40results about How to "Angle optimization" patented technology

The invention belongs to the field of development of oil and gas fields and particularly relates to a well pattern optimization method in a large-scale oil field development process. The well pattern optimization method comprises the following steps of: firstly, acquiring oil reservoir data, establishing a three-dimensional digital oil reservoir geological model and simulating an oil reservoir value; secondly, constructing a self-adaptive rule well pattern unit and generating a well pattern; thirdly, calculating economic benefits and evaluating an initial well pattern; fourthly, setting parameters to make preparations for well pattern optimization; fifthly, optimizing the unit and constructing parameters to generate a new well pattern by using a gradient method; and sixthly, calculating and evaluating economic benefits of the new well pattern and carrying out iterative operation until an optimal well pattern is generated. According to the well pattern optimization method disclosed by the invention, the well pattern is optimized by using the optimization theory, so that an optimal well pattern form can be found; the well pattern optimization is combined with injection-production optimization to optimize the optimal injection-production amount under different well pattern forms; the corresponding optimal total injection-production amount is obtained while the well pattern form is optimized; and well patterns with various rules can be optimized.

The invention discloses an omni-directional multifunctional wheelchair bed, and belongs to a wheelchair bed; the multifunctional wheelchair bed comprises a base framework, a chair back framework, a seat cushion framework, a wheelchair plate framework, a pedal framework and a lithium battery; the lower end of the chair back framework is hinged with the base framework, and the back end of the seat cushion framework is hinged with the base framework; the seat cushion framework is hinged with a shank plate framework, and the shank plate framework is hinged with the pedal framework; the front part of the seat cushion framework is further hinged with a pedal link rod, and the pedal link rod is hinged with the pedal framework; a first electric push rod is hinged between the chair back framework and the base framework, a second electric push rod is hinged between the seat cushion framework and the base framework, and a third electric push rod is hinged between the shank framework and the seat cushion framework; the lithium battery is installed in the base framework, and the lower part of the base framework is provided with four symmetrical mecanum wheel structures; both sides of the base framework are symmetrically provided with electric lifting handrail structures with adjustable height. The omni-directional multifunctional wheelchair bed can realize the conversion of the wheelchair and the bed, and the handrail height can be adjusted and moved in all directions.

The invention discloses an efficient solar photovoltaic power generation system. A solar panel 1 is fixed on a solar panel frame 2, the solar panel frame 2 and an upright post 10 are connected with each other, the lower end of the upright post 10 is provided with a base 13, a sunlight mirror system is further mounted nearby the solar panel 1 and comprises a mirror 1 and a mirror surface elevation angle adjusting mechanism, the mirror 3 is mounted on a mirror frame 4, and the mirror surface of the mirror 3 faces one side of the solar panel 1. Compared with a solar photovoltaic power generation system in the prior art, under the conditions of the same type, the solar panel with the same area and the same environment, the efficient solar photovoltaic power generation system has the advantages that the illumination received by the solar panel is stronger, and generated electric energy is stronger. The efficient solar photovoltaic power generation system can be used for improving various solar panel photovoltaic power generation systems in the prior art and greatly increasing the power generation efficiency and power.

The invention provides a multistage ultrasonic atomizing spraying device. The multistage ultrasonic atomizing spraying device comprises a gas inlet, a plurality of resonating tube structures, a hemispherical focusing structure, a gas-liquid mixing room, a liquid inlet, a guider and a spray nozzle device, wherein the hemispherical focusing structure is arranged in the gas-liquid mixing room. Afterpassing through the resonating tube structures, gas generates ultrasonic waves, and obtains supersonic speed, so that primary atomizing is accomplished in the gas-liquid mixing room. Through the hemispherical focusing structure, secondary atomizing is accomplished. Atomized liquid and gas are mixed to accomplish tertiary atomizing through the guider and the spray nozzle device. The multistage ultrasonic atomizing spraying device is simple in structure, is reasonable in design, adopts a multistage ultrasonic atomizing technology, is good in atomizing effect, and can obtain smaller fog drops with more uniform atomizing particle diameters.

The invention discloses a wheel section steel rim rolling machine. The wheel section steel rim rolling machine comprises a support, wherein the support is provided with a section steel rim rolling concave roller die which is connected with a power transmission device and is a fixed half concave die of a section steel rim; the support and the section steel rim rolling roller die are provided with clamping oil cylinders; the clamping oil cylinder is connected with a movable clamping half concave die of the section steel rim; the movable clamping half concave die is coaxial with the fixed half concave die; the support is also provided with a compression steel rim rolling convex roller die; and two ends of a roller shaft of the compression steel rim rolling convex roller die are connected with a movable support frame which is connected with a movable oil cylinder. The wheel section steel rim rolling machine has rational and compact arrangement and is suitable for rolling various wheel section steel rims, particularly for rolling concave and convex section steel rims, relatively thick section steel rims and large-diameter section steel rims.

The invention discloses a heat exchanger of a Cantor set fractal structure type. The heat exchanger comprises a heat exchange pipe bundle, a shell and pipe sheets, wherein the pipe sheets are arranged on the two sides of the shell, and the two ends of the heat exchange pipe bundle are fixed on the pipe sheets and penetrate through the pipe sheets. The heat exchange pipe bundle is at least one setof parallel pipe bundles with diameter consistent with characteristics of the Cantor set fractal structure. According to the invention, the shell space is fully utilized to distribute the heat exchange pipe bundles to the maximum extent in order to increase the heat exchange area. Meanwhile the heat exchange pipe bundles are distributed in a multi-stage staggered way, and the sections of the heatexchange pipe bundles are periodically changed, so that the field synergy of flowing heat exchange is greatly enhanced, the heat effectiveness of the heat exchanger is enhanced to the maximum extent,and the goals of efficiently exchanging heat and saving energy are achieved.

The reciprocating motion compressor includes sealed container, reciprocating motor, frame, compressor, and lubricant oil supplying assembly. The sealed container has lubricating oil inside the bottom, the frame is supported elastically inside the sealed container, and the lubricant oil supplying assembly supplies the compressor with lubricating oil and consists of lubricating oil cylinder vibrating together with the frame, lubricating oil piston inserted inside the lubricating oil cylinder to slide and pump out lubricating oil and lubricating oil sucking pipe. The baffling part inside the sealed container stops the foreign matter deposited in the lubricating oil inside the sealed container from being sucked to the lubricant oil supplying assembly and the compressor, and this can avoid wear of the compressor and raise the quality and reliability of the reciprocating motion compressor.

The invention discloses a heat exchanger, which comprises a heat exchanging pipe bundle, a shell and pipe plates. The pipe plates are positioned at two sides of the shell. The two ends of the heat exchanging pipe bundle are fixed on the pipe plates and pass through the pipe plates. The heat exchanger is characterized in that the section area size and the distribution of the heat exchanging pipe bundle satisfy Sierpinski carpet type fractal structural characteristics; and the fractal grade number is 2-8 grades. According to the heat exchanger disclosed by the invention, the space of the shell is sufficiently utilized to arrange the heat exchanging pipe bundle maximally so that the heat exchange area is increased; simultaneously, the heat exchanging pipe bundle is in multi-grade array arrangement; the section of the heat exchanging pipe bundle is periodically changed in the shell; the fluid heat exchange field cooperativity is greatly increased; the heat effectiveness (heat exchange quantity / pumping work) of the heat exchanger is increased maximally; and the purposes of effectively exchanging heat and saving energy are achieved.

The invention discloses a furrow opener with high stability for potato sowing. The furrow opener includes a strip-shaped plate, a sliding groove is formed in the upper surface of the strip-shaped plate, sliding blocks are slidingly connected in the sliding groove, a driving mechanism is arranged on the side faces of the sliding blocks, and a circular hole is formed in the side face of each slidingblock and movably clamped to a screw of the driving mechanism; an adjusting device is arranged on the upper surfaces of the sliding blocks, a furrow opener body is arranged on the lower surface of ascrew bolt of the adjusting device, first clamping pieces are symmetrically arranged on the side face of the furrow opener body, and first rotating shafts are inserted into the first clamping pieces.The furrow opener with high stability for potato sowing is convenient to install, multiple furrows can be opened at the same time, the spacing of the furrow opener body and the effective height of thefurrow opener body can be adjusted, the size and depth of opened furrows can be adjusted, more convenience is provided for opening the furrows in different terrains, the operation is simple, and moreconvenience is provided for use.

The present invention relates to motor vehicle damper technology, and the motor vehicle front wheel damper consists of main damping part, subsidiary damping part and damping spring. The subsidiary damping part is installed on the main damping part, and the damping springs include the damping spring installed on the subsidiary damping part and the subsidiary damping spring installed on the main damping part. Springs in different rigidities are connected parallelly for different loads. Installing subsidiary damping spring onto the subsidiary damping part is favorable to producing some angle between the main damping part and the subsidiary damping part to control the jumping frequency and amplitude of the front wheel under different loads and in various roads.

The invention relates to the technical field of oil and gas well through-tubing perforation operation, in particular to a chain-type body-free perforator. The chain-type body-free perforator includesat least one bullet holder, wherein perforating bullets are installed on the bullet holders, the perforating bullets comprise shell bodies and shell covers, the shell bodies are connected with the shell covers to form bullet shells with sealed inner cavities, the inner cavities of the bullet shells are filled with explosives, and the explosives are compacted through shaped charge liners installedin the inner cavities of the bullet shells. The chain-type body-free perforator has the beneficial effects that the structures of the bullet shells are simple, disassembly and assembly are convenient,end face sealing is carried out by the shell covers, connection and sealing of the shell bodies and the shell covers are realized through extrusion deformation force between the shell bodies and theshell covers, and performance is reliable; the independent bullet holders serve as carriers of the perforating bullets, the number and the phase position of the perforating bullets are flexibly set conveniently according to needs, all the bullet holders are arranged independently and are not prone to being clamped in casing pipes, moreover, the bullet holders can be broken into fine particles completely after perforation of the perforating bullets, after perforation is finished, the bullet holders do not need to be taken out again, occurrence of the well jamming accident is avoided, and safetyperformance is improved.

The invention discloses trimming forceps for electric power overhaul. The trimming forceps for electric power overhaul comprises a first forceps head and a second forceps head; a hook head is arrangedat one end of each of the first forceps head and the second forceps head; and peeling teeth are arranged between the first forceps head and the second forceps head. A wire groove is provided, so thatthe included angle between a first handle and a second handle is changed; the position of a fixed buckle can be changed according to the hand size of different people, a screw rod on the surface of the fixed buckle is loosened, the fixed buckle slides into a proper round mouth and the screw rod rotates to fix the fixed buckle; when the wire is trimmed, the hand presses the first handle and the second handle, a first rotating rod and a second rotating rod rotate by taking a movable rotating shaft as an axis; and after the wire is cut off or the wire is clamped, the first handle or the second handle is loosened, two extruding sleeve edges are mutually separated through the double elastic force effect of a spring and the extruding sleeve edges, and the first rotating rod and the second rotating rod avoid too large included angle between the first handle and the second handle.

The invention discloses a pushing platform of a dustproof type car inspection liquid crystal display. The pushing platform comprises two supporting plates which are mutually parallel. At least two flat plates are installed between the two supporting plates, four wheels are installed at the bottom of the flat plate located on the lowest portion, the flat plate which is located on the uppermost portion is connected with the supporting plates through rotating shafts, locating rods are installed on the side faces of the flat plate on the uppermost portion, locating grooves matched with the locating rods are formed in the inner sides of the supporting plates, and a transparent outer cover is installed on the top of the flat plate on the uppermost portion. A rotatable liquid crystal display containing platform is adopted, the liquid crystal display is fixed to the flat plates through the outer cover, and therefore the dropping prevention purpose can be achieved. External dust can be shielded through the transparent outer cover, and the purpose of protecting a screen of the display is achieved.

The invention relates to the technical field of polishing equipment and provides a polishing machine. The polishing machine comprises a rack, a jig device, a polishing device, an angle adjusting lifting device and a translation device. The jig device comprises a supporting frame which is used for supporting an object to be polished and can rotate by taking a first axis as a shaft, and the supporting frame is arranged on the rack; the polishing device comprises a polishing head which rotates by taking a second axis as the shaft and is used for polishing the object to be polished supported on the supporting frame; the angle adjusting lifting device is used for adjusting the included angle between the first axis and the second axis and driving the polishing device to move relative to the rackin the Z-axis direction; the translation device is used for driving the polishing device to move relative to the rack in the X-axis direction and the Y-axis direction. The translation device can drive the polishing device to move along the X-axis and the Y-axis directions and the angle adjusting lifting device drives the polishing device to move along the Z-axis direction, therefore the polishingdevice can achieve movement in three directions of X-axis, Y-axis and Z-axis under the driving of the translation device and the angle adjusting lifting device.

The invention provides a syringe for a FASANNELLA eyelid plasty surgery. The syringe comprises a body, a syringe needle and a syringe needle, and an infusion mechanism. The puncture needle is connected with the infusion mechanism, and an inner cavity of the puncture needle is communicated with the infusion mechanism; the adjusting mechanism is arranged on the body, and the adjusting mechanism is connected with the puncture needle; the locking mechanism is arranged on the body; when a medicament is injected, the adjusted puncture needle is punctured into the eyelids, the body is attached to the forehead skin of a patient, and the anesthetic is injected into the eyelids through the body, the infusion mechanism and the puncture needle in sequence; the device has the beneficial effects that the angle of the puncture needle can be effectively and conveniently adjusted through the arranged adjusting mechanism, an included angle can be formed between the puncture needle and the body during injection, that is, the body can be attached to the skin of the forehead of a patient, the puncture needle punctures and enters the eyelids, and the puncture effect is good. A physician does not need to hold the body in the air for a long time, and operation of the physician can be effectively facilitated.

The invention relates to an electric lifting armrest structure, belonging to an armrest structure. The electric lifting armrest structure comprises a fixing framework, an armrest framework, first connecting rods, second connecting rods, third connecting rods, fourth connecting rods and an electric push rod, wherein the first connecting rods are hinged to the armrest framework, the first connecting rods are hinged to the fixing framework, the second connecting rods are hinged to the armrest framework, the second connecting rods are hinged to the fixing framework, the third connecting rods are hinged to the second connecting rods, the third connecting rods are hinged to the fourth connecting rods, the fourth connecting rods are hinged to the fixing framework, the push rod end of the electric push rod is simultaneously hinged to the third connecting rods and the fourth connecting rods, the tail end of the electric push rod is hinged to the lower part of the fixing framework, the fixing framework, the armrest framework, the first connecting rods and the second connecting rods form a parallelogram-shaped connecting rod mechanism, and the second connecting rods, the third connecting rods, the fourth connecting rods and the fixing framework form a trapezium-shaped connecting rod mechanism. The electric lifting armrest structure has the advantages of simple design, operation convenience, strong adjustability and good stability.

The invention discloses a waterproof charging pile for a new energy automobile. The waterproof charging pile comprises a main body shell, a hose and a vertical rod, a cross arm is mounted on the rightside of the main body shell, a pin rod is arranged in the cross arm, the main body shell is in pin connection with the cross arm through the pin rod, a door is fixed on the right side of the cross arm; the cross arm and the door leaf are welded, a clamping piece is arranged in the door leaf, glass is arranged in the clamping piece, the glass is in threaded connection with the door leaf through the clamping piece, a blade is installed at the rear end of the vertical rod, the vertical rod is located in the main body shell, and an inner sliding groove is formed on the left side of the blade. Through the arrangement of the main body shell, the pin rod, the cross arm and the door leaf, the door leaf can rotate along the exterior of the pin rod through the cross arm, an installation space for reducing dust entering and preventing external water from interfering with work of the charging pile is formed between the door leaf and the main body shell, and the influence of the external environment on internal components of the charging pile is reduced.

The invention relates to a protective fence structure for municipal engineering, and relates to the technical field of municipal engineering. The protective fence structure comprises a plurality of connected fence units, each fence unit comprises a first rod body and a second rod body which are vertically arranged, a plurality of first folding parts and second folding parts which are arranged in parallel at intervals are connected between the first rod bodies and the second rod bodies, and a rotary connecting part is connected between each first folding part and each second folding part. According to the protective fence structure, the included angle can be formed between the adjacent first folding parts and second folding parts through the rotary connecting parts, so that the fence structure can easily adapt to the shape of the periphery of a construction site, then the position reserved for passing of pedestrians and vehicles can be enlarged, and adaptability is good.

The invention relates to a solar lamp post which comprises a lamp post body. The lamp support is fixed on the lamp pole and is used for supporting a lamp; the motor supporting rod is fixed on the lamp pole and transversely extends; the middle part of the triangular motor supporting seat is fixedly arranged at the transverse outer end of the motor supporting rod, and the motor supporting seat comprises three vertexes and connecting rods for connecting the adjacent vertexes; the solar cell panel is provided with three ball sockets; by sending a solar cell panel azimuth angle adjusting instruction to each programmable linear motor, the solar cell panel azimuth angle can be automatically, accurately and conveniently adjusted in three degrees of freedom, so that the included angle between the solar cell panel and sunlight is kept optimized, and photoelectric conversion output as large as possible is obtained; through the structure of the motor supporting seat and the pivotable cooperation of the three programmable linear motors and the three pairs of spherical parts-ball sockets of the solar cell panel, the stability in the azimuth angle adjusting process can be improved.

The invention discloses a multi-channel sectional-type bar screen comprising a frame, a screen surface, a vibrator and an under-screen hopper. The screen surface, the vibrator and the under-screen hopper are fixed on the frame; the screen surface is fixed on a screen frame which is connected with the vibrator; and the under-screen hopper is arranged below the screen frame which comprises a first lateral plate, a second lateral plate and a middle lateral plate separating the space between the first lateral plate and the second lateral plate into more than two channels. The invention has simpleand compact structure, low cost, convenient disassembly, great processing capability and high screening efficiency and can realize the scaled multi-channel sectional-type bar screen of a screen machine.

The invention provides a coal underground gasification simulation experiment system. The coal underground gasification simulation experiment system comprises a gas injection device, a coal gasification device and a gas collection and treatment device which are sequentially connected through pipelines; the coal gasification device is used for combusting and gasifying a coal sample in the coal gasification device under the simulated formation condition by using oxygen and water vapor injected by the gas injection device so as to generate synthesis gas; the gas collection and treatment device is used for purifying and separating the synthesis gas; and the side wall of a gasification container of the coal gasification device is provided with a plurality of injection-production holes located in the same horizontal plane, and the injection-production holes are used for insertion of injection-production pipes so as to supply or output the gas to the coal sample. During an experiment, the two injection-production holes can be selected according to the included angle between two horizontal wells in the horizontal direction, the injection-production pipes are inserted into the two injection-production holes respectively for the gasification simulation experiment, the condition that the coal underground gasification efficiency is highest when the included angle between the two horizontal wells in the horizontal direction is the required angle can be determined through multiple experiments, and then the included angle between the two horizontal wells is optimized.

The invention relates to a guideboard indicating device for municipal engineering. The device comprises a supporting column which is vertically arranged, a lamplight indication guideboard is arrangedon the body of the supporting column; a photovoltaic power generation system for supplying power to the lamplight indication guideboard is arranged at the upper end of the supporting column; the photovoltaic power generation system comprises a photovoltaic panel group and an adjusting mechanism. The photovoltaic panel group comprises two photovoltaic panels; when the light receiving surfaces of the two photovoltaic panels are attached, the two photovoltaic panels are marked as an A1 state photovoltaic panel group; when the light receiving surfaces of the two photovoltaic panels are positionedin the same plane, the two photovoltaic panels are marked as A2 state photovoltaic panel groups; an adjusting mechanism is used for adjusting the mutual conversion between the A1 state photovoltaic panel group and the A2 state photovoltaic panel group; and an included angle between the light receiving surface of the A1 and / or A2 state photovoltaic panel group and the horizontal plane is adjusted.According to the invention, the adjustment is convenient, the folding and fitting of the light receiving surfaces of the two photovoltaic panels can be realized, the protection function of the light receiving surfaces of the photovoltaic panels is realized, the adjustment of the included angle between the light receiving surfaces of the photovoltaic panels and the horizontal plane is also realizedaccording to requirements, the adjustment and control are convenient, and the use requirements are met.

The invention discloses a corrugated roll adopting a corrugated structure capable of reducing gram weight of paper without reducing paperboard intensity, and relates to corrugated rolls for processingcorrugated boards. The corrugated roll adopting the corrugated structure, capable of reducing gram weight of the paper without reducing paperboard intensity is characterized in that a second corrugated top arc r2 is introduced in the corrugated top arc of the corrugated roll adopting the corrugated structure. Through the adoption of the corrugated roll adopting the corrugated structure capable ofreducing gram weight of paper, without reducing the paperboard intensity disclosed by the invention, the service life of the corrugated roll can be greatly prolonged; stressing state and impacting state of corrugated core paper during meshing shaping are improved; the corrugated core paper is in wider, continuous and gentle contact with the corrugated top arc, so that damage during shaping is reduced; the corrugated contact state is improved, the tension factor in a meshing region is reduced, and damage to the corrugated core paper in the meshing region caused by continuously-increased tension is reduced; the corrugated roll is well positioned, and deviation and vibration are reduced; the corrugated waist length of the corrugated paper is increased, and the paperboards are firm; the paperutilization rate of the corrugated roll is reduced; under the premise that the glue applying capacity is constant, the bonding region is wider, and adhering is more effective; the state of impressionof the paperboards can be obviously improved; and for low-gram weight corrugated core paper, the beneficial effects of the corrugated roll adopting a corrugated structure are better.

The invention discloses a fruit and vegetable display cabinet with an illumination function. An evaporator is installed in a refrigeration cabinet body and connected with a compressor through a liquid inlet valve, the compressor is connected with a condenser through a liquid outlet valve, and the condenser is connected with the evaporator through a throttle valve; the inner side of the back side face and the inner side of the top face of a display cabinet body are provided with air supply jackets, an end opening of the air supply jacket arranged on the top face serves as an air supply outlet of an air curtain, an air supply fan is installed at the bottom end of the air supply jacket arranged on the back side face, the lower portion of the front side face of the display cabinet body and the space containing the evaporator are provided with air return jackets, the top end of the air return jacket arranged on the lower portion of the front side face is provided with an air return inlet of the air curtain, an air return fan is installed at the air return inlet of the air curtain, LED lamp tubes are installed on the top face of the display cabinet body and under shelves respectively, and small air supply holes are uniformly formed in the side wall of the air supply jacket arranged on the back side face. According to the fruit and vegetable display cabinet, the included angle and the speed of the air inlet and the air outlet of the air curtain are optimized, and disturbance of air outside the display cabinet is reduced.

The invention discloses a tension feedback robot joint connection mechanism, comprising a chassis, the upper surface of the chassis is rotatably connected with a rotating plate, and the upper surface of the rotating plate is fixedly connected with a frame, the frame is L-shaped and located The middle part and the top of the frame are respectively equipped with a lifting mechanism and a clamping mechanism. The beneficial effect of the present invention is: through the interconnection of multiple articulated arms and transmission arms, only one cylinder needs to be used to expand and contract to drive each component to move, and the interaction between them is constant. Shrinkage, so as to achieve clamping, without worrying that the joints will be affected by the obstruction of the line, it is safer and more reliable; by setting an adjustable lifting mechanism, it is convenient to support the workpiece, which is suitable for workpieces of different heights. Thread grooves are set at the bottom to facilitate the adjustment of the orientation of the entire device; by setting a cylinder on one side of the seesaw, the angle between the entire joint part and the support plate can be adjusted to expand the scope of application.

The invention discloses an anesthesia support with a recognition function. The anesthesia support comprises a main shaft, storage mechanisms, a supporting mechanism, a scanner, a second fixing rod fixedly connected with the bottom of the main shaft, and a first fixing rod fixedly connected with the bottom of the second fixing rod through an angle adjusting mechanism, wherein a fixing mechanism which is connected with outside and used for fixing the first fixing rod is arranged at the bottom of the first fixing rod. A shaft rod and storage grooves are all made of soft metal cable materials, the height and angle of an anesthesia tube can be adjusted, and due to the arrangement of a top supporting mechanism and a scanner, medicines can be quickly recognized and uploaded to a computer host conveniently; and medical staff only need to fill in metering, the workload of the medical staff is relieved. The first fixing rod and the second fixing rod are connected through the angle adjusting mechanism, the included angle between the first fixing rod and the second fixing rod is convenient to adjust, the application range is wide, the first fixing rod is connected with the outside through the fixing mechanism, and fixing of the device is convenient, so that the anesthesia support is firmly fixed and is prevented from being broken.

The invention relates to a plastering trowel capable of conveniently filling and applying wall cement. The plastering trowel comprises a handle and a trowel plate and is characterized in that the handle is fixedly mounted on the upper surface of the trowel plate through a support rod; a support plate is fixedly mounted at the rear end of the trowel plate; clamping rotary shafts are arranged on theleft side and the right side of the trowel plate, and a limit rotary shaft is arranged at the front end of the trowel plate; a clamping plate sleeves each clamping rotary shaft, a limit plate is arranged on the limit rotary shaft, a squeezing plate is slidably arranged on the support rod, and the squeezing plate is wider than the trowel plate; the upper edge of the inner plate surface of each clamping plate protrudes towards the interior of a storage box to form a wedge; a transmission rod is mounted on the squeezing plate in a hinged manner, and the upper end of the transmission rod is hinged to a driven handle arranged on the handle. The plastering trowel is novel in structure, capable of removing cement transferring frequency, capable of reducing the workload of construction workers, capable of effectively increasing the efficiency of wall cement applying and capable of effectively preventing cement dripping and harm to the skin.