36results about How to "Reduce strong impact" patented technology

The invention provides a lubricating oil composition for a motorcycle shock absorber. The lubricating oil composition comprises the following components in percentage by weight: 1-20% of viscosity index improver, 0-1.0% of extreme-pressure antiwear agent, 0.05-1.0% of antioxidant and antiwear agent, 0.001-0.01% of demulsifier, 0.0001-0.01% of antifoaming agent, 0.05-1.4% of pour point depressant and the balance of base oil. According to the invention, the lubricating oil composition has the advantages of proper viscosity index, good viscosity-temperature performance, good low-temperature property, excellent rubber compatibility, and good corrosion resistance and oxidation resistance, and can be also used for lubricating a bicycle saddle shock absorber.

The invention discloses a piston type axial flow pressure regulator which mainly comprises an axial flow regulation valve, a pressure regulation controller and a group of signal tubes connected with the pressure regulation controller and has the remarkable structure characteristics that separate flow passage, throttling and depressurizing functional component and guide mechanism functional component are designed in the axial flow regulation valve according to the separation principle. A cylinder sleeve is embedded between a valve seat and a valve sleeve to form an annular flow channel, and a piston is matched in the cylinder sleeve in a sliding manner to carry out pressure regulation and stabilization operation, so that the piston is guaranteed to be applied by the pushing and pulling action force in the axial direction only when sliding in the cylinder sleeve, the defects of large flow resistance, large vibration and high noise as the a turbulent flow is easily generated due to a meander flow passage with lower inlet and upper outlet of the traditional regulation valve are well overcome, and the technical effects of further improving the pressure regulation accuracy and pressure regulation stability are very obvious. The piston type axial flow pressure regulator has the outstanding advantages of simple and rapid structure, liability in production, low manufacturing cost, high pressure regulation accuracy, good stability of output pressure, safety and reliability in running and long service life and has very good popularization and application prospect.

The invention discloses a roller type multistage damping reed pipe anti-falling device for an unmanned aerial vehicle. A three-level damping reed pipe telescopic structure is adopted, damping reed pipes are in a thin-shell cylinder shape, and magnetic rods and springs are installed in the damping reed pipes. The two damping reed pipes have unequal lengths, and the length of the short reed pipe is one-third that of the long reed pipe. The long reed pipe and the short reed pipe are connected to a hinge support of a fuselage base plate, and the tail end of the short reed pipe is connected to the side wall of a first stage of the long reed pipe. A universal wheel support is connected with the long reed pipe, a rubber wheel is installed below the support, and a pressure ball bearing rotates to achieve 360-degree rotation of the rubber wheel. When the rotor unmanned aerial vehicle lands, the anti-falling device delays ground contact time by compressing the springs to reduce impact force and converts kinetic energy into elastic potential energy, magnetic damping can alleviate vibration, and energy is dissipated. The universal wheel support is matched with the rubber wheel to prevent rollover caused by a horizontal speed, and the goal of protecting the unmanned aerial vehicle is achieved. The anti-falling device can also serve as an undercarriage to make the unmanned aerial vehicle capable of landing directly.

The invention relates to a sleeve-removing shifting fork mechanism and a method for removing a sleeve on a winding drum of an uncoiler. The sleeve-removing shifting fork mechanism comprises a frame body (1), a shifting fork unit (2), a long pin shaft (3), a telescopic hydraulic cylinder (4) and a hydraulic cylinder holder (5), wherein the frame body (1) is of a rectangular body and fixed on foundation through a foundation bolt; the shifting fork unit (2) is fixed in the middle of the rectangular body through the long pin shaft (3); the top of the rectangular body is uniformly separated by long separation plates, the top surface of the rectangular body forms an oblique platform through the long separation plates, and the platform is used for the sleeve to roll; an empty groove between every two adjacent long separation plates allows a shifting fork of the shifting fork unit (2) to stretch out conveniently; and the shifting fork of the shifting fork unit (2) is hinged with the frame body (1) by utilizing the long pin shaft (3) through a first hinge hole. The sleeve-removing shifting fork mechanism is small in impact, regular to arrange and convenient for the subsequent treatment.

The invention relates to the technical field of hydraulic control, in particular to an unloading buffer hydraulic system. The system comprises a first pump body, a first reversing valve, a second reversing valve, a pushing plate oil cylinder and a first pump body low-pressure overflow valve; the first pump body is in communication with a hydraulic oil tank and the second reversing valve through amain pressure oil way, two oil outlets of the second reversing valve are connected to a rod cavity and a rodless cavity of the pushing plate oil cylinder respectively, and an oil return port of the second reversing valve is in communication with the hydraulic oil tank through an oil return pipeline; the first reversing valve is arranged between the first pump body and the second reversing valve, one end of the first pump body low-pressure overflow valve is connected to a pipeline between the first pump body and the first reversing valve, and the other end of the first pump body low-pressure overflow valve is in communication with the oil return pipeline; and before the second reversing valve carries out the reversing operation, the high-pressure oil unloading is carried out by the pushingplate oil cylinder. According to the unloading buffer hydraulic system of a rubbish compression box, unloading buffer of the pushing plate oil cylinder can be well achieved, the strong impact problemof a water hammer phenomenon is effectively solved, and the safety of an oil supply pipeline of the pushing plate oil cylinder is greatly improved.

The invention discloses a skid resistance supporting straining protection method for passing through a topsoil of the landslide area of an oil and gas conveying pipeline. The method comprises the following steps: a skid resistance and supporting pier, a trapezoidal groove reinforced concrete cushion cap and a pipeline transformation adjusting device are constructed; the pipeline transformation adjusting device capable of sliding freely is arranged on the groove-shaped cushion cap at the top of the pipeline and the skid resistance and supporting pier, and when the pipeline is subjected to the thrust effect of the landslide, the pipeline can perform self adjusting through the pipeline transformation adjusting device, so that the stress of the pipeline is reduced, the straining design is realized, and the purpose of protecting the pipeline is achieved. Besides, in consideration of the anti-seismic requirement, the filler material with better elasticity is filled between the pipeline in the groove and the two side walls of the groove through adopting the method, so that when a strong earthquake occurs, the pipeline in the trapezoidal groove is enabled to slightly move to left or right along with the shaking of the earthquake to relieve strong impact brought by the earthquake, and the purpose of protecting the pipeline is achieved.

The invention provides a novel connecting flange. The novel connecting flange comprises a first connecting end and a second connecting end. The first connecting end and the second connecting end eachinclude a flange plate and a connecting pipe welded and fixed to the flange plate. The two connecting pipes are connected and fixed together through threads. Connecting end surfaces of the two connecting pipes are provided with sealing pads. Center pipe openings of the flange plates of the first connecting end and the second connecting end are provided with a first connecting ring and a second connecting ring in sealed and sleeving mode correspondingly. A buffering net plate is further connected in the first connecting ring in a clamped mode. The buffering net plate includes a mounting frame body and a mansard blocking bar welded and fixed to the mounting frame body. The novel connecting flange has the beneficial effects that the two connecting ends are designed to be a threaded connectingstructure, so that the novel connecting flange has the ability to be disassembled so that the two connecting ends can be disassembled when the situation that one connecting end of the flange is damaged and cannot be applied and the other connecting end is structurally intact is encountered, the flange is assembled with a new connecting end into a whole to be used, so that a repairable characteristic is given to the flange, and the using cost of the flange is reduced accordingly.

The invention discloses a ring elastic buffer piece. The ring elastic buffer piece comprises an elastic ring, and a plurality of connecting rods and a plurality of elastic elements are arranged in theelastic ring; the ends of the connecting rods are connected with the side wall of the elastic ring, and each connecting rod comprises a first rod body and a second rod body which are spaced by a certain distance; the elastic elements are arranged between the first rod bodies and the second rod bodies, and each elastic element comprises a first shell, a first spring body, a second shell, a secondspring body, a first abutting piece and a second abutting piece, wherein the first shell, the first spring body, the second shell and the second spring body are sequentially connected in a sleeved mode from outside to inside, and each first abutting piece and each second abutting piece are fixedly connected with each first rod body and each second shell respectively; the axes of the first rod bodies, the second rod bodies and the elastic elements coincide. The ring elastic buffer piece is suitable for the joints of various machine parts, mechanisms and equipment, the strong impact of externalloads on the elastic ring is weakened, the accurate and multi-directional differential buffer protection effect on the whole interior of a machine can be achieved, the service life of the machine is prolonged, and the stability and accuracy of operation and use are improved.

The invention discloses a pneumatic encapsulating head applied for enclosing an aerosol valve. The encapsulating head is characterized in that a sealing cylinder (1), a buffer cylinder (2), a positioning pressure cylinder (3), and a vacuumizing cylinder (4) are arranged in the encapsulating head from top to bottom. A pushing pawl mechanism is arranged in the lower part of the vacuumizing cylinder (4). The air pressures in four cylinders in the encapsulating head are controlled by an air control valve so as to make the cylinders operate in steps to finish a complete circle including gas buffering, downward positioning, slow pressurizing, vacummizing to eliminate foams in a stock solution, opening sealing, and encapsulating head resetting, so as to seal the top valve and internal wall of an aerosol tank. The sealing effect is good, the operation speed is quick, and the requirements of high speed and high efficient aerosol production can be fulfilled by the provided pneumatic encapsulating head.

The invention discloses a special feeding groove for a wet coal spiral screening machine. The special feeding groove for the wet coal spiral screening machine comprises a feeding groove body; the feeding groove body consists of a vertical through groove way and an inclined groove way; the vertical through groove way is vertically arranged; the inclined groove way is aslant downwards guided below the vertical through groove way; an internal feed hopper is mounted at an opening end of the upper end of the vertical through groove way; electric heating plates are paved on a back end channel of thevertical through groove way and a lower end channel of the inclined groove way; a coal dust content detector is mounted on the inner wall of a front end channel of the vertical through groove way; analarm device is arranged at the external of the feeding groove body; and the coal dust content detector is in wireless induction connection with the alarm device. Through the mode, the feeding groovecan be special used for the screening work of wet coals; rising moisture can be heated by the electric heating plates to improve the coal quality; the internal feed hopper can prevent coal dust fromflying for discharge; and the coal dust content detector can detect signals of bad coal dust to transfer to the alarm device for alarming.

The invention discloses a dish washing machine which comprises a water tank and a base, a supporting structure capable of being supported on the base is arranged at the bottom of the water tank, and/or a supporting structure capable of supporting the bottom of the water tank is arranged on the base. The supporting structure is arranged at the bottom of the water tank and/or on the base, when the water tank structure moves downwards, the water tank and the base are separated through the supporting structure, the base of the dish-washing machine is prevented from being broken by the downwards-moving water tank and components of the water tank, and meanwhile a washing pump or other components at the bottom of the water tank are prevented from being damaged by collision. The supporting structure on the base is used in cooperation with the supporting structure on the water tank, when the water tank structure moves downwards, the supporting structure on the water tank abuts against the supporting structure on the base in a matched mode, the larger the downward moving distance is, the larger the resistance borne by the water tank and the supporting structure on the base is, and the stronger the impact force borne by the supporting structure is weakened through the gradually-changed resistance. Therefore, the supporting effect is better, and the protection effect of the supporting structure on the water tank and the base is further improved.

The invention relates to a built-in escape ladder suitable for a building curtain wall structure, and belongs to the technical field of escape facilities, the built-in escape ladder comprises an escape ladder body, the escape ladder body is located on the outer side of a window, the escape ladder body comprises a main frame, the main frame comprises a fixed frame close to one side of the window and a movable frame away from one side of the window, and glass is arranged on the movable frame, and when the escape ladder is in a folded state, the glass of the escape ladder is flush with curtain wall glass fixed on the surrounding wall body, so that the escape ladder and the curtain wall are integrated in a closed state, and the appearance and the function of the building curtain wall are not influenced. A sealing strip is further arranged on the periphery of the glass to seal a gap formed between the escape ladder in a folded state and curtain wall glass fixed on a surrounding wall body, so that the escape ladder has waterproof and heat preservation effects; the damper is arranged on the escape ladder body, so that strong impact on curtain wall glass during opening of the escape ladder is reduced, the integrity of a curtain wall structure is protected, and the use safety of the escape ladder is improved.

The invention discloses a brake pedal structure capable of protecting shanks and feet of a driver. The brake pedal structure comprises a brake pedal, a brake pedal arm, a brake pedal support, a brakepedal first upper support, a brake pedal second upper support, a brake lamp assembly and a brake pedal base. The brake pedal support is of a unique wavy structure. When the brake pedal support and thebrake pedal second upper bracket are stressed excessively; the brake pedal support and the brake pedal second upper support are bent from the collapsing holes to be collapsed and deformed, the upwarping amplitude of the brake pedal can be reduced in the head-on collision process of an vehicle, and therefore the shanks and the feet of a driver are protected, the probability that the driver is injured is reduced, the safety performance of the whole vehicle is improved, and the life safety of people is guaranteed.