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33results about How to "Increase the lateral area" patented technology

A method for tunnel excavation in high liquid limit soil

The invention discloses a method for excavating a tunnel in high liquid limit soil. The method comprises the following steps of: A, excavating the upper part of the left side of the tunnel; B, performing primary support on an arch crown in the excavated section; C, excavating the upper part of the right side of the tunnel; D, finishing the primary support of the arch crown; E, excavating the lower part of the tunnel, namely a lower left side part, a core soil part and a lower right side part, firstly excavating the lower left side part, secondly excavating the lower right side part, and finally excavating the core soil part; and F, assembling reinforcement on an inverted arch, mounting a template, pouring C25 concrete to finish a second liner of the inverted arch, and backfilling the concrete. In the method, a manual hand-held wind tunnel excavating tool is mainly replaced by an excavator for excavation supplemented by manual modification, so that construction efficiency is greatly improved; the middle core soil part is increased through inverted arch excavation, so that the stability of surrounding rocks in the sealing ring formation process is ensured, and construction safety isgreatly improved; and due to the application of the method, construction efficiency is improved, and construction cost is reduced.
Owner:GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG

Rotary cut-expanded branch pile machine and construction method of cut-expanded branch pile

The invention discloses a rotary cut-expanded branch pile machine and a construction method of a cut-expanded branch pile. The cut-expanded branch pile comprises a drill rod, and a rotary cut-expanding assembly is fixed to the drill rod. The rotary cut-expanding assembly comprises a first force transferring barrel, and a plurality of soil cutting steel plates are hinged to the lower end of the first force transferring barrel. First sliding grooves are formed in the inner walls of the soil cutting steel plates. The lower end of a second force transferring barrel stretches inwards to form a pressing block, and a buckle seat is fixed to a connecting barrel. A spring is mounted on the side wall of the buckle seat, the lower end of the spring and the lower end of a mounting groove are fixed, and the upper end of the spring seat and a buckle are fixedly connected. One end of each connecting rod is fixed into the corresponding first sliding groove, and the other ends of the connecting rods are mounted on the buckle. When the drill bit reaches a target position, the soil cutting steel plates work under the action of a hydraulic component, the rotary speed and angles of the soil cutting steel plates achieve stepless speed change, and finally a tree-shaped branch plate cavity is formed in the same position. Compared with a common branch pile, the formed tree-shaped branch pile has the advantages that the size is larger, and the vertical and transverse axial bearing capacity of a pile foundation is remarkably improved.
Owner:CHANGAN UNIV

Supporting device of coal mining equipment and installation method of device

The invention relates to the technical field of coal mining, and discloses a supporting device of coal mining equipment and an installation method of the device. The supporting device of the coal mining equipment comprises a left base and a right base, wherein a groove is formed in the right end of the left base, the left end of the right base is located in the groove; a rack is welded to the inner bottom of the groove, and a gear is hinged to the left side of the right base; the rack is connected with the gear in a meshing mode, and a lifting platform is fixedly connected to the top of the left base; and a left supporting rod is fixedly connected to the top of the lifting platform, and a force bearing plate is fixedly connected to the top of the left supporting rod. The supporting deviceof the coal mining equipment and the installation method of the device have the advantage of avoiding the roof leakage through a first side plate, a first hydraulic rod, a second side plate and a second hydraulic rod, the first side plate and the second side plate are propped up to be level with the force bearing plate by the first hydraulic rod and the second hydraulic rod correspondingly, the transverse area of the force bearing plate can be increased, the contact surface between the force bearing plate and a coal seam is enabled to be larger, and thus the roof leakage phenomenon is not prone to occurring.
Owner:张辉

Automatic charging system based on image recognition positioning technology, and charging method thereof

The invention discloses an automatic charging system based on the image recognition positioning technology, and a charging method thereof. The system achieves the precise positioning through employing the image recognition and employing a charging signboard for recognizing the fixing position of a charging pile, so as to move a specific position for contact-type charging. The system employs the contact-type charging, and is high in charging efficiency, wherein the charging efficiency can reach 95% or more. The system just can complete the automatic charging with the only need of a printing guideboard and one contact-type charging power supply matched with a robot, so the system is simple in structure and is low in building cost. The lateral area of the contact surface of a contact piece of a robot end is set to be greater than the lateral area of the contact surface of a contact pipe of a charging pile end, i.e., increasing the lateral area of the contact piece of the robot end, thereby reducing the lateral error. The contact piece of the charging pipe is provided with a conductive spring, thereby reducing the distance error. The system provides a reasonable solution to the existing errors, and is simple and reliable.
Owner:广东大仓机器人科技有限公司

Cable tunnel troubleshooting device and cable tunnel troubleshooting method

The invention relates to a cable tunnel troubleshooting device and a cable tunnel troubleshooting method, and belongs to the technical field of cable tunnel troubleshooting devices. The cable tunnel troubleshooting device comprises a body, wherein a walking mechanism, a path drawing system, a cable clamping mechanism, an image acquisition mechanism, a communication system, a control system, an illumination system, a gas analysis system and a fault detection system are arranged on the body; the troubleshooting device is matched with a remote control operation device, and the troubleshooting device is wirelessly connected with the remote control operation device and a background server through the communication system; the cable clamping mechanism comprises a telescopic clamping arm and a clamping claw, the clamping claw is connected with a clamping wheel through a connecting piece, and the clamping wheel rotates through a driving motor; and an adding part is arranged at the rear end of the body, an emergency repairing system is arranged on the adding part and comprises a constant-temperature storage box, a discharging pipe, a discharging head, a pump and a repairing device, one end of the discharging pipe is connected with the discharging head, and the other end of the discharging pipe is connected with the constant-temperature storage box through the pump. The problem that a fault removing device suitable for a cable tunnel is lacked at present is solved.
Owner:LVLIANG POWER SUPPLY COMPANY STATE GRID SHANXI ELECTRIC POWER

Portable water flow velocity measuring device for water conservancy detection

The invention discloses a portable water flow velocity measuring device for water conservancy detection. The device comprises a water flow velocity measuring instrument, a conical balancing weight isarranged below the water flow velocity measuring instrument; a cover plate is fixedly installed at the top of the conical balancing weight, a rectangular hole is formed in the top of the conical balancing weight, a fixing base is fixedly connected to the bottom of the water flow velocity measuring instrument, the bottom of the fixing base extends into the rectangular hole, the cover plate is fixedly arranged on the fixing base in a sleeving mode, and a rectangular box with an opening in the top is arranged in the rectangular hole in a sealed sliding and sleeving mode. The design is reasonable,four spiral drilling blades are arranged; the device is convenient to screw into a river bottom after being put into water, the effect of rooting at the river bottom is achieved, the risk of being flushed away or flushed down by a river is effectively reduced, the stability during the measurement is improved, the four spiral drill ground blades are conveniently stored into the rectangular hole after being used, the phenomenon that people are stabbed or the spiral drill ground blades are broken due to exposure when the spiral drill ground blades are carried or not used is avoided, and the useof the device is facilitated.
Owner:沧州昊海水利工程质量检测有限公司

Screw type atomization-spraying dust precipitating device

The invention discloses a screw type atomization-spraying dust precipitating device applicable to atomization of water or water-air and other media with relatively low viscosity. An upper end cover of the device adopts a cylindrical structure, an external thread is arranged at the upper end part, an air inlet is horizontally formed in the middle of the upper end cover and adopts a bolt hole structure, a screw valve is arranged in the center of the upper end cover, and the screw valve and the center of the upper end cover are located on the same axis; a taper hole is formed in the center inside the screw valve and connected with the air inlet, through holes are formed in positions equally spaced from the periphery of the taper hole and are water inlets, a plurality of screw grooves are arranged on the outer edge of the screw valve and have rectangular sections, and the length-width ratio of the rectangles is gradually increased; the upper end cover and an oscillation cavity at the lower end are connected through bolts; the lower end of the oscillation cavity is connected with a connecting piece through threads, the connecting piece adopts a U-shaped groove structure, a bulge is arranged in the middle of the U-shaped groove, and a horn-shaped spray head is arranged in the center of the bulge. The device is simple in structure, easy to control and adjust, good in atomization effect, high in practicability, safe and reliable.
Owner:TAIYUAN UNIV OF TECH

Method for improving segregation and shrinkage of center of square and round billet

The invention discloses a method for improving the segregation and shrinkage of the center of a square and round billet; when a cast billet is cooled, the growth rate of solidified shells of the cast billet in an inner arc direction and an outer arc direction is relatively higher while the growth rate of solidified shells of the cast billet in a left side direction and a right side direction is relatively lower through a cooling method according to which the cooling strength in the inner arc direction and the outer arc direction of the cast billet is consistent, the cooling strength in the left side direction and the right side direction is consistent but the cooling strength in the inner and the outer arc directions is higher than that in the left and the right side directions, so that a liquid core on a solidified tail end of the cast billet is a rectangular area which is squashed in the inner and the outer arc directions and elongated in the left and the right side directions. According to the method for improving the segregation and shrinkage of the center of the square and round billet, because segregation solute elements and the distribution methods of solidification and shrinkage are controlled, the center of the cast billet is prevented from being segregated and enriched in a small area, so that the segregation and shrinkage of the center of the square and round billet and other continuous casting billets with similar width and thickness of cross sections are effectively improved, the effect is significant and stable, the use is simple and easy, the cost is low, and the cost performance in implementation is high. Simultaneously, a dynamic slight compression technology in continuous casting and a tail end electromagnetic stirring technology can be implemented.
Owner:CHONGQING UNIV

Reaction device for producing and processing synthetic materials

The invention relates to the technical field of synthetic material processing devices, and discloses a reaction device for producing and processing synthetic materials, the reaction device comprises a machine body, the top of the machine body is fixedly connected with a housing, the inner top wall of the housing is fixedly connected with a motor, and an output shaft of the motor is fixedly connected with a rotating shaft through a coupler; a lifting mechanism is fixedly installed at the bottom end of the rotating shaft, a connecting piece is fixedly connected to the outer wall of the housing, a bolt is arranged on one side of the connecting piece, and a sliding rail is fixedly connected to the inner side wall of the machine body. The reaction device for producing and processing of synthetic materials has a complex shape of the mixing spring rubber rod-shaped stirring roller, power is transmitted from the top of the mixed spring to the bottom of the mixed spring, the mixed spring can twist, meanwhile, due to the fact that the mixed spring is extruded, the twisting form of the mixed spring becomes randomized, more complex position changes occur in the stirring process of internal raw materials, the contact rate of the internal raw materials is increased, and the internal raw materials are better stirred.
Owner:九江绿为沃特环保科技有限公司

Chemical oxygen production apparatus

The invention discloses a chemical oxygen production apparatus. The chemical oxygen production apparatus includes a reaction chamber, a hollow rotating rod passes through a top end of the reaction chamber, a feed port passes through an outer side of the hollow rotating rod, a connecting chamber is sleeved on the outer side of the hollow rotating rod, a first feeding tube passes through a side surface of the connecting chamber, the bottom of the hollow rotating rod is fixedly provided with a diverging cavity, a separator plate is embedded in the bottom of the diverging cavity, a through hole passes through the separator plate, the bottom of the inner cavity of the reaction chamber is fixedly provided with a placing seat, the top of the placing seat is fixedly provided with a liquid inlet pipe, the top of the liquid inlet pipe is fixedly provided with a shower head, and the liquid inlet pipe is provided with a first boosting pump. The apparatus increases a lateral area in the dropping process of manganese dioxide and makes the sprayed hydrogen peroxide to a divergent state, so that the manganese dioxide has a great contact area with the hydrogen peroxide, and a reaction can be carried out in a very short time and oxygen is generated, so that the chemical oxygen production apparatus has the advantages of convenient usage and high oxygen production efficiency.
Owner:刘笑菲

A portable water flow rate measuring device for water conservancy detection

ActiveCN111175532BEasy to tieTo achieve the effect of being rooted in the river bottomSpeed/acceleration/shock instrument detailsFluid speed measurementMeasurement deviceWater velocity
The invention discloses a portable water flow rate measuring device for water conservancy detection, which comprises a water flow rate measuring instrument, a conical counterweight is arranged under the water flow rate measuring instrument, and a conical counterweight is fixedly installed on the top of the conical counterweight. Cover plate, the top of the conical counterweight is provided with a rectangular hole, the bottom of the water flow rate measuring instrument is fixedly connected with a fixed seat, and the bottom of the fixed seat extends into the rectangular hole, the cover plate is fixedly sleeved on the fixed seat, and the rectangular hole The inner sealing sliding sleeve is provided with a rectangular box with an opening at the top. The design of the invention is reasonable, and the setting of four auger ground blades facilitates screwing into the river bottom after being lowered into the water, so as to achieve the effect of being rooted in the river bottom, effectively reducing the risk of being washed away or knocked down by the river, and improving the stability of the measurement , and after use, it is convenient to store the four auger ground leaves in the rectangular hole, avoiding the phenomenon of being stabbed or broken when it is exposed outside when carrying or not in use, which is beneficial to use.
Owner:沧州昊海水利工程质量检测有限公司

Longitudinally and transversely connected belt type pontoon bridge

PendingCN113308980AImprove lateral connection functionFree combinationPortable bridgeDual carriagewayDeck
The invention provides a longitudinally and transversely connected belt type pontoon bridge, and belongs to the technical field of pontoon bridge equipment for erecting floating bridges and ferrying gate bridges in rivers and ports. The longitudinally and transversely connected belt type pontoon bridge comprises pontoon bridge unit bodies and sharp boat assemblies. Each sharp boat assembly comprises a transversely-connected sharp boat, a transversely-connected ark, a first connecting piece, a turnover hinge, a deck transverse hasp piece, a transverse connecting joint, a transverse connecting lug plate, a sharp boat fixing lug plate and a second connecting piece. The adjacent belt type pontoon bridges are transversely connected, the problem that transverse connection between bridge section box units cannot be achieved due to the fact that the transverse connection function between the bridge section box units is not considered in an existing belt type pontoon bridge is effectively solved, the double-lane traffic capacity is achieved, the transverse area when an overwater operation platform is formed is increased, the requirement for free combination and flexible connection of transverse connection of the belt type pontoon bridges is met, and meanwhile after the two belt type pontoon bridges are transversely connected, when the two belt type pontoon bridges serve as bridges for vehicles to pass through, heavy-load double-lane passing can be achieved.
Owner:BENGBU SHENZHOU MACHINERY

Auxiliary pollination machine for increasing production in multi-rotor breeding fields

The invention discloses a multi-rotor-wing auxiliary pollination machine for producing seeds and increasing the yield. The machine comprises a multi-rotor-wing aircraft, and the multi-rotor-wing aircraft is characterized in that two air blowing fans are assembled at the tail of a rack of the multi-rotor-wing aircraft through a connection frame, wherein the air outlet direction of the two air blowing fans is 45-degree downwards relative to the plane of a machine body and 45-degree outwards relative to the direction of the machine tail. When the multi-rotor-wing auxiliary pollination machine for producing the seeds and increasing the yield flies, generated downward spinning air flow can reach force 5-6 wind power, stamens of corn male plants can be shaken forcefully, pollen in the stamens is shaken off and made to fly away, when the multi-rotor-wing machine flies over the corn male plants, air flow generated by the tail of the machine goes up to drive the pollen to spread toward the two sides of the flight direction, and thereby the transverse distance and area of pollen spreading are increased, so that the pollen can adhere to female plants more uniformly, the pollination rate of the female plants is raised, the traditional plantation mode that one corn male plant pollinates three corn female plants can be improved to the extent that one corn male plant pollinates ten to fifteen corn female plants, the pollination rate is raised, pollination quality is improved, and the purposes of increasing the yield and enhancing the effect are achieved.
Owner:沈阳金丰春航空科技有限公司

Internal partition plate of steel plate house for buildings

The invention discloses an internal partition plate of a steel plate house for buildings. The internal partition plate comprises a main body plate, extension plates are slidably mounted at the left end and the right end of the main body plate, lifting assemblies are arranged in inner cavities of the extension plates, extrusion fixing assemblies are arranged at the upper ends of the lifting assemblies, a partition plate door is extruded at the outer end of the extension plate on one side, a supporting base is inserted into the lower end of the main body plate, the lower ends of the extension plates and the lower end of the partition plate door. According to the internal partition plate, the main plate body is matched with the two extension plates, the overall transverse area after the main plate body and the two extension plates are spliced can be enlarged, so that the main plate body and the extension plates are suitable for being used in steel plate houses with different lengths or widths, meanwhile, the main plate body, the extension plates and the partition plate door can be detached, so that disassembly and handling of the steel plate house after use are facilitated; after the main plate body, the extension plates and the partition plate door are assembled, the main plate body, the extension plates and the partition plate door are fixed in the steel plate house through the extrusion fixing assemblies and the supporting base, so that the mounting position of the main plate body, the extension plates and the partition plate door can be adjusted at any time in the steel plate house, and the requirement of people for space is met.
Owner:张焕英

A rotatable bionic horizontal tail with variable area

The invention discloses a variable-area rotatable bionic horizontal tail wing, and belongs to the technical field of aircraft. The tail wing comprises a flat tail rotating mechanism, a flat tail deflection control mechanism and variable area mechanisms, wherein one end of the flat tail rotating mechanism is fixed to the center position of the tail part of a machine body, the other end of the flattail rotating mechanism is connected with the flat tail deflection control mechanism, the two groups of variable area mechanisms are symmetrically arranged on the two sides of the flat tail deflectioncontrol mechanism correspondingly, the flat tail rotating mechanism comprises a motor, a motor base and a first rotating shaft, the flat tail deflection control mechanism comprises a first steering engine, a first connecting rod, a second rotating shaft and a tail wing supporting frame, the first steering engine is fixedly mounted at the output end of the first rotating shaft, and the variable area mechanisms comprise second steering engines, second connecting rods, fixing plates, first long rods, second long rods and a plurality of feathers. The tail wing has the heading operation capacity and can integrally rotate around the axis of symmetry, after rotating at a certain angle, the lateral area is increased, and it means that the tail wing can bring a heading moment.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Circuit breaker

The invention relates to a circuit breaker. The circuit breaker comprises a moving contact, a static contact, an operating mechanism, an arc extinguishing system and a release. The arc extinguishing system is arranged on one side of a connection portion of the moving contact and the static contact. The moving contact is connected to the operating mechanism in a linkage mode. The operating mechanism is connected to the release through a draw bar in the linkage mode. The static contact comprises a static contact point bearing portion, a wiring portion used for introducing a current and a bending portion used for connecting the static contact point bearing portion and the wiring portion. An upper side surface of the static contact point bearing portion is provided with a static contact point. The moving contact comprises a moving contact seat, a moving contact sheet, a moving contact point and a moving contact shell. The moving contact seat is installed in the moving contact shell. A tail end of the moving contact sheet is hinged to the moving contact seat. The moving contact point is arranged on a top end of the moving contact sheet. The moving contact shell forms an opening above the connection portion of the moving contact sheet and the moving contact seat. When a heavy current passes through, the moving contact is bounced and disconnected because of a Lorentz force so that a segmentation capability of the circuit breaker is increased.
Owner:PAISENTE ELECTRICAL CO LTD

A spiral atomization jet dust suppression device

The invention discloses a screw type atomization-spraying dust precipitating device applicable to atomization of water or water-air and other media with relatively low viscosity. An upper end cover of the device adopts a cylindrical structure, an external thread is arranged at the upper end part, an air inlet is horizontally formed in the middle of the upper end cover and adopts a bolt hole structure, a screw valve is arranged in the center of the upper end cover, and the screw valve and the center of the upper end cover are located on the same axis; a taper hole is formed in the center inside the screw valve and connected with the air inlet, through holes are formed in positions equally spaced from the periphery of the taper hole and are water inlets, a plurality of screw grooves are arranged on the outer edge of the screw valve and have rectangular sections, and the length-width ratio of the rectangles is gradually increased; the upper end cover and an oscillation cavity at the lower end are connected through bolts; the lower end of the oscillation cavity is connected with a connecting piece through threads, the connecting piece adopts a U-shaped groove structure, a bulge is arranged in the middle of the U-shaped groove, and a horn-shaped spray head is arranged in the center of the bulge. The device is simple in structure, easy to control and adjust, good in atomization effect, high in practicability, safe and reliable.
Owner:TAIYUAN UNIV OF TECH

Method for excavating tunnel in high liquid limit soil

The invention discloses a method for excavating a tunnel in high liquid limit soil. The method comprises the following steps of: A, excavating the upper part of the left side of the tunnel; B, performing primary support on an arch crown in the excavated section; C, excavating the upper part of the right side of the tunnel; D, finishing the primary support of the arch crown; E, excavating the lower part of the tunnel, namely a lower left side part, a core soil part and a lower right side part, firstly excavating the lower left side part, secondly excavating the lower right side part, and finally excavating the core soil part; and F, assembling reinforcement on an inverted arch, mounting a template, pouring C25 concrete to finish a second liner of the inverted arch, and backfilling the concrete. In the method, a manual hand-held wind tunnel excavating tool is mainly replaced by an excavator for excavation supplemented by manual modification, so that construction efficiency is greatly improved; the middle core soil part is increased through inverted arch excavation, so that the stability of surrounding rocks in the sealing ring formation process is ensured, and construction safety isgreatly improved; and due to the application of the method, construction efficiency is improved, and construction cost is reduced.
Owner:GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG

A high-efficiency steel bar cutting machine

The invention discloses a high-efficiency steel bar cutting machine. Its structure includes a pressing handle, a rotating mechanism, a fixed seat, a placement plate, and a cutting hole. The rotating mechanism is provided with a cleaning device, a protective shell, and a cutting blade. On the left and right sides of the blade, the spring rod shrinks the scraper to avoid friction between the scraper and the cutting blade at all times, preventing the scraper from being damaged too quickly, and the magnetic blocks on the upper and lower sides of the spring rod keep the spring rod in balance, scraping The cleaning mechanism at the lower end of the cleaning mechanism makes the cutting blade more sharp. The inclined cleaning plate is stretched and stretched through the second elastic rod at the right end of the fixed rod, which rubs against the cut of the cutting blade, and the cleaning rod on the cleaning plate acts on the cut of the cutting blade. Force, to avoid the expansion of the lateral area of ​​the cutting blade surface, block cleaning block to scrape off the swarf residue attached to the side of the cutting blade, to prevent the swarf residue from solidifying on the side of the cutting blade after cooling, and to prevent the cutting blade from slipping on the surface of the steel bar when cutting.
Owner:山东振鹏建筑钢品科技有限公司

breaker

The invention relates to a circuit breaker. The circuit breaker comprises a moving contact, a static contact, an operating mechanism, an arc extinguishing system and a release. The arc extinguishing system is arranged on one side of a connection portion of the moving contact and the static contact. The moving contact is connected to the operating mechanism in a linkage mode. The operating mechanism is connected to the release through a draw bar in the linkage mode. The static contact comprises a static contact point bearing portion, a wiring portion used for introducing a current and a bending portion used for connecting the static contact point bearing portion and the wiring portion. An upper side surface of the static contact point bearing portion is provided with a static contact point. The moving contact comprises a moving contact seat, a moving contact sheet, a moving contact point and a moving contact shell. The moving contact seat is installed in the moving contact shell. A tail end of the moving contact sheet is hinged to the moving contact seat. The moving contact point is arranged on a top end of the moving contact sheet. The moving contact shell forms an opening above the connection portion of the moving contact sheet and the moving contact seat. When a heavy current passes through, the moving contact is bounced and disconnected because of a Lorentz force so that a segmentation capability of the circuit breaker is increased.
Owner:PAISENTE ELECTRICAL CO LTD
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