166results about How to "Act as a constraint" patented technology

The invention discloses a reinforcement method and a reinforcement structure for treating railway soft soil roadbed settlement overweight before operation. The reinforcement structure mainly consists of five parts, namely a main bearing structure system, a reinforced cushion layer structure system, a foundation bed drainage system, a settlement observation system and a reserved grouting system. The technical problems that the existing roadbed is greatly damaged, the construction period is long, the construction property is low, the quality is difficult to control and the problem that the soft soil roadbed settlement overweight is caused in the conventional technical scheme are effectively solved.

A composite shear wall with concrete-filled steel tube frames and double steel plates with concealed bracings and a construction method thereof relate to the field of construction. According to the invention, the composite shear wall is formed by combining reinforced concrete frames, a double steel plate shear wall and steel plates with concealed bracings. The reinforced concrete frames are formed by pouring concrete into steel tubes; then, the double steel plates are placed, the double steel plates are welded to the reinforced concrete frames, and the steel plates are perforated and are connected through studs; oblique crossing concealed bracings are placed between the double steel plates, and the oblique angle of the concealed bracings is between 45 degrees and 60 degrees; tie bars are threaded through the interspace between the concealed bracings; a reinforcing mesh composed of transverse steel bars in horizontal arrangement and longitudinal steel bars in vertical arrangement is arranged between the concealed bracings and the steel plates; and concrete is poured between the double steel plates. The composite shear wall has the advantages that the bearing capability is enhanced, the bearing capacity and the rigidity attenuate slowly, the ductility and the energy dissipation of the shear wall are enhanced due to multi-defenses, and the earthquake resistant capability is more excellent. The composite shear wall also has the advantage of convenience in steel structure construction, and can be used in high-rise or large complex multi-storey buildings.

The invention discloses a method for increasing a top-coal recovery rate in a primary mining period of a fully-mechanized caving face so as to overcome the defect of low top-coal recovery rate caused by the fact that an existing top-coal caving control technique in the primary mining period of a fully-mechanized caving face is imperfect. The method includes: before primary mining of the caving face, constructing a hydrofracture process tunnel in a high-drainage tunnel, constructing a plurality of groups of drilled holes in the hydrofracture process tunnel, and performing hydrofracture in each drilled hole, wherein each group is divided into four drilled holes in different directions, three of the drilled holes are disposed in a top cover, and the other drilled hole is disposed in top coal. Wedge slot cracks are formed in the top coal and a roof to perform hydrofracture, so that the top-coal recovery rate in primary mining is increased; the method is simple in process, operable, low in cost and high in benefit, the top-coal recovery rate is increased, potential safety hazards are lowered, and accordingly safe and efficient production of coal mines is realized.

The invention specifically relates to an automobile 4S shop sales service quality evaluation system which is timely and objective in evaluation and high in accuracy of an evaluation result and an evaluation method. The evaluation system comprises a miniature receiver, and is characterized in that the receiver comprises a microphone, a sound card, a signal processor, an auxiliary controller and a signal transmitter. According to the invention, the sales personnel wear a miniature somatosensory sensor and a miniature positioning device; evaluation is performed by using the evaluation system, a sales personnel evaluation index Rn is calculated so as to be able to effectively monitor whether service attitudes and service expressions of the service personnel to be appropriate or not in the sales process, and whether actions performed out of courtesy of the sales personnel are appropriate or not can also be judged through comparing action information and position information of the sales personnel in sales personnel moving trajectory data; and customer languages and attitudes in the sales process can be effectively monitored according to a customer evaluation index Sn. Appropriate correction is performed when the service attitudes of the sales personnel are evaluated by using the evaluation method of the evaluation system, so that the evaluation system is enabled to evaluate the service quality of the sales personnel in an impartial manner; and the evaluation process is simple and efficient.

The invention discloses a prefabricated flexible concrete frame joint structure with added hidden dampers. The prefabricated flexible concrete frame joint structure comprises concrete precast beams (1), a concrete precast column (2), an unbonded prestressed steel strand (3) and the dampers (4); and the concrete precast beams are installed on the two sides of the concrete precast column symmetrically through the four dampers correspondingly, high-strength rubber gaskets are placed at the joints of the concrete precast beams and the concrete precast column, and high-toughness fiber slurry is used for caulking. The prefabricated flexible concrete frame joint structure is reasonable in design, the metal dampers fully consumes energy through relative rotation between visco-elastic damping sheets in an earthquake, the force transmission path at the intersection of the beams and the column is changed, and the damage of a main body of a joint can be effectively reduced; the concealment of energy-consuming damper units avoids the overlap of a plastic hinge region and the main body of the joint, and the structural function can be restored only by replacing the damper units with structures damaged in the earthquake. The structure belongs to a recoverable functional structure, and the structure can recover the normal function as soon as possible after the earthquake.

The invention discloses a robot small-line-segment proactive planning method based on position and posture restraint. The small-line-segment proactive planning method is adopted to obtain angular velocity planning data of each joint of a robot, the method is characterized by adopting a fusion velocity vector to take the place of a linear velocity to serve as a planning variable in the proactive planning method, wherein v1, v2 and v3 represent the linear velocities of a tail end coordinate system origin moving along base coordinate X, Y and Z axial directions, and omega1, omega2 and omega3 represent angular velocities of euler angles. The robot small-line-segment proactive planning method based on the position and posture restraint has the advantages that the positions and postures are restrained, the situations that any one of the positions and postures of the tail end coordinate system suddenly changes or the positions and postures of the tail end coordinate system simultaneously suddenly change can be effectively avoided, if the postures are not changed, the linear velocity can reach a set maximum value, the efficiency is high, the posture velocity and linear velocity are fused into an variable, the controlled variable is reduced, the calculation is simpler, and the operating rate is quicker.

The invention relates to a foamed floor with wood textures, and belongs to the technical field of co-extrusion foamed plates. The foamed floor comprises a foamed substrate and hard surface layers; andthe hard surface layers comprise (a) and (b), wherein (a) is provided with a first exposed surface formed by a first color resin, a connecting substrate and a base layer, (b) is provided with a second exposed surface formed by a second color resin and a connecting substrate, the first exposed surface is composed of a plurality of exposed units, the second exposed surface is composed of a plurality of sunken units, the plurality of exposed units and the plurality of sunken units are arranged in a staggered manner, a connecting unit is arranged between each exposed unit and the adjacent sunkenunit, and the connecting units are composed of the connecting substrates and connecting surface materials. According to the floor, the resins are taken as materials, the realistic effect of the wood textures is realized based on the performance manipulation in multiple aspects such as three dimensions (depth of the wood textures), color difference, and brightness and darkness and based on the twosurface layers; and in addition, the various wood textures can be obtained by adjusting the three dimensions, the color difference, and the brightness and darkness.

A constraint chain piece, a chain, a chained stepless speed regulator, and a chain design method. The constraint chain piece (2) is a combined body by integrally connecting two chain pieces with a constraint connection region (4), and implements clamping and constraint for the adjacent chain piece. The constraint chain piece (2) and a transmission chain piece (1) are alternately assembled at a spacing, so that the whole chain are integrally connected at the outer side, thereby constraining the outer-side chain piece; for the manufacturing process, the chain without a welding spot and a riveting spot omits the conventional welding or riveting process, thereby reducing the manufacturing cost, improving the reliability, and prolonging service life.

The invention discloses a novel anti-tube-drawing hand restraining device with monitoring and alarming functions. The novel anti-tube-drawing hand restraining device comprises a glove body, a controller and an air pump, wherein the controller is mounted in the air pump; a single chip microcomputer is arranged in the controller; a wrist part is arranged at the tail end of the glove body; a fixing belt buckle is arranged on the wrist part; main air bags are arranged in the palm center position of the glove body and the wrist part; and inflation interfaces are mounted on the main air bags on theglove body and the wrist part. The novel anti-tube-drawing hand restraining device with the monitoring and alarming functions is ingenious in structural arrangement and reasonable in layout; the air bags are arranged in the palm center position, and the movement amplitude of the hands of a patient is detected by an acceleration sensor; when the movement amplitude is too large, the single chip microcomputer controls the air pump to be started to inflate the air bags, the air bags are inflated to limit the bending amplitude of fingers of the patient, the condition that the patient scratches frantically is avoided, and the patient is restrained.

The invention relates to a concrete component, and in particular relates to a steel rib-steel tube recycled concrete combined column in civil engineering. The combined column consists of steel ribs, steel tubes and recycled concrete, and is formed by soldering steel plates, wherein the steel tube is positioned in the center of the column, the steel ribs are positioned at the corners of the column, and the concrete contains recycled concrete fragments serving as aggregates; the recycled concrete comprises recycled concrete fragments of 5-30mm serving as coarse aggregates in the recycled concrete; according to the volume of each cubic meter of the recycled concrete, 200-1,400kg of the coarse aggregate recycled concrete, 400-600kg of cement, 150-300kg of water and 150-1,500kg of fine sands are mixed sufficiently; the steel tube of the steel rib-steel tube recycled concrete combined column is coated by recycled concrete, and concrete can be filled in the steel tube. The steel rib-steel tube recycled concrete combined column is a main component of a building frame structure in high-rise buildings, and has the characteristics of high bearing capacity, high rigidity, light weight, good plasticity and toughness, good impact and fatigue resistance, excellent earthquake resistance and the like.

The invention belongs to the field of wire additive manufacturing, and discloses a laser additive manufacturing system and method for a polymer wire. The system comprises a lifting table, a wire conveying unit, an extruding unit, a robot and a laser device, wherein the lifting table is a working tabletop for forming a wire; the laser device is used for melting the wire extruded from the extrudingunit; the laser device is arranged outside the extruding unit to separate the melting of the wire from the extruding unit, namely separate wire conveying and melting, so that blockage of a sprayer ofthe extruding unit is avoided; a laser head and the extruding unit are fixed on a working table at the tail end of the robot, so that laser can directly shoot a wire extruding position at any time toensure that the wire is melted under the action of the laser as soon as the wire is extruded; the robot carries the extruding unit and a laser unit to move according to a preset track to realize melting and forming of the wire on a single slice layer; the lifting table goes down to realize forming of all the slice layers, so as to obtain a part to be formed. According to the laser additive manufacturing system disclosed by the invention, the problems of easiness in blockage, difficulty in cleaning, short service life and the like of the sprayer are solved.

The invention discloses a steel and wood buckling energy consumption support and belongs to the technical field of structural engineering. The buckling energy consumption support comprises a core force bearing steel plate, a periphery constraint part and a no-bonding layer, wherein the main body part of inner core force bearing steel plate is in a linear shape. Connecting sections and transition sections at the two ends of the inner core force bearing steel plate are welded to an auxiliary connecting plate to form a cross-shaped cross section. The periphery constraint part is composed of a wood block wrapped with a steel plate and a CFRP material wrapped transversely in the length direction of a member together. The no-bonding layer is arranged between the core steel plate and the constraint wood block. The invention belongs to the technical field of civil engineering structural damping. Hysteretic energy performance of the steel support member under the effect of a strong earthquake is obviously improved. Compared with the prior art, the process of twining the CFRP outside is adopted in the steel and wood buckling energy consumption support, the structure is compact, the economical and practical effects are achieved. A constraint unit is made of light weight timber, so that the shortcoming that the self weight of a traditional buckling preventing energy consumption support is large is overcome. The steel and wood buckling energy consumption support is easy to machine, is convenient and flexible to use, and has wide market popularizing prospects.

The invention relates to an internet-based garbage classification and recovery processing system. The system comprises a feature acquisition module, a central control module, a storage module, a communication module, an interaction module and a garbage throwing module. According to the invention, the feature acquisition module is used to acquire a detection image of to-be-classified garbage, the central control module uses a convolutional neural network model to identify the garbage contour in the image according to the detection image and accurately obtain the classification feature information of each piece of garbage in the to-be-classified garbage, then, the to-be-classified garbage is preliminarily judged and confirmed according to the number of the garbage in the first four of the volume descending order; when it is judged that the garbage is incorrect, classification feature distribution aggregation indexes of all the garbage thrown by a throwing main party are calculated so asto ensure that the to-be-classified garbage is thrown into garbage cans of the corresponding categories when the throwing main party classifies the garbage according to specifications, accurate classification throwing is ensured in combination with the interaction module, and the garbage classification efficiency and the garbage classification accuracy are improved, and meanwhile, the monitoring efficiency for the garbage throwing main party is effectively improved.

The invention relates to a spraying sandwiched concrete shear wall structure of a clamp die fixing machinery and a construction method; the method comprises the following steps: a precast steel mesh core plate is installed on a poured-in-place underbeam/foundation correspondingly, then a clamp die column and a clamp die of a clamp die beam are installed, two side surfaces of the steel mesh core plate are fixed by the clamp die, a concrete layer is sprayed mechanically on the surface of the steel mesh core plate, a steel mesh of the steel mesh core plate is solidified in the concrete layer, then the clamp die column and the clamp die beam are poured in place, vibrating is conducted in the pouring process, and the poured concrete is densely solidified with the corresponding edge of the concrete layer, so that a frame light sandwiched concrete beating wall body can be formed. By adopting the method, the effects of integrity, strength, impact resistance, shock resistance, heat insulation, energy conversation and the like of the wall body can be greatly improved, the self weight of the wall body can be reduced, the pouring formwork can be saved by 60%, the working can be reduced, the construction period can be accelerated, the engineering manufacturing cost is lowered, and the invention is particularly suitable for shear walls of multi-layer and high-rise buildings and construction.

The invention provides a floating winding device and a winding method thereof. A method that the winding device floats along with a core rod is used, a central line approaching state is reached through a deviation rectification apparatus, large deviation of the core rod of a hose is achieved through hinge connection on the premise that an opening mechanism approaches to the center of the winding device to follow the center of the core rod to move, deviation of the core rod of the hose in the circumferential direction can be solved through deformation of an elastic support mechanism, an opening and a spline disc are moved along with the core rod through butt joint positioning of a steel wire rope and a spline disc mechanism during operation, and accordingly, the opening and the spline disc mechanism share a same central position with the core rod of the hose. By means of the floating winding device and the winding method thereof, uneven winding of steel wires or steel wire ropes caused by bending and gravity sinking of the core rod of prior fixed winding methods and devices is overcome, surface layouts of the steel wires or steel wire ropes are improved, and the anti-blasting capacity of the hose is improved.

The invention relates to a silicon steel mechanical scoring machine which comprises a frame capable of moving along a guide rail, wherein a rack is arranged on the frame; in a co-directional manner, a denting roll, a press roll and support rolls are arranged on the rack; the position of the denting roll is fixed, the press roll is located right below the denting roll and can move up and down, the press roll is supported by two rows of support rolls below, the two rows of support rolls are respectively arranged along the axial direction of the press roll and form a 'pin' shape with the press roll (wherein 'pin' is a Chinese character), the two rows of support rolls are in one-to-one correspondence in the radial direction of the press roll, each pair of corresponding support rolls are arranged on a same support roll seat, each support roll seat is connected with a compressing hydraulic cylinder, and the compressing hydraulic cylinder can drive the support rolls to move up and down via the support roll seat. The scoring machine can adjust the dimensions of grooves, the machined grooves are uniform, and the production quality is steady.

The invention belongs to the field of pipe limiting, and discloses a pipe rotation limiting device. The pipe rotation limiting device is mainly composed of a baffle (1), a concave arc insert (2), a convex arc insert (3) and a T-type beam (4), wherein the concave arc insert (2) is clamped into the baffle (1) through adoption of an expansion connection technology, the convex arc insert is clamped into the T-type beam (4) through the adoption of the expansion connection technology, one end of the T-type beam (4) is fastened with a pipe (6) through a clamping hoop (5), the convex arc insert (3) at the other end of the T-type beam (4) is placed in an arc chute formed in the concave arc insert (2), a convex arc face of the convex arc insert (3) and a concave arc face of the concave arc insert (2) are both concentric cylinder faces with the pipe center as the circle centers, and the convex arc face is matched with the concave arc face. The pipe rotation limiting device is a device which directly limits the pipe rotation without limiting the pipe translational motion.

The invention belongs to the technical field of medical instruments and relates to a body position constraint device in CT (computed tomography) inspection. The body position constraint device comprises upper limb positioning devices and a lower limb positioning device, wherein the upper limb positioning devices comprise fixing bases, upper rotating parts with limiting holes, upper locking parts and limiting insertion rods; the upper rotating parts are connected with the upper fixing bases through first connecting parts and second connecting parts on the fixing bases in a hinged manner; the lower limb positioning device comprises a lower fixing base, a lower rotating part with limiting holes, a lower locking part and a limiting insertion rod; the lower rotating part is connected with the lower fixing base through a third connecting part and a fourth connecting part on the lower fixing base in a hinged manner; the upper locking parts and the lower locking part are respectively used forfixing the upper rotating parts with the upper fixing bases and the lower rotating part with the lower fixing base; the upper limb positioning devices are symmetrically arranged on both sides of an inspection bed; and the lower limb positioning device is arranged at the middle and lower part of the surface of the inspection bed. The body position constraint device has the advantages of being flexible to use, is capable of implementing flexible position limiting and constraint with active cooperation with the posture of a patient, is simple and easy to operate, and can be mounted and dismountedfreely.

The invention relates to an organic acid modified Si/TiO2/rGO@C lithium ion battery negative electrode material as well as a preparation method thereof. The preparation method comprises the followingsteps: S1: adding powder of nano titanium dioxide and silicon into a dispersed medium, performing the ultrasonic dispersion treatment, and ball milling; S2: adding dispersion liquid of graphene oxideinto a mixture obtained in step S1, and ball milling; S3: adding an organic carbon source into the mixture obtained in step S2, stirring, and ball milling; S4: centrifuging and drying the mixture obtained in step S3 to obtain a Si/TiO2/GO/C composite; S5: in an inert atmosphere, calcining the Si/TiO2/GO/C composite obtained in step S4 at 350 to 450 DEG C to obtain the negative electrode material.The invention also relates to application of the negative electrode material in a lithium ion battery negative plate. The preparation method has the advantages of simplicity and convenience in operation, low cost, easy industrialized production and the like; and the obtained negative electrode material is excellent in comprehensive performance, high in capacity retention rate and stable charging-discharging circulation performance.