268results about How to "Easy to install and operate" patented technology

The invention discloses a pneumatic propulsion device of a welding fixture positioning pin for an automobile body, comprising the positioning pin. The pneumatic propulsion device is characterized by consisting of a driving part and a positioning part, wherein the driving part is fixed on a clamp body; a gas source is input from the input end of the driving part; the out end of the driving part is connected with the welding fixture positioning pin for the automobile body; and the positioning part is fixedly arranged on the driving part. The work method of the pneumatic propulsion device comprises the following steps of: arranging the positioning pin on a front-end guide rod of an air cylinder driving rod of the air cylinder; arranging a stamping part for installing the positioning pin on a corresponding clamp; connecting the gas source to push out the air cylinder driving rod and allowing the positioning pin to penetrate into a preserved positioning hole in the stamping part; and finishing the accurate positioning of the positioning pin on the stamping part in the welding process of the automobile body. The pneumatic propulsion device has the advantages of small size, simple work flow, stable work state, convenience for installation and operation and capable of positioning the positioning pin on the stamping part accurately; and with low construction cost of the device, the cost of the production flow can be greatly reduced.

The invention provides a binocular shooting fire detecting and positioning device and a fire positioning method thereof. The binocular shooting fire detecting and positioning device consists of a binocular shooting unit, a binocular vertical angle adjusting device and a binocular horizontal angle adjusting device, wherein the binocular shooting unit comprises a transparent protective shell, and two cameras, a monocular translational adjusting device, a monocular horizontal angle adjusting device and an infrared distance measuring device which are arranged in the transparent protective shell. The fire positioning method based on the binocular shooting fire detecting and positioning device comprises fire detection, base line blind area detection, finding of fire source root, active focusing, acquisition of the deflection angle of a monocular camera, self-adaptive adjustment, acquisition of the deflection included angle and camera distance of the binocular shooting unit, computation of the three-dimensional coordinates of a fire source and sending of a fire extinguishing command. In the binocular shooting fire detecting and positioning device, a video fire detection function and an image type fire positioning function are integrated, so that fire can be positioned accurately and conveniently; and the binocular shooting fire detecting and positioning device is easy to install and operate. Due to the adoption of a self-adaptive adjustment design, the requirement of positioning accuracy at any place is met.

The invention discloses a self-propelling camellia oleifera fruit-picking machine. As shown in diagram 1, the self-propelling camellia oleifera fruit-picking machine comprises a chassis, chassis outriggers and a chassis driving system for driving the chassis to move. The chassis driving system adopts caterpillar tracks in order to be adapted to the complex terrain of a camellia oleifera forest. A picking arm is mounted on the chassis, and a vibrating picking head is mounted on the picking arm. The picking arm is a spatial open chain link mechanism, has six degrees of freedom, and is driven by a hydraulic system. The self-propelling camellia oleifera fruit-picking machine is convenient to operate, is highly adaptable to picking environments, and can meet the requirement of a picking space, the working efficiency is high, the coordination between the mechanisms is good, particularly, because electrohydraulic integrated control is adopted, the degree of integration is high, and the self-propelling camellia oleifera fruit-picking machine is convenient to control. The self-propelling camellia oleifera fruit-picking machine is highly practical, can provide technical support for the popularization of the growth of camellia oleifera fruits, and can substitute for manual picking.

A tubular column for separated layer water injection comprises a subsurface safety valve, an exhaust valve, a multi-tube traverse packer, a hydraulic-control pipeline, hydraulic-control packers, sliding sleeve type water nozzles, a backwashing valve, a suspension packer, a sand-prevention bushing, sand filtering tubes and interlayer packers. An oil tube is sequentially connected with the subsurface safety valve, the multi-tube traverse packer, the corresponding hydraulic-control packer, the corresponding sliding sleeve type water nozzle, the corresponding hydraulic-control packer, the corresponding sliding sleeve type water nozzle, the corresponding hydraulic-control packer, the corresponding sliding sleeve type water nozzle, the backwashing valve and a guide connector. The sand-prevention bushing is installed outside the oil tube in a connected mode. The suspension packer, the corresponding sand filtering tube, the corresponding interlayer packer, the corresponding sand filtering tube, the corresponding interlayer packer, the corresponding sand filtering tube and a plug are sequentially installed on the sand-prevention bushing in a connected mode, and a bushing is arranged on the outmost part. The exhaust valve is installed on the multi-tube traverse packer in a connected mode, the hydraulic-control pipeline is installed on the exhaust valve for control, the hydraulic-control packers are traversed, connected and controlled through the same hydraulic-control pipeline, the sliding sleeve type water nozzles are connected through the hydraulic-control pipeline for control, and the subsurface safety valve is connected with the hydraulic-control pipeline for control.

The present invention discloses a shafting dynamic balance experiment table which comprises a base and an electric motor whereon, a rotor, a coupling, a bearing base, a sensor base and a weighting disc installed on the rotor, the invention is characterized in that the bearing base and sensor base and three locating surfaces on the base frames are provided with corresponding matching surfaces in order to guarantee the radial matching among the bearing base and the sensor base and base frame, the shafting dynamic balancing experimental table can analog the unbalanced constrained oscillation of the flexible rotor shafting, and effectively reproduce the unbalanced phenomenon generated by the large-scale rotating machinery, and the invention is used for the researching of the rotor dynamic balance and the method. The rotary spped of the experiment table, the shafting hardness, the style of the electric vortex sensor and the style of the coupling are all adjustable. The experiment table has the advantages of reasonable designing, convenient and accurate locating, small and beautiful external appearance, and the invention provides an effective and convenient experiment facility for vibration testing and balance researcher.

The invention discloses a large model testing device for simulating an asymmetric small-distance tunnel excavation process. The large model testing device comprises a model tank, a loading and controlsystem, an excavation simulation system and a data monitoring system; the outer wall of the model tank is spliced with steel structure loading plates; adjacent loading plates are connected to form awhole body through high-strength bolts and are externally provided with supports; the tank body can realize loading of the upper part and the side edges in three directions, and the pressure is provided through a hydraulic oil source system and a loading actuator; the upper part of the tank body is provided with a loading top beam, and the two side edges of the tank body are provided with counterforce walls respectively, so that the loading process is realized through multiple loading actuators and connecting rods; and sands are filled in the model tank as a stratum condition, and two internalair bag-support structures simulate an asymmetric small-interval tunnel. The large model testing device provided by the invention provides more comprehensive cognition to a surrounding rock pressurechange and a stratum deformation mechanism in the asymmetric small-interval tunnel excavation process by controlling the size of the loading force to simulate the excavation working conditions of thesmall-interval tunnel under the conditions with different burial depths and different lateral pressures.

The invention relates to the field of tower-type spotlight solar heat collection technology, spotlight solar energy photo-thermal power generation technology, and spotlight photovoltaic technology, in particular to a tower-type solar energy heliostat bevel gear passive automatic sun-chasing support. A gear base is arranged on the upper portion of the support, heliostats are arranged on both sides of the gear base. A reflection bevel gear, a transitional bevel gear, an incidence bevel gear, a reflection shaft and an incidence shaft are arranged on the upper portion of the gear base. The reflection bevel gear and the incidence bevel gear are co-axial and the reflection bevel gear, the incidence bevel gear and the transitional bevel gear are meshed. Axial directions of two bevel gears are perpendicular to an axial direction of the transitional bevel gear, the reflection bevel gear and the reflection shaft are mutually fixed, and the incidence bevel gear and the incidence shaft are mutually fixed. The silicon or spotlight solar panel is arranged on the incidence shaft, the photoelectric detector is arranged at the tail end of the incidence shaft, one end of the reflection shaft is connected with the main rotation reducer, and the other end of the reflection shaft is connected with a collimation calibration instrument. And a pitching driving structure one or a pitching driving structure two is arranged on the lower portion of the gear base.

The invention relates to the technical field of in-service rail flaw detection, and discloses an ultrasonic flaw detection device for the rail bottom of the rail parent material, which includes a trolley and a flaw detection structure. Rail wheels are arranged at the front and rear ends of the bottom of the trolley, and the rail wheels are supported and rolled by the trolley on the rail tread. The wheel also includes a clamping mechanism. The clamping mechanism is arranged on the beam at the bottom of the trolley and can be slid and adjusted longitudinally relative to the beam. The clamping mechanism includes a horizontal adjustment bolt, and the flaw detection structure is connected to the clamping In the lower part of the mechanism, the lateral adjustment bolt can adjust the lateral movement of the flaw detection structure. The invention has the advantages of convenient installation and operation, convenient adjustment, high efficiency, good effect, stable and reliable operation, and little external interference.

The present invention provides a side structure of an automotive body, which can restrain the cost and increase the freedom of appearance design. The automobile (1) comprises the following components:a side outside plate (4) which is provided with a lower part (41) of front support and a lower longitudinal beam part (42); and a front mudguard (3) which is equipped to the front side of the side outside plate (4). The side outside plate (4) is provided with an extension part (43) for extending the front end (42a) of the lower longitudinal beam part (42) to a wheel arc part (31), and a gap part(44) which is configured between the extension part (43) and the lower part (41) of front support. Furthermore, the upper edge (43a) of the extension part (43) and the lower line (51) of the automotive door are configured consistently. A front mudguard (3) causes a parting line (E) between the front mudguard and the lower longitudinal beam part (42) to be formed at the periphery of the lower line(51) of the automotive door. An installation part (32) passes through the inside of the extension part (43) from the parting line (E) and is configured for projecting downwards from the gap part (44).

The washing machine base is used for setting washing machine and supporting washing machine in certain height for the user to take and settle washed matter conveniently while preventing collapse of washing machine caused by vibration. The washing machine base of the present invention consists of following parts: base body to support the washing machine in certain height; and support parts capable of being screwed to the top of the base body for the support legs installed in the bottom of the washing machine to be inserted in. Therefore, the present invention makes it possible to install washing machine conveniently in certain height.

The invention discloses an injection type suction drilling tool for residual removal of a drilling center of a weak formation. The drilling tool comprises an air inlet pipe, a cutting removal pipe, a power head and a drill rod, wherein a cutting removal passage and an air inlet passage are formed in the drill rod; an injection type suction drill bit is arranged at the front end of the drill rod; cutting heads are arranged on the end part of the injection type suction drill bit; cutting inlets are formed in the top sidewall of the injection type suction drill bit; injection holes are formed in the inner sidewalls of the cutting heads; high-pressure injection passages are formed in the injection type suction drill bit. According to the drilling tool, a negative pressure area is formed in the cutting removal passage by jetting of the high-pressure injection passages in the cutting removal passage of the center, a suction effect on drilling cuttings is achieved by the cutting inlets, a stirring effect on the bottom of a borehole is achieved by air jets injected by the injection holes, and the drilling cuttings at the bottom of the borehole are driven to be transferred into the cutting holes, and are promoted to enter the cutting removal passage of the center through the cutting inlets, so that the problems of jamming of the drilling tool, burying of the drilling tool, difficulty in removal of the cuttings in the borehole and the like in an existing coal bed gas exhaust drilling process are solved, the drilling efficiency is greatly improved, and the drilling depth is greatly increased.

The invention discloses a sewage drainage energy-saving flash tank, which comprises a shell, a steam collector, a Laval tube and a heat exchanger. The steam collector, the Laval tube and the heat exchanger are assembled in the shell, the steam collector is located above the Laval tube, the heat exchanger is located in vapor phase and liquid phase region surrounding the steam collector and the Laval tube, an inner cavity of the shell is communicated with a boiler sewage inlet tube, an evacuation tube is disposed at the top of the shell, and a bottom blow-off opening is arranged at the bottom of the shell. The sewage drainage energy-saving flash tank has the advantages that the sewage drainage energy-saving flash tank is simple and compact in structure, convenient in installation and operation and easy in popularization and use, can realizes energy conservation and water conservation effects, and the like.

The invention relates to the technical field of solar energy, in particular to an automatic adjustment and conversion control device for a heliostat in a tower-type solar heat collecting power generation system. On the present common heliostat support tracking mechanism, a device is arranged and is provided with four connection points (A, B, C and D) equipped with bearings; AB, BC, CD and AD are connection rods and form an equilateral parallelogram; a reflection positioning surface F is arranged on the extending line of the BA edge of the parallelogram; a sunlight tracking probe E is arranged on the extending line of the DA edge; the points A and C of the parallelogram are connected by adopting a slide rod H; the point A of the parallelogram is connected with a heliostat support G; the heliostat support G is perpendicular to the AC slide rod; the AB edge of the parallelogram of the automatic adjustment and conversion control device for the heliostat tracking mechanism is connected with a mounting connection rod L, and can move rotationally only; and the mounting connection rod L is fixed on the ground.

The invention discloses a laminar shear model box capable of simulating a viscoelastic boundary, and belongs to the field of vibration testing of civil engineering structures. A box body of the laminar shear model box is formed by overlapping N layers of square steel tube frames at equal intervals; each layer of the square steel frame is formed by mutually welding four square steel pipes; in every two adjacent layers of the square steel frames, three stainless steel base plates are welded between the lower surface of the upper square steel frame and the upper surface of the lower square steel frame at equal intervals; three independent V-shaped grooves perpendicular to one another in direction are milled in each stainless steel base plate; the V-shaped angle of each groove bottom is 90 degrees; a plurality of steel balls are placed in each groove so as to form freely-sliding supporting points; and the two sides in the longitudinal direction of the box body are each provided with two round steel stand columns and steel cross beams. According to the laminar shear model box capable of simulating the viscoelastic boundary, the rigidity and the damping coefficient of the box body can be adjusted according to the soil properties of different soil bodies, and seismic responses under different soil layers or layered soil site conditions can be simulated well.

Processing Session Initiation Protocol (SIP) signaling in a voice/data integrated switching system includes: transceiving a message and data between a terminal and a system using a Voice over Internet Protocol (VoIP) SIP “INFO” method upon communication being performed between terminals via an Internet Protocol (IP)network and using a VoIP SIP “MESSAGE” method in an idle state upon communication not being performed between the terminals; processing proprietary signaling of a legacy voice switching system as standard signaling using standard VoIP SIP signaling, and simultaneously and separately processing the standard SIP signaling and the proprietary signaling of the legacy voice switching system in a system using the VoIP SIP signaling.

The invention relates to a nitrogen/chlorine (argon/chlorine) mixing and proportioning system and an operation method thereof, aiming to overcome the defect that the manual nitrogen/chlorine (argon/chlorine) mixing and proportioning process in the prior art is completed by manual operation rather than automatic operation and is low in proportioning precision and high in operation risk. The nitrogen/chlorine (argon/chlorine) mixing and proportioning system comprises nitrogen (argon) gas running equipment, chlorine gas running equipment, a nitrogen and chlorine (argon and chlorine) mixer, a mixed gas storage tank and a PLC (programmable logic controller) control cabinet, wherein tail ends of the nitrogen (argon) gas running equipment and the chlorine gas running equipment are connected with the nitrogen and chlorine (argon and chlorine) mixer together, the nitrogen and chlorine (argon and chlorine) mixer is further connected with the mixed gas storage tank for a feeding point, a pressure sensor is arranged on the mixed gas storage tank, the PLC control cabinet is connected with all the equipment, and intelligent management and operation is realized by an internal control and management system. The nitrogen/chlorine (argon/chlorine) mixing and proportioning system and the operation method thereof have the advantages that automatic proportioning operation can be realized, operators can keep away from dangerous sources, the proportioning precision is increased, the service life of the equipment is prolonged, the service pressure of the system is stabilized, and leakage caused by long-term overhigh pressure load for the end equipment is avoided.

A hydraulic type submarine pipeline connector comprises an upper connecting flange and a lower connecting flange; after the upper connecting flange and the lower connecting flange are connected, the central hole of the pipeline is closed; the upper connecting flange is fixedly connected with hydraulic cylinder bodies; an annular piston is arranged inside each cylinder body, an upper cavity and a lower cavity are formed inside the piston; under the influences of the piston, clamping teeth which can lock and release the connection of the upper connecting flange and the lower connecting flange are distributed outside the piston; one end of each pull rod is fixed on to the piston, and the other end of each pull rod penetrates out of a corresponding pull ring of the upper connecting flange; the central hole of the upper connecting flange is fixedly provided with a guide ring which is longer than the lower end surface of the upper connecting flange; an inclined plane is on the inner wall of the central hole of the lower connecting flange; the outer wall of the guide ring is provided with a seal steel ring. The guide ring has a centering and guiding function to enable the connection of the upper connecting flange and the lower connecting flange to be in place at a time and to avoid collision; the locking and release of the connecting flanges can be achieved by respectively increasing pressure and reducing pressure on every connector opening of working oil pipelines. The pull rods on the pistons can recognize the opening and closing condition of the connector and facilitate hoisting, and when failure of hydraulic power occurs, the connector can be opened through the pull rods.

The invention discloses a belt conveying control system in the field of conveying devices. The belt conveying control system comprises a power frequency voltage reference unit and a signal setting unit which are connected to an industrial computer, wherein the industrial computer is connected with a PLC, an analog signal input end of the PLC is connected with a signal output end of a speed, material position and weight signal collecting unit, a digital signal input end of the PLC is connected with a signal output end of an overload and overcurrent signal collecting unit, an analog signal output end of the PLC is connected with a signal input end of a belt motor through an ABB frequency converter, a signal output end of the belt motor is connected with a conveying belt, a digital signal output end of the PLC is also connected with a signal input end of the ABB frequency converter, and a signal output end of the PLC is further connected with a signal input end of an alarming processing circuit. By means of real-time monitoring on the working state of the conveying belt, the belt conveying control system enables a conveying system to be simple in structure, easy and convenient to install and operate, low in breakdown rate and high in reliability, and can be applied to the belt conveying system.

The invention discloses a vacuum packing device for a refrigerator. The vacuum packing device is characterized by comprising a control panel and a vaccumizing device, wherein the control panel comprises a long-strip-shaped groove, a display area and a control area; the vacuumizing device comprises an upper seat and a lower seat, a driving device and resetting devices are arranged at a random end of the upper seat and the lower seat, the upper seat is connected with the lower seat through guiding pillars, and the upper seat and the lower seat maintain a contact or non-contact condition along the guiding pillars; and a sealed hollow cavity is formed when the upper seat is in contact with the lower seat, an air feeding hole and an air discharging hole communicate with the hollow cavity correspondingly, the air discharging hole is connected with an air discharging motor, a positioning device is arranged in the hollow cavity and used for positioning a packing bag entering the hollow cavity,and a hot melt sealing device is arranged between the positioning device and the long-strip-shaped groove and used for performing hot melt sealing on the vacuumized packing bag. The vacuum packing device for the refrigerator is simple in structure and can effectively realize automatic vacuum packing.

The invention relates to a fixing device comprising a fixed seat, a locking jaw sleeve and a locking nut, wherein a hole is arranged at the top of the fixed seat, and screw threads are arranged on the outer side wall of the upper part of the fixed seat; the locking jaw sleeve is in a cylinder shape and is arranged at the top of the fixed seat, the middle hole of the locking jaw sleeve is communicated with the hole arranged at the top of the fixed seat; the locking nut is sleeved outside the locking jaw sleeve and screwed with the upper segment of the fixed seat; the surface of the locking jaw sleeve, which is matched with the inner wall surface of the locking nut, is a cone-shaped surface; and a hole which is communicated with the middle hole of the locking jaw sleeve is arranged on the top surface of the locking nut. Simultaneously, the invention also provides a floor type lamp which applies the fixing device for fixedly connecting a lamp rod and a lamp seat. In the invention, the fixing device is a detachable connection structure, can connect a fixing piece and a fixed piece stably and is convenient for installation.

The invention discloses an energy-saving type spinning cloth processing device which comprises an oven, a heating piece arranged on the inner wall of the oven, a drying roller arranged in the oven inan up-and-down moving manner and a driving component. The energy-saving type spinning cloth processing device further comprises a rotation driving device capable of driving the drying roller to rotatewhen the drying roller moves up and down and a one-way air outlet component arranged on the drying roller, and the one-way air outlet component can achieve air outlet when being extruded by externalforce. According to the energy-saving type spinning cloth processing device, the heating piece is matched with drying roller moving up and down to dry shell fabric, the heating piece is used for improving the whole temperature in the oven, the drying roller is then used for conducting near-distance heating on the shell fabric, excessive waste of hot air resources can be effectively avoided, powerconsumption is reduced, and energy conservation and environment protection are achieved.

The invention relates to building construction. The invention discloses a high-rise building construction monitoring system, and the system comprises a project department central control module, a construction process performance state calculation module, a data collection module, a communication module, and a monitoring information sharing module. The objective of the construction process performance state calculation module is to facilitate the setting of an early-warning value of a local monitoring index through an overall performance index. A building information model and numerical value simulation calculation are used for carrying out the construction process analysis of the structural overall image display and local performance state, and an image/text information module is set for carrying out the processing of effective information, and the effective information is transmitted to a cellphone user of a project department through a GSM. According to a plane region, symmetry, floors and the position of a tower crane, three-level monitoring point layout which comprises a data collection plane distribution station point, a data collection floor station point and a data collection substation is employed. The system achieves the purposes of information sharing and information management. The system is easy and feasible for installation and operation, is good in stability, is low in cost, and is high in efficiency.

The invention provides a touch control display apparatus. The touch control display apparatus comprises a front casing, a touch control assembly, touch control glass and a display screen, wherein the front casing is of a framework structure, is used for fixing the touch control assembly, the touch control glass and the display screen and comprises multiple frames which each comprise a body and a clamping plate. Each body is of a hollow structure, is provided with an accommodation chamber used for accommodating the touch control assembly and comprises an inner-side frame which is arranged to be oriented towards the inner side of the framework structure. Each clamping plate is arranged on the corresponding inner-side frame and forms a clamping groove with the corresponding inner-side frame, and the clamping grooves are used for clamping fixation of the touch control glass. The other end, away from the corresponding clamping groove, of each inner-side frame is provided with a connecting portion which is used for fixed connection with the display screen. The touch control display apparatus integrates the touch control assembly, the touch control glass and the display screen on the front casing, is simple in structure and easy to install, and improves the production efficiency.

The invention relates to a construction method of an all-casing rotary jet grouting pile. The construction method of the all-casing rotary jet grouting pile is characterized in that rotary jet grouting pile operation is performed by the steps of determining the center of hole position, positioning a drilling machine, preparing cement paste, starting a rotary jet grouting drill and the like; mounting and operation are simple and easy; waste caused by the fact that cement grout permeates towards the soil layer all around during grouting can be reduced; and a casing pipe is added, so that the pile body has higher integrality and pile formation is reliable.

The invention discloses an experiment device and method for measuring a large displacement well drill column clamping point. The experiment device comprises a simulation shaft casing pipe section, a simulation shaft naked eye section, a simulation drill column and a measuring instrument. The experiment device is simple in structure and convenient to install and operate. The effect on a correction factor eta of the clamping point position from a water droop ratio lambda is analyzed through a mathematical statistics method, a relation curve, conforming to eta=f (lambda), between eta and lambda is established, the situation that in the process of drilling a large displacement well, the stress state of a drill is complex, and a drill column connector and the well track change affect the measuring errors is corrected as much as possible, the clamping point position is worked out based on the shearing Hooke law, and accordingly the testing precision is improved.

The invention discloses a mould clamp, which comprises a clamping body installed at the lower part of an upper worktable detachably by an installation plate and a clamping part being capable of swinging relative to the clamping body; by virtue of the clamping force generated by a clamping force regulating device on the clamping part, the mould clamp tightly clamps a mould between the clamping part and a support plate extended out of the lower part of the clamping body, wherein, the inner side of the clamping part opposite to the support plate is provided with a cushion block so as to provide support for the clamping part to swing relative to the clamping body. The novel mould clamp utilizes the cushion block arranged at the inner side of the clamping part for providing support for the clamping part to swing relative to the clamping body instead of adopting a spherical bolt in the prior art, therefore, the mould clamp eliminates the problem of the difficult controlling of the locking precision of the spherical bolt and has the advantages of simple structure, easy installation and operation, and firmly clamping.

The invention discloses a dynamic safety-monitoring and alarming method in building (structure) mechanical-dismantling process. The method comprises the following steps of: acquiring the opening and closing-quantity signal of a crack group through displacement sensors installed at both sides of the crack group; and transmitting the acquired opening and closing-quantity signal of the crack group to a resistance strain meter for processing through a shielding wire, converting the opening and closing-quantity signal value of the crack group into the bending-deformation value of a column, the suspended-end sinking value of a cantilever beam or the mid-span sinking values of a simply-supported beam and a continuous beam, and connecting the resistance strain meter with one or more alarming devices. When the signal at some point processed by the strain meter exceeds the allowable value (also called as an alarming value), alarming signals are immediately sent out to the monitored point and involved dangerous points. Through the system and method, the technical problems of lagging safety-monitoring method, passive safety-assuring measures, poor safety-assuring effect and the like existing in traditional building mechanical-dismantling working can be solved.

The invention provides a shielding device for an automobile and solves the technical problems that the prior art is complex in structure, inconvenient to dismount, mount and operate and sight-sheltering, stretches outwards too much, affects driving safety and the like. The shielding device for the automobile comprises a base which is detachably connected with an automobile body. The shielding device for the automobile is characterized in that at least one motion bar is movably arranged on the base; shielding sheets which are made of flexible materials are arranged between the motion bars and the base; a folding control mechanism which can drive the motion bars to swing relative to the base to maintain the shielding sheets in an unfolded state or a folded state is arranged between the motion bars and the base. The shielding device for the automobile has the beneficial effects of being simple in structure, convenient to install and operate, less in impact on sight while being better in shielding effect under the unfolded state and convenient to collect under the folded state and the like.

The invention discloses a water bursting test device and a test method thereof. The device comprises a water tank and a model box, a water storage tank is arranged at the bottom of the model box, a plurality of monitoring elements are arranged on the outer wall of the model box, and variable channel partition plates and partition plates are arranged on the top of the water storage tank; a water permeable plate is arranged on the upper surfaces of the variable channel partition plates and the partition plates; a pressure pump and a constant-pressure valve are connected between the water tank and the water storage tank through a water injection pipeline; a pressure meter is arranged on an outlet pipeline of the pressure pump, a heating device is arranged on the inner side of the bottom of the water tank, and a plurality of water inlet holes are formed in the side wall of the water storage tank; a plate inlet is formed between the side wall of the water storage tank and the correspondingvariable channel partition plate, and a drainage valve is arranged at the bottom of the plate inlet. Water bursting phenomena at different test temperatures, different water pressures and different water bursting flow speeds can be simulated. The device can be used for water bursting tests of different test materials, and is simple in structure and complete in function.