52results about How to "Avoid flick" patented technology

A light-emitting diode (LED) tube lamp comprises a lamp tube, a first rectifying circuit, a filtering circuit and an LED driving module. The lamp tube has a first pin and a second pin for receiving an external driving signal. The first rectifying circuit is coupled to the first and second pins, for rectifying the external driving signal to produce a rectified signal. The filtering circuit is coupled to the first rectifying circuit, for filtering the rectified signal to produce a filtered signal. The LED driving module is coupled to the filtering circuit to receive the filtered signal for emitting light. Wherein, the filtering circuit includes a capacitor and an inductor connected in parallel and between one of the first and second pins and the first rectifying circuit, and the parallel-connected capacitor and inductor are configured for presenting a peak equivalent impedance to the external driving signal at a specific frequency.

A steering control method for a trailer includes firstly, controlling steering of front wheels of a tractor and acquiring deflection angles theta 1 of inner steering front wheels of front wheels of the tractor and an included angle alpha between a longitudinal central vertical plane of the tractor and a longitudinal central vertical plane of the trailer; and secondly, controlling steering of other pairs of steering wheels of the trailer, so that deflection angles of various other inner steering wheels on the tractor meet an inequality of arctan [(Li / L1)Xtan(theta 1)-3 degrees]< / =theta i< / ={arctan[(Li / L1)Xtan(theta 1)]+3 degrees, and deflection angles of various inner steering wheels on the trailer meet an inequality of [alpha-arctan(Z / P)-3 degrees]< / =theta j< / =[alpha-arctan(Z / P)+3 degrees]. The invention further provides a controller, the trailer and a steering system of the same. The steering control method, the controller, the trailer and the steering system have the advantages that the various wheels of the trailer can at least rotate around the same steering central area, abnormal abrasion to tires is obviously relieved, and the steering stability and the passing ability of the trailer are improved.

The invention relates to a stable sleeve-dropping method for a moveable sleeve of a hot milling machine and belongs to the technical field of steel rolling. According to the method, a sleeve-dropping controller controls a sleeve-dropping process of a rear moveable sleeve according to the following steps: tracking the position of a strip steel tail; confirming a sleeve-dropping position; establishing a sleeve-dropping angle control function; and lastly, after detecting and confirming that the strip steel tail reaches the confirmed sleeve-dropping position, starting a moveable sleeve rod and simultaneously controlling a sleeve-dropping angle of the moveable sleeve rod according to the sleeve-dropping angle control function till the moveable sleeve drops to the position as high as a rolling level. According to the method, by organically considering a frame driving transmission speed together with the moveable sleeve motion control, in the process of slowly digesting the sleeve quantity, a moveable sleeve roller keeps a tensile force on the strip steel till the moveable sleeve completely drops off, and the drifting phenomenon in a throwing process is prevented while a hollow sleeve isprevented from being formed, thereby achieving the purpose of stably dropping the sleeve.

An adhesive sheet for processing semiconductor wafers and / or substrates comprises a UV- and / or radiation-transmittable base film and an adhesive layer that undergoes a polymerization curing reaction by means of UV rays and / or radiation, wherein the adhesive layer comprises at least a tackifier and a surfactant. The adhesive sheet of the present invention can be to lower the adhesive strength to the optimal level during pick up or the like after irradiation with UV rays and / or radiation, while maintaining adhesion with adherends before irradiation with UV rays and / or radiation by ensuring that, regardless of the texture on the surface of adherends such as semiconductor wafers and / or substrates, the adhering surface favorably conforms to the texture with preserving enough adhesive and cohesive strength.

The present invention discloses real-time braking force distributing device and method for motor vehicle. The real-time braking force distributing device includes one front suspension displacement sensor and one rear suspension displacement sensor for detecting the compression deformations of the front and the back suspension springs separately, and one electronic control unit to accept the detected compression deformations. The real-time braking force distributing method includes the following steps: 1. entering to the main control process to calculate the load ratio between front and rear wheels; 2. recognizing whether the vehicle to be in brake state and selecting whether to enter the braking force distribution; and 3. recognizing whether the vehicle to be in emergency brake state, selecting the boost control sub-process or decompression control sub-process and controlling the front-to-rear braking pressure ratio to equal to the load ratio. The present invention can ensure smooth and safe running.

The invention discloses a three-channel ABS (anti-locked braking system) which is applied to a triaxial semitrailer. Gear rings and corresponding ABS wheel speed sensors are installed at vehicle wheel parts at two sides of a front axle, a middle axle and a rear axle of the triaxial semitrailer; the ABS wheel speed sensors are all connected to an ABS electric control unit; and the ABS electric control unit is connected with control units which are respectively used for controlling the air intake quantity of each vehicle wheel braking air chamber. According to the invention, through the installation of the gear rings and the wheel speed sensors at each vehicle wheel of each vehicle axle for the three-channel ABS, the ABS electric control unit accurately controls the braking air chamber of each vehicle axle in braking according to the received wheel speed information from each vehicle wheel, and the control is more accurate, vehicle wheel locking, side slipping and even tail whipping in braking can be prevented effectively, and the vehicle wheel abrasion is reduced obviously; and the ABS provided by the invention is compact in structure, is beneficial to prolonging the service life of the vehicle wheels, and guarantees the vehicle traveling safety.

The invention discloses a garden engineering garbage treatment device. The garden engineering garbage treatment device comprises a garden engineering garbage treatment vehicle body, wherein a wood dust storage box is welded on the garden engineering garbage treatment vehicle body; the wood dust storage box comprises a box body and a box door; the box body is in rotary connection with the box doorthrough a rotary shaft; a power output assembly is fixedly connected onto the upper end of a crushing assembly through a screw; the invention further discloses a realization method of the garden engineering garbage treatment device; a wood dust discharging arc-shaped pipeline in the crushing assembly is communicated and connected with the box body in the wood dust storage box; the box body is a sealed box and can be used for stopping rainwater and storing wood dust; garden garbage including tree branches can be cut and crushed even in rainy days; and the crushing assembly and the power outputassembly do not need to be arranged independently, and the crushing assembly and the power output assembly are directly arranged on the garden engineering garbage treatment vehicle body, so that conditions of drifting and violent vibration of vehicle hanging type crushing machines in a turning process are avoided.

The invention discloses a hinged chain, a guardrail block and a guardrail by a plurality of embodiments; wherein, the hinged chain is composed of two or more than two hinged elements used for being fixedly installed on the guardrail block and more than one tension member connected on the hinged elements, and the tension member is connected between any two hinged elements. The guardrail block comprises a guardrail body internally provided with more than one hinged elements used for connecting the tension member; one end or both ends of the guardrail body is / are provided with hollow parts, and the hinged part of the hinged element extends to the hollow part. The guardrail is composed of two or more than two guardrail blocks and more than one tension members, and more than one tension members are connected between any two of the guardrail blocks. The guardrail blocks are reasonably hinged and arranged by the hinged chains so as to absorb partial pump energy of accident vehicles without increasing the space of the isolation belt and improve the security of drivers and traffic.

The invention relates to a high-strength steering device of a semi-trailer towing vehicle. The high-strength steering device comprises a lower tray connected with the towing vehicle and an upper tray connected with a semi-trailer, the lower tray is connected with the upper tray, the upper tray and the lower tray can rotate relative to each other, and a steering mechanism is arranged between the lower tray and the upper tray. When the lower tray steers at a preset angle, the steering mechanism is connected with the lower tray and rotates along with the lower tray, and when the lower tray rotates to the positions beyond the preset angle, the steering mechanism is separated from the lower tray and is connected with the upper tray. The steering device comprises a gear ring which is arranged between the upper tray and the lower tray, and the gear ring is connected with wheels of the semi-trailer and is made of high-strength steel which comprises 0.38%-0.50% of C, 0.1%-0.3% of Si, 0.6%-0.9% of Mn, 1.1 %-1.5% of Cr, 0.15%-0.25% of Ni, 0.02%-0.1% of Nb, 0.1%-0.3% of V, and the balance Fe. The high-strength steering device can steer within reasonable angles and is long in service life.

The invention provides an auxiliary vehicle driving method based on image binarization processing. The auxiliary vehicle driving method is characterized by comprising the steps of: 1) installing a setof CCD camera on each of the front and rear ends of a vehicle; ...; 4) adjusting a vehicle direction by a driver of the vehicle so that a center line of a road appearing in a display device does notdeviate from a mark line of the display device; 5) and setting half width of the road as RW, half width of the vehicle as VW and an offset distance of field-of-view center lines of the CCD cameras from the center line of the road as L, calculating the offset distance L in a binarized image of the CCD camera at the rear end of the vehicle driving direction in real time, displaying alarm informationin the display device corresponding to the CCD camera at the rear end of the vehicle driving direction when L is greater than or equal to RW-VW, reminding the vehicle driver to reduce speed, and adjusting the vehicle direction so as not to drive beyond the edge of the road. The auxiliary vehicle driving method can assist large-sized or multi-drive vehicle driver in mastering vehicle condition when the driver is in dark or has a visual dead zone, overcomes the complicated working environment interference, and meets the high-precision road driving requirements.

The invention discloses a hydraulic pressure adjustment device, which comprises the following parts: valve seat, valve lid, end lid, adjustment ring, adjustment valve, non-return seat, non-return cap, non-return valve, adjustment nut lid, first spring, second spring and third spring, wherein the valve seat, valve lid and end lid are connected into assembly cavity sequently; the adjustment valve, non-return seat, non-return cap, non-return valve, adjustment nut lid, first spring, second spring and third spring are set in the assembly cavity; the adjustment ring is set on the periphery of valve seat. The invention is cascaded on the braking oil-way of vehicle to control the oil feeding time difference and pressure difference for vehicle, which shortens the braking distance to avoid the accident.

A traffic mechanical traction device in accordance with the present invention, The first slider comprises a first casing, an upper surface and a lower surface of the inner wall of the first casing areprovided with a first sliding groove, two first sliding grooves are slidably connected with a first sliding block, and the opposite surfaces of the two first sliding blocks are fixedly connected witheach other through a first connecting plate, and two first sliding sleeves are clamped on the side surfaces of the first connecting plate. The utility model relates to a traffic mechanical traction device with an automatic adjustment function, through the first rotational shaft, First spring, steering mechanism, third axis of rotation, a fit between the second spring and the second rotational shaft, The traffic mechanical traction device not only prevents the rear-end collision between the faulty vehicle and the consignment vehicle due to inertia and other reasons, but also makes the consignment vehicle and the faulty vehicle have a certain buffer force, thereby reducing the impact force of the faulty vehicle on the consignment vehicle due to inertia or failure to brake in time, so that the faulty vehicle and the consignment vehicle can be well protected.

The invention discloses a high-resistance stable steering device of a semi-trailer tractor. The high-resistance stable steering device of the semi-trailer tractor comprises a lower pallet and an upper pellet, wherein the lower pallet is connected with the tractor; the upper pallet is connected with the semi-trailer tractor; the lower pallet is connected with the upper pallet; the upper pallet and the lower pallet can rotate relatively; and a steering mechanism which can rotate and is connected with semi-trailer wheels is arranged between the lower pallet and the upper pallet. When the lower pallet steers in a preset angle, the steering mechanism is connected with the lower pallet and rotates along with the lower pallet; and when the lower pallet rotates out of the preset angle, the steering mechanism is separated from the lower pallet and is connected with the upper pallet. The high-resistance stable steering device of the semi-trailer tractor is simple in structure, is practical and convenient and has high wear resistance; and the service life of the high-resistance stable steering device is prolonged.

The invention discloses an embedded electric drive course stability augmentation type skid landing device and a working method thereof. The embedded electric drive course stability augmentation type skid landing device comprises an outer cylinder, an upper torsion arm, a lower torsion arm, a support, a skid, a guide wheel, an upper end cover, a piston rod, a rocker arm, a mounting plate, a friction plate, a load sensor, a buffer, a skid pitching buffer and an actuator cylinder module. The invention particularly provides an embedded electric drive course stability augmentation type skid landingdevice and a working method thereof. When the aircraft deviates in the sliding direction, the system controls the brushless motor to drive the rocker arm connecting rod mechanism to press the friction plate down the road surface to generate pressure, therefore, the binding force between the single-side landing device and the road surface is changed, the fuselage is subjected to yawing moment, sothat the skating direction of the aircraft is corrected, and the skating course stability of the aircraft is enhanced; the load sensor can measure the pressure of the friction plate on the road surface and provide feedback, the friction plate is made of a heat-resistant composite material, and specific lines are machined at the bottom of the friction plate, so that extra lateral force is provided,and the drifting phenomenon of the aircraft is reduced.

The invention discloses an automatic decelerating device for automobile characterized in that a touchdown power wheel is arranged in the incurve of the concave pressure cylinder, three parallel transmission change wheels are arranged on the pressure cylinder open end, each of the two outer sides of the concave pressure cylinder is equipped with a couple of transmission change wheels connected by a connecting rod, and the connecting rod is equipped with a transmission rod connecting to the concave pressure cylinder piston, two of the transmission change wheels on the concave pressure cylinder open end connect to the transmission change wheels on the two sides via a transmission belt, and a horizontal pressure cylinder is arranged on the other end of the concave pressure cylinder, the two ends of the piston of said horizontal pressure cylinder are provided with friction brushes which can contact with the friction leather on the rim of the transmission change wheels on the two sides of the concave pressure cylinder; and both of the two cylinders are equipped with communicating pipes on bottom; and a seal cylinder fixed on the obstacle crossing pressure steel plate is equipped on the lower part of the concave pressure cylinder; the obstacle crossing pressure steel plate clings to the seal friction leather and both of them have a communicating hole to communicate with the seal cylinder bottom. The invention can efficiently shorten the braking distance and prevent the automobile from swerving and skidding.

The invention relates to a motor vehicle brake, and in particular relates to a retractable brake. The upper end of a shock absorber is hinged with a motor vehicle chassis or suspension, and the lower end is hinged with the middle part of a swing rod; the left end of the swing rod is hinged with a left fixing block through a connecting rod; the left fixing block is fixed with a shock absorption cylinder of the shock absorber; the right end of the swing rod is hinged with a brake wheel; and the upper end of an oil cylinder or air cylinder is hinged with the motor vehicle chassis or suspension, the lower end of the oil cylinder or air cylinder is hinged with the right fixing block, and the right fixing block is fixed with the shock absorption cylinder of the shock absorber. The motor vehicle brake has large brake force and short brake distance.

The invention discloses a road anti-collision device applicable to a crossing. The anti-collision device is mainly used for triggering anti-collision deployment bars arranged on both sides of an anti-collision cross bar to be deployed after a vehicle collides with a guardrail, so as to increase the impact area of the vehicle and the guardrail. The object of the invention is to provide the road anti-collision device applicable to the crossing aiming at solving the problem that the existing road anti-collision device applicable to the crossing only adopts the passive energy absorption technologyto cushion collision, and ignores the fact that the drifting and tipping of the vehicle are easy to occur. The anti-collision device can increase the contact area with the vehicle in time when an collision occurs, has the shock absorbing function, can prevent the drifting of the vehicle, and prevents or reduces the tipping probability of the vehicle.

The invention discloses a method for processing a large-tonnage large-diameter high-precision cylinder which is characterized by comprising the following steps: 1) connecting static pressure centre rests on a workpiece bed body; 2) adjusting the center height of a plurality of static pressure centre rests; 3) placing workpiece on the static pressure centre rest and ajusting the centre of the workpiece; 4) utilizing a cardan joint (3) to flexibly connecting the workpiece with a faceplate (2); 5) respectively arranging a dial indicator and an oiling film below the workpiece and near the static pressure centre rests, and detecting the thickness of the oiling film; 6) manually adjusting the thickness of the oiling film; 7) detecting whether the thickness of the oiling film changes after the workpiece idles for more than four hours; and 8) locking main supports of the static pressure centre rests. The processing method disclosed by the invention has the characteristics of high efficiency and guaranteed quality.

The invention relates to a safety braking device and method applied when a vehicle suddenly encounters an obstacle during high-speed running. The safety braking device comprises disc brakes arranged on wheels. The disc brakes comprise brake discs and calipers. The safety braking device is characterized by also comprising an electronic control unit (ECU), a speed sensor and a steering wheel angle sensor. The speed sensor and the steering wheel angle sensor are electrically connected with the ECU. The safety braking device also comprises at least one pair of bar-type magnets arranged on an axle and positioned on the both sides of the brake discs, and the ECU is electrically connected with coils of the bar-type magnets of the wheels through a multiplexer switch. By applying the braking device, the speed can be decreased rapidly, the yawing moment is effectively compensated, and drifting and overturning are avoided. The invention also relates to a safety braking method which can automatically assist the traditional disc brake way in rapidly decreasing the speed and effectively compensating the yawing moment.

The invention relates to the technical field of engineering vehicles, in particular to a centering oil cylinder with bidirectional buffering and a crane. The centering oil cylinder with bidirectionalbuffering comprises a cylinder body, a first piston, a second piston and a piston rod, wherein the cylinder body comprises a first chamber, a second chamber and a centering section arranged between the first chamber and the second chamber, the first piston is slidably arranged in the first chamber, the second piston is slidably arranged in the second chamber, one end of the piston rod is arrangedbetween the first piston and the second piston, and an oil return flow channel is arranged in the centering section; and a first buffer cavity is arranged between the piston rod and the first piston,a second buffer cavity is arranged between the piston rod and the second piston, the first buffer cavity and the second buffer cavity both communicate with the oil return flow channel, and the first buffer cavity and the second buffer cavity are both filled with oil. According to the centering oil cylinder with the bidirectional buffering, buffering protection of the piston rod is realized in thecentering process, so that reverse movement of the piston rod, caused by collision between the piston rod and the first piston or the second piston, is avoided, and tail flick is avoided.

The invention discloses a braking method which is characterized in that a band-shaped object is arranged on a frame at the upper end of a wheel; one end of the band-shaped object is fixed with the frame; the band-shaped object is hidden in the frame; when a brake fails, the band-shaped object is discharged by a method in the prior art and falls on the ground in front of the wheel, so that the wheel can be pressed on a band of the brake, and the wheel loses the driving force action and the rolling action relative to the ground; therefore, the braking method is implemented; an effect of emergency braking can be achieved; when the brake fails, the danger can be headed off, and the risk is avoided; the braking method has the characteristics of reliable performance, obvious effect and the like.

The invention discloses a traffic mechanical traction device with a regulating function, in accordance with that present invention, The first slider comprises a first casing, an upper surface and a lower surface of the inner wall of the first casing are provided with a first sliding groove, two first sliding grooves are slidably connected with a first sliding block, and the opposite surfaces of the two first sliding blocks are fixedly connected with each other through a first connecting plate, and two first sliding sleeves are clamped on the side surfaces of the first connecting plate. The utility model relates to a traffic mechanical traction device with an automatic adjustment function, through the first rotational shaft, First spring, steering mechanism, third axis of rotation, a fit between the second spring and the second rotational shaft, The traffic mechanical traction device with the regulating function not only prevents the rear-end collision between the faulty vehicle and theconsignment vehicle due to inertia and other reasons, but also makes the consignment vehicle and the faulty vehicle have a certain buffer force, thereby reducing the impact force of the faulty vehicle on the consignment vehicle due to inertia or failure to brake in time, so that the faulty vehicle and the consignment vehicle can be well protected.

The invention discloses a tire burst safety guaranteeing auxiliary device applicable to a four-driven unmanned mine truck, and aims to improve the safety of the unmanned mine truck after tire burst of a wheel and ensure the working efficiency of the mine truck. The auxiliary device consists of a driving mechanism, a transmission mechanism, a connecting structure and an auxiliary wheel, wherein the driving mechanism adopts an auxiliary motor as a power source of the safety guaranteeing auxiliary device; the transmission mechanism adopts a rod system, and comprises a plurality of transmission rods working together; the connecting structure adopts a hinged structure, and is used for fixing the safety guaranteeing auxiliary device and connecting the mechanisms; the auxiliary wheel is equipped with a wheel hub driving motor, is mounted on a fork-shaped mechanism, and provides a part of a braking force for the unmanned mine truck after the tire burst. The tire burst safety guaranteeing auxiliary device has the characteristics of convenience in mounting and dismounting, convenience in maintenance, suitability for working in a harsh working condition and the like; during working, the tire burst safety guaranteeing auxiliary device has a self-locking function so as to improve the working reliability thereof.

The invention discloses a control method for dynamic falling of a loop of a hot continuous rolling mill. The control method comprises the following steps: 1, calculating the tail length of strip steel in front of the loop; step 2, performing secondary correction on the height of the loop, controlling matrix time, and tracking the accumulated length of strip steel operation; and 3, judging a dynamic loop falling starting point, and carrying out loop falling after conditions are met. According to the method, different loop heights are combined, loop dynamic loop falling control is adopted, and the loop stability of the strip steel in the steel throwing process is greatly improved through the strip steel operation accumulated length control technology, the loop height secondary correction technology and the matrix time control technology.

The invention discloses a tractor for loading nursery stock, which comprises a trailer stand, an engine arranged on the trailer stand, and a front wheel shaft and a rear wheel shaft that are respectively arranged at the front and the rear ends of the trailer stand, wherein the two ends of the front wheel shaft and the rear wheel shaft are respectively provided with a front roller wheel and a rear roller wheel; the tractor for loading nursery stock is characterized in that the trailer stand is provided with a transmission shaft connected with the engine; the transmission shaft is provided with a front driving device which is connected with the front wheel shaft and controls the steering and rotating of the front roller wheel; the tail end of the transmission shaft is connected with a variable speed clutch, the other end of which is connected with a rear driving shaft; and the rear driving shaft is connected with the rear wheel shaft by a rear differential mechanism and drives the rear roller wheel to rotate. The invention aims at overcoming the defects of the prior art, and provides the tractor for loading nursery stock; and the tractor is simple in structure, convenient for installation and use, labor-saving and time-saving, low in cost and convenient for maintenance, and avoids the phenomena that the roller wheels slip in mud and can not climb up a slope.

The invention discloses an automatic decelerating device for automobile characterized in that a touchdown power wheel is arranged in the incurve of the concave pressure cylinder, three parallel transmission change wheels are arranged on the pressure cylinder open end, each of the two outer sides of the concave pressure cylinder is equipped with a couple of transmission change wheels connected by a connecting rod, and the connecting rod is equipped with a transmission rod connecting to the concave pressure cylinder piston, two of the transmission change wheels on the concave pressure cylinder open end connect to the transmission change wheels on the two sides via a transmission belt, and a horizontal pressure cylinder is arranged on the other end of the concave pressure cylinder, the two ends of the piston of said horizontal pressure cylinder are provided with friction brushes which can contact with the friction leather on the rim of the transmission change wheels on the two sides of the concave pressure cylinder; and both of the two cylinders are equipped with communicating pipes on bottom; and a seal cylinder fixed on the obstacle crossing pressure steel plate is equipped on the lower part of the concave pressure cylinder; the obstacle crossing pressure steel plate clings to the seal friction leather and both of them have a communicating hole to communicate with the seal cylinder bottom. The invention can efficiently shorten the braking distance and prevent the automobile from swerving and skidding.

The invention discloses a transportation machinery traction device with an adjustment function, which relates to the technical field of transportation machinery, and comprises a first casing, the upper surface and the lower surface of the inner wall of the first casing are both provided with a first chute, and The first sliding blocks are slidably connected in the two first sliding grooves, and the opposite surfaces of the two first sliding blocks are fixedly connected through the first connecting plate, and the sides of the first connecting plate are clamped with two first sliding blocks. set. The traffic machinery traction device with automatic adjustment function, through the cooperation between the first rotating shaft, the first spring, the steering mechanism, the third rotating shaft, the second spring and the second rotating shaft, can not only prevent the malfunctioning vehicle from The reason is that there is a rear-end collision with the consigned vehicle, which also makes there is a certain buffer force between the consigned vehicle and the faulty vehicle, which can reduce the impact of the faulty vehicle on the consigned vehicle due to inertia or failure to brake in time, so that the consigned vehicle and the faulty vehicle can be The faulty car plays a very good protective role.

An automobile traction device in accordance with that present invention, The first slider comprises a first casing, an upper surface and a lower surface of the inner wall of the first casing are provided with a first sliding groove, two first sliding grooves are slidably connected with a first sliding block, and the opposite surfaces of the two first sliding blocks are fixedly connected with eachother through a first connecting plate, and two first sliding sleeves are clamped on the side surfaces of the first connecting plate. The utility model relates to a traffic mechanical traction devicewith an automatic adjustment function, through the first rotational shaft, First spring, steering mechanism, third axis of rotation, a fit between the second spring and the second rotational shaft, The automobile traction device not only prevents the rear-end collision between the faulty vehicle and the consignment vehicle due to inertia and other reasons, but also makes the consignment vehicle and the faulty vehicle have a certain buffer force, thereby reducing the impact force of the faulty vehicle on the consignment vehicle due to inertia or failure to brake in time, so that the faulty vehicle and the consignment vehicle can be well protected.