58results about How to "Prevent sudden fall" patented technology

An electric power steering apparatus drives a motor to generate a steering assist force according to a steering torque and includes an output circuit for supplying the motor with electric power from at least one of a battery and an auxiliary power supply. The electric power steering apparatus has a control circuit which at or after detection of a breakdown of the battery, determines a length of time to the end of steering assist (decreasing time t1) based on the amount of energy stored in the auxiliary power supplies and which takes the determined length of time to perform output decreasing control to gradually decrease the upper limit of power supplied for the steering assist to practically zero according to a constant gradient. Thus is provided an electric power steering apparatus which is adapted to prevent a sudden fall of the steering assist force in the event of a battery breakdown while effectively utilizing the available stored energy.

The invention discloses a stable light-duty lifting device which comprises a lifting device of a jack device, an overload protection device arranged on the left side of the lifting device and an automatic inflating device arranged on the right side of the lifting device, wherein the lifting device comprises an outer column body of the lifting device, a bottom table is arranged at the lower end ofthe outer column body of the lifting device, a first compression slot is formed in the bottom table, a first limiting lug is arranged at the upper end of the outer column body of the lifting device, an elastic backing ring is arranged at the lower end of the first limiting lug, a lifting column is arranged in the outer column body of the lifting device, a second limiting lug is arranged at the lower end of the lifting column, an air slot is formed between the outer column body of the lifting device and the lifting column, a top pillar is arranged in the lifting column, a top table is arrangedat the upper end of the top pillar, and the upper end of the top pillar is fixedly connected to and matched with the lower end surface of the top pillar.

The invention discloses a supporting device facilitating automobile tire dismounting. The supporting device comprises a base, a first motor, an adjusting cylinder and clamping plates, wherein four universal wheels are arranged on the lower side of the base, three sliding grooves are formed in the vertical part of the base, a second transmission rod is slidably connected in each sliding groove, theright end of each second transmission rod is fixedly connected with a lead screw, the right clamping plates are fixedly connected with fixing bases, the lead screws are in threaded connection with moving clamping plates, the moving clamping plates are in sliding connection with supporting plates, the lead screws and the second transmission rods are rotationally connected with the fixing bases through rolling bearings, and the right parts of the fixing bases are connected with the adjusting cylinder through two swing rods. According to the supporting device facilitating automobile tire dismounting, the swing rods are pushed to swing by telescopic rods in the adjusting cylinder, so that the supporting plates are driven to clamp and support wheels, wrench heads are driven to be inserted intothe bolts of the wheels while the moving clamping plates move so as to fix and support the wheels, the second motor is driven to disassemble the bolts on the wheel tires, and the efficiency is improved.

The invention relates to a rapid-clamping rocking handle and a lifting device with the rapid-clamping rocking handle. The rapid-clamping rocking handle for lifting comprises a force transmission handle and an inverse-rotation-prevention end cover, wherein the force transmission handle is used for driving a lifting input shaft to rotate, and the inverse-rotation-prevention end cover is fixedly connected with a lifting device body. An inverse-rotation-prevention pin is arranged on the force transmission handle and moves in the direction perpendicular to the rotation axis of the force transmission handle in a guiding mode, a stopping groove is formed in the inverse-rotation-prevention end cover and used for inserting the inverse-rotation-prevention pin in the radial direction of the inverse-rotation-prevention end cover so that the stopping groove can be matched with the inverse-rotation-prevention pin in the circumferential direction in a stopping mode, and the inverse-rotation-prevention pin has a locking position and an unlocking position in the guiding moving travel of the inverse-rotation-prevention pin, wherein the locking position is inserted into the stopping groove, and the unlocking position withdraws from the stopping groove. The force transmission handle is provided with an elastic resetting mechanism used for exerting acting force on the inverse-rotation-prevention pin to move the inverse-rotation-prevention pin toward the unlocking position, and is further provided with an unlocking device connected with the inverse-rotation-prevention pin in a transmission mode. The unlocking device is provided with an operation position and a releasing position, wherein the operation position corresponds to the unlocking position of the inverse-rotation-prevention pin, and the releasing position corresponds to the locking position of the inverse-rotation-prevention pin. The rocking handle can conveniently achieve locking, and it is avoided that because the rocking handle inversely rotates, heavy objects suddenly fall off.

The invention relates to a deep foundation excavation system and a technological method thereof in the technical field of deep foundation construction. The system part comprises the following parts ofa conveyor tower erected in deep foundation; a rock crusher arranged at the feeding position at the bottom end of the conveyor tower; unmanned control-based unmanned excavator and unmanned mining card that are both located in deep foundation; an earth-rock separator set at the upper end of the conveyor tower; a conveyor belt assembly; an unmanned earth-rock truck located directly below the lowestend of the conveyor belt assembly when receiving material and located on the ground outside the pit; and a self-locking lifting mechanism, the upper end of which is adjustably connected to the conveyor belt assembly. During the conveying, the earth and rock are transported to the earth-rock separator in the direction by using the conveyor tower, transported to the conveyor belt assembly then, andtransported to the earth-rock truck through the conveyor belt assembly, thereby enabling the entire construction process to achieve unmanned operation and achieving the effect of efficient transportation.

The invention discloses a pavilion type lifting garage, comprising a ground pit, wherein a lifting device and a vehicle storing frame are arranged in the ground pit, a top cover is arranged on the top of the vehicle storing frame, a safety hook is arranged in the ground pit, an overlapping hook is arranged on the lifting device at a position corresponding to an extending position of the safety hook, a waterproof platform is arranged around the ground pit, ramp ways are arranged in front and at back of the waterproof platform, the top is parallel and level to the upper surface of the waterproof platform when the vehicle storing frame completely falls down, four stand columns are arranged on the top cover, a slideway is arranged at the inner side face of each stand column, a rectangular pavilion top is arranged on the stand columns, a roller shutter driving device is arranged in the pavilion top, the staggered roller shutters are respectively and correspondingly arranged between stand columns in the pavilion top, and the roller shutters are driven by the roller shutter driving device and move up and down synchronously along the slideways. The pavilion type lifting garage has the advantages of simple structure, low cost, low energy consumption, safety in use, good waterproof effect, no need of drainage, and convenience for operation, and can be used for reasonably utilizing an aboveground space at the garage position, increasing the number of the garage and playing a role in beautifying ambient landscape.

The invention discloses a yarn bobbin mechanism for textile machinery, which comprises a base, fixed columns are fixedly connected to both sides of the top of the base, and a housing is fixedly connected to the top of the fixed column. The present invention is provided with a base, a fixed column, a shell, a pull ring, a movable rod, a first spring, a movable plate, a stabilizing mechanism, a limit plate, a connecting rod, a block, a bobbin body, a protective plate, a card slot, and a movable sleeve. , knobs, threaded rods, threaded holes, threaded grooves, fixed plates, grooves and supporting mechanisms are used in conjunction to solve the problem that the existing yarn bobbin mechanism for textile machinery is not easy to disassemble, requires a lot of manpower and material resources, and increases the labor intensity of workers , affects the use and use, and the protection effect is poor during the disassembly process, which may easily cause the bobbin to slip, cause damage to the textile, and cause inconvenience to the user. The advantage of good effect is worth promoting.

The invention discloses a flexible bionic whole-vertebra intelligent physiotherapy machine which comprises a base, a supporting mechanism, a lifting mechanism, a bed body and a swinging mechanism, wherein the bed body comprises joint brackets, joint plates and push rods; the joint brackets are mounted on a central shaft in a sleeving manner and connected in sequence; the joint plates and the push rods are fixed on the joint brackets; the swinging mechanism comprises a swinging head, an ankle fixing plate, a rocker arm, a gear, a sector gear and a stepping motor; the swinging head is mounted on a support shaft; the ankle fixing plate is mounted above the swinging head; the gear, the sector gear and the stepping motor are fixed on the swinging head; the rocker arm is mounted in the gear in a sleeving manner. The physiotherapy machine can realize two treatment modes, namely the intelligent type swinging and the intelligent type shaking, and the handstand natural gravity drawing is combined, so that the curative effect can be achieved jointly; a sensor can be used for monitoring the movement situation of a patient at any time to adjust the speed and amplitude of the swinging head, so that the intelligent control treatment can be implemented, the treatment process is safe and reliable, and the curative effect is excellent.