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542 results about "Towing" patented technology

Hitch assembly

A pintle hitch assembly includes a hitch member assembly comprising at least two hitch members projecting transverse to and radially outward from a shaft. A hitch member bearing rotatably supports the shaft of the hitch member assembly and is connected to a hitch member bearing mount that is adjustably securable to a draw bar assembly. A collar is secured to the hitch member bearing, and the shaft extends rearward through the collar and between the hitch member bearing and the hitch member assembly. A locking arm is rotatably secured to the hitch member bearing mount and is rotatable from a closed position, which is configured for locking the towing ring in an opening formed between the collar, the hitch member assembly, and the locking arm, to an open position.
Owner:B & W CUSTOM TRUCK BEDS

Low-cost unpowered plate trailer real-time positioning method and device, medium and program product

The invention discloses a low-cost unpowered plate trailer real-time positioning method and device, a storage medium and a computer program product, and the method comprises the steps: configuring a scanner at a tractor end, configuring a passive label at a plate trailer end, collecting a unique device ID periodically broadcasted by the passive label through the scanner, and determining the grade of the received RSSI value of the unique equipment ID through the scanner, and sending a traction signal to the plate trailer end based on the grade of the RSSI value. According to the invention, the trailer end is sensed based on the tractor head, so that high-cost-performance and high-availability positioning tracking of the power-free trailer is realized. According to the invention, the trailer end can be sensed based on the tractor end, and high-cost-performance and high-availability positioning and tracking of the power-free trailer can be realized.
Owner:FOUNDER INT WUHAN

Gearbox for electric drive axle, electric drive axle and automobile

The invention discloses a gearbox for an electric drive axle. Comprising a main motor, an input shaft, an intermediate shaft, an output shaft, a gear shifting mechanism, a planetary gear mechanism, a fixed tooth holder, a first power transmission mechanism used for transmitting power from the main motor to the input shaft, and a second power transmission mechanism used for transmitting power from the input shaft to the intermediate shaft and the output shaft. The planetary gear mechanism comprises a sun gear connected with the intermediate shaft, a planet carrier assembly connected with the differential mechanism assembly, a planet gear arranged on the planet carrier assembly and meshed with the sun gear, and a gear ring assembly meshed with the planet gear. The gear shifting mechanism is arranged to be matched with the fixed tooth holder, the planet carrier assembly and the gear ring assembly, and the planet gear mechanism is controlled to be switched among the neutral gear state, the first gear state and the second gear state. According to the gearbox for the electric drive axle, the planetary gear mechanism capable of being switched to the neutral gear state is arranged, and mechanical disconnection of the tail end of a transmission chain during parking power take-off of the electric drive axle and cruising and trailer can be achieved. The invention further discloses an electric drive axle and an automobile.
Owner:ANHUI HANDA TECHNOLOGY CO LTD

Submarine optical cable curve burying ship position line planning method and system based on parameterization calculation

The invention relates to the technical field of submarine optical cable burying, in particular to a submarine optical cable curve burying ship position line planning method and system based on parameterization calculation. The method comprises the following steps: setting a routing point and a steering point, determining the radius of an internally tangent turning circle, and enabling the internally tangent turning circle to be respectively tangent to the point; calculating the horizontal towing distance of the burying plough; respectively extending from the tangent points along the extension direction of the route to obtain the stern position at the beginning of steering and the stern position at the end of steering, and calculating the radius of the ship position circle; and calculating a ship head direction change angle arc length, a ship true course, a ship relative azimuth angle and a ship moving distance when the ship moves in the true azimuth angle each time when the ship moves each time, and finally completing the calculation of the embedded ship position when the ship steers. The technical problems that in the prior art, submarine optical cable steering and burying depend on visual observation and past experience of an operator, so that precision is poor, and the burden of the operator is heavy are effectively solved.
Owner:FENGHUA MARINE ENGINEERING EQUIPMENT CO LTD

Smart towing system

The present disclosure provides a towing system for controlling the operation of a towed vehicle through the towing vehicle, where the towing vehicle comprises an assembly of a control lever, an e-pedal, and a dashboard screen, wherein the control lever is pulled backwards to generate and collect energy from the towed vehicle into a battery and control lever is pushed forward to use such energy to selectively propels the towing vehicle forward to gain momentum thus easing the load on the engine of the towing vehicle.
Owner:MALOSCHIK PETER

System and method for judging dragging relation between powered headstock and unpowered trailer

The invention discloses a system for judging a dragging relation between a powered headstock and an unpowered trailer, and relates to the field of systems for judging the dragging relation between the powered headstock and the unpowered trailer, which comprises a powered vehicle-mounted terminal and an unpowered vehicle-mounted terminal, each of the powered vehicle-mounted terminal and the unpowered vehicle-mounted terminal comprises a near-field Bluetooth local area network, an inertial navigation system, a Beidou / GPS positioning system, a 2G / 4G network access system, a platform management system and a solar power supply. According to the invention, through the near-field Bluetooth local area network, the unpowered vehicle-mounted terminal can conveniently send the Bluetooth short-distance networking application to the powered vehicle-mounted terminal through the near-field Bluetooth local area network, so that networking between the unpowered vehicle-mounted terminal and the powered vehicle-mounted terminal in the range is realized; relative dynamic and static states and position error information are determined through a carried inertial navigation system and a Beidou / GPS positioning system, and comparison is carried out according to the dynamic and static states of the unpowered vehicle-mounted terminal and the power vehicle-mounted terminal and the position information of the unpowered vehicle-mounted terminal and the power vehicle-mounted terminal.
Owner:LONGXUN (XUZHOU) INTELLIGENT TECH CO LTD

Aircraft front wheel turning angle monitoring device and method

The invention belongs to the technical field of aircraft assembly, and discloses an aircraft front wheel turning angle monitoring device and method, and the device comprises a mechanical sensing module, a signal processing module and a signal receiving device. The mechanical sensing module is detachably mounted on a shock strut of a nose landing gear of an aircraft, and the rotary motion of the shock strut is converted into a linear displacement signal through a gear transmission mechanism in the mechanical sensing module; the signal processing module analyzes the displacement signal into a front wheel turning angle electric signal; and the signal receiving device receives and displays the angle value. The invention further discloses a corresponding monitoring method. The device adopts a modular and non-invasive design, solves the problems that the turning angle of the front wheel cannot be monitored in real time and the over-limit risk exists in the aircraft traction process, has the advantages of being convenient and fast to install, accurate in measurement and wide in applicability, and remarkably improves the safety and the working efficiency of flight guarantee.
Owner:AVIC XAC COMMERCIAL AIRCRAFT CO LTD

System for assisting the drag operation of a floating wind turbine

A system and method for assisting a drag operation of a floating wind turbine (FWT) is disclosed. The FWT is provided with a wireless communication system and at least one position sensor for measuring the position of the FWT in at least three degrees of freedom. The main towing vessel is connected to the floating wind turbine by a towing line. The main dragging ship comprises a winch, a DP system and a two-way wireless communication system. A drag assist system / module / controller may be combined with a DP system. The one or more auxiliary drag vessels are connected to the floating wind turbine by drag lines. And one or more auxiliary dragging ships are provided with a two-way wireless communication system. A drag assist system / module / controller calculates setpoints (forces and directions) for all drag ships based on one or more input parameters from the floating wind turbine, one or more input parameters from each auxiliary drag ship, and one or more input parameters from the main drag ship.
Owner:KONGSBERG MARITIME AS

A force feedback handle and its control method

ActiveCN115543010BIndependent motionInteraction control
This invention relates to a force feedback handle and its control method, belonging to the field of human-computer interaction technology based on tactile and force sensing. The force feedback handle is not only miniaturized but also has advantages such as low moment of inertia and good response, making it applicable to gantry crane operation, robot manipulation in extreme environments, and helicopter towing. The force feedback handle of this invention exhibits independent motion in two degrees of freedom, requiring no decoupling. In use, by interactively controlling the position of the handle in both degrees of freedom with the feedback force—that is, increasing the absolute value of the position in one degree of freedom corresponds to a corresponding increase in the damping force in the other—accidental activation can be prevented.
Owner:YANSHAN UNIV

Automobile towing bracket with adjustable height

The utility model discloses a height-adjustable automobile towing bracket, which relates to the technical field of automobile towing brackets, and comprises a rear bracket body, the top of the rear bracket body is fixedly connected with a bracket frame, the inside of the bracket frame is fixedly connected with a plurality of cross rods, and the plurality of cross rods are distributed at equal intervals; a cross beam is arranged above the frame, supporting assemblies are arranged on the two sides of the cross beam, each supporting assembly comprises a supporting column, a T-shaped groove is formed in the bottom end of each supporting column, and the supporting columns are connected to the connecting positions of the cross rods and the frame in an inserted mode through the T-shaped grooves. According to the height-adjustable automobile towing bracket, by arranging the cross beam, the supporting columns, the T-shaped grooves and other structures, the connecting characteristic of the cross rod and the bracket frame is ingeniously utilized, the butt joint stability of the supporting columns, the cross rod and the bracket frame is improved, and the supporting columns are positioned at the connecting positions of the cross rod and the bracket frame through the gravity of an automobile body; meanwhile, the distance between the two cross beams and the height of the cross beams can be flexibly adjusted, and the use efficiency of the automobile towing bracket is improved.
Owner:QINGDAO DERUICHENG ELECTRICAL EQUIP CO LTD

Autonomous line pulling system

An autonomous utility vehicle can include a towing component. The vehicle can further include a fastening component attached to the towing component, and configured to fasten to a cable to be pulled by the vehicle. The vehicle can further include processor(s) coupled to a memory having instructions stored therein, which when executed by the processor(s), cause the vehicle to: detect a tension of the cable, determine whether the tension of the cable is detected, in response to determining that the tension of the cable is detected, determine whether the tension of the cable has exceeded a tension threshold, and in response to determining that the tension of the cable has exceeded the tension threshold, adjust at least one of: a speed of the vehicle or a heading of the vehicle.
Owner:BOTCREW TECHNOLOGIES CORP

Method for determining the fuel consumption of a specific combination of a towing vehicle with a trailer or semi-trailer

The invention relates to a method for determining the fuel consumption of a combination (K1 to K8) of a towing vehicle (TR) with a trailer (AN), wherein fuel consumption data (VD) of a fleet of towing vehicles (TR) with trailers (AN) are collected, wherein trailer information relating to the trailer (AN), including an axle configuration, a model (A, B, C, D) and a vehicle identification number (I, 1, 2, 3, 4, 7), a tire pressure, a tire temperature and / or a brake application, is collected in the towing vehicle (TR), wherein vehicle data of the towing vehicle (TR), including energy consumption, route data, speed data, a model (A, B, C, D) and a vehicle identification number (I, 1, 2, 3, 4, 7), is recorded in the towing vehicle (TR), wherein a fuel consumption calculation is performed for a specific combination (K1 to K8) or for a structurally identical combination (K1 to K8) with a towing vehicle (TR). Type (A, B, C,D) and a trailer (AN) of the same type (A, B, C, D) is carried out using the information obtained for this purpose, wherein the consumption data (VD) of the fleet of towing vehicles (TR) with trailers (AN) are collected in a backend (BE) and / or in a cloud, wherein for certain configurations consumption-relevant parameters are resolved according to towing vehicle (TR) and trailer (AN), wherein the trailer information and the vehicle data are transferred to the backend (BE), wherein the consumption calculation is carried out on request in the backend (BE).
Owner:DAIMLER TRUCK AG

Vehicle exterior environment picture generation method and device and vehicle

The invention discloses a method and device for generating an environment picture outside a vehicle and the vehicle, and relates to the technical field of vehicles. The method comprises the steps of determining a three-dimensional semantic map corresponding to an external environment of a trailer based on point cloud data and image data corresponding to the external environment of the trailer; determining a virtual model corresponding to the trailer device based on the current attitude data and the trailer parameters of the trailer device included in the trailer; based on the three-dimensional semantic map and the virtual model, displaying a virtual view image corresponding to the trailer; the virtual view picture comprises external environment information of the trailer. In this way, the view coverage rate and accuracy of the generated vehicle exterior environment picture can be improved.
Owner:CHONGQING LANDIAN AUTOMOBILE TECHNOLOGY CO LTD

Emergency separation traction system and method for power battery of new energy automobile

The invention discloses a power battery emergency separation traction system and method for a new energy vehicle, and the system comprises a thermal runaway precursor detection and triggering module which is used for collecting vehicle risk parameters and calculating the risk level; the battery assembly backward separation driving module is used for releasing a main connection locking structure between the power battery assembly and the vehicle body after receiving the separation traction triggering signal, so that the power battery assembly moves backwards to a safe position far away from a driving cabin along the longitudinal direction of the vehicle body under the constraint of the guiding and limiting structure; the limited traction connection module is used for enabling the power battery assembly and the vehicle body to keep limited connection through a stroke limiting and in-place locking mechanism; and the directional guiding and dragging protection module is used for restraining the degree of freedom of motion of the power battery assembly and providing bottom dragging protection. According to the invention, the road secondary risk caused by complete separation of the power battery assembly can be reduced.
Owner:UNIV OF SCI & TECH OF CHINA

System for changing a direction of travel of a vehicle

The invention relates to a system (100) for changing a direction of travel of a vehicle (1), in particular a towing or utility vehicle, said system comprising at least one primary actuator unit (110) and one secondary actuator unit (120) for initiating and / or carrying out at least one change in the direction of travel of the vehicle, wherein the primary actuator unit (110) and the secondary actuator unit (120) have different designs. The invention also relates to a vehicle (1) and to a control system.
Owner:KB INTELLECTUAL PROPERTY GMBH & CO KG

A truck wheel axle auxiliary device

ActiveCN224426986URoad surfaceControl theory
This utility model relates to the field of vehicle safety and discloses a truck wheel axle auxiliary device, comprising: an external connecting rod installed between the tires; a threaded connection at the rear end of the external connecting rod to an inner bearing tire fixing plate, and a fixing screw installed inside the inner bearing tire fixing plate, the fixing screw being connected to the tire hub; and an easily adjustable expansion mechanism provided at the front end of the external connecting rod. The fixing screw is set at an equal angle on the inner bearing tire fixing plate. An inner connecting rod is connected to the internal slot of the external connecting rod. This truck wheel axle auxiliary device is used to replace a failed wheel axle, assisting towed vehicles and improving rescue efficiency. By linking the rear axle of the vehicle to the auxiliary device and installing the vehicle tires, it achieves a replacement assistance function, solving problems such as slow towing speed, road surface damage, and cornering displacement, increasing vehicle towing speed without causing road surface damage, and is applicable to various road surfaces.
Owner:HANGZHOU HANGQIAN EXPRESSWAY DEV CO LTD

Method and system for the automatic detection of the position of a trailer support wheel

The invention relates to a method for automatically detecting the position of a support wheel (50) of a trailer (20) coupled to a towing vehicle (10). The method comprises the following steps: - Monitoring the suspension travel and damping characteristics of the towing vehicle (10) by means of a suspension damping system (200), wherein sensor data (250) are acquired to detect a limitation of the suspension travel and a change in the damping characteristics; - Capturing image data (350) of the support wheel (50) using a reversing camera (300); - Evaluation of the sensor data (250) of the suspension damping system (200) and the image data (350) of the reversing camera (300) by a data evaluation module (400) to determine a position and state of the support wheel (50) and to detect a potential non-retracted position of the support wheel (50); and / or - Analyzing the image data (350) using image processing algorithms to detect the position and rotation of the support wheel (50); - Triggering a visual and / or acoustic and / or haptic warning in the towing vehicle (10) when the support wheel (50) is detected as not retracted.
Owner:DR ING H C F PORSCHE AG

An automated testing device for an uncoupling system

The utility model discloses a kind of unhooking system automation testing device, it is related to testing device technical field.The utility model includes: test frame;Unhooking device;Towing device, towing device is installed in the top of test frame, and the traction end of towing device is fixedly connected with unhooking device;Impact device, impact device is slidably fitted in test frame, and impact device is matched with unhooking device;Protective device, protective device includes telescopic baffle and restraint component;Wherein, restraint component includes shell, shell is installed in the side of test frame, and baffle lever is slidably fitted in shell.The utility model is rolled up traction rope by the motor drive winding roller of towing device, realizes the automation of unhooking device and impact device lifting.Compared with artificial lifting, the lifting height of this structure can be controlled Impact device, make the initial condition of multiple tests consistent, improve the repeatability of test data;While reducing labor cost, improve test efficiency.
Owner:BEIJING SAIWEIAO SOFTWARE TECH CO LTD

Wind deflector system for a vehicle

A vehicle includes a chassis, a cab supported by the chassis, the cab forming an enclosure with a top and a rear, and a movable wind deflector movably connected to the cab. The wind deflector is configured to move in between a top towing or hauling position, wherein the wind deflector is located at the top of the cab and extends above the top of the cab to redirect airflow over a payload when the vehicle is transporting the payload, and a rear deadheading or bobtailing position, wherein the wind deflector is located at the rear of the cab and extends rearwardly therefrom to prevent air from creating a low pressure area next to the rear of the cab when the vehicle is deadheading or bobtailing without the payload connected thereto.
Owner:INT TRUCK INTPROP CO LLC

A motor vehicle with a mobile railway car that monitors the weight transfer process

The present application belongs to the field of railway tractor technology, and discloses a mobile railway vehicle with a monitoring weight transfer process, comprising: a vehicle body for towing a vehicle; a hook mechanism installed at the rear side of the vehicle body for connecting the vehicle body with the vehicle to be towed; a mobile device comprising wheels, elastic levers, a connecting assembly and a driving assembly, wherein the number of wheels is multiple, and the multiple wheels are symmetrically distributed on both sides of the vehicle body. When the weight of the towed vehicle is large, the wheels will still have a tendency to slip even if the hook mechanism completes the weight transfer. However, due to the presence of the elastic levers, the elastic levers protruding from the wheels will also contact the track or ground while the wheels contact the track or ground, forming additional friction and gripping force, thereby assisting the wheels to drive the vehicle forward, and thus realizing the towing operation.
Owner:武汉铁路职业技术学院

Seeding machine with row spacing adjusting device

The invention discloses a seeding machine with a row spacing adjusting device, the seeding machine comprises a dragging frame and a fertilizer spreading assembly connected and installed on the dragging frame, the dragging frame comprises a front cross arm and a rear cross arm, a lead screw is rotatably connected and installed in the rear cross arm, the thread turning direction of the lead screw is symmetrically distributed in the middle, each side comprises a large pitch section and a small pitch section, and the large pitch section and the small pitch section are symmetrically distributed in the middle. The screw pitch of the large-screw-pitch section is three times that of the small-screw-pitch section, the side face of the rear cross arm is connected and provided with a driving lead screw power mechanism, the rear cross arm is slidably embedded with sliding sleeves in threaded fit connection with the lead screws corresponding to the different threaded sections, the sliding sleeves are connected and provided with seeding monomer assemblies, the front cross arm is slidably embedded with mounting sleeves fixedly connected with the sliding sleeves, and the mounting sleeves are fixedly connected with the mounting sleeves. And a chemical fertilizer ditching assembly is connected and mounted on the mounting sleeve. According to the device, the screw rod is symmetrically arranged in the rotating direction, different screw pitches are segmented, the distance between the seeding monomer assembly and the chemical fertilizer ditching assembly is driven to be synchronously adjusted to a proper line spacing for seeding crops, the requirements of planting with different line spacings are met, and a foundation is laid for high yield.
Owner:SHANDONG GUOFENG AGRICULTURAL MACHINERY CO LTD +1

Obstacle detection controller of articulated vehicle, operation system of articulated vehicle, and obstacle detection method of articulated vehicle

An obstacle detection controller of an articulated vehicle is configured to calculate a surrounding area in a turning direction of a towing vehicle and a towed vehicle, calculate a passage prediction area, calculate an area in which the surrounding area and the passage prediction area overlap as a monitoring area, and output an obstacle detection information indicating that an obstacle that may be entrapped by a turning of the towing vehicle and the towed vehicle has been detected, in response to the obstacle detected by an obstacle sensor being detected within the monitoring area.
Owner:IHI CORP

Dragging wheel device for heavy chain plate machine

The utility model discloses a towing wheel device for a heavy-duty chain plate machine, which comprises a riding wheel shaft, a towing wheel is arranged in the middle of the riding wheel shaft through two bearings, two ends of the riding wheel shaft are respectively connected with bearing seats on two sides of a rack of the heavy-duty chain plate machine, and the connection of the riding wheel shaft and the bearing seats is driven by a motor to ensure the rotation of the riding wheel shaft. According to the tug device for the heavy chain plate machine, the tug bearing capacity is higher, the operation stability is high, the labor intensity of maintenance workers is reduced, and the occurrence frequency of accidents caused by tug damage is reduced.
Owner:JIDONG CEMENT YANTAI CO LTD

A nuclear power unit conventional island heater towing device and method

The application belongs to the technical field of heater towing and provides a nuclear power unit conventional island heater towing equipment and method, which comprises a main slide and an auxiliary adjusting slide; the auxiliary adjusting slide is obliquely arranged at one end of the main slide according to a preset angle; a heater pulling device is fixed at the end of the main slide away from the auxiliary adjusting slide; when the heater is towed, the heater hoisted onto the adjusting slide can be moved on the slide under the action of the heater pulling device, the towing of the heater in the scene is realized, the problems of long assembly period, high cost of shift and crane idling when the large crane is used to transfer the scene are avoided, the towing track can be fully utilized, and the construction period is ensured.
Owner:SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP

A method and equipment for intelligent securing of accident vehicles based on towing services

ActiveCN120635883BRisk levelAccidents vehicle
This invention discloses an intelligent vehicle securing method and equipment for towing operations, belonging to the field of intelligent towing securing technology. It addresses the problem that current towing operations often rely on human experience for vehicle securing, lacking scientific loading and securing techniques for vehicles with special damage needs, and also presenting technical issues related to secondary safety hazards during vehicle transport. The method includes: comparing the real-time 3D architecture model of the accident vehicle with a standard vehicle model's 3D model to determine the loading risk level of the accident vehicle under relevant damage structures; identifying damage characteristics at multiple scales from a set of multi-angle images of the entire vehicle's damage, determining key damage structure data; performing factor influence contribution correlation processing based on damage characteristics on the key damage structure data to obtain structural safety data; and performing local area correction processing on the initial vehicle securing position data to determine reference vehicle securing position data.
Owner:SHANDONG VEHICLE TRAILER NETWORK TECH CO LTD

Large caisson offshore long distance floating multi-tug towed marshalling method

PendingCN122406789AOceanographyCaisson
The application provides a large caisson offshore long-distance floating towing multi-tugboat towing marshalling method, which adopts a main tugboat and four auxiliary tugboats to form a formation; the main tugboat is located at the front of the formation to pull the caisson, and the auxiliary tugboats are distributed around the caisson to control the direction and posture of the caisson through pushing or side towing; the method includes four-stage marshalling conversion: from leaving the dock to the shallow water area, the main tugboat is hoisted and towed in cooperation with 2-4 auxiliary tugboats to control the range of the caisson through side towing and pushing; from the shallow water area to the deep water area, the main tugboat is hoisted and towed in the front, one auxiliary tugboat is stably towed in the rear, and the remaining auxiliary tugboats are on standby; from the deep water area to the shallow water area, the main tugboat is hoisted and towed in cooperation with the auxiliary tugboats on both sides through mixed marshalling of side towing and pushing, and the rear auxiliary tugboat is pushed; from the shallow water area to the bridge position, the four auxiliary tugboats are converted to push the caisson on both sides, and the main tugboat is released and leaves; through the multi-tugboat stage-by-stage cooperation, the method realizes the accurate control and safe positioning of the large caisson offshore long-distance floating.
Owner:CCCC FIRST HIGHWAY XIAMEN ENGINEERING CO LTD +2

Combination of trailer braking and lighting functions

PendingUS20260091742A1Braking action transmissionAutomatic initiationsTrailer brake controllerBattery charge
A towed vehicle controller integrates trailer braking, lighting, and battery charging functions into a single unit communicatively coupled to a towing vehicle data bus. The controller includes a processor, a trailer brake controller component, a trailer lighting component with multiple light drivers, and a trailer battery charge component. The processor receives inputs via the vehicle communication bus and other interfaces, executes brake control algorithms, coordinates activation of trailer lamps, and manages trailer battery charging, including foregoing charging based on braking state or vehicle conditions. Integration of these functions reduces wiring and component count, facilitates OEM or aftermarket installation, and enables coordinated control, diagnostics, and display of trailer status through the towing vehicle's existing electronic systems.
Owner:HORIZON GLOBAL AMERICAS INC

Parking and hanging integrated hand valve and braking mechanism and commercial traction trailer applying parking and hanging integrated hand valve

The parking and hanging integrated hand valve comprises a valve body, an operation handle assembly and a gear adjusting assembly, the operation handle assembly comprises an operation handle and a follow-up control mechanism, and the follow-up control mechanism comprises a spring assembly, a valve and a piston assembly which are coaxially nested in a second cavity of the valve body; the spring assembly is connected with the valve and can push the valve to reciprocate along the axis, an exhaust cavity is formed in the spring assembly, the operating handle is rotatably arranged in the second cavity and is in transmission connection with the spring assembly, a gap is formed between the piston assembly and the inner side wall of the valve body, and the gear adjusting assembly comprises a gear adjusting rod, an elastic limiting mechanism and a one-way valve. The gear adjusting rod is rotatably arranged in the third cavity, the top and the bottom of the gear adjusting rod are provided with a gear groove and a cam extending to the fourth cavity respectively, the elastic limiting mechanism is arranged below the gear groove and matched with the gear groove to achieve limiting, and the one-way valve is arranged in the fourth cavity and driven by the cam. The parking and hanging integrated hand valve solves the problems that in the prior art, a parking and hanging integrated hand valve is complex in structure, high in machining requirement and lack of a limiting structure.
Owner:RUILI GROUP RUIAN AUTO PARTS CO LTD

Driving and dragging dual-purpose tire

The utility model provides a driving and dragging dual-purpose tire, which belongs to the field of tires and comprises two adjacent rows of central pattern blocks which are arranged at intervals and are in central symmetry, and the central pattern blocks are distributed along the circumferential direction of a tread; the tread pattern blocks are two rows of tread pattern blocks which are respectively arranged on one side of the central pattern block at intervals and are distributed along the circumferential direction of the tread; the tire shoulder pattern blocks are arranged on the inner side and the outer side of the tire tread and distributed in the circumferential direction of the tire tread, an inclined tire shoulder transverse groove is formed between every two adjacent tire shoulder pattern blocks in the circumferential direction of the tire tread, the end, close to the tire tread pattern blocks, of each tire shoulder transverse groove is open, and the other end of each tire shoulder transverse groove penetrates through the corresponding tire shoulder pattern block and extends to the corresponding tire shoulder; wherein the width ratio of the central pattern blocks to the tread pattern blocks to the tire shoulder pattern blocks is 1: 1: 1.4. The driving and towing dual-purpose tire solves the technical problems of poor durability, short service life and the like of the driving and towing dual-purpose tire in the prior art.
Owner:QINGDAO DOUBLESTAR TIRE IND CO LTD