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42results about How to "Stable and reliable" patented technology

Complementary cooling device, liquid cooling system, battery pack and electric equipment

ActiveCN222530552UImprove the effect of cooling and heat exchangeincrease temperatureSecondary cellsThermodynamicsElectrical battery
The utility model relates to the technical field of battery packs, and provides a complementary cooling device, a liquid cooling system, a battery pack and electric equipment.The complementary cooling device comprises a first liquid cooling plate and a second liquid cooling plate, the first liquid cooling plate and the second liquid cooling plate are arranged in parallel and form a containing space, and the containing space is used for containing a to-be-cooled object; the circulation direction of a cooling medium in the first liquid cooling plate is opposite to the circulation direction of a cooling medium in the second liquid cooling plate; in the flowing direction of the cooling medium, the flow speed of the cooling medium in the first liquid cooling plate and the second liquid cooling plate is gradually increased. According to the scheme, the staggered liquid inlet temperature and liquid outlet temperature can be formed at the two ends of the two side faces of the to-be-cooled object, the heat interaction capacity of the liquid outlet area can be improved, the cooling heat exchange capacity of the to-be-cooled object is improved, and the regional temperature difference is reduced.
Owner:GAC AION NEW ENERGY AUTOMOBILE CO LTD

Wire drawing die with quick positioning structure for tungsten filament processing

The utility model discloses a tungsten filament processing wire-drawing die with a quick positioning structure, which comprises a row die base, a fixing sleeve is arranged above the row die base, the outer wall of the circumferential side surface of the fixing sleeve is rotatably connected with a fixing ring, and an opening is arranged between the inner wall and the outer wall of the circumferential side surface of the fixing ring. An arc-shaped groove is formed between the inner wall and the outer wall of the circumferential side face of the fixing sleeve, a telescopic groove aligned with the arc-shaped groove is formed in the fixing sleeve, and one end of the telescopic groove extends into the arc-shaped groove. Through the arrangement of the fixing sleeve, the wire drawing block is placed in the fixing sleeve, the lead screw is rotated, the lead screw drives the movable block to move, the movable block drives the extrusion plate to move, the wire drawing block is fixed in the fixing sleeve through the extrusion plate, the device can fix the wire drawing blocks of different sizes in the fixing sleeve, and a user can disassemble and assemble the wire drawing blocks conveniently; the open hole in the fixing ring is aligned with the lifting column, so that the lifting column penetrates through the open hole and then is extruded on the fixing sleeve, and the fixing sleeve is rotated.
Owner:ANHUI ZHENXING WIRE DRAWING DIES

High speed two position three way hydraulic valve

The present invention belongs to the technical field of hydraulic operating mechanism of high-voltage circuit breaker, and relates to a high-speed two-position three-way valve, comprising a main valve body and a pilot valve body connected to each other; a main valve core is provided in a sliding manner in the main valve body, and the limit position of the axial movement of the main valve core is limited by a cone valve, and outer cones are provided at both axial ends of the main valve body, and the outer cones are correspondingly matched with inner cones provided at both axial ends of the inner cavity of the main valve body; the main valve core is a hollow structure, and a pilot valve is installed at one end of the main valve core close to the oil inlet, and a damping oil hole is provided between the working oil port of the main valve core and the control oil cavity of the pilot valve, and the main valve body is also provided with an oil inlet and an oil return port connected to the hollow cavity of the main valve core, and a working oil port is provided at the axial outer end of the main valve body, and the working oil port is connected to the hollow cavity of the main valve core. The two-position three-way valve can meet various working requirements of the hydraulic operating mechanism of the circuit breaker.
Owner:WUXI SANXIN DRIVE CONTROL

Gate driver circuit and display panel

A display panel and a gate driving circuit are provided. The gate driving circuit utilizes the pull-down control module to periodically pull up and pull down the voltage level of the second node. The voltage level of the second node is periodically a high voltage level. This effectively reduces the time duration when the second node corresponds to the high voltage level. After the TFTs electrically connected to the second node are forward biased, the TFTs could have sufficient recovery time. This solution effectively improves the bias condition of the TFTs in the pull-down control module and thus makes the circuit more stable and raises the reliability of the circuit.
Owner:WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD

A straightening device for aluminum profile production

ActiveCN118950755Bquality improvementGuaranteed straightening effectShaping toolsStripping-off devices
The invention discloses a straightening device for aluminum profile production, comprising a workbench, a fixing plate 1 is fixedly installed on the top of the workbench, a straightening component is fixedly installed on the top of the workbench, the straightening component comprises a fixing frame 1 and a cylinder, the fixing frame 1 is fixedly installed on the top of the workbench, the cylinder is fixedly installed on one side of the fixing frame 1, a clamping plate is fixedly connected to the output end of the cylinder, tooth plates are fixedly installed on both sides of the clamping plate, and a supporting frame is fixedly installed on the top of the workbench. The invention relates to the technical field of aluminum profile production; the straightening device for aluminum profile production can straighten the aluminum profile by means of the straightening component, and the straightening is simple and convenient, the quality of the aluminum profile after straightening will be better, and the aluminum profile will not be loosened during the straightening process, thereby ensuring the straightening effect, and the aluminum profile can be put into subsequent production and processing or practical application in a more perfect form.
Owner:YANCHENG RUIXI METAL TECHNOLOGY CO LTD

Mechanical arm self-learning compliant control method based on sensor online calibration

The invention belongs to the technical field of mechanical arm control, and particularly relates to a mechanical arm self-learning compliant control method based on sensor online calibration. Comprising the following steps: 1, denoising data acquired by a six-dimensional force sensor by using a Kalman filter; step 2, acquiring actual data of contact force by utilizing online gravity compensation; 3, the environment interaction model of the robot polishing process of the complex surface is analyzed; 4, identifying initial parameters of the environment through RLS; and 5, by means of the obtained data, a mechanical arm self-learning compliant control method based on sensor online calibration is provided, a reference trajectory is corrected, and zero-error steady-state tracking is achieved. The force tracking effect of the mechanical arm in a complex unknown environment can be improved, and then the grinding precision of the robot is improved to a large extent.
Owner:SHENZHEN HUACHENG IND CONTROL

Anti-collision and anti-deformation electric pedal

The anti-collision and anti-deformation electric pedal comprises a bottom plate, one end of the bottom plate is provided with a first stopping assembly, and the other end of the bottom plate is provided with a second stopping assembly; the motor is detachably connected to one side of the bottom plate; the motor rotating shaft assembly on the other side of the bottom plate is connected with a motor; one end of the rotating arm is detachably connected with the top of the motor rotating shaft assembly, and the motor rotating shaft assembly can drive the rotating arm to rotate in the horizontal direction; one end of the limiting block is detachably connected to the middle of the rotating arm; in a non-working state, the second stopping assembly stops the rotating arm; in the working state, the motor rotating shaft assembly drives the rotating arm to rotate horizontally, the limiting block and the first stopping assembly are clamped to achieve stopping, meanwhile, the first stopping assembly and the second stopping assembly clamp and suspend the rotating arm, the bearing capacity of the rotating arm is improved, the rotating arm is not prone to deformation, reliable stability is provided for rotating motion of the electric pedal, and the service life of the electric pedal is prolonged. Abnormal operation sound is reduced, and the service life is prolonged.
Owner:GUANGZHOU CHANGYI AUTO PARTS CO LTD

A detection head fixing assembly for an automatic detection machine

This utility model discloses a detection head fixing assembly for an automatic inspection machine, belonging to the technical field of automatic inspection machines. It includes a mounting plate, a connecting plate mounted on the front of the mounting plate, and a detection head body fixedly connected to the front of the connecting plate, along with a locking device assembled within the connecting plate. In this utility model, a return spring provides a return force during the movement of the sliding rod, assisting the limiting plate in quickly returning to its original position upon release, thus improving operational efficiency. Furthermore, a circular plate is sleeved on the sliding rod via a bearing, forming a sliding fit with the sleeve, ensuring smooth movement of the sliding rod during pushing and rotating, and preventing jamming. In summary, this utility model, through the coordinated cooperation of the sliding rod, the limiting plate, the transverse groove, and the limiting slot, achieves rapid insertion, rotational positioning, and stable locking of the detection head body, possessing technical advantages of quick installation, reliable structure, and simple operation, significantly improving the efficiency and assembly safety of the inspection equipment.
Owner:KUNSHAN XINRUIMING PRECISION MOULD CO LTD

ULTRASONIC SEALING DEVICE AND METHOD FOR CROSS-SEALING A TUBE OF PACKAGING MATERIAL USING THE SAME.

ActiveIT202600037447T2Stable and reliableovercome limitations
A method (800) for transversally sealing a tube (116) of packaging material (102) using an ultrasonic sealing device (121), said method comprising placing (802) a transversal sealing section (112) of the tube (116) between a sonotrode (118) and an anvil (120) comprising a ridge (600, 700), wherein the transversal sealing section (112) of the tube (116) comprises a first two-layer sub-section (212), a three-layer sub-section (214) and a second two-layer sub-section (216), transmitting (804) ultrasonic acoustic vibrations, having a frequency (f) and an amplitude (A), from the sonotrode (118) into the transversal sealing section (112), thereby causing heat generation in the paperboard (104) in turn causing the plastic foil (106) in the transversal sealing section (112) to melt, and pressing (806) the tube (116) together between the sonotrode (118) and the anvil (120) by a pressure (P), thereby resulting in that the plastic foil (106) of the transversal sealing section (112) bond such that a transversal sealing (124) is formed, wherein the ridge (600, 700) of the anvil (120) comprises a first two-layer sub-section (602) for receiving the first two-layer sub-section (212) of the tube (116), a first two-or-three layer sub-section (604) for receiving the first two-layer sub-section (212) or the three-layer sub-section (214) of the tube (116), a three-layer-sub-section (606) for receiving the three-layer sub-section (214) of the tube (116), a second two-or-three layer sub-section (608) for receiving the three-layer sub-section (214) or the second two-layer sub-section (216) of the tube (116), and a second two-layer sub-section (610) for receiving the second two-layer sub-section (216) of the tube (116), wherein the ridge (600, 700) has equal height (H) in the first two-layer sub-section (602), the first two-or-three layer sub-section (604), the second two-or-three layer sub-section (608) and the second two-layer sub-section (610), wherein a combination of the frequency (f), the amplitude (A), the pressure (P) and properties of the paperboard (104) is chosen such that equal temperature in the first two-layer sub-section (212), the three-layer sub-section (214) and the second two-layer sub-section (216) of the tube (116) is achieved.
Owner:TETRA LAVAL HOLDINGS & FINANCE SA

A quick-release bird spike device for power lines

PendingCN122074475Areduce occupancyavoid damage
This invention provides a quick-release bird spike device for power lines, relating to the technical field of bird-proof devices for high-voltage transmission lines. It includes a clamping base, a bird spike connecting seat mounted in a lifting manner within a storage sleeve, and bird spikes mounted on the upper part of the connecting seat. Telescopic support rods are connected to both sides of the connecting seat via pivots. The telescopic support rods on the sides away from the connecting seat are pivotally connected to a semi-circular drive sleeve. An abutment limiting claw is integrally formed on the outer side of the connecting seat. In the retracted state, the bird spikes are clustered together and unfolded after installation, effectively preventing injury to people from their sharp ends. The elastic force generated by the compression spring causes the abutment limiting claw to be fixedly installed on the crossarm. The installation process utilizes the leverage effect of the semi-circular drive sleeve, making installation and disassembly relatively simple while ensuring reliable stability after installation, reducing the risk of falling, and facilitating subsequent repositioning.
Owner:GANSU DIANTONG POWER ENG DESIGN CONSULTING CO LTD

5G antenna and radiation unit

The present invention discloses a 5G antenna and the radiation unit thereof. The radiation unit includes two groups of dipoles the polarizations of which are orthogonal, each group of the dipoles includes two radiation arms which are disposed to be spaced apart relative to each other, and each of the radiation arms is provided with a first extension branch and a second extension branch which are disposed to be spaced apart from each other. The extension of the operating frequency band and good radiation performance can be achieved by the radiation unit; as such, a 5G antenna using the radiation unit has good radiation performance.
Owner:COMBA TELECOM TECH (GUANGZHOU) CO LTD

Ecological slope protection system and construction method thereof

PendingCN122504194Aimprove integrityStable and reliable
The present application provides an ecological slope protection system and a construction method thereof, the ecological slope protection system comprising an interface treatment layer, a frame structure layer, an ecological substrate layer and a vegetation layer, the interface treatment layer being arranged on a slope surface; the frame structure layer being arranged on the interface treatment layer, the frame structure layer being formed by splicing a plurality of frame units, each frame unit comprising a frame body, the frame body being a hexagonal structure, a tenon or a groove being arranged on the outer side wall of each side, any two adjacent frame units being connected through the tenon and the groove, and a filling layer being arranged in each frame body; the ecological substrate layer being laid on the frame structure layer; and the vegetation layer being formed by growing plant seeds sowed on the ecological substrate layer. The present application can make the ecological slope protection system have reliable structural stability and the ability to flexibly adapt to slight deformation.
Owner:HUBEI UNIV

A method of sterilizing a bag planting inoculator

PendingCN122582328Aprecise positioningStable and reliable
The application discloses a kind of bag cultivation inoculator sterilization method, including sequentially closed loop interface's before sterilization positioning verification preparation, collaborative steam sterilization negative feedback control, gradient pressure reduction pollution prevention time interlocking, strain pipeline preflushing and residual, terminal double sterilization, standardization reset and automatic inoculation trigger six steps, between each step through cross-post operation authority separation, state verification interlocking and negative feedback control mechanism Form one-way irreversible whole-process anti-bacterial closed loop system;Wherein, the state verification of previous step does not pass, inoculator control system is automatically locked and prohibited to enter next step.The application has the advantages of whole-process anti-bacterial, high degree of automation, safe and reliable operation, stable sterilization effect and traceability.
Owner:HEBEI HONGTAI AGRICULTURAL DEVELOPMENT CO LTD

Light-weight electric arc extinction switch capable of disconnecting mutual inductor lead simultaneously

The invention discloses a light electric arc extinction switch capable of disconnecting mutual inductor leads synchronously, and relates to the technical field of power system automation equipment. Comprising an external insulating cover and an internal arc extinguishing device. The top of the external insulating cover is provided with a first incoming line wiring assembly matched with the access of a high-voltage incoming line, and the incoming line wiring assembly comprises a vacuum switch chamber; the internal arc-extinguishing device comprises an arc-extinguishing insulating rod, a voltage release assembly and an insulating rod movement distance regulation and control assembly which are installed at the lower section of the arc-extinguishing insulating rod body, a second incoming line wiring assembly which is installed at the upper section of the arc-extinguishing insulating rod body and cooperates with equipment incoming line access, and a switch insulating block which is installed at the top of the arc-extinguishing insulating rod and cooperates with the vacuum switch chamber. And the control module is used for controlling the access and cut-off of incoming current. The light electric arc extinction switch remotely controls connection and disconnection of incoming line current, and works by taking vacuum as an arc extinction medium based on a zero arc extinction principle, so that generation and extinction of contact arcs are carried out in the vacuum.
Owner:CHUXIONG POWER SUPPLY BUREAU OF YUNNAN POWER GRID CO LTD

Hydraulic hanging frame and soil preparation machine thereof

The utility model discloses a hydraulic hanging rack and a land preparation machine thereof, and belongs to the technical field of agricultural machinery equipment, the hydraulic hanging rack comprises a hydraulic hanging rack mechanism and four hooks which are arranged on a fixed rack, the fixed rack is hinged with a folding rack, the hydraulic hanging rack mechanism comprises two concave racks which are vertically and symmetrically arranged, two connecting frames are fixedly connected between the two concave frames, the connecting frames are fixedly connected with the fixed rack, the four ends of the two concave frames are rotationally connected with four symmetrically-arranged swing frames through first rotating shafts, and a connecting shaft is rotationally connected between every two opposite swing frames through a second rotating shaft; a hydraulic oil cylinder is rotationally connected between the two second rotating shafts, and inserting grooves are formed in the ends, far away from each other, of the four swing frames. The hydraulic rack mechanism and the four hooks are arranged, the fixed rack and the folding rack are locked through the four hooks, locking is more stable and firmer, the structural strength is high, and safety is high.
Owner:XUZHOU ZHONGYANG AGRI MASCH CO LTD

Electric Bolt Locks and Glass Door Locks

The present invention provides an electric bolt lock and a glass door lock. The electric bolt lock of the present invention is installed on a door frame, and includes a main lock body and a positioning assembly arranged in the main lock body, wherein a first electromagnet for driving a lock tongue to extend or retract the main lock body is arranged in the main lock body, and an elastic reset member arranged in the main lock body and connected to the lock tongue is arranged, and a limiting portion is constructed at the other end of the first electromagnet relative to one end connected to the lock tongue, the positioning assembly is located at one end of the first electromagnet, and the positioning assembly has a limiting end face that flips back and forth relative to the main lock body, and the limiting portion abuts against the positioning assembly. Due to the drive of the first electromagnet, the limiting portion pushes the limiting end face to rotate and abuts against the limiting end face to form a position-keeping state of the lock tongue on the main lock body. The electric bolt lock described in the present invention has an ingenious structural design, and can maintain the positioning state of the lock tongue after instantaneous power-on.
Owner:HEBEI JUECHENG SECURITY EQUIP CO LTD

Distributed fiber grating writing device and writing method based on roll-to-roll

The present invention belongs to the field of optical fiber writing, and specifically relates to a distributed optical fiber grating writing device and writing method based on roll-to-roll, wherein the device includes an optical fiber transmission mechanism, a femtosecond laser optical fiber writing mechanism and an online monitoring mechanism; the optical fiber transmission mechanism includes an unwinding roller, an optical fiber guiding mechanism and a winding roller arranged in sequence, and the optical fiber guiding mechanism is used to move the optical fiber in a straight line direction in the writing area; the online monitoring mechanism includes a light source and a spectrometer, the light source rotates synchronously with the unwinding roller and is connected to the head end of the optical fiber in the unwinding roller, and the spectrometer rotates synchronously with the winding roller and is connected to the tail end of the optical fiber in the winding roller. The present invention arranges a light source to rotate synchronously on the unwinding roller, arranges a spectrometer to rotate synchronously on the winding roller, injects optical information into the optical fiber through the light source, receives optical signals through the spectrometer, and feeds back whether the operation of writing is normal, thereby monitoring the writing status in real time.
Owner:NAT UNIV OF DEFENSE TECH

Mutant gene of rice wax gene Wx and its application

The present invention discloses a mutant gene of a rice wax gene Wx and its application, wherein the nucleotide sequence of the mutant gene is shown in SEQ ID NO. 1. The present invention finds that a T→C base mutation at the 202nd position of the 9th exon of the rice wax gene Wx will increase the content of resistant starch in rice, and the mutant gene of the rice wax gene Wx is a gene closely related to high resistant starch content; a primer pair is designed according to the mutation site of the mutant gene, and then the rice genomic DNA is amplified, and nucleic acid electrophoresis is used to effectively detect whether the rice variety is a rice variety with a high resistant starch content, and the genotype of the rice seedlings before transplanting can be quickly identified, so that selective transplanting can be performed, which greatly improves the selection efficiency of rice varieties with high resistant starch content and accelerates the breeding process.
Owner:CHONGQING ACAD OF AGRI SCI

A high-creep-resistant ultrahigh molecular weight polyethylene fiber modified by boron nitride with carbon-hydrogen linkage and a preparation method thereof

This invention belongs to the field of ultra-high molecular weight polyethylene (UHMWPE) fiber modification technology, specifically relating to a hydrocarbon-linked boron nitride-modified UHMWPE fiber with high creep resistance and its preparation method. The fiber comprises an UHMWPE matrix and hydrocarbon-linked grafted boron nitride dispersed therein; the hydrocarbon-linked grafted boron nitride is obtained by grafting ω-heptadecenylphosphonic acid onto the surface of hydroxylated nano-hexagonal boron nitride, exhibiting a dual physical crosslinking mechanism. The preparation method includes preparing hydroxylated nano-hexagonal boron nitride, preparing hydrocarbon-linked grafted boron nitride, and preparing high creep-resistant UHMWPE fiber. The method of this invention can significantly improve the creep resistance of the fiber, exhibiting mechanical stability, with a creep rate ≤1.5% after 1000 hours of stress loading at 200 MPa at room temperature. This invention features a simple process, strong adaptability, mild and controllable process parameters, low equipment modification costs, and is easy to industrialize.
Owner:SHANDONG NANSHAN TEXTILE GARMENT +1

A HUD image position adjustment device, related equipment and implementation method

The present invention provides a HUD image position adjustment device, related equipment and implementation method, including an adjustment area, a photoelectric switch, a fan-shaped baffle, a stepper motor and a reflector, the photoelectric switch is fixed in the adjustment area, the fan-shaped baffle is driven by the stepper motor and rotates around the rotation point, and the reflector rotates with the fan-shaped baffle, and the adjustment area includes: a first area, which is a target adjustment area; a second area, which is an area between the photoelectric switch and the upper limit line; a third area, which is a fan-shaped baffle area; a fourth area, which is an area between the target adjustment area and the photoelectric switch; a fifth area, which is an area between the fan-shaped baffle and the photoelectric switch when the fan-shaped baffle is in a closed position, and the fan-shaped baffle is in a closed position when it contacts the lower limit line; wherein, the angle of the third area>the angle of the second area>the angle of the first area, the angle of the fourth area, the angle of the fifth area, and the angle of the third area≤the angle of the adjustment area. The present invention has a simple structure, low cost and reliable stability.
Owner:SHANGHAI NAEN AUTOMOTIVE TECH CO LTD

Safety heavy-duty grinding wheel

The utility model relates to abrasive wheel technical field, especially safety type heavy load abrasive wheel, the utility model adopts the technical scheme: including the cylindrical abrasive wheel main part structure of central shaft is left and right direction, the outer cylindrical surface of abrasive wheel main part structure is equipped with the main body heat -resisting safety groove of uniform distribution, the left and right two end surface of abrasive wheel main part structure is equipped with the symmetrical conical center cooperation safety groove, the inboard position of center cooperation safety groove is equipped with conical stable combination safety groove, the size of inboard position of stable combination safety groove is greater than the size of the center cooperation safety groove connection position, the center position of stable combination safety groove is equipped with the integrated reinforcing center cooperation column, the utility model has the advantages of: can cooperate with reinforcing installation accessories and carry out the fastening cooperation of inlay type, and the cooperation position deforms outward after fastening, can form reliable anti -looseness cooperation effect, guarantees the overall bearing capacity of abrasive wheel when using is stronger, and the shock resistance is better.
Owner:JIANGSU HEAVY DUTY GRINDING WHEEL CO LTD

A scanning examination bed with multiple body position adjustments

The present invention is applicable to the technical field of CT examination beds, and provides a multi-position adjustable scanning examination bed, including a fixed bed board and a movable bed board, wherein the fixed bed board is supported on a fixed mounting bracket assembly; the movable bed board is supported and mounted on a movable slide by an angle adjustment device, and the position of the movable slide is adjustably set on the bracket assembly. In the specific implementation of the multi-position adjustable scanning examination bed provided by the present invention, firstly, the position of the movable slide relative to the bracket assembly is adjusted according to the height and body shape of the patient, that is, the position of the movable bed board relative to the fixed bed board is adjusted, and then the inclination angle of the movable bed board is adjusted based on the angle adjustment device, so that the inclination angle of the movable bed board meets the patient's usage requirements, wherein the movable bed board is used to effectively support the patient's waist and back.
Owner:FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA

Self-adaptive pure azimuth pseudo-linear Kalman filtering tracking method

The invention discloses a self-adaptive pure azimuth pseudo-linear Kalman filtering tracking method, and belongs to the technical field of pure azimuth target tracking, and the method comprises the steps: obtaining the observation information of target sonar detection on a target through ad hoc network communication; the residual error is updated in real time by using observation information, and the observation variance of Kalman filtering is corrected so as to position a target; and after the target is successfully positioned, the position of the target is corrected in real time by using adaptive pseudo-linear Kalman filtering. A traditional adaptive EKF algorithm is utilized to optimize and improve a traditional deviation compensation PLKF algorithm so as to perform stable and reliable target tracking.
Owner:CHINA SHIP DEV & DESIGN CENT

Knee joint osteotomy locking plate

The invention discloses a knee joint osteotomy locking plate which comprises a plate body, the plate body is provided with a head area, a stem area and a wing plate area, the head area, the stem area and the wing plate area are arranged in a triangular structure, a bending long groove is formed between the stem area and the wing plate area, and the wing plate area can be bent, so that the plate body is attached to the bone surface of a patient. The head area, the stem area and the wing plate area form a triangular structure, the fixing effect of the locking plate is enhanced, and the bent long groove is formed between the stem area and the wing plate area, so that medical staff can bend the wing plate area of the plate body according to the bone size of a patient during an operation, and the locking plate is attached to the bone surface of the patient. The head area, the stem area and the wing plate area are integrally fixed, the angulation stability is good, the stabilizing effect is more reliable, the angulation fixing device can adapt to different patients, patients with small bones can be fixed in a better fit mode, and bone healing can be accelerated.
Owner:BEIJING CHUNLIZHENGDA MEDICAL INSTR

Plastic packaging box with multi-layer structure

The utility model relates to the technical field of packaging boxes, in particular to a plastic packaging box with a multi-layer structure, which comprises a bottom box, a stacking box mounted at the top of the bottom box, a top box mounted at the top of the stacking box, side plates mounted on two sides of the bottom box, the stacking box and the top box, sliding rails fixedly connected with one ends, close to each other, of the side plates, and sliding rails fixedly connected with the sliding rails. Sliding grooves are formed in the two sides of the bottom box, the two sides of the stacking box and the two sides of the top box correspondingly and are in sliding connection with the sliding rails, limiting assemblies used for limiting the bottom box, the stacking box and the top box from sliding relative to the side plates are installed at the front ends of the bottom box, the stacking box and the top box correspondingly, and stacking assemblies used for fixing the stacking box are installed at the rear ends of the side plates correspondingly. According to the plastic packaging box with the multi-layer structure, the stacking assembly is controlled only by shifting the push block, and then the stacking box can be assembled and disassembled; when one layer of the packaging box is opened, the rotary knob is rotated to be matched with sliding operation, so that the advantages that the number of layers can be flexibly adjusted, single-layer opening is convenient, and connection is stable and reliable are achieved.
Owner:DONGGUAN KEYING PLASTIC MOLD CO LTD

Stabilization system of photoelectric detection device

The invention discloses a stabilizing system of a photoelectric detection device. The stabilizing system comprises an environment monitoring module, a temperature adjusting module, a vibration suppression module, an optical anti-vibration module and a power supply stabilizing module. The high-precision sensor for environment monitoring acquires data and transmits the data to the control center. The temperature is controlled to be [15 DEG C, 35 DEG C] according to temperature data. Vibration suppression comprises an elastic element and active damping, and the net acceleration is within + / -0.1 m / s < 2 >. And the angular deviation of the optical anti-shake control optical path is within + / -0.05 degrees. The power supply stability comprises a voltage stabilizing power supply and a standby power supply, and V (t)-V0 is within + / -0.1 V. The stabilization system effectively improves the stability of the photoelectric detection device. Environmental monitoring ensures a suitable working environment, temperature adjustment ensures stable performance, the vibration suppression module, the optical anti-vibration module and the power supply stabilization module respectively solve the problems of vibration, jitter and power supply, and the accuracy and reliability of a detection result are improved.
Owner:LIANYUNGANG HUIGU INFORMATION TECHNOLOGY CO LTD

A button electrode and collar for borehole resistivity measurement while drilling

The application relates to a button electrode and a drill collar for a while-drilling azimuthal resistivity measurement, which comprises a measuring electrode, an electrical unit, an insulator, a seal, an electrode cover plate, a plurality of conductive columns, a cabin body and an insulating pad; the plurality of conductive columns are arranged at the upper end of the measuring electrode; the measuring electrode, the insulator and the electrode cover plate are fixedly connected with the cabin body; the insulator is arranged between the measuring electrode and the electrode cover plate, and the electrode cover plate presses the insulator, and the insulator presses the measuring electrode; the insulator and the measuring electrode are provided with the seal at the matching position, and the insulator and the electrode cover plate are provided with the seal at the matching position; the electrical unit is arranged in a containing cavity formed by the measuring electrode and the cabin body, and the electrical unit is electrically connected with the measuring electrode; and the containing cavity is filled with a fluid medium. Under the conditions of high temperature, high pressure, high erosion and vibration in the well, the structure of the button electrode is more sealed, more insulating, more stable and longer in working time than the structure of the injection-molded button electrode in the prior art.
Owner:CHINA NAT PETROLEUM CORP +2