96 results about "Pressure cell" patented technology

The present application relates to pipeline construction technology field, provide a kind of curved pipe jacking pipe section, including pipe section body, wooden backing plate and pressure box;One end of pipe section body forms pipe section interface, and the end surface of pipe section interface is provided with first recess;Setting in the end surface of pipe section interface, wooden backing plate is provided with second recess, and second recess is through wooden backing plate and is communicated with first recess;Pressure box is located in first recess and second recess, and one end of pressure box is in contact with the groove bottom of first recess, and the other end is flush with the one end of wooden backing plate away from pipe section body.The curved pipe jacking pipe section provided by the present application, wooden backing plate, when butting with adjacent curved pipe jacking pipe section, can be deformed, avoid direct extrusion between pipe section body, pressure box can monitor the stress change state of the position in curved pipe jacking process when wooden backing plate is deformed in real time, to facilitate early pre-control, avoid pipe section interface damage, and have the advantages such as simple structure, reasonable in design and easy to install, monitoring effect is good.

The invention discloses a vertical tunnel loading resistance performance test device and method, and relates to the technical field of test of resistance performance of protective equipment such as doors under specific loading. The device comprises a retaining wall arranged in an underground tunnel, a plurality of door front pressure boxes are arranged on the retaining wall, protective equipment is arranged on the front side of the retaining wall, a fixing rod is arranged on the rear side of the protective equipment, a plurality of door rear pressure boxes are arranged on the fixing rod in the height direction, and a sensor connecting rod is vertically connected to the fixing rod. A displacement sensor is arranged at one end of the sensor connecting rod close to the protective equipment. The method comprises the following steps of test protection equipment installation, test point arrangement, cable arrangement, connection test, loading device arrangement, tunnel sealing, detonation and post-detonation inspection. According to the invention, safe, controllable, repeatable and comparable resistance performance evaluation can be carried out on the whole door or door frame-wall body composite structure under the real boundary constraint and vertical installation state.

The utility model provides a protection storage device for a three-dimensional soil pressure cell, which comprises the three-dimensional soil pressure cell, a data lead and a protection shell, the protection shell comprises a rotating shaft on an outer ring and a fixed shaft on an inner ring, and the upper end and the lower end of the rotating shaft are connected with the upper end and the lower end of the fixed shaft through a rolling wheel group mechanism; the upper end of the rotating shaft is connected with the upper side rotating disc, the lower end of the fixing shaft is connected with the lower side rotating disc, and the positioning clamping groove device is installed in the rotating shaft and matched with the three-dimensional soil pressure box; a detachable rotating handle is installed on the upper right portion of the upper side rotating disc, a limiting notch is formed in the same side of the upper side rotating disc and the external protection shell, the connecting wire shifting piece is fixed to the lower portion of the limiting notch of the upper side rotating disc, and the detachable rotating handle drives the upper side rotating disc to rotate so that the data wire penetrating through the limiting notch can be wound on the fixing shaft along with the wire shifting piece. The three-dimensional earth pressure cell protection and storage device has the advantages of being small in size, high in protection performance, flexible to use and convenient and tidy to wind.

A nano-scale capacitive pressure sensor formed of an array of capacitive pressure cells is disclosed. The capacitive pressure sensor is integrated with an ASIC working as a pressure sensor and a PUF. Each of capacitive pressure cells is a hermetically sealed cavity and includes a first stationary conductive membrane and a second conductive membrane that deflects due to a force (pressure change) applied on the array of capacitive pressure sensor cells. A method of manufacturing the nano-scale capacitive pressure sensor is also disclosed.

The invention discloses a mine downward drift filling stope in-situ comprehensive monitoring system and a use method. The system is composed of a filling body stress monitoring system, a filling body strength monitoring system, a filling body displacement monitoring system and a multi-channel data acquisition module. The stress conditions of a filling body in all directions are monitored through a vibrating wire type soil pressure box and a steel bar meter in the filling body stress monitoring system, and the strength of the filling body is monitored through a wave velocity sensor and a hydraulic oil cylinder in the filling body strength monitoring system. A single-point settlement meter and a transverse displacement meter in the filling body displacement monitoring system are used for monitoring the displacement deformation conditions of the filling body in the vertical direction and the transverse direction respectively. The method has the advantages of comprehensive monitoring indexes, high monitoring precision, sustainable and continuous monitoring and the like.

The disclosure provides a flexible electrode material, a flexible electrode, and their preparation methods and applications, belonging to the technical field of composite materials. The carbon microparticle composite material includes carbon particles and gallium oxide attached to the surface of the carbon microparticles. The flexible electrode material includes, by mass, 2-17 parts of gallium-coated carbon particles and 83-98 parts of liquid metal. The flexible electrode is prepared by coating the flexible electrode material onto a flexible substrate via screen printing, attaching copper conductive wires to both ends of the printed flexible electrode material, applying a viscoelastic material coating over the surface of the flexible electrode material, and curing and drying the flexible electrode material at room temperature. The composite material can be applied to electronic skin for detecting human body motion states and earth pressure cells for monitoring soil pressure in engineering projects.

The invention relates to a pile body stress measuring system and method for an implantable cement mixing pile. The method comprises the following steps of mold assembly, sensing unit assembly, prefabricated cement soil column preparation and maintenance and on-site implantation construction. The device has the beneficial effects that the upper ends of the four claw bodies are hooped by the pair of elastic rubber rings in the annular direction, and axial movement of the inner rod is converted into synchronous radial expansion or contraction of the claw bodies under the constraint of the limiting ring through meshing transmission of conical surface threads and shifting threads; the outer wall of the split type inner wall rough mold is a conical surface, the split type inner wall rough mold is fastened and closed by being matched with a hoop ring for hoop sleeving, the larger the displacement of the hoop ring tightening towards the middle is, the higher the mold closing fastening degree is, and slurry leakage and mold expansion in the filling and pressing process are prevented. Hemispherical protrusions are distributed on the side wall face of the split type inner wall rough mold, so that the prefabricated cement soil column and the micro-expansive cement are attached more tightly, meanwhile, the end of the supporting slender rod abuts against the inner walls of the semispherical protrusions in a matched mode, and fixing of the soil pressure cell during pouring is achieved.

The utility model relates to the technical field of geological disaster monitoring discloses the automatic monitoring structure of stratum collapse is monitored with soil pressure gauge, including monitoring hole, sleeve tube, multiple soil pressure gauge, data acquisition appearance, power supply equipment and monitoring early warning platform, monitoring hole sets in stratum collapse hidden danger point area, sleeve tube fixed mounting is in monitoring hole, multiple soil pressure gauge is arranged in the internal cavity along the length direction of sleeve tube layer, and the internal wall interval of soil pressure and internal cavity forms and has filled area, and the backfill layer is filled in filled area, data acquisition appearance is connected with every soil pressure gauge through data transmission wire, power supply equipment and data acquisition appearance electricity are connected, through layering setting multiple soil pressure gauge in sleeve tube, can layering capture the soil pressure change of different depth stratum, solved the problem that traditional monitoring point is single, the cooperation of data acquisition appearance and monitoring early warning platform realized the real -time transmission and analysis early warning of data, improved the timeliness and accuracy of monitoring.

The present application relates to a kind of pile soil pressure testing device and testing method for indoor slope model test, wherein device includes several round pile molds and several soil pressure cell forming systems, the soil pressure cell forming system includes connecting rod and soil pressure cell forming block, two sides of the soil pressure cell forming block are respectively connected with the end of a connecting rod, the other end of the connecting rod is detachably connected with the pile segment connection component, through-hole is formed on the round pile mold, and the soil pressure cell forming block is arranged in the round pile mold through the through-hole.The overall detachable connection can flexibly determine the length of the pile body to be simulated;Pile body mold and soil pressure cell forming system adopt split design, so that the device has very high practicability;Soil pressure cell forming system can be flexibly laid out, and the number and position can be determined according to the test needs, so that the present application has good versatility;Main structural material can be reused, meet environmental protection.

The invention discloses an in-situ monitoring device for soil-water pressure behind a well wall and an installation method, and relates to the technical field of soil-water pressure monitoring. In-situ real-time monitoring of the soil pressure and the water pressure behind the well wall can be achieved, and then the safety of the well wall structure is ensured. According to the technical scheme, a hole is formed in the inner wall of a shaft through a common drill bit, and an orifice pipe is embedded; a common drill bit is replaced by a drilling device, the drilling device is sequentially connected with a core monitoring device and a special drill rod, the drilling device comprises a three-petal openable drill bit, and the core monitoring device comprises an earth pressure box, a pore water pressure gauge front bin and a pore water pressure gauge rear bin. The inner wall and the outer wall of the shaft are drilled and then reversed; pulling out the limiting pin to take out the special drill rod; and long-term monitoring is carried out. According to the invention, in-situ actual measurement of stratum soil pressure and water pressure at different depth positions can be realized, actual measurement data can be provided for a deep underground engineering ground pressure theory, and long-term safe operation and maintenance of a well wall can be assisted.

A pressure cell holder for attachment to a housing of an extracorporeal blood treatment machine, such as a dialysis machine. The pressure cell holder includes a gripping device for holding a pressure cell inserted into the pressure cell holder by enclosing or engaging the pressure cell, and an ejector mechanism for ejecting the pressure cell when the gripping device is released.

The present application relates to the technical fields of segregation degree detection, in particular to a device and method for in-situ detection of segregation degree of tailing bubble lightweight soil, which comprises a fixing assembly, a detection assembly, a positive soil pressure cell host and a lateral soil pressure cell host; the positive soil pressure cell host and the lateral soil pressure cell host are electrically connected with the detection assembly; the fixing assembly comprises a sleeve capable of filling tailing bubble lightweight soil inwardly; the detection assembly comprises an adjusting frame which is slidingly connected to the inside of the sleeve; the adjusting frame is internally provided with a positive soil pressure cell, and the adjusting frame is internally provided with a lateral soil pressure cell. The positive soil pressure and the lateral soil pressure of the tailing bubble lightweight soil at different filling positions are obtained through the detection assembly, and the change amplitudes are calculated respectively, so as to evaluate the segregation degree of the tailing bubble lightweight soil. The present application has strong operability, is simple and convenient, can freely adjust the position to be detected according to the field requirements, and has wide application prospect.

The application belongs to the technical field of cell culture equipment, and provides a high-low pressure cell culture device, which comprises a device box, a device cover movably installed on the device box, a high-pressure device cover and a low-pressure device cover, a plurality of sieve-shaped partitions for placing cell culture dishes and detachably arranged in the device box, and a first air inlet and exhaust pipe installed on the sidewall of the device box, and further comprises a pressure regulating mechanism, which comprises a pressure regulating box, a driving assembly, a first adjusting part, a fixing part, a second adjusting part and a second connecting part. The high-low pressure cell culture device can control the gas pressure in the device through the pressure regulating mechanism, completely separates the CO2 partial pressure control and temperature control of the device from the device, controls the CO2 partial pressure and temperature in the device under different pressures by controlling the CO2 concentration and ambient temperature in the high-pressure gas source, and makes the device structure simpler and the operation more convenient.

The application relates to the technical field of urban underground space, and discloses a power pipe gallery jacking pipe construction method convenient for testing internal force and earth pressure, which comprises the following steps: prefabricating a reinforcing cage and a terminal box mold, welding a reinforcing stress meter on the outer side of the reinforcing cage, binding the terminal box mold on the reinforcing cage, extending a signal transmission line into the inner side of the reinforcing cage through the terminal box mold, hoisting the reinforcing cage into a steel formwork, sticking one end of the terminal box mold to an inner formwork, binding a prefabricated mold on the reinforcing cage and ensuring that the rear end of the prefabricated mold abuts against the inner formwork, pouring concrete into the steel formwork, demolding to form a prefabricated jacking pipe, marking the position of the prefabricated mold, installing an earth pressure cell in the prefabricated mold and sealing the earth pressure cell, introducing a signal transmission line of the earth pressure cell into the inner side of the prefabricated jacking pipe through the prefabricated mold, and taking out a signal transmission line of the reinforcing stress meter from the terminal box mold.

The utility model provides an earth pressure cell fixing device which comprises a bottom box, at least one fixator is coaxially and rotatably installed on the outer circumferential face of the bottom box, an open cavity for containing an earth pressure cell is formed in the upper surface of the bottom box, a fixing cover for fixing the earth pressure cell is detachably and fixedly installed at the open end of the bottom box, and the fixing cover is fixedly installed on the bottom box. A through hole is formed in the fixed cover in a penetrating manner; by means of the overall arrangement, the soil pressure box can be rapidly fixed to the pile steel bar, more convenience and flexibility are achieved, and therefore the installation efficiency is improved.

A testing device for the grouting effect of a subway shield tunnel includes a device box, a channel lining, a dense clay layer, a sandy silt layer, a silty clay layer, a tunnel system, and a measurement system. The dense clay layer, sandy silt layer, and silty clay layer are arranged sequentially from top to bottom within the device box. The channel lining is located in the middle above the dense clay layer. The tunnel system is arranged between the sandy silt layer and the silty clay layer. The measurement system includes a displacement sensor, a water-sensitive soil moisture sensor, and an earth pressure cell. The displacement sensor is installed on the top surface of the dense clay layer on both sides of the channel lining. The water-sensitive soil moisture sensor is arranged between the channel lining and the tunnel system. The earth pressure cell is located within the silty clay layer. A method for testing the grouting effect of a subway shield tunnel is also provided. This invention not only enables the testing of the grouting effect of subway shield tunnels but is also simple, easy to operate, inexpensive, and has a short cycle time.

This invention discloses a pressure testing device for paper-faced gypsum board production, relating to the field of industrial manufacturing technology. In this solution, the telescopic component, telescopic cylinder, and directional trigger's sealed container rotate with the rotating frame, matching the feeding speed of the conveying component. As the board is uniformly conveyed and displaced during automated production, the telescopic cylinder, under the action of the directional trigger, pushes out the bottom sliding plate, achieving instantaneous pressure application upon contact. After pressure application, due to continuous movement, the sealed container and pressure box misalign, the compressed gas from the telescopic cylinder flows back into the sealed container, the sliding plate retracts, and simultaneously the detection roller loses pressure. After deformation, the board resets and disengages from the detection roller, completing instantaneous non-destructive bonding and instantaneous testing. This method, with the coordination of synchronous conveying and rotation, achieves full pressure testing in continuous production without causing instantaneous contact damage to the board surface.

A kind of intelligent testing device of longitudinal freeze-thaw deformation characteristics of tunnel, heat insulation material position adjusting system is located in the outermost ring of testing device, cold source and heat source are arranged in heat insulation material position adjusting system, water temperature meter is located in cold source and heat source, heat conduction material position adjusting system is located in the inside of heat insulation material position adjusting system, longitudinal area partition plate is located at each boundary of longitudinal each area, tunnel lining is located in the center of ring of testing device, lining thickness adjusting system is located in tunnel lining, front and rear panels are located at the front end and rear end of entire testing device respectively, and the cavity formed by front and rear panels and heat conduction material position adjusting system is filled with soil body, and soil pressure box, displacement meter and moisture content probe are arranged in soil body area.This application provides a kind of intelligent testing method of longitudinal freeze-thaw deformation characteristics of tunnel.This application can realize the test of tunnel deformation under longitudinal non-uniform freeze-thaw condition, and it is simple, easy to operate, low cost and short cycle.

The invention relates to the technical field of box-type roadbed construction, and particularly discloses an earth pressure box, a box-type roadbed foundation counter-force monitoring method and a box-type roadbed foundation construction method. The soil pressure box comprises a shell used for storing an induction diaphragm, a strain gauge and a signal processing circuit, and an adjusting base used for adjusting the levelness of the shell; the adjusting base comprises a chassis rotationally connected with the shell; a plurality of jacking pieces distributed in the circumferential direction of the base plate are arranged on the base plate and used for pushing the shell to rotate along the rotating connecting position. The monitoring method comprises the step of burying the soil pressure boxes in the mattress layer in the process of laying the mattress layer in the box-type roadbed construction. The construction method comprises the following steps: S1, arranging pile sites; s2, the CFG piles are poured; s3, laying a mattress layer; s4, foundation counter-force monitoring; s5, pouring the box-type roadbed; s6, monitoring static characteristics and dynamic response characteristics of the box-type roadbed; and the construction efficiency of constructors can be well improved.

The utility model discloses a pressure monitoring self-adaptive connecting device, which relates to the technical field of medical instruments and comprises a sealing component arranged on equipment and a connecting component used for mounting a pressure box. The sealing assembly comprises a connector and a support, a connecting through groove is formed in the support, and an elastic piece coaxially arranged outside the connector in a sleeving mode is arranged between the support and the connector. One end of the elastic piece is fixedly installed on the side wall of the connecting through groove, and the other end of the elastic piece is fixedly installed on the side wall of the connector. A channel communicated with the pressure sensor is formed in the connector. The connecting assembly is used for driving the pressure box to move so that the pressure box can abut against the connector. Through the arrangement of the elastic piece and the connecting assembly, the self-adaptive connector can abut against the pressure box, and it can be ensured that stable and reliable sealing connection is achieved between the pressure box and a monitoring interface on the hemodialysis or purification equipment.

The invention discloses an air control pressurization type cell culture instrument in the technical field of cell culture instruments. The air control pressurization type cell culture instrument comprises a culture cabin, a cabin cover and a pressure detection unit, the cabin cover is provided with a dynamic pressure simulation module which is used for generating periodic dynamic pressure for simulating the respiratory rhythm of a human body in the culture cabin; in the process of culturing the cells in the human body, the driving mechanism is used for driving the moving plate, the elastic element and the piston to reciprocate, the pressure in the culture cabin fluctuates within a certain range, and the periodic change of the in-vivo pressure intensity when the human body breathes is simulated, so that the cells grow in a state closer to the in-vivo state; a more reliable in-vitro cell model is provided for subsequent research for revealing physiological and pathological mechanisms of a human body; and in the culture process, the detection mechanism and the compensation mechanism are used for supplementing or discharging gas into the culture cabin, so that the air pressure change caused by cell respiration in the culture cabin can be automatically adjusted.

The application discloses a model test discrimination method for arching effect of soil between piles, which can utilize the soil pressure distribution law measured by pressure sensors installed in different soil bodies far and near between two adjacent piles, and simultaneously combine the apparent shape formed after stress displacement of the fine sand layer with different colors laid on the surface of the model soil body, and comprehensively research and judge the soil pressure characteristics and the apparent shape, if the discrimination results of the two are greater than the center distance of the two piles, then it is judged as invalid, otherwise, the discrimination result of the pressure box is used as the criterion, so that the effect of improving the discrimination reliability is achieved.

This invention discloses a testing device for the deformation of tunnel pipe roof support, specifically relating to the field of pipe roof support technology. The key technical points are: a load-bearing base plate, a test cover fixedly installed on the top surface of the base plate, a filling hole on the top surface of the test cover, and pipe roof support installed on the top surface of the base plate; and a testing assembly disposed inside the filling hole for deformation testing of the pipe roof support. Through the coordinated use of the load-bearing base plate, test cover, filling hole, feeding frame, detection plate, earth pressure cell, and pipe roof support, the pipe roof support can be placed inside the test cover. Simultaneously, soil and rocks are placed inside the test cover to simulate the geological conditions requiring support. Then, the earth pressure cell measures the pressure exerted by the soil and rocks inside the test cover, facilitating pressure testing of the pipe roof support and accurately determining the stress characteristics of the pipe roof structure under burial conditions.

The utility model discloses a grouting belt method in-situ testing device based on an earth pressure cell, which comprises a reinforcement cage, a mounting frame is fixedly arranged on the reinforcement cage, the earth pressure cell is arranged in the mounting frame in a sliding manner, a directional limiting device is fixedly arranged between the mounting frame and the earth pressure cell, and the directional limiting device is fixedly connected with the reinforcement cage. The sliding direction of the soil pressure box is the radial direction of the reinforcement cage, and a grouting belt is further arranged between the soil pressure box and the mounting frame; after the grouting belt is filled with grouting materials, the grouting belt is continuously expanded to push the soil pressure box to advance towards the hole wall, finally the soil pressure box is tightly contacted with the soil body of the hole wall, the soil pressure box is protected from being wrapped by concrete, the soil pressure box is ensured to be effective, the soil pressure box is clamped between the cast-in-place pile and the surrounding soil body, the three are tightly contacted, and the transmission path of soil pressure is ensured.

The invention discloses a skin care composition containing an eyebright extract, which is prepared from the following raw materials: the eyebright extract, a baobab pulp extract, a rosa canina fruit extract, a safflower extract, a pomelo leaf extract, a humectant, a thickening agent, a chelating agent, a preservative, a pH regulator and deionized water. Wherein the eyebright extract is prepared by combining a high-pressure cell disruption technology and an ultrasonic extraction technology. The composition achieves the remarkable effect through the synergistic effect of multiple components, wherein the eyebright extract serves as a core active component, and experiments prove that the eyebright extract can cooperate with other plant extracts to achieve the multiple effects of preserving moisture, locking water, resisting aging, tightening skin, relieving sensitivity and the like; all the components form a stable system through optimized proportioning, and the mild and non-irritating characteristics are kept while the skin barrier function is improved.

The utility model discloses a soil pressure cell limiter of an expansive soil two-dimensional dilatometer, which comprises a limiter main body and an adjusting screw, the limiter main body is of a cubic structure, and a soil pressure cell accommodating cavity for limiting and placing a soil pressure cell is arranged in the front surface of the limiter main body; the soil pressure box containing cavity is a circular blind hole matched with the outer ring of the soil pressure box, and a through screw hole is formed in the bottom of the soil pressure box containing cavity; the adjusting screw is installed in the screw hole, a limiting stopper opening is formed between the front face of the limiting stopper body and the soil pressure box containing cavity in a penetrating mode, and limiting stopper protruding structures are arranged on the two wings of the back of the limiting stopper body. The soil pressure box limiter of the expansive soil two-dimensional dilatometer is ingenious in structural arrangement, the back face of the limiter body is fixedly adhered to the sensor supporting block, displacement of a miniature soil pressure sensor on a radial plane in the dilatometer can be effectively limited, and data measured by the miniature soil pressure sensor are more stable and accurate.

This invention relates to a method, system, storage medium, and equipment for monitoring soil pressure on closed-end pipe piles based on fiber optic grating (Fiber Bragg grating) sensing technology, belonging to the field of geotechnical engineering monitoring technology. This invention, for the first time, combines the theory of thick-walled cylinders based on elastoplastic mechanics with distributed fiber optic grating sensing technology to construct a precise analytical model relating the axial strain, circumferential strain, and soil pressure on the pile body of the closed-end pipe pile, achieving a technological leap from "point measurement" to "distributed sensing." Compared to traditional point-based soil pressure cell monitoring methods, this invention enables high-precision, quasi-distributed, and long-term stable monitoring along the entire length of the pile. Simultaneously, the fiber optic grating possesses unique advantages such as small size, resistance to electromagnetic interference, corrosion resistance, and wear resistance, causing no damage to the pile itself and being easy to operate. This significantly improves the continuity and reliability of soil pressure measurement, effectively overcoming the technical shortcomings of traditional sensors, such as susceptibility to damage during pile driving and the inability to monitor in real time.

The utility model discloses a self-operated pressure regulating valve, and particularly relates to the technical field of regulating valves, which comprises a valve body, a pressure pipe and a pressure box, and is characterized in that a valve seat is fixed at the central position in the valve body, water through holes are arranged on two sides of the valve seat, a valve core is arranged on the inner side of the valve seat, and the valve core is connected with the pressure box. A diaphragm is installed in the pressure box, the top end of the connecting rod extends into the pressure box, and an observation assembly is arranged at the top end of the outer side wall of the connecting rod. The observation platform is arranged, the linkage ring is arranged on the outer side of the connecting rod in a sleeving mode and is fixed through tightening of the fixing bolt, the linkage plate at the side end of the linkage ring extends into the sliding groove in the side end of the pressure box and is connected with the observation platform on the outer side, and when the diaphragm is pressed and drives the connecting rod to move downwards, under the assistance of the linkage ring, the observation platform is fixed. When the diaphragm rotates, the linkage plate and the observation platform can be driven to move downwards along the sliding groove, so that the pressed state of the diaphragm is fed back, and the feedback observation function of rotation of the diaphragm of the self-operated pressure regulating valve is achieved.

The utility model relates to the technical field of pressure detection, in particular to an earth pressure cell with a wing plate. Comprising an earth pressure box and a pressure box wing plate, the earth pressure box is of a cylindrical structure, a center hole is reserved in the center of the pressure box wing plate, the center hole of the pressure box wing plate is a round hole, the earth pressure box is arranged in the center hole, and the thickness of the pressure box wing plate is the same as that of the earth pressure box. The device enables the rigidity of the force measuring surface of the soil pressure box to be consistent with that of the wing plate. The structure effectively eliminates the stress concentration phenomenon caused by stiffness mutation in traditional measurement, and has remarkable technical advantages in the aspects of weakening the soil arching effect and improving the measurement precision. The utility model is mainly applied to the field of earth pressure cells with wing plates.