14results about How to "Fall fast" patented technology

The invention belongs to the technical field of mine ventilation, and discloses a coal mine underground ventilation adjusting device which comprises a water storage box. Through cooperation of the interception assembly, the exhaust assembly and other structures, the exhaust assembly drives air in a mine and water sprayed by the water supply assembly to flow towards the side face of the filter plate and drives the spiral disc to rotate, and pulverized coal contained in the air is retained on the side face of the filter plate; a spiral disc rotates to concentrate pulverized coal and water to the middle of a filter plate and fall into a storage box, when the pulverized coal in the storage box is too much, the pulverized coal can descend, the pulverized coal is washed away by the water, a connecting rod can drive a guide ring to descend and rub the inner wall of a collecting pipe, and a mixture of the pulverized coal and the water adhered to the inner wall of the collecting pipe can also fall into the storage box. And therefore, the descending speed of the storage box is increased, the working efficiency of the device is improved, the water supply assembly can lift the two-way telescopic rod to the initial state again, and then the device can conduct pulverized coal cleaning and collecting work in a reciprocating mode.

The utility model discloses a centrifugal extractor which comprises a filtering mechanism, a mixing box and an extractor body, and the filtering mechanism comprises a guide hopper, a mounting frame, a chute, a filter screen frame body, a filter screen and a fixed block. After the filtering mechanism is used for a period of time, when the filtering mechanism needs to be cleaned, a fixing bolt is loosened, a fixing plate box is pulled out through a handle, a filter screen frame body and a filter screen can be pulled out of a mounting frame and a fixing block together, and then the filter screen can be cleaned; during installation, the filter screen frame body can be clamped in the sliding groove only by aligning the filter screen frame body with the inserting groove in the fixing block and pushing the filter screen frame body into the installation frame, and then the fixing plate is fixed on the fixing block through the fixing bolt. And the sealing ring is compressed in the process of tightening the fixing bolt, so that a good sealing effect is achieved. According to the device, the filtering mechanism can be conveniently cleaned, and the descending speed of liquid is increased, so that the extraction efficiency is improved.

The utility model discloses a production waste gas absorption device, which relates to the technical field of waste gas treatment and comprises a fixed seat, a treatment box is fixedly mounted on one side of the top surface of the fixed seat, inclined plates which are uniformly distributed are fixedly mounted on two sides in the treatment box, the number of the inclined plates is four, and the inclined plates are distributed in the treatment box in an up-and-down crossed manner; a gas inlet pipe is fixedly installed on one side of the treatment box, a positioning frame is fixedly installed on the top face, located on one side of the treatment box, of the fixing base, a water tank is fixedly installed on the top face of the positioning frame, and under the cooperation of four inclined plates and four water spraying pipes in the treatment box, the contact duration of water and waste gas is prolonged, and meanwhile the contact area of waste gas and water is increased; the problems that when a spraying device is installed on the inner top face of a treatment box to work, the falling speed of sprayed water is too high, the contact time of the water and waste gas is shortened, meanwhile, the contact area of the waste gas and the water is reduced, comprehensive and sufficient absorption of the waste gas by the water is not facilitated, and waste gas treatment is not thorough enough are solved.

The utility model discloses a sand precipitation device for sewage pretreatment. The utility model discloses a box body, both sides of the inside of box body are equipped with grating, one side of the inside of box body is equipped with conical pool, the bottom of conical pool is equipped with downspout, one side of downspout is equipped with electric valve and flow velocity detector, one side of the inside of downspout is equipped with buffer structure, the top of box body is equipped with motor no.

The invention belongs to the technical field of mechanical horn manufacturing, and particularly relates to a mechanical horn shell and binding post riveting device which comprises a bottom plate, supporting columns, a top plate, an air cylinder, an upper die assembly and a lower die assembly. The lower die assembly comprises a lower die base plate, a lower die base plate, a lower die fixing plate, a lower rivet head, a positioning seat fixing plate, a positioning seat, a spring D, a supporting rod A, a spring A, a screw plug A, a discharging push rod, a spring B and a screw plug B. The air cylinder is adopted to drive the upper die assembly to descend, compared with an existing device adopting a hydraulic cylinder, the descending speed is higher, and the production takt is effectively accelerated. According to the elastic discharging structure composed of the discharging push rod, the spring B and the screw plug B, compared with an existing mold adopting a fixed beef tendon discharging block structure, a product can be smoothly separated through the elastic force of the spring B, the problems that a gap becomes large after riveting and discharging is difficult are effectively solved, the stability of the product is improved, and the service life is longer.

The utility model belongs to the technical field of film blowing machines, and particularly relates to a heating structure for a film blowing machine, which comprises a melt pipe, an induction heating coil is arranged outside the melt pipe, an electromagnetic induction heater is arranged at the extension end of the induction heating coil, a partition plate is arranged inside the top end of the melt pipe, and the electromagnetic induction heater is arranged inside the melt pipe. A gas conveying structure is arranged at the top end of the melt pipe, a partition plate is arranged at the top end of the melt pipe, a liftable material guide pipe is inserted in the middle of the partition plate, a gas inlet pipe is arranged in the material guide pipe, and the top end of the gas inlet pipe is connected with a conveying pipe. Plastic in the feeding hopper is guided into the material melting pipe through the material guiding pipe, the air inlet pipe is arranged in the material guiding pipe and extends into the material melting pipe, air is input into the material melting pipe, the liquid plastic in the material melting pipe can be pushed downwards, the descending speed of the liquid plastic is increased, and the material supplying efficiency is improved.

The present invention belongs to the technical field of underground engineering construction, and specifically relates to a reaction force and locking system for a mud-water balanced caisson station in a soft soil area, including a reaction force truss, a jack and a locking device; the reaction force truss includes a crossbeam and a column, and the two ends of the crossbeam are respectively fixed to the two columns; the bottoms of the two columns are fixed to the ground, and the opposite sides of the two columns are provided with locking devices for cooperating with the locking piers on the side walls of the caisson section to lock the caisson section. The reaction force and locking system for a mud-water balanced caisson station in a soft soil area provided by the present invention applies a sinking force to the caisson structure and adjusts the caisson posture by arranging a jack under the reaction force truss; by arranging locking devices on both sides of the caisson section, and locking the caisson section by cooperating with the locking piers on the side walls of the caisson section, so as to facilitate the assembly and pouring of the next section of the caisson structure or monitor the current caisson section, thereby improving the construction speed of the caisson and ensuring safety.

The utility model relates to the technical field of buffering, and provides a spiral chute buffering tank which comprises two supporting frames, a tank body, a discharging pipe, a buffering plate, a material scattering assembly and a material receiving assembly, the tank body is fixedly installed between the two supporting frames, a through groove is formed in the side face of the tank body, the discharging pipe is fixedly installed at the top end of the tank body in a penetrating mode, and the buffering plate is fixedly installed at the bottom end of the tank body. The number of the buffering plates is two, the buffering plates are fixedly installed on the inner side wall of the tank body, the material scattering assembly is arranged on the tank body, a material scattering box is driven by the motor to rotate, and therefore ore in the material scattering hopper is scraped out by the scraping plate and falls into the material receiving hopper, and the material receiving assembly is arranged on the tank body. By means of the technical scheme, the problem that in the prior art, after ore is filtered through a spiral chute, due to the fact that water flow is large, ore with small mass is scoured to other places, and waste is caused is solved.

This invention discloses a self-cleaning dust filtration mechanism for cardboard processing, relating to the field of dust filtration technology in cardboard processing. It includes an adjustment unit mounted on top of a fixed frame to prevent dust overflow, and a cleaning unit that works in conjunction with the adjustment unit to periodically clean the dust inside the dust collection hopper. The top of the fixed frame is equipped with elastic ropes whose thickness changes with pulses. The dust collection hopper contains a first dust collection plate and a second dust collection plate for collecting dust. This invention utilizes a fixed rod at the top of the lifting frame that engages with the inclined groove of a rotating ring to convert displacement along the inclined groove into circumferential rotation of the rotating ring. As the rotating ring deflects, the elastic ropes are simultaneously tightened, dynamically increasing the gap between adjacent elastic ropes and providing a smooth falling channel for dust. Furthermore, the first and second dust collection plates flip from a horizontal to a vertical state, causing dust adhering to their surfaces to fall into the bottom of the dust collection hopper and be collected by an external collection system.

The invention belongs to the technical field of bridge pier construction, and particularly relates to a bridge pier climbing formwork descending protection device and a climbing protection method.The bridge pier climbing formwork descending protection device comprises a climbing frame, a hydraulic climbing formwork assembly and an anti-falling mechanism, the climbing frame is movably connected with a bridge pier through the hydraulic climbing formwork assembly, and the hydraulic climbing formwork assembly comprises a climbing oil cylinder, a reversing box and a guide rail with a notch; the guide rail is longitudinally fixed to a shear wall of a pier, the reversing boxes are installed at the two ends of the downward-climbing oil cylinder respectively, the downward-climbing oil cylinder is movably connected with the guide rail through the reversing boxes, and the anti-falling mechanism is detachably connected with the guide rail through a notch and connected with the reversing boxes in a clamped mode. The hydraulic climbing formwork has the beneficial effects that the whole climbing frame climbs down to the ground through the hydraulic climbing formwork assembly, and the safety of formwork removal construction is greatly improved.

The application discloses a rotating shaft assembly and a clothes processing device. The rotating shaft assembly comprises a first rotating shaft, a second rotating shaft and a spring piece. The first rotating shaft is connected with a machine body, the second rotating shaft is connected with a door body, the second rotating shaft is located on one side of the first rotating shaft in the axial direction and coaxially arranged with the first rotating shaft, and the first rotating shaft is rotationally connected with the second rotating shaft. The spring piece is sleeved on the first rotating shaft and the second rotating shaft, one end of the spring piece is connected with the first rotating shaft, and the other end of the spring piece is connected with the second rotating shaft. The first rotating shaft and the second rotating shaft are arranged along the axial direction of the rotating shaft assembly, and the spring piece is sleeved on the first rotating shaft and the second rotating shaft. The spring piece has a longer axial length, the force acting on the spring piece can be transmitted to a farther position away from the connecting position of the spring piece and the first rotating shaft / second rotating shaft, the deformation of a single coil of the spring piece is smaller, the service life of the spring piece can be prolonged, and the spring piece can be prevented from being frequently in a high-strength deformation state and thus prematurely failing.

The utility model relates to an illuminating lamp holder convenient for climbing maintenance, which comprises a bottom box, a lifting box and a top box, a support frame is arranged at the bottom of the bottom box, a motor is arranged at the top of the support frame, the motor is connected with a worm, a rotating shaft is arranged on the support frame in a penetrating manner, a worm gear meshed with the worm is arranged on the rotating shaft, two ends of the rotating shaft are provided with rolling wheels, and hollow columns are arranged on two sides of the top of the bottom box in a penetrating manner. Wheel grooves are formed in the positions, close to the tops, of the hollow columns, wire groove wheels are arranged in the wheel grooves, sliding sleeves are arranged on the two sides of the lifting box, the hollow columns are sleeved with the sliding sleeves, mooring ropes are connected to the two sides of the top of the lifting box, the two mooring ropes are wound around the two wire groove wheels correspondingly to be connected to the rolling wheels, and the bottom of the top box is connected to the tops of the two hollow columns correspondingly. A telescopic mechanism is arranged on the top box and connected with lighting equipment. Maintenance personnel can be driven to ascend to a high position to maintain the lighting equipment, the lighting equipment can be moved back to be close to the maintenance personnel during maintenance so that maintenance operation can be facilitated, and the lighting equipment can be unfolded after maintenance is completed so that the lighting effect can be improved.

The invention discloses a push shovel control method and system suitable for a backfill compactor, and belongs to the field of engineering machinery, the system comprises a controller, an electric proportional load sensitive multi-way valve, a handle, a push shovel, a push shovel oil cylinder, a displacement sensor and a working pump; the electric proportional load sensitive multi-way valve is connected with the working pump and is used for receiving an oil source provided by the working pump; the electric proportional load sensitive multi-way valve is respectively connected with a small cavity and a large cavity of the push shovel oil cylinder through an oil port A and an oil port B, and is connected with the oil tank through an oil return port T1; the controller is electrically connected with the electric proportional load sensitive multi-way valve, the handle and the displacement sensor and used for receiving a handle signal, a handle stroke value, a shovel pushing oil cylinder displacement signal and a real-time current signal of the electric proportional load sensitive multi-way valve. And the push shovel is controlled to ascend, descend and float. The valve position and the opening degree of the proportional valve can be efficiently controlled and adjusted, so that the push shovel can be adaptively controlled to ascend, descend, speed and buffer according to working conditions, and the construction efficiency is improved.

The utility model discloses a quick release valve with a buffering function. The problems that an existing loader movable arm is low in descending speed, low in operation efficiency and capable of shaking are solved. The oil return valve comprises a valve body, and the valve body is provided with a containing cavity, an oil return opening, a first oil opening connected with a large cavity of a movable arm and a second oil opening connected with a small cavity of the movable arm. The valve element is arranged in the containing cavity of the valve body and divides the containing cavity into a spring cavity and a control cavity. The valve element is provided with a first closed position, a second opened position enabling the first oil port to be communicated with the oil return port through the buffer throttling groove for oil return and a third opened position enabling the first oil port and the second oil port to be connected with the oil return port. The first elastic piece is arranged in the spring cavity, abuts against the valve element and is provided with a first position for driving the valve element to tend to be closed. The utility model also has the advantages of simple structure, convenience in assembly, reliable action, long service life and the like.