36results about How to "Get out of trouble" patented technology

Disclosed is an automatic rescue apparatus for an elevator. The apparatus comprises a base (A), a motor (11), an input shaft (111), a linkage gear (122), a worm gear (12), a worm screw (121), a reduction gear set (13), a bobbin line disk (14), and a steel cable (2). The motor (11) is connected to the input shaft (111). The input shaft (111) is provided with a thread segment (112). The input shaft (111) is meshed with the worm gear (12) by means of the thread segment (112). The worm gear (12) is connected to the worm screw (121). An outer end of the worm screw (121) is provided with the linkage gear (122). The linkage gear (122) is meshed with a bull gear (131) of the reduction gear set (13). One end of the bobbin line disk (14) is provided with a gear (141). The gear (141) is meshed with a pinion gear (132) of the reduction gear set (13). The steel cable (2) is wound on the bobbin line disk (14). The apparatus has a scientific and proper design, is convenient and practical, and can enable an elevator car to be stably lowered to the position of an elevator door of a nearest floor when a power failure or fault occurs, thereby allowing a person taking the elevator to successfully escape.

The invention discloses a telescopic main drive sealing device of a larger-diameter shield machine, wherein a sealing clamp ring is fixedly arranged at the lower part of a shield body, an air bag seal is arranged at the lower part of the sealing clamp ring, a sealing caulking ring is fixed on the sealing clamp ring, lip seals are nested at the lower part of the sealing caulking ring, the lip seals are closely contacted with a driving box, and the lip seals are positioned in front of the air bag seal; a sealing pressure ring is fixed at the front side of the sealing clamp ring, a snap ring is fixed at the upper part of the sealing pressure ring, the upper part of the snap ring is in clamp connection with the lower part of the shield body, a slag removal plate is fixed at the lower part of the sealing pressure ring by a pressing plate, and the lower part of the slag removal plate is arranged on the driving box. The upper part of the telescopic main drive sealing device is clamped at the lower part of the shield body, and the residue soil or mud in a soil chamber can be sealed in a main drive stretching process by means of enabling the lip seals or air bag seal to be connected with the driving box; furthermore, a cutter is more conveniently replaced under a condition of atmospheric pressure or belt pressure, so that a cutter head of the shield machine is bailed out in case of emergency, and the shield machine is further enabled to carry out shield construction smoothly.

The invention discloses a method for getting rid of stuck machines and reinforcing and improving geological conditions in bad geological sections of TBM construction tunnels, aiming to solve the technical problems in the prior art that poor geological conditions cause difficult excavation and easy stuck machines in open TBM construction. The invention carries out small guide tunnel construction from above the TBM shield, performs long-distance horizontal reinforcement on the unfavorable geology in front of the tunnel face, and cleans up slag accumulation around the cutter head and shield body. The method of the present invention can effectively reduce the risk of getting stuck and get out of trouble, and can realize the horizontal advance reinforcement of the surrounding rock in front of the TBM. At the same time, the shield is released using the construction space of the pipe shed, so that the TBM gets out of trouble after the machine gets stuck; the treatment period is short, and the cost input is low. Construction safety; and broaden the application prospect of TBM construction method, make TBM still can continue to construct after adopting the related method of the present invention under the unfavorable geological tunnel environment, have promoted the further development of tunnel cause, have obtained good social benefit; The construction techniques and methods are all conventional methods, and the machines, tools and materials are used rationally, which saves resource input; at the same time, the poor geological pre-reinforcement using the small pilot tunnel method has less construction waste materials, and the environmental and energy-saving benefits are remarkable.

The invention relates to a stepless speed-regulating hydraulic drive system for a screw conveyor for super-large-diameter shield tunneling, which includes a fuel tank, a hydraulic pump group, a speed-regulating hydraulic circuit, a reducer, a hydraulic motor group, and a control unit. There are oil separation and oil collection valve modules, flushing control valve modules, control pumps, and sensor modules. The hydraulic pump group includes hydraulic pump 1 and hydraulic pump 2. Both hydraulic pump 1 and hydraulic pump 2 are equipped with displacement adjustment mechanisms , the hydraulic motor group includes hydraulic motor 1 and hydraulic motor 2 that operate synchronously, and hydraulic motor 1 and hydraulic motor 2 are both provided with an output variable adjustment mechanism, and the displacement adjustment mechanism and output variable adjustment mechanism are all communicated with the control unit . The present invention can satisfy the hydraulic drive system with high torque and high rotational speed, realize the functions of variable speed adjustment, overload protection, and bidirectional rotation, is safe and reliable, and effectively guarantees the stability of the operation performance of the screw conveyor.

The invention relates to an active shield tunneling machine telescopic oscillating system, which comprisesa cutterhead, a cutterhead driving module, a ball bearing, an anti-kink system, a telescopic oscillating subsystem, and acapstan. The tail end of the cutterhead is connected to the inside of the cutterhead driving module; the cutterhead driving module is of a movable structure; the inner ring of the ball bearing is fixed to the cutterhead driving module, and the outer ring is fixedly connected with a shield body; one ends of four torque oil cylinders in the anti-kink system are fixed toa corner of the cutterhead driving module, the other endsare fixed to the shield body, an internal hydraulic control component is placed at the rear of the shield body and connected with the torque oil cylinders through hydraulic pipelines; the telescopic oscillating subsystem comprises six telescopic oscillating oil cylinders which are fixed between the cutterhead driving module and the capstan, and the capstan is fixedly connected with the shield body. The active shield tunneling machine telescopic oscillating system is used for cutterhead tool change and shield body escape, and efficiency and safety of shield constructioncan be effectively improved.

The invention discloses an automobile trapping lifting apparatus which structurally comprises a bottom plate, a hinge, a hang rod, fixing rods, an arc-shaped plate, a first spring, a second spring, afront plate, convex strips, a first positioning pin, a support plate, a second positioning pin, a fixing plate, barrier strips and torsion springs. The bottom plate is arranged below the support plateand is parallel to the support plate, four lugs are arranged on two sides of the support plate, the center line of the support plate is used as the symmetric axis of the lugs, through holes are formed in the lugs, connecting blocks are arranged at two ends of a side of the front plate, via holes are formed in the connecting blocks, and concentric circles are formed by the through holes of the lugs and the via holes of the connecting blocks. The automobile trapping lifting apparatus has the advantages that the fixing plate clamped at the barrier strips can be repositioned, accordingly, the inclination of the front plate can be adjusted, and the automobile trapping lifting apparatus can be flexibly used; wheels can be pushed towards the front plate by the arc-shaped plate under the effectsof elastic force of first springs and second springs, accordingly, frictional force of the front plate and the wheels can be increased, the wheels can be quickly released from dilemmas when rotating,and good trapping lifting effects can be realized.

The invention provides a self-rescue system for a hydraulic elevator. The self-rescue system comprises a car call control unit, a main control unit, a hydraulic pump control unit and a direct-current (DC) power supply for supplying electricity to the self-rescue system for the hydraulic elevator, wherein, the car call control unit is connected with the main control unit through a cable; the car call control unit comprises a car call panel and a car call control main board; the car call panel is equipped with a self-rescue switch, and the self-rescue switch is connected with the car call control main board through a circuit; and the main control unit is connected with the hydraulic pump control unit through a circuit. The self-rescue system and method for the hydraulic elevator have the beneficial effects that passengers can get out of a car so as to achieve the self-rescue purpose by taking simple and easy measures, and the rescue cost is lowered.

The invention discloses an anti-hanging bottom fishing tackle, comprising a fishing rod, a figure-eight ring, a sub-line and a main line, and a hollow bait cage. One end of the main line is connected to the fishing rod, and the other end is connected to the figure-eight ring. One end of the bait cage; the front inner wall of the bait cage is provided with a partition, and the guide eye I that communicates with the front wall of the bait cage is formed, and the lower side of the partition is connected to the bait cage. There is also a built-in lead block between the inner walls of the bait cage; two partitions are symmetrically arranged on the inner wall of the rear end of the bait cage, and a bait holder that can move back and forth is arranged between the partition and the partition. The lure holder and the partition are connected by a spring. The invention cleverly arranges the fish hook in the bait cage and adopts the design of double hooks inside, so the fish hook is not easy to hang on the bottom. Succeeded in getting out of trouble.

The present invention proposes a popping sound detection method, comprising: for a sound source signal, obtaining a plurality of audio frames formed in time order in a time domain; sampling each audio frame; A sampling amplitude value of the sampling result is compared with a preset sampling amplitude value; according to the comparison result of each audio frame, it is confirmed that each audio frame belongs to a white noise part or a pop-like part; Adjacent white noise parts, adjacent popping-like parts and adjacent white noise parts appear in chronological order to confirm whether the sound source signal has popping sounds. When an audio frame and at least one adjacent audio frame are all white noise parts , then its corresponding audio frame belongs to adjacent white noise parts, and when an audio frame and at least one adjacent audio frame are both pop-like parts, then its corresponding audio frame belongs to adjacent pop-like parts.

The invention provides a vehicle trapping extricating system and a vehicle. The vehicle trapping extricating system comprises a pressure outputting device, valves, and first control devices, wherein the pressure outputting device is connected with a vehicle brake pedal and is used for outputting pressure according to a brake of each braking-direction wheel of the brake pedal to enable the brake to work; the pressure outputting device is connected with the brake of each wheel of the vehicle by a braking pipeline; the valves are arranged on the braking pipelines; the first control devices are used for controlling the valves to be in a switching on or off state, and when at least one wheel is trapped, the first control devices control the valve on the braking pipeline corresponding to the trapped wheel to be switched on, and when the pedal is started, the trapped wheel obtains power; and the other first control devices are used for controlling the valves on the braking pipelines corresponding to the other wheels, except for the trapped wheel, to be switched off, the corresponding braking pipelines are cut off by the valves, and when the pedal is started, the other wheels, except for the trapped wheel, have no power. The vehicle trapping extricating system provided by the invention is good in trapping extricating effect and low in production cost.