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67results about How to "Fix damage" patented technology

Novel plunger pump valve taking device

The utility model relates to the technical field of petroleum equipment, in particular to a novel plunger pump valve taking device which comprises a novel plunger pump assembly, the novel plunger pump assembly comprises a valve taking rod, a push rod, a handle pin and an adjusting nut, the push rod is connected with the valve taking rod in a sliding mode and located in the center of the interior of the valve taking rod, and the handle pin penetrates through the valve taking rod to be detachably connected with the push rod. The plunger pump assembly is detachably connected with the valve taking rod and located on one side of the outer surface of the push rod, the adjusting nut is detachably connected with the valve taking rod and located on the outer surface of the valve taking rod, the adjusting nut is arranged below the handle pin, an original structure is modified and replaced with the novel plunger pump assembly, and therefore the problems that an existing valve taking device has certain defects, and a valve body is prone to being damaged are effectively solved.
Owner:AAOAIS ENERGY TECH CHENGDU CO LTD

Acetylene production generator

The utility model discloses an acetylene production generator which comprises a generator body, a bottom plate is arranged at the bottom of the generator body, and the generator body is connected with the bottom plate through a buffer structure. The device is reasonable in structure and novel in design, when the whole device is placed, generated impact force can drive the supporting columns to contract in the sleeves through the buffer springs so as to be effectively relieved, the impact force is completely released through the counter-acting force of the buffer springs, and therefore the generator body is effectively protected, and the service life of the generator body is prolonged. The problem that an existing device lacks a buffering device and can damage a generator body during placement is solved, after the device is placed, a lead screw is rotated and driven to move, so that the bottom end of the lead screw is rotationally installed in a threaded hole, a fixing block is fixed, the position of a supporting column is fixed, vibration generated during work of the device is avoided, and the service life of the device is prolonged. And therefore, the device is prevented from being damaged due to vertical shaking.
Owner:DANDONG ENWEI CHEM MASCH CO LTD

LED lighting cable protection mechanism

This utility model proposes an LED lighting cable protection mechanism, relating to the field of LED lighting. It includes a lamp body, a lamp head assembly mounted on the left side of the lamp body, a first support assembly mounted on the top of the lamp body, a second support assembly mounted on the bottom of the lamp body, and a winding assembly mounted on the right side of the lamp body. A clamping assembly is placed on the outer surface of the winding assembly. This utility model, by mounting a winding assembly on the back of the LED lighting lamp, can wind the long connecting cables used in the LED lighting lamp around the outer surface of the winding drum, thereby organizing the messy connecting cables. Furthermore, the protective assembly mounted on the outer surface of the winding assembly can cover the wound connecting cables, thus protecting them. Therefore, this device effectively solves the problem that existing LED lighting lamps, due to their long and messy connecting cables, are prone to cable breakage, causing damage to the device.
Owner:NANTONG YUANRUI ELECTRONICS

High-robust image semantic perception adaptive mask transmission method for internet of vehicles

This invention relates to a robust image semantic perception adaptive masking transmission method for vehicle-to-everything (V2X) networks, comprising: Step 1: The transmitting end performs semantic analysis on the original input image, extracts high-precision semantic features, and identifies the regions of interest (ROI) and non-ROI regions of interest (NROI); Step 2: A Boolean mask is dynamically generated based on the semantic segmentation result and SNR; Step 3: The ROI features are directly masked based on the Boolean mask; Subsequently, the processed feature map is fed into a semantic encoder to extract multi-scale semantic features; Step 4: Power normalization is performed, dynamic feature encoding is performed, and then the encoded signal is transmitted through a typical analog wireless channel, and noise is superimposed before reception and recovery; Step 5: The receiving end receives the noisy feature signal, performs channel fading compensation and preliminary denoising, and sends the decoded features into a semantic decoder; Through progressive upsampling and multi-level semantic reconstruction, multi-scale features are fused, and finally, a high-quality reconstructed image is recovered and output.
Owner:SHANDONG UNIV

Vehicle co-driver intelligent sun protection method and system, and automobile

ActiveCN116331134BSunshade implementationMasking implementationWindowsAntiglare equipment
The application relates to a vehicle co-driver intelligent sun protection method and system, an automobile, computer equipment and a storage medium. The method comprises the following steps: collecting a face image of a vehicle co-driver; obtaining a light value of the face image based on the face image, and determining a sun-shielding area of the face image; and adjusting a sun-shielding device and a seat of the vehicle based on the sun-shielding area until the sun-shielding area is shielded. The sun-shielding device and the seat of the vehicle are adjusted based on the sun-shielding area, the sun-shielding area is shielded, the sun-shielding effect is ensured, the sun-shielding efficiency is improved, and the beneficial effect of sun protection is achieved.
Owner:HUMAN HORIZONS (SHANGHAI) CLOUD COMPUTING TECH CO LTD

A chew-resistant soft-seal ball valve

This utility model relates to the field of soft-seal ball valve technology and discloses an anti-chewing soft-seal ball valve, including a valve body, a valve stem rotatably connected inside the valve body, connecting pipes fixedly connected to both sides of the valve body, a protective component and a dispersion component provided on the side wall of the valve body; the protective component includes a first protective cover, one side wall of which is slidably connected to the side wall of the connecting pipe, a second protective cover rotatably connected to one side wall of the first protective cover, and a fixed frame fixedly connected to one side wall of the second protective cover. In this utility model, by sliding the first protective cover to a suitable position on the connecting pipe, pulling the connecting rod causes the locking pin to retract into the connecting frame and compress the first spring; rotating the second protective cover to wrap around the valve body releases the connecting rod, and the first spring resets, causing the locking pin to insert and fix, thus achieving rapid fixation of the protective cover, solving the problem of soft-seal ball valves being easily chewed by animals and causing component damage, and improving the ease of installation of the protective structure.
Owner:TIANJIN BAILIZHANFA GRP

pressing mold

ActiveCN116674249Bfix damagePresses
This application relates to the field of molds and aims to solve the problem of product damage caused by the mold during demolding due to unbalanced ejection forces in pressing molds. The pressing mold includes an upper mold assembly and a lower mold assembly, which are used for pressing the product. The lower mold assembly includes a base plate, a lower template, a movable part, and a positioning part. The lower template is spaced apart from the base plate and is used to hold the product. The movable part is movably disposed between the base plate and the lower template. The positioning part is connected to the movable part and protrudes from the movable part toward the lower template. The movable part is used to move the positioning part, which can move to a position to hold the product to position it, or move to a position away from the product to demold it. When the positioning part of the pressing mold holds or separates from the product, the product is always contained within the lower template, and the product is balanced by the supporting force of the lower template, thereby reducing the damage to the product caused by the pressing mold.
Owner:FUYU PRECISION COMPONENTKUNSHANCO LTD

A base measuring device

ActiveCN224398589Ufix damageSolve the problem of clamping
The utility model discloses a base measuring device relates to base measurement tool technical field, including the measuring box and the fixed platform of fixedly connected in the multiple equidistance of measuring box bottom end, and measuring box inner chamber is divided into detection chamber and installation chamber, and the first switch door and second switch door are installed respectively in detection chamber and installation chamber front end, and measuring box inner chamber is installed detection subassembly and clamping subassembly, the utility model discloses the meshing cooperation of stepper motor and gear, inner tooth ring, and the sliding fit of rotating platform and sliding slot, have played the role of driving detection platform multi -angle rotation, solved the problem that the angle fixed in traditional measurement leads to the incomprehensive detection, improved the overall performance and accuracy of base parameter detection, through the installation cooperation of first line laser sensor, second line laser sensor and detection platform, detection chamber, played the role of the overall detection base levelness, perpendicularity, interval parameter from many directions, improved the measurement accuracy and efficiency.
Owner:WEIJIA MECHANICAL & ELECTRICAL TECHNOLOGY (TIANJIN) CO LTD

A large current field effect transistor testing tool

The utility model provides a kind of high current field effect transistor test tool, belong to test tool field.The tool includes conversion seat, fixed groove, support and compression assembly are set on conversion seat, compression assembly is set on support, support is set on the side of fixed groove, compression assembly includes L type connecting rod, connecting handle, pressing guide column and guide rail, support is vertically set on conversion seat, L type connecting rod includes the first connecting rod and second connecting rod of vertical arrangement, the end of second connecting rod is hinged with the top of support, the right angle of L type connecting rod is hinged with one end of connecting handle, the other end of connecting handle is hinged with the top end of pressing guide column, guide rail is vertically arranged above fixed groove, pressing guide column is slidably arranged in guide rail, conversion seat bottom is provided with plug, plug is communicated with fixed groove.A kind of high current field effect transistor test tool provided by the utility model embodiment can solve the problem of damage to the pin and low detection efficiency in the prior art.
Owner:MEASUREMENT & TESTING TECH RES INST OF HUBEI AEROSPACE TECH RES INST

Bridge construction support device

The utility model discloses a bridge construction support equipment relates to bridge construction equipment technical field. Including base, pressure bearing subassembly, set up at the top of base, is used to provide the buffer to the pressure of bridge that support plate suffers, to reduce the impact load that top column and support post received, reinforcing component, set up at the four sides of base, is used for expanding the contact area of base and ground, to improve the stability of bridge construction support. The utility model under the cooperation of side plate and folding pole, with fixed seat along the screw rod axial translation downward, then can utilize folding pole and push side plate and rotate around long rod, make the included angle of side plate and ground gradually reduce, after side plate and ground contact, can indirectly increase the contact area of base and ground, thereby the stability of equipment, solve the problem that the ground is damaged because of the weight of bridge deck and beam body etc. Main body structure is too high, prolongs the service life of equipment.
Owner:JSTI GRP CO LTD +1

Ultrasonic edge trimming machine

ActiveCN224280871USolve the problem of easy material deformationfix damageSevering textilesTransducerTouchscreen
This application discloses an ultrasonic edge-cutting machine, belonging to the technical field of garment production and processing equipment. The ultrasonic edge-cutting machine includes a frame and a platform fixedly installed on the upper end of the frame. A cutting head for edge-cutting fabric is located on the upper end of the platform. A pedal is installed on the frame, and an ultrasonic generator is fixedly installed on the lower end of the platform on the side of the frame. A first adjustment touchscreen is installed on the ultrasonic generator, and a power switch is located above the first adjustment touchscreen. The high-frequency signal generated by the ultrasonic generator converts the lower ultrasonic transducer into mechanical vibration, which is transmitted to the lower wheel. The upper and lower wheels move along a set trajectory to complete the cutting of the fabric. This machine can cut elastic fabrics and thin fabrics for underwear and garments, producing smooth, flat edges without burrs, preventing material deformation and damage, reducing production costs. The cutting speed can be set, significantly improving production efficiency.
Owner:周应超

An open bushing type thrust rod assembly fixture

This utility model relates to an assembly fixture, belonging to the field of thrust rod technology, specifically an open bushing type thrust rod assembly fixture, including a housing. An assembly assembly component is provided on the outside of the housing, comprising a base, a reducing ring, and a rubber bushing. In this utility model, the rubber bushing is placed inside the reducing ring. An external power device drives a pressure head to move downwards. Under the compression of the inner wall of the reducing ring, the rubber bushing shrinks, facilitating its insertion into the housing. The portion of the rubber bushing inserted into the housing returns to its original shape due to its elasticity, fitting tightly against the inner wall of the housing. This achieves the effect of facilitating the installation of the rubber bushing, solving the problem of easy damage to the rubber bushing during assembly, ensuring the performance and dimensional consistency of the assembled assembly, and improving product stability. It also solves the problem of large interference fit dimensions between the existing bushing and housing, leading to damage to both.
Owner:ZHUCHENG CITY YUMEI AUTO PARTS CO LTD

A waste heat recovery device for cooling water of a heating air compressor

This utility model relates to the field of waste heat recovery technology for air compressor cooling water, and more particularly to a waste heat recovery device for heating air compressor cooling water. The device includes an air compressor; a heat exchanger connected to the air compressor; a hot water storage tank connected to the heat exchanger, with an inlet pipe at the top of the hot water storage tank; and a filter structure disposed inside the hot water storage tank, below the inlet pipe. This waste heat recovery device for heating air compressor cooling water solves the problem in existing waste heat recovery devices for heating air compressors where impurities in the water added to the heat exchanger can damage the heat exchanger.
Owner:CHINA TOBACCO GUANGXI IND

Display device and method of repairing the same

PendingCN122373625AFix faulty pixelsfix damageDisplay deviceHemt circuits
A display device is proposed, comprising: a substrate on which circuit elements constituting pixels are disposed; a repair pattern disposed on the substrate; a buffer layer covering the repair pattern; an active layer disposed on the buffer layer; a conductive layer on the active layer and on which electrodes of circuit elements are disposed; an outer coating layer covering the conductive layer; and a light-emitting element disposed on the outer coating layer, wherein the repair pattern is arranged such that a region thereof overlaps with the active layer.
Owner:LG DISPLAY CO LTD

Multi-end cooperative operation high-quality tea intelligent picking device and method

The application discloses a kind of multi-end collaborative operation's famous and excellent tea intelligent picking device and method, it is related to tea picking technical field, including rack, walking module, identification positioning module, picking module and conveying module.The present application solves the problem of leaf drop and damage caused by the current end picker using "lift off" or "clamping" picking action, using the integrated mode of shear blade and flexible clamping end, without damaging the leaf, shear blade shearing while clamping tea shoots;At the same time, the application adopts the mode of multi-degree-of-freedom mechanical arm harvesting and conveying module conveying and collecting famous and excellent tea, reduces the length of the motion trajectory of multi-degree-of-freedom mechanical arm, thereby solving the problem that the time of fresh leaf picking and conveying to leaf collecting box is relatively long in the traditional mechanical arm picking mode;In addition, the friction between fresh leaves and conveying module in this process is small, reducing the damage risk of fresh leaves after picking.
Owner:JIANGXI ACAD OF AGRI SCI INST OF AGRI ENG

Mine positioning card and charging protection method

This invention relates to a mining positioning card and its charging protection method, belonging to the field of mining positioning card charging safety technology. The positioning card includes a charging detection module, a power management module, a battery pack unit, a main controller unit, and other functional units. The charging detection module receives power input from the charger, supplies power to the power management module, and detects the charging current and voltage. Based on the charging status, it outputs a first logic level signal to the power management module. The main controller unit performs protocol matching with the charger and outputs a second logic level signal to the power management module based on the protocol matching result. The power management module combines the first and second logic level signals to determine whether the battery pack unit is charging. This invention can protect the positioning card's mainboard components from damage caused by high voltage and high current, avoid affecting battery performance and lifespan, and ensure the positioning card operates normally, stably, and reliably underground.
Owner:CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD

Bump packaging structure and method for manufacturing bump packaging structure

Embodiments of the present application provide a bump packaging structure and a preparation method thereof, and relate to the technical field of semiconductor packaging. The bump packaging structure comprises a chip, a solder pad, a protective layer, a substrate conductive layer, a first combined conductive layer, a conductive column and a solder cap. The substrate conductive layer comprises a multilayer graphene structure. Compared with the prior art, the bump packaging structure and the preparation method thereof provided by the present application can avoid the undercut opening formed by excessive corrosion, and the structure is more stable, the problem of electrode stress cracking is avoided, and the heat dissipation and conductivity are better, effectively alleviating the failure hidden danger caused by electromigration and thermal migration.
Owner:FOREHOPE SEMICONDUCTOR (NINGBO) CO LTD

Tubing head four-way joint

The utility model discloses a tubing head four-way joint which comprises a main body, a cavity is formed in the main body, a plurality of channels communicated with the cavity are formed in the main body, a first corrugated hose is fixedly connected to an opening of each channel, first connecting plates are fixedly connected to the positions, located on the two sides of the first corrugated hoses, of the main body, and transfer pipes are connected to the two first connecting plates in a pivoted mode. The upper end of the adapter is connected with two second connecting plates, the connecting line between the two first connecting plates is perpendicular to the connecting line between the two second connecting plates, the upper end of the adapter is fixedly connected with a second corrugated hose, the two second connecting plates are pivoted with a connecting pipe, and the lower end of the connecting pipe is fixedly connected with the second corrugated hose. By rotating the adapter on the first connecting plate and the connecting pipe on the second connecting plate, the angle of the connecting pipe in two different directions can be adjusted so as to adapt to hoses in different directions, and the problem that the hose is damaged in advance due to bending caused by non-vertical connection between the hose and the tubing head four-way joint is solved.
Owner:YANCHENG HONGJIE PETROLEUM MACHINERY CO LTD

Wafer cutting machine material frame clamping device

ActiveCN224360453USolve tedious and time-consumingfix damageWorking accessoriesFine working devices
The utility model relates to wafer processing technology field discloses wafer cutting machine material frame clamping device, including base, the base outer surface fixedly connected with the limiting ring, the base top fixedly connected with the heat conduction plate, the heat conduction plate top is provided with crystal, the base outer surface is provided with the fixed ring, the fixed ring outer surface fixedly connected with the evenly distributed air cylinder, a plurality of the air cylinder outer surface all fixedly connected with the connecting block, a plurality of the connecting block outer surface all fixedly connected silica gel gasket. In the utility model, through fixing a plurality of air cylinders on the fixed ring, and setting the fixed ring through the sliding block and the sliding slot on the outer surface of base, make the fixed ring can slide freely on the base, and when installing, only need to make the connecting ring push out the stop block through rotating by poking the poking piece, the fixed ring is clamped between the stop block and the limiting ring, solved the problem of time -consuming of being troublesome when replacing the assembly of clamping part.
Owner:SUZHOU STAR UNION TECH CO LTD

An easy-to-disassemble wall switch

ActiveCN224288127Ufix damageachieve snapping
This utility model belongs to the field of switch technology, specifically a wall switch that is easy to disassemble. It includes a switch base, a push plate, a frame box, and a panel. The open end of the frame box is connected to the panel via a disassembly and assembly mechanism. The disassembly and assembly mechanism consists of a rotating ring, hooks, and blocks. The hooks on the periphery of the rotating ring engage with the slots of the blocks on the inner side of the panel. A ring array of fan-shaped blocks inside the frame box is used to rotate the rotating ring. Operating blocks on the periphery of the rotating ring pass through holes in the frame box, facilitating manual control of the rotating ring's rotation. A limiting mechanism is provided on the fan-shaped blocks, including an assembly groove, a spring rod, and a locking ball. The first and second locking grooves on the inner side of the rotating ring engage with the locking ball to achieve "fixed" and "unlocked" state locking. The panel's inner part engages with the inner wall of the frame box, and the blocks are embedded in the grooves of the frame box for positioning. This utility model, through a rotating ring-driven hook and block engagement structure, allows for panel disassembly and assembly without tools, preventing damage to the wall and panel during disassembly.
Owner:WENZHOU MAIKAWEI ELECTRIC APPLIANCES CO LTD

Grounding trunk through floor waterproof metal protection tube

The utility model discloses a kind of ground wire through floor waterproof metal protection pipe, it is related to building electromechanical lightning protection and grounding technical field, including bottom plate, fixed hole, fixed iron nail, ground wire through square hole, metal protection pipe, waterproof ring wing, bolt hole, bolt, jumper yellow-green bicolour line and ground wire;Fixed hole is set in bottom plate edge;Ground wire through square hole is set on bottom plate, and penetrates bottom plate;Metal protection pipe is welded on bottom plate, and welded waterproof ring wing, bolt hole and bolt are equipped on metal protection pipe upper portion;Ground wire passes through metal protection pipe by ground wire through square hole, and inlay fills fire clay, bolt hole and bolt are equipped on ground wire;Jumper yellow-green bicolour line is effectively fixed on metal protection pipe and ground wire by bolt hole and bolt, forms through guide.The utility model can effectively solve that ground wire is easily damaged or dropped by accidental impact, and the periphery of protection pipe is easily leaked, fireproof plugging is not strict, and the problems such as pre-buried positioning are not accurate.
Owner:HUNAN CONSTRUCTION ENGINEERING GROUP CO LTD +1

A multi-layer screen metal additive particle uniform screening device

The utility model discloses a kind of metal additive particle uniform screening devices of multilayer screen, including guide structure, first screening structure and second screening structure, and first screening structure and second screening structure are symmetrically arranged about guide structure, and the lower end of guide structure is connected with first screening structure and second screening structure;Guide structure is used for guiding material, and material body is guided to storage pipe by communicating pipe, and butterfly valve controls the communication of storage pipe and dispersion cylinder, and material body is guided by diversion passage diversion;First screening structure is used for screening treatment, and material body is guided to partition plate by diversion passage, is screened by first screening plate, then is screened by second screening plate and third screening plate, and is screened by three levels.The utility model discloses a kind of metal additive particle uniform screening devices of multilayer screen, by the setting of structure, the purpose of uniform screening is realized.
Owner:CANGZHOU DONSHENG METAL ADDING AGENT MFG

Novel glass kiln horizontal stirrer cooling water pipe hanging device

The utility model relates to glass processing field especially relates to a new type glass kiln horizontal agitator cooling water pipe hanging device, including wall, horizontal pass stand, fixed link, movable joint, connecting rod, iron fastener chain and arc buckle, one side of wall is equipped with horizontal pass stand, one side fixed link has in horizontal pass stand, the end of fixed link is connected with connecting rod through movable joint, both ends of connecting rod all hang and connect with iron fastener chain, the bottom end of iron fastener chain is equipped with the arc buckle for cooperating with cooling water pipe, this new type glass kiln horizontal agitator cooling water pipe hanging device, the device adopts arc buckle cooperation iron fastener chain to hang fixed water pipe, and each junction is free rotating movable structure, makes water pipe can follow horizontal agitator synchronous operation smoothly, greatly improves the stress condition of water pipe joint, effectively solved the service life problem of inlet and outlet water pipe.
Owner:长利玻璃洪湖有限公司

A signal detector for power transmission lines

PendingCN122283533ASolve the problem of detachment damageavoid damageSignal detectorMechanical engineering
This invention discloses a signal detector for power transmission lines, relating to the technical field of signal detectors for power transmission lines. The signal detector includes a rectangular frame, with a fixing mechanism fixed to the upper surface of the frame. The fixing mechanism includes a fixing plate, a slider, an arc-shaped plate, a limiting spring, a sleeve plate, and a threaded rod. The fixing plate is fixedly connected to the upper surface of the rectangular frame. When the device is impacted, the shock-absorbing device, in conjunction with a hinge rod, a sliding rod, a thrust spring, and a friction block, reduces the downward sliding speed of the placement plate. This prevents the components inside the detector from colliding with each other due to the different speeds of their downward movement or resetting compared to the outer casing, thus avoiding damage to the internal components. This invention solves the problem of component damage caused by inertia leading to a difference in movement speed between the internal components and the outer casing.
Owner:JIANGYIN SHENGJIE HARDWARE & ELECTRICAL CO LTD

Oral cavity scanning and sampling integrated machine workstation

ActiveCN224420971USolve the problem of awkward appearance and inconvenient placementimprove aestheticsIntraoral scannerOral problems
This utility model relates to the field of oral medical technology and discloses an integrated intraoral scanner workstation, including a bracket. A handrail is fixedly connected to the outer wall of the bracket. A display screen is mounted on the top of the bracket. A lifting assembly is installed inside the bracket. A placement shell is provided on the outer wall of the bracket, and a protective assembly is provided on the outer wall of the placement shell. A UPS lithium power supply is installed inside the bracket. An ambient light is fixedly connected to the bottom of the bracket, and a rotating caster is fixedly connected to the bottom of the ambient light. A collection box is fixedly connected to the outer wall of the bracket. The lifting assembly includes a lifting rod and a buckle, and the outer wall of the lifting rod is slidably connected inside the bracket. In this utility model, the UPS lithium battery and computer adapter are concealed in the lower column space and fixed inside the housing by a fixing device. An additional base ambient light is also added, which is collision-resistant, technologically advanced, and solves the problems of obtrusive appearance and inconvenient placement, improving aesthetics and safety.
Owner:HAIAN LEADERMOUNT ELECTRONIC TECH CO LTD

A butt welding adjustment device for building steel structures

PendingCN122400800Areduce gapImprove efficiency
This invention discloses a butt welding adjustment device for building steel structures, relating to the field of laser welding technology. The device includes a worktable with a support frame fixedly connected to its top. A cylinder is mounted on the worktable, and a limit plate is fixedly connected to the output end of the cylinder. A guide rod cylinder is fixedly connected to the bottom of the support frame, and a laser welding head is fixedly connected to the output end of the guide rod cylinder. The device includes a protective device for the laser welding head. Activating the cylinder causes its output end to drive a clamping plate to clamp and position both ends of the material. Simultaneously, the clamping plate moves inward, causing an L-shaped contact column to move towards the laser welding head. Moving a moving plate in the same direction further drives the moving column towards the laser welding head, thereby causing the clamping column to compress the material and reduce gaps between the steel structure materials after they are joined.
Owner:ZAOZHUANG HUAXIA CONSTR ENG CO LTD

Temperature compensated LED lighting application circuit

ActiveCN224439236UBrightness adjustablefix damageControl theoryPwm signals
This utility model relates to the field of temperature compensation technology and discloses a temperature-compensated LED lighting application circuit with stable light source, including a temperature detection circuit (120) for acquiring the temperature signal generated when the LED beads are working, a main control module (MCU) and a graded dimming circuit (130). The main control module (MCU) is used to receive the temperature signal and output a PWM signal according to the temperature signal; the graded dimming circuit (130) is used to receive the PWM signal; the main control module (MCU) adjusts the duty cycle of the output PWM signal according to the feedback temperature signal to control the graded dimming circuit (130) to dim the LED beads.
Owner:DONGGUAN QIYI ELECTRIC APPLIANCE MASCH CO LTD

A drainage structure for water conservancy engineering construction

This utility model relates to the field of drainage technology in water conservancy engineering construction, and discloses a drainage structure for water conservancy engineering construction, including a drainage pipe. A filter screen is installed inside the drainage pipe, and a guide pipe is installed on the side wall of the drainage pipe. Shells are installed on both sides of the drainage pipe. An inlet is opened on one side of the drainage pipe, and an outlet is opened on the other side. A check valve assembly is installed inside the drainage pipe, and a disassembly assembly is installed inside the shell. The check valve assembly includes a rubber plug, the outer wall of which is slidably connected to the inside of the inlet and the inside of the drainage pipe. In this utility model, when water flows in from the inlet, the water pressure pushes the rubber plug to move, which in turn moves the sliding column. At this time, a spring is compressed, and the outer wall of the sliding column slides within a limiting column, opening the valve and allowing water to flow smoothly, preventing backflow and achieving an adaptive pressure regulation effect, thus improving drainage efficiency.
Owner:LI COUNTY YANGHUKOU HYDRAULIC MASCH CO LTD