38results about How to "Small vertical displacement" patented technology

The invention relates to a tensile mechanism for stack rubber shock-insulating support seats, which is characterized in that stack rubber shock-insulating support seats are arranged between an upper structure and a lower structure, an upper reaction arm and a corresponding lower reaction arm are also arranged between the upper structure and the lower structure, the top end of the upper reaction arm is fixedly connected with the upper structure, and the bottom end of the lower reaction arm is fixedly connected with the lower structure; the bottom end of the other stack rubber shock-insulating support seat is connected with a cross arm of the bottom of the upper reaction arm, and the top end of the other stack rubber shock-insulating support seat is connected with a cross arm at the top of the lower reaction arm; the upper reaction arm, the lower reaction arm and the other stack rubber shock-insulating support seat form a reaction stack rubber shock-insulating support seat set. The invention has the advantages of simple structure and easy design and manufacture. The tensile mechanism can improve the tensile capability of shock-insulating layers of buildings, reduces the vertical displacement of shock-insulating layers, lowers earthquake response of the upper structure, and can be applied and popularized to large and wide structures.

An electromagnetic radiation sensor that exhibits improved performance by virtue of an ability to tune its sensitivity is disclosed. The electromagnetic radiation sensor incorporates thermal actuators that act in opposition to one another, but which have a slight difference in responsivity. A temperature controller is used to tune the sensitivity of the electromagnetic radiation sensor by controlling the temperature of the substrate on which the sensor is formed.

The double spherical shock absorbing and insulating bearer for railroad bridge includes an upper bearing plate, a middle bearing plate and a lower bearing plate superposed successively and sliding teflon plates set between bearing plates. The lower bearing plate has fixed shearing force member. The middle bearing plate has an upper spherical surface in small curvature radium for connection to the upper bearing plate through spherical spin friction, and a lower spherical surface in great curvature radium for connection to the lower bearing plate through spherical sliding friction. In addition, there are also a top basin on the upper bearing plate and a sliding teflon plate in between. the present invention has obvious shock absorbing and insulating effect, easy control and regulation, capacity of ensuring structural safety and lowering engineering cost, and other features.

The invention provides a beam bridge reinforcing structure and reinforcing method. The beam bridge reinforcing structure comprises an arched steel pipe component, I-beams and steel inclined struts. The two ends of the arched steel pipe component are fixed to two adjacent piers of a bridge body. A middle section of the arched steel pipe component is fixedly connected with the steel inclined struts. The steel inclined struts are fixedly connected with the I-beams. The bottom of a bridge deck of a beam bridge is continuously supported through upper flanges of the I-beams. By the adoption of the reinforcing structure, stress of an original beam bridge is optimized, the bending moment of the beam bridge is remarkably reduced, the situation that the beam bridge further cracks under the overloading effect is effectively prevented, part of cracks can be partially closed, stressed reinforcing steel bars in the beam bridge are protected against exposure and corrosion, the load burdens and operation risks of the beam bridge are remarkably reduced, the structure anti-bending and anti-shearing bearing capacity and the durability performance of the beam bridge are improved, and the service life of the bridge is effectively prolonged.

The invention relates to a three-dimensional pull rod type belleville spring shock insulation support seat. The support seat comprises an upper connecting plate, a lower connecting plate and four pull rod back pressure type belleville spring dampers, wherein the upper connecting plate and the lower connecting plate are parallel to each other, the four pull rod back pressure type belleville spring dampers are arranged between the upper connecting plate and the lower connecting plate, and connecting rods on both ends of each pull rod back pressure type belleville spring damper are connected with the upper connecting plate and the lower connecting plate respectively by universal ball joints, so that a quadrangular frustum pyramid structure of which every two opposite side surfaces are symmetrical is formed. The three-dimensional shock insulation support seat has the effect of overturning resistance, and real three-dimensional shock insulation can be realized.

The invention discloses a loess cave dwelling reinforcing device. The loess cave dwelling reinforcing device comprises cave dwellings, wood arch frames and steel strips, wherein a ventilation opening is formed in the arch top of each cave dwelling, an air catcher is mounted on each ventilation opening, dehumidification sterilizers are arranged in the cave dwellings, the wood arch frames are mounted in the cave dwellings, collapse warners are fixed on the wood arch frames, the steel strips are laid on the central axes of the tops of the wood arch frames, and the bottoms of the wood arch frames are fixed on base stones and are fixed at the bottoms of the cave dwellings through anchor rods. The loess cave dwelling reinforcing device has the advantages that the loess cave dwelling reinforcing device is simple in structure, reasonable in design, low in manufacturing cost, safe, reliable and suitable to popularize and use; by combining loess cave dwelling distribution characteristics with local economic conditions, the loess cave dwelling reinforcing device applicable to the countryside is used for improving bearing capacity and deformation capacity of the cave dwellings; a plurality of wood arch frames are arranged in the cave dwellings, the steel strips are mounted on the tops of the wood arch frames, and a soil mass between each two adjacent wood arch frames is transferred in soil particles due to normal stress to form load-bearing arches resistant to vertical tension, so that vertical displacement of the arch top soil mass is benefited.

The invention relates to a pull rod type composite spring three-dimensional shock isolation support. The support comprises an upper connecting plate, a lower connecting plate and four pull rod back pressure type composite spring shock absorbers arranged between the upper connecting plate and the lower connecting plate, wherein the upper connecting plate and the lower connecting plate are parallel to each other. Connecting rods at the two ends of each pull rod back pressure type composite spring shock absorber are separately connected with the upper connecting plate and the lower connecting plate through universal balls to form a quadrangular frustum pyramid structure with every two opposite side faces symmetrical. The three-dimensional shock isolation support can achieve three-dimensional shock isolation in a real sense and has the effect of overturning resistance.

An electromagnetic radiation sensor that exhibits improved performance by virtue of an ability to tune its sensitivity is disclosed. The electromagnetic radiation sensor incorporates thermal actuators that act in opposition to one another, but which have a slight difference in responsivity. A temperature controller is used to tune the sensitivity of the electromagnetic radiation sensor by controlling the temperature of the substrate on which the sensor is formed.

The invention relates to a three-dimensional composite spring shock insulation support seat. The support seat comprises an upper connecting plate, a lower connecting plate and four back pressure type composite spring dampers, wherein the upper connecting plate and the lower connecting plate are parallel to each other, the four back pressure type composite spring dampers are arranged between the upper connecting plate and the lower connecting plate, and connecting rods on both ends of each back pressure type composite spring damper are connected with the upper connecting plate and the lower connecting plate respectively by universal ball joints, so that a quadrangular frustum pyramid structure of which every two opposite side surfaces are symmetrical is formed. The three-dimensional shock insulation support seat has the effect of overturning resistance, and real three-dimensional shock insulation can be realized.

The invention relates to a three-dimensional belleville spring shock insulation support seat. The support seat comprises an upper connecting plate, a lower connecting plate and four back pressure type belleville spring dampers, wherein the upper connecting plate and the lower connecting plate are parallel to each other, the four back pressure type belleville spring dampers are arranged between the upper connecting plate and the lower connecting plate, and connecting rods on both ends of each back pressure type belleville spring damper are connected with the upper connecting plate and the lower connecting plate respectively by universal ball joints, so that a quadrangular frustum pyramid structure of which every two opposite side surfaces are symmetrical is formed. The three-dimensional shock insulation support seat has the effect of overturning resistance, and real three-dimensional shock insulation can be realized.

The invention relates to a tensile mechanism for stack rubber shock-insulating support seats, which is characterized in that stack rubber shock-insulating support seats are arranged between an upper structure and a lower structure, an upper reaction arm and a corresponding lower reaction arm are also arranged between the upper structure and the lower structure, the top end of the upper reaction arm is fixedly connected with the upper structure, and the bottom end of the lower reaction arm is fixedly connected with the lower structure; the bottom end of the other stack rubber shock-insulating support seat is connected with a cross arm of the bottom of the upper reaction arm, and the top end of the other stack rubber shock-insulating support seat is connected with a cross arm at the top of the lower reaction arm; the upper reaction arm, the lower reaction arm and the other stack rubber shock-insulating support seat form a reaction stack rubber shock-insulating support seat set. The invention has the advantages of simple structure and easy design and manufacture. The tensile mechanism can improve the tensile capability of shock-insulating layers of buildings, reduces the vertical displacement of shock-insulating layers, lowers earthquake response of the upper structure, and can be applied and popularized to large and wide structures.

The invention belongs to the technical field of shock isolation, in particular to an overturn preventing device of a building shock isolation support. The device comprises a transverse buckling member, a longitudinal buckling member, an upper pre-embedding member and a lower pre-embedding member. The tops of the transverse buckling member and longitudinal buckling member are of box beam structures, and two sides of the bottoms are provided with baffles; high damping rubber blocks are fixed to the near ends of the transverse buckling member and longitudinal buckling member, and the tail ends of the baffles are fixed to T-shaped reinforcement plates; the transverse buckling member and the longitudinal buckling member are arranged in a crossed manner horizontally, and the transverse buckling member is located above the longitudinal buckling member; a box type connector is fixed above the longitudinal buckling member; the bottom of the transverse buckling member is fixedly connected to the lower embedding member, and the box type connector is fixedly connected to the upper embedding member. The overturn preventing device is reliable in structure and convenient to install, the shock isolating performance is not affected, vertical bearing force and tensile stress are provided during strong shocks, the shock isolation support is protected from being damaged by vertical tensile stress and horizontal shearing stress, and overturning hazards caused by building gravity center shifting can be avoided effectively.

The invention relates to the technical field of tree pruning, in particular to a crawling device for a pruning robot. The device comprises a plurality of crawling units and T-shaped connecting blocks; the crawling units are vertically connected layer by layer through the T-shaped connecting blocks into a parallelogram, the crawling units at the uppermost end and the lowermost end are movably arranged on the side walls of vertical beams through pin shafts, and the T-shaped connecting blocks are arranged at the bottoms of the crawling units through rotating shafts; each crawling unit comprises an arc-shaped sheet, an arc-shaped sliding rod, a pressure spring, a tension spring and an adjusting unit; the upper wall of each arc-shaped sheet is provided with an arc-shaped groove, a plurality of rectangular grooves are formed in the side walls in the diagonal direction sequentially, and the lower side walls of the arc-shaped sheets are provided with the T-shaped connecting blocks. The device solves the problems that existing manual pruning has potential safety hazards and requires large space during large-scale mechanical operation and environment damage is easily caused; the defect that large-scale motor vehicles cannot enter a narrow area for pruning trees is overcome effectively, and manpower and material resources are saved.

The invention relates to the technical field of tree pruning, in particular to a tree climbing robot for pruning. The tree climbing robot for pruning comprises a power component, climbing devices anda pruning component, wherein the power component is arranged on a pruned tree through the multiple climbing devices, and the pruning component is arranged on the power component; the climbing devicesare movably connected with the power component, the whole shape of the climbing devices is parallelogram when the climbing devices are not installed, the shape of the climbing devices is changed fromthe parallelogram to S shape when the power component is arranged on the tree through the climbing devices, the S-shaped climbing devices can fix the power component on the trunk through shrinking deformation, the power component can drive the climbing devices to spirally lift and drop, the problems of potential safety hazard of existing manual pruning, need of large space during operation of a large machine and high probability of environment damage are solved, the defect that a large motor vehicle cannot enter a narrow area for pruning trees is effectively overcome, and manpower and materialresources are saved.

The invention aims to overcome at least one defect of the prior art and provides a propelling method for planar gliding of a shield tunneling machine. The propelling method comprises the steps that when a stretchable device stretches for propelling, a resistance-increasing assembly is started to increase the resistance, so that the acceleration of the shield tunneling machine relative to a base plate is greater than the acceleration of a supporting frame relative to the ground; and when the stretchable device retreats, the resistance-increasing assembly is started to reduce the resistance, sothat the acceleration of the shield tunneling machine relative to the base plate is smaller than the acceleration of the supporting frame relative to the ground. According to the propelling method, the maximum static friction between a propelling device and the ground in different propelling processes can be achieved only by adjusting the resistance of the resistance-increasing assembly, the stress can be switched to the resistance-increasing assembly or a gliding assembly by adjusting the height of the resistance-increasing assembly, and operation is easy; and the abrasion of the bottom of the propelling device is reduced, and the service life is prolonged.

The present invention aims at overcoming at least one defect of the prior art, and provides a planar sliding propulsion method of a shield machine. The propulsion method is: when the telescopic device is stretched and propelled, the resistance increasing component is activated to increase the resistance, so that the shield The acceleration of the shield machine relative to the seat plate is greater than the acceleration of the support frame relative to the ground; when the telescopic device shrinks, the resistance increasing component is activated to reduce the resistance, so that the acceleration of the shield machine relative to the seat plate is smaller than the acceleration of the support frame relative to the ground. The propulsion method of the present invention only needs to adjust the resistance of the resistance-increasing component to realize the maximum static friction force between the propulsion device and the ground during different propulsion processes, and the adjustment of the height of the resistance-increasing component can realize the sliding of the resistance-increasing component The force conversion between components is easy to operate, and the wear on the bottom of the propulsion device is reduced, and the service life is improved.

The invention discloses a power supply module mounting part and a module power supply, belongs to the technical field of module power supply assembly, and solves the problem that the mounting of a power supply module in the prior art cannot meet the size allowance and the vibration allowance of a power supply module and circuit board mounting structure. The power supply module mounting part comprises a shell, a first circuit board, a plug-in electric connector, a second circuit board and a power module, the first circuit board, the plug-in electric connector, the second circuit board and the power module are sequentially connected in a stacked mode, the first circuit board is fixedly connected with the shell, and the power module is arranged on the bottom plate of the shell. According to the power supply module mounting part and the module power supply, the size allowance and the vibration allowance of the power supply module and the first circuit board mounting structure can be met.

The invention belongs to the technical field of automobile fixtures, and is specifically a quick positioning fixture for special-shaped pipe fittings of automobiles, which includes a box body, a support plate, elastic parts, clamping parts and feet; The No. 1 rotating shaft and the No. 2 rotating shaft rotate in opposite directions, driving the cams on both sides to swing toward the support plate at symmetrical entry points, and driving the working surfaces of the cams on both sides to touch against the elastic retaining plate at the same time, and the elastic retaining plate and the supporting plate are tightly fitted. Realize the clamping of the support plate; the force points on both sides of the support plate are on the same plane to prevent the uneven force of the support plate from twisting; the elastic stopper prevents the cam from swinging and directly pushes the support plate, and the hinge prevents the vertical movement of the elastic stopper to prevent The support plate moves vertically; the fixed block and the positioning block can be adjusted according to the special-shaped pipe fittings, so that the fast positioning of the special-shaped pipe fittings can reduce the types of fixtures; the elastic parts make the action surface of the positioning block form a whole, and realize the rapid replacement of special-shaped pipe fittings of the same specification.

The present invention provides a single-degree-of-freedom large-stroke nano-displacement positioning platform based on flexible hinges, including a platform main body. There are four flexible hinges on the platform main body, and the platform main body is divided into A zone, B zone and C zone by the four hinges. , four parts of D area, the A area is a moving area, the B area and C area are force deformation areas, and the D area is a fixed area; the two ends of the main body of the platform are provided with a left blind hole and a right blind hole, The bottom of the left blind hole is a smooth conical surface, and a spring preload assembly is installed inside it, and the bottom of the right blind hole is also a smooth conical surface, and a piezoelectric ceramic assembly is installed inside it, and the spring preload assembly is installed inside it. The component and the piezoelectric ceramic component constitute the amplification mechanism. The invention realizes relatively large vertical displacement under the condition of small vertical platform size, and can meet the requirement of occasions with small space but large vertical travel.

The invention relates to a spiral spring three-dimensional shock-isolation support. The support includes an upper connection plate and a lower connection plate which are parallel to each other; and four back pressure type spiral spring dampers arranged between the upper connection plate and the lower connection plate, wherein two ends of a connection rod of each back pressure type spiral spring damper are connected to the upper connection plate and the lower connection plate through universal bulbs to form a quadrangular frustum structure having two opposite side surfaces which are symmetrically to each other. The three-dimensional shock-isolation support can achieve a real sense of three-dimensional shock-isolation, and has an anti-overturning function.

The invention aims to overcome one or more defects in the prior art, and provides a plane sliding propelling device for a shield tunneling machine. The plane sliding propelling device comprises a supporting frame, a seat plate arranged on the upper side of the supporting frame and used for supporting the shield tunneling machine, a plurality of sliding assemblies, a plurality of resistance increasing assemblies and a counter-force device arranged at the tail end of the supporting frame, wherein the multiple sliding assemblies and the multiple resistance increasing assemblies are arranged on the lower side of the supporting frame; a telescopic device is arranged at one end of the shield tunneling machine, when the telescopic device extends for propelling, the resistance increasing assemblies are started to increase resistance, and thus the accelerated speed of the shield tunneling machine relative to the seat plate is greater than the accelerated speed of the supporting frame relative to the ground; and when the telescopic device retracts back, the resistance increasing assemblies are started to decrease the resistance, and thus the accelerated speed of the shield tunneling machinerelative to the seat plate is smaller than the accelerated speed of the supporting frame relative to the ground. According to the plane sliding propelling device, according to the different propellingprocesses, friction force between the propelling device and the ground is changed, continuous propelling can be achieved, energy consumption is further saved, and the construction cost is lowered.

The invention discloses a supporting method of a steel bridge beam and a beam-type steel bridge utilizing the same. A bridge supporting part is of a steel structure, has the advantages of light deadweight, high bearing strength and small contraction distortion adapting to the influence of temperature change, can be produced and manufactured in a plant, and is high in installation accuracy; the bottom support of the beam-type steel bridge is a fixed wheel, has the advantages of low friction, large bearing capacity, convenience in replacement and the like, and can better realize axial displacement caused by various reasons; the top of a bridge abutment and a bridge pier is provided with a large groove, so as to effectively prevent the slippage of the beam-type steel bridge; and in order to prevent a bridge bearing from lateral movement, a simply support side wheel is arranged between the lateral of the bridge bearing and the large groove and used as a lateral limiting device.

The invention aims to overcome one or more defects in the prior art, and provides a plane sliding propelling device for a shield tunneling machine. The plane sliding propelling device comprises a supporting frame, a seat plate arranged on the upper side of the supporting frame and used for supporting the shield tunneling machine, a plurality of sliding assemblies, a plurality of resistance increasing assemblies and a counter-force device arranged at the tail end of the supporting frame, wherein the multiple sliding assemblies and the multiple resistance increasing assemblies are arranged on the lower side of the supporting frame; a telescopic device is arranged at one end of the shield tunneling machine, when the telescopic device extends for propelling, the resistance increasing assemblies are started to increase resistance, and thus the accelerated speed of the shield tunneling machine relative to the seat plate is greater than the accelerated speed of the supporting frame relative to the ground; and when the telescopic device retracts back, the resistance increasing assemblies are started to decrease the resistance, and thus the accelerated speed of the shield tunneling machinerelative to the seat plate is smaller than the accelerated speed of the supporting frame relative to the ground. According to the plane sliding propelling device, according to the different propellingprocesses, friction force between the propelling device and the ground is changed, continuous propelling can be achieved, energy consumption is further saved, and the construction cost is lowered.

The invention discloses a high-pressure jet grouting combined uplift pile for an existing building and a construction method. The combined uplift pile comprises a high-pressure jet grouting pile and areinforcement body. The high-pressure jet grouting pile comprises a pile end, a pile body and a pile top. The reinforcement body comprises a steel pipe and a steel strand. One end of the steel pipe extends into the pile end, and the other end of the steel pipe reversely extends to be flush with the pile top and then is fixed to a bearing platform. The steel strand extends out of the top end of the steel pipe and then penetrates out of the bearing platform. The part, located in the pile top, of the steel strand is fixed to a lower anchor plate through a lower anchorage device. The part, penetrating out of the bearing platform, of the steel strand is fixed to an upper anchor plate through an upper anchorage device. According to the uplift pile combining the steel pipe and high-pressure jetgrouting, the characteristics of respective materials can be brought into play, large uplift bearing force can be provided, and the uplift pile is relatively economical compared with a traditional uplift pile. Prestress is applied to the steel pipe through the steel strand, the uplift pile is actively stressed, the vertical displacement of a foundation slab can be conveniently reduced, and structure cracking is avoided.

The present invention relates to the technical field of tree pruning, in particular to a crawling device for a pruning robot, which includes a crawling unit and a T-shaped connecting block; multiple crawling units are connected up and down through the T-shaped connecting block to form a "parallelogram", located at the most The uppermost and lowermost crawling units are movably arranged on the side wall of the vertical beam through the pin shaft, and the T-shaped connecting block is arranged on the bottom of the crawling unit through the rotating shaft; the crawling unit includes an arc piece, an arc slide bar, a pressure Spring, tension spring and adjustment unit; the upper wall of the arc-shaped sheet is provided with an arc-shaped groove, and the side wall is sequentially provided with a plurality of rectangular grooves along the diagonal direction, and the lower side wall of the arc-shaped sheet is provided with a T Type connecting block, which solves the existing safety hazards of artificial pruning and the large space required for large-scale mechanical operations, which is easy to cause environmental damage, and effectively overcomes the pruning of trees in small areas where large motor vehicles cannot enter. , saving manpower and material resources.

The invention relates to an anti-overturning disc spring three-dimensional shock-isolation support, which comprises an upper connecting plate, a lower connecting plate parallel to each other, and four inclined tie rods anti-pressure type arranged between the upper connecting plate and the lower connecting plate. Disc spring damper and four vertical pull rod anti-pressure disc spring dampers, connecting rods at both ends of each pull rod anti-pressure disc spring damper and upper connecting plate and lower connecting plate are respectively connected by universal The ball joints are connected together; wherein, the line between the connection points of the four inclined tie rod back pressure disc spring dampers on the upper and lower connecting plates is the same as that of the four inclined tie rod back pressure disc spring dampers. The axes jointly form a rectangular truss shape that is respectively symmetrical to the two sides; the connecting line between the connecting points on the upper and lower connecting plates on the upper and lower connecting plates of the four vertical pull rods and the four vertical pull rods The axes of the vertical tie-rod counter-pressure disc spring dampers together form a rectangular hexahedron. The support can realize real three-dimensional shock isolation.

The invention relates to a three-dimensional pull rod guide type belleville spring shock insulation support seat. The support seat comprises an upper connecting plate, a lower connecting plate and four pull rod guide type belleville spring dampers, wherein the upper connecting plate and the lower connecting plate are parallel to each other, the four pull rod guide type belleville spring dampers are arranged between the upper connecting plate and the lower connecting plate, and connecting rods on both ends of each pull rod guide type belleville spring damper are connected with the upper connecting plate and the lower connecting plate respectively by universal ball joints, so that a quadrangular frustum pyramid structure of which every two opposite side surfaces are symmetrical is formed.The three-dimensional pull rod guide type belleville spring shock insulation support seat has the effect of overturning resistance, and real three-dimensional shock insulation can be realized.