Portable device for detecting cab flip angle and sliding down

Abstract

The present invention discloses a portable device for detecting the flipping angle and sliding down of a cab, comprising: an inclination sensor and a central controller, wherein the inclination sensor and the central controller are communicatively connected via a connecting line; the inclination sensor is fixed on a horizontal plane or a vertical plane of the cab, the inclination sensor measures the flipping angle of the cab in real time and outputs it to the central controller, the central controller displays the current flipping angle of the cab in real time until the cab flips to a preset angle; during the flipping process of the cab, the inclination sensor detects the roll angle of the cab in real time and outputs it to the central controller, the central controller determines whether the roll angle of the cab exceeds the preset angle; after the cab flips to the preset angle, the central controller controls the inclination sensor to switch to a relative posture detection mode, the inclination sensor detects whether the angle of the cab changes and outputs it to the central controller, the central controller determines whether the cab slides down.

Description

Technical Field

[0001] The present application relates to the technical field of automobile safety testing, and in particular to a portable device for detecting the flip angle and sliding down of a cab. Background Art

[0002] In the field of vehicles, the flip cab greatly simplifies the work of automobile maintenance. At present, most commercial vehicle models are equipped with a hydraulic flip device for the cab. When repairing the engine, clutch and transmission, the cab is flipped over by lifting the piston rod for maintenance. The principle of flipping and lifting the cab is that the hydraulic oil pump and the hydraulic lifting cylinder are used together to realize the flipping and lifting of the cab. The flip angle of the cab is one of the important test variables in the safety performance of the cab and one of the most important evaluation items of the cab. When flipping, if the center of gravity of the cab does not pass the flip center, under the action of the cab's own gravity, there is a force to reset the cab, which poses a huge safety hazard to the staff who are repairing under the cab. If the flip angle of the cab is too large, so that the center of gravity of the cab passes the flip center, it is easy to generate a huge force on the lifting piston rod, which is easy to cause damage or failure of the hydraulic flip device, and there is also a safety hazard. Therefore, in the process of automobile research and development, the critical angle of the center of gravity passing the flip center when the cab flips and the maximum flip angle of the cab are important design parameters and indicators.

[0003] In the actual design verification process, the flip angle of the cab needs to be detected in real time to verify whether the flip angle of the cab meets the design requirements; at the same time, during the flipping process, the roll angle of the cab needs to be detected to check whether the roll angle meets the design requirements; when the cab is flipped into place, it is necessary to detect whether the lifting cylinder has a sliding failure to ensure the safety of maintenance. At present, most of the cab flip angle measurements use angle rulers to measure the flip and roll angles. The efficiency of repeatedly detecting the flip angle and roll angle with angle rulers and inclinometers is relatively low and inaccurate. At present, after the cab is flipped into place, most of them use marking and touching methods to detect whether the cylinder has slipped down, which is inaccurate and unsafe. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, an embodiment of the present application provides a portable device for detecting the flip angle and slide of the cab, which can accurately and quickly measure the flip angle, roll angle of the cab and whether the cab has a sliding displacement and automatically output the detection results.

[0005] The embodiment of the present invention provides a portable device for detecting the flip angle and the sliding down of a cab, comprising: a tilt sensor and a central controller, wherein the tilt sensor and the central controller are communicatively connected via a connecting line;

[0006] The inclination sensor is fixed on a horizontal plane or a vertical plane of the cab, and the inclination sensor measures the flip angle of the cab in real time and outputs it to the central controller, and the central controller displays the current flip angle of the cab in real time until the cab flips to a preset angle;

[0007] During the cab flipping process, the tilt sensor detects the cab's roll angle in real time and outputs it to the central controller, and the central controller determines whether the cab's roll angle exceeds a preset value;

[0008] After the cab is flipped to a preset angle, the central controller controls the inclination sensor to switch to a relative posture detection mode. The inclination sensor detects whether the angle of the cab changes and outputs it to the central controller. The central controller determines whether the cab slides down.

[0009] According to the portable device for detecting the flipping angle and sliding down of the cab provided by the embodiment of the present invention, the inclination sensor is provided with mounting holes around it and is fixedly installed on the surface of the cab; a strong magnet is provided on the back of the inclination sensor, and the inclination sensor can be magnetically attracted to the surface of the cab.

[0010] According to the portable device for detecting the flipping angle and sliding down of a cab provided by an embodiment of the present invention, the inclination sensor measures the angles of the cab in the X-axis and Y-axis directions simultaneously.

[0011] According to the portable device for detecting the flipping angle and sliding down of the cab provided by the embodiment of the present invention, the central controller includes a shell, and the shell is provided with a main switch, a tilt angle display screen, a sliding down detection timing display screen, a flipping position indicator light, a detection button, a sliding down alarm, a roll alarm and a connecting line port; a circuit board is arranged in the shell.

[0012] According to the portable device for detecting the flip angle and the downward slide of a cab provided by the embodiment of the present invention, a rechargeable battery is arranged inside the shell, and the working voltage of the circuit board is DC 12V.

[0013] According to the portable device for detecting the flip angle and the downward movement of the cab provided by the embodiment of the present invention, the flip-in-place indicator light is configured as follows: when the cab flips to a preset angle, the flip-in-place indicator light lights up and outputs the detection result;

[0014] The roll alarm is configured as follows: the tilt sensor detects the roll angle of the XZ plane in real time, and when the cab roll angle exceeds a preset value, the tilt sensor transmits a signal to the central controller, and the central controller controls the roll alarm to sound an alarm;

[0015] The downward sliding alarm is configured as follows: when the inclination sensor detects that the cab is sliding downward, the inclination sensor transmits a signal to the central controller, and the central controller controls the downward sliding alarm to sound an alarm.

[0016] According to the portable device for detecting the flip angle and sliding down of the cab provided by the embodiment of the present invention, the circuit board includes a control circuit; the control circuit includes a power supply, a main switch SA1, a flip-in-place indicator light HG, a first relay normally open point KA1, a first relay coil KA1, a first tilt position switch SP1, a first alarm HA1, a second relay normally open point KA2, a second alarm HA2, a third relay normally open point KA3, a second relay coil KA2, a second tilt position switch SP2, a third relay coil KA3, a third tilt position switch SP3, a detection button SB1, a time relay coil KT1, a time relay normally open point KT1, a tilt sensor and an angle display screen;

[0017] Wherein, the power supply, the main switch SA1 and the tilt sensor are connected in series, and the angle display screen is connected in parallel with the tilt sensor;

[0018] The flip-in-position indicator light HG and the first relay normally open point KA1 are connected in series and then connected in parallel with the inclination sensor; the first alarm HA1 and the second relay normally open point KA2 are connected in series and then connected in parallel with the inclination sensor; the second alarm HA2 and the third relay normally open point KA3 are connected in series and then connected in parallel with the inclination sensor; the first relay coil KA1 and the first inclination position switch SP1 are connected in series and then connected in parallel with the inclination sensor; the second relay coil KA2 and the second inclination position switch SP2 are connected in series and then connected in parallel with the inclination sensor; the third relay coil KA3 and the third inclination position switch SP3 are connected in series and then connected in parallel with the inclination sensor; the detection button SB1 and the time relay coil KT1 are connected in series and then connected in parallel with the inclination sensor, and the time relay normally open point KT1 is connected in parallel with the detection button SB1.

[0019] According to the portable device for detecting the flipping angle and sliding down of the cab provided by the embodiment of the present invention, during the flipping angle detection, the cab starts to flip from the horizontal 0 degrees, the main switch SA1 is closed, the inclination sensor starts to work, and the angle display screen displays the current flipping angle in real time; when the cab flips to a preset angle, the first inclination position switch SP1 is closed, the first relay coil KA1 is energized, the first relay normally open point KA1 is closed, and the flipping in place indicator light HG is energized and lights up, indicating that the cab has reached the preset flipping angle.

[0020] According to the portable device for detecting the flipping angle and sliding down of the cab provided by the embodiment of the present invention, during the cab roll detection, the cab starts to flip from the horizontal 0 degrees, the main switch SA1 is closed, the tilt sensor starts to work, and the angle display screen displays the current roll angle in real time; when the cab roll angle exceeds the preset angle, the third tilt position switch SP3 is closed, the third relay coil KA3 is energized, the third relay normally open point KA3 is closed, and the second alarm HA2 is energized to alarm, indicating that the cab roll test has failed.

[0021] According to the portable device for detecting the flip angle and sliding down of the cab provided by the embodiment of the present invention, when the cab is detected to slide down, when the cab flips to a preset angle and is fixed, the main switch SA1 is closed, the inclination sensor starts to work, and the detection button SB1 is pressed for more than three seconds, the inclination sensor switches to the relative posture detection mode, the angle display screen displays the sliding down angle of the cab in real time, and at the same time, the time relay coil KT1 is energized, the time relay normally open point KT1 is closed, and the time relay starts timing. When the cab slides down, the second inclination position switch SP2 is closed, the second relay coil KA2 is energized, the second relay normally open point KA2 is closed, and the first alarm HA1 is energized to alarm, indicating that the cab has a sliding down fault.

[0022] The beneficial effects of the present invention are as follows: the portable device for detecting the flip angle and sliding down of the cab provided by the embodiment of the present invention is small in size, easy to carry, and equipped with a rechargeable battery with ultra-long battery life. It can quickly detect the flip angle of the cab, check the roll angle, and detect whether the cylinder has slid down, and automatically output the detection results, providing a fast and effective practical verification and detection method for the cab flip design, roll check, and whether the cylinder has slid down, which helps to strengthen the safety control of cab flipping and maintenance and reduce safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the structure of a portable device for detecting the flip angle and downward movement of a cab provided in this embodiment.

[0025] Figure 2 This is a schematic diagram of the installation of a portable device for detecting the flip angle and downward movement of a cab provided in this embodiment.

[0026] Figure 3 This is a schematic diagram of the structure of the tilt sensor provided in this embodiment.

[0027] Figure 4 This is a schematic diagram of the internal pin wiring of the tilt sensor provided in this embodiment.

[0028] Figure 5 This is a control circuit structure diagram of the central controller provided in this embodiment. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0032] At present, most cab flip angle measurements use an angle ruler to measure the flip and roll angles, and the use of an angle ruler or an inclinometer to repeatedly detect the flip and roll angles is inefficient and inaccurate. Also, after the cab is flipped into place, most methods use marking or touching to detect whether the oil cylinder has slid down, which is inaccurate and unsafe. An embodiment of the present invention provides a portable device for detecting the flip angle and the sliding down of the cab, which is used for quickly detecting the flip angle of the cab lifting cylinder, the roll angle of the cab, and whether the cab has slid down, and automatically outputting the detection results.

[0033] Figure 1 This is a schematic diagram of the structure of a portable device for detecting the flip angle and downward movement of a cab provided in this embodiment.

[0034] like Figure 1 , Figure 2 As shown, the portable device for detecting the flip angle and sliding down of the cab provided in this embodiment includes: a tilt sensor and a central controller, wherein the tilt sensor and the central controller are communicatively connected via a connecting line; the tilt sensor is fixed on a horizontal plane or a vertical plane of the cab, the tilt sensor measures the flip angle of the cab in real time and outputs it to the central controller, the central controller displays the current flip angle of the cab in real time until the cab flips to a preset angle; during the flipping process of the cab, the tilt sensor detects the roll angle of the cab in real time and outputs it to the central controller, the central controller determines whether the roll angle of the cab exceeds the preset angle; after the cab flips to the preset angle, the central controller controls the tilt sensor to switch to a relative posture detection mode, the tilt sensor detects whether the angle of the cab changes and outputs it to the central controller, the central controller determines whether the cab slides down.

[0035] Specifically, Figure 2As shown, in one embodiment, the tilt sensor is fixed on the vertical plane of the cab. The lifting cylinder pushes the cab to flip. During the flipping process of the cab, the tilt sensor measures the flipping angle of the YZ plane of the cab and the roll angle of the XZ plane of the cab in real time, and the flipping angle of the cab is displayed in real time on the central controller. If the tilt sensor detects that the roll angle of the cab exceeds the preset setting, the central controller issues an alarm to remind the user that the cab has a roll failure at this time. When the cab reaches the preset flip angle, the central controller issues a prompt that the cab has flipped in place. When the cab reaches the preset flip angle, the central controller can control the tilt sensor to switch to a mode for detecting the posture of the cab, and the tilt sensor detects the angle of the cab in real time. When the lifting cylinder slides down, the cab will change its angle, and the tilt sensor can detect the angle change. At this time, the central controller issues an alarm to remind the user that the cab has a sliding down fault at this time.

[0036] The alarm modes include, but are not limited to, flashing lights, buzzer alarms, flashing lights plus buzzer alarms or other alarm modes.

[0037] like Figure 1 As shown, the central controller includes a shell, on which a main switch, a tilt display screen, a sliding detection timing display screen, a flip-in-place indicator light, a detection button, a sliding alarm, a rollover alarm, and a connecting line port are arranged; a circuit board is arranged inside the shell. A rechargeable battery is arranged inside the shell, and the working voltage of the circuit board is DC 12V. Specifically, in one embodiment, the central controller shown is composed of the main switch, the detection button, the tilt display screen, the sliding detection timing display screen, the flip-in-place indicator light, the sliding alarm, and the rollover alarm. Three rechargeable 26650 lithium batteries are used to provide power inside the central controller, wherein the voltage of a single battery is DC 3.7-4.2V, and the storage capacity of a single battery is 6800mAh. The working voltage of the entire central controller is DC12V, and the storage capacity of the three rechargeable batteries is 20400mAh. After a single full charge, the central controller can work continuously for 40 hours. The central controller is equipped with a charging line interface, which can directly charge the rechargeable battery for cyclic use without the need for a separate external power supply. The central controller can be used anywhere and at any time and can adapt to various working environments.

[0038] The rechargeable battery described in this embodiment can be replaced with batteries of other models and specifications, which will not be described again.

[0039] Specifically, the portable device for detecting the flip angle and the downward movement of the cab provided in this embodiment is small in size and easy to carry, and the central controller has a built-in rechargeable battery with a large battery capacity and an ultra-long battery life. In one embodiment, the flip-in-place indicator light is configured as follows: when the cab flips to a preset angle, the flip-in-place indicator light lights up and outputs the detection result;

[0040] The roll alarm is configured as follows: the tilt sensor detects the roll angle of the XZ plane in real time, and when the cab roll angle exceeds a preset value, the tilt sensor transmits a signal to the central controller, and the central controller controls the roll alarm to sound an alarm;

[0041] The downward sliding alarm is configured as follows: when the inclination sensor detects that the cab is sliding downward, the inclination sensor transmits a signal to the central controller, and the central controller controls the downward sliding alarm to sound an alarm.

[0042] Figure 3 The schematic diagram of the tilt sensor structure provided in this embodiment is as follows: Figure 3 As shown, the inclination sensor is provided with mounting holes around it and is fixedly mounted on the surface of the cab; a strong magnet is provided on the back of the inclination sensor, and the inclination sensor can be magnetically attracted to the surface of the cab. The inclination sensor measures the angle of the cab in the X-axis and Y-axis directions at the same time.

[0043] Specifically, the inclination sensor provided in this embodiment has two installation methods. One is that it can be fixedly installed on the surface of the cab through the four mounting holes of the inclination sensor; the other is that it can be magnetically attracted to the surface of the cab through the strong magnet on the back of the inclination sensor; the inclination sensor is easy and quick to install and meets the needs of multiple working conditions.

[0044] Figure 4 This is a schematic diagram of the internal pin wiring of the tilt sensor provided in this embodiment.

[0045] like Figure 4 As shown, in one embodiment, the tilt sensor function parameters and pins are defined as:

[0046] The working voltage of the tilt sensor is DC 9V-36V; the waterproof level is IP67; its measuring axes are X-axis and Y-axis; the measuring accuracy of the tilt sensor is 0.1°

[0047] Among them, the definition of each pin is:

[0048] Red and black: positive and negative poles of power supply;

[0049] Green and yellow: serial TTL / RS232 communication interface, which can be connected to computer software to set the X and Y axis alarm angles;

[0050] Black / white: relative attitude switching pin;

[0051] Gray and white: positive inclination of X axis;

[0052] Orange and cyan: negative inclination of the X-axis;

[0053] Brown and blue: positive inclination of Y axis;

[0054] Pink and purple: negative inclination of the Y axis.

[0055] Specifically, in one embodiment, when the portable device for detecting the flip angle and the downward movement of the cab is used, the tilt sensor is fixed on the horizontal or vertical plane of the cab, and the flip angle of the Y plane and the Z plane of the cab is detected by the tilt sensor, and the detected angle is displayed in real time by the angle display. When the flip angle of the cab meets the design requirements and reaches the preset angle, the tilt sensor transmits a signal to the central controller, and the central controller controls the flip-in-place indicator light to light up and outputs the detection result.

[0056] During the cab flipping process, the tilt sensor detects the roll angles of the X plane and the Z plane in real time. When the cab roll angle exceeds the design requirement, the tilt sensor transmits a signal to the central controller, and the central controller controls the roll alarm buzzer to sound an alarm and output the detection result.

[0057] When the cab is flipped into place, long press the detection button, and the central controller enters the mode of detecting the sliding displacement of the cab. At this time, the time relay starts timing, and the inclination sensor starts to detect whether the oil cylinder slides down. If the oil cylinder fails to slide down within the specified time, the inclination sensor transmits a signal to the central controller, and the central controller controls the sliding alarm buzzer to sound an alarm and output the detection result.

[0058] Figure 5 This is a control circuit structure diagram of the central controller provided in this embodiment.

[0059] like Figure 5As shown, in one embodiment, the circuit board includes a control circuit; the control circuit includes a power supply, a main switch SA1, a flip-in-place indicator light HG, a first relay normally open point KA1, a first relay coil KA1, a first tilt position switch SP1, a first alarm HA1, a second relay normally open point KA2, a second alarm HA2, a third relay normally open point KA3, a second relay coil KA2, a second tilt position switch SP2, a third relay coil KA3, a third tilt position switch SP3, a detection button SB1, a time relay coil KT1, a time relay normally open point KT1, a tilt sensor and an angle display screen;

[0060] Wherein, the power supply, the main switch SA1 and the tilt sensor are connected in series, and the angle display screen is connected in parallel with the tilt sensor;

[0061] The flip-in-position indicator light HG and the first relay normally open point KA1 are connected in series and then connected in parallel with the inclination sensor; the first alarm HA1 and the second relay normally open point KA2 are connected in series and then connected in parallel with the inclination sensor; the second alarm HA2 and the third relay normally open point KA3 are connected in series and then connected in parallel with the inclination sensor; the first relay coil KA1 and the first inclination position switch SP1 are connected in series and then connected in parallel with the inclination sensor; the second relay coil KA2 and the second inclination position switch SP2 are connected in series and then connected in parallel with the inclination sensor; the third relay coil KA3 and the third inclination position switch SP3 are connected in series and then connected in parallel with the inclination sensor; the detection button SB1 and the time relay coil KT1 are connected in series and then connected in parallel with the inclination sensor, and the time relay normally open point KT1 is connected in parallel with the detection button SB1.

[0062] Specifically, during the flip angle detection, the cab starts to flip from the horizontal 0 degrees, the main switch SA1 is closed, the inclination sensor starts to work, and the angle display screen displays the current flip angle in real time; when the cab flips to a preset angle, the first inclination position switch SP1 is closed, the first relay coil KA1 is energized, the first relay normally open point KA1 is closed, and the flip position indicator light HG is energized and lights up, indicating that the cab has reached the preset flip angle.

[0063] During the cab roll detection, the cab starts to flip from the horizontal 0 degrees, the main switch SA1 is closed, the tilt sensor starts to work, and the angle display screen displays the current roll angle in real time; when the cab roll angle exceeds the preset angle, the third tilt position switch SP3 is closed, the third relay coil KA3 is energized, the third relay normally open point KA3 is closed, and the second alarm HA2 is energized to alarm, indicating that the cab roll test has failed.

[0064] When the cab is detecting its downward slide, when the cab flips to a preset angle and remains stationary, the main switch SA1 is closed, the inclination sensor starts to work, and the detection button SB1 is pressed for more than three seconds, the inclination sensor switches to the relative posture detection mode, the angle display screen displays the downward slide angle of the cab in real time, and at the same time, the time relay coil KT1 is energized, the time relay normally open point KT1 is closed, and the time relay starts timing. When the cab is sliding downward, the second inclination position switch SP2 is closed, the second relay coil KA2 is energized, the second relay normally open point KA2 is closed, and the first alarm HA1 is energized to alarm, indicating that the cab has a downward slide failure.

[0065] according to Figure 5 In one embodiment, a specific angle is used as an example. In actual use, the preset angle can be modified according to actual needs, which will not be described in detail here.

[0066] When performing cab flip angle detection, first connect the inclination sensor to the computer through a serial port line, and set the cab flip angle +X alarm angle to 60 degrees through the software. This embodiment takes 60 degrees as an example. The detection process is that when the cab starts to flip from 0 degrees, the main switch SA1 is closed, the inclination sensor starts to be powered on, and the angle display screen displays the current flip angle (+X) in real time. When the cab flip angle reaches the set angle of 60 degrees, the first inclination position switch SP1 is closed, the first relay coil KA1 is energized, the first relay normally open point KA1 is closed, and the flip position indicator HG is energized and lit, indicating that the cab has reached the preset flip angle.

[0067] When performing cab roll detection, first connect the tilt sensor to the computer through a serial port line, and set the cab roll angle +Y, -Y alarm angle to ±2 degrees through the software. This embodiment takes the cab roll angle of ±2 degrees as an example. The detection process is that when the cab starts to flip, the main switch SA1 is closed, the tilt sensor starts to be powered on, and the angle display screen displays the current roll angle (+Y, -Y) in real time. When the cab roll angle exceeds the set angle of ±2 degrees, the third tilt position switch SP3 is closed, the third relay coil KA3 is energized, the third relay normally open point KA3 is closed, and the second alarm HA2 is powered on to flash, indicating that the cab roll test is unqualified.

[0068] When performing the cab displacement sliding detection, first connect the inclination sensor and the computer through the serial port line, set the cab displacement sliding -X alarm angle to -0.1 degrees through the software, and the time relay is equipped with a digital display screen, and set the timing time to 30 seconds. This embodiment takes the cab displacement sliding 0.1 degrees as an example. The detection process is that when the cab is flipped in place and fixed, close the main switch SA1, and the inclination sensor starts to power on. Press and hold the detection button SB1 for more than three seconds, which is equivalent to grounding the black / white inside the inclination sensor. The inclination sensor switches to the relative posture detection mode, the current display angle of the angle display becomes 0 degrees, and the cab falling angle (-X) starts to be displayed in real time. At the same time, the time relay coil KT1 is energized, the time relay normally open point KT1 is closed, and the time relay starts timing for 30 seconds. When the oil cylinder slides down and causes the cab to fall more than 0.1 degrees, the second tilt position switch SP2 closes, the second relay coil KA2 is energized, the second relay normally open point KA2 is closed, and the first alarm HA1 is energized and flashes, indicating that the cab has a sliding failure.

[0069] The portable device for detecting the flip angle and sliding down of the cab provided in the embodiment of the present invention is small in size, easy to carry, and equipped with a rechargeable battery with ultra-long battery life. It can quickly detect the flip angle of the cab, check the roll angle, and detect whether the cylinder has slid down, and automatically output the detection results, providing a fast and effective practical verification and detection method for the cab flip design, roll check, and whether the cylinder has slid down, which helps to strengthen the safety management and control of the cab flip and maintenance and reduce safety risks.

[0070] Although the preferred embodiments of the embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the attached claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention. Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0071] The portable device for detecting the flipping angle and sliding down of the cab provided in the embodiments of the present application is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A portable device for detecting the flip angle and downward movement of a cab, characterized in that: include: A tilt sensor and a central controller, wherein the tilt sensor and the central controller are communicatively connected via a connecting line; The inclination sensor is fixed on a horizontal plane or a vertical plane of the cab, and the inclination sensor measures the flip angle of the cab in real time and outputs it to the central controller, and the central controller displays the current flip angle of the cab in real time until the cab flips to a preset angle; During the cab flipping process, the tilt sensor detects the cab's roll angle in real time and outputs it to the central controller, and the central controller determines whether the cab's roll angle exceeds a preset value; After the cab is flipped to a preset angle, the central controller controls the tilt sensor to switch to a relative posture detection mode, the tilt sensor detects whether the angle of the cab changes and outputs the result to the central controller, and the central controller determines whether the cab slides down; The central controller includes a housing, on which a main switch, an angle display screen, a sliding detection timing display screen, a flip-in-place indicator light, a detection button, a sliding alarm, a rollover alarm, and a connection line port are arranged; a circuit board is arranged inside the housing; The circuit board includes a control circuit; the control circuit includes a power supply, a main switch SA1, a flip-in-place indicator light HG, a first relay normally open point, a first relay coil, a first tilt position switch SP1, a first alarm HA1, a second relay normally open point, a second alarm HA2, a third relay normally open point, a second relay coil, a second tilt position switch SP2, a third relay coil, a third tilt position switch SP3, a detection button SB1, a time relay coil, and a time relay normally open point; Wherein, the power supply, the main switch SA1 and the tilt sensor are connected in series, and the angle display screen is connected in parallel with the tilt sensor; The flip-in-place indicator light HG is connected in series with the first relay normally open point and then connected in parallel with the inclination sensor; the first alarm HA1 is connected in series with the second relay normally open point and then connected in parallel with the inclination sensor; the second alarm HA2 is connected in series with the third relay normally open point and then connected in parallel with the inclination sensor; the first relay coil is connected in series with the first inclination position switch SP1 and then connected in parallel with the inclination sensor; the second relay coil is connected in series with the second inclination position switch SP2 and then connected in parallel with the inclination sensor; the third relay coil is connected in series with the third inclination position switch SP3 and then connected in parallel with the inclination sensor; the detection button SB1 is connected in series with the time relay coil and then connected in parallel with the inclination sensor, and the time relay normally open point is connected in parallel with the detection button SB1; During the cab sliding down detection, when the cab is flipped to a preset angle and fixed, the main switch SA1 is closed and the inclination sensor starts working. The detection button SB1 is pressed and held for more than three seconds, and the inclination sensor switches to the relative posture detection mode. The angle display screen displays the sliding down angle of the cab in real time. At the same time, the time relay coil is energized, the time relay normally open point is closed, and the time relay starts timing. When the cab slides down, the second inclination position switch SP2 is closed, the second relay coil is energized, the second relay normally open point is closed, and the first alarm HA1 is energized to alarm, indicating that the cab has a sliding down failure.

2. The portable device for detecting the flip angle and downward movement of the cab according to claim 1, characterized in that: The inclination sensor is provided with mounting holes around it and is fixedly mounted on the surface of the cab; a strong magnet is provided on the back of the inclination sensor, and the inclination sensor can be magnetically attracted to the surface of the cab.

3. The portable device for detecting the flip angle and downward movement of the cab according to claim 2, characterized in that: The inclination sensor measures the angle of the cab in the X-axis and Y-axis directions simultaneously.

4. The portable device for detecting the flip angle and downward movement of the cab according to claim 1, characterized in that: A rechargeable battery is arranged inside the shell, and the working voltage of the circuit board is DC 12V.

5. The portable device for detecting the flip angle and downward movement of the cab according to claim 1, characterized in that: The flip-in-place indicator light is configured such that: when the cab is flipped to a preset angle, the flip-in-place indicator light is lit and a detection result is output; The roll alarm is configured as follows: the tilt sensor detects the roll angle of the XZ plane in real time, and when the cab roll angle exceeds a preset value, the tilt sensor transmits a signal to the central controller, and the central controller controls the roll alarm to sound an alarm; The downward sliding alarm is configured as follows: when the inclination sensor detects that the cab is sliding downward, the inclination sensor transmits a signal to the central controller, and the central controller controls the downward sliding alarm to sound an alarm.

6. The portable device for detecting the flip angle and downward movement of the cab according to claim 1, characterized in that: During the flip angle detection, the cab starts to flip from the horizontal 0 degrees, the main switch SA1 is closed, the tilt sensor starts to work, and the angle display screen displays the current flip angle in real time; when the cab flips to the preset angle, the first tilt position switch SP1 is closed, the first relay coil is energized, the first relay normally open point is closed, and the flip position indicator HG is energized and lights up, indicating that the cab has reached the preset flip angle.

7. The portable device for detecting the flip angle and downward movement of the cab according to claim 1, characterized in that: During the cab roll detection, the cab starts to flip from the horizontal 0 degrees, the main switch SA1 is closed, the tilt sensor starts to work, and the angle display screen displays the current roll angle in real time; when the cab roll angle exceeds the preset value angle, the third tilt position switch SP3 is closed, the third relay coil is energized, the normally open point of the third relay is closed, and the second alarm HA2 is energized to alarm, indicating that the cab roll test has failed.

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