201results about How to "Avoid force" patented technology

The utility model discloses a disassembling tool for a locomotive axle box body. The disassembling tool comprises a sleeve with an opening in one end and a pulling plate arranged on one side of the closed end of the sleeve. The inner diameter of the sleeve is not smaller than the diameter of the shaft end gland; a first bolt which is in threaded connection with the pulling plate is arranged at the center of the pulling plate, and at least three second bolts which are in threaded connection with the pulling plate are arranged around the first bolt; a plurality of pull rods penetrating through the pull plate are arranged on the pull plate around the first bolt, nuts are arranged at the ends, close to the pull plate, of the pull rods, and when the first bolt and the shaft end gland are coaxially arranged, the pull rods correspond to mounting holes in the end face of the shaft box body in position. According to the utility model, the axle box body is uniformly stressed in the withdrawing process, so that the situation that the axle box body is inclined due to stress when being withdrawn is avoided, a retainer, a roller, an inner ring and other parts in the axle box bearing are prevented from being stressed, and the risk of damage to the axle box bearing is eliminated.

The utility model discloses a high-viscosity colloid dispensing switch valve which comprises a driving cylinder body, a colloid feeding block arranged below the driving cylinder body, a piston rod capable of moving in the vertical direction and a colloid sealing head installed at the lower end of the piston rod. The outer side of the piston rod is sleeved with an upper piston disc and a lower piston disc respectively, and a spring in a compressed state is arranged between the lower surface of the lower piston disc and the inner wall of the bottom of the driving cylinder body. A plurality of air inlet holes are formed in the side wall of the piston rod and located above the upper piston disc, and a first air outlet hole is formed in the side wall of the piston rod and located between the horizontal partition plate and the lower piston disc. According to the utility model, the glue solution can be prevented from overflowing and wasting and damaging products under the conditions of power failure and gas failure, the acting force of the spring can be overcome, and the stability of the size of the glue outlet gap is ensured, so that the stability and the consistency of the glue outlet flow are ensured.

The utility model discloses a dam strength detector in the technical field of dam strength detection, which comprises a base, a back-and-forth moving component is arranged on the base, a lifting component is arranged on the back-and-forth moving component, a mounting plate is arranged on the lifting component, an angle adjusting component is arranged on the mounting plate, and the angle adjusting component is arranged on the angle adjusting component. A fixing plate is connected to the angle adjusting assembly, a hand wheel is rotated, so that a rotating shaft drives a bidirectional lead screw to rotate, then clamping plates on the two sides are driven to move towards the opposite sides, the fixing plate with the adjusted angle is fixed, and then when an electric push rod drives a drill bit on the detector body to be inserted into a dam, pressure can be shared through the clamping plates; therefore, only the angle adjusting assembly is prevented from being stressed, the service life of the angle adjusting assembly is further prolonged, and when the angle adjusting assembly needs to be overhauled, detection work can be guaranteed through the clamping plate.

The invention discloses a rotary linear chained wire drawing machine and a wire drawing process thereof.The rotary linear chained wire drawing machine comprises a wire drawing machine body, a chained rotating machine and a vertical take-up reel, the wire drawing machine body comprises a lubricant groove, a natural gas heating furnace and a mold frame, and a tungsten filament sequentially penetrates through the lubricant groove, the natural gas heating furnace and the mold frame; the chain type rotating machine comprises a base and a plurality of high-pressure air clamps reciprocating in the kidney-shaped track, each high-pressure air clamp comprises a high-pressure air cylinder and a clamping part driven by the high-pressure air cylinder, and when the clamping parts rotate to the linear section of the side, adjacent to the mold base, of the kidney-shaped track, the clamping parts of the high-pressure air clamps clamp the tungsten filaments to conduct linear stretching; and the vertical take-up reel is used for collecting the stretched tungsten filament. According to the invention, the production efficiency is high, multiple devices can be used in series, the occupied area is small, the problem of large occupied area of chain type straight pulling is solved, and the problem that tungsten filaments bent by a large turntable are easy to break is also solved, so that the quality of the produced tungsten filaments is effectively ensured.

According to the light sensation encoder and the audio equipment provided by the invention, light emitted by the reflective optocoupler is reflected or absorbed by setting the light absorption area and the light reflection area, so that the reflective optocoupler can output different signals based on the corresponding light absorption area or the corresponding light reflection area in the process that the outer knob drives the inner rotating disc to rotate; the relative positions between different reflective optocouplers and the reflective area or the light absorption area are different, so that waveforms output by different reflective optocouplers are different, and therefore, the rotation direction can be determined through different reflective optocouplers, and the knob function can be realized; meanwhile, interaction between the inner rotating disc and the reflective optocoupler is realized through light propagation, so that a structural member does not need to be arranged between the inner rotating disc and the reflective optocoupler, a rotating part and a signal output part are separately arranged, the printed circuit board is prevented from being stressed in the rotating process, and electrostatic interference on the printed circuit board is reduced.

The application provides a kind of bionic artificial stomach device based on electrostatic hydraulic drive and its application, belong to bionic medical instrument technical field.The device includes flexible bionic stomach cavity, composite peristaltic wave drive module including multiple electrostatic hydraulic drive units and programmable control module.Programmable control module applies high voltage electric signal to each electrostatic hydraulic drive unit according to preset timing, drive flexible bionic stomach cavity outer wall to produce continuous, distributed surface contraction deformation, to form annular advancing peristaltic wave propagating from fundus to antrum.The application realizes continuous surface driving of flexible interface through electrostatic hydraulic effect, solves the problem of unreasonable contact mode, discontinuous peristalsis and mechanical distortion in the prior art, improves the physiological relevance of in-vitro simulation of gastric mechanics, digestion process and drug transport.

The application relates to the technical field of machining, and particularly discloses a cutting method of a long-shaft part fixed-length cutting production line, the long-shaft part fixed-length cutting production line comprising a rack, a cutting machine, a first blocking mechanism and a conveying line, the first blocking mechanism comprising a mover, a first driver and a first baffle, the mover driving the first baffle to move, and the first driver driving the first baffle to move close to or away from the conveying line; the unloading mechanism comprising a turnover plate rotationally connected to the rack, and the conveying line comprising a roller conveying line, the roller conveying line comprising a plurality of rollers, the turnover plate being located between adjacent rollers and being capable of supporting the part; the method comprising the following steps: S1, end cutting of a base material; and S2, fixed-length cutting of the base material: the base material is conveyed to be blocked by the first baffle under the conveying of the conveying line, then the cutting machine is started, and the cutting machine cuts the base material to form a fixed-length part. The scheme is used to solve the problem of high labor cost in the prior art that manual transfer of the fixed-length cut part is needed.

This utility model belongs to the technical field of oil drilling and production equipment, specifically relating to a tubing scraping device. The device includes an upper connector and a scraping head, as well as a rotating mechanism connecting the upper connector and the scraping head. The rotating mechanism includes a support sleeve connected to the upper connector and a rotating body with one end anti-detached from the support sleeve and the other end connected to the scraping head. Track grooves are evenly distributed on the outer wall of the rotating body. A guide pin is provided at the end of the support sleeve away from the upper connector. The track grooves and guide pin are slidably engaged to allow the rotating body to rotate and axially displace relative to the support sleeve when the tubing scraping device is lifted or lowered. In use, by lifting or lowering the device, the track grooves of the rotating body slidably engage with the guide pin of the support sleeve. The guide pin slides along the track grooves, forcing the rotating body to rotate and generate axial displacement, thereby driving the scraping head to actively rotate and move axially. Compared with the prior art, which passively drives the scraping head through scraper friction, this effectively improves scraping quality and efficiency.

The present invention belongs to the technical field of battery stacking, and specifically is a fuel cell stacking device, including a pressurizing device, a cover component is provided at the bottom of the pressurizing device, a stacked battery is provided inside the cover component, a sealing component is symmetrically provided on the front and rear sides of the cover component, and the cover component includes a pressure cover, a partitioning slot is evenly provided in the middle of the inner wall of the pressure cover, and a guide component is provided inside the partitioning slot. The device pressurizes and fixes the stacked battery by the pressurizing device, and then inserts a tightening belt and reinforces the tightening belt to bundle the stacked battery together, and then releases the pressure of the pressurizing device, thereby ensuring that the tightening belt will not cause uneven force on the battery stack and cause misalignment and deflection during the process of bundling the stacked battery, thereby ensuring the quality of the finished stacked battery.

The hydraulic-driven hydrogen injection system comprises a hydrogen nozzle, a hydraulic supply assembly and a hydrogen supply assembly, the hydrogen nozzle comprises an injection valve, the injection valve comprises a valve body, a valve rod and an elastic reset piece, a piston head and a plugging head are arranged at the two ends of the valve rod correspondingly, and the valve body is provided with a hydrogen cavity, a piston cavity and a sliding groove channel; the sliding channel is connected between the hydrogen cavity and the piston cavity, the piston head is arranged in the piston cavity in a sealed and sliding mode to form a hydraulic control cavity, the hydrogen cavity is provided with an air inlet and an air outlet, the valve rod is in sealed and sliding fit with the sliding channel, a lubricating and sealing oil hole is formed in the side wall of the sliding channel, and the elastic reset piece acts between the valve rod and the valve body in the axial direction. The air outlet is plugged by the plugging head; the hydraulic supply assembly is communicated with the hydraulic control cavity and the lubricating sealing oil hole; the hydrogen supply assembly is connected with the gas inlet. The nozzle has good hydrogen sealing performance and low abrasion performance, bounce in the opening and closing process of the nozzle is reduced, and the service life of the nozzle is prolonged.

The utility model discloses a handheld hair cleaner convenient to replace a hair collecting roller, which comprises a fixing frame and the hair collecting roller, the fixing frame comprises a handle, a cross beam, a first front arm and a second front arm, and an elastic piece is arranged between the cross beam and the second front arm; a first connector is arranged on the inner side of the first front arm, and a second connector is arranged on the inner side of the second front arm. The hair collecting roller comprises a cylindrical supporting body and at least one hair collecting layer on the periphery of the cylindrical supporting body. The first end part and the second end part of the barrel-shaped supporting body are rotatably connected between the first interface and the second interface respectively; under the acting force of the elastic piece in the first direction, the first connector and the second connector can support the hair collecting roller; the second front arm is pulled in the opposite direction to overcome the first-direction acting force of the elastic piece, the second connector is far away from the first connector along with the second front arm, the second end of the hair collecting roller is separated from the second connector, and therefore the hair collecting roller can be separated from the fixed part, replacement operation is greatly simplified, and use convenience and efficiency are improved.

This invention relates to an adsorption tower and a gas nano-purifier. The adsorption tower includes an outer tube and an inner tube coaxially arranged within the outer tube. The outer tube has a first outlet on its wall. The inner tube includes an inlet section, an adsorption section, and a dust removal section connected sequentially from bottom to top. The inlet section has an inlet on its wall. The adsorption section is filled with adsorbent, and a first filter and a second filter are respectively provided at the connection points between the adsorption section and the inlet and dust removal sections. At least a portion of the sidewalls of the dust removal section is configured as a filter layer. Under purification conditions, the high-pressure gas to be treated enters the inner tube through the inlet, passes sequentially upwards through the adsorption and dust removal sections, enters the annular gap between the inner and outer tubes via the filter layer, and is discharged from the first outlet. Through this configuration, using a tube-in-tube structure with the outer and inner tubes coaxially arranged, the integration of the equipment is improved and its volume is reduced, achieving multi-stage purification of gas within a single component, including diffusion, deep adsorption, and precision dust removal.

This utility model relates to the field of cable tray technology and discloses a quick-assembly cable tray with a snap-fit ​​structure. The cable tray includes a cable tray with an installation mechanism at its right end. The installation mechanism includes a connecting frame fixedly connected to the right end of the cable tray, and a plug-in frame fixedly installed at the left end of the cable tray. A concave plate is fixedly connected to the inner side wall of the plug-in frame, and a rotating column is rotatably connected to the inner wall of the concave plate. A circular groove is formed at the top of the rotating column, and a carrying component is provided on the inner wall of the groove. A support plate is fixedly connected to the center of the rotating column, and an adjustment mechanism is provided at the right end of the plug-in frame. In this utility model, after releasing the bolt limit, rotating the rotating column drives the plug-in plate to move quickly and accurately embed into the square groove, eliminating the need for repeated alignment adjustments. This effectively avoids uneven force and misalignment caused by manual operation, improving installation efficiency and connection accuracy.

An automatic conveying device for continuous preheating in waste steel smelting comprises a waste steel apron machine, a hopper is arranged at the input end of the waste steel apron machine, a weighing turnover hopper is arranged on one side of the hopper, and a fuel gas cover is arranged above the weighing turnover hopper. The fuel gas cover is pushed by the electric-hydraulic push rod to move back and forth above the weighing overturning hopper and the hopper; a rotary vibration chute is arranged at the output end of the waste steel apron machine, and the rotary vibration chute rotates leftwards and rightwards and feeds preheated waste steel into different smelting furnaces; a movable dust collecting cover is arranged above the head of the scrap steel apron machine, the rotary vibration chute and the melting furnace, the upper portion of the movable dust collecting cover is connected with a dust remover assembly through a smoke pipe, and the output end of the dust remover assembly is communicated with the interior of a hopper of the scrap steel apron machine through an air duct. According to the automatic conveying device for continuous preheating in waste steel smelting, continuous conveying and preheating of a waste steel apron machine can be achieved, the smelting time is shortened, the production efficiency is improved, and meanwhile energy consumption is reduced.

The utility model discloses cleaning equipment for hydraulic cylinder production and processing, which comprises a shell and is characterized in that a water filtering opening is formed in the lower surface of the shell, a water tank is arranged below the shell, a first water pump is arranged on one side of the shell, a filtering box is fixed on one side of the first water pump, and a water outlet is formed in the other side of the first water pump. A rotating shaft is movably connected to the upper part of the filter box; according to the cleaning equipment for hydraulic cylinder production and processing, through the arrangement of the water tank, the first water pump, the filter tank, a second water pump, a pumping connecting pipe, a connecting pipe and a spray head, in the using process of the device, a switch of the second water pump is turned on, water in the water tank is pumped into the filter tank through the pumping connecting pipe, and a switch of the first water pump is turned on; water filtered by the filter tank is pumped into the connecting pipe, passes through the spray head from the connecting pipe to clean the hydraulic cylinder and then enters the water tank, so that the water can be recycled, the consumption of the water is reduced, and the cleaning cost is reduced.

The present application relates to elevator technology field, specifically relates to a kind of elevator with hidden emergency device of car, including the car in hoistway, installation port is opened in the thickness direction through in car side wall, and rotatingly installed with display device in car inner wall.Display device blocks installation port, and power supply assembly, controller and speed sensor are embedded in display device.Display device is electrically locked between car, and electrically locked is used to lock display device and car.Car outside is provided with anti-falling brake mechanism, and the rear side of display device close to installation port is hinged with one end of pull rod assembly, and the other end of pull rod assembly is connected with the locking assembly of anti-falling brake mechanism after passing through installation port, and anti-falling brake mechanism has working state and locking state.In locking state, locking assembly locks anti-falling brake mechanism, and anti-falling brake mechanism does not hinder the lifting of car.

The invention relates to the technical field of machining, in particular to a five-axis rotating CNC machining center which comprises a main body, a power device, rotating arms, a movable table, a fixed table and a transmission assembly, the fixed table is connected between the two rotating arms, the cross section of the fixed table is in an arc shape, an arc-shaped groove is formed in the lower portion of the fixed table, and the transmission assembly is arranged in the arc-shaped groove. Fixed teeth are connected to the upper portion of the inner wall of the arc-shaped groove, the transmission assembly comprises a plurality of fixed shells, a worm and a universal shaft, the multiple fixed shells are connected to the upper portion of the movable table in a front-back symmetry mode relative to the power device, and the worm is connected to the upper portions of the fixed shells and tangent to the lower portion of the fixed table. By arranging the worm, the worm and the fixed table form a worm and gear structure, so that the original stress on the rotating shaft is changed into direct stress on the fixed table, the stress on the rotating shaft is avoided, meanwhile, the stability during processing is improved by utilizing the self-locking characteristic of the worm and gear, and the error caused by vibration during processing is further reduced.

The utility model relates to the technical field of flaring machines, and discloses a positioning guide structure of a plastic composite pipe flaring machine, which comprises a support table, the bottom of the support table is slidably connected with a base, the inside of the base is rotatably connected with a rotating shaft, and the surface of the rotating shaft is sleeved with two groups of pushing components. A positioning plate is fixedly connected to the top of the supporting table, two sets of sliding blocks are slidably connected to the interior of the positioning plate, an adjusting assembly is fixedly connected to one end of each sliding block, and the pushing assembly comprises a rotating rod connected to the surface of a rotating shaft in a sleeving mode. According to the positioning and guiding structure of the plastic composite pipe expanding machine, the pushing assembly is arranged, the effect of stably adjusting the height of the expanding machine is achieved, when different pipe diameters are replaced, the supporting height can be rapidly and synchronously adjusted to ensure accurate alignment of a pipe opening and a mold, the center line of a pipe is strictly aligned with the center line of the expanding mold, and the production efficiency is improved. Flaring deflection or uneven stress caused by height dislocation is avoided, and flaring size consistency and sealing performance are guaranteed.

The utility model relates to the technical field of reinforcing devices, in particular to an anti-falling square column fast and easy reinforcing device which comprises a reinforcing device body, a square and round buckle arranged on one side of the reinforcing device body, a connecting steel column arranged on one side of the square and round buckle, a brake box installed on one side of the connecting steel column, a handle installed on one side of the brake box and a driving shaft installed at one end of the handle. A ratchet fixedly sleeves one side of the driving shaft, and a pawl is arranged on one side of the ratchet; the brake device has the beneficial effects that the square and round buckle, the U-shaped clamp and the brake box form a whole, so that the brake device is prevented from being lost in the construction process; 2, the quick-easy reinforcing device adopts a ratchet wheel and pawl braking mode, so that the eccentric stress and concentrated stress states of the quick-easy reinforcing device are avoided; and thirdly, the connecting steel column slides in a handle shaking mode of the quick-easy reinforcing device, so that the inconvenience of construction is avoided.

The anti-loosening bolt for the heavy goods shelf comprises a stud, a nut and a screw pad, a back shore sheet is arranged on one side of the screw pad, an adjusting piece and a screw are arranged on the side, away from the back shore sheet, of the screw pad, the adjusting piece comprises a spring cap and a pressure spring, a spring hole and a spring cap screw hole are formed in the screw pad, and the pressure spring is arranged in the spring hole. One end of the pressure spring penetrates through the spring hole to be movably connected with the back shore piece, and the spring cap is connected with the spring cap screw hole in a screwed mode. In the use process of the bolt, preliminary anti-loosening arrangement can be conducted through the gasket, in case that the bolt is loosened, the spring cap can be rotated to press the pressure spring without disassembling the bolt, energy is stored after the pressure spring is pressed, the jacking piece is pushed to one side of the bolt and a contacted object, and the bolt is prevented from being loosened. Relocking operation of the bolt and a contacted object is achieved, and anti-loosening inspection and maintenance of the bolt can be carried out in daily maintenance.

This invention discloses a protective garment for epicondylitis of the humerus based on an antibacterial and thermally conductive composite material, belonging to the field of medical protective gear technology. It includes a forearm support and an upper arm support, which are rotatably connected by an adjusting mechanism. The upper arm and forearm sleeves are 3D printed using an antibacterial and thermally conductive composite material, which comprises a polylactic acid matrix, a graphene oxide-silver nanoparticle-carbon nanotube ternary composite filler, and phase change microcapsules, with a thermal conductivity of 1.5-4.0 W·m. ‑1 ·K ‑1 With an antibacterial rate of ≥95%, it solves the problems of poor thermal conductivity, lack of antibacterial properties, and uneven heat therapy in existing protective gear.

The invention provides a multi-dimensional vibration platform with oppositely-arranged double-sandwich piezoelectric actuators and an excitation method of the multi-dimensional vibration platform, and belongs to the technical field of high-frequency vibration engineering and micro-nano machining.The vibration platform comprises a center platform, the two oppositely-arranged piezoelectric actuators, two end covers and two bolts, wherein the center platform is integrated with the tail end platform, the two flexible hinges and the two amplitude-change poles, and the center platform is slender and is in mirror symmetry about the longitudinal symmetry plane of the tail end platform. The piezoelectric actuator comprises a longitudinal vibration ceramic group, a bending vibration ceramic group around the Y axis and a bending vibration ceramic group around the Z axis, translation along the X / Y / Z axis and rotation around the Y / Z axis can be realized through in-phase or anti-phase excitation different combinations under the condition of not increasing extra driving channels, and five-degree-of-freedom high-frequency micro-vibration output can be achieved at most. The structure has high symmetry, low parasitic vibration, compact size and high integration, and is suitable for precise engineering scenes such as micro-nano processing, laser-assisted manufacturing, cell manipulation and active vibration suppression.

The utility model relates to the technical field of shoe sole wear resistance testing, in particular to a clamp damage prevention structure of a shoe sole wear resistance machine, which comprises a base, two sides of the top of the base are provided with clamping parts for clamping two sides of a shoe sole, the middle of the top of the base is provided with a supporting part for supporting the shoe sole, and the upper ends of the clamping parts are provided with clamping heads. A driving part is installed in the base close to the lower end of the clamping part, and the middle of the clamping part is rotationally connected with the base through a pin shaft. According to the clamp damage prevention structure of the shoe sole wear-resisting machine, the clamping components on the two sides of the top of the base are matched with the supporting component in the middle, and a shoe sole can be fixed in multiple directions. The driving component drives the lower end of the clamping component to move, the clamping head tightly presses the side face of a shoe sole according to the lever principle, the supporting height can be flexibly adjusted by combining the jacking component at the bottom of the supporting component, and accurate and stable fixing can be achieved for conventional shoe soles or shoe soles of irregular shapes and different sizes.

The utility model relates to the technical field of valve detection, in particular to a high-efficiency valve sealing performance detection device, which comprises a box body, a sliding block connected onto the box body in a sliding manner, a support mounted on the sliding block, a bottom plate mounted at the bottom end of the support, a guide rail fixedly connected onto the bottom plate, a sliding seat connected onto the guide rail in a sliding manner, and a bracket connected into the sliding seat in a sliding manner, the sliding seat is in threaded connection with a first rotary knob, the end of the first rotary knob abuts against the bracket, the sliding seat is in threaded connection with a second rotary knob, the end, facing the guide rail, of the second rotary knob is rotationally connected with an abutting block, and the abutting block abuts against the guide rail. The air outlet end of the air injection pipe is connected with one clamp. The horizontal position of the bracket is adjusted by sliding the sliding seat on the guide rail, and the height of the bracket is adjusted by sliding the bracket in the sliding seat, so that the bracket is adaptive to valves with different lengths or diameters, and the bracket can conveniently and rapidly perform preliminary positioning on the valves with different specifications.

This invention provides a three-trailer collaborative aircraft transfer method and system based on multi-sensor fusion. This invention relates to the field of aircraft ground support technology, specifically to a three-trailer collaborative aircraft transfer method based on multi-sensor fusion, applicable to short-haul aircraft ground transport to hangars. Through multi-sensor data fusion and multi-trailer collaborative control, it improves transfer accuracy, safety, and efficiency. The method specifically includes the following steps: system setup and sensor calibration; trailer attitude initialization and collaborative parameter configuration; real-time acquisition and preprocessing of multi-sensor data; multi-sensor data fusion and state estimation; dynamic path planning based on fused data; attitude error quantification and calibration based on complex statistics; multi-trailer collaborative driving control and traction distribution; real-time environmental monitoring and risk warning; precise docking at the hangar entrance and attitude fine-tuning; and parking and system review and optimization.

This utility model provides a cable fixing structure for the handover test of a photovoltaic power station transformer substation, belonging to the technical field of cable fixing structures. The cable fixing structure includes: a wedge-shaped metal ring assembly divided into at least three circumferential segments, each segment having a spiral groove on its outer surface; a high-friction flexible pad tightly fitted to the inner circumferential surface of each segment; and an integral elastic steel ring surrounding the outer side of the metal ring assembly, the inner circumferential surface of which has a protruding ridge that engages with the spiral groove. When the elastic steel ring rotates relative to the metal ring assembly, the protruding ridge slides along the spiral groove, driving each wedge-shaped metal ring segment to synchronously contract radially and synchronously generate axial displacement, thus forming a self-tensioning clamp. This solves the problem of loose cable joints and uneven stress during the handover test caused by the inability of traditional fixing structures to adaptively clamp according to changes in cable tension.

The invention relates to the technical field of lining trolleys, in particular to a lining trolley for tunnel construction, which comprises a trolley mechanism and a balancing mechanism mounted on the trolley mechanism, the vibrating mechanism is mounted on the trolley mechanism and is used for adjusting the vibrating time according to the thickness of the concrete; the balancing mechanism comprises an L plate, a measuring assembly, a detecting assembly, a releasing assembly, a sealing assembly, a conveying assembly and a closing assembly. The L-shaped plate is mounted on the trolley mechanism; the measuring assembly is installed on the L-shaped plate and used for measuring the thickness of poured concrete. The detection assembly is mounted in the measurement assembly and is used for moving according to the height of concrete; according to the concrete conveying device, when concrete reaches the specified height of the rotating plates, conveying of the concrete on the side is directly stopped, and when the rotating plates on the two sides are triggered, conveying of the concrete at the next height can be started, so that the situation that the input quantity difference of the concrete on the two sides is too large is avoided; and the supporting frame and the hydraulic cylinder are fractured due to balanced stress and the like.

The utility model relates to medical nursing technical field especially is injured patient changes dressings special body position support device, including thigh support board, shank support board and angle adjusting assembly, the thigh support board is connected through rotating mechanism between shank support board, the rotating mechanism includes the rotating block fixedly connected in the end of shank support board, the rotating block is rotated and is connected with the thigh support board through the pivot, and rotating mechanism realizes the flexible and stable rotating connection between thigh support board and shank support board through the cooperation of rotating block and pivot, this assembly can provide reliable rotating basis for body position angle adjustment, ensure that shank support board always keeps stable in the angle change process, avoid the patient's limbs to be uncomfortable due to rotating jam or instability, and the rigid connection design of pivot can bear the patient's limbs weight, prevent the connection slack after long -term use, further improve the support stability and service life of device.