80results about How to "Convenient follow-up maintenance" patented technology

The invention provides a novel detecting and isolating system for a fault of a RS-485 port, which comprises a bus and a plurality of slave nodes connected with the bus, wherein each of the slave nodes comprises an RS-485 communication circuit, an MCU (Micro Controller Unit) and a relay; the MCU is connected with a normally opened end of the relay and the RS-485 communication circuit; and the relay is connected with the RS-485 communication circuit and an RS-485 bus. The slave nodes of the novel detecting and isolating system for the fault of the RS-485 port can judge whether the RS-485 bus communication is abnormal or not. If the communication is abnormal, the slave nodes can automatically disconnect from the RS-485 system bus and can carry out data communication with the RS-485 communication circuit through IO ports of the slave nodes, so as to detect whether the RS-485 communication circuit can normally work or not.

The invention discloses a detachable cotton catching beater. The beater comprises a core shaft, a cylindrical rack body and multiple blades. The core shaft is inserted in the cylindrical rack body in a sleeving mode. A middle shaft sleeve is arranged in the cylindrical rack body. The core shaft is inserted in the middle shaft sleeve in a sleeving mode. The center of the core shaft is a spline shaft part. A spline bulge of the spline shaft part is inserted in a spline groove located in the inner side wall of the middle shaft sleeve in a sleeving mode. Two ends covers are located at two sides of the cylindrical rack body, and are fixedly connected with two end surfaces of the cylindrical rack body through bolts. Two ends of the core shaft protrude out of a through hole located in the center of the corresponding end cover. The outer side wall of the cylindrical rack body is provided with multiple spline connection bulge parts. Each blade comprises an annular sleeve ring. The outer wall of the annular sleeve ring is fixedly provided with an arc blade. The blade is convenient to install and dismantle. The subsequent repair, maintenance and cleaning are convenient. At the same time, the cylindrical rack body is simple in structure, convenient to install, good in effect, and low in fault rate.

The invention discloses an expandable stock market data transmission and display method, which comprises the following steps: adopting an interface description language to define a protocol file, wherein, the protocol file comprises protocol fields of stock market data; using an interface description language to define a protocol file; using an interface description language to define a protocol file. Using a translator to translate the protocol file into a source code of a preset language, wherein an enable bit of each protocol field is defined in the source code; the client end utilizing theenable bit setting interface to enable setting the protocol field requiring the requested data, and initiating a data request to the server end, wherein the data request includes the enable bit information of the protocol field requesting the data; the server receiving the data request and obtains the enable bit information. The server returns the data of the protocol field to the client according to the enable bit information. The invention can satisfy multi-terminal and multi-language, and can conveniently expand the field, and can reduce the data transmission amount and the transmission bandwidth by enabling the bit setting and selecting field transmission.

The invention discloses a data chart subscription method and a data chart subscription system. The data chart subscription method comprises the steps that a Web page is loaded with a subscription client and a data chart subscription request is sent to the subscription client according to uuid of a pre-rendered data chart; the subscription client sends a chart background data request to a subscription server; the subscription server searches for background data of the data chart by utilizing the uuid of the data chart and returns the background data to the subscription client; and the subscription client renders the data chart to the Web page. According to the method and system, the data chart is quickly and conveniently subscribed to a specified DIV container of the Web page through the uuid of the data chart, so that the development cycle can be effectively shortened and the addition and subsequent maintenance of the data chart are facilitated.

The embodiment of the invention provides a fault diagnosis testing method and device for a multi-path output chip and a storage medium, and belongs to the field of software development and automatic testing. The method comprises the following steps: establishing a configuration table, wherein the configuration table at least comprises an output channel ID and a standard value corresponding to theoutput channel ID; collecting output values of the specified or all output channels; comparing the output value with a standard value corresponding to an output channel ID in the configuration table;judging whether a fault occurs or not according to a comparison result; and outputting alarm information when a fault occurs. Meanwhile, the invention further provides a diagnosis test device adoptingthe fault diagnosis test method. According to the invention, information related to channel output is managed in a unified manner, so that the code execution and test efficiency is improved, subsequent maintenance and upgrade are facilitated, and the method can be applied to various occasions.

The invention relates to a large-span railway steel bridge end telescopic device which comprises a guide sliding groove, a middle transition plate and side transition plates. The guide sliding grooveis matched and mounted at the upper part of a ballast bed of a railway steel bridge; the middle transition plate is fixedly installed on the upper part of the guide sliding groove in a matched mode. The side transition plates are arranged on the two opposite sides in the width direction in a matched mode. Movable steel sleepers, fixed steel sleepers and concrete turnout sleepers are arranged at the upper parts of the ballast beds on the outer sides of the two ends of the middle transition plate and the side transition plates in the length direction; the movable steel sleepers, the fixed steelsleepers and the concrete turnout sleepers are arranged in the width direction of the middle transition plate and the side transition plates. The two ends of the movable steel sleepers and the fixed steel sleepers in the length direction are matched and connected with the side transition plates through connecting rod telescopic mechanisms; steel rails of the railway steel bridge are fixedly mounted at the upper parts of the side transition plates, the movable steel sleepers, the fixed steel sleepers and the concrete turnout sleepers. The large-span railway steel bridge end telescopic device issimple and reasonable in structural design, convenient to install and lay, convenient to maintain subsequently and suitable for super-large telescopic displacement.

The invention discloses a plug type circuit sealing device, which comprises a mobile sealing body arranged on a drill collar matrix in a pluggable way. The mobile sealing body further comprises a sealing base and an arc-shaped sealing top cover, wherein the sealing base is provided with an accommodating chamber used for accommodating a circuit board, the arc-shaped sealing top cover is buckled on the sealing base, the top end of the arc-shaped sealing top cover forms an arc-shaped surface which is matched with the surface of the drill collar matrix; the surface of the sealing base, corresponding to the arc-shaped sealing top cover, is provided with a sealing groove, a sealing ring is arranged in the sealing groove; and the arc-shaped sealing top cover is also provided with a plug which is matched with the internal structure of the drill collar matrix, and the plug is electrically connected with the circuit board through a wire. The invention realizes the rapid plug connection, greatly facilitates the installation and follow-up maintenance of the equipment, and simultaneously, ensures that the circuit board can be well sealed to be prevented from being damaged by the fluid through the drill collar.

The invention discloses a novel chemical laboratory hoisting system. A bottom plate is arranged at the bottom of a main frame, the main frame is further provided with a motor base, a pushing rod motoris arranged on the motor base, a lifting arm shaft fixing piece is arranged on the outer side of the main frame, a lifting arm shaft is arranged on the lifting arm shaft fixing piece, a fluorescent lamp is arranged on the lifting arm shaft fixing piece, and the lower portion of the lifting arm shaft is connected with a lifting arm beam; the lifting arm beam is connected with the pushing rod motor, the bottom of the lifting arm beam is provided with a lifting arm shaft decorating cover, a lifting arm terminal box is arranged below the lifting arm shaft decorating cover, and a panel of the lifting arm terminal box is provided with a first network socket, a second network socket, a standby socket, a power supply socket and a touch screen; the bottom of the lifting arm terminal box is provided with a water supply joint and a draining joint; and the main frame is further provided with a ventilating device. According to the novel chemical laboratory hoisting system, the planning pattern andthe fixed teaching mode of a traditional laboratory are changed, and discussion free combination during experiment of students and splicing free combination of experiment tables are achieved; and theory teaching and experiment teaching are combined into one room.

The invention discloses a controller program downloading circuit. The controller program downloading circuit comprises a watchdog reset circuit and an amplification circuit both connected with a controller. Circuit protection is realized through the watchdog circuit; the working mode of the watchdog circuit is controlled through setting high and low electric levels of both TEST and WDT; the amplification circuit is connected with the controller through a serial pot bus interface to realize conversion between a RS232 electric level and a TTL electric level; the controller is enabled to be in a UART Bootloader mode through setting the working mode of the controller. The controller program downloading circuit solves the instability of using a serial port for downloading in a controller program downloading process, selects a reliable downloading mode, is convenient for subsequent maintenance and upgrading, saves cost and provides reliability as the bootload circuit is improved currently, and improves the system stability as the original triode is replaced by an MAX223 circuit and the TTL electric level is used for controlling each timing sequence pin.

The invention discloses an induction heating solid hydrogen storage and desorption system and a hydrogen storage and desorption method. A solid hydrogen storage tank is made of a magnetic material, the solid hydrogen storage tank body serves as a heating body, a magnetic field generated by an electromagnetic coil acts on a storage tank body, so that the storage tank body generates eddy current to generate heat and heat a hydrogen storage material in the solid hydrogen storage tank, and therefore the heating rate of the hydrogen storage material is increased, when hydrogen storage is conducted, hydrogen enters the solid hydrogen storage tank through an air inflation branch, when the hydrogen is supplied to the outside, a cooling device is arranged at the outlet position of the hydrogen storage tank, a temperature sensor at the rear end of the cooling device is used for monitoring the temperature in a main pipeline in real time, and a filtering device is used for filtering out fine hydrogen storage material dust in gas, so that cooling and dedusting are conducted on the hydrogen. According to the induction heating solid hydrogen storage and desorption system and the hydrogen storage and desorption method, the system not only can blow gas to pipelines and parts so as to remove the hydrogen and facilitate subsequent maintenance, but also can recycle the blown and removed hydrogen and inert gas, so that the cost is greatly reduced.

The invention discloses an oil tank for a dry type lubricating system. The oil tank comprises an oil tank body and an oil outlet pipe joint; the oil outlet pipe joint is detachably connected with theoil tank body, and a filter net for filtering oil is arranged on the oil outlet pipe joint. According to the oil tank for the dry type lubricating system, the detachable oil outlet pie joint integrated with the filter net is adopted, and the subsequent maintaining is facilitated.

The invention aims to provide the rear table plate of a seat, which is simple in structure and more comfortable to use. In order to achieve the purpose, the invention adopts the following technical scheme: The rear table plate of the seat comprises a seat and a table plate, two rotating shafts arranged in the left-right direction are arranged on the back side of the seat, the two rotating shafts are respectively a first rotating shaft fixed with the first connecting rod and a second rotating shaft fixed with the second connecting rod; the front end of the first connecting rod is fixed with thefirst rotating shaft; the rear end of the first connecting rod is rotatably fixed with the table plate; the front end of the second connecting rod is fixed to the second rotating shaft, the rear endof the second connecting rod is rotatably fixed to the table plate, the first rotating shaft is located on the upper side of the second rotating shaft, the rear end of the second connecting rod is located between the front edge of the table plate and the rear end of the first connecting rod, and each rotating shaft is matched with a driving motor which operates to drive the rotating shaft to rotate.

The invention discloses a positioning stand column for an inclined cantilever. The positioning stand column comprises a positioning pipe (1) and a support (2). The support (2) comprises an insertion portion (2-1) inserted into one end of the positioning pipe (1), a transition table (2-2) is arranged on the insertion portion (2-1), a fixing plate (2-3) for supporting the inclined cantilever is arranged on the transition table (2-2), a connecting hole (2-31) is formed in the fixing plate (2-3), a U-shaped bolt (3) connected to the interior of the connecting hole (2-31) to fix the inclined cantilever is arranged on the fixing plate (2-3). A groove (2-32) for containing the inclined cantilever is formed in the fixing plate (2-3). A fixedly-connected rivet (4) is arranged on the support (2) and the positioning pipe (1). By adopting the structure, the numbers of positioning rings, positioning pipes and fasteners are decreased, on-site construction and installation and follow-up maintenance are convenient, the product safety is improved, and potential operational risk is reduced.

The invention provides a multifunctional electric heater. The multifunctional electric heater comprises a first shell, a fan, a piston, a telescopic component and a heating component; a first cavity and a second cavity are arranged inside the first shell; the bottom of the side wall of the first cavity communicates with the bottom of the side wall of the second cavity; the top of the side wall ofthe first cavity communicates with the top of the side wall of the second cavity; the top of the side wall of the second cavity away from the first cavity is provided with an air inlet; the top of theside wall of the first cavity away from the second cavity is provided with an air outlet; the fan is installed in the air inlet; the piston is in sliding and sealed connection with the side wall of the second cavity; the telescopic component is installed in the second cavity; one end of the telescopic component is fixedly connected with the piston; the telescopic component is used for driving thepiston to slide along the side wall of the second cavity; and the heating component is installed in the first cavity. The multifunctional electric heater provided by the invention has the functions of air humidification and air heating, and can humidify or heat indoor air as required.

The invention relates to a mobile electrical cabinet. The cabinet comprises a track plate and a cabinet group. The cabinet group is mounted at the lower end of the track plate in a sliding fit manner.The invention relates to the mobile electrical cabinet. According to the invention, the electrical cabinet is used based on the design concept of mobile multi-stage wire arrangement; the electrical cabinet can be installed on the top of a wall, and the mounting position of the electrical cabinet on the top of the wall can be determined as required; the mobile electrical cabinet occupies a small area, which saves ground space; the whole placing space is tidy and clear; a wire arrangement board provided by the invention can arrange wires outside the electrical cabinet; the wires can be horizontally routed along the top of the mounting wall, which avoids disorder with other wires and a phenomenon of hanging falling, and facilitates subsequent maintenance; and concave arc grooves in the wirearrangement board can play a role in limiting and fixing the wires placed thereon, so as to prevent movement of the wires.

The invention provides an intelligent detection device for a rope. The device comprises a walking part, a pair of first telescopic parts, a clamping part, a microprocessor and a pair of imaging devices. The walking part comprises a pair of driving wheels. The clamping part comprises a left hinge and a right hinge. The left hinge and the right hinge are in a connected state when using the intelligent detection device for the rope. The first telescopic part presses the walking part on two sides of the rope, and the rotation direction of the pair of driving wheels is opposite, so that friction forces in a same direction is formed between the pair of driving wheels and the rope, thereby driving the intelligent detection device for the rope to move on the rope. The imaging device transmits a video signal to the microprocessor, and the microprocessor uses a wireless transmitter to output the video signal to a video terminal processor, so that an intelligent detection function is realized, and a manual high-altitude operation is avoided.

The invention discloses a simple installation type bale plucking beater. The simple installation type bale plucking beater comprises a core shaft, a cylinder frame body and multiple blades, the core shaft is sleeved with the cylinder frame body in an inserting mode, the inside of the cylinder frame body is provided with a middle shaft sleeve, the core shaft is sleeved with the middle shaft sleeve in an inserting mode, the outer side wall of the middle shaft sleeve is fixed to multiple support rods, the other ends of the support rods are fixed on the inner side wall of the cylinder frame body, and the two end caps are located at the two sides of the cylinder frame body; the inner side walls of the two ends of the cylinder frame body are fixed to annular rings, positioning sleeves are sleeved with the annular rings in an inserted mode, the outer side walls of the positioning sleeves are fixed to multiple main support rods, the outer ends of the multiple main support rods are fixed on the inner side walls of the annular rings, the outer side walls of the positioning sleeves are provided with multiple inserting holes, the outer ends of the inserting holes are fixed to positioning rings, the positioning rings are sleeved with the adjusting columns in an inserting mode, the outer ends of the adjusting rods are formed with handholding parts, and the handholding parts are pressed on the outer side walls of the positioning sleeves. The blades of the simple installation type bale plucking beater is convenient to install and dismount, and convenience is brought to subsequent repair, maintenance and removal; meanwhile, the cylinder frame body is simple in structure.

The invention discloses an environment-friendly water tank tricycle. The environment-friendly water tank tricycle comprises a tricycle body, a tricycle seat arranged in front of the tricycle body and a supporting plate arranged in the rear of the tricycle seat; a supporting rod is further fixed to the supporting plate in the rear of the tricycle seat longitudinally; a solar cell panel is fixed to one side of the upper part of the supporting rod, a storage battery electrically connected with the solar cell panel is installed at the bottom of the supporting plate, and the storage battery is electrically connected with an electric energy engine of the water tank tricycle. Compared with the prior art, the environment-friendly water tank tricycle has the following advantages that the solar cell panel and the electric energy engine are arranged, so that the solar energy is fully utilized, and the environmental and cost problems caused by burning gasoline are solved; a three-phase valve is arranged between pipelines, so that the whole pipeline is simple and clear, and the appearance is clear and subsequent arrangement and maintenance are convenient; and a foldable bracket is detachably installed behind the water tank tricycle, and subsequent installation, maintenance, storage and the like are more convenient.