Automatic spraying water cannon

Abstract

The utility model discloses an automatic spraying water cannon which is characterized in that a left-right rotating base and an up-down rotating base are arranged at the two ends of an S-shaped flow channel respectively, the left-right rotating base adjusts the direction of the S-shaped flow channel, and the up-down rotating base adjusts the direction of a multifunctional adjustable cannon head through an elbow joint; the adjustable spraying gun head comprises a gun barrel, an electric push rod and a movement assembly, the electric push rod is arranged on one side of the multifunctional adjustable gun head, a piston rod of the electric push rod drives the movement assembly to move through a transmission assembly, the movement assembly is matched with the outer diameter of the gun barrel and a center hole to form a linear reciprocating mechanism, and under the action of the electric push rod, the movement assembly is driven to move. The water outlet mode and the shape of the water outlet at the muzzle are changed, and the effects of direct injection, shower, deslagging and high-pressure mandrel spraying are achieved. The device has the advantages that the aging process of equipment is slowed down, a manual emergency mode is added, a sensor is added, the automatic circulating spraying effect is achieved, and a mandrel spraying mode is added.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitation vehicles and fire trucks, in particular to an automatic water spraying cannon. Background Art

[0002] The current product consists of a left-right rotating base, an S-shaped flow channel, a vertically rotating base, and an adjustable spray nozzle. Liquid flows from the base, through the S-shaped flow channel, and into the nozzle pipe. The nozzle's electric push rod drives the nozzle sleeve to move, changing the shape of the nozzle. The liquid in the nozzle is ejected under high pressure from the annular outlet around the nozzle core, creating a direct spray and shower effect.

[0003] The base rotates left and right, and the motor drives the entire gun body to rotate left and right. The base rotates up and down, and the motor drives the gun barrel to rotate up and down, so as to achieve the purpose of freely adjusting the up and down and left and right movement of the muzzle.

[0004] Existing products have the following disadvantages:

[0005] 1. No soft limit is set. Since the gun body cannot rotate 360 ​​degrees, if it is operated incorrectly, it is easy to break the power cord or burn the motor;

[0006] 2. There is no emergency manual mode. Since the worm gear is self-locking, if there is a motor failure or line failure, the entire device will be completely unusable;

[0007] 3. The center of gravity of the S-shaped main channel is too high. During operation, the liquid exerts a reverse force on the equipment, which generates a large radial thrust on the base structure under the action of the lever, which can easily damage the base rotating mechanism or motor;

[0008] 4. Without sensors, when using ordinary reduction motors, automatic cycle spraying cannot be achieved, and the degree of automation is low;

[0009] 5. The gun head has too few functions, insufficient muzzle pressure, and insufficient range. It cannot effectively clean compacted dirt and stains on the road surface. It cannot meet the requirements for scenarios that require a longer range.

[0010] 6. The existing equipment does not use professional seals, and the rotating structure is easily corroded by liquids, which accelerates the aging of the equipment. Utility Model Content

[0011] In view of the above-mentioned deficiencies in the prior art, the utility model provides an automatic water spraying cannon.

[0012] In order to achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model is:

[0013] An automatic water spraying cannon includes a left-right rotating base, an S-shaped flow channel, an up-down rotating base, and a multifunctional adjustable cannon head. The two ends of the S-shaped flow channel are respectively provided with a left-right rotating base and an up-down rotating base. The left-right rotating base adjusts the direction of the S-shaped flow channel, and the up-down rotating base adjusts the direction of the multifunctional adjustable cannon head through an elbow joint.

[0014] The adjustable spray gun head includes a barrel, an electric push rod and a motion component. An electric push rod is provided on one side of the multifunctional adjustable gun head. The piston rod of the electric push rod drives the motion component to move through the transmission component. The motion component cooperates with the outer diameter and center hole of the barrel to form a linear reciprocating motion mechanism. Under the action of the electric push rod, the water outlet pattern and the shape of the water outlet at the muzzle are changed to achieve direct injection, showering, slag discharge, and high-pressure core shaft spraying effects.

[0015] As an improvement, the motion component includes an outer sleeve, a gun core, a hollow core shaft, a replaceable nozzle, a preload spring, and a conical guide plug. The outer sleeve is arranged on the outside of the gun barrel, and a sealing gasket is provided at the opening of the gun barrel. The gun core is slidably connected to the gun barrel, and a hollow core shaft is provided through the center of the gun core. The gun core and the hollow core shaft are slidably connected. A replaceable nozzle is provided on the end of the hollow core shaft exposed from the gun core, and a conical guide plug is threadedly connected to the rear end of the hollow core shaft. A water inlet hole connected to the hollow core shaft is provided on the hollow core shaft, and a preload spring is provided between the gun core and the hollow core shaft. The piston rod of the electric push rod is connected to the outer sleeve through a transmission assembly, and the outer sleeve is connected to the hollow core shaft.

[0016] As an improvement, the motion component includes a pull rod, a gun core, a hollow core shaft, a replaceable nozzle, a preload spring, and a conical guide plug. The pull rod is arranged in the gun barrel and is slidably connected to the elbow joint. A sealing gasket is provided at the opening of the gun barrel. The gun core is slidably connected in the gun barrel. The pull rod is connected to the conical guide plug. A hollow core shaft is provided running through the center of the gun core. The gun core is slidably connected to the hollow core shaft. A replaceable nozzle is provided on the end of the hollow core shaft exposed from the gun core. The rear end of the hollow core shaft is threadedly connected to the conical guide plug. A water inlet hole connected to the hollow core shaft is provided on the hollow core shaft. A preload spring is provided between the gun core and the hollow core shaft. The piston rod of the electric push rod is connected to the pull rod through a transmission assembly, and the pull rod is connected to the conical guide plug.

[0017] As an improvement, the transmission assembly includes a mounting block, a transmission block, a connecting rod and an electric push rod. The electric push rod is connected to the elbow joint through the mounting block and the connecting rod, and the piston rod of the electric push rod is connected to the outer sleeve through the transmission block.

[0018] As an improvement, the transmission assembly includes a transmission block and an electric push rod, the electric push rod is fixed to the side of the barrel, and the piston rod of the electric push rod is connected to the pull rod through the transmission block.

[0019] As an improvement, the left-right rotating base includes a housing, a fixed base, a left-right rotating motor, a worm and a worm wheel. A fixed base is provided under the housing, a left-right rotating motor is provided on one side of the housing, a worm and a worm wheel are provided inside the housing, the left-right rotating motor drives the worm to rotate, the S-shaped flow channel and the housing are rotatably connected to the fixed base, the worm wheel is connected to the fixed base, an emergency manual joint is provided on the end of the worm away from the left-right rotating motor, the emergency manual joint is rotatably connected to the housing and exposed from the housing;

[0020] The up-and-down rotating base includes a housing, an up-and-down rotating motor, a worm and a worm wheel. The up-and-down rotating motor is provided on one side of the housing. The worm and the worm wheel are provided inside the housing. The worm and the worm wheel are meshed with each other. The up-and-down rotating motor drives the worm to rotate. The worm wheel is connected to an elbow joint, and the elbow joint is rotatably connected to the housing. An emergency manual joint is provided on one end of the worm away from the up-and-down rotating motor and is rotatably connected to the housing, and is exposed from the housing.

[0021] A sealing cover is sleeved on the outer side of the emergency manual joint.

[0022] As an improvement, a retaining spring is provided at the connection between the outer shell of the left and right rotating base and the fixed base, an oil seal and a sealing ring are provided at the connection between the left and right rotating base and the S-shaped flow channel, an oil seal is also provided at the connection between the worm and the housing, and bearings are provided between the two sides of the worm gear and the S-shaped flow channel and the fixed base;

[0023] A retaining spring is provided at the connection between the outer shell of the upper and lower rotating bases and the elbow joint, an oil seal and a sealing ring are provided at the connection between the shell and the S-shaped flow channel, an oil seal is also provided at the connection between the worm and the shell, and bearings are provided between the two sides of the worm wheel and the S-shaped flow channel and the elbow joint.

[0024] As an improvement, the left-right rotating base and the up-down rotating base are provided with grease nipples and sensors, and the sensors detect the rotation angles of the S-shaped flow channel and the elbow joint.

[0025] Compared with traditional technologies, the advantages of this utility model are:

[0026] 1. Adding soft limit switches to the left and right rotating seat and the up and down rotating seat can effectively protect the equipment;

[0027] 2. Add a manual emergency mode. A connector for inserting a crank or socket wrench is added to the end of the worm. In emergency mode, remove the end sealing cover and use the crank or wrench to manually adjust the muzzle position.

[0028] 3. The forward-leaning S-shaped flow channel design lowers the center of gravity of the product and reduces the radial reaction force of the liquid on the equipment during operation;

[0029] 4. Add a sensor at the end of the worm to monitor the angle of motor rotation, and cooperate with the MCU board to realize automatic cyclic rotation of the gun body;

[0030] 5. The barrel is equipped with a core shaft injection mechanism. The core shaft hole has a small flow channel section, high pressure, and long range, which can solve the problems of insufficient range and pressure during operation.

[0031] 6. Add a rotating oil seal to improve the waterproof effect of the rotating structure and slow down the aging process of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural diagram of the existing product slag discharge mode;

[0033] Figure 2 This is a structural diagram of the direct-injection mode of an existing product;

[0034] Figure 3 This is a structural diagram of the shower mode of existing products;

[0035] Figure 4 It is a structural diagram of the utility model;

[0036] Figure 5 This is a schematic diagram of the internal structure of the left-right rotating base of the present invention;

[0037] Figure 6 This is a schematic diagram of the internal structure of the barrel embodiment 1 of the utility model;

[0038] Figure 7 This is a schematic diagram of the internal structure of the second embodiment of the barrel of the utility model;

[0039] Figure 8 This is a structural diagram of a slag discharge mode in Example 1 of the present utility model;

[0040] Figure 9 This is a schematic structural diagram of a straight-beam mode embodiment of the present utility model;

[0041] Figure 10 This is a structural diagram of a shower mode according to a first embodiment of the present invention;

[0042] Figure 11 This is a structural diagram of the central water outlet mode of Example 1 of the present utility model;

[0043] Reference table of accompanying symbols:

[0044] 1. Left-right rotating base; 2. S-shaped flow channel; 3. Up-down rotating base; 4. Multi-functional adjustable gun head; 5. Elbow joint; 6. Mounting block; 7. Transmission block; 8. Connecting rod; 9. Fixed base; 101. Housing; 102. Left-right rotating motor; 103. Worm; 104. Worm gear; 105. Emergency manual connector; 106. Up-down rotating motor; 107. Sealing cover; 108. Circlip; 109. Oil seal; 110. Sealing ring; 111. Bearing; 112. Grease nipple; 113. Sensor; 401. Gun barrel; 402. Electric push rod; 403. Outer sleeve; 404. Gun core; 405. Hollow core shaft; 406. Interchangeable nozzle; 407. Preload spring; 408. Conical guide plug; 409. Sealing gasket; 410. Pull rod. DETAILED DESCRIPTION

[0045] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings, wherein the same components are represented by the same reference numerals.

[0046] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0047] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0048] Example 1

[0049] Combined with attachment Figures 8-10 The adjustable spray gun head 4 includes a barrel 401, an electric push rod 402 and a motion component. An electric push rod 402 is provided on one side of the multifunctional adjustable gun head. The piston rod of the electric push rod 402 drives the motion component to move through the transmission component. The motion component cooperates with the outer diameter and the center hole of the barrel 401 to form a linear reciprocating motion mechanism. Under the action of the electric push rod 402, the water outlet mode and the shape of the water outlet at the muzzle are changed to achieve direct injection, showering, slag discharge, and high-pressure core shaft spraying effects;

[0050] The motion assembly comprises an outer sleeve 403, a barrel core 404, a hollow core shaft 405, a replaceable nozzle 406, a pre-tightening spring 407, and a conical flow guide plug 408. The outer sleeve 403 is arranged outside the barrel 401. A sealing gasket 409 is arranged at the opening of the barrel 401. The barrel core 404 is slidably connected in the barrel 401. The barrel core 404 is provided with the hollow core shaft 405 penetrating therethrough. The barrel core 404 is slidably connected with the hollow core shaft 405. The replaceable nozzle 406 is arranged on the end of the hollow core shaft 405 exposed from the barrel core 404. The conical flow guide plug 408 is threadedly connected to the rear end of the hollow core shaft 405. The rear end of the hollow core shaft 405 is provided with a water inlet hole. The pre-tightening spring 407 is arranged between the barrel core 404 and the hollow core shaft 405. The piston rod of the electric push rod 402 is connected with the outer sleeve 403, and the outer sleeve 403 is connected with the hollow core shaft 405.

[0051] The transmission assembly comprises a mounting block 6, a transmission block 7, a connecting rod 8, and an electric push rod 402. The electric push rod 402 is connected with the elbow joint 5 through the mounting block 6 and the connecting rod 8. The piston rod of the electric push rod 402 is connected with the outer sleeve 403 through the transmission block 7.

[0052] The liquid enters through the pipe hole in the middle of the fixed base 9. The electric push rod 402 pulls the motion assembly to make linear reciprocating motion. The water outlet mode at the barrel opening and the flow channel shape and size at the water outlet are changed to achieve different spraying effects. The specific conditions are as follows:

[0053] The liquid enters the barrel pipe through the front inclined S-shaped flow channel 2. The piston rod of the electric push rod 402 is extended to drive the motion assembly comprising the outer sleeve 403, the barrel core 404, the hollow core shaft 405, the replaceable nozzle 406, the pre-tightening spring 407, and the conical flow guide plug 408 to make reciprocating linear motion along the axis of the barrel 401.

[0054] ①Deslagging mode: the electric push rod 402 pushes the barrel core 404 to the Figure 8 position. The cross-sectional area of the water outlet between the barrel core 404 and the barrel 401 is increased to achieve the deslagging effect.

[0055] ②Shower mode: the electric push rod pushes the barrel core 404 to the Figure 10 position. The arc surface of the barrel core 404 cooperates with the inclined surface at the barrel 401 to form the shower effect.

[0056] ③The electric push rod 402 pushes the barrel core 404 to the Figure 9 position. The outer diameter of the barrel core 404 forms an annular tubular outlet with the inner diameter of the barrel 401 to form the direct shooting effect.

[0057] ④The electric push rod 402 continues to move backward to the Figure 11When the position is reached, the arc surface of the cannon core 404 contacts the sealing gasket 409 at the cannon barrel 401 and stops running, and under the pressure of the pre-tightening spring 407, the annular tubular outlet is blocked, the conical flow guide plug 408 at the end of the hollow core shaft 405 is pushed away, and the water inlet hole on the hollow core shaft 405 is exposed. At this time, the water flow enters the hollow core shaft 405 through the water inlet hole, and is sprayed out from the replaceable nozzle 406. Because the cross section of the central hole flow channel of the hollow core shaft 405 gradually decreases, and the cross section of the flow channel at the replaceable nozzle 406 is much smaller than the cross section of the annular flow channel at the cannon barrel, the pressure at the water outlet of the replaceable nozzle 406 is greater, the range is farther, and the force is stronger, achieving the effect of high pressure and long range.

[0058] Embodiment two

[0059] The accompanying drawings are attached Figure 7 The motion assembly includes a pull rod 410, a cannon core 404, a hollow core shaft 405, a replaceable nozzle 406, a pre-tightening spring 407, and a conical flow guide plug 408. The pull rod 410 is arranged in the cannon barrel 401, and the cannon barrel 401 is provided with a sealing gasket 409 at the opening. The cannon core 404 is slidably connected in the cannon barrel 401. The pull rod 410 is connected with the conical flow guide plug 408. The cannon core 404 is provided with a hollow core shaft 405 penetrating therethrough. The cannon core 404 is slidably connected with the hollow core shaft 405. The replaceable nozzle 406 is arranged on one end of the hollow core shaft 405 exposed from the cannon core 404. The conical flow guide plug 408 is slidably connected to the rear end of the hollow core shaft 405. The hollow core shaft 405 is provided with a water inlet hole communicating therewith. The pre-tightening spring 407 is arranged between the cannon core 404 and the hollow core shaft 405. The piston rod of the electric push rod 402 is connected with the pull rod 410 through a transmission assembly.

[0060] The transmission assembly includes a transmission block 7 and an electric push rod 402. The electric push rod 402 is fixed on the side surface of the cannon barrel 401. The piston rod of the electric push rod 402 is connected with the pull rod 410 through the transmission block 7.

[0061] When adjusting the mode, the piston rod of the electric push rod 402 extends, driving the conical guide plug 408 to move through the transmission block 7 and the pull rod 410, and the conical guide plug 408 drives the gun core 404 and the hollow core shaft 405 to move, adjusting the relative position between the gun core 404 and the barrel 401. A groove for accommodating a preload spring 407 is provided on the outside of the hollow core shaft 405. The preload spring 407 is located between the gun core 404 and the hollow core shaft 405. The preload spring 407 has been compressed when it is installed in the groove. The spring with an initial length of 100 mm has about 50 mm left after being installed in the groove. When the gun core 404 moves backward in the barrel 401 and is blocked by the sealing gasket 409, it stops running. The electric push rod 402 pulls the hollow core shaft 405 to continue moving backward, and the preload spring 407 will be further compressed. At this time, the annular water outlet of the barrel 401 will be sealed tighter. At the same time, the water inlet hole on the hollow core shaft 405 will also be exposed. At this time, water flows into the hollow core shaft 405 from the water inlet hole and is sprayed out from the replaceable nozzle 406. The flow rate and pressure are higher.

[0062] Example 3

[0063] Combined with attachment Figures 4-5 The left and right rotating base 1 adjusts the direction of the S-shaped flow channel 2, and the up and down rotating base 3 adjusts the direction of the multifunctional adjustable gun head 4 through the elbow joint 5;

[0064] The left-right rotating base 1 includes a housing 101, a fixed base 9, a left-right rotating motor 102, a worm 103 and a worm wheel 104. The fixed base 9 is provided below the housing 101, and the left-right rotating motor 102 is provided on one side of the housing 101. The worm 103 and the worm wheel 104 are provided in the housing 101. The left-right rotating motor 102 drives the worm 103 to rotate, the S-shaped flow channel 2 and the housing 101 are rotatably connected to the fixed base 9, and the worm wheel 104 is connected to the fixed base 9. An emergency manual connector 105 is provided on the end of the worm 103 away from the left-right rotating motor 102, and the emergency manual connector 105 is rotatably connected to the housing 101 and exposed from the housing 101;

[0065] The up-and-down rotating base includes a housing 101, an up-and-down rotating motor 106, a worm 103, and a worm wheel 104. The up-and-down rotating motor 106 is provided on one side of the housing 101. The worm 103 and the worm wheel 104 are provided inside the housing 101. The worm 103 is meshed with the worm wheel 104. The up-and-down rotating motor 106 drives the worm 103 to rotate. The worm wheel 104 is connected to the elbow joint 5, and the elbow joint 5 is rotatably connected to the housing 101. An emergency manual joint 105 is provided on the end of the worm 103 away from the up-and-down rotating motor 106 and is rotatably connected to the housing 101 and exposed from the housing 101.

[0066] A sealing cover 107 is provided on the outer side of the emergency manual joint 105 .

[0067] The left and right rotating motor 102 drives the worm 103 to rotate. With the cooperation of the worm wheel 104 and the worm 103, the housing 101 drives the S-shaped flow channel 2 to rotate. When the power is off, an emergency manual connector 105 that can be inserted with a crank or socket wrench is added to the end of the worm 103. In emergency mode, the end sealing cover 107 is removed and the muzzle position can be manually adjusted with a crank or wrench.

[0068] The up-and-down rotating motor 106 drives the worm 103 to rotate, the worm 103 drives the worm gear 104 meshing therewith to rotate, and the worm gear 104 drives the elbow joint 5 to rotate, thereby adjusting the direction of the multifunctional adjustable gun head 4.

[0069] Combined with attachment Figures 4-5 A retaining spring 108 is provided at the connection between the housing 101 of the left and right rotating base 1 and the fixed base 9. An oil seal 109 and a sealing ring 110 are provided at the connection between the left and right rotating base 1 and the S-shaped flow channel 2. An oil seal 109 is also provided at the connection between the worm 103 and the housing 101. Bearings 111 are provided between the two sides of the worm wheel 103 and the S-shaped flow channel 2 and the fixed base 9.

[0070] A retaining spring 108 is provided at the connection between the housing 101 of the upper and lower rotating base 3 and the elbow joint 5. An oil seal 109 and a sealing ring 110 are provided at the connection between the housing 101 and the S-shaped flow channel 2. An oil seal 109 is also provided at the connection between the worm 103 and the housing 101. Bearings 111 are provided between the two sides of the worm wheel 103 and the S-shaped flow channel 2 and the elbow joint 5.

[0071] The left-right rotating base 1 and the up-down rotating base 3 are provided with a grease nipple 112 and a sensor 113 . The sensor 113 detects the rotation angle of the S-shaped flow channel 2 and the elbow joint 5 .

[0072] An oil seal 109 and a sealing ring 110 are provided at the joint to improve the sealing performance, enhance the waterproof effect of the rotating structure, and slow down the aging process of the equipment. The bearing 111 improves the smoothness of the rotation of the rotating part, and the grease nipple 112 can be used to add lubricating oil to the bearing.

[0073] A sensor 113 is added to the housing 101 at the position corresponding to the end of the worm 103 to monitor the rotation angles of the left and right rotating motor 102 and the up and down rotating motor 106, and cooperates with the MCU board to realize automatic cyclic rotation of the gun body.

[0074] The above description is only a preferred embodiment of the present utility model patent and is not intended to limit the present utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model patent shall be included in the scope of protection of the present utility model patent.

Claims

1. An automatic water spraying cannon, comprising a left-right rotating base (1), an S-shaped flow channel (2), an up-down rotating base (3) and a multifunctional adjustable cannon head (4), wherein the left-right rotating base (1) and the up-down rotating base (3) are respectively provided at both ends of the S-shaped flow channel (2), the left-right rotating base (1) adjusts the direction of the S-shaped flow channel (2), and the up-down rotating base (3) adjusts the direction of the multifunctional adjustable cannon head (4) through an elbow joint (5), and is characterized in that: The multifunctional adjustable gun head (4) comprises a gun barrel (401), an electric push rod (402) and a motion assembly. The multifunctional adjustable gun head is provided with an electric push rod (402) on one side. The piston rod of the electric push rod (402) drives the motion assembly to move through the transmission assembly. The motion assembly cooperates with the outer diameter and the center hole of the gun barrel (401) to form a linear reciprocating motion mechanism. Under the action of the electric push rod (402), the water outlet mode and the shape of the water outlet at the gun muzzle are changed, thereby achieving the effects of direct injection, showering, slag discharge, and high-pressure core shaft spraying.

2. The automatic water spraying cannon according to claim 1, characterized in that: The motion assembly comprises an outer sleeve (403), a gun core (404), a hollow core shaft (405), a replaceable nozzle (406), a preload spring (407), and a conical guide plug (408). The outer sleeve (403) is arranged on the outside of the gun barrel (401). A sealing gasket (409) is provided at the opening of the gun barrel (401). The gun core (404) is slidably connected to the inside of the gun barrel (401). A hollow core shaft (405) is provided at the center of the gun core (404) and passes through the gun core (404). The gun core (404) and the hollow core shaft (405) are connected to each other. Sliding connection, a replaceable nozzle (406) is provided on one end of the hollow core shaft (405) exposed from the gun core (404), a conical guide plug (408) is threadedly connected to the rear end of the hollow core shaft (405), a water inlet hole connected thereto is provided on the hollow core shaft (405), a preload spring (407) is provided between the gun core (404) and the hollow core shaft (405), the piston rod of the electric push rod (402) is connected to the outer sleeve (403) through a transmission assembly, and the outer sleeve (403) is connected to the hollow core shaft (405).

3. The automatic water spraying cannon according to claim 1, characterized in that: The motion assembly includes a pull rod (410), a gun core (404), a hollow core shaft (405), a replaceable nozzle (406), a preload spring (407), and a conical guide plug (408). The pull rod (410) is arranged in the gun barrel (401) and is slidably connected to the elbow joint (5). A sealing gasket (409) is provided at the opening of the gun barrel (401). The gun core (404) is slidably connected in the gun barrel (401). The pull rod (410) is connected to the conical guide plug (408). A hollow core shaft (405) is provided at the center of the gun core (404). The gun core (404) is slidably connected to the hollow core shaft (405); a replaceable nozzle (406) is provided on the end of the hollow core shaft (405) exposed from the gun core (404); a conical flow guide plug (408) is threadedly connected to the rear end of the hollow core shaft (405); a water inlet hole is provided on the hollow core shaft (405) and is connected to the water inlet hole; a preload spring (407) is provided between the gun core (404) and the hollow core shaft (405); the piston rod of the electric push rod (402) is connected to the pull rod (410) through a transmission assembly; and the pull rod (410) is connected to the conical flow guide plug (408).

4. The automatic water spraying monitor according to claim 2, characterized in that: The transmission assembly comprises a mounting block (6), a transmission block (7), a connecting rod (8) and an electric push rod (402); the electric push rod (402) is connected to the elbow joint (5) via the mounting block (6) and the connecting rod (8); and the piston rod of the electric push rod (402) is connected to the outer sleeve (403) via the transmission block (7).

5. The automatic water spraying monitor according to claim 3, characterized in that: The transmission assembly comprises a transmission block (7) and an electric push rod (402), wherein the electric push rod (402) is fixed to the side of the barrel (401), and the piston rod of the electric push rod (402) is connected to the pull rod (410) through the transmission block (7).

6. The automatic water spraying monitor according to claim 1, characterized in that: The left-right rotating base (1) comprises a housing (101), a fixed base (9), a left-right rotating motor (102), a worm (103) and a worm wheel (104); a fixed base (9) is provided below the housing (101); a left-right rotating motor (102) is provided on one side of the housing (101); a worm (103) and a worm wheel (104) are provided inside the housing (101); the left-right rotating motor (102) drives the worm (103) to rotate; the S-shaped flow channel (2) and the housing (101) are rotationally connected to the fixed base (9); the worm wheel (104) is connected to the fixed base (9); an emergency manual joint (105) is provided on one end of the worm (103) away from the left-right rotating motor (102); the emergency manual joint (105) is rotationally connected to the housing (101) and exposed from the housing (101); The up-down rotating base comprises a housing (101), an up-down rotating motor (106), a worm (103) and a worm wheel (104); the up-down rotating motor (106) is provided on one side of the housing (101); the worm (103) and the worm wheel (104) are provided in the housing (101); the worm (103) and the worm wheel (104) are meshed with each other; the up-down rotating motor (106) drives the worm (103) to rotate; the worm wheel (104) is connected to the elbow joint (5); the elbow joint (5) is rotatably connected to the housing (101); an emergency manual joint (105) is provided on one end of the worm (103) away from the up-down rotating motor (106) and is rotatably connected to the housing (101) and exposed from the housing (101); The emergency manual joint (105) is sheathed with a sealing cover (107) on the outside.

7. The automatic water spraying monitor according to claim 6, characterized in that: A retaining spring (108) is provided at the connection between the housing (101) of the left and right rotating base (1) and the fixed base (9); an oil seal (109) and a sealing ring (110) are provided at the connection between the left and right rotating base (1) and the S-shaped flow channel (2); an oil seal (109) is also provided at the connection between the worm (103) and the housing (101); and bearings (111) are provided between the two sides of the worm wheel (104) and the S-shaped flow channel (2) and the fixed base (9); A retaining spring (108) is provided at the connection between the housing (101) of the upper and lower rotating bases (3) and the elbow joint (5); an oil seal (109) and a sealing ring (110) are provided at the connection between the housing (101) and the S-shaped flow channel (2); an oil seal (109) is also provided at the connection between the worm (103) and the housing (101); and bearings (111) are provided between the two sides of the worm wheel (104) and the S-shaped flow channel (2) and the elbow joint (5).

8. An automatic water spraying monitor according to any one of claims 6 or 7, characterized in that: The left-right rotating base (1) and the upper-lower rotating base (3) are provided with a grease nipple (112) and a sensor (113), and the sensor (113) detects the rotation angle of the S-shaped flow channel (2) and the elbow joint (5).

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