66 results about "Interval distribution" patented technology

The invention relates to an echo signal detection method for an ultrasonic flowmeter and related equipment, and the method comprises the steps: obtaining an envelope of an echo signal, determining a plurality of envelope detection values through a plurality of preset proportions corresponding to the maximum envelope value, calculating a first time interval between signal nodes corresponding to each envelope detection value, and determining a first time interval between the signal nodes corresponding to each envelope detection value; judging whether the overall form of the envelope is abnormal or not; if the envelope value is normal, dividing to obtain a main envelope section and an auxiliary envelope section based on the change trend of the envelope value and the position of the maximum envelope value; for the main envelope section, judging whether amplitude abnormity exists or not according to amplitude change characteristics, and judging whether periodic abnormity exists or not according to second time interval distribution characteristics between adjacent extreme values; and extracting signal fluctuation characteristics in the auxiliary envelope section to judge whether abnormal fluctuation exists or not. According to the method, the adaptability of the detection method is improved, and the detection result accuracy is improved.

The utility model discloses a crown spring structure which comprises a first spring ring, a second spring ring and a plurality of spring strips distributed at intervals, the first spring ring and the second spring ring are connected with the two ends of the spring strips respectively, and an included angle exists between each spring strip and the first spring ring or the second spring ring. The spring strip is provided with a first convex area and a concave area, and the first convex area and the concave area are arranged in opposite directions. The utility model also discloses a connecting terminal, a connector and energy storage equipment. Through cooperative arrangement of the first spring ring, the second spring ring and the spring strip, in use, the pin is inserted into the crown spring structure, the number of contact points of the pin and the crown spring structure is increased through arrangement of the inner concave area, and the number of contact points of the crown spring structure and an external conduction component is increased through arrangement of the first outer convex area. Meanwhile, the positive force between the first convex area and the contact pin is increased, the resistance is reduced, the problem of temperature rise is solved, and the reliability and the current-carrying capacity of the crown spring structure are further improved due to the increase of the number of the combined contacts.

The utility model relates to the technical field of morchella esculenta production, and discloses a morchella esculenta culture shelf which comprises two supporting plates which are distributed up and down at an interval and a side shelf with the two ends fixedly connected with the supporting plates, culture assemblies for placing morchella esculenta stock seeds are arranged between the supporting plates, and the two culture assemblies are arranged in a front-and-back symmetry mode. The two culture assemblies are supported and fixed through the supporting assemblies and the supporting plates. The stock culture shelf has the advantages that a one-groove culture mode is adopted, the placing space of the culture shelf is reasonably utilized, stock seeds cannot be stacked when placed and cultured, taking out or placing operation of each stock seed becomes simple and fast, meanwhile, the air circulation on the shelf is guaranteed, and meanwhile the culture shelf is convenient to use. And the hypha development condition of the stock seeds can also be visually observed, so that the stock seeds are convenient to culture, load and take, and the orderliness and efficiency of production are improved.

The present application relates to the field of road construction, in particular to a kind of building site planning marking equipment, including hand push rod, shell and walking wheel;Walking wheel has two, coaxial and interval distribution, shell is located between two walking wheels, respectively by two driving members installed in shell drive rotation;Shell bottom is equipped with nozzle;One end of hand push rod is rotatably installed in shell, for pushing shell to move;Walking wheel is provided with multiple thimbles around its circumference, and the thimbles extend radially and can move radially;Trigger assembly is arranged between hand push rod and walking wheel, when the moving speed of operator pushing hand push rod and the moving speed of walking wheel do not match, the thimbles are moved to flush with the outer circumferential surface of walking wheel, increase the moving resistance of walking wheel, at the same time, remind operator to adjust the moving speed of pushing hand push rod, and then reduce the influence on shell movement, improve the accuracy of marking.

The automatic concrete fishing bucket comprises an inner cylinder and an outer cylinder which are coaxially arranged in a sleeving mode and can rotate relatively, and slurry inlets distributed in the circumferential direction at intervals are formed in the bottoms of the inner cylinder and the outer cylinder; a shaft hole is formed in the center of the bottom of the outer cylinder, a shaft penetrating through the shaft hole is arranged in the center of the bottom of the inner cylinder, a hoop abutting against the bottom of the outer cylinder is arranged on the shaft in a sleeving mode, the hoop is provided with a shifting rod, and the shifting rod is located between the two adjacent guide plates to shift the outer cylinder to rotate, so that the slurry inlets of the inner cylinder and the outer cylinder are opened and closed. The slurry inlets are overlapped or staggered through relative rotation of the inner cylinder and the outer cylinder, the guide plate guides concrete to smoothly enter the inner cylinder, and the efficiency is improved; the hoop prevents the outer cylinder from being axially disengaged; during forward rotation, the slurry inlets coincide to achieve continuous feeding, during reverse rotation, the slurry inlets are staggered and completely closed, concrete leakage in the lifting process is prevented, pile head concrete cleaning is achieved, and the construction efficiency is improved.

The utility model relates to the field of glass conveying equipment, and discloses a flexible shaft conveying device which comprises a plurality of flexible shaft bodies distributed at intervals and a transmission mechanism used for driving all the flexible shaft bodies to rotate synchronously, and the transmission mechanism comprises a power connecting piece and a driving piece used for driving the power connecting piece to rotate. The two ends of each flexible shaft body are provided with power connecting pieces synchronously rotating with the flexible shaft bodies, the axes of the power connecting pieces coincide with the axes of the flexible shaft bodies in the straightening state, and the driving pieces drive the power connecting pieces at the two ends of the flexible shaft bodies to synchronously rotate. The two ends of the flexible shaft are driven to rotate synchronously, the situation of transmission delay of the flexible shaft is greatly improved, the problem that glass deviates from a conveying roller way in the conveying process of the flexible shaft can be avoided, and therefore the forming precision and the yield of the glass are improved.

The utility model discloses a medicine bottle distributing device which comprises a star-shaped bottle distributing wheel, a rotating shaft and a magnetic coupler. A plurality of notches distributed at equal intervals are formed in the outer circumference of the star-shaped bottle distributing wheel, and the star-shaped bottle distributing wheel has a rotating state and a static state; the rotating shaft penetrates through the central position of the star-shaped bottle separating wheel and moves synchronously with the star-shaped bottle separating wheel; the magnetic coupler is connected with the rotating shaft; when the number of the medicine bottles in the medicine bottle queue reaches a preset value, the star-shaped bottle distributing wheel is in a rotating state under the thrust action of the medicine bottle queue, and when the number of the medicine bottles in the medicine bottle queue does not reach the preset value, the star-shaped bottle distributing wheel is in a static state under the action of the magnetic coupler. By means of the design, the phenomenon that when the number of the medicine bottles in the medicine bottle queue does not reach the preset numerical value due to shutdown of the conveying line, the medicine bottles continue to approach the star-shaped bottle separating wheel due to the inertia effect, and consequently the medicine bottles pass through the star-shaped bottle separating wheel is effectively avoided, the distance between the separated medicine bottles is not affected, and the bottle separating effect is improved.

The utility model relates to the technical field of anti-rust devices, and provides an anti-rust device with gas-phase anti-rust tablets, according to the design, rotating columns which are distributed at equal intervals and can be used for supporting objects to be subjected to anti-rust processing are arranged at the top of a storage bracket, and when the objects are placed at the tops of the rotating columns and are subjected to anti-rust gas volatilization processing through an anti-rust tablet storage box, the rotating columns can be used for supporting the objects to be subjected to anti-rust processing; the motor can be started to drive the half-tooth columns to rotate at a constant speed, so that the ring-back tooth seats meshed with the half-tooth columns drive the transverse rod to horizontally move on the side face of the storage bracket in a reciprocating mode; the object is driven to horizontally move back and forth within a certain stroke above the object placing bracket, at the moment, it can be guaranteed that the contact area of the rotating column and the bottom of the object is not fixed, and therefore the problem that the bottom of the object is in static contact with the rotating column, and consequently a gas volatilization blind area occurs is solved.

The utility model relates to the technical field of gears, in particular to a gravity center eccentric gear which comprises a gear body and gear teeth distributed at intervals in the circumferential direction of the gear body, a shaft hole used for installation of a transmission shaft is formed in the center of the gear body, a hub surrounding the shaft hole is formed in the middle of one side of the gear body in a protruding mode, and an offset groove is formed in the end face of at least one side of the gear body. The offset grooves are used for changing the weight ratio uniformity during rotation of the gear, so that the center of the gear deviates from the central axis of the gear during rotation, the rotation gravity center of the gear is changed by directly forming the offset grooves in the gear body, unbalanced force and vibration generated during deflection transmission are counteracted, the gear is convenient to prepare, and materials for manufacturing the gear are reduced.

The utility model relates to the technical field of locks, in particular to a multipoint linkage tensioning and locking crank lock system which comprises a crank lock, a connecting rod, a plurality of steering parts and a plurality of tensioning locks. The tensioning locks are distributed at intervals along the length extension direction of the connecting rod; the crank lock comprises a crank lock body, a rotating piece and a handle; the rotating piece is rotatably arranged on the crank lock body and is movably connected with the connecting rod through one of the steering pieces; the handle is arranged on the rotating piece; each tensioning lock comprises a tensioning lock body, a tensioning lock core and a tensioning lock tongue; the tensioning lock core is arranged on the tensioning lock body and is movably connected with the connecting rod through one steering piece; and the tensioning spring bolt is arranged on the tensioning lock core. The tensioning locks are in linkage with the connecting rods through the steering pieces, and compared with a traditional mode that linkage is conducted through gears and racks, the structure is simple, and cost is reduced; in addition, the tensioning lock tongues in the tensioning locks can press the doors and windows tightly, and the leakproofness and the safety are improved.

The utility model discloses a coal mill lining plate, the mounting surface of the lining plate and the contact surface of a coal mill cylinder are corresponding cambered surfaces, the surface opposite to the mounting surface is a working surface, the lining plate further comprises a first bulge and a second bulge which are formed on the working surface and are distributed at an interval, the first bulge is positioned at the ball end of the working surface, and the second bulge is positioned at the ball end of the working surface. The second protrusion is located between the first protrusion and the back ball end of the lining plate, and the crest height of the first protrusion is larger than that of the second protrusion. A first working section is formed between the first protrusion and the second protrusion, and a second working section is formed between the second protrusion and the end face of the back ball end of the lining plate. The coal mill lining plate provided by the utility model can improve the kinetic energy of the lining plate for doing work with the ball, improve the grinding efficiency, improve the output of the mill and reduce the energy consumption, and can be applied to the grinding of coal with high moisture content.

The utility model discloses a high-safety wood slotting device, and relates to the technical field of wood processing, the high-safety wood slotting device comprises a processing table, a mounting plate and a moving plate, the lower surfaces of the mounting plate and the moving plate are rotatably connected with matching rollers which are distributed at equal intervals, and the lower surfaces of the mounting plate and the moving plate are rotatably connected with tensioning rollers; a conveying belt is arranged on the tensioning roller in the mounting plate, a matching belt is arranged on the tensioning roller in the moving plate, a driving motor is fixedly connected to the lower surface of the machining table, and the output end of the driving motor is fixedly connected with the tensioning roller on the mounting plate. According to the wood clamping device, the electric push rod shrinks to drive the connecting frame to move, so that the movable plate is driven to move, wood is clamped through the matching belt and the conveying belt, the matching roller supports the matching belt and the conveying belt, the clamping effect on the wood is improved, the driving motor drives the tensioning roller on the mounting plate to rotate, and therefore the conveying belt is driven to rotate; therefore, wood is driven to move.

The utility model discloses a multi-finger independent driving type mechanical arm which comprises a finger assembly, a driving assembly and a driving assembly. The finger assembly comprises a plurality of at least two fingers distributed at intervals in the height direction. The grading transmission assembly comprises a plurality of supports corresponding to the finger assemblies, each support comprises a first end and a second end, the first ends are arranged on the same horizontal datum plane in a coplanar mode, the second ends are located at different height levels respectively, and the second end of each support is connected with the corresponding finger; the driving assembly comprises a plurality of driving sources which are horizontally arranged on the same mounting plane side by side, and the power output ends of the driving sources are located on the same horizontal plane and are in driving connection with the first ends of the corresponding supports; the driving force of the driving source is transmitted to the fingers at different height levels through the grading transmission assembly. By the adoption of the scheme, the thickness of the multi-finger independent drive type mechanical arm is reduced under the condition that the conveying capacity is guaranteed.

The utility model discloses a photovoltaic support for a refuse landfill, which comprises at least 2N strip-shaped foundations which are distributed at intervals along an inclined plane, two straining beams are arranged between adjacent strip-shaped foundations, and two ends of the adjacent strip-shaped foundations are respectively connected by the two straining beams; the buttresses are arranged at the two ends of the strip-shaped foundation; the bottom of the steel column is fixed on the buttress; the photovoltaic module is fixed at the top of the steel column; the anti-slip coefficient mu between the bottom of the foundation and the soil is increased by adopting the cast-in-place strip-shaped foundation, and the anti-slip coefficient mu meets the standard anti-slip requirement on the premise of not damaging the impermeable film at the bottom of the soil layer. The strip-shaped foundations are connected through straining beams to form a net-shaped structure. The rigidity of the whole structure is improved, the influence of uneven settlement of a site is reduced, and stability and safety are ensured.

The utility model relates to the technical field of polishing machine part machining tools, in particular to a clamping tool for precise machining of polishing machine parts, which comprises a base, the base comprises a first side plate and a second side plate which are distributed at an interval, a movable clamping block is arranged on the first side plate and is in transmission connection with a clamping driving piece, and a fixed clamping block is arranged on the second side plate and is in transmission connection with the clamping driving piece. The movable clamping block and the fixed clamping block are oppositely arranged, and the movable clamping block can move towards the fixed clamping block so as to clamp the sponge polishing disc to be machined through the tool. A positioning groove is formed in the inner side wall, close to the fixed clamping block, of the movable clamping block, the positioning groove is of an arc concave surface structure, a plurality of first contact pins are evenly arranged on the periphery of the positioning groove in a winding mode, second contact pins are arranged on the inner side wall, close to the movable clamping block, of the fixed clamping block, and the first contact pins and the second contact pins can be inserted into the sponge polishing disc during clamping. The clamping tool structure is beneficial for solving the problem that no suitable clamping tool structure is provided at present to reduce collapse, extension and deformation of the sponge polishing disc before and after clamping.

The utility model provides a rotating disc type needle shaft grooving machine. Comprising a vertical rotating disc and a grooving cutter, wherein bearing grooves and an arc rolling surface are distributed on the circumferential surface of the rotating disc at equal intervals; the grooving cutter is arranged in front of the rotating disc; a cutting edge of the grooving cutter faces the circumferential surface of the rotating disc; the ejection mechanism is used for ejecting out the needle shafts in the bearing grooves so as to transfer the needle shafts to the arc rolling surface when the bearing grooves are sequentially rotated to the position of the cutting edge inlet end of the slotting tool by the rotating disc; the elastic buffer piece is arranged on the outer side of the circumferential surface of the rotating disc and is close to the inlet end of the cutting edge of the grooving cutter; and the elastic buffer piece is provided with a blocking surface which is closer to the circumferential surface of the rotating disc than the cutting edge. The utility model has the advantage that the cutting edge of the grooving cutter cannot be impacted and broken when the needle shaft is ejected out, and the service life of the grooving cutter can be prolonged.

The present invention discloses an online machine learning method based on interval distribution in the field of machine learning, comprising the following steps: 1) In the #imgabs0#-th round, the feature vector #imgabs1# of the document in this round is received; 2) Enter the multi-label prediction program; 3) After the prediction is completed, the true relevant label set #imgabs3# of #imgabs2# is received, and enter the multi-label classifier online update program to update the current multi-label classifier #imgabs4# to obtain the multi-label classifier #imgabs5# of the next round; 4) Return to step (1) and wait to receive the text feature vector of the #imgabs6#-th round; if no new text feature vector is input, the program exits. The present invention considers the interval distribution and has better generalization performance, so the results on multiple multi-label performance evaluation metrics are better.

The utility model relates to an industrial all-in-one machine which comprises a machine frame, at least two display screens, a bearing plate and a positioning rod, the machine frame is provided with two installation grooves distributed in the left-right direction at intervals and a containing groove located below the two installation grooves, and a groove opening of each installation groove and a groove opening of the containing groove face forwards; the two display screens are respectively mounted in the two mounting grooves, and a display panel of each display screen faces forwards; one end of the bearing plate is hinged to the groove wall of the storage groove, and the other end of the bearing plate is arranged in an up-and-down overturning mode, so that the bearing plate has a storage state in which the bearing plate is overturned upwards to cover the storage groove and a bearing state in which the bearing plate is overturned downwards to be positioned to bear objects; the two ends of the positioning rod are hinged to the groove wall of the containing groove and the bearing plate correspondingly so that the positioning rod can extend when the bearing plate overturns downwards and contract when the bearing plate overturns upwards. The bearing plate can bear objects or be contained in the containing groove according to use requirements, use is convenient and fast, operation is convenient, and no extra space is occupied.

The utility model discloses a classification weighing workbench of a fish processing production line, and relates to the technical field of fish processing, the classification weighing workbench comprises a workbench, the workbench is provided with a first conveying table, a material distributing structure, a second conveying table and a discharging assembly from left to right in sequence; a plurality of spacing plates which are distributed at intervals are arranged on the conveying table I; a weighing device and a classifying assembly are arranged on the portion, above the second conveying table, of the workbench, the weighing device and the classifying assembly are arranged in a spaced mode, and the weighing device is arranged on the side, close to the material distributing structure, of the workbench; the working end of the classification assembly is located above the second conveying table, and movement of the fishes on the second conveying table can be limited through the classification assembly so that the fishes can enter the discharging assembly from different positions on the second conveying table. The problems that in the prior art, when the fish yield is large, the labor intensity of workers is high and the workers are prone to fatigue after working for a long time in a manual fish classification mode, and the classification speed is very low are solved.

The utility model discloses a ball-end cutter which comprises a cutter handle and a cutter head, the cutter head is arranged at one end of the cutter handle, a first ball blade, a second ball blade and a third ball blade which are circumferentially distributed around the axis of the cutter head at intervals are arranged on the cutter head, the curvature radius of the first ball blade is 5mm, and the second ball blade comprises a first blade part and a second blade part which are connected with each other. The curvature radius of the first blade part is 2.9 mm, the curvature radius of the second blade part is 3.5 mm, the curvature radius of the third ball blade is 3 mm, and on the same cross section of the tool bit, the distance from the first ball blade to the axis of the tool bit is a first distance, the distance from the second ball blade to the axis of the tool bit is a second distance, and the distance from the third ball blade to the axis of the tool bit is a third distance. The first distance and the second distance are opposite to each other, a first difference value is formed between the first distance and the second distance, a second difference value is formed between the first distance and the third distance, in each cross section of the tool bit, the maximum value between the first difference values is between 0.14 mm and 0.18 mm, and the maximum value between the second difference values is between 0.2 mm and 0.25 mm. The ball-end cutter is long in service life.

The utility model provides a connecting ring for electric hammer, including annular body and the multiple first connecting parts of annular body outside circumference, the multiple first connecting parts are interval distribution between, and the annular body inside rotation setting has a plurality of needle roller along the circumference, the utility model discloses can improve the connecting stability and reliability of electric hammer connecting ring structure, prevent the connecting ring from heating and slipping.

The utility model relates to a switch button, which comprises a base and a button cap arranged on the base, the button cap can move between a first position and a second position which are distributed at an interval relative to the base along a first linear direction, and a first magnet and a second magnet are respectively arranged on the base and the button cap. When the keycap moves from the first position to the second position, the repulsive force between the first magnet and the second magnet is overcome, and the position of the second magnet relative to the keycap in the first linear direction is adjustable. The magnetic force serves as the reset force of the keycap, the magnetic force cannot be weakened or disappeared, and the situation that the keycap cannot be reset due to springback failure is avoided; the repulsive force can be adjusted according to the operation hand feeling requirement of the user, so that the hand feeling requirement of the user is met; even if the magnetic force of the first magnet and the second magnet is weakened, the repulsive force between the second magnet and the first magnet can be enough to reset the key cap by adjusting the position of the second magnet relative to the key cap, so that the service life of the key is prolonged.

The utility model discloses an extrusion die for copper bar production, which belongs to the technical field of extrusion dies and is characterized in that one end of an extrusion die body is fixedly connected with a mounting plate, the surface of the mounting plate is provided with mounting holes which are annularly distributed at equal intervals, one end of the extrusion die body is provided with a die hole, and one end of the die hole is provided with a working tape; according to the extrusion die for copper bar production, a flow guide nozzle can be additionally arranged at the discharging end of the extrusion die body through the connecting part arranged on the extrusion die body, and the stroke of a working belt is increased through a flow guide hole, so that the copper bar subjected to extrusion molding cannot be bent and wavy; and the flow guide coating is arranged on the inner wall of the die hole, the flow guide coating is a DLC coating, the hardness of the inner wall of the die hole can be greatly improved, meanwhile, the friction coefficient of the inner wall of the die hole is extremely low, deformation, abrasion and metal filing remaining of the die hole are avoided, and then the surface of the copper rod is prevented from being scratched and bruised.

The utility model discloses a device for improving the noise of burner, including: seal head and setting up the isolation blade ring on the seal head, said isolation blade ring is formed by a plurality of arc-shaped isolation blade in annular interval distribution, through setting up the isolation blade ring in the seal head to establish the sound insulation area, make the noise sound wave transmission of burner simultaneously, improve the sound insulation effect. The noise sound wave transmission distance is reduced through the sound insulation area, meanwhile, the sound wave transmission path can be changed, and finally the purpose of reducing noise is achieved.

The utility model belongs to the technical field of machining cutters, and particularly relates to a tungsten steel hard alloy cutter easy to dissipate heat, which comprises a cutter holder, a plurality of blades distributed at equal intervals along the circumferential direction, a clamping rod fixed on the top surface of the cutter holder and a spoiler, the bottom surface of the cutter holder is provided with a mounting groove for mounting the blades, and the spoiler is arranged in the mounting groove. A first air hole communicated with the mounting groove is formed in the outer side face of the tool apron, and the spoiler comprises a mounting part fixedly connected with the outer wall of the tool apron. The bending part is integrally formed at the top end of the mounting part and inclines towards the blade; according to the cooling device, through the arrangement of the first air holes and the spoilers, in the high-speed rotation process of the tool apron, air can enter the first air holes and continuously take away heat of the blades, cooling liquid can be continuously thrown to the blades when impacting the bent parts, the cooling liquid is continuously in contact with the blades, and the heat dissipation efficiency is greatly improved.

The invention discloses a thermal power generating unit generating capacity load interval distribution-based acquisition method and application, and the method comprises the steps: carrying out the preprocessing of a real-time data set F0 of an on-site generating set, and forming a set G0; establishing a six-level statistical index according to the load; determining conditions of the measuring points are set according to six-level statistical indexes; respectively configuring day, month and year attributes of each level of statistical index of a certain unit in the organization set H0; setting target values of four indexes including main steam temperature, main steam pressure, turbine rotating speed and generator load, searching real-time measuring point values corresponding to the four indexes in the set G0, and judging that the unit runs normally according to the set real-time measuring point values and the set target values. If yes, the daily, monthly and annual generating capacity of different loads of a certain unit or a certain level of organization mechanism is calculated respectively, and load interval distribution of unit-level and power plant-level electric quantity is correspondingly obtained according to organization mechanism dimension and time dimension generating data.

The utility model discloses a kind of for microsurgery can be universal bending laryngeal forceps, including welding bending lever and connecting rod, the inner surface of bending lever is equipped with several interval distribution ring grooves, the front end of bending lever is welded with forceps head, connecting rod rear end is welded with handle head pipe, the inside of handle head pipe is provided with placing cavity, the front end of placing cavity is connected with connecting rod rear end, the rear end of handle head pipe is equipped with flushing hole, the front end of placing cavity is installed with piston column, the front end of piston column and the movable forceps tongue of forceps head are jointly connected with traction steel rope, the both ends between the outer surface of piston column are equipped with evenly distributed through slot, the front end of handle head pipe outside is provided with handle assembly. The utility model in the process of application operating personnel can be according to experience to bending lever corresponding radian, angle universal bending, to reduce the difficulty that operating personnel will laryngeal forceps smoothly stretch into to patient's throat, easy to operate, it is convenient to use.

The utility model discloses a turbine blade of gas turbine, including the cooling cavity chamber of multiple interval distribution from below to above inside turbine blade and multiple cooling channel that penetrates turbine blade from bottom to top for the cooling inside turbine blade of gas turbine, based on the design of turbine blade cooling channel and cooling cavity chamber of the utility model, cooling gas can enter from the port of turbine blade bottom cooling channel, from below to above fills different height cooling cavity in proper order, and flows out through the port of turbine blade top cooling channel, compared with the blade of traditional cooling channel, the interior heat exchange area becomes big, improves the cooling effect and gas turbine overall efficiency, can effectively promote the cooling performance, and can also give consideration to manufacturing feasibility and economy.

The utility model relates to the technical field of fans, and discloses an axial flow fan blade and a fan, the axial flow fan blade comprises a plurality of blade units distributed at intervals along the circumferential direction, each blade unit comprises: a first blade comprising a first blade root part, a first blade top part, a first front edge part, a first tail edge part, a first suction surface and a first pressure surface; and the second blade comprises a second blade root part, a second blade top part, a second front edge part, a second tail edge part, a second suction surface and a second pressure surface, and the second tail edge part is connected with the first front edge part. Each blade unit is composed of the first blade and the second blade, a double-blade fitting mode is adopted, the blade units are novel in structure and attractive in appearance, and the blade units are closer to petal shapes.