10results about How to "Guaranteed impact" patented technology

The utility model relates to a kind of exhaust structure of motor gear box for vehicle, including exhaust valve in gear box, labyrinth, backflow plate and several baffle, backflow groove is formed between backflow plate and gear box inner wall, baffle makes several intercommunicating chambers in gear box, chamber is between labyrinth and backflow groove, chamber is communicated with backflow groove, chamber is also communicated with labyrinth, exhaust valve is communicated with labyrinth, backflow groove is equipped with backflow port with gear box interior communication in both ends, oil liquid into chamber can flow through backflow groove and return in gear box, after the air pressure in gear box rises, gas is discharged from exhaust valve via labyrinth.The utility model is by being equipped with baffle, reduce the oil liquid that splashes when gear rotates enters labyrinth, also reduce the oil liquid reaching labyrinth entrance, effectively avoid the oil leakage situation of exhaust valve, oil liquid in chamber flows through backflow groove and returns in gear box, reach the effect of oil liquid backflow;Gas can avoid gear box oil leakage after being discharged.

The utility model belongs to the technical field of cleaning machines, and particularly relates to a cleaning machine placing frame structure and a cleaning machine, the cleaning machine placing frame structure comprises a frame body, the inner side of the frame body is provided with a supporting frame formed by a plurality of ribs, and the supporting frame is used for supporting an object to be cleaned; supporting legs obliquely downwards or bent downwards extend from the corners of the frame body, and the supporting legs are used for supporting an inner container of the cleaning machine; the boundary dimension defined by the outer edges of the bottom ends of the supporting legs is larger than the boundary dimension of the frame body. A cleaning channel is formed between every two adjacent supporting legs. When the cleaning machine is used for cleaning articles in the placing frame, part of water flow can wash the articles upwards from the cleaning channel formed between every two adjacent supporting legs, and under the action of gravity, the water flow can fall into the frame body to wash the articles on the supporting frames.

The application discloses a micro-thermal battery activation device and relates to the technical field of micro-thermal battery activation. The device comprises a battery base body, a mounting seat is fixedly connected to the top of the battery base body, a filler is mounted at the bottom of the mounting seat, a plurality of ignition caps are inlaid between the filler and the bottom of the mounting seat, a circular ring seat is fixedly arranged in the mounting seat, a plurality of striking pins are vertically and slidably arranged in the surface circular holes of the circular ring seat through elastic members; three groups of force storage assemblies are arranged, each group of force storage assemblies corresponds to a group of trigger assemblies, the trigger conditions of the three groups of trigger assemblies are different, the force storage assemblies are matched with the trigger assemblies, multi-factor triggering in a complex environment is realized, the situation of activation failure is avoided, the force storage assemblies are in a non-force storage state in a non-triggering state, the spring is prevented from being in a stressed state for a long time, stress fatigue is avoided, and long-term preservation is more facilitated.

A lifting type range hood comprises an upper box body and a lower box body, the lower box body is arranged on the upper box body and can do lifting motion relative to the upper box body, a draught fan is installed in the upper box body, the lower box body is provided with a smoke inlet, the central axis L of an impeller of the draught fan is completely located in a vertical plane S, and the vertical plane S is perpendicular to the plane where the smoke inlet is located. The intersection point of the vertical plane S and the upper edge of the smoke inlet is B, the intersection point of the central axis of the impeller and the plane M where the volute cover plate located on the main air inlet side of the draught fan is located is A, the slope of the connecting line from the point A to the point B is k1 in the state that the lower box body rises to the highest position, the slope of the connecting line from the point A to the point B is k2 in the state that the lower box body descends to the lowest position, and k1-k2 is larger than or equal to 0.8. According to the lifting type range hood, the lifting stroke is limited in a certain range through limitation of two slope difference range values, so that the range hood has enough descending stroke and negative pressure area downward movement to ensure the oil smoke suction effect, and also has enough ascending stroke to ensure that the size of the whole range hood is relatively small.

The application discloses an intrinsic voltage estimation and parameter self-setting method and system for low-voltage governance, and is applied to the technical field of smart grids, and the method comprises the following steps: acquiring electrical quantity data of a target governance device; correcting the current line equivalent resistance and line equivalent reactance according to the electrical quantity data; calculating the intrinsic power grid voltage according to the electrical quantity data, the corrected line equivalent resistance and the corrected line equivalent reactance; generating the proportional gain of a closed-loop controller through a preset inverse proportional relationship of the corrected line equivalent resistance, generating the integral gain and the differential gain according to the proportional gain according to a preset proportion; and updating the control parameters through the calculated proportional gain, integral gain and differential gain. According to the application, the line impedance does not need to be manually input, the line characteristics are self-learned through online active disturbance and passive observation, the deployment conditions of different transformer areas, different lengths and different loads are adapted, and the deployment cost and maintenance cost are significantly reduced.

This invention discloses a method for preparing low-viscosity dimethyl silicone oil, comprising the following steps: S1, after removing moisture from the raw materials methylcyclosiloxane and end-capping agent, a polymerization reaction is carried out under the action of a catalyst until the viscosity no longer changes, obtaining a primary crude dimethyl silicone oil; S2, the obtained primary crude dimethyl silicone oil is decolorized to obtain a secondary crude dimethyl silicone oil; S3, the secondary crude dimethyl silicone oil treated in step S2 is subjected to vacuum distillation or rectification to remove boiling substances at low temperatures, obtaining finished low-viscosity dimethyl silicone oils. According to this method, dimethyl silicone oils with a viscosity of any value less than 20 mm² / s at 25°C can be prepared for use in fabric finishing agents.

The application discloses a kind of construction engineering construction rapid piling device, comprising: mobile carrier, adjusting device, support frame, limiting device, fixing device, driving device, piling device, the mobile carrier carries equipment whole moves;The adjusting device is fixed on mobile carrier, and the angle of equipment is adjusted;The support frame is fixed on adjusting device;The limiting device is slidably arranged on support frame;The fixing device is slidably arranged on the inner side of support frame;The driving device is fixed on fixing device;The piling device is slidably arranged on the inner side of fixing device.Compared with prior art, by the setting of driving device, under the cooperation of rotating assembly, the outer pile hammer and the inner pile hammer are controlled, under the action of forward capstan and reverse capstan, staggered piling work is carried out, and the piling rate is improved.

The utility model discloses a punch press sliding block relates to punch press spare part field, and its technical scheme main points are: including main part, the buffer cavity is seted up in main part, is equipped with a plurality of buffer sheets in buffer cavity, and buffer sheet can move in vertical direction relative to main part. In the utility model, when the falling of main part slows down, the buffer sheet exerts a downward force on the main part under the action of inertia, reduces the rebound tendency of the main part and ensures the impact force of stamping, ensures the smooth stamping process, and the elastic sheet and the elastic gasket are all made of rubber material, which reduces the noise generated by the collision between the buffer sheets and the inner wall of the buffer cavity.

The present application discloses a converter slag blocking device, in which a raised platform and a butt joint platform are arranged in the brick arrangement, and the bowl brick is cancelled, the service life of the brick arrangement and the taphole is improved, the original brick arrangement and the easy brick arrangement are arranged, the precision of the brick arrangement installation is improved, the brick arrangement pressing plate is a flat plate type and is provided with a stepped lifting hole and a lifting hook in the lifting hole, the bending deformation of the brick arrangement pressing plate is reduced, the quick lifting problem of the brick arrangement pressing plate is solved, the precision of the brick arrangement installation is further improved, the brick arrangement overhang of the buffer base, the pressing plate relaxation chamber and the bolt stretching pool are arranged, the flexible fire clay contact between the buffer base and the brick arrangement is ensured at all times, the problems of the bending deformation of the inner slide plate cavity plate, the plate surface crack fracture of the inner slide plate, the slide plate clamping steel and the like caused by the over-high installation of the brick arrangement and the brick arrangement pressing plate are solved, and the stability of the mechanism surface pressure is obviously improved, the converter slag blocking device is safe and long in service life, stable in operation, low in comprehensive cost and simple in operation and maintenance.

The application provides a P-SCH layer, a CW laser epitaxial structure and a preparation method thereof, and belongs to the field of semiconductors. The application provides a P-SCH layer, which is a multilayer structure, the number of layers of the multilayer structure is 2n, n is greater than or equal to 2, the emission wavelength increases from the first layer to the 2n layer; the difference between the emission wavelength of the n+1 layer and the emission wavelength of the n layer is 100-120 nm, and the difference between the emission wavelength of the remaining adjacent layers is 10-20 nm. The layer has a small span of two end emission wavelengths and a large span of middle emission wavelengths, a ladder structure, which greatly guarantees the electron leakage rate and the hole injection rate, thereby controlling the increase rate of the photon density with the increase of the current injection, and improving the device temperature stability.