35results about How to "Prevent sports car accidents" patented technology

The invention discloses a buffer connection device for a vehicle and application of the buffer connection device. The device comprises a connection rod, wherein one end of the connection rod is arranged in a vehicle roof in a sleeving manner; a guiding frame body connected with a vehicle end plate to form an integrated structure is arranged on the connection rod in a sleeving manner; the other end of the connection rod is connected with a buffer stop; when the buffer stop is stressed, the connection rod is pushed and slides relative to the guiding frame body; an elastic piece is sleeved at a position, which is located between the vehicle roof and the guiding frame body, outside the connection rod. According to the buffer connection device for the vehicle, the connection rod is connected with the buffer stop, so that soft connection is realized, and protection of a vehicle structure is facilitated; when arranged between the vehicle end plate and the vehicle roof, the connection device disclosed by the invention is simple in structure; the connection rod can slide between the vehicle end plate and the vehicle roof, so that energy can be buffered, and reliable connection can be realized.

The invention discloses an elevator and arrester linkage protection device, which belongs to inclined roadway hoisting system protection devices, and structurally comprises a signal monitoring and sensing component and a control box. The opening and closing state of an inclined roadway arrester is monitored in real time, and starting of the elevator is strictly controlled according to the openingand closing state of the arrester. When the arrester is in a closed state, a signal monitoring assembly sends a signal, and a control box allows the elevator to be started normally; when the arresteris in an open state, the monitoring assembly sends out the signal, the control box forbids the elevator to be normally started, only an operator carries out on-site confirmation, determines that a transport vehicle needs to pass and needs to normally open the arrester, and at the moment, an elevator driver can start the elevator in a control box safe starting mode to carry out transport operation.The phenomenon that safety accidents frequently happen due to the fact that opening and closing of the arrester depend on manual judgment operation in the current inclined roadway transportation andlifting operation, and once a hooking worker and the elevator driver have a slight error or responsibility of any party is not in place is avoided. The opening and closing of the arrester body and starting linkage control of the elevator have the advantages of being safe and reliable.

The present invention relates to mine runaway preventer, and is especially a kind of normally closed slope mine car runaway preventer interlinked with winch. The mine car runaway preventer includes two mine car barriers, each of which comprises a energy absorber fixed on the ground, mine car arresting nets on two sides of the energy absorber and one lifting motor to elevate the arresting nets, set in certain interval inside the inclined shaft; one mine car depth indicator and one control circuit to control the operation of the mine car barriers. The present invention has reasonable structure, capacity of interlinking with different types of winch and function of preventing mine car runaway effectively, and is suitable for use in inclined lifting transportation tunnel of inclination below 30 deg.

The invention discloses a mine car with safe braking, comprising a car plate and wheels, a connecting seat is fixed at the end of the car plate in the forward direction, a moving rod is arranged under the car plate, and a rectangular frame is installed at one end of the moving rod. The frame is sleeved on the connecting seat of the car board, and the end of the moving rod away from the rectangular frame is connected horizontally with the end of the two connecting rods, respectively, and the included angle between the moving rod and the connecting rod is an acute angle, and the middle part of the two moving rods passes through. The first elastic piece is connected, the ends of the two connecting rods away from each other are horizontally connected with sliding rods, and the positions of the bottom side of the vehicle board corresponding to the two sliding rods are fixed with fixed blocks. The fixed block is slidably connected, and there are several limit slots on the inner side of the car board that are adapted to the sliding rods; when the staff mistakenly removes and hangs the latch or the latch accidentally disengages during the movement of the adjacent two cars, the wheels are restricted from rotating to avoid sports car accidents. occur, reducing security risks.

The invention belongs to coal mine transport devices, and particularly relates to an inclined roadway tramcar which solves the problem that the sliding down accident is likely to happen in a transport roadway. The inclined roadway tramcar comprises a frame. wheel axles are arranged at the bottom of the frame, wheels are connected to the two ends of each wheel axle, wheel teeth are arranged on the wheel axles, auxiliary axles parallel to the wheel axles are arranged on the frame and can freely rotate, clamping blocks are fixed on the auxiliary axles, one ends of the clamping blocks are meshed with the wheel teeth, the dip angle of the clamping blocks is positive when the clamping blocks are meshed with the wheel teeth, springs are fixedly connected with the auxiliary axles, and the other end of each spring is a movable end and can be fixed at different positions of the frame. When the inclined roadway tramcar is used for lifting various devices, rotation of the wheels can be automatically locked, and the sliding down accident under various conditions is avoided. When the tramcar is parked, the tramcar is prevented from sliding in lateral directions.

The invention belongs to the technical field of designing and manufacturing of underground auxiliary transportation devices used under coal mines and provides a mining automatically-moving equipment train capable of stepping forward along a roadway to achieve underground transportation along roadways of the coal mines. The mining automatically-moving equipment train capable of stepping forward along the roadway comprises a front anchoring and pulling device, a rear anchoring and pulling device, a flat car and an expansion pipe cable bearing system, wherein the front anchoring and pulling device and the rear anchoring and pulling device are erected on an anchoring frame guide rail, the flat car is erected on a flat car guide rail, a forward-pushing jack is arranged at the front end of the front anchoring and pulling device, the rear end of the front anchoring and pulling device is connected with the flat car through a backward-pushing jack, the front end of the rear anchoring and pulling device is connected with the flat car through a pushing jack, and the rear end of the rear anchoring and pulling device is connected with the expansion pipe cable bearing system through a connecting pipe. The mining automatically-moving equipment train capable of stepping forward along the roadway has the advantages of being flexible, convenient to use and the like; equipment movement efficiency and safety are improved, equipment movement time is shortened, frequent rail laying and pulling transportation are avoided for workers, the labor intensity of the workers is relieved, and it can be guaranteed that the equipment train can travel on a ramp with the gradient being + / - 10 degrees.

The invention relates to a dissipative energy absorber, in particular to a variable resistance dissipative energy absorber, which is mainly applied to a free-sliding protecting device in an inclined shaft in the field of mine. The variable resistance dissipative energy absorber comprises a central screw, a driving wheel, an upper bearing seat and a lower bearing seat, wherein the driving wheel isprovided with a central hole, and the central hole is provided with an internal nut which is fixedly connected with the central screw; one end of the driving wheel is provided with an external groove, and the driving wheel is fixedly connected with a driving friction plate through the external groove; the other end of the driving wheel is provided with a roller, and wire ropes can be wound and fixed on the roller; the upper bearing seat and the lower bearing seat are fixedly connected through the central screw; the inner surface of the lower bearing seat is connected with a plurality of rotary springs, and the other ends of the rotary springs are connected with a driven bearing disc; the driven bearing disc is provided with a driven friction plate; and the driven friction plate and the driving friction plate are alternately connected. The variable resistance dissipative energy absorber has the performance of automatic change according to the impact energy amount of an external load, has strong reliability and large energy absorption capacity, and can fully, effectively and timely avoid the occurrence of free-sliding accidents.

The invention discloses a locomotive traction braking device, which belongs to the technical field of rail machinery transportation. The technical solution adopted is: the first step is to increase the laying of brake tracks on the center line of the track of the transport roadway. No brake track shall be laid within the range of 8m extending from the front and back of the straight line section of the track in the transportation avenue to the turnout; the second step is to install a friction brake box on the main body of the locomotive; the third step is to install a pneumatic brake box in the friction brake box. Type brake device and automatic reset mechanism, the pneumatic brake device cooperates with the brake track for friction braking; the automatic reset mechanism makes the pneumatic brake device in a non-braking state when the air is not continuously supplied; the fourth step, In the non-braking track section of the track, the pneumatic brake device is completely disengaged from the braking track. It changed the practice of relying solely on the traditional locomotive main body to brake its own wheelset, and added a friction braking device between the locomotive main body and the braking track to prevent sports car accidents.

The invention belongs to the technical field of designing and manufacturing of auxiliary transportation equipment for underground coal mines, and provides a stepping self-moving anchoring device of an equipment train so as to solve the technical problems that an existing winch pulling-moving equipment train mainly adopted for underground coal mines is large in workload, poor in stability and high in dangerousness. The stepping self-moving anchoring device comprises a front pushing-moving jack, hoisting devices, deviation adjusting devices, an anchoring frame, tracks and a rear pushing-moving jack, wherein the hoisting devices are arranged on the front and rear sides of the anchoring frame respectively, the tracks are arranged on the lower portions of the hoisting devices, the deviation adjusting devices are arranged at the front and rear ends of the anchoring frame respectively, and the front pushing-moving jack and the rear pushing-moving jack are arranged in the front and back of the anchoring frame respectively. The stepping self-moving anchoring device has the hoisting, deviation adjusting and anchoring effects on the equipment train; the anchoring frame replaces a winch, steel wire rope traction is omitted, and therefore the train sliding accident caused by breakage of a steel wire rope is avoided; the stepping self-moving anchoring device is provided with the tracks, workers do not need to lay tracks repeatedly, and therefore labor is saved, and safety of the workers is guaranteed.

The invention provides a mine man car connection anti-falling plug pin. The mine man car connection anti-falling plug pin is easy and fast to operate, and safe and reliable to close and lock, can effectively avoid the situation that a mine man car jumps out of the plug pin due to various factors, the operation safety is guaranteed, and mining cart sliding accidents occurring due to pin jumps are avoided.