84results about How to "Flexible structure" patented technology

A communication engineering cable tray includes a cable tray, a hanging rod, a cable tray plate, a fastening plate, a locking rod, a lever, and a cover. The cable tray has connecting plates at both ends, and a screw passes through the connecting plates. The two ends of the screw are threadedly connected to fixing nuts. The upper part of the cable tray has a hanging tube, which is threadedly connected to the hanging rod. The upper end of the hanging rod has a mounting plate. The cable tray has an internal slide rail that adapts to the cable tray plate. The cable tray plate connects to the slide rail and slides within the slide rail. The cable tray is externally connected to a fastening plate, which has fastening rods on both sides. The cable tray has multiple external through holes on both sides, and the cable tray plate has internal through holes on both sides. The internal and external through holes adapt to the fastening rods, and the fastening rods pass through the external and internal through holes sequentially. The fastening rods are threadedly connected to fastening nuts.

The utility model discloses a glue nozzle temperature on-line detection device, and relates to the technical field of adhesive sticker production, the glue nozzle temperature on-line detection device comprises a support frame member and a second closed structure member, the bottom of the support frame member is connected with a first joint member, and the second closed structure member is connected to one end of the support frame member far away from the first joint member. According to the glue nozzle temperature on-line detection device, the first joint component and the second joint component are arranged at the two ends of the supporting frame component respectively, a first electric joint and a second electric joint are each of a frameless torque motor structure, and by means of the arrangement of the structures, the whole device structure has the double-section structure movable adjustability; and meanwhile, a damping sleeve is used between the second closing component and the detection component, so that the detection component can realize axial rotation adjustment along the surface of the connecting pile, the structural flexibility is improved, and the device is convenient to use.

This invention discloses a sample introduction and reaction device for detecting pesticide residues in organic solvent extracts using a liquid-phase enzyme inhibition method. The device includes a reaction tube and a cap, which are detachably assembled. The cap seals the reaction tube and contains a hollow column. A sample introduction card is sealed inside the hollow column, and the reaction tube contains enzyme reagents. This invention can be used for the liquid-phase enzyme inhibition method to detect pesticide residues extracted from organic solvents, eliminating interference from organic solvents in the enzyme inhibition detection. The device integrates the sample introduction card and enzyme reagents beforehand, sealing the sample introduction card within the hollow column for easy portability. The hollow column also serves as a support for solvent evaporation from the sample introduction card, facilitating rapid solvent evaporation. The cap and tube serve a dual purpose. This invention features a simple structure, ease of use, simple operation, short detection time, and low cost. It is suitable for on-site testing of large quantities of samples during food distribution and is easy to promote and use.

This invention discloses a vibration damper for an afterburner with an insertion tube, belonging to the design field of afterburners. It includes a vibration damper, a flame stabilizer, and a central cone. The vibration damper is located at the downstream end of the outer bypass channel, closely attached to the inner wall of the afterburner shell, forming a double-wall structure. Cold air from the outer bypass flows through it, cooling the wall surface and absorbing oscillation energy, thus suppressing high-frequency vibrations in the combustion chamber. The flame stabilizer is located in the inner bypass channel, its inner end connected to the central cone. The inner bypass and part of the outer bypass airflow meet here, forming a low-speed recirculation zone, achieving fuel-air mixing and stable ignition. The vibration damper has openings, employing a deep-hole structure with an insertion tube. The insertion tube is placed within a hole in the vibration damper's base, significantly increasing the equivalent neck length of the vibration damper while maintaining the same main plate thickness. This shifts the peak sound absorption frequency towards lower frequencies, improving the vibration damper's absorption capacity for low-frequency oscillation modes in the afterburner.

This invention discloses an integrated refrigeration and air compression compressor unit and a refrigeration system. The integrated refrigeration and air compression compressor unit includes a refrigeration compressor, an air compressor, a motor, and a clutch. The motor has an output shaft; one end of the output shaft is connected to the refrigeration compressor or the air compressor, and the other end is connected to the air compressor or the refrigeration compressor via the clutch. In the refrigeration system, a cooling branch is provided to cool the intake air of the air compressor, reducing the exhaust temperature after compression, thereby significantly reducing the operating temperature of the air compressor, improving its reliability, and extending its lifespan. This invention has a simple structure and lower cost.

The utility model discloses a phosphor bronze capillary tube bore mirror surface imaging equipment, it includes the bearing shell, the side swing joint of bearing shell has the soft shell, be equipped with a plurality of swing holes on bearing shell, the corresponding through swing joint of swing hole has the down pressure rod, the swing joint of through of bearing shell has the camera device, the swing joint of through of bearing shell has a plurality of illumination light, the side fixed connection of bearing shell has the positioning ring, the side fixed connection of soft shell has a plurality of fixed rings, the position graduation is equipped on first support rod, second support rod, the swing joint of corresponding swing hole has the reset spring. Through above -mentioned structure, can steady swing joint in capillary tube, and illumination light provides sufficient illumination, and camera device can clearly capture bore details, effectively promote imaging definition and detection accuracy, can be adapted to different specifications capillary tube, and facilitate accurate positioning.

The utility model provides an anti-static device for coal mine electrical equipment, and belongs to the technical field of static prevention and control. Comprising a main arm, clamping plates are arranged at the two ends of the main arm, an adjusting assembly for adjusting the distance between the clamping plates is arranged on the main arm, the clamping plates are distributed towards the side of the main arm, a conductive plate is fixed to the face, facing the clamping plates, of the main arm, a conductive piece is vertically arranged on the main arm and makes contact with the conductive plate, and the conductive piece is movably assembled on the main arm. The conducting strip is in sliding contact with the conducting plate, and the main arm is provided with a pressing piece for adjusting the height of the conducting strip. According to the utility model, a conductive path is formed between the electrical equipment and the ground or the wall surface, so that static charges on the surface of the electrical equipment can be quickly guided into the ground, static accumulation is avoided, the safety of the equipment and personnel is protected, the flexibility and the adaptability are higher, a clamping assembly mode is adopted, the assembly and disassembly are easy, and the repeated utilization can be realized.

The utility model discloses a portable forging die replacing device, which belongs to the field of lifting appliances and comprises a forging die main frame, a protruding mounting table is arranged at the top of the forging die main frame, a sliding rail is arranged at the bottom of the protruding mounting table, and the sliding rail extends in the direction far away from the forging die main frame. A pulley assembly is supported and slides on the sliding rail, a hanging plate is arranged below the pulley assembly, a hanging hole is formed in the hanging plate, and a connecting hook with hooks at the two ends is hung on the hanging hole; the die changing device further comprises a die changing rod, a magnetic base is hung at the end of the die changing rod, a hanging ring is arranged on the side wall of the upper portion of the die changing rod which is a certain distance away from the magnetic base, and a hook below the connecting hook is matched with the hanging ring. By means of the structure, the position of the forging die can be rapidly adjusted, and then the forging die can be rapidly replaced through cooperation of hoisting equipment.

This invention belongs to the technical field of motor control and discloses a model predictive control method and system for effectively suppressing the second harmonic of a permanent magnet synchronous motor. The method includes the following steps: obtaining the three-phase input current of the permanent magnet synchronous motor at the current moment, converting the three-phase input current into a sum-i current in a coordinate system; extracting the two orthogonal components of the second harmonic at the current moment from the transfer function of the current input to a second-order generalized integrator; calculating the second harmonic component at the next moment using the two orthogonal components of the second harmonic at the current moment; compensating the fundamental current reference command at the next moment using the second harmonic component at the next moment, obtaining the compensated fundamental current reference command at the next moment, thus achieving the suppression of the second harmonic current at the next moment. This invention solves the problem of not suppressing the second harmonic in the control of permanent magnet synchronous motors.

The invention relates to the technical field of mine refrigeration and cooling, in particular to a mine refrigeration and cooling pipeline arrangement system. The water outlet end of a main circulation pipeline is connected with the water inlet end of a cooling device to form a closed circulation loop; the main circulation pipeline is laid in the extending direction of the roadway and serves as a liquid supply mother pipe of each refrigerating unit. The branch pipelines of the refrigerating units are respectively led out from different positions on the main circulation pipeline; the negative pressure water return devices are installed on the main circulation pipeline in series, and each negative pressure water return device is located behind the branch pipeline leading-out point of the refrigerating unit corresponding to the negative pressure water return device and in front of the branch pipeline leading-out point of the next refrigerating unit and used for forming an alternate series-connection arrangement structure. Through alternate series arrangement, the dual functions of liquid supply and water return of the main circulation pipeline are achieved, the pipeline layout is greatly simplified, the roadway space occupation is reduced, the installation cost and the leakage risk are reduced, and the system adapts to complex working conditions of mines.

The utility model provides a kind of split type spliced handlebar and luggage, it is related to the technical field of daily necessities, the split type spliced handlebar includes handlebar assembly and sleeve, the quantity of handlebar assembly is set to two, handlebar assembly is provided with plug-in rod, two plug-in rod are oppositely arranged and end detachably connected to form support rod, the sleeve is sleeved on the support rod;The luggage includes the split type spliced handlebar;Two handlebar assembly and sleeve of the utility model cooperate with each other, not only can carry larger load, the lifting effect is remarkable, and can be selected according to the actual demand of user The sleeve of corresponding appearance is installed, appearance is various and exquisite, simultaneously when handlebar is damaged, the replacement of single component can be realized, structure is flexible, and use cost is low.

The invention relates to a wavelet neural network dynamic construction method, which comprises the following steps of: setting a nonlinear system, and processing an unknown nonlinear function in the nonlinear system by adopting a self-adaptive scaling wavelet network approximation framework; processing the non-linear function, namely determining an initial wavelet space for approaching the non-linear function by utilizing an initial wavelet frequency estimator of the adaptive scaling wavelet network approaching framework; on the basis of a scaling parameter self-adaptive adjustment mechanism, scaling parameters are dynamically updated on line so as to adjust the frequency bandwidth of the wavelet basis function and enable the frequency bandwidth to be matched with the spectrum distribution of the nonlinear function; and based on a wavelet basis function increasing and cutting mechanism of the adaptive scaling wavelet network approximation framework, increasing and cutting a wavelet basis function on the basis of the initial wavelet space so as to further approach the nonlinear function.

This invention discloses a device and method for measuring the magnetization intensity of irregularly shaped permanent magnets in motor applications. The bottom of the measuring device is configured as a workbench, on which an L-shaped placement platform is inclinedly arranged. A lifting component is slidably connected to the inner side of the long side of the L-shaped placement platform. A magnetically conductive clamping iron core is clamped onto the lifting component, and a measuring coil is wound on the magnetically conductive clamping iron core. The magnetically conductive clamping iron core also has a clamping gap for the irregularly shaped permanent magnet, and the clamping gap for the irregularly shaped permanent magnet is arranged opposite to the measuring coil. During measurement, the irregularly shaped permanent magnet can be clamped by the magnetically conductive clamping iron core, and then the lifting component drives the magnetically conductive clamping iron core to slide on the long side of the L-shaped placement platform, thereby achieving rapid positioning and directional cutting of the magnetic circuit, and thus accurately measuring the magnetic flux of the iron core. The magnetization intensity of the permanent magnet can be calculated, and this magnetization intensity can be used for magnetic circuit calculation of permanent magnets in motor applications, thereby achieving accurate measurement of the magnetization intensity of irregularly shaped permanent magnets.

This invention discloses a flushing system and method for low flash point fuel. The system includes a low-carbon fuel supply module connected to a low-carbon fuel tank. The low-carbon fuel supply module and a fuel mixing tank are respectively connected to the two inlet ends of a fuel inlet switching valve. The outlet end of the fuel inlet switching valve is sequentially connected to the inlet of a low-carbon fuel engine via a first fuel supply shut-off valve and a second fuel supply shut-off valve. The outlet end of the first fuel supply shut-off valve is also connected to the low-carbon fuel tank via a vent valve. The outlet of the low-carbon fuel engine is connected to the inlet end of a fuel return switching valve. The two outlet ends of the fuel return switching valve are respectively connected to the low-carbon fuel tank and the fuel mixing tank. The inlet of the low-carbon fuel engine is also connected to a flushing pipeline, which is equipped with a flushing valve. This invention uses diesel, which is also a liquid fuel, and operates on a liquid-to-liquid principle, allowing for a more flexible system layout and avoiding excessive consumption of compressed gas.

The utility model discloses a kind of drying device of DNPH silica gel column auxiliary drying forming, including drying cabinet main body, the drying cabinet main body top surface center position is equipped with speed reducer, drying cabinet main body inside through-hole is equipped with suspension subassembly, drying cabinet main body lower end rectangular recess is equipped with electric heating tube, drying cabinet main body lower end rectangular recess edge is welded with shunt plate, the bottom surface circular through-hole of drying cabinet main body is equipped with fan subassembly, drying cabinet main body one side upper end rectangular through-hole is welded with exhaust frame, the top surface of drying cabinet main body one corner is equipped with control box, the inside edge of drying cabinet main body is movably installed with inner cabinet door by hinge.The drying device of DNPH silica gel column auxiliary drying forming of the utility model is designed by rotating suspension, hot air circulation, accurate control and convenient operation, improves the uniformity, efficiency and quality of DNPH silica gel column drying, and it is convenient to move, and strong applicability.

The utility model belongs to the technical field of gas filtering devices, and particularly relates to a wet-type gas front filter cartridge which comprises a vertical cartridge body, a closed filtering cavity is formed in the cartridge body, a gas inlet channel is formed in the bottom end of the cartridge body, a gas outlet channel is formed in the top end of the cartridge body, and the gas inlet channel and the gas outlet channel are both communicated with the filtering cavity. The lower part of the filter cavity is filled with filtrate, the upper part of the filter cavity is provided with an oil-water filter module connected with the air outlet channel, and the oil-water filter module is not contacted with the filtrate. The wet-type gas front filter cartridge disclosed by the utility model is connected in series with the existing single-cartridge filter structure for use, so that the filter burden can be dispersed, and a part of water-soluble or water-adsorbed particles, oil and other water-soluble substances can be filtered out in advance, thereby improving the overall filter effect, being beneficial to reducing the burden of subsequent filter materials, and reducing the production cost. The service life of a subsequent filter material is prolonged.

The invention relates to the technical field of photovoltaic devices, in particular to a composite electrode, a flexible perovskite photovoltaic device thereof and a packaging method. According to the technical scheme, the composite electrode is of a multi-layer structure and sequentially comprises a stress buffering and interface bonding layer, a conductive grid layer and a self-repairing functional layer from bottom to top. A buffer interface with modulus gradient transition is constructed, a three-dimensional composite conductive network is formed by reducing graphene through a silver nanowire / carbon nanotube / chemical vapor deposition method, a self-repairing functional layer integrating a dynamic disulfide bond and microcapsule dual mechanism is combined with an atomic layer deposition inorganic layer and an organic buffer layer for composite packaging, and the three-dimensional composite conductive network and the self-repairing functional layer are formed. The key problems of mechanical mismatch between an electrode and a substrate in a flexible perovskite photovoltaic device, easy damage of a conductive network under bending and stability reduction caused by water and oxygen invasion are systematically solved, so that high photoelectric efficiency is ensured, and repeated bending resistance, damage self-repairing capability and long-term environmental stability of the device are remarkably improved.

The invention belongs to the technical field of deep ground environment mechanical testing, and discloses a device and method for simulating a deep ground high temperature-three-dimensional ground stress coupling environment through a prestressed steel strand. The device comprises a test piece main body system, a prestress applying system, a positioning reinforcing system and a monitoring feedback system. The core of the method is that based on a thermal stress formula under three-dimensional complete constraint in thermoelastic mechanics, additional thermal stress caused by ground temperature rise is calculated, and the additional thermal stress and target three-dimensional ground stress are superposed; and through a post-tensioning pre-stress technology, the superposed total stress is accurately and stably applied to an internal test piece for a long time by utilizing a retard-bonded pre-stress steel strand system and a high-strength concrete transfer medium, so that a deep high-ground-temperature and high-ground-stress coupled mechanical environment is constructed. The problems that a traditional coupling test device is high in cost, difficult to control and difficult to stabilize for a long time are solved, and accurate simulation of the deep ground high temperature-three-dimensional stress coupling environment is achieved.

The utility model belongs to the technical field of military equipment, particularly relates to a multifunctional explosive ordnance disposal tool set with an arm band, and solves the problems that in the prior art, the function is single, the structure is fixed, operation is tedious, and height adjusting capacity is lacked. The device comprises a tool box, an arm band, a supporting structure, a locking and unlocking mechanism and a lifting adjusting mechanism. The tool box accommodates explosive-handling tools, and the integrated navigation module provides real-time data; angle adjustment of the supporting structure is achieved through multiple connecting rods; a locking and unlocking mechanism ensures reliable sealing of the tool box; and the lifting adjusting mechanism realizes height adjustment. According to the utility model, the efficiency, flexibility and safety of explosive ordnance disposal tasks can be improved, and the requirements of complex task environments are met.

The invention discloses an array device for simultaneous reaction of a large batch of quartz tubes, belongs to the technical field of vacuumizing sealing tube reaction equipment, and solves the problems of limited quartz tube reaction quantity, low efficiency, high energy consumption, poor safety and easiness in damaging a reaction furnace in the prior art. The device comprises a box body made of a high-temperature long-acting use material, a top cover, and a thermal insulation layer and a thermal insulation array layer which are laid in sequence, the corners of the box body are round corners, the top cover sinks and extends to form a closed space with the box body, and the heat preservation array layer is provided with array through holes matched with the quartz tubes, so that the quartz tubes and reactants can be completely coated, and the independent reaction of the large-batch quartz tubes is realized. The device is provided with a vertical structure and a transverse structure, and the transverse device is matched with a buckle structure, so that the array can be prevented from sliding off and fragments can be prevented from splashing. The device can realize synchronous reaction of a large batch of quartz tubes, is high in experiment efficiency, low in energy consumption, stable in heat preservation, good in safety, high in practicability and suitable for various high-temperature closed quartz tube reaction scenes, and each part can be flexibly adjusted as required.

The application discloses a kind of multicolor semiconductor laser modules with shaping beam combining prism pair, comprising: first laser light path, several mutually parallel second laser light paths and main light path, second laser light path and first laser light path are parallel, first laser light path includes first laser diode, first aspherical collimating lens, first telescope and first shaping beam combining prism pair arranged in sequence, first shaping beam combining prism pair includes first shaping prism and second shaping prism, one side of second shaping prism is provided with coating layer, coating layer is used to reflect the light beam of first laser light path and transmit the light beam of second laser light path, the light beam of first laser light path and the light beam of second laser light path are combined to form main light path, first long-focus plano-convex lens and focusing lens are sequentially arranged on main light path, and focusing lens is arranged at the light emitting position on the multicolor semiconductor laser module.The application compared with prior art, can effectively reduce the size of laser module, and increase the stability of optical path.

The utility model belongs to the technical field of automobile cup saucers, and discloses a novel automobile cup saucer which comprises a shell and a cup saucer body, the cup saucer body provided with butt joint threads is adopted to be in threaded connection with the shell, when the cup saucer needs to be maintained or cleaned, the cup saucer can be rapidly taken out only by rotating the cup saucer, and the cup saucer is convenient to use. Therefore, the whole shell structure cannot be affected, the convenience of maintenance and cleaning can be effectively improved, meanwhile, when articles such as a water cup are placed, the magnetic attraction pieces of proper structures can be selected according to the sizes and the structures of the articles, and the magnetic attraction pieces are convenient to use. The structure of the top of the cup stand body can be adjusted through magnetic attraction of the magnetic attraction pieces and the magnetic attraction grooves, then the limiting grooves of the corresponding types can effectively clamp and limit objects of the specified structure, random shaking is avoided, meanwhile, the clamping pieces can clamp the bottoms of the objects, stability is further improved, and the cup stand is convenient to use. The device has the advantages of convenience in maintenance and cleaning, flexible structure and high practicability.

The utility model provides a ton bag cleaning device which comprises a workbench, two movable rods, four supporting rods, four connecting rods, two first telescopic rods, two first sliding connecting blocks, two second sliding connecting blocks, a cleaning assembly, a lifting assembly and a moving assembly. The moving tracks of the two first sliding connecting blocks are located on the two sides of the middle of the workbench and are collinear. The lower section of the movable rod is in sliding connection with the first sliding connection block in the vertical direction; one ends of the two supporting rods are hinged to the two sides of the top end of the movable rod respectively, and the rotating faces of the supporting rods are coplanar and are perpendicular to the sliding direction of the first sliding connecting block. The second sliding connection block is connected with the upper end of the supporting rod in a sliding mode, and one end of the connecting rod is hinged to the second sliding connection block. The bulk material cleaning device solves the problem that bulk materials are attached to the interior of the ton bag, and cleaning efficiency is improved.

This invention discloses a jaw crusher, including a frame assembly, a fixed jaw plate, a movable jaw assembly, a rocker arm assembly, a suspension shaft assembly, and a transmission assembly. The frame assembly includes two side plates arranged opposite each other. This jaw crusher suspends the upper part of the movable jaw assembly to the frame assembly via the suspension shaft assembly, and adjusts the lower part of the movable jaw assembly to a fixed base via the rocker arm assembly. Furthermore, a first connecting assembly and a second connecting assembly on the movable jaw assembly, along with a sliding groove on the fixed base, allow the rocker arm assembly to be adjusted between different connection positions and different adjustment positions. This not only enables fine-tuning of the discharge opening but also allows switching of the discharge opening adjustment range, effectively increasing the adjustment range of the discharge opening and facilitating adjustments according to different material particle sizes and different working conditions.

The application relates to a folding telescopic support platform, which comprises a base provided with a first abutting seat, a support platform provided with a second abutting seat corresponding to the first abutting seat, a driver connected with the base, a lifting assembly comprising a cross rod, an upper supporting rod and a lower supporting rod movably connected with the cross rod, the other end of the lower supporting rod being movably connected with the base, the other end of the upper supporting rod being movably connected with the support platform, the power output end of the driver being connected with the cross rod and driving the cross rod to move along the axial direction, and the cross rod being provided with a supporting plate; wherein during the movement of the cross rod along the axial direction, the supporting plate is abutted between the first abutting seat and the second abutting seat when the supporting plate, the first abutting seat and the second abutting seat are displaced along the same straight line; the driver drives the cross rod to move, so that the upper supporting rod and the lower supporting rod rotate to fold or open around the cross rod, the support platform is driven to ascend or descend, and the supporting plate is used for abutting between the first abutting seat and the second abutting seat, thereby enhancing the stability of the support platform.

The utility model discloses a modularized wall surface storage plate which comprises a pair of vertical arms arranged side by side, the pair of vertical arms are vertically distributed, and a hollowed-out plate, a storage box, a storage rack plate and a storage tray are sequentially assembled between the pair of vertical arms from bottom to top; a plurality of positioning connecting holes are formed in the opposite faces of the vertical arms, and positioning connecting pieces capable of being connected with the positioning connecting holes for positioning are arranged at the two ends of the hollowed-out plate, the two ends of the storage box, the two ends of the storage rack plate and the two ends of the storage tray. According to the utility model, the modular structural design is adopted, the wall space is fully utilized, the space utilization rate is improved, different articles can be stored in a classified manner, and the article storage and wall decoration effects are better.

A metallurgical furnace convertible to an electric arc furnace or converter for carrying out a production process for producing molten metal, in particular steel or cast iron, comprising a vessel which in turn comprises: a lower housing; and an upper housing removably positioned on the lower housing and provided with at least one inlet for feeding the solid or molten charge therethrough, a closing top cover for closing the upper part of the container, wherein a closure cap is removably positioned on the upper housing and provided with a passage opening through the at least one electrode and at least one charge opening for feeding solid charge wherein at least one of the inlet, passage opening, charge opening is closed or can be associated with a removable closure element, and wherein the lower housing has a diameter D, and the total height H of the vessel ranges from 0.70 D to 1.25 D, preferably from 0.70 D to 0.80 D if the furnace is used as an electric arc furnace, and preferably from 0.80 D to 1.25 D if the furnace is used as a converter.