Self-rotating spray gun device

Abstract

The present invention provides a self-rotating spray gun device, comprising: a base, a rotating cover, a first worm gear mechanism, a reversing drive mechanism, a spray gun, a second worm gear mechanism, an impeller device and a water-displacing mechanism; the rotating cover is rotatably mounted on the base through the first worm gear mechanism; the reversing drive mechanism is mounted on the side of the rotating cover, and is used to drive the first worm gear mechanism to achieve reciprocating rotation of the rotating cover; the spray gun is fixedly mounted on the rotating cover, the second worm gear mechanism and the impeller device are mounted on the spray gun, the impeller device is connected to the second worm gear mechanism through a transmission rod, and the second worm gear mechanism is connected to the reversing drive mechanism through a transmission rod, and the water-displacing mechanism can be driven by the reversing drive mechanism. After the self-rotating spray gun device of the present invention is connected to a water source, the power source for the operation of the entire device comes from the water source, and no additional power drive is required, that is, it can achieve water spraying, water displacing, and automatic reciprocating rotation.

Description

Technical Field

[0001] The invention relates to the technical field of irrigation, and in particular to a self-rotating spray gun device. Background Art

[0002] Spray guns are commonly used for irrigation in agriculture and gardening. They can effectively improve the utilization rate of water resources and achieve water-saving irrigation effects with greater efforts.

[0003] At present, the existing spray gun device has a rotation function, and is often rotated by electric drive, which is not convenient to install and has a limited service life. In addition, the rotation range of the existing spray gun device is usually fixed, and the rotation of the spray gun cannot be adjusted according to actual needs. At the same time, the existing spray gun device is large in size and is not convenient to use. Summary of the invention

[0004] The purpose of the present invention is to provide a self-rotating spray gun device in view of the technical defects existing in the prior art.

[0005] The technical solution adopted to achieve the purpose of the present invention is:

[0006] A self-rotating spray gun device comprises: a base, a rotating cover, a first worm gear mechanism, a reversing drive mechanism, a spray gun, a second worm gear mechanism, a transmission rod, an impeller device and a reversing limiter;

[0007] The rotary cover is rotatably mounted on the base through a first worm gear mechanism;

[0008] The reversing drive mechanism is installed on the side of the rotary cover, and the reversing drive mechanism includes a mounting shaft, a main bevel gear, a pair of movable bevel gears, a slave bevel gear and a toggle mechanism, wherein the mounting shaft is a square shaft, the pair of movable bevel gears is slidably mounted on the mounting shaft, the pair of movable bevel gears includes an intermediate ring and a left bevel gear and a right-left bevel gear symmetrically arranged on both sides of the intermediate ring, and the intermediate ring, the left bevel gear and the right-left bevel gear are connected as a whole through a connecting rod; the slave bevel gear is fixedly mounted on the end of the mounting shaft, and the slave bevel gear is meshed with the first bevel gear at the end of the first worm of the first worm gear mechanism; the main bevel gear is located between the left bevel gear and the right-left bevel gear; the toggle mechanism cooperates with the intermediate ring of the pair of movable bevel gears, and the intermediate ring can be toggled by the toggle mechanism, thereby switching the main bevel gear to mesh with the left bevel gear or the right-left bevel gear, so as to control the forward or reverse rotation of the mounting shaft, and then drive the first worm of the first worm gear mechanism to rotate forward or reverse, so as to realize driving the rotary cover to perform reciprocating rotation;

[0009] The reversing limiter is installed on the base and is used to trigger the toggle mechanism to toggle the middle ring;

[0010] The spray gun is fixedly mounted on the rotary cover, the second worm gear mechanism and the impeller device are mounted on the spray gun, the impeller device is transmission-connected to the second worm gear mechanism, and the second worm gear mechanism is connected to the main bevel gear of the reversing drive mechanism through a transmission rod.

[0011] In the above technical solution, the rotating cover is rotatably mounted on the base, and the first worm gear mechanism includes a first worm wheel, a first worm and a first bevel gear, wherein the first worm wheel is fixedly mounted on the base, the first worm is mounted on the rotating cover, and the first bevel gear is fixed on the end of the first worm; when the first bevel gear is driven to rotate, the first worm drives the rotating cover to rotate circumferentially along the first worm wheel.

[0012] In the above technical solution, the second worm gear mechanism includes a second worm and a second worm wheel that are meshed with each other, the second worm is connected to the rotating shaft of the impeller device, the second worm wheel is connected to one end of the transmission rod, and the other end of the transmission rod is connected to the main bevel gear of the reversing drive mechanism.

[0013] In the above technical solution, the impeller device and the spray gun are connected to the water inlet pipe, and the water inlet pipe is installed on the side wall of the spray gun. Under the action of the water pressure of the water inlet pipe, the impeller device is driven to rotate, and then the impeller device drives the second worm gear mechanism, the second worm gear mechanism drives the transmission rod to rotate, and the transmission rod drives the main bevel gear of the reversing drive mechanism to operate.

[0014] In the above technical solution, the shifting mechanism includes a top shift fork, a hinge head, a spring, a limit column and a bottom shift rod which are sequentially connected from top to bottom. The top shift fork is located in the groove of the middle ring of the shiftable bevel gear pair. The limit column is slidably mounted on the upper surface of a circle of truncated cones on the base, and the outer end of the limit column is mounted on the rotating cover and will move with the rotating cover. Under the action of the limit column, the spring is always in a bent and compressed state. Under the action of the spring, the top shift fork keeps applying a deflection force to the middle ring, and the direction of the deflection force of the top shift fork on the middle ring is changed by triggering the bottom shift rod, thereby switching the meshing state of the left bevel gear and the right-left bevel gear of the shiftable bevel gear pair with the main bevel gear.

[0015] In the above technical solution, the installation position of the reversing limiter on the base is adjustable, thereby adjusting the reciprocating rotation stroke of the rotary cover.

[0016] In the above technical solution, the reversing limit member includes at least a left limit member and a right limit member. When the rotating cover rotates in the positive direction to reach the left limit member position, the bottom lever of the toggle mechanism is triggered by the left limit member, so that the toggle mechanism drives the reversing drive mechanism to reverse, thereby causing the rotating cover to rotate in the reverse direction; when the rotating cover rotates in the direction to reach the right limit member position, the bottom lever of the toggle mechanism is triggered by the right limit member, so that the toggle mechanism drives the reversing drive mechanism to reverse again, thereby causing the rotating cover to rotate in the positive direction; this reciprocating process is repeated to realize the reciprocating rotational motion of the rotating cover.

[0017] In the above technical solution, the self-rotating spray gun device also includes a water-displacing mechanism, and the power source of the water-displacing mechanism comes from the reversing drive mechanism.

[0018] In the above technical scheme, the water-dipping mechanism includes a water-dipping rod, which is rotatably mounted on the side wall of the spray gun, the front end of the water-dipping rod is bent and located at the front end of the nozzle of the spray gun, the tail end of the water-dipping rod is located above the reversing drive mechanism, and a cam is arranged at the end of the mounting shaft of the reversing drive mechanism. A support arm is connected to the water-dipping rod, the support arm is connected to a push rod, the bottom of the push rod is in contact with the cam, and a torsion spring is arranged at the hinge between the support arm and the tail end of the water-dipping rod.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. After the self-rotating spray gun device of the present invention is connected to a water source, the power source for the operation of the entire device comes from the water source, and no additional power drive is required, that is, it can spray water, push water (break up the water column), and automatically reciprocate.

[0021] 2. The entire device is completely mechanically constructed, without the need for a complex electrical control system or power supply. Therefore, it works more stably, has a long service life, and is low in cost. More importantly, since it does not require power supply, it can be easily installed in any desired location, and has a wider range of uses.

[0022] 3. The self-rotating spray gun device of the present invention can adjust the reciprocating rotation stroke of the rotating cover according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Shown is a schematic diagram of the overall structure of the self-rotating spray gun device of the present invention.

[0024] Figure 2 Shown is a rear view of the self-rotating spray gun device of the present invention.

[0025] Figure 3 Shown is a partial enlarged view of the present invention.

[0026] Figure 4The figure shows a schematic top view of the first worm gear mechanism and the reversing drive mechanism in the present invention.

[0027] Figure 5 Shown is a three-dimensional structural schematic diagram of the first worm gear mechanism and the reversing drive mechanism in the present invention.

[0028] Figure 6 Shown is a schematic structural diagram of the reversing drive mechanism in the present invention.

[0029] Figure 7 Shown is a working principle diagram of the reversing drive mechanism in the present invention.

[0030] Figure 8 Shown is a working principle diagram of the reversing drive mechanism in the present invention. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] A self-rotating spray gun device, referring to the attached drawings, comprises: a base 1, a rotating cover 2, a first worm gear mechanism 3, a reversing drive mechanism 4, a spray gun 5, a suspension device 6, a second worm gear mechanism 7, a transmission rod 8, an impeller device 9 and a reversing limiter 10.

[0033] The rotating cover 2 is rotatably mounted on the base 1 through the first worm gear mechanism 3. Specifically, the rotating cover 2 is rotatably mounted on the base 1. The first worm gear mechanism 3 includes a first worm wheel 3-1, a first worm 3-2 and a first bevel gear 3-3, wherein the first worm wheel 3-1 is fixedly mounted on the base 1, the first worm 3-2 is mounted on the rotating cover 2, and the first bevel gear 3-3 is fixed to the end of the first worm 3-2; when the first bevel gear 3-3 is driven to rotate, the first worm 3-2 rotates synchronously. Since the first worm wheel 3-1 is fixed on the base 1, when the first worm 3-2 rotates, the first worm 3-2 will drive the rotating cover 2 to rotate circumferentially along the first worm wheel 3-1.

[0034] The reversing drive mechanism 4 is installed on the side of the rotating cover 2, and is used to drive the first bevel gear 3-3 of the first worm gear mechanism to rotate forward or reverse, thereby driving the rotating cover 2 to perform reciprocating rotation. Figure 4 and 5The reversing drive mechanism 4 includes a mounting shaft 4-1, a main bevel gear 4-2, a movable bevel gear pair 4-3, a slave bevel gear 4-4 and a shifting mechanism 4-5. The mounting shaft 4-1 is a square shaft (i.e., the cross section of the shaft is square). The movable bevel gear pair 4-3 is slidably mounted on the mounting shaft 4-1 and can slide along the mounting shaft 4-1. The movable bevel gear pair 4-3 includes an intermediate ring 4-31 and a left bevel gear 4-32 and a right-left bevel gear 4-33 symmetrically arranged on both sides of the intermediate ring 4-31. The intermediate ring 4-31, the left bevel gear 4-32 and the right-left bevel gear 4-33 are connected as a whole by a connecting rod a. Body; the slave bevel gear 4-4 is fixedly mounted on the end of the mounting shaft 4-1, and the slave bevel gear 4-4 is meshed with the first bevel gear 3-3 of the first worm gear mechanism 3; the main bevel gear 4-2 is located between the left bevel gear 4-32 and the right-left bevel gear 4-33, and the middle ring 4-31 can be toggled by the toggle mechanism 4-5, thereby switching the main bevel gear 4-2 to mesh with the left bevel gear 4-32 or the right-left bevel gear 4-33, thereby controlling the forward or reverse rotation of the mounting shaft 4-1, realizing the forward or reverse rotation of the first bevel gear 3-3 of the first worm gear mechanism 3 driven by the slave bevel gear 4-4, and finally realizing the forward or reverse rotation of the rotary cover 2.

[0035] The spray gun 5 is fixedly mounted on the rotary cover 2, the second worm gear mechanism 7 is mounted on the lower part of the spray gun 5 through the suspension device 6, the impeller device 9 is mounted on the side of the spray gun 5, the second worm gear mechanism 7 includes a second worm and a second worm wheel meshing with each other, the second worm is connected to the rotating shaft of the impeller device 9, the second worm wheel is connected to one end of the transmission rod 8, and the other end of the transmission rod 8 is connected to the main bevel gear 4-2 of the reversing drive mechanism 4; the impeller device 9 and the spray gun 5 are connected to the water inlet pipe 11, and the water inlet pipe 11 is mounted on the side wall of the spray gun 5. Under the water pressure of the water inlet pipe 11, the impeller device 9 is driven to rotate, and then the impeller device 9 drives the second worm gear mechanism 7, the second worm gear mechanism 7 drives the transmission rod 8 to rotate, and the transmission rod 8 drives the main bevel gear 4-2 of the reversing drive mechanism 4 to operate.

[0036] The specific structure of the toggle mechanism 4-5 is shown in the attached Figure 5-8, including a top shift fork 4-51, a hinge head 4-52, a spring 4-53, a limit column 4-54 and a bottom shift rod 4-55 connected in sequence from top to bottom, the top shift fork 4-51 is located in the groove of the middle ring 4-31 of the movable bevel gear pair 4-3, the limit column 4-54 is slidably mounted on the upper surface of a circle of truncated cones 1-1 of the base 1, and the outer end of the limit column 4-54 is mounted on the rotating cover 2 and will move with the rotating cover 2. Under the action of the limit column 4-54, the spring 4-53 is always in a bent and compressed state. Under the action of the spring 4-53, the top shift fork 4-51 keeps applying a deflection force to the middle ring 4-31, and the deflection force direction of the top shift fork 4-51 on the middle ring 4-31 can be changed by triggering the bottom shift rod 4-55 (see attached Figure 7 and 8 , which are two different deflection states), thereby switching the meshing state of the left bevel gear 4-32 and the right-left bevel gear 4-33 of the movable bevel gear pair 4-3 with the main bevel gear 4-2, and finally realizing the reversal of the rotation direction of the slewing cover 2.

[0037] The reversing limiter 10 (see attached Figure 1 ) is installed on the base 1, and is used to trigger the bottom lever 4-55 of the toggle mechanism 4-5. Specifically, the reversing limit member 10 includes at least a left limit member and a right limit member. When the rotary cover 2 rotates in the positive direction to reach the left limit member position, the bottom lever 4-55 of the toggle mechanism 4-5 is triggered by the left limit member, so that the toggle mechanism 4-5 drives the reversing drive mechanism 4 to reverse, thereby causing the rotary cover 2 to rotate in the reverse direction; when the rotary cover 2 rotates in the direction to reach the right limit member position, the bottom lever 4-55 of the toggle mechanism 4-5 is triggered by the right limit member, so that the toggle mechanism 4-5 drives the reversing drive mechanism 4 to reverse again, thereby causing the rotary cover 2 to rotate in the positive direction; this reciprocating process is repeated to realize the reciprocating rotation of the rotary cover 2, that is, the reciprocating rotation of the spray gun 5 is realized.

[0038] In this embodiment, the installation position of the reversing limiter 10 on the base 1 is adjustable, so that the reciprocating rotation stroke of the rotary cover 2 can be adjusted.

[0039] Furthermore, the self-rotating spray gun device of the present invention also includes a water-dipping mechanism, and the power source of the water-dipping mechanism comes from the reversing drive mechanism 4, and no other power source needs to be provided separately. Specifically, the water-dipping mechanism includes a water-dipping rod 12, which is rotatably mounted on the side wall of the spray gun 5, the front end of the water-dipping rod 12 is bent and located at the front end of the nozzle 5-1 of the spray gun 5, and the tail end of the water-dipping rod 12 is located above the reversing drive mechanism 4. A cam 13 is provided at the end of the mounting shaft 4-1 of the reversing drive mechanism 4, and a support arm 14 is connected to the water-dipping rod 12. The support arm 14 is connected to a push rod 15, and the bottom of the push rod 15 is in contact with the cam 13 (the bottom of the push rod 15 has a chassis 15-1 to reduce the friction with the cam 13), and a torsion spring 16 is provided at the hinge between the support arm 14 and the tail end of the water-dipping rod 12. During operation, the mounting shaft 4 - 1 of the reversing drive mechanism 4 drives the cam 13 to rotate, and the cam 13 drives the water-displacing rod 12 to move through the push rod 15 to spread the water sprayed from the nozzle 5 - 1 of the spray gun 5 .

[0040] The invention has been described exemplarily. It should be noted that, without departing from the core of the invention, any simple deformation, modification or other equivalent replacement that can be made by those skilled in the art without expending creative labor falls within the protection scope of the invention.

Claims

1. A self-rotating spray gun device, characterized in that: include: A base, a rotary cover, a first worm gear mechanism, a reversing drive mechanism, a spray gun, a second worm gear mechanism, a transmission rod, an impeller device and a reversing limiter; The rotary cover is rotatably mounted on the base through a first worm gear mechanism; The reversing drive mechanism is installed on the side of the rotary cover, and the reversing drive mechanism includes a mounting shaft, a main bevel gear, a pair of movable bevel gears, a slave bevel gear and a toggle mechanism, wherein the mounting shaft is a square shaft, the pair of movable bevel gears is slidably mounted on the mounting shaft, the pair of movable bevel gears includes an intermediate ring and a left bevel gear and a right-left bevel gear symmetrically arranged on both sides of the intermediate ring, and the intermediate ring, the left bevel gear and the right-left bevel gear are connected as a whole through a connecting rod; the slave bevel gear is fixedly mounted on the end of the mounting shaft, and the slave bevel gear is meshed with the first bevel gear at the end of the first worm of the first worm gear mechanism; the main bevel gear is located between the left bevel gear and the right-left bevel gear; the toggle mechanism cooperates with the intermediate ring of the pair of movable bevel gears, and the intermediate ring can be toggled by the toggle mechanism, thereby switching the main bevel gear to mesh with the left bevel gear or the right-left bevel gear, so as to control the forward or reverse rotation of the mounting shaft, and then drive the first worm of the first worm gear mechanism to rotate forward or reverse, so as to realize driving the rotary cover to perform reciprocating rotation; The reversing limiter is installed on the base and is used to trigger the toggle mechanism to toggle the middle ring; The spray gun is fixedly mounted on the rotary cover, the second worm gear mechanism and the impeller device are mounted on the spray gun, the impeller device is transmission-connected to the second worm gear mechanism, and the second worm gear mechanism is connected to the main bevel gear of the reversing drive mechanism through a transmission rod; The impeller device and the spray gun are connected to a water inlet pipe, which is installed on the side wall of the spray gun. Under the water pressure of the water inlet pipe, the impeller device is driven to rotate, and then the impeller device drives the second worm gear mechanism, the second worm gear mechanism drives the transmission rod to rotate, and the transmission rod drives the main bevel gear of the reversing drive mechanism to operate; The shifting mechanism comprises a top shift fork, a hinged head, a spring, a limit column and a bottom shifting rod which are sequentially connected from top to bottom, wherein the top shift fork is located in a groove of the middle circular ring of the shiftable bevel gear pair, the limit column is slidably mounted on the upper surface of a circle of truncated cones of the base, and the outer end of the limit column is mounted on the rotating cover and moves with the rotating cover, and under the action of the limit column, the spring is always in a bent and compressed state, and under the action of the spring, the top shift fork keeps applying a deflection force to the middle circular ring, and the direction of the deflection force of the top shift fork on the middle circular ring is changed by triggering the bottom shifting rod, thereby switching the meshing state of the left bevel gear and the right-left bevel gear of the shiftable bevel gear pair with the main bevel gear; The rotary cover is rotatably mounted on the base, and the first worm gear mechanism comprises a first worm wheel, a first worm and a first bevel gear, wherein the first worm wheel is fixedly sleeved on the base, the first worm is mounted on the rotary cover, and the first bevel gear is fixed on the end of the first worm; when the first bevel gear is driven to rotate, the first worm drives the rotary cover to rotate along the circumference of the first worm wheel; The installation position of the reversing limiter on the base is adjustable, thereby adjusting the reciprocating rotation stroke of the rotary cover.

2. The self-rotating spray gun device according to claim 1, characterized in that: The second worm gear mechanism includes a second worm and a second worm wheel meshing with each other, the second worm is connected to the rotating shaft of the impeller device, the second worm wheel is connected to one end of the transmission rod, and the other end of the transmission rod is connected to the main bevel gear of the reversing drive mechanism.

3. The self-rotating spray gun device according to claim 1, characterized in that: The reversing limit member includes at least a left limit member and a right limit member. When the rotating cover rotates in the forward direction to reach the left limit member position, the bottom lever of the toggle mechanism is triggered by the left limit member, so that the toggle mechanism drives the reversing drive mechanism to reverse, thereby causing the rotating cover to rotate in the reverse direction; when the rotating cover rotates in the direction to reach the right limit member position, the bottom lever of the toggle mechanism is triggered by the right limit member, so that the toggle mechanism drives the reversing drive mechanism to reverse again, thereby causing the rotating cover to rotate in the forward direction; this reciprocating process is repeated to realize the reciprocating rotation motion of the rotating cover.

4. The self-rotating spray gun device according to claim 1, characterized in that: The self-rotating spray gun device also includes a water-displacing mechanism, and the power source of the water-displacing mechanism comes from the reversing drive mechanism.

5. The self-rotating spray gun device according to claim 4, characterized in that: The water-dipping mechanism includes a water-dipping rod, which is rotatably mounted on the side wall of the spray gun. The front end of the water-dipping rod is bent and located at the front end of the nozzle of the spray gun. The tail end of the water-dipping rod is located above the reversing drive mechanism. A cam is arranged at the end of the mounting shaft of the reversing drive mechanism. The water-dipping rod is connected to a support arm, which is connected to a push rod. The bottom of the push rod contacts the cam, and a torsion spring is arranged at the hinge between the support arm and the tail end of the water-dipping rod.

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