112results about How to "Play a role of support and protection" patented technology

The invention discloses an elastic protective underframe of an unmanned aerial vehicle. The elastic protective underframe of the unmanned aerial vehicle comprises an underframe body. The underframe body is installed at the bottom of the unmanned aerial vehicle. The underframe body comprises two supporting frames which are installed at the bottom of the unmanned aerial vehicle. Each supporting frame is formed by fixing a plurality of elastic supporting rods together. Torsion springs are installed at the upper ends of the elastic supporting rods. A hydraulic rod is connected to the rod body in the middle section of each elastic supporting rod in an embedded mode. Each hydraulic rod is sleeved with a compression spring body. An idler wheel body is arranged at the bottom of each elastic supporting rod. In this way, the elastic protective underframe can be installed at the bottom of the unmanned aerial vehicle for supporting and protecting, the underframe body can slide outwards to be opened when stressed and can be used for elastic supporting, the unmanned aerial vehicle can be well protected when the unmanned aerial vehicle takes off and lands or the bottom of the unmanned aerial vehicle is collided, and the unmanned aerial vehicle is stabilized.

The invention relates to a manufacturing process of a large-size thin-walled cylinder body, comprising the following steps of: inputting the front end of a steel plate with the thickness meeting requirements into a three-roller plate bending machine, and bending the steel plate into an arc shape through a compression roller by the three-roller plate bending machine; arranging a bracket at one side of the three-roller plate bending machine, arranging a carrier roller on the bracket, wherein the carrier roller is arranged parallel to the compression roller of the three-roller plate bending machine, and the height of the carrier roller corresponds to the diameter of an opening of the large-size thin-walled cylinder body; enabling the steel plate to ascend from the outlet end of the three-roller plate bending machine under the thrust action of the three-roller plate bending machine during bending and keep a same arc all the time in the bending process, and enabling the front end of the steel plate to be naturally overlapped with the carrier roller after reaching a highest point and then continuously downwards bent back to the inlet end of the three-roller plate bending machine; connecting divided edges of the front end and the rear end of the large-size thin-walled cylinder body which is completely bent in a parallel and level way, and also fixing through spot welding; and welding to form a circular cylinder body. The invention can effectively control the deformation of the cylinder body in the manufacturing process by utilizing a principle of the action of one support on a circumference, is more convenient and faster to assemble, effectively reduces the manufacturing cost and has very good popularization value.

The invention discloses a steel casing arrangement device for sand foundation cast-in-place pile drilling and a construction method of the steel casing arrangement device. The steel casing arrangementdevice comprises a pre-embedded steel plate and a guiding cylinder. The pre-embedded steel plate is slidably connected with a moving plate, a mechanical arm is arranged at the top end of a circular disc, and a matching frame is arranged at the end of the mechanical arm; and a clamping frame is arranged in the matching frame, a positioning cylinder is arranged in the clamping frame, a limiting device is arranged on the inner wall of the positioning cylinder, and the limiting device is used for fixing the guiding cylinder. The construction method comprises the following steps that (a) a steel casing is manufactured; (b) a construction foundation is leveled; (c) laying off of the arrangement position of the steel casing is conducted; (d) primary positioning of the arrangement position of thesteel casing is conducted; (e) precise positioning of the arrangement position of the steel casing is conducted; (f) the steel casing is driven and arranged at a first steel casing arrangement point;and (g) the steel casing is driven and arranged at remaining steel casing arrangement points. According to the steel casing arrangement device for sand foundation cast-in-place pile drilling and theconstruction method of the steel casing arrangement device, it can be ensured that the steel casing is always kept to be perpendicular in the driving and arranging process, meanwhile the steel casingcan be prevented from deforming, the arrangement accuracy of the steel casing can further be improved, and the construction quality of the steel casing is improved.

The invention provides a hoisting turnover tool and a hoisting turnover method for a large line type ship body section. The hoisting turnover tool comprises a jig frame template, a horizontal frame plate and a vertical frame plate, and the upper end of the vertical frame plate is connected with the other end of the horizontal frame plate; and a first lifting lug is arranged at the joint of the jigframe template and the horizontal frame plate, a second lifting lug is arranged at the joint of the vertical frame plate and the horizontal frame plate, and a third lifting lug is arranged at the joint of the vertical frame plate and the jig frame template. The hoisting turnover tool is arranged on the large line ship body section, lifting hooks are connected with the lifting lugs on the hoistingturnover tool, hoisting turnover operation is conducted on the large line ship body section, the large line ship body section which is turned over to be in an inverted state is directly placed on theground, the jig frame does not need to be rearranged, and the site and equipment are saved.

The embodiment of the invention provides a rollable display device. The rollable display device comprises a rollable display module; the rollable display module comprises a hard film set and a soft film set which are arranged in a stacked mode; the total Young modulus of the hard film set is larger than that of the soft film set; the rollable display device comprises a curled state and a flattenedstate; in the flattened state, the surface of the side, away from the soft film set, of the hard film set is a first surface; in the curled state, the rollable display module curls towards one side of the first surface; the minimum thickness of the soft film set is D1; the thickness of the hard film set is D2; D1 and D2 satisfy the equation that D1/(D1+D2)pi>n/a, wherein n is a preset curling turn number of the rollable display module, n is a positive number, and a is a failure strain of the soft film set under the action of shear stress. According to the rollable display device of the invention, the cracking of film layers caused by the failure strain of the soft film set due to the curled state can be avoided, and the performance reliability of the display device is improved.

The invention discloses an oversized plate rib-free full-glass curtain wall mounting construction method. The oversized plate rib-free full-glass curtain wall mounting construction method is characterized by comprising the following steps that firstly, a glass dedicated lifting truss is designed and manufactured; secondly, a glass fixing device and a lifting hoist are mounted; thirdly, glass is bound on the lifting truss; fourthly, a crane is used for lifting the glass to the outer side of an overhanging eave of a building main body through the lifting truss; fifthly, a three-step method of first pushing, second pulling and third lifting is adopted for lifting the glass to the mounting fixing point; sixthly, external fixed angle iron is mounted; and seventhly, cleaning and acceptance checkare carried out. The lifting truss is simple in structure and achieves the supporting protecting effect on the glass, and lifting is convenient; the lifting manner of combining lifting of the liftingcrane with the three-step method of first pushing, second pulling and third lifting is adopted for solving the problems that the vertical mounting space is narrow, and under the condition that the external overhanging eave of the building main body exists, the crane cannot be used for carrying out direct in-place lifting; and the lifting structure is simple, and operation is convenient.

According to the differential pressure sensor, the preparation method and the application thereof, a three-layer silicon wafer bonding mode is adopted, an upper layer structure and a middle layer structure both adopt SOI wafers, and a lower layer structure adopts a graphical doped intrinsic silicon wafer; lead bonding pads of the electrodes are positioned on three steps on one side of the sensor; the peripheries of the upper electrode and the lower electrode are provided with approximately annular through holes. According to the sensor, the path of the electric field line of the fixed capacitor part is prolonged, so that the fixed capacitance in a capacitance signal output by the upper capacitor is reduced; the lower-layer structure adopts intrinsic silicon, and only the lower-layer electrode and the lead part are doped and can conduct electricity. By picking up the variable quantity of the two capacitors, the measurement of the pressure difference of fluid in the two different cavities is realized; the output sensitivity, the resolution ratio and the linearity of the sensor are all improved; external lead welding spots of the sensor are arranged at the three-layer step, an external circuit is electrically connected with a sensor lead at the three-layer step, and integration and packaging of the sensor are facilitated.

The invention discloses an anti-seepage structure for a balcony. The anti-seepage structure comprises a waterproof coating layer, a coiled material waterproof layer, an anti-seepage film layer and a protecting layer, the protecting layer comprises a supporting plate layer and a ceramic tile layer which are arranged from bottom to top, the supporting plate layer is formed by supporting plates in anassembled mode, clamping blocks are arranged on the corners around the top face of each supporting plate correspondingly, the ceramic tile layer is formed by ceramic tiles in an assembled mode, clamping grooves are formed in the corners around the bottom face of each ceramic tile correspondingly, and the clamping blocks and the clamping grooves are matched. A construction method comprises the following steps of (1) base layer treatment, (2) treatment of the waterproof coating layer, (3) laying of the coiled material waterproof layer, (4) layering of the anti-seepage film layer and (5) layingof the protecting layer. The anti-seepage structure for the balcony is ingenious and reasonable in overall structural design, through the anti-seepage structure, the anti-seepage effect of the balconycan be improved effectively, the protecting layer is divided into the supporting plate layer and the ceramic layer, the waterproof effect of the balcony can be further improved under the situation ofensuring the surface attractive degree of the balcony, and the upper ceramic tile layer can also be conveniently laid through the supporting plate layer.

The invention discloses a skin shaping device with an auxiliary turnover mechanism for the burn department. The skin shaping device comprises a shaping supporting bed board and the auxiliary turnover mechanism. The auxiliary turnover mechanism comprises a winding barrel, a traction belt is wound around a winding shaft of the winding barrel, and the free end of the traction belt is connected with a waist supporting piece in a matched mode. The winding shaft of the winding barrel is fixedly connected with a driving motor. One side of the shaping supporting bed board is movably connected with the fixed end of the waist supporting piece, and the waist supporting piece can rotate up and down with the fixed end as the rotation center. The free end of the waist supporting piece is movably connected with a side turnover executing mechanism. The side turnover executing mechanism is connected with the auxiliary turnover mechanism. The driving motor can drive a push rod of the side turnover executing mechanism to move up and down while driving the winding shaft of the winding barrel to rotate. The skin shaping device can assist the human body in completing the turnover action, and the human body can be kept in the side turnover posture. The invention further discloses an auxiliary turnover method for the burn department.

The invention discloses a shore-based wireless charging device for an electric ship. The device comprises a shell, a fixed ring is fixedly connected to the inner wall of the shell, an electric energyemission device is fixedly connected to the inner wall of the fixed ring, a motor is fixedly connected to the upper surface of the shell, the bottom of an output shaft on the motor is fixedly connected with a rotating shaft, the surface, close to the top, of the rotating shaft penetrates through the top of the shell and is rotatably connected with the shell, and fan blades are fixedly connected tothe bottom of the rotating shaft. Through cooperative use of the structures, the problems that in the actual use process, due to the fact that the shore electric energy emission device and an electric energy receiving device on the ship are in wireless attraction, and when electric transmission is carried out, a large amount of heat is generated, power transmission efficiency is easily reduced, meanwhile, the service life of the device is easily shortened, according to traditional wind cooling, air with water steam on the shore is easily blown to the device, the device is prone to failure, and inconvenience is brought to use are solved.

The invention discloses a municipal engineering drainage manhole cover. The municipal engineering drainage manhole cover comprises a stainless steel protection net, a rectangular opening, a manhole cover body, a spring, a bottom plate, a connecting plate and a rotating shaft. The rectangular opening is formed in the middle part of the manhole cover body, and the stainless steel protective net is welded to the upper surface of the rectangular opening. The bottom plate is mounted on the bottom surface of the rectangular opening, and the bottom plate is fixedly connected with the side of the rectangular opening through the spring. A groove is further formed in the bottom surface of the manhole cover body on the side of the rectangular opening, and the connecting plate matched with the grooveis hinged into the groove. The bottom plate is hinged to one end of the connecting plate, a through hole and a drain hole are formed in the manhole cover body, and phosphor stripes and reflective stripes are symmetrically arranged on the manhole cover body. The drainage manhole cover is simple in structure and convenient to use, when the amount of water is small, the water is directly discharged into the manhole cover through the drain hole; when the volume of the water is too large, the water pressure is greater than the tension of the spring, so that the bottom plate is opened for drainage;and the arranged phosphor stripes and the reflective stripes play an warning role at night, and better practical application value and promotion value are achieved.

The invention provides a free sandwich heat-preservation wall connection element, which comprises a connecting rod and a supporting plate, wherein the connecting rod consists of an end rod and a tail rod, an end plate is arranged at the front end of the end rod, the back end of the end rod is an insertion locating end, and the tail rod is mounted in the insertion locating end of the end rod; a through hole is formed in the supporting plate, the insertion locating end of the end rod is inserted in the through hole in the center of the supporting plate, and the insertion locating end and the through hole are tightly matched. When the free sandwich heat-preservation wall connection element provided by the invention is applied to construction of a sandwich heat-preservation wall, connection location of an EPS module is implemented under a condition that a common connection element cannot be used for implementing the connection location of the EPS module. When the free sandwich heat-preservation wall connection element is in use, the tail rod is inserted into the EPS module, and the supporting plate is adhered to the outer side of the EPS module and is tightly in contact with the surface of the EPS module, so that the EPS module is supported and protected in a concrete pouring process, breakage of the EPS module can be prevented, and the tail rod and a bearing wall are poured into a whole body by concrete.

The invention relates to a folding type filter cartridge of a polytetrafluoroethylene composite microfiltration membrane, which comprises a filter dielectric layer, an internal support column and an external support column, wherein the filter dielectric layer comprises a layer of polytetrafluoroethylene composite membrane, a layer of plain weave, a layer of dacron non-woven cloth and a layer of polypropylene net-shaped structure; the plain weave is arranged on the upstream side of the polytetrafluoroethylene composite membrane; the dacron non-woven cloth is arranged on the downstream side of the polytetrafluoroethylene composite membrane; the polypropylene net-shaped structure is arranged on the downstream side of the dacron non-woven cloth; any two adjacent fins are connected in a welding mode; the upper ends of the internal support column and the external support column are welded with an upper end cover, and the lower ends are welded with a lower end cover; a positioning triangle fin is welded on the upper end cover, and an interface pipe fitting is welded on the lower side of the lower end cover; the polytetrafluoroethylene composite membrane is taken as a filter membrane; the plain weave on the upstream side and the polypropylene net-shaped structure on the downstream side of the polytetrafluoroethylene composite membrane have the action of support and protection; and the hydraulic resistance of the polytetrafluoroethylene composite membrane is less.

The invention discloses a vacuum cooling machine body capable of solving food safety and sanitation problems, which includes a box body with front and rear feeding and discharging, and a sealing door that is suspended at the inlet and outlet of the box body and can slide left and right along the box body. There is a waterproof sight glass on the top to observe the cooling state of the coolant in the box. When the airtight door reaches the inlet and outlet, it is used to pull the airtight door to the inlet and outlet and lock it on the box. Waterproof door locks, on the left and right sides of the inlet and outlet of the box body, there are respectively provided with the door connected to the box for guiding the sealing door when the sealing door is pushed away from the inlet and outlet, and for positioning when the sealing door reaches the inlet and outlet. The guiding and positioning mechanism also includes a waterproof junction box arranged on the box body for leading out the wires embedded in the box body. The invention has good waterproof sealing performance, high protection level, the waterproof level can reach IP68 level, the steam cleaning protection level can reach IP69K level, the number of colonies is small, and it is safe and hygienic.

A preparation method of a fuel cell membrane electrode comprises the following steps: preparing catalyst slurry: weighing a Pt-based catalyst, dispersing the Pt-based catalyst in a mixed solution of water and an organic solvent, dropwise adding a mixed solution of Nafion and isopropanol while performing ice-bath cooling ultrasonic dispersion, and performing ice-bath cooling ultrasonic dispersion for 0.5-5 hour, cutting the membrane body: cutting the proton exchange membrane and the gas diffusion membrane into required sizes according to the catalytic active area of the membrane electrode to beprepared, reserving 1-10mm for each side, cutting the edge sealing membrane according to the sizes of the cut proton exchange membrane and gas diffusion membrane, fixing the support membrane: adhering the support membrane to the front surface of the cut proton exchange membrane through glue, not performing any treatment on the back surface of the proton exchange membrane, reducing the consumptionof the proton exchange membrane, and after the first hot pressing, enabling the frame membrane and the gas diffusion layer to play a role in supporting and protecting. The problems of swelling, deformation and distortion in the processes of operation, spraying, hot pressing and the like can be effectively avoided.

The invention provides a puncture needle structure with the adjustable magnetostriction direction. The puncture needle structure comprises an outer puncture needle, an inner puncture needle, a pushing mechanism and a steering mechanism, wherein the inner puncture needle is sleeved by the outer puncture needle, the pushing mechanism comprises a pushing rod, the front end of the pushing rod is fixedly connected with the inner puncture needle, and the pushing rod is sleeved by the outer puncture needle; the steering mechanism comprises a guide sleeve, magnetostriction plates and electrifying leads, the outer puncture needle is sleeved by the guide sleeve, the magnetostriction plates are embedded in the guide sleeve and symmetrically arranged, the electrifying leads are positioned on the magnetostriction steering guide sleeve, the electrifying leads are connected with the magnetostriction plates, and the displacement difference generated by different voltages provided to the magnetostriction plates by the electrifying leads controls the deflection angle of the inner puncture needle. According to the puncture needle structure with the adjustable magnetostriction direction, through deflection angle control, the inner puncture needle is guided to smoothly pass through the important blood vessel and peripheral normal tissue, the structure is simple, the control is flexible, the guide accuracy is high, and the deficiency in radial orientation steering of the existing puncture needle and auxiliary positioning structures of the existing puncture needle during the probing process is overcome.

The invention belongs to the technical field of automobile seats, and particularly relates to an automobile seat with a head protection support. The automobile seat comprises a headrest, an automobileseat, a head protection support pillow, an adjusting device and a fixing device, wherein the bottom of the adjusting device is connected with a motor box, a first movable groove is longitudinally formed in the middle of the bottom of the adjusting device, and a rotating roller is transversely arranged in the adjusting device; a driven wheel is installed in the middle of the outer wall of the rotating roller, supporting columns are connected to the left side and the right side of the rotating roller, a motor is installed on the right side wall in the motor box, an output shaft of the motor isconnected with a driving wheel, and third movable grooves are transversely formed in the middles of the left side and the right side of the adjusting device; the supporting blocks are connected to thebottoms of the head protection supporting pillows, the head protection supporting pillows are arranged on the left side and the right side of the headrest above the automobile seat, in the daily driving or riding process, the head is effectively supported, and when automobile collision occurs, the head of a passenger is supported and protected to a certain extent.

The invention discloses a supercritical water oxidation evaporation wall type reactor, and relates to the field of supercritical water oxidation reactors. The evaporation wall type reactor comprises acylinder body and a cylinder cover; a material inlet, an oxidant inlet and a reaction cavity are formed in the cylinder cover; the reaction cavity is positioned below the material inlet and the oxidant inlet; a porous evaporation wall is arranged in the cylinder body; an upper evaporation wall water inlet, a middle evaporation wall water inlet and a lower evaporation wall water inlet are formed in the side surface of the cylinder body; and an upper throttling ring, a middle throttling ring and a lower throttling ring are respectively arranged below the upper evaporation wall water inlet, themiddle evaporation wall water inlet and the lower evaporation wall water inlet, and are positioned in an annular gap formed by the inner wall of the cylinder body and the porous evaporation wall. According to the evaporation wall type reactor, the treatment capacity of organic matters can be improved, the functions of the evaporation wall type reactor in the aspects of corrosion resistance and salt deposition are better played, and the evaporation wall type reactor has guiding significance in promoting structure development and process optimization of the evaporation wall type reactor.

The invention belongs to the technical field of geotechnical engineering, and particularly discloses a geotechnical engineering slope reinforcing device and a reinforcing method. The geotechnical engineering slope reinforcing device comprises a fixing part, an anchor rod, a reinforcing plate, a protection plate, a supporting rod and an intercepting plate. The fixing part is laid on the surface of a slope; the anchor rod is inserted into the slope; the reinforcing plate is positioned below the fixing part and is inserted into the slope; the protection plate is located between the fixing part and the reinforcing plate and comprises a fixing plate, a sleeve plate and an elastic part, the top end of the fixing plate is hinged to the fixing part, the bottom end of the fixing plate is sleeved with the sleeve plate, and the bottom end of the sleeve plate abuts against the upper surface of the reinforcing plate; one end of the elastic part is fixedly connected with the sleeve plate, and the other end is fixedly connected with the fixing part; one end of the supporting rod is hinged to the side wall of the reinforcing plate, and the other end is hinged to the side wall of the sleeve plate; one end of the intercepting plate is fixedly connected with the fixing part, and the other end is fixedly connected with the reinforcing plate. According to the geotechnical engineering slope reinforcing device, rock soil is reinforced, and meanwhile, the rock soil which slides downwards can be effectively prevented from continuously moving downwards.