1130 results about "Suspender belt" patented technology

The invention discloses a unit type curved surface curtain wall installation device and method, and relates to the technical field of curtain wall construction, and the unit type curved surface curtain wall installation device comprises a plurality of detection units which are respectively installed on each control point on a unit structure body and are used for detecting actual measurement coordinates of the corresponding control points; the fine adjustment mechanism is connected to the lower end of the hoisting belt of the crane and is used for finely adjusting the position of the unit structure body; the control module is electrically connected to the detection unit and the fine adjustment mechanism; wherein the control module is configured to obtain actual measurement coordinates of each control point fed back by the detection unit; comparing the actually measured coordinates of each control point with pre-stored theoretical coordinates in a BIM model to obtain a deviation value of each control point; performing overall pose analysis based on the deviation value to obtain a pose deviation of the unit structure body in the space; generating a movement control quantity corresponding to each control point based on the pose deviation; and sending a movement control instruction to the fine adjustment mechanism according to the movement control quantity. The installation method has the effect of improving the installation efficiency.

The invention discloses a high-pier large-span extra-large bridge suspended pouring beam hanging basket construction method, and belongs to the field of bridge engineering construction.The method comprises the following steps that hanging basket rails are installed, the precision is controlled, and a hanging basket comprising a double-channel-steel main truss, a manganese steel sling, an arc-shaped flow guide plate and a honeycomb formwork is assembled; grading pre-pressing is carried out according to the specified multiple of the design load, and the pre-camber of the template is corrected by adopting a BP neural network to ensure that the finished bridge linear error meets the requirement; a mechanical-hydraulic-electrical integrated intelligent control system is deployed, and the traveling speed and synchronism of the hanging basket are controlled through double-oil-cylinder driving, a 5G digital twin platform and an edge computing technology, so that rapid alarm is realized when the load is abnormal; segmental circulation construction is carried out, and when the environment wind speed reaches a set value, a hydraulic rail clamping device is automatically locked; a model is established by using ANSYS software, and simulation verification is performed on multiple types of key working conditions to ensure that the safety coefficient of the structure meets the specification requirement. The construction precision and safety are guaranteed, and the method adapts to complex environments.

The invention discloses a deformation monitoring and early warning device of an insulating soft sling based on sensor monitoring, which comprises a soft quality inspection sling, a flexible sensor module and a connector, and is characterized in that the flexible sensor module is arranged on one side of the soft quality inspection sling; the flexible sensor module comprises a first detection fiber bragg grating, a second detection fiber bragg grating, a composite coating, an insulating sleeve, reinforcing ribs, a glue storage groove and a protective mounting sleeve, and the reinforcing ribs are arranged on the upper and lower sides of the first detection fiber bragg grating and the second detection fiber bragg grating. According to the deformation monitoring and early warning device for the insulating soft sling based on sensor monitoring, a first detection fiber bragg grating and a second detection fiber bragg grating are used for detecting the deformation quantity generated when the soft sling works, and the detected data are uploaded to system terminal equipment through a mediator; in other words, a worker can check the working state of the soft quality repair sling through the system terminal device, and the intelligent level of the soft quality repair sling is further improved.

The utility model belongs to the technical field of transportation packaging bags, and particularly relates to an anti-expansion liquid bag for a container, which comprises a bag body made of a PE (polyethylene) film, the bag body is cuboid, and the anti-expansion liquid bag is characterized in that a sleeve made of PP (polypropylene) cloth is sleeved on the outer side of the bag body along the front-back direction, more than two waist hoops are coaxially arranged on the sleeve, and the inner perimeter of each waist hoop is smaller than the outer perimeter of the bag body; the left side and the right side of the sleeve are respectively and fixedly provided with more than two hanging belts, each hanging belt is provided with a free section upwards extending out of the sleeve, and the length of each free section is larger than the width of the bag body. The waist hoop can play a role in tightening the bag body, the hanging belt can be fixed on a container hanging ring on one side opposite to the hanging belt in a crossed mode, and when liquid in the bag body surges left and right in the transportation process, the hanging belt can pull the bag body in the direction opposite to the surging direction of the liquid, so that the bag body is prevented from shaking left and right by a large margin; the impact force on the side wall of the container is greatly reduced, so that the container expansion is effectively prevented.

Holder which features the following: a fastening arrangement (10) designed for fastening to a mounting piece (50); a support unit (20) rotatably arranged on the fastening arrangement (10) and having a chamber (21), wherein the chamber (21) is accessible from the outside or from the environment; a pin (30) that can be inserted into the chamber (21), the pin (30) having a pin tip (31) and a connecting point (32) spaced apart from the pin tip (31); and a cord winding device (40) arranged within the support unit (20), wherein the cord winding device (40) has a cord (41) extending into the chamber (21), with one end of the cord (41) being attached to the connection point (32) of the pin (30), wherein the cord winding device (40) provides an unwound configuration enabling a user to handle the pin (30) outside the chamber (21), and wherein the cord winding device (40) provides a coiled configuration in which a restoring or coiling force acts on the cord (41) and the pin is positioned inside the chamber.

The invention provides a hanging basket steel plate sling limiting device, and relates to the technical field of continuous beam cantilever casting auxiliary tools, the hanging basket steel plate sling limiting device comprises a steel plate sling, a clamping plate, a working pin and a limiting assembly; the limiting assembly comprises a placing plate, a supporting plate and fixing plates, the supporting plate is arranged at the lower end of the placing plate, fixing assemblies for connecting the supporting plate and the clamping plates are arranged in the supporting plate, the two fixing plates are symmetrically arranged, connecting pipes are connected to the outer sides of the fixing plates, and the ends, away from the fixing plates, of the connecting pipes are connected with moving plates which are connected with fixing rods; an inner rod is elastically arranged in the fixing rod, one end of the inner rod extends out of the fixing rod and is fixedly provided with a limiting plate, through holes for the limiting plate to penetrate through are correspondingly formed in the clamping plate and the fixing plate, and a control assembly for controlling the connecting pipe to move in the direction perpendicular to the fixing plate is arranged on the fixing plate. The invention solves the problems that the sling is not positioned in the middle of a working pin, so that the distribution of load on the sling is influenced, the deflection of a hanging system is further caused, and local overload or uneven stress is caused.

The invention relates to the technical field of lifting appliances, in particular to a double-point unloading lifting appliance tool for blades of a wind driven generator, which is characterized in that adjusting frames are arranged at two ends of a longitudinal beam, a flat lifting belt is connected between the two adjusting frames, and the flat lifting belt supports the blades of the wind driven generator from bottom to top; a flexible airbag is fixedly adhered to the lower surface of the lifting plate, an annular plate is fixed to the upper surface of the lifting plate, and a communication port is formed in the surface of the lifting plate; a negative pressure cylinder is arranged on the peripheral side of the flexible air bag, and a sealing piston matched with the negative pressure cylinder is installed in an inner cavity of the negative pressure cylinder in a sliding mode. The device has the beneficial effects that a lifting plate is arranged below a longitudinal beam, a lifting disc is vertically installed in an inner cavity of an annular plate in a sliding mode, an inner cavity of a flexible air bag is inflated, the flexible air bag expands and presses down and tightly presses a fan blade, a negative pressure cylinder is adsorbed to the surface of the fan blade, and the fan blade is positioned in the horizontal direction; the device can effectively prevent the fan blade from shaking under the influence of airflow in the air, and the hoisting stability is improved.

The invention provides a vertical adjusting device for a hanging basket sling in bridge cantilever construction. The vertical adjusting device comprises a hanging basket body, an adjusting master control platform, a sling, an adjusting control assembly, a temporary locking assembly, a measuring assembly and an auxiliary supporting assembly. One end of the hanging basket body is installed on a bridge, the other end of the hanging basket body is overhung to the outer side of the bridge, the adjusting master control platform is installed at the other end of the hanging basket body, and the lower end of the sling is connected with the hanging basket body. The adjusting control assembly, the temporary locking assembly, the measuring assembly and the auxiliary supporting assembly are installed in the adjusting main control platform, and the hanging belt penetrates through the adjusting main control platform and is vertically and adjustably arranged through the adjusting control assembly; the temporary locking assembly is temporarily clamped on the hanging belt, a plurality of holes are formed in the hanging belt at equal intervals, the auxiliary supporting assembly can vertically penetrate through the hanging belt through one hole, and the measuring assembly is in movable contact with the hanging belt. The invention relates to the technical field of bridge construction, and can solve the problems of insufficient precision and low efficiency of manual adjustment of a hanging basket sling in the prior art.

The invention discloses a double-sling suspension system of a suspension grouting bridge fabrication machine, and belongs to the technical field of highway and railway bridge concrete construction. The lifting mechanism is positioned between the leveling carrying pole beam and the front upper cross beam and is in driving connection with the leveling carrying pole beam; the two sling carrying pole beams are arranged at the lower end of the leveling carrying pole beam at intervals and are arranged on the two sides of the lifting mechanism; the two hanging belts are arranged corresponding to the leveling carrying pole beam, one end of each hanging belt is connected with a hinge lug pin shaft of the hanging seat of the front lower cross beam, and the other end of each hanging belt sequentially penetrates through the middle of the front upper cross beam, the hanging belt carrying pole beam and the leveling carrying pole beam; and the two fine adjustment mechanisms are arranged corresponding to the two sling carrying pole beams, and the fine adjustment mechanisms are arranged between the sling carrying pole beams and the front upper cross beam. The lifting points are reduced to four, the adjusting efficiency of the bottom die is improved by 1 / 3, and the problems of large labor intensity, mutual restriction and poor stress of manual control due to multiple lifting points are solved.

The utility model discloses an automatic calcium powder weighing and bagging structure, and relates to the field of bagging structures. An automatic calcium powder weighing and bagging structure comprises a supporting frame and further comprises a discharging pipe communicated with the lower portion of the supporting frame, a supporting plate is fixedly connected to the discharging pipe, and a supporting rod is fixedly connected to the supporting plate; the supporting rod is rotationally connected with a second rotating rod, and the other end of the second rotating rod is slidably connected with a sliding rod. The second rotating rod is fixedly connected with a hook, and the sliding rod is fixedly connected with a clamping plate. The ton bag is used for receiving the calcium powder falling from the discharging pipe; the hook is used for connecting a sling of the ton bag; when the sliding rod slides to drive the clamping plate to clamp and seal the bag opening of the ton bag, the second rotating rod and the hook rotate, and the hanging belt of the ton bag is tensioned towards the inclined upper part of the outer side by the hook; the material receiving opening of the ton bag can be clamped and sealed, dust is prevented from escaping when calcium powder is added into the ton bag, and meanwhile a user can replace and place a stacking bag conveniently.

The invention relates to the technical field of packing scale equipment, and provides a special packing scale for powdery sodium cyanide and a control method thereof.The special packing scale comprises a feeding hopper and a vibration table which are distributed up and down, a connecting flange coaxially fixed to a discharging opening of the feeding hopper, and a receiving hopper which is coaxially connected to the connecting flange in a sleeving mode, and the outer wall of the receiving hopper is annularly provided with a driving gear and is driven by a motor on the feeding hopper; at least one concave cavity is formed in the side wall of the receiving hopper, a rod body is hinged in the concave cavity, a replaceable balancing weight is arranged at the free end of the rod body, when the receiving hopper rotates, the rod body is unfolded under the action of centrifugal force and knocks a ton bag sling, meanwhile, the vibration table acts on the bottom of a ton bag, and the vibration table and the receiving hopper cooperatively excite the standing wave effect of the ton bag. The rod body periodically knocks the sling under the action of centrifugal force, and the frequency can be adjusted through the balancing weight. When the knocking frequency is close to the inherent frequency of the ton bag, vibration of the hanging belt can be transmitted to the whole bag body, the resonance phenomenon is caused, the vibration table at the bottom is matched to excite the standing wave effect, and loosening and even distribution of materials are achieved.

The invention discloses hoisting equipment for steel structure installation, and relates to the technical field of steel structure hoisting, the hoisting equipment comprises a hoisting arm and a hydraulic device, the end, away from the hoisting arm, of the hydraulic device is provided with a telescopic clamping jaw, the hoisting arm is internally provided with a moving assembly, and the outer side of the hydraulic device is provided with an anti-falling assembly and a rebound assembly; according to the anti-falling device for the steel structure, locking claws on a follow-up disc are meshed with inner ring teeth of a locking disc, and the follow-up disc is matched with an annular disc, so that a hanging belt is rapidly locked, and therefore the anti-falling effect of the steel structure is achieved, large enough force is applied at the moment when the steel structure falls, a rotating shaft drives the annular disc to rapidly rotate, and the anti-falling effect of the steel structure is achieved. The follow-up disc and the locking disc are combined through centrifugal force, so that the sling is rapidly locked, the whole equipment has redundant protection of the sling, a steel structure can be effectively prevented from continuously falling, falling accidents are avoided, and the safety of constructors is guaranteed.

A styptic harness tourniquet used by hands for providing a first aid to stop external arterial bleeding from injured limbs. The harness consists of a casing with Velcro fastener, a sling, a buckle at one end of the casing and a base with fixator with strap, windlass rod attached to the sling. The casing has at least two layers, the buckle contains at least one hole, the base contains at least six holes, and the strap of the fixator contains at least one hole. The holes in the buckle and base have teeth on one side. The windlass rod contains at least 1 cm of a smooth surface and at least 1.5 cm of a ribbed surface at the edges. The harness increases the reliability of the structure and the efficiency of its operation.

The utility model discloses a high-altitude automatic hooking device of a lifting belt for wind power, which belongs to the technical field of mechanical manufacturing and comprises a beam body, a lifting mechanism is arranged on the beam body, and a traction rope is arranged at the output end of the lifting mechanism; the two hook mechanisms comprise connecting frames, the two connecting frames are connected with the two ends of the beam body respectively, penetrating grooves are formed in the connecting frames, driving assemblies are arranged on the connecting frames, the output ends of the driving assemblies are fixedly connected with telescopic shafts parallel to the ground, and the telescopic shafts penetrate through the side walls of the connecting frames and extend into the penetrating grooves; guide assemblies are arranged on the connecting frame, and the traction rope extends into the penetrating groove through any guide assembly. Rigid connecting rings are fixedly connected to the two ends of the hanging belt respectively, the bottom of the traction rope extends out of the penetrating groove and is fixedly connected with any rigid connecting ring, and the two telescopic shafts are slidably connected with the inner walls of the two rigid connecting rings respectively. According to the utility model, the high-altitude automatic hooking operation of the bag hanging belt can be completed, and the operation safety is greatly improved.

The hospital gown special for the ICU patient comprises a one-piece gown and sleeves arranged on the left side and the right side of the one-piece gown, the one-piece gown comprises a front part and a rear part connected with the front part, a trapezoidal neckline is arranged on the front part, and a first window and first covering cloth used for shielding the first window are arranged on the portions, on the two sides of the trapezoidal neckline, of the front part respectively. A hanging belt is formed between the trapezoidal neckline and the first window, and the hanging belt is formed by movably connecting two cloth belts. Due to the design of the trapezoidal neckline, the neckline is wider, and tracheal incision nursing is facilitated; the first window on the left side of the trapezoidal neckline is used for routing of an electrocardiograph monitoring lead wire, and the first window on the right side of the trapezoidal neckline is used for penetration of a puncture pipeline.

A semi-automatic blanking machine assisting laser pipe cutting blanking comprises a lifting mechanism and a blanking mechanism, the lifting mechanism is composed of a plurality of lifting units arranged side by side, and each lifting unit comprises a material supporting turning plate used for supporting finished pipes. A height adjusting driving cylinder for controlling the vertical height of the material supporting turnover plate and a supporting chain turnover plate turnover driving cylinder for controlling the material supporting turnover plate to turn over are arranged at the bottom of the material supporting turnover plate, the blanking mechanism is composed of a plurality of blanking tables which are perpendicular to the blanking direction and are arranged side by side, and a hanging belt is arranged in the blanking direction of the finished pipes. The lifting mechanism with the adjustable height is adopted for supporting the finished pipes cut by the pipe cutting machine, then the finished pipes slowly descend to the discharging table and finally roll down to the lifting belts in the material receiving bin, and the problems of impact and gouges in the whole recovery process of the finished pipes are solved; the series-connection modular design is adopted, feeding of pipes of various lengths can be adapted only by adjusting the number of the modules, and the whole machine is simple in structure and high in economical efficiency.

A boat stabilizer having an upper harness for attachment to a vessel, the upper harness having an assembly control system for controlling attached wing assemblies, each wing assembly having a wing attached to the assembly control system and a wing mount attached to the wing and the assembly control system. The boat stabilizer may be further comprised of a controllable parasail comprising a parasail canopy, a plurality of parasail cords attached the parasail canopy, a parasail mount attached to the upper harness and the parasail cords, a parasail control rudder attached to each parasail cords, and yaw and pitch controllers, both of which are attached to the parasail control rudder. The assembly control system is configured to work in conjunction with the controllable parasail to provide the desired balance of vertical lift and forward propulsion to the attached vessel, while also providing directional control to the attached vessel.

The invention belongs to the technical field of pipeline hoisting, and particularly relates to a pipeline construction device which comprises a mounting plate, a winding cylinder and a folding assembly. A mounting lug is fixedly connected to the mounting plate, and the winding cylinder is located on one side of the mounting plate and rotationally connected with the mounting plate; a lifting sling is wound on the winding cylinder; a pair of supporting corbels is hinged to the mounting plate, and a first driving mechanism for driving the pair of supporting corbels to open and close is arranged on the mounting plate; one of the supporting corbels is provided with a sling hook and a limiting shaft; the folding assembly comprises a left side driving rod and a right side driving rod; a clamping assembly is arranged on the left side driving rod, and a pair of limiting rollers is rotationally connected to the right side driving rod. The supporting corbels are automatically opened and closed to support the pipeline, so that a heavy lifting belt is prevented from being manually threaded at the bottom of the unlimited pipeline; retracting and releasing of the lifting sling and locking / releasing of the hook are both completed through mechanical driving, and a worker only needs to insert the fixing shaft into the clamping assembly on the ground and thoroughly breaks away from a high-risk area.

A pulley system for assisting in the performance of exercises includes a first and a second belt member each having an attachment ring member on a first end and a handle on an opposing end, where the attachment ring members are configured for attachment to a horizontal bar and the first and second belt members are configured each for having a portion of the belt member and the belt member over-hanging the horizontal pullup bar. The pulley system further includes an arm support member having at least two pulley elements each interfacing with respective intermediate sections of the first and second belt members which are threaded through the at least two pulley elements and where the pulley system is configured for supporting a user under their arms using the arm support member while the user simultaneously grabs the overhanging handles for enabling the user to enhance a leg lifting exercise.

To provide a slinging auxiliary tool capable of safely performing slinging work on a utility pole and preventing the eye of a sling belt from coming off the hanging ear of a pole-mounted transformer.SOLUTION: A slinging auxiliary tool 1A, an aid that prevents an eye 62 of a sling belt used to suspend an object from coming off its latching target, comprises a pair of operating parts 3, 4 rotatably connected via a pivot shaft 2, a pair of holding structures 5, 6 that open and close in conjunction with the opening and closing movements of the pair of operating parts 3, 4, forming a ring when closed and accommodating and holding the overlapping part of the eye 62 within the ring, and an opening restriction structure that restricts the opening movement of the pair of operating parts 3, 4. The holding structures 5, 6 each have a hook-shaped bent tip end, a latching part 7 that latches onto a side edge 62a of the eye 62, and a latching protrusion 8 that protrudes from the inside of the latching part 7 and presses against the eye 62 at the latching part 7.SELECTED DRAWING: Figure 3

The invention discloses an upper limb power assisting device and a power assisting control method. The upper limb power assisting device comprises a sensing system, a power module, a trunk module, an arm module, a sling system and a main control module. The sensing system comprises an inclinometer and an angle sensor, and the inclinometer is arranged on the trunk module; the angle sensor is arranged on the power module; the power module comprises a shoulder power module, and the shoulder power module comprises a shoulder power base and a shoulder power output disc rotationally connected with the shoulder power base; the trunk modules are arranged on the two sides of the human trunk and fixed to the human trunk. The front end of the arm module is in transmission connection with the sling system, and the sling system is used for assisting in lifting the palm or the weight of the human body. According to the power-assisted control method, the intention of raising or lowering the arm of the wearer is sensed through the sensing system, so that the control is more sensitive, the action is more stable, shaking is avoided, and the universality is good. The method is simple and easy to use, and conforms to natural action habits; the sensing system is light, thin, small, low in cost and small in influence on an existing mechanism of the system.

An apparatus for reducing wearer fatigue for use in a wearable safety harness system includes a dorsal chassis capable of engagement with one or more shoulder safety straps and one or more lower torso webbing straps, an attachment subassembly comprising of a D-ring, a self-retracting lifeline attachment point, lower torso webbing strap attachment point, and a force-reduction mechanism. The attachment subassembly is attached to the dorsal chassis via the force-reduction mechanism such that force-reduction mechanism absorbs vertical forces produced by the weight of a self-retracting lifeline. The force-reduction mechanism absorbs vertical forces produced by the lower torso webbing strap resulting from the attachment of tools or equipment to the lower torso webbing strap. The arrangement of the apparatus also promotes increased flexibility between the shoulder safety straps and the lower torso webbing straps torso safety strap, thereby reducing wearer fatigue.

The utility model relates to an adjustable wind power blade installation lifting appliance, and relates to the technical field of wind power equipment lifting, the adjustable wind power blade installation lifting appliance comprises a main frame, an end beam is horizontally arranged on the main frame, the end beam is detachably connected with the main frame through a detachable site, the flexible adjusting capacity is provided for the lifting appliance, and a mechanical arm is arranged on the lower portion of the end beam; a lifting belt and a positioning structure specially used for positioning and conveying a lifting ring of the lifting belt are arranged on the mechanical arm, and a connecting mechanism connected with the lifting ring is further arranged on the lower portion of the end beam in a lifting mode. One end of the sling lifting ring can ascend and descend to tighten the sling to adapt to blades of different sizes, the end beams are detachably connected to the main frame, the distances between the adjacent end beams are different by selecting different detachable sites, and the sling lifting ring can adapt to blades of different lengths.

The utility model belongs to the technical field of rehabilitation devices, and particularly relates to a lower limb non-load-bearing exercise rehabilitation device which comprises a base, a support is installed at the top of the base, a fixed bed board and a rotatable bed board are installed at the top of the support, a connecting frame is connected to the side face of the support, and a telescopic groove is formed in the connecting frame and connected with the telescopic frame in an inserted mode. A sliding groove is formed in the side face of the hanging bracket. A second lead screw is rotationally arranged on the inner side of the hanging bracket and is in threaded connection with a lead screw motor. The sliding groove is in sliding connection with a sliding frame. The lead screw motor and the sliding frame are fixed. A winding drum is installed on the inner side of the sliding frame, and a second motor is installed on the side face of the sliding frame. A hanging belt is wound on the outer side of the winding drum, the bottom of the hanging belt is connected with a leg supporting plate, one end of the leg supporting plate is rotationally connected with a sole pedal, a control monitoring device is installed on the side face of the support, and the device has the weight-free training function that the training action amplitude and strength can be accurately controlled.

A cover for soft armor has a mantle extending from front waist to rear waist, with a head / neck opening and formed of an outer fabric layer and an inner liner secured to the outer fabric layer at particular locations. An additional liner is positioned between the outer fabric layer and the inner liner and secured to the inner liner to produce a sling along with the inner liner, positioned to receive and support portions of the soft armor at front and back of the mantle. The sling is openable and closable at a bottom of the sling for insertion of soft armor portions. At front and back the inner liner is split along a vertical center line providing for opening left and right portions upwardly and outwardly, for convenient loading of the armor.

The invention discloses a hanging conversion device and method for adjusting the falling posture of an air-drop piece, the hanging conversion device comprises a parachute, a hanging belt winding device and the air-drop piece, the two ends of the air-drop piece in the length direction are provided with a front hanging point and a rear hanging point, and the two sides of the middle of the air-drop piece in the width direction are provided with a left hanging point and a right hanging point; the left lifting point and the right lifting point are connected with parachute connecting points of the parachute through side lifting belts, lifting belt winding devices are arranged on the front lifting point and the rear lifting point, and the lifting belt winding devices of the front lifting point and the rear lifting point are connected with the parachute connecting points of the parachute through front lifting belts and rear lifting belts respectively. The left and right hanging points and the side hanging belts are additionally arranged on the basis of front and rear point hanging conversion, when the air-drop piece is converted into the horizontal state from the vertical state, the gravity center position change in the air-drop piece conversion process can be kept small by fixing the release speed of the front hanging belt and enabling the side hanging belts to be kept in the straightened state all the time, and the stability of the air-drop piece is improved. The shaking degree of the air-drop piece in the falling posture changing process is reduced, the problem of hanging overload is effectively solved, operation is easy, and use is convenient.

To provide a hoist and an elevator capable of easily performing inspection work of a sheave and preventing parts from falling into a hoistway during the inspection work.SOLUTION: A hoist 4 comprises a sheave 22 around which the main rope is wound, a drive unit connected to the sheave 22 and rotating the sheave 22, a housing 21 that houses the drive unit, and a sheave cover 24 that covers at least a portion of the outer periphery of the sheave 22. The sheave cover 24 comprises fixed covers 32A, 32B that are fixed to the housing 21 and have openings that face the outer periphery of the sheave 22, and a movable cover 31 that is movably attached to the fixed covers 32A, 32B and closes the openings.SELECTED DRAWING: Figure 3

The invention belongs to the technical field of chemical nickel equipment, and particularly relates to a three-dimensional swinging chemical nickel device for semiconductor parts, which comprises an outer groove, an inner groove, a support, a driving mechanism, a lifting mechanism, a transverse moving mechanism, a longitudinal moving mechanism, a swinging frame and a workpiece suspension frame, and the driving mechanism comprises a driving motor, a driving eccentric wheel, an adjusting rod, a linkage rocker and a driving shaft. The lifting mechanism comprises a lifting belt clamping plate assembly, a lifting rod, a lifting guide assembly, a vertical driving frame and a riding wheel assembly. When the driving shaft rotates, the lifting rod drives the swing frame to move up and down. The transverse moving mechanism comprises a linkage eccentric wheel, a linkage driving lever and a transverse cam groove plate, and the linkage driving lever drives the swing frame to move left and right when ascending and descending. The longitudinal moving mechanism comprises a longitudinal cam groove plate, a V seat fixing plate, a longitudinal moving guide rail and a guide rail support, and the V seat fixing plate longitudinally moves relative to the guide rail support. According to the invention, three-dimensional swinging of the workpiece can be realized, and the chemical nickel plating quality of semiconductor parts is improved.

The invention relates to the technical field of spacecraft ground test equipment, in particular to a launching device for a spacecraft landing impact test based on push rod linkage, and is characterized in that one end of a sling is connected with a lower hanging ring, the lower hanging ring is arranged at the bottom of a shell, a driving mechanism is mounted in an upper cavity, and a releasing mechanism is mounted in a lower cavity; the output end of the driving mechanism penetrates through the partition plate to be in transmission connection with the releasing mechanism, the positioning disc is clamped to the bottom of the releasing mechanism, the spacecraft is connected to the bottom of the positioning disc, the lower hanging ring is hinged to the positioning disc, the upper hanging ring is installed on the top of the shell, and the other end of the hanging belt is connected with the upper hanging ring. The releasing operation is more convenient, it is ensured that the releasing device can be repeatedly used, meanwhile, the symmetrical structural design is adopted, the mass center is arranged in the center of the shell, and the unstable conditions such as overturning, shaking or rotating in the releasing process of the spacecraft are avoided.

The utility model provides a temporary damping device for a stay cable. The temporary vibration reduction device for the stay cable comprises a batten plug pad vibration reduction system and a cable end auxiliary cable vibration reduction system. The batten plug pad vibration reduction system comprises a batten, a stay cable sleeve and a protection part, the stay cable sleeve is arranged on the periphery of the stay cable in a sleeving mode, a cavity is formed between the inner wall face of the stay cable sleeve and the outer wall face of the stay cable, the batten is filled in the cavity, and the protection part is at least fixedly arranged at a pipe opening of the stay cable sleeve so that the batten can not be exposed in the air; the cable end auxiliary cable vibration reduction system comprises a flexible sling and a connecting piece, the first end of the flexible sling is wound and fixed to the stay cable, and the second end of the flexible sling is in bolted connection with a preformed hole of a bridge steel guardrail through the connecting piece. According to the temporary damping device for the stay cable, the adverse effect caused by wind vibration on the stay cable in the construction process can be reduced, the wind vibration loss of the stay cable is reduced, and the installation and construction efficiency of the stay cable is improved.