255results about How to "Easy to make and install" patented technology

The invention relates to modular construction technology for a steel structure, which comprises the following steps: firstly, precisely processing members used by the steel structure in a workshop; secondly, assembling the members into modular assembly units; and thirdly, performing on-scene integral hoisting on the assembled units after assembly by a lifting device, wherein the process of assembling the members into the modular assembly units is completed on the spot, and the process of assembling the on-scene members into the modular assembly units is completed on a group of assembly jigs; and each assembly jig consists of a group of H-shaped steels which are perpendicular to the members and horizontally placed on the ground. The modular construction technology for the steel structure utilizes mature modern large-scale hoisting technology and adopts a modular assembly mode to well solve the problems, is safe and reliable, has high assembly speed, saves machines and tools, is easy to control structural parameters of a size deviation scattering frame, avoids the danger of long-term aloft work, and is ideal novel technology for manufacturing and assembling a large-scale steel structure frame.

The invention relates to a sectional steel plate shear wall which has no cementation and can prevent the flection and belongs to the technical field of the constructional engineering. The invention is characterized in that: the shear wall consists of an internally-embedded steel plate unit, an external limiting unit and a boundary member; the external limiting unit consists of a plurality of sectional concrete covers and reinforcing ribs made of formed steel; the boundary member consists of an edge pillar and an edge beam; A vertical reinforcing rib made of formed steel and a transverse reinforcing rib made of formed steel are arranged between the sections. The internally-embedded steel plate and the concrete covers in each section are connected by a bolt which can penetrate The internally-embedded steel plate and the concrete covers or a prestressed bolt; the internally-embedded steel plate and the vertical reinforcing rib made of formed steel as well as the transverse reinforcing rib made of formed steel are connected by the bolt or the prestressed bolt. The steel plate shear wall provided by the invention is a novel member to resist the side force for the steel structure or other structure of the high-rise building, and is characterized by good earthquake-resistant performance, high ductility, plumb energy-saving hysteresis loop, easy construction and so on and is an excellent shock-resistant and energy-consuming member.

The invention discloses a device for jointing dust removing air pipes of a movable discharging carriage, which comprises a fixed jointing pipe fixed on a main air pipe in a factory, and a movable jointing pipe arranged on the movable discharging carriage. The jointing ends of at least one of the two kinds of jointing pipes are provided with elastic flexible sections, and the two kinds of jointing pipes are mutually pressed and closely contacted through the elastic flexible sections when the two kinds of jointing pipes are jointed. The device has the advantages of simple structure, capability of avoiding jointing gaps, no air drafting pressure loss, good dust removing effects, and improvement on operational environment of workers. The invention also discloses a dust removing system of the movable discharging carriage, and the system is provided with the device for jointing the dust removing air pipes of the movable discharging carriage. The invention also discloses a method for jointing the dust removing air pipes of the movable discharging carriage. According to the method, the jointing is realized by using the device for jointing the dust removing air pipes of the movable discharging carriage, the movable discharging carriage drives to a discharging point during jointing, and the movable jointing pipe and the fixed jointing pipe are mutually pressed so as to form sealing by using elasticity of the elastic flexible sections.

The invention discloses an assembly type energy consumption beam column node, comprising a cantilever convex section, a beam end concave opening, a rubber cushion block, and a bolt connecting pair which are welded to the column; the cantilever convex section, the beam end concave opening, and the rubber cushion block are connected to be one body through the bolt connecting pair; the cantilever convex section consists of an upper wing edge, a lower wing edge, a web plate, an end plate, and a friction element bonded to the upper surface of the upper wing edge and the lower surface of the lower wing edge; the upper wing edge, the lower wing edge, and the web plate are formed to be a transverse-H shaped section; circular bolt holes are arranged on the upper wing edge, the lower wing edge and the end plate; the beam end concave opening consists of an upper overhanging wing edge, a lower overhanging wing edge, and a bottom plate of the transverse-H shaped section beam; waist bolt holes are formed on the upper overhanging wing edge and the lower overhanging wing edge, and the circular bolt hole is formed on the bottom plate. The assembly type energy consumption beam column node can automatically reset and slip in earthquake or fire disaster, so ass to realize the reciprocating friction and energy consumption, guarantee that node has stable and high-efficient energy consumption ability in the whole disaster process, avoid brittle failure of the rigid node, and thereby reducing the repair cost after disaster.

The invention relates to a method and a device for measuring the thickness of a continuous casting shell. Shoot nails are centralized on a set position by using at least two continuously arranged shoot nail guns, accurately calculating and controlling the shooting time every time so as to accurately measure the thickness of the casting shell at any time after analysis. The invention has the advantages of high measurement precision, simple and convenient operation, simple structure, convenient production, reasonable design in the measurement method and accurate analysis result. The thickness of a condensed casting shell of an actual casting blank can be followed and measured, and the measurement result provides sufficient basis for casting process personnel to analyze the production and the quality. The invention is particularly suitable for measuring the thickness of the casting shell of an arc-shaped continuous casting machine.

The invention provides a translational start-stop plane gate system for a ship lock, which comprises plane gates 1, translational start-stop devices 2, gate grooves 3 and common gate grooves 4, wherein each plane gate 1 is in a common plane gate structure, and consists of a panel 52, a plurality of horizontal main beams 49, a plurality of horizontal secondary beams 48, two edge columns 51 and a plurality of longitudinal beams 50; each translational start-stop device 2 can be self-walking, consists of a power source 5, a transmission shaft 7, elastic couplers 8, a driving wheel 9, a reducer 10, rollers 11, an underwater rail 12, gate limiting devices 13, an elastic anti-collision device 14 and a power source control system 15, and is fixedly mounted at the bottom of each gate 1; the power sources 5 transmit a torque to the driving wheels 9 through the transmission shafts 7, the couplers 8 and the reducers 10, so that the driving wheels 9 roll on the rails 12, the rollers 11 roll on the underwater rails 12 with the driving wheels 9 together, and the plane gates 1 are driven to move horizontally to achieve start and stop of gates; and start and stop motion of the gates is along horizontal straight lines of the rails.

A simple and safe shaftless support hydraulic system with overload protection comprises a motor, a high-pressure pump and an oil tank, wherein a filter gauze is arranged between the oil tank and the high-pressure pump; the high-pressure pump is connected with a master one-way valve which is connected with an overflow valve, a master pressure reducing valve, a lifting three-position four-way electromagnetic directional valve and a pressure gauge; the lifting three-position four-way electromagnetic directional valve is connected with a lifting hydraulic control one-way valve which is connected with a lifting pressure reducing valve; the lifting pressure reducing valve is connected with a lifting throttle valve which is connected with a lifting oil cylinder; the master pressure reducing valve is connected with the pressure gauge and a clamping three-position four-way electromagnetic directional valve which is connected with a clamping hydraulic control one-way valve; the clamping hydraulic control one-way valve is connected with two two-position four-way electromagnetic directional valves and a clamping oil cylinder with the valves connected with the clamping oil cylinder; moreover, the two two-position four-way electromagnetic directional valves are connected with each other through a clamping throttle valve.

The present invention provides a guide film and an LED display screen with the application of the guide film. The guide film comprises a transparent substrate layer and a microstructure layer which is arranged the light out surface of the transparent substrate layer and comprises a plurality of microstructures used for transmitting the incident light which goes through the transparent substrate layer to a particular direction or particular angle, thus the emergent angle of the light of the LED display screen with the application of the guide film can be adjusted, the emergent light is irradiated to a below area as much as possible, and the viewing comfort and brightness of a viewer are improved. Since only the light out surface of the LED of the LED display screen provided by the invention is equipped with the guide film, the fabrication and installation process is relatively simple, and the guide film is suitable for an LED which is subjected to secondary light distribution and an SMD type LED.

The invention discloses a novel ignition temperature measuring device for experiment, aiming at providing an ignition device which ignites fuel only by using heat generated by an ignition wire. The device disclosed by the invention comprises an ignition wire, an ignition power source and an ignition platform. A first ignition hole, a second ignition hole, a first temperature measuring hole and a second temperature measuring hole are arranged on the ignition platform. An ignition temperature measuring cylinder is arranged on a bracket above the center of the ignition platform and is provided with a small hole and a thermocouple, and the thermocouple is connected with a thermometer through the first temperature measuring hole and the second temperature measuring hole on the ignition platform via a lead wire. The ignition wire is arranged above the ignition temperature measuring cylinder, two ends of the ignition wire are fixed at a first ignition column and a second ignition column which are externally sleeved with a bracket, a pressure spring and a fastening rotary sheet respectively. The first ignition column and the second ignition column are fixed on the ignition platform and are connected with the ignition power source respectively through the first ignition hole and the second ignition hole on the ignition platform, and the ignition power source is formed in such a manner that a plug, a power-off protector and a contact type voltage regulator are connected via the lead wire. The device disclosed by the invention is mainly used for fuel ignition and temperature measurement during fuel combustion in a laboratory.

The invention discloses an automobile brake pedal structure with an adjustable lever ratio. The automobile brake pedal structure comprises a brake pedal arm, a push rod of a vacuum booster and a brake pedal main support. A pedal pad is arranged at the lower end of the brake pedal arm,, the upper end of the brake pedal arm is connected with the brake pedal main support by a rotary shaft, the brake pedal arm is connected with the vacuum booster on an automobile body by the push rod of the vacuum booster, holes are formed in the brake pedal arm and the brake pedal main support, and the rotary shaft and the holes are connected with one another in such a manner that the rotary shaft and the holes can be repositioned relatively. The automobile brake pedal structure has the advantages that the rotary shaft can be repositioned in the brake pedal main support and the brake pedal arm, so that the lever ratio can be adjusted, different lever ratio requirements of different automobile types can be met, the brake pedal structure is rarely modified, is simple and is convenient to manufacture and mount and low in cost, universality of the brake pedal structure can be facilitated, the development cycle can be shortened, and the development cost can be reduced.

The invention belongs to the vehicle driving monitoring technical field and relates to an image pickup device for vehicle driving image acquisition. The image pickup device includes a box body and a camera; a camera mounting cavity is formed in the box body; the camera is mounted in the mounting cavity through a mounting bracket; a camera light shielding cavity communicated with the outside of the box body is formed at the front part of the box body; two sides of the light shielding cavity are attached surfaces; the box body comprises a rear cover and a front cover which are buckled to each other; the camera mounting cavity is formed at the upper part of the box body; the middle of the front cover is recessed inwards so as to form the camera light shielding cavity communicated with the outside of the box body; two sides of the front cover are attached surfaces; and the light shielding cavity is communicated with the mounting cavity. Since the camera is enclosed in the light shielding cavity, no matter how light inside and outside a vehicle changes, interference images will not appear on windshield glass corresponding to the light shielding cavity, and therefore, the camera in the light shielding cavity will not be affected, and the stability and authenticity of acquired images can be ensured.

The invention discloses a novel photovoltaic photo-thermal integrated assembly comprising photovoltaic cells, a U-shaped heat exchange tube assembly, and vacuum glass tubes. Photovoltaic cells arranged at multiple rows are arranged at intervals. The U-shaped heat exchange tube assembly that is provided with a heat absorption medium inlet and a heat absorption medium outlet and is arranged below the photovoltaic cells contains a plurality of U-shaped heat exchange tubes that are connected in parallel and or in series. Multiple vacuum glass tubes are arranged below the photovoltaic cells and each glass tube is located between the gap between each two adjacent rows of photovoltaic cells; and the U-shaped heat exchange tube arranged below the gap between each two adjacent rows of photovoltaic cells is arranged in the vacuum glass tube. According to the novel photovoltaic photo-thermal integrated assembly, the solar radiation energy is absorbed by the photovoltaic cells and the vacuum glass tubes arranged in the gaps of the photovoltaic cells simultaneously, thereby improving the solar utilization rate.

The invention belongs to engineering structure damping devices, and particularly relates to an adjustable viscous damper. The adjustable viscous damper is technically characterized by comprising a cylinder body and a piston rod, wherein the piston rod comprises an inner piston rod and an outer piston rod, the inner piston rod is mounted in the outer piston rod, symmetric internal damping holes are formed in the wall of a round hole in the lower end of the inner piston rod, and symmetric outer damping holes are formed in the corresponding position of the hole wall of the outer piston rod; an external thread is formed in the upper part of the inner piston rod, an adjusting nut is arranged in the corresponding position of the outer piston rod, the outer piston rod is controlled to longitudinally move relative to the inner piston rod by rotating the adjusting bolt, so that the outer damping holes and the inner damping holes are mutually aligned or staggered. During a use process, the adjustable viscous damper can adjust damping to adapt to different structures and loads, thereby effectively restraining structural vibration response.

The invention relates to a precision optical frequency tunable laser. The laser includes: a laser gain medium, an intracavity collimating lens, an active optical phase modulator, a tunable acousto-optic filter and an intracavity total reflection mirror all arranged sequentially in a laser cavity, and the tunable laser further includes an active polarization rotator, a polarization beam splitter, two etalons, a temperature control system attached to the etalons, two total reflection mirrors, a radio frequency signal source, a laser pumping source, an active optical phase modulator drive source, an active polarization rotator drive source and a laser drive control circuit. Through the temperature control system attached to the etalons, stable laser output and the precision optical frequency tuning less than 1 GHz within a wide spectrum range can be realized, thereby greatly reducing the bandwidth requirements in achieving narrowband filtering for the tunable acousto-optic filter. The invention is compact with high performance, low cost for volume production and installation, and achieves stable tunable laser output within a wide spectrum range.

The invention provides a fan-shaped supporting rotating amplifying type joint shearing damper and belongs to the technical field of civil engineering. Relatively small displacement produced at a beam-column joint or between structure layers of a building structure under the effect of an outer load is amplified according to the requirement, by limiting the amplified displacement, the energy consumption characteristic of a viscoelastic material in the damper is given to full play, and the more ideal energy consumption effect is achieved. When the building structure drives a side plate to rotate, accordingly fan-shaped supporting plates rotate relatively, under driving of bolts, a rotating plate rotates, and then a viscoelastic gasket is driven to produce shear deformation to consume energy. The amplification times of the rotating angle can be adjusted according to the actual situation of the building structure or a building member, mounting is easy, and the fan-shaped supporting rotating amplifying type joint shearing damper is a flexible and efficient energy consumption element.

A high heat preservation ETFE membrane structure comprises an ETFE membrane layer of a periphery fixed pulling cable, and a metal section clamp of a clamping pulling cable, which is assembled inside a chamber formed by a metal section component. The invention has the technical key points that: the ETFE membrane layer is composed of an outer layer membrane, a middle layer membrane and an inner layer membrane; at least two charging chambers are formed among all the layer membranes; a charging connector and a perforation gas nipple which are fixed on the layer membrane wall of all the charging chambers respectively utilize an air hose to be connected with a corresponding inflation system. The invention has simple structure and easy fabrication and installation, and effectively solves the problems of the poor insulating performance and the difficult charging of a plurality of chambers of the prior single cavity body membrane material, thereby not only improving the insulating performance of the membrane structure, but also ensuring the initial design effect of the architecture.

The invention discloses an overhead pipeline paint spraying walking device and an overhead pipeline paint spraying method. The overhead pipeline paint spraying walking device comprises an annular support, walking assemblies, limiting assemblies and spraying assemblies. The annular support is provided with an opening used for passing of a pipe bracket of an overhead pipeline. The walking assembliesare arranged on the inner side of the annular support and used for walking on the outer wall of the pipeline. The limiting assemblies are arranged on the inner side of the annular support and used for conducting limiting so that the annular support can move in the axial direction relative to the pipeline but cannot slide along the circumference of the pipeline. The spraying assemblies are connected with the annular support and used for conducting spraying on the pipeline. By means of the overhead pipeline paint spraying walking device and the overhead pipeline paint spraying method, aloft work of operators is effectively reduced, building of temporary facilities is reduced, safety is improved, manufacture and installation are convenient and rapid, and the spraying efficiency is high; thebottom faces of magnets are each in an arc shape matched with the outer wall of the pipeline, the attraction area is enlarged, and the pipeline attraction force is improved; and the annular support isformed by multiple connected arc-shaped plates together so that the overhead pipeline paint spraying walking device and the overhead pipeline paint spraying method can adapt to different diameters ofpipelines, and the application range is widened.

The invention belongs to the technical field of smoke denitration (namely NOx removal), and relates to a modular selective catalytic reduction (SCR) denitration rectification grating device, which is characterized in that longitudinal gratings and transverse gratings of rectification modules are in crossed connection mutually to be fixed and have a grid-shaped structure in which a plurality of hollow thin-wall pipes are arranged and connected regularly and mutually, and the axial directions of the hollow thin-wall pipes are consistent with the height directions of the rectification modules; asealing element is divided into an internal sealing element and an external sealing element; the internal sealing element is positioned in gaps among the rectification modules; and the external sealing element is positioned between the rectification modules and the inner wall of an SCR reactor. The invention has the advantages that after smoke passes through the modular SCR denitration rectification grating device, the flow direction and flow speed distribution of the smoke mingled with dust achieve an ideal effect; meanwhile, the dust in the smoke cannot be accumulated on the rectification grating device; and the rectification grating device is easy to manufacture and low in comprehensive investment cost, and is not needed to be overhauled or maintained, the cost of materials is low, andthe flow field performance of the smoke is improved, so the NOx removal performance of the system is improved.

The invention discloses a horizontal type frostless refrigerator and a control method thereof, and relates to the technical field of refrigeration equipment. The horizontal type frostless refrigeratorcomprises a refrigerator box body, a refrigeration assembly including a fin evaporator, a fan set, a compressor and a fan cover is arranged in the refrigerator box body, the fan set comprises a firstfan fixedly arranged in a cavity in the fan cover and second fans which are fixedly arranged on the inner wall of the a refrigerator door and the other two inner side walls of the refrigerator box body, a first temperature sensor is arranged on the inner side wall, opposite to the mounting face of the fin evaporator, in the refrigerator box body, and a second temperature sensor is arranged on thefin evaporator. The fans are used for reinforcing turbulent flow in the refrigerator, the cold amount can be transmitted to the side, away from the evaporator, of the refrigerator, the temperature uniformity is improved, through primary judgment whether objects stacked in the refrigerator are too many or not, all the fans are started according to needs, the temperature uniformity is improved, theair flue structure in a foaming layer is removed, and mounting and manufacturing are facilitated.

The invention discloses a reusable assembled mixing station storage silo partition wall. The reusable assembled mixing station storage silo partition wall comprises the concrete base of the partition wall and a plurality of H-shaped steel upright columns embedded in the concrete base; the H-shaped steel upright columns are arranged on the partition wall in the length direction at intervals; inverted U-shaped steel plate caps are locked to the top ends of the H-shaped steel upright columns; corrugated steel sheets are fixedly arranged on the two side surfaces of the plurality of H-shaped steel upright columns to form the inner and outer side surfaces of the partition wall. The reusable assembled mixing station storage silo partition wall can be reused after being manufactured once, and has the characteristics of safety, high efficiency, easy operation, low cost, high quality, going green and environmental protection and the like.

The invention relates to a central air supply, heat dissipation and noise reduction system for a motor group. The central air supply, heat dissipation and noise reduction system for the motor group comprises motors, noise reduction rooms, draught fans and air pipes, wherein the noise reduction rooms are arranged in a factory or each workshop, the draught fans which are used for centrally supplying air are installed in the noise reduction rooms, the wall, corresponding to an air outlet of each draught fan, of each noise reduction room is provided with a ventilation opening, the ventilation opening is communicated with a main air pipe arranged on a support in a suspended mode, a plurality of branch air pipes are distributed and arranged on the main air pipe, and the air outlet of each branch air pipe is communicated with the air inlet formed in each fan housing of the motor respectively. The central air supply, heat dissipation and noise reduction system for the motor group has the advantages of being suitable for the central air supply, heat dissipation and noise reduction for the motor group, capable of effectively improving the cooling and heat dissipation effects of the motor, obvious in noise reduction effect, and capable of enabling the noise of the motor group in operation to be meet the requirement of being less than or equal to 85dB (A). The utilized air pipes are all flexible air pipes which are made of fiber fabric to supply the air, the cost is greatly lowered, the air supply effect can be fully met, and the energy-saving effect is remarkable.

The invention relates to a device for adjusting the breadth of weaving machine comber boards. The device comprises comber board frames which are oppositely mounted at intervals; the upper part of each comber board frame is provided with a Z-shaped board; the top of each Z-shaped board is provided with a panel through fasteners; a notch is formed between the panel and the Z-shaped board, and the interiors of the notches are provided at intervals with a plurality of comber boards which are parallelly arranged at intervals; two ends of each of the comber boards are respectively fixed in the notches by fasteners, and are each provided with a threaded hole; rotating shafts pass through the threaded holes, the outer circumferential face of each rotating shaft is provided with an external thread, and the head part of each rotating shaft is provided with a handwheel. The device has the advantages of compact and reasonable structure, and convenient manufacture and installation, adjusts the breadth through adjusting the distances between the plurality of comber boards, is practical, flexible and convenient, allows the operation to be accomplished by rotating the handwheels, has the advantages of convenient adjustment, low manufacturing cost and good reliability, has no limitation in weaving machine processing, and improves the production efficiency.

The invention discloses a cable clamping device of an electric power circuit fault indicator. The device comprises a base, two vertical columns, two magnetic conduction plates capable of opening and closing and a resetting mechanism, wherein the vertical columns are oppositely arranged on the two sides of the base; the resetting mechanism is used for driving the magnetic conduction plates to be closed and pressed against each other; and a cable pressing device for pressing a working cable is arranged on the base. The device is characterized in that: the base is an integrated integral type base; the vertical columns are fixedly arranged on the two sides of the base; the magnetic conduction plates are arc-shaped panels; the lower end parts of the two magnetic conduction plates are fixedly connected with a pivoting seat respectively; pivoting seats are hinged on the base; the magnetic conduction plates are rotatably arranged on the corresponding part of the base through corresponding pivoting seats; the lower end part of each magnetic conduction plate is fixedly connected with one pivoting seat; two pairs of lug plates which are integrated with the base are correspondingly arranged on the two sides of the base; a pin shaft is inserted into the space between every two lug plates; and the pin shaft between the two lug plates are rotatably inserted into the pivoting seat. The lower ends of the magnetic conduction plates which are made of expensive materials are not required to be molded with pin seats, so that a large number of magnetic conduction materials are saved, and the cost is reduced; and the base is integrated, so that the device has high structural integrity and a reasonable design and is easy to mount and manufacture.

The invention relates to the field of building structures. The technical problem to be solved of the invention is to overcome the defects in the prior art and provide a novel combined net support structure, which is used for fulfilling the aims of simple design computation, convenience for construction, high waterproofness, capability of bearing high loads and the like. The combined net support structure comprises a net support upper chord, a lower chord and a web member, wherein the upper end of the web member is connected with the lower side of the upper chord; and the lower end of the web member is connected with the lower chord. Improvements are that: the upper chord comprises an integral concrete plate and a steel structural beam; the steel structural beam is embedded into the integral concrete plate, and is at least partially arranged on the outer side of the lower surface of the integral concrete plate; and the lower chord and the web member have steel structures, and are connected with the lower side of the integral concrete plate through hollow ball gaps.

The invention discloses an efficient weighing-type liquid filling machine. The efficient weighing-type liquid filling machine comprises a raw material barrel, a plurality of liquid distributing barrels, weighing devices, filling nozzles, bottom transferring mechanisms and a support. The raw material barrel is fixed the ground in a supported mode through the support, and the liquid distributing barrels are evenly arranged on the lower portion of the raw material barrel; the liquid distributing barrels communicate with the raw material barrel through liquid conveying pipes, and electromagnetic valves are arranged on the liquid conveying pipes; the weighing devices are arranged on the lower portions of the liquid distributing barrels and are fixed to the middle of the support through a supporting plate; the lower portions of the weighing devices are provided with weight sensors, the filling nozzles are arranged on the lower portions of the liquid distributing barrels and communicate with the liquid distributing barrels, and discharging ports of the liquid distributing barrels are provided with control valves; and the bottom transferring mechanisms are arranged under the filling nozzles and can transfer filling barrels arranged above the bottom transferring mechanisms to the tail discharging end. According to the efficient weighing-type liquid filling machine, the process of liquid filling by weight is effectively achieved, the filling efficiency is high, the accuracy is high, the automation degree is high, the artificial intensity is relieved, and the practicability is achieved.

The invention discloses a self-vibration attenuation cable, which comprises a cable body and a Haver sheath arranged on the outer layer of the cable body, wherein an isolation layer is arranged between the cable body and the Haver sheath positioned on the outer layer of the cable body; the isolation layer comprises damping rubber, a viscoelastic body, slow condensation material or a mixed body of the above three materials; the isolation layer is directly distributed on the length of the whole cable or is distributed on the cable in the fixed point by a positioning groove arranged on the inner wall of the Haver sheath; a damping rubber block installed on the inner wall of the Haver sheath is in a semicircular structure; the back of the damping rubber block is provided with a boss; the boss and the positioning groove are in cooperative installation; and the outer surface of the Haver sheath is provided with a plurality of pits, is provided with a double-spiral rib or is simultaneously provided with a plurality of pits or wound with the double-spiral rib. The cable body and the Haver sheath self-vibration attenuation cable on the outer layer of the self-vibration attenuation cable have the advantages of good durability and vibration attenuation function, the influence on resisting rain-wind induced vibration by the cable can be improved, and the anti-fatigue service life of the cable body is prolonged. The manufacture method of the self-vibration attenuation cable is simple and convenient.

A wall decoration plate used for an outer wall and an indoor background wall is pasted to a wall through an adhesive layer. The wall decoration plate is characterized in that the wall decoration plate comprises a base plate made of a magnesium oxide board, at least one face decoration layer is compounded on the upper surface of the base plate, the composite face of the face decoration plate is a smooth face or a rough face the same as the composite face of the base plate, and a composite adhesive layer is formed between the two composite faces. The wall decoration plate has the advantages of being simple in structure, convenient to manufacture, install and use, good in decoration effect, good in heat preservation, fire prevention and water prevention effect, and the like.

The invention provides a suspended type foundation pit drainage system and a using method thereof. The suspended type foundation pit drainage system comprises a fixed supporting frame, a drainage assembly and a water pump, wherein the fixed supporting frame is arranged on the side wall of a foundation pit; the drainage assembly arranged on the fixed supporting frame, one end of the drainage assembly extends into water in the foundation pit, and the other end of the drainage assembly is connected to an earth surface drainage trench; and the water pump is connected with the drainage assembly, and by means of the water pump, the water in the foundation pit is drained into the earth surface drainage trench through the drainage assembly. According to the suspended type foundation pit drainage system, the drainage assembly of which one end extends into the water in the foundation pit can touch the bottom of the foundation pit as much as possible, so that the water in the foundation pit can be rapidly and effectively drained out of the foundation pit, and accordingly the safety of the side wall of the foundation pit is improved.