30results about How to "Difficult to disturb" patented technology

A detector (110) for determining a position of at least one object (118) is disclosed. The detector (110) comprises:at least one optical sensor (112), the optical sensor (112) being adapted to detect a light beam (150) traveling from the object (118) towards the detector (110), the optical sensor (112) having at least one matrix (152) of pixels (154); andat least one evaluation device (126), the evaluation device (126) being adapted to determine a number N of pixels (154) of the optical sensor (112) which are illuminated by the light beam (150), the evaluation device (126) further being adapted to determine at least one longitudinal coordinate of the object (118) by using the number N of pixels (154) which are illuminated by the light beam (150).

A heating apparatus 2 comprises a housing 20; a flat heating chamber 4 which is provided in the housing 2 and adapted to heat a wafer W used as a substrate, with one side of the heating chamber 4 opening for carrying in and carrying out the wafer; and a heating plates 44, 45 provided in the heating chamber 4 such that the wafer W can be heated from both above and below. A cooling plate 3 is provided in the housing 20 located in the vicinity of the opening of the heating chamber 4, for cooling the wafer W after being heated by the heating plates 44, 45. Additionally, a carrying means is provided in the housing 20 for carrying the wafer W between an upper position of the cooling plate 3 and the interior of the heating chamber 4 such that a heat treatment for the wafer W can be performed with the wafer W being held in the heating chamber 4.

The invention discloses a method for preparing gold nanorods and belongs to the field of nano material preparing. The method includes the following steps that firstly, a mixed solution of quaternary ammonium bromide, oleate, chloroauric acid hydrated, silver nitrate, an acid solution and ascorbic acid is prepared, and a growth solution is obtained; secondly, in a cetyl trimethyl ammonium bromide surface modifying solution, strong reductant sodium borohydride is used for restoring the chloroauric acid hydrated to obtain a gold seed solution; thirdly, the gold seed solution is injected into the growth solution for reaction for 3-15 hours, and the gold nanorods are obtained. The method for preparing the gold nanorods has the advantages that the requirement for equipment is low, the method is easy to operate, conditions are gentle, reproducibility is high, and large-batch preparing can be conducted; the obtained gold nanorods are high in yield which can reach 99 percent or higher, consistency is high, the variable coefficient of length and the variable coefficient of width are within 10 percent, the length-diameter ratio can be regulated in the large range of 1.5-8, and a solid foundation is laid for practical use of the gold nanorods.

The invention provides a drilling device of a pre-drilling type lateral pressure test. The drilling device comprises a cutting ring soil miller, a spoon-type drill, a drill bit, a locator, drilling rods, outer rods, a connecting rod and a baffle. A hole forming method for carrying out the pre-drilling type lateral pressure test through the device comprises the steps that 1, an instrument is assembled, wherein the drill bit and the wall of the spoon-type drill are connected, the wall of the spoon-type drill is connected with the connecting rod, and the connecting rod is connected with the drilling rods; 2, drilling is carried out, wherein drilling is stopped when the locator is in contact with the ground surface, the center of the cutting ring soil miller is aligned to the locator to be vertically pressed into the underground, the baffle is arranged on the corresponding outer rod at the upper end of the cutting ring soil miller, and the cutting ring soil miller is vertically pressed into soil by pressing the baffle through the gravity of a drilling machine or hammering the baffle through a heavy hammer; 3, testing is carried out; and 4, drilling continues to be carried out, and the lateral pressure test of different depths in the same drilled hole is carried out. The device is simple in structure, detachable, convenient to manufacture and maintain, safe, stable, easy to operate, low in manufacturing cost, high in drilling speed and high in hole forming quality, the construction period can be remarkably shortened, and the adverse effect of hole collapse and hole shrinkage to the result of the lateral pressure test is eliminated.

The invention discloses a sampling method for original state sandy soil. The method comprises the following steps: assembling a force applicator, a sampling sleeve and a soil taking cutting edge; for the sandy soil to be sampled, cleaning a soil layer covered above the sandy soil; carrying out freezing treatment on a sandy oil area to be sampled to solidify sandy oil in the area; pressing a sampling device for the sandy soil into the soil layer through the force applicator until the whole sampling device is full of a soil sample; clearing a soil body around the sampling device for the sandy soil, and forming an annular empty slot around the sampling device; slightly shaking the sampling device for the sandy soil to separate the sandy soil on the bottom end of the sampling device from the sampling device, and taking the sampling device out of the soil body; disassembling the force applicator, removing the residual soil body on the top end of the sampling sleeve, and installing an upper sealing cover; and disassembling the soil taking cutting edge, removing the residual soil body on the bottom end of the sampling sleeve, and installing a lower sealing cover. The method has the advantages that sampled sandy soil is less disturbed and is unlikely to become loose, and the original state sandy soil can be conveniently sampled, packaged, transported and transferred.

The invention discloses a physical model testing device for simulating tunnel excavation and a method thereof, the physical model testing device comprises an arch frame, a main shaft tube, capsule bodies and strain gauges; wherein the main shaft tube is placed in an inner region of the arch frame, the inner region of the arch frame is separated into at least two parts by the main shaft tube, one part is a curved area which is on the upper side of a main shaft and is enclosed by the curved vault of the arch frame, and the other part is a square area which is on the lower side of the main shaftand enclosed by support walls at the two ends of the curved vault; the capsule bodies have two shapes, namely a curved capsule and a square capsule; the curved capsule is placed in the curved area, and the square capsule is placed in the square region; Each of the capsule bodies has an inlet hole and an outlet hole, and the inlet hole and the outlet hole of each of the capsule bodies are respectively equipped with a drainage tube; the outer side of the arch frame has the plurality of strain gauges for detecting the deformation of the arch frame; the physical model testing device can simulate indoor tunnel excavation, and provides a powerful testing tool for indoor model tests of geotechnical engineering.

The invention discloses an auxiliary test device specially used to study bending performance of small bars, the auxiliary test device includes a base with supporting function, both sides on the top of the base are provided with an I-shaped guide rails, load application mechanisms are arranged left-right symmetrically inside the guide rail on the upper part, bar clamping mechanisms are arranged left-right symmetrically at the middle of the guide rail, and vertical deflection measurement systems are arranged left-right symmetrically outside the guide rail; and the load application mechanisms and the bar clamping mechanisms can slide along the guide rail right and left. Advantages are that: 1) bars with different lengths, different heights of sections can be clamped, the bending performance of the small bars with different lengths, different heights of sections can be studied, and ideal fixed constraint can be formed at both ends of the bars; 2) a plurality of adjustable concentrated loads can be applied to any position in the upper end surface of a bending bar along the axial direction of the bending bar; 3) vertical deflection of multi points at any position in the upper end surface of the bending bar can be simultaneously detected by a vertical deflection measurement device along the axial direction of the bending bar.

Belonging to the technical field of biofilms, the invention discloses a multilayer fiber bundle biofilm purification device. The multilayer fiber bundle biofilm purification device comprises a purifier installed on a base, the bottom end of the purifier is fixedly connected to a hollow tapered flow guide body, fiber bundle biofilms are positioned and bound in the vertical direction through aeration pipes, thus effectively avoiding position deviation and mutual winding easily caused by aeration disturbance or water flow impact, meanwhile, a movable filter plate in contact with sewage is also sleeved to the aeration pipes, after the movable filter plate is pressed downwards, the densities of the filter layers of the fiber bundle biofilms increase gradually along the water flow direction, andthe pores of the corresponding filter layers are gradually reduced, thus realizing deep filtration, and after the filtration work is completed, the movable filter plate is reset upwards under the action of a traction reset mechanism, so that the fiber bundle biofilms can be reset upwards to be in a relaxed state again, and aeration treatment performed at the moment facilitates uniform diffusion of oxygen into the fiber bundle biofilms.

The invention relates to a geotechnical investigation sampling device for architectural design, and relates to the field of geotechnical investigation engineering.The geotechnical investigation sampling device comprises a sampling support and a supporting barrel fixed to the sampling support, a rotary drilling outer barrel is arranged on the supporting barrel in a penetrating mode, a sampling inner barrel is arranged in the rotary drilling outer barrel, and a sampling opening is formed in the bottom end of the sampling inner barrel; a sealing mechanism is arranged between the sampling inner cylinder and the rotary drill outer cylinder, the sealing mechanism comprises a mounting ring plate, a plurality of sealing blades and a driving assembly, the mounting ring plate is fixed on the sampling inner cylinder, the plurality of sealing blades are arranged along the circumferential direction of the mounting ring plate, and every two adjacent sealing blades are arranged at intervals in a staggered manner in the axial direction of the sampling inner cylinder; all the sealing slices are connected with the driving assembly, and the driving assembly is used for driving the sealing slices to rotate towards the sampling opening so as to seal the sampling opening. According to the soil sampling device, a soil sample is not easily disturbed during sampling, and when the soil sample is taken out, soil in the sampling inner cylinder is not easily disturbed by the outside, so that the pollution of the soil sample is reduced, and the accuracy of a subsequent test result is guaranteed.

The purpose of the present invention is to provide a structure of a rare-earth magnet having high coercivity. In order to solve the problem, a rare-earth magnet according to the present invention comprises sheets of elements bonded with each other through a covalent bond 100 and layers comprising a transition metal element 200 laminated with the sheet 100, wherein a rare earth element is arranged within a plane of the sheets.

The invention relates to an anti-skid tunnel structure and a construction method thereof. The anti-skid tunnel structure comprises a tunnel structure passing through a slip mass, wherein multiple upper connecting beams and lower connecting beams are respectively arranged on an arch apex and an inverted arch of the tunnel structure; multiple upper-side anti-skid piles and lower-side anti-skid pilesare respectively arranged on two sides of the tunnel structure; and the upper connecting beams and the lower connecting beams are fixedly connected with the upper-side anti-skid piles and the lower-side anti-skid piles. The construction method comprises the steps of (1) excavating a pile well at a pile position of a predetermined anti-skid pile, and constructing an anti-skid pile retaining wall;(2) pouring concrete on the anti-skid pile to the design height; (3) excavating a tunnel and constructing preliminary bracing; (4) implanting first connecting reinforcement steel bars onto the anti-skid piles, binding connecting beam reinforcement steel bars on the first connecting reinforcement steel bars, binding secondary lining inner reinforcement steel bars, arranging second connecting reinforcement steel bars along a trend direction of the tunnel structure, and connecting the connecting beam reinforcement steel bars and the secondary lining inner reinforcement steel bars through the second connecting reinforcement steel bars; and (5) pouring a secondary lining, the upper connecting beams and the lower connecting beams through a vertical formwork.

The invention provides a device for wirelessly measuring the whole-age humidity of a concrete panel and a use method. The device is characterized in that the device comprises an acquisition device, arelay routing device, and a receiving terminal device, wherein the acquisition device comprises a waterproof shell, and an acquisition circuit board and a battery which are arranged in the waterproofshell; a humidity sensor, an acquisition circuit, a wireless module and a power supply module which are connected in sequence are integrated on the acquisition circuit board; the power supply module is connected with the battery; a probe of the humidity sensor extends out of the waterproof shell, and the extending part of the probe is covered with an e-PTFE film and is in water-tight connection with the waterproof shell through an organic silicon sealant; the relay routing device comprises a wireless gain module and a routing module; and the receiving terminal device comprises a wireless receiving module. The device is ingenious in design, high in precision and good in stability, can monitor the internal humidity of the concrete panel for a long time in a high-humidity environment, and isnot easily disturbed by external conditions.

The invention discloses an anti-leakage connecting plate for steel bar truss floor support plates. The anti-leakage connecting plate comprises a main plate part (31), a first hook part (32) and a second hook part (33), wherein the first hook part (32) is connected with the first end of the main plate part (31) and used for being connected with a male buckle and a female buckle of the first steel bar truss floor support plate (1) in an attached mode, and the second hook part (33) is connected with the second end of the main plate part (31) and used for being connected with a male buckle and a female buckle of the second steel bar truss floor support plate (2) in an attached mode; and the included angle between the first hook part (32) and the main plate part (31) is equal to the bending angle of the male buckle and the female buckle of the first steel bar truss floor support plate (1), and the included angle between the second hook part (33) and the main plate part (31) is equal to thebending angle of the male buckle and the female buckle of the second steel bar truss floor support plate (2). The anti-leakage connecting plate is placed at the overlapped position of the steel bar truss floor support plates, and therefore the leakage phenomenon during concrete pouring can be effectively controlled.

The invention belongs to the technical field of water treatment, and particularly relates to an iron disulfide resin composite material and a preparation method and application thereof. The iron disulfide resin composite material comprises resin and iron disulfide distributed in pores of the resin, wherein the mass ratio of the iron disulfide to the resin is (0.1-0.2):1, and the particle size of the iron disulfide is 5-50 nm. The iron disulfide resin composite material provided by the invention is stable in physical and chemical properties, strong in anti-interference capability, high in adsorption capacity for heavy metals in water, and easy to separate. Meanwhile, the iron disulfide is distributed in pores of the resin, aggregation of the iron disulfide can be effectively avoided, the reaction activity is enhanced, and in addition, the composite material is easy to recycle and high in economical efficiency.

The invention discloses physical model test equipment and method for stimulating foundation pit excavation. The equipment comprises a model box, a lining component, a liquid bag and a gas bag, whereina model material is embedded into the model box; a foundation pit suitable for placing the lining component is formed in the upper surface of the model material; the lining component is concave, anda concave hole of the lining component is upwards formed in the foundation pit of the model box; the liquid bag is arranged in an inner cavity of the lining component, and the gas bag is arranged between the liquid bag and the lining component; the gas bag is of a concave structure, the shape of the outer edge of the gas bag is adaptive to the shape of the inner cavity of the lining component, andthe shape of the outer edge of the liquid bag is adaptive to the shape of the inner edge of the gas bag; when the liquid bag is filled up with liquid through a liquid inlet tube, the whole sunken space of the gas bag can be filled up; and when the gas bag is filled up with gas through a gas inlet tube, the whole gap between the liquid bag and the lining component can be uniformly filled up. The equipment can realize indoor foundation pit excavation stimulation, and provides a powerful test tool for a geotechnical engineering indoor model test.

The present disclosure relates to a lens assembly, comprising a lens module and a lens driving mechanism for driving the lens module to move relative to an image sensor, the lens driving mechanism comprising: a base fixedly mounted on the image sensor; a bearing structure which is used for mounting the lens module; a bearing structure which is mounted on the base in a sliding manner through the first sliding rail; a second sliding rail, wherein the extension direction of the second sliding rail is different from the extension direction of the first sliding rail, and the lens module is slidably mounted on the bearing structure through the second sliding rail; a first electromagnetic generating device which is used for generating electromagnetic induction and driving the bearing structure to move along the first sliding rail; and a second electromagnetic generating device which is used for generating electromagnetic induction to drive the lens module to move along the second sliding rail. The lens module always linearly moves along the slide rail and is supported by the slide rail, so that the lens module moves more stably and has higher movement precision, the optical axis of the lens is ensured not to deflect, and the imaging definition is improved.

The invention provides a concrete pavement early-age three-dimensional comprehensive slab warping shape monitoring device and a realization method thereof. The monitoring device comprises a concrete face slab. A cement stabilized base is arranged under the concrete face slab. The cement stabilized base is internally provided with a plurality of cylindrical concrete columns embedded in the upper surface of the cement stabilized base. Each cylindrical concrete column is internally provided with a vibrating-string strain sensor extending from the inside of the cylindrical concrete column to the concrete face slab. An isolation film for preventing vertical deformation of the cylindrical concrete columns and the cement stabilized base is arranged between the cement stabilized base and the concrete face slab. The concrete face slab is provided with 13 measuring points. Each measuring point is provided with a vibrating-string strain sensor. The monitoring device has simple structure, ingenious design, good stability and high precision.

The invention discloses a ballastless turnout point switch preformed groove size control device. The device comprises a track bed slab, a preformed groove template, turnout sleepers and steel rails, the turnout sleepers are arranged on the track bed slab, the steel rails are arranged on the turnout sleepers, the preformed groove template is arranged between the two turnout sleepers, the preformedgroove template is arranged in a through groove in the track bed slab, the preformed groove template comprises four sections, and the four sections of the preformed groove template are symmetrically distributed on the two sides of the track bed slab. The preformed groove formwork comprises two side plates and a bottom face plate, the two side plates are arranged on the turnout sleepers respectively, the bottoms of the side plates are bent to form bottom folded corners, and the two sides of the bottom face plate are movably connected with the bottom folded corners on the two side plates respectively. The invention further discloses a method for controlling the size of the preformed groove through the device, the vertical lead screws are fixed to the M16 nuts at the two ends of the bottom panel, the distance between the bottom panel and the bottom of the steel rail is adjusted through the vertical lead screws, and the direction of the drainage slope is adjusted through the vertical leadscrews. Not only are manpower and material resources saved, but also detection quality and detection efficiency are improved.

The invention discloses a physical model test equipment and method for simulating foundation pit excavation. The equipment comprises: a model box, an inner lining member, a liquid bag and an air bag. Model material is buried inside the model box, and the upper surface of the model material has a foundation pit with a size suitable for placing lining components; the lining component is set in a concave shape, and the notch is placed upward in the foundation pit of the model box; The bladder is placed in the inner cavity of the lining member, and there is an air bag between the liquid bag and the inner lining member; the air bag is in a concave structure, and the shape of the outer edge of the air bag is adapted to the shape of the inner cavity of the inner lining member, and the outer surface of the liquid bag The shape of the edge matches the shape of the inner edge of the airbag; when the liquid bag is filled with liquid through the liquid inlet pipe, it can fill the entire concave space of the airbag; when the airbag is filled with gas through the inlet pipe, it can evenly cover the liquid bag and the inner lining components the entire gap between. The device can realize indoor foundation pit excavation simulation and provide a powerful test tool for indoor model tests of geotechnical engineering.

The invention discloses an auxiliary test device specially used to study bending performance of small bars, the auxiliary test device includes a base with supporting function, both sides on the top of the base are provided with an I-shaped guide rails, load application mechanisms are arranged left-right symmetrically inside the guide rail on the upper part, bar clamping mechanisms are arranged left-right symmetrically at the middle of the guide rail, and vertical deflection measurement systems are arranged left-right symmetrically outside the guide rail; and the load application mechanisms and the bar clamping mechanisms can slide along the guide rail right and left. Advantages are that: 1) bars with different lengths, different heights of sections can be clamped, the bending performance of the small bars with different lengths, different heights of sections can be studied, and ideal fixed constraint can be formed at both ends of the bars; 2) a plurality of adjustable concentrated loads can be applied to any position in the upper end surface of a bending bar along the axial direction of the bending bar; 3) vertical deflection of multi points at any position in the upper end surface of the bending bar can be simultaneously detected by a vertical deflection measurement device along the axial direction of the bending bar.

The invention discloses a nuclear magnetic resonance test non-magnetized saturation test sample preparation device and a preparation method thereof, and belongs to the related field of geotechnical engineering indoor test devices. The device comprises a funnel device and a sample preparation-saturation tube. The funnel device is connected with the sample preparation-saturation tube in an overlapping manner; the sample preparation-saturation tube is made of a polytetrafluoroethylene transparent material with a scale on the side wall; the top of the sample preparation-saturation tube is providedwith a top permeable stone; a saturator hood reversely covers the top permeable stone and the upper part of the sample preparation-saturation tube; the bottom of the sample preparation-saturation tube is provided with a bottom permeable stone; the sample preparation-saturation tube and the bottom permeable stone are located inside a saturator base; clamping slots are formed in both the saturatorhood and the saturator base; a clamping belt is fastened in the clamping slots to fixedly connect the saturator hood, the top permeable stone, the sample preparation-saturation tube, the bottom permeable stone and the saturator base with one another. The device disclosed by the invention is simple in structure; the preparation method is easy to operate; the nuclear magnetic resonance test non-magnetized saturation test sample preparation device and the preparation method thereof are provided.

The invention relates to a float-process microalgae culture system. The float-process microalgae culture system comprises a culture unit, a buffering unit, a circulation unit and an aeration unit, wherein the culture unit comprises a plurality of flexible transparent cylinder bands which are arranged almost horizontally and are used for accommodating culture liquid and microalgae, a correspondingfirst base plate is arranged on the lower side of an inlet end of each flexible transparent cylinder band, a corresponding second base plate is arranged on the lower side of an output end of each flexible transparent cylinder band, the first base plates are higher than the second base plates, and disturbance devices are arranged between the first base plates and the second base plates; the buffering unit comprises a container, and the container is used for receiving the culture liquid and the microalgae which are discharged from the outlet ends of the flexible transparent cylinder bands; the circulation unit is used for transferring the culture liquid and the microalgae from the buffering unit to the inlet ends of the flexible transparent cylinder bands; and the aeration unit is used for inputting preset gas to the culture liquid.

The invention discloses a corner plate of a steel bar truss floor support plate and a cast-in-place concrete beam. The corner plate comprises a corner plate body (61) which is composed of a vertical plate and a transverse plate, and a hook portion (62) which is connected with one end of the corner plate body (61); the hook portion (62) can be buckled with a male-female buckle of the steel bar truss floor support plate (1); an included angle between the vertical plate and the transverse plate of the corner plate body (61) is equal to an included angle between the upper end surface and the sidewall of a beam side mold (4); and the vertical plate of the corner plate body (61) is fixed to the side wall of the beam side mold (4). By means of the corner plate of the steel bar truss floor support plate and the cast-in-place concrete beam, the problem that mortar leakage is prone to occurring at a joint between the steel bar truss floor support plate and the cast-in-place concrete beam duringconcrete pouring is effectively solved.

The invention provides a cast-in-place integrated heat insulation plate bolt hole plugging device and method. The plugging device comprises a shrinkable end plugging part and a grouting pipe. The endplugging part penetrates through a bolt hole when shrinking, and the end plugging part plugs one end of the bolt hole when unfolded. A first clamping structure is formed on one side of the end plugging part. A second clamping structure is arranged at the end of the grouting pipe, and the second clamping structure and the first clamping structure are matched and clamped. According to the cast-in-place integrated heat insulation plate bolt hole plugging device and method, the bolt hole can be plugged on the inner side of a wall at a major structure construction stage, and it is avoided that dueto the fact that the indwelling time of the bolt hole is too long, rainwater immerging is caused, and the heat insulation effect is influenced; and meanwhile the defects that aerial plugging is carried out on the outer side of the wall, and consequently the risk is high, the efficiency is low, and the cost is high are avoided.

The invention discloses a ballastless turnout switch machine reserved groove size control device, which comprises a ballast bed plate, a reserved groove template, a switch sleeper and a steel rail. The formwork is arranged between the two fork sleepers, and the formwork for the reserved groove is set in the through groove of the ballast bed slab. The formwork for the reserved groove includes four segments, and the four sections of the formwork for the reserved groove are symmetrically distributed on both sides of the ballast bed slab. The reserved groove formwork includes side panels and bottom panels. There are two side panels. on the bottom chamfer articulation. The invention also discloses a method for using the device to control the size of the reserved slot. Fix the vertical screw on the M16 nuts at both ends of the bottom panel, use the vertical screw to adjust the distance from the bottom panel to the bottom of the rail and use the vertical screw to Adjust the direction of the drainage slope. It not only saves manpower and material resources, but also improves the detection quality and detection efficiency.

The invention discloses a directly-pushed type heavy load lifting work platform. Multi-stage oil cylinder sets which are composed of common single-stage oil cylinders are used for achieving multi-stage lifting, the cost is lower than the cost of the structure of multi-stage oil cylinders, and maintaining is easy. At least four fall prevention devices which prevent a lift car from falling are symmetrically arranged on two sides of the lift car, sudden falling caused by oil cylinder failure is avoided, and the safety of the lifting work platform is improved. A plurality of multi-stage oil cylinder sets are symmetrically arranged on the two sides of the lift car, the multi-stage oil cylinder sets are composed of a plurality of single-stage oil cylinders, and the widths of the multi-stage oil cylinder sets increase stage by stage. A plurality of points of strength are arranged on the lift car, with the increase of the lifting height of the lift car, the points of strength are more dispersed and distributed evenly, and oil cylinder bearing force is even and not easy to disturb. The lift car is provided with lift car guide wheels, the multi-stage oil cylinder sets are provided with oil cylinder guide wheels, the disturbance of the oil cylinders is reduced, the lift car is made to be large in load, high in maximum lifting height and stable in lifting. The multi-stage oil cylinder sets are arranged, and lifting is guaranteed to be stable under the condition that the area of the lift car is larger.

The invention relates to the technical field of rapid conveying and detection of workpieces, in particular to a rapid heavy-load workpiece conveying device based on static pressure air floating and a detection method. The device comprises a load workpiece, a track arranged at the lower end of the load workpiece, as well as a power system, a suspension system and a detection system which are matched with the load workpiece, wherein the power system comprises a fixed table arranged on the side face of the load workpiece and a fuel gas actuator cylinder arranged on the fixed table, and the output end of the fuel gas actuator cylinder is connected to the load workpiece and used for providing side pushing force for the load workpiece to horizontally move on the track; the suspension system comprises an air cushion assembly, an air bottle matched with the air cushion assembly and a gradienter arranged on the upper end face of the load workpiece; and a master controller and a power supply device are arranged in match with the power system, the suspension system and the detection system. The device is low in cost, simple in structure and easy to operate, and is provided with displacement sensors with high precision and high linearity, so that the control progress of an experiment platform is greatly improved, and the device has relatively good popularization value and application prospect.

The invention discloses an artificial limb ankle, which comprises a regulating rod, a spherical hinge and a reset component, wherein one end of the regulating rod is connected with a shin bone in a relatively moving mode; the other end of the regulating rod is arranged on a foot bottom plate and used for connecting the shin bone with the foot bottom plate; the spherical hinge comprises a spherical bowl and a sphere which relatively rotates in the spherical bowl; the sphere is fixedly arranged in the middle of the regulating rod; the spherical bowl is fixed on the foot bottom plate through a spherical hinge bracket; the reset component comprises a shin bone damping torsion spring and a reset disk; the shin bone damping torsion spring is mounted on the regulating rod between the shin bone and the sphere in a sleeving manner; the reset disk is fixed on the foot bottom plate and mounted at the lower end of the regulating rod in a sleeving manner; and a restoring force is provided for multidirectional motion of the ankle joint by the reset component, so the ankle joint can automatically return. The four passive degrees of freedom of the artificial limb ankle joint are realized by the spherical hinge structure, and the restoring force is provided for the rotating degree of freedom by the shin bone damping torsion spring and a reset spring group, so that the ankle joint maintains stable when the artificial limb is in the support phase, and the ankle joint has damping and buffering functions.