70results about How to "Flexible angle" patented technology

The invention relates to a light-emitting diode (LED) light-distributing lens. The LED light-distributing lens comprises a lens body, wherein the lens body is defined by an incident plane, a reflecting plane and an emergent plane together; the incident plane is concave inwards at the bottom of the lends body; the reflecting plane is arranged on a side face of the lens body and is formed by assembling a plurality of annular surfaces together in sequence, which are axially arranged along the lens body; the curvature of the assembled part of two adjacent annular surfaces is discontinuous; the annular planes are arranged to form an annular step-shaped reflecting plane; and different annular surfaces receive incident light rays which correspond to the annular surfaces respectively and have different included angle ranges with the axis of the lens body, and then reflect the incident light rays, so that large-angle light rays which are emitted by a light source are subjected to differential segmentation according to the different included angles between the large-angle light rays and the axis of the lens body.

The invention provides a vehicle-mounted head-up display system having an error correction function. The vehicle-mounted head-up display system includes a control panel, a front windshield, an error correction unit and a head-up display. The head-up display includes an image generation unit and a mirror. A transmission optical element is arranged between the image generation unit and the mirror. The control panel is connected with the image generation unit, a display image of the image generation unit forms a light beam, and a virtual image is formed on the front windshield. The error correction unit is used to detect the virtual image, and a parameter of the image generation unit is adjusted to make the virtual image optimal. According to the vehicle-mounted head-up display system, the design of the transmission optical element is added, so that the image of two areas at different distances can be achieved on the basis of the single-light-path image generation unit; the error correction function is added, so that the application range of the head-up display system is wider, and it is also ensured that under different conditions, a driver can see clear images.

The invention discloses a high-pressure water cleaning vehicle provided with rotary water spray supports. The high-pressure water cleaning vehicle comprises a driving cab and a chassis, wherein a water tank, a power and control unit and a position adjusting unit are sequentially mounted on the chassis, the free end of the position adjusting unit is connected with a cleaning device, and the cleaning device communicates with the water tank through a water pipe; the power and control unit is electrically connected with the position adjusting unit and the cleaning device; the cleaning device comprises a main bracket, auxiliary brackets, the water spray supports and hydraulic cylinders I, one side of the main bracket is connected with the position adjusting unit, the other side of the main bracket extends outwards to form the two auxiliary brackets, and the free end of each auxiliary bracket is hinged with one end of the corresponding water spray support; the hydraulic cylinders I are hinged with the main bracket, and rod ends of the hydraulic cylinders I are hinged with the water spray supports; a plurality of spray nozzles are distributed on the outer side of the water spray supports in a length direction at intervals. The high-pressure water cleaning vehicle provided with the rotary water spray supports has the beneficial effects as follows: the water spray supports are designed into a rotary type, positions and angles of the water spray supports are flexible and variable, so that the water spray supports are not only suitable for cleaning a plane, but also is suitable for cleaning a wall surface with curvature change, and dual-surface cleaning is also realized.

The present invention provides a laser ranging system and method. The system includes a laser emitting module, an emitting and receiving common-optical path module, a laser receiving module, and a calculation module; the emitting and receiving common-optical path module includes a first transmission channel and a second transmission channel; the emitting and receiving common-optical path module isused for obtaining a wide-spectrum light source according to initial laser signals emitted by the laser emitting module, irradiating an object to be measured with the wide-spectrum light source through the first transmission channel, and receiving reflected laser signals through the second transmission channel, wherein the reflected laser signals are reflected back from the object to be measuredafter the broad-spectrum light source irradiates the object to be measured; and the calculation module is used for calculating a distance between the object to be measured and the laser ranging system. According to the laser ranging system and method of the invention, by means of the thinness of an optical fiber and the two laser transmission channels in the same optical fiber, emitting and receiving common-optical path distance measurement is realized; and since the application of a plurality of optical fibers is not required, the size of the probe of the laser ranging system can be greatly decreased, and the probe is more flexible and has higher concealment performance.

The invention discloses a double-work position hydraulic clamping rotating table. The double-work position hydraulic clamping rotating table comprises a rotation support, a rotation driving assembly and a rotation body, wherein the rotation body is mounted on the rotation support and does rotation motion under the drive of the rotation driving assembly; the rotation body comprises a rotation shaft and at least two sets of clamp assemblies; the at least two sets of clamp assemblies are mounted on the rotating shaft; the clamp assemblies comprise elastic chucks, spline shafts, oil cylinder pistons and rotation motors; the elastic chucks of the clamp assemblies which are mounted on the rotating shaft are located at the same straight line. According to the double-work position hydraulic clamping rotating table, the straight movement of the elastic chucks and the rotation are combined, the positions and the angles of workpieces are more flexible to change, and the work efficiency is improved; a plurality of workpieces are clamped by the same workbench for processing, and the labor productivity is further improved.

The invention relates to an adjustable solar street lamp applicable to a country road. The adjustable solar street lamp comprises a base, a lamp pole, an illumination mechanism and a power generationmechanism. The illumination mechanism comprises a side plate, a lampshade, a lamp tube and a light guide assembly. The light guide assembly comprises a lifting rod, a first motor and two light guide units. Each light guide unit comprises a first driving shaft, a sliding block, a buffer block, a vertical rod, a first driving rod, a first frame and a reflecting plate. The power generation mechanismcomprises a translational block, a translational plate, a direction adjusting assembly and a solar panel. The upper portion of the translational block is provided with a notch. A translational assembly is arranged in the notch. According to the adjustable solar street lamp applicable to a country road, the angle of the two reflecting plates is changed through the illumination mechanism, the irradiation range of the street lamp can be adjusted flexibly according to the width of the country road. Moreover, the solar panel is driven to rotate and move through the power generation mechanism to prevent sunlight reflected by the solar panel from being irradiated onto a cable and causing burning of the cable, property loss is avoided, and the practicality of equipment is improved.

A display for a vehicle includes a flat panel and an angle-adjusting mechanism which is connected to the flat panel for flexibly adjusting an angle of the flat panel. The angle-adjusting mechanism includes a first active element and a first driver. The first active element is connected to the flat panel, and the first driver is connected to the first active element so as to drive the first active element to adjust the angle of the flat panel. The first active element connected to a central region of the flat panel for providing a moving force onto the flat panel, and the first active element is moved forward to push the flat panel or moved backward to pull the flat panel.

A catheter system for trans-radial cerebro vascular interventional diagnosis and treatment comprises an internal catheter and an external catheter. The internal catheter and the external catheter are coaxially used and in close fit with each other. The internal catheter is of a pigtail structure, wherein one end of the internal catheter is a handle end I, and a head end I away from the handle end I is of a free bending structure; one end of the external catheter is a handle end II, a head end II away from the handle end II is a flexible hose, and the included angle between the head end II and the vertical direction is within the range of 20 degrees to 40 degrees. The catheter system is composed of the internal and external dual-catheter, the internal catheter is used for super-selective vascular openings, and the external catheter follows up. The two catheters are coaxial, and are mutually matched for use; the head of the external catheter is soft, and the rear part of the external catheter is straight, so that it is convenient for the external catheter to follow up the super-selective secondary branch blood vessels; after the success of the super-selective operation, the internal catheter can play the role in stabilizing the system and enhancing the system support, thus facilitating follow-up of the external catheter; and due to the adoption of the coaxial structure, the condition that the external catheter cuts vascular wall to damage blood vessels at the blood vessel turning portion can be avoided.

The invention relates to the technical field of pig iron castings, in particular to a mixing head for a pig iron casting sand mixer, including a transmission rod, the lower end of the transmission rod is fixedly mounted with a connecting piece, and the outer surface of the connecting piece is symmetrically provided with hinges, The middle part of the hinge is hinged with a stirring blade, a hydraulic telescopic rod is fixedly installed above the middle part of the stirring blade, and a limit ring corresponding to the hinge is fixedly installed in the middle part of the transmission rod. The structure of the mixing head is simple. By separating the transmission rod and the stirring blade, the disassembly and assembly of the stirring blade is more convenient. The angle between the rods becomes adjustable. At the same time, by adding multiple sets of hydraulic telescopic rods to adjust the angle, the use of the stirring blades is more flexible, and the stirring effect is getting better and better.

The invention discloses an LED lamp convenient to combine and connect. The LED lamp comprises rectangular mounting casings, lampshades and LED light bars, wherein openings are formed in the front surfaces of the rectangular mounting casings, the lampshades are arranged at the openings of the rectangular mounting casings, and the LED light bars are arranged in the rectangular mounting casings; one cylindrical bulge is formed in one end of each rectangular mounting casing, one groove corresponding to the cylindrical bulge is formed in the other end of each rectangular mounting casing, and an inlet is formed in the outer side of the groove. According to the LED lamp convenient to combine and connect, multiple rectangular mounting casings can be easily connected through matching of the cylindrical bulges and the corresponding grooves, the mounting angle is flexible, the rectangular mounting casings can be combined to form a curved illumination lamp, and the decoration property is good.

The present invention discloses an office multi-purpose reclining chair, which comprises a chair support frame, electric stretching rods, a backrest substrate, a cushion substrate, a leg portion rotating bracket and a vibration device, wherein the backrest substrate and the cushion substrate are connected by using a rotating shaft, the cushion substrate is arranged on the chair support frame, the electric stretching rods are symmetrically arranged on both sides of the chair support frame and the backrest substrate, the vibration device is arranged below the cushion substrate, and the leg portion rotating bracket is arranged on the front portion of the chair support frame. With the technical scheme of the present invention, the angle of the backrest substrate can be adjusted through the electric stretching rod, the control is electric, the angle is flexible, and the comfortable sleep is easily achieved; the vibration device below the cushion substrate can set delaying opening so as to wake up sleep or remind staff to take reasonable rest, such that occupational diseases can be prevented; and the leg portion rotating bracket can be folded when being not used, and the folded leg portion rotating bracket can be received into the position below the chair support frame so as to save the space.

The utility model relates to a spacial multi-angle truss structure, which consists of a truss rod, spacial bolt ball nodes and multi-angle variable nodes. The multi-angle variable nodes are formed by a shaft sleeve, a sliding sleeve, a sliding block and a nut; the center of the shaft sleeve is of a stepped shaft shape; two ends of the stepped shaft are respectively provided with concentric screw holes which can be connected with the truss rod; a disk-shaped sliding chute of the shaft sleeve extends out of a high-step shaft of the stepped shaft; the sliding sleeve is sleeved on a low-step shaft of the stepped shaft and fixed by nuts; the inside aperture of the sliding sleeve is matched with the outside diameter of the low-step shaft of the stepped shaft; a dished sliding chute of the sliding sleeve extends out of the outer edge of the sliding sleeve; the sliding chute of the sliding sleeve and the sliding chute of the shaft sleeve are oppositely and symmetrically arranged so as to form an annular groove with a large web and a small opening; the inner end of the sliding block is provided with a clamping head embedded into the annular groove, while the outer end is provided with a connector of the truss rod; and the outer end and the inner end are connected into a whole through a neck. The truss structure can adapt to the change of a slope; the angles of the multi-angle variable nodes are free, flexible and adjustable; and the spacial multi-angle truss structure is convenient to mount, attractive in appearance ad more flexible in use compared with the conventional bolt ball.

The invention discloses a novel large-angle rotation horizontal band sawing machine comprising a bed frame. The bed frame is rotatably connected with a rotating disk, and the rotating disk is fixedlyprovided with a square post bar; a group of first reinforcing ribs are fixed between the bottom of the square post bar and the top of the bed frame, and the square post bar is provided with a sawing frame body slid on the square post bar in the Z direction; the sawing frame body is provided with a driving belt wheel and a driven belt wheel, and a saw blade is installed between the driving belt wheel and the driven belt wheel; the driving belt wheel is driven by a first servo motor on the sawing frame body, and the rotating disk is fixedly provided with a first hydraulic oil cylinder for driving the sawing frame body to move up and down; and the bed frame is fixedly provided with a driving mechanism used for driving the rotating disk to rotate. The band sawing machine is ingenious and rational in structural design, and a workpiece can be cut by a large angle; and compared with a traditional sawing machine, the band sawing machine has the advantages of flexible sawing, large sawing angleand the like, and is worth popularizing and applying.

The invention provides a self-cleaning multifunctional mop and belongs to the field of cleaning products. The invention specifically provides a multi-purpose mop having a hand wash-free function. The self-cleaning multifunctional mop truly solves the problem of single functions of mops and solves the problem that a mop can only use mop cloths or a collodion head and is incapable of switching of the mop cloths and the collodion head. The self-cleaning multifunctional mop comprises a mop rod, a mop plate, a water squeezing component and a mop connector. The front side of the mop plate is provided with a wiping medium for mopping; the two sides of the mop plate are provided with a brush and a water-scraping soft rubber strip. The mop connector is uniquely designed to consist of a lower connector, an upper connector and a plug pin, wherein the upper connector and the lower connector can be located as required so that the rotating angle of the mop is controlled. The self-cleaning multifunctional mop truly integrates the functions of sweeping, mopping, water scraping and self-cleaning, so that the functions of the mop are extended; the mop is convenient and flexible to use, low in manufacture cost, and is firm and durable.

The invention discloses a rescue device for emergency hemostasis in the internal medicine department, and relates to the field of rescue devices for emergency hemostasis. The rescue device comprises a base, the bottom of the base is provided with a hemostasis rescue device movement limiting part, the top of the base is fixedly connected with a stand column, and the top end of the stand column is rotatably connected with a supporting plate. The rescue device is reasonable in structure, movement and position fixation of the hemostasis rescue device are facilitated by arranging the movement limiting part, compared with a traditional movement fixing mode, the hemostasis rescue device is prevented from moving due to external force, certain adverse effects on the hemostasis effect are avoided, by arranging a hemostasis part, a supporting plate limiting part, a threaded column, a guide rod, a hemostasis rescue device linkage part and an air cylinder assembly, the position of the hemostasis rescue device is adjusted, hemostasis operation is conducted on different bleeding positions, the operation is convenient, the angle of the hemostasis rescue device is flexible, adaptation is conducted according to the shape of the pressed part of a patient, and the hemostasis effect is good.

The invention discloses a glass pressing machine. The glass pressing machine comprises a motion base provided with a cowcatcher, an expansion type supporting mechanism mounted on the motion base, efficient lifting mechanisms fixedly mounted on the two sides of the motion base, a 360-degree rotary work machine arm and a suction cup grabbing mechanism rotationally connected to the tail end of the work machine arm. The suction cup grabbing mechanism is of a multi-point linkage structure and comprises multiple bag-shaped suction cups. The tail end of the rotary work machine arm comprises a ball head connector and telescopic air rods. Through the multi-point linkage suction cup grabbing mechanism, adsorption and grabbing of any curved glass are achieved; the bag-shaped suction cups can adsorb irregular glass with unsmooth surfaces; and the ball head connector and the telescopic air rods are arranged, and the angles are more flexible and freer in the glass mounting process.

The invention provides a wireless lens and a mobile terminal.The wireless lens comprises a base, a first support and a camera assembly, wherein the first support is rotationally connected with the base and can rotate around a horizontal rotating shaft, and the camera assembly is rotationally connected with the first support and can rotate around a vertical rotating shaft.The wireless lens further comprises a first driving device driving the first support to rotate and a second driving device driving the camera assembly to rotate.The camera assembly comprises a camera, an image processor and a first wireless sensor.The first wireless sensor is in signal connection with the first driving device and a second driving device and used for receiving a control signal of the mobile terminal to control the first driving device to drive the first support to rotate or control the second driving device to drive the camera assembly to rotate.The wireless lens has the advantages that advantages in pixel of an existing extension lens and flexibility of a micro camera are combined, a high-quality picture and a flexible angle are provided, and the wireless lens is only used for picture transmission without storage and record of the camera.

The embodiment of the invention discloses a portable surface defect integrated detection device and a surface defect automatic detection method, and belongs to the technical field of surface defect detection. The device comprises a mechanical supporting and fixing unit, a control unit, an image acquisition unit, a lighting unit and an output unit. The method comprises a defect detection network model and a crack detection network model, and the defect detection network model is used for carrying out defect feature extraction, classification and defect marking on an image and outputting the image with a defect mark; the crack detection network model is used for carrying out crack feature extraction, classification and defect marking on the images and outputting the images with crack marks, the method can improve the detection effect of the surface defects with complex backgrounds and low gray contrast, and rapid and accurate detection of the surface defects and the surface crack defects is achieved.

The invention discloses a computer chair with an adjustable waist support. The computer chair comprises a pedestal and a chair; the pedestal consists of an air pressure rod, a chassis and a triangularbracket; an adjusting rod is arranged on the side surface of the air pressure rod; the adjusting rod is movably connected with the air pressure rod; the chassis is fixedly arranged at the bottom of the air pressure rod; the triangular bracket is arranged at the bottom of the chassis; universal wheels are arranged at the bottom of the triangular bracket; the chair is arranged at the top of the airpressure rod; supporting rods are arranged at the two ends of the side surface of the chair; the supporting rods are fixedly connected with the chair through bolts; handrails are arranged at the topsof the supporting rods; a backrest is arranged on one side of the chair; a waist cushion is arranged on the side surface of the backrest; the waist cushion is movably connected with the backrest; a movable clamping piece is arranged on the side surface of the backrest; the chair can adjust height and the like according to the requirements of users and is flexible and convenient to use; and the problem of body discomfort caused by the fact that a user sits for a long time can be effectively avoided.

The invention discloses an angle-freely-adjustable tool for a milling machine. The angle-freely-adjustable tool comprises an upper fixing body, a lower fixing body, a pressing plate, a limiting plate, a pin shaft and a bolt assembly. The upper fixing body and the lower fixing body are rotationally connected through the pin shaft, the limiting plate is arranged below the pin shaft, the limiting plate is fixed to the upper fixing body through the bolt assembly, the workpiece to be machined is arranged on the upper fixing body and is pressed and fixed through the pressing plate and the bolt assembly, scale lines are arranged on the lower fixing body, and scale indication lines are arranged on the upper fixing body. The freely-adjustable angle tool for the milling machine has the advantages of being simple in structure, flexible in angle adjustment and convenient and rapid to use, effectively improving the production efficiency, greatly reducing the labor intensity and meeting the requirement for batch production.

The invention provides a self-responsive self-power-generation water-storage type spray device. The device includes a supporting rod and a spray head; the spray head adopts an atomizing nozzle which is controlled by a solenoid valve, the supporting rod is hollow, the upper end of the supporting rod is communicated with a hollow cantilever, the spray head is located at the end of the cantilever, the bottom of the supporting rod is communicated with a water storage box, the water storage tank is internally provided with a water pump, the water pump is communicated with the spray head through flexible water pipes arranged in the supporting rod and the cantilever, the top of the supporting rod is provided with a solar photovoltaic panel and / or a wind power generation device, the rod body of the supporting rod is provided with a dust sensor, and the solar photovoltaic panel and / or the wind power generation device, the solenoid valve and the dust sensor are connected with a storage battery and a control unit through cables arranged in the supporting rod. The device can supply power to itself through the power generation device and is provided with the water storage device, the stability is high, the device can move and be used immediately, at the same time, the dust sensor is used for performing spraying work at the right time, and water and electricity are saved.

The invention discloses an electric power inspection device. The electric power inspection device comprises a movable robot main body, a camera shooting assembly and a control assembly, wherein a mechanical arm is arranged at the top part of the movable robot main body; the camera shooting assembly is arranged at the tail end of the mechanical arm, and is used for shooting to-be-detected equipmentto obtain image information of the to-be-detected equipment and transmitting the image information to the control assembly; and the control assembly is arranged in the movable robot main body, and isused for detecting the image information, controlling a running path of the movable robot and controlling the mechanical arm to move, thus the camera shooting assembly can shoot the to-be-detected equipment. The electric power inspection device solves the technical problems that an existing electric power inspection robot adopts a rotatable camera holder for data acquisition, only long-distance detection can be achieved under the condition that the space is narrow and the existing electric power inspection robot is not suitable for short-distance and any-angle detection in a narrow environment of indoor space.

The invention discloses a crop growth state monitoring device based on 5G, which belongs to the technical field of agriculture, and solves the problems that the position of a signal transmitter of an existing device is not adjusted, and monitoring equipment is not arranged at the same time. The device is technically characterized by comprising a protection base, a positioning base is arranged on the protection base, a plurality of supporting legs used for supporting the positioning base are evenly distributed on the protection base, a workbench is fixedly installed above the positioning base, a supporting frame is arranged on the workbench, a sensor assembly and a monitoring assembly are installed on the supporting frame, and meanwhile, a height adjusting assembly is arranged on the lower surface of the supporting frame. According to the embodiment of the invention, the sensor assembly is arranged, the arrangement of the sensor assembly facilitates the analysis of gas components of a crop growth environment, a worker can master the growth state of crops in time, the workload of the worker is reduced, and the arrangement of the monitoring assembly facilitates the real-time monitoring of the growth state of the crops. Meanwhile, the angle of the monitoring assembly is flexible and adjustable.

The invention belongs to the technical field, and particularly relates to a bendable high-strength cable bridge which comprises a switching bridge assembly, terminating bridges and splicing bridges, wherein the adjacent splicing bridges are spliced in a contact mode one by one, the splicing bridge at the outermost end is spliced with one terminating bridge through an arranged splicing assembly, the other end of the terminating bridge is spliced with a switching bridge assembly used for changing the direction of a cable, the other terminating bridge is spliced with the other end of the switching bridge assembly, and top protectors are arranged on the upper surfaces of the terminating bridges and the splicing bridges at equal intervals. According to the bendable high-strength cable bridge, a traditional fixed corner bridge can be changed, more multi-angle installation choices can be provided for the cable, the bridge is stable in structure and high in strength, in addition, deviation and shaking between adjacent bridges can be avoided, the working difficulty of bridge splicing is reduced, and finally protection of the surface of the cable is provided.

The invention provides a self-responded and self-powered spraying system. The self-responded and self-powered spraying system comprises a water source with a water pump and a group of spraying devices, wherein each spraying device comprises a spraying head controlled by an electromagnetic valve and a support rod; the spraying heads adopt atomization nozzles; the support rods are hollow; the upperends of the support rods are connected with a hollow suspension arm; the spraying heads are arranged at the ends of the suspension arm; a stable base is arranged at the bottom of each support rod; a solar photovoltaic panel and / or a wind power generation device is arranged at the top of each support rod; a dust sensor is arranged on the rod body of each support rod; the solar photovoltaic panels and / or the wind power generation devices are connected with a storage battery; the storage battery is connected with the dust sensors and a control unit respectively; the control unit is connected withthe electromagnetic valve; the spraying heads are connected with a water pump through a flexible water pipe. The spraying system is self-powered through a power generation device, is high in stability, and can be carried and used simultaneously; meanwhile, the dust sensors are used for spraying; the water and the power are saved; the work requirements on dust removal and temperature reduction ofvarious construction sites can be met.

The invention discloses a high-pressure water cleaning vehicle provided with rotary water spray supports. The high-pressure water cleaning vehicle comprises a driving cab and a chassis, wherein a water tank, a power and control unit and a position adjusting unit are sequentially mounted on the chassis, the free end of the position adjusting unit is connected with a cleaning device, and the cleaning device communicates with the water tank through a water pipe; the power and control unit is electrically connected with the position adjusting unit and the cleaning device; the cleaning device comprises a main bracket, auxiliary brackets, the water spray supports and hydraulic cylinders I, one side of the main bracket is connected with the position adjusting unit, the other side of the main bracket extends outwards to form the two auxiliary brackets, and the free end of each auxiliary bracket is hinged with one end of the corresponding water spray support; the hydraulic cylinders I are hinged with the main bracket, and rod ends of the hydraulic cylinders I are hinged with the water spray supports; a plurality of spray nozzles are distributed on the outer side of the water spray supports in a length direction at intervals. The high-pressure water cleaning vehicle provided with the rotary water spray supports has the beneficial effects as follows: the water spray supports are designed into a rotary type, positions and angles of the water spray supports are flexible and variable, so that the water spray supports are not only suitable for cleaning a plane, but also is suitable for cleaning a wall surface with curvature change, and dual-surface cleaning is also realized.

The invention provides a rehabilitation training table and rehabilitation training equipment, and relates to the technical field of rehabilitation equipment. The rehabilitation training table comprises supporting legs and a table board; the table board is rotatably arranged at one end of each supporting leg, and the relative height of the table board is adjusted by the supporting legs; the table board comprises a first table board body, a second table board body and a third table board body, the first table board body is shaped like a rectangle, and the second table board body and the third table board body are each shaped like an arch; the first side edge of the first table board body is hinged to the second table board body, the second side edge of the first table board body is hinged tothe third table board body, and the first side edge is adjacent to the second side edge. The rehabilitation training table is simple and reasonable in structure, convenient to store and suitable forusers of different heights to use.

The invention discloses automatic drilling equipment for pulverized coal. The automatic drilling equipment comprises a drilling machine body, a pulverized coal leading-out mechanism and a metering device, wherein the drilling machine body comprises a drilling cuttings assembly, the drilling cuttings assembly comprises a drilling rod used for drilling cuttings on pulverized coal to loosen the pulverized coal, the coal powder guiding-out mechanism comprises a coal guiding barrel arranged outside the drill rod in a sleeving mode and a coal guiding hose connected to the coal guiding barrel, the metering mechanism comprises a base, a supporting plate arranged on the base and a pressure sensor arranged between the base and the supporting plate, pulverized coal drilled by the drill rod passes through the coal guide barrel and is guided to a tray of the metering mechanism through the coal guide hose, so that the weight of the pulverized coal on the tray is obtained through a pressure sensor of the metering mechanism. By additionally arranging the metering mechanism, the pulverized coal can be weighed so as to meter the weight of the drilled pulverized coal.

The invention discloses an efficient cabinet type centrifugal fan. Comprising a cabinet body, a ventilation pipeline fixedly arranged on the cabinet body, an air inlet and an air outlet which are formed in the ventilation pipeline, a partition plate located at the air inlet and fixedly arranged on the ventilation pipeline, a rotating ring rotationally arranged on the partition plate, an air supply device fixedly arranged on the rotating ring, and an auxiliary device arranged on the partition plate and used for assisting the air supply device. And the driving device is arranged on the cabinet body and used for driving the air supply device to operate.