CN215935811U - Electric control hydraulic sprinkler - Google Patents
Electric control hydraulic sprinkler Download PDFInfo
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- CN215935811U CN215935811U CN202121789188.4U CN202121789188U CN215935811U CN 215935811 U CN215935811 U CN 215935811U CN 202121789188 U CN202121789188 U CN 202121789188U CN 215935811 U CN215935811 U CN 215935811U
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Abstract
The utility model discloses an electric control hydraulic sprinkler which comprises a frame, a base, a remote control device, a control device, wheels, a wheel lifting device, a ground shovel telescopic device, a supporting device and a rotary driving mechanism, wherein the base is arranged on the frame; wherein the remote control device is adapted to be operated to emit a corresponding remote control signal; the control device is respectively in control connection with the ground shovel telescopic device, the wheel lifting device, the supporting device and the rotary driving mechanism and is suitable for receiving corresponding remote control signals sent by the remote control device so as to control at least one of the ground shovel telescopic device, the wheel lifting device, the supporting device and the rotary driving mechanism to act; the base is rotatably connected to the lower end part of the rack; the rotary driving mechanism is connected between the base and the frame and is suitable for acting under the control of the control device to drive the frame and the base to rotate relatively. The utility model can remotely control the action of the sprinkler, thereby improving the use convenience.
Description
Technical Field
The utility model relates to an electric control hydraulic sprinkler.
Background
At present, a sprinkler is irrigation equipment which is widely applied in agriculture. A series of preparation operations need to be done to the sprinkling machine before the sprinkling machine executes the sprinkling task, and at present, the preparation operations need to be controlled and operated by the hands of workers on the sprinkling machine, so that the sprinkling machine cannot be remotely operated and is very inconvenient to use.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides an electric control hydraulic sprinkler which can remotely control the action of the sprinkler and improve the use convenience.
In order to solve the technical problems, the technical scheme of the utility model is as follows: an electric control hydraulic sprinkler comprises a frame, a base, a remote control device, a control device, wheels, a wheel lifting device, a ground shovel telescopic device, a supporting device and a rotary driving mechanism; wherein the content of the first and second substances,
the remote control device is suitable for being operated to send out a corresponding remote control signal;
the control device is respectively in control connection with the ground shovel telescopic device, the wheel lifting device, the supporting device and the rotary driving mechanism and is suitable for receiving corresponding remote control signals sent by the remote control device so as to control at least one of the ground shovel telescopic device, the wheel lifting device, the supporting device and the rotary driving mechanism to act;
the base is rotatably connected to the lower end part of the rack;
the rotary driving mechanism is connected between the base and the frame and is suitable for acting under the control of the control device to drive the frame and the base to rotate relatively;
the ground shovel is connected to the ground shovel telescopic device;
the ground shovel telescopic device is connected to the frame and is suitable for being stretched under the control of the control device so as to drive the ground shovel to move to be inserted into the ground;
the wheels are connected to the wheel lifting device;
the wheel lifting device is connected to the rear end part of the frame and is suitable for acting under the control of the control device to drive the wheels to move upwards so as to enable the base to land or suitable for acting under the control to drive the wheels to move downwards to support the rear end part of the frame and enable the base to lift off;
the supporting device is connected to the front end part of the frame and is suitable for being contracted under the control of the control device to enable the base to be grounded or suitable for being controlled to be stretched to support the front end part of the frame and enable the base to be lifted.
Further provides a specific scheme of the remote control device, and the remote control device can be a remote controller or a mobile phone or a tablet computer.
Further provides a concrete scheme of the rotary driving mechanism, wherein the rotary driving mechanism comprises a hydraulic motor, a gear ring and a gear;
the gear ring is connected to any one of the base and the frame;
the hydraulic motor is connected to the other of the base and the frame;
the gear is connected to an output shaft of the hydraulic motor and is meshed with the gear ring;
the wheel lifting device comprises a lifting oil cylinder, the lifting oil cylinder is connected to the rack, and the wheels are connected to the lifting oil cylinder;
the ground shovel telescopic device comprises a telescopic oil cylinder, the telescopic oil cylinder is connected to the rack, and the ground shovel is connected to the telescopic oil cylinder;
the supporting device comprises a supporting oil cylinder which is connected to the front end part of the machine frame and is suitable for being controlled to contract so as to enable the base to be grounded or suitable for being controlled to extend so as to support the front end part of the machine frame and enable the base to be lifted.
Further provides a concrete scheme of the control device, the control device comprises a controller, an oil pump, a driving part, an oil tank and at least one control valve; wherein the content of the first and second substances,
the inlet of the oil pump is communicated with the oil tank;
the driving part is connected with the oil pump and is suitable for acting to drive the oil pump to operate so as to pump the hydraulic oil in the oil tank;
the outlet of the oil pump is respectively connected with the hydraulic motor, the lifting oil cylinder, the telescopic oil cylinder and the supporting oil cylinder through corresponding oil conveying pipes;
the oil conveying pipe is connected with a corresponding control valve;
the controller is connected with the control valve in a control mode and is suitable for controlling the on-off of the corresponding control valve according to the received corresponding remote control signal, and then the on-off of the corresponding oil conveying pipe is controlled so as to control the actions of the hydraulic motor, the lifting oil cylinder, the telescopic oil cylinder and the supporting oil cylinder.
Further, the controller is a PLC controller.
The specific scheme of the driving part is further provided, the driving part is an internal combustion engine, and the internal combustion engine is in transmission connection with the oil pump and is suitable for driving the oil pump to act.
Furthermore, the electric control hydraulic sprinkler also comprises a generator and a storage battery; wherein the content of the first and second substances,
the internal combustion engine is also connected with the generator and is suitable for driving the generator to act to generate electricity;
the storage battery is connected with the generator to store electric energy.
Furthermore, the electric control hydraulic sprinkler also comprises an electric push rod; wherein the content of the first and second substances,
the electric push rod is connected with an accelerator of the internal combustion engine;
the controller is in control connection with the electric push rod and is suitable for controlling the electric push rod to act according to the received corresponding remote control signal.
Furthermore, the electric control hydraulic sprinkler also comprises a starter; wherein the content of the first and second substances,
the starter is connected with the internal combustion engine;
the controller is in control connection with the starter and is suitable for controlling the starter to act according to the received corresponding remote control signal so as to drive the internal combustion engine to start.
Furthermore, the remote control device is provided with a start key, a work key, a deceleration stop key, a ground shovel down-to-ground key, a ground shovel up-to-ground key, a wheel down-to-wheel key, a wheel up-to-wheel key, a support down-to-ground key, a support up-to-ground key, a left-handed key and a right-handed key.
After the technical scheme is adopted, the remote control device is operated to send different remote control signals, and the control device receives the corresponding remote control signals sent by the remote control device to control the ground shovel telescopic device, the wheel lifting device, the supporting device and the rotary driving mechanism to perform corresponding actions, so that the action of the remote control sprinkler is realized, and the use convenience is improved. Specifically, under the control of the control device, firstly, the wheel lifting device drives the wheel to move upwards, and the supporting device acts to contract, so that the base lands; then the rotary driving mechanism drives the rack to rotate to a proper direction relative to the base; then the ground shovel telescoping device extends to drive the ground shovel to move to be inserted into the ground; at this point the preparation operation is complete and the sprinkler irrigation operation can proceed. After the sprinkling irrigation is finished, the remote control device is operated to send a remote control signal to the control device, the control device sequentially controls the ground shovel telescopic device to contract so as to withdraw the ground shovel, controls the rotary driving mechanism to act so as to drive the rack to rotate to an initial position, controls the wheel lifting device to act so as to drive the wheels to move downwards and simultaneously control the supporting device to act so as to extend, and further supports the rack so that the base is lifted off to reach the walking transportation height.
Drawings
FIG. 1 is a schematic structural view of an electrically controlled hydraulic sprinkler of the present invention;
FIG. 2 is a schematic structural view of the frame of the present invention;
fig. 3 is a schematic structural diagram of the base of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the utility model briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1 to 3, an electric control hydraulic sprinkler comprises a frame 1, a base 2, a remote control device, a control device, wheels 3, a wheel lifting device 100, a ground shovel 4, a ground shovel telescopic device 200, a supporting device 300 and a rotary driving mechanism; wherein the content of the first and second substances,
the remote control device is suitable for being operated to send out a corresponding remote control signal;
the control device is respectively in control connection with the ground shovel telescoping device 200, the wheel lifting device 100, the supporting device 300 and the rotary driving mechanism and is suitable for receiving corresponding remote control signals sent by the remote control device so as to control at least one of the ground shovel telescoping device 200, the wheel lifting device 100, the supporting device 300 and the rotary driving mechanism to act;
the base 2 is rotatably connected to the lower end part of the frame 1; in the embodiment, the base 2 is rotatably connected to the bottom of the frame 1 through a turntable;
the rotary driving mechanism is connected between the base 2 and the frame 1 and is suitable for acting under the control of the control device to drive the frame 1 and the base 2 to rotate relatively;
the ground shovel 4 is connected to the ground shovel telescopic device 200;
the ground shovel telescoping device 200 is connected to the frame 1 and is adapted to be extended under the control of the control device to drive the ground shovel 4 to move into the ground;
the wheel 3 is connected to the wheel lifting device 100;
the wheel lifting device 100 is connected to the rear end of the frame 1, and the wheel lifting device 100 is suitable for being operated under the control of the control device to drive the wheel 3 to move upwards so as to enable the base 2 to be grounded or suitable for being operated under the control of the control device to drive the wheel 3 to move downwards so as to support the rear end of the frame 1 and enable the base 2 to be grounded;
the supporting device 300 is connected to the front end of the frame 1, the supporting device 300 is suitable for being contracted under the control of the control device to enable the base 2 to be grounded or suitable for being controlled to be stretched to support the front end of the frame 1 and enable the base 2 to be lifted; specifically, the remote control device is operated to send different remote control signals, and the control device receives the corresponding remote control signals sent by the remote control device to control the ground shovel telescopic device 200, the wheel lifting device 100, the supporting device 300 and the rotary driving mechanism to perform corresponding actions, so that the action of the remote control sprinkler is realized, and the use convenience is improved.
Specifically, the remote control device may be a remote controller, a mobile phone or a tablet computer; in this embodiment, the remote control device is a remote controller.
As shown in FIGS. 1-3, the rotary drive mechanism is, for example, but not limited to, a structure including a hydraulic motor 5, a ring gear 6, and a gear;
the ring gear 6 is connected to any one of the base 2 and the frame 1;
the hydraulic motor 5 is connected to the other one of the base 2 and the frame 1;
the gear is connected to an output shaft of the hydraulic motor 5 and is meshed with the gear ring 6, so that the hydraulic motor 5 drives the gear to rotate, the gear ring 6 is driven to rotate, and the rack 1 is driven to rotate relative to the base 2; in the present embodiment, the ring gear 6 is connected to the base 2, and the hydraulic motor 5 is connected to the frame 1.
The wheel lifting device 100 may include a lifting cylinder 7, the lifting cylinder 7 is connected to the frame 1, and the wheels 3 are connected to the lifting cylinder 7;
the ground shovel telescoping device 200 can comprise a telescoping oil cylinder 8, wherein the telescoping oil cylinder 8 is connected to the frame 1, and the ground shovel 4 is connected to the telescoping oil cylinder 8;
the supporting device 300 may include a supporting cylinder 9, wherein the supporting cylinder 9 is connected to the front end portion of the frame 1 and is adapted to be controlled to contract to ground the base 2 or to be controlled to extend to support the front end portion of the frame 1 and lift the base 2; in this embodiment, two wheels 3 are provided, the two wheels 3 are connected through a wheel axle, and two lift cylinders 7 are provided, wherein one lift cylinder 7 is connected to the left side of the frame 1, and the other lift cylinder 7 is connected to the right side of the frame 1; the ground shovels 4 correspond to the telescopic oil cylinders 8 one by one and are respectively provided with two.
As shown in fig. 1 to 3, the control device is, for example, but not limited to, a structure including a controller, an oil pump 10, a driving part 11, an oil tank 12, and at least one control valve 13; wherein the content of the first and second substances,
an inlet of the oil pump 10 is communicated with the oil tank 12;
the driving part 11 is connected with the oil pump 10 and is suitable for acting to drive the oil pump 10 to operate so as to pump the hydraulic oil in the oil tank 12;
the outlet of the oil pump 10 is respectively connected with the hydraulic motor 5, the lifting oil cylinder 7, the telescopic oil cylinder 8 and the supporting oil cylinder 9 through corresponding oil pipelines;
the oil delivery pipe is connected with a corresponding control valve 13;
the controller is provided with a receiving module which is suitable for receiving a remote control signal sent by the remote control device, is in control connection with the control valve 13 and is suitable for controlling the on-off of the corresponding control valve 13 according to the received corresponding remote control signal so as to control the on-off of the corresponding oil delivery pipe so as to control the actions of the hydraulic motor 5, the lifting oil cylinder 7, the telescopic oil cylinder 8 and the supporting oil cylinder 9; specifically, the control valve 13 may be a solenoid valve; the actions of the hydraulic motor 5, the lifting oil cylinder 7, the telescopic oil cylinder 8 and the supporting oil cylinder 9 are all realized by controlling the on-off of the corresponding control valve 13 through a controller, and the hydraulic motor 5, the lifting oil cylinder 7, the telescopic oil cylinder 8 and the supporting oil cylinder 9 respectively correspond to one control valve 13; the specific structure of the oil pump 10 is the prior art well known to those skilled in the art, and is not described in detail in this embodiment.
In this embodiment, the controller may be a PLC controller.
Specifically, the driving component 11 may be an internal combustion engine, and the internal combustion engine is in transmission connection with the oil pump 10 and is adapted to drive the oil pump 10 to move; specifically, the internal combustion engine may be a diesel engine, and the diesel engine is in transmission connection with the oil pump 10 through a belt.
In this embodiment, the electrically-controlled hydraulic sprinkler may further include a generator 14 and a battery 15; wherein the content of the first and second substances,
the internal combustion engine is also connected with the generator 14 and is suitable for driving the generator 14 to act to generate electricity;
the battery 15 is connected with the generator 14 to store electric energy; specifically, the battery 15 can supply power for a complete machine control system in the electric control hydraulic sprinkler.
In this embodiment, the electrically controlled hydraulic sprinkler may further include an electric push rod; wherein the content of the first and second substances,
the electric push rod is connected with an accelerator of the internal combustion engine;
the controller is in control connection with the electric push rod and is suitable for controlling the electric push rod to act according to the received corresponding remote control signal so as to control the size of an accelerator to adjust the rotating speed of the internal combustion engine; specifically, the battery 15 can also supply power to the electric push rod.
In this embodiment, the electrically controlled hydraulic sprinkler may further include a starter; wherein the content of the first and second substances,
the starter is connected with the internal combustion engine;
the controller is in control connection with the starter and is suitable for controlling the starter to act according to the received corresponding remote control signal so as to drive the internal combustion engine to start.
In this embodiment, the remote control device may be provided with a start key, a work key, a deceleration stop key, a ground shovel lower key, a ground shovel raising key, a wheel lower key, a wheel raising key, a support lowering key, a support raising key, a left-handed key, and a right-handed key; specifically, a start key is pressed, the controller controls the starter to act, the internal combustion engine is driven to start, the start key is released, the starter stops acting, and the internal combustion engine keeps in an idling state;
pressing down a working key, wherein the controller controls the electric push rod to act to increase an accelerator, so that the oiling rotating speed of the internal combustion engine is increased, and the working key is loosened, so that the current position of the electric push rod is fixed and unchanged;
pressing down a deceleration stop key, and enabling the electric push rod to act to turn down the accelerator of the internal combustion engine until the internal combustion engine stops working;
pressing a key under the ground shovel, and extending the telescopic oil cylinder 8 to push the ground shovel 4 out until the ground shovel is inserted into the ground;
when a ground shovel lifting key is pressed down, the telescopic oil cylinder 8 contracts to drive the ground shovel 4 to retract;
pressing a wheel down key and a support descending key, wherein the lifting oil cylinder 7 and the support oil cylinder 9 both extend out and support the rack 1, so that the base 2 is lifted off the ground to reach the walking and transporting height;
pressing a wheel lifting key and a support lifting key, wherein the lifting oil cylinder 7 and the support oil cylinder 9 are both contracted to enable the base 2 to land on the ground to reach a sprinkling irrigation rotating state;
pressing a left-handed key, actuating the hydraulic motor 5 to drive the rack 1 to rotate leftwards to a proper position, and then releasing the left-handed key to stop actuating the hydraulic motor 5;
and when the right-handed key is pressed, the hydraulic motor 5 acts to drive the rack 1 to rotate rightwards to a proper position, and then the right-handed key is released, and the hydraulic motor 5 stops acting.
The working principle of the utility model is as follows:
through operating the remote control device to send different remote control signals, the control device receives corresponding remote control signals sent by the remote control device to control the ground shovel telescopic device 200, the wheel lifting device 100, the supporting device 300 and the rotary driving mechanism to do corresponding actions, so that the action of remotely controlling the sprinkling machine is realized, and the use convenience is improved. Specifically, under the control of the control device, firstly, the wheel lifting device 100 drives the wheel 3 to move upwards, and the supporting device 300 acts to contract, so that the base 2 lands; then the rotary driving mechanism drives the frame 1 to rotate to a proper direction relative to the base 2; the ground shovel retraction device 200 is then extended to drive the ground shovel 4 to move into the ground; at this point the preparation operation is complete and the sprinkler irrigation operation can proceed. After the sprinkling irrigation is finished, the remote control device is operated to send a remote control signal to the control device, the control device sequentially controls the ground shovel telescopic device 200 to contract so as to retract the ground shovel 4, controls the rotary driving mechanism to act so as to drive the rack 1 to rotate to an initial position, controls the wheel lifting device 100 to act so as to drive the wheels 3 to move downwards and control the supporting device 300 to act so as to extend out, and further supports the rack 1 so as to enable the base 2 to be lifted off the ground to reach the walking transportation height.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electric control hydraulic sprinkler is characterized by comprising a frame (1), a base (2), a remote control device, a control device, wheels (3), a wheel lifting device (100), a ground shovel (4), a ground shovel telescopic device (200), a supporting device (300) and a rotary driving mechanism; wherein the content of the first and second substances,
the remote control device is suitable for being operated to send out a corresponding remote control signal;
the control device is respectively in control connection with the ground shovel telescopic device (200), the wheel lifting device (100), the supporting device (300) and the rotary driving mechanism and is suitable for receiving corresponding remote control signals sent by the remote control device so as to control at least one of the ground shovel telescopic device (200), the wheel lifting device (100), the supporting device (300) and the rotary driving mechanism to act;
the base (2) is rotatably connected to the lower end part of the rack (1);
the rotary driving mechanism is connected between the base (2) and the frame (1) and is suitable for acting under the control of the control device to drive the frame (1) and the base (2) to rotate relatively;
the ground shovel (4) is connected to the ground shovel telescopic device (200);
the ground shovel telescopic device (200) is connected to the frame (1) and is suitable for being stretched under the control of the control device to drive the ground shovel (4) to move to be inserted into the ground;
the wheels (3) are connected to the wheel lifting device (100);
the wheel lifting device (100) is connected to the rear end part of the frame (1), and the wheel lifting device (100) is suitable for acting under the control of the control device to drive the wheel (3) to move upwards to enable the base (2) to be grounded or suitable for acting under the control to drive the wheel (3) to move downwards to prop up the rear end part of the frame (1) and enable the base (2) to be grounded;
the supporting device (300) is connected to the front end part of the machine frame (1), and the supporting device (300) is suitable for being contracted under the control of the control device to enable the base (2) to be grounded or suitable for being controlled to be stretched to support the front end part of the machine frame (1) and enable the base (2) to be lifted.
2. An electrically controlled hydraulic sprinkler according to claim 1, characterized in that the remote control device may be a remote control or a mobile phone or a tablet computer.
3. An electrically controlled hydraulic sprinkler according to claim 1,
the rotary driving mechanism comprises a hydraulic motor (5), a gear ring (6) and a gear;
the gear ring (6) is connected to any one of the base (2) and the frame (1);
the hydraulic motor (5) is connected to the other one of the base (2) and the frame (1);
the gear is connected to an output shaft of the hydraulic motor (5) and is meshed with the gear ring (6);
the wheel lifting device (100) comprises a lifting oil cylinder (7), the lifting oil cylinder (7) is connected to the rack (1), and the wheels (3) are connected to the lifting oil cylinder (7);
the ground shovel telescopic device (200) comprises a telescopic oil cylinder (8), the telescopic oil cylinder (8) is connected to the rack (1), and the ground shovel (4) is connected to the telescopic oil cylinder (8);
the supporting device (300) comprises a supporting oil cylinder (9), wherein the supporting oil cylinder (9) is connected to the front end part of the machine frame (1) and is suitable for being controlled to contract so as to enable the base (2) to land or being controlled to extend so as to support the front end part of the machine frame (1) and enable the base (2) to lift off.
4. An electrically controlled hydraulic sprinkler according to claim 3, characterized in that the control means comprise a controller, an oil pump (10), a drive member (11), an oil tank (12) and at least one control valve (13); wherein the content of the first and second substances,
the inlet of the oil pump (10) is communicated with the oil tank (12);
the driving part (11) is connected with the oil pump (10) and is suitable for acting to drive the oil pump (10) to operate so as to pump hydraulic oil in the oil tank (12);
the outlet of the oil pump (10) is respectively connected with the hydraulic motor (5), the lifting oil cylinder (7), the telescopic oil cylinder (8) and the supporting oil cylinder (9) through corresponding oil conveying pipes;
the oil delivery pipe is connected with a corresponding control valve (13);
the controller is provided with a receiving module suitable for receiving a remote control signal sent by the remote control device, is in control connection with the control valve (13) and is suitable for controlling the on-off of the corresponding control valve (13) according to the received corresponding remote control signal, and further controls the on-off of the corresponding oil delivery pipe so as to control the actions of the hydraulic motor (5), the lifting oil cylinder (7), the telescopic oil cylinder (8) and the supporting oil cylinder (9).
5. An electrically controlled hydraulic sprinkler according to claim 4, characterized in that the controller is a PLC controller.
6. An electrically controlled hydraulic sprinkler according to claim 4, characterized in that the drive member (11) is an internal combustion engine drivingly connected to the oil pump (10) and adapted to drive the oil pump (10) in motion.
7. An electrically controlled hydraulic sprinkler according to claim 6, characterized in that it further comprises a generator (14) and a battery (15); wherein the content of the first and second substances,
the internal combustion engine is also connected with the generator (14) and is suitable for driving the generator (14) to act to generate electricity;
the battery (15) is connected with the generator (14) to store electric energy.
8. The electrically controlled hydraulic sprinkler according to claim 6, further comprising an electric push rod; wherein the content of the first and second substances,
the electric push rod is connected with an accelerator of the internal combustion engine;
the controller is in control connection with the electric push rod and is suitable for controlling the electric push rod to act according to the received corresponding remote control signal.
9. The electrically controlled hydraulic sprinkler according to claim 6, further comprising a starter; wherein the content of the first and second substances,
the starter is connected with the internal combustion engine;
the controller is in control connection with the starter and is suitable for controlling the starter to act according to the received corresponding remote control signal so as to drive the internal combustion engine to start.
10. The electrically controlled hydraulic sprinkler according to claim 1, wherein the remote control device is provided with a start key, a work key, a deceleration stop key, a ground shovel down-to-down key, a ground shovel up-to-down key, a wheel down-to-down key, a support up key, a left-handed key, and a right-handed key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121789188.4U CN215935811U (en) | 2021-08-02 | 2021-08-02 | Electric control hydraulic sprinkler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121789188.4U CN215935811U (en) | 2021-08-02 | 2021-08-02 | Electric control hydraulic sprinkler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215935811U true CN215935811U (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121789188.4U Active CN215935811U (en) | 2021-08-02 | 2021-08-02 | Electric control hydraulic sprinkler |
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| Country | Link |
|---|---|
| CN (1) | CN215935811U (en) |
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2021
- 2021-08-02 CN CN202121789188.4U patent/CN215935811U/en active Active
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