800 results about "Abutment" patented technology

A water flosser with a unidirectional sealing device includes a shell and a second check valve. A water storage chamber and a liquid outlet communicated to the water storage chamber are provided inside the shell. The liquid outlet is arranged at a bottom of the water storage chamber. The shell downwards extends along an edge of the liquid outlet to form a first abutment block. A protruding second abutment block is arranged in the shell; the second abutment block is arranged towards the first abutment block. The second check valve is provided with an abutment board. The first abutment block abuts against an upper surface of the abutment board. The second abutment block abuts against a lower surface of the abutment board, to limit the second check valve between the first abutment block and the second abutment block.

The utility model discloses a bridge ship collision prevention active protection device which comprises a laser range finder, a control assembly, a main bridge pier, a main bridge bearing platform, a separation type ship collision prevention facility structure, a polyurethane foam rotary drum and a riverbed, the laser range finder and the control assembly are arranged on the upper portion of the main bridge pier, and the main bridge bearing platform is arranged at the bottom of the main bridge pier. A plurality of separated ship collision prevention facility structures are arranged on the periphery of the main bridge bearing platform on the main bridge piers, polyurethane foam rotating cylinders are arranged on the separated ship collision prevention facility structures, and the other ends, away from the polyurethane foam rotating cylinders, of the separated ship collision prevention facility structures are used for being buried in a riverbed to be fixed. When the distance between the ship and the main bridge pier is detected to be smaller than a certain range through the optical distance measuring instrument, the control assembly controls the gas generator to inflate the gas bag to generate buoyancy, the polyurethane foam rotating drum is pulled to the water surface through the buoyancy to make contact with the ship, and the situation that the ship collides with the main bridge pier and consequently the main bridge pier is damaged is prevented.

The invention relates to a bridge abutment settlement deformation monitoring device and method, and belongs to the field of bridge monitoring, the bridge abutment settlement deformation monitoring device comprises two bearing frames arranged on one side of a bridge pier and a steel wire rope I arranged between the bearing frames and used for supporting a connecting support, and the top of the connecting support is provided with a monitoring mechanism; the monitoring mechanism comprises a plurality of piston cylinders adjustably arranged at the top of the connecting support, piston push rods are slidably arranged at the tops of the piston cylinders, extension rod pieces fixedly connected with the piston push rods are fixedly arranged on one side of the pier, and display sleeves are fixedly arranged on the two sides of the connecting support. The display sleeve is communicated with the piston cylinder body through a connecting pipeline and used for transmitting liquid prefabricated in the piston cylinder body, and a piston sliding block is arranged in the display sleeve in a sliding mode. The double steel wire ropes and the tension jack form an elastic supporting system to buffer vibration, the hydraulic linkage design converts tiny settlement into visual displacement, the spring reset mechanism is matched to improve data reliability, automatic reset is achieved, continuous monitoring is supported, and the monitoring range is expanded.

The invention provides a composite pile foundation structure for road surface rigidity optimization of a road transition section and a design and use method of the composite pile foundation structure, and relates to the technical field of composite pile foundations. The composite pile foundation structure can be applied to an embankment foundation and a bridge abutment pile foundation and comprises a bearing platform, a pile cap, a gasket, an elastic composite plate, replaceable filler, a pile and a pile end self-adaptive deformer. The design and use method of the bridge abutment pile foundation is guided by the load settlement characteristic of the butted roadbed, and the design and use method of the embankment composite pile foundation is guided by the settlement control standard. Design variables comprise the pile length, the pile diameter, the pile number, the compression thickness of the elastic composite plate, the arrangement depth of the replaceable filler, the limit pile side friction resistance of the replaceable filler and the compression modulus of the replaceable material, the structure can optimize the overall rigidity of the road surface on one side of the abutment, the phenomenon of bump of the abutment is effectively avoided, zero-differential settlement is achieved theoretically, and the construction efficiency is improved. And the settlement index can be controlled in the application of an embankment foundation.

The present disclosure provides an abutment structure and an abutment method thereof. The abutment structure includes a body portion, an abutment portion, and an elastic element, so that an elastic abutment space is formed between the body portion and the abutment portion. Alternatively, the abutment structure is provided with a wheel member, so that an elastic abutment space is formed between the abutment portion and the wheel member and the body portion. Smoother movement and effects of abutment and limitation can be achieved through the abutment portion, the wheel member, or cooperation between the abutment portion and the wheel member.

The invention discloses a vibration displacement sensor system for bridge operation monitoring and a use method thereof, and belongs to the technical field of bridge engineering. The system comprises data acquisition ends and data receiving and processing ends, the data acquisition ends are fixed to bridge piers, bridge abutments or the side faces of beam slabs, each data acquisition end comprises a capacitive acceleration sensor, a microwave signal antenna, a double-lithium battery pack and a solar cell panel, and the data receiving and processing ends are installed at stable positions of the two banks of a bridge. Comprising a multi-channel microwave receiving module, an edge computing unit, a 4G / 5G / LoRa / NB-IoT multi-network transmission module and a phase difference computing module. According to the invention, the problems of insufficient stability and poor environmental adaptability of existing data transmission are solved. According to the invention, through integration of temperature compensation, anti-interference communication, intelligent power supply optimization and rapid installation design, high-precision, all-weather and low-power-consumption monitoring is realized.

The utility model relates to the technical field of bridge structures or buildings, in particular to an assembly type seismic mitigation and isolation support with a novel anchoring structure, a lower seat plate, a middle seat plate and an upper seat plate are sequentially arranged from bottom to top, the lower seat plate is of an assembly type structure, and the lower seat plate comprises a lower seat plate base plate, a lower seat plate inserting plate and an anchoring part. The lower seat plate base plate and the lower seat plate inserting plate are connected into a whole, the anchoring part penetrates through the lower seat plate base plate to be connected with the abutment cushion stone, and the anchoring part completely enters the lower seat plate base plate to be used for reducing the assembling difficulty when the assembly type shock absorption and isolation support is installed. According to the utility model, the anchoring part is improved, so that the height of the anchoring part can be reduced while the connecting length is ensured, and the installation is convenient; meanwhile, the anchoring part is optimally designed, the self-locking effect of the anchoring part is improved, and the reliability of the device is improved.

The invention relates to an adjustable variable-rigidity limiting damping device, and belongs to the technical field of bridge construction. Comprising an upper connecting seat plate, a lower connecting seat plate and a limiting damper assembly, and the limiting damper assembly comprises a damper plunger, a damper cover plate, a damper cylinder body, a variable stiffness damping spring and a disc spring. The abutment and the beam body are connected into a whole in the connecting mode. The limiting damper is used for restraining movement of the beam body in the bridge direction, providing longitudinal displacement limitation between the beam body and the abutment and dissipating vibration energy. The device has two operating states with different rigidities, and can meet the requirements under different seismic intensities. Specifically, under the action of different horizontal forces, the device can generate different displacement responses. Meanwhile, by integrating two different damping media, a double energy consumption mechanism is achieved, and the short-distance damping effect is provided under the normal use working condition (small displacement); when an earthquake occurs, the damping effect can be remarkably enhanced under long-distance displacement.

A lifting clamp is provided, comprising a sliding rail, an abutment device that is arranged to be displaceable on the sliding rail, having at least one abutment element for a workpiece, wherein an axis of displacement of the abutment device on the sliding rail is parallel to a direction of spacing between a stand arrangement and the at least one abutment element, a first movement mechanism having a pushing device, having an actuation lever that is coupled to the pushing device to bring about a lifting function of the lifting clamp, a second movement mechanism with a lowering lever to bring about a lowering function, and a third movement mechanism with a release lever for freeing the displaceability of the at least one abutment device on the sliding rail. The lowering lever and / or the release lever is positioned between the actuation lever and the counter-element.

The invention discloses a railway ballastless track steel truss girder end transition structure and a construction method. In order to ensure the safety of train operation, the requirement of railway bridge design on the limited value of the beam end corner is met. The device comprises a steel truss girder, wherein bridge deck overhanging longitudinal beams are rigidly connected to the two longitudinal sides of the steel truss girder respectively; a concrete simply supported beam and a bridge abutment are respectively arranged on two longitudinal sides of the steel truss girder; one side of the concrete simply supported beam is rigidly connected with a concrete simply supported beam longitudinal cantilever; the bridge deck overhanging longitudinal beam on one side is supported on the concrete simply supported beam longitudinal cantilever, and the bridge deck overhanging longitudinal beam on the other side is supported on the bridge abutment. By means of the railway ballastless track steel truss girder end transition structure, the problem that when a railway ballastless track steel truss girder is in transition with a conventional simply supported beam and a bridge abutment, a girder end corner is too large and exceeds a standard limit value can be solved.

A slat roof with two substantially parallel beams with a set of parallel slats between them that are rotatably secured to the beams is disclosed. A first beam comprises a set of recesses that are open towards the topside. Each slat has at its extremities a slat shaft, wherein the first slat shaft rests in a corresponding recess. At least one recess is provided with an abutment and the slat shaft that is positioned in the recess is provided with a locking piece that at its topside at least partially abuts against the abutment. The locking piece and the abutment together ensure vertical locking of the first extremity of the slat.

To provide a grating and a manufacturing method therefor which can prevent tilting and falling out of a main member even when a large force from a heavy vehicle is applied, and which can also reduce a burden of inventory management of component members such as a side abutment member.SOLUTION: In a metallic grating in which multiple band plate-like main members 1 are arranged in parallel with each other with a band width direction as a vertical direction and side abutment members 3 are fixed to both sides thereof, the side abutment member 3 is a bend-processed product of a side view reverse L-shaped member having, in a bend region 33 from a vertical part 31 to a horizontal part 32 including a part of the vertical part, an elongated hole 35 serving as a connection point with the main member, such that by fixing the side abutment member 3 to both sides of the main member 1, a lower part 16 on both sides of the main member abuts against the vertical part 31 while an upper part 17 protruding more than the lower part is inserted into a vertical part 31 side of the elongated hole 35, and an overhanging upper end portion 171 of the upper part 17 fills a horizontal part 32 side of the elongated hole 35 so that an upper end surface 171a thereof is flush with an upper surface 32a of the horizontal part 32.SELECTED DRAWING: Figure 1

The invention discloses a dam abutment slope structure health monitoring system and method based on distributed strain optical cables. Comprising the following steps: obtaining zero strain data of each distributed measuring point of the dam abutment slope by subtracting initial stable strain data of each distributed measuring point of the dam abutment slope from initial stable temperature data of the corresponding distributed measuring point of the dam abutment slope; obtaining real-time strain data of each distributed measuring point of the dam abutment slope by subtracting the strain data at each moment of each distributed measuring point of the dam abutment slope from the temperature data at the corresponding moment of each distributed measuring point corresponding to the dam abutment slope; performing strain calculation according to the real-time strain data of each distributed measuring point of the dam abutment slope and the zero strain data of the corresponding distributed measuring point of the dam abutment slope to obtain the strain variation of each distributed measuring point of the dam abutment slope along with the time change; and evaluating the structural health state of the dam abutment slope according to the development trend of the strain variation of each distributed measuring point of the dam abutment slope along with the time change and a preset periodic environment interference curve.

The utility model relates to the technical field of air pressure testing machines, in particular to an air tap sealing mechanism for an air pressure testing machine, which mainly comprises a rack, a detection assembly and a positioning assembly fixedly mounted on the top surface of the rack, a product arranged on the inner wall of the positioning assembly, an air tap arranged on the bottom surface of the product, and a sealing mechanism arranged above the rack, and the fixing mechanism is arranged below the positioning assembly. When an air tap is connected with a sealing cylinder, a sealing gasket preliminarily seals air holes in the two sides of the air tap, a connecting frame is rotated, when the connecting frame is rotated, the relative positions of an abutting block and a connecting groove are rotated, the connecting groove is away from the abutting block, the inner wall of the connecting frame makes contact with the side face of the abutting block, the abutting block is pushed to move by a short distance, and the abutting block extrudes the sealing gasket; the sealing effect of the sealing gasket on the air holes in the two sides of the air tap is enhanced, when the air pressure in the air tap is increased, leakage is not prone to occurring at the air tap, and the sealing quality is improved.

The utility model discloses an alignment device for mounting a prefabricated bridge body and a bridge pier, which comprises a guide piece and a limiting rod which are sleeved on the outer sides of a plurality of reinforcing steel bars and are mutually spliced for use, the side wall of the guide piece is provided with a side notch for hooping the reinforcing steel bars at the opposite angles of the bridge pier, and the guide piece is divided into a main sleeve, an auxiliary sleeve and a table sleeve according to functions, a hinge shaft is arranged between the main sleeve and the auxiliary sleeve, and the table sleeve guides the sleeve to slide into the main sleeve. According to the aligning device for installing the prefabricated bridge body and the bridge pier, the four corner sleeves are used for rapid sliding alignment through the gathering function of the inner wall of the table sleeve, reinforcing steel bars in the main sleeve can be conveniently inserted into the sleeves for accurate butt joint, the purpose that the guiding function can be achieved before inserting and assembling is achieved, and the assembling efficiency is improved. Even if the external environment causes certain deviation of the casing pipe, the accurate butt joint of the casing pipe and the reinforcing steel bar is not interfered, the safety of the casing pipe in the using process is guaranteed, and the influence on grouting work is avoided.

1. The name of the design product: telescopic device (modular easy-to-maintain D240 type). 2. The use of the design product: used for the expansion joint between the two beam ends, the beam end and the abutment or the hinged position of the bridge. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

To provide a water leakage prevention structure and a water leakage prevention method of a water pipe bridge capable of suppressing malfunction due to breakage of an expansion cover.SOLUTION: In a water leakage prevention structure of a Suikan-kyo Bridge in which a water leakage prevention device 10 for preventing water leakage due to detachment of a pipe body 1 is attached to a pipe joint JT in which end portions of the pipe body 1 forming a pipeline of a bathroom 90 are connected to each other, the water leakage prevention device 10 includes a flexible pipe 14 as a metal expansion cover surrounding the pipe joint JT, and an external fitting member 11,12 joined to both end portions of the flexible pipe 14 in a pipe axis direction and externally fitted to the pipe body 1 in a watertight manner. water pipe bridge, the water leakage preventing device 10 is arranged in an area X sandwiched by a pair of supports 70 in the same abutment 91.SELECTED DRAWING: Figure 2

This invention discloses a multi-objective optimization method for high-pile piers and abutments based on an improved Grey Wolf algorithm. The method includes the following steps: establishing a design variable with pile inclination and torsion angle as the design variables, and simultaneously minimizing the standard deviation of pile driving force, maximum pull-out force, and maximum pile bending moment as the optimization objective; designing an integer index discrete encoding strategy to map discrete inclination and torsion angle parameters in the project to integer indices; using an improved multi-objective Grey Wolf optimization algorithm for solving the problem, efficiently searching for Pareto optimal solutions by introducing a nonlinear convergence factor, external archive maintenance, and a leader selection mechanism based on crowding distance; and finally outputting a series of pile placement schemes that achieve a balance between pile driving force uniformity, pull-out force, and bending moment control. This invention achieves collaborative optimization of multiple engineering objectives, with strong algorithm adaptability and significant optimization effects, providing scientific and efficient design decision support for high-pile piers and abutments and other pile foundation projects.

The application discloses a construction method of a reinforced concrete prefabricated cover plate and relates to the field of bridge pier construction. The method comprises the following steps: manufacturing a concrete prefabricated plate; hoisting the concrete prefabricated plate to the top of a bridge pier for arrangement; placing a second type of steel at a manhole; and pouring concrete on the top of the bridge pier. The concrete prefabricated plate with the first type of steel inserted into two ends is arranged on the top of the bridge pier. The first type of steel at the two ends of the concrete prefabricated plate is in abutment with the bridge body on the top of the bridge pier. The concrete prefabricated plate is not in contact with the bridge body of the bridge pier. The concrete prefabricated plate is immersed in the hollow part of the bridge pier. The height of the top of the concrete prefabricated plate is not higher than the height of the bridge pier. The manhole is arranged on the top of the bridge pier. The second type of steel is placed at the manhole instead of the concrete prefabricated plate. Finally, the concrete is poured on the top of the bridge pier to complete the capping work of the bridge pier, so that the construction risk is reduced.

The utility model relates to the technical field of double-X-pillar hoisting, and discloses an air cooling tower double-X-pillar hoisting device, which comprises an assembling component, the assembling component is used for being in close contact with double X pillars, the assembling component comprises a connecting ring, a connecting rope, a supporting rod and an abutting block, the connecting ring is symmetrically arranged, and the connecting ring is composed of two identical hoop bodies. The hoop bodies are connected through fasteners, the connecting ropes are connected with the corresponding connecting rings, the connecting ropes are connected with a hoisting device, the supporting rods are arranged between the connecting rings in an array mode, each supporting rod is elastically connected with a plurality of abutting blocks, and the hoop bodies composed of the connecting rings are slidably connected with first sliding rods. Each first sliding rod is fixedly connected with a contact block, the two ends of each first sliding rod are sleeved with a first spring and a second spring respectively, friction force is generated between the double-X supporting column and a friction block through mutual cooperation of components in the assembling assembly, and therefore the problem that a rope and the double-X supporting column slip off in the hoisting process is avoided.

The application discloses a foundation pit supporting structure, relates to the technical field of foundation pit supporting, and comprises a supporting assembly and a reinforcing assembly. The supporting assembly comprises a plurality of base units and a plurality of supporting units. The base units are in abutment with the pit wall on one side of the foundation pit and the pit wall at the bottom. The plurality of supporting units are connected with the plurality of base units, the plurality of supporting units are connected with each other, and the supporting units are in abutment with the pit wall on one side of the foundation pit. The reinforcing assembly comprises a plurality of fixing seats and a plurality of reinforcing pieces. The fixing seats are connected with the foundation on one side of the foundation pit, and the plurality of supporting units are connected with the fixing seats. The reinforcing pieces are located on one side of the supporting assembly, one end of the reinforcing pieces is connected with the fixing seats, and the other end of the reinforcing pieces is connected with the base units. The application can improve the structural strength of the foundation pit supporting structure as a whole and facilitate subsequent construction of construction personnel in the foundation pit.

The present application relates to cutting processing technical field, specifically to a kind of dust collector steel structure frame cutting control equipment and method, dust collector steel structure frame cutting control equipment, including rack, power device, guide mechanism and saw blade;Saw blade rotation is set in power device;Guide mechanism includes support arm, back pressure unit and at least two guide bearings, support arm is used to guide saw blade to fold to vertical state;At least two guide bearings are rotationally installed on support arm around vertical axis, and respectively located at the two sides of the lower side of saw blade, for guiding saw blade to pass through;By setting back pressure unit and saw blade abutment, back pressure belt and saw blade are surface contact, compared with the mode that bearing or roller is contacted with saw blade in prior art, contact area is larger, and wear probability is lower;And the back pressure belt that is obliquely arranged is continuously replaced with the contact position of saw blade when rotating under the frictional contact with saw blade, further reduce the wear of back pressure belt.

A reusable precast concrete slab connecting structure and a mounting method therefor, relating to the technical field of prefabricated buildings. The connecting structure comprises precast concrete slabs and a second connecting assembly. Each precast concrete slab comprises concrete, steel bars located in the concrete, and a first connecting member exposed out of the concrete, the first connecting member has a first side face and a second side face which are oppositely arranged, the first side face of the first connecting member is connected to the steel bars, and second side faces of first connecting members of adjacent precast concrete slabs are in direct abutment. The second connecting assembly is configured to connect and fix adjacent first connecting members, and the second connecting assembly is detachably connected to the first connecting members. The precast concrete slab connecting structure provided in the present invention solves the problem that the integrally assembled precast floor cannot be disassembled, facilitating repeated utilization of resources. Moreover, the second connecting assembly is configured to connect and fix the first connecting members, reducing the risk of local crushing of concrete at a connecting position, thereby prolonging the service life of the precast concrete slabs.

The application relates to a super column pouring formwork system and a construction method, and belongs to the field of concrete building construction, which comprises a formwork, a reinforcing framework and a supporting surrounding purlin, the formwork is located on one side of the reinforcing framework, further comprises a tension screw rod, the reinforcing framework comprises a steel column cylinder, the supporting surrounding purlin is located on the side of the formwork away from the reinforcing framework, one end of the tension screw rod is connected with the steel column cylinder, the other end penetrates through the formwork and the supporting surrounding purlin and is threadedly connected with a tension nut, and the tension nut is in abutment with the side of the supporting surrounding purlin away from the reinforcing framework. In the concrete pouring process, the tension screw rod is connected with the reinforcing framework, the length requirement of the tension screw rod is reduced, the material consumption is low, and the effect of reducing the material cost is achieved.

The application relates to a short-line method for assembling and pushing installation of a full-precast composite beam, wherein the full-precast composite beam is supported on the top of two abutments and a plurality of piers, the full-precast composite beam comprises a plurality of composite beam components spliced along the transverse bridge direction, the composite beam component comprises a plurality of composite beam segments spliced along the longitudinal bridge direction, the composite beam segment comprises a bridge deck segment composed of two spliced concrete bridge deck plates and a steel beam segment composed of two spliced steel beams, and the bridge deck segment is arranged on the steel beam segment; during construction, the composite beam segments are precast in a factory, then transported to the abutment and spliced on the splicing platform in the longitudinal direction, the full-precast composite beam behind the splicing is transported to the bridge site through a pushing construction method, and a cast-in-place zone is arranged between the concrete bridge deck plates of the full-precast composite beam to connect the full-precast composite beams into a whole in the transverse bridge direction. The application has the advantages of simple structure, reasonable design, good durability, reduced steel consumption, simple method and great application prospect.

The utility model relates to the technical field of bridge stabilizing structures, and discloses an ultra-large longitudinal slope continuous multi-span steel bridge stabilizing structure which comprises a bridge body, a bridge abutment ear wall and a bridge abutment wall back are arranged on one side of the bridge body, and an existing bridge is arranged on the other side of the bridge body. The bridge body, the bridge abutment ear wall, the bridge abutment wall back, the existing bridge, the supporting bin and the side supporting arms are used in cooperation, the effect of reinforcing and supporting the bridge body can be achieved, and the bearing capacity of the bridge body is greatly enhanced through the supporting bin, the side supporting arms, a fixing plate, first steel bars, first stirrups, concrete and the like; compared with direct steel structure supporting, the steel-concrete structure supporting effect is better, when the truck does not walk in the middle, the bottoms of the beret pieces of the bridge body can be supported in a force dispersing mode, excessive stress of the single beret piece is avoided, the two side supporting arms and the bridge body are triangular, stability is higher, shaking caused by insufficient side supporting is avoided, and practicability is achieved.

The utility model relates to a concrete material split charging device, in particular to a belt type automatic material distributing hopper which comprises a support of a square frame structure, a weighing sensor is fixedly arranged on the upper surface of the support, a fixing frame of a square frame structure is fixedly arranged on the weighing sensor, and a material distributing hopper of a funnel structure is fixedly arranged in the fixing frame. A discharging port of the material distributing hopper is of an inclined face structure, a conveying belt mechanism abuts against the discharging port of the material distributing hopper, and a gate plate is rotationally arranged on the side wall of the material distributing hopper. The conveying belt mechanism comprises a connecting frame fixedly arranged on the fixing frame in the vertical direction, a conveying belt arranged on the connecting frame and connected with a discharging port of the material distributing hopper in an abutting mode, and a motor fixedly arranged on the fixing frame and used for providing power for the conveying belt. The blanking device is high in blanking speed, and the blanking quantity can be accurately controlled.

The invention relates to the field of bridge engineering, in particular to an integral type oblique crossing abutment-H-shaped steel pile-soil interaction anti-tilting test loading device. The device comprises an integral skew abutment-H-shaped steel pile foundation test piece, a constraint base, a loading device, an anti-tilting device and the like. Fixing bolt holes are formed in the bottom of the constraint base, and the integral oblique crossing bridge abutment-H-shaped steel pile foundation test piece is fixedly connected with the soil box and the ground through high-strength ground anchor bolts. And the transmission shaft is connected with the bridge abutment through a B18 screw rod and a steel plate. The transmission shaft is connected with the servo motor through a coupling so as to realize torque loading. According to the device, the strength and durability of all the parts are ensured through precision machining and anti-corrosion treatment. After installation is completed, calibration and debugging are carried out, all bolt fastening conditions are checked, and system parameters are optimized through a no-load test and a small-load loading test, so that design requirements are met. The device can provide accurate and stable reciprocating loading, is suitable for a bridge abutment torsion resistance test, improves the test precision and reliability, and provides technical support for bridge structure design and safety evaluation.