30results about How to "Easy to get out of trouble" patented technology

The invention discloses a novel trolley capable of moving forwards in a desert. The novel trolley comprises a trolley body, wherein a connecting rod is arranged on the trolley body; a supporting seat is arranged at the middle point of the connecting rod; the connecting rod is hinged with the supporting seat; the left end and the right end of the trolley body are symmetrically provided with a motor and a spiral shaft; the spiral shafts are connected with output shafts of the motors by transmission devices; connecting seats are arranged at the two ends of the spiral shafts; the top ends of the connecting seats, close to the motors, are provided with first supporting rods; the connecting seats are hinged with the first supporting rods; the top ends of the connecting seats, far away from the motors, are provided with second supporting rods; the trolley body is provided with a first sliding groove; two fixed seats are symmetrically arranged at the front end of the trolley body; a movable rod is arranged between the two fixed seats; a steering engine is arranged on the trolley body and is provided with a gear; and a rack is arranged on the movable rod. The novel trolley disclosed by the invention has the beneficial effects that the spiral shafts are used for replacing tires, so that the friction with the ground is increased, the ground gripping force is stronger, and the trolley is not easy to trap in looser sandy soil.

The invention relates to the field of water surface garbage salvaging, in particular to a special anti-collision structure for an unmanned ship for water surface garbage salvaging and a using method thereof. The special anti-collision structure comprises a ship body. The bottom of the side wall of the ship body is provided with a buffer mechanism used for buffering energy generated by collision, and the side wall of the ship body is provided with a jacking mechanism which is in transmission connection with the buffer mechanism; the buffer mechanism can restrain side tilting of the ship body through the jacking mechanism, an abutting mechanism is arranged at the end, away from the ship body, of the buffer mechanism, the buffer mechanism is in transmission connection with the abutting mechanism, and the buffer mechanism can clean the abutting mechanism. According to the special anti-collision structure for the unmanned ship for salvaging the garbage on the water surface and the using method of the special anti-collision structure, the contact area with the water bottom is automatically increased through the abutting mechanism, the buffer mechanism can effectively buffer the ship body, damage caused by collision to the ship body is reduced, the ship body is prevented from rolling over due to collision through the jacking mechanism, and safety during ship body collision is improved.

A bench press barbell stand with multi-stage protection comprises bottom plates and a bottom connecting plate. The bottom connecting plate is arranged between the rear ends of the two bottom plates, supporting plates are arranged at the ends, away from the bottom connecting plate, of the two bottom plates respectively, and a top connecting plate is arranged between the top ends of the two supporting plates; stabilizing plates are arranged at the ends, close to the bottom connecting plate, of the two bottom plates correspondingly, the top ends of the stabilizing plates are fixedly connected with the top ends of the supporting plates on the same bottom plate correspondingly, hanging rods are arranged on the outer sides of the stabilizing plates, barbell discs of different specifications and weights are hung on the hanging rods, and guide grooves are vertically formed in the middles of the two supporting plates correspondingly; barbell rods penetrate through the two guide grooves, clamping grooves are formed in the ends, away from the stabilizing plate, of the guide grooves, barbell discs sleeve the two ends of each barbell rod, anti-falling bolts are in threaded connection with the two ends of each barbell rod, and a first protection device is arranged between the middle of each barbell rod and the middle of the top connecting plate; and the first protection device, the second protection device and the third protection device are used for protecting trainees for training.

The invention discloses a rear axle differential mechanism on a three-wheeled motorcycle, which comprises a vehicle frame, a left rear wheel and a right rear wheel, the left rear wheel is connected with a first output shaft, the right rear wheel is connected with a second shaft and the second output shaft are respectively rotatably connected to the transmission sleeve, the side of the first output shaft close to the transmission sleeve is fixedly connected to the first turntable, the side of the second output shaft close to the transmission sleeve is fixedly connected to the second turntable, the two sides of the transmission sleeve The first electromagnet group and the second electromagnet group are respectively arranged on the side, the first iron block group and the second iron block group are respectively arranged on the first turntable and the second turntable, and the first iron block group is aligned with the first electromagnet group , the second iron block group is aligned with the second electromagnet group, the frame is provided with an input shaft, the input shaft drives the transmission sleeve to decelerate and rotate, and the frame is also equipped with an electronic control system, which is used to control the first electromagnet The iron group and the second electromagnet group are energized to generate magnetic force.

A submersible for difficult escape from water. The airtight capsule is mainly composed of a base, a capsule bone, a capsule skin and a sealing port. It is folded when it is in standby, and can be quickly unfolded after being triggered. The barrel-shaped capsule can accommodate at least one person; at least It consists of a pressure gas storage container, the main air inlet of which is connected to a compressed air source through a one-way valve, and is filled with high-pressure air, and the air outlet is connected to the main space in the bag through a valve. With the cooperation, it forms an automatic air circulation and air pressure adjustment circuit with the main space of the capsule body; after falling into the water, you can turn on the light in the dark, and extend your arms from the arm sleeves and gloves to save yourself from difficulties. In case of damage and leakage, you can emergency Put on a breathing mask, surface in front of the water, turn on the ultrasonic beacon, turn on the wireless beacon, emergency flashing light, emergency horn after surfacing, open the ventilation and sewage outlet to breathe fresh air; hungry and thirsty eat dry food, drink mineral water or filtered water , Equipped on ships or platforms operating in rivers, lakes and seas, which is conducive to escape.

The present invention relates to a double-structure TBM hydraulic propulsion system and a double-structure TBM. The hydraulic propulsion system includes: a main propulsion cylinder and a shield propulsion cylinder, and a main propulsion hydraulic circuit, which can drive the main propulsion cylinder to expand and contract, and operates under the following working conditions Ability to float: In the shield body propulsion mode, when the main girder of the TBM advances and the saddle support shoes and / or spreader shoes of the TBM support the tunnel wall, the main propulsion hydraulic circuit can float the main propulsion cylinder to ensure that the main propulsion The relative sliding of the beam and the saddle frame, in the shield body driving mode, the saddle support shoes can be used to provide support to support the main beam, or the support shoes can be used to provide rear support to support the main beam, or to provide horizontal adjustment The driving force can realize horizontal direction adjustment while driving, and improve the shield body advancing driving mode of the double-structure TBM.

The present invention proposes a multi-mode steering system and control method for a rectangular tunnel boring machine, which is used to solve the problem that the existing pipe jacking machine steering system has a single control mode, it is not easy to get out of trouble when the shield body is stuck, and the posture of the shield tail cannot be self-adapted. question. The invention comprises a fuel tank and an oil cylinder group, the fuel tank is connected with the oil cylinder group through a mode control module; at least two groups are arranged correspondingly between the mode control module and the oil cylinder group, the fuel tank is connected with the mode control module through an oil inlet pipeline, and the mode control modules are respectively connected with the The rod chamber pipeline is connected with the rodless chamber pipeline, the rod chamber pipeline is connected with the rod chamber of the oil cylinder in the cylinder group, and the rodless chamber pipeline is connected with the rodless chamber of the oil cylinder in the oil cylinder group; the mode control module Connect with oil return line. The present invention allows the roadheader to have multiple steering modes through the different control modes of the electromagnetic reversing valve and the electromagnetic ball valve, so that the roadheader can better adapt to the serpentine advancement, and the self-adaptation of the shield tail posture can better adapt to the curve excavation. It is easier to get out of trouble when the shield body is stuck.

The present invention relates to the technical field of vehicles, and in particular to a manual mode shift control method and a vehicle. The manual mode shift control method includes the following steps: the vehicle travels in the manually controlled M gear, and the wheel speed of the active wheels of the vehicle is obtained as no d , get the wheel speed of the driven wheel as n p ; Calculate the wheel speed difference Δn, Δn=n d ‑n p ;Judge whether the wheel speed difference △n is greater than the wheel difference threshold △n T , if yes, execute the slip control strategy, if not, judge whether the slope value of the vehicle driving is greater than the set slope threshold within the set time, if yes, judge whether the number of changes in the vehicle’s driving direction is greater than the set change threshold , if yes, the automatic transmission prohibits automatic upshifting, if not, the automatic transmission is controlled according to the set shift control strategy. The invention can take into account power driving and vehicle escape when the vehicle is in the manual mode, and improves the performance of the whole vehicle.