871 results about "Stress point" patented technology

The invention discloses a bridge structure safe state emergency monitoring and pre-warning method based on a wireless sensor network. The network with a sensor module which is arranged on the two sides or bottom stress point of the bridge or stress bearing parts of beams and columns is used for collecting bridge temperature and humidity, vibration amplitude, stress strain data of the beams and the columns, and data of the frequency and the amplitude of the bridge structure change. The sensor module wirelessly receives and sends with a collection node and a base station node by a wireless communication module, and sends the collected and processed data; the wireless receiving and sending collection node is connected with the base station node, and the base station node is connected with a computer by the network. The wireless sensor network realizes bridge structure safe state emergency monitoring and pre-warning, the sensor system processes, systematically decomposes and transforms the data to obtain the required parameters, and is connected to the computer by the network, and various software and hardware with realizable diagnostic function diagnose the received data.

The invention provides electronic equipment and a touch control method thereof. The electronic equipment comprises a receiving unit and a processing unit. The receiving unit is used for receiving pressure signals generated during touching operation which is performed by a user; the pressure signals comprise coordinates of a stress point and pressure of the touching operation; the processing unit is used for performing operations corresponding to applications which correspond to the coordinates of the stress point; and the applications are currently displayed in the electronic device. The electronic device and the touch control method thereof has the advantages of achieving more functions of a touch screen furthest, avoiding error touch, bringing novel interactive experiences to the user, improving usability of products and improving man-machine friendliness of the electronic device.

A secure golf club, of the “wood” or “iron” variety intended for high-speed impact of a golf ball, whose shaft may be lengthened or shortened in a relatively quick and easy manner. In a preferred embodiment, the shaft includes one or more shaft extension sections rigidly attached to the shaft or to each other by reverse-thread connections, to reduce the tendency of the shaft sections to loosen during play. Shaft locking mechanisms are also preferably employed for preventing relative axial movement along the shaft and between the shaft sections. Preferably, the shaft has a substantially continuous and substantially smooth outer periphery, substantially void of gaps or steps creating stress points within the shaft that might lead to fracture or breakage of the golf club during play.

The invention discloses an automatic reducing low-deformation offshore deep-water cage, relating to a cage for marine aquiculture. The invention is capable to reduce the deformation of the cage and the flow rate of the sea water inside the cage. The invention comprises a buoyancy frame, a cage, a sinking ring, a sinking block and an anchoring rope. A supporting and lifting control ring bigger than the buoyancy frame and the diameter of the sinking ring is arranged at the one second depth of the cylindrical cage; a water inlet and a water outlet are arranged in the pipe wall of the supporting and lifting control ring; a girdle rubber inner bag which regulates the lifting and descending of the cage is arranged in the ring pipe; an air-valve is installed in the rubber inner bag and connected with the air supply by a pressure hose; between the outer ring and the supporting and lifting control ring of the double-ring buoyancy frame, the bottom outline of the cylindrical cage and the bottom sinking ring, a plurality of flexible ropes are located and connected according to the ring at geometric proportion, and a netting is arranged among the connecting ropes of the three rings; and finally, a flexibly connected automatic reducing low-deformation offshore deep-water cage with a cylindrical inside and a two-cone platform outside is formed, the stress point of the anchoring rope of the cage is arranged at the supporting and lifting control ring.

A template for assessing damaged areas on a blade includes a set of marks indicating the maximum areas of damage allowed on an edge, as well as the tip of a blade. A guide enables the template to be aligned in proper position against the blade for accurate visual inspection of the damaged areas. One or more blend guides are included to allow the inspector to mark a blend area around the damage to enable maintenance personnel to smooth sharp, jagged edges of the damaged areas, thereby relieving stress points on the blade and improving the aerodynamic efficiency of the blade. The template is fabricated with transparent material that allows the blade to be viewed when the template is overlayed on the blade. A mechanism such as a clip, a sleeve, or magnetic attraction can be included on the template to retain the template on the blade during inspection.

The invention discloses a driving force receiving assembly of a photosensitive drum. The driving force receiving assembly of the photosensitive drum is used for receiving rotating force of a driving head of an image forming device and transmitting the rotating force to the photosensitive drum through a photosensitive drum gear arranged at the end part of the photosensitive drum to drive the photosensitive drum to rotate. The driving force receiving assembly comprises a driving force receiving part, a driving force transmission part and a gear matching part, wherein the driving force receiving part is engaged with an engaging part of the driving head of the image forming device; the driving force transmission part is connected with the driving force receiving part and the gear matching part; the gear matching part is matched with the photosensitive drum gear; and the driving force receiving assembly is engaged with the driving head in a manner of forming a fixed angle by a vertical intersection line of the center point of the engaging part and the rotating center line of the driving head and the vertical intersection line of a stress point of the driving force receiving part and the rotating center line of the driving force transmission part. By the driving force receiving assembly, driving force transmission can be stably and reliably achieved; and the condition that a process cartridge is smoothly put in/taken out can be ensured.

The invention discloses a system and a method for high-speed detection of loosening of railway fasteners on the basis of infrared thermal imaging. The system comprises two detectors, a controller and cables, the two detectors are positioned on the lower side of a body of a train and respectively opposite to the upper side of a left steel rail and the upper side of a right steel rail, the controller is mounted in a carriage and connected with the two detectors by the cables, digital infrared cameras are arranged inside the detectors, and whether the fasteners are loosened or lost or not is automatically judged by direct acquisition of infrared thermal images generated by contact stress of the fasteners and the steel rails, image processing and mode identification. The viewing field of each camera is centered at the position of the corresponding fastener, and image sampling and processing are carried out in selective small ranges of the fields of the view. During running of the train, sampling interval is adjusted if the positions of the fasteners are improper. Whether the maximum stress points in the infrared images are lower than a critical threshold or not is judged by an industrial computer so as to judge whether the fasteners are loosened or not, warning signals are transmitted if the fasteners are loosened, and early warning is realized before the fasteners are lost.

A flow promoter to promote flow of material in a hopper or bin container comprises a body having an inlet orifice, an outlet orifice, and an arrangement of peaks, ridges, slopes and radial lobes provided at the inlet end to cooperatively create stress points in the material. An embodiment of the invention comprises a removable flow promoter that can be inserted into a container.

An elastomeric fluid-filled prosthetic implant having a shell and a patch providing a reinforced access region on the shell for introduction of manufacturing implements, such as a gel-filling tool. The shell may cover the entire inner face of the patch, or a substantial part thereof, and a peripheral edge of the patch and the shell cooperate to form a flush interface with no sudden surface steps on both interior and exterior surfaces of the implant. The removal of any surface steps eliminates undesirable tactile discontinuities and stress points that may cause the shell wall to wear or may irritate the surrounding tissues. The prosthetic implant may be a breast implant formed of a silicone elastomer. The patch may be the same material or a liquid silicone rubber, but at least has similar material properties such as elastic modulus, durometer and elongation. The patch may include a channel, such as a self-sealing channel, used for introducing silicone to the mold to form the shell, for venting the mold cavity during the mold process, and/or for introducing the silicone gel into the hollow prosthesis. The patch may be combined with a fluid fill valve for manually adjusting the amount of a fluid such as saline within the shell after the mold process.

The invention provides a process method for rectifying the deviation of an open caisson by the jacking balance of jack, which comprises the following steps: knocking pre-stressed tubular piles into the four corners of a concrete box at the short-direction side as stress points; preventing the lower end of the concrete box from sinking in digging by an unloading device which comprises a pile cap, a steel truss, hydraulic jacks and a replaceable component; digging the subsoil at the high end of the concrete box to cause the lower foundation of the concrete box to have new inverse and non-uniform sinking; slowly sinking the concrete box to a designed elevation by adjusting the jack stroke and the replaceable component of the unloading device step by step; and replacing all the jacks by the replaceable component. The method can effectively solve the problem of non-uniform sinking of an open caisson in rectifying the deviation of the open caisson, and dynamically control the sinking of open caissons. The method is especially suitable for rectifying the deviation of open caissons in flow plastic muddy soil.

The invention discloses a method for directly calibrating micro thrust and micro impulse. By the method, the characteristics of uniform magnetic induction intensity distribution and extremely small magnetic flux leakage in an electromagnet air gap are utilized, a current-carrying wire passes through the air gap, the action of certain ampere force is applied to the wire, and the ampere force and the acting time are measured, so that the micro thrust and the micro impulse can be calibrated. When static thrust is calibrated, a stressed coil is arranged at a stressed point of a measuring device, the position of an electromagnet is adjusted, the ampere force direction of the stressed coil is taken as the thrust direction to be calibrated, and the static thrust can be calibrated according to the linear relation between the current of the stressed coil and the stressed ampere force. When the micro impulse is calibrated, the current of the stressed coil and the acting time of the current are measured, and the impulse of the ampere force can be acquired by using the calibrated linear relation between the current and the ampere force of the stressed coil, so that dynamic impulse can be calibrated. The method overcomes the defect of the conventional calibrating method and has the outstanding advantages of small error, high precision, wide calibrating range and the like.

A method of treating the surface of mechanically abraded glass includes a first step of providing a glass substrate having opposing first and second surfaces. The glass substrate having a recess in the first surface formed by abrasion, such as sand blasting. The glass substrate can also include a via therethrough, formed by said abrasion technique. A next step includes heating the glass substrate to its softening point. A next step includes holding the glass substrate at its softening point for a predetermined period of time to polish the recess and vias. This polishing returns transparency to the glass and reduces the possibility of crack propagation by reducing stress points and microcracks.

The invention relates to an off-resonance type wheel-type generator based on a cantilever beam piezoelectric vibrator, and belongs to the field of piezoelectric power generating. A rotary disc slide sink cavity is communicated with a central hole on the other side and communicated with an annular cavity through a guide hole; a cantilever shaft sleeved in the center hole is connected with a side plate installed on a side of the sink cavity; the side plate is provided with an annular cavity and a guide hole; extrusion balls are filled in the guide holes of the rotary disc and the side plate; a cantilever of a metal substrate pressed by the end cap in the annular cavities of the rotary disc and the side plate and a bonded piezoelectric wafer constitute a piezoelectric vibrator; an excitation disc is filled in a slide formed the slide sink cavity and the cantilever shaft; balls are embedded in the inner rim and the outer rim of the excitation disc; and a lift inclined plane, a convex surface, return inclined surface and a concave surface on the two sides of the excitation disc form an excitation unit. The advantages and characteristics of the off-resonance type wheel-type generator are that no fixed support is needed and no electromagnetic interference exists; the piezoelectric oscillator structure is reasonable; off-resonance power generation is realized and the deformation of the radius is determined by a limit surface; stress points are the same and only bear compressive stress, so that the electric power generation is large; the reliability is high; an effective frequency band width is large; and the off-resonance type wheel-type generator is especially suitable for a low rotating speed environment.

The invention relates to the technical field of medical equipment, in particular to a disposable foreskin cutting stapler. The disposable foreskin cutting stapler comprises a concave seat, a staple chamber sleeve, a casing, a lead screw, a staple pushing piece, a movable handle and a connecting rod, wherein the lead screw is arranged in the casing, the staple chamber sleeve is arranged on the left side of the casing, the staple pushing piece and the concave seat are arranged in the staple chamber sleeve, the movable handle is installed on the casing, the connecting rod is connected with the casing and the movable handle, a safety clip is arranged on the casing, an adjusting nut is arranged at the tail end of the casing, an adjusting bolt is arranged at the end of the lead screw, exhaust through holes are formed in the concave seat, and a suture carrying hole is formed in the staple chamber sleeve. The disposable foreskin cutting stapler has the advantages that the operation time is effectively shortened during use, the stapler is convenient for a doctor to operate, the stapler is not only safe but also practical, the stress area is increased through the fish-tail-shaped adjusting nut, the stress points are increased, the appearance is attractive and the operating hand feeling is improved.

The invention belongs to the technical field of testing of vibratory fatigue and in particular relates to a vibratory fatigue testing method of aviation-engine blades based on an electrodynamics vibration generator; the method aims at solving over-testing or insufficient testing problem in the prior art and comprises the steps: calibrating a maximum vibratory stress response point, choosing auxiliary monitoring points, choosing sine constant-frequency stabilization and simulation blades, judging the fatigue destruction of the blades and analyzing testing results. By adopting the steps of choosing the auxiliary monitoring points and choosing the sine constant-frequency stabilization and simulation blades, the vibratory stress level (the fluctuation error is within 2%) of the blades in the testing process is stabilized effectively, the testing precision is guaranteed and the full-process monitoring of the vibratory stress level of the blades at the maximum stress point is realized.

The invention provides a method for calculating front frame strength of a wind generating set. The method comprises the following steps: implementing modeling with the existing finite element software as the platform, defining material attributes of various components, and performing calculation to obtain a stress cloud chart and a largest stress point of the front frame. The invention overcomes the disadvantages of the prior art in the calculation of front frame strength of the wind generating set, perfects considerations in detailed aspects, perfects a finite element model of front frame strength calculation mainly in the aspects of load boundary, correct transfer of yawing moment as well as simulation of main shaft bearing and yawing bearing and the like, thus obtaining more accurate front frame stress distribution, and providing a more accurate front frame strength result in terms of design, and providing scientific basis for the design of the front frame.

The invention provides a combined type ceiling hanging part. The combined type ceiling hanging part comprises first connecting parts used for hanging wood veneer to the edge of a ceiling, and second connecting parts used for connecting two adjacent sheets of wood veneer. The first connecting parts are Z-shaped parts or L-shaped hanging part bodies, and the second connecting parts comprise Z-shaped hanging part bodies. Z-shaped hanging part bodies are hung to the horizontal edges of the L-shaped hanging part bodies and the horizontal edges of the right sides of the Z-shaped hanging part bodies. The left ends of the horizontal parts of the upper ends of the Z-shaped hanging part bodies extend downwards to form hanging heads. Adjusting screw rods are installed on the horizontal edges of the L-shaped hanging part bodies and the horizontal edges of the right sides of the Z-shaped hanging part bodies and located between the vertical portions of the Z-shaped hanging part bodies and the hanging heads. The combined type ceiling hanging part is wide in application range, can be used for point hanging and nail hanging, and can be applied to a traditional T-type hanging system. By means of the combined type ceiling hanging part, the stone ceiling is firmer and safer to use, stress points are designed reasonably, the height of four corners of a stone can be adjusted conveniently, and the combined type ceiling hanging part is simple in structure, capable of being assembled and disassembled independently and high in operability, and saves labor and cost while improving the safety.

The invention discloses a device and a method for detecting bending degree of a steel structure cross beam, and relates to the technical field of steel structures. The device comprises a mounting base, wherein two symmetric supporting plates are fixedly arranged on the upper surface of the mounting base; a fixing plate is arranged on the upper parts of the supporting plates; the upper surface of each supporting plate is fixedly connected to the bottom surface of the fixing plate; a pressing detection mechanism is fixedly arranged on the bottom surface of the fixing plate; a supporting mechanism is fixedly arranged on the upper surface of the mounting base; and the pressing detection mechanism comprises a movable plate, pressing plates, rollers, a pressing rod and an arc-shaped block. According to the device and the method for detecting the bending degree of the steel structure cross beam, the detection device can simultaneously detect multiple stress points of the steel structure crossbeam through the arrangement of the pressing detection mechanism and the supporting mechanism, a problem that the next stress point of the steel structure cross beam is detected after a worker movesthe steel structure cross beam in order to reduce the labor cost of the worker can be effectively avoided, and the operation is convenient.