against the mounting bracket (2) and the fastening sleeve (15).

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