10results about How to "Undamaged" patented technology

This invention discloses a device for wireless communication between underground manholes and the ground, relating to the field of urban underground infrastructure monitoring technology. It solves the problem that manhole covers and frames are mostly made of metal, which strongly shields electromagnetic waves, affecting data acquisition by monitoring equipment inside the manhole. The key technical points include: a manhole frame support: an open-frame structure adapted to the manhole cover; an adjustment component on the support to adjust the diameter of the support to accommodate differences in the manhole cover's diameter; and an equipment support: located on the support, forming a downwardly protruding load-bearing structure. The effect is that by fixing the transmitting antenna in the gap between the manhole cover and frame, the electromagnetic shielding effect of the cover and frame is avoided, significantly enhancing signal strength compared to inside the manhole, ensuring normal data communication between the monitoring equipment inside the manhole and the ground.

This invention discloses a quality inspection device and system for cycling apparel, comprising: a workbench with an installation slot on its top; a cycling apparel inspection table detachably and fixedly installed in the installation slot, the top of which has a positioning slot for positioning the cycling apparel to be inspected; and a support assembly including a support frame fixedly installed on the top of the workbench. This invention relates to the field of quality inspection devices for cycling apparel. Through the collaborative operation of a visual camera, a main control chip, a wireless signal transmission module, a storage module, and a display screen, it achieves automatic identification of appearance defects in cycling apparel, real-time processing of inspection data, local storage, and remote transmission. This results in a significant reduction in the rate of missed inspections, a highly efficient and rapid inspection process, traceable and manageable data, and a significantly improved overall standardization of the inspection process.

This utility model relates to the field of battery cell technology and discloses a novel soft-pack PACK structure, including a housing. A cover is fixedly connected to the outer wall of the housing, and a sealing ring is fixedly connected to the inner wall of the cover. A support is installed inside the housing, and an epoxy board is fixedly connected to the outer wall of the support. Copper-aluminum composite busbars are installed on the left and right outer walls of the epoxy board, with threaded rods threaded into the interior of the copper-aluminum composite busbars. An aluminum busbar is fixedly connected inside the epoxy board, and a pressure strip is provided on the outer wall of the aluminum busbar. In this utility model, the housing and cover house the battery cells to protect them from external impact damage. An epoxy board is placed on the side of the support, and then an aluminum busbar is installed inside the epoxy board. A pressure strip is then fixed to one side of the aluminum busbar, and a data acquisition line is placed between the pressure strip and the aluminum busbar. This achieves the effects of ensuring battery cell overcurrent, welding strength, and stable data acquisition.

The utility model discloses a polytetrafluoroethylene special oven of vacuumizing, including chassis, bearing frame and drying cylinder, the both sides of chassis are welded with a side support board respectively, and one of side support boards is fixed with servo motor. Advantageous effect: be provided with chassis, bearing frame, side support board, servo motor, inclination adjustment frame, drying cylinder, displacement sensor, slope, PLC controller, start servo motor work through servo controller, promote servo motor according to the fixed angle of rotation angle counterclockwise rotation, and then servo motor output end drives chassis counterclockwise through inclination adjustment frame, make the drying cylinder on bearing frame lean to left side, when the displacement of displacement sensor detection reaches the preset value of PLC controller, and then the hydraulic cylinder of slope is started by PLC controller and stretches, makes the contact block of hydraulic cylinder top and bearing frame bottom meet, adopts this mode, can realize the drying cylinder discharge end inclination of horizontal arrangement, reaches the effect of full discharge.

A method for preparing white stable lignin and its application are disclosed. This invention addresses the limitations of existing lignin decolorization processes, which are constrained by long decolorization times and difficulty in maintaining color stability under ultraviolet light stimulation after decolorization, thus failing to meet the low absorption requirements of radiative cooling materials in the visible light band. The method includes: 1. Preparation of DES; 2. Preparation of lignin solution; 3. Modification of lignin; 4. Bleaching; 5. Preparation of white stable lignin. Application: It is used in the preparation of refrigeration materials.

This utility model discloses a steel well with a ring-shaped gripping rib reinforced structure, belonging to the field of well body structure technology. The steel well includes a cylindrical well body with multiple ring-shaped gripping ribs arranged vertically on its outer wall. The gripping ribs are closed-loop ring structures, fixed to the well body by welding or integral stamping, with increased spacing in the middle and bottom areas of the well body. The top and bottom plates of the well body are widened and can be designed with flanged structures to enhance the gripping force with the soil. The gripping ribs are made of Q235 / Q355 material and coated with an anti-corrosion coating, connected to the well body by continuous full welding or semi-embedded connection. This structure increases frictional resistance and gripping force through the interlocking of the gripping ribs with the soil, and widens the plates to distribute the load, significantly improving the well body's resistance to uplift, slippage, and settlement. It is suitable for buried applications in municipal and industrial settings, and performs particularly well in complex geological conditions such as soft soil foundations and high water levels. This utility model has a simple structure, is easy to construct, low in cost, and has strong pull-out and tilt resistance, making it valuable for a wide range of engineering applications.

The application discloses a natural gas sand-resistant hydrophobic valve and belongs to the technical field of hydrophobic valves. The technical problem that a valve core channel of a traditional natural gas hydrophobic valve is L-shaped, the flow rate is increased by tens of times when sand water flows through the valve core, a high-speed rotating flow is formed in the valve core, and the valve core material is extremely easy to be damaged no matter how high the hardness is is solved. The valve body shell is provided with a water inlet pipe and a water outlet pipe, the valve body shell is internally provided with a valve core, the top of the valve core is provided with a water inlet hole, a water outlet cavity of the valve core is communicated with the water outlet pipe and forms an L-shaped structure, a buffer cavity is further arranged in the valve core, the buffer cavity is communicated with the water outlet cavity, and the buffer cavity is located below the water outlet cavity; in the application, when running, sand water directly enters the water outlet cavity and the buffer cavity through the water inlet hole, the sand water rapidly expands and depressurizes in the cavity, the flow rate is greatly reduced, and then an impact-resistant sand water layer is formed at the bottom of the buffer cavity, meanwhile, the impact-resistant sand water layer also effectively protects the cavity bottom plate from being impacted, and the damage rate of the device is reduced.

This utility model discloses a tool for disassembling planetary gears in a scissor lift gear reducer, comprising: a disc; a first bolt disposed at the center of the disc; a second bolt disposed at the outer edge of the disc and connected to a connecting hole on the planetary gear; and a pad with a circular cross-section, the pad being positioned opposite the disc, with one end of the first bolt abutting against the pad. By applying this utility model, a tool for disassembling planetary gears in a scissor lift gear reducer is provided. By simplifying the disassembly process, the planetary gears can be quickly and effectively separated from the reducer body, thereby improving disassembly efficiency and maximizing protection of the planetary gears from damage, thus extending their service life.

The utility model relates to acoustics technical field discloses a kind of loudspeaker combination structure of ball-shaped sound box, including shell, the inside fixed connection of shell has mid-high pitch loudspeaker, the inside fixed connection of shell has pure bass loudspeaker, the inner wall fixed connection of shell at pure bass loudspeaker downside has sound guide cone, the inner wall of shell at sound guide cone outside is equipped with sound hole, the outer surface of shell is fixedly installed with passive radiator, the inner wall sound outlet groove of shell, the inner wall of sound outlet groove is penetrated by the outer wall of mid-high pitch loudspeaker, the outside of shell is provided with dustproof mechanism.In the utility model, through the position setting of mid-high pitch loudspeaker, and the position of pure bass loudspeaker, the setting of sound guide cone, ensure that middle, high, low sound can be respectively transmitted from different loudspeaker, and through its position and shape setting, can ensure that sound quality is better, and can 360 degree diverge, reach the effect of keeping sound quality under the premise of keeping beautiful.

The application relates to a smoothing device for polyester knitted dyeing cloth dyeing production and a use method thereof, which comprises a machine body, a smoothing mechanism arranged on the machine body, the smoothing mechanism comprising a plurality of upper smoothing rollers and a plurality of lower smoothing rollers, the upper smoothing rollers and the lower smoothing rollers being rotationally connected to the machine body, an upper abutting wheel set and a lower abutting wheel set being further arranged on the machine body, the upper abutting wheel set comprising an upper supporting plate and a plurality of upper abutting wheels, the plurality of upper abutting wheels being rotationally connected to the upper supporting plate, the plurality of upper abutting wheels abutting the plurality of upper smoothing rollers, the lower abutting wheel set comprising a lower supporting plate and a plurality of lower abutting wheels, the lower abutting wheels being rotationally connected to the lower supporting plate, the lower abutting wheels abutting the lower smoothing rollers, and the axes of the upper abutting wheels and the lower abutting wheels being parallel to the axis of the lower smoothing rollers. Through the technical scheme, the possibility of deformation of the upper and lower smoothing rollers can be reduced, and the smoothing effect of the smoothing rollers on the polyester knitted dyeing cloth is improved.