91results about How to "With damping function" patented technology

The present invention provides a zoom lens system having a vibration reduction function, suitable for a compact optical device using a solid-state imaging device. The system includes, in order from an object, a first lens group having positive power and a bending member for bending the optical path by about 90 DEG , a second lens group having negative power, a third lens group having positive power, and a fourth lens group having positive power. Upon zooming from a wide-angle end state to a telephoto end state, the first and third lens groups are fixed with respect to an image plane, the second lens group is moved to the image, and the fourth lens group is moved at first to the object and then to the image plane. An image blur on the image plane caused by a camera shake is corrected by moving the third lens group perpendicularly to the optical axis.

A lifting trammer is characterized in that the invention comprises a base mechanism and an upper supporter mechanism, as well as a plurality of lifting locking mechanisms that is connected with the base mechanism and the upper supporter mechanism and a plurality of workpiece lifting locking locating mechanisms arranged on the upper supporter mechanism. The lifting trammer provided by the invention has the advantages of adjustable lifting height, firmness, large carrying ability, no loosening, no shaking and no librating in working time, convenient workpiece assembly and disassembly and self-lock function. A guide rail is arranged on the trammer so as to be convenient for the transportation of the workpiece and simultaneously lead the workpiece to carry out linear motion according to a regulated direction. The trammer is also provided with a locating device and can load the workpieces with different shapes and dimensions.

The invention relates to a novel prefabricated plate type damping track structure for rail traffic. The novel prefabricated plate type damping track structure consists of steel rails, fasteners, prefabricated plates, an elastic cushion, sealing sleeves, a vertical connecting device, a filling layer and the like, wherein the elastic cushion and the prefabricated plates can be integrally compounded in a plant; holes which penetrate through track plates in the thickness direction can be reserved in the track plates to fill the filling layer and observe the filling condition; pre-formed holes allowing supporting legs to be mounted and a hole allowing a measuring positioning sign to be mounted are formed in the track plates; a centering sign for paving positioning, an embedded component for the compound connection of the elastic cushion, hoisting nails for hoisting, an embedded component for longitudinal connection of the track plates, an embedded component for mounting contacting rails and the like can be reserved in the track plates. According to the novel prefabricated plate type damping track structure disclosed by the invention, the problems of quick and high-accuracy construction and subsequent replacement are solved, and the novel prefabricated plate type damping track structure has the characteristics of being simple in construction operation procedure, high in construction speed, high in accuracy, good in track ride smoothness, low in labor intensity and the like, and conforms to the current rail traffic requirements of being environmentally-friendly, high in efficiency and low in disease, so that the problems of vibration caused by the operation of city rail traffic vehicles and secondary structure noise can be effectively reduced.

The invention relates to a precast slab type vibration damping rail structural system and a matched construction method. The rail structural system consists of steel rails, fasteners, precast slabs, an elastic cushion layer, a sealing sleeve, a longitudinal connecting device, a filling layer and the like, wherein the elastic cushion layer and the precast slabs can be compounded as a whole in a plant. According to the engineering needs, a track board can be reserved with 1-3 holes (for infusing the filling layer and observing an infusing state) which penetrate through the track board in a thickness direction, pre-formed holes for mounting supporting legs, a hole for mounting a measuring and positioning mark, an aligning mark for laying and positioning, a pre-embedded part for composite connecting of the elastic cushion layer, lifting pins for lifting, a pre-embedded part for longitudinally connecting the track board, a pre-embedded part for mounting a contact rail, and the like. The precast track board is laid by adopting laying equipment such as a plate transporter, a crane trolley, a fine-tuning trolley and the like, so that the precast slab type vibration damping rail structural system has the characteristics of a simple construction process, high construction speed, high construction speed, good rail smoothness and low labor intensity; and the convenience problem of replacing the track board and the elastic cushion layer after operation is solved.

A telephoto-type of zoom includes, in order from the object, a first lens group having positive power, a second lens group having negative power, a third lens group having positive power, and a fourth lens group having positive power. Upon zooming from wide-angle end to telephoto end, the distance between the first and the second lens groups increases, the distance between the second and the third lens groups decreases, and the distance between the third and the fourth lens groups varies. The third lens group consists of a front group and a rear group. Vibration reduction is carried out by moving only the rear group perpendicularly to the optical axis.

The present invention discloses a cold / heat exchanger with vibration-damping structure. It is mainly characterized by that in the pipeline formed into circulating loop of said cold / heat exchanger a hose is used, and is connected with inlet end and outlet end of compressor, one end of said hose is connected with adapter, another end of said adapter is seal-connected with the described circulating loop, and the inside liner of hose tube body portion connected with the adapter has a lining tube made of rigid material. Besides, said invention also provides the concrete structure of said adapter and its fittings.

The invention discloses a blockage preventing device for a shotcrete pumping pipe. The blockage preventing device comprises an inner pipe, an outer pipe and self-oscillating rings, wherein the outer pipe is formed by connecting at least two unit pipes by connecting components, and a splicing length is free and flexible; one self-oscillating ring is arranged inside each unit pipe, so that the dominant function of oscillating blockage prevention is realized; the self-oscillating rings are arranged on the outer wall of the inner pipe in a sleeving way and the number of the self-oscillating rings is at least two, so that the oscillating efficiency is guaranteed; a pipe body of the outer pipe is made of polyurethane rubber (PUR), so that various outside contact conditions and oscillating reduction requirements are met; the inner pipe and the connecting components are made of polybutylene (PB), so that concrete is efficiently conveyed; by using all the functions of three parts, the concrete is efficiently conveyed, the problem of pipe blockage in the shooting process is better solved, and the working efficiency of the shotcreting is improved; meanwhile, the occurrence of pipe explosion accidents is avoided, and the safety of working is guaranteed.

The invention discloses a vacuum pressure test device, including an electric control box and a vacuum box located above the electric control box. The vacuum box comprises a door body, a motor base plate, an automatic feeding mechanism located on the motor base plate, a motor driving the automatic feeding, a pressure sensor, and a temperature sensor. The electric control box contains a power supply, a switchboard, a vacuum generator, a PCB control panel and a motor driver. A plurality of support portions and tail plug modules are mounted fixedly on the motor base plate. A plurality of guide shafts are disposed below the automatic feeding mechanism. The guide shafts are disposed on the support portions and the tail plug modules in a penetrating and sliding manner. The automatic feeding mechanism comprises a carrier plate, a plurality of accommodating cavities located in the carrier plate, and a sealing plate mounted fixedly with the accommodating cavities. The accommodating cavities and the tail plug modules can be mounted in a plugging manner. The door body is provided with an accommodating portion for accommodating the sealing plate. The sealing plate and the door body are mounted in a sealed manner. The vacuum pressure test device is good in vacuum sealing performance, simple and convenient to operate, high in automation degree and easy to maintain and implement.

The present invention relates to a heat-dissipation type GPS navigation device with a vibration reduction function for outdoor work, comprising a main body, a strap, a display screen and a circuit board. The display screen is arranged on the top of the main body. The strap is arranged on the main body. The circuit board is in a shape of a cuboid. The circuit board is parallel to the display screen. The circuit board is arranged in the main body. The circuit board is provided with a GPS navigation system. A heat dissipation mechanism and four vibration reduction mechanisms are arranged in the main body. The four vibration reduction mechanisms are uniformly arranged around the circuit board. The heat dissipation mechanism comprises a driving component and two heat dissipation components. Each of the vibration reduction mechanisms comprises a fixing block, an airbag and two vibration reduction components. The heat-dissipation type GPS navigation device with a vibration reduction functionfor outdoor work not only realizes a heat dissipation function through the heat dissipation mechanism, but also realizes buffer and vibration reduction effects through the vibration reduction mechanisms, thereby preventing the circuit board from being damaged.

The invention discloses a soft package lithium ion battery module for an electric vehicle. The soft package lithium ion battery module comprises soft package lithium ion battery units, a bottom plate, an upper cover and fastening bolts, wherein each soft package lithium ion battery unit comprises a soft package lithium ion battery and a heat radiating plate, the heat radiating plate is basically in a rectangular structure, and is composed of at least one basically rectangular box body, one slot extends from each of end parts of three side surfaces of the box body, the soft package lithium ion battery is arranged in the box body of the heat radiating plate, and the soft package lithium ion battery and the box body integrally form the soft package lithium ion battery unit, and at least two soft package lithium ion battery units are overlapped along the vertical direction and are fixedly installed between the bottom plate and the upper cover through the fastening bolts to form the soft package lithium ion battery module. The battery units can be flexibly expanded to bring the convenience for arrangement. Slots of adjacent heat radiating plates form an air duct, thus the heat radiation of each battery is facilitated. The soft package lithium ion battery module provided by the invention is compact in structure, convenient to maintain and easy to expand, has a function of protecting the batteries, is convenient to electrically connect, and good in heat radiation property because the battery units are mutually isolated. The soft package lithium ion battery module has a remarkable function for prolonging the service life and improving the energy density of a lithium battery pack of the electric vehicle, and is suitable for industrialized production.

The invention discloses an active suspension having a spiral spring and a rubber spring non-concentric with each other in the technical field of vehicle suspensions. The lower end of an inner cylinderof an active force actuator extends out of an outer cylinder and is concentrically and fixedly connected with a first rubber spring; the first rubber spring consists of a rigid outer ring, a rubber main spring, a rigid guide rail and a rigid inner tube; the spiral spring which is non-concentric with the first rubber spring and the active force actuator is arranged beside the active force actuator; the upper end of the spiral spring is pressed against a connecting plate of a vehicle body; the lower end of the spiral spring is supported on a spring mounting seat fixedly connected to a lower fork arm; the lower fork arm is connected between the vehicle body and a wheel; and the upper end of the outer cylinder of the active force actuator is concentrically and fixedly connected with the lowerend of a rigid outer ring of a second rubber spring whose structure is as same as the structure of the first rubber spring. Except for a primary vibration absorbing function formed by the active force actuator and the spiral spring, the active suspension having the spiral spring and the rubber spring non-concentric with each other also has a secondary vibration absorbing function formed by the first rubber spring and a three-stage vibration absorbing function formed by the second rubber spring.

The invention discloses a sealing structure for a low pressure fuel metal oil pipe of a diesel engine and installation method thereof, the sealing structure comprises a pipe nut, a joint and a sealing rubber sleeve, wherein the pipe nut is installed on the low pressure fuel metal oil pipe of a diesel engine, the joint is arranged at the end part of the metal oil pipe, the pipe nut and the joint form a sealing cavity on the outer wall of the metal oil pipe, the sealing rubber sleeved is arranged in the sealing cavity. A lining is arranged between the outer wall of the metal oil pipe and the inner hole wall of the joint. The sealing structure for the low pressure fuel metal oil pipe of the diesel engine has the characteristics of good manufacturability and good sealing effect, simple assembly, good appearance quality, strong high-low temperature resistance and vibration dumping function and high reliability, is applicable in the diesel engine, especially the diesel engine for vehicles.

A vibration-absorbing track driving method with adjustable ground clearance includes that the vibration damping track drive device with adjustablevibration-absorbing track driving method with adjustable ground clearance is used for vibration damping height adjustment, one end of the upper frame assembly of the track driving device is provided with a driving wheel, At that other end of the upper frame assembly is provide a track adjuster for connection with the rear support wheel assembly, A load-bearing wheel assembly is arrange on a lower platform frame assembly; a shock absorb, a hydraulic cylinder assembly and a platform frame support frame assembly are respectively arranged between that upper platform frame assembly and the lower platform frame assembly; and a track is sleeved on a driving wheel, a rear support wheel assembly and a load-bearing wheel assembly; During the lifting and lowering process of the track driving device, the track driving height changes and the surrounding perimeter remains unchanged, which can effectively prevent the track from falling off; At that same time, the hydraulic cylinder is adopt for lifting and lower the upper platform frame and the lower platform frame, the relative moving element are few, and the track height adjustment is simple; The hydraulic cylinder spring is installed between the hydraulic cylinder and the lower frame, and adjustsany height in the range of lifting and lowering to have the function of damping vibration.

The invention discloses an electricity meter mounting rack. The electricity meter mounting rack comprises a bottom plate, two vertical plates and a supporting mechanism are mounted on the bottom plate, the two vertical plates are symmetrically mounted at the two ends of the supporting mechanism, a supporting plate and a limiting mechanism are mounted on one vertical plate, a supporting frame is mounted on the supporting plate, the limiting mechanism is matched with the supporting plate, a vibration reduction mechanism and a locking mechanism are installed on the other vertical plate, the vibration reduction mechanism is matched with the supporting plate, and the locking mechanism is installed on one side of the other vertical plate and matched with the supporting plate. More electricity meters can be installed in a limited space, workers can manage the electricity meters conveniently, more space is saved, later meter reading and maintenance of the workers are facilitated, the device has a vibration reduction function, the electricity meters can be prevented from being damaged on objects with large vibration, the indication precision of the electricity meters is guaranteed, and theservice lives of the electricity meters are prolonged.

The invention discloses a blockage preventing device for a shotcrete pumping pipe. The blockage preventing device comprises an inner pipe, an outer pipe and self-oscillating rings, wherein the outer pipe is formed by connecting at least two unit pipes by connecting components, and a splicing length is free and flexible; one self-oscillating ring is arranged inside each unit pipe, so that the dominant function of oscillating blockage prevention is realized; the self-oscillating rings are arranged on the outer wall of the inner pipe in a sleeving way and the number of the self-oscillating rings is at least two, so that the oscillating efficiency is guaranteed; a pipe body of the outer pipe is made of polyurethane rubber (PUR), so that various outside contact conditions and oscillating reduction requirements are met; the inner pipe and the connecting components are made of polybutylene (PB), so that concrete is efficiently conveyed; by using all the functions of three parts, the concrete is efficiently conveyed, the problem of pipe blockage in the shooting process is better solved, and the working efficiency of the shotcreting is improved; meanwhile, the occurrence of pipe explosion accidents is avoided, and the safety of working is guaranteed.

The invention discloses a pair of magnetic type heel-replaceable high-heeled shoes. Each shoe comprises a heel and a sole, wherein an inwards sunken convex surface is arranged at the top end of the heel and comprises a boss and a groove arranged in the boss; magnetic steel is fixedly arranged in the groove; a circular hole is formed in the center at the bottom of the heel; a rubber pad is arranged in the circular hole in a matched manner; an inwards sunken slot matched with the inwards sunken convex surface at the top end of the heel; an iron sheet is fixedly arranged at the top end of the inwards sunken slot. The magnetic type heel-replaceable high-heeled shoes have the beneficial effects that the magnetic steel arranged in the heel and the iron sheet arranged in the sole attract each other, so that the sole and the heel can be attracted together; due to the removable rubber pad arranged at the bottom end of the heel, wear of the bottom end of the heel can be reduced; when worn, the old rubber pad is replaced by a new one; the magnetic type heel-replaceable high-heeled shoes have a shock absorption function, so as to relieve the pressure on female heels.

The invention relates to the technical field of motors, and discloses a special micro motor fixing device. The special micro motor fixing device comprise two fixing covers, wherein the left side and the right side of the two fixing covers are fixedly provided with fixing blocks respectively, and the two fixing blocks on the same side are fixedly connected through threaded rods which are in threaded connection; a base is fixedly arranged in each fixing cover; a mounting base is fixedly arranged on the front surface of each base; a motor is movably arranged between the two mounting bases; two telescopic rods are fixedly arranged on the two opposite surfaces of the two fixing covers; one ends, far away from the fixing covers, of the two telescopic rods at the same side are fixedly connected with fixing sleeves respectively; and rubber sleeves movably connected with the motors are fixedly arranged on the opposite surfaces of the two fixing sleeves. According to the special micro motor fixing device, shortening of the service life of the motor caused by looseness of the fixing device due to vibration of the motor is avoided, and the purpose of achieving the vibration reduction functionis realized by the special micro motor fixing device.

Warp knitting machine having a warping section, a yarn supply section and yarn tension means in which for each yarn is provided a tensioning spring (15) comprising a guiding means (17). Such a warp knitting machine should be operated with a higher speed and enhanced possibilities for patterning. To this end the tensioning spring (15) is made of fiber enforced plastic.

The invention relates to an automatic control device and control method for converting contact force into displacement during electric spark deposition bead weld. The automatic control device mainly comprises a feeding mechanism, a floating elastic mechanism, a gun clamping mechanism, a welding gun, an electric control system and the like and converts the contact force between an electrode and a workpiece into displacement of a floating sliding table. A non-contact displacement sensor is adopted for detection, conversion from tension and pressure measurement to displacement measurement is achieved, the strength of a mechanical system is improved, and measurement of micro contact force can be achieved. The contact force between the electrode and the workpiece is determined according to the displacement of the floating sliding table, a controller and the feeding mechanism are used for controlling the electrode to move along the axis of the electrode, closed-loop control over the contact force is achieved, and vibration between the electrode and the workpiece can be reduced through spring damping of the floating elastic mechanism; and the stability and reliability of automatic control of the contact force between the electrode and the workpiece in the deposition process are remarkably improved.

The invention relates to a cutter handle with a shock absorption function. The cutter handle with the shock absorption function comprises a handle body, a damping block and a clamping head, wherein aninner hole is formed in the handle body and used for holding the damping block and the clamping head. The damping block is arranged at the bottom of the inner hole. The clamping head is arranged on the upper portion of the damping block. Four to six circles of grooves are formed in the surface of the inner hole. Shock absorption devices are arranged in the grooves and surround the periphery of the clamping head. The cutter handle with the shock absorption function is simple in structure, and convenient to use. When stone is machined, shaking or vibration of the surface of the stone is reduced. The damping block and the shock absorption devices convert kinetic energy into potential energy, the vibration amplitude of the milling cutter clamping head is relieved, vibration of a milling cutter is further relieved, and the surface coating of the milling cutter is protected. The machining accuracy of the surface of the stone is improved, and the service life of the coated cutter can also beprolonged.

The invention provides a terrain-clearance-adjustable vibration attenuation type caterpillar band drive mechanism. A drive wheel is arranged at one end of an upper trolley frame assembly, the other end of the upper trolley frame assembly is provided with a caterpillar band adjuster used for being connected with a rear supporting wheel assembly, load bearing wheel assemblies are arranged on a lowertrolley frame assembly, shock absorbers, hydraulic cylinder assemblies and trolley frame supporting frame assemblies are arranged between the upper trolley frame assembly and the lower trolley frameassembly, and the drive wheel, a rear supporting wheel assembly and the load bearing wheel assemblies are sleeved with a caterpillar band. In the lifting process of the caterpillar band drive mechanism, the caterpillar band traveling height changes, the caterpillar band surrounding perimeter does not change, the position of a rear supporting wheel is automatically adjusted in real time, and the caterpillar band can be effectively prevented from falling. Meanwhile, hydraulic cylinders ascend and descend to drive an upper trolley frame and a lower trolley frame to ascend and descend, the relative positions of load bearing wheels and the lower trolley frame do not change, relative motion elements are few, the caterpillar band height is adjusted simply, and reliability is high. Hydraulic cylinder springs are installed between the hydraulic cylinders and the lower trolley frame, the caterpillar band can be adjusted at any height in the lifting range, and a vibration attenuation function isachieved.

The invention provides a preparing method and application of a heat-insulation vibration-restraining material. The heat-insulation vibration-restraining material is of a specific block-up vibration reduction structure, one or more foam block-up layers are combined in use, and the heat-insulation vibration-restraining material has the multiple functions of heat insulation, vibration reduction and noise reduction; the added mass is small, the vibration reduction performance is excellent, the vibration reduction temperature range is wide, the vibration reduction and noise reduction effects are remarkable, and the heat-insulation vibration-restraining material can be used for heat insulation, vibration reduction and noise reduction of devices in the ship field, the rail traffic field, the aerospace field and the like; in addition, the heat-insulation vibration-restraining material is nontoxic and tasteless, the bottom-material processing requirement is low, and the universality is high. According to the heat-insulation vibration-restraining material, the technology of the preparing method is simple, preparing time is short, the construction speed is high, the hardness, the thickness and the modulus are adjustable by the adoption of different raw materials and thicknesses, an organic solvent is not adopted, the heat-insulation vibration-restraining material is nontoxic, and the flammable and explosive problem is solved.

The invention discloses a stretcher with a damping function. The stretcher comprises a fixed platform, first damping branch chains, second damping branch chains, a first movable platform, third damping branch chains, fourth damping branch chains, a second movable platform and handles. Each first damping branch chain comprises first springs, torsion springs, a first rotating rod, a second rotating rod and a connecting rod. The first rotating rod comprises a first rod, a rotating shaft and a second rod. By means of the parallel-connection mechanism design principle, by arranging the two types of corresponding branch chains between the fixed platform and the movable platforms and arranging the two types of corresponding branch chains between the first movable platform and the second movable platform, the second movable platform can finally bear shake at four freedom degrees, the multi-freedom-degree damping effect is achieved, and the problems that an existing stretcher is not remarkable in damping effect and multi-direction damping can not be conducted under complicated conditions are solved.

The invention relates to wireless communication equipment with buffering and damping functions for a ship. The equipment comprises a main body, and the main body is in a cuboid shape. A signal processing system is arranged in the main body; a heat dissipation mechanism and two buffer mechanisms are arranged at the bottom of the main body; the heat dissipation mechanism is located between the two buffer mechanisms. The heat dissipation mechanism comprises a heat dissipation pipe, fan blades, a transmission shaft and a transmission assembly. The buffer mechanism comprises a water tank, a heat conduction rod, a heat conduction pipe, an extrusion disc, a spring, an assembly hole and a through hole; the water tank is arranged at the side, provided with the mounting hole, of the body, and a gapis formed between the water tank and the body. According to the wireless communication equipment with the buffering and vibration reduction functions for the ship, the heat dissipation function is achieved through the heat dissipation mechanism, and in addition, the buffering and vibration reduction functions are achieved through the buffering mechanism.

The invention relates to a novel circuit board locking device with a damping vibration attenuation function, which comprises two parts, namely a damping locking strip and a damping mounting plate, which are both of a rubber-metal integrated structure and are mainly used for mounting a plugboard type printed circuit board (PCB). In a severe mechanical environment, the high-damping rubber material can convert dynamic energy into elastic potential energy and heat energy of rubber, so that the dynamic response of the PCB is reduced; and on the other hand, the device has a locking function due to the arc-shaped bulge locking structures on the damping locking strip and the damping mounting plate, so that the use reliability of the PCB is ensured. Besides, the novel circuit board locking device can be used in cooperation with a traditional three-section type or five-section type locking strip to form the adjustable damping locking device, and the mechanical environment of the PCB is powerfully improved.

The invention aims at providing a seawater corrosion resistant pressure-balanced valve. The seawater corrosion resistant pressure-balanced valve comprises a valve seat, a valve core, an oil bag, a spring, a snap ferrule type three-way joint and a conical threaded pipe joint, wherein the slide valve type valve core and the valve seat form a radial seal through an O-shaped ring; the valve seat is seated inside a valve body, one end of the valve seat serves as a water inlet, and the other end of the valve seat and the O-shaped ring form a seal; an inlet of the valve is connected to the valve body through the conical threaded pipe joint; the opening of the pressure-balanced valve is realized in a manner that the pressure of an inlet of a slide valve is higher than that of a balancing port of the slide valve; the valve core of the pressure-balanced valve adopts a slide valve type direct-acting type structure, so that the pressure-balanced valve is high in responding speed and small in pressure overshoot. According to the seawater corrosion resistant pressure-balanced valve, the structure is novel and compact, the controllability of water charging / discharging of a system can be guaranteed, the vibration of the valve core is relatively low, the pressure of the inlet and an outlet is stable, the spring is immersed into oil of the oil bag, and thus, the seawater corrosion prevention for the spring is realized; the seawater corrosion resistant pressure-balanced valve has the advantages of low cost, easiness in mounting and the like.

The invention discloses a flexible connecting bridge between large floating bodies capable of restraining motion. The flexible connecting bridge comprises a force bearing beam rotatably connected between floating bodies (1); a flexible folding blade (2) arranged above the force bearing beam; an equidistant displacement device (5) which is connected between the two floating bodies (1) and connected with rolling bodies (9) in an associated mode, wherein the blades are driven to move on a main beam (6) and a telescopic beam (4) at equal intervals to achieve bridge floor leveling; an axial motion damper (7) which is axially mounted between the main beam (6) and the telescopic beam (4); and rotary dampers (3) which are obliquely supported between the beams and the floating bodies (1) at the ends where the beams are located. The motion response between the floating bodies can be effectively improved, the working environment grade is improved, and compared with the current integral large floating body which is generally not higher than 5-grade sea conditions, the sea condition adaptation grade of open sea deployment can be improved to 6-grade or above after the floating bodies are adopted. And the flexible connecting bridge can also be used for flexible connection between medium-sized or conventional floating bodies.

The invention relates to unmanned aerial vehicle intelligent security and protection equipment with a vibration reduction function. The equipment comprises a body and a protective cover, wherein the main body is cuboid; a mounting hole is formed in the bottom of a box body; the axis of the mounting hole is perpendicular to the plane where the bottom of the main body is located; the protective cover is in a cylindrical shape; the outer diameter of the protective cover is equal to the aperture of the mounting hole; the protective cover penetrates through the mounting hole; the protective cover is connected with the inner wall of the mounting hole in a sliding manner; the bottom of the protective cover and the bottom of the main body are positioned on the same plane; a shooting device is arranged in the protective cover; a flight system and a control system are arranged on the main body; at least four supporting mechanisms are arranged at the bottom of the main body; and a storage mechanism is arranged in the main body. According to the invention, the buffering and vibration reduction functions are achieved through the supporting mechanisms, the situation that internal electronic devices are damaged after the main body is vibrated is avoided, and in addition, the shooting effect is improved through the storage mechanism.

The invention discloses a grounding switch. The grounding switch comprises a housing, a grounding body, a static contact and an end cover, wherein the grounding body is arranged in the housing; the static contact is arranged on the grounding body; the static contact is electrically connected with the grounding body; the end cover is arranged on the housing and fixedly connected with the housing; a dynamic contact is arranged in the housing; an optical position indicator and a sliding block are arranged on the dynamic contact; a crank and a guide column are arranged on one side of the sliding block; the crank is hinged to the sliding block; the sliding block is in sliding connection with the guide column; a control shaft is arranged on the crank and is in drive connection with the crank; a vibration absorber and a sliding sleeve are arranged at the bottom of the dynamic contact; and the sliding sleeve is in sliding connection with the dynamic contact. The grounding switch is accurate to control and stable and reliable in action, has a vibration reduction function and is long in service life.