113results about How to "Supportive" patented technology

The invention relates to a method for extracting bone collagen protein from bone of pig, cow and sheep, including: It removes the impurities of the bone. And then it warms up and extracts the bone under high-pressure in the high-pressure extraction tank. And then it separates the oil and melting soup by using oil-water separator. And then it transfers the separated liquid into the enzymolysis can for enzymatic hydrolysis. And then it cools the liquid to 50 deg.C, and then adds liquid complex flavor protease to enzymolysis for eight hours. And then it warms the liquid up to 90 deg.C, and it eliminate enzyme for 30 minutes. And then it adds natural spice and salt. And then it filters the liquid. And then it sterilizes the liquid with a high-temperature sterilization machine. And then it condenses the liquid to dry materials by using double-effect falling film evaporator. And then it dries the dry materials into power by using pressure-type sprayer.

The invention discloses an electricity meter box installing, conveying and operating platform comprising a frame, a hydraulic system, movable wheels, a fixed bracket, a measuring mechanism, a locator and a control device. The fixed bracket is installed on the frame and used for fixing the meter box, and the distance between the meter box and a wall surface is determined upon completion of fixation; and finally, the fixed bracket is turned to the vertical state, and the frame is raised to the specified height through the hydraulic system. The platform has the functions of conveying the meter box and assisting in installing the meter box. The meter box is fixed more quickly and safely through automatic design.

The invention relates to a sowing technique, in particular to a stub-leaving no-tillage mechanical sowing cultivation method. The stub-leaving no-tillage mechanical spring-manure wheat sowing cultivation method comprises the steps of harvesting wheat, irrigating in winter, performing medical treatment on selected spring-manure wheat seeds, mixing the selected spring-manure wheat seeds with chemical fertilizer, performing stub-leaving no-tillage mechanical spring-manure wheat sowing, performing field management of stub-leaving no-tillage spring-manure wheat, and performing stub-leaving no-tillage spring-manure wheat harvesting and the like. The method has the advantages of increasing moisture in soil, reducing wind corrosion and waster and soil loss, regulating ground temperature, increasing nutrients in soil, improving activity of soil enzymes and the like.

The invention relates to a concave cutter of a slurry balance tube push bench. The concave cutter comprises a cutter body, main cutter blades and first-moving blades. The cutter body is composed of spokes, a side plate, a rib plate, an outer edge plate, a rear cover plate, an abrasion resistance alloy strip and a support beam in a welding mode. The spokes are in a concave shape, the spokes are integrally connected through the side plate, the rib plate and the outer edge plate, and each spoke is provided with the main cutter blade and the first-moving blade. An inner cutter body is arranged inside the cutter body, and an outer cutter body is arranged outside the cutter body. A digging cutting track of the inner cutter body is provided with two main cutter blades and two first-moving blades in an assembling mode. A digging cutting track of the outer cutter body is provided with three main cutter blades and three first-moving blades in an assembling mode, and an outermost digging cutting track is provided with twelve scrapers in an assembling mode. The concave cutter of the slurry balance tube push bench can be suitable for the digging demands of complex soil layers and has the advantages of being high in opening rate, capable of supporting and protecting to a digging face, good in abrasion resistance performance and capable of crushing rock soil at second time and the like.

The invention discloses a treatment method for tunnel local collapse. A supporting body with the cross-section shape which is identical to that of a tunnel is produced by a corrugated pipe, the supporting body is pushed into a tunnel collapse affected section and a collapse body, cleaning of the collapse body can be performed, or grouting and solidification are performed on tunnel surrounding rock of the collapse affected section and surrounding rock at the position of the collapse body and then the supporting body is pushed into the collapse body so as to perform cleaning on the collapse body. By means of the treatment method for tunnel local collapse, defects of complicated construction processes, large resource consumption and long construction period in the prior art can be overcome, particularly, defects that totally sealed protection of loose rock and earth mass can not be achieved and personal safety of constructors and device safety are severely threatened in the prior art can be overcome, and construction safety can be effectively improved. According to the treatment method for tunnel local collapse, totally sealed protection is achieved in the tunnel by means of a steel corrugated pipe, the construction period is effectively saved, the tunnel stability and safety can be guaranteed, and processes and steel quantity of I steel supporting, steel grating supporting and the like can be effectively reduced. Besides, the treatment method for tunnel local collapse is suitable for engineering application.

The invention provides a novel degradable stopper implanted through a guide pipe. The novel degradable stopper comprises a ball bag, a supporting rod and degrading liquid. The supporting rod is fixedly connected with the ball bag, the periphery of the supporting rod is wrapped by the ball bag, and the degrading liquid is a biological material which can be degraded and absorbed and is arranged in the ball bag in a filling mode to play a supporting effect. The invention further provides a conveying system of the novel degradable stopper implanted through the guide pipe. The conveying system comprises a long sheath, an inner core, a loader, a pushing rod and an infusion pipe. The stopper is made of degradable materials, foreign objects are not left in vivo, and a long-term effect is obvious. In addition, the stopper is of a ball bag type structure, and the inner filler of the stopper is temperature-sensitive hydrogel. When an abnormal defect is blocked, the stopper can be attached to the periphery of the defect completely, and especially a better blocking effect is achieved on irregular defects. The stopper can be suitable for blocking of the patent ductus arteriosus and can be made into a stopper suitable for atrial septal defects and a stopper suitable for ventricular septal defects through changing of the shape of the ball bag.

The invention relates to a sowing technique, in particular to a stub no-tillage mechanical sowing cultivation method. The wheat stub no-tillage rape cultivation method comprises the steps of mechanically harvesting wheat, mixing selected rape seeds, chemical fertilizers and sheep dung, sowing rape seeds, performing rape field management, harvesting and the like. The method has the advantages of increasing soil moisture, reducing wind erosion and water and soil loss, regulating ground temperature, increasing nutrients in soil, improving activity of soil enzymes, preventing lodging, increasing forage grass and the like.

The invention discloses an improved skein dyeing machine. The skein dyeing machine comprises a rack and a machine cover, wherein the machine cover covers the rack; a rotating motor is fixed on the left side of the rack; an output chain wheel is fixed on an output shaft of the rotating motor; a rotating shaft is hinged to the upper part of a left side plate of the rack; the front end of the rotating shaft stretches into the rack and is fixed with a liquid spraying pipe; a driving chain wheel is fixed on the part, outside the rack, of the rotating shaft; a chain is tensioned between the driving chain wheel and the output chain wheel; a tapered dye trough is formed in the bottom of the rack; a liquid outlet pipe is arranged at the bottom of the tapered dye trough; a recycling pump is fixed on the right side of the rack; the liquid outlet pipe is communicated with a liquid inlet of the recycling pump through a connecting pipe; the liquid outlet of the recycling pump is connected with a liquid conveying pipe; the upper end of the liquid conveying pipe passes through a right side plate of the rack, and stretches into an inserting hole of the right end of the liquid spraying pipe. According to the skein dyeing machine, the liquid spraying pipe and the liquid conveying pipe are arranged on two side walls of the rack respectively, and the end parts of the two pipes are communicated with each other, so that the fact that both ends of the liquid spraying pipe are supported is guaranteed, so as to prevent deformation.

The invention relates to a band type oil removal device. The band type oil removal device comprises a stander, wherein a scraping plate, a motor and a driving drum are mounted at the upper end of the stander, the driving drum is connected with the motor, a portal frame is mounted at the lower end of the stander, a first support shaft is arranged on the portal frame in a penetrating manner, the first support shaft is sleeved with a first driven drum, transverse rods are respectively fixed at two ends of the first support shaft, a second support shaft is fixed between the two transverse rods, the second support shaft is sleeved with a second driven drum, and an oil absorption band is arranged among the driving drum, the first driven drum and the second driven drum. The band type oil removal device has the advantages that the structure is simple, the use is convenient, the cost is low, the contact time between the oil absorption band and the oil is long, the oil absorption quantity is large, the side end of the oil absorption band has a support force, an action force between the scraping plate and the oil absorption band is large, and the oil removal efficiency is high; the band type oil removal device has excellent social and economic benefits.

The invention discloses a pressing and rotating mechanism for a gasket on a cosmetic bottle body. The pressing and rotating mechanism comprises a rack, wherein a vertical main shaft is hinged to the middle of a top plate of the rack; the bottom end of the vertical main shaft extends out of the bottom surface of the top plate of the rack, and the top of the vertical main shaft extends out of the top surface of the top plate of the rack to be fixedly connected with a rotating disc; a plurality of vertical through holes are formed in the edge part of the rotating disc; guide sleeves are insertedin the vertical through holes in a sleeved mode the outer side walls of the guide sleeves are tightly attached to the inner side walls of the vertical through holes; and a lower supporting sleeve is fixed to the bottom surface of the edge part of the rotating disc, the lower supporting sleeve is positioned under the vertical through holes, and buffer springs are fixed to the top surface of a bottom plate of the lower supporting sleeve. According to the pressing and rotating mechanism, the gasket placed on a bottle mouth of the bottle body can be pressed automatically, and a buffer mechanism arranged on the pressing and rotating mechanism can ensure that the bottle body is not subjected to hard impact when the gasket is pressed down; and meanwhile, clamping blocks arranged on the pressing and rotating mechanism can ensure that the edge part of the rotating disc has supporting force when the rotating disc is pressed, so that the rotating disc rotates normally without tilting.

The invention discloses a tunnel supporting lining with a buffer performance and a construction method of the tunnel supporting lining. Supporting bodies, which includes an external layer supporting body, a middle layer supporting body and an internal layer supporting body, are installed in a tunnel rock wall, the shape of the supporting bodies are matched with the shapes of the external layer supporting body, the middle layer supporting body and the internal layer supporting body, and the supporting bodies are fit for tunnel initial transformation caused by frost heaving and rock burst aftertunnel excavation; when a steel frame is pressed by a pressure produced by the tunnel rock wall, a first top block slides into a first housing and compresses a first flexible part, a first pressure reducing mechanism allows the pressure to be released and buffered, so the steel frame is still provided with a supporting performance; a second pressure reducing mechanism can not only improve the connection intensity and stability of axially-adjacent shape steel, but higher pressure can be taken on by matching with the first pressure reducing mechanism; and an inner layer pressure reducing deviceis installed in the internal layer supporting body, the transformation caused by rock burst, frost heaving or great transformation of soft rock can be fit by a supporting plate, and the supporting performance of the tunnel supporting lining is ensured.

The invention discloses high-elasticity sticky weft knitted fabric, a preparation method and an application thereof, and a lingerie liner with the high-elasticity sticky weft knitted fabric. The preparation method includes that carrying out weft knitting on 20D and / or 70D low-temperature polyurethane filament and 30D and / or 50D nylon to form a tissue structure comprising pin double-sided tissue, upper single-side tissue and lower single-side tissue, and knitting circularly to obtain the high-elasticity sticky weft knitted fabric, wherein the mass content of the polyurethane in the high-elasticity sticky weft knitted fabric is larger than 50%. The high-elasticity sticky weft knitted fabric is prepared through the preparation method. The high-elasticity sticky weft knitted fabric can be used for manufacturing high-elasticity underwear, strapless gown underwear, shapewear, sports underwear, swimsuit, chest liners, side corsage wings, corsage buckle belts, lovers' clothes and kicking straps. The high-elasticity sticky weft knitted fabric is double-faced weft knitted fabric, wherein one face is nylon while the other face is polyurethane; the high-elasticity sticky weft knitted fabric is high in elasticity, sticky performance and polyurethane content and difficult to deform.

A pet bag capable of stretching and expanding comprises a pet bag body. The pet bag body is provided with a pet entrance and comprises a bottom wall, a top wall and enclosure walls connected with the bottom wall with the top wall, at least one of the bottom wall, the top wall or the enclosure walls comprises a stretching body, the stretching body at least comprises two supporting frames, the profiles of the two supporting frames are similar, and the sizes of the two supporting frames are different, elastic soft connecting strips are connected between the profiles of the different supporting frames, and the supporting frames are sequentially decreased or increased from inside to outside. The pet bag with the structure can retract and stretch only by sequentially pushing and pulling the supporting frames. Compared with a traditional pet bag with a zipper structure, the pet bag more simply and conveniently expands and retracts and is larger in expansion space, longer in service life and lower in service cost.

The invention discloses a high-temperature-resistant composite release film, which comprises a release film layer, an adhesive layer and a high-temperature-resistant resin film layer, wherein the release film layer is obtained by co-extrusion process of two thermoplastic resin materials; the adhesive layer is formed by coating one surface of the release film layer with an adhesive; and the high-temperature-resistant resin film layer is glued on the adhesive layer. The three-layer high-temperature-resistant composite release film has a compact structure and is easy to peel off. On the basis of not influencing characteristics of rubber surface, release force is low. A fluorine-containing material is selected for the high-temperature-resistant resin film layer. At the high temperature of 200 DEG C, the high-temperature-resistant resin film layer can never be decomposed or react with the release layer or the adhesive layer. The release film has excellent anti-sticking and isolation effects, and has dimensional stability at high temperature. The release layer adopts an organosilicon elastomer adhesive and the thickness is controlled. Then, there is no residue on the release layer.

The invention belongs to the oil and gas exploration technology field and discloses a filling adaptive water control screen pipe. A base pipe in a valve shield is provided with a large displacement filling hole and an adaptive flow control valve. The external portion of the large displacement filling hole is provided with a self-reset filling mechanism. Or a water-swelling rubber is arranged in anannulus between the base pipe and the valve shield. The self-reset filling mechanism is formed by a spring, a slide sleeve, a sealing ring, a soluble support sleeve and a positioning ring. When the soluble support sleeve supports the slide sleeve, the large displacement filling hole is in an open state. After the soluble support sleeve is corroded by water, the slide sleeve closes and seals the large displacement filling hole. After the water-swelling rubber is swelled in the water, a filling channel between the overflow hole channel of an overflow end ring and the large displacement fillinghole of the base pipe is closed. In the invention, the adaptive flow control valve and a large displacement filling mechanism are effectively combined in the screen pipe so that the large displacementdemand of filling work is satisfied and effective sand prevention and water control during a production process can be realized; and a water control completion effect is effectively improved, and a water control validity period is prolonged.

The invention discloses a ball broaching laminating support, and belongs to the technical field of medical equipment. The ball broaching laminating support comprises a supporting support and a film covering the supporting support. The supporting support is arranged into a broken line or curve closed loop, a tubular hollow structure is formed by the supporting support and a connecting rod, the supporting support has certain supporting performance, and therefore the supporting support can expand outwards under the effect of a saccule to be attacked to the wall of the blood vessel. Compared witha self-expanding type laminating support, the ball broaching laminating support can expand from inside to outside according to the diameter of the wall of the blood vessel, the attaching effect between the ball broaching laminating support and the wall of the blood vessel can be improved, and the radial supporting effect of blood vessels of different diameters can be improved. As an outer sheath pipe similar to a semi-expanding type laminating support restraint support is not needed by the ball broaching laminating support, a conveyor with the small size can be used during implantation of theblood vessel, and precise positioning can be achieved.

The invention discloses a crankshaft grinding machine servo center frame comprising a supporting frame, a first positioning rod, a second positioning rod and two sets of driving assemblies. The second positioning rod comprises an inclined driving segment. Each driving assembly comprises a spiral transmission mechanism and a motor driving the spiral transmission mechanism. The first positioning rod is in the shape of a straight rod, a rod body of the first positioning rod is horizontally distributed, and the positioning end face of the first positioning rod is vertically distributed. The second positioning rod further comprises a supporting segment, and a supporting face of the supporting segment is arranged to be horizontal. An ejecting block is vertically distributed; a supporting block is horizontally distributed; a 90-degree included angle is formed between two positioning faces, the two positioning faces perform auxiliary positioning on a crankshaft jointly, deformation of the crankshaft under the effect of dead load can be prevented, and micro deformation of the crankshaft under extruding force of a grinding wheel of a grinding machine can be prevented as well; and servo motor drive and ball screw nut pair transmission are adopted, the changing extruding force of the grinding wheel of the grinding machine can be offset in real time in the grinding process, and the grinding precision required by an outer circle of a connection journal of the crankshaft is achieved.

The invention relates to the field of diamond self-supporting windows. A method for preparing a diamond vacuum window with a self-supporting frame by virtue of a mask method is characterized by comprising the following steps: step 1, removing surface impurities through ultrasonic cleaning; step 2, placing a molybdenum sheet cleaned in the step 1 at the centre of a nano-diamond film to obtain a sample; and then placing the sample on a substrate table in a reaction cavity of a microwave plasma chemical vapour deposition device; step 3, charging hydrogen after a vacuum degree is lowered to a standard vacuum degree; step 4, turning on a microwave power supply, increasing a microwave power, closing a diaphragm valve after glow discharge is started in a reaction chamber, charging a carbon source gas, adjusting a power and a gas pressure, and stabilizing a plasma state; and step 5, corroding after the completion of deposition, so as to obtain the diamond vacuum window with the self-supporting frame. The method is capable of remarkably improving the capacity of adapting to environmental changes of the diamond self-supporting film, thus facilitating later-period welding of the diamond vacuum window with a metal flange.

The invention discloses a building supporting structure applied to the foundation pit terrain. The structure comprises a building located on the left side of a foundation pit as well as a concrete bottom plate, bearing platforms, pile foundations, non-sticky pre-stressed anchor cables, a crown beam, a metal cover plate, a first anchor cable anchor head, a second anchor cable anchor head and a supporting pile which are located below the building and arranged underground; the building is arranged above the ground; the concrete bottom plate is connected with the building; the pile foundation is connected with the concrete bottom plate through the bearing platforms; and the multiple bearing platforms and the multiple pile foundations support the concrete bottom plate and the building above theconcrete bottom plate. Compared with general cast-in-place piles, the structure of the non-sticky pre-stressed anchor cables, the crown beam and the supporting pile has the advantages that the lateral stiffness and the supporting performance of the supporting pile which cannot realize anchor rod driving are improved, and the supporting performance of the supporting structure is better met.

The invention discloses a garbage fermenting system and a garbage fermenting method of a garbage incineration power plant. The garbage fermenting system comprises a fermenting tank, a feeding system and a discharging system, wherein a top cover is arranged on the top of the fermenting tank; a partition board is arranged above supporting columns inside the fermenting tank; the partition board partitions an inner cavity of the fermenting tank into a fermentation chamber and a filtrate storage chamber; a liquid draining pipe is arranged at one end of the filtrate storage chamber; a filtrate purifying system is connected to the end part of the liquid draining pipe; a gas inlet pipe is arranged at the other end of the filtrate storage chamber; a blast blower and a temperature adjusting chamberare mounted on the gas inlet pipe; the feeding system comprises a material mixing tank and a screw feeder; a garbage inlet and a fermenting agent storage tank are arranged on the top of the material mixing tank; the discharging system is a discharging bin; a gas exhausting main pipe is mounted on the top of the fermenting tank; a deodorizing tower is mounted on the end part of a gas exhausting pipe. By adopting the garbage fermenting system and the garbage fermenting method, the fermentation temperature in the fermenting tank and the fermentation time can be controlled, environmental odor canbe quickly and effectively eliminated, generation and escape of the odor can be reduced and leachate produced in the garbage fermenting process can also be effectively treated.

The invention discloses a ventilation support arm device applied to a dual-throat thrust vector nozzle, and relates to the field of subsonic transonic and supersonic wind tunnel aerodynamics. The device comprises an aircraft model, a ventilation support arm, an air supply pipeline and a support rod, wherein the support rod adopts a slender cube structure; the bottom end of the ventilation supportarm is fixedly connected with the axial end of the support rod; the aircraft model is horizontally and fixedly installed at the top end of the ventilation support arm; the air supply pipeline is fixedly installed on the inner wall of the ventilation support arm; the ventilation support arm comprises a support arm main body and a connecting flange; the support arm main body adopts a hollow parallelogram plate-shaped structure; the connecting flange is fixedly installed at the top end of the support arm main body; and the ventilation support arm is fixedly connected with the aircraft model through the connecting flange. According to the device, collisionless passing of the air supply pipeline of a dual-engine model of the dual-throat thrust vector nozzle in a wind tunnel experiment and a connecting supporting experiment for the model are realized.

The invention discloses a vascular anastomosis fixing support apparatus and an operation method thereof. The vascular anastomosis fixing support apparatus comprises a main support part and a bending part extending upwards along one end of the main support; the main support part includes an upper surface and a lower surface, the middle of the upper surface of the main support part extends upwards to form a raised support part, and the middle of the top face of the raised support part sinks inwards to form a support camber surface to fit the vessel; positioning strips used for positioning the vessels are respectively arranged on the upper surface of the main support part and two sides of the raised support part; a plurality of overflow holes are further formed in the main support part and isarranged in the manner of penetrating the upper surface and the lower surface of the main support part; the main support part uses bright colors such as green to distinguish easily, and horizontal and vertical scales are arranged on the upper surface of the main support part. By the arrangement, the anastomosed vessels can be placed smoothly without infiltrating in the nearby cerebrospinal fluidor blood and other fluids and can be completely exposed to the surgeon's line of sight, and convenience in operation is achieved.

The invention discloses a slope terrain pier deformation repairing structure and a repairing method. The structure comprises a support beam, a support key and two resistance piles. The two resistancepiles are arranged in slope foundations on two longitudinal sides of a bridge bearing platform correspondingly. The resistance piles and the two longitudinal sides of the bridge bearing platform are arranged at intervals, the resistance piles are located on the lower side of the slope foundation relative to the bridge bearing platform, the supporting beam is connected with the tops of the resistance piles, the supporting key is arranged between the supporting beam and the bridge bearing platform, one side of the supporting key is fixedly connected with the supporting beam, and the other side of the supporting key is fixedly connected with the bridge bearing platform. The resistance piles for providing a transverse supporting force are arranged on two longitudinal sides of a pier; and during construction, transverse deformation of an existing pier cannot be affected or is slightly affected, uncontrollable transverse deformation is avoided, the supporting beam provides a supporting foundation on one side and transmits a supporting force to the resistance piles, the supporting key can transmit the transverse supporting force to the bridge bearing platform, a high supporting and deformation resisting capacity is achieved, and a pier deformation repairing effect is improved.

The invention provides a lifting or supporting machine for earthquake rescue and relates to the field of rescue, engineering application and the like, in particular to a special lifting or supporting machine needed in natural disasters such as earthquakes and the like. The lifting or supporting machine consists of a spherical body and four telescopic type hydraulic cylinders, wherein the telescopic type hydraulic cylinders are mutually connected in the spherical body by pipe joints, and four points where the four telescopic type hydraulic cylinders are contacted with the surface of the spherical body form four apex points of a regular hexahedron inscribed to the spherical body; the supporting palms on the top parts of the telescopic type hydraulic cylinders are connected with the telescopic type hydraulic cylinders by sphere pairs; and the top part of each telescopic type hydraulic cylinder is provided with a supporting palm provided with a force sensor. Under a condition of lower load, the lifting or supporting machine is used as a lifting machine to rescue people buried beneath collapsed buildings, and under a condition of bigger load, the lifting or supporting machine is used as a supporting machine to protect trapped persons from the secondary extrusion when the large-scale machinery is used for moving buried objects; and the lifting or supporting machine also has the advantages of simple structure, convenient operation, easy maintenance, big lifting or supporting force and strong environmental adaptability.

The invention provides a guided bone regeneration device used for bone repair and a preparation method thereof. The guided bone regeneration device includes a support layer and a guided bone regeneration membrane, which covers at least a part of the surface of the support layer in order to cover a to-be-repaired position. The support layer and the guided bone regeneration membrane have biodegradability. The guided bone regeneration device has supporting effect itself, can be totally degraded in human body, has good affinity with autologous tissue, and can avoid the operation that in the bone repair operation in the prior art, secondary operation is required to move out a material, such as a titanium mesh, for supporting the bone repair space, thus further avoiding the problems of extra injury and iatrogenic complications.

The invention relates to the technical field of waterstops, in particular to a preparation method of a rubber waterstop and the rubber waterstop obtained through the preparation method. The preparation method comprises the steps of mixing materials, manufacturing cover rubber, burying a core, performing pressing, performing vulcanizing and the like. The rubber waterstop comprises a belt body, a tubular structure is arranged on the belt body in the extending direction of the belt body, the rubber waterstop is characterized in that a hose is arranged in the tubular structure, and the outer wallof a hose layer is attached to the inner wall of an outer layer. According to the preparation method, the longer rubber waterstop can be prepared, a plurality of rubber waterstops can be prepared sideby side at the same time, the quality of the rubber waterstops can be improved, human resources can be saved, and the site occupied by production equipment can be reduced. The rubber waterstop provided by the invention is longer in service life and better in waterproof effect.

The invention discloses a reversing mechanism of a land scooter. The reversing mechanism is characterized by comprising a front reversing assembly and a rear reversing assembly, wherein the front reversing assembly is connected with a scooter frame and a front axle, and the rear reversing assembly is connected with the scooter frame and a rear axle; and the reversing mechanism further comprises aconnecting longitudinal beam, and the connecting longitudinal beam is connected with the front reversing assembly and the rear reversing assembly. By the reversing mechanism, the reversing sensitivityof the land scooter can be improved.

The invention discloses a quick paint spraying device with an anti-splashing mechanism for a fabricated building, and belongs to the technical field of fabricated buildings. The quick paint spraying device comprises a paint bucket, the anti-splashing mechanism, a paint pump, a lifting frame, a stirring assembly, a positioning assembly and a driving motor; A middle screw rod is installed inside, an electric push rod is started, the electric push rod can push the lifting frame downwards, paint is pressed into the paint pump, and when the lifting frame descends, a mounting threaded sleeve of the stirring assembly in the lifting frame can drive stirring blades to rotate; and the paint in the paint bucket can be effectively stirred in all directions while paint pressing and spraying are carried out, the overall flowability and the using effect of the paint are guaranteed, meanwhile, outer scraping plates with second outer jacking springs are installed at the top and the bottom of the lifting frame, when the lifting frame moves up and down, paint or particles attached to the paint inner wall of the paint bucket can be rapidly scraped off, accumulation of the particles is avoided, and it is guaranteed that solid particles in the paint can be effectively stirred and dissolved.

The invention discloses a ring support for a mobile personal communication device. The ring support comprises a body and a ring arranged on the body in an overturnable mode. The body is provided with a triggering device and a Bluetooth module used for being connected with the mobile personal communication device. The Bluetooth module is located in the body. The triggering device is exposed out of the surface of the body and electrically connected with the Bluetooth module. In this way, when it is inconvenient to make a phone call in an emergency, a user can manually trigger the triggering device to control the Bluetooth module to be in communication with the mobile personal communication device, so that a corresponding application program on the mobile personal communication device emits a help-seeking signal or a warning signal to an appointed person. The help-seeking or warning function in the emergency can be competed through the mobile personal communication device in cooperation with the ring support so that the ring support can be better combined with the mobile personal communication device to play a greater role. Accordingly, the use functions of the ring support are extended, the application range of the ring support is also effectively broadened, and more use convenience is brought to a user.

The invention discloses a movable counterweight assembly and relates to the technical field of engineering machinery and equipment. The movable counterweight assembly comprises a counterweight body and a platform, guide rails are arranged at the two ends of the counterweight body respectively and slidably connected with guide grooves mounted in the platform, an oil cylinder is arranged on the platform, and a piston rod of the oil cylinder is connected with the counterweight body. Compared with the movable counterweight assembly, the movable counterweight assembly is simple in structure and convenient to operate, the counterweight can be conveniently and quickly moved when important parts of engines, hydraulic pumps and the like are maintained, and convenience in maintenance of the complete machine is improved.