101 results about "Thin shells" patented technology

The invention relates to the technical field of motor shell machining, in particular to a precise metal part cutting clamp which comprises a working table, a rotating seat is rotatably mounted on the working table, and a three-jaw chuck is mounted in the middle of the upper end of the rotating seat, and is characterized in that a supporting plate is fixedly mounted on the rotating seat through a plurality of frame connecting rods; an anti-overturning unit and an inner supporting unit are mounted on the supporting plate; before the motor shell is clamped, the motor shell can be pre-positioned, so that the three-jaw chuck can be aligned and centered without depending on larger clamping force, and the situation that the motor shell with a thin shell is deformed due to the fact that the clamping force is too large is prevented; when an inner hole of the motor shell is machined, the outer side of the motor shell can be radially supported, when the outer side of the motor shell is machined, the inner hole of the motor shell can be rigidly and internally supported, the overturning moment generated in the cutting process is effectively offset, the stability of the motor shell in the machining process is improved, and therefore the machining precision of the motor shell is ensured.

The invention provides a dense pre-support structure thin shell mechanical modeling method, and relates to the technical field of tunnel engineering soft stratum pre-support structure mechanical modeling, and the method comprises the steps: calculating the equivalent stiffness of a pipe shed-jet grouting pile composite layer based on a Voigt theory; establishing a continuous thin shell model taking the control equation as a core; constructing a plastic / elastic disturbance partition in front of the tunnel face and a four-section type boundary condition of a supporting structure through a Pasternak foundation model; and solving the constructed continuous thin shell mechanical model through a finite difference method to obtain radial displacement, and completing mechanical modeling of the tunnel engineering soft stratum pre-supporting structure. The continuous thin shell model designed by the invention can provide high-reliability theoretical support for tunnel pre-support design.

The invention relates to an electric arc additive design-simulation-reinforcement-construction integration method for a curved metal thin shell, which comprises the following steps of: adopting a metal wire, and obtaining a three-dimensional structure model of a metal thin shell structure by utilizing the curved surface shape optimization design of a shell unit; simulating and predicting the deposition of the exposed thin shell structure; simulating and predicting the deposition of the reinforced thin-shell structure; and reinforcing thin-shell metal 3D printing construction. The method has the beneficial effects that the stress and deformation distribution and amplitude of the exposed thin shell structure are obtained through deposition simulation prediction with low cost, and reinforcement measures are set based on the stress and deformation distribution and amplitude, so that excessive deformation in the printing process of the electric arc additive process is avoided to a great extent, and the service life of the electric arc additive process is prolonged. Printing failure and printing repositioning caused by excessive deformation are avoided, and the forming quality and the material performance of the metal forming structural part are effectively guaranteed.

The present application relates to a kind of large section deep soft rock tunnel combined support system and construction method, the present application is combined with elastic shell theory and equivalent section method, a steel arch frame-grating combined support mode suitable for deep large section soft rock tunnel is proposed, the support rigidity of simply using steel arch frame or grid steel frame is overcome or supported, the disadvantage of lower in long-term large deformation unfavorable surrounding rock stability and deformation control, solve the problem that the stress of existing support structure is larger, the self-bearing capacity of surrounding rock cannot be fully exerted, cause material waste is serious, the safety factor of support structure is low, difficult to guarantee the stability of tunnel, and provide a simple and practical construction method for tunnel excavation and support.

The invention discloses a welding process device and method for a gate of a side wall thin-wall frame structure of a motor train unit project. The welding process device comprises a bottom support supported at the bottom of the device. The side wall upper edge clamping assembly is arranged on the upper portion of the bottom support and used for clamping and fixing the upper edge of a side wall. The cross beam clamping assembly is arranged at the upper part of the bottom bracket and is used for positioning and fixing an upper edge and a door frame cross beam; a water storage and slow cooling structure is arranged between the side wall upper edge clamping assembly and the upper edge of the side wall, the specific heat capacity of a medium filled in the water storage and slow cooling structure is larger than that of a body material of the water storage and slow cooling structure, and the thermal conductivity of the water storage and slow cooling structure is smaller than that of the body material of the water storage and slow cooling structure. According to the process device and method, welding deformation can be effectively controlled, the welding quality and the production efficiency are improved, and good application prospects and popularization value are achieved.

The invention discloses a superstructure shell device for reducing noise radiation, which comprises an outer shell and an inner shell, and is characterized in that the outer shell and the inner shell are of a thin shell structure which is coaxially arranged; and one or more annular noise reduction devices, wherein the annular noise reduction devices are arranged between the outer layer shell and the inner layer shell. The connecting device is used for coaxially and fixedly connecting the outer-layer shell, the annular noise reduction device and the inner-layer shell; wherein each annular noise reduction device comprises an integrated circular ring frame and at least one closed particle damping cavity, the circular ring frame comprises a plurality of torsion structure cavities and connecting rods in the annular direction, the torsion structure cavities and the connecting rods are periodically arranged in the annular direction, and the torsion structure cavities and the connecting rods form periodic structure units in a plane; the particle damping cavity is defined by a cover plate and the torsion structure cavity, and the particle damping cavity is filled with spherical particles.

The utility model discloses processing equipment for a luggage with a light and thin shell and belongs to the technical field of luggage punching, the processing equipment for the luggage with the light and thin shell comprises a rack, a fixing plate, a lifting device and a punching device, the outer end of the rack is provided with a roller way assembly, and a plurality of limiting assemblies used for forming rotation resistance are installed in the roller way assembly; a pressing and holding assembly used for extruding and fixing the luggage is arranged at the bottom end of the punching device, when a drill bit moves downwards to conduct drilling, an abutting disc of the drill bit makes contact with the surface of the luggage for limiting firstly, then a limiting block abuts against the interior of a limiting hole through the acting force provided by a plurality of second springs, and therefore resistance is formed for rotation of a roller shaft; according to the luggage punching device, the roller way assembly is arranged, so that the luggage is not prone to moving on the roller way assembly, secondary limiting is formed, the luggage is fixed, the punching quality is improved, meanwhile, additional fixing operation is not needed during punching, the pressing assembly and the roller way assembly are automatically matched, and therefore the machining efficiency can be improved.

This invention discloses a pre-defined fracture-type pile tip deformation monitoring device, construction method, and monitoring method for driven steel pipe piles. The monitoring device includes a transmission mechanism and a fracture sensor installed at the bottom of the driven pile. The fracture sensor includes a sensing wire, multiple thick shells, and multiple thin shells, which are alternately distributed and connected end-to-end to form a circular portion that matches the inner wall of the driven pile. Each thick shell has a first through hole and a second through hole at its two ends. A resistor is embedded in each thin shell. The sensing wire is connected to both ends of the resistor through the first and second through holes to form independent circuits. All independent circuits are connected in parallel and to the transmission mechanism through corresponding armored wires. This invention has advantages such as economy, convenience, sensitivity, and accuracy. It is suitable for steel pipe pile construction under various geological conditions, effectively improving project quality and reducing engineering risks caused by pile tip deformation.

This invention relates to a high-precision, cost-effective method for manufacturing open, curved integral thin-shell shells, belonging to the field of advanced manufacturing. It solves the problem that existing methods struggle to simultaneously achieve low cost, high efficiency, and high precision when manufacturing open, curved integral thin-shell shells. The method includes the following steps: S1, establishing a theoretical model of the thin-shell; S2, performing finite element simulation of subsequent assembly processes on the thin-shell; S3, performing finite element simulation of the mold during heating; S4, digitally unfolding the reconstructed thin-shell model to obtain an accurate planar unfolded model of the thin-shell. This invention, through multiple key steps such as thin-shell reconstruction, mold reconstruction and / or differential temperature design, and conversion of the three-dimensional thin-shell model into a planar unfolded model, can effectively improve the manufacturing efficiency of thin-shell shells, shortening the processing cycle by more than 75%; reducing costs by more than 80%; and improving the precision of thin-shell manufacturing, with product surface accuracy reaching the order of 0.3mm / 1000mm.

This invention relates to the field of aqueduct construction technology, and discloses a method for on-site construction of a U-shaped aqueduct body based on a self-propelled trenching machine, as well as the self-propelled trenching machine itself. It aims to solve the technical problems of poor structural adaptability, insufficient construction stability, difficulty in precision control under complex working conditions, and inefficient construction organization when using conventional bridge mobile formwork for the construction of large-span U-shaped thin-shell aqueducts in the prior art. The invention includes the following steps: S1. Equipment assembly and anti-overturning reinforcement; S2. Pre-stressing and positioning of the formwork structure; S3. Installation of reinforcing steel and prestressed structure; S4. Positioning of the inner formwork anti-buoyancy structure; S5. Concrete pouring and curing; S6. Prestressing tensioning and grouting; S7. Equipment demolding and longitudinal movement through holes; S8. Formwork closing and cyclic construction. The self-propelled trenching machine of this invention, by setting a horizontally opening and closing lower hanging beam and a foldable hydraulic inner formwork structure, enables the formwork to accurately adapt to the complex hyperboloid contour and ultra-large width of the U-shaped aqueduct, solving the structural adaptability problem of conventional formwork.

The present application relates to concrete vibration technology field, disclose a thin shell concrete structure through type vibrating device. A plurality of pairs of fixed blocks are arranged on the two side forms of the concrete, the middle part of the vibrating rod is embedded into the concrete through the rotating holes on the two side fixed blocks, then the vibration unit is used to generate vibration, the vibration is transmitted to the vibrating rod embedded in the concrete, so as to vibrate the concrete; after the vibrating operation is completed, the vibrating rod protruding out of the surface of the concrete is cut and subjected to rust-proof treatment. A flexible shaft is arranged in the transmission device, and the flexible shaft is used to reduce the vibration transmitted by the vibration unit to the driving unit. Based on the above measures, a plurality of vibrating rods penetrating through the two side forms of the concrete are arranged in the concrete at a horizontal interval, the vibrating of the thin shell concrete structure is realized, and the problem of difficult vibration of the thin shell concrete structure is solved; in addition, the flexible shaft is arranged in the transmission system, the vibration is reduced to the driving unit, which is conducive to the operation of the workers, and the energy loss is also reduced.

The application discloses a protective living structure convenient to transport and deploy, and belongs to the technical field of buildings, comprising an air cushion type living cabin and an inflatable shell covering the outer surface of the air cushion type living cabin, a protective filling layer is arranged between the inflatable shell and the air cushion type living cabin, and a filling opening for filling protective material into the protective filling layer is arranged on the inflatable shell. Compared with the prior art, the application can overcome the contradiction between the construction requirements of large size and multiple functions and the limited volume of the load cabin of the carrier in the existing habitat construction scheme, and solve the problems that loose protective material is difficult to self-support and form, the geometric shape of the protective layer is difficult to maintain, and the utilization efficiency of the protective material is low.

The invention relates to the technical field of bridge swivel, and provides a thin shell casting type swivel spherical hinge and a mounting construction method. The thin shell casting type swivel spherical hinge comprises an upper spherical hinge body, a lower spherical hinge body and a lower spherical hinge body, the upper spherical hinge body is of a cavity thin shell structure which is integrally cast and formed, and the thickness of the upper spherical hinge body ranges from 40 mm to 120 mm; the lower spherical hinge is arranged below the upper spherical hinge, the lower spherical hinge is of a cavity thin shell structure which is integrally cast and formed, the thickness of the lower spherical hinge is 40-120mm, and a plurality of material injection holes, vibration holes and exhaust holes are formed in the top of a spherical panel of the lower spherical hinge; and the multiple friction sliding sheets are circumferentially distributed between the upper spherical hinge and the lower spherical hinge. Compared with the prior art, the thin-shell casting type swivel spherical hinge has the advantages that on the basis that the swivel spherical hinge meets the requirements for structural strength and rigidity, the compactness of concrete on the lower portion is effectively improved, and meanwhile the structural weight can be greatly reduced.

The invention relates to the field of material recovery, in particular to a crushing device for thin shells of particles with Mohs hardness of 9.5 grade. According to the crushing principle, the shells of hard particles are crushed by means of instantaneous shear force between a movable grinding head and a static grinding head, the device mainly comprises the movable grinding head, the static grinding head, a feeding port and a discharging port, the static grinding head is arranged below the movable grinding head, and the discharging port is arranged below the static grinding head. A particle channel is arranged between the movable grinding head and the static grinding head, one end of the particle channel is connected with the feed port through a pipeline, and the other end of the particle channel is connected with the discharge port through a pipeline; cutting grooves are formed in the dynamic grinding head and the static grinding head, the positions of the cutting grooves of the dynamic grinding head and the static grinding head are opposite, and the dynamic grinding head and the static grinding head crush particles through shearing. Through the design of the movable grinding head and the static grinding head, the abrasion degree of a traditional crushing device during crushing of thin-shell materials with the Mohs hardness of 9.5 level is reduced. By changing the material channel gap between the movable grinding head and the static grinding head, the crushing fineness of particle thin shells with the Mohs hardness of 9.5 grade can be controlled and adjusted.

This invention discloses a hollow structure Go piece, belonging to the technical field of chess products. The invention includes a Go piece body, which consists of a shell, a hollow area, and internal supports. The Go piece body adopts a thin-shell structure design, with hollow areas on the shell and internal supports arranged in the non-hollow areas. Specifically, the pentagram series hollow Go pieces use a fully supported structure, while the snowflake series hollow Go pieces feature a combination of columnar and radial support structures. This invention optimizes the layout of the hollow areas and internal supports through topological modeling, significantly reducing weight, achieving a lightweight Go set, and facilitating portability while effectively ensuring the structural strength and durability of the Go pieces. This invention relies on structural optimization to precisely control the center of gravity of the Go pieces, ensuring a high degree of consistency in the center of gravity of each piece through refined structural proportions, effectively improving placement stability and game feel. This invention features a novel structure, diverse shapes, and strong practicality, effectively solving the technical problems of traditional solid Go pieces, such as heavy weight, inconvenience in carrying, difficulty in accurately controlling the center of gravity, and poor consistency.

Systems and methods for elastically foldable structures are described. The high-strain composite thin-shell structures offer high stiffness to mass ratio and increased packaging efficiency, with the additional advantage that their deployment is aided by releasing the strain energy stored in the elastic folds in a controlled quasistatic manner.

This invention relates to a precast ECC ring-ECC rod-RAC unreinforced beam with a recoverable connection component, belonging to the field of structural seismic technology. It includes a precast ECC ring-ECC rod-RAC combined unreinforced beam and a recoverable connection component. The precast ECC ring-ECC rod-RAC combined unreinforced beam is connected to columns via the recoverable connection component. The precast ECC ring-ECC rod-RAC combined unreinforced beam uses recycled concrete (RAC) as the beam structure, with ECC rods and ECC rings replacing the longitudinal reinforcement and stirrups of traditional steel bars, respectively. The recoverable connection component includes UHPC spacers on both sides and an ECC thin shell in the middle. The ECC thin shell consists of two curved thin shells arranged vertically, with multiple sets of X-shaped intersecting resettable CFRP bars between the two ECC thin shells. It has advantages such as being economical and environmentally friendly, lightweight, having excellent seismic performance, and being able to quickly recover its function after an earthquake.

The utility model discloses a press-fit assembly equipment for vacuum machine shell, including control device, machine body, machine table, replaceable support plate and press-down mechanism, the upper surface of support plate is molded with profiling frock locating structure for frock locating the shell workpiece to be assembled, the support plate is provided with a plurality of perforations, and the perforations are used for locating the shell workpiece to be assembled. The bending ejector rods are inserted into the corresponding penetrating holes respectively, and the tops of the bending ejector rods extend upwards to the upper surface of the supporting plate. The downward pressing mechanism comprises a pressing plate and a downward pressing driving device, the pressing plate is movably installed above the supporting plate in the vertical direction, at least one pressing part is arranged on the bottom face of the supporting plate and comprises two or more profiling abutting pieces, the profiling abutting pieces are arranged in a soft mode, and the bottom faces of the profiling abutting pieces are matched with the surface of the wiredrawing panel to be assembled; the pressing driving device is in transmission connection with the pressing plate and is connected with the control device. Compared with the prior art, the device can replace manual work to carry out press-fit assembly of the thin shell, and the production efficiency and the assembly quality are improved.

The utility model relates to the technical field of long-horned beetle catching, and discloses a special tool for long-horned beetle catching of carya illinoensis, which comprises a trapping tank, the upper side and the lower side of the trapping tank are communicated, the bottom of the trapping tank is provided with a trapping agent placing seat, the top of the trapping tank is provided with a top cover, the bottom of the top cover is provided with a storage assembly, and the storage assembly is provided with a storage cavity. The storage assembly is matched with the trapping tank, a guide pipe is arranged on one side of the trapping tank, the guide pipe is communicated with the interior of the trapping tank, the trapping tank can be fixedly installed on a carya illinoensis tree in advance through the storage assembly and the trapping agent containing base, and when the season of spawning of longhorn beetles is reached, the trapping agent containing base can be used for trapping the longhorn beetles. The adult longhorn beetles emerging in carya illinoensis trees can be attracted into the storage assembly, the adult longhorn beetles are prevented from laying eggs on carya illinoensis trunks, the prevention effect is achieved, and the problems that in the prior art, regular prevention and control are needed, and if prevention and control are not conducted in time, the growth of trees is affected are solved.

The invention provides a method for cultivating a new strain of Fujian oysters with white thin shells and high meat yield, and belongs to the technical field of aquaculture. Class groups with white shell color, shell thickness of 0.8-1.5 mm, shell depth of more than 2cm and high meat yield are preliminarily screened as core groups; preferably selecting 10% of Fujian oyster groups with white shells, the shell thickness of 0.8-1.5 mm, the shell depth of more than 2cm and the meat percentage of more than 20% by adopting a head cutting selection method, so as to obtain a new Fujian oyster strain with white thin shells and high meat percentage; further purifying the characters of white shell color, shell thickness of 0.8-1.5 mm and high meat yield in a family breeding mode to form a second-generation breeding family; and finally, a new strain with stable characters is obtained through several generations of continuous purification. The new strain of the Fujian oysters with white shells, thin shells and high meat yield has the advantages of stable inheritance, high meat yield, extremely high commodity value and the like, and has huge popularization and breeding prospects.

The utility model discloses a tensioning clamp for a small thin-walled shell part. The tensioning clamp comprises a mounting sleeve (1) used for being connected with a machine tool, a tensioning end cover (10) arranged at the end of the mounting sleeve (1) and an adjusting mechanism which is arranged in the mounting sleeve (1) and pulls the tensioning end cover (10) to tension the thin-walled shell part. The tensioning end cover (10) comprises an annular positioning part (15) and a pressing part (16) arranged at the end of the annular positioning part (15), an avoiding hole (13) corresponding to a part is formed in the pressing part (16), multiple sets of evenly-distributed avoiding grooves (14) are formed outside the avoiding hole (13), and a set of first force transmission holes (11) which are coaxially formed and matched with an adjusting mechanism are formed in the annular positioning part (15). The clamping device has the advantages that clamping is convenient, and the thin-shell part is not prone to being damaged.

This invention relates to the field of razor clam aquaculture technology and discloses an air flotation sorting device for juvenile razor clam shells. The device includes a sorting box, which is a rectangular box structure with an open top. Side limiting plates are fixedly installed on the inner walls of the left and right sides of the sorting box. A layered screening mechanism is movably installed inside the sorting box corresponding to the inner side of the side limiting plates. The highest point of the side limiting plates is flush with the highest point of the layered screening mechanism after installation. In this invention, the sorting box stores water, and the entire sorting process for juvenile razor clam shells is completed in an aquatic environment, eliminating the problem of dehydration damage. This design aligns with the aquatic survival characteristics of juvenile razor clam shells, significantly improving the survival rate of sorted juvenile razor clam shells. It solves the problems of traditional sorting methods that result in detachment from the water and low survival rates. The device uses microporous ceramic aeration plates to generate fine and uniform microbubbles, which gently agitate the water, creating a gentle flow without hard impacts. This is suitable for thin-shelled juvenile razor clam shells, reducing the breakage rate of juvenile razor clam shells from the source.

The utility model provides an electronic equipment accessory which comprises a shell and a support, the shell is provided with a containing space used for containing electronic equipment, the support is connected to the shell and can be switched between an open state and a closed state, the shell can be supported and erected on a surface through the support in the open state, and the support is contained in the shell in the closed state; the support is provided with a containing part which can contain a handwriting pen of the electronic device. According to the application, the accommodating part is arranged on the bracket, so that the handwriting pen can be accommodated on the bracket, and compared with processing of the accommodating part on a relatively thin shell, processing of the accommodating part on the bracket is simpler, the cost is relatively low, processing of the shell is not needed, and the problems of size increase, inconvenience in holding and use and the like caused by processing of the shell are avoided.

The application discloses a UHPC thin shell pipeline production system and method, which comprises a flat car, a movable formwork and a forming trolley; an outer form and an end form are arranged on the flat car, and an inner form is movably arranged in the outer form; a counterforce tensioning and pressing device is arranged between the inner form and the outer form, so that the inner form and the outer form can move relatively; the forming trolley is provided with a hoisting device, which is used for assisting in mounting the inner form and also used for hoisting and transferring the UHPC thin shell. In the preferred scheme, the flat car is provided with a plurality of flat car wheel groups and a plurality of flat car jacking cylinders; the flat car jacking cylinders are used for jacking the flat car to a certain height; and the flat car is moved by a tractor. The UHPC thin shell can be pressurized and poured in a mobile die-casting mode, the strength of the UHPC thin shell can be improved by the die-casting mode, or the thickness of the UHPC thin shell can be reduced. The vertical formwork, pouring, auxiliary form closing, die-casting, form maintenance, auxiliary demolding, demolding maintenance form a pipeline production, and the production efficiency of the UHPC thin shell is greatly improved.

The utility model provides a loudspeaker assembly and electronic equipment. The loudspeaker assembly comprises a shell and a sound production main body assembled on the shell, the shell comprises a shell main body, a structural member and an injection molding body, and the structural member independent of the shell main body can make the thickness of the shell be reduced by utilizing the structural attribute of the structural member. The shell body, the structural member and the sound production body define a front cavity, and the shell body is provided with a first opening communicating the front cavity with the outside of the loudspeaker assembly. The structural member is provided with a through hole penetrating through the structural member in the peripheral area of the sounding main body, the injection molding body comprises a glue structure and an extension structure, and the glue structure is located around the sounding main body, so that the glue forms sealing between the glue structure and the sounding main body. And the extension structure is connected with the adhesive structure and the outer side surface, back to the adhesive structure, of the structural member through the through hole so as to fix the structural member. According to the extension structure, the fixing reliability of the structural part is enhanced, the sealing failure caused by separation from the structural part due to volume reduction after injection molding is avoided, and the waterproof performance can be improved.

The application discloses a carbon fiber three-spiral structure with three stable states and double mechanical properties for buffering and damping, which comprises three carbon fiber composite material thin shells and two connecting pieces for fixing the thin shells, two ends of the three carbon fiber composite material thin shells are respectively connected to the outer sides of the two connecting pieces and are fixed and assembled. The structure has three stable states, two of which are respectively used for impact resistance and damping. By fixing the connecting piece at one end and reversely twisting at the other end, the structure can be switched to another stable state and has the second mechanical property. The double mechanical property makes the structure meet the requirements of impact resistance and damping at the same time, and improves the energy absorption effect and vibration control ability.

The invention discloses an apocarya shell crushing device, which belongs to the technical field of walnut shell crushing, and comprises an external frame body and a crushing mechanism for performing secondary crushing on the primarily crushed apocarya shells, a rolling mechanism for primarily rolling and crushing the carya illinoensis shells and a driving mechanism for providing power for the device are arranged on the external frame body; accumulated force release work cycle is achieved, in the force storage stage, the fine crushing hammer is locked by the fixing clamping block, energy of a transmission system is stored in the force storage spring, after accumulated force reaches the limit, the fixing clamping block is tripped, the force storage spring is released instantly, the fine crushing hammer is driven to impact at a high speed, strong instantaneous impact force is applied to materials in the fine crushing chamber, and the materials are crushed. Through the fine crushing chambers which are connected in series at the upper stage and the lower stage, materials are sequentially subjected to high-strength impact crushing twice, so that the granularity of finally produced particles is finer and more uniform, and the granularity requirement of subsequent high-added-value utilization is met.

The invention discloses a preset fracture type piled steel pipe pile end deformation monitoring device, a construction method and a monitoring method. The monitoring device comprises a transmission mechanism and a fracture sensor arranged at the inner bottom end of a piled pile. The fracture sensor comprises a sensing wire, a plurality of thick shells and a plurality of thin shells, the thick shells and the thin shells are alternately distributed, and the thick shells and the thin shells are sequentially connected end to end to form a circular ring part matched with the inner wall of the driven pile; a first through hole and a second through hole are formed in the two ends of the thick shell respectively, a resistor disc is embedded in the thin shell, the sensing wire is connected with the two ends of the resistor disc through the first through hole and the second through hole respectively to form independent loops, and all the independent loops are connected in parallel and connected with a transmission mechanism through corresponding armored wires. The method has the advantages of economy, convenience, sensitivity, accuracy and the like, is suitable for steel pipe pile construction under various geological conditions, and can effectively improve the engineering quality and reduce the engineering risk caused by pile end deformation.

The post-disaster portable toilet bedpan structure comprises a U-shaped thin shell and a drawable groove shell capable of being inserted into the opening end of the thin shell, a bearing groove shell is fixedly arranged at the bottom end of the U-shaped opening of the thin shell, the bottom face of the bearing groove shell is an inclined face, the lowest end of the inclined face is located over a toilet groove of the drawable groove shell, and the bottom end of the inclined face is connected with the toilet groove of the drawable groove shell. Therefore, excrement falling into the inclined surface can slide into the excrement groove of the drawable groove shell. Through the innovative design scheme, compared with the prior art, the toilet bedpan has the remarkable advantages that firstly, the modular main body structure design is adopted, so that each functional unit of the toilet bedpan can be independently replaced so as to adapt to different post-disaster environments and emergency requirements, the situation that the toilet bedpan is integrally replaced due to local damage or pollution is avoided, the service life is prolonged, and the maintenance cost is reduced;