1258results about How to "Reduce space consumption" patented technology

The invention relates to the technical field of computer storage, and discloses a computer memory data processing system, which comprises the following modules: an intelligent cache prefetching module, which is used for predicting a future memory access address based on deep learning and reinforcement learning technologies and loading data into a cache in advance; the heterogeneous storage management module is used for dynamically classifying the data based on the data popularity value and realizing migration of the data among different storage media; and the storage consistency guarantee module is used for managing the data consistency among different storage layers through the improved MES I protocol. Cache prefetching is optimized by introducing deep learning and reinforcement learning technologies, and by predicting a future memory access address in real time and loading data in advance, the system effectively reduces the cache missing rate, improves the cache hit rate, remarkably reduces the memory access delay, and improves the memory access efficiency. And the system can keep more efficient data access performance in a large-scale data processing scene.

The utility model relates to the technical field of motor manufacturing equipment, and discloses a magnetic ring core sleeve press-fitting module which comprises a rotating disc device, and a core sleeve feeding station, a first alignment station, a magnetic ring pressing station and a discharging station which are distributed at intervals in the circumferential direction of the rotating disc device. The tool base assemblies are arranged on the rotating disc in the circumferential direction at intervals, and the tool base assemblies are used for supporting and limiting the core sleeves and the magnetic rings; the core sleeve feeding device is used for feeding core sleeves; the first alignment device is used for driving the core sleeve on the tool base assembly to rotate around the vertical axis to a preset angle; the magnetic ring feeding device is arranged between the first alignment station and the magnetic ring pressing station, and the magnetic ring feeding device is used for feeding magnetic rings; and the magnetic ring pressing device is used for pressing the magnetic ring above the core sleeve. According to the magnetic ring core sleeve press-fitting module provided by the utility model, the magnetic ring is automatically press-fitted on the core sleeve, and a plurality of stations operate respectively at the same time, so that the production efficiency is improved, the consistency of products is ensured, the labor cost is reduced, and the occupied space in a workshop is reduced.

The present invention discloses a universal arm and a rock drill for tunnel construction. The universal arm comprises a boom, a front support is provided at the front end of the boom, a guide rail sliding frame is rotatably provided on the front support through a first pivot, a guide rail sliding frame rotation driving oil cylinder is connected between the guide rail sliding frame and the front support; a guide rail support is rotatably provided on the guide rail sliding frame through a second pivot parallel to the bearing surface of the front support, and a flip driving device for driving the guide rail support to flip is provided between the guide rail support and the guide rail sliding frame rotation driving oil cylinder. The rock drill for tunnel construction is composed of a universal arm and a step-type rock drill provided on the universal arm. The beneficial effects of the present invention are that the universal arm has a simple structure, occupies less space, is light in weight, and has reliable functions. The rock drill for tunnel construction gives full play to the technical advantages of the step-type rock drill and the universal arm, provides guarantee for the mechanized operation of tunnel construction, has high construction efficiency, and low construction cost.

The utility model discloses a two-shaft mixing pump. The two-shaft mixing pump is characterized by comprising a pump body and two connecting shafts, a roots pump body cavity and a screw pump body cavity which are mutually independent are arranged in the pump body; the pump body is provided with an air inlet, an air outlet and a connecting channel, the roots pump body cavity is communicated with the outside atmosphere through the air inlet, the screw pump body cavity is communicated with the outside atmosphere through the air outlet, and the roots pump body cavity is communicated with the screw pump body cavity through the connecting channel. Two roots rotor parts which are meshed with each other are arranged in a cavity of the roots pump body, and the two roots rotor parts are respectively arranged on the two connecting shafts; and two screw rotor parts which are meshed with each other are arranged in a cavity of the screw pump body, and the two screw rotor parts are respectively mounted on the two connecting shafts. According to the utility model, the occupied space is reduced, the vacuum degree is improved, and the cost is reduced.

The invention relates to the technical field of photovoltaics, and discloses a TBC battery structure capable of automatically forming gap areas and a PVD preparation method thereof.The TBC battery structure comprises a silicon substrate, p + areas and n + areas are arranged on the back surface of the silicon substrate, the height positions of the p + areas and the n + areas on the back surface of the silicon substrate are staggered to form steps, and the steps are arranged on the back surface of the silicon substrate. A gap region is formed on the side wall of the step connecting the p + region and the n + region, and the gap region is used for electrically isolating the p + region and the n + region; the p + region comprises a first tunneling oxide layer, a p-poly layer, a second tunneling oxide layer and an n-poly layer which are sequentially deposited on the silicon substrate; and the n + region is provided with a second tunneling oxide layer and an n-poly layer which are sequentially deposited on the silicon substrate. According to the invention, the p-poly is superposed with the n-poly to form the tunnel junction, so that the n-poly on the p-poly can be directly prevented from being removed by using the second laser, the damage of the laser to the crystalline silicon layer on the surface is avoided, meanwhile, a laser grooving process is reduced, and the production cost is greatly reduced.

The invention provides a photosensitive imager (10). The photosensitive imager (10) comprises an automatic warehouse entering and exiting device (11); the photosensitive chip assembly (65) is arranged on the automatic in-out device (11) and is configured to move between a first position inside the photosensitive imager (10) and a second position extending out of the photosensitive imager (10) along with the automatic in-out device (11); and a backlight assembly (66) disposed inside the photosensitive imager (10) and facing the photosensitive chip assembly (65) in the first position. The photosensitive imager is short in imaging distance, short in collection light path, small in light loss, high in sensitivity, capable of obtaining image data in a short time and small in appearance size.

The invention discloses a miniature zero differential type double-flow transmission gear reduction box which comprises a box body shell, a straight transmission gear set, a steering transmission gear set, a first planetary differential mechanism, a second planetary differential mechanism, a first output gear set and a second output gear set. The straight transmission gear set, the first planetary differential mechanism and the first output gear set are arranged on one side in the box shell, and the steering transmission gear set, the second planetary differential mechanism and the second output gear set are arranged on the other side in the box shell. The first planetary differential mechanism and the second planetary differential mechanism are coaxially arranged and arranged at the two ends of the sun gear shaft correspondingly. The miniature zero differential type double-flow transmission gear reducer can be installed on a miniature crawler-type power platform, has the advantages of being small in size and high in universality, overcomes the defect that crosstalk exists in straight moving power input and steering power input, and achieves high-precision and high-stability rotating speed and torque output of the two extended output shafts.

The invention relates to the technical field of chip packaging, and discloses a chip sealing box dam preparation method, device and equipment and a medium, and the method comprises the steps: obtaining box dam parameters, and determining a plurality of target edges and a plurality of target angles according to the box dam parameters; controlling the printing head to rotate to a preset initial position; the loading mechanism is controlled to rotate, the plane where the printing head is located is made to be perpendicular to the multiple target edges in sequence, the printing head is moved according to the first preset track requirement, and printing of the target edges in the box dam is completed; and the loading mechanism is controlled to rotate, the printing head and the center lines of the multiple target angles are sequentially located in the same plane, the printing head is moved according to the second preset track requirement, and printing of the target angles in the box dam is completed. The closed structure is finally formed by printing the edges and the corners of the box dam, sealed printing of the box dam in the sample wall is achieved, the sealing effect is good, the device is suitable for stacked printing of the box dams with different heights, printing is more flexible, space is saved, and the sealing requirements of the high-density and small-size box dams are met.

The utility model relates to the technical field of mobile phone heat dissipation films, in particular to a high-heat-conduction mobile phone middle frame graphite heat dissipation film which comprises a heat dissipation film body, the heat dissipation film body sequentially comprises matte black single-faced adhesive tape, a high-heat-conduction graphite layer and double-faced adhesive tape from top to bottom, the high-heat-conduction graphite layer is formed by stacking low-temperature carbonization layers and is 0.2 mm in thickness, and the high-heat-conduction graphite layer is formed by stacking low-temperature carbonization layers. The low-temperature carbonization layer is formed by graphene through low-temperature carbonization treatment, the heat conductivity coefficient reaches 2000-2100 W / M.K, energy consumption is reduced through low-temperature treatment, the production cost is indirectly reduced due to the low temperature requirement, the graphene is subjected to low-temperature carbonization treatment, the lattice defect density is reduced, and the stability of the heat conductivity coefficient is ensured; and meanwhile, the 0.2 mm high-thermal-conductivity graphite layer is formed by stacking the low-temperature carbonization layers, so that the occupied space of the heat dissipation film body in the middle frame is reduced.

The utility model discloses a rotary base for a terminal machine, which comprises a supporting base, a rotating shaft, a supporting plate assembly and a rotary motor, the rotating shaft is rotatably arranged on the supporting base, the supporting plate assembly is fixed at one end of the rotating shaft and can rotate along with the rotating shaft, and at least two mounting surfaces are formed on the supporting plate assembly. The at least two mounting surfaces are at least used for mounting a peeling and wire twisting mechanism and a terminal crimping mechanism, and a rotating motor is fixed on the supporting base, is connected with the rotating shaft and drives the rotating shaft to rotate. The rotating base adopts a rotating mode to switch other operating mechanisms in the terminal machine, and compared with a traditional translation mode, the rotating base is simpler in overall structure, fewer in parts and higher in stability.

The invention discloses a synchronous monitoring system and method for non-methane total hydrocarbon and volatile organic compound components, and belongs to the technical field of environmental monitoring. Comprising an adsorption tube and a monitoring assembly, the adsorption tube is detachably connected with the monitoring assembly, the monitoring assembly comprises a focusing tube, a six-way valve, a four-way valve and a gas chromatograph, and the four-way valve and the six-way valve are each provided with an emptying flow path; the six-way valve is respectively communicated with the focusing tube and the capillary chromatography sampling assembly, and the capillary chromatography sampling assembly, the capillary chromatographic column and the mass spectrometry detector are sequentially communicated; a heating assembly is arranged outside the adsorption tube, a temperature control device is arranged outside the focusing tube, a thermal desorption temperature control area is arranged outside the focusing tube, the six-way valve and the four-way valve, and a column oven is arranged outside the capillary chromatographic column. Synchronous monitoring of non-methane hydrocarbon and VOCs components is achieved through the same monitoring assembly, the occupied space is reduced, the monitoring range is expanded, meanwhile, the sampling volume of the adsorption tube is flexible and controllable, and the sample preservation time is long.

The utility model discloses an implantation device and discloses a forming machine with the implantation device, and the implantation device comprises a vibration feeding mechanism, a first moving assembly, a second moving assembly, a third moving assembly and a fourth moving assembly, the vibration feeding mechanism comprises a vibration disc and a first moving assembly, and the vibration disc is used for conveying products; the arrangement mechanism comprises material channels used for allowing products from the vibration disc to pass through, the multiple material channels are distributed side by side in the moving direction of the vibration disc, each material channel comprises a flow guide groove and a positioning groove communicated with the flow guide groove, and the flow guide grooves are used for being communicated with the vibration disc; the material carrying mold is provided with a plurality of containing cavities used for containing products, and the containing cavities are arranged on the top face of the material carrying mold in an array mode; and the implanting mechanism comprises a material taking assembly for taking the products and a second moving assembly for driving the material taking assembly to move, and the material taking assembly is used for implanting the multiple products into the containing cavity from the positioning groove, so that the implanting efficiency of the implanting device can be improved.

The invention discloses O-shaped ring whole mold full-inspection equipment and a detection method thereof. The O-shaped ring whole mold full-inspection equipment comprises a detection table; the mounting table is fixedly mounted at the top of the detection table; the translation turnover mechanism is fixedly connected to the top of the detection table; the fixing tool is fixedly mounted in the translation turnover mechanism; the detection mechanism is located at the top of the fixing tool, and the top of the detection mechanism is fixedly connected with the bottom of the mounting table; and the positioning mechanism is located at the bottom of the fixing tool, and the bottom of the positioning mechanism is fixedly connected with the top of the detection table. The invention aims to solve the technical problems that when the existing O-shaped ring detection equipment is used for detecting the surface defects of the O-shaped ring, the O-shaped ring and a die of the O-shaped ring are inconvenient to automatically turn over and discharge, and manual work is needed to participate in turning and discharging operation, so that the labor cost is increased, and the detection efficiency of the surface defects of the O-shaped ring is reduced.

The invention relates to a folding house with an aluminum alloy frame structure, and belongs to the technical field of buildings. The invention relates to a multi-functional greenhouse which comprises a supporting mechanism, a bottom mechanism, a roof mechanism, a side face mechanism, a gable mechanism and a connecting mechanism, the supporting mechanism comprises a bottom supporting piece, a stand column piece and a top supporting piece, the lower end of the stand column piece is connected with the bottom supporting piece, and the upper end of the stand column piece is connected with the top supporting piece; the upper end of the side face mechanism is slidably connected with the roof mechanism, the lower end of the side face mechanism is slidably connected with the bottom mechanism, the two gable wall mechanisms are connected and hinged to the two ends of the stand column piece respectively, and the bottom mechanism and the bottom supporting piece, the roof mechanism and the top supporting piece and the gable wall mechanisms and the stand column piece are hinged through connecting mechanisms. The container house has the effect that the problems that a container house is heavy and not easy to disassemble and assemble are solved.

The invention discloses a self-adaptive expansion real-time unmanned aerial vehicle flight abnormal state recognition method and system, and the method comprises the steps: obtaining a baseline feature group from historical unmanned aerial vehicle flight log data, and building an anomaly detection model; data features of the unmanned aerial vehicle sensor are collected in real time, and the real-time data features are used to carry out adaptive expansion updating on the anomaly detection model; evaluating whether the flight state of the unmanned aerial vehicle is normal or abnormal according to the matching condition of the real-time data features and the baseline feature group; when the abnormal flight state is recognized, attribution analysis is carried out, and a disposal instruction is issued. According to the method, the flying unmanned aerial vehicle can be detected in real time, the expansibility is good, the adaptive expansion capability is provided for unmanned aerial vehicles of similar models, the algorithm complexity and the model space occupation are low, direct deployment at a terminal is easy, various types of abnormal flight states can be accurately detected, and the abnormal reasons can be accurately analyzed.

The visual Eustachian tube examination and treatment device with the suction function comprises an Eustachian tube endoscope, a sheath tube indexing and transposition locking assembly and a balloon assembly, wherein the balloon assembly is arranged between the sheath tube indexing and transposition locking assembly and the Eustachian tube endoscope. The sealing joint assembly of the balloon assembly is installed in the sheath tube indexing transposition locking assembly, the assembly is located outside the human body in the treatment process, the size of the sealing joint assembly can be properly enlarged according to the technological conditions, and the manufacturing difficulty of the balloon assembly is reduced; by changing the length of the sealing joint, the combination of the balloons with different lengths and the same endoscope is realized, and the endoscope is used for treating different patients; according to different relative positions of the treatment ear and the doctor caused by the lying position of the patient, the angle of the sheathing canal and the endoscope is adjusted; the balloon hollow tube is located in the sheath tube and forms a suction channel with the sheath tube, the end of the sheath tube is a suction inlet, and a suction tube externally connected with a negative pressure suction device is arranged on a sealing connector assembly in the balloon assembly, so that the nasal cavity aspirator has the suction function of cleaning hydrops in the nasal cavity.

The invention provides a wafer carrying robot and a wafer storage device, and relates to the technical field of semiconductors. According to the wafer carrying robot, the moving mechanism of the wafer and the moving mechanism of the wafer box are creatively integrated in one mechanical arm, the robot capable of carrying the wafer and the wafer box is formed, and in other words, the wafer carrying robot can complete carrying of the wafer and carrying of the wafer box. Therefore, wafer carrying equipment and wafer box carrying equipment which are independently arranged can be replaced only by arranging the wafer carrying robot provided by the invention in the wafer preparation system, so that the integration level of the equipment in the wafer preparation system is improved, and the space occupation of the wafer preparation system is reduced. Besides, the wafer moving mechanism and the wafer box moving mechanism face different directions on the robot, and the moving mechanism corresponding to the current operation task can be rotated to the operation direction through the connecting piece, so that mutual interference of different moving mechanisms during operation is avoided, and the working stability is ensured.

The invention relates to a soybean milk machine and belongs to the field of soybean milk machine devices. A soybean milk machine comprises a shell assembly, a soybean milk machine body and a soybean milk machine body, the air duct assembly is arranged on the shell assembly and located in the mounting cavity; the heating pot assembly is arranged on the shell assembly and / or the air duct assembly, and the heating pot assembly is provided with a containing cavity; the motor assembly is arranged on the air duct assembly, and part of the motor assembly extends into the containing cavity; and the stirring knife assembly is arranged on the motor assembly. Through the design of the shell assembly, the sealing performance of the soybean milk machine is improved, and when a user cleans the soybean milk machine, water is prevented from invading the interior of the mounting cavity from the shell assembly. The air duct assembly, the heating pot assembly, the motor assembly and the stirring knife assembly are in close fit, all the assemblies are integrally assembled and then assembled with the shell assembly, and the production and assembly process is simplified.

The present invention relates to a non-powered crushing device for a thin coal seam coal mining machine and its mounting structure, wherein the crushing device comprises a crushing seat, a crushing pick mounting seat and a crushing pick, wherein the crushing pick is mounted on the crushing pick mounting seat, and the crushing pick mounting seat is directly welded to the crushing seat, wherein the crushing seat adopts a flat plate structure, wherein the crushing pick mounting seat is located on the front of the crushing seat, and a plurality of crushing seat pin holes are arranged on the back of the crushing seat, and a plurality of screw holes are arranged on the edges around the crushing seat, wherein a plurality of crushing pick mounting seats are fixed at intervals on the crushing seat, and these crushing pick mounting seats are arranged in a plurality of rows from top to bottom, and the crushing picks of two adjacent rows are staggered from each other in the left and right directions; wherein the mounting structure comprises a thin coal seam coal mining machine and a non-powered crushing device for the thin coal seam coal mining machine, wherein the crushing seat is mounted on the thin coal seam coal mining machine. The present invention can solve the problem of crushing large pieces of coal or gangue in the thin coal seam working face.

The invention discloses a semiconductor packaging quality visual inspection device which comprises a machine body, a conveying mechanism and an industrial camera, the conveying mechanism and the industrial camera are installed on the machine body, and a rotary plate is rotationally connected with a lampshade; a sliding connection frame and a telescopic rod for controlling the sliding connection frame to move are arranged on the lamp tube, and a transmission part corresponding to the rotating plate is arranged on the outer side of the rotating disc; an electric control part for controlling the side cylinder to rotate is arranged on the frame rod, and a pressing structure for limiting the lampshade from being unfolded relative to the rotating plate is arranged on the side portion of the side cylinder. According to the invention, through the design of the rotary disc and the rotary plate, multi-color LED light sources can be conveniently integrated, switching of the light sources of various colors is realized, the visibility of specific characteristics can be enhanced through the optical filters of different colors, the detection accuracy is improved, and through the cooperative design of the sliding connection frame and the abutting groove, it is ensured that when the lampshade is opened and aligned with the lamp holder of the lamp barrel, the light sources of various colors can be conveniently switched. The device can be accurately fixed outside a light source, avoids light leakage, and ensures that the background of a detected image is clear.

The invention relates to the technical field of engineering machinery, and discloses an extended-range hybrid power control method and system and engineering machinery, the operation state of the engineering machinery comprises getting-off operation and getting-on operation, and the energy supply mode of the engineering machinery comprises a pure electric mode and an extended-range mode. And getting-off operation can be performed in a pure electric mode, getting-on operation can be performed in the pure electric mode, getting-off operation can be performed in a range extending mode, and getting-on operation can be performed in the range extending mode. According to the invention, the get-off operation and the get-on operation of the engineering machinery both have a pure electric mode and a range extending mode, the requirements of long-time get-off driving and get-on operation can be met, the problem of endurance anxiety of a user to the engineering machinery is solved, the environment adaptability is high, and the application range is wide.

The utility model belongs to the technical field of surveying and mapping engineering, and discloses a marker post convenient to fix, which comprises a main body assembly used for surveying and mapping marking and further comprises a storage assembly installed at the bottom end of the main body assembly and used for storage, hiding and protection, and an anchoring assembly used for being telescopically inserted into the ground to be fixed is installed in the storage assembly. The storage assembly comprises a storage pipe, a first internal thread is arranged at the top end of the storage pipe, a second internal thread is arranged at the bottom end of the storage pipe, and a protective cover is installed at the bottom end of the storage pipe; the anchoring assembly comprises an anchor rod, a second threaded head is arranged at the top end of the anchor rod, and a guide cone head is arranged at the bottom end of the anchor rod. According to the marker post convenient to fix, due to the arrangement of storage and hiding, the occupied space is reduced, and the carrying convenience is improved; through the arrangement of thread meshing and fixing, the fixing stability and the operation convenience are improved; and through the arrangement of end closed protection, the safety of moving and using is improved.

The invention discloses an intelligent air circulation fan, and relates to the technical field of circulation fans, the intelligent air circulation fan comprises an outer cylinder mechanism, the outer cylinder mechanism comprises an outer cylinder, one port of the outer cylinder is expanded outwards, the lower side of the outer cylinder is provided with a support assembly, the other port of the outer cylinder is in butt joint with a main cylinder mechanism, the main cylinder mechanism comprises a main cylinder, and the main cylinder is fixedly connected with the outer cylinder through a flange; an impeller assembly is arranged in the main cylinder mechanism, a framework assembly is arranged in an externally-expanded port of the outer cylinder and comprises a hollow water bin, bin columns used for supporting are evenly and fixedly connected between the outer side of one end of the water bin and the outer cylinder at equal intervals, and the outer side of the other end of the water bin is fixedly sleeved with a cover cylinder; the two sides of the lower inner wall of the cover cylinder are fixedly connected with bottom tables correspondingly, motors fixedly connected with the bottom tables are embedded and inserted into the cover cylinder, the impeller assembly comprises a shaft cylinder mechanism and a fan mechanism, and according to the intelligent air circulation fan, the atomization effect is improved, and the air wetting effect is remarkably improved.

The invention discloses a snapshot and recovery method, device and equipment for computer hard disk data, and relates to the technical field of computers. For the data snapshot request, when the snapshot file does not exist, the hole file is adopted to establish the logic hard disk corresponding to the computer hard disk and the vacant write operation record, the snapshot file of the snapshot time point is formed, otherwise, the latest snapshot file is used as the snapshot file of the current time point, and when the write operation request is received, the write operation record of the logic hard disk corresponding to the computer hard disk is obtained. Only the write operation is recorded through the snapshot file at the time point of the write operation request without recording additional content, and when the read operation request is received, the storage position of the data content can be determined and read according to the write operation record of the latest snapshot file, and when the data recovery request for the target time point is received, the data recovery efficiency is improved. And updating the snapshot file at the time corresponding to the data recovery request to the snapshot file at the target time point. When the data are backed up or recovered, reading and writing of the operating system do not need to be stopped, and the applicability is improved.

The invention relates to the technical field of dolls, and provides a head bionic motion structure of a bionic animal doll, the head bionic motion structure comprises a head shell, ear components, a mouth component and eye components, the head shell is provided with windows for displaying the ear components, the mouth component and the eye components, and the head bionic motion structure is arranged in the head shell. The head bionic motion structure comprises a shell, a first plane and a second plane are symmetrically arranged on the outer surface of the shell, a driving assembly is arranged in the shell, and a first transmission assembly and a second transmission assembly are arranged on at least one face of the first plane and / or the second plane; the first transmission component is flattened and is used for driving the ear component and the mouth component to move, and the second transmission component is used for driving the eye component to move; and the driving assembly is used for driving the first transmission assembly and / or the second transmission assembly to move. According to the bionic structure, the integration and miniaturization of the bionic structure are improved, and the space occupation volume is greatly saved.

The invention discloses a rapidly-spliced foldable display screen and a display screen all-in-one machine, and belongs to the technical field of LED display screens. The number of the display screen units is two, the display screen units are arranged in the vertical direction, and the two display screen units are arranged in a hinged mode through a hinge folding mechanism; the bolt assembly is arranged between the two display screen units and is used for reinforcing and connecting the two display screen units when the two display screen units are unfolded to be in a plane state; according to the rapidly-spliced foldable display screen and the display screen all-in-one machine, the stability, strength, precision and flatness of the whole display screen before and after folding are guaranteed through the cross beams, the stand columns, the cross rods, the positioning aluminum blocks and the plug pins, and meanwhile the multiple adjacent display screens can be connected through the deflection locks and the positioning aluminum blocks; the display screen all-in-one machine is formed to enlarge the application range of the display screen.

The reciprocating motion mechanism of the fascia gun is equivalent to a machine core and is arranged in a shell of the fascia gun, one end of a piston is used for being connected with a massage head, the end, away from the massage head, of the piston is connected with a movable sliding block, and the end, away from the piston, of the movable sliding block is rotationally connected with a transmission shaft. The axial line of the transmission shaft coincides with the axial line of the piston, the transmission shaft rotates in the axial line direction so that the movable sliding block can drive the piston to move back and forth in the axial line direction, a linear transmission structure is adopted, a shell of the fascia gun does not need right-angle turning treatment, the shape is more concise and graceful, and occupied space is small. An eccentric wheel and a bearing connecting rod do not need to be additionally arranged for driving, the overall size of the shell is relatively reduced, noise is improved, the use experience of a user is improved, meanwhile, abrasion caused by large rotational inertia of the eccentric wheel is avoided, and the service life of a product is prolonged.

The utility model discloses a dust collection device and a steel rail grinding wagon. The dust collection device comprises a dust removal box, a fan, a spark catcher, an air duct below the wagon, a dust hood and a dust storage hopper. The dust removal box is arranged on a vehicle body of the grinding vehicle, and a filter drum is arranged in the dust removal box. The dust hood is connected between the under-vehicle air duct and the polishing device, the spark catcher is communicated with the dust removal box, and the under-vehicle air duct is communicated to the spark catcher. The dust storage hopper is arranged at the bottom of the dust removal box, the fan is communicated with the dust removal box, and an air outlet of the fan is formed in the top of the vehicle body. The technical problems that an existing dust collecting device is high in labor cost, large in occupied space and high in internal temperature and failure rate can be solved.

A disinfection spraying device for a livestock shed relates to the technical field of livestock shed appliances and comprises a track arranged at the top in the livestock shed, the track extends longitudinally along the livestock shed, a support frame is movably arranged on the track, a water tank is fixed on the support frame, two extension arms are arranged at one end of the support frame in a swinging manner along the horizontal direction, and water supply pipes are fixed on the extension arms. Sprayers are arranged on the lower surface of the water supply pipe in parallel. The utility model solves the problems that an operator pushes a spraying machine or carries the spraying machine on the back to disinfect the existing animal husbandry, so that time and labor are wasted, a large amount of ground space is occupied, and the use of ground equipment is influenced; and when the distance between the water supply tank and the spray gun is relatively far, the hose is used for supplying water remotely, so that when the spray gun is not used, the relatively long hose is easy to be disordered and occupies a large space, and the environmental cleanliness of the animal husbandry is influenced.