723 results about "Rigid structure" patented technology

Hanging tool storage devices, shown as tool boards are provided. In some embodiments, the tool board includes a base and a plurality of pocket panels adjustably coupled to various locations of the base. In certain embodiments, the base includes a plurality of base members that releasably couple to one another to form different base shapes and sizes. In other specific embodiments, the pocket panels are rigid and modularly connect to one another to form a rigid structure.

A rigidizing device includes an elongate flexible tube, a braid layer positioned over the elongate flexible tube, an outer layer over the flexible tube and the braid layer, and an inlet between the elongate flexible tube and the outer layer and configured to attach to a source of vacuum or pressure. The braid layer has a plurality of strands braided together at a braid angle of 5-40 degrees relative to a longitudinal axis of the elongate flexible tube when the elongate flexible tube is straight. The rigidizing device is configured to have a rigid configuration when vacuum or pressure is applied through the inlet and a flexible configuration when vacuum or pressure is not applied through the inlet. The braid angle is configured to change as the rigidizing device bends when the rigidizing device is in the flexible configuration.

The derrick type continuous oil pipe integrated sidetrack drilling operation device is provided with a base, a derrick, an injection head installation support, an injection head, a lifting oil cylinder, a hydraulic clamp and a remote operation room, one side of the derrick is fully opened, the derrick and the base are both of a lightweight rigid structure, and the injection head is installed at the top of the derrick for remote control. After the base is arranged at a wellhead and is unfolded and installed, one side of the base is connected with the lifting oil cylinder, the other side of the base is in butt joint with the ramp and the pipe rack, the derrick is rapidly erected through the lifting oil cylinder, and after the injection head is hoisted to the top of the derrick, the injection head is rapidly installed and subjected to alignment adjustment through the injection head installation support and the adjusting structure. Meanwhile, the tool rod and the elevator are arranged at the injection head, the tool rod is pulled and placed through the injection head, an oil pipe column and a sucker rod can be independently lifted or lowered, the oil pipe column and the sucker rod are pushed into a ramp from one side of an opening of a derrick, integrated sidetrack drilling operation of the coiled tubing is achieved, and sidetrack drilling efficiency and operation safety of the coiled tubing are remarkably improved.

The invention relates to the technical field of petroleum engineering downhole tools and hydraulic anchor equipment, in particular to an anchoring pressure adjustable hydraulic anchor which comprises a body with a spherical mounting cavity, a plurality of groups of elastic anchor flukes, a universal cylinder core and a flexible diaphragm. A hydraulic cavity is formed in the universal cylinder core, a flexible diaphragm is fixed to the outer side, and the elastic anchor flukes are driven through hydraulic through holes. Under hydraulic driving, the flexible diaphragm expands to push the elastic anchor flukes to stretch out to achieve anchoring. And the universal cylinder core allows angular deflection, so that the adaptability to a bent or irregular shaft is enhanced. The flexible belt is connected with the universal cylinder core and the body to adapt to deviation, and the limiting ring is arranged to prevent excessive expansion from affecting work. The upper connecting cylinder and the body are detachably connected in a sealed mode, and maintenance is convenient. By means of the design, the problem that a traditional rigid structure hydraulic anchor is poor in angle self-adaptive capacity under complex geological conditions is solved, anchoring stability and environmental adaptability are improved, and the hydraulic anchor is suitable for various complex underground conditions.

An assembly including a profiled sail, a mast and several cambering devices for the profiled sail. The cambering devices including a semi-rigid structure, elastically deformable, including two length sections, extending in front of one another, forming respectively a first length section secured to a first surface of the profiled sail and a second length section secured to a second surface of the profiled sail, a U-shaped connecting section, interconnecting the first length section and the second length section while extending them. A system reduces the surface area of the profiled sail exposed to the wind, and configured to reduce the surface area of the profiled sail including several sections of the profiled sail as well as structural cambering devices.

The present application is drawn to a system and method, as well as method for manufacture of a device and system for determining the position and orientation of at least one magnetic field sensor comprising: a rigid structure comprising an array of at least five electromagnetic coils; at least one wire that connects to and powers the electromagnetic coils; wherein the placement and orientation of the electromagnetic coils on the rigid structure are predetermined; wherein the electromagnetic coils, each having a predefined magnetic moment per unit current, are constructed with a printed circuit board (PCB) comprising at least one conductive layer; and wherein the system is configured such that a stray magnetic field emanating from the at least one, as measured at the location of the at least one magnetic field sensor, generates substantially lower magnetic field intensity than that produced by each of the at least five electromagnetic coils.

The invention discloses a deformation and bearing integrated modular rope-driven flexible mechanical arm and a self-sensing method thereof.The flexible mechanical arm comprises a driving mechanism and a variable-rigidity flexible mechanical arm body, the variable-rigidity flexible mechanical arm body comprises a rope, a corrugated pipe and elastic units, and the multiple elastic units are filled in an inner cavity of the corrugated pipe; the corrugated pipe is provided with a rope guide hole extending in the axial direction of the corrugated pipe, one end of the rope is fixedly connected with the power output end of the driving mechanism, the other end of the rope penetrates through the rope guide hole and is fixedly connected with the corrugated pipe, and when the driving mechanism works, the rope can be driven to move, and then the mechanical arm is pulled to deform. The flexibility of the mechanical arm is improved through fusion of active deformation and a bearing function, additional rigid structure supporting is not needed, and the overall design is simplified; and the bearing capacity and rigidity are adaptively improved through blocking of the elastic units, and the complexity of the driving system is reduced. Meanwhile, the mechanical arm is provided with a self-sensing system, the state of the mechanical arm can be monitored in real time, and the control precision is improved.

The invention relates to the field of electric vehicle design, in particular to an electric vehicle charging port area design method and system, which comprises the following steps: selecting a body-in-white structure unit corresponding to a charging port area, and arranging a rigid structure on the body-in-white structure unit corresponding to the charging port; loading force generated when the charging gun is inserted into and pulled out of the charging port is obtained and applied to the rigid structure, and stress deformation displacement between the rigid structure and the body-in-white structural unit and the residual deformation value of the body-in-white structural unit are recorded so that the structural design of the charging port area can be updated. The charging port is simulated by the rigid structure, the charging port area is simulated by the body-in-white structure unit, the loading force is applied to the rigid structure, the plugging of the charging gun on the charging port is simulated, and the stress deformation displacement and the residual deformation value between the rigid structure and the body-in-white structure unit are calculated. The relative displacement and plastic deformation of the charging port area are analyzed, whether the current structural design is reasonable or not is analyzed, and scientific basis and analysis are provided for the structural design of the charging port area.

The invention discloses a rigid frame continuous beam bridge construction monitoring method based on digital twinning. The rigid frame continuous beam bridge construction monitoring method comprises the steps that S1, a construction simulation model of a continuous beam bridge is established; s2, establishing a construction site three-dimensional environment model; s3, fusing the three-dimensional environment model and the construction simulation model to obtain a construction dynamic virtual model; s4, establishing a continuous beam bridge construction structure analysis and calculation model; s5, training the continuous beam bridge construction structure analysis and calculation model by using the construction structure information obtained in real time to obtain a prediction model; s6, acquiring three-dimensional point cloud data of the continuous beam bridge in real time, and establishing a three-dimensional point cloud model; s7, fusing the prediction model, the three-dimensional point cloud model and the construction dynamic virtual model to obtain a continuous beam bridge digital twinborn model; and S8, according to the digital twin model of the continuous beam bridge, checking construction monitoring data in real time, and realizing construction monitoring operation of the continuous beam bridge. According to the rigid frame continuous beam bridge construction monitoring method based on digital twinning, the construction quality can be improved, and the construction safety is guaranteed.

The present disclosure provides a camera calibration method based on vehicle localization, mainly considering that a vehicle is not of an ideal rigid structure, and shaking of a vehicle body during operation, uneven road surfaces, or different loads will cause variations in extrinsic parameters of a camera system, resulting in perceptual information errors. Therefore, through perceptual information from a fused image, an inertial measurement unit, a speedometer, and the like, combined with the road and marking information provided by a high-definition map, the relative motion between the vehicle body and a vehicle chassis is simultaneously described with a mass-spring-damper model, so as to complete the determination of six-degree-of-freedom positions of the vehicle body and the vehicle chassis, and finally the extrinsic parameters of cameras are immediately calibrated with the vehicle chassis as reference coordinates.

The invention discloses a 3D packaging structure and a manufacturing method thereof, and the method employs a glass wafer as a first carrier plate, and solves the problems of reliability and signal interference caused by the mismatching of thermal expansion coefficients of an organic material adapter plate and a Si-based silicon bridge chip. In S1, a blind hole is etched by taking a glass wafer as a base material, and Cu is metallized and filled, and the thermal expansion coefficient of glass is similar to that of a silicon bridge, so that the risk of thermal stress deformation is reduced. And S2, through groove etching, temporary carrier plate bonding and thinning, a through groove hole is formed, and the rigid structure of the glass carrier plate maintains the stability of the packaging structure during high-density integration. And S3, the silicon bridge Die is embedded into the through groove hole, the low thermal expansion characteristic of the glass is well matched with the silicon bridge, the interface stress is reduced, the dielectric property of the glass support plate is excellent, the signal dielectric loss is reduced, and the signal integrity is improved by matching with the silicon bridge Die. And S4, after the functional chip is mounted on the adapter plate, the glass-based adapter plate ensures reliable connection, signal attenuation distortion is inhibited, and a reliable packaging scheme is provided for high-density integration.

Cambering device for a profiled sail including: —an elastically deformable semi-rigid structure, including: —two length sections, extending one in front of the other, forming respectively a first length section secured to a first surface of the profiled sail, and a second length section secured to a second surface of the profiled sail, —a U-shaped connecting section, connecting together the two length sections terminating at the trailing edge by a tensioning of one of the two free ends, —a spacing system configured for working in compression and in tension, for maintaining a separation between the two length sections, —the action of the actuator, connecting together the two free ends of the semi-rigid structure.

The invention relates to high-speed intelligent power pay-off equipment, which belongs to the technical field of cable manufacturing, and comprises a rack, a protective cover, a tension detection device, a wire coil allowance detection device, a power device, a clamping device, a lifting device and a control module, the rack is of an integral rigid structure and forms an installation foundation of the equipment, the protective cover is installed on the rack to form a safety protection space, and the tension detection device is connected with the power device. The tension detection device is arranged in the rack and used for detecting the tension of a cable in real time and outputting a first signal, and the wire coil allowance detection device is arranged on the rack and used for detecting the winding radius or allowance of a wire coil in real time and outputting a second signal. In the invention, through a double-signal fusion intelligent control strategy of tension closed-loop feedback and allowance change feedforward, and in cooperation with a high-rigidity rack, a lateral jacking clamping subsystem and an automatic lubricating subsystem, the problems of large tension fluctuation, unstable speed, poor universality and high maintenance cost of traditional pay-off equipment are fundamentally solved; and high-speed, high-precision and high-stability intelligent paying-off is realized.

The invention belongs to the technical field of satellite-borne optical remote sensing imaging, and relates to a multi-point flexible adhesive supporting structure of a large-aperture satellite-borne rectangular lens group and an integration method. The supporting structure comprises a rectangular mirror body, an integrated rectangular mirror frame and an anti-radiation back plate; the rectangular mirror body is embedded into the integrated rectangular mirror frame; the integrated rectangular mirror frame is detachably connected with the anti-radiation back plate; bonding ring assemblies are mounted on the periphery of the integrated rectangular mirror frame, and the four side faces of the periphery of the rectangular mirror body are fixedly connected with the bonding ring assemblies in a bonding mode; the lower side bonding ring assembly and the upper side bonding ring assembly are matched in a one-rigid-one-flexible mode, and the right side bonding ring assembly and the left side bonding ring assembly are matched in a one-rigid-one-flexible mode. And the one-rigid and one-flexible matching form is that one component adopts a rigid structure, and the other component adopts a flexible structure. The problems of high surface shape precision microstress, high stability, space radiation resistance, universality of a supporting structure and the like of an existing satellite-borne rectangular mirror body are solved.

The utility model relates to a truss type large-blade wind-solar power generation device, which adopts a single truss as a supporting force arm to fix fan blades and transmit torque to a shell rotor large pinwheel to construct a wind wheel, and the whole structure is a rigid structure, good in stability and small in generated vibration and noise. The diameter of the vertical wind driven generator can be oversized, so that the single-layer generating capacity is improved; the suspension type wind wheel is light in weight and small in friction force when the wind wheel operates; the installation is convenient, and the production cost is reduced; when wind exists, wind power is gathered through the wind gathering cyclone, wind coming from any direction is gathered to one side to form thrust, and resistance of the rotation side is reduced. And the power generation glass cyclone plates are arranged on the cyclone tower frame, so that wind collection and wind gathering can be realized, and solar power generation can also be carried out. The device is high in power generation rate, safe and reliable in operation, easy to install and maintain, long in service life, low in noise and low in power generation cost.

The utility model discloses a rigid structure removing device for a photovoltaic module, which comprises a transmission mechanism, a guide mechanism and a material pressing mechanism, and a conveying surface for conveying materials is formed on the top surface of the transmission mechanism; a bearing surface corresponding to the discharging end of the conveying surface is formed at the top of the guide mechanism, and an inclined angle with a downward boundary is formed on the bearing surface relative to the conveying surface; the material pressing mechanism comprises a first material pressing part and a second material pressing part, a first material pressing part of the first material pressing part is parallel to the conveying surface and can move relative to the conveying surface, and a second material pressing part of the second material pressing part is parallel to the bearing surface and can move relative to the bearing surface; according to the scheme, rigid structures such as tempered glass and silicon of the photovoltaic module can be removed with low energy consumption and high efficiency, the structural integrity of an organic module (a PET backboard PVF film) can be kept, the obtained broken materials are broken glass, and glass, metal and PVF materials are convenient to separate in the subsequent unsealing process.

A propulsion assembly for an aircraft, the propulsion assembly having a jet engine having a fan casing and a central casing around a longitudinal axis and having a vertical median plane passing through the longitudinal axis, an attachment pylon having a rigid structure that takes the form of a box that has a front wall and an upper spar extending forwardly in respect to the front wall, a front engine attachment fixed between an upper area of the central casing and a lower end of the front wall, and a complementary front engine attachment fixed between an upper area of the fan casing and a front end of the upper spar.

The utility model discloses a collision detection device used for evaluating the obstacle identification capability of an intelligent mobile robot, which comprises a bottom plate, guardrails, a base frame, a simulation obstacle, a rigid structure cylinder, a force sensor and a camera, the bottom plate is provided with two guardrails to form a test area, the front part of the test area is provided with an initial test point of a detected robot, and the front part of the test area is provided with an initial test point of the detected robot. A base frame and a simulation obstacle are arranged on the rear portion of the testing area, the base frame is constructed to be of a frame type structure to form an avoiding outlet, a guide rail groove is formed in the simulation obstacle, a rigid structure cylinder is fixedly connected to the front portion of the force sensor, and a graduated scale parallel to a guardrail is installed on the bottom plate with the position where the rigid structure cylinder is located as a starting point. And a camera is arranged right above the rigid structure cylinder and is mounted on the base frame. According to the utility model, the minimum stopping distance when the mobile robot encounters an obstacle, the retreating distance when the mobile robot encounters the obstacle, and the collision force when the mobile robot encounters the obstacle can be detected.

A system of non-parallel folding planar cross-braces are adapted to naturally fold away from one another to provide a naturally rigid structure that requires little or no latching to provide a stable frame. An interlocking system that engages opposing pivot points of the cross-braces can be arranged to create a very rigidly connected frame. A variation of the system may allow for both a sling seat and an open frame for attached seating to utilize the opposing planar cross-braces.

The utility model discloses a suspension structure for indoor decoration, which relates to the technical field of indoor decoration and comprises a connecting rod. The number of the connecting rods is four, and the outer walls of the four connecting rods are all in threaded connection with L-shaped fixing frames. And the reinforcing assembly is used for reinforcing the stability of the top space of the building. The limiting plates are of rigid structures, the two limiting plates are oppositely connected to the inner side wall of the L-shaped fixing frame in an inserted mode, the L-shaped fixing frame is of an L-shaped structure, and the spherical bases used for connecting the limiting plates and the L-shaped fixing frame are fixedly arranged on the inner side wall of the L-shaped fixing frame. After the spherical seat is inserted into the limiting groove, the L-shaped fixing frame can slide on the side face of the limiting plate, the distance between the L-shaped fixing frame and the limiting plate is freely adjusted, the reinforcing assembly is matched with the connecting rod and the L-shaped fixing frame, the strength of an indoor roof is enhanced, and the phenomenon that a ceiling is uneven due to deformation caused by uneven stress when a keel is supported is avoided; and the aesthetic property and the safety of the indoor space are influenced.

The invention discloses an outer-rigid and inner-flexible stadium annular roof structure system and a construction method thereof. The system comprises an outer rigid structure and an inner flexible structure. The peripheral rigid structure comprises supporting columns, V-shaped supporting pieces and a grid frame. The supporting columns are radially distributed on the outer ring of the annular roof structure around the center of the annular roof structure. The V-shaped supporting pieces correspond to the supporting columns one to one and are located on the inner sides, opposite to the supporting columns, of the roof structure. The grid frame is fixed to the top ends of the supporting columns and the V-shaped supporting pieces. The inner flexible structure comprises an annular cable and a radial cable; the ring cable is arranged on an inner ring of the roof structure; one end of the radial cable is fixed with the V-shaped supporting piece, and the other end is fixed with the ring cable. A giant outer pressing ring form of a traditional cable bearing structure is abandoned, the peripheral rigid structure and the inner surrounding flexible structure are combined, the rigidity of the peripheral rigid structure is used as a support of the flexible structure, the stress mode of the grid frame structure is improved, the rigidity of the inner surrounding cable structure is improved, and the steel consumption of the peripheral rigid structure is reduced.

The invention provides a YOLO-based aviation product assembly component instance segmentation system, which is characterized in that an improved SAC-YOLO model based on a YOLOv11 algorithm is used, an MSECA module is connected between an SPPF module and a C2PSA module in a backbone network of the SAC-YOLO model, and convolution in a C3k2 module is WTConv convolution; the convolution in the C3k2 module in the neck network is a DSConv convolution; therefore, the SAC-YOLO adopts the technologies of multi-scale feature fusion, special-shaped convolution, attention mechanism and the like, so that the detail features of the complex structure in the assembly scene can be more effectively captured; when the trained segmentation model is used for processing assembly elements with large form difference and slender and tortuous non-rigid structures such as a locking piece and the like observed from the front face and the side face, high segmentation precision can be kept; that is to say, the positioning precision of identifying the assembly component and the locking point is higher, the morphological characteristics of the assembly component and the locking point can be obtained, and the identification and segmentation of the components such as the parts and the locking point of the aviation assembly can be completed.

The invention discloses an insulating flame-retardant cable structure which comprises a cable core and an external protection tube wrapping the cable core. The external protection pipe comprises a plurality of rigid protection pipe units, flexible fireproof hinge pieces connected between the adjacent rigid protection pipe units and external connection sleeves wrapping the rigid protection pipe units and the flexible fireproof hinge pieces, and the rigid protection pipe units and the flexible fireproof hinge pieces are alternately connected in series to form a bendable structure. Through a composite structure formed by alternately connecting the rigid protection pipe units and the flexible fireproof hinge pieces in series, compared with an integral armored cable, the scheme has the advantages that excellent bendability is obtained while a high fireproof grade is kept, and the defect that a rigid structure is difficult to lay is thoroughly overcome. Compared with a pure flexible flame-retardant cable, the structural fire-resistant complete type under flame is realized through the segmented rigid-flexible composite structure, and the fatal weakness that a single polymer sheath shrinks, melts and cracks when encountering fire so as to cause defensive line collapse is avoided.

The invention discloses a composite board bonding strength detection device and detection method, and relates to the technical field of bonding strength detection. Comprising a base and a rack fixedly connected to the upper end of the base, first sliding grooves are formed in the inner side of the rack, a cross beam is fixedly connected between the first sliding grooves, a dynamometer is fixedly connected to the lower end of the cross beam, connecting bases are fixedly connected to the lower end of the dynamometer and the upper end of the base, and clamps are arranged at the ends, close to each other, of the connecting bases; the first-stage braking assembly is arranged in the first sliding groove, located between the upper end of the cross beam and the top of the rack and used for counteracting movement inertia of the cross beam; when instantaneous force is applied to the non-Newtonian fluid through the piston disc, the non-Newtonian fluid is rapidly gathered to form a rigid structure to improve the hardness, so that the displacement of the piston disc is prevented, the cross beam is prevented from continuously displacing when being subjected to inertia, the position fluctuation of the cross beam caused by inertia is reduced, the occurrence probability of overshoot reading and return stroke reading is reduced, and the accuracy of measurement is improved. And the accuracy of detection data is improved.

An audio-enhanced furniture system comprises: a furniture assembly having a partially acoustically transparent material, such as an upholstery fabric or a perforated, rigid structure that is perforated in order to be more acoustically transparent; and a speaker system positioned within the furniture assembly, the speaker system including a speaker covered by the partially acoustically transparent material. The speaker is configured to be tuned to compensate for sound being emitted from the speaker through the perforated partially acoustically transparent material.

The utility model discloses a functional gradient principle-based prefabricated combined type anti-collision guardrail, which belongs to the technical field of guardrails, and comprises a bridge deck concrete pavement, a beam plate and a body, one end of the body is connected with an embedded steel bar of the beam plate, the bridge deck concrete pavement is paved on the beam plate, and the beam plate is arranged on the body. The body comprises an anti-cracking and anti-collapse layer, a buffer energy consumption layer and a rigid structure layer which are sequentially arranged from inside to outside on the collision face; wherein the overhanging steel bars of the rigid structure layer are connected with the embedded steel bars of the beam plate. The layered functional gradient type structural design can effectively absorb vehicle collision energy, reduce casualties and reduce bridge structural damage, meanwhile, the layered design is beneficial to later maintenance and replacement, and low-carbon and environment-friendly effects are achieved.

The invention relates to the technical field of line defect identification, and discloses an overhead line defect intelligent identification and positioning system, which comprises a span reference system construction module for constructing a span reference system; the catenary fitting module is used for fitting a catenary curve; the wire temperature inversion module is used for obtaining the real temperature of the surface of the wire through inversion; the temperature-induced sag expectation calculation module is used for carrying out iterative solution to obtain temperature-induced sag expectation; the candidate position scanning module is used for scanning to obtain a candidate position set; and the defect positioning module is used for generating a positioning coordinate in the span reference system when the transverse and vertical displacement ratio of the candidate position is greater than or equal to the lead defect threshold value. According to the method, the real temperature of the surface of the wire is inversed, the temperature-caused sag expectation is constructed, the influence of the temperature on the sag is corrected, the normal sag change caused by the temperature is prevented from being misjudged as a defect or missed detection of a real defect is avoided, a noise reference is established by a tower cross arm and other rigid structures, the defect is judged in combination with physical noise, and the defect recognition accuracy is improved.

The invention relates to the technical field of stratified rock mass numerical simulation, and discloses a stratified rock mass numerical simulation method based on a hybrid progressive failure model, and the method comprises the steps: obtaining an engineering rock mass structural plane of a research area, and grading geological structural planes such as faults, rock veins and fractures of surrounding rock of an underground cavity based on structural plane features; through three-dimensional laser scanning, obtaining the spatial three-dimensional coordinates of each sampling point on the surface of the footrill, obtaining the point cloud of a measured object, and connecting adjacent discrete points; carrying out secondary sampling on the spliced point cloud data, carrying out plane fitting to obtain a structural plane occurrence, and constructing a footrill simulation model; analyzing the occurrence of the structural surface by the footrill simulation model to obtain a stratified rock mass value, and dividing the structural surface in the rock mass into a rigid structural surface and a weak structural surface according to the character, weathering degree, tightness degree and filler condition; and outputting the data to a cloud platform. According to the invention, manual intervention is reduced, and the safety, accuracy and efficiency of measurement are improved.

The invention belongs to the technical field of action recognition, and particularly relates to an electric power engineering construction safety early warning method and system, and the method comprises the steps: carrying out the threshold segmentation and Hough straight line detection of a monitoring image of an electric power engineering construction site, obtaining a rigid support structure set, obtaining a scene instantaneous motion potential index according to the optical flow vector of a visible key point, and carrying out the calculation of the scene instantaneous motion potential index. Constructing a human body and rigid structure interaction stability index in combination with the distance between a visible key point in the possible contact set and the rigid support structure, calculating a posture risk bias factor, complementing the key point by using a graph convolutional network, and correcting a preliminary complete posture estimation result according to the posture risk bias factor and a vector representing gravity influence, so as to obtain a posture estimation result. And determining the position of the human body centroid key point according to the correction result for calculating the vertical acceleration of the human body centroid key point and performing personnel falling risk judgment. According to the method, the problem that the graph convolutional network model generates the pseudo-true attitude under the shielding of the key points is solved.

The invention provides an air leakage amount adjusting device for an air leakage type injection barrel, relates to an injection barrel device, and aims to solve the technical problems that when vibration occurs during engine test run or large errors occur during engine maximum circle size machining and assembling, the adjusting capacity of an existing device is insufficient, and damage is caused by too large engine test run run-out amount. The device comprises a mounting frame, a supporting check ring and a U-shaped adjusting plate. And the mounting holes are fixedly connected with the mounting frame at the inlet of the injection cylinder, so that a rigid structure foundation is built for the U-shaped adjusting plate. The U-shaped adjusting plate is in an arc shape, kidney-shaped adjusting holes are formed in the two ends of the first side plate respectively, the length directions of the adjusting holes are arranged in the radial direction, and a radial moving space is provided for the U-shaped adjusting plate. The U-shaped adjusting plate moves in the radial direction, so that the gap between the inner barrel wall of the injection barrel and the outer wall of the engine jet pipe is adjusted, and the problem that an existing device is insufficient in adjusting capacity is solved.