139results about How to "Beautiful wiring" patented technology

The invention relates to an automatic wheel hub appearance sorting device based on machine vision. The automatic wheel hub appearance sorting device comprises a detection body. The detection body comprises a positioning assembly, at least three light source camera assemblies and a detection frame, wherein the positioning assembly is used for fixing a wheel hub through a clamping device and driving the wheel hub to make Z-axis movement and rotary movement; the light source camera assemblies are correspondingly arranged on the upper portion, the lower portion and the side edge of the fixed wheel hub; and the detection frame is used for fixing the positioning assembly and the light source camera assemblies through connecting devices, and the light source camera assemblies are connected with an upper computer through network interfaces. Through the automatic wheel hub appearance sorting device, the functions of wheel hub type recognition, fixed centering and automatic appearance detection are achieved, and the automatic wheel hub appearance sorting device has the advantage of being high in detection efficiency and accuracy rate.

The present invention discloses a power distribution cabinet convenient for maintenance. The power distribution cabinet comprises a base, a cabinet body, mounting plates and a cooling cabinet, wherein the cabinet body is arranged above the base; the inside of the cabinet is uniformly provided with power distribution boxes through the partition boards; a first access door, a second access door and a third access door are respectively hinged on the side, corresponding to the power distribution boxes, of the cabinet body; the insides of the power distribution boxes are movably provided with the mounting plates through a scissors-type telescopic rod; the bottoms of the mounting plates are provided with sliding blocks at intervals; and the bottoms of the power distribution boxes are provided with guide rails which matches the sliding blocks; one surface, close to telescopic support rods, of the mounting plates is uniformly provided with heat radiation fins; the middle positions of the other surfaces of the mounting plates are equipped with wire regulating devices; and the outer mounting plates of the wire regulating devices are provided with mounting holes. According to the invention, in a cavity in the base, a stepping platform is fixedly supported through a hydraulic jack, thereby providing convenience for maintenance personnel to repair electrical equipment on the upper portion inside the power distribution cabinet.

The invention discloses a thyristor valve block of a static var compensator (SVC), which comprises one group or more than one group of mutually-tandem anti-parallel thyristor unit modules, resistance-capacitance protection unit modules, plate unit modules, frames and insulators, wherein the anti-parallel thyristor unit modules, the resistance-capacitance protection unit modules and the plate unitmodules are fixed on the frames; each resistance-capacitance protection unit module comprises a capacitor and a resistor; the insulators are fixed on the frames; the insulators are used for supporting and fixing the frame of the thyristor valve block; and each anti-parallel thyristor unit module comprises a thyristor and a profile self-heat dissipation structure, wherein the thyristor and the profile self-heat dissipation structure are pressed and combined together, and the heat dissipation of the thyristor is realized by heat conduction and convection. The thyristor valve block described by the implementation mode in the invention has the advantages of small volume, simple structure assembly and few hidden troubles and is easy to detect and maintain, the valve block can determine the tandem quantity according to the actual capacity conditions of users, and the self-heat dissipation mode is especially suitable for the SVC with medium or small capacity.

The invention belongs to the field of electric bicycle control, and provides an electric bicycle control system based on a CAN bus. The electric bicycle control system comprises a stopwatch unit and units connected with the stopwatch unit. The stopwatch unit is used for receiving an operation instruction of a user and transmitting the operation instruction of the user to the corresponding units through the CAN bus. The corresponding units conduct corresponding operations according to the received operation instruction. The stopwatch unit is further used for receiving operation results and status information fed back by the units to be processed, and meanwhile the processed results are stored and transmitted to an external system. According to the electric bicycle control system, the CAN bus technology maturely and reliably applied in the field of industrial control is introduced into the design of a bicycle, bicycle body equipment is connected together to form a bus network, stability and real-time performance of bus control are brought into full play, and the expandability of the bicycle body equipment is greatly improved, so that functions are stronger, fewer wires are adopted, wiring is more attractive, system operation is more reliable, and the bicycle maintenance cost is lowered; the electric bicycle control system is more intelligent, easier to control and better in riding experience.

The invention discloses a multi-core angle connector for a motor and a motor controller. The multi-core angle connector comprises a shell, an insulation mounting plate, soft copper bars, terminal blocks, insulators, shielding rings, shielding pressure sleeves, a cover plate, a seal gasket and a seal ring. When cables are connected into the connector, the cables are stripped to exposure shielding layers and then connected with the terminal blocks, and the shielding rings are connected to the cables through the shielding pressure sleeves by pressing and clamped on the shell; the insulators sleeve the terminal blocks and pressed into the shell by interference fit; the insulation mounting plate is detachably fixed to the shell; the soft copper bars and the terminal blocks are detachably fixed to the insulation mounting plate; the seal gasket is arranged between the shell and the cover plate; the seal ring is arranged on a mounting surface of the shell. The multi-core angle connector has advantages that product integration is realized, and secondary shielding processing is reduced; a power part is locally bendable, the defect that the copper bars are not coplanar due to tolerance accumulation is improved, effective contact of joint faces of the copper bars is guaranteed, and accordingly high reliability in connection is realized.

The invention relates to the power distribution cabinet technology field and especially discloses a power distribution cabinet. The power distribution cabinet comprises a cabinet body and a cabinet door. Two sides of the cabinet body are provided with first separation plates respectively. The first separation plates divide the cabinet body into two side cavities and one inner cavity. Each first separation plate is provided with several transverse waist-type holes. A problem that existing power distribution cabinet cables are disposed disorderly is effectively solved.

The invention relates to a design of a personal computer, which is applicable to the field of offices, households, educations, designs, scientific researches, calculation, recreation, and industrial controls and the like. Two disadvantages of the prior computer are that first, a host computer, a display, and a sound box and the like are separately arranged, and layout and arrangement are all more complex, in addition, the connection of electric cable such as a power supply line, a video line and the like are crossed, which is not aesthetic. The invention provides a table-type computer, wherein a cabinet and a computer table are combined together, a main cabinet is arranged on the rear portion of the table surface, which integrates with the table surface, a top cover of the main cabinet can be opened, when the top cover is shut, the top cover forms a portion of the table surface, and a mainboard, an electrical source module, and a hard disk in the cabinet are transversely arrayed along the cabinet, and the mainboard is arranged on the rear surface of the cabinet. Compared with the prior computer design, the invention brings convenience to users, saves space, and simplifies connection, which is convenient for cleaning and repairing, and the invention further achieves standardization.

The invention discloses a full-automatic double-reel combined winding machine, which comprises a base, and is characterized in that the base is provided with a double-reel combined winding reel, a magnetic ring clamping device is arranged at the middle position of the double-reel combined winding reel, for containing a magnetic ring, a vertical feeding mechanism which can feed the magnetic ring into the magnetic ring clamping device is arranged under the double-reel combined winding reel, the vertical feeding mechanism is connected with a vibration feeder arranged on the base, the two ends of the double-reel combined winding reel are respectively connected with a wire feeding mechanism which can feed varnished wires into the double-reel combined winding reel, and a controller which is used for controlling the parts to work is arranged at the base. The invention aims to overcome the defects in the prior art, and provides the full-automatic double-reel combined winding machine which has a simple structure, can simultaneously wind wires with different wire diameters, or simultaneously wind two groups of symmetric windings.

The invention is applied to the field of electric vehicle control, and provides a 485 bus-based electric vehicle control system. The 485 bus-based electric vehicle control system comprises master equipment and slave equipment; the master equipment is used for receiving an operation instruction of a user and transmitting the operation instruction to corresponding slave equipment through a 485 bus; the slave equipment performs a corresponding operation according to the received operation instruction; and the master equipment is also used for receiving an operation result and state information fed back by the slave equipment, processes and displays the operation result and the state information, and simultaneously stores and transmits a processing result to an external system. According to the invention, the mature and reliable 485 bus technology applied in the field of industrial control is introduced into design of a bicycle; one master node and a plurality of slave nodes are connected to form a bus network; the stability and the instantaneity of bus control are sufficiently played; furthermore, the expandability of vehicular body equipment is greatly expanded; therefore, the functions are strong; wiring is less and more attractive; the system is more reliable to operate; the maintenance cost of vehicles is reduced; and because of being more intelligent, the system is simpler to operate and control and better in riding experience.

The invention discloses a telescopic type cable guiding device, and relates to the technical field of machine manufacturing. The telescopic type cable guiding device comprises a main arm, a first telescopic arm arranged in the main arm, and a second telescopic arm arranged in the first telescopic arm, wherein the front end of the first telescopic arm is fixedly connected with a second cable guide bracket; the second telescopic arm is provided with a first cable guide bracket; the first cable guide bracket is arranged in the second cable guide bracket; the main arm is provided with a drag chain and a plurality of support roller wheels used for supporting the drag chain; one end of the drag chain is fixed on the main arm, and the other end of the drag chain is a movable end, is connected with the first cable guide bracket and moves along with the first cable guide bracket; the drag chain is internally provided with a separating groove used for arranging a hydraulic hose and a cable; the first telescopic arm and the second telescopic arm are respectively provided with a support plate used for supporting the drag chain to move. The telescopic type cable guiding device can be used for solving the problem that hydraulic oil can not be conveyed by the head of a suspension arm of a telescopic type crane.

The present invention relates to the technical field of manipulators, in particular to a mechanical separation device, which includes a supporting connecting plate, and a staggering mechanism is arranged on the upper end of the supporting connecting plate, and the staggering mechanism includes a staggering base, and the staggering base is movably connected There are staggered blocks, the staggered blocks are provided with a discharge port, and the staggered base is provided with a dislocation hole cooperating with the discharge port, and the dislocation hole is connected with a good product discharge channel and a defective product discharge One end of the staggered base is connected with a staggered cylinder; the invention is simple in structure and saves space. When in use, the product is put into the discharge port through the mechanism, and the staggered cylinder drives the staggered blocks in the staggered base according to the detection results. Move, make the product fall into the feeding channel, realize the separation and feeding of good products and bad products, so as to achieve good synchronization, fast beat, less power, save a lot of air pipes and signal lines, simple and convenient control, beautiful wiring, and low cost Purpose.

The invention provides a washing bracket. The washing bracket comprises a bracket body, wherein a reversible protective cover is integrally formed on the bracket body and flexibly connected with the bracket body. The invention further relates to a control panel component adopting the washing bracket and a washing machine. The washing bracket is simple to form and mount, burning accidents of the washing machine due to the fact that wiring terminals of a washing timer strike sparks can be avoided, and harnesses connected with electrical pieces such as the washing timer and the like are neat to route and attractive in appearance.

The invention relates to a checking / counting function switching device of an intelligent electric energy meter. The device comprises a vertical cabinet and two meter frames, wherein the two meter frames are provided with an electricity meter, a pair of an electrician source binding posts, a pair of electric energy meter loop binding posts, a pair of electron source binding posts and a switching device respectively; an electrician source and an electron source are arranged in the vertical cabinet; the switching device comprises an insulating bottom plate and a conductor; and the conductor comprises a left conductor, a middle conductor and a right conductor which are separated from one another. The device has the advantages of reasonable structural design, capability of switching different functions conveniently and low cost.

The invention discloses a novel electronic bar tacking machine, which is composed of a fixed cloth presser foot bar, a needle, a fixed cloth presser foot, a line throwing device, a line throwing device connecting rod, an electromagnet, a spring, a needle bar, a touch screen and the like. A permanent magnet synchronous servo motor is subjected to main shaft driving and connecting; the main shaft driving and connecting is buckled by a cross connector; a digital signal processor (DSP) and UC / 0S-II are control platforms; a stepper motor is driven on the X direction and Y direction; the Y-direction stepper motor drives a length sliding block by a gear to cause an L1 shaft to generate y-direction displacement; and the X-direction stepper motor is characterized in that an arc-shaped gear drives an L2 shaft and a width sliding block to cause the Y shaft to swing in the horizontal direction so as to generate X-direction displacement. A parking position is designed on the upper shaft of a machine head and is formed by dislocating and alternating a crank connected and driven by a front line picking bar and a needle bar to work, a tail line shearing cam and a parking wheel. The novel electronic bar tacking machine has the advantages of simple and scientific structure, few faults and high efficiency, and computer system program control completely replaces manpower.

The invention discloses a cable secondary wiring layered peeling arrangement method. The method comprises the steps of construction preparation, cable laying, cable head manufacturing, cable signboardfixing, core wire arrangement and cable checking and wiring. According to the invention, more cables can be arranged in a narrow space, screen front wiring in a traditional mode is changed into screen back wiring, and the speed, the quality and the process of secondary wiring are improved; the back surface of a screen is attractive in routing process, reasonable in routing and elegant; by means of the method, the construction period is shortened, cost is reduced, and the method has good social and economic benefits and is easy to popularize.

The invention discloses an adjustable display mounting support. The adjustable display mounting support comprises a first framework (100) which is formed by a pair of first crossbeams (110) and a pair of first vertical beams (120). The first vertical beams (120) are internally provided with vertical U-shaped grooves (121), the upper end and the lower end of each U-shaped groove (121) are provided with fixing devices (130), a vertical adjusting device (140) is arranged between every two corresponding fixing devices (130), and the upper end and the lower end of each vertical beam (120) are provided with hook devices (150). The adjustable display mounting support further comprises a second framework (200) which is formed by a pair of second crossbeams (210) and a pair of second vertical beams (220), and main crossbeams (230) matched with the hook devices (150) are arranged on the second framework (200). The adjustable display mounting support is high in mounting stability and easy to mount and demount, and multi-direction display position adjustment can be realized.

The present invention discloses a prefabricated formed butterfly introduction optical cable, a manufacture method thereof and a wiring method thereof. According to the invention, the characteristics of inner optical fiber cords and self-supporting butterfly optical cables are combined, and the prefabricated formed butterfly introduction optical cables are employed at the outdoor introduction, wherein the butterfly introduction optical cables are convenient to cross and connect wires under construction because of the structure characteristic of the butterfly introduction optical cables so that the optical fibers in the cables are protected very well. After introducing into the indoor space, wiring units are converted to micro-cable units of 900 [mu]m so as to greatly reduce the wiring areas, and the places where the wiring can be not performed before may be wired. Compared with the conventional butterfly introduction optical cables, the rate of finished products and the production efficiency of the prefabricated formed butterfly introduction optical cables with the structure are greatly improved, and the micro-cable units of 900 [mu]m after decorticating may be manufactured as the conventional optical fiber connector, therefore avoiding a series of unbridgeable problems in the production process of the conventional prefabricated formed butterfly introduction optical cables.

The invention discloses a multi-interface electrical terminal for preventing wire breakage, comprising an insulating base and a guide rail, wherein the insulating base is located above the guide rail,the upper end of the insulating base is fixedly mounted with an insulating partition, a connecting member is fixedly mounted on the upper end within the insulating partition close to the insulating base, a supporting frame is fixedly mounted inside the insulating partition, a wire clamp is disposed inside the supporting frame, the upper end of the wire clamp is fixedly mounted with a screw near the lower end of the supporting frame, the surface of the screw is sleeved with a nut, the connecting member is composed of the supporting frame, the wire clamp, the screw and the nut, the inner portion of the wire clamp is fixedly mounted with a conductive piece near the middle of the supporting frame, and the bottom end of the guide rail is uniformly provided with positioning holes. The multi-interface electrical terminal for preventing wire breakage, combined with the guide rail, may freely arrange the number of interfaces of the terminal, which realizes the multi-interface connecting wire,and may effectively prevent the wire from being broken by the special internal structure design and external design.

The invention relates to a voice module wiring structure and an air conditioner. The voice module wiring structure comprises a middle frame, and the middle frame comprises a first face and a second face perpendicular to the first face. A voice driving box and a loudspeaker are arranged on the first face, and a microphone is arranged on the second face. A wiring groove is formed in the middle frame, one ends of at least two bundles of wires are connected with the voice driving box, and the other ends of the wires pass through the wiring groove. One bundle of wires is connected with the loudspeaker, and the other bundle of wires is connected with the microphone. According to the voice module wiring structure and the air conditioner, voice driving modules are arranged on the middle frame; onone hand, the voice modules are convenient to mount and demount; on the other hand, the voice modules are adjacent to each other, the connecting distance of a control wire is shortened, and connectingof the control wire is simplified; and in addition, the wiring groove is formed in the middle frame, wiring is orderly, the wires and other components are prevented from being wound, and damage to the wires is reduced.

The invention discloses a case uncovering detection system. The system comprises a case as well as a mainboard, a key destroying switch, a storage module and a power supply which are arranged in the case, wherein a control system for controlling the working state of the storage module is arranged on the mainboard, the case comprises a case body with an opening in the top and an upper cover detachably arranged at the opening, the mainboard is paved and fixed on the bottom surface of the case body, the key destroying switch is welded on the mainboard, a ball is butted against the bottom surface of the upper cover, and a leaf spring is pressed on a shift switch. The invention further provides an implementing method of the case uncovering detection system. Case information safety can be ensured, interior wiring of the case is reduced, and the mounting process of an information protecting structure is simplified.

The invention provides an LED power source production line which comprises an unqualified product removal mechanism, an auxiliary turning-around mechanism, an inner frame, carrier rollers and an outerframe. The inner frame is connected with the outer frame through the carrier rollers. The unqualified product removal mechanism comprises a division plate, a square groove, an indication lamp, a bearing plate and springs. The auxiliary turning-around mechanism comprises a motor, connecting rods, a disc, a rotary shaft, a stirring plate and a moving plate. Compared with the prior art, the LED power source production line has the following beneficial effects that the aim of removing LED power sources with weight unqualified is achieved, and the aim of assisting LED power sources in stably passing through the turning of the production line can be achieved.

The invention relates to an electrical cabinet applicable to a cab. The electrical cabinet comprises a cuboid outer frame, and the cuboid outer frame is formed by combining a rectangular top frame, a rectangular bottom frame and a plurality of parallel stand columns. Waist beams perpendicular to the stand columns are arranged in the middles of two side frames of the outer frame respectively, and an internal secondary frame is fixed to the upper portion of the outer frame. An internal panel is fixed to the lower portion of the internal secondary frame, and a plurality of first wiring ducts perpendicular to the stand columns of the outer frame body are fixed to the internal panel. A plurality of second wiring ducts parallel with or perpendicular to the stand columns of the outer frame body are arranged in the side frames of the outer frame. The first wiring ducts are communicated with the second wiring ducts perpendicular to the stand columns of the outer frame body. Electrical products in the electrical cabinet are distributed evenly in order, the wiring directions are clear and orderly, and the electrical cabinet of the cab is convenient to maintain in the later stage due to the design.

The invention discloses a communication DC distribution cable which is composed of a first copper conductor 1, a first insulator 2, a second copper conductor 4, a second insulator 5 and an anti-flaming sheath 3, cross sections of the first copper conductor 1 and the second copper conductor 4 are of the same rectangle structures, the first insulator 2 and the second insulator 5 are arranged in parallel, cross section external profiles of the first insulator 2 and the second insulator 5 are square, the cross section external profile of the anti-flaming sheath 3 is square. The invention adopting this structure has better low inductance characteristic, reduces electric energy loss, ensures good signal transmission performance, is suitable for building construction characteristic of the communication machine room, is easy to mount and lay, the signal transmission is faster, and the wiring of the communication machine room is more convenient and beautiful.

The invention discloses a pushing and lifting mechanism of an automatic mahjong machine; a driving mechanism of the pushing and lifting mechanism of the automatic mahjong machine includes a vertical tile lifting mechanism which can do vertical movement up and down and a driven tile pushing mechanism which is driven by the vertical tile lifting mechanism. The work pattern of the pushing and lifting mechanism is improved, the descending movement of a tile lifting board and the tile pushing movement of a tile pushing board can sequentially finished in virtue of the descending movement of a slide block, and the reliability between the two kinds of movement is improved; compared with the prior art, a coordinating part similar to a peach-shaped wheel is omitted, so that the debugging difficult can be greatly reduced after the pushing and lifting mechanism is assembled. The simplification of the structure not only can save cost, but also can facilitate assembly; the pushing and lifting mechanism completely solves the using problems that the tile lifting board swings left and right and can not descend to the bottom, the tile pushing board does not push tiles according to set time, etc. The pushing and lifting mechanism has reliable running and low fault rate.

The invention discloses a spring operating mechanism of a circuit breaker. The mechanism comprises a switching-on assembly, an switching-off assembly, a transmission assembly and an output assembly which are connected in a shell frame; the output assembly comprises an output shaft and an output crank arm connected to the output shaft. The switching-on assembly comprises a switching-on half shaft and an energy storage maintaining latch connected to the switching-on half shaft. The transmission assembly comprises an energy storage shaft, the energy storage shaft is connected with a closing spring, and the energy storage shaft rotates to compress the closing spring to realize energy storage; the energy storage shaft rotates to drive a first roller on a cam on the energy storage shaft to be incontact connection with the energy storage maintaining latch to achieve energy storage maintaining; the switching-on spring is reset to realize switching-on; the switching-on spring resets to drive aswitching-on keeping latch on the energy storage shaft to rotate, and the switching-on keeping latch is in contact connection with a third roller on the output crank arm to realize switching-on keeping; the switching-off assembly is used for switching-on. According to the invention, part reuse is achieved, the total number of parts is greatly reduced, and the beneficial effects of being simple instructure and high in reliability are achieved.

The invention discloses a multifunctional power board. A two-pin socket, a three-pin socket, a network cable jack and a telephone line jack are arranged on a power board body. Plugs comprise a power plug which corresponds to the two-pin socket and the three-pin socket, a network cable plug which corresponds to the network cable jack and a telephone line plug which corresponds to the telephone jack. The power plug is communicated with the two-pin socket and the three-pin socket with a power line; the network cable plug and the network cable jack are communicated with a network a cable; the telephone line plug and the telephone line jack are communicated with a telephone line; the power line, the network cable and the telephone line are coated by an outer coating to form a main lead. The network cable for a computer, the and telephone line and the power line for electronic equipment are connected into the power board, and the main lead of the multifunctional power board comprises the power line, a signal line, the telephone line and the network cable, therefore, the invention has the advantages of simple and attractive wiring, simple structure and easy actualization.

The invention discloses an indoor unit of an air conditioner and the air conditioner provided with same. The indoor unit of the air conditioner comprises an indoor heat exchanging module, an air processing module and a display module; the indoor heat exchanging module comprises a first shell, a first fan and a first electric control unit, wherein the first electric control unit and the first fan are connected to control the operation state of the first fan; the air processing module comprises a second shell, a second electric control unit, an air processing fan and an air processing component,wherein the first electric control unit is connected with the air processing fan to control the operation state of the air processing fan; the display module comprises a third shell and a display electric control unit; and at least two of the first electric control unit, the second electric control unit and the display electric control unit are electrically connected. According to the indoor unitof the air conditioner, the number of power supply connecting cables can be reduced, the manufacturing cost can be reduced, meanwhile, the cabling is attractive, the occupied space of the connectingcables is reduced, and labor of assembling and maintaining personnel is reduced.

The invention discloses a power distribution box for industrial use, which comprises a distribution box body, the top of the distribution box body is provided with a rain-proof platform, the inner cavity of the distribution box body is equidistantly installed with components, and the bottom of the components is provided with The wiring trough, the left side of the wiring trough is connected with the main wiring trough, the inner cavity of the distribution box body is provided with a wiring hole, the two sides of the wiring hole are symmetrically provided with positioning grooves, and the wiring hole is installed with a wire passing device , the wire-passing device includes a wire-passing barrel, a lock nut, a positioning protrusion and a limiting plate. The present invention makes the wiring of the wire beautiful through the setting of the wiring groove and the general wiring groove, and the positioning protrusion slides in the inside of the positioning groove. The wire passing device is locked on the rear wall of the distribution box body through the lock nut and the limit plate, so that the installation of the wire passing device is stable.

The invention relates to an electric energy meter standard wiring device and a using method of the electric energy meter standard wiring device. The device comprises a main plate and an auxiliary plate connected with the main plate through a sliding groove. The main plate and the auxiliary plate are each provided with ten supporting point holes formed three layers in a staggered mode, wherein the first layer is provided with three supporting point holes, the second layer is provided with three supporting point holes, and the third layer is provided with four supporting point holes. An open groove is formed in one side of the auxiliary plate. In the using process, a wiring box is clamped inside the open groove of the auxiliary plate, and the relative positions of the auxiliary plate and the main plate are adjusted through the sliding groove so that the supporting point holes in the main plate and the auxiliary plate can perpendicularly correspond to three wire outlet openings and null wire openings of each of a U phase, a V phase and a W phase of an electric energy meter and wire outlet openings and null wire openings of each of a U phase, a V phase and a W phase of the wiring box. A screwdriver or other tools is / are inserted into the supporting point holes for bending wires so that the electric energy meter can be connected with the wiring box. After auxiliary wiring by the utilization of the device, wiring is neat and attractive, the construction technology is regulated, meanwhile, the labor intensity of workers can be effectively relieved, and working efficiency is improved.