31results about How to "Improve gravel effect" patented technology

The invention provides a mud water circulation and stone crushing system for a shield tunneling machine. The system comprises a mud incoming pipe, an air cushion bin, a discharge pipe, a mud line crusher, a mud discharge pump and a mud discharge pipe which are connected in series successively. The discharge pipe is used for conveying mud and gravels from the air cushion bin to the mud line crusher; the mud line crusher crushes the gravels from the air cushion bin; the mud line crusher is a mud fluid closed jaw crusher comprising a seal pad, a frame and a moving jaw assembly and having an interior sealable pressure up to above 0.5Mpa. The system is better than a hydraulic jaw crusher in the air cushion bin of the shield tunneling machine in terms of crushing capacity, service life and reliability; the problems that an existing shield tunneling machine experiences delayed discharge and pipe jamming in water-rich sand cobble are solved; by mounting the system on a trailer, personnel needs to enter the bin with pressure for maintenance fewer times, application cost and construction risk of the shield tunneling machine are decreased, and geological adaptability and tunneling efficiency of the shield tunneling machine are improved.

The invention relates to a well-drilling device with a cooling function and the high well-drilling efficiency based on the Internet of Things. The well-drilling device comprises a drilling rod and a cutting head. The bottom end of the drilling rod is fixedly connected with the top end of the drilling head; a cooling mechanism and an impact mechanism are arranged in the drilling rod; the impact mechanism comprises an impact hole, a bottom cover, a sliding rod, an impact block and two power assemblies; the cooling mechanism comprises a gas inlet assembly, a cooling pipe, a first one-way valve and a gas outlet pipe; and the gas inlet assembly comprises a gas inlet pipe, a circulating tank, a gas collecting pipe, a second one-way valve, a piston, a connecting rod, a rotating disc, a rotating shaft and a first motor. According to the well-drilling device with the cooling function and the high well-drilling efficiency based on the Internet of Things, the stone crushing capability of the well-drilling device is strengthened through the impact mechanism, and the drilling efficiency is improved; and in addition, the temperature of the well-drilling device is further reduced through the cooling mechanism, and the situation that the well-drilling efficiency is affected due to the overhigh temperature of the well-drilling device is avoided.

The invention relates to the technical field of extracorporeal lithotripter, in particular to an extracorporeal lithotripter and a double-head shock wave source thereof. The double-head shock wave source comprises a first shock wave source and a second shock wave source, focal points of the first shock wave source and the second shock wave source are coincided, and an included angle between a shock wave direction of the first shock wave source and a shock wave direction of the second shock wave source is adjustable. The extracorporeal lithotripter and the double-head shock wave source thereofhave advantages that lithotripsy efficiency can be improved, treatment time is shortened, and treatment frequency is decreased; by energy dispersion of shock waves passing through body tissues, injuries to kidney tissues are reduced, so that kidney injuries are reduced, and pains and complications of patients are reduced; the included angle of the shock wave sources can be adjusted aiming at different body types, so that the shock wave source can better fit bodies of the patients, and lithotripsy effects are improved.

The invention provides a slurry pipeline crusher used in a shield machine. The slurry pipeline crusher is a closed slurry fluid jaw crusher with the inside having a sealed pressure reaching above 0.5MPa, and the slurry pipeline crusher comprises a frame, a movable jaw assembly, sealing gaskets, a fixed jaw plate positioned in the frame, and a motor driving assembly and a belt positioned outside the frame, wherein the frame, the movable jaw assembly and the sealing gaskets form an internal sealing space; the motor driving assembly and the belt are used for driving the movable jaw assembly to carry out compound pendulum extruding motion relative to the fixed jaw plate in order to extrude and crush bones between the movable jaw assembly and the fixed jaw plate; and the movable jaw assembly comprises an eccentric shaft arranged on the frame and a movable jaw plate positioned in the frame, and a rotation seal is formed between the movable jaw assembly and the frame. The slurry pipeline crusher has strong crushing ability and good maintainability, and can provide high-pressure crushing sealing environment.

The invention relates to the technical field of calculus treatment, in particular to a calculus removing apparatus for lithangiuria in urology. The calculus removing apparatus comprises a calculus removing pipe and a calculus removing head, wherein the calculus removing head is arranged at one end of the calculus removing pipe, an accommodating bag is arranged at the other end of the calculus removing pipe, a calculus falling passage is formed in the middle position of the inner part of the calculus removing pipe, and the accommodating bag communicates with the inner part of the calculus falling passage; and the calculus removing head comprises two shells which are symmetrically arranged, and expanding and contracting connecting pieces connected with the two shells, and a calculus breakingelectrode is also mounted on the inner side of each shell. According to the calculus removing apparatus disclosed by the invention, the calculus removing pipe extends into the urethra of a patient, the calculus removing head is used for breaking calculi, and the broken calculi slide into the inner part of the accommodating bag for storage along the calculus falling passage; in the calculus removing process, thread sleeves are driven by rotating shafts to move, and further through cooperation between first connecting members and second connecting members, the shells are driven to open and close, so that the calculus removing head can be suitable for calculi of different sizes, the calculus breaking electrodes are guaranteed to be closely attached to the calculi, and the calculus breaking effect can be improved.

The invention discloses a drilling type extractor for calculi in a digestive tract. The drilling type extractor comprises a handle, a driving mechanism, a crushing mechanism, a connecting rod, a sliding mechanism, a sleeve body and a clamping mechanism. In use of the drilling type extractor, a medical worker uses the clamping mechanism to clamp and fix a calculus and then uses the crushing mechanism to successively drill and grind the calculus, so the medical worker can conveniently smash the calculus with a large size in the body of a patient; and therefore, calculus smashing effect is improved and the treatment progress of the patient is accelerated in virtue of the drilling type extractor.

The invention belongs to the field of civil engineering mechanical equipment, and particularly relates to an efficient stone crushing and screening device for constructional engineering. The efficientstone crushing and screening device for constructional engineering comprises a device shell body, the upper end of the device shell body is communicated with a feeding hopper, a first motor is installed on the inner bottom face of the device shell body, a stone crushing barrel body is rotatably connected to the inner side wall of the device shell body, the center of the bottom of the stone crushing barrel body is sunken downwards and is fixedly communicated with a discharging pipe, the lower end of the discharging pipe penetrates through the bottom face of the device shell body and is rotationally connected with the device shell body, the first motor is in transmission connection with the stone crushing barrel body, a second motor is installed at the upper end of the device shell body, and vibrating blocks are arranged in the stone crushing barrel body. According to the efficient stone crushing and screening device for constructional engineering, crushing can be carried out through collision among all stones and repeated collision of the vibrating blocks, so that the crushing effect is good, and the efficiency is high; and small stones obtained after crushing is completed are screened out through the centrifugal force of rotation of the crushing barrel body, so that the sizes of the stones are uniform, and the quality of civil engineering construction is guaranteed.

The invention discloses a calculus removing water jet scalpel lithotripsy mesh basket for a duodenoscope, and belongs to the technical field of medical instrument manufacturing. The calculus removingwater jet scalpel lithotripsy mesh basket is composed of a scalpel head, a tube body and a mesh basket body. The scalpel head is made of nickel-titanium alloy and is cylindrical, a water injection channel and a mesh basket wire channel are formed in the scalpel head, water outlets in the upper surface, which is an arc-shaped concave surface, of the scalpel head are annularly arranged, an opening of the mesh basket wire channel is formed in the side wall of the head end, and four mesh basket steel wires are arranged in the mesh basket wire channel; and the center of the bottom surface of the scalpel head is an arc-shaped concave surface, and the concave surface is provided with annularly-arranged water inlets and four mesh basket wire holes. The tube body is a single-channel tube, a mesh basket connecting rod and a high-pressure water tube penetrate through the interior of the tube body, the mesh basket connecting rod is connected with the mesh basket steel wires, the high-pressure water tube is divided into two layers, the inner layer is an aluminum-magnesium alloy tube, and the outer layer is a steel wire tube spirally wound outside the aluminum-magnesium alloy tube. A connector is a single-channel hard steel tube, and a spiral is arranged outside the tube wall and communicates with the high-pressure water tube. The calculus removing water jet scalpel lithotripsy mesh basket has the advantages that the calculus removing water jet scalpel lithotripsy mesh basket is suitable for lithotripsy of all calculi, the calculi can be fixed, broken calculus discharge is promoted, andthe safety is improved.

The invention discloses a device for bridge construction. The device comprises a machine seat and a stone crusher installed in the machine seat. The stone crusher is internally provided with a crushing portion, the inner top wall on the right side of the crushing portion is provided with a stone inlet in a penetrated manner, and the inner bottom wall on the left side of the crushing portion is internally provided with a movement guide cavity. The position, on the right side of the movement guide cavity, of the inner bottom wall of the crushing portion is internally provided with a lower discharging opening in a penetrated manner, and the top of the lower discharging opening is provided with a conical groove. The movement guide cavity is internally connected with a rising-landing slippage block extending upwards in a slippage fit manner, the extending segment at the top of the rising-landing slippage block stretches into the crushing portion, and the top, stretching into the crushing portion, of the rising-landing slippage block is provided with an arc surface extending in the lower right direction. The movement guide cavity under the bottom of the rising-landing slippage block is internally provided with first elastic pieces, the inner wall on the left side of the crushing portion is internally provided with a transfer groove, the inner top wall on the left side of the transfer groove is internally provided with a square groove in a connected manner, and right side of the transfer groove is internally provided with a first movement guide groove extending vertically in a penetrated manner. The device is simple in structure and convenient to operate, the crushing effect of hardened fertilizer is improved, the amount of labor is reduced, and stone crushing uniformity is improved.

The invention discloses a lithangiuria calculus removal device used in the urinary surgery. The lithangiuria calculus removal device comprises a calculus removal cannula, a guiding wire and a calculuscrushing electrode, wherein an operating base is arranged at the head end of the calculus removal cannula; an oblique passage tube is arranged on the calculus removal cannula; the head end of the oblique passage tube obliques towards the operating base; a guiding tube is embedded in the calculus removal cannula; the inner cavity of the oblique passage tube communicates with the guiding tube; a push-and-pull handle is arranged on the operating base; one end of the guiding wire penetrates through the calculus removal cannula to be connected with the push-and-pull handle; the other end of the guiding wire is connected with a calculus removal cord net; and the calculus crushing electrode enters the guiding tube through the oblique passage tube and stretches out of the calculus removal cannula. The lithangiuria calculus removal device greatly improves removal of larger calculus in a urethra, is simple in operation, shortens the operation time to alleviate the pain of a patient and is a more ideal lithangiuria calculus removal device used in the urinary surgery.

The invention discloses a full-automatic slag-crushing device, which consists of a rack (1) and a transmission platform (2). The transmission platform (2) is arranged on the rack (1), one side of thetransmission platform (2) is provided with a transmission claw mechanism, the other side of the transmission platform (2) is provided with a slag-crushing mechanism, and a transmission mechanism is arranged below the transmission platform (2). Vessels filled with slag materials can be transported to the transmission platform (2) by the transmission claw mechanism and moved to the slag-crushing mechanism by the transmission mechanism at intervals, the slag-crushing mechanism processes the slag materials in a crushing mode, and thereby the slag materials are effectively crushed, labor intensityis reduced and production efficiency is improved. The full-automatic slag-crushing device is portable in structure, easy to operate, low in power consumption and small in labor intensity.

The invention relates to a stone crusher in the technical field of processing of building materials and particularly relates to a stone crushing hammer for the stone crusher. The stone crushing hammer comprises a hammer handle and a hammer head and is characterized in that the hammer head is in a round-platform shape; the hammer handle is vertically arranged at the central position of the upper part of the hammer head and is provided with a buffering block; the cross section of the hammer handle is square-shaped; the two wider opposite surfaces of the hammer handle are provided with sliding grooves which are matched with the buffering block in a sliding manner; the sliding grooves are internally provided with convex teeth at intervals; and the quantity of the convex teeth positioned at the tail end of the hammer handle is more than that of the convex teeth positioned at the front end of the hammer handle. The stone crushing hammer adopting the technical scheme has the advantages that the wear can be reduced, the buffering can be carried out on the impact energy and the stone crushing efficiency can be improved.

The invention provides an in-vivo electrohydraulic lithotripter circuit and a pulse discharge lithotripsy method, and relates to the technical field of medicinal electronic equipment. The in-vivo electrohydraulic lithotripter circuit comprises a control module and a charge module, wherein the control module comprises a hybrid reinforced pulse discharge control unit; the control module is used for controlling the charge module to charge and discharge power through the hybrid reinforced pulse discharge control unit. The in-vivo electrohydraulic lithotripter circuit provided by the invention adopts the control circuit for positioning, stone can be relatively precisely positioned, proper pulse electric shock can be output from the control module of the in-vivo electrohydraulic lithotripter circuit according to sizes and properties of the stone, and non-disease parts of patients are relatively slightly damaged. On the basis, the invention further provides the pulse discharge lithotripsy method.

The invention discloses a smelting furnace feeding device capable of removing dust. The smelting furnace feeding device can clear dust and broken stones generated in a feeding process, can continuously feed a smelting furnace in batches, is good in continuity, and does not influence the smelting quality of the smelting furnace. The smelting furnace feeding device is technically characterized by comprising a material distributing mechanism and a dust removal mechanism, wherein the material distributing mechanism comprises a material distributing bottom plate, a rotary material distributing piece, a driving structure, a feeding structure and a discharging structure, the rotary material distributing piece is annularly provided with a plurality of conveying bins at equal intervals, the material distributing bottom plate is provided with an outlet used for discharging, the outlet is connected with the discharging structure, the material distributing bottom plate can cover lower openings of the multiple conveying bins, the dust removal mechanism comprises multiple dust suction ports, dust removal channels and a dust collector, the multiple dust suction ports are formed in the bottom face of the rotary material distributing piece, the dust removal channels comprise the first dust removal channel and the second dust removal channel, the first dust removal channel and the second dust removal channel are rotationally connected, and the dust suction ports, the first dust removal channel, the second dust removal channel and the dust collector are sequentially connected.

The invention discloses a bridge device. The bridge device comprises a machine base and a stone crushing machine arranged in the machine base; a fragmentation part is arranged in the stone crushing machine, a stone inlet is formed in the inner top wall of the right side of the fragmentation part, and a guide moving cavity is formed in the inner bottom wall of the left side of the fragmentation part; a lower discharge opening runs through the inner bottom wall of the fragmentation part on the right side of the guide moving cavity, and a conical groove is formed in the top of the lower dischargeopening; a lifting sliding block which extends upwards is connected with the interior of the guide moving cavity in a sliding and matched mode; the extension section of the top of the lifting slidingblock extends into the fragmentation part; the top, extending into the fragmentation part, of the lifting sliding block is provided with an arc-shaped surface extending to the right lower portion; afirst elastic element is arranged at the position, below the bottom of the lifting sliding block, in the guide moving cavity; a transmission groove is formed in the inner wall of the left side of thefragmentation part, a square groove is communicated with the interior of the inner top wall of the left side of the transmission groove, and a first guide moving groove extending up and down runs through the right side of the transmission groove. The bridge device is simple in structure and convenient to operate, improves the crushing effect of hardened fertilizer, reduces the manual workload, andimproves the stone crushing uniformity.