130results about How to "Achieve a buffering effect" patented technology

The invention discloses a telescopic drainage hole sealer which comprises a drainage pipe; wherein, at least two coaxial hole seal pipes are sheathed on the drainage pipe, the drainage pipe is longer than the hole seal pipes, both ends of each hole seal pipe are respectively provided with a closure plate, and a coaxial cylindrical air sac is arranged between the hole seal pipes; the drainage pipe penetrates through and is connected with the closure plate and the air sac through rotation fit, and a holding apparatus outside the closure plates on the ends of the hole seal pipes is arranged on the drainage pipe. The telescopic drainage hole sealer has the advantages of simple structure, easy production and installation and convenient operation, can be suitable for draining or injecting liquid into holes of different hole diameters through the dimension change of the components of the telescopic drainage hole sealer, solves the fault problems of pipeline cracking, ventilation and liquid leakage and even breakage, prolongs the service life of the main device, shortens the working time, increases the working efficiency, reduces the drainage times and the maintenance workload and cost, has high drainage or liquid injection speed, high reusability and easy maintenance, and guarantees the quality and the safety of liquid drainage or injection.

The invention discloses a television set with screen shield for household use, include a first front guard frame, Second front guard frame, A television body and a rear guard frame, the first front protective frame and the second front protective frame are arranged at the front end of the television body, the first front protective frame and the second front protective frame are both provided withinsertion grooves, the two insertion grooves are inserted with protective glass, the inner sides of the first front protective frame and the second front protective frame are provided with fixing plates, balloon balls are evenly arranged on the inside of the fixing plate, the balloon ball is attached to the outer frame of the television body, the outer sides of the first front protective frame and the second front protective frame are both provided with fixed frames, A meshing groove is formed between the fixing frame and the first and second front protective frames, and the rear protective frame is inserted into the meshing groove. A spring is fixed on the inner surface of the rear protective frame, and a shock absorbing plate is fixed on the spring. The shock absorbing plate is attachedto the rear end of the television body. The invention has the advantages of screen protection, external shock absorption buffering and dustproof performance.

The invention discloses a hydraulic buffer. The hydraulic buffer comprises an oil cylinder seat, a buffering cylinder, a piston and a rotary sleeve; the buffering cylinder is installed in the oil cylinder seat and comprises a fixed buffering cylinder body and a movable buffering cylinder body, the fixed buffering cylinder body is installed in the movable buffering cylinder body in a sleeved mode, and throttling holes and reflowing holes are formed in the surfaces of the fixed buffering cylinder body and the movable buffering cylinder body; the fixed buffering cylinder body is used for storing oil liquid, a hollow portion formed between the fixed buffering cylinder body and the piston is an inner cavity, and a certain space is formed between the movable buffering cylinder body and the oil cylinder seat and used as a oil returning cavity to form an outer cavity; and the rotary sleeve and the movable buffering cylinder body are connected to control rotating of the movable buffering cylinder body and adjust the number and size of the aligned throttling holes of the movable buffering cylinder body and the fixed buffering cylinder body, when being subjected to the action of force, the piston moves inwards the buffering cylinder, and the oil liquid is compressed, flows to the outer cavity from the inner cavity through the throttling holes and then flows back to the inner cavity through the reflowing holes to achieve circulation of the oil liquid.

The invention provides an air inlet structure of an electric propulsion engine, relates to the problem of propellant supply of the electric propulsion engine, and belongs to the field of electric propulsion. The volume of the electric propulsion engine body is greatly reduced, and a propellant supply structure of the engine becomes more complicated. Because an engine gas distributor air inlet pipeline has a high discharge voltage and is in a relatively high working temperature range, a propellant supply pipeline outside the engine is difficultly in direct connection with a gas distributor, otherwise the engine is short-circuited. In order to solve the problem, an electric propulsion engine air inlet structure with sealing and insulating functions is designed. Conical surface extrusion is carried out on a gas distributor pipeline-sealing ring, and an air inlet cavity is formed between an air inlet flange and an engine body flange, so that the one-to-four connection mode between an external propellant pipeline and the engine gas distributor pipeline is achieved, and simultaneously the sealing and insulation requirements on the outer wall surface of the gas distributor pipeline and the engine body flange are met.

The invention relates to a buffer oil cylinder for plastic product forming machinery and belongs to the technical field of power sources of plastic product forming machinery. The buffer oil cylinder comprises an oil cylinder body and an oil cylinder column, wherein the oil cylinder body with an oil cylinder head at one end and a tail seat at the other end is provided with an oil cylinder head buffer oil cavity and an oil inlet and outlet hole, and the oil cylinder column is arranged in an oil cavity of the oil cylinder body. The tail seat is provided with a tail seat oil inlet and outlet hole, an oil cylinder column piston head is additionally arranged at one end of the oil cylinder column towards the tail seat, and a piston head sealing ring is arranged on the oil cylinder column piston head. The buffer oil cylinder for plastic product forming machinery is characterized in that a buffer column is formed on the surface of the oil cylinder piston head, the oil cylinder head is provided with an oil outlet hole and an oil return hole , a pressure oil flow adjusting mechanism is arranged on the outer wall of the oil cylinder head and communicated with the oil outlet hole and the oil return hole at the same time and controls flow of pressure oil entering the oil return hole from the oil outlet hole. Accordingly, the oil cylinder head is protected from being collided by the oil cylinder column piston head, no damage to the oil cylinder body is caused, and the buffer oil cylinder is simple in structure, easy to manufacture and mount.

The invention discloses a reinforcement device for a narrow coal pillar between roadways, which comprises a narrow coal pillar, a top plate and a bottom plate, a top plate is fixed above the narrow coal pillar, a bottom plate is fixed below the narrow coal pillar, and The column includes an anchor cable and a guard member plate, and an anchor hole is opened on the narrow coal pillar, and the guard plate member plate is fixedly installed on both sides of the narrow coal pillar, and the upper and lower parts of the guard plate member plate are provided with connecting devices, The anchor cable is located in the anchor hole, and the anchor cable passes through the anchor hole, and both ends of the anchor cable extend to the guard plate member, and both ends of the anchor cable are provided with fixed locks, and the anchor hole There are five anchor holes in the upper part of the narrow coal pillar symmetrically, one anchor hole in the middle part and two symmetrically in the lower part. The first grouting layer and the second grouting layer are arranged on the narrow coal pillar layer, the first grouting layer is located on the inner wall of the anchor hole. The invention has the advantages of simple structure, convenient and fast installation, reliable support, material saving and improved resource recovery rate.

The invention relates to a water outlet port structure for a water dispenser, which comprises a water outlet control box, wherein the bottom end of the water outlet control box is provided with a connection hole. The water outlet port structure is characterized in that a water inlet hood is sleeved in the connection hole; the water inlet hood is tightly connected with a water outlet sleeve; an upper end and a lower end corresponding to the water inlet hood and the water outlet sleeve are respectively connected with a water inlet pipe and a water outlet pipe which are communicated with each other; a buffer type pressure relief sleeve communicated with the water inlet pipe is further sleeved in the water outlet sleeve; the bottom surface of the buffer type pressure relief sleeve is providedwith a plurality of buffer discharge holes; the top end of the water outlet pipe extends into the cavity of the water outlet sleeve and abuts on the buffer discharge holes; the bottom end of the water outlet sleeve is provided with an obconical inclined surface; the bottom end of the water outlet pipe extends out of the inclined surface; and the inclined surface close to the outer wall of the water outlet pipe is provided with a plurality of water outlet holes communicated with the cavity of the water outlet sleeve in the circumferential direction. The invention has a simple and reasonable structure, can smoothly supply cool / hot water, is safe and reliable, and can relieve pressure during water supply.

The invention discloses semiconductor ceramic protection equipment. The equipment structurally comprises a machining center, a controller, a driving box, observation windows, a powder discharging groove and an equipment box. The upper end of the machining center is movably matched with the driving box, the upper end of the driving box is fixedly connected with the controller in an embedded mode, the observation windows are fixed to the left end and the right end of the driving box through bolts, and the lower end of the machining center is in clearance fit with the upper end of the equipment box; and the powder discharging groove is connected with the right end of the machining center in a nested mode, the powder discharging groove is connected with the upper end of the equipment box in awelded mode, and the machining center comprises a polisher, a protective cover, a rotating sleeve column, a construction bin and a fixing base. According to the equipment, through the centrifugal force generated during rotation, a powder scattering groove is moved, a displacement rod is expanded upwards through the action of centrifugal force under the cooperation of a thrust block and a rolling wheel, and internal hot air and ceramic dust are divided from a flow-dividing block and finally discharged from the discharging groove, so that the internal ceramic dust is effectively discharged out of a construction barrel, meanwhile, the internal hot air is discharged, and the problem that a grinding block adsorbs the dust due to heating is avoided.

The invention provides a bidirectional-protection automobile front bumper which comprises a front bumper body. The front bumper body comprises a first bumper and a second bumper which are in front-rear arrangement and are identical in radian, a buffering device is arranged between the first bumper and the second bumper, multiple upper buffering pads are arranged on the rear side of the first bumper, lower buffering pads corresponding to the upper buffering pads are arranged on the front side of the second bumper, the upper buffering pads and the lower buffering pads are in coaxial fit, gaps exist between the upper buffering pads and the lower buffering pads, maximum compression distance of the buffering device is greater than the gaps between the upper buffering pads and the lower buffering pads, and a protection device is arranged on the second bumper and comprises a safety airbag and a distance sensor. Buffering effect of the front bumper is improved through multilayer buffering, damage to passengers and impacted objects is reduced as much as possible during strong impact, damaged degree of an automobile is lowered, and property loss is reduced.

The invention relates to the technical field of textile cutting, and discloses textile cutting equipment capable of removing fluff. The equipment comprises a machine shell and a cutting device, a first notch is formed in the middle of the machine shell, a bottom block is slidably connected to the interior of the first notch, a concave block is fixedly connected to the upper end of the bottom block, a first spring is fixedly connected to the lower end of the bottom block, first stop blocks are arranged on the two sides of the bottom block, and second notches are slidably connected to the surfaces of the first stop blocks. According to the textile cutting equipment with replaceable blades, a rotating rod drives a cylinder to rotate, second stop blocks fixedly connected to the surface of thecylinder rotate on a gear, a supporting rod fixedly connected to the back surface of the gear rotates, the supporting rod drives the cutting blades to rotate, and the effect of switching the blades isachieved; and meanwhile, a screw in the surface of an inner shell slides in a fifth notch in the surface of an outer shell, and the buffering effect is achieved during cutting by the cutting blades.

The invention provides a hairbrush type elevator balance compensation chain guiding device. The hairbrush type elevator balance compensation chain guiding device comprises a fixed support (3), a guiding hairbrush (2) connected with the fixed support (3) and a working cavity (1) used for operation of an elevator compensation chain, the guiding hairbrush (2) is arranged on the inner side of the fixed support (3), the working cavity (1) is formed by surrounding of the guiding hairbrush (2) or cooperative surrounding of the guiding hairbrush (2) and the fixed support (3), and the strength G of hairbrush bundles of the guiding hairbrush (2) ranges from 50 to 120CN / mm<2>. By the aid of the hairbrush type elevator balance compensation chain guiding device, oscillation, noise, swing and abrasion generated when the elevator compensation chain runs at a high speed are prevented effectively, running stability of the elevator compensation chain is improved remarkably, service life of the elevator compensation chain is prolonged remarkably, and the integral compensation chain device system is safer and more reliable. In addition, the hairbrush type elevator balance compensation chain guiding device has the advantages of simple structure, convenience in mounting, low cost and the like.