14results about How to "Small and portable" patented technology

A vehicle-mounted support for conveniently replacing a wheel relates to the technical field of agricultural machinery accessories, and when the wheel needs to be replaced, only one person can lift an agricultural machine by using the vehicle-mounted support, so that the wheel replacement difficulty and workload are greatly reduced; comprising a mounting seat and a supporting bracket, and one end of the mounting seat is used for integrally mounting the vehicle-mounted bracket; a mounting hole is formed in the other end of the mounting seat, and one end of the supporting bracket is rotationally connected with the mounting seat through the mounting hole; the other end of the supporting bracket is a supporting end, and the supporting end extends towards the left side or the right side or any one side to form an extending supporting part.

The utility model provides a heat dissipation device and a nuclear power excitation simulation machine, and relates to the technical field of heat dissipation equipment, the heat dissipation device comprises an air guide pipe and an airflow guide piece, the air guide pipe is vertically arranged, and the air guide pipe is provided with a top end and a bottom end; the airflow guiding piece is arranged at the top end of the air guiding pipe and provided with a first air inlet, a first air outlet and a cavity, a partition plate is arranged in the cavity, the cavity is divided into an air inlet cavity and an air outlet cavity through the partition plate, the first air inlet is communicated with the air inlet cavity, the air inlet cavity is communicated with the air guiding pipe, and the first air outlet is communicated with the air outlet cavity. A second air inlet communicated with the bottom end is formed in the bottom of the air outlet cavity. According to the device, cold air enters from the top end, and hot air subjected to heat exchange is discharged from the top end, so that dust and other impurities in the air at the bottom can be effectively prevented from entering the equipment, the heat dissipation effect can be guaranteed, and the performance of the equipment can be guaranteed.

This invention provides a heat exchange device for waste heat utilization and cold-end corrosion prevention, comprising an air inlet box, a heat exchange box, a negative pressure device, an air outlet main pipe, a hot air return pipe, and several heat exchange units. The heat exchange box has a waste heat channel. Each heat exchange unit has two ends connected to the air inlet box and the input end of the negative pressure device, respectively, and each heat exchange unit extends through the waste heat channel. The negative pressure device is connected to the air outlet main pipe. The air outlet main pipe is also connected to one end of the hot air return pipe. The other end of the hot air return pipe extends into the waste heat channel, then extends out from the waste heat channel and connects to the air inlet box, thereby returning a portion of the high-temperature air after heat exchange to the air inlet box. This heat exchange device can increase the air temperature drawn into the heat exchange units, preventing the formation of a corrosive ash layer at the cold end of the heat exchange units due to excessively low temperatures, completely solving the technical problem of corrosive ash accumulation inside the device, extending the service life of the heat exchange device, and saving maintenance and repair costs.

The utility model belongs to the technical field of separation devices, and particularly relates to a dioctyl terephthalate distillation system which comprises a distillation tower, a plurality of tower plates arranged in the distillation tower, a heat exchanger connected to the bottom of the distillation tower, a product storage tank connected to the top of the distillation tower and a stirring assembly arranged in the distillation tower, the stirring assembly comprises a stirring paddle and a spiral stirrer, the stirring paddle is located at the bottom of the distillation tower, a plurality of corrugated plates and a plurality of flow guide covers are arranged in the distillation tower, the corrugated plates are located above the flow guide covers, and the flow guide covers are located above the stirring paddle. According to the utility model, the space in the distillation tower is divided into three parts according to functions, and each section adopts a proper internal component, so that the optimization of the distillation effect is realized.

The utility model relates to an adjustable road construction drawing design scale, which comprises a scale body, a mounting seat and an adjusting support piece, a base hole penetrating along the thickness direction of the scale body and a plurality of insertion holes are arranged on the scale body, and the plurality of insertion holes and the base hole are arranged along the length direction of the scale body; the mounting seat is rotationally arranged on the scale body, a through mounting hole is formed in the mounting seat, and the mounting hole axially corresponds to the base hole; the adjusting supporting piece is arranged in the mounting hole and the base hole in a penetrating mode, the adjusting supporting piece is in threaded connection with the mounting hole, one end of the adjusting supporting piece is provided with a conical head supporting part, and the conical head supporting part can protrude out of the bottom of the scale body or retract into the base hole. The design ruler integrates the functions of drawing circles and arc lines, the number of compasses can be reduced, the number of drawing tools needing to be carried by an engineer for outdoor operation can be reduced, meanwhile, the operation that the engineer switches the tools in the drawing process can be reduced, the drawing efficiency is improved, and the diversified requirements of drawing design in the early stage of road construction are better met.

The utility model provides a kind of water-lifting test auxiliary equipment, it is related to drilling equipment auxiliary instrument technical field, including core tube and opening and closing mechanism.Core tube includes mutually fixed connection's water storage part and inlet portion, two parts are hollow cylinder, connecting place forms conical slope face;Opening and closing mechanism is arranged in core tube, including connecting rod and the plug and card control that are fixedly arranged in the both ends of connecting rod, plug is the sphere that is arranged in water storage part inside, card control is the cylinder that is arranged in inlet portion bottom, connecting rod makes linear motion along the axis direction of inlet portion.Utilize this water-lifting test auxiliary equipment, when drilling work is carried out, equipment is simple and convenient to use and easy to carry, can reduce field construction when water-lifting test difficulty and cost, help to carry out water-lifting test.

The utility model relates to the technical field of grease production, one embodiment of the utility model provides a screw press for preparing grease from oil plants, the screw press comprises a workbench, the top of the workbench is fixedly connected with a supporting frame, the side face of the supporting frame penetrates through and is fixedly connected with a machine body, and the top of the machine body penetrates through and is fixedly connected with a feeding port; the bottom of the machine body is fixedly connected with a liquid outlet and a waste pipe in a penetrating mode, and the bottom of the machine body is fixedly connected with a liquid outlet and a waste pipe in a penetrating mode. In addition, through cooperation of the driving gear, the toothed bar, the hydraulic bin and other assemblies, the screen is driven to repeatedly move downwards and bounce upwards to be restored, so that waste passing through the screen and squeezed oil can be better screened, the oil outlet efficiency is improved, and meanwhile the possibility that the squeezed oil is carried by the waste and discharged out of a waste pipe together with the waste is reduced.

The application discloses an electric propeller, an aircraft and a cluster control method, relates to the technical field of aircrafts, and discloses the electric propeller, which comprises a propelling main body, a capturing mechanism and a propelling device, the propelling main body comprises gas inlets and ion outlets arranged at two ends of the propelling main body, the gas inlets are communicated with the external environment to supply gas into the propelling main body, and the ion outlets are communicated with the external environment; the capturing mechanism is arranged in the propelling main body and close to one side of the gas inlets, and can capture gas in a rarefied atmosphere; the propelling device is arranged in the propelling main body and close to one side of the ion outlets and is communicated with the capturing mechanism, can ionize the gas captured by the capturing mechanism to obtain environmental gas ions, and can discharge the environmental gas ions after acceleration from the ion outlets, so that a large amount of propellants carried with the aircraft is not needed, long-term tasks can be completed, and the application range is wider. The aircraft disclosed by the application can reduce the launch mass and cost of the aircraft, and the cluster control method can reduce the vulnerability of the aircraft system.

This utility model relates to the field of fermented soybean paste processing technology, specifically a drying yard with a dust-proof structure, including a preparation area component, and a drying area component installed on the right side of the preparation area component. The improved drying yard has a light-transmitting film on the outer walls of the first support frame, the first crossbeam, the second support frame, and the second crossbeam, allowing the drying yard to be enclosed without blocking sunlight. The shading cloth is adjusted using pulleys, belts, and fixing blocks, and the indoor temperature is regulated by installed ventilation fans and dust filters, reducing temperature fluctuations and preventing the entry of dust, flying insects, and other contaminants. Furthermore, changing cabinets are provided to reduce the amount of external contaminants brought in by workers, further reducing hygiene hazards during the sauce production process and lowering food safety risks. At the same time, the enclosed drying yard is less affected by weather conditions, enabling large-scale production, improving production efficiency, preventing excessive moisture evaporation, and ensuring more uniform fermentation of the sauce.

The utility model discloses an integrated continuous flow Fenton reaction device. Comprising a first pH adjusting tank, a reaction tank, a second pH adjusting tank, a flocculation tank and a sedimentation tank which are sequentially communicated and are of an integrated structure; the right upper part of the first pH regulating tank is connected to the reaction tank through an overflow port; the bottom of the reaction tank is connected to a second pH regulating tank through a pipeline; a water outlet in the upper part of the second pH regulating tank is connected to the flocculation tank; the top and the bottom of the flocculation basin are connected to the sedimentation basin through a pipeline; a sludge discharge port and a clear water discharge port are formed in the bottom of the sedimentation tank, and clear water at the upper part is discharged through an overflow weir; drain valves are arranged at the bottoms of the first pH regulating tank and the reaction tank and are used for emptying residual liquid during cleaning. According to the utility model, efficient cooperation of Fenton reaction and flocculation precipitation is realized through a multi-stage continuous flow design, and the problem of low efficiency of traditional intermittent treatment is solved.

The stabilizer comprises a main body, a microphone module and a light supplement lamp module, the main body comprises an adjusting mechanism and a handheld part, the adjusting mechanism is rotatably connected with the handheld part, a fixing assembly is arranged on the adjusting mechanism, and the fixing assembly is used for fixing a shooting device; the microphone module is arranged in the adjusting mechanism, the light supplement lamp module is arranged on the adjusting mechanism, and the lens of the shooting device, the sound receiving opening of the microphone module and the light emitting surface of the light supplement lamp module are consistent in direction. The stabilizer, the microphone and the light supplement lamp are configured as a whole, so that the stabilizer has more functions to meet the use needs in more shooting scenes. The carrying of accessories is reduced, the connection of accessories is reduced, the entanglement problem between connection lines is avoided, the burden of the user during shooting is reduced, and a better use experience is brought to the user.

The application discloses a kind of MR information backfilling method and system based on big data, method steps include: obtaining the S1-MME data and S1UHTTP data of mobile terminal, and according to the S1-MME data and S1UHTTP data extraction key information data;The key information data is classified and normalized based on time series, to obtain the linear relationship of key information data;MR original data of mobile terminal is obtained, the MR original data is aggregated and classified, and the MR original data after aggregation classification is flattened, to obtain flattened MR data;The linear relationship of the flattened MR data and key information data is fused to fill MR data with information backfilling.The application solves the problem that the data correlation time of 100 million data is relatively long, improves the backfilling rate and accuracy through linear time queue, so that MR data carries key information, simplifies the backfilling process.