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56results about How to "Reduce local damage" patented technology

Composite fracturing and uniform permeability-improving method for tree-like boreholes in coal seams of underground coal mine

The invention discloses a composite fracturing and uniform permeability-improving method for tree-like boreholes in coal seams of an underground coal mine. The composite fracturing and uniform permeability-improving method is suitable for permeability improvement of soft low-permeability coal seams, and is characterized in that a gas exhausting and mining hole serve as a mother hole, uniformly distributed self-advancing boreholes serve as tree-like son boreholes, and a tree-like borehole net is subjected to hole-sealing fracturing. Compared with a conventional hydraulic fracturing method, the composite fracturing and uniform permeability-improving method can realize uniform fracturing of the low-permeability coal seams to enlarge the fracturing range of single crossing boreholes, so that uniform permeability improvement is achieved, and the shortcomings that the crossing boreholes subjected to conventional hydraulic fracturing are low in utilization ratio, and a single major fracture can damage top and bottom beds are overcome. The composite fracturing and uniform permeability-improving method is simple to operate, large in permeability improvement range and good in permeability improvement effect and provides a guarantee for safety production of the underground coal mine.
Owner:CHONGQING UNIV

Fast spoil disposal slope protection and ecological recovery open-pit mining technology

The present invention relates to an open-pit mine excavation process, in particular, it relates to an open-pit mining process capable of quickly discharging earth to protect bank and making ecological restoration. It is characterized by that in one end of open-pit mine or its middle said invention adopts a conventional method, if the stripping and mining operation of initial stripping working face is completed, on the deposit mining direction the mining working face can be divided into left side zone, medium zone and right side zone, then they are further divided into several smaller subsections, every subsection can be used as an unit, on every subsection the processes of stripping, mining, backfilling and banking, cultivating-greening or covering with concrete are progressively adopted so as to implement the invented open-pit mining process.
Owner:WUHAN UNIV OF TECH

Nanodispersions

The invention provides process for making contra-soluble nano-dispersions of at most sparingly-soluble materials in a soluble carrier material comprising the steps of: (i) providing a single phase mixture of: a) a solvent or a mixture of miscible solvents, b) at least one carrier material soluble in solvent (a), said carrier material being also contra-soluble to payload material (c) and solid at ambient temperature, c) at least one a payload material which is soluble in solvent (a), and, (ii) drying the mixture to remove solvent (a) and thereby obtain the carrier material (b) in solid form with payload (c) dispersed therein as nanoparticles.
Owner:IOTA NANOSOLUTIONS

Hole flushing device for coal mine downhole gas extraction drill holes

The invention provides a hole flushing device for coal mine downhole gas extraction drill holes. The hole flushing device comprises a water tank, a high-pressure pump, a high-pressure hard pipe, a high-pressure hose, a self-propelled drill bit, a base, a winch, a pushing mechanism and the like. The winch and the pushing mechanism are fixed to the base. The device can correspond to the drill holes in different positions and at different angles by adjusting all parts of the base. The high-pressure hard pipe can penetrate through the pushing mechanism before being fed into the drill holes. The high-pressure hard pipe can be conveyed forwards along the drill holes through pushing force provided by the pushing mechanism. When high-pressure water passes through the high-pressure hose at the front end of the high-pressure hard pipe and the self-propelled drill bit, high-pressure water jet is generated to conduct rock breaking dredging on collapsed and blocked portions, and self-propelling force is generated. The device is simple in structure, small in overall size and convenient to adjust, and can be conveniently used in coal mine downhole narrow working space. A whole power pipeline can be conveyed in long distance under joint acting force of pulling in front and pushing behind, and the pipeline can be prevented from being clamped. The hole flushing speed is high, efficiency is high, cost can be greatly reduced, and the gas extraction effect is improved.
Owner:CHONGQING UNIV +1

Composite fracturing and uniform permeability increasing equipment for treelike drilling in coal seam of underground coal mine

The invention discloses composite fracturing and uniform permeability increasing equipment for treelike drilling in a coal seam of an underground coal mine. The whole equipment can be divided into a hole forming system and a fracturing system. The hole forming system comprises a drilling machine, a drill stem, a drill bit, a support, a water tank, a high-pressure pump, a winch, a propelling mechanism, a chuck, a high-pressure hose, a self-propelled drill bit and the like. The fracturing system comprises the water tank, the high-pressure pump, a pressure meter, a high-pressure rubber pipe, a hole sealing device and the like. The composite fracturing and uniform permeability increasing equipment is suitable for carrying out volume fracturing on the coal seam of the underground coal mine, can reach the effects of carrying out uniform permeability increasing on the coal seam and increasing the gas extraction rate, and is easy to operate and good in economic performance.
Owner:CHONGQING UNIV

Transverse-direction low-yield-point energy dissipation type steel bridge anti-seismic stop block structure and arranging method

The invention discloses a transverse-direction low-yield-point energy dissipation type steel bridge anti-seismic stop block structure and an arranging method. The bridge anti-seismic stop block structure comprises a steel corbel, a stop block body and a steel frame, wherein the steel corbel is fixed to the side face of the top of the portion, nearby a movable support, of a bridge pier, the stop block body is fixed to the steel corbel, and the steel frame is fixed to the bottom of a bridge body. The anti-seismic stop block structure is arranged nearby each movable support, the collision positions are disperse, multiple anti-seismic stop block structures are arranged, therefore, the seismic force acting on each stop block structure can be effectively decreased, and then local damage of the stop block structures can be reduced; each stop block body comprises an energy dissipation type low-yield-point steel plate. According to the bridge anti-seismic stop block structure, large displacement between beam bodies and the bridge piers can be effectively limited, and damage of the movable supports and expansion joints can be reduced; under the action of a violent seism, not only can local damage of the collision areas and damage transmitted to the bottoms of the bridge piers be effectively reduced, but also part of seismic energy can be dissipated by means of plastic deformation of the energy dissipation type low-yield-point steel plates arranged in the stop block bodies.
Owner:NANCHANG UNIV

Three-way limiting buffering bridge anti-seismic stop dog structure and arranging and installing method

The invention discloses a three-way limiting buffering bridge anti-seismic stop dog structure and an arranging and installing method. The bridge anti-seismic stop dog structure comprises a steel corbel, a stop dog lower structure and a stop dog upper structure; the steel corbel is fixed to the side face, in the bridge axial direction, of the top of a pier close to a bridge movable supporting base, the stop dog lower structure is fixed to the top of the steel corbel through bolts, a groove is formed in the lower portion of the stop dog upper structure, the stop dog upper structure is fixed to the bottom of a main beam of the bridge through bolts, and an impact block is arranged on the upper portion of the stop dog lower structure. Relative large displacement between a beam body and the pier in the bridge axial direction, bridge transverse direction and vertical direction can be effectively limited, damage to the movable supporting base and expansion joints is reduced, and the beam body is prevented from falling in the bridge axial direction and bridge transverse direction and prevented from vertically getting away from the supporting base to cause damage on the supporting base, beam cocking damage and vertical impact damage between the beam body and the supporting base. The three-way limiting buffering bridge anti-seismic stop dog structure is simple in structure, convenient to construct, easy to repair and replace and suitable for new and old bridges.
Owner:NANCHANG UNIV

Post-tensioning self-resetting joints capable of multi-stage energy dissipation and assembling method for post-tensioning self-resetting joints

The invention discloses post-tensioning self-resetting joints capable of multi-stage energy dissipation and an assembling method for the post-tensioning self-resetting joints. The joints can slide relative to one another, and provide energy dissipation under small deformation through a mode of unilateral friction between a T-shaped piece and a beam flange, with increasement of deformation of openings of the joints, an SMA damper connected with a T-shaped plate begins to enter a phase transition energy dissipation phase, and introduced metal damping cannot increase residual deformation of the joints at the same prestress level; and for avoiding the characteristic of low redundancy of the post-tensioning joints, contact pressure-bearing of a bolt rod connecting the T-shaped piece and the beam flange and the oblong hole wall of the beam flange is allowed through an oblong hole, and under extreme conditions, collapse can be effectively resisted. According to the post-tensioning self-resetting joints, under small to middle seisms, friction damping is used for energy dissipation, energy dissipation in a combined energy dissipation mode can be realized by cooperating with SMA phase transition under middle to large seisms, and by means of post-tensioning prestress reinforcements, complete resetting is realized; and under the extreme conditions, joint force transfer is transformed intocollapse resistance in a hole wall pressure-bearing mode, and multi-stage energy dissipation and the multi-redundancy property are realized.
Owner:CHONGQING UNIV +1

Strong force propulsion plant of continuous tube

InactiveCN1558084ABig propulsionIncrease the propulsion friction surfaceLiquid/gas jet drillingDirectional drillingLine tubingDrive wheel
The powerful control tube driving apparatus is suitable for driving various tubes inside deep hole in mining and geotechnical engineering. The present invention sets fixed friction blocks symmetrically to the transmission chain, and the friction blocks are connected to the transmission chain via shaft pin, are provided with inclined shaft pin rail. The two limiting rails symmetrically over and below the continuous tube are parallel to the continuous tube and made to contact with the roller of the shaft pin, and each transmission chain is driven with one pair of driving wheels. Compared with available technology, the present invention can produce much great continuous driving force to meet the requirement of drilling horizontal drilling over 200 m.
Owner:TAIYUAN UNIV OF TECH

Universal through-endoscope puncture instrument for multiple organs

The invention discloses a universal through-endoscope puncture instrument for multiple organs. The universal through-endoscope puncture instrument for the multiple organs comprises a V-shaped component, a flexible plastic tube, a flexible needle tube, a guide wire and an external fixator. The universal through-endoscope puncture instrument with the fixed length is applicable to puncture suction through an alimentary canal ultrasonic endoscope, applicable to puncture suction through a trachea ultrasonic endoscope, and also applicable to intravascular injection, submucosal injection, deep biopsy and the like through a common direct-sight endoscope, and the requirement that the guide wire can be not pulled out in the process of puncture is met.
Owner:常州德天医疗器械有限公司

Bridge bearing platform composite material collision post

The invention relates to a bridge bearing platform composite material collision post, comprising a composite material shell (5); the bridge bearing platform composite material collision post is characterized in that: the vertical wall of the composite material shell (5) is composed of a composite material surface layer (1), a sandwich material layer (2) and a resin based fiber sandwich composite material inner layer (6), the sandwich material layer (2) is clamped between the composite material surface layer (1) and the resin based fiber sandwich composite material inner layer (6), a filling material layer (3) is filled in the composite material shell (5), mounting ears (7) are formed by respectively extending to two sides, facing to one surface of the bridge bearing platform, a mounting hole (4) which is used for being penetrated by a bolt to fix the collision post on the bridge bearing platform is arranged on the mounting ear (7); the bridge bearing platform composite material collision post has simple structure, reliable and perfect anti-collision function and long service life, and is convenient for maintenance and repair.
Owner:南京工大复合材料科技有限公司

FRP (fiber reinforce plastic) tube-concrete-multiple steel tube hollow combined single-box or multi-box multi-compartment beam

The invention discloses a FRP (fiber reinforce plastic) tube-concrete-multiple steel tube hollow combined single-box or multi-box multi-compartment beam, which is composed of an outer FRP tube, built-in steel tubes and concrete, wherein the concrete is arranged between the two layers; the outer FRP tube is in a single-box or multi-box multi-compartment beam form; the number of the built-in steel tubes is equal to or greater than two; and the longitudinal central axes of the built-in steel tubes are arranged in the outer FRP tube in an axial symmetry mode so as to form a hollow combined single-box or multi-box multi-compartment beam. The beam disclosed by the invention is in a single-box multi-compartment beam or multi-box multi-compartment beam combined form, so that the integrity, torsional stiffness and stability of a combined member can be effectively improved, thereby improving the unbalanced load and horizontal load bearing capacities of the combined member; the combined member has good ductility and earthquake resistance; the member is externally coated with a corrosion-resistant material FRP, so that the built-in steel tubes and concrete are effectively protected, therefore, the member has good durability, and low later-period maintenance costs; and the member also has the advantages of light self-weight, convenience in construction, and the like, and has a broad application prospect in areas with high requirements on durability and earthquake resistance.
Owner:GUANGDONG UNIV OF TECH

Anti-overturning structure additionally arranged for existing single-pier bridge

The invention discloses an anti-overturning structure additionally arranged for the existing single-pier bridge, which comprises a main beam, a single pier used for supporting the main beam, small bent caps arranged on the two sides of the single pier and check block bodies arranged at the outer ends of the two sides of the upper portions of the small bent caps, and steel springs connected with the check block bodies are arranged between the check block bodies and the side wall of the main beam. An anti-overturning support and an NV rubber mudguard are arranged between the small bent cap and the main beam, and the two ends of the anti-overturning support are connected with the top of the small bent cap and the bottom of the main beam respectively; the bottom of the NV rubber mudguard is connected with the top of the small bent cap in an anchored mode. By reducing the overturning moment of the bridge in the transverse direction and the energy absorption and buffering effects of the NV rubber mudguard, the anti-overturning force of the bridge is additionally provided through the elastic force of the steel spring, so that the anti-overturning capacity of the bridge is enhanced, the stress condition of the bridge is improved, and potential safety hazards of an existing bridge are eliminated.
Owner:NANCHANG UNIV

Preparation method for bone-ash ceramic

A preparation method for bone-ash ceramic comprises the following steps: preparing raw materials, specifically performing mechanical beating on raw materials, sieving with a 200 mesh sieve for usage; performing mixing pulping on the prepared raw materials for usage; utilizing pressure to form a green body; drying at 500-600 DEG C; after drying is performed, placing at 0-5 DEG C for 1-2 h; glazing at normal temperature; and putting in a kiln and sintering for forming. According to the preparation technology, roasting for obtaining a green body can be finished at a relatively low temperature, and the prepared bone-ash ceramic has excellent heat stability, high qualified rate and low production cost.
Owner:上海景潮酒店用品有限公司

Application of traditional Chinese medicine preparation in treating and/or preventing laryngo-pharyngeal reflux

The invention provides application of a traditional Chinese medicine composition in preparing medicine for treating and / or preventing laryngo-pharyngeal reflux. The traditional Chinese medicine composition comprises, by weight, 10-12 parts of pinellia ternate preparata, 12-15 parts of poria cocos, 9-12 parts of mangnolia officinalis, 6-15 parts of ginger and 6-10 parts of perfilla leaf.
Owner:北京大品种联盟科技咨询有限公司

Gear of textile machine

The invention discloses a gear of a textile machine and relates to the field of textile mechanical equipment. The gear of the textile machine comprises a gear shaft sleeve and a gear shaft hub, wherein the gear shaft sleeve and the gear shaft hub are machined integrally, a gear ring is arranged on the gear shaft hub, straight teeth are arranged on the gear ring, an oil guiding groove is formed in the gear ring, a wearing layer is arranged on the surfaces of the straight teeth, and the thickness of the wearing layer is 0.02-0.05mm. According to the gear of the textile machine, due to the fact that holes are formed in the gear shaft hub and the oil guiding groove is formed in the gear ring, lubricating oil can be evenly distributed to each straight tooth, the lubricating effect is improved, and local damage to the straight teeth is reduced; due to the fact that the wearing layer is arranged on the surfaces of the straight teeth, abrasion-resisting performance of the straight teeth can be greatly improved, and the service life is prolonged; due to the fact that the holes are formed in the gear shaft hub, weight of the gear can be reduced, and materials are saved. The gear of the textile machine is suitable for being popularized and used.
Owner:CHANGSHU FANGYUAN TEXTILE EQUIP FACTORY

Folding noise reduction protective fence for intelligent traffic

The invention discloses a folding noise reduction protective fence for intelligent traffic, and belongs to the technical field of traffic safety facilities. The folding noise reduction protective fence comprises a supporting assembly, the top of the supporting assembly is fixedly connected with a first buffer assembly, the first buffer assembly is applied to primary buffer protection, and the surface of the first buffer assembly is fixedly connected with an outer protective assembly. According to the protective fence, through mutual cooperation of the designed supporting assembly, the first buffer assembly, a sound insulation assembly, a second buffer assembly, a pressure conversion assembly and other structures, the situation that the whole protective fence is directly damaged due to the fact that the borne impact force is too large can be avoided, the rigid impact force is relieved after stress is borne, the impact force is slowly counteracted, the damage to the persons in vehicles and the protective fence can be reduced to the maximal degree, an air bag can rotate in a third bearing through a third adapter shaft, so that the overall stress of the outer protective assembly is realized, the local damage of the outer protective assembly after the outer protective assembly is impacted can be reduced, and a better protection effect is achieved.
Owner:深圳聚创致远科技有限公司

Use of radical-scavenging compounds for treatment and prevention of NO-dependent microcirculation disorders

A method of treatment of the human or non-human animal body for treating NO-dependent microcirculation disorders is disclosed, for example microcirculation disorders caused by metabolic diseases, such as elevated levels of homocystin-homocystein inflammatory reactions or autoimmune diseases, furthermore peripheral microcirculation disorders or microcirculation disorders associated with increased cell fragmentation, which method comprises administering to a human or non-human animal body in need of such treatment an effective amount of a pharmaceutical composition containing a substance which scavenges free radicals, e.g. a pyrimido-pyrimidine selected from Dipyridamole, Mopidamol and the pharmaceutically acceptable salts thereof, and the use such substance for the manufacture of a corresponding pharmaceutical composition, optionally in combination with an agent capable of increasing NO procution.
Owner:BOEHRINGER INGELHEIM PHARM KG

Tank cover of fuel tank

The invention belongs to the technical field of automobile parts, and particularly relates to a tank cover of a fuel tank. The tank cover comprises a shell; and a rotation module is arranged at the top of the shell. By arranging the rotation module on the shell of the tank cover, a rotary rod and a guiding rod in the rotation module apply torque force to the tank cover when being mutually matched,the difficulty of taking down and mounting the tank cover is greatly lowered, meanwhile the tightening effect of the tank cover is enhanced, and engine oil leakage caused by infirm mounting of the tank cover is reduced; and by setting the shape of a limiting block, the limiting block and a clamping groove are mutually matched, on the one hand, torque force to the top of the shell during rotationof the rotary rod is increased, on the other hand, the acting area of the rotary rod on the shell is increased, local damage caused to the shell by concentrated acting force of the rotary rod on the shell is reduced, and thus the screwing-out effect of the rotary rod on the tank cover is enhanced.
Owner:超达汽车配件有限公司

Display device

The present invention provides a display device. By setting opposite surfaces of the substrate and the hard coat layer of the glass cover plate as uneven structures, not only flatness of the glass cover plate can be ensured, but also stress can be dispersed under point impact. Meanwhile, upper and lower sides of the protection layer are provided with uneven structures at the same time, such that the stress can also be diffused, and the buffer layer is formed by flattening the upper and lower sides of the protection layer to make the entire buffer layer smoother. The display device of the present invention can increase resistance to point impacts and reduce local injuries.
Owner:WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

Bridge prefabricated may reset energy dissipation anti-seismic check blocks

PendingCN110565503ASmall residual deformation after earthquakeReduce the difficulty of repairBridge structural detailsBackplaneGeotechnical engineering
The invention relates to a bridge anti-seismic chock block invention field, and specifically relates to a bridge prefabricated may reset energy dissipation anti-seismic check blocks. The device comprises a back plate, a front plate, a U-shaped plate, a connecting rod, a spring, a soft steel, a bolt, a gasket, a stiffening rib, a bolt hole, a track; the front plate back plate consists of a plurality of sleeved with a spring, the connecting rod and the front plate are welded, the other end of the connecting rod passes through the corresponding hole on the back plate through a bolt after the backing plate at the limit connecting rod is pulled out of the back plate, the left side and the right side plate of the U-shaped plate is provided with a plurality of bolt holes, the baffle block throughthe bolt connected to the cover beam, and this connection can be fabricated connection mobility. According to the device, compared with the traditional stop block, the structure is simple, the stressis clear, the conventional check block and a main beam of the rigid collision into flexible collision, slowing down the seismic action on the main beam and the baffle block, reducing the impact of the stop block and the local damage of the main beam.
Owner:NANCHANG UNIV

Local anesthesia gel preparation and preparation method thereof

The invention discloses local anesthesia gel preparation and a preparation method thereof. The local anesthesia gel preparation is prepared from, by weight, 8-20 parts of Celastrus orbiculatus, 8-20 parts of benzoin, 2-2.8 parts of bee venom, 0.1-2.0 parts of etamsylate, 0.3-1.0 part of benzoate, 3-5 parts of menthol, 2-3.6 parts of diclofenac, 1.0-1.5 parts of sodium fusidate, 1.5-3.5 parts of local anesthetic, 2.3-4.0 parts of viscous polymer, 0.05-0.3 part of preservative, 0.05-0.1 part of antioxidant, 0.2-0.6 part of surfactant and 10-16 parts of gel matrix. The local anesthesia gel preparation can be used for local administration of trauma or during small external surgery, can play a good role in controlling pain, resisting bacteria, diminishing inflammation and preventing wound infection, can reduce local damage, has high affinity with skin and is convenient to use and quick in action; anesthetic action generated by the local anesthesia gel preparation can quickly seep into collenchyme and can last for a long time, and the local anesthesia gel preparation is safe and nontoxic, simple in preparation process and low in cost.
Owner:卢连伟

Plate safe separation method and power charging structure

The invention relates to a plate safe separation method and a powder charging structure. The method utilizes theoretical derivation to reduce the main control parameters in the separation process of aplate. The power charging structure comprises the plate, an explosive, a detonator, a buffer layer, a spacer layer and a groove. The structure is characterized in that: a circle hole is arranged in the center of the plate, the two sides of the central axis of the plate are provided with grooves, the buffer layer is arranged in the circle hole, the explosive is arranged in the buffer layer, and the spacer layer composed of wrapping a detonating tube with a plastic sleeve is arranged between the explosive, and the explosive is detonated by the detonator. According to the invention, the plate can be safely separated without redundant power, and a reliable theoretical derivation is provided; the experimental process is simple; and the required experiment quantity is small.
Owner:ANHUI UNIV OF SCI & TECH

Traditional Chinese medicine composition and preparation method thereof

ActiveCN106421708AEffective in treating reflux laryngitisSafety and little side effectsDigestive systemPill deliveryTraditional medicineLaryngopharyngeal reflux
The invention provides application of a traditional Chinese medicine composition in preparing a medicine for treating and / or preventing laryngopharyngeal reflux. The traditional Chinese medicine composition is prepared from the following raw medicines in parts by weight: 10-12 parts of prepared pinellia tuber, 12-15 parts of tuckahoe, 9-12 parts of officinal magnolia bark, 6-15 parts of ginger and 6-10 parts of perilla leaves.
Owner:北京大品种联盟科技咨询有限公司

Borehole washing device for gas drainage drilling in coal mine

The invention provides a hole flushing device for coal mine downhole gas extraction drill holes. The hole flushing device comprises a water tank, a high-pressure pump, a high-pressure hard pipe, a high-pressure hose, a self-propelled drill bit, a base, a winch, a pushing mechanism and the like. The winch and the pushing mechanism are fixed to the base. The device can correspond to the drill holes in different positions and at different angles by adjusting all parts of the base. The high-pressure hard pipe can penetrate through the pushing mechanism before being fed into the drill holes. The high-pressure hard pipe can be conveyed forwards along the drill holes through pushing force provided by the pushing mechanism. When high-pressure water passes through the high-pressure hose at the front end of the high-pressure hard pipe and the self-propelled drill bit, high-pressure water jet is generated to conduct rock breaking dredging on collapsed and blocked portions, and self-propelling force is generated. The device is simple in structure, small in overall size and convenient to adjust, and can be conveniently used in coal mine downhole narrow working space. A whole power pipeline can be conveyed in long distance under joint acting force of pulling in front and pushing behind, and the pipeline can be prevented from being clamped. The hole flushing speed is high, efficiency is high, cost can be greatly reduced, and the gas extraction effect is improved.
Owner:CHONGQING UNIV +1

Energy dissipation buffer type limitable bridge anti-seismic check block structure with steel spring

The invention belongs to the technical field of bridge earthquake resistance, and particularly relates to an energy dissipation buffer type limitable bridge anti-seismic check block structure with a steel spring. The structurecomprises a steel corbel and a check block structure, the steel corbel is fixed to the side face of the top of a pier near a movable support, and a check block body is fixedto the top of the steel corbel and comprises a steel plate, a steel spring, a hinge structure, a rolling shaft, a hinge fixing body and a four-round-hole limiting stopper. By means of the bridge anti-seismic check block structure, large displacement between the beam body and the bridge pier can be effectively limited, beam falling damage of the beam body in the bridge direction and the transversebridge direction and damage that the beam body is vertically separated from the support are prevented, damage to the movable support and the expansion joint is reduced, and seismic energy can be consumed by means of movement of the rolling shafts. The device is simple in structure and convenient to construct.
Owner:NANCHANG UNIV

Novel anti-collision column

The invention discloses a novel anti-collision column which comprises a square column body and further comprises four anti-collision plates and three or more compressed springs. The outer side surfaceof each anti-collision plate is a rubber layer, the anti-collision plates are matched with the side surface of the square column, the anti-collision plates are connected to the peripheral surface ofthe square column body through the compressed springs, the two ends of the compressed springs are fixedly connected between the inner side surfaces of the anti-collision plates and the square column body correspondingly, and the compressed springs are uniformly distributed on the inner side surfaces of the anti-collision plates. The problems that in the prior art, the requirements for the strengthand the rigidity of the column are high, and local damage is likely to cause are solved.
Owner:GUIZHOU ELECTRIC POWER DESIGN INST
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