36results about How to "Solve the limit problem" patented technology

A spacing device of equipment for delivering welding workpieces in a circulating manner is used for solving the spacing problem of a slipping bracket during the operation of the equipment, is mounted on the equipment provided with a slipping workbench rack and a lifting workbench rack, and comprises a slipping spacing mechanism, a lifting spacing mechanism and a spacing stop block, wherein the slipping spacing mechanism comprises a spacing component and an unlocking piece; the spacing component is hinged to the slipping workbench rack of the equipment, and is matched with the unlocking block to control a slipping bracket; and the unlocking block is fixed on the lifting workbench rack of the equipment. The spacing device has the advantages that the structure is simple; the conception is ingenious; the performance is stable; the investment cost is low; the welding workpieces can be positioned reliably during a delivering process; automatic control of spacing and releasing is realized; the workpiece delivering efficiency is improved; and the shape precision and the position precision of the workpieces during follow-up processing are guaranteed.

The invention discloses a tunnel anti-expansion support design method. The method comprises the following steps that firstly, the lateral confinement free expansion test and the expansion force and time test are carried out; secondly, according to a test result, parameters of an expansion constitutive equation containing the time effect are obtained; thirdly, according to the expansion constitutive equation containing the time effect, a relation equation of tunnel expansion deformation and support anti-expansion force is established; fourthly, under the boundary condition that the support force is equal to zero, the expansion deformation of the tunnel construction period is worked out, expansion deformation is considered in the reserved deformation design based on the calculation result, and the problems of instability and beyond limit caused by expansibility in the construction period are effectively solved; and fifthly, under the boundary condition of displacement restraint, the expansion force borne by a tunnel running period secondary lining is worked out, the anti-hydrostatic pressure design is added in the secondary lining, the anti-hydrostatic pressure value is not smaller than the maximum expansion force value in the running period, and the problem of stability in the running period is effectively solved.

The invention discloses a distributed battery energy storage system dispatching operation method of considering voltage regulation. The method comprises the following steps of (1) carrying out data collection; (2) judging whether bus voltage V<bus> is over the limit or not, if the bus voltage is greater than a maximum voltage reference value V<ref-max>, entering the step (3), and if the bus voltage is smaller than a minimum voltage reference value V<ref-min> or the system is in a peak load condition Peak-Load=1, entering the step (4); (3) carrying out an overvoltage regulation process; (4) carrying out low voltage regulation and peak load reduction processes; (5) carrying out an instruction sending link of a controller, sending a control instruction to voltage regulating equipment or a battery energy storage system by the controller and enabling the voltage regulating equipment or the battery energy storage system to start a corresponding action; and (6) returning to the step (1) and observing the control effect of the bus voltage. The bus voltage is regulated through battery energy storage charging and discharging dispatching, the out-of-limit problem of the bus voltage is solved, and mutual optimization of the voltage regulating equipment and the battery energy storage system and a photovoltaic power generation system is achieved.

The present invention relates to a method for calculating voltage distribution of a feed line containing a DG (Distributed Generation), characterized in that calculation of voltage distribution is performed through a superimposed principle, i.e., when a system power supply is in effect and when the DG is in effect, line loss is respectively calculated, then voltage of each node is calculated, and voltage distribution of the feed line is derived. When the plurality of arbitrary DGs are connected, the method also can derive the rule of voltage changes of each node of the feed line. Nowadays, grid connection capacity of the DG is bigger and bigger, the number of the DGs connected in the feed line is correspondingly increased. Therefore, the method can derive the voltage distribution case after the DGs with certain capacity are connected into the feed line, and can derive the optimum position and capacity of the DG when the plurality of DGs are connected into the feed line, thereby solving the problem of node voltage off-limit after connection of the DGs.

The invention discloses a curtain wall mounting structure. The mounting structure comprises a curtain wall panel, a hanging weight and a supporting plate, wherein the hanging weight is connected withthe curtain wall panel, a notch is formed in the hanging weight, the supporting plate is connected to a building, the supporting plate is provided with a clamping strip matched with the notch, the hanging weight is connected to the clamping strip of the supporting plate in a hung mode through the notch, and the hanging weight can slide on the clamping strip in the first direction. The structure has the beneficial effects that hanging connection of a hollowed-out UHPC art panel is achieved.

The invention belongs to the field of tunnel reinforcing engineering, and relates to a tunnel structure defect repairing system and a construction method. The system involves a UHPC pavement structurelayer, a UHPC lining structure layer, hollow grouting steel pipe piles, foot locking anchor rods, cartridge anchor rods and a fireproof coating layer. Compared with the prior art, the tunnel structure defect repairing system and the construction method adopts UHPC as a tunnel defect treatment material, and UHPC has the excellent characteristics of high strength, corrosion resistance, high impermeability, impact resistance and the like, so that compared with a traditional reinforced concrete lining, the novel lining can save the construction procedures, reduce the construction difficulty and improve the construction efficiency, and meanwhile, the lining thickness can be remarkably reduced, and the high lining bearing capacity can be provided through the relatively thin UHPC lining thickness; and the system and the method are particularly suitable for solving the beyond limit problem of an existing lining, and have good economical efficiency and feasibility.

The invention discloses a cable holder capable of limiting a position, comprising a fixation frame, the front surface and the back of the fixation frame are respectively fixedly connected with a concave type block, the left side of the fixation frame is fixedly connected with a mounting plate, a baffle is arranged at the top of the fixation frame, and a bolt is arranged at the left side of the topof the baffle in a penetrating way. The cable holder disclosed by the invention can limit the position of a cable twice by cooperatively using the fixation frame, the concave type blocks, the mounting plate, the baffle, the bolt, a hollow block, a sliding block, a connecting plate, a clamping rod, an arc-shaped block, a cable body, a mounting block, a connecting rod, a fixed block, a locating rod, a spring, a fixed plate and a convex plate which are arranged, a user can conveniently arrange wires and fix the cable, namely the problem that an existing holder can not conveniently limit the position of the cable during arrangement of the wires can be solved, the cable holder capable of limiting the position has the advantage of being capable of limiting the position of the cable, and difficulty of the user during the arrangement of the wires is reduced, so that efficiency of the user during the arrangement of the wires is improved, and practicability of the cable holder is improved.

The invention discloses a rotary buckling type watch buckle and a watch. The rotary buckling type watch buckle comprises a male buckle body and a female buckle body; the male buckle body is provided with a first buckling face facing the female buckle body, a groove is formed in the first buckling face, and a rotating part is arranged on the side, away from a first watchband, of the groove; the female buckle body is provided with a second buckling surface, a rotating groove is formed in the second buckling surface, and the rotating part can be screwed into the rotating groove; a fastener mounting groove is formed in the rotating groove, and a fastener is arranged in the fastener mounting groove and can be arranged in the fastener mounting groove in a rebounding mode; in the first state, therotating part enters the rotating groove; in the second state, the fastener partially enters a clamping groove, so that the male buckle body is fixed on the second buckling surface. By means of the two fasteners, the fasteners matched with the fasteners and other structures, on the basis of guaranteeing that the watch buckle is simple in structure and high in reliability, the purposes that the watch buckle is buckled through relative rotation, the locking force is increased, and the user perception experience is improved are achieved.

The invention discloses a cyclic feeding digital jet printing machine, which comprises a transmission line composed of a plurality of transmission bodies capable of being butted with each other freely; each transmission body comprises an upper body layer and a lower body layer; the upper body layer and the lower body layer are respectively provided with an endless belt for conveying the boards to be printed; both ends of the transmission line are each provided with an elevating device used for conveying boards to be printed from the upper body layer to the lower body layer, or inversely; both the upper body layer and the lower body layer are also respectively provided with a positioning device used for positioning the board to be printed thereon; the upper body layer and the lower body layer are also respectively provided with an upper stopping device and a lower stopping device used for stopping the boards to be printed thereon; and each transmission body is connected with a printing treatment device capable of treating the printing media on the board to be printed. The machine disclosed by the invention occupies a small area, achieves a high production efficiency and can be changed of the number of work positions freely.

The invention relates to the field of clutches, in particular to a clutch fork with a socket structure. Two oil grooves are added in a socket of the clutch fork and shaped in circular rings, a rubber sealing ring is added in the oil groove, shaped in the circular ring, close to the outside, and the inner diameter of the rubber sealing ring is identical with the outer diameter of a rod portion of a supporting ball head. The clutch fork with the socket structure has the advantages that 1, the problem of abrasion of the supporting ball head and the socket caused by the fact that lubricating grease flows out of the fork socket when the fork socket is matched with the supporting ball head is solved; 2, shrill abnormal sound generated by relative rotation of the supporting ball head and the fork socket is eliminated; 3, the problem of limiting of a fork ball head is solved; and 4, the problem that outside pollutants enter the socket of the fork is solved.

The invention discloses a tensile resistant limiting device used for a friction pendulum support shock isolation layer. The tensile resistant limiting device for the friction pendulum support shock isolation layer comprises anchoring steel frames, pressure bearing plates, a sliding block and a spiral spring. The upper anchoring steel frame is embedded in a bottom beam of the shock isolation layer through pouring in advance, and the lower anchoring steel frame is anchored in an independent base column. The upper pressure bearing plate is welded to the lower anchoring steel frame, and a stiffening rib is welded for fixing. The lower pressure bearing plate is welded to the upper anchoring steel frame, and the stiffening rib is welded for fixing. A hole is reserved in the lower pressure plate to ensure that a lower end sleeve of the sliding block can be tightly inserted into the hole. An upper end plate of the sliding block is in contact with the upper pressure bearing plate, and the lower end sleeve penetrates through the spiral spring and the lower pressure bearing plate reserved hole. The inside of the lower bearing pressure plate reserved hole, the sliding block, and the lower bottom surface of the upper pressure bearing plate are all made of non-bonded low carbon steel, and thus smooth sliding is ensured. When the friction pendulum shock isolation structure is subjected to strong seismic oscillation action and the shock isolation layer and a base are about to be separated, the upper pressure plate and lower pressure bearing plate compress the spiral spring to produce pressure, so that the tensile resistant effect of the shock isolation layer is achieved through the effect that the upper anchor and lower anchor steel frame interact to prevent a friction pendulum from breaking away.

The invention discloses a novel automobile exhaust system hanging block. The exhaust system hanging block comprises a metal support connected with an automobile body, a metal framework fixedly connected with the metal support, and an exhaust tube mounting part, wherein the metal framework is positioned around the outer side of the exhaust tube mounting part which is fixedly connected with the metal framework through a plurality of rubber reinforcing ribs; and a vulcanized rubber body is packed in the metal framework and is connected with the metal framework to form a whole. By adopting the technical scheme, the problem of limiting a silencer by the hanging block is solved, the displacement of a rear silencer can be in an acceptable range when an automobile runs, the durability of the hanging block can be improved, and a mounting tolerance of an exhaust system can be effectively corrected; the metal support of the hanging block which is tightly adhered to the automobile body has high rigidity, so that the vibration of a silencer side can be effectively prevented from being transferred to an automobile body side, noise transmitted to the inside of the automobile body by the exhaust system is reduced, and high noise vibration and harshness (NVH) performance is achieved; and the exhaust system hanging block is convenient to mount, a limited space is effectively utilized, and a hanging system is convenient to arrange.

The invention provides a setting treatment device for a turnout snow-melting fixture. The setting treatment device comprises a support; a support panel is provided with a guide groove; one side of the guide groove is provided with a first positioning pin; the other side of the guide groove is provided with a second positioning pin; a plurality of limiting holes are disposed between the first positioning pin and the second positioning pin; the limiting holes are detachably provided with limiting pins; the guide groove penetrates through two side surfaces of the support panel; the first positioning pin, the second positioning pin and the limiting holes are all disposed at one side of the support panel; the other side of the support panel is provided with a force-applying mechanism; the force-applying mechanism is provided with a roller shaft at the end close to the guide groove; and the roller shaft is vertical to the support panel and penetrates through the guide groove. The setting treatment device is simple in operation and low in cost and can realize setting treatment for a plurality of turnout snow-melting fixtures. Besides, the setting treatment is convenient for mechanism installation and adjustment, is suitable for large-scale production and can realize the setting treatment of the turnout snow-melting fixture and guarantee the quality of the fixture.

The invention provides a setting treatment device for a turnout snow-melting fixture. The setting treatment device comprises a support; a support panel is provided with a guide groove; one side of the guide groove is provided with a first positioning pin; the other side of the guide groove is provided with a second positioning pin; a plurality of limiting holes are disposed between the first positioning pin and the second positioning pin; the limiting holes are detachably provided with limiting pins; the guide groove penetrates through two side surfaces of the support panel; the first positioning pin, the second positioning pin and the limiting holes are all disposed at one side of the support panel; the other side of the support panel is provided with a force-applying mechanism; the force-applying mechanism is provided with a roller shaft at the end close to the guide groove; and the roller shaft is vertical to the support panel and penetrates through the guide groove. The setting treatment device is simple in operation and low in cost and can realize setting treatment for a plurality of turnout snow-melting fixtures. Besides, the setting treatment is convenient for mechanism installation and adjustment, is suitable for large-scale production and can realize the setting treatment of the turnout snow-melting fixture and guarantee the quality of the fixture.

The invention relates to a computer mobile terminal plugging control device, a matched plug connector and a control method. A rotary bearing sleeve movably sleeves a plugging intervention seat and a sliding plugging port, a plugging alignment seat is mounted at the top of the rotary bearing sleeve, a limiting insertion port is formed in the center of the plugging alignment seat, the top of the limiting insertion port communicates with a limiting groove formed in the top of the plugging alignment seat, the bottom of the limiting insertion port communicates with a limiting rotating cavity formed in the inner wall of the rotary bearing sleeve, and the bottom of the limiting rotating cavity communicates with the top face of the plugging intervention seat. The inner wall of the rotary bearing sleeve and the outer wall of the plugging intervention seat are provided with rotary limiting devices which are matched with each other; The product solves the problem of alignment when a traditional computer is connected with an external terminal device, when a matched plug connector is inserted into the product device, butt joint is achieved in a rotating and pressing mode, when the directions of butt joint ports are inconsistent, alignment of the directions of the butt joint ports is achieved in a rotating mode, the rotating angle is 180 degrees, and then limiting and overall protection of the plug connector are realized through the outer contour of the plugging alignment seat.

A spacing device of equipment for delivering welding workpieces in a circulating manner is used for solving the spacing problem of a slipping bracket during the operation of the equipment, is mounted on the equipment provided with a slipping workbench rack and a lifting workbench rack, and comprises a slipping spacing mechanism, a lifting spacing mechanism and a spacing stop block, wherein the slipping spacing mechanism comprises a spacing component and an unlocking piece; the spacing component is hinged to the slipping workbench rack of the equipment, and is matched with the unlocking block to control a slipping bracket; and the unlocking block is fixed on the lifting workbench rack of the equipment. The spacing device has the advantages that the structure is simple; the conception is ingenious; the performance is stable; the investment cost is low; the welding workpieces can be positioned reliably during a delivering process; automatic control of spacing and releasing is realized; the workpiece delivering efficiency is improved; and the shape precision and the position precision of the workpieces during follow-up processing are guaranteed.

The invention relates to a transfer mechanism, and aims to provide a telescopic device capable of realizing linear transfer and a transfer mechanism provided with the telescopic device. The transfer mechanism provided with the telescopic device comprises portal frames, wherein the telescopic device is arranged between the portal frames, the telescopic device and a portal frame support are provided with an upper rail and a lower rail, the upper rail and the lower rail are driven by a motor to move up and down, a transverse rail is arranged below the portal frames, and transverse movement is achieved through driving of the motor. According to the telescopic device of the technical scheme, a gear and rack transmission structure is adopted, linear transportation of goods is achieved through a three-layer sliding plate structure, the transportation distance reaches twice of the length of a telescopic mechanism, and the action mechanism of the whole telescopic device is wrapped in a supporting frame, so that the sanitation in the using process is ensured, and the telescopic device is relatively easy to maintain.

The invention provides a clutch. The clutch comprises a supporting piece connected with a rotating shaft, two clutch assemblies and elastic pieces cooperating with the clutch assemblies, each clutch assembly comprises two clutch blocks which are arranged in the axial direction, the four clutch blocks of the two clutch assemblies are arranged symmetrically relative to the axial arrangement direction of the clutch blocks and the clutch movement direction correspondingly, and the four clutch blocks are the same in structure. Therefore, when the clutch is manufactured, mold making only needs to be performed for one clutch block, then the four same clutch blocks can be configured as one clutch, so that molds are simplified, the mold cost is saved, and then the manufacturing cost of the clutch is reduced; and the clutch blocks provided by the clutch each have a hollow structure and a cavity portion so that the clutch blocks can be made into various complex structures to be applied to different occasions, the supporting piece is clamped between the upper clutch block and the lower clutch block of each clutch assembly, so that limiting of the supporting piece in the up-down direction is facilitated, and a quite good safety protection effect is achieved.

The invention discloses a distributed battery energy storage system dispatching operation method of considering voltage regulation. The method comprises the following steps of (1) carrying out data collection; (2) judging whether bus voltage V<bus> is over the limit or not, if the bus voltage is greater than a maximum voltage reference value V<ref-max>, entering the step (3), and if the bus voltage is smaller than a minimum voltage reference value V<ref-min> or the system is in a peak load condition Peak-Load=1, entering the step (4); (3) carrying out an overvoltage regulation process; (4) carrying out low voltage regulation and peak load reduction processes; (5) carrying out an instruction sending link of a controller, sending a control instruction to voltage regulating equipment or a battery energy storage system by the controller and enabling the voltage regulating equipment or the battery energy storage system to start a corresponding action; and (6) returning to the step (1) and observing the control effect of the bus voltage. The bus voltage is regulated through battery energy storage charging and discharging dispatching, the out-of-limit problem of the bus voltage is solved, and mutual optimization of the voltage regulating equipment and the battery energy storage system and a photovoltaic power generation system is achieved.

The invention discloses a lifting limit device of a marine pneumatic hoist hook, which comprises a winch, a pneumatic motor, a three position four-way hand-directional valve, a two position two-way pneumatic operated directional valve, a two position three-way pneumatic operated directional valve and a two position three-way pneumatic operated directional valve control mechanism, wherein the two output ends of a three position four-way pneumatic reversing valve are respectively connected with the two ends of the pneumatic motor; the output end of an air source is connected with the input end of the three position four-way pneumatic reversing valve through the two position two-way pneumatic operated directional valve; the output end of the air source is also connected with the input end of the two position three-way pneumatic operated directional valve; the output end of the two position three-way pneumatic operated directional valve is connected with the pneumatic control end of the two position two-way pneumatic operated directional valve, and the two position three-way pneumatic operated directional valve control mechanism is arranged on the upper side of a hook. The invention has the advantages of simple structure and low manufacturing cost, and the two position three-way pneumatic operated directional valve control mechanism consisting of a transmission steel wire rope and a hoisting block is adopted for limiting the hoist hook lifting, so the limiting problem when the marine pneumatic hoist hook is used for lifting under an explosion-proof environment is solved, and the lifting limit device can be applied to a movable type pneumatic hoist.

The invention discloses a flexible supporting device for a pump pipe of a film type LNG land storage tank. The device comprises a bottom plate, a top plate, embedded parts, fastening bolts, a supporting part, a connecting plate, a connecting column and a supporting pipe, each embedded part is of a plate-shaped structure with threaded holes, the two embedded parts are pre-embedded in one side, close to the inner tank, of the outer tank, one end of the supporting part is welded on the bottom plate, the other end is welded on the top plate, mounting holes matched with the threaded holes are formed in the bottom plate, the bottom plate is fixed to the outer tank through the fastening bolts, the connecting plate is welded to the top plate, a kidney-shaped hole is vertically formed in the connecting plate, the connecting column is arranged in the kidney-shaped hole, one end of the supporting pipe is fixedly connected to the connecting column, and the other end of the supporting pipe is fixedly connected to a pump pipe. Pump tower limiting is optimized into pump pipe distributed limiting, the manufacturing difficulty and the manufacturing cost are greatly reduced, the weight is greatly reduced, and transportation and installation are convenient.

The invention belongs to the technical field of uranium enrichment, and particularly relates to a worm gear structure concurrently serving as a limiting mechanism. The left half part and the right half part of a box are each of a hollow cylindrical structure and are staggered by 90 degrees in space, the upper portion of the left half part is connected with an end cover, the left half part of the box is provided with a worm gear, the right half part of the box is provided with a worm, and the worm gear and the worm are in a meshed state; the front outer wall and the back outer wall of the high portion in the center of the worm gear on the upper portion of the left half part of the box each extend outwards to form a boss plane tangent to the cylindrical structure, that is to say, the two boss planes protrude in the cylindrical structure; the two boss planes are each provided with an adjusting bolt, the height of the centers of the adjusting bolts is consistent with the thickness of the center of the worm gear, that is to say, the adjusting bolts can touch the worm gear when the worm gear rotates, the rotating angle of the worm gear is limited by the positions of the adjusting bolts, and then limiting on the valve opening and closing angle is achieved. According to the worm gear structure, valve opening and closing can be effectively achieved, the transmission requirement is met, and the problem about limiting of the opening and closing angle is solved.

The invention discloses a flexible bidirectional limiting mechanism for a stock bin door. The flexible bidirectional limiting mechanism comprises a bottom cover, a threaded connection unit, a guide unit and a buffering unit, wherein a speed reducing motor and a screw rod output shaft which are connected with each other are arranged in the bottom cover, one end of the threaded connection unit extends into the bottom cover and is in threaded connection with the lead screw output shaft, the other end of the threaded connection unit is connected with a bin door baffle, the guide unit is arranged on the threaded connection unit, the guide unit can provide guidance for movement of the threaded connection unit in the bottom cover, and the buffering unit can provide buffering for movement of the threaded connection unit in the bottom cover. The structure is exquisite, parts are simple and are tightly matched, and bidirectional mechanical limiting is achieved through cooperation of elastic potential energy of a spring of the buffer unit and a screw rod thread structure of the threaded connection unit; and the device has the advantages of simple disassembly and manufacture, low cost and the like.

The invention provides an underground water level detection device for hydrogeological exploration. The problems that in the underground water level detection process, a detector cannot be adjusted in real time along with the water level position, a well wall cannot be supported, the well wall collapses, and a well wall supporting cylinder is controlled to be folded and unfolded are solved. The device comprises a supporting base arranged on the ground and a measuring hole, the upper end of the supporting base is fixedly connected with a fixed transverse plate, the middle position of the fixed transverse plate is fixedly connected with a limiting circular ring sleeve, the limiting circular ring sleeve is fixedly connected with a plurality of sliding boxes, and sliding limiting sleeves are slidably connected in the sliding boxes in the radial direction of the limiting circular ring sleeve; a limiting ball is rotatably connected in the sliding limiting sleeve, the sliding limiting sleeve is connected with the sliding box through a spring, a plurality of measuring cylinders are coaxially arranged in the measuring hole and are connected end to end up and down, the lower end of the measuring cylinder at the lowest end is fixedly connected with a conical positioner through a bolt, and the measuring cylinder at the upper end is arranged in a limiting circular ring sleeve; the device is exquisite in structure and has very high practicability.