34results about How to "Accurate and convenient installation" patented technology

The invention relates to a multifunctional physical simulation test system for coal engineering. The system comprises a test chamber, a model forming subsystem, a hydraulic loading control subsystem, a test subsystem and a gas pumping and injecting subsystem, wherein the test chamber comprises a loading frame and a counterforce cover detachably connected to one end of the loading frame; the loading frame and the counterforce cover are coaxially mounted on a base; a guide rail is arranged on the base in an axial direction of the loading frame; and support seats capable of sliding along the guide rail are mounted on the guide rail and are mounted at bottoms of the loading frame and the counterforce cover respectively; a track conveying subsystem for conveying models is detachably connected between the model forming subsystem and the test chamber. The invention further provides a coal model test method. According to the multifunctional physical simulation test system for coal engineering and the coal model test method, operation such as drilling, joint forming, fracturing, coal and gas outburst, excavation and support of underground construction and the like under actions of crustal stress, gas pressure and comprehensive multiple factors can be simulated, and an experimental verification means is provided for coal and gas outburst related occurrence mechanism, prediction and control.

A surveillance camera including a housing, a monitoring lens and at least a light beam sight is provided. The monitoring lens is fixed in the housing and faces a monitoring direction. The light beam sight is fixed to the housing and disposed nearby the monitoring lens. The light beam sight is adapted to emit a light beam along the monitoring direction. The light beam is adapted to provide an image fixing position for monitoring lens to fix on an image.

The invention discloses a swivel ball joint and a mounting method thereof. The swivel ball joint comprises a lower ball joint and an upper ball joint arranged above the lower ball joint, wherein a positioning pin hole is formed in the central position of the upper ball joint; a pin shaft is fixedly arranged on the lower ball joint and rotationally connected into the positioning pin hole; both theupper ball joint and the lower ball joint are arranged in the shape of a circle; the top surface of the lower ball joint is a concave sphere; the bottom surface of the upper ball joint is set to a convex sphere which fits the top surface of the lower ball joint; a plurality of upper anchor bolts are uniformly arranged on a support of the upper ball joint; a plurality of lower anchor bolts are uniformly arranged on a support of the lower ball joint; and the upper anchor bolts and the lower anchor bolts are symmetrically arranged. By the adoption of the swivel ball joint disclosed by the invention, the defect that a conventional ball joint is complex to mount and difficult to position can be overcome; the high-efficiency, high-precision and high-quality mounting of the swivel ball joint canbe achieved; and the smooth swiveling can be ensured.

The invention discloses an elevator mounting device assembly capable of being used for a shaft-free building and an elevator mounting method. The elevator mounting method comprises the following steps that 1), bottom steel plates are laid; 2) a first set of supports and a degree-of-parallelism guiding rule are mounted; 3), a second set of supports and a degree-of-parallelism guiding rule are further mounted; 4), a third set of supports and a degree-of-parallelism guiding rule are further mounted; 5), fixed mounting of later support sets and top supports is further completed; 6), the top supports and the top floor are fixedly connected; 7), elevator guide rails are mounted on box iron; 8), mounting of an elevator car and a counterweight device is completed; 9), support fixing pull rods are mounted; and 10), a traction machine platform is mounted, and system debug is conducted. By means of the elevator mounting device assembly and the elevator mounting method, the elevator transformation mounting of the shaft-free building in an old type community can be completed, and the elevator mounting device assembly and the elevator mounting method have the beneficial effects that on the premise of guaranteeing the operating stability and safety of an elevator, the structure is simple and practical, the occupied space is small, and mounting is convenient and accurate, and the safety factor in the mounting process is higher.

The invention relates to the field of electric telescopic tools, and discloses an electric push rod. The rod comprises an outer tube, an inner tube, a screw, nuts and a driving piece, wherein the twoends of the outer tube are correspondingly provided with a base and an end cover, the screw is arranged in the outer tube, the two ends of the screw are rotationally connected with the base and the nuts correspondingly, the inner tube is coaxial with the screw, one end of the inner tube penetrates into the outer tube from the end cover and is arranged outside the screw in a sleeve mode, the nuts are arranged on the inner tube, the inner tube and the outer tube are in clamped connection in the rotating direction, the driving piece is used for driving the screw to rotate, the nuts comprise a main nut and an auxiliary nut, the auxiliary nut is provided with an inserting hole, the end part, facing the auxiliary nut, of the main nut is inserted into the inserting hole, a gap is reserved betweenthe end surface and the bottom surface of the inserting hole to form an oil storage cavity, the end surface, away from the main nut, of the auxiliary nut is provided with a communicating hole, the inner wall of the communicating hole is provided with an inner thread, the screw is inserted into the communicating hole and is in threaded connection with the main nut, and the screw is in threaded connection and is tightly matched with the internal thread. The rod has the advantages of good lubrication cooling effect and long service life.

The invention relates to a bird dispelling machine mounting tool. The bird dispelling machine mounting tool comprises a car body, a fixed bracket and a vertical arm device; the vertical arm device includes a base, a connecting frame, a pitching oil cylinder, a telescopic oil cylinder, a translation device and a power device; and the translation device includes a fixing device and a sliding device. The bird dispelling machine mounting tool realizes automatic installation of a bird dispelling machine, is convenient and fast, prevents manual high running operation, and is safe, reliable, compact in structure, reasonable in design, safe and reliable.

The invention relates to a transmission device and a door and window structure. The transmission device comprises a housing which is provided with a stripy hole, a transmission part, a driving assembly and an adjusting assembly, wherein the driving assembly comprises a driving part which is rotatably penetrates the stripy hole and can slide in the extending direction of the stripy hole; the adjusting assembly comprises a moving part, and an adjusting part which is connected to the moving part; the moving part is stored in the housing, and the adjusting part passes through the housing and can move in the first direction which is vertical to the extending direction of the stripy hole; one of the moving part and the driving assembly is provided with a connecting part, and another one is provided with a stripy groove which is obliquely arranged relative to the extending direction of the stripy hole; the connecting part passes through the stripy groove and can slide along the stripy groove;the moving part can be driven by the adjusting part to move in the first direction, so that the driving part can be driven by the moving part to slide along the stripy hole. With the adoption of thetransmission device, the location of the driving part can be conveniently adjusted to fit a plurality of sections with different size.

The invention belongs to the field of printing equipment, and relates to a printing printer with a table board capable of being replaced and the convenient-to-replace table board. The convenient-to-replace table board comprises a bearing top plate, a middle supporting plate, the elastic clamping assembly which is clamped between the bearing top plate and the middle supporting plate, a positioningbottom plate, a bottom supporting plate and the like. According to the printing printer capable of replacing table board and the convenient-to-replace table board, the ingenious structural design is adopted, so that the traditional structure of integration and not-easy-to-replaced feature of the table board and a machine is subversive changed, so that the table board is easy to replace and accurate and convenient to install; through the table board, clamping operation of clothing waited printing materials can be completed on a workbench other of the machine in advance; and after printing of the printer is completed, the table board is replaced, then next printing can be directly carried out, so that the non-working state of the printing printer is greatly saved, and the working efficiencyis greatly improved.

The invention discloses a structure of a homonymous parallel double-screw-rod extrusion machine. The structure comprises a base. A cylinder assembly is installed above the base and comprises an opening cylinder, a closing cylinder, a side feeding cylinder and an extruding cylinder. The cylinders are located through locating pins and connected through connecting bolts. The cylinder assembly is connected with a gear speed reduction box through a cylinder connecting body. The gear speed reduction box is installed above the base. An input shaft of the gear speed reduction box is connected with anoutput shaft of a motor through a coupling joint. Two screw rod assemblies are installed in the cylinder assembly. Replaceable thread sleeves and engagement blocks are installed on screw rod core shafts of the screw rod assemblies. The rear ends of the screw rod core shafts are connected with two output shafts of the gear speed reduction box through a spline sleeve assembly. The structure is convenient to assemble and disassemble, main parts of the cylinder assembly and the screw rod assemblies are good in interchangeability, combining and installing positions of the main parts can be changedaccording to the requirement of the technology process of modification, aggregation, reaction and extrusion of a high-molecular polymer material, and the purpose of improving the task performance andenterprise production benefits is achieved.

The invention relates to a stiff structure beam-column joint area endless steel plate type stirrup and a construction method thereof. The stiff structure beam-column joint area endless steel plate type stirrup comprises a vertically-arranged section steel column and cross beams horizontally arranged on the four side faces of the section steel column, a threaded column is horizontally arranged on a web of each cross beam, a stirrup structure is arranged between the threaded columns on every two adjacent cross beams, the stirrup structure comprises an L-shaped connecting rib plate, threaded ends arranged at the two ends of the connecting rib plate and threaded sleeves connected to the threaded ends in a threaded mode, and the two threaded sleeves are connected to the threaded columns of the two cross beams in a threaded mode at the same time. Steel bar welding is replaced by threaded sleeve connection, so that the welding process is easier, the construction convenience is improved, the threaded sleeve structure is more stable and firm, and the construction quality is improved.

The invention provides an MEMS piezoelectric sensor for measuring the curvature of a micro-scale charging detonation wave front. The MEMS piezoelectric sensor comprises a substrate, a lower output electrode and a lower bonding pad are sputtered on the substrate, and the lower output electrode and the lower bonding pad are connected through a lower wire to form a lower output layer; the lower output layer is spin-coated and cured to form a PVDF-TrFE thin film layer, silicone oil bath polarization is performed on the PVDF-TrFE thin film layer, a PVDF-TrFE sensitive element is obtained through ion etching, and a PVDF-TrFE piezoelectric layer is formed; an upper-layer output electrode and an upper-layer bonding pad are sputtered on the PVDF-TrFE piezoelectric layer, and the upper-layer outputelectrode and the upper-layer bonding pad are connected through an upper-layer wire to form an upper-layer output layer; the lower-layer output electrode and the upper-layer output electrode are arranged in an up-down axial alignment manner; the lower-layer bonding pad and the upper-layer bonding pad are connected through a lower-layer wire and an upper-layer wire and are vertically arranged; theupper output layer is coated with a protective layer; the sensor has the characteristics of small sensitive element size, high precision, multi-point acquisition and the like, and is suitable for measuring the curvature of the micro-scale charging detonation wave front under various test conditions.

A mounting bracket for a stepless variable speed engine of a light motorcycle includes a frame, a shock absorber, an engine holder, a power connection plate and a hanger. The engine holder includes a beam and two engine fixing rods, and one of the engine fixing rods is fixed to an end of the beam by a bolt, and the other engine fixing rod is integrally coupled to the other end of the beam. The engine fixing rod has plural installation nodes coupled with the engine, and both ends of the shock absorber are hinged with the frame and the middle of the beam. The power connection plate is coupled to the engine fixing rod and has a shaft hole corresponsive with a shaft of the engine. The bolt is provided for fixing and adjusting the structural form of the engine fixing rod to facilitate adjusting the interval of the engine holder to provide a convenient and accurate installation. The bolt is provided for fixing and adjusting the structural form of the engine fixing rod to facilitate adjusting the interval of the holder to provide a convenient and accurate installation.

The invention relates to the field of electric telescopic tools, and discloses an electric push rod, which includes an outer tube, an inner tube, a screw, a nut and a driving part. The two ends of the outer tube are respectively provided with bases and end covers, and the screw rod is arranged in the outer tube. The ends are respectively connected to the base and the nut in rotation, the inner tube is coaxial with the screw, one end of the inner tube penetrates into the outer tube from the end cover and is sleeved outside the screw, the nut is set on the inner tube, and the inner tube and the outer tube are in the direction of rotation Clamping, the driving part is used to drive the screw to rotate, the nut includes a main nut and an auxiliary nut, the auxiliary nut is provided with a socket, the end of the main nut facing the auxiliary nut is inserted into the socket, and there is a gap between the end surface and the bottom surface of the socket, An oil storage chamber is formed, and the end surface of the secondary nut facing away from the main nut is provided with a communication hole, the inner wall of the communication hole is provided with internal teeth, the screw rod is inserted into the communication hole and threaded with the main nut, and the screw rod and the internal tooth thread are connected and closely matched. The invention has the advantages of good lubricating and cooling effect and long service life.

The invention relates to a transmission device and a door and window structure. The transmission device comprises a housing which is provided with a stripy hole, a transmission part, a driving assembly and an adjusting assembly, wherein the driving assembly comprises a driving part which is rotatably penetrates the stripy hole and can slide in the extending direction of the stripy hole; the adjusting assembly comprises a moving part, and an adjusting part which is connected to the moving part; the moving part is stored in the housing, and the adjusting part passes through the housing and can move in the first direction which is vertical to the extending direction of the stripy hole; one of the moving part and the driving assembly is provided with a connecting part, and another one is provided with a stripy groove which is obliquely arranged relative to the extending direction of the stripy hole; the connecting part passes through the stripy groove and can slide along the stripy groove;the moving part can be driven by the adjusting part to move in the first direction, so that the driving part can be driven by the moving part to slide along the stripy hole. With the adoption of thetransmission device, the location of the driving part can be conveniently adjusted to fit a plurality of sections with different size.

The invention discloses a crankshaft rotor assembly, a compressor and an air conditioner. The air conditioner comprises the compressor, the compressor comprises the crankshaft rotor assembly, the crankshaft rotor assembly comprises a crankshaft, a rotor and a lining, the crankshaft comprises a long shaft section, the upper portion of the long shaft section is a circular truncated cone body, the interior of the lining is in a circular truncated cone shape matched with the circular truncated cone body of the crankshaft, the rotor is provided with a mounting hole, and the lining is arranged outside the crankshaft in a sleeving mode and is in interference fit with the mounting hole of the rotor. The lining is additionally arranged between the crankshaft and the rotor, extrusion of the lining and the circular truncated cone face of the crankshaft is facilitated, the lining is expanded, and therefore tight combination among the crankshaft, the bush and the rotor is achieved. The method can reduce the precision requirements on the outer diameter of the crankshaft and the inner diameter of the mounting hole of the rotor, is easier to process, and has the advantages of high efficiency and low cost.

The invention discloses a polishing device with double polishing wheels capable of being easily disassembled and assembled. The polishing device comprises a two-axis motor, a supporting plate is welded to the lower portion of the two-axis motor, a base is arranged below the supporting plate, and the base is connected with the supporting plate through vertical rods. A paddle shifter used for controlling the two-axis motor is embedded into the front surface of the base, and output shafts are arranged in the centers of the two ends of the two-axis motor. Clamping covers are welded to the outer walls at the two ends of the two-axis motor, one side of each clamping cover is connected with an installation plate through reset springs, bearing discs are embedded into the centers of the installation plates, polishing rotation shafts are sleeved with the bearing discs, one ends of the polishing rotation shafts are fixedly provided with the polishing wheels through positioning plates respectively, and the other ends of the polishing rotation shafts are sleeved with the output shafts. The polishing device is suitable for device polishing, the polishing wheels are easy to assemble, disassembleand replace, and the safety performance is high.

A MEMS piezoelectric sensor for measuring the curvature of the detonation wave front of a micro-scale charge, including a base, on which a lower output electrode and a lower pad are sputtered, and the lower output electrode and the lower pad are connected by a lower wire to form a lower layer Output layer; the lower output layer is spin-coated and cured to form a PVDF-TrFE film layer, and the PVDF-TrFE film layer is polarized in a silicon oil bath, and the PVDF-TrFE sensitive element is obtained by ion etching to form a PVDF-TrFE piezoelectric layer; PVDF ‑TrFE piezoelectric layer is sputtered with an upper output electrode and an upper pad, and the upper output electrode and the upper pad are connected by an upper wire to form an upper output layer; the lower and upper output electrodes are arranged in an axially aligned manner; the lower, The upper layer pad adopts the vertical layout method connected by the lower layer wire and the upper layer wire; the upper layer output layer is coated with a protective layer; the sensor has the characteristics of small size of sensitive element, high precision, multi-point acquisition, etc., and is suitable for various test conditions Measurement of curvature of detonation wave fronts under microscale charges.

The invention discloses an L-shaped settlement marker. The L-shaped settlement marker is mainly composed of a marker rod of a settlement observation marker and a circular observation head arranged on the top of the marker rod, wherein the top of the circular observation head is provided with an observation point; the marker rod is connected with a main rod through a 90-DEG bend; the tail part of the main rod is provided with retaining knurled threads; and the end part of the main rod is a flattened positioning head. The L-shaped settlement marker is applicable to settlement observation of a variety of buildings, bridges, roads, subways and the like.

A processing device for ultrasonically grinding sapphire lenses, including a support (18) and an ultrasonic vibration loading system, the support (18) is provided with a workbench (17) and a machine bed (2), and the machine bed (2) is There is a grinding head drive system and a grinding liquid supply system located above the workbench (17). The workbench (17) is equipped with a lens fixing system. The support (18) is provided with a Auxiliary motion system for horizontal movement in the direction and Y direction and lifting movement in the Z direction. The invention has the advantages of advanced technology, relatively low processing cost, high production efficiency and good processing quality, fully utilizes the advantages of existing machine tools and vacuum suction cups in the research institution, and can efficiently and high-quality sapphire lenses that are getting hotter and hotter. Grinding to meet the needs of future enterprises.

The invention relates to a method for installing a rapid sample piece on an automobile clay model, and relates to the technical field of automobile manufacturing. The method comprises the following steps that a plurality of magnet groups to be selected are provided; according to the weight of a rapid sample piece, a suction value needed by the rapid sample piece is determined; according to the suction value and the horizontal tension value of each magnet group to be selected, the size and number of target magnet groups required by the rapid sample piece are determined, and magnet group pairs of the corresponding size and number are selected from the magnet groups to be selected as the target magnet groups; one magnet in each target magnet group is fixed to the rapid sample piece, and the corresponding position of the magnet on the clay model is determined; the other magnet in the target magnet group is attracted onto the magnet; and the rapid sample piece is assembled on the clay model, and the magnets far away from the rapid sample piece are fixed to the corresponding positions of the clay model. The problems that a quick mounting part is inconvenient to disassemble, not timely and inaccurate in positioning are solved; and the problems that labor and time are wasted, the working procedures are numerous, and installation can be completed through cooperation of multiple persons are solved.

The invention discloses a photovoltaic power station installation scheme determination method and device, and the method comprises the steps: obtaining a to-be-recognized image of a roof of a to-be-installed photovoltaic power station, and enabling the roof to have at least one obstacle; roof contour information and obstacle information are determined according to the to-be-recognized image; determining a to-be-installed area according to the roof contour information and the obstacle information, wherein the to-be-installed area comprises an installable area and / or a non-installable area; the installation scheme of the photovoltaic power station on the roof is determined according to the to-be-installed area, and the problems that a large number of available areas are wasted, time and labor are wasted, and certain danger exists due to the fact that the installation scheme of the roof photovoltaic power station is designed through manual roof surveying are solved. Compared with a manual surveying scheme, the beneficial effects that the installation scheme is accurately and conveniently determined by fully utilizing the space of the roof, manpower is saved, the working efficiency of installing the photovoltaic power station on the roof is improved, and the danger of early-stage surveying is reduced are achieved.

The invention discloses a hub unit for a saloon car. The hub unit comprises a support frame, wherein the support frame is arranged on the inner side of an outer ring; lightening holes are formed in the support frame; antiskid stripes are arranged on the surfaces of the left side and the right side of the support frame; a magnetic installation plate is arranged on one end of the support frame; fixing holes are formed in the magnetic installation plate; a connecting hole is formed in the middle of the magnetic installation plate; a sleeve ring is arranged on the outer side of the connecting hole. The hub unit for the saloon car provided by the invention is scientific and reasonable in structure, and safe and convenient to use; the lightening holes are formed, so that the weight of the hub can be reduced to a certain degree, a power load can be reduced due to the mass reduction during a driving process of the saloon car, and the power efficiency is higher; the magnetic installation plate is arranged, so that the hub unit can be installed more accurately and conveniently due to the magnetic attraction; the antiskid stripes are arranged on the support frame, so that the hub unit can be conveniently moved and taken during an installation and movement process.

The invention discloses an LED downlight capable of being rotationally connected with a surface cover in a clamping manner. The LED downlight comprises a heat radiator, two supporting frames, an LED optical engine module, a reflection cup and the surface cover, wherein the two supporting frames are connected with the heat radiator; and the LED optical engine module, the reflection cup and the surface cover are arranged on the heat radiator. The LED downlight is characterized by further comprising a ring-shaped sleeve frame, wherein the ring-shaped sleeve frame is fixed at the tops of the two supporting frames; at least two clamping columns are arranged on the inner side of the ring-shaped sleeve frame; at least two clamping ports are arranged on the edge of the surface cover; and the clamping columns are clamped in the clamping ports. The LED downlight disclosed by the invention has the advantage of being convenient to assemble.

The invention provides a motor installation assembly and method. The installation assembly comprises a supporting block and a tensioning part. A motor is installed on an engine in a lifted mode through the installation assembly. The supporting end of the motor is connected with the lower end of the engine through the supporting block. The adjusting end of the motor is connected with the upper end of the engine through the tensioning part. According to the installation method, the motor is rapidly and accurately installed to the engine through the installation assembly. Compared with the prior art, the motor installation assembly and method have the advantages that an electric generator output wire and control wire of the motor are located on the upper portion, installation, detection and overhaul of a cable on the motor are facilitated, the tensioning degree of a bet can be adjusted more conveniently and accurately, the process that the motor is installed on the engine is simplified through the installation method, the motor is accurately and conveniently installed, installation efficiency and reliability are improved, meanwhile, convenience is brought to motor maintenance and disassembly, and the installation and overhaul time cost is saved.

The invention relates to a base convenient for mounting and dismounting a closestool. The base comprises a closestool positioning pin, a closestool base external decoration ring, a deodorant flange clamping seat, deodorant flange clamping seat positioning connecting plates and a powder box. The inner side of the closestool base external decoration ring is connected with the deodorant flange clamping seat through more than two deodorant flange clamping seat positioning connecting plates; and during installation, the deodorant flange clamping seat sleeves a blow-off pipe to position the whole base, the direction of the base is adjusted as required, a closestool can be installed in place only by aligning the external decorative ring of the closestool base during installation, and a blow-off port below the closestool can be accurately butted with the blow-off pipe sleeved by the deodorant flange clamping seat. The closestool positioning pin is arranged on the surface of the upper portion of the decoration ring outside the closestool base and can further position the closestool so that the closestool can be installed on the base more stably and accurately, the closestool can be installed in place more conveniently, and the problem that sealant becomes yellow and mildewed after the closestool is used for a long time can be effectively eradicated.