46results about How to "Solve scale" patented technology

The invention discloses a concrete wall and bottom plate water seepage crack repair method. The method comprises the following steps that wall and bottom plate cracks are found out and marked; the crack of which the width is larger than 0.3 mm is subjected to digging into a V-shaped groove; dust, dirt and loose parts of the surface of concrete in the V-shaped groove area are removed and washed with water; layered dense blocking and maintenance are conducted on the V-shaped groove through a waterproof leaking stoppage part, and meanwhile, a grouting nozzle is implanted; grouting holes are obliquely drilled in the two sides of the crack, and a grouting nozzle is installed; and after final set of the waterproof leaking stoppage part, the grouting holes are circularly subjected to pressure grouting; and after grout is completed solidified, the grouting nozzles are disassembled. According to the method, by obliquely drilling the grouting holes in the two sides of the crack and installing the grouting nozzle, a plurality of channels communicating with the interior of the crack are formed, the water pressure of the interior of the crack can be reduced, grout can be injected into the crackconveniently in the later period, through permeation of the grout, the water seepage crack is sealed after the grout is solidified, and accordingly, the water seepage crack leaking stoppage effect isachieved so that underground construction water seepage accidents can be avoided.

The invention discloses an elastoplastic device for expansion joints in buildings and road engineering. The elastoplastic device comprises a cast-in-place concrete layer and a bituminous concrete pavement layer arranged on the upper end of the cast-in-place concrete layer, wherein the center of the cast-in-place concrete layer is provided with an expansion joint filled with sponges or foams; the center of the bituminous concrete pavement layer is provided with a notch which is filled with expansion elastomers and broken stones and is internally provided with a cover plate; lower expansion bolts are symmetrically arranged around the upper part of the cast-in-place concrete layer; lateral expansion bolts are symmetrically arranged around the inner side of the bituminous concrete pavement layer; and steel bars are arranged between the end parts of the lateral expansion bolts and the lower expansion bolts. The device disclosed by the invention has the advantages of simple structure and reasonable design, and is convenient and rapid in construction; the performance requirements of the expansion joints can be met, special expansion members are not needed to be arranged, and the problem of short service life of other expansion devices under small stroke can be effectively solved; and the device disclosed by the invention has the characteristics of good elasticity and neat and beautiful appearance, and can bear vehicle load.

The invention relates to a high-vacuum multi-layer heat-insulating deep-cooling double-shell spherical storage tank, which comprises an outer spherical tank and an inner spherical tank, wherein the inner spherical tank is placed in the outer spherical tank; the inner spherical tank is supported in the outer spherical tank through an upper fixed supporting member which is arranged on the upper part of the inner spherical tank and a lower fixed supporting member which is arranged on the lower part of the inner spherical tank; a laminated inner supporting member is arranged between the inner spherical tank and the outer spherical tank; a heat-insulating material is coated on an outer surface of the inner spherical tank; a reinforcing plate is arranged on the outer surface of the outer spherical tank; the reinforcing plate is welded with an upper supporting column through an equator tangential structure; the upper supporting column is fixedly connected with a lower supporting column through the heat-insulating material; and a pulling rod is connected between the upper supporting column and the lower supporting column. By adoption of a mixed spherical shell structure, the supporting columns are welded on the reinforcing plate on the outer surface of the outer spherical tank through the equator tangential structure, so the carrying capacity of the supporting columns is ensured; and a high-vacuum multi-layer heat-insulating cold-insulating structure is adopted between the inner spherical tank and the outer spherical tank, and the inner supporting member has a laminated supporting structure, so the problem of telescoping of the supporting member caused by temperature change is solved, and the light weight of the storage tank and volume maximization are realized.

The invention relates to a vehicle stopper, in particular to a rotatable multisection telescopic barrier vehicle stopper which is used in intersections, such as highway toll stations, vehicle exits and entrances, dwelling districts and the like for limiting the free passing of vehicles and pedestrians. The rotatable multisection telescopic barrier vehicle stopper comprises a box body, wherein a control device and a power device are installed in the box body; an output shaft is installed on the box body; a barrier main pipe is outwards expanded along the radial direction of the output shaft; multiple sections of telescopic barrier accessory pipes are sleeved in the barrier main pipe; and the upper part of the box body is provided with a steel wire rope frame or a telescopic pipe frame. By adopting a telescopic barrier structure, the space occupied by the vehicle stopper during opening on the road is reduced. A support rolling wheel and a diagonal steel wire rope (or a diagonal telescopic pipe) improve the strength of a blocking rod, and especially, the problem of influence on the blocking rod by strong wind is solved. The rotatable multisection telescopic barrier vehicle stopper has large barrier shrinkage ratio and is suitable for use in the occasion with limitation on height. The barrier adopts horizontal rotation for 90 degrees, is more suitable for a one-way passage and improves the passing rate. By adopting a multipipe structure, the telescopic problem of the barrier blocking rod is solved.

The invention discloses a curtain telescopic rail. A customer can control expansion amount of a cyclo-conveyor belt between a driving wheel and a guide wheel and the expansion amount of the cyclo-conveyor belt between a first fixed pulley and a second fixed pulley as own required, so that an inner guide rail can perform expansion along an outer guide rail, the guide rail length is adjusted, and the adaptability and the usability are extremely high; by arranging the cyclo-conveyor belt as a belt segment and a cord segment the driving wheel is driven through the belt segment, the driving error and blocking are reduced, the problems of the easy slipping of the driving wheel and the cord and the expansion and the limited driving are solved, and the torque can be accurately transmitted. And thetelescopic rail can be used for the field of the curtain.

The invention discloses a safety and wind-resistant metal roofing structure system including a roofing system, a main steel structure and a roof decoration structure. The roofing system is connected with the main steel structure by sandalwood strips, wherein the sandalwood strips include main sandalwood strips and auxiliary sandalwood strips. The main sandalwood strips are arranged on the upper portion of the main steel structure, and are connected with the main steel structure by connectors. Sleeved pipes are arranged on the main sandalwood strips, and long circular holes are formed in the main sandalwood strips. The sleeved pipes penetrate the long circular holes, and are connected with the main sandalwood strips by bolt assemblies. The sleeved pipes and the main sandalwood strips are positioned by lug plates. Cushion plates are arranged between the bolt assemblies and the long circular holes, and the sleeved pipes are connected with the main sandalwood strips by connecting steel plates. The auxiliary sandalwood strips are connected with the main sandalwood strips by connecting plates. The roof decoration structure is arranged on the upper portion of the roofing system, and is connected with the roofing system by U-shaped adapters. The safety and wind-resistant metal roofing structure system is provided with the sleeved pipes and the lug plates, and the connection between thesleeved pipes and the main sandalwood strips is realized by the bolt assemblies penetrate through the long circular holes, so that the problem of flexibility of the sandalwood strips caused by temperature difference is solved well.

The invention provides an ultrahigh-voltage direct-current sleeve joint. The ultrahigh-voltage direct-current sleeve joint comprises a conducting pipe as well as an epoxy pipe and a supporting cover plate which are arranged coaxially relative to the conducting pipe, wherein the supporting cover plate is provided with a through hole which is vertical to the axial direction of the supporting cover plate and coaxial with the conducting pipe and the epoxy pipe; the conducting pipe passes through the through hole and is connected with a top cover plate; a part, surrounded between the supporting cover plate and the top cover plate, of the conducting pipe is provided with a corrugated pipe which is positioned at the upper end of the supporting cover plate and connected with the supporting cover plate and the top cover plate. Compared with the prior art, the ultrahigh-voltage direct-current sleeve joint disclosed by the invention has the advantages of solving the problem of extension and contraction of the conducting pipe by enabling the corrugated pipe to extend and contract correspondingly along with the extension and contraction of the conducting pipe, solving the problem of metal friction caused by hard connection between parts, improving the sealing reliability, guaranteeing good leakproofness of a sleeve chamber body, improving the problem of easy loosening caused by own gravity of the parts, simplifying the installation process of the conducing pipe and lowering the time cost.

The invention provides a pedestrian route matching method based on the alignment of geomagnetic field intensity sequence feature points. The method comprises the following specific steps: finding a group of spatially consistent feature points from two groups of to-be-processed magnetic field intensity sequences, aligning two sequences at the group of the feature points, sequentially aligning the other feature points nearby by taking the group of the feature points as a standard, and carrying out linear interpolation to finish length unification of two sequences, so to obtain two groups of newsequences; (2) calculating correlation coefficients of the two sequences; (3) repeatedly carrying out the steps, so as to obtain the maximum correlation coefficients of the two sequences; and (4) setting a similarity threshold, and judging the two sequences with the maximum correlation coefficients larger than the threshold as data in the same route, wherein the relative positions of the sequencesare determined according to the relative positions of initial points of two groups of the aligned sequences. According to the method, the feature points in the magnetic field sequences are recognized, so that the size unification of geomagnetic sequences is finished, and furthermore, the accurate matching of geomagnetic sequences in the same space is realized.

The invention relates to a mini scalpel consisting of a blade, a blade holder and a blade sheath; the blade is fixed on the front of the blade holder and the blade holder is slidingly sleeved with the blade sheath; a side unlock button, a second sliding groove, a front and back lock structure are designed between the blade holder and the blade sheath to solve the problems concerning the extension, contraction and positioning of the blade with respect to the blade sheath. Compared with existing scalpels with blade sheaths, the mini blade is simple in structure, small in size and low in production cost. In addition, the mini scalpel is provided with a first sliding groove, and a deadlock groove is arranged in front of the first sliding groove. When the mini scalpel is used in the operation, the side unlock button is pushed backwards directly so that a first bulge arranged on the blade sheath passes through the latch block through the first sliding groove and falls into the deadlock groove. At the same time, the blade is received in the blade sheath and deadly locked, so that the mini scalpel can not be used again and the safety problem of the second use of the scalpel is completely removed.

The invention relates to an external wall system repair method and belongs to the technical field of building construction. The method comprises the steps that after an external wall is preprocessed, the positions of wall keels are verified and marked; isolating bars are arranged transversely along a wall body, and meanwhile, the wall body is coated with a waterproof breathable film; after aluminum alloy parts are mounted and fixed, G / 1 bars and XPS plates are paved from bottom to top, and then network cloth plastering is performed; and finally, vertical deformation joints are arranged in the horizontal direction. The external wall system repair method is applied to external wall repairing, and has the advantages of reliable anchorage, double-layer waterproofness and the like.

The invention discloses intelligent water affair water supply meter data collection equipment, and relates to the field of water supply meter data collection. The intelligent water affair water supplymeter data collection equipment includes a water meter body, an input pipe is connected to one end of the water meter body, and a filter barrel is arranged inside the input pipe; a first filter screen is connected to one side of the inside of the first filter screen, and a second filter screen is connected to one side of the first filter screen; and a sealing cover is connected to the bottom endof the filter barrel, a meter core is arranged inside the water meter body, and a dial plate is connected to the top end of the meter core. According to the intelligent water affair water supply meterdata collection equipment, the water meter body, the input pipe, the filter barrel, the first filter screen, the second filter screen, the sealing cover, a bolt and an input port are arranged, the first filter screen and the second filter screen are installed inside the input pipe to perform filtering work, the problem that impurities and incrustation in water are not filtered in the water meterbody is solved, an effect of avoiding blockage inside the water meter body is achieved, the blocked impurities can be cleaned out by turning the sealing cover, and the operation is simple and cleaningis convenient.

The invention belongs to the field of water heaters, and particularly relates to an electric water heater. According to the water heater, a water pump circulation mode is adopted, water in an inner container is pumped into a heating unit to be heated and then flows back into the inner container, two heating modes of instant heating and heat storage are achieved, and a water pump does not work during instant heating; through further upgrading, the proportion of cold water and hot water entering the hearing unit can be adjusted to achieve constant-temperature water outlet, two waterways can be provided for supplying water outwards, one waterway passes through the heating unit, and the other waterway directly flows out of the inner container, and two paths of water supply with different watertemperatures, one path is high-temperature and the other path is constant-temperature can be realized. The water heater aims to realize two heating modes of instant heating and heat storage, realizea compatibilization effect, simultaneously realize high-temperature water outlet and constant-temperature water outlet, and play a compatibilization effect when in a heat storage mode; if the temperature of water stored in the inner container is controlled to be 55 DEG C or below, the problem of scaling can be solved; and due to the capacity increasing effect of the structure, the inner containercan be heated to 55 DEG C, and the using effect of about 75 DEG C can also be achieved.

The invention discloses a closed type water boiler which comprises a main liner, an auxiliary liner, a water inlet pipe, a water outlet pipe and an electric heater for heating water; the water inlet pipe penetrates into the main liner and the lower end of the water inlet pipe communicates with an inner cavity of the main liner; a water inlet electromagnetic valve is arranged at the part, located outside the main liner, of the water inlet pipe; the water outlet pipe penetrates into the main liner and the lower end of the water outlet pipe communicates with the inner cavity of the main liner; a water outlet electromagnetic valve is arranged at the part, located outside the main liner, of the water outlet pipe; an inner cavity of the auxiliary liner communicates with the part, below the water inlet electromagnetic valve, of the water inlet pipe through a by-pass line; a floating part is arranged in the by-pass line; an exhaust pipe penetrates into the auxiliary liner and the lower end of the exhaust pipe communicates with the upper part of the inner cavity of the auxiliary liner; a floating part moves downwards in place and plugs the by-pass line through a first sealing part; and the floating part moves upwards in place and plugs the lower end of the exhaust pipe through a second sealing part. The water in the main liner can be heated 110 DEG C on the condition that pressure received by the main liner is low, so that the liner manufacturing cost is reduced, and the use safety of the whole water boiler can be improved.

The invention relates to a cardiovascular anti-blocking hydrops drainage device, and effectively solves the problems that an existing drainage tube cannot effectively control hydrops flow and flow velocity of a patient, and meanwhile, the drainage tube cannot be guaranteed not to be blocked. The technical scheme of the invention for solving the problems is that the cardiovascularanti-blocking hydrops drainage device comprises a shell; a negative pressure bin and a water supply bin are respectively formed on the left side and the right side inside the shell; the inside of the water supply bin is rotationally connected with a pipe collecting disc; the pipe collecting disc is wound with a telescopic water pipe; the lower end of the telescopic water pipe is connected with a water supply pump fixedly connected to the bottom of the water supply bin; the left side of the shell is fixedly connected with a communicating connecting pipe; the inside of the communicating connecting pipe is coaxially and fixedly connected with a connecting sleeve; the outer wall of the connecting sleeve is coaxially and rotationally connected with a spiral conveying paddle; the left end of the communicating connecting pipe is fixedly communicated with a threaded connector; the left end of the threaded connector is connected in a detachable mode with a flow guide pipe; the inside of the flow guide pipe is fixedly connected with a sliding rail; a sliding ball matched with the sliding rail is connected in a left-and-right sliding mode inside the flow guide pipe; and the telescopic water pipe at the left end is arranged in the connecting sleeve. The cardiovascular anti-blocking hydrops drainage device is concise in structure and high practicality.

A volumetric steam wall-hanging stove comprises a shell, an inner container and a burner. The inner container is sleeved with the shell. A containing cavity used for containing hot water is formed between the shell and the inner container. A burning chamber is formed in the inner container. The burner is communicated with the burning chamber and used for providing mixed gas of gas and air, wherein the mixed gas can be burnt in the burning chamber. A steam outlet is formed in the top of the shell, wherein the steam outlet enables the containing cavity to be communicated with a steam device. A plurality of tube nests are arranged in the inner container. The two ends of each tube nest penetrate out of the inner container and are communicated with the containing cavity. At least one heat-exchanging tube is arranged in the containing cavity and the two ends of the heat-exchanging tube penetrate through the two ends of the shell and form a water inlet connector and a water outlet connector respectively, wherein the water inlet connector is communicated with a water outlet connector of a hot water consumption device and the water outlet connector is communicated with a water inlet of the water consumption device. According to the volumetric steam wall-hanging stove, the purposes of energy conversation and emission reduction can be achieved and steam can be output for daily use.

Disclosed is a floating multi-gear water level and water temperature sensor for a solar water heater. A hollow floating tube or floating ball serves as a main apparatus, a connection rod is connected with a movable sheet, a movable hole for fixing the float tube connection rod is formed in the center of the movable sheet, and a high-temperature-resistant magnet is arranged at the lower end of the movable sheet. Water in a water tank only plays a buoyancy role and is irrelevant to scaling. When the floating tube floats, the connection rod moves simultaneously, so that the high-temperature-resistant magnets on the movable sheet move reversely, magnetic induction water level reed tubes are fixed at the corresponding positions of the high-temperature-resistant magnet on the movable sheet on a hollow fixation rod, the number of the reed tubes is accordant with the number of gears, two ends of the reed tubes are welded through high-temperature-resistant leads, the tails of the leads are led out of the tank through the hollow fixation rod to be welded with other elements to be connected with a display screen. The water temperature is measured through a temperature sensor and led into the water tank directly through the hollow fixation rod.

The invention discloses a gas-solid phase catalytic reactor comprising a housing and heat exchanging internal parts, wherein an air inlet and an air outlet are formed in the top and the bottom of the housing respectively; the heat exchanging internal parts comprise a plurality of heat exchanging pipes; two ends of each heat exchanging pipe are connected with the inner wall of the housing respectively; jackets are arranged on the outer wall of the housing at the joints; and a central heat exchanging pipe group can be arranged in the internal center of the housing as required. Due to the housing with a flange coupling end socket, the gas-solid phase catalytic reactor also can be used for reconstruction of the conventional reactors with housings. Due to the special compact pipe arranging manner, the gas-solid phase catalytic reactor has the advantages that the heat exchanging capability is high; the structure is reliable; the manufacture is convenient to manufacture and maintain; the investment is low; and the suitability for new construction and reconstruction of the reactors is high.

The invention discloses a method used for underground construction side wall and bottom plate water seepage treatment. The method includes the following steps that side wall and bottom plate cracks are subjected to leakage blocking, and then thorough cleaning is conducted; a water conveying plate is comprehensively laid on a cleaned side wall and a cleaned bottom plate, and the water conveying plate communicates with a draining system of the underground construction; and a concrete layer is poured on the laid water conveying plate in a covering manner. By means of the method, leakage blockingis firstly conducted on water leakage positions of the cracks on the side wall and the bottom plate firstly, and the water discharging amount of the cracks can be greatly reduced; the water conveyingplate is arranged on the side wall and the bottom plate so that seeping water between the water conveying plate and the side wall and between the water conveying plate and the bottom plate can be discharged through the draining system of the underground construction; the concrete protection layer is poured on the water conveying plate in the covering manner, and the water conveying plate is prevented from being damaged in the use process; and by means of the method, the side wall and bottom plate water seepage problem is dealt with in a blocking and conveying draining combined manner, and therefore water seepage parts can be isolated, and water leaking accidents are prevented from happening to the underground construction.

The invention discloses a flexible seamless expansion joint connecting material and a preparation method thereof. The flexible seamless expansion joint connecting material is prepared from 17 to 24 mass percent of high-elasticity sealants, 75 to 85 mass percent of aggregates and 0 to 8 mass percent of filling materials. The preparation method of the flexible seamless expansion joint connecting material comprises the following steps of heating the aggregates to a first preset temperature; uniformly mixing the aggregates and the filling materials to form a mixed material; heating the high-elasticity sealants to a second preset temperature; partially or totally adding the heated high-elasticity sealants into the heated mixed material; performing uniform mixing; reaching a third preset temperature; forming the flexible seamless expansion joint connecting material. The flexible seamless expansion joint connecting material has the advantages that the cost is low; the influence on operators is small; the field manual stirring is not needed; a joint connecting layer formed by the joint connecting material cannot easily generate problems of separation, cracking, tracks, pushing displacementand the like.

The invention discloses a composite integrated membrane filter element. The composite integrated membrane filter element comprises a carbon ceramic tube membrane, ion exchange active carbon fiber membranes, brominated resin and a membrane core tube, wherein the membrane core tube is provided with a vertical tube part; the ion exchange active carbon fiber membrane, the brominated resin and the ion exchange active carbon fiber membrane are arranged in the tube cavity of the vertical tube part from the opening end to the other end in sequence; the carbon ceramic tube membrane covers the peripheral side of the vertical tube part; water penetrates from the carbon ceramic tube membrane and enters the inner cavity from the opening end of the vertical tube part of the membrane core tube, and flows out from a water outlet of the membrane core tube after being filtered and softened by virtue of the ion exchange active carbon fiber membrane, the brominated resin and the ion exchange active carbon fiber membrane in sequence, and remaining mineral substances in water are about 20%. The composite integrated membrane filter element disclosed by the invention is suitable for filtering northern drinking water with great hardness without losing mineral nutrients in water, and can be used for obtaining drinking water which is free of thermonatrite or water scales in the sensory, and relatively good in mouthfeel.

The invention discloses a device and a method thereof for intelligently identifying a treating head. The device disclosed by the invention comprises a microcomputer, a display screen and a shock-wave treating gun; the shock-wave treating gun comprises a gun body, a conduit, an impact head, an identity (ID) module, a treating head and a probe of the ID module, wherein the impact head, the ID module and the probe of the ID module are arranged inside the treating head, the conduit is installed inside the gun body and is also connected with the treating head in a screwing way, and the probe of the ID module and the ID module are connected in an elastic contact way; and the microcomputer is connected with the gun body by a data line, the information of the treating head is read and written by the microcomputer, and the display screen is connected with the microcomputer. In the replacement process, only the required impact head needs to be selected for direct connection, and a corresponding program can be found by the microcomputer according to the read information of the variety of the impact head and the like for automatic execution. The occurrence of an error because of manual selection is prevented, the time and the energy are saved for a physician using the treating head, and the working efficiency is greatly enhanced.

The present invention provides a pedestrian path matching method based on the alignment of feature points of geomagnetic field intensity sequences. Align the two sequences at the position, and then align the other feature points with the group of feature points as the benchmark; after alignment, the lengths of the two sequences are unified through linear interpolation, and two new sets of sequences are obtained; 2. Calculate the two new sequences Correlation coefficient; 3. Repeat the above process to obtain the maximum correlation coefficient of the two sequences; 4. Set the similarity threshold, and the two sequences with the maximum correlation coefficient greater than the threshold are judged to be the data of the same road section, and their relative positions are determined by the two sequences after alignment. The relative position of the starting point of the group sequence is determined. The invention realizes the scale unification of the geomagnetic sequence by identifying the characteristic points in the magnetic field sequence, and then realizes the accurate matching of the geomagnetic sequence in the same space.

The invention relates to the technical field of bridge drainage and particularly relates to a drainage device of an expansion joint and the bridge expansion joint. The drainage device of the expansionjoint comprises a drainage groove pre-buried in one side of a lower portion of a gap of the expansion joint, and a flow guide structure which is pre-buried in the other opposite side below the gap ofthe expansion joint, wherein one end of the flow guide structure extends into the drainage groove, and the extension length of the flow guide structure is not smaller than the maximum expansion distance of the gap of the expansion joint. The drainage device of the expansion joint and the bridge expansion joint are thorough in drainage.

The invention relates to a high-vacuum multi-layer heat-insulating deep-cooling double-shell spherical storage tank, which comprises an outer spherical tank and an inner spherical tank, wherein the inner spherical tank is placed in the outer spherical tank; the inner spherical tank is supported in the outer spherical tank through an upper fixed supporting member which is arranged on the upper part of the inner spherical tank and a lower fixed supporting member which is arranged on the lower part of the inner spherical tank; a laminated inner supporting member is arranged between the inner spherical tank and the outer spherical tank; a heat-insulating material is coated on an outer surface of the inner spherical tank; a reinforcing plate is arranged on the outer surface of the outer spherical tank; the reinforcing plate is welded with an upper supporting column through an equator tangential structure; the upper supporting column is fixedly connected with a lower supporting column through the heat-insulating material; and a pulling rod is connected between the upper supporting column and the lower supporting column. By adoption of a mixed spherical shell structure, the supporting columns are welded on the reinforcing plate on the outer surface of the outer spherical tank through the equator tangential structure, so the carrying capacity of the supporting columns is ensured; and a high-vacuum multi-layer heat-insulating cold-insulating structure is adopted between the inner spherical tank and the outer spherical tank, and the inner supporting member has a laminated supportingstructure, so the problem of telescoping of the supporting member caused by temperature change is solved, and the light weight of the storage tank and volume maximization are realized.

The invention provides an ultrahigh-voltage direct-current sleeve joint. The ultrahigh-voltage direct-current sleeve joint comprises a conducting pipe as well as an epoxy pipe and a supporting cover plate which are arranged coaxially relative to the conducting pipe, wherein the supporting cover plate is provided with a through hole which is vertical to the axial direction of the supporting cover plate and coaxial with the conducting pipe and the epoxy pipe; the conducting pipe passes through the through hole and is connected with a top cover plate; a part, surrounded between the supporting cover plate and the top cover plate, of the conducting pipe is provided with a corrugated pipe which is positioned at the upper end of the supporting cover plate and connected with the supporting cover plate and the top cover plate. Compared with the prior art, the ultrahigh-voltage direct-current sleeve joint disclosed by the invention has the advantages of solving the problem of extension and contraction of the conducting pipe by enabling the corrugated pipe to extend and contract correspondingly along with the extension and contraction of the conducting pipe, solving the problem of metal friction caused by hard connection between parts, improving the sealing reliability, guaranteeing good leakproofness of a sleeve chamber body, improving the problem of easy loosening caused by own gravity of the parts, simplifying the installation process of the conducing pipe and lowering the time cost.

The invention provides a descaling agent, a preparation method thereof, a descaling device and a dish-washing machine. The organic acid, the cellulose ether and the slow-release agent in the descalingagent are matched with one another, so that the descaling agent has excellent water softening capacity and good slow-release performance, the descaling capacity of the descaling agent can be kept fora long time, and the descaling agent is suitable for softening and descaling flowing water; the descaling device comprises a storage unit used for containing a descaling agent, and a plurality of filter holes used for allowing the descaling agent to pass through are formed in the storage unit. The descaling device is arranged on the inner side of an opening-closing door of the dish-washing machine. In the washing process, the descaling agent is slowly dissolved and released through washing of water in the dish washing machine, and the descaling agent is discharged into the water from filter holes of the descaling device; organic acid in the descaling agent is gradually released, so that water softening and incrustation removing are achieved, and finally the problem that incrustation is generated in the long-term use process of the dish-washing machine is solved.

The invention provides an anti-falling device and a transport cart with the same. The anti-falling device is used for preventing a hydraulic cylinder on the transport cart from falling off. The anti-falling device comprises an anti-falling plate, the anti-falling plate is movably arranged relative to the hydraulic cylinder, and the anti-falling plate has an avoiding position and a stopping position, wherein when the anti-falling plate is located at the stop position, the anti-falling plate at least partially moves to the bottom of the hydraulic cylinder so as to stop the hydraulic cylinder from extending downwards or falling, and when the anti-falling plate is located at the receding position, the anti-falling plate moves away from the hydraulic cylinder. The anti-falling device solves theproblem that in the prior art, a hydraulic cylinder of a piggyback transport vehicle is prone to falling in the running process.

The invention discloses a lifting bracket of an insecticidal lamp, and belongs to the technical field of agricultural deinsectization. The lifting bracket comprises a bracket, an accumulator box and an insect collection and trapping device, wherein the accumulator box is arranged at the upper end of the bracket; the insect collection and trapping device is arranged on the bracket and comprises an insect trapping part, an insect collection part and a movable bracket part; the movable bracket part is provided with an insect collection part and an insect trapping part and moves up and down to adapt to the height of plants, so that the working efficiency of the insect collection and trapping device is in an optimal state. By using the scheme, high structural strength of the lifting bracket of the insecticidal lamp is realized, an accumulator at the top end of the bracket can be excellently supported, bad weather can be resisted, and the problem of electric wire arrangement of the entire bracket is solved.