19results about How to "Does not affect functionality" patented technology

The invention belongs to the technical field of building collapse ruins search and rescue equipment, and particularly relates to a microminiature search and rescue robot moving platform which comprises two moving modules and a load module, and the three modules are connected end to end to form a snakelike robot moving platform. The two motion modules are the same in structure and each comprise a driving joint, a deflection joint and a fixed shell, the driving joints provide power for walking of the robot moving platform, and the deflection joints control the walking direction of the robot moving platform and guarantee that the robot moving platform successfully avoids obstacles in the walking process; a life detector and a battery are arranged in the load module, search and rescue can be conducted in ruins, and a power source is provided for the wireless communication robot to achieve functions. The micro snakelike robot moving platform has good adaptability in the complex environment in building collapsing ruins, is particularly suitable for penetrating through narrow gaps, and has the advantages of being modularized in structure, light in weight, flexible in walking, easy to install and replace and accurate in control.

The invention relates to the field of power electronic conversion, and discloses a three-port energy router topological structure and a control method thereof, and the three-port energy router topological structure comprises three ports including a first AC port, a second AC port and a DC port, three power modules including a first power module, a second power module and a third power module, and an electrical isolation unit. Wherein the alternating-current side of the first power module is connected with the first alternating-current port, and the direct-current side of the first power module is connected to the direct-current port; the AC side of the second power module is connected with the second AC port, and the DC side is connected to the DC port; the direct current side of the third power module is connected to the direct current port; and the electrical isolation unit is connected among the first alternating current port, the second alternating current port and the alternating current side of the third power module, and is used for realizing power regulation between the first alternating current port and the second alternating current port. According to the topological structure, the first power module and the second power module are connected with the two transformer areas respectively. The topology has the advantages of high efficiency and strong operation stability.

This invention discloses a traction motor transport protection structure, a traction motor, and a rail vehicle, relating to the field of motor technology. The traction motor transport protection structure includes a motor shaft, a transmission end bearing assembly, a non-transmission end bearing assembly, and an adjustment structure. The transmission end bearing assembly is located at the transmission end of the motor shaft, and the non-transmission end bearing assembly is located at the non-transmission end of the motor shaft. The non-transmission end bearing assembly includes a non-transmission end cover, a non-transmission end bearing, and a bushing. The adjustment structure is connected between the bushing and the motor shaft. A shaft shoulder is provided on the motor shaft. The adjustment structure adjusts and locks the axial position of the motor shaft relative to the bushing, causing the motor shaft to move axially towards the transmission side until the shaft shoulder abuts against the transmission end cover, or causing the motor shaft to move axially towards the non-transmission side until a preset distance is formed between the shaft shoulder and the transmission end cover. This allows for more convenient protection of the traction motor bearings.

This invention relates to the field of chemical storage technology, specifically to a leak-proof hazardous chemical storage device. It includes a tank body with an upper plate and a lower plate concentrically fixed at its upper and lower ends, respectively. Multiple elastic plates are evenly distributed around the outer circumference of the tank body between the upper and lower plates. Each elastic plate has a fixing plate fixed to both ends in the circumferential direction. A sealed cavity is formed between the elastic plates, the tank body, the upper plate, and the lower plate. A protrusion is formed in the center of each elastic plate protruding outwards from the tank body. Swing frames are respectively installed on both sides of the protrusion, and pressure rollers are rotatably mounted on the swing frames, pressing against the elastic plates. This invention uses sensors installed within the sealed cavity to monitor leakage signals in real time, achieving rapid response; a motor-driven pressure roller compresses the elastic plates, making them adhere tightly to the leak point in the tank body to form a physical barrier; combined with the arc-shaped design of the fixing strips, it ensures a seamless seal, effectively blocking the leakage path of chemicals.

The invention relates to the technical field of intelligent building elevator control, in particular to an off-line elevator calling control method based on edge service, comprising an elevator control system with cloud center service and local edge service, the off-line elevator calling control method comprises the following steps: S1, a user initiates an elevator calling request, s2, when the elevator control system is disconnected from the cloud center service, the working mode is switched to an offline mode; s3, the elevator control system carries out local right judgment; s4, the elevator control system inquires the authority information through the local edge service and verifies whether the user has the authority to access the target floor in combination with the floor information of the local database, and S5, the elevator control system determines the elevator calling type according to the elevator calling request and finally executes the elevator calling operation according to the elevator calling type. According to the invention, when the central service is not available, elevator operation such as elevator calling can still be completed, and normal use of the elevator system is ensured.

The invention relates to a construction method and application of a mouse model with spontaneous gastric precancerous lesions. The construction method comprises the following steps: constructing a Pgc-Cre gene mouse only carrying an inducible Cre gene (tamoxifen can be injected in a rich manner to induce Cre nucleation); the method comprises the following steps: constructing a Rosa26-Zeb2 gene mouse which only carries a Zeb2 gene; the method comprises the following steps: taking Cre and Zeb2 genes as raw materials, mating to obtain a mouse carrying the Cre and Zeb2 genes at the same time, then administering a drug to the mouse, inducing Cre to enter a nucleus and promoting expression of the Zeb2 genes to obtain the mouse model with the spontaneous precancerous lesion of the gastric cancer; the medicine is tamoxifen. The mouse model constructed by the invention is driven by the specific inducible Cre of the stomach main cells, is limited to the stomach main cells, avoids gene disturbance of non-target cells, is simple and convenient to mate, low in cost and short in experimental period, and can be used for screening gastric precancerous lesion drugs.

This application provides a method for preparing decellularized pericardium, employing a combination of specific pretreatment, sterilization, defatting, decellularization, and freeze-drying processes. This method effectively removes antigenic substances from animal tissues while maximally preserving the integrity of bioactive components and structures in the material. Simultaneously, the preparation process effectively incorporates inorganic metal ions, polysaccharides, and drugs to prevent adhesions. The resulting decellularized pericardium possesses both natural rough and smooth surfaces. The smooth surface has a dense fibrous structure, effectively blocking the invasion of adhesion tissues without affecting tendon function. The rough surface allows tissue ingrowth, facilitating rapid vascularization and tendon repair. Furthermore, the decellularized pericardium is loaded with functional components, further promoting tendon healing and preventing adhesions.

The invention discloses an APK operation compliance verification method and system based on cloud policy control. A client verification module is embedded in an application, environment feature information representing a running environment is collected in the starting and running stages of the application, and the information is encrypted and sent to a cloud verification service; the cloud verification service performs matching analysis on the operation environment based on a pre-configured strategy rule to generate a corresponding verification control instruction; and the client verification module performs runtime control on the display process or process state of the application according to the verification control instruction. The verification logic and the strategy rule are intensively maintained by the cloud and can be dynamically updated, and the client only executes the cloud instruction, so that the effective verification of the compliance use of the APK is realized, and the application is prevented from being used in an unauthorized operation environment.

The application provides a multi-stage adjustable pulmonary vascular intervention balloon catheter and belongs to the field of medical devices. The catheter is fixedly connected with a tube main body at one end, and the tube main body is fixedly connected with a pressure charging cavity, a guide wire cavity and a pressure relief cavity at the end away from the catheter, respectively. The pressure charging cavity, the guide wire cavity and the pressure relief cavity are in communication with the tube main body. The catheter is fixedly connected with a soft head at one end, and the pressure charging device is arranged at the end of the catheter close to the soft head. The application can trigger the opening of the corresponding valves of the inner, middle and outer three layers of balloons in sequence by means of precise control of the pressure charging pressure, realize the grading expansion effect of the precise shaping of the outer layer of balloons at 6 atm under the pre-expansion of the inner layer of balloons at 2 atm and the superimposed expansion of the middle layer of balloons at 4 atm, avoid the risk of overpressure by matching the spring safety valve opened at 8 atm in the pressure relief channel, enable the balloon to retract quickly and the valve to close automatically by negative pressure suction, reduce the risk of guide wire displacement, shorten the operation time and reduce the radiation exposure of patients.

The application provides a system call takeover method suitable for Linux system compatibility mode and a switch distribution scene, comprising the following steps: when it is detected that an IA32 compatible system call table is unavailable or does not serve as a valid distribution path, locating a direct call point of an original dispatch function in an IA-32 compatible entry function, and by modifying a relative call instruction at the call point, the call point is redirected to a self-defined dispatch function; the self-defined dispatch function implements hierarchical distribution according to a target system call number, executes self-defined logic on a target system call of interest, and transparently returns to the original dispatch function to maintain kernel original semantics for a target system call not of interest; and by means of a multi-entry parallel patching and a runtime self-repairing mechanism, completeness and cross-version stability of the takeover path are ensured. The application does not depend on export of a system call table, can be suitable for new kernels such as Linux 6.x, and is applied to fields such as file transparent encryption and decryption, security auditing and the like.

This application discloses a seat slide rail structure, including a slide rail located at the lower end of the seat base. The slide rail includes a groove, a slider, a stop module, and a control handle. One end of the slider is embedded in the groove and slidably connected to it, while the other end is connected to the base. The stop module and the control handle cooperate to unlock the slide rail. The stop module includes a stop block, a limiting member, and an elastic member. One end of the stop block extends into the groove and engages with the bottom of the groove for a stop. The other end of the stop block is elastically and telescopically connected to the limiting member via the elastic member. The other end of the limiting member is connected to the base. When the control handle is adjusted, the stop block disengages from the bottom of the groove to unlock the slide rail; conversely, the slide rail is locked. This application provides a high-strength, lightweight, and space-optimized seat slide rail structure through its slide rail structure design, which can better improve the user experience.

The present application relates to a strain of Bacteroides fragilis and its application, the strain is preserved in China General Microbiological Culture Collection Center (CGMCC) on April 14, 2026, and the preservation number is: CGMCC No. 38257.The strain can regulate STING-dependent training immunity, effectively resist Salmonella typhimurium and H9N2 avian influenza virus infection, maintain the integrity of the intestinal barrier of the host, and reduce inflammatory damage.The Bacteroides fragilis of the present application has good biological safety, and the strain can be used as a training immunity inducer, and the strain is expected to be a candidate probiotic or vaccine adjuvant for preventing / treating bacterial and viral infections, suitable for human health and poultry farming, and provides a new solution to resist antibiotic resistance.

This utility model provides a scooter handlebar stem with storage function, relating to the field of scooter technology. The handlebar stem consists of an upper storage assembly and a lower support assembly. The storage assembly mainly includes a hollow outer sleeve with a hollow storage sleeve inside. The storage sleeve is used to store commonly used cycling items such as umbrellas or water bottles. The storage sleeve and the stored items can slide up and down together within the inner cavity of the outer sleeve. A ratchet mechanism is located below the storage sleeve. When the ratchet mechanism is closed, the upper surface of the item's end cap is flush with the upper surface of the outer sleeve. When the ratchet mechanism is open, a spring in the ratchet mechanism pushes the storage sleeve and the item outwards, making the item's end cap much higher than the upper surface of the outer sleeve, facilitating the rider's removal of the item. When it is necessary to put the item back, the item's end cap can be pressed down to return to flush with the upper surface of the outer sleeve.

The utility model relates to the technical field of stationery, in particular to a pen. The pen comprises a pen body, a pen clip and a fastener. Wherein the pen body comprises a pen holder and a mounting part, and the mounting part is arranged on the outer wall of the pen holder; the pen clip comprises a mounting section and a swinging section, and the mounting section is opposite to the mounting part; the fastener penetrates through the mounting section and the mounting part so as to connect the mounting section to the mounting part, and the swing section of the pen clip can swing in the direction close to or away from the pen holder. According to the pen, by improving the connecting structure of the pen holder and the pen clip, the connecting stability of the pen clip is improved, and a user can obtain better use experience.

The high-altitude operation safety belt compliance use monitoring device comprises a safety rope hook detection unit and a surrounding rod belt hook detection unit, when a hook is not hooked or accidentally falls off, a normally open contact of a magnetic control sensor is closed, a signal is sent to a controller through a 2.4 G communication module, and the controller is connected with the safety rope hook detection unit and the surrounding rod belt hook detection unit. And the controller gives an alarm after receiving the signal. And a low-hanging detection unit, a buffer bag detection unit and a near-electricity induction unit are further arranged. Compared with the prior art, the structure has the advantages that on the premise that the original structure and function are not influenced, the hanging state of the hooks on the safety rope and the pole surrounding belt can be accurately detected, whether the non-standard use behavior of low hanging is carried out or not can be detected, whether a high-voltage electric field exists around or not and whether a buffer bag is scattered or not can also be detected, and the safety of the safety rope and the pole surrounding belt is ensured. The safety accident rate of climbing operation is effectively reduced, and reliable life safety guarantee is provided for operators.

The application discloses a steel structure inner cavity magnetic wall-climbing robot welding seam defect positioning device and method, belongs to the technical field of defect positioning, solves the problem that the existing wall-climbing robot cannot effectively adsorb and stably travel on the inner cavity of a complex-shaped steel structure, and leads to insufficient defect detection adaptability, and comprises a positioning device main body, a magnetic travel mechanism and a self-cleaning defect positioning mechanism, wherein the magnetic travel mechanism comprises a combined magnetic wheel, a self-adaptive protection assembly and a damping reset assembly; in the application, the combined magnetic wheel, the wheel driving motor and the self-adaptive protection assembly are cooperatively matched to non-rigidly fix the combined magnetic wheel, and the combined magnetic wheel is hung in a robot moving seat through the self-adaptive protection assembly; when the robot encounters a recess or a protrusion of an inner cavity wall surface, the corresponding combined magnetic wheel will self-adaptively float up and down, thereby actively adhering to the wall surface, so as to adapt to the inner cavity wall of a steel structure of different shapes and ensure that the robot can be stably adsorbed on the inner wall in the whole process.

The invention belongs to the technical field of pharmaceutical preparations, and discloses a nanomaterial-mediated ankylosing spondylitis treatment preparation for specifically inhibiting MSC (mesenchymal stem cell) osteogenesis abnormality and application of the nanomaterial-mediated ankylosing spondylitis treatment preparation, and the technical scheme is characterized in that the preparation comprises a mannose-modified mesoporous silica nano-drug delivery system and Ikbkb siRNA (small interfering Ribonucleic Acid). The invention discloses a new mechanism that a tmTNF reverse signal drives pathological osteogenesis through a PSMA1-NF-kappa B axis under the stimulation of sTNFR I, and a mannose modified Man-MSN nano delivery system is constructed, so that active targeting on AS focus macrophages is realized; and by specifically knocking down Ikbkb, the key link of immune-osteogenesis transformation can be specifically blocked on the premise of not influencing the overall inflammation level.