82 results about "Transverse pressure" patented technology

The invention discloses an auxiliary braking device for a vertical lifting type gate, and belongs to the technical field of vertical lifting type gates. The vertical lifting type gate is arranged in the gate groove in a lifting mode, and the auxiliary braking device comprises a hydraulic separating type crane, a hydraulic separating type crane and a hydraulic separating type crane, and the hydraulic separating type crane is configured to be capable of applying transverse pressure to the vertical lifting type gate so that the vertical lifting type gate can abut against and be fixed to the gate groove; the electric pump is connected to the liquid inlet of the hydraulic separation type crane and is configured to supply hydraulic fluid to the liquid inlet of the hydraulic separation type crane by hydraulic pressure; the regulating valve is arranged on a pipeline for connecting a liquid inlet of the hydraulic separating crane and an outlet of the electric pump; the auxiliary braking device is configured to adjust the pressure level of hydraulic fluid in the hydraulic separating type crane by adjusting the opening degree of the adjusting valve so as to adjust the transverse pressure.

The invention discloses a protective film tensile strength detection device and method, and relates to the technical field of protective film strength detection, the protective film tensile strength detection device comprises a transverse moving mechanism and a vertical moving mechanism; an outer side mounting seat is mounted on one side of the vertical moving mechanism in a matched manner, and a laser cutter is arranged in the outer side mounting seat; according to the laser cutting device, when a cylinder rod of the double-rod air cylinder contracts, the lifting base drives the laser cutter to move upwards, in the upward moving process, an ejector rod can eject a ball in a U-shaped groove to roll, the ball generates downward pressing force on a downward pressing rod, and a transverse pressing rod arranged at the end of the downward pressing rod is pressed on a pressing cam; due to the arrangement of the rubber plate, a certain deflection allowance is formed when the buckle and the clamping column are clamped and fixed, so that the clamping of the protective film can be ensured, and the protective film is prevented from falling off during a tensile test; after the tensile test is finished, the clamping column is manually pulled towards one side, so that the clamping between the buckle and the clamping column can be released, the broken protective film can be detached, the structure is simple, and the operation is convenient.

The utility model relates to the technical field of detection and testing, and provides a pipe fitting torsion testing machine. The pipe fitting torsion testing machine comprises a base, a driven mechanism, a driving mechanism and a vertical loading mechanism, a groove is formed in the upper surface of the base, a sliding groove is further formed in the upper surface of the base, and the driven mechanism is connected into the groove. According to the pipe fitting torsion testing machine provided by the utility model, a torsion load loading system, an axial pressure load loading system and a transverse pressure load loading system are highly integrated, so that torsion, axial and bending three-axis composite loading can be realized on single equipment unprecedentedly; the real stress environment of pipe fittings such as geological drill rods under extreme working conditions is reproduced to the maximum extent, compared with a traditional single-axis or two-dimensional loading test, the test result can more accurately predict the actual service performance and failure mode of the pipe fittings, and the applicability is wider.

The utility model discloses a loess reinforced retaining wall model test device, which relates to the technical field of retaining wall test devices and comprises a model test box, a wall panel is movably connected to one side of the model test box, a top plate is connected to the inner side of the top end of the model test box, and filler is filled in the model test box. Different numbers of balancing weights can be selected on the adjusting vertical rod according to needs, so that the bearing vehicle body has different gravity load conditions, the sliding wheels can be driven to rotate through the driving motor, and the bearing vehicle body is driven to integrally reciprocate along the top plate. Different positions, different speeds and different pressure conditions are simulated under the action of a plurality of groups of top loading mechanisms at different positions, vehicle dynamic cyclic loads under different conditions are generated, and the transverse pressure or vertical pressure change condition in the model test box is detected in real time in cooperation with the action of a vertical pressure box and a transverse pressure box; and the accuracy of test results is ensured.

The invention relates to the technical field of foam container valves, and discloses a polyurethane foam caulking agent packaging container valve and a packaging container, the polyurethane foam caulking agent packaging container valve comprises a valve body, the valve body comprises a sealing colloid, a clamping shell is arranged on the outer side surface of the sealing colloid, and the clamping shell is used for wrapping a foam caulking agent bottle body; a sliding pipe is arranged in one side of the sealing rubber body, a conveying pipe is arranged in the sliding pipe, and a threaded head is arranged at the top of the conveying pipe. According to the invention, through mutual cooperation of the driving rod, the sliding block and other components, when the arc-shaped handle is subjected to longitudinal pressure, the driving rod can be driven by the sliding block along the interior of the sliding groove to longitudinally move; and when the arc-shaped handle is subjected to transverse pressure, a driving rod can transversely move towards the direction of the sliding pipe through mutual cooperation of a sliding block, a reset spring and a baffle, and therefore the effect of clamping or extruding the outer side surface of the sliding pipe can be achieved through a circular ring and a scraper.

The utility model discloses an energy-saving environment-friendly hydraulic oil cylinder with a function of preventing a piston from moving and sliding, which relates to the technical field of hydraulic oil cylinders and comprises a cylinder barrel and a piston rod, cavities are arranged on two sides of the cylinder barrel, a piston block is connected to the tail end of the piston rod, two groups of grooves are arranged on the side face of the piston block, and sealing gaskets are arranged in the grooves. The utility model has the advantages that when the piston block is subjected to transverse force, the rolling bead is in contact with the inner wall of the cylinder barrel, so that the concentrated transverse force can be effectively dispersed and converted into rolling friction to be uniformly distributed to each contact point, the transverse pressure concentration degree of the piston block is reduced, and the piston block is prevented from being deformed and damaged; when the piston rod moves with dust, the contact block can scrape the dust, meanwhile, when the piston rod stretches out and draws back, the guiding and auxiliary supporting effects are achieved, the sliding phenomenon is prevented, and the reliability and stability of overall work of the oil cylinder are improved.

A hub surface of a guide vane body of the water-jet propulsion pump is a hemispheroid, guide vane body blades are distributed on the guide vane body, the sides, close to the plane of the hemispheroid, of the guide vane body blades are roots of the guide vane body blades, and the bone surfaces of the guide vane body blades of the water-jet propulsion pump are taken as reference surfaces S; the front side of the guide vane body blade is a pressure face C, the back face of the guide vane body blade is a suction face A, the back face of the micro-baffle structure is a suction face B, one side of the micro-baffle structure is connected with the pressure face of the guide vane body blade, and the other side of the micro-baffle structure extends to the outer edge of the guide vane body blade after being bent. Development of the wake at the root of the impeller in a guide vane body channel is limited, the guide vane body transverse vortex intensity caused by the transverse pressure gradient is restrained, the structure is simple, the efficiency of the water-jet propeller can be improved, and the dynamic flow excitation force of the water-jet propeller can be reduced.

The utility model discloses a novel three-dimensional force sensor, which comprises an elastic sensor main body with a cylindrical structure, the upper part of the elastic sensor main body is provided with a first annular groove, the lower part of the elastic sensor main body is provided with a second annular groove, and four mounting positions are arranged in the second annular groove; an axial strain gauge is attached to the first annular groove, and three of the four installation positions are each provided with a transverse strain gauge. Thus, axial pressure information is received through the axial strain gauge in the first annular groove, transverse pressure information is received through the three transverse strain gauges, and the application scene of the sensor is improved.

The invention relates to the field of flow control of turbine mechanical parts of aviation gas turbine engines, in particular to a non-axisymmetric end wall transverse pressure distribution design method and system.The method comprises the steps that the range of a non-axisymmetric end wall profile covers the area from the front edge to the tail edge of a blade in the axial direction; a transverse end wall profile control line is arranged at the separation starting position of the flat end wall blade grid corner area; giving transverse distribution of static pressure coefficient variation on the end wall profile control line; calculating a target static pressure value of the non-axisymmetric end wall at a corresponding axial position based on the transverse distribution of the variable quantity of the static pressure coefficient and the transverse distribution of the static pressure coefficient of the flat end wall cascade at the corresponding position; and performing three-dimensional inverse problem design according to the target static pressure value of the non-axisymmetric end wall at the corresponding axial position to obtain a corresponding non-axisymmetric end wall profile. The method disclosed by the invention can be used as a non-axisymmetric end wall universal design method for improving the flow of the end area of the compressor blade.

The utility model discloses a coarse grain noodle pressing device which comprises an outer sleeve, the upper end and the lower end of the outer sleeve are respectively provided with a filling opening and a plurality of noodle outlet holes, an upper cover is screwed on the filling opening, a noodle pressing plate is vertically inserted in the outer sleeve in a sliding mode, a tooth-shaped pressing rod is connected to the noodle pressing plate, and a pressing handle is arranged on the upper cover. The utility model relates to the technical field of dough pressing devices, dough is placed in the outer sleeve, then the pressing handle is lifted upwards to enable the transverse pressing rod to be pressed in the inverted tooth-shaped opening, and the pressing handle is rotationally connected with one end of the upper cover through the connecting plate, so that the pressing handle has a larger lifting angle, and the dough pressing mechanism is arranged on the pressing handle. Therefore, the transverse pressing rod can be pressed into the inverted-tooth-shaped opening at the higher position, then the movable pressing handle is pressed downwards, the tooth-shaped pressing rod is pressed downwards through the transverse pressing rod, and then the dough is pressed out of the dough outlet hole in the lower end of the outer sleeve through the dough pressing plate to form long noodles.

The drying module comprises an air nozzle body, the air nozzle body comprises an upper air inlet flow dividing cavity and a lower pressure relief cavity, and the air inlet flow dividing cavity is used for conducting internal splayed flow dividing on hot air; pressure relief openings are formed in the two opposite sides of the pressure relief cavity; a plurality of transverse pressure relief air equalizing holes are evenly formed in the bottom of the pressure relief cavity in the length direction, and the hole diameters of the transverse pressure relief air equalizing holes are gradually reduced from the center to the two sides. The pole piece drying device can effectively prevent the pole pieces from deviating and wrinkling in the drying process, so that the pole pieces are conveyed stably, and the qualified rate of products is guaranteed.

The present invention relates to the technical field of lifting mechanisms, specifically to a boom for aerial work and its connecting mechanism, comprising an outer boom and multiple groups of inner booms arranged inside the outer boom, and the inner booms are also rotatably connected to each other, with outer rotating frames rotatably connected at positions near the top on both sides of the outer boom, and inner telescopic columns movably inserted into the outer rotating frames. The inner boom is pulled out from the outer boom and deployed. When deployed, the inner telescopic column needs to be pulled out from the outer rotating frame. The structure composed of the outer rotating frame, the inner telescopic column and the transverse pressure plate moves from the front of the outer boom to the back of the outer boom, and the inner boom inside the outer boom can be deployed. When not in use, the structure composed of the outer rotating frame, the inner telescopic column and the transverse pressure plate is located outside the outer boom and the inner boom. The structure composed of the outer rotating frame, the inner telescopic column and the transverse pressure plate protects the inner boom, prevents the inner boom from moving and shaking inside the outer boom, reduces the additional stress and fatigue damage caused by shaking of the boom, and reduces the risk of structural damage.

The application discloses a large equipment hoisting device and method, belongs to the technical field of engineering hoisting machinery, and solves the problems of attitude imbalance caused by gravity center deviation and low manual adjustment efficiency. Technical scheme points of the application include: a T-shaped guide rail groove and a slidable main lifting lug are arranged on the top surface of a balance beam, and first to third lifting points are symmetrically arranged at both ends; a hydraulic system is integrated in the beam to drive the main lifting lug to move; a first hoisting assembly is hingedly connected with a first lifting lug of equipment and a second hoisting assembly is connected with a second lifting lug of equipment through a lifting belt and an electric reversing chain; a closed-loop control system monitors load differences of beam ends through longitudinal pressure sensors and monitors load differences of equipment lifting lugs through transverse pressure sensors, and an adaptive adjustment module automatically controls displacement of a hydraulic cylinder or an angle of a reversing chain according to longitudinal and transverse load difference values, so that bidirectional imbalance correction is realized. The application is mainly used for accurate and safe hoisting of large equipment.

The invention discloses a large equipment hoisting device and method, belongs to the technical field of engineering hoisting machinery, and solves the problems of attitude imbalance and low manual adjustment efficiency caused by gravity center shift. According to the technical scheme, a T-shaped guide rail groove and a slidable main lifting lug are arranged on the top face of a balance beam, and first to third lifting points are symmetrically arranged at the two ends; the hydraulic system is integrated in the beam to drive the main lifting lug to move; the first hoisting assembly is hinged with a first hoisting point and a first equipment lifting lug; the second hoisting assembly is connected with a second hoisting point, a third hoisting point and a second equipment lifting lug through a hoisting belt and an electric chain block; the closed-loop control system monitors the beam end load difference through the longitudinal pressure sensor, the transverse pressure sensor monitors the equipment lifting lug load difference, the self-adaptive adjusting module automatically controls the displacement of the hydraulic cylinder or the rotation angle of the chain block according to the longitudinal and transverse load difference value, and bidirectional unbalance correction is achieved. The device is mainly used for accurate and safe hoisting of large-scale equipment.

A set of fixtures for measuring the stiffness of metal bellows expansion joints and their assembly structures relates to the field of fixture technology. It includes a fixed end fixture and a movable end fixture. The movable end fixture includes a fixture body, a connecting column, a nozzle elbow, and a fixed clamp. The fixture body has a first workpiece flange connection hole. The connecting column has a first connection hole and first planes on both sides. The exposed end of the nozzle elbow is internally threaded. The middle section in the thickness direction of the fixed clamp is in the same plane as the middle section in the thickness direction of the fixture body. The fixed end fixture includes a fixture body and a connecting column. The fixture body has a second workpiece flange connection hole. The connecting column has a second connection hole and second planes on both sides. The present invention achieves the use of only one set of fixtures to simultaneously meet the stiffness measurement test conditions of the metal bellows expansion joint and its assembly structure with or without axial and lateral pressure, thereby reducing costs.

The utility model relates to a packaging box folding device which comprises a supporting bottom frame and a vertical supporting plate, folding plates are symmetrically hinged to the two sides of the supporting bottom frame, a hydraulic cylinder is fixedly arranged at the top of the vertical supporting plate, and the output end of the hydraulic cylinder penetrates through the vertical supporting plate and is fixedly provided with a transverse pressing rod. The two sides of the supporting bottom frame are provided with the screw assemblies used for driving the folding plates to rotate, specifically, a paperboard to be folded is firstly placed on the supporting bottom frame, then the folding plates are driven by the screw assemblies to rotate in the direction close to each other, the packaging box paperboard can be automatically folded, and the labor intensity of workers is reduced.

The utility model discloses an indent non-coplanar multi-guide-rail feeding system precision retentivity test bed. The indent non-coplanar multi-guide-rail feeding system precision retentivity test bed comprises an indent bed body, a T-shaped workbench, a hydraulic device, a servo motor, a hydraulic loading device, a linear guide rail, a ball screw and the like. In the moving process of the workbench, the hydraulic device can apply transverse pressure to the sliding block through the hydraulic rod connected with the sliding block, and the influence mechanism of the external load on the precision retentivity can be conveniently researched. The machine tool body is designed in a concave mode, the concave structure of the machine tool body meets the design requirement of a non-coplanar structure, the system is different from a traditional coplanar double-guide-rail four-sliding-block feeding system, and the working stability of a machine tool is improved. In order to adapt to the concave bed body, the working table adopts a T-shaped design, and meanwhile, the hydraulic loading device is arranged at the lower half part of the T-shaped working table. According to the design, the influence mechanism of the external load on the precision retentivity can be researched, the machining precision requirement is met, the machining precision is effectively improved, and the method is worthy of application and popularization.

The invention relates to the technical field of lifting mechanisms, in particular to an aerial work boom and a connecting mechanism thereof.The aerial work boom comprises an outer boom and a plurality of sets of inner booms arranged in the outer boom, the inner booms are rotationally connected, outer rotating frames are rotationally connected to the positions, close to the top, of the two sides of the outer boom, and inner telescopic columns are movably inserted into the outer rotating frames. The inner arm frame is pulled out of the outer arm frame to be unfolded, the inner telescopic column needs to be pulled out of the outer rotating frame during unfolding, the structure composed of the outer rotating frame, the inner telescopic column and the transverse pressing plate moves to the back face of the outer arm frame from the front face of the outer arm frame, and the inner arm frame in the outer arm frame can be unfolded. The structure composed of the outer rotating frame, the inner telescopic column and the transverse pressing plate is located outside the outer arm frame and the inner arm frame, the structure composed of the outer rotating frame, the inner telescopic column and the transverse pressing plate protects the inner arm frame, the inner arm frame is prevented from moving and shaking in the outer arm frame, extra stress and fatigue damage caused by shaking of the arm frame are reduced, and the risk of structural damage is reduced.

The invention discloses dam body leaking stoppage equipment and a leaking stoppage method, and relates to the field of grouting repair devices. Dam body leaking stoppage equipment comprises a hydraulic splitting machine and an inserting rod, a connecting rod is fixedly connected to the telescopic end of the hydraulic splitting machine, the inserting rod is connected to the connecting rod in a threaded mode, the dam body leaking stoppage equipment further comprises two sets of double-wing grooving plates which are both rotationally connected to the inserting rod, and after the two sets of double-wing grooving plates are spliced together, the dam body leaking stoppage equipment with the middle round and the middle round can be formed. After the groove plates with the extending ends on the two opposite sides are pressed into soil, splitting grooves can be formed in the dam body. The pressing strip is fixedly connected to the bottom of the double-wing grooving plate; the transverse pressing grooves are formed in the splitting grooves in a pressing mode, the guiding effect can be achieved, grouting liquid can flow towards the extending ends on the two sides along the pressing grooves, the situation that the splitting grooves are damaged due to direct impact of grouting liquid is avoided, and meanwhile leakage caused by the fact that the grouting liquid permeates into soil at the non-extending ends is reduced.

The utility model discloses an ultrasonic knife transducer, which is characterized in that a fixing mechanism is arranged at the tail end of an ultrasonic amplitude-change pole on one side of the ultrasonic knife transducer, a clamping sleeve and the ultrasonic amplitude-change pole are screwed in a threaded manner to realize tightening type locking, and a pressing part with a conical inclined surface is arranged in the clamping sleeve. According to the blade fixing mechanism, the threaded locking mode of the clamping sleeve and the ultrasonic amplitude-change pole is matched with the pressing mode of the conical inclined face, transverse pressing force and longitudinal anti-disengagement force are formed on the blade clamping device, the blade clamping device can be clamped stably, and therefore the blade can be clamped stably. The structure is simple, parts are mutually locked, transmission loss of sound wave amplitude cannot be caused, and the cutting efficiency of the tail end of the blade can be higher.

An INVAR strip rib improving method, comprising: S1: obtaining a strip initial state, including a strip thickness, a strip width, and a strip initial flatness state, the initial flatness state including straightness, edge wave height, and center wave height of the strip; S2: adjusting initial flattening process parameters according to the initial state of the strip, the flattening process parameters including convexity of a flattening roller, furnace temperature, tension, and holding time; S3: placing the strip after S2 adjustment into a heat treatment furnace, monitoring a transverse pressure difference of the strip, measuring a pressure distribution in real time at an outlet of the heat treatment furnace and calculating a real-time transverse pressure difference ΔP of the strip; and S4: dynamically adjusting the flattening process parameters in the process according to the transverse pressure difference of the strip, so as to make the transverse pressure difference of the strip satisfy a target threshold value.

The utility model belongs to the technical field of annular pressure equalizing devices, in particular to an annular pressure equalizing structure applied to an air floating guide rail, which consists of an air floating bottom plate and an orifice plug, an inner grading ring, an outer grading ring, a vertical grading groove, a transverse grading groove, an internally communicated gas channel and pressure-bearing surfaces which are arranged in the inner grading ring and the outer grading ring and are flush with the end surface of the air floatation bottom plate are processed on the front end surface of the air floatation bottom plate. According to the air floatation guide rail, on one hand, the pressure equalizing grooves and the pressure equalizing rings are matched with each other, efficient pressure equalizing is conducted on air, the load capacity of the air floatation guide rail can be greatly improved, the problem that a traditional guide rail is poor in performance under the space limitation or high stability requirement is effectively solved, on the other hand, the pressure distribution uniformity can be remarkably improved, the local pressure gradient is reduced, and the service life of the air floatation guide rail is prolonged. The bearing area of the air film is enlarged, so that the rigidity and the stability of the guide rail are improved, the air floating guide rail is more reliable in practical application, and the use requirements of various precision devices can be better met.

The invention discloses a turbine guide vane end wall cascade-like channel type assembly clearance structure based on a transverse pressure gradient, and belongs to the field of gas turbine end wall cooling. The assembly gap is of a cascade-like channel type structure with the consistent cross section configuration in the axial direction, the pressure side wall face is similar to a blade pressure surface molded line, the suction side wall face is similar to a blade suction surface molded line, and a flow channel capable of generating a stable transverse pressure gradient is jointly formed. And a leakage hole is formed in the sealing sheet. The transverse pressure gradient is utilized to actively regulate and control sealing cold air entering the gap from the leakage hole, so that the sealing cold air is orderly migrated from the pressure side to the suction side and flows close to the wall surface, and the adiabatic temperature distribution in the gap and the air film coverage of the suction side wall surface are remarkably improved. And meanwhile, the leakage flow and the cold air of the air film holes in the end wall have a synergistic effect, so that the cooling effect and uniformity of the downstream surface of the end wall are enhanced, the net heat flux reduction amount is remarkably increased, the mixing loss is reduced to a certain extent, and good balance between efficient and uniform cooling and low pneumatic loss is realized.

The application discloses a rib force transmission type cable clamp, which comprises an upper half of the cable clamp and a lower half of the cable clamp; the outer periphery of the upper half of the cable clamp is arranged with a plurality of upper side rib strips which are protruded along the circumference and are arranged at an axial interval; the upper side rib strips correspond to the regions of the radial side of the upper half of the cable clamp and form upper side pressure bearing parts which can be penetrated by a bolt pair; the outer periphery of the lower half of the cable clamp is arranged with a plurality of lower side rib strips which are protruded along the circumference and are arranged at an axial interval; the lower side rib strips correspond to the regions of the radial side of the lower half of the cable clamp and form lower side pressure bearing parts which can be penetrated by a bolt pair. The application can ensure that the upper half and the lower half can be fully stressed and tightly hold the main cable in the axial and circumferential directions, and stress concentration can be generated at the axial nodes of the upper half and the lower half at the positions corresponding to the rib strips, so that the locking stress similar to the wave-shaped concentrated force transmission is generated in the axial direction, the transverse pressure of the cable clamp on the main cable is generated in the axial direction, and the anti-sliding bearing capacity of the cable clamp on the main cable is improved.

The invention relates to the technical field of stamping equipment, and discloses a high-precision intelligent stamping device which comprises a base and two sets of fixing devices symmetrically arranged on the two sides of the top face of the base and used for conducting three-axis clamping and fixing on a machined workpiece, it is guaranteed that the workpiece is kept stable in the stamping process, and the machining precision of the workpiece is guaranteed. The two supporting plates are fixedly connected to the two sides of the top face of the base respectively, and the positioning device is arranged on the two supporting plates. The fixing device is arranged, two elastic telescopic rods are used for pushing sliding plates to move close to each other, transverse pressure is applied to a workpiece, so that the workpiece is transversely fixed, the workpiece is pressed on a pressure bearing table through a fixing plate, the workpiece is longitudinally fixed, baffles are used for limiting the front side and the rear side of the workpiece, and front-back fixing and three-axis fixing of the workpiece are matched; the workpiece is stably clamped and fixed, it is guaranteed that the workpiece is kept stable in the stamping process, and the machining precision of the workpiece is guaranteed.

The utility model relates to the technical field of connecting line glue pouring clamps, and provides a clamp tool for connecting line glue pouring solidification, which comprises a tool main body, an upper cover is arranged at the top end of the tool main body, and a pressing block is arranged in the tool main body. The pressing block and the connecting wire sheath part are tightly attached, the rear seat is placed and locked along the rear end of the sheath, the rear seat generates forward pressure on the connecting wire sheath, it is guaranteed that the sheath cannot slide backwards, when glue is solidified and expanded in the connecting wire, expansion force in all directions can be generated, and the connecting wire is clamped and fixed through the pressing block and the rear seat, so that the connecting wire cannot slide backwards. The connecting line and the internal glue are restrained in the transverse direction (the direction perpendicular to the axis of the connecting line), so that the glue is limited in transverse expansion and cannot expand towards the periphery without limitation, the transverse pressure on the connecting line sheath is reduced, and the risk that the sheath is expanded is reduced.

The utility model relates to the technical field of industrial automation equipment manufacturing, in particular to an automatic start-stop pressure stabilizing device of an air compressor, which is reasonable in structure and reliable in work, and is characterized in that an external discharge pipe group is connected with an exhaust pipe of the air compressor, and a pressurizing component is respectively communicated with a pressure stabilizing component and the external discharge pipe group; the external discharging pipe set comprises a connecting pipe connected with an exhaust pipe of the air compressor, the upper end of the connecting pipe is communicated with a horizontally-arranged transverse pressing pipe, the side face of the transverse pressing pipe is communicated with one end of a pressure supply pipe, a pressure meter used for monitoring pressure data is arranged on the transverse pressing pipe, and one end of the transverse pressing pipe is closed and fixedly connected with a pressure stabilizing assembly through a connecting flange. The other end of the transverse pressure pipe is connected with the pressure release valve; the pressure stabilizing assembly comprises a pressure stabilizing box, and an air inlet one-way valve is arranged on the pressure stabilizing box; the pressurizing assembly comprises a pressurizing pipe, a sealing shell, a piston and a piston driving component, wherein the sealing shell and the piston are matched.

This scheme belongs to the field of concrete detection, and specifically relates to a concrete intelligent detection and testing system, equipment and method. A concrete intelligent detection and testing equipment includes: a bottom plate and a dark box, a placing table for placing test pieces is fixedly connected in the dark box, a grinding wheel and a rotating shaft coaxially fixedly connected to the grinding wheel are arranged below the placing table, one end of the rotating shaft is fixedly connected to a motor for driving the rotating shaft to rotate, and the other end of the rotating shaft is fixedly connected to a counterweight block, the rotating shafts on both sides of the grinding wheel are rotatably connected to outer shaft wheels, and the lower end of the outer shaft wheel is fixedly connected to a cylinder, the piston rod of the cylinder is fixedly connected to the outer wall of the outer shaft wheel, and a second pressure detection device is arranged on the piston rod of the cylinder, and the cylinder is fixedly connected to the bottom plate; a pressure detection device is fixedly connected to the inner wall of the dark box, and the pressure detection device is used to detect the lateral pressure above the placing table. This scheme solves the problem that it is difficult to conveniently and finely adjust the pressure when testing test pieces.

A device for inspecting the straightness of a building elevator shaft wall comprises a buoyancy lifting device and a wall-climbing detection device. At least two wall-climbing detection devices are supported on the surface of the elevator shaft wall and connected to the buoyancy lifting device, allowing for adjustment of their longitudinal height within the elevator shaft. Each wall-climbing detection device is equipped with a transmission-connected crawling mechanism and a pressure detection mechanism. The crawling mechanism can abut against the shaft wall and roll back and forth relative to it, while the pressure detection mechanism drives the crawling mechanism and senses the lateral pressure generated by uneven shaft walls. This invention can save manpower during the entire shaft wall straightness inspection process, improve the efficiency of shaft wall straightness inspection, and meet the construction requirements of simultaneously inspecting the straightness of multiple layers of shaft walls.