48results about How to "Reduce chance of repair" patented technology

The invention relates to an LED (Light Emitting Diode) illumination intelligent control system which comprises a synchronous rectification unit used for providing direct-current power for at least two intelligent power control units, wherein the output end of each intelligent power control unit is connected with a corresponding LED light group unit via an electric wire; and the synchronous rectification unit is connected with each intelligent power control unit by a high-voltage direct-current bus. In the intelligent control system, stable constant-voltage direct current is provided for an LED illumination system by the synchronous rectification unit, so that the whole illumination system can operate under high power factor with less harmonic wave. the corresponding LED light group units are dynamically and precisely dimmed by the intelligent power control units, and the LED operation situation is detected in real time and communication with an external control center is carried out. The intelligent control system has the characteristic of reasonable structure, and is convenient to control, the working environment temperature of an LED light group can be improved, and the reliability and the service life of an LED illumination light can be improved.

The invention relates to a street lamp electrified by utilizing an ascending air current and a flywheel battery and a using method thereof. The street lamp is characterized in that an upright post of the street lamp is internally provided with a wind driven generator; the upper part of the upright post is provided with an arc-surface wind cap; the upright post is internally provided with the flywheel battery and a control circuit; and the upright post is made of transparent materials and provided with a salt layer. The using method of the street lamp is as follows: an air current flows through the arc-shaped wind cap so that flow speed is accelerated and pressure is lowered, and a high-pressure air current forms the strong ascending air current from bottom to top; the black salt layer inside the upright post absorbs the heat of sunlight, and heated air upwards forms the other strong ascending air current; and the two strong ascending air currents push the wind driven generator inside the upright post to rotate for power generation to supply to the street lamp for illumination. The street lamp disclosed by the invention is lower in maintenance probability because power generation facilities are all arranged in the upright post of the street lamp, has the advantages of low cost and long life by utilizing the salt layer as a solar power generation facility compared with a solar cell panel and prevents the environmental pollution of a chemical battery by substituting the flywheel battery for a chemical storage battery.

The invention discloses an LED (Light Emitting Diode) project lamp intelligent illumination control system, which comprises a synchronous rectification unit which is used for providing a direct current power source for at least two intelligent power source control units, and a light intensity sensor which is used for providing light intensity information for the intelligent power source control units, wherein the light intensity sensor is electrically connected with the intelligent power source control units; the output end of each intelligent power source control unit is connected with a corresponding LED (Light Emitting Diode) lamp bank unit by a wire; the synchronous rectification unit is connected with each intelligent power source control unit by a high-voltage direct current bus. According to the LED project lamp intelligent illumination control system, the work environment temperature of an LED lamp bank is improved, the thermal radiation caused to the LED lamp bank by a power device can be reduced, and since the environment temperature of the LED lamp bank can be greatly reduced, the reliability and the service life of the LED lamp bank can be improved and prolonged. The LED project lamp intelligent illumination control system is mounted in a split mode, the installation is convenient, the maintenance probability is greatly reduced, and the maintenance cost is saved.

The invention relates to a self-generating type streetlamp for generating power by utilizing the pressure difference and a use method thereof. The self-generating type streetlamp and the use method are characterized in that a vertical column of the streetlamp is internally provided with a plurality of wind-driven generators; the upper part of the vertical column is provided with an arc-surface wind cap; the vertical column is internally provided with a storage battery and an electric connection circuit; the vertical column is made of transparent material; and the northward part of the vertical column is provided with a salt layer. The use method comprises the following steps that airflow flows through the arc-shaped wind cap, the flowing speed is accelerated, the pressure is reduced, and the airflow with high pressure flows from bottom to top to form a gust of strong rising airflow; on the other side, the black salt layer in the vertical column absorbs heat of the sunlight, the heated air flows up to form another gust of strong rising airflow; the two gusts of strong rising airflow pushes the wind-driven generators in the vertical column to rotate and generate power for illumination of the streetlamp. The self-generating type streetlamp and the use method have the beneficial effects that since all the power generating facilities are arranged in the vertical column of the streetlamp, the maintenance probability is lower, so that the use cost is lower. The self-generating type streetlamp utilizes the black salt layer as a solar power generating facility, and has the advantages of low cost and long service life compared with a solar battery panel.

The invention discloses a bi-directional rotary grinding head of a retreading machine; the bi-directional rotary grinding head comprises a fixed plate, an outer rotary millstone, an inner rotary millstone and a middle shaft which is connected with a power unit; the inner rotary millstone is arranged on the middle shaft; a transmission device is connected between the middle shaft and the outer rotary millstone; the transmission device is a planetary gear train; the planetary gear train comprises a first sun gear, a first planetary gear and a first inner gear ring; the first sun gear is arranged on the middle shaft; the first planetary gear is arranged on the fixed plate; the first inner gear ring is fixedly connected with the outer rotary millstone; after the structure is improved, the inner rotary millstone is directly arranged on the middle shaft; and the outer rotary millstone acquires power through two stages of transmission, so that the structure is greatly simplified, and the manufacturing cost and the maintenance probability are reduced.

The invention discloses an intelligent LED (Light-Emitting Diode) street lamp power supply system. A high-voltage direct-current power supply module comprises an alternating-current power supply control unit and a direct-current unit for providing high-voltage direct-current power supply and a power line carrier modulation signal for an LED street lamp illuminating module. Through adoption of high-voltage direct-current power supply, a power adapter does not need to be provided for each street lamp, so that the problem that the service life of the adapter is not matched with the service life of an LED light source is solved, and the maintenance probability and maintenance cost of the LED street lamp are lowered greatly. Meanwhile, a very ideal lightning protection effect is achieved. A power supply and control sharing way is adopted on a high-voltage direct-current power supply circuit, and a decoder controls the brightness of the street lamps according to voltage change on a bus, so that the using quantity of cables and the cable power supply cost are reduced greatly. Moreover, a control way is simpler and more convenient.

The invention relates to a portable telescopic endoscopy comprising an operating handle, an image obtaining device, a telescopic pipe, a bending part and a guiding part. The operating handle is connected with one end of the bending part through the telescopic pipe; the other end of the bending part is connected with one end of the guiding part; the image obtaining device is installed inside the guiding part and is used for obtaining image information through a port at the other end of the guiding part; the telescopic pipe, the bending part and the guiding part are all wrapped with a layer of flexible material at the outside. Since the portable telescopic endoscope of the invention uses the wireless transmission technology, it does not need a host computer, and the image information can betransmitted to the accompanying computer or mobile phone through the wireless communication technology. It is not necessary to prepare a dedicated display screen and it is very convenient to carry. Inaddition, the endoscope can not only perform the inspection and treatment of digestive endoscopy in various environments such as villages and fields, but also avoid the inconvenience caused by carrying several different endoscopes at the same time, which greatly increases the ability of on-site diagnosis and treatment of digestive endoscopy.

The invention discloses a two-way rotating grinding head provided with planetary grinding discs and specially used for a retreading machine. The grinding head comprises a fixed disc, an outer rotating disc, an inner rotating disc, and a middle shaft connected with a power device, wherein the inner rotating disc is arranged on the middle shaft; a transmission device is connected between the middle shaft and the outer rotating disc; a plurality of planetary grinding discs are arranged at the bottom of each of the inner rotating disc and the outer rotating disc; the transmission device is a planetary gear train which consists of a first sun gear, a first planetary gear and a first inner gear ring; the first sun gear is arranged on the middle shaft; the first planetary gear is arranged on the fixed disc; and the first inner gear ring is fixedly connected with the outer rotating disc. Through structural improvement, the inner rotating disc is directly arranged on the middle shaft, and the outer rotating disc obtains power through two-stage transmission, so that the structure is greatly simplified, and manufacturing cost and maintenance probability are reduced; and by combining the planetary grinding discs, the ground and polished texture is reversely crossed, and a polishing effect is good.

The invention discloses a large ceramic plate arranger capable of largely reducing resistance, lowering the energy consumption and the repair rate, which comprises a frame, wherein a front roller table, a transverse roller table, a lifting roller table and a rear bearing roller table are arranged on the frame; the front roller table, the transverse roller table, the lifting roller table and the rear bearing roller table are formed by a plurality of roller bodies aligned at intervals horizontally; every roller table is provided with a driving device to drive the roller body of respective roller table to rotate, the arranging direction of the roller bodies of all the roller tables are in the same direction; the transverse roller table is arranged at the rear part of the delivering direction of the front roller table, and the moving direction is perpendicular to the delivering direction of the front roller table; the transverse roller table is lower than the front roller table; the rear bearing roller table is arranged at one side of the transverse roller table towards the delivering direction; the lifting roller table is arranged at the rear part of the delivering direction of the front roller table; the roller body on the lifting roller table is embedded in the gap between the roller bodies of the transverse roller table.

The invention discloses a structure capable of avoiding cold solder joint of elements. The structure comprises a printed circuit broad (PCB) used for being pasted with the elements. The PCB comprises a solder resisting layer, a copper foil layer and welding pads arranged on the copper foil layer. Welding feet of the elements are aligned to the lower ends of element bodies or higher than the lower ends of the element bodies. A sunken notch is formed in a position, corresponding to the lower portions of the element bodies, of the PCB. The sunken notch is provided with no solder resisting layer or the copper foil layer inside, or the sunken notch is provided with no solder resisting layer and the thickness of the copper foil layer in the sunken notch is smaller than that of the copper foil layer on the periphery of sunken notch. The invention also discloses a corresponding method for avoiding cold solder joint of the elements. The problem that void-welding of the elements is easy to occur due to the fact that the welding feet of the elements are higher than the element bodies is effectively solved.

The invention provides an overpressure-resisting pressure instrument which comprises an instrument main body, wherein a protecting shell made from stainless steel is detachably connected on the outer side of the instrument main body; the instrument main body comprises an instrument plate, an inner shell and a base in turn from top to bottom; a moveable pressure-resisting net is arranged at the upper end of the base; a sensor is arranged above the pressure-resisting net; the powder metallurgy is arranged above the sensor; the powder metallurgy is fixedly mounted on a powder metallurgy mounting body; the upper end of the powder metallurgy is fixedly connected with a copper tube through a damp bolt; a connecting loop sleeves the outer side of the copper tube; a terminal is arranged at the upper end of the connecting loop; under the shaking of the copper tube, the connecting loop is in contact with the terminal; the terminal also is connected with an intelligent meter for showing a measuring result. The overpressure-resisting pressure instrument has the beneficial effects that the instrument main body has two protecting wires in an overpressure measuring process due to the design of the protecting shell and the pressure-resisting net, so that the overpressure resistance of the instrument main body is promoted and the service life of the instrument main body is prolonged.

The invention discloses an easy-to-move agricultural feed mixing device. The device comprises a mixing device and a feeding device. A hydraulic device is connected to a base through a hydraulic rod. Foot margins are fixedly arranged below the hydraulic device. A housing is fixedly arranged on the upper end surface of the base. The upper end of the housing is provided with a motor. The lower end ofa leak-proof cylinder is fixedly and sealedly connected to a main shaft. The outer periphery of the leak-proof cylinder is provided with stirring blades. A feeding inlet is arranged in the right sideof the upper end of the housing. A discharge outlet is arranged in the right side of the lower end of the housing. A magnet block is arranged outside a material collection tank. The mixing device comprises two material storage hoppers. A discharge outlet of the material storage hopper is connected to a feeder. A discharge outlet of the feeder is connected to a material collection tank through a discharge pipe. A gravity sensor is arranged in the material collection tank. The gravity sensor is electrically connected to a digital-analog converter. The digital-analog converter is electrically connected to a cylinder. The mixing device has the advantages of simple structure, use convenience, high mixing quality, movement convenience and long service life.

The invention discloses a corrosion-resistant and waterproof material which comprises a styrene-acrylic emulsion, bitumen, neoprene, butyl rubber, EPDM rubber, polyvinyl chloride, polyisobutene and polyurethane. All the components are mixed according to a ratio to obtain a mixture, and a construction position is coated with the mixture, so that the corrosion-resistant and waterproof effects are exerted. Compared with the prior art, the corrosion-resistant and waterproof material can not only have a waterproof effect, but also resist corrosion and strong acid, and can adapt to severe environments, and besides, the service life is prolonged, the maintaining probability is reduced, and the corrosion-resistant and waterproof material has popularization and application values.

The invention discloses a semi-feeding whole-stalk type multi-row combined sugarcane harvester capable of simultaneously harvesting more than one row of sugarcanes. The semi-feeding whole-stalk type multi-row combined sugarcane harvester comprises at least one harvesting system and is characterized in that each harvesting system comprises a lifting guard, a header, a sugarcane tail leaf clipper, a sugarcane stalk conveying device, a sugarcane leaf stripping device and a sugarcane collecting and distributing trailer, the lifting guard is located in the forefront, the header is arranged at a rear lower position of the lifting guard, the sugarcane tail leaf clipper is arranged above the lifting guard, the sugarcane stalk conveying device is arranged at the tail end of the lifting guard, the sugarcane leaf stripping device is arranged above a cab, the sugarcane stalk conveying device is connected with the lifting guard and the sugarcane leaf stripping device, a clamping conveying wheel group is arranged at the tail end of the sugarcane stalk conveying device, and the sugarcane collecting and distributing trailer is arranged at the rear of the sugarcane leaf stripping device. By the arrangement, the semi-feeding whole-stalk type multi-row combined sugarcane harvester has the advantages that more than one row of sugarcanes can be harvested at the same time, sugarcane harvesting efficiency is increased greatly, various functional parts can be conveniently regulated, and low maintenance probability and cost are achieved.

The invention discloses an anti-settlement intelligent pipeline system. The anti-settlement intelligent pipeline system comprises a pipeline device, pipeline brackets used for supporting the pipelinedevice, a plurality of monitoring terminals used for sensing displacement deviation of the pipeline device and displacement compensation devices used for compensating displacement deviation of the pipeline device, wherein the pipeline device comprises at least one manhole and a plurality of drain lines, and each manhole is connected with the corresponding drain line; the monitoring terminals are used for sensing displacement deviation of the drain lines in a set direction and feeding back information to the displacement compensation devices; the displacement compensation devices are used for compensating displacement deviation of the corresponding drain lines in the set direction. According to the anti-settlement intelligent pipeline system, posture information of the brackets below pipelines can be obtained in real time, relevant conditions of underground pipelines are known conveniently, and produced position deviation can be compensated according to position information of the pipelines. The pipelines can be located in the optimal positions, the pipeline system works normally for a long time, and maintenance probability and cost are reduced.

The invention relates to a hydraulic support and belongs to the technical field of coal mining equipment. The hydraulic support comprises a top beam, a shield beam and a base. The base is provided with a base lifting jack and a pushing rod. A limiting crossing bridge is arranged in the position, above the pushing rod, of the base. The base is provided with a lug plate. The cylinder end of the base lifting jack is connected with the lug plate. A sliding block is arranged at the piston end of the base lifting jack. The position, corresponding to the sliding block, of the inner wall of the base is provided with a sliding way. The base is further provided with a vertical pillar fixing part. The hydraulic support has the characteristics that the contact performance of the base lifting jack and the pushing rod is good, the stability of the base lifting jack and a vertical pillar is improved, the maintenance probability is reduced, the work efficiency is improved, and the security coefficient is high.

The invention discloses a steel-plastic composition corner brace for an aluminum alloy door / window. The steel-plastic composition corner brace comprises an outer layer plastic main body and an interior metal framework, wherein the outer layer plastic main body coats the interior metal framework, multiple reinforcing locating holes are formed in the interior metal framework, framework grooves are formed in the outer side of the interior metal framework, framework protruded blocks are arranged on the inner side of the interior metal framework, the framework grooves are located in outer side grooves of the outer layer plastic main body, and the framework protruded blocks are located at inner side protruded blocks of the outer layer plastic main body. Compared with the prior art, the steel-plastic composition corner brace for the aluminum alloy door / window has the advantages that an improved interior metal framework is mainly utilized, so that the framework grooves of the interior metal framework can directly contact with aluminum alloy, and meanwhile, the framework protruded blocks can bear the pressure of an aluminum alloy frame on the inner side, so that the grooves and the protruded blocks on the two sides are matched to further reinforce the aluminum alloy door / window, and the aluminum alloy door / window is firmer and prevents from cracking and removing; and the service life is prolonged, the maintenance rate is reduced, and popularization and application values are achieved.

The invention provides a household electrical appliance, an operation method thereof and an intelligent control method. The household electrical appliance comprises a case, a display panel, a light source module, a control unit, an operating state switching unit, a control switch and at least one action element in the household electrical appliance, wherein the display panel is arranged on the case and has a display area, the display area has at least two layers of superposed display interfaces, a plurality of display marks, which are different in both dimension and / or quantity, are arranged on different display interfaces, and the display marks on the different display interfaces are separately displayed under the irradiation of light of different wavelengths; the light source module is used for irradiating the display panel; the control switch is connected with the control unit; the control unit is connected with the action elements so as to control the action elements to perform corresponding operations through a control program when the control switch is triggered. The household electrical appliance provided by the invention has the characteristics that the interface is attractive, and the requirements on miniaturization can be met.

A carriage with an inner container comprises carriage stand columns, an upper edge beam, a lower edge beam and frame cross beams, the front ends and the rear ends of the upper edge beam and the lower edge beam are fixed to the upper ends and the lower ends of the carriage stand columns at the front end and the rear end of the carriage respectively, and the frame cross beams are fixed between the lower ends of the carriage stand columns at the left end and the right end of the carriage respectively. Outer box plates are fixed to the outer portions between the upper edge beam and the lower edge beam on the left side and the right side respectively. The carriage is characterized in that an inner smooth board is fixed to the inner side of the outer box plate, and a middle transition steel plate is fixed to the outer box plate at the lower end of the inner smooth board; a plurality of slope supporting plates are evenly arranged between the lower end of the middle transition steel plate and a bottom plate of the carriage at certain intervals, and smooth slope flat plates are fixed to the slope supporting plates. The interior of the carriage is smooth and not prone to bonding, the service life of the carriage plate of the vehicle is prolonged, use is convenient, unloading is easier, cost is lower, and popularization is easier.

The invention discloses a mechanical pile-clamping case, and relates to a main component of a static pile press. The mechanical pile-clamping case comprises a pile-clamping case main body the upper end of which is connected with a main press cylinder, a round wokpiece pile hole is formed at the center of the pile-clamping case main body, two pairs of movable integrated jaws which are connected with the main press cylinder are arranged in the pile-clamping case main body symmetrically, and movable blocks are arranged on the movable integrated jaws, one end of each movable block is in rotary connection with one movable integrated jaw, and the other end of each movable block is provided with a spring. The mechanical pile-clamping case provided by the invention has the advantages of simple manufacture process, low cost, stable performance, convenience in maintenance, long service life, and low cost which is reduced by 40% as compared with that of the traditional pile-clamping case, completely eliminates the problems of pile breakage and slippage, has low maintenance probability, has prolonged service life, is in no need of jaw replacement when applied to piles in various specifications, and is simple and convenient to operate, and the jaw service life is also prolonged.

The invention discloses a single hydraulic prop for mines. The single hydraulic prop for mines include an oil cylinder, movable rods, sleeves, a top cover, a base, a three-use valve and handles, wherein movable rods are sleeved in the sleeves, the base is arranged at the one end of the oil cylinder and handles are arranged on the other end of the oil cylinder, the movable rods are provided with installation portions. Connection portions which match with installation portions in an embedded mode are arranged on sleeves. Sleeves are sleeved outside the movable rods of the single hydraulic prop for mines by connection portions so that the movable rods are protected effectively, damages to the single hydraulic prop due to firecracker are avoided, sleeves have corrosion resistance, the service life of the single hydraulic prop can be extended greatly and environmental pollution is avoided during manufacturing.

The invention discloses a quantitative open hydraulic drive system of an off-road scissors fork high-altitude operation platform, which comprises a front drive, a rear drive, two quantitative pumps and a hydraulic control system. Each of the front and rear drives is provided with two hydraulic driving wheels, comprising a front left wheel, a front right wheel, a rear left wheel and a rear right wheel; four drive modes of disposable control in the hydraulic control system are I-gear forward / reverse drive mode, II-gear forward / reverse drive mode, III-gear forward / reverse drive mode and differential forward / reverse drive mode. The quantitative open hydraulic drive system of an off-road scissors fork high-altitude operation platform realizes the four-wheel differential lock function rarely available in the existing market, including the central differential, the front axle differential, and the rear axle differential function, which greatly reduces the equipment manufacturing cost.

The invention discloses waterproof building material composition. The building material composition is prepared from the following components in parts by mass: 30-40 parts of ordinary Portland cement,10-20 parts of acrylate, 10-20 parts of modified diatomite, 5-10 parts of polyurethane, 5-10 parts of calcium lignosulphonate, 5-10 parts of chlorinated polyethylene resin, 2-5 parts of diatomite, 2-5 parts of nano-silica, 2-5 parts of fly ash, 2-5 parts of quartz sand, 2-5 parts of desulfurized rubber powder, 2-5 parts of latex powder, 2-5 parts of sodium methylenebisnaphthalenesulphonate, 1-3 parts of rubber oil, 1-3 parts of hydroxypropylmethyl cellulose, 1-3 parts of nano antimony tin oxide and 1-3 parts of a stabilizer. The composition has the benefits that a better waterproof effect canbe achieved, the service life can be prolonged and the maintenance probability can be reduced, so that the composition has popularization and application value. Meanwhile, the composition adopts a simple formula, and is low in cost, excellent in performance and suitable for large-scale production.

The invention discloses a flexible contact sealing device applicable to an air preheater. The flexible contact sealing device is characterized by comprising a fixing plate for fixation, a moving plate for realizing flexible contact sealing, and a weighing component for realizing the angle adjustment of the moving plate, wherein the fixing plate is rotationally connected with the moving plate; the weighing component comprises a weighing piece for weighing, a connecting rod for realizing the function of a lever, a support column for supporting a fulcrum for the connecting rod, and a moving joint for connecting the connecting rod and the moving plate. The flexible contact sealing device has the advantages that the weighing piece is used as a power source which is permanent and constant for adjusting the flexible contact; and moreover the whole weighing component is free of a structure which is likely to result in faults, so that the long-term safety operation on the basis that good sealing effect is realized is ensured, the repairing rate is very small, and the operation efficiency of a rotary air preheater is ensured.

The invention discloses an improved gas furnace manhole plug and a gas furnace adopting the improved gas furnace manhole plug. The improved gas furnace manhole plug has low operation weight, reduces maintenance probability and does not influence working of the gas furnace. The improved gas furnace manhole plug comprises a manhole plug body. The manhole plug body has a hollow structure. Walls of the manhole plug body are made of steel plates. The manhole plug body is provided with connection pipes. The connection pipes are communicated with an inner cavity of the manhole plug body.

A motor device for fixing a driving magnet is used in a motor of a pump device, and a position, near to an outer side of an inner peripheral edge in a radius direction, on an end surface (422) of the other side of the driving magnet (42) and a protruding groove are embedded to form fixing.

The invention discloses a mechanical pile-clamping case, and relates to a main component of a static pile press. The mechanical pile-clamping case comprises a pile-clamping case main body the upper end of which is connected with a main press cylinder, a round wokpiece pile hole is formed at the center of the pile-clamping case main body, two pairs of movable integrated jaws which are connected with the main press cylinder are arranged in the pile-clamping case main body symmetrically, and movable blocks are arranged on the movable integrated jaws, one end of each movable block is in rotary connection with one movable integrated jaw, and the other end of each movable block is provided with a spring. The mechanical pile-clamping case provided by the invention has the advantages of simple manufacture process, low cost, stable performance, convenience in maintenance, long service life, and low cost which is reduced by 40% as compared with that of the traditional pile-clamping case, completely eliminates the problems of pile breakage and slippage, has low maintenance probability, has prolonged service life, is in no need of jaw replacement when applied to piles in various specifications, and is simple and convenient to operate, and the jaw service life is also prolonged.

The invention discloses a structure capable of avoiding cold solder joint of elements. The structure comprises a printed circuit broad (PCB) used for being pasted with the elements. The PCB comprises a solder resisting layer, a copper foil layer and welding pads arranged on the copper foil layer. Welding feet of the elements are aligned to the lower ends of element bodies or higher than the lower ends of the element bodies. A sunken notch is formed in a position, corresponding to the lower portions of the element bodies, of the PCB. The sunken notch is provided with no solder resisting layer or the copper foil layer inside, or the sunken notch is provided with no solder resisting layer and the thickness of the copper foil layer in the sunken notch is smaller than that of the copper foil layer on the periphery of sunken notch. The invention also discloses a corresponding method for avoiding cold solder joint of the elements. The problem that void-welding of the elements is easy to occur due to the fact that the welding feet of the elements are higher than the element bodies is effectively solved.

The invention discloses a flexible contact sealing device applicable to an air preheater. The flexible contact sealing device is characterized by comprising a fixing plate for fixation, a moving plate for realizing flexible contact sealing, and a weighing component for realizing the angle adjustment of the moving plate, wherein the fixing plate is rotationally connected with the moving plate; the weighing component comprises a weighing piece for weighing, a connecting rod for realizing the function of a lever, a support column for supporting a fulcrum for the connecting rod, and a moving joint for connecting the connecting rod and the moving plate. The flexible contact sealing device has the advantages that the weighing piece is used as a power source which is permanent and constant for adjusting the flexible contact; and moreover the whole weighing component is free of a structure which is likely to result in faults, so that the long-term safety operation on the basis that good sealing effect is realized is ensured, the repairing rate is very small, and the operation efficiency of a rotary air preheater is ensured.

The present disclosure relates to a gripping arm (2) suitable for a device (1) for gripping, holding and guiding, in particular bottle-shaped containers, wherein the device has a control device (11) to move the gripping arm ( 2) the gripping section (5) moves from the extended position to the gripping position or from the gripping position to the extended position, the gripping arm comprises a bore (10) for supporting the bearing pin (20), to pivotally fix the grab arm (2) in the device (1) and include a force accumulator for moving the grab segment (5) of the grab arm (2) from the grab position to The unfolded position or move from the unfolded position to the grab position. In order to achieve the goal of such a gripping arm which remains sufficiently free of dirt and germs, can thus be cleaned without problems and can be produced quickly and easily, it is provided that the force store has an integral design Elastically deflectable spring tongues ( 6 ) on the gripping arm ( 2 ) are in or come into active engagement with spring tongues of the mirror-symmetrically designed gripping arms ( 3 ) of the device ( 1 ).