109results about How to "Efficient demolition" patented technology

The invention relates to a receding construction method of a cradle of a continuous girder bridge made of prestressing concrete, which is characterized in that the bridge surface of a bridge prefabricated by concrete is provided with a track and a door-shaped truss traveling device, and the width of a ceiling girder inside the door-shaped truss traveling device is wider than that of the bridge surface by 90cm-110cm; a front bottom cross beam and a rear bottom cross beam must extend to the outer side of an external mold by 45cm-55cm to form a main cradle truss, and an overhanging auxiliary door frame is additionally arranged outside the main cradle truss, after the construction of a closure segment of the bridge prefabricated by concrete is finished, and precise rolling deformed steel bars with the diameter of 32 outside a box girder positioned on the overhanging auxiliary door frame are connected with the rear bottom cross beam to disassemble a rear hanging strip; a bottom mold frame is separated from a beam body by utilizing a manual spiral type jack to loose the precise rolling deformed steel bars positioned on the door frame and the front bottom cross beam; a leading chain or a hoist are utilized to drive the main cradle truss so that the cradle recedes in a slideway to a first cast-in-situ segment; and a bottom mold and the external mold are fallen by the leading chain or the hoist to disassemble the main truss.

A memory stores confidential data Da. An unqualified person who intends to irregularly read out the confidential data Da tries to open a cover of a housing, break the housing, or drill through the housing. The housing deflects by physical impact applied thereto. Positional relations among pairs of electrodes also deflects in accordance with the deflection of the housing. The deflection of the positional relations among the electrodes shifts capacitance at the electrodes. A data management processor deletes the confidential data Da when it detects the capacitance shifts.

The invention discloses a maintenance apparatus for a distribution line of an urban road. The maintenance apparatus is used for removing bird nests from a telegraph pole so as to ensure power transmission safety of the distribution line. A rotary plate is rotationally mounted on a vehicle body; the rotary plate is provided with a shears-fork type lifter; a lifting adjustment mechanism is arranged on the top of the shears-fork type lifter; a movable plate which can move up and down is arranged on the lifting adjustment mechanism; a big arm is mounted on the movable plate in a hinging manner; a big arm swinging mechanism used for driving the big arm to swing is arranged on the movable plate; a small arm is hinged on the big arm, and a small arm swinging mechanism used for driving the small arm to swing is arranged on the big arm; the small arm is hinged with a front arm, and a front arm swinging mechanism used for driving the front arm to swing is arranged on the small arm; a clamping assembly is arranged at one end of the front arm; the clamping assembly is used for clamping and dismantling bird nests; a push rod assembly is arranged at the other end of the front arm, and the push rod assembly is used for absorbing residual branches by air suction; and a branch recycling assembly is arranged on the vehicle body and used for realizing collection of branches. By virtue of the maintenance apparatus, power transmission safety of the distribution line can be effectively guaranteed.

The invention relates to a robot for automatically removing concrete pouring protective panels for pile foundations of high-rise buildings, which comprises a bottom plate, a walking device is installed on the lower end of the bottom plate, a reciprocating excavation device is installed on the front side of the upper end of the bottom plate, and an auxiliary device is installed on the bottom plate. The present invention can solve the problem of manual use of an electric chisel to separate the protective plate from the solidified concrete in the removal process of the existing pile foundation concrete pouring protective plate. Manual assistance is needed to remove the protective plate at a higher position with the help of existing climbing tools. The concrete particles splashed during the manual use of electric chisels are likely to hurt the staff. Removing the protective plate with the help of climbing tools poses a safety hazard , The manual removal of the pile foundation concrete pouring protective plate is difficult to operate and the work efficiency is low, and the function of automatic removal of the pile foundation concrete pouring protective plate can be realized.

Disclosed is a power transmission line nest removal device. The power transmission line nest removal device is used for removing nests on power transmission poles to guarantee the safety of power transmission. A sliding platform is installed on a vehicle body in a sliding mode, a translation cylinder is arranged between the sliding platform and the vehicle body, and a fork lifter is arranged on the top of the sliding platform. A lifting adjusting mechanism is arranged on the top of the fork lifter, and a movable plate which moves up and down is arranged on the lifting adjusting mechanism. A big arm is installed on the movable plate in a hinged mode, and a big arm swing mechanism which drives the big arm to swing is arranged on the movable plate. A small arm is hinged to the big arm, and a small arm swing mechanism which drives the small arm to swing is arranged on the big arm. A front arm is hinged to the small arm, and a front arm swing mechanism which drives the front arm to swing is arranged on the small arm. A clamping assembly is arranged at one end of the front arm, and clamps the nests to achieve removal operation. A push rod assembly is arranged at the other end of the front arm, and removes residual branches by blowing or sucking air. The power transmission line nest removal device can efficiently achieve removal of the nests and guarantee the safety of power transmission.

The invention discloses a surgical suite for sternal closure fixation. The surgical suite comprises a sternal closure fixator, an installation tool used for installing the sternal closure fixator and a removal tool used for removing the sternal closure fixator; the sternal closure fixator comprises a locking wheel, a male fixed part and a female fixed part. The male fixed part and the female fixed part of the sternal closure fixator are fixed through meshing of first oblique teeth and second oblique teeth, and when installation is conducted, meshing of the oblique teeth is stable and reliable; when removal is conducted, the distance between the male fixed part and the female fixed part is reduced through the removal tool, at the moment, the first oblique teeth can be extruded by the second oblique teeth, the meshing state between the first oblique teeth and the second oblique teeth is released, therefore, the sternal closure fixator can be effectively removed, and the problem that the sternal closure fixator is difficult to remove due to the fact that the male fixed part is subjected to plastic deformation is avoided.

The invention provides a removing tool and a removing method of an indoor ultrahigh assembly-type steel structure support system. The tool comprises first removing units and second removing units, which are arranged on the bottom of roof beams at intervals; each first removing unit comprises a non-standard electric hoists and an embedded rigid rail; each second removing unit comprises a winch and a flexible rail; and the first removing units and the second removing units are operated remotely. According to the removing tool and the removing method, a horizontally and bidirectionally sliding and vertically lifting and descending device is adopted, and is matched with a manual pushing and regulating method at the bottom so as to achieve a technical index of removing efficiently and safely, and finally indoor ultrahigh large assembled-type non-standard steel construction elements are removed and lifted efficiently; and the removing difficulty because construction units of the support system are large, high and heavy, and can not be transferred manually and mechanically is solved fully.

The invention discloses a demolition construction method for an overpass existing line arch bridge. The demolition construction method comprises the steps: 1, erecting a protective shed frame; 2, carrying out static crushing demolition on the arch blasting demolition structure; 3, manually removing the blasting protection layer; 4, cutting the removed arch ring; 5, hoisting the arch ring to be hoisted; and 6, dismantling the under-arch structure. The method is simple, reasonable in design, easy and convenient to construct and good in using effect; the protection shed frames fixed to the frontside and the rear side of the removed arch bridge are adopted for effective protection, meanwhile, the structure on the arch of the removed arch bridge is removed in the mode that static crushing andmanual chiseling are combined, it is guaranteed that a plain concrete arch ring cannot be damaged in the static crushing process, and an existing spanned railway line cannot be disturbed. After the arch ring is exposed, the removed arch ring is cut and decomposed through a rope saw and then hoisted and removed, then the under-arch structures on the left side and the right side are rapidly removed,the construction period can be effectively shortened, the arch bridge removing efficiency is improved, and the removing process is safe and reliable.

The invention belongs to the field of electric power maintenance auxiliary equipment, and relates to a bird nest disposing appliance, in particular to a bird nest dismantling device. The bird nest dismantling device comprises a support circular rack, wherein a lopping mechanism, a bird nest dismantling mechanism, a water mist spraying mechanism, a driving mechanism, a hot air blowing mechanism and a rod lifting mechanism are arranged on the support circular rack; and a control center plate and operating buttons are arranged on an insulated handle of the rod lifting mechanism internally. All mechanisms in the device can be controlled reasonably through the operating buttons, so that bird nests are dismantled efficiently and reasonably, and the device is simple in operation and high in degree of automation.

The invention relates to an efficient fixing device for a monitor. The efficient fixing device for the monitor comprises a base. A support cylinder is fixedly arranged on the base. A positioning sucker is mounted on the axis of the support cylinder. An air guide hole is formed in the center of the positioning sucker. A one-way exhaust valve is mounted at the end of the air guide hole. A suction cavity is connected to the tail end of the one-way exhaust valve. A heating body is mounted in the suction cavity in an air tight manner. The heating body is electrically connected into a circuit in thebody. A controller for timing circuit connection/disconnection is connected to the circuit board on the heating body in series. A normally-closed pressure-limiting valve is arranged on the suction cavity. A connection/disconnection switch is arranged on the normally-closed pressure-limiting valve. The connection/disconnection switch is electrically connected into a line of the heating body and the controller. The fixing device can be mounted on the wall body and the surface of a ceiling conveniently and is effectively prevented from falling off; and meanwhile damage to the wall body or the ceiling is avoided during dismantlement, and the original decoration is restored effectively.

An explosive container positioning saddle for munition demolition includes a base having a first surface defined by a portion of a cylindrical shape with a longitudinal axis. The base includes a second surface opposing the first surface. Sleeves are coupled to the second surface of the base and extend away therefrom. Each of the sleeves has a longitudinal axis and is oriented such that the longitudinal axis associated therewith is aligned to intersect with the longitudinal axis of the cylindrical shape.

An intelligent urban street bird nest demolishing device is used for demolishing bird nests on telegraph poles to ensure power transmission security. The intelligent urban street bird nest demolishing device is characterized in that a slide table is mounted on a vehicle body slidably, a translation mechanism is arranged between the slide table and the vehicle body, a scissor-fork lifter is arranged at the top of the slide table, a lifting adjustment mechanism is arranged at the top of the scissor-fork lifter, a movable plate moving up and down is arranged on the lifting adjustment mechanism, a large arm is mounted on the movable plate in a hinge manner, a large arm swing cylinder for driving the large arm to swing is arranged on the movable plate, a small arm is hinged to the large arm, a small arm swing motor for driving the small arm to swing is arranged on the large arm, a front arm is hinged to the small arm, a front arm swing motor for driving the front arm to swing is arranged on the small arm, and a clamping assembly is arranged at one end of the front arm and is used for clamping the bird nests to achieve demolishment. The intelligent urban street bird nest demolishing device is capable of demolishing the bird nests efficiently to ensure power transmission security.

The cell (1) has a housing (11) comprising an expansion burst region whose elasticity is larger than a elasticity of the housing. The expansion burst region forms a bulge that is turned away by a winding element when temperature-dependant volume change of housing contents increases within a given temperature operation range of the cell. The expansion burst region is arranged to rupture when a predetermined maximum pressure is exceeded within the housing. The housing is formed with stared wall portions. The expansion burst region forms an electrolyte-resistant elastic membrane. The elastic membrane is made of plastic material i.e. elastomer.

The invention discloses a bolt disassembling and assembling device, in particular to a disassembling and assembling device for the side door bolt of a gate plate blowout preventer, and belongs to the technical field of engineering mechanical equipment. The bolt disassembling and assembling device comprises a bolt disassembling and assembling mechanism and a workpiece mounting mechanism which is arranged at the end part of the bolt disassembling and assembling mechanism; the end part of the bolt disassembling and assembling mechanism comprises a sliding table I, a portal frame, a lifting crossbeam and an executing mechanism; the workpiece mounting mechanism comprises a sliding table II and a workpiece mounting table. The bolt disassembling and assembling device is smart in concept and reasonable in design, the relative positions of a workpiece bolt and a bolt disassembling and assembling executing mechanism can be flexibly adjusted; the bolt can be efficiently assembled and disassembled, the current condition that the bolt is manually assembled and disassembled with a spanner in the prior art is replaced, the labor intensity is reduced and the work efficiency is improved.

The invention relates to a mechanized demolition device for concrete pouring protective plates of bridge pile foundations, which comprises a bottom plate, a reciprocating excavation device is installed on the front side of the upper end of the bottom plate, and an auxiliary device is installed on the bottom plate. The present invention can solve the problem of manual use of an electric chisel to separate the protective plate from the solidified concrete in the removal process of the existing pile foundation concrete pouring protective plate, and manual assistance is required in the process of removing the protective plate. Existing climbing tools are needed for demolition. Concrete particles splashed during manual work with electric chisels can easily injure the staff. Removing the protective plate with the help of climbing tools has potential safety hazards. The manual removal of the pile foundation concrete pouring protective plate is complicated. , High labor intensity and low work efficiency, can realize the function of mechanized demolition of the pile foundation concrete pouring protective plate.

The invention discloses a bird's-nest device for a transformer substation. The bird's-nest device for the transformer substation comprises a clamp type mechanical arm, a rake type mechanical arm and a net bag supporting device. According to the bird's-nest device for the transformer substation, various bird's nests on electrical equipment in the transformer substation can be electrically detached, so that the drop of the reliability of power supply and the loss of electric quantity caused by power failure of the equipment can be avoided, the bird's nests at hidden parts of the equipment can be flexibly and effectively detached and cleaned, and weeds of the bird's nests can be ensured to prevent from drooping or dropping during the detaching and cleaning operations of the bird's nests, so that accidents of grounding, short circuit or trip of operating equipment of a power grid due to the weeds and bird damages can be avoided, the potential safety hazard endangering the operation of the power grid can be eliminated, and the extra-high voltage power grid can be ensured for safe and reliable operation.

The invention discloses a pipeline removing and installing construction method in a narrow space. According to the construction sequence, the pipeline removing and installing construction method specifically comprises the steps of construction equipment, transportation and hoisting tool fabrication, pipeline removing, removed pipeline carrying, newly-built pipeline transportation, pipeline assembly and installation and test. According to the pipeline removing and installing construction method in the narrow space, pipelines which need to be replaced and pass through the narrow space are laid by adopting buttresses in the narrow space, the pipelines which need to be removed are laid at the lower layer of one side inside a tunnel, and the newly-built pipelines are laid at the upper layers ofpipe piers. The pipeline removing and installing construction method in the narrow space is mainly aimed at the technical deficiencies existing in current construction of laying and replacing the pipelines in the narrow space such as the long and narrow tunnel, the corresponding removing method is adopted for removing of the pipelines in the special environment, and in the situation of guaranteeing pipe removing safe operations, the rapid and effective removing of the pipelines inside the tunnel is realized; and meanwhile, the newly-built pipelines are transported to to-be-installed positionsby utilizing a trolley, and the pipelines are lifted to installation positions to be installed through a lifting device, so that the oil-conveying pipeline laying, transportation, welding and other process technical requirements are realized.

The invention discloses an axial force compensation device acting upon a steel support in foundation pit supporting. The axial force compensation device acting upon the steel support in the foundationpit supporting mainly comprises four connecting rods; the four connecting rods are connected to connecting blocks through bolts in pairs; the connecting rods can rotate around the bolts; the connecting blocks comprise an upper connecting block, a lower connecting block and left and right connecting blocks; the upper connecting block is connected with a steel pipe support; the lower connecting block is connected with an enclosing purlin; the left and right connecting blocks are connected with each other through a threaded rod and a nut; and by adjusting the nut, the distance between the left and right connecting blocks can be adjusted to adjust included angles of a quadrangle. The axial force compensation device acting upon the steel support can be used for foundation pit construction, andcan keep a pre-applied axial force in the steel support in the foundation pit construction process; and meanwhile, problems that stress relaxation of the steel support occurs during supporting structure deformation, the steel support is inconvenient to detach after the foundation pit construction is finished and so on are prevented.

The invention relates to a high-rise residential long-span interval corridor high-altitude formwork steel platform construction method. The construction method includes the following steps: step 1: asteel platform is deep designed and processed; step 2: hoisting and anchoring of a section steel main beam are conducted; step 3: installation of a section steel secondary beam is conducted; step 4: inclined support setting of the section steel main beam is conducted; step 5: plane protection setting is conducted; step 6: external protection frame erection is conducted; step 7: formwork support frame erection is conducted; step 8: beam and slab formwork installation is conducted; step 9: beam and slab reinforcement binding is conducted; step 10: concrete pouring is conducted; step 11: formworkremoval is conducted; step 12: corridor decoration construction is conducted; step 13: peripheral support removal is conducted; and step 14: steel beam removal is conducted. According to the technical scheme, a large-span steel beam is used as a main force-bearing component of a supporting platform, and a certain number of transverse connection steel secondary beams are set among steel beams to form a complete and reliable structural construction formwork steel platform.

The invention relates to a floorslab thickness control tool comprising a pre-burying mechanism, a multifunctional casing mechanism and a locking mechanism. The pre-burying mechanism comprises a fixingsteel plate and a fixing screw rod fixedly connected with the bottom of the fixing steel plate; the upper and lower ends of the fixing screw rod are each provided with corresponding locking externalthreads; the multifunctional casing mechanism comprises a fixing part shaped like an inverted circular truncated cone, and the fixing part shaped like the inverted circular truncated cone is coordinated with the locking external threads on the fixing screw rod through locking nuts installed at the upper and lower ends of the fixing part to be locked on fixing screw rod in a sleeving mode; the locking mechanism comprises a locking fixing part arranged at the bottom of the fixing screw rod in a sleeving manner; and a locking nut is locked and installed at the position, below the locking fixing part, of the fixing screw rod. According to the floorslab thickness control tool, it can be ensured that the vibrating compaction of concrete within the range of the floorslab thickness control tool isachieved effectively, and the convenient removal of the floorslab thickness control tool can be achieved.

The invention aims to provide a disassembling tool of a steering gear outer sphere head and a steering knuckle to effectively disassemble a steering gear and steering knuckle taper fit structure. A connecting supporting portion is disposed in the middles of an upper plate and a lower plate which are in a batten shape, an opening-closing jaw is formed between the ends, on the same side, of the upper plate and the lower plate; and an adjusting mechanism which adjusts the interval between the upper plate and the lower plate is disposed at the other ends, far away from the jaw, of the upper plateand the lower plate. In the scheme, by means of the lever principle, the distance between the ends of the upper plate and the lower plate is adjusted by the adjusting mechanism to become longer, thenthe other ends, that is, the jaw of the upper plate and the lower plate are closed, the upper plate presses down the steering gear outer sphere head so that the sphere head can be separated from the steering knuckle, and thus disassembling of the steering gear outer sphere head and the steering knuckle is finished.

The invention provides a two-handed hand-held tire remover, which includes a hand-held part and a dismantling part. The hand-held part includes a main rod, an adjustment disc, a connecting rod and a support rod; ;The hand-held disassembly lever is vertically fixed on the hand-held end; the adjustment disc is slidingly fitted on the surface of the middle part of the main rod; the connecting rod is evenly distributed and rotatably connected to the disassembly connection end; one end of the support rod is rotatably connected to the edge of the adjustment disc, and the other end is rotatably connected to the middle of the connecting rod ; The disassembly part includes a connection plate, a screw removal cylinder, a disassembly gear and a connection gear. The invention has novel structure and convenient use; it can efficiently remove screws for tires with high removal efficiency; it saves time and labor and is suitable for popularization; it has broad market prospects.

The invention provides a beam bottom formwork detaching mechanism and a beam bottom formwork detaching method, and belongs to the field of building construction. The beam bottom formwork detaching mechanism comprises an under-beam steel formwork, a plurality of vibration steel sleeves and a plurality of vibration assemblies, wherein the under-beam steel formwork is arranged on a concrete base layer, the vibration steel sleeves are arranged on the two opposite lateral sides of the under-beam steel formwork at intervals, standing spaces are formed between every two adjacent vibration steel sleeves, and the vibration assemblies are connected with the vibration steel sleeves in a vibration mode so that the concrete base layer close to the under-beam steel formwork can fall off to be removed. The beam bottom formwork detaching mechanism is reasonable in structure, convenient to use, convenient to detach and high in safety performance and saves manpower and materials.

The pulper device for waste paper material comprises: a container (9) for collecting said waste, having an inlet opening (11) for said waste, at least one pressurized water nozzle (13; 15) which produces a jet of water which intercepts the waste which falls into said container, and a first pump (27) which removes the water and waste from said container.

The invention specifically relates to a method for removing an original pool platform of a newly added net circulation cooling tower. The method for removing the original pool platform of the newly added net circulation cooling tower has the characteristics that a platform of an area to be removed is composed and divided into blocks; the platform after being composed and divided into blocks is cutand chiseled away; two lifting holes are correspondingly formed in the two sides of a divided original top plate; a new frame beam is used as a support point on one end, an electric hoist is used forfixing, the other end is lifted by a crane, hoisting is carried out after a four-panel steel bar is cut off, the electric hoist is removed after the platform plate is basically upright, and the craneis used for hoisting and removing. According to the method for removing the original pool platform of the newly added net circulation cooling tower, an original cooling tower top plate is used as a support base of a new-added frame support system, a new-added cooling tower frame is used as a fixing point of an original removing plate. An original net circulating cooling tower platform plate can be effectively partitioned, cut and removed in a limited working space and hoisting space. The cost is greatly saved, the construction period is shortened, at the same time, the waste of resources is avoided.