Rotary spray gun capable of being quickly connected

Abstract

The utility model relates to the technical field of spray guns, and discloses a rotary spray gun capable of being quickly connected, which comprises a base, a pipe body, a nozzle and a quick connecting component, the base comprises an upper base and a lower base which are rotationally connected, the upper base covers the lower base, and a communication cavity is defined in the base; the pipe body is fixed on the upper base and is communicated with the communicating cavity; the nozzle is connected to the front end of the pipe body; the quick connecting assembly comprises a male connector and a female connector, one of the male connector and the female connector is fixed to the bottom of the lower base, and the other one is used for being connected with a liquid supply device. The male connector is inserted into the female connector in a sealed mode. A clamping groove is formed in the outer side wall of the male connector, a locking wrench is rotationally connected to the female connector, and by rotating the locking wrench, a protruding part on the locking wrench can penetrate through the side wall of the female connector and be matched with the clamping groove in a clamped mode so as to lock the male connector and the female connector. According to the utility model, the rotary spray gun and the liquid supply device can be quickly and conveniently connected, the operation is simple, the disassembly and assembly are easy, the efficiency is high, and the sealing performance is good.

Description

Technical Field

[0001] The utility model relates to the technical field of spray guns, in particular to a rotatable spray gun that can be quickly connected. Background Art

[0002] A spray gun is a device used for farmland irrigation or industrial dust removal. One end of the spray gun is connected to high-pressure water flow, and the other end sprays water through a nozzle. To achieve a 360-degree spraying effect on the target object, existing spray guns mostly adopt rotatable spray guns, which can be driven by hydraulic power and rely on the water pressure in the pipeline to provide power for the rotation of the spray gun.

[0003] The connection between the existing rotatable spray gun and the external liquid supply device usually adopts the flange connection method. Specifically, one flange is connected to the connection pipeline of the external water source, and the other flange is connected to the base of the spray gun. When connecting, the two flanges are connected by a plurality of bolts and nuts. The above connection method is cumbersome, time-consuming and laborious, inconvenient to disassemble and assemble, low in efficiency, and the connection part is prone to water leakage. Summary of the Utility Model

[0004] Based on the above, the purpose of the utility model is to provide a rotatable spray gun that can be quickly connected, which can realize the quick and convenient connection between the rotatable spray gun and the external liquid supply device, has simple operation, is easy to disassemble and assemble, high in efficiency and good in sealing performance.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rotatable spray gun that can be quickly connected, comprising:

[0007] A base, comprising an upper base and a lower base that are rotatably connected. The upper base covers the lower base, and a communication cavity is defined inside the base;

[0008] A pipe body, which is fixed on the upper base and communicates with the communication cavity;

[0009] A nozzle, connected to the front end of the pipe body;

[0010] A quick connection assembly, comprising a male connector and a female connector. One of the male connector and the female connector is fixed to the bottom of the lower base, and the other is used to connect to the liquid supply device; the male connector is inserted into the female connector and is hermetically connected to the female connector to form a sealed channel; a clamping groove is provided on the outer side wall of the male connector, and a locking wrench is rotatably connected to the female connector. By rotating the locking wrench, the protruding part on the locking wrench can pass through the side wall of the female connector and be engaged with the clamping groove to lock the male connector and the female connector.

[0011] In some possible embodiments, the male connector includes a first fixing portion and a first plug-in portion, the first fixing portion is used to be fixedly connected to the lower base, the first plug-in portion is used to be plugged into the female connector, and the slot is arranged on the outer side wall of the first plug-in portion; the female connector includes a second fixing portion and a second plug-in portion, the second fixing portion is used to be connected to the liquid supply device, the second plug-in portion is used to be plugged into the first plug-in portion, and the locking wrench is rotatably installed on the outer side of the second plug-in portion.

[0012] In some possible implementations, a limiting step is further provided in the female connector, and a sealing gasket is installed on the limiting step; by locking the male connector and the female connector, the first plug-in portion can be tightly pressed against the sealing gasket.

[0013] In some possible implementations, the slot is arranged in a ring shape on the outer circumference of the male connector.

[0014] In some possible implementations, two locking wrenches are provided, and the two locking wrenches are symmetrically arranged relative to the central axis of the female connector.

[0015] In some possible implementations, when the locking wrench is rotated toward the side wall of the female connector, the protrusion can enter the slot and engage with the slot; when the locking wrench is rotated away from the side wall of the female connector, the protrusion slides out of the slot.

[0016] In some possible implementations, a toothed disc is provided on the lower base, and the quickly connectable rotary spray gun further comprises:

[0017] A horizontal driving assembly, comprising a steering wheel, a worm gear disposed on the steering wheel, a steering water spray pipe connected to the communication chamber, and a reduction assembly connected to the worm gear, wherein the inlet end of the steering water spray pipe is movably connected to the upper base and the two are connected, and the outlet end of the steering water spray pipe is disposed toward the steering wheel, and the water sprayed from the steering water spray pipe can drive the steering wheel to rotate in a clockwise or counterclockwise direction, and the steering wheel can drive the input end of the reduction assembly to rotate through the worm gear;

[0018] A transmission rod, one end of which is fixed to the output end of the reduction assembly, and the other end of which passes through the upper base and is provided with external teeth that engage with the gear disc. The reduction assembly can drive the transmission rod to rotate and the transmission rod can rotate around the gear disc, so that the upper base drives the tube body and the nozzle to rotate in a horizontal direction relative to the lower base.

[0019] In some possible embodiments, the rotatable spray gun with quick connection further includes a water breaking component, which includes a first water breaking rod, a second water breaking rod and a contact block. The first water breaking rod is parallel to the pipe body and fixedly connected to the contact block. The water breaking component can rotate around the central axis of the first water breaking rod. The second water breaking rod can rotate upward or downward relative to the first water breaking rod. The front end of the second water breaking rod is bent towards the nozzle. An eccentric wheel is provided on the transmission rod. When the eccentric wheel rotates with the transmission rod, it can jack up the contact block and drive the first water breaking rod and the second water breaking rod to rotate. The first water breaking rod and the second water breaking rod can also reset when the eccentric wheel separates from the contact block.

[0020] In some possible embodiments, the rotatable spray gun with quick connection further includes a commutation component. A sleeve is fixedly provided on the upper base. The commutation component is in clearance fit with the sleeve. A positioning groove is provided on the commutation component. The steering water pipe is placed in the positioning groove. A positioning ring with at least two positioning protrusions is provided on the lower base. Each time the commutation component can abut against one of the two adjacent positioning protrusions to change the moving direction of the steering water pipe, so as to change the rotation direction of the steering wheel driven by the water sprayed from the steering water pipe to drive the worm.

[0021] In some possible embodiments, a plurality of through holes are provided on the toothed disc along its circumferential direction. The lower end of the water inlet pipe is rotatably and sealingly connected to the lower base, and the upper end is fixedly connected to the upper base. The toothed disc is rotatably sleeved on the lower base. A telescopic limiting component is provided on the lower base. The limiting component can extend into the through holes to fix the toothed disc on the lower base. The limiting component can also disengage from the through holes to enable the transmission rod to drive the toothed disc to rotate. An avoidance hole for avoiding the limiting component is provided on the male connector.

[0022] The beneficial effects of the present utility model are as follows: For the rotatable spray gun disclosed in the present utility model, since one of the male connector and the female connector is fixed to the bottom of the lower base and the other is connected to the liquid supply device, when connecting the rotatable spray gun to the liquid supply device, only need to insert the male connector into the female connector, and then rotate the locking wrench to lock the male connector and the female connector. The above connection method realizes the quick connection between the rotatable spray gun and the external liquid supply device, with simple operation, convenient disassembly and assembly, time-saving and labor-saving, high connection efficiency. Moreover, since the male connector and the female connector are in sealed connection, the sealing performance of the connection is ensured, and water leakage at the connection part is prevented. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the accompanying drawings required for the description of the embodiments of the present utility model. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on the content of the embodiments of the present utility model and these accompanying drawings.

[0024] Figure 1 is a schematic structural diagram of a rotatable spray gun with quick connection provided by a specific embodiment of the present utility model;

[0025] Figure 2 is a schematic structural diagram of the first part of a rotatable spray gun with quick connection provided by a specific embodiment of the present utility model;

[0026] Figure 3 is a schematic structural diagram of the second part of a rotatable spray gun with quick connection provided by a specific embodiment of the present utility model;

[0027] Figure 4 is a schematic diagram of the second part of a rotatable spray gun with quick connection in another direction provided by a specific embodiment of the present utility model;

[0028] Figure 5 is Figure 4 a partial enlarged view at A;

[0029] Figure 6 is a schematic structural diagram of a male connector provided by a specific embodiment of the present utility model;

[0030] Figure 7 is a cross-sectional view of a male connector provided by a specific embodiment of the present utility model;

[0031] Figure 8 is a cross-sectional view of a female connector provided by a specific embodiment of the present utility model;

[0032] Figure 9 is an assembled cross-sectional view of a male connector and a female connector provided by a specific embodiment of the present utility model;

[0033] Figure 10 is a schematic structural diagram of a nozzle provided by a specific embodiment of the present utility model;

[0034] Figure 11 is a disassembled schematic diagram of a nozzle provided by a specific embodiment of the present utility model.

[0035] In the figure:

[0036] 11. Upper base; 111. Sleeve; 12. Lower base; 121. Tooth disc; 1210. Through hole; 122. Positioning ring; 1221. Positioning protrusion; 123. Second bearing; 13. Limit component; 131. Connecting pin; 132. Spring; 133. Pressing piece;

[0037] 21. Pipe body; 22. Base; 222. First internal thread; 223. Second external thread; 224. First anti-slip protrusion; 23. Nozzle body; 24. Fixed sleeve; 241. Second internal thread; 242. Second anti-slip protrusion;

[0038] 31. Steering wheel; 311. Steering wheel body; 312. Fan blade; 32. Worm; 321. First bearing; 33. Steering spray water pipe;

[0039] 41. Gear set; 411. First gear; 412. Second gear; 42. Planet gear; 43. Fixed gear ring; 431. Protection cylinder; 44. Planet carrier;

[0040] 5. Transmission rod; 51. External teeth; 52. Eccentric wheel;

[0041] 6. Suspension bracket; 60. Horizontal groove;

[0042] 70. Positioning groove; 71. Reversing rod; 72. Steering shaft; 73. Steering bracket; 74. Linkage assembly; 741. First link; 742. Second link;

[0043] 81. First water-breaking rod; 82. Second water-breaking rod; 83. Contact block; 84. Torsion spring;

[0044] 91. Male connector; 911. First fixing part; 912. First insertion part; 913. Card slot; 914. Avoidance hole; 92. Female connector; 921. Second fixing part; 922. Second insertion part; 923. Locking wrench; 924. Sealing washer;

[0045] 100. Water inlet pipe. Detailed implementation manners

[0046] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present utility model clearer, the technical solutions of the embodiments of the present utility model will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.

[0047] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0048] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, or a detachable connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0049] Such as Figures 1 to 11As shown in the figure, this embodiment provides a rotatable spray gun that can be quickly connected. The rotatable spray gun includes a base, a pipe body 21, a nozzle, a horizontal drive assembly, a transmission rod 5, and a quick connection assembly. The base includes an upper base 11 and a lower base 12 that are rotatably connected. A gear disk 121 is provided on the lower base 12, and a communication cavity is defined inside the base. The pipe body 21 is fixed on the upper base 11 and communicates with the communication cavity. The horizontal drive assembly includes a steering wheel 31, a worm 32 provided on the steering wheel 31, a steering spray water pipe 33 communicating with the communication cavity, and a reduction assembly that is drivingly connected to the worm 32. The inlet end of the steering spray water pipe 33 is movably connected to the upper base 11 and the two communicate. The outlet end of the steering spray water pipe 33 is arranged facing the steering wheel 31. The water sprayed out by the steering spray water pipe 33 can drive the steering wheel 31 to rotate in the clockwise or counterclockwise direction, and the steering wheel 31 can drive the input end of the reduction assembly to rotate through the worm 32. One end of the transmission rod 5 is fixed to the output end of the reduction assembly, and the other end passes through the upper base 11 and is provided with external teeth 51 that mesh with the gear disk 121. The reduction assembly can drive the transmission rod 5 to rotate, and the transmission rod 5 can rotate around the gear disk 121, so that the upper base 11 drives the pipe body 21 and the nozzle to rotate horizontally relative to the lower base 12. The quick connection assembly includes a male connector 91 and a female connector 92. One of the male connector 91 and the female connector 92 is fixed to the bottom of the lower base 12, and the other is used to connect to a liquid supply device. The male connector 91 is inserted into the female connector 92 and is hermetically connected to the female connector 92 to form a sealed channel. A clamping groove 913 is provided on the outer side wall of the male connector 91, and a locking wrench 923 is rotatably connected to the female connector 92. By rotating the locking wrench 923, the protruding part on the locking wrench 923 can pass through the side wall of the female connector 92 and be clamped and matched with the clamping groove 913 to lock the male connector 91 and the female connector 92.

[0050] For the rotatable spray gun provided in this embodiment, since one of the male connector 91 and the female connector 92 is fixed to the bottom of the lower base 12 and the other is connected to the liquid supply device, when connecting the rotatable spray gun to the liquid supply device, it is only necessary to insert the male connector 91 into the female connector 92 and then rotate the locking wrench 923 to lock the male connector 91 and the female connector 92. The above connection method realizes the quick connection between the rotatable spray gun and the external liquid supply device, has simple operation, is convenient for disassembly and assembly, saves time and effort, and has high connection efficiency. Moreover, since the male connector 91 and the female connector 92 are hermetically connected, the sealing performance of the connection is ensured, and water leakage at the connection part is prevented. The rotatable spray gun can also realize the rotation of the steering wheel 31 through the impact force of the water flow at the outlet of the steering spray water pipe 33, and then realize the rotation of the transmission rod 5 around the gear disk 121 through the worm 32, the reduction assembly and the transmission rod 5. Furthermore, the upper base 11 drives the pipe body 21 and the nozzle to rotate horizontally relative to the lower base 12, so that the rotatable spray gun rotates in the horizontal plane when spraying water, improving the uniformity of spraying.

[0051] Optionally, the male connector 91 of this embodiment is fixed to the bottom of the lower base 12, and the female connector 92 is connected to an external liquid supply device. Specifically, the male connector 91 includes a first fixing portion 911 and a first plugging portion 912. The first fixing portion 911 is in a flange shape and is fixedly connected to the lower base 12 by bolts; the first plugging portion 912 is located below the first fixing portion 911 and is used for plugging with the female connector 92; a card slot 913 is arranged on the outer side wall of the first plugging portion 912, and the cross-section of the card slot 913 is arc-shaped and is arranged conformingly with the protruding portion on the locking wrench 923. The female connector 92 includes a second fixing portion 921 and a second plugging portion 922. The second fixing portion 921 can be fixedly connected to the liquid supply device through internal or external threads. The second plugging portion 922 is located above the second fixing portion 921 and is used for plugging with the first plugging portion 912; a lug is arranged on the outer side wall of the second plugging portion 922, and the locking wrench 923 is rotatably connected to the lug. One end of the locking wrench 923 connected to the lug is provided with the above-mentioned protruding portion, and the protruding portion is arc-shaped so as to enter the card slot 913.

[0052] In this embodiment, a limiting step is further arranged in the female connector 92, and a sealing gasket 924 is installed on the limiting step. After the male connector 91 is plugged into the female connector 92, by rotating the locking wrench 923 to lock the male connector 91 and the female connector 92, the first plugging portion 912 can be tightly abutted against the sealing gasket 924, thereby realizing the sealing between the first plugging portion 912 and the second plugging portion 922. The above sealing method has a simple structure and is convenient for installation, ensuring the reliability of the seal between the male connector 91 and the female connector 92 and preventing water leakage at the connection part.

[0053] Optionally, in this embodiment, the card slot 913 is annularly arranged on the outer periphery of the male connector 91. Thus, after the male connector 91 is inserted into the female connector 92, it is not necessary to rotate and adjust the relative position between the male connector 91 and the female connector 92. Instead, the convex portion can be snapped into the card slot 913 by rotating the locking wrench 923, realizing the locking of the male connector 91 and the female connector 92, and the operation is simpler and more convenient. Further, in this embodiment, there are two locking wrenches 923, and the two locking wrenches 923 are symmetrically arranged with respect to the central axis of the female connector 92. The symmetrical arrangement can improve the connection and matching accuracy and strength of the male connector 91 and the female connector 92, and is convenient for the operator to operate the two locking wrenches 923 simultaneously, making the force on the male connector 91 more stable and improving the reliability of locking the male connector 91 and the female connector 92. Optionally, in this embodiment, when the two locking wrenches 923 rotate and close towards the side wall of the female connector 92, the convex portion can enter the corresponding card slot 913 and be snap-fitted with the card slot 913. At this time, the male connector 91 and the female connector 92 are locked to each other; when the two locking wrenches 923 rotate and open away from the side wall of the female connector 92, the convex portion slides out of the card slot 913, and at this time, the male connector 91 and the female connector 92 are unlocked. Such a setting is more in line with the operator's usage habits and further improves the connection efficiency of the male connector 91 and the female connector 92. Optionally, both the male connector 91 and the female connector 92 in this embodiment are made of stainless steel to improve their corrosion resistance and service life.

[0054] Further, the nozzle in this embodiment includes a base 22, a nozzle body 23, and a fixing sleeve 24. The base 22 is fixedly arranged on the pipe body 21. The nozzle body 23 can rotate upward or downward relative to the base 22. The fixing sleeve 24 is detachably fixed on the base 22 and can make the nozzle body 23 be hermetically and fixedly connected to the base 22. The base 22 in this embodiment is provided with a first internal thread 222 that mates with the first external thread on the pipe body 21, and the base 22 can be screwed onto the pipe body 21; the base 22 is also provided with a second external thread 223, and the fixing sleeve 24 is provided with a second internal thread 241 that mates with the second external thread 223, and the fixing sleeve 24 is screwed onto the base 22. To facilitate screwing the base 22 onto the pipe body 21, the base 22 in this embodiment is provided with a plurality of first anti-slip protrusions 224 extending along the axial direction of the base 22. To facilitate screwing the fixing sleeve 24 onto the base 22, the fixing sleeve 24 is provided with a plurality of second anti-slip protrusions 242 extending along the axial direction of the fixing sleeve 24.

[0055] The rotary spray gun of the present embodiment also includes a water-breaking assembly, which includes a first water-breaking rod 81, a second water-breaking rod 82 and a contact block 83. The first water-breaking rod 81 is parallel to the tube body 21 and is fixedly connected to the contact block 83. The water-breaking assembly can rotate with the central axis of the first water-breaking rod 81 as the rotating shaft. The first water-breaking rod 81 is rotatably arranged on the tube body 21, and the second water-breaking rod 82 can rotate upward or downward relative to the first water-breaking rod 81. The front end of the second water-breaking rod 82 is bent toward the direction of the nozzle. An eccentric wheel 52 is provided on the transmission rod 5. When the eccentric wheel 52 rotates with the transmission rod 5, it can lift the contact block 83 and drive the water-breaking rod to rotate. The first water-breaking rod 81 and the second water-breaking rod 82 can also be reset when the contact block 83 is separated from the eccentric wheel 52. Specifically, the water-breaking assembly of this embodiment also includes a torsion spring 84 mounted on the first water-breaking rod 81, one end of the torsion spring 84 is connected to the upper base 11, and the other end of the torsion spring 84 abuts against the first water-breaking rod 81 or the contact block 83. The torsion spring 84 can reset the first water-breaking rod 81 and the second water-breaking rod 82 when the contact block 83 is separated from the eccentric wheel 52.

[0056] That is to say, in the natural state, the first water-breaking rod 81 and the second water-breaking rod 82 are in the initial position. When the transmission rod 5 rotates, the transmission rod 5 drives the eccentric wheel 52 to rotate synchronously. As the two rotate, the eccentric wheel 52 gradually abuts against the contact block 83 and pushes the first water-breaking rod 81 and the second water-breaking rod 82 to rotate through the contact block 83. At this time, the contact block 83 is gradually lifted up, and the front end of the second water-breaking rod 82 gradually deviates from the outlet of the nozzle, and the torsion spring 84 undergoes elastic deformation. When the eccentric wheel 52 is separated from the contact block 83, the first water-breaking rod 81 and the second water-breaking rod 82 rotate and reset to the initial position under the action of the torsion spring 84, and the contact block 83 falls. At this time, the second water-breaking rod 82 is facing the outlet of the nozzle, which plays a role in dispersing the water flow at the outlet of the nozzle. As the transmission rod 5 rotates, the eccentric wheel 52 periodically lifts the contact block 83, and the contact block 83 is periodically lifted and dropped, so that the second water-breaking rod 82 is aligned with the nozzle and leaves the nozzle, which plays a periodic water-breaking effect. In other embodiments, when the contact block 83 is gradually lifted up, the front end of the second water-breaking rod 82 faces the outlet of the nozzle; when the first water-breaking rod 81 and the second water-breaking rod 82 are reset to their initial positions, the front end of the second water-breaking rod 82 deviates from the outlet of the nozzle, which is specifically set according to actual needs.

[0057] The reduction assembly of this embodiment includes a gear set 41, a planetary gear 42, a fixed ring gear 43 and a planet carrier 44. The fixed ring gear 43 is fixed on the tube body 21. The gear set 41 is respectively meshed with the planetary gear 42 and the worm 32. The planetary gear 42 is meshed with the fixed ring gear 43 and a transmission rod 5 is fixedly provided on the planet carrier 44. The worm 32 can drive the planet carrier 44 to drive the transmission rod 5 to rotate through the gear set 41 and the planetary gear 42 in turn.

[0058] The speed reduction component can reduce the rotational speed of the worm 32, significantly reducing the rotational speed of the transmission rod 5. As a result, the rotating rod drives the upper base 11, the pipe body 21, and the nozzle to rotate relative to the lower base 12 at a slower speed. When the angle is adjustable during operation, the water ejected from the steering water pipe 33 can drive the steering wheel 31 and the worm 32 to rotate at a faster speed. Consequently, the worm 32 drives the transmission rod 5 to rotate at a slower speed through the speed reduction component. Finally, the transmission rod 5 rotates around the gear ring 121 at a relatively slow speed, ensuring that the upper base 11, the pipe body 21, and the nozzle rotate synchronously at a slower speed, guaranteeing the uniformity of spraying and facilitating the use of the rotary spray gun.

[0059] Specifically, the gear set 41 of this embodiment includes a first gear 411 and a second gear 412 that are coaxially and fixedly connected. The diameter of the first gear 411 is larger than that of the second gear 412 and meshes with the worm 32, and the second gear 412 meshes with the planet gear 42. The steering wheel 31 and the worm 32 of this embodiment rotate at the same angular velocity, and the linear velocity of the worm 32 is less than that of the steering wheel 31, causing the rotational speed of the worm 32 to be initially reduced when it meshes with the first gear 411. Since the diameter of the first gear 411 is larger than that of the second gear 412, the rotational speed of the second gear 412 is further reduced when it meshes with the planet gear 42, resulting in the planet carrier 44 rotating at a lower speed. Since the external teeth 51 of the transmission rod 5 mesh with a gear ring with a larger diameter, the transmission rod 5 rotates around the gear ring at a lower speed, ensuring that the upper base 11, the pipe body 21, and the nozzle rotate at a lower speed and guaranteeing the uniformity of spraying.

[0060] The number of planet gears 42 in this embodiment is three. The planet carrier 44 includes a fixed disk, three fixed shafts provided on one side of the fixed disk, and a connecting shaft provided on the other side of the fixed disk. Each fixed shaft is rotatably connected to a planet gear 42, and the connecting shaft is fixedly connected to the transmission rod 5. When the second gear 412 drives the planet gear 42 to rotate, the planet gear 42 rotates relative to the fixed shaft. Since the planet gear 42 also meshes with the fixed gear ring 43, and the fixed gear ring 43 is fixed to the pipe body 21, the three planet gears 42 drive the planet carrier 44 to rotate. That is to say, each planet gear 42 can drive the planet carrier 44 to revolve while rotating around its corresponding fixed shaft.

[0061] In this embodiment, a plurality of through holes 1210 are provided on the gear disk 121 along its circumferential direction. The lower end of the water inlet pipe 100 is rotatably and sealingly connected to the lower base 12 through a second bearing 123 and a seal (not shown in the figure), and the upper end is threadedly connected to the upper base 11. The gear disk 121 is rotatably sleeved on the lower base 12. A telescopic limiting component 13 is provided on the lower base 12. The limiting component 13 can extend into the through hole 1210 to fix the gear disk 121 on the lower base 12, and the limiting component 13 can also disengage from the through hole 1210 so that the transmission rod 5 drives the gear disk 121 to rotate; an avoidance hole 914 for avoiding the limiting component 13 is provided on the male joint 91.

[0062] Specifically, the limiting component 13 includes a connecting pin 131, a spring 132 and a pressing piece 133. The connecting pin 131 penetrates through the lower base 12. The spring 132 is arranged at the bottom end of the connecting pin 131. One end of the spring 132 is connected to the pressing piece 133, and the other end is connected to the lower base 12. The pressing piece 133 is fixed to the lower end of the connecting pin 131. In the natural state, the upper end of the connecting pin 131 extends into the through hole 1210 so that the gear disk 121 will not rotate relative to the lower base 12. When the pressing piece 133 is pressed, the connecting pin 131 moves downward with the pressing piece 133. At this time, the spring 132 is in a stretched state, and the upper end of the connecting pin 131 disengages from the through hole 1210, and the gear disk 121 can rotate relative to the lower base 12.

[0063] Furthermore, in the natural state, the limiting component 13 positions the gear disk 121 on the lower base 12, that is, the gear disk 121 will not rotate relative to the lower base 12. When the transmission rod 5 rotates, since the external teeth 51 at one end of the transmission rod 5 mesh with the gear disk 121, and the gear disk 121 itself does not rotate, the transmission rod 5 drives the upper base 11 to rotate around the gear disk 121, so that the pipe body 21 and the nozzle rotate relative to the lower base 12. When the pressing piece 133 is pressed, the upper end of the connecting pin 131 disengages from the through hole 1210. At this time, the gear disk 121 can rotate relative to the lower base 12, and the upper base 11 will not rotate relative to the lower base 12.

[0064] The rotary spray gun of this embodiment further includes a suspension bracket 6 fixed on the pipe body 21. A horizontal groove 60 is provided on the suspension bracket 6. The steering spray water pipe 33 penetrates through the horizontal groove 60 and can swing left and right along the horizontal direction in the horizontal groove 60. The lower end of the suspension bracket 6 is fixedly connected to the fixed gear ring 43. That is to say, when the steering spray water pipe 33 swings left and right, the horizontal groove 60 on the suspension bracket 6 plays a guiding role to ensure that the steering spray water pipe 33 swings along the horizontal direction, so as to ensure that the water at the outlet of the steering spray water pipe 33 can be directly facing the steering wheel 31, thereby changing the rotation direction of the steering wheel 31.

[0065] On the fixed gear ring 43 of this embodiment, a protection cylinder 431 communicating with it is provided. The worm 32 extends into the protection cylinder 431 and is rotatably connected to the protection cylinder 431 through a first bearing 321, making the rotation of the worm 32 in the protection cylinder 431 smoother and more stable, reducing the possibility of the worm 32 shaking during rotation. A skeleton oil seal (not shown in the figure) is provided at the upper end of the protection cylinder 431. The skeleton oil seal is pressed into the protection cylinder 431. The skeleton oil seal has the characteristics of a strong structure and good sealing performance. The skeleton oil seal can not only prevent the lubricating oil in the protection cylinder 431 from flowing outwards, but also prevent external dust or water from entering the protection cylinder 431, playing a role in protecting the worm 32, so that the environment inside the speed reduction assembly is not damaged, and the service life of the spray gun is extended.

[0066] Specifically, the upper and lower ends of the worm 32 are respectively rotatably connected to the protection cylinder 431 through a first bearing 321. A skeleton oil seal is provided at the upper end of the first bearing 321 located at the upper end of the protection cylinder 431, and a skeleton oil seal is also provided at the lower end of the first bearing 321 located at the lower end of the protection cylinder 431.

[0067] Specifically, the steering wheel 31 of this embodiment includes a steering wheel body 311 and a plurality of fan blades 312. Each fan blade 312 is located below the steering wheel body 311 and is perpendicular to the steering wheel body 311. The fan blades 312 are distributed radially along the steering wheel body 311. The outlet of the steering water pipe 33 can be directly opposite to the fan blades 312. When the water outlet end of the steering water pipe 33 is located at the left end of the steering wheel body 311, the water flow it sprays can push the fan blades 312 to drive the steering wheel body 311 to rotate clockwise, so that the upper base 11, the pipe body 21 and the nozzle rotate along the preset direction; when the water outlet end of the steering water pipe 33 swings horizontally to the right end of the steering wheel body 311, the water flow it sprays can push the fan blades 312 to drive the steering wheel body 311 to rotate counterclockwise, so that the upper base 11, the pipe body 21 and the nozzle rotate in the direction opposite to the preset direction.

[0068] The rotary spray gun of this embodiment further includes a commutation assembly. A sleeve 111 is fixedly arranged on the upper base 11. The commutation assembly is in clearance fit with the sleeve 111. The commutation assembly can rotate relative to the sleeve 111. A positioning groove 70 is provided on the commutation assembly. The steering water pipe 33 is placed in the positioning groove 70. A positioning ring 122 with at least two positioning protrusions 1221 is provided on the lower base 12. The commutation assembly can abut against one of the two adjacent positioning protrusions 1221 each time to change the moving direction of the steering water pipe 33 in the horizontal groove 60, so as to change the rotation direction of the water sprayed by the steering water pipe 33 to drive the steering wheel 31 to drive the worm 32. By changing the positions of the two adjacent positioning protrusions 1221 on the positioning ring 122, the range angle of the horizontal swing of the rotary spray gun can be changed.

[0069] Specifically, the commutation assembly of this embodiment includes a commutation rod 71, a steering shaft 72, a steering bracket 73 and a connecting rod assembly 74. One end of the commutation rod 71 is located on the outer periphery of the upper base 11 and can abut against the positioning protrusion 1221. The steering shaft 72 is in clearance fit with the sleeve 111. One end of the steering shaft 72 is fixedly connected to the commutation rod 71. The steering shaft 72 is perpendicular to the steering water spray pipe 33. One end of the steering bracket 73 is rotatably connected to the other end of the steering shaft 72. A positioning groove 70 is provided at the other end of the steering bracket 73. A hollow cavity is provided in the steering bracket 73. The connecting rod assembly 74 is arranged in the hollow cavity and includes a first connecting rod 741 and a second connecting rod 742. One end of the first connecting rod 741 is movably connected to the steering bracket 73 through a pin shaft. The other end of the first connecting rod 741 is rotatably connected to one end of the second connecting rod 742. The other end of the second connecting rod 742 is fixedly connected to the steering shaft 72.

[0070] Further, the positioning groove 70 of this embodiment is a U-shaped groove. The steering water spray pipe 33 is placed in the U-shaped groove. When the commutation rod 71 abuts against a positioning protrusion 1221, the steering bracket 73 can drive the steering water spray pipe 33 to change the swinging direction in the horizontal plane, so that the rotation direction of the steering wheel 31 is changed. Finally, the rotation directions of the upper base 11, the pipe body 21 and the nozzle are changed until the commutation rod 71 abuts against another positioning protrusion 1221 on the positioning ring 122, and the steering bracket 73 drives the direction of the water outlet end of the steering water spray pipe 33 to change again, so that the rotation direction of the steering wheel 31 is changed again. As the upper base 11 and the sleeve 111 rotate, the steering bracket 73 periodically drives the steering water spray pipe 33 to swing left and right. The steering water spray pipe 33 periodically drives the steering wheel 31 to rotate clockwise or counterclockwise, so that the jetting direction of the water flow in the pipe body 21 and the nozzle is periodically changed, achieving the effect of periodically changing the jetting direction of the water flow.

[0071] The rotary spray gun of this embodiment can swing periodically at a relatively slow rotation speed in the horizontal direction. The nozzle body 23 can rotate up or down relative to the pipe body 21 to a suitable angle. The second water-breaking rod 82 can be adjusted to a position suitable for the angle of the nozzle body 23. The water-breaking assembly can periodically break the water flow jetted from the nozzle. The water flow jetted from the nozzle and the steering spray rod is relatively uniform. The commutation assembly can quickly commutate the steering water spray pipe 33. By changing the positions of two adjacent positioning protrusions 1221 on the positioning ring 122, the range angle of the horizontal swing of the rotary spray gun can also be changed.

[0072] Note that the above is only the preferred embodiment of the present utility model and the applied technical principles. Those skilled in the art will understand that the present utility model is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present utility model. Therefore, although the present utility model has been described in more detail through the above embodiments, the present utility model is not limited to the above embodiments. Without departing from the concept of the present utility model, more other equivalent embodiments can be included, and the scope of the present utility model is determined by the scope of the appended claims.

Claims

1. A quick-connectable rotary spray gun, characterized in that: include: A base, comprising an upper base (11) and a lower base (12) which are rotatably connected, wherein the upper base (11) covers the lower base (12) and a communicating cavity is defined in the base; A tube body (21) fixed on the upper base (11) and connected to the communication cavity; A nozzle connected to the front end of the tube body (21); A quick connection assembly comprises a male connector (91) and a female connector (92), wherein one of the male connector (91) and the female connector (92) is fixed to the bottom of the lower base (12), and the other of the male connector (91) is used to connect to a liquid supply device; the male connector (91) is inserted into the female connector (92) and is sealed with the female connector (92) to form a sealed passage; a clamping groove (913) is provided on the outer side wall of the male connector (91), and a locking wrench (923) is rotatably connected to the female connector (92); by rotating the locking wrench (923), a protrusion on the locking wrench (923) can pass through the side wall of the female connector (92) and be clamped with the clamping groove (913) to lock the male connector (91) and the female connector (92).

2. The quick-connectable rotary spray gun according to claim 1, characterized in that: The male connector (91) includes a first fixing portion (911) and a first plug-in portion (912), wherein the first fixing portion (911) is used for fixed connection with the lower base (12), and the first plug-in portion (912) is used for plugging with the female connector (92), and the card slot (913) is arranged on the outer side wall of the first plug-in portion (912); the female connector (92) includes a second fixing portion (921) and a second plug-in portion (922), wherein the second fixing portion (921) is used for connecting with the liquid supply device, and the second plug-in portion (922) is used for plugging with the first plug-in portion (912), and the locking wrench (923) is rotatably installed on the outer side of the second plug-in portion (922).

3. The quick-connectable rotary spray gun according to claim 2, characterized in that: A limiting step is also provided in the female connector (92), and a sealing gasket (924) is installed on the limiting step; by locking the male connector (91) and the female connector (92), the first plug-in portion (912) can be tightly abutted against the sealing gasket (924).

4. The quick-connectable rotary spray gun according to claim 1, characterized in that: The clamping groove (913) is arranged in an annular shape on the outer periphery of the male connector (91).

5. The quick-connectable rotary spray gun according to claim 1, characterized in that: Two locking wrenches (923) are provided, and the two locking wrenches (923) are symmetrically arranged relative to the central axis of the female connector (92).

6. The quick-connectable rotary spray gun according to claim 5, characterized in that: When the locking wrench (923) is rotated in a direction approaching the side wall of the female connector (92), the protrusion can enter the slot (913) and engage with the slot (913); when the locking wrench (923) is rotated in a direction away from the side wall of the female connector (92), the protrusion slides out of the slot (913).

7. The quick-connectable rotary spray gun according to any one of claims 1 to 6, characterized in that: The lower base (12) is provided with a toothed disc (121), and the quick-connectable rotary spray gun further comprises: A horizontal driving assembly, comprising a steering wheel (31), a worm (32) arranged on the steering wheel (31), a steering water spray pipe (33) connected to the communication chamber, and a reduction assembly drivingly connected to the worm (32), wherein the inlet end of the steering water spray pipe (33) is movably connected to the upper base (11) and the two are connected, and the outlet end of the steering water spray pipe (33) is arranged toward the steering wheel (31), and the water sprayed by the steering water spray pipe (33) can drive the steering wheel (31) to rotate in a clockwise or counterclockwise direction, and the steering wheel (31) can drive the input end of the reduction assembly to rotate through the worm (32); A transmission rod (5), one end of the transmission rod (5) is fixed to the output end of the reduction assembly, the other end of the transmission rod (5) passes through the upper base (11) and is provided with external teeth (51) meshing with the toothed disc (121), the reduction assembly can drive the transmission rod (5) to rotate and the transmission rod (5) can rotate around the toothed disc (121), so that the upper base (11) drives the tube body (21) and the nozzle to rotate in a horizontal direction relative to the lower base (12).

8. The quick-connectable rotary spray gun according to claim 7, characterized in that: The quick-connectable rotary spray gun further comprises a water-breaking assembly, the water-breaking assembly comprising a first water-breaking rod (81), a second water-breaking rod (82) and a contact block (83); the first water-breaking rod (81) is parallel to the tube body (21) and is fixedly connected to the contact block (83); the water-breaking assembly can rotate with the central axis of the first water-breaking rod (81) as a rotating axis; the second water-breaking rod (82) can rotate upward or downward relative to the first water-breaking rod (81); the front end of the second water-breaking rod (82) is bent toward the direction of the nozzle; an eccentric wheel (52) is provided on the transmission rod (5); the eccentric wheel (52) can lift up the contact block (83) and drive the first water-breaking rod (81) and the second water-breaking rod (82) to rotate when the transmission rod (5) rotates; the first water-breaking rod (81) and the second water-breaking rod (82) can also be reset when the eccentric wheel (52) is separated from the contact block (83).

9. The quick-connectable rotary spray gun according to claim 7, characterized in that: The quick-connectable rotary spray gun also includes a reversing assembly, a sleeve (111) is fixedly arranged on the upper base (11), the reversing assembly and the sleeve (111) are clearance-matched, a positioning groove (70) is provided on the reversing assembly, the steering water spray pipe (33) is placed in the positioning groove (70), and a positioning ring (122) with at least two positioning protrusions (1221) is provided on the lower base (12), and the reversing assembly can abut against one of two adjacent positioning protrusions (1221) each time to change the moving direction of the steering water spray pipe (33), thereby changing the water sprayed from the steering water spray pipe (33) to drive the steering wheel (31) to drive the worm (32) to rotate.

10. The quick-connectable rotary spray gun according to claim 7, characterized in that: The toothed disc (121) is provided with a plurality of through holes (1210) arranged along its circumference. The lower end of the water inlet pipe (100) is rotatably and sealingly connected to the lower base (12), and the upper end is fixedly connected to the upper base (11). The toothed disc (121) is rotatably sleeved on the lower base (12). The lower base (12) is provided with a retractable limit assembly (13). The limit assembly (13) can extend into the through hole (1210) so that the toothed disc (121) is fixed on the lower base (12). The limit assembly (13) can also be separated from the through hole (1210) so that the transmission rod (5) drives the toothed disc (121) to rotate. The male joint (91) is provided with an avoidance hole (914) for avoiding the limit assembly (13).

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