18results about How to "Prevent dislocation" patented technology

This invention discloses an industrial material inspection method and system based on feature extraction and contrast enhancement, belonging to the field of image inspection technology. It includes: S1, acquiring the transmitted signal using a digital flat panel detector and generating an original digital image based on the differences in X-ray absorption by different materials or defects; S2, performing uniformity correction and normalization enhancement on the original digital image, and achieving preliminary differentiation of different material regions; S3, dividing the original image data into processing domains based on the preliminary differentiation results, and performing differentiated enhancement processing based on the local feature attributes of each processing domain to generate a binary feature image. By integrating X-ray penetration imaging, multi-dimensional image enhancement, and a deep learning-driven intelligent rating system, this invention fundamentally solves the key technical bottlenecks in traditional industrial material inspection, such as inconsistent image quality, lack of material identification, and strong subjectivity in rating, achieving an automated, intelligent, and objective upgrade in industrial material defect detection.

The utility model discloses a bending device for aluminum profile machining, relates to the field of aluminum profile machining, and aims to solve the problem that the angle or radian of a pipe deviates from expectation due to the fact that the PU rod rebounds after the pipe is taken down when the PU rod is used for supporting the inner wall of the pipe in an existing bending device. According to the technical scheme, the aluminum pipe bending device is characterized by comprising a base, a lower die is fixedly connected to the base, an aluminum pipe is placed on the lower die, a plurality of electric push rods are fixedly connected to the two sides of the base, an upper die is fixedly connected to the electric push rods, and a protection assembly used for preventing the interior of the aluminum pipe from being excessively twisted is arranged in the aluminum pipe; the lower die is provided with a limiting assembly used for limiting the aluminum pipe. According to the bending device for aluminum profile machining, when an aluminum pipe is bent, the situation that the bent position of the aluminum pipe is shrunken and deformed when the aluminum pipe is bent can be avoided in the mode that the protection assembly is plugged into the aluminum pipe.

This utility model relates to the field of valve pressure testing technology and discloses a pressure testing device for ball valve testing. The device includes a base, a testing component on the top of the base, a ball valve body on the top of the base, and a clamping component on the top of the base. In this device, the outer wall of a conical sleeve is interference-fitted with the ball valve body to achieve installation. The conical sleeve has a self-centering function; its conical outer contour guides the ball valve to automatically center and align, eliminating manual alignment and repeated adjustments, significantly improving clamping efficiency before pressure testing. It automatically adapts to pipes with different inner diameters, allowing the device to accommodate welded or flanged ball valves. The support rod abuts against the bottom of the ball valve body, providing vertical upward support and preventing the ball valve from sliding or dislodging due to water or air pressure impact during pressure testing, thus improving clamping accuracy and structural stability.

The invention discloses a multidirectional core-pulling automobile door panel mold, relates to the technical field of injection molding molds, and aims to solve the technical problem that in the prior art, core-pulling and demolding are difficult due to the fact that internal inverted buckles exist in drum-shaped and other special-shaped mounting holes, and the multidirectional core-pulling automobile door panel mold comprises an automobile door panel injection mold body, a static mold body and a movable mold body. And the static mold and the movable mold are closed to form an injection molding cavity. The multidirectional core-pulling automobile door panel mold disclosed by the invention has the beneficial effects that the composite core mechanism formed by alternately splicing the inclined panels and the flat panels which can stretch out and draw back in the radial direction is arranged in the mold closing cavity of the static mold and the movable mold, so that one-time high-precision forming and lossless demolding of complex special-shaped mounting holes in an automobile door panel are realized; a series of technical problems that in the prior art, due to the fact that a traditional core-pulling mechanism cannot process a complex hole structure with the middle diameter larger than the end opening diameter or with an internal step, demolding interference, product strain, flash, difficulty in guaranteeing size precision and the like are caused are solved.

A double seal ring connector comprises: a first elastic seal ring; a second elastic seal ring partially embedded in the first elastic seal ring; characterized in that the double seal ring connector comprises a receiving part and an insertion part; the shape of the insertion part corresponds to the receiving part and is fitted into the receiving part; the insertion part comprises a joint, a connecting rod and a locking boss; the connecting rod extends in a radial direction, an axial direction or a circumferential direction; the joint is arranged at the end of the connecting rod and is mirror symmetric along its symmetry axis; the locking boss is arranged on both sides of the connecting rod and is spaced a distance from the connecting rod; the locking boss extends in the same direction as the connecting rod, and the length of the locking boss in the extension direction is less than 2 / 3 of the sum of the lengths of the joint and the connecting rod in the extension direction of the connecting rod.

The invention belongs to the technical field of wear resistance testing, and particularly relates to a wear resistance testing device and method for a luggage pull rod. Comprising a test box; a notch is formed in the test box; a box body is placed in the test box; the box body is positioned in the notch; a pull rod is slidably arranged on the side of the box; a position control clamping unit is arranged on the test box; the position control clamping unit comprises a first base; the two first bases are both mounted at the bottom of the test box; the two ends of the position control lead screw are connected to the opposite faces of the two first bases correspondingly. Two thread areas are symmetrically arranged on the position control screw rod; the thread directions of the two thread areas are opposite; the double-action testing device is arranged on the testing box; the double-action testing device comprises a limiting chute which is arranged at the bottom of the testing box in a penetrating manner; the limiting chute extends to the inner bottom surface of the test box; the pull rod can be smoothly pulled by the device, the device is prevented from being clamped due to the self-locking function of the device in the testing process, the testing effect and efficiency of the device are improved, and the limitation of the device in practical application is reduced.

The utility model relates to the technical field of electronic control devices, and relates to a connecting assembly and a relay. The connecting assembly comprises an armature support, wherein the armature support comprises a body part and a connecting part; the pushing card comprises a first part and a second part, the first part is used for being connected with the contact assembly, and the second part is located on one side of the first part in the first direction; the second part is provided with an inserting groove with a notch located in one side of the second part in the second direction, and the second direction is parallel to the rotating axis of the body part. At least part of one end of the connecting part in the second direction is inserted into the inserting groove, and a limiting groove is formed in the other end of the connecting part in the second direction; a notch of the limiting groove is opposite to a notch of the inserting groove, at least part of the pushing card is located in the limiting groove, and the limiting groove is at least used for limiting the maximum displacement of the pushing card in the third direction. By optimizing the structure of the connecting assembly, the assembling difficulty of the armature support and the pushing clamp can be reduced, and the reliability of the connecting relation can be improved.

The application discloses a kind of MOCVD preparation method and device of wafer level single crystal molybdenum disulfide;The preparation method uses six carbonyl molybdenum Mo (CO) 6 and liquid carbon disulfide CS2 as molybdenum source and sulfur source respectively, different from traditional MOCVD growth process, precursor used in the application does not contain hydrogen element, avoid the side effect caused by hydrogen element, and increase the pre-reaction of source cracking, by introducing oxygen, generate intermediate product molybdenum trioxide (MoO3) and sulfur element (S) in pre-reaction chamber, to the reaction chamber on the substrate surface deposition, effectively avoid the introduction of carbon impurities, realize the nucleation and epitaxial growth of single crystal orientation on the substrate surface, obtain high uniformity and continuity single crystal molybdenum disulfide film, realize 6 inch and above size single crystal wafer scale preparation, meet the key needs of high density, high performance electronic device integration.

The utility model relates to the technical field of plastic parts, in particular to a fixing device for plastic part spraying, which comprises a positioning bottom box, a support base, a screen frame seat and a positioning seat, the positioning bottom box is fixedly mounted above the support base, and the top end of the positioning bottom box is of an opening structure. A screen frame base is fixedly installed on the inner wall of the side edge, located at the top end, of the positioning bottom box and is formed by combining fixing frames and a protective screen between gaps of the fixing frames. According to the fixing device for plastic part spraying, the buffering self-adaption positioning and fixing assembly composed of the limiting barrel, the piston rod, the spring and the friction pad is arranged, the clamping and positioning requirements of plastic parts with different inner diameters are responded, the damping liquid and the overflow groove structure are combined, impact in the clamping process is effectively relieved, the clamping stability is improved, and the service life of the plastic parts is prolonged. And the integrity of the fixed part is also protected, and shaking, dislocation or damage caused by improper fixation is avoided.

The invention discloses an automatic telescopic reverse countersinking cutter, relates to the technical field of reverse countersinking cutters, and aims to solve the technical problems that machining accidents occur due to inaccurate positioning during reverse countersinking, and the machining efficiency is influenced by cutter avoiding action. The invention has the following advantages: firstly, the step of feeding without avoiding is realized through the automatic retraction and release of the tool apron, the redundant operation is omitted, and the processing efficiency is greatly improved; 2, a two-stage elastic buffer structure is designed, so that hard collision caused by positioning deviation is effectively avoided, and the loss of cutters, workpieces and equipment is reduced; thirdly, head and tail dual axis positioning protection is adopted, the axis deviation problem of sliding connection is solved, and the counter sinking machining precision is remarkably improved; fourthly, cutting heat recycling multi-stage utilization is achieved, passive autonomous operation is achieved in the whole process, and external power and manual intervention are not needed; and fifthly, a whole-course uninterrupted positive pressure protection system is constructed, the overall service life of the tool is greatly prolonged, and the machining efficiency, precision, safety and equipment durability are all considered.

This utility model discloses an anti-seismic and anti-detachment hook assembly for underground utility tunnels, specifically relating to the technical field of hook assembly components. It includes a first mounting base, a first movable platform on the outer side of the first mounting base, first limiting rods fixed to the front and rear ends of the first movable platform, a limiting frame fixed to the outer side of the first movable platform, a movable block for positioning the pipeline slidably connected to the inner side of the limiting frame, a second limiting rod on the outer side of the movable block, the second limiting rod slidably connected to the limiting frame, and a damper body installed on the inner side of the movable block. This utility model uses a first movable platform, first limiting rods, and limiting plates in conjunction with first and second sliding grooves to move multiple support plates, adjusting the orientation of the support plates. The first movable platform and limiting frame, in conjunction with first threaded rods and second limiting rods, drive the movable block and damper body to move, allowing the support plates to contact the utility tunnel pipeline. The damper body and support springs provide shock absorption, and multiple sets of support plates protect the pipeline.

The utility model discloses an electrical connection structure and an energy storage battery and wrapped wire harness using the same, and relates to the technical field of connectors, and the electrical connection structure comprises a structure-plug-in housing member, a terminal support member and a terminal; the two sides of the structure-plug-in shell component are configured to be a plug-in side and an assembling side respectively, and the structure-plug-in shell component is provided with a terminal fixing cylinder penetrating through the plug-in side and the assembling side. The terminal is fixed at the terminal support member; the terminal support component is fixed on the assembling side of the structure-plug-in shell component, and each terminal on the terminal support component penetrates into each terminal fixing cylinder of the structure-plug-in shell component correspondingly. The utility model mainly solves the problem of how to provide a stable and reliable electrical connection structure for the connector. According to the electrical connection structure and the energy storage battery and wrapped wire harness using the same, a stable and reliable electrical connection structure can be provided for a connector.

A steering wheel that suppresses light leakage emitted from a light guide member, the steering wheel comprising: a light source; a light guide member having a light passage portion having a first emission surface formed at its end, through which light output from the light source is guided to emit light from the first emission surface; a transmission suppression portion covering the side of the light passage portion to suppress light transmission; and a lens member receiving emitted light and having a second emission surface that emits the emitted light outward. In a radial cross-section of the steering wheel, the position of the first emission surface along the optical axis of the emitted light is further away from the intersection of the second emission surface and the optical axis than the position of the end of the transmission suppression portion along the optical axis, i.e., the end of the lens member, in the optical axis direction of the optical axis direction.

The application provides a preparation method of a novel semiconductor device, comprising the following steps: forming a defect prevention structure on a first substrate, wherein the defect prevention structure comprises any one or a combination of a laminated structure and a patterned structure; and forming a first functional material on the defect prevention structure to form a low-defect substrate. The preparation method of the novel semiconductor device can reduce defects in a film layer by using the laminated structure or the patterned structure, and can block the movement of dislocations and avoid the formation of penetrating dislocations.

The utility model relates to the field of three-dimensional motion mixing machines, and discloses a three-dimensional motion mixing machine with a material leakage prevention function, which comprises a rotating table and a rotating seat, the top end of the rotating table is fixedly connected with the rotating seat, the top end of the rotating seat is fixedly connected with a plurality of groups of strong springs which are distributed in an array, and the top ends of the strong springs are fixedly connected with a movable seat. A gear motor is fixedly connected to the top end of the movable seat, a gear is fixedly connected to an output shaft of the gear motor, and a gear ring is connected to the upper portion of the gear in an engaged mode. According to the three-dimensional motion mixer with the anti-leakage function, the valve is arranged, during discharging, the air cylinder pulls the bearing frame, due to the existence of multiple sets of strong springs, the whole bearing frame can drive the mixer to incline rightwards, at the moment, a locking bolt is opened, a guide pipe is rotated by a whole circle to enable an outlet of the guide pipe to face downwards, and materials can be poured into an external container by opening the valve; in the three-dimensional material mixing process, materials cannot leak out, the good material leakage prevention function is achieved, and the material leakage problem is solved.

The utility model discloses a multifunctional dressing change device for orthopedic nursing, relates to the technical field of nursing supports, and effectively solves the problems that an existing dressing change device is not firm in fixation and easy to shake, and waste liquid is inconvenient to collect. Comprising a supporting frame, a lifting part is arranged on the supporting frame in a sliding mode, a waste liquid collecting part is fixedly arranged on the lifting part, two fixing blocks are fixedly arranged on the waste liquid collecting part, a middle supporting part is arranged on the two fixing blocks in a sliding mode, a plurality of sliding parts are arranged at the lower end of the supporting frame in a sliding mode, and a suction cup is fixedly arranged at the lower end of each sliding part. The device is simple in structure, convenient to operate, novel in conception and high in practicability.

This invention provides an endoscope steering mechanism and an endoscope, belonging to the field of endoscope technology. It includes: a base with at least one set of output channel groups, each output channel group comprising two output channels; rotating members, the number of which is the same as the number of output channel groups, the rotating members being rotatable relative to the base; and synchronous belts, the number of which is the same as the number of output channel groups, the middle portion of the synchronous belts engaging with the rotating members, the rotating members driving the synchronous belts to move, and two output members connected to each end of each synchronous belt, each output member being located in each of the output channels and being slidable along the length of the output channel. The beneficial effect of this invention is that by engaging the synchronous belts with the rotating members and driving the output members at both ends to slide synchronously in opposite directions within the output channels, high-precision bidirectional traction control is achieved.

This invention belongs to the field of calcium carbonate processing technology, specifically a carbonation tower for processing nano-calcium carbonate. It includes a U-shaped base; a tower body located within the opening of the U-shaped base; a complex mixing device mounted on the U-shaped base; the complex mixing device includes rotating shafts installed on opposite sides of the U-shaped base; the opposite ends of the two rotating shafts are connected to the outer wall of the tower body; a pressure-bearing circular plate located inside the U-shaped base; the pressure-bearing circular plate is located at the bottom of the tower body, and the two are in contact; and a pressure-relieving and energy-delaying mechanism is mounted on the pressure-bearing circular plate. This allows the gas and liquid to continuously oscillate left and right within the tower body, constantly dispersing their distribution, avoiding dead zones during stirring, and preventing material agglomeration and density stratification. The constantly changing positions of the gas and liquid within the tower body facilitate stirring and enhance gas-liquid contact, not only improving the production quality of calcium carbonate but also further reducing the application limitations of the carbonation tower.