116results about How to "Control braking" patented technology

The invention relates to an operating valve and a railway vehicle braking system, and belongs to the technical field of railway vehicle braking. The operating valve comprises a valve body, a valve rod assembly, a restoration assembly and a control assembly. The valve body is provided with a main air cavity, an output cavity and a precontrol cavity, and the restoration assembly is used for driving the valve rod assembly to close a first valve port; the control assembly is located in the main air cavity and communicated with the external air, the control assembly can drive a valve rod to move in the length direction of the valve rod, and the control assembly and the valve rod are used in cooperation for achieving communication or disconnection between the main air cavity and the output cavity, and between the output cavity and the external air. The operating valve is reasonable in structural design, the valve port sealing effect is good, a planar diaphragm plate is durable, pressure precontrol is precise, the service life of the product is long, and the demand of a user is met. According to the railway vehicle braking system with the operating valve, a braking assembly can be precisely controlled, so that precise braking of a railway vehicle is achieved, and safe running of the railway vehicle is guaranteed.

The invention provides an orthopedic nursing walking aid. The orthopedic nursing walking aid comprises a first hydraulic telescoping cylinder, a first fixing rod, a second fixing rod, a second hydraulic telescoping cylinder, bells, inner cavities, slide rails and sliders. First rollers are mounted on the lower end face of the first fixing rod, second rollers are mounted on the lower end face of the second fixing rod, the first hydraulic telescoping cylinder is mounted on the upper end face of the first fixing rod, the second hydraulic telescoping cylinder is mounted on the upper end face of the second fixing rod, the right end face of a connection rod is provided with the inner cavities, and the bells are arranged on the inner left sides of the inner cavities respectively, so that the problem that an original orthopedic nursing walking aid is lack of a promoting structure is solved. The slide rails are symmetrically mounted on front and rear sides of the lower end face of an armrest board, and the sliders are fixed to upper end faces of the first hydraulic telescoping cylinder and the second hydraulic telescoping cylinder through bolts, so that a patient can conveniently adjust an angle in use of the armrest board. Therefore, the orthopedic nursing walking aid has advantages of reasonable structure, convenience in assembly and mounting, wide application range and high reliability.

The invention provides an automobile accelerator pedal assembly preventing mistaken pressing and belongs to the technical field of automobile parts. The upper end of an auxiliary rod is hinged with afoundation column through a sleeve and the lower end of the auxiliary rod is hinged with a linkage mechanism through a second shaft pin; a linkage part is arranged at the middle of the auxiliary rod;one end of the linkage part is fixed to the inner side of the auxiliary rod and a clamping groove at the other end of the linkage part is matched with a brake rod; a base shaft equipped with a first roller is longitudinally arranged at the bottom of a base of an accelerator pedal; the linkage mechanism is arranged at the front end of the plane of the base; a linkage mechanism bracket comprises twosymmetrical vertical side plates provided with through grooves; the bottom of the linkage mechanism bracket is fixed to the base; a second roller is arranged at the middle of the second shaft pin; both ends of the second shaft pin are matched with the through grooves; the second shaft pin runs through the through grooves and is hinged with the auxiliary rod; a displacement sensor is arranged at the middle of the back of the accelerator pedal; a guide rod seat is arranged at the upper part of the back of the accelerator pedal; one end of a guide rod is matched with the guide rod seat and the other end of the guide rod is provided with a guide wheel matched with a groove channel; and the side wall, on the right side of the accelerator pedal, of the automobile is provided with a position-limiting mechanism. The automobile accelerator pedal assembly preventing the mistaken pressing is mainly used for automobile active safety.

The invention discloses a building with multifunctional rope releasing equipment. The multifunctional rope releasing equipment is arranged on a roof of the building and comprises an electric transmission system or a hydraulic transmission system or a pneumatic transmission system, winding drums or rotary shafts, slow descent devices and pulling ropes. A rotation shaft of a motor of the electric transmission system or the hydraulic transmission system or the pneumatic transmission system can drive the winding drums or rotary shafts to rotate, circular rings sleeve the winding drums or rotary shafts, stopping faces are arranged on the circular rings, and stopping pieces are arranged on the winding drums or rotary shafts. At least one circular ring is connected with one ends of the pulling ropes, and at least one circular ring is provided with the slow descent devices. After extending out of the circular rings, the pulling ropes wind the winding drums or rotary shafts, slow descent ropesextending out of the slow descent devices wind the winding drums or rotary shafts, and a cable connected with an electromotor extends downwards to the lower portion or exterior of the building and isconnected with a power supply through a main contact of a contactor.

The invention discloses multifunctional rope unwinding equipment with a rescue function. The multifunctional rope unwinding equipment comprises an electric transmission system or a hydraulic transmission system or a pneumatic transmission system, an electromotor, a reel or rotary shaft, and a pull rope, wherein a rotating shaft of a motor of the electric transmission system or the hydraulic transmission system or the pneumatic transmission system is connected with the reel or rotary shaft through a transmission mechanism to drive the reel or rotary shaft to rotate; the reel or rotary shaft issleeved with a circular ring, wherein the circular ring can rotate around the reel or rotary shaft; the circular ring is provided with a blocking surface, and the reel or rotary shaft is provided witha blocking piece; one end of the pull rope is connected with the circular ring, wherein the pull rope extend out of the circular ring, and is wound around the reel or rotary shaft, and further extendout of the reel or rotary shaft; and a cable connected with the electromotor extends outwards and is connected with a power supply through an electrical component capable of turning on or off the power supply. By using above-described electrical component, the electromotor is powered on and then carries out forward rotation or reverse rotation.

The invention discloses a building with multifunctional rope releasing equipment. The building is characterized in that the multifunctional rope releasing equipment is arranged on the roof of the building; the multifunctional rope releasing equipment comprises an power transmission system or a hydraulic transmission system or a pneumatic transmission system, wherein a rotating shaft of a motor ofthe power transmission system or the hydraulic transmission system or the pneumatic transmission system can drive the winding drum to rotate; a rotating ring body is connected to the winding drum; therotating ring body can only rotate in one direction, and is locked and cannot rotate in the other direction; a digging rope is connected to the rotating ring body; the digging rope extends out of therotating ring body, then is wound around the winding drum and extends out of the winding drum; and a cable connected with an electromotor extends outwards and is connected with a power supply throughan electrical control system on the upper portion of the above building provided with the multifunctional rope releasing equipment.

The invention provides multifunctional rope releasing equipment with a rescue function. The multifunctional rope releasing equipment comprises a power transmission system or a hydraulic transmission system or a pneumatic transmission system, winding drums or rotating shafts, and a descent control device, wherein rotary shafts of a motor of the power transmission system or the hydraulic transmission system or the pneumatic transmission system can drive the winding drums or the rotating shafts to rotate; circular rings are arranged on the winding drums or the rotating shafts in a sleeving mode,and the circular rings can rotate around the winding drums or the rotating shafts; blocking surfaces are arranged on the circular rings, and blocking pieces are arranged on the winding drums or the rotating shafts; the descent control device is arranged on the corresponding circular ring, and descent control ropes of the descent control device extend out of the descent control device and are woundaround the winding drums or the rotating shafts; and a cable connected with the motor is connected with a power supply through a main contact of a contactor, a coil of the contactor is connected witha PLC and the power supply to form a loop, and a button or a touch screen connected with the PLC can control the main contact of the contactor to be closed and enable the motor to rotate forward or reversely.

The invention provides an automatic unhooking device and an automatic unhooking method. The automatic unhooking device comprises: a mechanical hook head which is internally provided with a coupler knuckle plate capable of pivoting; a driving unit used for driving the coupler knuckle plate to rotate; and an uncoupling in-place signal detection unit used for detecting whether the coupler knuckle plate rotates to an uncoupling position or not and sending an uncoupling in-place signal when detecting that the coupler knuckle plate rotates to the uncoupling position. According to the automatic unhooking device and the automatic unhooking method, automatic unhooking and unhooking operations can be realized in a high-speed running state, so that two vehicles coupled with the device are separated,and the safety of test equipment and personnel is guaranteed.

The invention discloses a building with multifunctional rope releasing equipment. The multifunctional rope releasing equipment is arranged on a roof of the building and comprises an electric transmission system or a hydraulic transmission system or a pneumatic transmission system, rotating bodies, pulling ropes and descent control devices; rotating shafts of motors of the electric transmission system or the hydraulic transmission system or the pneumatic transmission system are connected with the rotating bodies, ratchet mechanisms are connected to the rotating bodies, the pulling ropes are connected to the rotating bodies, and the descent control devices are arranged on the rotating bodies; the pulling ropes and descent control ropes of the descent control devices extend out from the rotating bodies, are wound on the rotating bodies or winding drums or spindles and extend out from the rotating bodies or the winding drums or the spindles to be directly connected with weights or connected with the weights after penetrating through wire grooves formed in direction changing pulleys; and cables connected with the motors extend outwards and are connected with a power supply through maincontacts of contactors over the building with the multifunctional rope releasing equipment.

The invention discloses multifunctional rope reeling-off equipment with a rescue function. The multifunctional rope reeling-off equipment comprises a power transmission system or a hydraulic transmission system or a pneumatic transmission system, rotating bodies and pull ropes, wherein a rotating shaft of a motor of the power transmission system or the hydraulic transmission system or the pneumatic transmission system is connected with the rotating bodies; ratchet mechanisms are connected to the rotating bodies; the pull ropes are connected to the corresponding rotating bodies; the pull ropesextend out of the rotating ring bodies, then wind the rotating bodies or reels, extend out of the rotating bodies or the reels, are directly connected with heavy objects or penetrate through wiring ducts of angle pulleys and then are connected with the heavy objects; a cable connected with an electric motor is connected with a power supply through main contacts of contactors; and coils of the contactors are connected with PLC and the power supply to form circuits.

The invention discloses a building with multifunctional rope payoff equipment. The multifunctional rope payoff equipment is arranged on the roof of the building. The multifunctional rope payoff equipment comprises an electric transmission system or hydraulic transmission system or pneumatic transmission system, winding drums or rotary shafts, descent control devices and pull ropes. A rotating shaft of a motor of the electric transmission system or hydraulic transmission system or pneumatic transmission system can drive the winding drums or the rotary shafts to rotate. The winding drums or therotary shafts are sleeved with circular rings. One ends of the pull ropes are connected to the circular rings. The descent control devices are arranged on the circular rings. After stop faces on the circular rings are clamped by stop parts on the winding drums, the pull ropes extend out from the circular rings to be wound around the winding drums or the rotary shafts and then be connected with weights I. After the stop faces on the circular rings are clamped by the stop parts on the winding drums, slow descent ropes extending out from the descent control devices are wound around the winding drums or the rotary shafts and are connected with weights II.

The invention discloses a building with multifunctional rope releasing equipment. The multifunctional rope releasing equipment is arranged on a roof of the building. The multifunctional rope releasingequipment comprises an electric transmission system or a hydraulic transmission system or an air pressure transmission system, coiling blocks and descent control devices. A rotation shaft of a motorof the electric transmission system or the hydraulic transmission system or the air pressure transmission system can drive the coiling blocks to rotate. Each coiling block is sleeved with a circular ring, wherein the circular ring is provided with a stop face. The coiling blocks or the rotation shafts are provided with stop pieces. The descent control devices are arranged on the circular rings. Slow descent ropes of the descent control devices extend out of the descent control devices to be wound around the coiling blocks and then extend out of the coiling blocks. A cable connected with the motor extends outwards and is connected with a power source through a main contact of a contactor above the building provided with the multifunctional rope releasing equipment, wherein a coil of the contactor is connected with a PLC and the power source to form a loop.

The invention discloses multifunctional rope reeling-off equipment with a rescue function. The multifunctional rope reeling-off equipment comprises a power transmission system or a hydraulic transmission system or a pneumatic transmission system, reels or rotating shafts and a descent control device, wherein a rotating shaft of a motor of the power transmission system or the hydraulic transmissionsystem or the pneumatic transmission system can drive the reels or the rotating shafts to rotate through transmission mechanisms; rings sleeve the reels or the rotating shafts and can rotate around the reels or the rotating shafts; the descent control device is arranged on the rings; descent control ropes of the descent control device extend out of the descent control device, are wound around thereels or the rotating shafts and then extend out of the reels or the rotating shafts; a cable connected with an electric motor outward extends and is connected with a power supply through an electrical component which can connect or disconnect the power supply; by using the electrical component, the electric motor is allowed to connect the power supply and rotate forward or reversely; and the electric motor rotates forward or reversely to drive the descent control ropes to rotate and extend out of the reels or the rotating shafts and be hung and pulled on the descent control device.

The invention provides a building with a multifunctional rope release device. The multifunctional rope release device is arranged on the roof of the building and comprises an electric transmission system or a hydraulic transmission system or a pneumatic transmission system, rotation bodies and pull ropes. A rotating shaft of a motor of the electric transmission system or the hydraulic transmissionsystem or the pneumatic transmission system is directly connected with the rotation bodies or connected with the rotation bodies through transmission mechanisms. The rotation bodies mentioned above are connected with ratchet mechanisms. The pull ropes mentioned above are connected to the corresponding rotation body. The pull ropes mentioned above are wound on winding drums after extending out from the corresponding rotation body or are wound on the winding drums and extend out from the corresponding rotation body or the winding drums to be directly connected with heavy objects or be connectedwith the heavy objects after penetrating through line grooves of direction change pulleys. Cables connected with the electric motor extend downwards to the lower portion or the outer portion of the building and are connected with a power supply through electrical elements capable of turning on or turning off the power supply.

The invention provides multifunctional rope releasing equipment with a rescue function. The multifunctional rope releasing equipment comprises a power transmission system or a hydraulic transmission system or a pneumatic transmission system, rotating bodies, and pulling ropes, wherein rotary shafts of a motor of the power transmission system or the hydraulic transmission system or the pneumatic transmission system are directly connected with the rotating bodies or connected with the rotating bodies through a transmission mechanism; the rotating bodies are connected with ratchet mechanisms, thepulling ropes are connected to the rotating bodies, and the pulling ropes extend out of the rotating bodies and then are wound around the rotating bodies or wound around winding drums or winding shafts and extend out of the rotating bodies or the winding drums or the winding shafts; and a cable connected with the motor extends outwards and is connected with a power supply through an electrical component capable of switching on or off the power supply, and the electrical component is used to enable the motor to be connected with the power supply and rotate forward or reversely.

The invention relates to a multifunctional rope reel-out equipment with a rescue function. The multifunctional rope reel-out equipment comprises an electric transmission system or a hydraulic transmission system or a pneumatic transmission system, rotation bodies and pull ropes. A rotation shaft of a motor of the electric transmission system or the hydraulic transmission system or the pneumatic transmission system is directly connected with the rotation bodies or connected with the rotation bodies through a transmission mechanism, ratchet mechanisms are connected to the rotation bodies, the pull ropes are connected to the rotation bodies, extend out of the rotation bodies, then wind the rotation bodies or winding drums or winding shafts and extend out of the rotation bodies or the windingdrums or the winding shafts, and a cable connected with an electromotor extends outwards and is connected with a power supply through an electrical apparatus element which can be connected with or disconnected with the power supply. By means of the electrical apparatus element, the electromotor can be connected with the power supply and rotate forward or reversely.

The invention discloses a building with multifunctional rope reeling-off equipment. The multifunctional rope reeling-off equipment is arranged on the roof of the building and comprises a power transmission system or a hydraulic transmission system or a pneumatic transmission system, rotating bodies, pull ropes and a descent control device, wherein a rotating shaft of a motor of the power transmission system or the hydraulic transmission system or the pneumatic transmission system is directly connected with the rotating bodies or is connected with the rotating body through transmission mechanisms; ratchet mechanisms are connected to the rotating bodies; the pull ropes are connected to the corresponding rotating bodies; the descent control device is arranged on the rotating bodies; the pullropes and descent control ropes of the descent control device extend out of the rotating bodies, then are wound around the rotating bodies or reels, and extend out of the rotating bodies or the reels;and a cable connected with an electric motor is connected with a power supply above the building provided with the multifunctional rope reeling-off equipment through an electrical component which canconnect or disconnect the power supply.

The invention discloses multifunctional rope reeling-off equipment with a rescue function. The multifunctional rope reeling-off equipment comprises a power transmission system or a hydraulic transmission system or an pneumatic transmission system, reels or rating shafts and pull ropes, wherein a rotating shaft of a motor of the power transmission system or the hydraulic transmission system or thepneumatic transmission system is connected with the reels or the rotating shafts through transmission mechanisms and can drive the reels or the rotating shafts to rotate; rotating ring bodies are connected to reel shafts of the reels or the rotating shafts; the rotating ring bodies only can rotate in one direction and are locked in the other direction to limit the rotation; the pull ropes are connected to the corresponding rotating ring bodies; the pull ropes extend out of the rotating ring bodies, then wind the reels or the rotating shafts and extend out of the reels or the rotating shafts; acable connected with an electric motor downward extends to the lower part of a building or the outside, and is connected with a power supply through main contacts of contactors; and coils of the contactors are connected with PLC and the power supply to form circuits.

The invention discloses a building with multifunctional rope payoff equipment. The multifunctional rope payoff equipment is arranged on the roof of the building. The multifunctional rope payoff equipment comprises an electric transmission system or hydraulic transmission system or pneumatic transmission system, winding drums and pull ropes. A rotating shaft of a motor of the electric transmissionsystem or hydraulic transmission system or pneumatic transmission system is directly connected with the winding drums or is connected with the winding drums through a transmission mechanism, and the winding drums can be driven to rotate. Rotating rings are connected to winding drum shafts of the winding drums. The rotating rings can rotate in only one direction and are locked and cannot rotate inanother direction. The pull ropes are connected to the rotating rings. After extending out from the rotating rings, the pull ropes are wound around the winding drums and extend from the winding drumsto be directly connected with weights or be connected with the weights after penetrating through wire troughs of direction-change pulleys.

The invention discloses multifunctional rope releasing equipment with the rescue function. The multifunctional rope releasing equipment comprises an electric transmission system or a hydraulic transmission system or an air pressure transmission system, a winding drum or a rotating shaft, a pull rope, the rotating shaft of the motor of the electric transmission system or the hydraulic transmissionsystem or the pneumatic transmission system can drive the winding drum or the rotating shaft to rotate, the rotating ring body can only rotate in one direction and cannot rotate in the other direction, the pulling rope is connected to the rotating ring body, the pulling rope extends out of the rotating ring body and then is wound on the winding drum or the rotating shaft and extends out of the winding drum or the rotating shaft, and motor forward rotation or reverse rotation using electrical components.