Disclosure of Invention
An object of the utility model is to provide a tailboard safety is discerned by oneself, control system based on signal acquisition sensor such as infrared, radar is constituteed, through signal acquisition such as infrared, ultrasonic wave, radar, monitoring sensor monitoring tailboard platform rise, the upset motion safety condition, avoids foreign matter, personnel to invade the platform range of motion and arouses the incident. The utility model monitors whether foreign matters exceed the front of the tail board platform and invade the area in the ascending process of the tail board platform through the infrared sensor arranged in the coinciding area of the height direction of the bottom of the tail end of the carriage and the front of the platform, automatically cuts off the ascending motion of the tail board platform if foreign matters exist, avoids the safety accidents of extruding and shearing the foreign matters in the relative motion of the platform and the rear end of the carriage, and sends out warning signals; additionally the utility model discloses still through installing at tailboard lift platform back installation radar or ultrasonic wave or infrared monitoring sensor monitoring platform back personnel and the foreign matter condition, if personnel or foreign matter invade this platform upset region when operation tailboard platform is perpendicular to the horizontal upset, the utility model discloses a system avoids making the infringement to platform back personnel and foreign matter with automatic cutout platform upset motion to send alarm signal.
The utility model adopts the technical proposal that:
the tail plate safety control system based on foreign matter monitoring comprises a platform monitoring sensor, an infrared sensor, a first relay K1, a second relay K2, a second relay K3, a platform overturning switch, an overturning control electromagnetic valve, a motor and a warning signal generator, wherein the platform overturning switch comprises a pair of linked normally open switch and normally closed switch;
the platform monitoring sensor is connected with a power supply cathode through a control coil of a second relay K2, the infrared sensor is connected with the power supply cathode through a control coil of a first relay K2, the anode of the power supply is respectively connected with the fuse and one end of a main switch of a third relay, the other end of the main switch K3 of the third relay is connected with the power supply cathode through a motor, and the other end of the fuse is respectively connected with one end of a normally open switch K2-1 of the second relay K2, one end of a normally open switch K1-1 of the first relay K1, a tail plate rising switch and one end of a tail plate falling switch; the normally open switch K2-1 of the second relay K2 and the normally open switch K1-1 of the first relay K1 are connected in parallel and then connected with the negative electrode of a power supply through a warning signal generator, the other end of the tail plate rising switch is respectively connected with the normally closed switch K2-2 of the second relay K2, the normally closed switch of the platform overturning switch and one end of the normally open switch of the platform overturning switch, the normally closed switch K2-2 of the second relay K2 is connected with the negative electrode of the power supply through a control coil of a third relay, and the other end of the normally closed switch of the platform overturning switch is connected with the negative electrode of the power supply through a control coil of an S; the other end of a normally open switch of the platform overturning switch is connected with the negative electrode of the power supply through a control coil of the XZ electromagnetic valve; the lifting of the tail plate is controlled by the SJ electromagnetic valve, the tail plate is controlled by the XZ electromagnetic valve to turn over up and down, the other end of the tail plate descending switch is respectively connected with the normally closed switch of the platform turning switch, the normally open switch of the platform turning switch and one end of the normally closed switch K1-2 of the first relay K1, and the other end of the normally closed switch K1-2 of the first relay K1 is connected with the negative electrode of the power supply through the turning control electromagnetic valve.
Further, as a preferred embodiment, at least one platform monitoring sensor is distributed and installed at the back of the platform of the tail board.
Further, as a preferred embodiment, the infrared sensors are installed at the left and right upright positions below the floor of the rear portion of the carriage.
Further, as a preferred embodiment, the tailgate platform can be flipped from the vertical position to the horizontal position or vice versa.
The utility model adopts the above technical scheme, whether the infrared sensing components and parts monitoring tailboard lift platform ascending motion process of standing at carriage rear end bottom has the region that the foreign matter invaded platform the place ahead and the coincidence of carriage bottom direction of height, cuts off tailboard platform ascending motion through the signal of gathering when the foreign matter invades, avoids the foreign matter to extrude, cut in lift platform and carriage rear end relative motion, causes infringement, damage. The control center signals to a warning device to prompt an operator to check foreign matters and remove operation limitation; at tailboard lift platform back installation radar or ultrasonic wave or infrared monitoring sensor, whether monitoring tailboard platform back has foreign matter, personnel to invade, when operation tailboard platform from perpendicular to horizontally upset operation, the sensor is monitored and is had the foreign matter to cut off the tailboard upset action to signal warning device through the control maincenter and indicate operating personnel to look over, get rid of the foreign matter. The utility model discloses effectively avoid the incident to appear in the tailboard operation in-process, avoid the accident to produce infringement, damage personnel and article.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
As shown in one of fig. 1 to 3, the utility model discloses a tailboard safety control system based on foreign matter monitoring, it includes platform monitoring sensor 21, infrared sensor, first relay K1, second relay K2, second relay K3, platform upset switch, the upset control solenoid valve, motor and warning signal generator, platform upset switch includes a pair of linked normally open switch and normally closed switch, platform monitoring sensor 21 is used for monitoring whether there is foreign matter or personnel to invade at the tailboard platform back, infrared sensor is used for monitoring whether there is foreign matter or personnel to invade the vertical direction H of the coincidence zone of carriage tail end bottom height direction and platform the place ahead;
the platform monitoring sensor 21 is connected with the negative pole of a power supply through a control coil of a second relay K2, the infrared sensor is connected with the negative pole of the power supply through a control coil of a first relay K2, the positive pole of the power supply is respectively connected with the fuse and one end of a main switch of a third relay, the other end of the main switch K3 of the third relay is connected with the negative pole of the power supply through a motor,
the other end of the fuse is respectively connected with one end of a normally open switch K2-1 of a second relay K2, one end of a normally open switch K1-1 of a first relay K1, one end of a tail plate rising switch and one end of a tail plate falling switch;
the normally open switch K2-1 of the second relay K2 and the normally open switch K1-1 of the first relay K1 are connected in parallel and then are connected with the negative pole of a power supply through a warning signal generator,
the other end of the tail plate rising switch is respectively connected with one end of a normally closed switch K2-2 of a second relay K2, a normally closed switch of the platform overturning switch and one end of a normally open switch of the platform overturning switch, the normally closed switch K2-2 of the second relay K2 is connected with the negative electrode of the power supply through a control coil of a third relay, and the other end of the normally closed switch of the platform overturning switch is connected with the negative electrode of the power supply through a control coil of an SJ electromagnetic valve; the other end of a normally open switch of the platform overturning switch is connected with the negative electrode of the power supply through a control coil of the XZ electromagnetic valve; the SJ electromagnetic valve controls the lifting of the tail plate, and the XZ electromagnetic valve controls the up-and-down turning of the tail plate.
The other end of the tail plate descending switch is respectively connected with a normally closed switch of the platform overturning switch, a normally open switch of the platform overturning switch and one end of a normally closed switch K1-2 of the first relay K1, and the other end of the normally closed switch K1-2 of the first relay K1 is connected with the negative electrode of the power supply through an overturning control electromagnetic valve.
Further, as a preferred embodiment, at least one platform monitoring sensor 21 is distributed and installed on the back of the platform of the tail board.
Further, as a preferred embodiment, the infrared sensors are installed at the left and right upright positions below the floor of the rear portion of the carriage.
Further, as a preferred embodiment, the tailgate platform can be flipped from the vertical position to the horizontal position or vice versa.
Specifically, the utility model discloses the lift tailboard device mainly installs at 11 rear portions in the carriage, and the operation of lift tailboard device mainly has: firstly, the tail plate platform 12 is lifted vertically to the carriage 11 to a position B or is descended vertically to the position A from the position B; the tailgate platform 12 is flipped from the vertical position C to the horizontal position B or flipped from the horizontal position B to the vertical position C. The platform monitoring sensors 21 for monitoring whether foreign matters and personnel invade on the back of the tail board platform 12 are arranged on the back of the tail board platform 12 in a 1 or more combined distribution mode. An infrared sensor 22 for monitoring whether foreign matters or personnel invade the height direction of the bottom of the carriage tail end and the vertical direction of the overlapping area in front of the platform is H is arranged at the left and right upright post positions below the bottom plate at the rear part of the carriage 11. The electric control system for controlling the system mainly comprises a platform monitoring sensor 21, an infrared sensor 22, a relay K2 serial number 23, a tail plate lifting button 24, a relay K1 serial number 25, a turnover control electromagnetic valve 26, a platform turnover button 27, a motor 28 and a warning signal generator 29;
the working process is as follows: operating personnel operates 24 rising buttons of tailboard, and the heavy ground position A vertical direction of tailboard platform 12 rises toward position B, and the process of rising surpasss the preceding terminal surface of tailboard platform 12 as foreign matter or personnel's sole etc. invades when carriage tail end bottom direction of height and platform the place ahead coincidence region H, rises along with tailboard platform 12 and is monitored by infrared sensor 22 of installing in carriage 11 rear portion bottom plate below, and feeds back the signal the utility model discloses electrical system, through signal processing and output signal cut off motor 28 operation, stops by oneself the tailboard platform 12 and continues to rise, avoids surpassing the foreign matter of tailboard platform 12 preceding terminal surface or personnel's sole and is sheared, the extrusion causes the infringement by the relative motion at tailboard platform 12 and carriage 11 rear portion. When the tail board platform 12 is stopped to rise continuously, a signal is sent to the warning signal generator 29, and the warning signal generator 29 sends a warning signal to warn an operator. ② when operating personnel operating platform upset button 27, tail-board platform 12 is from vertical state position C toward upset horizontal state position B process, whether platform monitoring sensor 21 monitoring tail-board platform 12 back region has personnel or foreign matter, signals when platform monitoring sensor 21 monitors personnel or foreign matter and gives the utility model discloses electrical system, through signal processing and output signal cut off upset control solenoid valve 26, stops tail-board platform 12 upset action to warning signal generator 29 signals, warning signal generator 29 sends warning signal and warns operating personnel to observe tail-board platform 12 back and gets rid of the potential safety hazard.
The utility model adopts the above technical scheme, whether the infrared sensing components and parts monitoring tailboard lift platform ascending motion process of standing at carriage rear end bottom has the region that the foreign matter invaded platform the place ahead and the coincidence of carriage bottom direction of height, cuts off tailboard platform ascending motion through the signal of gathering when the foreign matter invades, avoids the foreign matter to extrude, cut in lift platform and carriage rear end relative motion, causes infringement, damage. The control center signals to a warning device to prompt an operator to check foreign matters and remove operation limitation; at tailboard lift platform back installation radar or ultrasonic wave or infrared monitoring sensor, whether monitoring tailboard platform back has foreign matter, personnel to invade, when operation tailboard platform from perpendicular to horizontally upset operation, the sensor is monitored and is had the foreign matter to cut off the tailboard upset action to signal warning device through the control maincenter and indicate operating personnel to look over, get rid of the foreign matter. The utility model discloses a tailboard safety control system based on monitoring sensors such as infrared, radar are constituteed rises, whether there is the foreign matter condition of invading in upset motion process operation region through the sensor monitoring tailboard, through the motion of system monitoring, the automatic cut-off control tailboard device of identification system to effectively avoid the incident to take place, and warn operating personnel signals. The utility model discloses effectively avoid the incident to appear in the tailboard operation in-process, avoid the accident to produce infringement, damage personnel and article.
It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.