67results about How to "Avoid liquidity" patented technology

The invention discloses a circumferential air inlet gas spiral-flow type atomizing nozzle, and aims to solve the problems of disordered air flow distribution and unbalanced pressure in a gas storage cavity of an existing atomizing nozzle so as to improve the atomizing efficiency and the powder quality. Comprising an upper cover, an air inlet disc and a base, the upper cover and the air inlet disc are matched to form an air inlet cavity for circumferential air inlet and a circular seam outlet, an air inlet channel is arranged in the circumferential direction of the air inlet cavity, and three guide blades are arranged at the lower end of the upper cover at equal angles and used for guiding the airflow direction; in addition, a metal liquid flow channel is formed in the center of the upper cover, and a base groove is used for containing an air inlet pipe and fixing a nozzle. By arranging the circumferential air inlet channel and the guide vanes, gas flows in a vortex shape, the mixing efficiency is improved, vortexes and dead zones are reduced, pressure balance in the cavity is achieved, rotating airflow with high impact force is formed, and the atomization effect is optimized; by improving the structural design of the atomizing nozzle, the particle size uniformity and sphericity degree of atomized powder are remarkably improved, satellite powder is reduced, and the powder yield and the powder quality are improved.

The invention relates to the technical field of power generation and energy storage, and discloses liquid cooling type new energy power generation and energy storage equipment which comprises a cabinet body. The energy storage equipment is mounted in the cabinet body; the temperature sensor is mounted on the side surface of the energy storage equipment; the cooling structure is arranged on the side surface of the energy storage equipment; the water removal structure is arranged on the side surface of the energy storage equipment; the water receiving structure is arranged on the side face of the energy storage equipment and located below the cooling structure; and the feedback structure is arranged on the side surface of the energy storage equipment. The mounting plate and the absorbent cotton on the mounting plate are driven to move through the connecting plate, the vertical plate and the connecting piece, the absorbent cotton is tightly attached to the side face of the outer-layer pipe, the absorbent cotton is clamped to the outer-layer pipe through the grooves in the absorbent cotton, and therefore condensate water generated on the surface of the outer-layer pipe can be effectively absorbed in the moving process; by means of the design, the situation that water mist is condensed into water drops and drips is avoided, and it is ensured that condensate water is effectively treated in time.

The invention relates to the technical field of epoxy resin, in particular to an epoxy resin composition for high-strength carbon fiber winding and a preparation method thereof.The preparation method of the epoxy resin composition comprises the steps that S1, modified epoxy resin, a compatilizer, a retarder, a defoaming agent and nano filler are added into a reaction kettle and mixed and stirred, and a mixture A is obtained; s2, a composite curing agent is added into the mixture A, stirring and mixing are conducted, and the epoxy resin composition is obtained and has the advantages of being appropriate in viscosity, good in heat resistance, excellent in impact resistance, large in bending strength, small in volume shrinkage rate in the curing process, moderate in gelation time and capable of being wound with carbon fibers conveniently to prepare the composite material.

The invention relates to the field of novel polymer materials, and particularly discloses a degradable expandable polylactic acid polymer foam material and a preparation method thereof, the degradable expandable polylactic acid polymer foam material comprises the following raw materials: a polylactic acid-starch-polyamide blending modified mixture, polylactic acid foam material waste leftover materials, a foaming agent, a nucleating agent and an activating agent; the preparation method comprises the following steps: melting and mixing polylactic acid, acylated starch and polyamide in proportion to prepare a polylactic acid-starch-polyamide blending modified mixture, weighing the polylactic acid-starch-polyamide blending modified mixture, mixing the polylactic acid-starch-polyamide blending modified mixture with the polylactic acid foaming material waste leftover materials, the foaming agent, the nucleating agent and the activating agent, and performing extrusion molding to obtain the polylactic acid foaming material. Extruding and pelletizing to obtain foaming master batch, and foaming and forming; the preparation method has the characteristics that the expandable performance of the polylactic acid material is improved, and the prepared polylactic acid foam material is more uniform in cell size distribution, small in cell size and excellent in mechanical property.

The invention discloses an enterprise digital exhibition and sales architecture management system, and relates to the technical field of exhibition architecture management, and the system constructs and evaluates a regional distribution index Qyfb and a regional congestion index Ydz through a three-dimensional model building module, a layout management module and a real-time human traffic analysis module, can accurately evaluate the spatial distribution between showcases, and improves the exhibition and sales efficiency. The layout is adjusted in time to optimize the use efficiency of the exhibition area, and the exhibit is prevented from being too dense or loose; the method monitors and predicts the crowd congestion condition of the exhibition area in real time, dynamically adjusts the guide identifier and the interaction area setting, and relieves the congestion. The digital acquisition module and the analysis module realize comprehensive acquisition and analysis of illumination and environmental conditions of an exhibition site. The condition data set is deeply analyzed through the neural network technology, the illumination condition index Gztj and the ventilation condition index Tftj are calculated and evaluated to make corresponding management strategies, and the management efficiency of the exhibition site is improved.

The invention discloses efficient drying equipment for wolfberry production and processing, and relates to the technical field of wolfberry processing, the efficient drying equipment comprises a fixing frame, the fixing frame is fixedly connected with a shell, the fixing frame is an I-shaped plate, a placing plate is arranged on the inner side of the fixing frame, and an elastic plate is fixedly connected to the side, close to the fixing frame, of the bottom of the placing plate; a notch is formed in the top of the containing plate, a bottom plate is arranged at the bottom of the containing plate, the elastic plate is a U-shaped plate, the two ends of the elastic plate are fixedly connected with the containing plate and the bottom plate, and an extension pipe is fixedly connected to the side, close to the notch, of the bottom plate. According to the efficient drying equipment for Chinese wolfberry production and processing, the placement plate and the bottom plate are arranged on the upper layer and the lower layer, the space between the placement plate and the bottom plate and the existence of the elastic plates are beneficial for increasing channels and spaces for air circulation, and hot air can flow between the placement plate and the bottom plate more smoothly when passing through the placement plate, so that the hot air better penetrates through a Chinese wolfberry layer, and the drying efficiency is improved. The heat transfer efficiency is improved, and the drying speed of wolfberries is increased.

The invention discloses a bipolar plate for a water electrolyser with an annular water inlet, and relates to the technical field of water electrolysis hydrogen production, the bipolar plate comprises a pole frame area and a pole plate reaction area, the pole frame area is internally provided with an electrolyte flow field, a diversion trench, a liquid inlet and a liquid outlet, and the electrolyte flow field is of an annular structure surrounding the center of the bipolar plate; the annular structure enables water flow to uniformly enter each area of the polar plate reaction area through the diversion trenches, an annular flow channel is arranged on the outer side of the liquid inlet and is divided into an inner flow channel and an outer flow channel, the outer flow channel is communicated with the liquid inlet, and the diversion trenches communicated with the inner flow channel are uniformly distributed in the inner flow channel. The water inlets are arranged around the bipolar plate, so that water flow is uniformly distributed, the cooling efficiency is improved, the phenomenon of local overheating or insufficient cooling is reduced, the electrolyte is uniformly distributed on active sites on the surface of the motor, the electrolytic efficiency of the electrolytic water tank is improved under the high current density, and the device is suitable for various electrolytic tank systems; and the universality and the adaptability are improved.

The invention relates to the technical field of medical instruments, and discloses an interventional drainage shunt tube with a slit valve. The catheter comprises a catheter body of a tubular structure, the catheter body comprises a far-end part provided with an inlet, a near-end part arranged as a blind end and an inner cavity communicating the far-end part and the near-end part, and a slit valve is arranged on the peripheral wall, close to the blind end, of the near-end part. The slit valve is opened through the pressure difference between the ventricular system and the venous system to discharge cerebrospinal fluid from the ventricular system to the venous system, and the distance 10 between the end, close to the blind end, of the slit valve and the blind end in the axial direction meets # imgabs0 #, so that the situation that excessive gas remains in the drainage shunt tube, and consequently the drainage shunt tube is completely blocked and fails is avoided. According to the drainage shunt tube, gas residues in the blind end of the shunt tube can be reduced, and stable drainage of the shunt tube can be ensured, so that the safety and the stability of the drainage shunt tube are improved.

The invention discloses a flange cylinder piece pre-forging and finish-forging integrated die and a forming method, and belongs to the technical field of die forging forming. The die comprises a press rod, a side male die, an upper die body, a lower die body, a lower die core and a push rod; the side male die and the lower die are respectively positioned on the upper and lower surfaces of the upper die; the top of the side male die is provided with a first through hole, and the bottom is provided with a second through hole. The press rod can vertically pass through the first through hole and the second through hole; the push rod is slidably connected to the end face, away from the upper mold, of the lower mold and connected with the lower mold core so that the lower mold core can move in a lower mold cavity of the lower mold, an upper mold cavity of the upper mold and the second through hole. During pre-forging, both the lower mold core and the press rod forge and press the initial blank, so that the initial blank forms a finish-forged blank; after the side male die is opened, the lower die core and the press rod drive a finish forging blank to move downwards; according to the method, the production process can be simplified and the production period can be shortened on the basis of ensuring the size precision and the forming quality of forging forming.

The application relates to a connecting structure of a heat-insulated oil pipe and belongs to the technical field of heat-insulated oil pipes, which comprises an oil pipe, the oil pipe comprises an outer pipe and an inner pipe, the inner pipe is located in the inner part of the outer pipe, a heat-insulated cavity is formed between the outer pipe and the inner pipe, aerogel is filled in the heat-insulated cavity, the end parts of two sections of the inner pipe are fixedly connected through a threaded connection assembly, the end parts of two sections of the outer pipe are provided with heat-insulated connecting sleeve pipes, and the two ends of the heat-insulated connecting sleeve pipes are fixedly provided with plug-in rings. The heat-insulated ring on the plug-in ring of the end part of the heat-insulated connecting sleeve pipe is tightly abutted against the end part of the outer pipe, heat transfer of the connecting gap of the outer pipe can be blocked, the flowability of hot oil in the inner pipe is prevented from being deteriorated, the gap at the connecting position of the two sections of the double-layer heat-insulated oil pipe can be sealed and filled, heat loss from the gap at the connecting position of the two sections of the double-layer heat-insulated oil pipe is prevented, the heat-insulating effect of the connected heat-insulated oil pipe is ensured, and the flowability of oil is prevented from being affected.

The invention relates to the technical field of beverage mixing and homogenizing, and particularly discloses a beverage homogenizing and feeding device which comprises a barrel body, a cover body and supporting legs which are fixedly connected to the upper end and the lower end of the barrel body respectively, a plurality of feeding ports formed in the upper end of the cover body, and a stirring assembly arranged in the barrel body, a discharging port is formed in the lower end of the barrel body, and a Venturi mixing part is fixedly connected to the lower end of the barrel body; the feeding end of the venturi mixing part is communicated with the discharging opening, and the diffusion end of the venturi mixing part is fixedly connected with a discharging pipe. Through the arrangement of the stirring assembly, the venturi mixing part, the flow dividing, refining and homogenizing unit, the internal circulation flow unit, the particle dispersing unit and the stirring cooperation unit, the problems that in the prior art, under the action of shearing force generated by a stirring rod rotating at a high speed, an emulsifying structure wrapping flavor oil drops of fruit juice drinks is prone to being damaged, and the flavor oil drops are prone to being damaged are solved. If the rotating speed of the stirring rod is reduced, the loss of partial flavor of the beverage can be reduced, but the homogeneous mixing efficiency is reduced.

The invention discloses an extraction device and an extraction method of star anise essential oil, and belongs to the technical field of vegetable oil extraction. The extraction device provided by the invention comprises a round-bottom flask, an air condensation pipe, a distillation head, a condensation pipe, a receiving pipe and a receiving bottle, the opening of the round-bottom flask is connected with the bottom of the air condensation pipe; the top of the air condensation pipe is connected with a bottom end pipe of the distillation head; a side end pipe of the distillation head is connected with the top of the condensation pipe; the bottom of the condensation pipe is connected with the top of the receiving pipe; inserting the tail part of the receiving tube into a receiving bottle; and a polymeric membrane is loaded at the top of the air condensation pipe. According to the extraction device and the extraction method of the star anise essential oil, the problems of long time consumption, large steam consumption and high energy consumption in a traditional extraction process are solved, and meanwhile, the extraction rate of the star anise oil and the extraction rate of the effective component anethole are greatly improved.

The application discloses a kind of marine carbon fiber warp knits and its preparation method application, carbon fiber reinforced resin composite material, belong to carbon fiber composite material technical field, solve the problem of existing technology in the forming of ship large curved surface workpiece Fabric is easy to shrink, resin infiltration efficiency is low.The marine carbon fiber warp knits includes at least two carbon fiber yarn sheets, the carbon fiber yarn sheet is formed by carbon fiber yarn spread yarn flat cross section;At least two carbon fiber yarn sheets are stacked along the thickness direction, and the lay angle of adjacent carbon fiber yarn sheet constitutes asymmetric lay structure;The carbon fiber yarn sheet is stitched by warp knitting thread, and the stitching density of the warp knitting thread is 8-14 roots / inch.The marine carbon fiber warp knits can realize width variation <5mm, resin rapid and uniform infiltration, improve the forming quality and efficiency of ship large curved surface workpiece.

The utility model discloses a restraining glove for promoting blood flow of an upper limb, which can restrain the hand, can fix the position and posture of the upper limb, and can promote the blood of the upper limb to flow circularly in a massage manner. According to the technical scheme, the glove is characterized by comprising a hand glove body, an upper limb glove body and a fastener, the hand glove body is fixedly connected with one end of the upper limb glove body, the hand glove body is internally communicated with the upper limb glove body, the side wall of the upper limb glove body is provided with an open groove allowing the forearm and the hand to be placed therein, the open groove is formed in the length direction of the upper limb glove body, and the fastener is arranged on the upper limb glove body. A sealing assembly is arranged at the position of the open groove, and the buckling device is arranged on the surface of the upper limb sleeve body and detachably connected to the bedrail or the bed frame. A plurality of air bags are arranged on the inner side of the upper limb sleeve body, the upper limb sleeve further comprises a control assembly used for regularly expanding or shrinking the air bags, the reciprocating massage function on the forearm is achieved through the control assembly, and the problems of discomfort caused when the upper limb is restrained and unsmooth blood flow are solved.

The utility model relates to the technical field of coating devices, and discloses a rotatable efficient cutter coating device which comprises a body, a door plate is rotatably connected to the left side of the inner wall of the front end of the body, target materials are fixedly connected to the inner walls of the left end and the right end of the body, and air dryers are arranged on the left side and the right side of the top end of the body. Sliding rails are fixedly connected to the left side and the right side of the bottom end of the inner wall of the body, sliding blocks are slidably connected to the inner walls of the top ends of the sliding rails, and protective covers are fixedly connected to the middles of the top ends of the sliding blocks. According to the utility model, after the cutter is fixed in the clamp, the first motor drives the first driving gear and the driven gear to rotate through the rotating shaft, so that the fixed rod is driven to rotate and revolve, the film thickness difference between the cutters on the same fixed rod is reduced, the coating on the surface of the cutter is more uniform, and the coating quality is improved; the service life of the cutter is prolonged, and the coating efficiency is improved.

The present invention discloses a tea oil seed pressing device for tea oil production, the present invention relates to the technical field of presses, comprising a cylinder, the cylinder is located in the middle of the top of a moving component, a trapezoidal groove is provided on the outer side of the cylinder, a spring plate is provided inside the trapezoidal groove, and the two ends of the spring plate are located inside two adjacent trapezoidal grooves, a connecting ring is fixedly connected to the end of the cylinder, the connecting ring is symmetrically arranged with the cylinder as the center, the connecting ring is fixedly connected to the spring plate, a square hole is provided on the outer side of the cylinder, the square hole and the trapezoidal groove are evenly distributed on the cylinder, and a round rod is provided in the middle of the trapezoidal groove. The tea oil seed pressing device for tea oil production is slightly deformed outward by the trapezoidal groove of the cylinder, and fits tightly with the internal spring plate, and the gap at the trapezoidal groove becomes smaller under the limit of the spring plates on both sides, thereby being able to filter out debris more effectively, and being able to reduce the retention and disorderly flow of oil inside the pressing device, so that the oil flows out faster, and the oil output efficiency is improved.

The invention relates to a casting system and a casting process for aluminum alloy castings, and relates to the technical field of casting of metal castings, the casting system comprises a fixing frame, a casting tank fixed to the fixing frame, two agent storage barrels and a plurality of agent feeding pipes, and the agent storage barrels and the agent feeding pipes are fixed to the casting tank; the agent storage barrel on the right side is a thickening agent feeding tank, the agent feeding pipes are divided into two groups, the two groups of agent feeding pipes are symmetrically distributed on the casting tank, the agent feeding pipes on the left side are defoaming agent feeding pipes, and the agent feeding pipes on the right side are thickening agent feeding pipes; the casting tank is provided with a processing mechanism used for stirring and forming casting liquid, and the processing mechanism comprises a stirring part and a mold part. The adding amount and the adding speed of the defoaming agent and the thickening agent can be controlled according to the viscosity and the temperature of the casting liquid in different height directions of the casting tank, the defoaming agent and the thickening agent can be added to different height positions of the casting tank, and the defoaming and improving effects of the casting liquid are guaranteed.

This utility model discloses a waterproof and dustproof high-pressure safety valve for gas, including a housing, a guide seat, a valve, a filter assembly, and a valve seat. The housing has an inlet at its lower end and an outlet along its circumference. This structure adopts a bottom-in, side-out approach, with multiple outlets to improve exhaust efficiency. The guide seat and valve are located inside the housing, with the guide seat slidably connected to the inner wall of the housing. The valve seat is located at the lower end of the housing, with the upper end of the valve corresponding to the lower end of the guide seat. The valve and valve seat slide in contact, and the lower end of the valve corresponds to the flow channel of the valve seat. An exhaust chamber is located inside the housing, connected to the outlet along the circumference of the housing. An elastic sealing ring is provided on the inner wall of the exhaust chamber. Through optimized structural design and sealing performance, this valve solves the problems of leakage and jamming that may occur with traditional safety valves in special environments, improving safety and service life, and providing a guarantee for the long-term stable operation of industrial equipment.

The utility model discloses a stackable full-immersion energy storage device which comprises a compartment body and a battery assembly installed in the compartment body. The battery assembly comprises at least one layer of battery pack; each layer of battery pack comprises a column of battery monomers arranged along the X direction, and tabs are respectively arranged on the front end surfaces and the rear end surfaces, vertical to the Y direction, of the battery monomers; a front temperature control flow channel, a rear temperature control flow channel, a left temperature control flow channel and a right temperature control flow channel which are mutually independent are respectively arranged between the front end surface, the rear end surface, the left side surface and the right side surface of the battery assembly and the compartment body; the front temperature control flow channel, the rear temperature control flow channel, the left temperature control flow channel and the right temperature control flow channel penetrate through the upper end and the lower end of the battery assembly; a gap is formed between every two adjacent battery monomers belonging to the same layer of battery packs, and a gap channel is formed in the battery assembly and penetrates through the upper end and the lower end of the battery assembly. And flowability control is carried out on different runners, so that the temperature control performance and the temperature equalization performance are improved.

This invention discloses a precision-controlled, leak-proof spiral extrusion adhesive supply device, relating to the field of adhesive bonding and processing technology. It includes an extruder body, a material control actuator, an anti-overflow and leak-proof sealing mechanism, an adaptive cleaning and mixing component, and a spiral extrusion conveying mechanism. The extruder body has an extrusion terminal box at the front end, housing the anti-overflow and leak-proof sealing mechanism, and a power drive box at the rear end. A PLC main control panel is located at the front end, housing the spiral extrusion conveying mechanism. A premixing and mixing treatment box is located at the top, equipped with a feed guide groove and a toothed disc protective box. An adaptive cleaning and mixing component is built-in, achieving mixing and cleaning of the bin walls through meshing transmission. The material control actuator connects the premixing box and the extruder, and includes a transition box, a material control and resistance adjustment plate, etc., to adjust the feed rate and homogenize the adhesive. The spiral extrusion conveying mechanism includes a conveying cylinder with a tapered front end, working in conjunction with a conveying auger and featuring flow monitoring. The anti-overflow and leak-proof sealing mechanism uses a transmission-controlled arc-shaped baffle for sealing, adaptable to different adhesives.

This invention relates to a high-temperature resistant, room-temperature curing anti-corrosion coating and its preparation method. The high-temperature resistant, room-temperature curing anti-corrosion coating includes component A and component B. Component A includes epoxy resin, small molecule hydroxyl compounds, additives, and inorganic fillers. Component B includes a curing agent. The epoxy resin includes phenolic epoxy resin, which includes various phenolic epoxy resins with different viscosity gradients. The coating of this invention, by using phenolic epoxy resins with different viscosity gradients, can improve the adhesion between the coating and oil pipeline materials, and also improves the resistance to different temperatures and humidity levels. It has strong adhesion to oil pipelines, is easy to apply, and possesses a variety of excellent properties such as high solids content, impermeability, corrosion resistance, high temperature resistance, and thermal stress resistance. It can be applied in harsh environments such as alternating high and low temperatures, alternating dry and wet conditions, alternating strong acids and alkalis, and high abrasion, and is suitable for long-term corrosion protection of oil pipelines.

The utility model relates to the technical field of necked water bags of smelting furnaces, and aims to solve the problems that the existing necked water bag of the smelting furnace is directly attached to the inner wall of the smelting furnace, the flowing path, speed and the like of molten glass can be changed by a crack and an attached included angle, and the homogenization and clarification processes of the molten glass are further influenced. The utility model provides a smelting furnace neck water bag which comprises a body, a connecting arm, a buffer plate and a sealing assembly. The partition plate is attached to the side wall of the body. The sealing assembly is arranged on the buffer plate in a covering manner; one end of the sealing assembly is connected with the connecting arm; the other end of the sealing assembly is connected with the body; according to the utility model, the body can be protected through the buffer plate, abrasion during installation is reduced, and molten glass can be prevented from flowing into a crack between the body and the inner wall of the furnace body through the sealing assembly, so that the flowing path and speed of the molten glass are avoided, and the homogenization and clarification effects of the molten glass are improved.

This utility model discloses a material filtering device for an injection molding machine, including a filter cylinder. The filter cylinder has multiple inclined filter screens arranged from top to bottom inside. The filter cylinder has a standard material outlet that connects to the bottom of the lowest filter screen, and the standard material outlet is connected to a vertically downward feeding pipe. The bottom of the filter cylinder has a suction pipe, and the top of the filter cylinder has a strip-shaped feed inlet. Ionizing air bars are installed on both sides of the feed inlet in the upper part of the inner cavity of the filter cylinder. The suction pipe is connected to an external negative pressure fan. This utility model uses ionizing air bars to generate ions to eliminate static electricity in the plastic particles, thus preventing fine particles and dust from adhering to the plastic particles and mixing into the injection molding machine. The negative pressure adsorption also removes dust and debris generated during the collision of the plastic shell, preventing fine particles from causing uneven melt flow or surface pitting.

The invention relates to the technical field of air treatment, and discloses air treatment equipment which comprises a shell provided with a second air outlet; the second swing blade assembly is arranged at the second air outlet and comprises a second synchronous plate and a plurality of second swing blades; the two ends of each second swing blade are arranged in a pivoted mode, each second swing blade is provided with a second synchronous shaft, and all the second synchronous shafts are connected to a second synchronous plate. The linkage assembly comprises a key part and a pushing part; the key part can be pressed and rebounded, and is connected to the second synchronous plate through the pushing part; when the key part is pressed or rebounded, the second synchronous plate is driven to move through the pushing part, and then all the second swing blades are driven to rotate synchronously through the second synchronous plate, so that the second air outlet is shielded or avoided.

The utility model discloses a kind of heat exchangers of cyclone support structure, it is related to heat exchanger equipment technical field, including shell, vertical setting;Pipe plate, set in the both ends of shell, the shell one end between two pipe plates is equipped with cold fluid medium import, and the other end is equipped with cold fluid medium export;Multiple heat exchange tubes, its both ends are fixed between pipe plate and are penetrated;Upper head, lower head, respectively sealed connection in the both sides opening of shell, the both ends of each heat exchange tube are all corresponding to connect upper head and lower head, and upper head is equipped with hot fluid medium import, and lower head is equipped with hot fluid medium export;Multiple cyclone components, along axial interval setting between two pipe plates, each heat exchange tube is all through cyclone component, and structure unit that can produce fluid cyclone effect is equipped in cyclone component;Support, set in the peripheral surface of shell.The above-mentioned heat exchanger of cyclone support structure, structure simple, manufacturing cost low, technical effect of high heat exchange efficiency are realized.

The invention discloses a gear transmission device for a rotary recreation facility. The gear transmission device comprises a rotary table, a gear ring, a base and a transmission component. The transmission component comprises a plurality of driving mechanisms, a speed reducing mechanism and a plurality of transmission shafts; the speed reducing mechanism comprises a driving motor, a driving gear and a plurality of speed reducing gears, an oil storage bin and a collecting bin are arranged in each driving mechanism, a coating brush is arranged in each oil storage bin, a cleaning brush is arranged in each collecting bin, and a driving shaft is arranged at one end of each coating brush and one end of each cleaning brush; and a meshing gear is rotationally mounted in each driving mechanism. According to the device, the gear ring is uniformly driven through the multiple driving mechanisms, and the coating roller is matched to smear lubricating grease on the meshing surface of the gear ring, so that the working pressure of the rack on the gear ring is shared, the transmission stability of the meshing gear is effectively guaranteed, safety accidents caused by gear failure can be avoided, and then safe operation of recreation facilities is guaranteed.

The invention relates to the technical field of powder metallurgy product machining equipment, in particular to oiling equipment for powder metallurgy products. Comprising a rack; the outer wall of the oil hydraulic cylinder is fixedly connected with the inner side wall of the rack; the outer wall of the top of the limiting cover is fixedly connected with the output end of the oil hydraulic cylinder; the outer wall of the oil storage tank is fixedly connected with the outer wall of the rack; the outer wall of the placing plate is fixedly connected with the outer wall of the oil storage tank; the outer wall of the screening device is fixedly connected with the outer wall of the oil storage tank; the outer wall of the containing device is slidably connected with the inner wall of the limiting cover, the oil passing efficiency is improved by arranging the screening device, after an air cylinder of the screening device is started, the air cylinder pushes a pushing rod to move, the pushing rod drives a sliding block to slide on an arc-shaped supporting plate, oil liquid for oil passing is stirred, and the oil passing efficiency is improved; and the purpose of oil treatment of the powder metallurgy product is achieved.

This utility model provides a double-wing stationary contact assembly for a switch machine, relating to the field of switch machine technology. The double-wing stationary contact assembly includes: a base with at least two slots; and a contact assembly disposed at the slots. The contact assembly includes a contact piece and a contact post connected together. The contact piece includes a first contact piece and a second contact piece, with the second contact piece disposed outside the first contact piece. The first contact piece includes an arc segment and a first connecting segment. The second contact piece includes a bent segment and a second connecting segment, with the arc segment disposed within the bent segment. The first connecting segment and the second connecting segment are stacked. This stationary contact assembly solves the problems of low reliability, easy arc erosion, and poor self-cleaning ability of existing stationary contact assemblies due to single-wing contact.

The utility model discloses high-precision glue dispensing equipment for the surface of a printed circuit board. The high-precision glue dispensing equipment comprises a rack, a conveying belt, a transverse moving mechanism, a mechanical arm, a CCD (Charge Coupled Device) positioning camera, a glue dispensing assembly, a longitudinal moving mechanism, a CCD detection camera and a UV (Ultraviolet) irradiation assembly, the CCD positioning camera and the dispensing assembly are connected with the mechanical arm, and the longitudinal moving mechanism is connected with the CCD detection camera. The conveying belt can convey the printed circuit board to a dispensing station area along the line, the CCD positioning camera can detect the position of an area to be dispensed on the printed circuit board, and the dispensing assembly can accurately dispense glue at a required position according to position information provided by the CCD positioning camera; after glue dispensing is completed, the CCD detection camera can detect the glue dispensing position, and glue dispensing defects and defective products are avoided; in the dispensing and detecting process, the UV irradiation assembly can conduct UV curing on the dispensing position on the printed circuit board, and glue is prevented from flowing or deforming in the conveying process.

The invention provides a reinforcing device and method for granular soil, and relates to the technical field of grouting reinforcement, the reinforcing device is characterized in that inlet and outlet pipes are arranged at the two ends of a pipe wall structure, one end of each inlet and outlet pipe is connected with the pipe wall structure, and a water stop valve is arranged at the other end of each inlet and outlet pipe; one end of the conveying structure sequentially penetrates through the water stop valve and the inlet and outlet pipe to extend into the pipe wall structure. The multiple filtering layers are arranged at the top and the bottom of the pipe wall structure, a porous water seepage layer is arranged between the two filtering layers and arranged in the circumferential direction of the inner wall of the pipe wall structure, the interior of the porous water seepage layer is used for being filled with granular soil, and the conveying structure conveys grouting liquid into the pipe wall structure. And grouting liquid uniformly permeates into the granular soil body through the filtering layer and the porous water seepage layer and reinforces the granular soil body. The problem that in the prior art, a soil body is reinforced to a certain degree, but soil body particles are basically pulverized into a muddy state, so that the soil body reinforcing effect is poor is solved.