324results about How to "Realize the limit effect" patented technology

The invention discloses a control system for stabilizing and reducing swing through a tuning heaving plate of a deep-water dynamic-positioning semi-submersible platform, and relates to a tuning heaving plate system of the deep-water semi-submersible platform. Lower ends of two platform stand columns on the same side of a deck of the semi-submersible platform are fixedly connected with a platform floating box, and the tuning heaving plate systems are respectively mounted at the bottom of the platform floating box and directly under the platform stand columns; each of the tuning heaving plate systems comprises a heaving plate, connecting truss frames, a restoring spring, active variable damping devices and limiting springs. According to the control system disclosed by the invention, a heaving response can be controlled or the rolling freedom degree or the pitching freedom degree can be stabilized respectively by regulating the rigidity of the restoring springs according to marine conditions or actual requirements, so that a motion response of the freedom degree of a perpendicular plane which cannot be controlled by a dynamic positioning system is controlled, and the semi-submersible platform is suitable for worse marine conditions.

The invention discloses an anti-pulling, limiting and earthquake-insulating device integrated by guide rails and vertical ropes, wherein the device comprises an upper connection plate, a lower connection plate, a bearing main body, an upper guide rail, a lower guide rail, sliding blocks, limiting baffles and vertical ropes, wherein the vertical ropes are connected with the bearing main body in parallel; the upper guide rail and the lower guide rail are respectively connected with the upper connection plate and the lower connection plate; the upper guide rail and the lower guide rail are cross-shaped; sliding cavities are formed in the guide rails; the sliding blocks can slide in the cavities along the guide rails; the limiting baffles are arranged at two ends of the cavities; the vertical ropes are fixed between an upper sliding block and a lower sliding block. According to the anti-pulling, limiting and earthquake-insulating device, the sliding blocks slide along the guide rails; the ropes retain the vertical state all the time, so that the ropes can supply effective tension when a bearing of the device has the designed shear displacement; meanwhile, when the bearing has great deformation, the sliding blocks move to the limiting baffles; the ropes obliquely pull and can limit the continuous great deformation of the bearing, so that the anti-pulling and anti-overturning performances of building structures under the action of multi-dimensional earthquake and wind load can be improved.

The invention discloses an adjustable soil sampling device for environmental monitoring, and relates to the technical field of environmental monitoring. The adjustable soil sampling device comprises amoving frame, a servo motor is in driving connection with a lifting mechanism used for lifting soil, an elastic stabilizing mechanism vertically corresponding to a vertical through hole is installedon the lifting mechanism in a sliding mode, and a conveying mechanism used for conveying the soil is installed on the lifting mechanism. The lifting mechanism is driven by the double-shaft motor to achieve the vertical adjusting effect on the lifting mechanism; the vertical insertion pipe extends into soil; the spiral shaft is rotated and lifted upwards to sample soil; flexible sampling of soil atdifferent depths is achieved according to adjustment of the lifting mechanism, an annular plate in the elastic stabilizing mechanism drives an inserting nail to be inserted into the soil, the limiting effect on the soil around the sampling position is achieved, the stability of the soil structure is guaranteed, the stability degree of the soil sampling process is higher, and the soil sampling effect is improved.

The invention discloses a split type radio frequency coaxial adaptor which comprises a nut, a casing body, an outer conductor and inner conductors. The casing body comprises an insertion head end and an insertion base end, the outer conductor is arranged in the casing body and is in interference fit with the casing body, the inner conductors are arranged in the outer conductor, and the nut is arranged at the insertion head end of the casing body. The inner conductor comprises a first inner conductor and a second inner conductor, the two ends of the first inner conductor are provided with a first insertion pin and a first insertion hole respectively, the two ends of the second inner conductor are provided with a second insertion pin and a second insertion hole respectively, the first insertion pin is located at the insertion head end of the casing body, the second insertion pin is located in the first insertion hole, and the second insertion hole is located in the insertion base end of the casing body. The processing technology of a radio frequency electric cable adaptor is simplified, production efficiency is improved, production cost is reduced, particularly, such as a split type 1.85mm radio frequency coaxial adaptor, and the voltage standing wave ratio of the adaptor is smaller than or equal to 1.45 under DC-65GHz.

The invention provides a traction frame for a trailer and relates to the technical field of traction frames. The traction frame for the trailer comprises a traction frame body, a traction plate and a buffering device; the traction frame body is a triangular frame body, the inside of the triangular frame body is fixedly connected with a stiffening beam, two angles of the triangular frame body are parallelly and fixedly connected with traction plates respectively, the outer side of each traction plate is provided with a limiting plate bracket, the other end of each traction plate is connected with a connection block, the two sides, forming the another angle, of the triangular frame body are connected with the buffering device, and the buffering device includes a mounting sleeve, a traction shaft and a compression spring; the end portion of the traction shaft is in threaded connection with a slotted nut, a retaining ring is arranged on the position, located on the outside of the mounting sleeve, of the traction shaft, the compression spring is arranged between the retaining ring and the mounting sleeve, and the other end of the traction shaft is connected with a traction hole. According to the traction frame, in the acceleration and deceleration processes, a vehicle body of the trailer keeps smooth and steady, and the braking technical effect is achieved when the trailer is parked.

The invention relates to the technical field of carton processing and discloses a carton indentation device which comprises a transmission mechanism, a convex block and a concave block, wherein the transmission mechanism comprises a driving wheel, a driven wheel and a conveyor belt; the conveyor belt comprises a propulsion part and a bearing part; the propulsion part comprises a connecting plate;a plurality of openings are formed in the connecting plate; the bearing part comprises a plurality of support rods; a fixed disc and a first sliding chute are arranged on one side of the propulsion part; a fixed rod is horizontally arranged between the driving wheel and the driven wheel; the concave block is fixedly connected onto the fixed rod; a first support roller is fixedly connected with theside, close to the fixed disc, of the fixed rod; and a second support roller is in sliding fit with the side, far away from the fixed disc, of the fixed rod. The carton indentation device can adjustthe distance between the two support rollers and the sunken width of an indentation and transmits corrugated boards discontinuously to enable the quality of the manufactured corrugated boards to be higher.

The invention discloses an automatic fallen yarn coiling system for polyester production, and belongs to the technical field of polyester production. The automatic fallen yarn coiling system for polyester production comprises a base, a first baffle is fixedly connected to the base, and the end, away from the first baffle, of the base is slidably connected with a second baffle; the side wall of thefirst baffle is connected with a first motor, the output end of the first motor is connected with a first rotating shaft, and the end, away from the first motor, of the first rotating shaft is rotationally connected with the second baffle; the first rotating shaft is connected with a winding disc, and the first rotating shaft is connected with a clamping sleeve matched with the winding disc; a second rotating shaft is slidably connected with a thread distributing mechanism corresponding to the winding disc. The second baffle is slid to be connected with the first rotating shaft, so that the function of supporting the first rotating shaft is achieved; then polyester threads are wound on the winding disc through the thread distributing mechanism, then the first motor is started to make thefirst rotating shaft rotate to drive the winding disc to rotate, and winding and coiling effects are achieved.

The invention discloses a polishing pad finisher used for wafer chemical-mechanical planarization equipment. The polishing pad finisher is mainly composed of a rack, a motor, a speed reducer, an air bag, a synchronous belt, belt wheels, a swing arm, a supporting shaft, a supporting bottom plate, a ball universal structure, a detecting sensor and other components. A lever mechanism inflates the air bag to drive the swing arm to rise, fall and exert finishing force on a polishing bench. By the adoption of the belt wheel transmission mode, the motor and the speed reducer are placed away from a polishing area, and meanwhile a stainless steel protective cover is installed outside the whole finisher to prevent internal electronic components from being corroded. The ball universal structure is arranged at the finishing end to solve the contact problem of a finishing wheel and the polishing bench surface. The polishing pad finisher is simple in structure and control mode, free of cross pollution and good in finishing effect and meanwhile remarkably prolongs service life of a polishing pad.

A multi-directional movable limiting device comprises a lock bolt and lock nuts matched with the lock bolt, wherein the lower part, located between the two lock nuts, of the lock bolt is sleeved with a symmetric limiting plate with a bending angle; a sleeve hole in the center of the limiting plate is a large kidney-shaped hole; small kidney-shaped holes are formed in two ends of the limiting plate; the limiting plate is connected with limiting blocks by the aid of lock screws and nuts; the lock bolt is fixed on a supporting stand column; the position of the limiting plate on the lock bolt can be adjusted by the aid of the lock nuts and the large kidney-shaped hole; positions of the limiting blocks on the limiting plate can be adjusted by the aid of the small kidney-shaped holes; and the double lock nuts play a locking role. The device adopts simple parts such as the standard long stainless steel bolt, nut assemblies, the elastic metal limiting plate, the nylon limiting blocks and the like, is simple in structure, has stable performance and is high in replaceability and maintainability.

The invention relates to the field of circuit breakers, in particular to a single modularization circuit breaker. The single modularization circuit breaker comprises a switch-on mechanism, a switch-off mechanism and an energy storage mechanism, wherein the energy storage mechanism comprises an energy storage spring and a driving device; the driving device drives the energy storage spring to storeenergy by means of a transmission assembly; the energy storage spring and the transmission assembly are arranged at one side of a wall board; the switch-on mechanism and the switch-off mechanism are sequentially arranged at the other side of the wall board and form a module main body; the driving device is positioned above the switch-off mechanism. The single modularization circuit breaker solvesthe problems that in the prior art, the circuit breakers are large in volume and more in structural modules.

The invention discloses a protective installation device of a computer mainboard for the Internet. The device comprises a housing, A mounting cavity with an opening in the upper end is formed in the shell. A plurality of heat dissipation holes communicated with the installation cavity are formed in the outer side wall of the shell in a penetrating mode. a placement plate is arranged at the inner bottom of the mounting cavity; a placement groove is formed in the upper end of the placement plate; A main board is arranged in the containing groove, limiting devices are arranged on the opposite inner side walls of the mounting cavity, the opposite side walls of the two limiting devices abut against the outer side wall of the main board, a protective plate is arranged at the upper end of the shell, a cooling fan is arranged on the side wall of the bottom of the protective plate, and the protective plate and the shell are connected through two connecting devices. The mainboard protection device is reasonable in structural design, a very good limiting protection effect on the mainboard can be achieved, but also it is convenient for a user to disassemble the mainboard, and the user can conveniently overhaul or replace the mainboard.

The invention discloses a feeding device of textile equipment. The feeding device comprises a bottom plate, wherein a cloth winding roller is arranged on one side of the top of the bottom plate, and one end of the cloth winding roller is provided with a connecting pin in an embedded mode; and one end of the connecting pin is rotationally connected to a supporting pin through a pin shaft, the supporting pin is rotationally connected to the bottom plate through a supporting sleeve, the other end of the connecting pin is fixedly connected to a limiting shaft, and a threaded rod is arranged at thebottom of the limiting shaft. According to the feeding device of textile equipment, when the cloth winding roller needs to be disassembled or installed, a limiting hoop is driven to move through a rotating disc and the threaded rod, so that the limiting hoop is separated from the limiting shaft, then the cloth winding roller is inclined through lifting of the limiting shaft, and the cloth windingroller is pulled out; and if the installation is needed, the steps are operated in the reverse mode so that the cloth winding roller can be disassembled and installed, in the operation process, the rotating disc is controlled to limit the cloth winding roller, and the operation is simple and convenient.

The invention discloses a displacement limit force transmission device for jacking up a building. The device comprises lattice columns, wherein the bottoms of the lattice columns are fixed on the ground or a bearing platform and form a displacement limit frame fixedly arranged on the outer part of a bottom layer column of the building or the outer part of a pier column of a bridge. Therefore, the jacked-up building or bridge can only vertically move upwards in the lattice columns; and once the building or bridge has a trend of conducting longitudinal/lateral displacement on the horizontal plane, branch angle steel can limit the displacement trend and transmits the horizontal force to the whole lattice columns until the bearing platform through horizontal section steel or oblique section steel, so that a displacement limit effect can be well achieved.

The invention belongs to the technical field of medical instruments for surgery and particularly relates to a medical brain drill. The medical brain drill is characterized by further comprising a limiting device, the limiting device is provided with a drill bit limiting hole and a drilling machine connecting rod, one end of the drill bit penetrates through the drill bit limiting hole to be fixedly connected with the limiting device, the other end of the drill bit is fixedly connected with the drilling machine connecting rod, a thread is arranged at the front end of the drill bit, an iron drill bit connecting shaft is arranged at the front end of a drilling machine, a groove matched with the drilling machine connecting rod is formed in the center of the iron drill bit connecting shaft, a magnet is arranged in the groove, a sterile sleeving bag is arranged out of the drilling machine, an elastic opening is formed in the sterile sleeving bag and located in the iron drill bit connecting shaft, and the drill bit is located on the exterior of the elastic opening. The medical brain drill has the advantages that the medical brain drill does not need to be used in cooperation with a positioning device of a stereotactie surgery instrument, potential dangers caused by invalidation of the limiting device are eliminated, and the medical brain drill is safer and more reliable; the drill bit is connected with the drilling machine through magnetic force, dismounting and mounting are convenient, and the drill bit cannot disengage from the drilling machine in the surgery process.

The invention relates to the field of daily supplies, in particular to a child seat locating and rotating device. The child seat locating and rotating device comprises a base and a cover board arranged on the surface of the base in a closed manner. A clamping and locating device is arranged in the base. A round hole is formed in the center of the cover board. A guide hole is formed in the front end of a closed cavity formed by the base and the cover board. The inner end of a rotary handle penetrates the guide hole and is engaged with a driven gear through a locking device arranged at the inner end of the rotary handle. A limiting device is arranged in the position, close to the left side of the guide hole, in the base. A fixing and connecting device is movably inserted in the two sides of the base. A rotating device body is arranged above the cover board. The child seat locating and rotating device is reasonable in structure, the child seat locating and rotating device can still rotate according to the requirements after a child seat is installed and located, adjustment is convenient, the child seat can be adjusted to the proper direction according to the requirements of a parent, and the parent can take care of a child more conveniently; and multi-stage locating and limiting effects can be achieved through the child seat locating and rotating device, fixing is firmer, a safety coefficient is high in the use process, and the requirements of people are more effectively met.

The invention discloses a variable side wall quick decorative keel frame which includes a profile mechanism, a limiting pin mechanism, a tile limiting plate mechanism and a joint connector mechanism.The profile mechanism includes four skeleton splicing profiles, a chute and an assembling port, the four skeleton splicing profiles are fixedly connected through the joint connector mechanism in the assembling port, the tile limiting plate mechanism, the limit pin mechanism and the skeleton splicing profiles are slidingly installed through the chute, the joint connector mechanism includes a positioning block and a port splicing joint, a through hole is formed in the upper end of the positioning block, a positioning mechanism is arranged in the through hole, a rotary interface is arranged at the side face of the positioning block, and a threaded rod is fixedly arranged at one end of the port splicing joint. By means of the variable side wall quick decorative keel frame, skeleton structurescan be conveyed to a decoration site to be spliced, garbage generated during concrete bonding installation is avoided, disassembling and replacing are convenient, and the variable side wall quick decorative keel frame can be used for adjusting the height of the skeleton structures.

The invention relates to an automatic rinsing mechanism used for white tea processing. The mechanism comprises a lower rack and an upper rack, the lower rack is provided with a water containing device, the upper rack is provided with a rinsing rotating shaft and a rinsing stepping motor which are matched and are arranged in the front and back horizontal direction, the rinsing rotating shaft is sleeved with a rinsing rotating disc, charging devices are evenly arranged on the rinsing rotating disc, when the charging devices are located on the lowest portion of the rinsing rotating disc, the charging devices are cooperated with the water containing device, each charging device comprises a charging rotating base which is connected with the rinsing rotating disc, the charging rotating bases areconnected with opened charging net gourd ladles through charging connection pipes in the radial direction, openings of the charging net gourd ladles are matched with charging net covers, and the charging net covers are connected with net cover opening and closing devices arranged on the charging rotating bases. The rinsing rotating shaft and the rinsing rotating disc drive the charging devices torotate in the vertical plane, rinsing cleaning effect of tea leaf raw material can be continuously and automatically achieved, the rinsing time can be controlled, rapid rotation is achieved to achieve water throwing out effect, and the rinsing effect is improved.

The invention discloses a brake disc connection structure for a water-cooled brake. The brake disc connection structure comprises a driving disc meshing with a gear hub. Brake discs are arranged on the two sides of the driving disc and are called the left brake disc and the right brake disc. The left brake disc and the right brake disc are of a regular polygon structure. Connection structures are arranged on all opposite side edges of the left brake disc and the right brake disc. Each connection structure comprises a locating column, a guide column, a guide groove and a locating plate, wherein the locating column is fixedly arranged on the right side face of the left brake disc in the axial direction, the guide groove is formed in the left side face of a right locating disc in the axial direction, the locating column protrudes from the left brake disc rightwards, and the right end of the locating column goes deep into the guide groove; the guide column is fixedly connected to the right end of the locating column; the locating plate is arranged at the groove opening of the guide groove, and the locating plate is connected with the right brake disc detachably and fixedly; and the locating plate is provided with a locating hole, and the locating column penetrates though the locating hole. According to the brake disc connection structure, the installation and maintenance efficiency is high, and a large number of manpower and material resources are saved.

The invention discloses a light truck and a wire harness pipe clamp thereof. The wire harness pipe clamp comprises a mother board, a first sub-board rotatably installed on the mother board through a rotating shaft and a restraining band used for forming a wire harness containing space; the wire harness pipe clamp further comprises a second sub-board fixedly connected to the mother board; one end of the restraining band is fixedly connected to the mother board; the other end of the restraining band is fixedly connected to the second sub-board; a plurality of first pressing teeth are arranged at the side, facing towards the second sub-board, of the first sub-board; a plurality of second pressing teeth are arranged at the side, facing towards the first sub-board, of the second sub-board; when the first sub-board rotates to an extreme position close to the mother board, the first pressing teeth and the second pressing teeth are engaged and fixed. Therefore, a wire harness can be restrained through the compression between the first sub-board and the second sub-board, the restraining band is prevented from being in contact with the pressing teeth, so that the restraining band is prevented from fracture damage, the service life of the pipe clamp is prolonged, and the safety of the wire harness is guaranteed.

The invention discloses railway rolling stock derailment preventing equipment. The derailment preventing equipment comprises a support base arranged below a rail sleeper beam, a mounting bracket arranged on a wheel shaft box, and a derailment preventing device arranged at the tail end of the mounting bracket. The railway rolling stock derailment preventing equipment has the effects of realizing a limiting effect of relative motion between wheels and steel rails in the vertical direction and preventing the derailment to the greatest extent.

The invention discloses a strip nail blanking device comprising an upper die plate and a lower die plate. The upper die plate is provided with an upper blade. The lower die plate is provided with a lower blade. During die assembly, the upper blade and the lower blade simultaneously cut the two end faces of a strip nail material. The strip nail blanking device further comprises a material pushing mechanism. The material pushing mechanism comprises an L-shaped pushing plate, a pull rod and a reset spring. One end of the pull rod is connected with the L-shaped pushing plate, and the other end ofthe pull rod is arranged in the lower die plate in a sliding manner. The end, arranged in the lower die plate, of the pull rod is connected with a first magnet. The reset spring is arranged outside the pull rod in a sleeving manner. The lower end face of the end, close to the containing cavity, of an upper pressing plate is provided with a second magnet. During die opening, the first magnet is close to the second magnet, and the magnetic attraction force drives the L-shaped pushing plate to push the strip nail to horizontally move; and during conducting die assembly again, the first magnet andthe second magnet are separated, and under the action of the reset spring, the L-shaped push plate resets. The strip nail blanking device can automatically push the strip nail obtained after blankingto a next station, manual intervention in carrying is not needed, and the work efficiency is improved.

The invention provides a push-pull fixing mechanism, comprising a support body, wherein the support body is provided with a push rod groove; One end of the push rod assembly is arranged in the push rod groove, and the other end is a first functional end; At least one pull rod assembly, one end of the at least one pull rod assembly is assembled in the support body, and the other end is a second functional end; The push rod assembly and the at least one pull rod assembly are disposed parallel to each other. The push-pull fixing mechanism of the invention by supporting the body, the push rod assembly and the pull rod assembly connect the two mechanisms, When in use, the second functional end of the pull rod assembly is fixed, and then the push rod assembly is adjusted and fixed by a special tool to form a stable push-pull structure, which can not only provide sufficient support force for the mechanism to be connected, ensure the load-bearing requirements of the mechanism to be connected,but also meet the requirements of protruding a certain length, and facilitate the adjustment and maintenance; When not in use, the push rod assembly and the pull rod assembly are retracted on the support body and occupy small space.

The invention discloses a wire rope fastening type positioning device capable of preventing objects from tilting. The wire rope fastening type positioning device comprises a first connection plate anda second connection plate. A steel wire rope is used for limiting and fixing; a long-distance limiting effect can be achieved; a long-distance mounting and limiting effect can be achieved between ananti-tilting part and a fixing part; a moment principle is used for achieving low-strength damage to mounting parts; meanwhile, stronger anti-tilting strength is provided; the device is provided withspherical structure shape and size type rotary connection mechanisms; the angle rotation can be achieved between fixing parts, so that tension trends to be straight; in addition, the device is provided with a thread structure adjusting type part limiting mechanism, so that the part limiting effect can be achieved; meanwhile, the disassembly of the parts is also not influenced; furthermore, the device is provided with a reverse thread structure type length adjusting mechanism, so that reverse threads are used for enabling the steel wire rope to be in a tightened state; and the safety is improved.