105results about How to "Avoid rigid connections" patented technology

The invention discloses a postoperation nursing bed and relates to a medical device. The postoperation nursing bed comprises a bed frame, a bed board and an adjusting mechanism, wherein the bed board is formed by hinging a first bed board to a second bed board; the adjusting mechanism comprises driving motors, a control part, an adjusting part, a first supporting part and a second supporting part, and the first supporting part and the second supporting part are symmetrically arranged along the center of a door board; the adjusting part comprises an adjusting shell body, a first bevel gear which is rotatably connected with the adjusting shell body, a second bevel gear and a middle bevel gear, wherein the first bevel gear and the second bevel gear are meshed with the middle bevel gear. The first supporting part and the second supporting part control free ends of the first bed board and the second bed board to go up and down respectively, the first supporting part and the second supporting part are driven by the first bevel gear and the second bevel gear respectively, through the control over the running resistance of the second bevel gear, the speed ratio of the first bevel gear to the second bevel gear can be changed, and the bed board can be presented with different states.

The invention belongs to the technical field of rock mechanical test equipment, and discloses a hollow cylindrical rock torsional shear apparatus for improving torque application accuracy. The apparatus comprises a framework, a lifting device, a base, a confining pressure barrel, an upper seat, a transmission shaft group, a transmission shaft bracket, a torque applying structure, a torque sensor, a coupling and a controller. The invention provides a torsional shear apparatus capable of ensuring the torque application accuracy and reliability.

The invention discloses an ultra-large floating body single module capable of achieving quick splicing and an assembling structure thereof. The ultra-large floating body single module comprises an upper platform, a middle barrel and a lower platform. The middle barrel is of a multi-layer barrel structure and is sequentially provided with a buoyancy layer, a ballast layer and a wave absorbing layerfrom inside to outside. The upper end and the lower end of the buoyancy layer are connected with the upper platform and the lower platform correspondingly to form a sealed buoyancy compartment. The upper end and the lower end of the ballast layer are connected with the upper platform and the lower platform correspondingly to form a sealed ballast compartment surrounding the buoyancy layer. The wave absorbing layer is made of a porous wave absorbing plate, and the upper end and the lower end of the wave absorbing layer are also connected with the upper platform and the lower platform correspondingly. Each side face of the wave absorbing layer is provided with the same number of quick connectors. Multiple floating body single modules can be quickly docked together through the respective quick connectors to form an ultra-large floating body. The ultra-large floating body single module and the assembling structure thereof are stable and reliable, and can adapt to complex environments on the sea.

The invention provides a polishing device for an automobile accessory. The polishing device comprises a worktable (2) which has two layers. The top of the upper layer of the worktable (2) is provided with a containing groove (4), a dustproof cover (10), a vertical rod (5) and a polishing wheel (11). A cross beam (6) is arranged on the top of the vertical rod (5), and an air cylinder (7) is arranged on the cross beam (6). A dust collecting bag (1) and an air blower (3) are arranged at the bottom of the upper layer of the worktable (2). The dust collecting bag (1) is directly connected with the air blower (3), and a rotating motor (13) is arranged on the lower layer of the worktable (2). The polishing device has the beneficial effects that a telescopic rod is connected with a workpiece through a sucker (9), existing rigid connection is avoided, and therefore the polishing wheel (11) has certain elasticity when making contact with the workpiece; a rotating shaft of a polishing motor is perpendicular to a polishing platform, the workpiece is fixed to the polishing platform, and polishing of the workpiece is facilitated; and chippings generated during polishing are discharged in time due to the design of the dustproof cover (10), pollution is prevented from being caused, and the polishing quality is also ensured.

The present invention belongs to the technical field of rock mechanics testing equipment, and discloses a rock hollow cylinder torsional shear apparatus which includes a frame, a lifting device, a bottom seat, a confining pressure barrel, an upper seat, a force transmission shaft, a force transmission shaft holder, a torque application structure and a controller. The present invention provides a torsional shear apparatus capable of avoiding mutual interference between axial force application and torque force application.

The invention relates to a suspension type large hanging beam. The hanging beam includes a main beam and suspension assemblies arranged on the main beam, the main beam is provided with suspension shafts, the upper surface of each of the suspension shafts is a circular arc surface, each of the suspension assemblies includes a semilunar ear plate, and the arc-shaped bottom surfaces of the ear plates are connected to the suspending shafts in a press fitting manner, and form revolute pairs together with the arc-shaped surfaces. The arc-shaped bottom surfaces of the ear plates are connected to the suspending shafts in a press fitting manner, and form the revolute pairs together with the arc-shaped surfaces, so the centering self-positioning of the installation of the suspension assemblies is conveniently realized, and the installation and the adjustment of the suspension assemblies are convenient; and the suspension assemblies can swing around the suspension shafts at a certain angle, so the pure rigid connection of the suspension shafts and the suspension assemblies in traditional technologies is avoided, the bearing condition of the hanging beam is greatly improved, and bearing change and buffer in the motion process are realized. The suspension type large hanging beam can be applied to overturn and hoist large workpieces.

The invention relates to the technical field of one-way valve stent, in particular to a bronchus one-way valve stent which is used for solving the problems that in the prior art, because of its limitation, a one-way valve stent is easy to deform and can not be restored in the working process, and the service life is short. The bronchus one-way valve stent provided by the invention comprises a stent body, a one-way conducting valve and a covering film, the stent body comprises a large-end stent section, a transition stent section and a small-end stent section which are sequentially connected from bottom to top, the large-end stent section and the small-end stent section are both cylindrical, and the transition stent section is conical. The large-end stent section and the small-end stent section are connected through the transition stent section, during use, the transition section can effectively prevent the whole stent body from forming rigid connection and difficult restoring the after deformation, so that the force on the the large-end stent section, the small-end stent section and the whole covering film can be effectively buffered and balanced, therefore, the performance and the service life of the one-way valve stent can be effectively improved.

The invention discloses a crushing and pressing device for plastic product recycling. The crushing and pressing device for plastic product recycling comprises a shell, the lower end of the shell is fixedly connected with a supporting mechanism, the side wall of the shell is fixedly connected with a feeding hopper, the lower end of the feeding hopper communicates with a feeding pipe, the lower endof the feeding pipe communicates with the side wall of the shell, the lower end of the shell communicates with a discharging pipe, a valve is installed on the discharging pipe, and a crushing mechanism is arranged at the lower end of the interior of the shell. According to the crushing and pressing device for plastic product recycling, the structure is stable, an air cylinder is started to drive an extrusion plate to extrude light plastic products downwards so that the light plastic products can be in full contact with two crushing rollers, then the crushing rollers can conveniently crush theplastic products, and the crushing efficiency is improved.

The invention discloses a substation optical cable and belongs to the technical field of optical cables. The substation optical cable comprises an optical cable outer sheath; the inner end of the optical cable outer sheath is connected with an elastic buffering layer; the inner end of the elastic buffering layer is connected with a first flame-retardant layer; the inner end of the first flame-retardant layer is connected with a water-resisting layer; the inner end of the water-resisting layer is connected with a second flame-retardant layer; the inner end of the second flame-retardant layer isconnected with an optical cable inner tube; a plurality of cable cores in an annular array are arranged in the optical cable inner tube; metal phosphated steel wire reinforcing cores are arranged atthe center of the optical cable inner tube; the metal phosphated steel wire reinforcing cores are arranged between the plurality of cable cores; the optical cable inner tube is filled with grease; andthe cable cores are filled with a plurality of optical fibers; the outer end of the optical cable outer sheath is fixedly connected with a plurality of uniformly-distributed fixing sleeves; and therefore, the tensile strength and waterproofness of the optical cable can be improved, a condition that the optical cable is fractured and is subject to water infiltration due to natural environment andother external force factors can be almost avoided, and therefore, the stability and safety of the work of the optic cable can be improved.

A shielding component, in particular a heat shield, has shield components (10, 12, 14) which are made flat, which lie at least partially on top of one another, and which are connected to one another at least partially along at least one common connecting line (16). Along the common connecting line (16), at least one shield component (14) encompassing another shield component (10, 12) in an overlap (18). Within the overlap (18), the shield components (10, 12, 14) are held at least partially by frictional engagement so as to be displaceable against one another relative to a compensation distance. A rigid connection of the shield components with their individual layers is avoided. Rather, depending on the thermal situation, they can mutually slide off one another.

The invention relates to the technical field of waterproof coating flattening devices, and discloses a waterproof coating laying device for building decoration. The waterproof coating laying device comprises a support plate, rolling wheels and a first rotating shaft; the top face of the support plate is provided with a self-adaptive waterproof coating supply mechanism, and the left side of the support plate is provided with a strike-off mechanism which is movably connected with the support plate through a suspension system. The support plate is pushed to drive the rolling wheels to roll on the ground to drive the first rotating shaft to rotate, the first rotating shaft drives a vertical shaft to rotate, the vertical shaft rotates to drive a circular plate to rotate, a first turning plate on the circular plate extrudes waterproof coating entering a first shell from a feeding pipe through a discharging pipe and paves the waterproof coating on the bottom face, and the faster the rolling wheels rotates, the faster the circular plate rotates; the faster the first turning plate rotates, the more the waterproof coating pushed in unit time is, automatic adjustment is carried out according to the walking speed of the support plate, the phenomena that the spreading speed of the waterproof coating is low due to the fact that the support plate walks too fast, the coating is laid unevenly, and later strike-off is affected are avoided, and the coating laying effect is improved.

The invention discloses gearbox simulation detection equipment which comprises a mainframe box, a synchronous motor, a lifting plate, a horizontal moving plate and a fixing frame, wherein a buffer block is arranged in the mainframe box and is connected with an output shaft of the mainframe box; an output shaft of the synchronous motor is connected with the buffer block, and the output shaft of the synchronous motor and an output shaft of the mainframe box are coaxially arranged; the lifting plate supports the mainframe box; the bottom of the lifting plate is connected with a plurality of lifting screws; the horizontal moving plate is provided with a plurality of vertical through holes which are movably sleeved with threaded sleeves, and each lifting screw is connected with one threaded sleeve; driven chain wheels are fixed to the side walls of the threaded sleeves, the plurality of driven chain wheels are connected in a wound mode through chains, and the chains are connected with driving chain wheels; a sliding block is arranged at the bottom of the horizontal moving plate; a supporting block with a threaded through hole is fixed to the bottom of the horizontal moving plate; and a sliding rail matched with the sliding block is arranged at the top of the fixing frame. The gearbox simulation detection equipment can be suitable for detecting gearboxes of various models, and the universality is improved.

The invention provides an automobile battery box mounting structure which comprises two groups of fixing main bodies and two groups of connecting assemblies, the two groups of connecting assemblies and the two groups of fixing main bodies are correspondingly arranged on two opposite sides of a battery box, the fixing main bodies and the connecting assemblies are assembled in a sliding manner, buffer mechanisms are arranged on the fixing main bodies, and each connecting assembly comprises a mounting plate. The mounting plate is fixed to the battery box through a connecting plate, the buffer mechanism comprises a conical groove and a buffer groove, a conical sliding block is arranged in the conical groove, gaps are reserved between the side walls of the conical sliding block in the vertical direction and the side walls of the conical groove, a connecting rod is fixed to the outer side of the conical sliding block, and a cover plate is connected to the outer side of the conical groove; through holes for the connecting rods to penetrate through are formed in the cover plate, elastic buffering pieces are arranged in the buffering grooves, the connecting rods are connected with sliding plates, and the mounting plates are slidably assembled with the sliding plates. According to the technical scheme provided by the invention, the mounting difficulty of the battery box is reduced, meanwhile, direct rigid connection between the battery box and a vehicle body is avoided, and the buffering protection effect on the battery box is improved.

The invention relates to the technical field of tea drying and discloses a tea drying device which comprises a drying device body, the body comprises a supporting plate, a first shell is fixedly connected to the supporting plate, a longitudinal stirring device is arranged in the first shell, the longitudinal stirring device comprises a second transverse plate, a transverse stirring device is arranged on the second transverse plate, and the transverse stirring device comprises a first transverse plate. A secondary drying device is arranged on the upper surface of the first transverse plate, a residue collecting device is further arranged on the upper surface of the first transverse plate, a primary water-removing device is further arranged on the upper surface of the supporting plate, and asixth gear is driven to rotate through rotation of a second motor. When gear teeth of the sixth gear mesh with the gear opening of the right side wall in a second gear belt, the rotation of the sixthgear drives a second sliding block on the second gear belt to slide in a first sliding groove, the second gear belt drives a second box body to move upwards, a second motor rotates continuously, thesecond box body of the tea drying device is driven by the longitudinal stirring device to reciprocate up and down, tea in the second box body are turned over, heating is more uniform, and the tea frying effect is better.

The invention discloses a direct-current water pump installation structure of a central gas water heater. A direct-current water pump is connected with the central gas water heater through a water pump supporting plate. The structure is characterized in that an ethylene propylene diene monomer rubber pad is arranged between the water pump supporting plate and the central gas water heater, the water inlet end of the direct-current water pump is connected with a water inlet pipe of the central gas water heater through a first hose, and the water outlet end of the direct-current water pump is connected with a heat exchanger of the central gas water heater through a second hose. According to the structure, rigid connection between the direct-current water pump and the central gas water heateris avoided, vibration of a direct-current water pump body is buffered by the ethylene propylene diene monomer rubber pad, vibration of a water inlet and a water outlet of the direct-current water pumpis buffered by the braided hoses, the portion between a bottom cover of the direct-current water pump and the water pump supporting plate is buffered by the ethylene propylene diene monomer rubber pad, and noise generated in the working process of the direct-current water pump is greatly reduced.

The invention discloses an electric driving bridge system based on a dual-clutch automatic transmission. The electric driving bridge system comprises a transmission shell, an intermediate shaft which is rotationally supported in the transmission shell, a driving motor which is arranged on one side in the transmission shell and comprises a driving motor output shaft, a first planet gear transmission mechanism which is connected to a driving motor shaft and is fixed to the middle portion in the transmission shell, an intermediate transmission disk which is rotationally arranged on the intermediate shaft in a sleeving manner, a first clutch which is connected with a planet carrier of the first planet gear transmission mechanism and is selectively connected with the intermediate transmission disk, a second clutch which is connected with the driving motor output shaft and is selectively connected with the intermediate transmission disk, and a differential mechanism which is connected with the intermediate transmission disk and comprises a first output shaft and a second output shaft, and the differential mechanism outputs the output power generated after speed changing through the first output shaft and the second output shaft. The invention further provides a control method of the electric driving bridge system based on the dual-clutch automatic transmission.

The invention relates to a tidal current generator, in particular to a double-rotor tidal current generator. According to the scheme, two energy collecting devices are arranged up and down and can greatly improve the energy collecting efficiency, and the utilization rate of tidal current energy is greatly increased. The double-rotor tidal current generator has the advantages that the structure design is simple, a yaw mechanism is not needed, and the generator is not affected by water flow directions; vertical blades are adopted, and compared with a horizontal shaft type water turbine, the machining difficulty of blades is lowered, and the development cost can be lowered; the energy obtaining coefficient and the tidal current energy utilization rate can be effectively increased.

The invention discloses a rotor assembly and a motor, and the rotor assembly comprises a rotor iron core, a permanent magnet, a rotating shaft, a first end vibration damping piece and a first transmission piece, wherein the rotor iron core is provided with a magnet groove and a rotating shaft hole; the permanent magnets are arranged in the magnet grooves; the rotating shaft is arranged in the rotating shaft hole, a gap is formed between the rotating shaft and the rotor core, and the first end and the second end of the rotating shaft extend out of the rotating shaft hole; the first end part vibration damping piece is arranged on the first end surface of the rotor iron core and is connected with the rotor iron core; the transmission piece is arranged in the first end vibration damping piece,the first transmission piece is matched with the rotating shaft, and the rotor iron core drives the rotating shaft at least through the first end vibration damping piece and the first transmission piece in sequence. According to the rotor assembly provided by the embodiment of the invention, the material amount of the vibration reduction part is large, the noise reduction and vibration reductioneffects are good, and the reliability is high.

The invention discloses an oil-cylinder applied force load-balancing buffer mechanism, which is an auxiliary device for a material powder grinding device. The oil-cylinder applied force load-balancing buffer mechanism comprises a load balancing plate and an antifriction plate, wherein the load balancing plate is parallelly arranged between a movable roll bearing pedestal and an oil cylinder; and an elastic supporting plate is arranged between the load balancing plate and the bearing pedestal, the load balancing plate is movably connected with the bearing pedestal, and a certain gap is always kept between the load balancing plate and the bearing pedestal. By using the mechanism disclosed by the invention, a purpose that the force applied to the movable roll bearing pedestal is uniform and optimized can be achieved, the damage to a main bearing, caused since the force applied to the bearing pedestal is not uniform and the impact force is large is reduced, the actual service life of the main bearing is greatly improved, and the vibration and noises in the running process of the device are reduced, thereby ensuring that a roller press (high pressure roller mill) is in the best running state, so that the running performance of the roller press is guaranteed reliably; and the maintenance costs and the like of the device are also reduced.