48results about How to "Cause damage" patented technology

The application discloses an explosion-proof liquid crystal display screen and relates to the technical field of explosion-proof liquid crystal display screens.The explosion-proof liquid crystal display screen comprises a base, a supporting seat fixed on the top of the base, a screen hinged on the top of the supporting seat, an outer frame fixed on the outer wall of the screen, and a square frame slidingly connected to the inner wall of the outer frame.When the square frame is impacted from the front side, the square frame moves towards the outer frame, and the compression of the return spring drives the square frame to move the transmission rod, further drives the L-shaped plate and the large limiting rod to move away from the outer frame.When the large limiting rod is separated from the rotating rod, the rotating rod and the protection plate are rotated under the return action of the large torsional spring, so that the protection plate is counterclockwise rotated to be parallel to the screen.When the screen is impacted from the front side and is tilted backward, the protection plate shields the screen to prevent sparks caused by secondary damage.

The application discloses a mural reinforcing protective agent and a preparation method and application thereof, belongs to the technical field of cultural relic restoration, and can solve the technical problems that existing mural reinforcing materials cannot reinforce the lower layer structure of ancient murals and are prone to being attached to the surface of murals to cause the whitening of the surface pigments. The mural reinforcing protective agent comprises a bacterial cellulose carrier and Ba(OH)2 nanoparticles loaded on the bacterial cellulose carrier in situ. The application plays a reinforcing role on the lower layer structure of murals, realizes deep reinforcement of ancient murals, improves the protection effect, stability and durability, and the surface of the mural will not be whitened.

This utility model relates to the field of agricultural machinery technology, and in particular to an air supply system for a pneumatic seeding and planter. It includes a fan unit, a motor unit, an energy storage unit, a generator unit, and a transmission coupling unit. The generator unit is connected to the tractor's pre-installed power output shaft via the transmission coupling unit. The energy storage unit is connected to the generator unit. The motor unit is electrically connected to the energy storage unit and is also connected to the fan unit. When this pneumatic seeding and planter air supply system is working, it converts the kinetic energy output from the tractor's power output shaft into electrical energy, which drives the fan unit to operate at a preset speed. This ensures the continuous and stable operation of the air supply system, significantly improving the seeding accuracy and quality of the pneumatic seeding and planter. The drive method used in this pneumatic seeding and planter air supply system will not damage the battery or electrical system, has no requirements on the tractor's specifications, is highly applicable, and is easy to implement and promote.

The application relates to the new energy technology field and provides a weak light early warning control method, an electronic device and a computer readable storage medium, which are applied to an electronic device connected with a photovoltaic module; the method comprises the following steps: acquiring an input current value of the photovoltaic module connected with the electronic device; when the input current value decreases, calculating a falling rate of the input current value according to the input current value sampled; if the falling rate is greater than or equal to a preset rate threshold value, updating a current reference value for performing weak light state judgment from a first current threshold value to a second current threshold value; the second current threshold value is greater than the first current threshold value. The above method can perform weak light early warning in time by controlling the current reference value, and improves the power utilization experience of a user.

The utility model discloses a kind of electronic chip double-sided drying devices, it is related to chip processing technical field, including the intermittent turnover subassembly being installed in the both sides of drying box inside one end, the one end of intermittent turnover subassembly is provided with elastic resistance and pressure subassembly;Wherein intermittent turnover subassembly includes motor, the output of motor is provided with dialing disc, the top of dialing disc is provided with dialing rod, the top and bottom of the one end of dialing disc away from motor are all provided with support rod, are all provided with linkage disc above dialing disc, the outside of linkage disc is evenly provided with multiple groups of linkage gap, the top and bottom of the one end of linkage disc away from motor are all provided with support rod.The utility model is driven dialing rod by motor of intermittent turnover subassembly under the action of electric power and dialing linkage disc, realize intermittent turnover, not only make chip rotation heat evenly, chip can also be avoided to cause damage;Chip clamping by elastic resistance and pressure subassembly, because the degree of chip extrusion is reduced by the resilience of elastic member clamping, guarantee chip integrity.

The present application relates to the field of ABS assembly detection, disclose integrated controller ABS double electromagnetic valve assembly comprehensive detection system and detection method, ABS integrated valve body sealing test tooling includes fixedly installed on the mounting plate bottom plate, the middle part of the bottom plate is provided with a through hole, both sides of the through hole are provided with slide rails, the slide rails are arranged with mounting platform, the mounting platform is provided with the first cylinder assembly moving up and down, the first cylinder is used for sealing positioning the air port of the lower side of the valve body, the mounting plate is provided with a positioning mechanism for positioning the pressing assembly, further includes a second cylinder assembly for sealing the left air port of the valve body, and a third plug for sealing the right air port of the valve body;The ABS integrated valve body sealing test tooling further includes a detection system, the detection system is connected with the ABS integrated valve body for detecting the sealing property of the ABS.The detection system has the advantages of high detection efficiency, multiple detection and the like.

This invention discloses a method and apparatus for detecting delamination defects in ceramic matrix composites using a flexible microwave resonator. The apparatus includes a flexible microwave resonator, a vector network analyzer, a two-dimensional scanning platform, and a data processing unit. The flexible microwave resonator consists of a polyimide substrate, a top-opening resonant ring, and a bottom coplanar waveguide feeding structure, conformally attached to the surface to be tested due to its flexibility. The method acquires S11 curves at various points by scanning, extracts the resonant frequency as a feature value, and finds that the resonant frequency offset has a monotonically changing relationship with the depth of the delamination defect. By constructing a resonant frequency distribution image, high-sensitivity localization, imaging, and quantitative depth inversion of delamination defects in ceramic matrix composites are achieved. This invention solves the problems of rigid sensors being unable to adapt to curved surface detection and low sensitivity for small defects, and is suitable for non-destructive testing of complex components such as aero-engine blades.

This utility model discloses a bee pollination protection device, relating to the field of bee pollination technology. It includes a base with multiple sets of sliding seats fixed on both sides of the upper end. A control box is provided at one end of each sliding seat. A first sliding plate and a second sliding plate are respectively installed on the inner side of each sliding seat. Multiple sets of connecting seats are fixed on the upper ends of both the first and second sliding plates. A protective box is fixed on the inner side of each connecting seat. A first waterproof motor and a sliding column are respectively located at the center of both sides of the upper end of the base. The advantages of this utility model are: it allows the bee pollination protection device to protect the beehive through the protective box, preventing damage to the bees in the beehive when the user sprays pesticides on the pollinating object; it allows the bee pollination protection device to adjust the height of the beehive according to the growth stage of the pollinating object, facilitating direct access to flowers by bees, reducing flight distance, and thus accelerating the pollination efficiency.

This invention discloses an online detection method and device for the trajectory of sphere polishing, relating to the field of precision machining online detection. The method includes: S1, acquiring a continuous image sequence during the sphere polishing process at time i using a high-speed camera; S2, preprocessing and feature recognition of the continuous image sequence; S3, a rotation angular velocity measurement module calculating the rotation angle and rotation angular velocity to obtain theoretical values; and a three-dimensional trajectory reconstruction module radially projecting discrete trajectory points onto a sphere surface determined based on the first point, to achieve visualized three-dimensional trajectory reconstruction under geometric constraints, thus completing the online detection of the sphere polishing trajectory. This invention combines a transparent grinding disc structure, a multi-view observation layout, and a dedicated image processing algorithm to achieve real-time, high-precision, and high-efficiency online detection of the sphere's rotational motion parameters and trajectory during the polishing process.

The application discloses a kind of deepwater large-span bridge anti-ship collision device, belong to bridge protection technical field.The application solves the problem of damage caused by anti-collision device to ship, including floating column, floating column is connected with water bottom by first elastic connecting component, floating column is provided with ship direction conversion mechanism, ship direction conversion mechanism includes connecting ring, first baffle and second baffle are rotatably connected on connecting ring, elastic member is connected between first baffle and second baffle, first baffle and second baffle are connected with water bottom by second elastic connecting component.The first baffle, second baffle and floating column are elastically connected with the water bottom, and the energy of the ship body can be consumed.When the ship direction conversion mechanism cannot block the advance of the ship, when the first baffle or the second baffle rotates to contact the trigger rope behind, the elastic net and the cylinder can be erected, under the joint action of the elastic net and the ship direction conversion mechanism, the impact force of the ship body is further consumed, until the ship body stops.

This application relates to a high-safety industrial fan, comprising a rotating base, a mounting base rotatably mounted on the rotating base, and a plurality of fan blades mounted on the mounting base. The fan blades are mounted on the mounting base by fasteners. A fixing post is provided at the bottom of the mounting base. The application also includes a tensioning assembly for tightening the fixing post and the fan blades. This application effectively prevents the fan blades from falling to the ground and causing personal injury, thus improving the safety of the industrial fan. Furthermore, the use of turnbuckles and tensioning ropes further prevents the fan from falling to the ground.

The application discloses a coarse grain screening method of a gas-fighting steel bolt, and relates to the technical field of metal inspection and detection, which comprises the following steps: preparing a gas-fighting steel bolt sample and a standard comparison sample; the gas-fighting steel bolt sample and the standard comparison sample have the same material and heat treatment system; the resistivity of the standard comparison sample is determined based on the average measurement diameter and the resistance value of the standard comparison sample; the resistivity between every two adjacent measurement points of the gas-fighting steel bolt sample is determined according to the average measurement diameter between every two adjacent measurement points and the resistance value between every two adjacent measurement points; and the resistivity between every two adjacent measurement points is compared with the resistivity of the standard comparison sample respectively, and the range of the interval of the coarse grain in the sample is determined according to the comparison result. In the screening process, the gas-fighting steel bolt is not damaged, the detection range is wide, the screening method is simple, fast and effective, and the screening efficiency is improved.

The application discloses a fluid connector and a liquid cooling device, and relates to the technical field of liquid cooling devices, and the fluid connector comprises a connecting head, a valve seat and a connecting piece. The connecting head is provided with an annular groove, the valve seat is provided with a slot and a fixing hole, the slot extends along a first direction, the connecting head is inserted into the valve seat along the first direction, the fixing hole extends along a second direction perpendicular to the first direction, the fixing hole is communicated with the slot, and the connecting piece is used for being matched with the fixing hole and the annular groove when the annular groove moves to the fixing hole, so that the connecting head and the valve seat are connected. The fluid connector improves the problems of difficult assembly and high scrap rate caused by the traditional rigid connecting piece connection.

The utility model provides a kind of superfine powder filling machine and including its graphitization furnace, superfine powder filling machine includes: lower hopper is installed in the upper end portion of outer shell body, for conveying downward and forcedly downward powder material;Material collecting cover is installed in the lower end portion of outer shell body, for collecting compressed powder material;Multi-stage pair of rollers are sequentially arranged from top to bottom along the inner wall surface of outer shell body, and each stage pair of rollers includes at least two opposite rotating rollers;Driving device is connected with pair of rollers, for driving pair of rollers to rotate;Pair of rollers and lower hopper form a cavity, vacuum equipment is installed at the cavity, for extracting gas in powder material, and make the negative pressure in working area form.The utility model adopts the way of pair of rollers step-by-step compression under negative pressure state, make gas discharge more easily in superfine powder compression process, to improve compression efficiency.It can greatly improve the filling amount of negative electrode material in crucible, to effectively reduce the power consumption of negative electrode material graphitization process, reduce graphitization production cost.

This utility model discloses a bean-separated planting device, belonging to the field of agricultural machinery technology. It includes a bean-separating device with a bean storage bin at the top, a bean-pressing frame with a bean-dropping channel, a bean-discharging pipe installed at the lower part of the bean-pressing frame and connected to the bean-dropping channel, a return spring between the bean-pressing plate and the bean-pressing frame on one side facing the bean-dropping channel, and a cam on the other side of the bean-pressing plate. A bean-dropping pipe is located at the bottom of the bean storage bin, installed at the upper part of the bean-pressing frame and connected to the bean-dropping channel. Slide grooves are provided on both sides of the bean-pressing frame, with sliders inside the grooves. Compression springs are provided on both sides of the sliders and the inner walls of the grooves. A drive shaft is provided on the cam, with its two ends respectively threaded onto the two sliders and connected to a bean-pressing stepper motor. The bean-pressing plate is hinged to a clamping plate via a rocker arm and connecting rod, and the clamping plate extends into the bean-discharging pipe. This utility model solves the problem of bean damage caused by inconsistent bean sizes during bean separation in existing integrated bean planting machines.

This invention relates to a well logging tool balance piston positioning device and its usage method, belonging to the field of petroleum exploration technology. The well logging tool balance piston positioning device of this invention includes a positioning gauge and a positioning ring. The positioning ring is sleeved on the outer wall of the balance piston and located inside the well logging tool. The positioning gauge includes a frame and a magnetic ball. The magnetic ball and the positioning ring are mutually attracted, and the magnetic ball can roll freely inside the frame. The surface of the frame is provided with graduations, and the outer wall of the well logging tool is provided with a reference line for positioning one end of the frame. By sleeved on the piston with the positioning ring that is mutually attracted to the magnetic ball, the magnetic ball, which can roll freely inside the frame, can stop at the position of the positioning ring. Using the graduations on the frame and the reference line on the outer wall of the well logging tool, the position of the balance piston in the well logging tool can be indirectly determined to determine the amount of oil in the well logging tool. The method of use is simple, the detection results are intuitive, and it does not damage the well logging tool itself.

The utility model relates to the technical field of magnetic core tube, especially to a magnetic core tube pressure resistance test structure, its including base, the oil guide hole is opened in the base, oil nozzle, oil nozzle sets up oil guide hole department, with oil guide hole intercommunication, connecting block, connecting block sets up the base, and connecting block sleeve sets up oil nozzle on, pressure block, pressure block sets up connecting block, and pressure block can be under the action with connecting block abuts, pressure block, connecting block with oil nozzle surround and form test space, the magnetic core tube of waiting for testing is sleeve set up oil nozzle, and floats in test space, the magnetic core tube pressure resistance test structure is configured as: hydraulic oil passes through oil guide hole and oil nozzle and enters to push the magnetic core tube movement and the pressure block abuts and carries out test. The utility model can avoid the deformation damage of magnetic core tube, and is convenient for subsequent assembly.

This invention discloses an MPVE-blended reinforced double-wall corrugated pipe, comprising a corrugated pipe and a connecting structure. A supporting flexible tube is disposed inside the corrugated pipe. The connecting structure is mounted on the corrugated pipe and includes a connector, a guide block, a sealing ring, and a guide groove. The guide groove is formed on the supporting flexible tube. The connector is installed at one end of the corrugated pipe, the guide block is installed on the connector, and the sealing ring is installed on the connector. The connector is inserted into the supporting flexible tube along the direction of the guide groove via the guide block. This invention relates to the field of pipe processing equipment technology and has the following beneficial effects: The corrugated pipe has a supporting flexible tube inside and connecting structures at both ends. Through the cooperation between the components of the connecting structure, it is convenient and quick to connect two corrugated pipes of the same size. At the same time, the supporting flexible tube inside the corrugated pipe can further enhance the structural performance of the corrugated pipe and prevent leakage due to damage to the corrugated pipe.

This invention relates to a degumming composition, its preparation method, and the degumming method thereof. The degumming composition comprises the following components in weight percentages: 84%–93.5% degumming solvent, 3%–5% solvent oil, 0.5%–3% solid wax, 1%–3% organobentonite, and 2%–5% polar activator; wherein the degumming solvent includes one or more of dichloromethane, N-methylpyrrolidone, and ethylene glycol monobutyl ether. This invention combines the degumming solvent, solid wax, solvent oil, organobentonite, and polar activator in a specific ratio, achieving synergistic effects among the components to obtain a degumming composition with slow evaporation and short degumming time.

The application discloses an integrated explosion-proof valve mushroom head processing technology and a double-integrated battery cover plate. The processing technology comprises the following steps: rough stretching, stretching the top cover plate at the position of the explosion-proof valve based on the aluminum top cover plate, so that the edge position of the explosion-proof valve maintains a thickness of 0.45-0.55 mm, the middle part of the explosion-proof valve maintains a thickness of 2-2.5 mm, and the stretching height of the middle part is 2 times the height of the base body of the explosion-proof valve; spherical surface stretching, so that the inner surface and the outer surface of the middle part form a hemispherical structure away from each other; mushroom head initial shaping, extruding the outer surface of the middle part by using a convex die, and simultaneously supporting the inner surface of the middle part by using a concave die made of elastic material, so that the explosion-proof valve is extruded into a mushroom head structure, the top surface of the mushroom head structure is a plane structure, and an elastic allowance deformation space is arranged on the outer circumferential side of the mushroom head structure; mushroom head final shaping, the shape of the explosion-proof valve is punched out by continuous stretching and stamping, and then the middle position is marked by cold heading, so that the personnel, equipment and process flow can be greatly simplified.

The utility model relates to engineering equipment technical field, concretely is a kind of girder mobile trolley based on battery power supply drive, including frame, charging module and a plurality of interval arrangement's drive mechanism, frame is made of several mutually connected assembly type vehicle body;Charging module is installed on frame, including charging port and charging battery, charging port is electrically connected with charging battery, every drive mechanism includes the drive wheel of installation in the bottom of frame, the drive motor of transmission connection with drive wheel and the driver of electric connection with drive motor, charging battery is electrically connected with corresponding drive motor by driver.The girder mobile trolley provided by the utility model is powered by charging battery, does not need very long cable to power supply, avoids the accident, such as stumbling work personnel or damaging other equipment when girder mobile trolley moves, because cable is too long.

The utility model relates to processing jig technical field, specifically disclose a kind of metal piece positioning tool jig, including bearing plate, multiple sets of positioning column are installed on the bearing plate, and multiple sets of workpieces are installed on the bearing plate by positioning column, the through hole is opened on the workpiece, when workpiece is installed on bearing plate, positioning column is positioned workpiece by through hole;Positioning unit is further provided between the bearing plate and workpiece. Workpiece is installed on bearing plate, the workpiece of this moment will be installed on positioning column, then specific equipment is used to carry out the machining operation of metal, in the process of using the jig to position workpiece, the outside of workpiece will not contact with workpiece periphery, but through the abutment of positioning column and the through hole on workpiece, obviously, workpiece can be positioned while not causing damage to workpiece sidewall during machining process, meet the processing needs of the workpiece.

The utility model discloses a kind of feeding equipment for environmental protection plastic woven bag production, it is related to feeding equipment technical field;And the utility model includes feeding pipe, the top surface of feeding pipe is fixed with fixed box, L-shaped plate is slidably arranged in the fixed box, the side of L-shaped plate is fixed with frame, limiting roller is rotatably arranged in the frame, filtering frame is slidably arranged in the fixed box, limiting roller can be rolled in filtering frame, the top surface of fixed box is fixed with fixed frame, the side of fixed frame is fixed with second motor, the output of second motor is fixed with rotating shaft, by the mutual movement of two L-shaped plates, in turn make frame drive limiting roller roll on the top surface of filtering frame, in turn can the caked raw materials be scattered, then the caked raw materials can fall from filtering frame, avoid the caked raw materials in drawing-in machine difficultly fully plasticization, improve the uniformity of drawing-in, no fracture phenomenon appears.

The utility model discloses a buckle connecting device based on bracketless invisible corrector. The device includes bracketless invisible corrector, connecting groove body and connecting head, and the front part of bracketless invisible corrector is provided with connecting groove body, and bracketless invisible corrector and connecting groove body are integrally made, and connecting head is connected with bracketless invisible corrector by cooperation with connecting groove body, and connecting groove body and connecting head are all provided with arc part that is in accord with the front side of bracketless invisible corrector, and the arc part between connecting groove body and connecting head is connected through ball head structure. The device can conveniently and stably install components to upper dentition or lower dentition, and can extend to outside of oral cavity through connecting head, and does not need glue and tooth abrasion, and is a non-invasive, convenient and painless connecting device.

The utility model discloses a kind of open type pump sealing structure of thermal power plant, belong to the technical field of handover shaft protection, including open type pump shell, mechanical seal assembly and packing assembly, the middle part of open type pump shell is connected with pump shaft by inserting, the outside of pump shaft is equipped with mechanical seal assembly and packing assembly, mechanical seal assembly includes dynamic ring, static ring and elastic element.The beneficial effects of the utility model are: by increasing mechanical seal assembly on the basis of open type pump packing seal, and packing assembly is set to the outside of mechanical seal assembly, mechanical seal assembly can be protected using packing assembly, prevent solid particles from entering the inside of mechanical seal assembly to cause damage, and then the service life of the entire open type pump sealing structure is extended, simultaneously, by the mode of double sealing of mechanical seal assembly and packing assembly, improve the sealing reliability, effectively prevent the problem that open type pump leaks.

The utility model relates to distillation still technical field, especially a kind of protective distillation still, including the observation cabin and still cabin being set in rack, sealing baffle is set between observation cabin and still cabin, still cabin is provided with distillation still body, sealing end cover is set on the upside of sealing baffle, to seal distillation still body, sealing hand wheel is set on the upside of sealing end cover, glove window is set on observation cabin, sealing end cover is set on the upside of sealing baffle, the setting of glove window can be convenient manual operation, sealing end cover is opened or closed by glove window sealing hand wheel, avoid operating personnel to open sealing end cover, gas in distillation still body directly contacts operator, the state of sealing hand wheel and sealing end cover can be observed to observation cabin, and, can play protective effect to operator, avoid distillation still body to cause harm to operator after opening, the setting of filter box can filter gas in observation cabin and then discharge, guarantee the safety of discharge gas.

The invention discloses a tunnel plugging composite flexible waterstop component and its construction method in the technical field of water conservancy and hydropower engineering. The component comprises an expansion waterstop strip wrapped by a waterproof film, an expansion cement-based material, and a hose penetrating through the waterproof film and the expansion cement-based material and then extending into the expansion waterstop strip. During construction, the expansion cement-based material is located on the upstream and downstream sides of the expansion waterstop strip, the hose is extended to the outside of the plugging formwork and sealed, and the hose is opened after the plugging concrete construction is completed. The waterproof film can prevent the expansion waterstop strip from losing the waterstop effect due to the early expansion caused by the water in the cast concrete or underground water. Subsequently, the hose is used to introduce external water into the expansion waterstop strip, so that the expansion waterstop strip expands first, fills the gap, and achieves the waterstop effect. Then, the expansion cement-based material expands and hardens again, which can reduce the water head acting on the expansion waterstop strip and squeeze the closed hose to avoid the expansion waterstop strip being soaked in water for a long time, thereby improving the durability of the waterstop component.

This utility model discloses a drill bit box, including a box base, with an inner liner barrel fixedly connected inside the box base. The outer wall of the inner liner barrel has stepped grooves arranged in a descending order to hold the bottom of drill bits. An intermediate sleeve is connected to the inner liner barrel, and the intermediate sleeve has intermediate sleeve holes for supporting the middle part of the drill bit. The position of each intermediate sleeve hole corresponds to each stepped groove. A positioning cover is connected to the intermediate sleeve, and the upper end face of the positioning cover has a drill bit positioning hole with an extension ring extending from it. The drill bit positioning hole, the intermediate sleeve hole, and the stepped grooves are used to hold one drill bit. The drill bit positioning holes are arranged from smallest to largest along the periphery of the positioning cover, and correspondingly, the intermediate sleeve hole and the stepped grooves are also arranged accordingly. This novel drill bit box structure results in drill bits of uniform height, making the box neat and aesthetically pleasing.