190results about How to "Avoid extrusion damage" patented technology

The invention discloses a backlight module and a liquid crystal display device. The backlight module comprises a back plate and a light guide plate, wherein the edge of the light guide plate is provided with a boss which is provided with positioning holes, and the back plate is provided with a rivet matched with one positioning hole; and a buffering structure is arranged between the rivet and the hole wall of the positioning hole. According to the invention, the edge of the light guide plate is provided with the boss which is provided with the positioning holes, so that the arrangement of the positioning holes has no influence on the light guide area of the light guide plate; and simultaneously a layer of buffering structure is arranged between the positioning hole and the rivet, so that the part with more concentrated stress in the positioning hole is prevented from cracking in impact. In addition, when the light guide plate is expanded by heating, the buffering structure also can prevent the extruded damage caused by direct extrusion between the light guide plate and the rivet; and when the light guide plate is contracted by cooling, the spacing between the light guide plate and the rivet is increased so as to be easy to cause swinging, but due to existence of the buffering piece, the swinging and impact of the light guide plate can be prevented by the elastic adjustment of the buffering piece.

The invention belongs to the technical field of printed circuit boards and discloses a semi-flexible circuit board and a preparation method thereof. The preparation method includes manufacturing of a rigid auxiliary board, manufacturing of a semi-flexible core board, laminating of a main board, manufacturing of an outer layer of the main board and a windowing procedure. Manufacturing of the rigid auxiliary board includes: (1) manufacturing an inner-layer circuit of a rigid core board; (2) adopting a flowing type prepreg for laminating the rigid core board to make the rigid auxiliary board, and pressing the prepreg and temporary copper foils onto a surface, adjacent to the semi-flexible core board, of the inner-layer circuit; (3) removing the temporary copper foils by etching; (4) milling grooves. In the procedure of laminating of the main board, the rigid auxiliary board and the semi-flexible core board are laminated by the aid of a non-flow type prepreg. Therefore, a dielectric layer between the rigid auxiliary board and the semi-flexible core board is made by means of twice lamination, interlayer binding force between the rigid auxiliary board and the semi-flexible core board is guaranteed while glue overflowing in a semi-flexible area is reduced, and the problem of proneness to glue overflowing in the prior art is solved.

The invention relates to a device capable of simultaneously obtaining undisturbed soil in vertical and horizontal directions, and belongs to the field of agricultural machinery. The device comprises a handle I, a handle II, a handle III, a pressure rod I, a spring button I, a sleeve I, a pressure rod II, a spring button II, a sleeve II, an outer barrel, a groove IV, a support device, a pin I, an inclined rod, a pin II, a bolt I, a nut I, a soil sampler I, a soil breaker, a steady rest, an outer cover, a bolt II, a nut II, a soil sampler II, a sleeve III, a sliding rail I, a groove I, a groove II, a groove III, a baffle plate I, a sleeve IV, a sliding rail II, a tapered end, an annular ring I, a controller, a control button, a baffle plate II, a stepping motor, a motor box, a center shaft, a connecting shaft I, a gear, a rack, a wall clip I, a wall clip II, a connecting shaft II, a base plate, a triangular support, a straight rod, a groove V, a bolt III, a nut III, an annular ring II, an annular ring III, a switch I, a switch II, a switch III, a pressure rod III, a sleeve V, a total button, a forward start button, a reverse start button and a baffle plate III. The device can realize soil sampling operation in the vertical direction and the horizontal direction as well, and the effect of disturbance for undisturbed soil in the soil sampling process is little, so that semi-automation can be realized.

The invention discloses a polishing device for a lighting lamp cover. The polishing device for the lighting lamp cover comprises a device body, a box body, an suction fan, a collecting box, an electromotor, a rotating shaft, a grinding wheel, a dust suction hood, a dust suction pipe, a support seat, fixed blocks, moving blocks, a pulley and an air cylinder; the bottom of the device body is provided with the box body, one side inside the box body is provided with the suction fan, and one side of the suction fan is provided with the collecting box; the lighting lamp cover polishing device is reasonable in structure, suction is produced by the suction fan, dust particles produced by the lighting lamp cover in the process of grinding and polishing can be inhaled into the collecting box throughthe dust suction hood to avoid the dust particles flying around, so that the impact on the surrounding environment is reduced, and the health of an operator is ensured; and rubber gaskets are installed at the inner sides of both the fixed blocks and the moving blocks to prevent a workpiece from being crushed and damaged and to prevent slipping, one sides opposite to the fixed blocks and the moving blocks are arranged in the shape of an arc, and the clamping area is increased, thus the fastness of clamping is further increased.

The invention discloses a backlight module and a liquid crystal display device. The backlight module comprises a light guide plate, wherein two sides of the light guide plate are provided with a plurality of gaps respectively; the backlight module is provided with riveting columns at the gaps; and buffering pieces are arranged between the riveting columns and the gaps. Buffering materials such as silica gel, rubber and the like are arranged between the gaps and the riveting columns of the light guide plate, so effective buffering is provided when the backlight module is subjected to an impact to prevent the light guide plate from directly bumping with the riveting columns and generating damages; the process is simple; the materials are cheap; and a low cost can be realized. Moreover, the buffering pieces can ensure that the light guide plate and the riveting columns can be always kept in a close contact state to prevent the light guide plate from swaying.

The invention discloses a method for freezing and retaining freshness for industrial mass-storage fresh litchi fruits. The method comprises the following steps: (1) transporting big litchis which are almost mature and are collected from a litchi garden by a refrigerator car back to a processing plant, selecting fruits, pruning, and leaving fruit spur sections on each litchi fruit grain; (2) dipping and blanching in hot water, and removing eggs and foreign matters on a litchi peel; (3) dipping and cooling in normal-temperature water, and cooling in cold water; (4) taking out the litchi, dripping and draining, and putting the litchi into a litchi grain fixing box; (3) putting the litchi and the litchi grain fixing box into a nylon compound bag, and vacuumizing the bag by a vacuum packing machine; (4) quickly freezing the vacuum packing litchi at low temperature; and (5) storing the frozen bagged litchis into a low-temperature storage. With the method, the fresh litchi can be kept for a long time and has good freshness retaining effect. The litchi pulp is fresh, and a husk has constant color and does not break; pulp juice does not run off; the unfrozen litchi fruit has high good fruit rate; and energy is saved in the process of freezing and retaining freshness.

The invention discloses a roller-type auxiliary artificial winter jujube picking device and lifting lock mechanism, which solves the problems that the prior art that the winter jujube picking processis easy to damage and the common manual picking is too complicated in prior and has the beneficial effects of high picking efficiency and low winter jujube damage, and the scheme is as follows: a roller-type auxiliary artificial winter jujube picking device, roller-type picking device comprises at least two rotating rollers, wherein the roller picking mechanism comprises at least two rotating rollers, the two adjacent rotating rollers are arranged at intervals, the relative rotation direction of two adjacent rotating rollers are opposite, and a plurality of comb teeth rods are arranged in thecircumferential direction of each rotating roller, and in the rotating process of the rotating roller, the comb teeth of the two adjacent rotating rollers can be crossed and staggered so as to form acrack for separating the fruit and the fruit stem, the crack is smaller than or equal to the diameter of the fruit, the branches and leaves with the fruits are fed into the crossed regions of the adjacent two rotating rollers under the driving of the comb teeth rod, so as to separate the fruit and the fruit stem through the comb tooth rod.

The invention discloses an e-commerce commodity distribution logistics intelligent management system based on big data. The system comprises a shopping platform, a shopping information identificationmodule, a warehouse logistics general control center, a commodity outer package analysis module, a commodity outer package processing module, a package image acquisition module, a loading image acquisition module, a user display terminal, a cloud server and a database. According to the invention, specific shopping information is obtained through the shopping platform after a user places an order;area warehouse logistics center is screened, the delivery time is arranged and the estimated delivery time is calculated according to the daily fixed delivery time of the regional warehouse logisticscenter; meanwhile, the fixed size specification volume of the overall outer package of the commodity is determined according to the commodity type and purchase number of the commodity; and a commodityoverall outer package photo and a commodity overall outer package loading photo are collected and sent to the user display terminal, and a user checks the outer package of the purchased commodity, the commodity delivery time and the estimated delivery time through the user display terminal.

The invention discloses a stone remover for a mining dump vehicle, and relates to the technical field of manufacturing mining dump vehicles. The remover comprises rear wheel sets consisting of two tires which are arranged at intervals and fixed supporting seats which are positioned above the rear wheel sets and mounted at the bottom of a vehicle hopper, wherein the fixed supporting seats are hinged with a stone removing rod of which one end is naturally drooped and stretched between the two tires through a first pin roll, the middle part of the stone removing rod is connected with a flexible limiting rope, and the other end of the flexible limiting rope is connected to the fixed supporting seats and a hinge joint is positioned behind the first pin roll. Compared with the prior art, the stone remover disclosed by the invention can solve the problems that the stone removing effect of the stone remover of an existing mining dump vehicle is poor, and because tires are easy to extrude, the abrasion is large.

The invention discloses a deviation rectifying welding machine for a battery assembly. The deviation rectifying welding machine for the battery assembly comprises a feeding temporary storage conveyingbelt, a deviation rectifying welding line body and a discharging conveying belt which are sequentially arranged in a butt joint manner, and the deviation rectifying welding line body comprises a conveying belt, a tidying device, a visual positioning device, a deviation rectifying device, welding flow rod feeding devices and a welding device. A solar photovoltaic module is conveyed on the conveying belt, a battery string is arranged on glass, the tidying device is installed at the periphery of the conveying belt, the visual positioning device and the deviation rectifying device are arranged above the conveying belt, the welding flow rod feeding devices are arranged at the two sides of the conveying belt in a butt joint manner, and the welding device is installed on the conveying belt. By means of the manner, the battery assembly can be elastically tidied, horizontal deviation rectification can be conducted on products, and interference between every two adjacent sets of products is avoided; and a scaling powder sprayer is matched with a lead screw for spraying, the spraying requirements of different starting points are met, a welding rod can be stably connected, tight contact between a welding head and a welding point is guaranteed, and products are not damaged.

The invention discloses modified alkali-resistant glass fiber reinforced concrete and a preparation method thereof and belongs to the technical field of building materials. The preparation method comprises steps as follows: alkali-resistant glass fibers and a peach gum liquid are stirred, mixed, soaked and filtered, a filtered product is washed, and soaked alkali-resistant glass fibers are obtained; the soaked alkali-resistant glass fibers are placed in a muffle furnace, nitrogen is introduced into the muffle furnace, the temperature is increased step by step for carbonization, heating reaction is continued, cooling is performed, and pretreated alkali-resistant glass fibers are obtained; the pretreated alkali-resistant glass fibers and a potassium permanganate solution are subjected to a stirred and mixed reaction, a product is filtered, a filtered product is washed and dried, and modified alkali-resistant glass fibers are obtained; river sand, cement, fly ash, silica fume, slag, waterand a silane coupling agent are stirred and mixed, the modified alkali-resistant glass fibers are added for stirring and mixing, and the modified alkali-resistant glass fiber reinforced concrete is obtained. The modified alkali-resistant glass fiber reinforced concrete has excellent impervious performance and mechanical property.

The invention relates to a circuit board protecting device, in particular to a circulating liquid type self-sensing optimal temperature circuit board protecting device. The circulating liquid type self-sensing optimal temperature circuit board protecting device comprises a container containing a circuit board, the container is filled with insulating liquid in which the circuit board is immersed, a temperature sensor is arranged in the insulating liquid, the container is provided with a pipeline connected with the external loop of the insulating liquid, and the pipeline is provided with a circulating power device and a temperature adjusting device; the temperature sensor, the circulating power device and the temperature adjusting device are electrically connected with a controller; a plurality of container liquid flow pipelines can be connected in series or in parallel; multiple circulating power devices and multiple temperature adjusting devices can be connected in series or in parallel to be used according to needs. By the adoption of the circulating liquid type self-sensing optimal temperature circuit board protecting device with the technical scheme, the circuit board has the advantages of preventing high temperature, freezing, moisture, dust, electromagnetism and explosion, extinguishing arcs and being resistant to pressure in deep water.

The invention relates to the field of bridge engineering, in particular to an energy-consuming bridge shockproof block structure and a shockproof method. The energy-consuming bridge shockproof block structure comprises a cover beam and a main beam arranged on the cover beam, a bridge shockproof block is arranged on the outer edge of the cover beam, the inner edge of the bridge shockproof block abuts against the outer edge of the main beam, the bridge shockproof block comprises a concrete block and an elastic block arranged on the inner edge of the concrete block, and the inner edge of the elastic block abuts against the outer edge of the main beam. When the main beam dashes against the bridge shockproof block after being shocked, the elastic block of the bridge shockproof block deforms to absorb energy to resist the shock, and the concrete block of the bridge shockproof block fixedly arranged on the outer edge of the cover beam conducts limiting on the elastic block.

The invention discloses a method and structure for arranging horizontal structural joints on a concrete face of a rockfill dam. According to the method and structure for arranging the horizontal structural joints on the concrete face of the rockfill dam, the concrete face is partitioned by section in sequence from bottom to top when the concrete face (1) is poured, and the horizontal arc-shaped joints (2) are arranged at the positions where the concrete face is partitioned; a plastic waterstop(4) is arranged on the outer surface of the concrete face (1) so that the outer ends of the horizontal arc-shaped joints (2) can be sealed, and a copper sheet waterstop (3) is arranged on the surface, in contact with a dam body (7), of the concrete face (1) so that the inner ends of the horizontal arc-shaped joints (2) can be sealed. According to the method and structure for arranging the horizontal structural joint of the concrete face of the rockfill dam, due to the facts that the horizontal structure joints are arranged on the concrete face and the arc-shaped joint structure is adopted, cracking, squeezing and fractureing, caused by serious uneven deformation, of the face which is in the direction perpendicular to the direction of the axis of the rockfill dam can be effectively avoided, the problem of deformation, the problem of fractures and leakage of the face of the rockfill dam can be well solved, and the reliability of the anti-leakage capacity of the concrete face of the rockfill dam is improved.

The invention discloses a solid towline with good dragging performance for marine seismic exploration. The solid towline is characterized in that the solid towline comprises a main cable, hydrophones,buoyancy sleeves and an outer sheath. The hydrophones are fixedly arranged on the main cable with an equal interval. The hydrophones are electrically connected to corresponding wire cores in the maincable. Each of the buoyancy sleeves is made of a foamed polyethylene material, and foamed polyethylene is extruded on the main cable. The main cable includes the transmission wire cores, a tensile fiber layer and a conductive wire layer. The tensile fiber layer is formed by weaving aramid yarn and / or polyester yarn outside the transmission wire cores. The conductive wire layer includes a set of power lines and a set of signal lines. The power lines and the signal lines are orderly arranged with an equal interval along the circumferential direction of the main cable outside the tensile fiber layer to form the corresponding wire layer. The buoyancy sleeves are fixedly arranged on the main cable with an equal interval, and each of the buoyancy sleeves is between two adjacent hydrophones. Theouter sheath is made of a thermoplastic polyurethane elastomer rubber material and is extruded outside the hydrophones, positioning ends and the buoyancy sleeves, and the outer sheath is seamlessly bonded to the hydrophones.

The invention discloses a continuous rolling clamping device for a flexible substrate, which comprises at least one reference position sensing device, at least one flexible substrate counterpoint device, at least one clamping roller group and at least one clamping force application device, wherein the reference position sensing device is used for sensing a set position of the flexible substrate, and the flexible substrate counterpoint device is used for guiding deviation in real time on the flexible substrate. In the process of clamping or fitting the flexible substrate, the stress of the flexible substrate is sensed by utilizing the clamping force application device to feed pressure back in real time, so that the problem of non-uniform thickness of products in the process of clamping or fitting the flexible substrate is solved, production process elements are prevented from being damaged due to extrusion, the stable conveying effect is controlled to obtain an accurate fit position, and the requirements of flexible electronic products on production process accuracy is met effectively.

The invention provides a method for eliminating underground building curtain water burst and quick sand, and relates to an underground building construction method and a supporting device. The supporting device can be used for directly blocking defects such as underground building curtain water burst and quick sand, and has the advantages that the operation is simple, convenient and easy, no backfilling soil is required, the reliability is high, the accuracy is high, the construction time is saved and the risk is minimized. A defect part or position close to the defect of an underground building curtain, i.e. a position close to a flow eroded hole is selected on one side of the excavated part of the underground building curtain; two boreholes are drilled at the selected position; a grouting system formed by an air compressor, four grouting tanks, two grouting three-way pipes, two control throttle assemblies and two grouting pipes; nano waterproof cement slurry and water glass slurry are respectively grouted through a grouting system A and a grouting system B; the nano waterproof cement slurry and the water glass slurry are grouted from a direction opposite to the direction of water burst and quick sand, the nano waterproof cement slurry and the water glass slurry are quickly solidified after being mixed, a solidified body is piled and gathered in the defect, and finally, the defect part with water burst and quick sand is blocked.

The invention belongs to the technical field of vehicle automatic control and particularly relates to an intelligent driving cab rotating system. The intelligent driving cab rotating system comprises an electric pump, a manual pump, a hydraulic oil cylinder, an oil tank, a hydraulic lock and a limiting device. The oil inlet of the electric pump is connected with the oil tank, and the oil outlet of the electric pump is connected with the manual pump; the oil outlet of the manual pump is connected with the rodless cavity of the hydraulic oil cylinder and the hydraulic lock; the rod cavity of the hydraulic oil cylinder is connected with an oil return pipe; the oil return pipe is connected to the oil tank; the manual pump, the electric pump, the hydraulic lock and the oil tank are arranged on a vehicle frame; the rod cavity of the hydraulic oil cylinder is hinged to a driving cab, and the rodless cavity of the hydraulic oil cylinder is hinged to the vehicle frame; the manual pump and the electric pump drive hydraulic oil to drive the extension rod of the hydraulic oil pump to extend to drive the driving cab to rotate, and when a limit lug touches a stopper, the driving cab stops rotation. The intelligent driving cab rotating system achieves multi-protection, ensures security during rotation of the driving cab and meanwhile obtains high intelligent degree.

The invention belongs to the technical field of water conservancy engineering, and particularly relates to a stainless steel panel rock-fill dam. The stainless steel panel rock-fill dam sequentially comprises a weighting area, an upstream laying area, a stainless steel panel, a steel wire mesh sprayed concrete protective layer, a cushion layer zone, a special cushion layer zone, a transition zone,a main rock-fill zone, a variable rock-fill zone, a downstream rock-fill zone, a downstream slope protection and a riprap zone from upstream to downstream. The stainless steel panel is arranged on the surface of the cushion layer zone and fits with a dam toe slab and a dam crest wave wall bottom plate. The stainless steel panel is adapted to settlement deformation of the panel rock-fill dam, deformation of the stainless steel panel is coordinated with the settlement deformation of the dam, and the situation that the panel disengages from a dam body due to the settlement of the rock-fill dam body is prevented.

The invention relates to an aligning and separating device for harvesting fruit seedlings of fruits under the ground, which belongs to the technical filed of agricultural machinery. The device comprises a seedling supporting mechanism and a digger blade, and a seedling throwing device and a wheel cutter separating mechanism which are respectively located above and below the rear part of the harvesting platform, the front part of the harvesting platform and the seedling throwing device are connected by a conveying mechanism consisting of a main conveying device, the front part of the harvesting platform and the separating mechanism are connected by a aligning and conveying device located below the middle section of the main conveying device and arranged obliquely; the main conveying deviceconsists of a left and a right clamping and conveying chains which are respectively looped, the adjacent edges of the front sections and the rear sections of the left and the right clamping and conveying chains are clamped and involutive, the middle section of the right clamping and conveying chain is separated by a sub-chain guide rail, and the right side of the sub-chain guide rail is provided with an upper stalk pressing brush which is in a flexible clamping with the middle section of the left clamping and conveying chain. With the device, a flexible claming to the seedling stems can be formed, the thick seedling stems cannot be pulled off and the thin seedling stems cannot be leaked out, thereby solving the difficulty existing in the prior art.

The invention provides a gap control type metal oxide lightning arrester. The lightning arrester comprises unit sections which are sequentially connected in series in a vertical direction, wherein each unit section comprises an external insulation sleeve and a metal oxide resistance sheet, the metal oxide resistance sheet is arranged in the insulation sleeve, two ends of a bottom unit section of the lightning arrester are connected in parallel with a control unit, the control unit comprises a gap and a controller, the controller is connected with the gap, the controller is used for detecting voltages of two ends of the lightning arrester and simultaneously triggering the gap to be conducted according to the detected voltage values, and the bottom unit section is short-circuited when the gap is conducted. With the lightning arrester provided by the invention, the residual voltage of the lightning arrester can be reduced on the basis of maintaining a performance parameter of the metal oxide resistance sheet for an existing lightning arrester unchanged, and the protection level and the shock-resistant performance of the lightning arrester are improved.

The invention belongs to the technical field of civil engineering, and particularly relates to a corrugated steel plate coated cold-formed thin-walled shear wall with a self-resetting energy dissipation support. The corrugated steel plate coated cold-formed thin-walled shear wall comprises a wall panel, a steel wall body framework is arranged on the wall panel, a self-resetting energy dissipation supporting assembly and an anti-pulling piece are arranged in the steel wall body framework, one end of the anti-pulling piece is connected with the steel wall body framework, the other end of the anti-pulling piece is connected with the self-resetting energy dissipation supporting assembly, a self-tapping screw is arranged on the steel wall body framework, and a turn buckle is arranged between the self-resetting energy dissipation supporting assembly and the anti-pulling piece. By arranging the self-resetting energy dissipation supporting assembly, in the using process, the energy dissipation support and the cold-formed thin-walled steel keel type shear wall are connected through bolts, rod pieces in the support are connected through nuts, assembling is convenient, and the problem caused by the fact that the technical quality of constructors is not too hard can be solved; and after the building is dismantled, the steel can be recycled, so that the generation of construction waste is reduced.

The invention relates to a prestress orthogonal laminated wood coupled shear wall capable of achieving swinging and self-resetting. The shear wall is characterized by comprising an orthogonal laminated wood coupled wall column (1), orthogonal laminated wood connecting beams (2), a reinforced concrete foundation (3), prestress reinforcing steel bars (4) and connectors (5). The shear wall has the advantages that earthquake resistance is achieved through the swinging and self-resetting of the wall column and the rotation of the connecting beam ends, earthquake energy can be dissipated, residual deformation after an earthquake is small, and component replacement after the earthquake is facilitated by controlling an energy dissipation mechanism and a failure mode; meanwhile, the structure of the coupled shear wall satisfies the external wall hole opening requirements, and the shear wall is simple in structure, convenient in construction and convenient to popularize.

The invention discloses a sintered brick setting machine. The sintered brick setting machine is characterized in that a balance frame is composed of a vertical frame and a multi-connecting-rod telescopic frame, a lifting component is formed by a servo motor, a driving chain wheel, a first fixed pulley, a second fixed pulley, a chain and a driven chain wheel, the chain is sequentially connected with the driving chain wheel, the driven chain wheel, the first fixed pulley and the second fixed pulley, and a balance weight is connected with the tail end of the chain; and a green brick clamping device comprises a clamping disc, a telescopic frame and a clamp, the clamp disc is connected with a rotating device, air cylinders are fixed to the telescopic frame, clamping plates penetrate telescopic rods, every two adjacent clamping plates are connected to form linkage through a corresponding connecting rod, the clamping disc is provided with air storage tanks, and the air cylinders communicate with the air storage tanks through air distributing pipes, and the air inlet ends of the air distributing pipes are connected with air pressure adjusters. According to the sintered brick setting machine, the clamping force of the clamping plates can be finely adjusted, green bricks are prevented from being extruded and damaged, a lifting device can prevent the green brick clamping device from swinging in the ascending process, the green bricks can stably move and the setting quality and efficiency are improved.

The invention discloses a wave generation and combined water-absorbing system for deep-water ice test tank with horizontal cylinder in circular-track oscillation. The system comprises a wave generation mechanism, a first wave-absorbing mechanism, a second wave-absorbing mechanism, a first longitudinal frame, a second longitudinal frame, an infrared sensor, a simulated ice layer and a test tank body; the wave generation mechanism is arranged between the first wave-absorbing mechanism and the second wave-absorbing mechanism and close to the first wave-absorbing mechanism; the wave generation mechanism is used for producing bending gravity wave in one-way propagation; the first wave-absorbing mechanism and the second wave-absorbing mechanism are used for evading the reflection of the bendinggravity wave on a sidewall of the test tank body; the simulated ice layer is arranged at an opened end of the test tank body; the first longitudinal frame is arranged above the wave generation mechanism, and the second longitudinal frame is arranged at the inner wall of one side corresponding to an opening of the test tank body; the infrared sensor is arranged above the simulated ice layer and used for monitoring a bending deformation condition of the simulated ice layer. The system disclosed by the invention can precisely produce the one-way advancing bending gravity wave of the ice tank, andcan effectively adjust a waveform parameter.

The invention belongs to the technical field of draught fans and particularly relates to a draught fan for metal smelting. The draught fan comprises a rack, a three-way air guiding tube, a transmission module and two air supply modules, wherein the transmission module is mounted on the front side of the rack; the two air supply modules are mounted on the two sides of the transmission module and onthe front side of the rack; the three-way air guiding tube is mounted above the transmission module and on the front side of the rack; the two side arms of the three-way air guiding tube communicatewith the two air supply modules separately; a motor is mounted on the rear side of the rack and is in transmission connection with the transmission module; the transmission module comprises a drivingwheel, a driven wheel, a two-sided rack and an arc-shaped gear wheel; the two ends of the two-sided rack extend into the two air supply modules separately; and a thread disc, a switch unit and a closing unit are sequentially arranged in each of two air supply tubes. The draught fan utilizes the air supply tubes to discharge hot-blast air in an uninterrupted manner; and in addition, the two air supply tubes convey the air alternately, so that cooling of the air supply tubes is facilitated, the service life of the air supply tubes is prolonged, and normal hot-blast air supply operation is ensured.

The invention relates to an anti-abrasive device for a heat exchange tube bundle in a trichlorosilane synthetic furnace. The anti-abrasive device comprises a synthetic furnace heat exchange tube bundle composed of an inner ring heat exchange tube bundle, a middle ring heat exchange tube bundle and an outer ring heat exchange tube bundle, wherein an outer fixing ring is arranged on the outer side of the outer ring heat exchange tube bundle; a middle fixing ring is arranged on the outer side of the middle ring heat exchange tube bundle; an inner fixing ring is arranged on the outer side of the inner ring heat exchange tube bundle; the middle fixing ring is respectively connected with the outer fixing ring and the inner fixing ring through sieve plates; base plates are arranged between the outer side of the outer ring heat exchange tube bundle, between the outer side of the middle ring heat exchange tube bundle and the middle fixing ring, and between the outer side of the inner ring heat exchange tube bundle and the inner fixing ring; 99 porcelain aluminum oxide ceramic clamp sleeves are arranged on the outer surfaces of the middle parts of the inner ring heat exchange tube bundle and the middle ring heat exchange tube bundle; O-shaped seal rings made of chloroprene rubber resin are arranged at two ends of the ceramic clamp sleeves; and ceramic fixing rings are arranged on the O-shaped seal rings. According to the anti-abrasive device, the service life of equipment is prolonged; and the maintenance and replacement frequency and cost of the tube bundles are reduced.

The invention relates to the technical field of building partition joints, and discloses an assembly-type sandwiched heat-preservation multi-ribbed composite outer wall plate partition joint device and a construction method. The device comprises inner filler, outer filler and at least two assembly-type sandwiched heat-preservation multi-ribbed composite outer wall plates; the inner filler is fixed on the inner side of a partition joint formed between every two adjacent assembly-type sandwiched heat-preservation multi-ribbed composite outer wall plates; the outer filler is fixed on the outer side of the partition joint formed between every two adjacent assembly-type sandwiched heat-preservation multi-ribbed composite outer wall plates. Compared with a partition joint processed through an existing technology, the constructed partition joint has the advantages that the outer heat preservation performance is improved by 2% to 5%, the energy consumption rate is decreased by 5%-10%, the heat transfer coefficient is decreased by 6% to 8%, and the bonding strength reaches the building bonding strength index required by national regulation; the phenomenon that a heat preservation layer and a protection layer are subjected to extruding destruction caused by stress at high and low temperature can be prevented from occurring, the heat working performance of the outer wall plates is improved, and the phenomenon that the outer wall plates generate the cold or heat bridge effect is avoided.

The invention provides an automated electronic device interface service life detection device. The device comprises a working table surface and a mobile device; a fixing plate is fixedly mounted at the upper left corner of the working table surface; six sets of vacuum suckers which are connected in series with one another are fixedly mounted on the fixing plate; the working table surface is provided with one set of air extracting pump which is connected with the six sets of the vacuum suckers and is adjacent to the right side of the fixing plate; the HDMI-A Female end of an MHL adapter is in plugging connection with one end of a high-definition signal transmission line; and the other end of the high-definition signal transmission line is in plugging connection with a display. According tothe automated electronic device interface service life detection device of the invention, when hot plugging detection operation is performed, the hot plugging operation can be realized automatically,cyclically and repeatedly by means of the work of an electric cylinder A, so that an operator can judge the service life of the plugging of an interface just through observing whether the data of an MHL output device and the display are normally transmitted, manual operation is not required, and the labor amount of the operator can be reduced.

The invention discloses an automatic green brick stacking machine of a brick kiln. The machine is characterized in that a telescoping frame is connected to the bottom part of a chuck, wherein a clamp is fixed to the inner wall of the telescoping frame; a cylinder is fixed to the telescoping frame; a clamping plate passes through a telescoping rod; the cylinder communicates with an air storing tank through an air distributing tube; the air distributing tube is connected with an air pressure regulator; a base on which a gyring support is arranged is connected to the top part of the chuck; a pressing plate on which a speed reducer is arranged is rotatably connected to the gyring support; a connecting gear is connected to an output shaft of the speed reducer; a spring column is arranged between the pressing plate and the gyring support; the pressing plate is connected with a lifting device; a moving device comprises a first frame plate, a second frame plate and a tension spring column; a driving wheel which is driven through a servo motor is arranged on the first frame plate; a driven wheel is arranged on the second frame plate. With the adoption of the machine, each green brick can be successfully clamped; the chuck can self-adaptively adjust the inertia force during rotating; when pausing, the moving device can self-adaptively buffer the inertia impacting force, so that the stability of the green brick in moving can be improved, and as a result, the green brick stacking efficiency can be improved.