43results about How to "With braking function" patented technology

The invention discloses an office chair with a rotatable chair plate, which consists of the chair plate, a backboard and a leg stand, wherein the bottom of the chair plate is provided with a base plate; an atmospheric pressure rod is arranged between the base plate and the leg stand; a chair height adjustment rod is arranged on one side of the base plate through a rotating shaft; the other end of the chair height adjustment rod is in compression contact with a telescopic link; the base plate is provided with a pitching adjustment device consisting of a threaded rod arranged on the other side of the base plate; the threaded rod is matched with the base plate through screw thread; the front end of the threaded rod is in contact with the lower side of the chair plate; and the base plate is provided with a pitching adjustment lock of which the other end runs through the rear end of the threaded rod perpendicularly to the axis of the threaded rod. In the office chair, one end of the chair height adjustment rod is connected with the base plate through the rotating shaft, so a person at work can conveniently rotate the office chair leftwards and rightwards and does not need to move the chair when arising.

The invention discloses an electromagnetic braking translation-type rolling plate clamp comprising a hoisting device, a driving device, a braking device, a supporting cross beam, a left clamp arm, a right clamp arm, a clamp arm protection device and an electrical system, wherein the driving device comprises a three-in-one speed reducer, a torque limiter, a small spiral bevel gear, a big spiral bevel gear, a rack, a gear, an aligning roller bearing and a gear shaft; and the electromagnetic braking device comprises an electromagnet, a ratchet wheel and a pawl. When in brake, the other end of the pawl is supported on the root of the ratchet wheel; the middle of the pawl is hinged on the rear side wall of the supporting cross beam; a detection device comprises a position switch arranged on the cross beam and a centering switch and an edge detection switch which are arranged on the clamp arms. In the invention, the driving device has stable running; the electromagnetic braking is accurate and reliable; and a sliding plate is well protected and can be easily and accurately reset. The clamp has the advantages of compact structure, light dead weight, high safety factor, high strength, comprehensive protection measure and high working efficiency, can realize automatic and semi-automatic running and relieve the labor intensity of workers.

The invention discloses a rotation open brake circuit of tower crane, with urgent-brake function in circuit breaking condition. The invention is based on the rotation open brake power supply circuit that formed by a power circuit (1), a brake coil circuit (2) and a open contact point (3) of brake contactor; the improved circuit-breaking urgent circuit (4) is formed by a charge circuit (5), a discharge circuit (6) and a accumulator (7); wherein, the input of charge circuit (5) is connected to the anode of power circuit (1) and the connecting point (8) of open contact point (3) of brake contactor; the output of charge circuit (5) is connected to the anode of accumulator (7) and the input of discharge circuit (6); the cathode of accumulator (7) is connected to the anode of power circuit (1) and one connecting point (9) of brake coil circuit (2); the output of discharge circuit (6) is connected to another end of open contact point (3) of brake contactor and the connecting point (10) at another end of brake coil circuit (2). The tower crane can keep rotation brake function when in circuit breaking condition.

A horizontal novel centrifugal concentrator comprises a frame (8), an outer cover (1), a rotating drum (2), a variable frequency reducing motor (4) connected with the rotating shaft of the rotating drum through a coupler (3), a flushing system (5) arranged in the outer cover and connected with an external water supply system, an ore distributor system (6) below the outer cover, an ore receiving bucket (7) below the outer cover, a feeding system (9) arranged outside the outer cover and communicated with the rotating drum, wherein the rotating drum comprises the rotating shaft, a horn-shaped rotating disc and a circular truncated cone-shaped rotary drum; the rotating shaft is sleeved with the rotating disc; the rotating disc is sleeved with the rotary drum; the large end surface of the rotary drum is connected with the outer edge of the rotating disc; the tilt angle of the opening in the internal face of the rotary drum is 2-6 degrees; the flushing system comprises a water inlet pipe with a pneumatic ball valve and flushing nozzles in the rotary drum; the ore distributor system comprises a cylinder, an oscillating shaft, a connecting arm and an ore distribution hopper; one end of the connecting arm is connected with the push rod of the cylinder and the other end of the connecting arm is connected with the oscillating shaft; a lifting arm at the top of the ore distribution hopper is connected with the oscillating shaft; the feeding system comprises an ore distribution box and at least two feeding nozzles; a pneumatic knife gate valve is arranged at the ore inlet of the ore distribution box; the feeding nozzles are mounted at the tail ends of feeding pipes of the ore distribution box and face to the internal face of the rotary drum. The horizontal type novel centrifugal concentrator has a simple structure and a good concentration effect, and is easy to control and maintain.

The invention discloses a multifunctional pediatric bed. The pediatric bed comprises two support frames, a rocker box is fixedly arranged between the opposite sides of the two supporting frames in a connection mode, annular sliding rails are fixedly connected to the opposite sides of the two supporting frames, the surface of each annular sliding rail is slidably connected to a sliding supporting rod, one end of each sliding supporting rod is fixedly connected to a shaking table supporting plate, a first fixing rod and a second fixing rod are fixedly connected to one side of each shaking tablesupporting plate in sequence from top to bottom, an air pipe box is fixedly arranged between the opposite sides of the two shaking table supporting plates in a connection mode, a heating box is fixedly connected to the bottom of the air pipe box, a fixing frame is fixedly connected to the bottom of the inner wall of the rocker box, and a fixing shaft penetrates through the surface of the fixing frame. The invention relates to the technical field of pediatrics. The multifunctional pediatric bed has an automatic shaking function, is very convenient to use, saves a large amount of time, and reduces the working intensity of medical staff.

The invention provides a suspension spinning mechanism and a microgravity rollover state simulation system, and relates to the technical field of on-orbit service and maintenance. The suspension spinning mechanism includes a spinning device, a rigid-flexible restraint conversion device and an angle and eccentricity adjusting device, wherein the spinning device is suitable for enabling a suspensiontarget to spin around a spin axis; the rigid-flexible restraint conversion device is suitable for the situation that the suspension mechanism and the suspension target are switched between rigid restraint and flexible restraint; and the angle and eccentricity adjusting device is suitable for adjusting the deflection angle and the eccentricity position of the suspension target. According to the suspension spinning mechanism, the spinning of the suspension target around the spin axis can be realized, the swing of the suspension target spin axis can be realized, and the rigid and flexible restraint states of the suspension target can be arbitrarily switched, thus the ground simulation of a possible attitude rollover state of an on-orbit fault satellite is realized.

The invention discloses a leg explosive force auxiliary training appliance, which comprises a base, wherein the base comprises a base body; a plurality of cover plate assembly installing holes are symmetrically formed in the side walls of two sides of the base body; a cover plate is arranged on the side wall of the upper side of the base body; the cover plate comprises a cover plate body; base connecting plates are symmetrically arranged at the side walls of two sides of the cover plate body; the cover plate assembly installing holes are fastened and connected with a base connecting plate through screw bolts; a force transmission belt opening is formed in the side wall of the upper side of the cover plate body; two mutually parallel side plates are symmetrically arranged on the side wallsof the two sides of the cover plate body; and a first avoiding hole and a second avoiding hole are formed in the side walls of the each of the two side plates. The leg explosive force auxiliary training appliance provided by the invention has the advantages that a sportsman can realize the reinforcement on the leg core power in a short time; in addition, the braking on the force transmission beltcan be realized; and the safety of the device and the training efficiency are improved.

The invention discloses a volute energy storage pushing trolley with a braking device. Rollers are arranged below a shell; a volute plate is arranged in the shell; a volute spring is arranged in the volute plate; a traction wire is wound on the periphery of the volute plate; the volute plate can be driven by elasticity of the volute spring to rotate; the side face of the volute plate is fixedly connected with a braking ratchet wheel; the braking ratchet wheel and the volute plate are coaxially arranged; the shell is also provided with a brake button device; one end of the brake button device is positioned in the shell, and the other end of the brake button device is positioned outside the shell; the brake button device in the shell is in contact with a brake disc; a return spring is sleeved on the brake disc; the other end of the return spring is fixedly connected to the shell; when the brake button device is pressed down, the brake disc is clamped on the teeth of the brake ratchet wheel; and when the brake button device is reset, the brake disc is separated from the teeth of the brake ratchet wheel. The volute energy storage pushing trolley with the braking device has the advantages of simple structure, convenience in manufacturing, low failure rate and suitability for large-scale application.

The invention discloses a small lever type energy-saving ship lift and an operation method thereof. The small lever type energy-saving ship lift is applicable to ship navigation of small water retaining structures. The ship lift comprises an upstream approach channel, an upper lock head, a ship chamber section, a lower lock head and a downstream approach channel which are sequentially intercommunicated with one another from upstream to downstream. The ship lift is characterized in that the ship chamber section comprises a lever, a transmission shaft and two cylindrical type ship bearing chambers, wherein the transmission shaft is of a driving braking structure, and two ends of the transmission shaft are connected to a dam body or a firm foundation rock; the transmission shaft is rigidly connected to the middle part of the lever; the two cylindrical ship bearing chambers are correspondingly connected to two ends of the lever. The ship lift is applicable to one-way navigation or two-waynavigation of a ship, so that the ship navigation efficiency is improved; moreover, the gravitational potential energy of ships at the upstream and the downstream can be converted with each other based on the lever principle, so that the transferring energy consumption is greatly reduced.

The invention discloses a lifting straddle-type single-rail device assembling and disassembling trolley. The lifting straddle-type single-rail device assembling and disassembling trolley comprises a trolley body, a lifting platform, a platform moving device, a platform locking device and a plurality of trolley body traveling wheels. The trolley body traveling wheels are arranged under the trolleybody and provided with brake devices. The lifting platform is arranged on the trolley body. The platform moving device is arranged between the trolley body and the lifting platform. The platform locking device is arranged between the trolley body and the lifting platform. By adoption of the lifting straddle-type single-rail device assembling and disassembling trolley, the process requirement for maintenance of full-automatic-drive straddle-type single-rail vehicle devices can be met according to the characteristics of straddle-type single rails and the maintenance requirements, inconvenience and difficulties during maintenance of the straddle-type single-rail vehicle device, and the maintenance efficiency and safety of the devices are improved.

The invention discloses a single-phase miniature electric travelling crane, comprising a driving wheel, a driven wheel and a motor speed reducer. The driving wheel and the driven wheel are respectively arranged on a mounting board of the driving wheel and a mounting board of the driven wheel; the driving wheel is in transmission connection with the motor speed reducer; the motor speed reducer is fixed on the mounting board of the driving wheel; the driving wheel and the driven wheel are respectively in rolling fit with the left and right sides of the upper edge surface of a guide rail; a connecting piece is arranged between two mounting boards; the electric travelling crane is provided with a balance wheel; the balance wheel is in rolling fit with the lower edge surface of the side of the guide rail where the driven wheel is positioned; a supporting shaft of the balance wheel is fixed on the mounting board of the driven wheel; and a single-phase capacitance-operating bypassed magnetic braking type asynchronous motor is selected as the motor of the electric travelling crane, and has braking function. As the lower edge surface of the side of the guide rail where the driven wheel is positioned is provided with the balance wheel, after the guide rail applies a downward acting force to the balance wheel, the acting force acts on the mounting board of the driven wheel, and is just balanced with the dead weight of the motor speed reducer on the mounting board of the driving wheel, thus a balancing iron block does not need to be arranged on one side of the mounting board of the driven wheel in order to balance the dead weight of the motor speed reducer. As the single-phase capacitance-operating bypassed magnetic braking type asynchronous motor is selected and has the braking function, the electric travelling crane is steady, safe and reliable in operation.

The invention discloses an inclined shaft common rail clamping rail man car. The inclined shaft common rail clamping rail man car comprises a head car and a tail car, each of the head car and the tailcar comprises a front steering device, a rear steering device and caliper type hydraulic brakes, the steering support frames of the front steering device and the rear steering device are provided with walking wheel supports with frame structures, brake seats fixed on the left side and the right side of the walking wheel supports correspondingly and clamping rail supports correspondingly fixed onthe front side and the rear side of the brake seats; the four clamping rail supports are correspondingly connected with a group of clamping rail devices, and steering assemblies are correspondingly fixed on the steering support frames of the front steering device and the rear steering device; and the four caliper type hydraulic brakes are correspondingly fixed in the four brake seats, and the control system controls the braking linkage. According to the inclined shaft common rail clamping rail man car, the front steering device and the rear steering device are modularized, the walking, the multi-direction steering, the caliper type braking and the floating type clamping rail are integrated, the structure is compact, the safety performance is reliable, and convenience is provided for vehicle assembly. The head car and the tail car are both man cars and have the braking function, a man car can be connected between the head car and the tail car, and a special brake car does not need to bespecially arranged.

The invention discloses a rail trailer running part which is mounted below a trailer body and comprises an axle, wherein axle box bodies are arranged at the two ends of the axle; an electromagnetic brake is mounted on the outer side of one axle box body; buffer devices are arranged at the upper ends of the two axle box bodies respectively and comprise plate springs; the lower ends of the plate springs are connected with the upper surfaces of the axle box bodies; one end of each plate spring is articulated with a first mounting seat; the other end of each plate spring is articulated with a transition mounting seat; second mounting seats are articulated above the transition mounting seats; and the first mounting seats and the second mounting seats are connected with the trailer bodies. The rail trailer running part is simple structure, light in weight and convenient to assemble and overhaul. The electromagnetic brake allows the trailer running part to have a braking function; a structureof the trailer running part is simplified; the trailer running part is more applicable to a light-weight design of a light rail trailer; and the production and manufacturing cost is lowered. The buffer devices transmit vertical, traction and braking loads between the trailer body and the running part and mitigate an impact load generated by an uneven pavement.

The invention provides a vertical type direct-drive permanent magnet synchronous motor. The motor comprises a stator and a rotor, wherein the stator comprises a winding stator core and a case which sleeves the winding stator core; the rotor comprises a rotor core and a rotary shaft penetrating through the rotor core; an upper end cover and a lower end cover are arranged at upper and lower ends ofthe case; the rotary shaft sequentially penetrates through the upper end cover and the lower end cover; a brake device is arranged at the upper end of the rotary shaft and has assisted direction determining and braking functions. The brake device with the simple structure is additionally added and has the assisted direction determining and braking functions, the speed regulating range is large, speed regulation is fast, and operation requirements under complicated geological conditions can be met.

The invention relates to the technical field of ankle protectors, in particular to a multifunctional waterproof and breathable ankle orthosis. The multifunctional waterproof and breathable ankle orthosis comprises a body component and a movable cover component. The body component comprises a sole (1), a framework (2) and an inner mesh (3), the framework (2) is fixedly mounted to the sole (1), the inner mesh (3) is laid on the framework (2), two sides of the sole (1) are provided with clamping grooves (1-1) used for assembly of the movable cover component, and the framework (2) is provided with a slide groove (2-1) used for embedding of the movable cover component. The movable cover component comprises an elastic metal plastic layer cover (4), an outer mesh (8) and a water-proof hook-and-loop fastener (5), and the elastic metal plastic layer cover (4) is provided with a group of vent holes (4-1). The movable cover component has special properties of water proofing, high ductility and malleability, friction resistance, moisture preservation, heat insulation and the like. The body component has special properties of excellent heat insulation performance, high efficiency in heat preservation, light weight, thinness, softness, corrosion resistance, abrasion resistance, portability and the like.

The invention relates to the field of brakes for rail transit, in particular to a control mechanism and a brake device. The control mechanism is characterized by comprising a three-way pipeline and a first connector of an air source; the three-way pipeline is in a three-way shape formed by a first pipeline, a second pipeline and a third pipeline, the first pipeline and the second pipeline are respectively connected with one of valve cavities of a pair of control valves, and the control end of any control valve is at least respectively controlled by the same controller; through the control mechanism composed of the controller, the two control valves and the three-way pipeline, on one hand, compressed air can be injected into the braking mechanism, on the other hand, the compressed air in the braking mechanism can be emptied, and the control mechanism has the braking function of the control mechanism in the prior art and also has the anti-skid function in the prior art.

The invention proposes a tape measure capable of changing the tape belt direction, comprising a tape measure housing and a tape measure component arranged in the tape measure housing. The tape measure component comprises a tape measure core, a tape measure belt and a tape measure hook. The outlet of the tape measure housing is provided with a rotation component which can rotate the tape measure belt from a horizontal plane to a vertical plane and actuates the tape measure belt after the rotation. The arrangement of the rotation component means that through the rotation component, the direction of the tape measure belt can be changed, so as to resolve the problem that a flat and round tape measure housing cannot be placed flatly on a working plane when the tape measure belt is drawn out for measuring. It is possible to place the flat and round tape measure housing on the working plane to easily observe the readings on the surface of the tape measure belt. In addition, the rotation component also has an actuating function. When the direction of the tape measure belt changes, the tape measure belt can be locked, making the arrangement of an additional actuating block and a button unnecessary.

The invention provides a pair of self-running shoes. The self-running shoes are characterized in that the front end of a speed increasing box is provided with a main shaft; two ends of the main shaft are respectively connected with the front end of one actuating arm; at least two actuating arm connecting rods are connected between the two actuating arms; and the back ends of the actuating arms are hinged with the middle of pedal plates by pedal plate hinging shafts; two sides below the front part and the back part of the speed increasing box are respectively provided with a pair of front wheels and a pair of driving wheels; driving gears and driven gears are respectively arranged on the main shafts in the speed increasing box and driving wheel shafts provided with the driving wheels; and middle gear groups are arranged between the driving gears and the driven gears; overrun clutches are arranged on the driving gears and any gears of the middle gear groups or the driven gears; and resetting springing devices are arranged between the actuating arms and the speed increasing box. The self-running shoes have the advantages that the gravity which is alternately applied by two feet is taken as a forward power, so that the quick forwarding is realized. Thus, the self-running shoes are very labor-saving, convenient to use, suitable for the use of most people, and wide in applicable scope.

The invention relates to a conical rotor DC permanent magnet braking motor, which includes a casing, a main shaft, a stator core, a rotor core and a brake. Swimmingly supported on the left and right end covers, a spring thrust device is provided between the rotor core and the left end cover, the brake is a friction brake, including matching dynamic brake parts and customized brake parts, and the dynamic brake parts are fixed on the left end. On the main shaft outside the cover, the custom stopper is fixedly connected with the left end cover, the main shaft speed is 200r / min-900r / min, and the braking torque is 50N / m-2000N / m. The invention enables the DC permanent magnet motor to have a braking function, and when it is used in occasions such as driving a crane reel, the structure of the whole machine can be significantly simplified, the overall volume can be reduced, and the manufacturing cost and operating cost can be reduced.

The invention discloses a rotating system for a multi-crane integrated operation platform. The rotating system is arranged between an upper platform and a lower supporting system and is used for realizing the operation that the upper platform does rotating motion around the lower supporting system. The rotating system comprises a rotating mechanism and a power mechanism, wherein the rotating mechanism comprises a moving coil structure, a fixed coil structure which is rotationally arranged in the moving ring structure and a gear wheel arranged on a fixed ring structure or the moving ring structure; the top of the moving ring structure is fixedly arranged at the bottom of the upper platform; the bottom of the fixed ring structure is fixedly arranged at the top of the lower supporting system; the power mechanism comprises a motor and a pinion arranged on an output shaft of the motor; and the pinion is meshed with the gear wheel. According to the rotating system disclosed by the invention, the problems of a rotating function, power and motion control of the platform can be solved.

The invention relates to the field of rail transit, and particularly discloses a wet-type braking system of an urban rail vehicle. The wet-type braking system comprises a rail main body and a brake fixed to the bottom of a rail vehicle, wherein the brake comprises an outer shell and a brake assembly, a groove is formed in the rail main body, a bearing groove is formed in the outer shell, a rollingbearing is fixedly connected in the bearing groove, the outer shell is rotationally connected with a rolling wheel, the rolling wheel is fixedly connected with a connecting shaft, the top of the connecting shaft is fixedly connected with a supporting shaft, a spline shaft is fixedly connected to the top of the supporting shaft, the rolling wheel is in transmission connection with a friction cylinder, a spline hole is formed in the friction cylinder, the friction cylinder is fixedly connected with a friction disc, the brake assembly comprises a connecting frame and a friction semicircular cylinder, the connecting frame is fixedly connected with a semicircular ring, the semicircular ring is provided with an annular groove, the friction semicircular cylinder is fixedly connected with an annular boss, and the friction semicircular cylinder is fixedly connected with a friction semicircular sheet. The wet-type braking system of the urban rail vehicle has a function of braking the rail vehicle running on the rail main body through friction force.

The invention discloses a multifunctional brake-by-wire energy recovery auxiliary system and a control method thereof, comprising: an accelerator pedal, an accelerator pedal pressure sensor, a vehicle speed sensor, a brake pedal, a brake pedal pressure sensor, and an electronic hydraulic auxiliary braking system Assembly, plunger pump clutch device and main controller; the system of the present invention has the advantages of compact structure and high space utilization rate. It has the function of auxiliary braking, and can also perform energy recovery during auxiliary braking, which is safe and economical, and can reduce the quality of the vehicle and improve the use space of the vehicle.

The invention discloses a seasickness relieving device which comprises a cabin body and a spatial position maintaining mechanism, wherein the cabin body is spherical; the cabin body is sleeved with an inner hoop; the inner hoop is sleeved with an outer hoop; the cabin body is connected with the inner hoop, the inner hoop is connected with the outer hoop, and the outer hoop is connected with an installation space through a bearing, so that the whole seasickness relieving device is provided with a vertically rotating shaft and two horizontally rotating shafts; the installation space rotates relative to the inner hoop by the aid of the vertically rotating shaft; and the outer hoop rotates relative to the inner hoop by the aid of one horizontally rotating shaft, and the inner hoop rotates relative to the cabin body by the aid of the other horizontally rotating shaft, and the cabin body is kept stable. The seasickness relieving device has the advantages as follows: the spatial position of the system is kept to be constant by the aid of the spatial position, spatial position change of the cabinet body mounted in the system with the shaking of a ship body can be prevented, and stimulation of ship shaking to ears is reduced, so that the seasickness possibility is reduced.

The invention discloses a double-acting double-braking rescue apparatus for a high-rise building, relating to the filed of rescue apparatuses for high-rise buildings. The invention solves the problems that most of traditional rescue devices do not have both a self-rescue function and a function of rescuing other people and have the defects of complicated structure, poor safety and the like. The double-acting double-braking rescue apparatus for the high-rise building comprises a support frame and a steel wire rope, wherein the support frame is provided with a fixed pulley. The double-acting double-braking rescue apparatus is equipped with two lifters, namely a lifter I and a lifter II, wherein the lifter I is fixedly connected with the support frame through a bolt, and the lifter II is connected with the lifter I by virtue of the steel wire rope which passes through the fixed pulley on the support frame. The double-acting double-braking rescue apparatus for the high-rise building has the advantages of simple structure and high safety and can be used for self rescue as well as can be used for rescuing other people.

The invention provides an electromagnetic valve assembly control device and method, and relates to the technical field of electromagnetic valve assembly control. An MCU is electrically connected with a first driving module, a safety module and a second driving module, the safety module is electrically connected with the first driving module, the electromagnetic valve assembly is electrically connected with the first driving module and the second driving module, the electromagnetic valve assembly is used for being connected with a brake oil way, and the second driving module is used for being turned on or off according to a first driving signal of the MCU so as to control the opening and closing state of the electromagnetic valve assembly. The safety module is used for controlling the first driving module to be in the turned-off state when the MCU breaks down, the safety module is further used for generating a control signal according to a second driving signal of the MCU when the MCU works normally, and the first driving module is used for being turned on or turned off according to a control signal and a third driving signal of the MCU and and supplies power power to the electromagnetic valve assembly when the module is turned on. The device has the advantages that when the MCU breaks down, it can be guaranteed that the first driving module is turned off, and safety is improved.

The invention relates to the technical field of casters, in particular to a universal caster, including a height adjustment braking module, an anti-collision module, a rolling module, a power storage module, and a microcontroller. The top of the universal caster is provided with a support , the support is in the shape of a boss; a shell is provided under the support of the universal caster, and the shell is in the shape of a hollow boss; the height-adjusting brake module is located under the support, and the height-adjusting brake module is used to adjust the universal The height of the caster, and slow down the speed of the universal caster and prevent rolling; the anti-collision module is located inside the housing, and the anti-collision module is used to prevent the universal caster from colliding with other objects; the rolling module is located under the support shaft, rolling The module is used for the rolling of the universal caster; the power storage module is located under the support shaft, and the power storage module is used for the electric energy of the universal caster; the invention can better adapt to the height of the universal caster in different applicable occasions, making the braking more convenient , the anti-collision process is automated, and saves power during use.

The invention discloses a medical suspension bridge. The medical suspension bridge comprises a slide carriage and a suspension bridge cross beam, wherein the slide carriage can slide along a sliding rail of the suspension bridge cross beam; a brake mechanism is arranged on one side of the slide carriage; and the brake mechanism can respond to the operation of an operator to be selectively in contact with the lower surface of the suspension bridge cross beam. In the using process of the medical suspension bridge, automatic drifting of equipment caused by external factors can be avoided after the equipment stops. The medical suspension bridge has the advantages of convenience for assembling and disassembling and low cost. The invention also discloses the slide carriage which can slide along the suspension bridge cross beam. The brake mechanism is arranged on one side of the slide carriage. The brake mechanism can respond to the operation of the operator to be selectively in contact with the lower surface of the suspension bridge cross beam and has a brake function.

The application provides a solenoid valve assembly control device and method, which relate to the technical field of solenoid valve assembly control. The MCU is electrically connected to the first driving module, the safety module and the second driving module respectively, the safety module is electrically connected to the first driving module, and the solenoid valve assembly is electrically connected to the first driving module and the second driving module respectively, wherein the solenoid valve assembly It is used to connect with the brake oil circuit. The second drive module is used to turn on or off according to the first drive signal of the MCU to control the opening and closing state of the solenoid valve assembly. The safety module is used to control the first drive when the MCU fails. The driving module is in the off state, and the safety module is also used to generate a control signal according to the second driving signal of the MCU when the MCU is working normally, and the first driving module is used to turn on or off the third driving signal of the MCU according to the control signal , and powers the solenoid valve assembly when turned on. The present application has the advantage of being able to ensure that the first driving module is turned off when the MCU fails, thereby improving safety.

The invention provides a manual and automatic integrated spinup device and a microgravity roll state simulation system and relates to the technical field of on-orbit service and maintenance. The manual and automatic integrated spinup device is suitable for enabling a suspension target to spin around a spinning axis. The manual and automatic integrated spinup device comprises a manual spinup component and / or a spinup motor, a spinup rotating part and a friction piece, wherein the manual spinup component and / or the spinup motor is used for providing a spinup driving force; the spinup rotating part is suitable for converting a torque into rotating motion around the axis under the driving of a spinup driving force; the friction piece is indirectly or directly connected with the spinup rotatingpart; and the friction piece is suitable for fitting a driven part and driving the driven part to coaxially rotate with the friction piece. The manual and automatic integrated spinup device simultaneously has a manual driving mode and a motor driving mode, a clutch is configured, the two driving modes do not interfere with each other, and after being assembled at one time, the manual and automatic integrated spinup device can be switched between manual driving and motor driving at wills without repeatedly changing hardware and without being repeatedly debugged.