CN218877064U - Carriage safety alarm device of self-discharging semitrailer - Google Patents

Abstract

The utility model discloses a carriage safety alarm device of self-discharging semitrailer, including frame, carriage, hydraulic pressure lifting device, protecting crust, opening, adjustable fender, non-contact level meter, first angle sensor, second angle sensor, third angle sensor, audible-visual annunciator, treater and vehicle speed sensor. When the carriage is in a lifting non-reset state, and a driver drives a vehicle, the processor judges that the driver is dangerous to drive the vehicle according to the inconsistent information of the carriage angle and the frame angle and the vehicle speed information detected by the vehicle speed sensor, automatically controls the audible and visual alarm to give an alarm, reminds the driver to reset the carriage, avoids accidents, ensures the safety of the vehicle and the driver, and has high safety; in the unloading process, when a driver drives the vehicle to move forward and unload materials, the non-contact type material level meter detects that materials exist in the carriage, the processor judges that the vehicle is in an unloading state, the audible and visual alarm cannot be controlled to give an alarm, and unloading operation can be normally carried out.

Description

Carriage safety alarm device of self-discharging semitrailer

Technical Field

The utility model relates to a tipper technical field, especially a carriage safety alarm device of self-discharging semitrailer.

Background

The self-unloading semitrailer consists of an automobile chassis, a hydraulic lifting mechanism, a cargo compartment, a power takeoff device and the like, and is suitable for transporting bulk goods such as coal, ore, building materials and the like. The carriage adopts a side-tipping and back-tipping self-unloading mode, and the loader can effectively transport bulk goods. The carriage of the back-tipping self-unloading type is hydraulically lifted to automatically unload the goods self-unloading carriage, and the carriage is tipped backwards and laterally, and the carriage is tipped by operating a piston rod.

After the dump truck is unloaded, the situation that the carriage is reset to be on the road due to forgetting of a driver easily exists, the lifted carriage is easy to scrape and touch objects such as pipelines, bridges or high-voltage lines suspended at high places, potential safety hazards are large, and accidents are easily caused.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a carriage safety alarm device for a dump semi-trailer.

In order to achieve the purpose, the utility model provides a carriage safety alarm device of self-discharging semitrailer, including frame, carriage and hydraulic lifting device, the rear end of carriage articulates and installs at the frame afterbody, and hydraulic lifting device installs on the frame and is connected with the carriage front end, the carriage front end top is installed the protecting crust, and one side that the protecting crust was towards the carriage rear end is equipped with the opening, and the protecting crust top articulates has the adjustable fender that is used for opening and close the opening, and the adjustable fender is installed on the terminal surface towards in the protecting crust and is used for acquireing the non-contact level meter of goods height information in the carriage and is used for detecting the first angle sensor of adjustable fender angle, and the internal wall of protecting crust is installed with the second angle sensor that is used for detecting the carriage angle, installs the third angle sensor that is used for detecting the adjustable frame angle on the frame; the processor is electrically connected with the non-contact level meter, the first angle sensor, the second angle sensor, the third angle sensor and the audible and visual alarm.

Preferably, the dump truck semitrailer further comprises a vehicle speed sensor, the vehicle speed sensor is used for detecting the vehicle speed of the dump truck semitrailer, and the processor is electrically connected with the vehicle speed sensor.

Preferably, the non-contact level gauge is an ultrasonic level gauge, a microwave level gauge or a radar level gauge.

Preferably, when the carriage is in the raised condition, the free end of the flapper is spaced away from the containment vessel to open the opening.

Preferably, the non-contact level gauge is an ultrasonic level gauge, a microwave level gauge or a radar level gauge. And a first cushion pad is arranged on the protective shell and positioned at the bottom of the opening, and the first cushion pad is used for being in contact fit with the movable baffle.

Preferably, a rain-proof baffle is fixed at the top of the protective shell and is positioned above the movable baffle.

Preferably, one end of the rainproof baffle is provided with a bending part, and the bending part is used for being in contact fit with the movable baffle to limit the rotation angle of the movable baffle.

Preferably, a second cushion pad is installed on the end face, facing the opening, of the bending part, and the second cushion pad is used for being in contact fit with the movable baffle.

Compared with the prior art, the technical scheme has the following beneficial effects:

1. when the carriage is in a lifting non-reset state and a driver drives the vehicle, the processor judges that the driver is dangerous to drive the vehicle according to the information that the angle of the carriage is inconsistent with the angle of the frame and the vehicle speed information detected by the vehicle speed sensor, automatically controls the audible and visual alarm to give an alarm, reminds the driver to reset the carriage, avoids accidents, ensures the safety of the vehicle and the driver and has high safety;

2. during the unloading process, the carriage is in a lifting state, when a driver drives the vehicle to move forward and unload, the non-contact material level meter detects that materials exist in the carriage and the height of the materials continuously drops, the processor judges that the vehicle is in the unloading state, and the audible and visual alarm cannot be controlled to give an alarm, so that the unloading operation can be normally carried out;

3. in the unloading process, the carriage is in a lifting state, the non-contact type material level meter detects that no material exists in the carriage, the processor judges that the unloading of the vehicle is finished, the audible and visual alarm is controlled to give an alarm, a driver is reminded that the unloading is finished at the moment, the carriage can be reset and driven away in time, the waste of time is avoided, and the unloading efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a control schematic of the present invention;

in the figure, 1, a vehicle frame; 2. a carriage; 3. a hydraulic lifting device; 4. a protective shell; 5. an opening; 6. a movable baffle; 7. a non-contact level meter; 8. a first angle sensor; 9. a second angle sensor; 10. a third angle sensor; 11. an audible and visual alarm; 12. a processor; 13. a vehicle speed sensor; 14. a first cushion pad; 15. a rain-proof baffle plate; 16. a bending part; 17. a second cushion pad.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 to 3, the embodiment of the present application provides a carriage safety alarm device of a dump semi-trailer, including a frame 1, a carriage 2 and a hydraulic lifting device 3, the rear end of the carriage 2 is hinged to the rear end of the frame 1, the hydraulic lifting device 3 is mounted on the frame 1 and connected to the front end of the carriage 2, a protective shell 4 is mounted on the top of the front end of the carriage 2, one side of the protective shell 4 facing the rear end of the carriage 2 is provided with an opening 5, the top of the protective shell 4 is hinged with a movable baffle 6 for opening and closing the opening 5, the end face of the movable baffle 6 facing the inside of the protective shell 4 is provided with a non-contact level meter 7 for acquiring the height information of the cargo in the carriage 2 and a first angle sensor 8 for detecting the angle of the movable baffle 6, the non-contact level meter 7 is a radar level meter, the radar level meter adopts a microwave pulse measurement method, and can be normal in an industrial frequency band, the wave beam energy is low, and is suitable for the occasions where dust, temperature, pressure change is large, inert gas and steam exist, the radar level meter is harmless to the human body and environment, and also has no influence of dielectric specific gravity, and is not influenced by dielectric constants of the other embodiments, and is suitable for detecting the ultrasonic level meter 2, and also can be suitable for detecting various cargo in the ultrasonic wave detection embodiments; a second angle sensor 9 for detecting the angle of the carriage 2 is arranged on the inner wall of the protective shell 4, and a third angle sensor 10 for detecting the angle of the movable carriage 1 is arranged on the carriage 1; the semitrailer level measuring device further comprises an audible and visual alarm 11 and a processor 12, wherein the audible and visual alarm 11 and the processor 12 are installed in a cab of the semitrailer, and the processor 12 is electrically connected with the non-contact level gauge 7, the first angle sensor 8, the second angle sensor 9, the third angle sensor 10 and the audible and visual alarm 11. Under the reset condition of the carriage 2, the movable baffle 6 sags by gravity to automatically close the opening 5, and a non-contact level meter 7, a first angle sensor 8 and a second angle sensor 9 in the protective shell 4 are protected; when the carriage 2 is in the lifting posture, the movable baffle 6 sags by gravity to automatically open the opening 5, the non-contact level meter 7 moves along with the movable baffle 6, the detection end of the non-contact level meter 7 is rotated to a certain angle on the carriage 2 and then is completely moved out of the opening 5, and the carriage 2 can be detected, so that whether goods exist in the carriage 2 or not, and the height and distribution condition of the goods are obtained.

In order to facilitate the detection of the speed of the semitrailer and further judge whether the semitrailer is in a driving state, the device further comprises a speed sensor 13, the speed sensor 13 is used for detecting the speed of the semitrailer, and the processor 12 is electrically connected with the speed sensor 13.

In order to facilitate the non-contact level meter 7 to detect the height of the goods in the carriage 2, when the carriage 2 is in a lifting state, the free end of the movable baffle 6 is far away from the protective shell 4 to open the opening 5, the free end of the movable baffle 6 is kept in a vertical posture under the action of gravity, is naturally far away from the protective shell 4 and opens the opening 5.

In order to avoid the movable baffle 6 from impacting the protective shell 4 when the opening 5 is closed, so that the non-contact level meter 7 and the first angle sensor 8 are damaged, a first cushion pad 14 is arranged on the protective shell 4 and positioned at the bottom of the opening 5, and the first cushion pad 14 is used for being in contact fit with the movable baffle 6. The first buffer cushion 14 is made of an elastic rubber cushion, has a buffer function, and avoids the movable baffle 6 from being in rigid contact with the protective shell 4.

In order to prevent rainwater from entering the protective shell 4, the non-contact level meter 7, the first angle sensor 8 and the second angle sensor 9 are corroded, a rainproof baffle plate 15 is fixed at the top of the protective shell 4, and the rainproof baffle plate is located above the movable baffle plate 6. Rain-proof baffle 15's one end and protecting crust 4 fixed connection, rain-proof baffle 15's the other end extends to and surpasss adjustable fender 6, can block adjustable fender 6 and opening 5, reduces rainwater entering opening 5.

In order to prevent the movable baffle 6 from swinging to the top end face of the protective shell 4 under inertia, one end of the rainproof baffle 15 is provided with a bending part 16, and the bending part 16 is used for being in contact fit with the movable baffle 6 to limit the rotation angle of the movable baffle 6.

In order to avoid the situation that the movable baffle 6 rigidly impacts the bent part 16 during swinging to cause damage to the non-contact level meter 7 and the first angle sensor 8, a second cushion pad 17 is installed on the end face, facing the opening 5, of the bent part 16, and the second cushion pad 17 is used for being in contact fit with the movable baffle 6. The second cushion pad 17 is made of an elastic rubber pad, has a buffering effect, and avoids the rigid contact between the movable baffle 6 and the bending part 16.

In the present embodiment, the vehicle compartment 2 has the following conditions:

1. after unloading is finished, the carriage 2 is in a lifting state and is not reset, and a driver forgets to reset the carriage 2 and dangerously drives the vehicle; under the condition, the angle of the carriage 2 detected by the second angle sensor 9 and the third angle sensor is not consistent with the angle of the frame 1, and the processor 12 judges that the carriage 2 is not reset; the vehicle speed sensor 13 detects vehicle speed information, the vehicle speed is greater than a preset maximum unloading vehicle speed, the processor 12 judges that the vehicle is in a running state, and the processor 12 controls the audible and visual alarm 11 to give an alarm to remind a driver of forgetting to reset the carriage 2;

2. in the unloading process, the carriage 2 is in a lifting state, and a driver drives the vehicle to carry out unloading while advancing; under the condition, the angle of the carriage 2 detected by the second angle sensor 9 and the third angle sensor is inconsistent with the angle of the frame 1, and the processor 12 judges that the carriage 2 is in the lifting state and is not reset; the vehicle speed sensor 13 detects vehicle speed information, and the vehicle speed is less than a preset maximum unloading vehicle speed; at this moment, the movable baffle 6 naturally droops by gravity to open the opening 5, the detection end of the non-contact level meter 7 faces to the inside of the carriage 2, and the movable baffle 6 swings left and right by the inertia force of road surface jolt and vehicle speed change in the vehicle running process, so that the non-contact level meter 7 can swing left and right, the detection end of the non-contact level meter can cover most positions in the carriage 2 to obtain the height information of the material in the carriage 2, specifically, the non-contact level meter 7 transmits microwave to a detected target, the microwave pulse is reflected back after contacting a detected medium and is received, the processor 12 analyzes and calculates the running time of the microwave pulse, then converts the running time into a level signal, calculates the height information of the material according to the instantaneous angle information of the movable baffle 6 and the non-contact level meter 7 detected by the first angle sensor 8, and combines the angle of the non-contact level meter 7 with the fixed distance information of the bottom of the carriage 2 to judge whether the material is in the carriage 2, and judges whether the material is deposited position and height; the non-contact level meter 7 detects that materials exist in the carriage 2 and the height of the materials continuously decreases, the processor 12 judges that the vehicle is in a discharging state, and the audible and visual alarm 11 cannot be controlled to give an alarm;

3. in the unloading process, the carriage 2 is in a lifting state, and a driver drives the vehicle to carry out unloading while advancing; under the condition, the angle of the carriage 2 detected by the second angle sensor 9 and the third angle sensor is not consistent with the angle of the frame 1, and the processor 12 judges that the carriage 2 is in the lifting state and is not reset; the vehicle speed sensor 13 detects vehicle speed information, and the vehicle speed is less than a preset maximum unloading vehicle speed; the non-contact level meter 7 detects that no material exists in the carriage 2, the processor 12 judges that the vehicle is in a discharging completion state, controls the audible and visual alarm 11 to give an alarm, reminds a driver to complete discharging, and resets the carriage 2 in time;

4. under the condition that the vehicle is loaded with goods, the carriage 2 is in a lifting state, and a driver drives the vehicle to run; under the condition, the angle of the carriage 2 detected by the second angle sensor 9 and the third angle sensor is not consistent with the angle of the frame 1, and the processor 12 judges that the carriage 2 is in the lifting state and is not reset; the vehicle speed sensor 13 detects vehicle speed information; the non-contact level meter 7 detects that materials exist in the carriage 2, the processor 12 judges that the carriage 2 is lifted by mistake when the vehicle is in a transportation state, controls the audible and visual alarm 11 to give an alarm, and reminds a driver to reset the carriage 2 in time.

Examples of processor 12 may include, but are not limited to, a general purpose processor 12, a special purpose processor 12, a conventional processor 12, a digital signal processor 12 (DSP), a plurality of microprocessors 12, one or more microprocessors 12 associated with a DSP core, a controller, a microcontroller, an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) circuit, any other type of Integrated Circuit (IC), a state machine, and so forth.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Claims (8)

1. A carriage safety alarm device of a self-unloading semitrailer comprises a frame (1), a carriage (2) and a hydraulic lifting device (3), wherein the rear end of the carriage (2) is hinged to the tail of the frame (1), the hydraulic lifting device (3) is installed on the frame (1) and is connected with the front end of the carriage (2), the carriage safety alarm device is characterized in that a protective shell (4) is installed at the top of the front end of the carriage (2), an opening (5) is formed in one side, facing the rear end of the carriage (2), of the protective shell (4), a movable baffle (6) used for opening and closing the opening (5) is hinged to the top of the protective shell (4), a non-contact type level meter (7) used for obtaining height information of cargos in the carriage (2) and a first angle sensor (8) used for detecting the angle of the movable baffle (6) are installed on the end face, facing the interior of the protective shell (4), a second angle sensor (9) used for detecting the angle of the carriage (2) is installed on the interior wall of the protective shell (4), and a third angle sensor (10) used for detecting the angle of the movable frame (1) is installed on the frame (1); the device is characterized by further comprising an audible and visual alarm (11) and a processor (12), wherein the processor (12) is electrically connected with the non-contact level meter (7), the first angle sensor (8), the second angle sensor (9), the third angle sensor (10) and the audible and visual alarm (11).

2. The compartment safety warning device for the dump semi-trailer according to claim 1, further comprising a vehicle speed sensor (13), wherein the vehicle speed sensor (13) is used for detecting the vehicle speed of the dump semi-trailer, and the processor (12) is electrically connected with the vehicle speed sensor (13).

3. The carriage safety alarm device of the dump semi-trailer according to claim 1, characterized in that the non-contact level gauge (7) is an ultrasonic level gauge, a microwave level gauge or a radar level gauge.

4. The carriage safety warning device of the dump semi-trailer according to claim 1, characterized in that when the carriage (2) is in the lifted state, the free end of the movable baffle (6) is away from the protective shell (4) to open the opening (5).

5. The carriage safety alarm device of the dump semi-trailer according to claim 1, characterized in that a first cushion pad (14) is mounted on the protective shell (4) at the bottom of the opening (5), and the first cushion pad (14) is used for being in contact fit with the movable baffle (6).

6. The carriage safety alarm device of the dump semi-trailer according to claim 1, characterized in that a rain-proof baffle (15) is fixed on the top of the protective shell (4), and the rain-proof baffle is positioned above the movable baffle (6).

7. The carriage safety alarm device of the dump semi-trailer according to claim 6, wherein one end of the rain-proof baffle (15) is provided with a bending part (16), and the bending part (16) is used for being in contact fit with the movable baffle (6) to limit the rotation angle of the movable baffle (6).

8. The carriage safety alarm device of the dump semi-trailer according to claim 7, characterized in that the end surface of the bending part (16) facing the opening (5) is provided with a second buffer cushion (17), and the second buffer cushion (17) is used for being in contact fit with the movable baffle (6).

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