Real-time angle feedback structure for fire monitor

Abstract

The real-time angle feedback structure comprises a base, a rotary outer sleeve and a rotary inner sleeve are arranged at the top end of the base, the rotary inner sleeve is fixedly connected with the base, the rotary outer sleeve is arranged outside the rotary inner sleeve in a sleeving mode, a rotary connecting rod is arranged at the top of the rotary inner sleeve, and a bent pipe assembly is arranged at the top of the rotary outer sleeve. An absolute value angle sensor is arranged at the top of the bent pipe assembly, one end of the rotary connecting rod is connected with a rotating shaft of the absolute value angle sensor, a monitor head is arranged at one end of the bent pipe assembly, a worm and a motor are arranged in the middle of the rotary outer sleeve, the worm is connected with the rotary outer sleeve through a bearing, and a turbine matched with the worm is arranged on the outer wall of the rotary inner sleeve. The output end of the motor is connected with one end of the worm; through the arrangement of the integral structure, the real-time position of the fire monitor can be displayed every time the fire monitor is started, and deviation of an actual angle caused by a gap between a worm gear and a worm or inertia of a motor and the like is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting cannons, in particular to a real-time angle feedback structure that can be used for fire-fighting cannons. Background Art

[0002] The angle feedback of existing fire monitors is mostly achieved by: 1. Adding an encoder inside the motor to determine the angle of the monitor by the number of revolutions of the motor; 2. Using a stepper motor and a zero position to determine the angle of the monitor; 3. Determining the angle of the monitor by adding multiple turns of a resistor to the worm.

[0003] All of the above methods have the following concentrated problems: 1. Basically, the zero position needs to be calibrated, that is, each time the power is turned off, it is necessary to reset to zero once to determine the zero position before starting to calculate the angle; 2. When the motor is running, there is a gap in the worm, and the angle cannot be accurately calculated each time it is reversed. Moreover, because the motor has inertia, there will inevitably be a certain deviation each time the step is counted. Utility Model Content

[0004] In order to solve the defects in the prior art, the utility model provides a real-time angle feedback structure that can be used for fire monitors.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a real-time angle feedback structure which can be used for fire cannon, comprising a base, a rotating outer sleeve and a rotating inner sleeve are provided at the top of the base, the rotating inner sleeve is fixedly connected to the base, the rotating outer sleeve is sleeved on the outside of the rotating inner sleeve, a rotating connecting rod is provided at the top of the rotating inner sleeve, a bending pipe assembly is provided at the top of the rotating outer sleeve, an absolute angle sensor is provided at the top of the bending pipe assembly, one end of the rotating connecting rod is connected to the rotating shaft of the absolute angle sensor, one end of the bending pipe assembly is provided with a cannon head, a worm and a motor are provided in the middle of the rotating outer sleeve, the worm is connected to the rotating outer sleeve via a bearing, the outer wall of the rotating inner sleeve is provided with a turbine matched with the worm, and the output end of the motor is connected to one end of the worm.

[0007] As a preferred technical solution of the utility model, a steel ball is arranged between the rotating inner sleeve and the rotating outer sleeve, and the rotating outer sleeve is rotatably connected to the rotating inner sleeve via the steel ball.

[0008] As a preferred technical solution of the utility model, the rotary inner sleeve is threadedly connected to the rotary connecting rod, and epoxy resin glue is provided at the thread.

[0009] As a preferred technical solution of the utility model, the rotary connecting rod is connected to the rotating shaft of the absolute angle sensor via a set screw.

[0010] As a preferred technical solution of the present utility model, the absolute angle sensor is electrically connected to the control system.

[0011] The beneficial effects of the utility model are as follows: the real-time angle feedback structure that can be used for fire monitors is provided with a rotating outer sleeve and a rotating inner sleeve through the top of the base, the rotating inner sleeve is fixedly connected to the base, the rotating outer sleeve is arranged outside the rotating inner sleeve, a rotating connecting rod is arranged on the top of the rotating inner sleeve, a bending pipe assembly is arranged on the top of the rotating outer sleeve, an absolute angle sensor is arranged on the top of the bending pipe assembly, one end of the rotating connecting rod is connected to the rotating shaft of the absolute angle sensor, a worm is arranged in the middle of the rotating outer sleeve, a turbine matched with the worm is arranged on the outer wall of the rotating inner sleeve, and a starting motor drives the rotating shaft to rotate. As the worm rotates, the rotary connecting rod and the rotating shaft of the absolute angle sensor are fixed, the worm rotates around the circumference of the rotary inner sleeve, the worm drives the rotary outer sleeve, the curved pipe assembly, and the absolute angle sensor to rotate relative to the rotary inner sleeve, and the absolute angle sensor body and the absolute angle sensor rotating shaft rotate relative to each other. Because the absolute angle sensor can record the absolute position of its body and the rotating shaft, the utility model can display the real-time position of the fire monitor every time it is turned on, and will not cause actual angle deviation due to problems such as the gap between the worm gear and the motor inertia. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 This is a structural schematic diagram of a real-time angle feedback structure that can be used for a fire monitor in the utility model;

[0014] Figure 2 This is a schematic diagram of a worm connection structure of a real-time angle feedback structure that can be used for a fire monitor in the utility model;

[0015] Figure 3 It is a top view of a real-time angle feedback structure of the utility model that can be used for fire monitors in actual application.

[0016] In the figure: 1. worm; 2. base; 3. rotating outer sleeve; 4. rotating inner sleeve; 5. rotating connecting rod; 6. bending pipe assembly; 7. absolute angle sensor; 8. gun head; 9. motor. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0018] Example: Figure 1-2As shown, the utility model is a real-time angle feedback structure that can be used for fire monitors, including a base 2, the top of the base 2 is provided with a rotating outer sleeve 3 and a rotating inner sleeve 4, the rotating inner sleeve 4 is fixedly connected to the base 2, the rotating outer sleeve 3 is sleeved on the outside of the rotating inner sleeve 4, a steel ball is provided between the rotating inner sleeve 4 and the rotating outer sleeve 3, the rotating outer sleeve 3 is rotatably connected to the rotating inner sleeve 4 through the steel ball, ensuring that the rotating inner sleeve 4 and the rotating outer sleeve 3 form a single rotating pair. A rotating connecting rod 5 is provided on the top of the rotating inner sleeve 4, the rotating inner sleeve 4 is threadedly connected to the rotating connecting rod 5, and epoxy resin glue is provided at the thread to ensure the strength of the connection between the rotating inner sleeve 4 and the rotating connecting rod 5. The top of the rotating outer sleeve 3 is provided with a bend assembly 6, and the top of the bend assembly 6 is provided with an absolute angle sensor 7. One end of the rotating connecting rod 5 is connected to the rotating shaft of the absolute angle sensor 7. The rotating connecting rod 5 and the rotating shaft of the absolute angle sensor 7 are connected by a set screw, which is convenient for the installation and disassembly between the rotating connecting rod 5 and the rotating shaft of the absolute angle sensor 7. One end of the bend assembly 6 is provided with a gun head 8, and the middle part of the rotating outer sleeve 3 is provided with a worm 1 and a motor 9. The worm 1 is connected to the rotating outer sleeve 3 through a bearing, and the outer wall of the rotating inner sleeve 4 is provided with a turbine matched with the worm 1. The output end of the motor 9 is connected to one end of the worm 1, driving the worm 1 to rotate, and driving the gun head 8 to adjust the angle. The absolute angle sensor 7 is electrically connected to the control system, which is convenient for transmitting the angle data to the control system, and is convenient for real-time control of the position of the fire cannon. Through the above-mentioned structural setting, the utility model can display the real-time position of the fire cannon every time it is turned on, and will not cause deviation in the actual angle due to problems such as the gap between the worm gear or the inertia of the motor.

[0019] Working principle: Start the motor 9 to drive the worm 1 to rotate. Assuming that the base 2 is fixed, the rotary connecting rod 5 and the rotating shaft of the absolute angle sensor 7 are fixed, the worm 1 rotates around the rotating inner sleeve 4, and the worm 1 drives the rotating outer sleeve 3, the bending pipe assembly 6, the absolute angle sensor 7 and the gun head 8 to rotate relative to the rotating inner sleeve 4. The body of the absolute angle sensor 7 and the rotating shaft of the absolute angle sensor 7 rotate relative to each other. Because the absolute angle sensor 7 can record the absolute position of its body and the rotating shaft, such as Figure 3 As shown, the position of the gun body can be known, or after calibrating a certain position as the zero position, the angle of any other position can be accurately displayed, and the actual position after power failure and restart can still be displayed.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A real-time angle feedback structure that can be used for a fire monitor, comprising a base (2), characterized in that: The top of the base (2) is provided with a rotating outer sleeve (3) and a rotating inner sleeve (4), the rotating inner sleeve (4) is fixedly connected to the base (2), the rotating outer sleeve (3) is sleeved on the outside of the rotating inner sleeve (4), the top of the rotating inner sleeve (4) is provided with a rotating connecting rod (5), the top of the rotating outer sleeve (3) is provided with a bending pipe assembly (6), the top of the bending pipe assembly (6) is provided with an absolute angle sensor (7), one end of the rotating connecting rod (5) is connected to the rotating shaft of the absolute angle sensor (7), one end of the bending pipe assembly (6) is provided with a gun head (8), the middle part of the rotating outer sleeve (3) is provided with a worm (1) and a motor (9), the worm (1) is connected to the rotating outer sleeve (3) via a bearing, the outer wall of the rotating inner sleeve (4) is provided with a turbine matched with the worm (1), and the output end of the motor (9) is connected to one end of the worm (1).

2. A real-time angle feedback structure for fire monitors according to claim 1, characterized in that: A steel ball is provided between the rotating inner sleeve (4) and the rotating outer sleeve (3), and the rotating outer sleeve (3) is rotatably connected to the rotating inner sleeve (4) via the steel ball.

3. The real-time angle feedback structure applicable to fire monitors according to claim 1, characterized in that: The rotary inner sleeve (4) is threadedly connected to the rotary connecting rod (5), and epoxy resin glue is provided at the thread.

4. The real-time angle feedback structure applicable to fire monitors according to claim 1, characterized in that: The rotary connecting rod (5) is connected to the rotating shaft of the absolute angle sensor (7) via a set screw.

5. The real-time angle feedback structure applicable to fire monitors according to claim 1, characterized in that: The absolute value angle sensor (7) is electrically connected to the control system.

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