129results about How to "Reduced sealing costs" patented technology

The invention relates to a vacuum high speed blender which comprises a main cover composed of a cup cover and a bottom cover. The main cover is provided with an exhaust suction nozzle and an exhaust hole. The vacuum high speed blender further comprises an auxiliary cover, a vacuum nozzle is arranged on the auxiliary cover, and the bottom cover and the auxiliary cover are detachably assembled through a positive and negative turn-lock clasp; the exhaust suction nozzle is arranged on the bottom cover through an elastic device in a vertically stretchable and movable mode, an upper coupling portion is arranged on the exhaust suction nozzle, and a lower coupling portion is arranged on the vacuum nozzle; an air cavity is formed between the auxiliary cover and the bottom cover, the exhaust suction nozzle, the exhaust hole and the vacuum nozzle stretch into the air cavity, and the auxiliary cover or the bottom cover is provided with a ventilation groove communicating the air cavity with the external world. When the vacuum high speed blender is in use, no food residue is splashed to the main cover, only the auxiliary cover needs to be disassembled and washed, the main cover does not need to be flushed, and the service life of the air pump is prolonged. The main cover and the auxiliary cover are detachably assembled through the positive and negative turn-lock clasp, and in the assembling and disassembling process, coupling and separation of the exhaust suction nozzle and the vacuum nozzle are achieved. During vacuumizing of the cup body, the ventilation groove achieves the exhaust function, and the air leakage function is achieved during air return of the cup body.

The invention relates to an engineering material, particularly to a titanium carbonitride-base metal ceramic material for sealing pumps, valves and other machines. The titanium carbonitride-base metal ceramic material is prepared from Ti (C, N) powder, which has wide sources and low cost, as basic material, and binder, inhibitor and other additives as adjuvant materials. The preparation method comprises the steps of completely mixing the raw materials in ethanol or acetone solvent, drying, pressure moulding, placing the obtained blank into a reaction furnace, performing liquid sintering under vacuum or gaseous protection condition, and optimizing to obtain dense material with high hardness, and high bending strength and fracture toughness property. The inventive material has the advantages of resistance against high temperature, corrosion and abrasion, and low cost; and can be used for sealing pumps, valves and other machines. The preparation method has the advantages of simple process and applicability to industrial production; and has wide market application prospect.

A method is shown for joining and sealing a female plastic pipe end having a belled end opening to a mating male plastic pipe end having an interior surface and an exterior surface. A sealing element is installed within a groove formed in the belled end of the female pipe section. The male pipe end is then inserted into the end opening of the female pipe end so that the elastomeric sealing gasket makes sealing contact with the exterior surface of the male pipe. A control mechanism controls the distance the male pipe travels longitudinally within the end opening of the female plastic pipe to prevent overinsertion of the male pipe within the female pipe opening.

A coal mine two-end gas plug and middle water seal layer penetrating drill hole sealing device comprises a gas extraction pipe, a gas injection pipe and a water injection pipe which are arranged in parallel.A first limiting block, a first expansion gas bag, a second limiting block, a third limiting block, a second expansion gas bag and a fourth limiting block are sequentially arranged on the gas extraction pipe from inside to outside, an inner end opening of the gas injection pipe is communicated with the interior of the first expansion gas bag, a gas injection hole communicated with the interior of the second expansion gas bag is formed in the gas injection pipe, and an inner end opening of the water injection pipe is located between the second limiting block and the third limiting block.The invention further discloses a hole sealing method.Cheap water and air are adopted as hole sealing materials in the device and the method and can be supplemented through an underground air compression system and a water supply system as needed to ensure good hole sealing quality, the whole device can be recycled and reused after the extraction work is finished, pollution to a coal body, underground water and underground air can be avoided, the safety level of a mine is improved, and popularization of the novel coal mine gas treatment technology can be easily promoted.

The invention provides a method for realizing drilling and hole sealing based on drill cuttings during uplink gas extraction. The method comprises the following steps: constructing a large drilled hole in a coal body upwards; inserting a PVC (Polyvinyl Chloride) drivepipe with the total length of 14m and the diameter of phi 90mm into the large drilled hole after drill removing, wherein the distance between the inner end of the PVC drivepipe and the bottom of the hole is 1.5m; fixing two ends of the PVC drivepipe by use of fixing racks; sealing the PVC drivepipe in the port end of the large drilled hole and the large drilled hole by use of polyurethane; then continuously drilling inward along the interior of the large drilled hole so as to construct a small drilled hole, wherein the drill cuttings discharged during the drilling process fall into gaps between the PVC drivepipe and the wall surface of the large drilled hole due to the action of gravity so as to automatically fill and compact the gaps between the PVC drivepipe ad the wall surface of the large drilled hole, so that integration of drilling and hole sealing is realized; after drilling the small drilled hole at a preset position, completely removing a drill stem; connecting the outer end of the PVC drivepipe with a gas extraction pipe by virtue of a reducing joint so as to finish the whole hole sealing process. The method provided by the invention is reasonable in design, convenient in operation and simple in process; the hole sealing process can be finished by use of the drill cuttings discharged in the drilling progress, so that the hole sealing cost is lowered, and the hole sealing efficiency is improved.

The invention discloses an engine oil consumption measuring device and an automobile oil consumption management system using the engine oil consumption measuring device. The engine oil consumption measuring device comprises a flow meter, a one-way valve and an oil storage box, wherein the flow meter and the one-way valve are arranged on an oil supply pipe of an engine, the oil storage box is used for collecting fuel returning from an oil return pipe of the engine and conveying the fuel to the oil supply pipe of the engine, the upper portion of the oil storage box is provided with an oil inlet connected with the oil return pipe, the bottom of the oil storage box is provided with an oil outlet connected with the oil supply pipe, the connecting portion of the oil outlet and the oil supply pipe is located on the downstream of the one-way valve, and a control part used for controlling the opening and closing state of the oil outlet according to the height of the fuel in the oil storage box is arranged in the oil storage box. Due to the fact that the oil storage box is additionally arranged, the problem that measurement precision is influenced due to that the engine return oil is high in temperature and contains bubbles is effectively solved, real-time fuel consumption amount of the engine is precisely measured, and accurate oil consumption measurement is provided for engines of different types.

The invention provides a quick hole sealing agent for aluminum profile anode oxide films, which comprises a solid hole sealing agent and a liquid additive. The solid hole sealing agent is nickel salt, and comprises one or combination of more of nickel sulfate, nickel nitrate, nickel acetate and nickel ions. The liquid additive comprises the following components in percentage by weight: 1-2% of non-nickel metal salt, 5-10% of hydration accelerator, 1-2% of complexing agent, 0.1-0.5% of passivator, 0.5-1% of ash inhibitor and the balance of water. The quick hole sealing agent for aluminum profile anode oxide films can lower the nickel discharge concentration by more than half, can be widely used for sealing silvery white electrolytic coloring films and dyed anode oxide films, thoroughly inhibits the problem of hole sealing ash, and lowers the hole sealing cost to some extent, thereby relieving the problem of environmental pollution in the hole sealing technique on the premise of ensuring normal production.

The invention discloses a sound cavity structure and a mobile terminal. The sound cavity structure comprises a shell and a circuit board, a loudspeaker and a supporting plate which are arranged in the shell. The shell comprises a first shell body and a second shell body which are mutually connected. The first shell body is provided with a sound outlet hole penetrating through the first shell body. The internal side of the first shell body is provided with a front cavity channel communicated with the sound outlet hole. The internal side of the second shell body is provided with a slot body used for accommodating the loudspeaker. The mobile terminal comprises the sound cavity structure and a display screen. The display screen is installed at the external side of the second shell body. The sound cavity structure can be applied to the technical field of communication electronics, the defects in the prior art can be effectively overcome by applying the sound cavity structure, an independent application of the integrated BOX can be replaced by the optimized connection arrangement of the component, the limitation caused by the mould manufacturing period and the manufacturing cost of the integrated BOX can be eliminated, the concrete composition of the sound cavity structure can be optimized, the sealing problem caused by the integrated BOX can be avoided and the overall sealing performance of the structure can be enhanced.

The invention provides a deep sealing type hole sealing device which can solve the technical problem that a traditional hole sealing device is complex in process and cumbersome in operation. The deep sealing type hole sealing device comprises a suction pipe and a grouting pipe, wherein the suction pipe and the grouting pipe are arranged in parallel, two sealed bags are arranged at the two ends of a hole sealing segment of the suction pipe and the grouting pipe respectively, the bag close to a hole opening is a hole opening bag, the bag close to a hole bottom is a hole bottom bag, the bags wrap the suction pipe and the grouting pipe, the tail end of the grouting pipe is sealed and arranged at the bottom of the hole bottom bag, a one-way valve is arranged at the position, in the corresponding bag, of the grouting pipe, and an explosion valve is arranged between the two bags. The deep sealing type hole sealing device further comprises a floral pipe, wherein the floral pipe is provided with a plurality of notches, one end of the floral pipe is fixed to the outer portion of the bottom of the hole bottom bag, a sharp cone is arranged at the other end of the floral pipe, the tail end of the suction pipe stretches out of the bottom of the hole bottom bag to be connected into the notches of the floral pipe, and the end, close to the hole bottom, of the suction pipe is provided with a plurality of holes. According to the deep sealing type hole sealing device, casing installation, hole sealing and drainage are integrated, so that convenience is achieved, and operation procedures are reduced.

A device for actuating a gearwheel of a transmission device. The gearwheel rotates on a shaft and can be shifted by way an engagement mechanism that includes at least one actuator that is arranged at least partially inside the shaft. The actuator can be actuated by a pressure medium to fix the gearwheel to the shaft. The actuation force required for engaging or disengaging the gearwheel can come from within the shaft. The actuator is a piston-cylinder unit which is either rotationally fixed to the shaft or rotationally fixed relative the shaft. When the actuator is rotationally fixed relative to the shaft, the active connection between the actuator and the gearwheel, which is to be shifted, includes a drive decoupling unit between the actuator and the shaft.

The invention relates to an LCD panel and a corresponding sealing method. The LCD panel is provided with a first base plate and a second base plate; wherein, the first base plate is provided with a plurality of connecting cushions and the second base plate is arranged on the same surface with the connecting cushions. Then a semi-flow anisotropic conductive film is painted onto the connecting cushions and then a chip unit is pressed in a hot manner onto the anisotropic conductive film to lead the chip unit to be electrically connected with the connecting cushions through the anisotropic conductive film and also to lead the anisotropic conductive film to be cured so as to seal a clearance between the second base plate and the connecting cushions. The semi-flow anisotropic conductive film provided by the invention can simultaneously complete the sealing and communicating functions, thus simplifying the assembling process of the LCD panel and reducing the sealing cost.

The invention discloses a light source module of a laser television and a laser projection television, and relates to the technical field of the laser television. By the light source module, the problem of excessively high sealing cost caused by the adoption of airtight-level sealing of the whole light source module is solved. The light source module of the laser television comprises a shell, wherein a cavity is formed in the shell, a partition structure is arranged in the cavity and is used for dividing the cavity to a first chamber and a second chamber which do not communicate with each other, the light source module also comprises a laser module and an optical lens module, the optical lens module comprises a first transmitting optical lens and a second optical lens module, the second optical lens module is arranged in an output light path of the first transmitting optical lens, the partition structure comprises the first transmitting optical lens and a support part, the support partis used for supporting the first transmitting optical lens, the laser module is arranged in the first chamber, and the second optical lens module is arranged in the second chamber. The light source module is used for the laser television.

The invention relates to a liquid cooling heat radiation device, which comprises a heat radiator contacting the heating electric element, a liquid storage bank containing the liquid and at least one heat pipe. Wherein, the liquid storage bank is independent from the heat radiator and mounted on the frame; one end of heat pipe is connected to the heat radiator, while another end is connected to the liquid storage bank and dipped in the liquid. The invention has simple structure, lower cost, less noise and better heat radiation effect.

A device for filtering ballast water which performs filtering by installing a filter element having a conical shape in a concentric circle direction inside the device for filtering ballast water that accommodates a filter portion, and introducing ballast water from a lower end of the device for filtering and passing same through the filter element inside the device for filtering, and for discharging backwash water containing foreign substances that are inside a filter by way of differential pressure, which is created by a driving portion communicating with a filter element by rotating a suction portion that is located on a lower end of the device for filtering. Particularly, the present invention relates to a high-efficiency candle-type device for filtering ballast water having a high-density filter structure, wherein the driving portion is positioned on a lower portion of a housing so that more filter elements can be accommodated inside the housing.

The invention discloses a roadside seal device for retaining roadways along goaf. The roadside seal device comprises seal mechanisms, support mechanisms and lifting mechanisms. The seal mechanisms seal a gateway, the support mechanisms provide support force for the seal mechanisms, and the lifting mechanisms drive the seal mechanisms and the support mechanisms to rise and fall. The seal mechanisms comprise flexible cord fabric. The support mechanisms comprise carriers and support blocks. The top ends of the flexible cord fabric surround and wrap the support blocks and are in attached contact with a roadway roof plate, and the bottom ends of the flexible cord fabric are in attached contact with a roadway bottom plate. The invention further discloses an application method of the roadside seal device for the retaining roadways along goaf. According to the method, heading directional blasting of an immediate roof is performed before coal face mining, and multiple groups of connected seal mechanisms, support mechanisms and lifting mechanisms are arranged in the length direction of the gateway in sequence. It is guaranteed that the gateway is completely isolated from the goaf, air flowing through is prevented, the roadway seal effect is good, all related parts of the seal mechanisms and the support mechanisms can be recovered, and therefore seal cost is saved.

The invention discloses a hard rock push bench. The hard rock push bench comprises a cutter head, a crushing compartment and a housing, wherein the front end of the crushing compartment is connected with the back side of the cutter head, and the tail end of the crushing compartment is connected with the front end of the housing. The hard rock push bench is used for performing excavation work in a pebble bed, or a gravel bed, or continuous hard rock. No single bearing is arranged on a hob of the hard rock push bench, but a bearing inner ring is integrated onto a cutter shaft, a bearing outer ring is integrated onto a cutter body, and therefore structure of the hob is simplified, and production cost and manufacturing difficulty are reduced. .By regulating degrees of tightness between a hob seal ring and an annular gland through a gland regulation bolt, starting torque of the hob can be quickly regulated, and then the hob can adapt to different geological environments.

The invention relates to a multi-stage segmented grouting and plugging device for gas extracting and drilling. The multi-stage segmented grouting and plugging device for gas extracting and drilling comprises an air inflation bag, a water return pipe and a grouting pipe, and is characterized in that the air inflation bag is a cylindrical air inflation bag; multiple annular grouting grooves are formed in the external periphery of the cylinder of the air inflation bag in a concave way; bulge sections at two ends of the multiple annular grouting grooves are grouting isolation tables; an inflationinlet is formed in one end of the air inflation bag; water return valves are fixedly arranged on the inner walls of the upper parts of the multiple annular grouting grooves in a sealing way; the frontend of the water return pipe is inserted into the air inflation bag; the water return pipe is connected with the multiple water return valves; explosion valves are fixedly arranged on the inner wallsof the lower part of the multiple annular grouting grooves in a sealing way; the front end of the grouting pipe is inserted into the air inflation bag; and the grouting pipe is connected with the multiple explosion valves. The multi-stage segmented grouting and plugging device for gas extracting and drilling provided by the invention is simple in structure, simple and convenient to operate, low in cost and excellent in performance, and has outstanding technological advantages and wide popularization and application prospect.

The invention discloses a flexible curtain sealing device for a non-pillar roof-cut entry. The device comprises a sealing mechanism for sealing the entry during gob-side entry retaining, a supporting mechanism for supplying supporting force to the sealing mechanism, and a lifting mechanism for driving the sealing mechanism and the supporting mechanism to lift in the height direction of the entry, wherein the sealing mechanism comprises a flexible curtain fabric; the supporting mechanism comprises a supporting frame, and a supporting block which is arranged above the supporting frame; the top end of the flexible curtain fabric encloses the supporting block and clings to a top plate of the entry to achieve contacting; the bottom end of the flexible curtain fabric clings to a bottom plate of the entry to achieve contacting; the lifting mechanism comprises a lifting bracket; the lifting bracket is arranged below the supporting frame and is connected to the supporting frame. The flexible curtain sealing device is simple in structure, and achieves the complete yielding effect for the pressure of the top plate of the entry while lifting and hanging the flexible curtain fabric, so that the entry and a gob can be completely isolated and free of cross wind; in addition, all components of the device can be recycled, so that the sealing cost can be greatly saved.

The invention discloses a gas extraction hole drilling hole sealing technology in a manner of two-end self-blocking and under pressure. A hole drilling inner hole sealing device is utilized, the manner that a two-end self-blocking hole sealing bag grouts and seals a hole under pressure is adopted, and a hole sealing material is used for extracting gas, drilling the hole and sealing the hole; the length of a bedding hole drilling hole sealing section is 5-8 m, and the length of a perforative-layer hole drilling hole sealing section is not less than 5 m. With adoption of the technology, the hole sealing cost is low, the hole sealing air impermeability is high, the use is simple, convenient and rapid, positioning hole sealing can be realized, and the gas extraction hole drilling hole sealing efficiency is greatly improved; the traditional hole sealing technology is innovated in the terms of the hole sealing material, the hole sealing device and the hole sealing parameters.

The invention discloses a dual-purpose hole sealing device for gas extraction and coal seam water injection and a using method thereof. The dual-purpose hole sealing device consists of an extraction tube / water injection tube, a high-elasticity rubber tube, an integrated type elastic bag which is formed by inside and outside sealing elastic bags and a connecting tube thereof, and a grouting tube, wherein the extraction tube / water injection tube passes through the rubber tube, and is in sealing connection to two ends of the rubber tube; the water inlet tube and a water drainage tube are separately equipped with a switch and a one-way valve; the integrated type elastic bag covers the rubber tube; the grouting tube passes through the inside and outside sealing elastic bags which are in sealingconnection to the grouting tube, one-way valves are arranged in the inside and outside sealing elastic bags, and explosion valves are arranged between the inside and outside sealing elastic bags. Theusing method for the dual-purpose hole sealing device comprises the following steps: injecting water, grouting, grouting towards a grouting space through the explosion valves, stopping grouting, re-injecting water before slurry is solidified to keep water pressure constant, and taking out the extraction tube and the rubber tube to repeatedly use after gas extraction or water injection is accomplished. The dual-purpose hole sealing device can completely remove gas in the grouting space, eliminates appearance of drilling cracks and increases a crack sealing range in drilling surrounding rock bykeeping grouting pressure constant, and increases gas extraction amount or improves water injection effect.

The invention discloses a cross layer drilling separated type whole-course gas extraction hole sealing device and method. The device comprises a hole drilled in a coal seam, the top end of the drilledhole is in a drilled hole gas chamber in a second 1 coal seam, the inner cavity of the drilled hole gas chamber is provided with an upper hole sealing pipe, and the lower end of the drilled hole is provided with a lower hole sealing pipe; the wall of the upper hole sealing pipe is provided with a hole sealing pipe fixing device in a sleeve mode, and the upper hole sealing pipe is fed into the upper portion of the drilled hole gas chamber through a pushing rod; an upper bag and a lower bag are arranged inside a cavity formed between the outer wall of the lower hole sealing pipe and the innerwall of the drilled hole gas chamber, and a middle cavity formed by the upper bag and the lower bag is filled with expansion slurry; the lower hole sealing pipe is provided with a slurry injection pipe, and the expansion slurry is injected through the slurry injection pipe. The method comprises arranging the upper hole sealing pipe from the position of the drilled hole gas chamber to a coal crossed section, performing 'blocking twice with one injection) pressurized hole sealing through the lower hole sealing pipe and draining gas in the middle through drilled rock sections, thereby achieving good hole sealing air tightness, being less prone to gas leakage and meanwhile reducing the hole sealing costs as well as saving the drilling costs.

Disclosed is an electric pile of a redox flow battery. The electric pile comprises two or more than two sections of single batteries; each single battery comprises a bipolar plate, an electrode frame, a sealing gasket, an electrode, a membrane, an electrode, a sealing gasket, an electrode frame and a bipolar plate which are laminated in sequence, wherein each bipolar plate is made from a conductive rubber material; each electrode frame and the corresponding bipolar plate are in direct contact and are fitted in a sealing manner; and a sealing gasket is not needed to be put between each electrode frame and the corresponding bipolar plate. Compared with the existing redox flow battery which adopts a bipolar plate made from conductive plastic, the redox flow battery obtained by the invention adopts the bipolar plate made from conductive rubber material, so that a sealing gasket between the electrode and the corresponding bipolar plate can be omitted due to the sealing function of the conductive rubber material; and therefore, the structure of the cell is simplified, sealing parts are reduced, and the sealing cost of the redox flow energy storage cell is lowered.

The invention provides a polyurethane long-distance rapid fixed-point hole sealing device for underground drilling of a coal mine. The polyurethane long-distance rapid fixed-point hole sealing device comprises supporting legs, a material injection barrel, a barrel cover, a pressure air connection pipe, feeding funnels, a powerless pipeline mixer, a first polyurethane foaming bag, a second polyurethane foaming bag, a pressure measuring or extraction pipe, a first material injection pipe, a second material injection pipe and a slurry injection pipe, wherein the barrel cover is horizontally arranged at the top of the material injection barrel; the material injection barrel is internally vertically provided with a separation plate for separating the inner part of the material injection barrel into a material storage chamber a and a material storage chamber b; the pressure air connection pipe and the two feeding funnels are arranged on the barrel cover; the upper end of the powerless pipeline mixer is arranged at the center of the bottom of the material injection barrel; and an inlet of the powerless pipeline mixer is communicated with the material storage chamber a and the material storage chamber b. The invention further discloses a hole sealing method. With the adoption of the polyurethane long-distance rapid fixed-point hole sealing device provided by the invention, the labor intensity of workers can be greatly alleviated; the polyurethane long-distance rapid fixed-point hole sealing device has the advantages of light weight, convenience for carrying, simplicity in operation and the like; after hole sealing work is finished, a plastic thin film in the material injection barrel is removed to finish the work, so that the procedure of washing the material injection barrel is avoided and the device is convenient and rapid.

The invention provides a freezing fracturing and hydraulic punching type permeability improving and drainage promoting method for a low-permeability coal seam. The method comprises the following stepsthat cross-layer drilling is conducted on a coal body in a bottom plate rock roadway, the final hole points of all drilled holes are arranged in a grid array mode, and every two adjacent drilled holes are named as a liquid injection hole and a drainage hole correspondingly; drainage pipes are arranged in the drill holes for hole sealing, and an underground drainage system is connected for gas drainage; high-pressure water is injected into the liquid injection holes; special hole sealing devices are fed into the drainage pipes in the liquid injection holes and perform hole sealing; liquid nitrogen is injected into the liquid injection holes through the special hole sealing devices to freeze the coal body around the liquid injection holes; the liquid nitrogen is slowly sublimated into nitrogen under the action of the ground temperature, and the nitrogen effectively replaces and displaces gas in the coal body; and the drainage pipes in the liquid injection holes are connected with the drainage system for gas drainage work. The principle is scientific, design is ingenious, hole sealing is tight, the method can be widely applied to rock cross-cut coal uncovering, fault crossing, anti-reflection and drainage promoting of an excavation working face and other work, the anti-reflection and drainage promoting effects are good, and the application prospects are wide.

The invention discloses a planetary soil transfer and dust-proof seal device. The device comprises a substrate, a soil transfer mechanism and a dust-proof seal mechanism, wherein the planetary soil transfer mechanism comprises a guide rail arranged between two sliding brackets; a stroke motor is arranged on the substrate which can slide reciprocally along the guide rail; a first gear which is engaged with a rack is arranged on the rotating shaft of the stroke motor; a turning plate is arranged in a hopper; the rotating shaft of the turning plate is provided with a second gear which is engaged with a triggering rack; the dust-proof seal mechanism comprises a first motor seat, a pressure spring, a motor and a rotating cover, wherein a voice coil linear motor is arranged in the first motor seat; the pressure spring is positioned at the bottom of the voice coil linear motor; the motor is connected with the rotating shaft; the rotating cover is arranged on the rotating shaft and is in clearance fit with the rotating shaft; one end of the rotating cover is provided with an opening for planetary soil to pass; the other end is a seal cover; a force transmission rod is arranged on the seal cover; and a seal cup is arranged on a cup seat which is arranged below the rotating cover. The device has the characteristics of small volume, light weight, low power consumption, less required motors, dust prevention and sealing.

The invention discloses a nearly horizontal high pressure-bearing drilling sealing method and a sealing structure. The nearly horizontal high pressure-bearing drilling sealing method comprises that an enlarged hole is formed on an orifice of a high pressure-bearing drilling hole, a part which is arranged above a high pressure-bearing drilling upper bus is arranged on an inner step of the enlarged hole, a grouting pipe and a fracturing pipe are feed into the high pressure-bearing drilling hole, a return pipe is feed into the enlarged hole, orifices of the grouting pipe, the fracturing pipe and the return pipe are arranged outside an orifice of the enlarged hole, the orifice of the return pipe is higher than an upper bus of the enlarged hole, a sealing segment is formed on the orifice of the enlarged hole through polyurethane, and expansion cement slurry is filled into the high pressure-bearing drilling hole through the grouting pipe and is solidified. The sealing structure comprises an inner sealing segment and an outer sealing segment, a segment in the outer sealing segment and the inner sealing segment are formed by being synchronously filled with cement, the diameter of the outer sealing segment is bigger than the inner sealing segment, and an upper bus of the outer sealing segment is higher than an upper bus of the inner sealing segment. The nearly horizontal high pressure-bearing drilling sealing method and the sealing structure have the beneficial effects that the nearly horizontal high pressure-bearing drilling sealing method is simple, high in sealing efficiency and excellent in effect. The sealing structure can effectively eliminate influence of contraction joints or a hollow top to sealing effect of a sealing hole, and is high in pressure-bearing ability.

The invention discloses an auxiliary piston method for sealing an oil cylinder. The end of a guide sleeve of the oil cylinder, which is adjacent to the front chamber of the oil cylinder, is provided with a floating seal by installation, an external cylinder body and an external piston are installed on the external cylndrical surface of an oil cylinder barrel of the oil cylinder, the external piston can make reciprocating motion in certain distances along an axial direction in the external cylinder body, one end of the external cylinder body is provided with an oil pipe communicated with an oil groove by an oil passage, and the other end of the external cylinder body is provided with an oil pipe communicated with the rear chamber of the oil cylinder. A front and a rear piston rings are respectively installed on both ends of the piston, an internal cylinder body is processed in the axle center of the piston rod which is adjacent to the end of the rear chamber of the oil cylinder, an inner piston ring is installed in the internal cylinder body and can make reciprocating motion in certain distances along an axial direction in the internal cylinder body, and both ends of the internal cylinder body are provided with oil passages respectively communicated with the two oil grooves. The auxiliary piston method for sealing the oil cylinder enables the front and rear pressure differential of each soft seal ring to be far lower than the traditional oil cylinder by the displacement of an internal piston and an external piston during the motion of the oil cylinder, thereby slowing down the abrasion of each soft seal ring and prolonging the service life of the oil cylinder.

The invention belongs to the technical field of dyeing, and particularly relates to a preparation method of a water-based dyeing auxiliary agent for synthetic leather. A reaction kettle used in the method comprises a body, wherein the body is of a cylindrical structure and is vertically and conically arranged; the bottom of the body is communicated with a discharge pipe, and a stop valve is arranged on the discharge pipe; a motor is arranged at the top of the body and connected with a power supply through a controller; the output shaft of the motor penetrates through the body and extends intothe body, the output shaft of the motor is fixedly connected with a rotating shaft, and a group of stirring rods are uniformly distributed on the rotating shaft; an exhaust hole is formed in the top of the body, a feeding pipe is arranged on the body on one side of the exhaust hole and penetrates through the body, and a feeding hopper is arranged at the top of the feeding pipe; and a gas inlet pipe is arranged in the middle of the body and communicated with nitrogen through a pipeline. Nitrogen is introduced into the middle to be matched with the exhaust hole, so that the nitrogen replacementefficiency is improved, and the purity of nitrogen in the body is further improved.

The invention discloses a product for adjusting and managing internal gas of an electric shell and a manufacturing method thereof. The product comprises an outsourcing layer with an opening, a ventilation layer and a defogging mixture, wherein the ventilation layer is arranged at the opening of the outsourcing layer provided with the opening; the mixture with filtering and defogging functions is arranged in the outsourcing layer provided with the opening. The manufacturing method comprises the following steps: preparing an automatic production line process; charging; injecting the mixture with the filtering and defogging functions into the outsourcing layer; connecting the ventilation layer with the opening of the outsourcing layer provided with the opening in a covering and welding way; drying at a low temperature; vacuuming and sealing an aluminum foil bag. The product is used for adjusting air humidity inside small-sized sealing shell products such as network cameras and automobile lamps, so that the fogging and condensing phenomena of low-water-content damp air inside small-sized sealing shell products such as the network cameras and the automobile lamps on the inner surface of a smooth and transparent shell are avoided, the problem of balance between internal and external pressures is solved, the optical performance of the network cameras and the automobile lamps is brought into play effectively for a long time.

The invention discloses a method for preventing acid seepage of a wiring terminal of a valve-controlled lead acid storage battery, which comprises the following steps: (1) dripping 1 to 2 drops of epoxy resin glue at the combination position of the terminal and a cover of the storage battery ready for the plugging of a rubber 'O'-shaped ring, plugging the rubber 'O'-shaped ring for sealing and making the 'O'-shaped ring tightly contacted with the epoxy resin glue; (2) welding the wiring terminal, filling the epoxy resin glue in a terminal rubber groove till the epoxy resin glue fills half of the volume of the terminal rubber groove after the welding is finished; and (3) placing the storage battery made by the step (1) in an oven at 50 to 60 DEG C for 20 to 40 minutes, and after taking the storage battery out of the oven, filling red and blue or black epoxy resin glue for distinguishing positive and negative poles in the terminal rubber groove till the epoxy resin glue fills the rubber groove up. Production proves that the method can reduce the acid seepage (excluding acid seepage occurring after a period of use by users) rate to zero from the 1.18 percent of the prior wiring terminal not treated by the process.