126results about How to "No blocking" patented technology

The invention discloses a remote procedure calling processing method and device, a remote procedure calling method and device, a remote procedure calling processing system and electronic equipment, wherein the remote procedure calling processing method comprises the following steps of: receiving a service request corresponding to a specific service process sent by a calling process; storing the service request in a request queue to be processed of a service process; when the service request is processed, executing the service process according to the service request by an operating system so as to obtain a process result; and copying the process result in the storage space of the calling process from a kernel of the operating system. By means of the method provided in the invention, when remote process calling is realized, a practical I / O read-write request process cannot be blocked; the operating system does not need to traverse all user processes; data only needs to be copied in a user process for monitoring an event; and thus, the remote procedure calling performance can be improved.

The invention relates to the technical field of windows inter-process communication, and discloses a pipeline-based inter-process message communication method, which comprises the following steps that: 1, a process is registered in a message center and transmits process information, wherein the message center is used for processing a service program of the process, and the process information comprises a message identifier; and 2, the message center transmits a message corresponding to the message identifier to the process. In the communication process of the steps 1 and 2, the process and the message center communicate with each other by using a pipeline. By the method, the inter-process communication can be simply realized.

The invention relates to a testing unit for a straight welded pipe, in particular to an automatic magnetic particle testing unit for toe cracks at inner wall of the straight welded pipe, comprising a car body consisting of a sweep template, a driving wheel, a stop block, a supporting plate, universal wheels and a guide bar which are connected with each other coaxially, and a rotary bearing, a driving motor, a control part, a steering engine, a position switch arranged on the two ends of one end of the car body, and a transformer bearing, a camera bearing, a sprayer bearing, a crossed yoke, an ultraviolet lamp bearing, and a water pump water tank bearing which are successively arranged on the top of the sweep template from left to right, wherein, the upper end of the stop block is fixedly connected with the two sides of the rear end of the sweep template bottom in parallel, the output end of the steering engine is fixedly connected with the universal wheels through the guide bar, the upper end of the rotary bearing is fixedly connected with the two sides of the rear end of the sweep template bottom in parallel, the lower end of the rotary bearing is fixedly connected with one end of the supporting plate, the other end of the supporting plate is fixed connected with the sweep template bottom, and output shaft of the driving motor is respectively connected with the two driving wheels fixedly. The invention can completely takes the place of manual work to carry out automatic magnetic particle testing, and has the advantages of compact structure and convenient operation.

The memory controlling system is located between the main computer and the disk and is used for processing a data request message sent from the main computer to the disk. It has a topology structure composed of multi processing nodes; wherein, between every two nodes there is a data-exchanging channel; said processing nodes is used for executing the memory controlling operation corresponding to the received data request type through said data-exchanging channel. The invention also reveals a processing node thereof.

The invention relates to a preparation method of a polyvinyl alcohol / ZIF-8 porous composite material, and belongs to the field of porous materials. Polyvinyl alcohol is used as a polymer material andis compounded with ZIF-8, and the polyvinyl alcohol / ZIF-8 porous composite material is prepared by adopting an ice template method and a freeze-drying technology. The preparation process is simple andis short in time and the ZIF-8 is uniformly dispersed. In the polyvinyl alcohol / ZIF-8 porous composite material prepared by an ice template method, ZIF-8 particles are adhered to a polyvinyl alcoholporous material skeleton with a macroporous structure; as the polyvinyl alcohol porous material has an open pore structure, the inherent pore structure of ZIF-8 particles cannot be blocked, and therefore the porous composite material with the large specific surface area can be prepared. ZIF-8 nano-particles with different specific surface areas can be prepared by changing the preparation method ofthe ZIF-8 nano-particles; meanwhile, the specific surface area of the porous composite material can be controlled by changing the mass ratio of the ZIF-8 particles to the polyvinyl alcohol.

A coater for dispersed slurry capable of coating coated dispersed slurry on a nonwoven cloth-like base material while bringing the slurry into contact with the material, comprising a net conveyor for transferring the nonwoven cloth-like base material, a supply means for supplying the dispersed slurry onto the net conveyor, and a coating roll for forming a coating layer of a specified thickness by pressing, from the upper side thereof, the dispersed slurry supplied onto the nonwoven cloth-like base material, wherein this coating roll is allowed to come into direct contact with the dispersed slurry on the peripheral surface of the nonwoven cloth-like base material or allowed to come into contact with the dispersed slurry through a film provided therethrough.

The invention discloses a fruit and vegetable nutrition regulator, a preparation method thereof and a usage method thereof. The fruit and vegetable nutrition regulator comprises the following materials or elements in part by weight: 25 to 30 parts of Mg, 4 to 5 parts of B, 5 to 6 parts of Mn, 8 to 10*10<-2> parts of Mo, 2 to 5*10<-2> parts of SiO2, and 3 to 5*10<-2> parts of amino acid. The preparation method for the fruit and vegetable nutrition regulator comprises the following steps: mixing and hydrolyzing a mixture of compounds containing magnesium, boron, manganese and molybdenum elements respectively or simultaneously and a protein source, and then mixing the hydrolyzed product and silicon dioxide colloidal solution to form the fruit and vegetable nutrition regulator. The usage method for the fruit and vegetable nutrition regulator comprises foliar fertilization. The fertilizer makes up the blank of the field aiming at the properties of soil and the nutritional requirements of crops in the Pearl River Delta region; a final product of the fruit and vegetable nutrition regulator contains certain oily substances so that the fertilizer solution can effectively stay on the leaf surface and the defect of harming or blocking pores of leaves does not exist. The preparation method has the advantages of simple and convenient preparation process, low cost, high production efficiency and strong economic benefit, and is suitable for large-scale production.

Disclosed is an equipment used for a spinning preparation machine (1) especially for a drawing frame (1) or a carding machine (7), it is used for placing fiber carding bar (FB) with assignalble conveying speed (LG) to supply by a conveying device (6) into a carding bar barrel (K), the equipment (7) has a carding bar barrel bracket (12) and a turntable (10) capable of rotating with turntable speed (DG) circling a rotating shaft (DR) and a carding bar transporting tube (11) for transporting fiber carding bar (FB), wherein the carding bar transporting tube (11) has output open (23), wherein a transmitting system (26) is arranged to the turntable (10), it is designed into when the fiber carding bar (FB) is placed into the carding bar barrel (K), according to assignalble collocation (AP,GP), corresponding to the appointed basic speed (GG) generating the turntable speed (DG) declining temporarily, leading the fiber carding bar (FB) longitudinal tension to minish during the speed declining.

The invention discloses a trace gas collecting device for geochemical exploration, and belongs to the technical field of gas collecting equipment. The trace gas collecting device comprises a storage box with a plurality of collecting bottles; a gas collection pipe is arranged on a side wall of the storage bottle;; a rigid air inlet needle is arranged at one end of air collecting pipe, air outlet needle is arranged at other end of the air collecting pipe, and a rubber plug is arranged at bottle opening of the gas collecting bottle; a pumping filtering mechanism is arranged in the middle of thegas collecting pipe; a turntable is arranged in the bottle storage box, a rotating shaft is arranged in the middle of the turntable, and multiple collecting bottles are radially arranged on the turntable around the rotating shaft. A plurality of collecting bottles are contained in the bottle storage box, the rigid gas inlet needle is not prone to bending in the collecting process and can conveniently go deep into the ground to explore and collect trace gas, and a gas inlet needle opening cannot be severely blocked in the collecting process; underground trace gas is pumped and filtered by utilizing the pumping and filtering mechanism, so that the purity of sample gas can be ensured; the rotating shaft is driven to rotate the turntable to inflate a plurality of collection bottles one by one,so that convenience and rapidness are achieved, and continuous gas collection operation is facilitated.

The invention discloses an ecological lawn with a siphoning water drainage, collection and reutilization system. The ecological lawn comprises a waterproof reinforced concrete top plate, wherein a waterproof layer, a heat insulation layer, a fine aggregate concrete protection layer, a water discharging and storage layer and a planting soil layer are arranged laid on the waterproof reinforced concrete top plate in sequence. The ecological lawn further comprises the siphoning water drainage and collection system. The siphoning water drainage and collection system comprises a plurality of siphoning water drainage tanks, a water drainage pipe and a storage pond, wherein a plurality of observing pipes and a plurality of observing wells are arranged on the water drainage pipe, the observing pipes and the observing wells are distributed in an equal-distance, alternative and spaced mode, the siphoning water drainage tanks are located in the water discharging and storage layer, and the siphoning water drainage tanks are distributed among adjacent irregular water discharging and storage pieces of the water discharging and storage layer. The ecological lawn is reasonable in structural design, the water level of the planting soil layer can be kept lower, air and water permeability of soil are kept, normal growth of plant root systems is ensured, water in the water discharging and storage layer can be also discharged to the observing wells through the siphoning water drainage tanks in an organized mode and converges in the storage pond for secondary recycling, and water resources are saved.

The invention discloses a quick double-faced date and batch number printer which comprises a rack, a feeding part, printing parts, a discharging part and a motor. The printing parts comprise the upper printing part and the lower printing part which are of the same structure, the upper printing part comprises an upper lettering rotating shaft and an upper printing ink fixing shaft which is mounted on one side of the upper lettering rotating shaft, and the upper lettering rotating shaft is provided with a box walking wheel and a lettering assembly. The lettering assembly comprises a rubber letter nail, a letter nail clamping seat, a fixing shaft and a bearing, the bearing is detachably fixed on the lettering rotating shaft, the fixing shaft is provided with a buffer spring, one end of the fixing shaft is fixed on the bearing, the letter nail clamping seat is fixed at the other end of the fixing shaft, and the rubber letter nail is mounted on the letter nail clamping seat. The motor is in transmission connection with the printing parts, the feeding part and the discharging part. According to the quick double-faced date and batch number printer, batch numbers and dates can be printed on the upper face and the lower face of a packaging box at the same time in a printing ink stamped mode, the printing accuracy is high, the speed is high, and the effect is good.

The invention relates to a gas compressor impeller, which comprises a wheel disc, wherein the wheel disc is a circular disc, a shaft hole is formed in the center of the wheel disc, the center of one side of the wheel disc is provided with a shaft sleeve, the inner diameter of the shaft sleeve is identical to and corresponds to the diameter of the shaft hole formed in the wheel disc, the appearance of the shaft sleeve is in a horn shape, one end of a horn mouth of the shaft sleeve forms a whole with the wheel disc, and blades are uniformly distributed around the shaft sleeve. The gas compressor impeller is characterized in that the blades arranged on the end, far away from the wheel disc, of the shaft sleeve are arranged in a one-long-blade and one-short-blade alternate way, so that in the adjacent blades, one impeller is the long impeller, and the other impeller is the short impeller. When the gas compressor impeller is adopted, the fuel oil consumption can be reduced, and the occurrence of an overheat phenomenon of an engine is voided. The gas compressor impeller is applicable to an automobile engine supercharger.

The invention relates to the technical field of electronic product detection, and discloses an efficient microphone sorting unit. The efficient microphone sorting unit comprises a frame; the frame is provided with a feeding mechanism and a detection mechanism. The feeding mechanism comprises a vibration disc and a distribution disc; the detection mechanism comprises a base block and a slide plate; baffle plates are arranged on the base block and at two sides of the slide plate; two parallel sliding poles are arranged between the baffle plates; a detection gap is arranged on the front of the slide plate; a sound hole is arranged on the base block and just below the detection gap; a detection pressure finger is arranged right above the slide plate; the front end of the detection pressure finger is provided with a detection head; a pressure spring is between the rear end of the detection pressure finger and the slide plate; a lifting cylinder is arranged on the slide plate; the shaft end of the lifting cylinder is provided with a horizontal pressure bar; a blanking channel penetrating through the top surface of the base block is arranged in the base block; the bottom of the blanking channel is provided with a two-way sorting mechanism; and the base block is provided with a horizontal cylinder for driving the slide plate to slide. The present invention has the beneficial effects of fast and stable feeding, and high testing and separation efficiency.

The invention relates to the technical field of microphone detecting and sorting, and discloses a microphone sorting device capable of charging automatically. The microphone sorting device comprises a rack, wherein the rack is provided with a charging mechanism and a detecting mechanism; the charging mechanism comprises a vibration plate and a material distributing plate; the detecting mechanism comprises a base block and a sliding plate; the base block, positioned at two sides of the sliding plate, is provided with baffles; two parallel sliding rods are arranged between the baffles; the front end of the sliding plate is provided with a detecting notch; the base block, positioned right below the detecting notch, is provided with a sound hole; a detecting pressure finger is arranged right above the sliding plate; the front end of the detecting pressure finger is provided with a detecting head; a compression spring is arranged between the rear end of the detecting pressure finger and the sliding plate; the sliding plate is also provided with a lifting air cylinder; the shaft end of the lifting air cylinder is provided with a horizontal pressing rod; the base block is internally provided with a blanking channel communicated with the top surface of the base block; the bottom of the blanking channel is provided with a bi-way sorting mechanism; the base block is also provided with a horizontal air cylinder for driving the sliding plate to slide. The microphone sorting device has the beneficial effects of rapid and stable charging, and high detecting and sorting efficiency.

The present invention is a method for realizing the transmission and reception of the synchronous data among different servers by utilizing a message service mechanism. In order to increase the performance of servers, the synchronous data is synchronized in batches, and when the connection with receiving servers fails, the data waiting to be synchronized is stored in a queue, so that the data can be retransmitted after reconnection, thus preventing the loss of all the data. In terms of synchronous number, synchronous time, etc., a corresponding regulation can be done according to the requirement of users. When being replaced with other database, if tables and fields are the same, the only job is to alter the database waiting for connection with configuration files and have a little modification, and after some experiment on the present invention, the efficiency is notably increased. Meanwhile, a user can conveniently and rapidly perform corresponding configurations according to own ideas, materializing the humanization of software. In terms of maintenance, the human power is saved, and the use is easy.

A longitudinal micrometric separator (3) for the classification of solid particulate materials comprising an outer casing having an inflow opening and an outflow opening for the particulate material, a collection chamber (11a) at the bottom, as well as a sliding support (10a) for the particulate material extending substancially along a longitudinal drawing axis, in which the material is conveyed in the direction of the aforesaid longitudinal axis by a forced fluid flow. The sliding support (10a) comprises at least one first inclined wall (15a), lying in a plane parallel to the drawing axis, and at least one dropping channel (17a) with axis parallel to the drawing axis and connected to a side end of the same inclined wall, the other side end of the inclined wall being set at a distance from the internal surfaces of the casing.

The invention provides fiber-reinforced thermosetting plastic corrugated pipe production equipment and a fiber-reinforced thermosetting plastic corrugated pipe production process, and belongs to the field of pipe body manufacture. The outer wall of a core model is designed as a waveform curved surface which is adaptive to the inner wall of a corrugated pipe and twined by a glue rope, the wave peak of the waveform curved surface expands in the axial direction in a spiral manner, a walking trolley conducts reciprocating movement in the axial direction along the core model, pressing wheels used for conducting compressing formation on the wave trough positions corresponding to the waveform curved surface are arranged on the walking trolley, the pressing wheels are driven by vertical lifting cylinders to move up and down, and through the coordination of the core model and the pressing wheels, the fiber-reinforced thermosetting plastic corrugated pipe production is finished; the core model adopts a detachable structure according to design, so that a set of core model can be suitable for producing the pipes with different specifications. The production equipment is simple in structure, low in cost, simple and convenient for production process operation and convenient to realize efficient production realization, the axial strength, circumferential strength and the pressure-bearing capability of the produced corrugated pipe are further improved, and the corrugated pipe has excellent heat dissipation performance when being used as an electric force pipe.

The invention relates to an artificial lawn free from sand stuffing and applied to a cage type football field. The artificial lawn comprises a lawn base layer, a back glue layer, straight filament tufted piles, and bended filament tufted piles, wherein the back glue layer is uniformly arranged on the back of a base cloth of the lawn in a coating manner; the straight filament tufted piles and the bended filament tufted piles are tufted on the lawn base layer in a machine-knitted manner; the back glue layer is fixed on the back of the lawn base layer in a manner of uniform coating and curing; and drainage holes are formed in a composite layer of the lawn base layer and the back glue layer. According to the artificial lawn disclosed by the invention, the situation that straight filaments in a straight filament tufted pile substance is erected can be guaranteed, and the situation that the artificial lawn has good cushioning property can be guaranteed; the fall damage prevention grade of the artificial lawn in the use process is improved, and the drainage property of the artificial lawn is guaranteed; and sand materials do not need to be stuffed in the use process of the artificial lawn; so that the cost is reduced, and the safety and the environmental protection of the production and the use of the artificial lawn can be guaranteed.

The invention discloses a high-temperature superconducting motor rotor low-temperature cooling system utilizing liquid hydrogen, and relates to the technical field of superconducting application low temperature. In the system, liquid hydrogen is stored in a liquid hydrogen storage tank to form a liquid section at the bottom and a gas section at the top, the liquid hydrogen of the liquid section istransmitted to a liquid hydrogen gasification cavity in an outer wall containing cavity of a high-temperature superconducting motor rotor in a communicating mode through a liquid hydrogen conveying pipe under the action of gravity to be subjected to heat exchange so as to achieve cooling, and hydrogen formed after liquid hydrogen gasification is transmitted back to the gas section of the liquid hydrogen storage tank through a hydrogen conveying pipeline to maintain the pressure in the liquid hydrogen storage tank so as to form a closed cycle. According to the system, liquid hydrogen is used as a low-temperature cooling medium so as to effectively maintain the temperature in the liquid hydrogen gasification cavity and meet the working temperature requirement of the superconducting magnet,and the system is driven by gravity, so that a circulating pump does not need to be additionally used, and the reliability of the system is improved.

The invention provides an open-contraction brake block rivet and a production method thereof and belongs to the technical field of rivets. The rivet and the method resolve the problem that normal feeding of the existing brake block rivets cannot be conducted in assembly due to lack of chamfer structure, or the rivets are disqualified in batch caused by burrs and the like. The rivet comprises a head portion and a rod body which are integrally connected. Axial through holes formed by cold heading and punching are arranged on the head portion and the rod body, and a conical portion formed by cold extruding chamfering processing is arranged on at the end of the rod body. The production method of the rivet includes the following step: 1 material tampering: delivering material bases with designated length to the below of a punch which punches the rivet and for axial through holes; and 2 cold extruding: utilizing a cold extruding mould to conduct cold extruding chamfering processing on the rivet rod end to form the conical portion. The rivet has the advantages of being simple in structure and stable in product formation, reducing scrappage and the like.

The invention provides an integral primary drilling device for a solar mirror bracket. The integral primary drilling device comprises an equipment base, a drilling bracket combined unit, a mirror bracket bearing mechanism, a drilling power head and a positioning detection mechanism for detecting a drilling position. The integral primary drilling device is matched with all component units, so that the integral primary drilling precision of the solar mirror bracket is effectively enhanced and the drilling efficiency is improved.

The invention discloses a high-concurrency counting method based on a MySQL counter. The method comprises the steps of setting multiple trenches in the MySQL counter, and storing multiple trench values corresponding to the multiple trenches into a preset stack; detecting whether counting events occur or not in real time; if the counting events are detected, storing the counting events to a messagequeue; opening multiple counting threads of which the number is the same as that of the trenches to make all the counting stacks read the counting events from the message queue, reading the trench values from the preset stack, updating the counting events to the trench values, deleting the counting events which are already counted from the message queue, and returning the updated trench values tothe preset stack. Compared with the prior art, through the message queue, the counting operation of a web application and the counting operation of the MySQL counter are decoupled; by setting the multiple trenches to conduct concurrent counting operations on a large quantity of counting events at the same moment, it is guaranteed that the counting operation of the MySQL counter cannot be clogged,and the efficiency of high-concurrent counting is greatly improved.

The invention provides a heat source machine which comprises sensible heat recycling type and latent heat recycling type heat exchangers. The heat exchangers conduct heating through burner units formed by a plurality of rich lean burners arranged in parallel. Lean spray nozzles (63) facing lean flow inlets of the rich lean burners and rich spray nozzles (64) facing rich flow inlets of the rich lean burners are arranged on gas manifolds (6) used for providing gas for the burner units. Even when operation is stopped and high-humidity air in the latent heat recycling heat exchangers reversely flows and dews at the rich spray nozzles, pour burning caused by spray nozzle hole blockage can not happen. According to the heat source machine, partition walls (68) which partition lean gas chambers (66) used for providing gas for the lean spray nozzles (63) and rich gas chambers (67) used for providing gas for the rich spray nozzles (64) are arranged on the gas manifolds (6). One or more communicating parts (69) used for making each lean gas chamber and the corresponding rich gas chamber communicated is formed on the corresponding partition wall (68). Gas is provided for the rich gas chambers (67) from the lean gas chambers (66) through the communicating parts (69). In addition, the total area of openings of the communicating parts (69) is smaller than the total area of openings of spray nozzle holes of the rich spray nozzles (64).

The invention relates to the technical field of electronic product detection, and discloses an efficient microphone sorting machine. The efficient microphone sorting machine comprises a frame; the frame is provided with a feeding mechanism and a detection mechanism. The feeding mechanism comprises a vibration disc and a distribution disc; the detection mechanism comprises a base block and a slide plate; baffle plates are arranged on the base block and at two sides of the slide plate; two parallel sliding poles are arranged between the baffle plates; a detection gap is arranged on the front of the slide plate; a sound hole is arranged on the base block and just below the detection gap; a detection pressure finger is arranged right above the slide plate; the front end of the detection pressure finger is provided with a detection head; a pressure spring is between the rear end of the detection pressure finger and the slide plate; a lifting cylinder is arranged on the slide plate; the shaft end of the lifting cylinder is provided with a horizontal pressure bar; a blanking channel penetrating through the top surface of the base block is arranged in the base block; the bottom of the blanking channel is provided with a two-way sorting mechanism; and the base block is provided with a horizontal cylinder for driving the slide plate to slide. The present invention has the beneficial effects of fast and stable feeding, and high testing and separation efficiency.

A method and an apparatus for operating a screening wheel filter for high-viscosity melts with pressures of more than 10 bar and temperatures of higher than 90 DEG C, wherein a screening wheel (1) is rotationally driven step by step, and screening inserts (2) arranged in the screening wheel (1) are successively subjected to a stream of cleaning agent produced by a cleaning agent drive (9) in a backflushing cleaning station, are to be optimized in such a way that less cleaning agent is used, better cleaning of the screening inserts takes place and a saving of energy is ensured. For this purpose it is proposed that the cleaning backflushing in the backflushing cleaning station takes place during the rotation of the screening wheel (1), wherein an open-loop or closed-loop control device (7) assigned to the cleaning agent drive (9) is used to set the amount of cleaning agent and / or the pressure of the cleaning agent and / or the flow rate of the cleaning agent in dependence on the rotational speed of the screening wheel (1) and / or in dependence on a differential pressure prevailing at the screening inserts (2) located in the melt channel (4) and the effective opening of the slot die normal to the radial is less than the distance covered by the screening wheel (1) during a driving step.

The invention relates to a discharge roller system with automatically adjustable distance, which comprises a power source and a plurality of groups of discharge rollers and is characterized in that each group of discharge rollers comprise at least two electrode rollers, wherein the bearing positions of both ends of one electrode roller are fixed, and the roller is called a fixed electrode roller; the bearings of both ends of the other electrode roller are arranged in a slidable groove, and the roller is called a movable electrode roller; and the fixed electrode roller or the movable electrode roller is coated with insulating dielectric material, a high-frequency high-voltage power source is connected with the fixed electrode roller and the movable electrode roller, and the gap between the electrodes is automatically changed and adjusted along with the change of the thickness of thin-film material or textile fabric. The invention can treat the surfaces of various surface materials by the dielectric-barrier plasma discharge generated under atmospheric pressure.

The invention discloses a road test information processing method and device. The method comprises the following steps of: receiving road test information sent by a road test terminal, if the received road test information is judged to meet a processing condition requiring waiting processing, placing the road test information into a road test information buffer queue to wait for processing, or else directly processing the road test information. By using the technical scheme of the invention, the problem of lower stability and reliability during road test information processing in the prior art is solved.

A belt breakage hydraulic protection apparatus for a belt conveyor comprises multiple belt breakage hydraulic protection apparatuses equipped on the belt conveyor, corresponding multiple sensors, a control system composed of a terminal programmable controller and multiple sub-station PLC programmable controllers via advanced communication modules, and multiple hydraulic pump stations, wherein the electric control system can acquire and judge the belt breakage signals in time and send out instructions without resulting in mistaken braking actions, the actuating mechanism of the belt breakage hydraulic protection apparatus employs the oil pumps of hydraulic pump stations and multiple airbag type accumulators to transport high pressure oil to a pull-push oil cylinder, a rotary cylinder and a lifting cylinder, the cylinders drive a top-rising beam below the upper belt to rotate and an up-pressing beam above the upper belt to move up and down to press the broken upper belt; the lifting cylinder lift a lifting beam to move up and down to press the broken lower belt. The top-rising, up-pressing beam and lifting beam have a case type structure, and friction plates are disposed between the beams and the belt contact surface to get big brake force and obvious brake effect, so that the conveyor will not generate loading stop phenomenon and abrade the belt.

The invention discloses a data transmission method and apparatus, a readable medium and an electronic device. The method comprises the steps of subscribing a notification instruction transmitted by a cloud to an EMQ server; determining authentication information of the notification instruction; if the authentication information meets a preset condition, determining to upload data based on the notification instruction; and transmitting the uploaded data to the EMQ server, so that the cloud subscribes to the uploaded data in the EMQ server. According to the technical scheme provided by the invention, the data of the cloud end and the edge end is transmitted through the EMQ server, so that the data of the edge end is prevented from being directly uploaded to the cloud end, even if the data volume is relatively large, the condition of data blockage is avoided, and the cloud end and the edge end can select contents through the subscription mode of the EMQ server, and the data transmission efficiency is improved.