1255 results about "Linear arrays" patented technology

The invention provides a coherent signal arrival direction estimation method and device based on a deep convolutional network, and belongs to the field of array signal processing. The method comprises the following steps: receiving a to-be-detected signal containing a coherent signal by using a uniform linear array antenna to obtain an array receiving data matrix and extract a covariance matrix; forming an input feature vector by right upper triangular elements divided from a diagonal line in the covariance matrix, inputting the input feature vector into a covariance estimation model formed by a deep convolutional network, obtaining an estimation value of the right upper triangular elements under an ideal incoherent condition, and reconstructing the estimation value to obtain a covariance matrix estimation value; and performing characteristic decomposition on the covariance matrix estimation value, and generating a spatial spectrum by using a MUSIC algorithm to obtain an estimation result of the signal arrival direction. According to the method, the noise-containing mixed signal covariance matrix is mapped into the ideal incoherent noise-free signal covariance matrix through a physical constraint supervised learning framework, so that the estimation precision and robustness of the MUSIC algorithm in a coherent scene are improved.

The invention relates to the technical field of satellite internet, and discloses a low-orbit satellite phased array multi-beam interference modeling and suppression method and system, and the method comprises the steps: selecting a Kaiser window as a core filtering method, and achieving the optimization of beam characteristics through the dynamic adjustment of a shape parameter beta; generating an initial beam directional diagram based on a digital phase matching method, and multiplying the Kaiser window function coefficient by the excitation weight of the 64-array-element linear array element by element to realize spatial domain weighted filtering; the method comprises the following steps: constructing a training data set containing multi-scene interference characteristics, calculating a corresponding covariance matrix and an accurate inverse matrix thereof to form a sample pair, designing a deep neural network architecture, inputting a flattened covariance matrix vector, and learning a complex nonlinear mapping relation from the covariance matrix to the inverse matrix through a multi-layer full-connection structure; a mean square error is used as a loss function to constrain network output precision, and a multi-beam interference system model is constructed; according to the invention, stable and efficient communication of the low-orbit satellite system in a complex electromagnetic environment and under rapid channel change is ensured.

A station keeping waterfowl system includes at least one self propelled station keeping waterfowl decoy and a homing buoy each having water resistant housings, with at least a portion of the decoy housing having a form of a waterfowl. The decoy and buoy each include batteries, microprocessors, and power switches. The decoy includes a motor driven propeller, a motor driven rudder, and a receiving array of antennae for radio direction finding and radio ranging to the buoy. The receiving array is a T-array of antennae comprising a first transverse linear array and a second longitudinal linear array. The homing buoy emits a homing signal and the one or more waterfowl decoys autonomously navigate to remain within a predetermined radius around the buoy. The system includes a simple handheld controller which preferably comprises no more than two switches or buttons.

Base station antennas include a reflector, a first linear array of radiating elements extending forwardly from the reflector, the radiating elements in the first linear array configured to operate in a first frequency band, and a second linear array of radiating elements extending forwardly from the reflector, the radiating elements in the second linear array configured to operate in the first frequency band. These antennas further include an isolation wall that is positioned in between the first linear array of radiating elements and the second linear array of radiating elements. This isolation wall comprises at least one partially reflective surface that is configured to reflect, on average as a function of frequency, between 20% and 80% of incident radiation in the first frequency band.

An optical arrangement for a LIDAR system includes a laser, scanner, fold mirror, lens, and sensors. Adding a wedge-shaped optical element creates an auxiliary field of view, when positioned to overlie an edge portion of the lens. The wedge-shaped optical element may have a variable transparency preventing reception by the sensors of excessive signals from close targets. The sensors may be: a plurality of sensors with unique lengths / widths, arranged to form a linear array; or sensors with the same length / width, but positioned to form an arcuate shape, compensating for an arcuate scan line; or two columns of sensors, one with a field of view in focus at far field positions, and the other in focus at near field positions, correcting for parallax effect / error; or a column of highly sensitive sensors surrounded by a plurality of guard rail sensors having higher immunity to damage from stray laser light.

The invention relates to a high-signal-to-noise-ratio ultrasonic imaging method and device for internal defects of a curved surface component, a medium and a product, and belongs to the technical field of ultrasonic imaging. According to the method, a linear array ultrasonic probe is adopted to carry out single-time ultrasonic excitation on a curved surface component, a full-matrix echo signal is obtained, first arrival time extraction is carried out on the collected signal, an ultrasonic incident angle is estimated, and discrete coordinates of the surface of the component are obtained; the method comprises the following steps of: fitting a curved surface model, constructing an equivalent virtual array model, calculating transmitting and receiving delay time of each pixel point, realizing initial full-focusing beam forming of signals, estimating an expected signal variance and a noise variance based on maximum likelihood estimation, constructing an initial coherent beam forming machine and performing iterative updating, and finally forming a beam. And taking the coherent beam synthesizer obtained by iteration as a weighting factor, acting on an initial beam synthesis signal for weighting, and completing image reconstruction. The method has the advantages of being high in calculation efficiency, low in system overhead, high in imaging signal-to-noise ratio and the like, and accurate imaging can be achieved in a curved surface structure scene.

Wake-word processing by a wearable electronic device could be carried out when the device is worn by a user and is in a device sleep state, the device including a linear microphone array having at least two microphones vertically spaced from each other, and the device also including a processor. And the example method could involve (i) the at least two microphones of the linear microphone array receiving an audio waveform representing a wake-word utterance, (ii) the processor making a determination, based at least on an angle of arrival of the audio waveform at the at least two microphones of the linear microphone array and / or an energy level of the audio waveform received at the at least two microphones of the linear array, of whether to accept the wake-word utterance or rather to reject the wake-word utterance, and (iii) the processor controlling operation of the device based on the determination.

The invention relates to the field of underwater sound signal processing, in particular to an underwater DOA (direction of arrival) estimation method based on graph nerves and a convolutional neural network, which comprises the following steps: 1, establishing a linear array, and enabling narrow-band signals to simultaneously reach an underwater sound array; 2, performing signal preprocessing to obtain a signal covariance matrix, and performing normalization processing; 3, extracting correlation between array elements and spatial features of array signals, and performing data supplementation on sparse linear array information; 4, forming a double-branch structure, enhancing the information aggregation capability, and extracting features from a space path and a time domain path; and 5, constructing an adjacent matrix, filling node features of damaged array elements, adopting a double-branch structure, extracting spatial features and time domain features, carrying out feature integration, and outputting a DOA estimation result. The spatial correlation between array elements is extracted and the array sparsity problem is processed by using the graph neural network, and the time domain features of the signals are extracted in combination with the convolutional neural network, so that more accurate and more robust DOA estimation can be realized under the conditions of low signal-to-noise ratio and array sparsity.

The invention relates to the technical field of reaction kettles.The reaction kettle comprises a kettle body, a protective cover is fixedly connected to the top of the kettle body, a feeding opening is formed in the top of the kettle body in a penetrating mode, a supporting plate is fixedly connected to the bottom of the interior of the kettle body, and stirring shafts are rotationally connected to the interiors of the supporting plate, the kettle body and the protective cover; the stirring shaft is located at the center of the kettle body, the surface of the stirring shaft is fixedly connected with three stirring blades, the three stirring blades are distributed in a linear array from top to bottom, and the bottom of the stirring shaft is fixedly connected with a paddle. Through the heterogeneous sensing network constructed by the multi-parameter sensing subsystem, synchronous monitoring of multi-dimensional physical quantities such as discharge port pressure, stirring torque and kettle wall vibration is realized, the limitation of traditional single parameter monitoring is broken through, and the early recognition precision and reliability of the crystallization blockage risk are greatly improved.

The utility model provides a branching device for a distribution box, which relates to the technical field of distribution boxes and comprises a distribution box body, one side of the distribution box body is provided with a wire inlet hole, the rear inner wall of the distribution box body is provided with a bunch adjusting mechanism, and the bunch adjusting mechanism comprises a fixed support. The two fixing supports are symmetrically distributed and fixedly connected with the rear inner wall of the distribution box body, the front faces of the fixing supports are fixedly connected with limiting plates, the upper ends of the limiting plates are provided with limiting grooves distributed in a linear array mode, the front faces of the fixing supports are provided with movable sliding grooves, and the inner walls of the movable sliding grooves are slidably connected with movable sliding blocks distributed in a linear array mode. Through the bunch adjusting mechanism, the branching cable can be conveniently clamped, cables of different sizes can be stably clamped, the application range is wide, the branching cable is independently locked, the situation of batch movement and dislocation during adjustment is avoided, the operation is convenient, and the practicability is high. And the wiring efficiency is greatly improved.

The invention specifically discloses a satellite navigation interference source positioning method based on a distributed unmanned aerial vehicle, and relates to the technical field of satellite navigation interference resistance. According to the method, firstly, an unmanned aerial vehicle cluster carrying uniform linear array antennas is deployed in a target area, and after parameters of a system are initialized, all unmanned aerial vehicles synchronously collect interference signals and estimate the direction of arrival (DOA) of an interference source; then performing dual-domain interference suppression based on DOA information, calculating an interference source coordinate in combination with an unmanned aerial vehicle coordinate, and performing noise reduction; planning a path by using a path planning model of a multi-modal Markov decision process and a reinforcement learning algorithm to realize tracking of a dynamic interference source; and finally, judging and outputting a final coordinate through Euclidean distance convergence. The method solves the problems of limited coverage of a traditional fixed monitoring station and insufficient positioning precision of a single unmanned aerial vehicle, can efficiently position dynamic and multiple interference sources, improves the positioning precision and the anti-interference capability, reduces the deployment cost, and is suitable for satellite navigation interference source positioning in a complex environment.

The invention discloses detection equipment for power battery recycling, and belongs to the technical field of recycling detection, the detection equipment comprises a base plate, two symmetrically arranged support plates are connected to two sides of the top of the base plate, and a plurality of conveying rollers distributed in a linear array are rotatably connected between the two support plates. According to the invention, through the cooperation of the positioning and clamping assembly, the lifting push rod and the lifting groove seat, automatic supporting and accurate positioning of the power battery are realized, and stable support is formed when the lifting groove seat passes through the conveying roller, so that the stability of the battery in the detection process is ensured; a transmission gear, a connecting rack, a positive and negative lead screw and a second lead screw seat drive a clamping plate to relatively move, self-adaptive clamping of the side edge of the battery is achieved, an elastic buffering mechanism of a sliding rod and a supporting spring is matched, the battery clamping device is effectively compatible with batteries of different sizes and specifications, the universality of the device is improved, the clamping force is dynamically adjusted through counter-acting force in the clamping process, and the clamping efficiency is improved. The surface damage of the battery is avoided, and meanwhile, the clamping firmness is ensured.

The utility model discloses a knob type mechanical self-locking mechanism which comprises a fixing rod, a sliding rod is connected to the inner wall of the fixing rod in a sliding mode, positioning holes are formed in the outer wall of the sliding rod in a linear array mode, the appearance of the positioning holes is round, and a self-locking mechanism is fixedly connected to the top of the fixing rod. The outer wall of the self-locking mechanism is fixedly connected with a limiting mechanism, and the self-locking mechanism comprises a fixing ring. According to the rotary knob type mechanical self-locking mechanism, the bottom of the rotary knob abuts against and makes contact with the top of the sliding buckle by rotating the rotary knob, due to the particularity of the appearance of the bottom of the rotary knob and the appearance of the top of the sliding buckle, when force generated when the bottom of the rotary knob makes contact with the top of the sliding buckle is enough, the sliding buckle can move towards the bottom, and the sliding buckle drives the positioning block to move synchronously; and the outer wall of the positioning block is inserted into the inner wall of the positioning hole, so that self-locking is completed, the sliding rod cannot continuously slide on the inner wall of the fixed rod, and the self-locking effect is achieved.

The invention discloses a multi-mode control method for voice interaction and gesture recognition of an atmosphere lamp, and belongs to the field of intelligent control. The method comprises the following steps: S1, constructing a multi-mode sensing module, and arranging a bidirectional linear array microphone, a dual-lens infrared depth camera and a space calibration laser transmitter; s2, extracting voice features by adopting an extended spectrogram domain attention network, and generating a first semantic vector; s3, dynamic attitude features are extracted through the time-airspace sparse convolutional network; s4, performing modal alignment and cooperative coding on the two semantic vectors based on a bidirectional gating fusion mechanism, generating a joint interaction instruction vector, and solving modal conflicts by a time sequence synchronization and confidence regulation strategy; s5, inputting the vector into a multi-task intention classifier, analyzing a user intention and outputting a unique atmosphere lamp control code; and S6, transmitting the control code to a driving unit to realize light control. The beneficial effects are that voice and gesture fusion control is realized, and atmosphere lamp interaction intelligence and response precision are improved.

A hybrid scanning antenna including: a reflector having a focal line; a first mechanical movement to move the reflector about a first axis; a second mechanical movement to move the reflector about a second axis; a linear array fixedly disposed along the focal line to electronically scan at a scan angle about a third axis; and a controller to control the first mechanical movement, the second mechanical movement and the scan angle of the linear array to orient the hybrid scanning antenna to a look angle of a remote transceiver.

The invention provides a single-bit digital beam forming method and device, a terminal and a medium, and relates to the technical field of radar detection and wireless communication, and the method comprises the steps: constructing a target single-bit low-rank matrix recovery model of a uniform linear array comprising a plurality of sensors, and an optimization problem of the target single-bit low-rank matrix recovery model, and converting the target single-bit low-rank matrix recovery model into a processable problem, solving and determining a low-rank matrix by using a near-end block coordinate descent algorithm and a gradient descent algorithm, calculating an estimated covariance matrix of a target and an interference signal based on the matrix, performing eigendecomposition to calculate an interference subspace, and modeling a single-bit digital beam forming problem according to a base vector of the interference subspace to obtain a single-bit digital beam forming matrix. And calculating a closed-form solution based on the principle that the optimal solution is located in the orthogonal complement space of the interference subspace. According to the method, the resolution requirement of the analog-to-digital converter can be reduced by fully utilizing the single-bit quantization characteristic, and the beamforming performance of single-bit digital beamforming is close to that of high-bit digital beamforming when the hardware complexity and the power consumption are reduced.

The invention relates to the technical field of paper processing, in particular to a splitting machine paper feeding device which is characterized in that a discharging module, a material guide roller set, a deviation rectifying module, an adsorption module and a material conveying roller set are sequentially mounted between two parallel side plates in the paper moving direction, and the material conveying roller set is driven by a fourth motor; a second detection module is mounted between the deviation rectifying module and the adsorption module; the adsorption module comprises a box body fixedly installed between the two side plates, a plurality of bearing rollers are rotationally installed in the box body in a linear array shape, notches corresponding to the bearing rollers one to one are formed in the top of the box body, the tops of the bearing rollers penetrate through the notches and are flush with the top of the box body, and the box body is connected with the air inlet end of a fan through an air pipe; each side plate is provided with a plurality of pressing wheel modules which are distributed in a linear array mode, and wheel bodies of the pressing wheel modules are located above the box body. The paper slitting device can ensure that paper cannot deviate before slitting.

The invention relates to the technical field of sludge dewatering, and discloses a water supply and drainage sludge dewatering machine which comprises a filter pressing rack, two mounting frames are fixedly mounted on the filter pressing rack, a plurality of mounting holes distributed in a linear array are formed in the mounting frames, rotating rods are rotatably mounted in the mounting holes, and the rotating rods are connected with the filter pressing rack. A mud blocking block matched with the upper filter pressing belt is fixedly mounted at the bottom of the rotating rod, a gear is fixedly mounted at the top of the rotating rod, a rack meshed with the gear is mounted on the mounting frame in a sliding manner, cams are symmetrically and rotationally mounted at the two ends of one mounting frame, and a pre-pressing assembly is arranged on the filter pressing rack; the mud blocking block is driven to turn over during use, so that periodic alternation of sludge separation positions is realized, areas, bearing pressure, of the filter pressing belt are uniformly distributed, abrasion acceleration caused by local continuous high load is avoided, the overall service life of the filter pressing belt is prolonged, the switching action of the mud blocking block is synchronous with the movement of the filter pressing belt, and continuous and stable operation of equipment is guaranteed.

The invention discloses an Internet of Vehicles-oriented MLE and UKF combined speed sensing and prediction beam forming method, which comprises the following steps of: establishing a two-dimensional coordinate model of a uniform linear array in a near-field uplink narrow-band transmission scene, and accurately describing a relative position and a motion state between a target and a base station; according to a near-field channel model, calculating propagation characteristics of echo signals received by each antenna unit; a speed estimation problem is converted into an unconstrained optimization problem to be solved by taking minimization of a loss function of observation data as a target, and the speed of a target vehicle is estimated by using received echo signals and target expected position information; taking the speed estimated by the MLE from the echo signal as an observed value of the UKF, and iteratively optimizing the estimation precision of the state of the target vehicle in combination with a state prediction and updating mechanism of the UKF; and according to the optimized motion state of the target vehicle, a beam forming scheme is designed, data transmission is carried out, and communication rates under different conditions are evaluated. According to the invention, prediction precision and communication performance in a mobile scene are effectively improved.

A traction battery assembly includes a plurality of battery cells arranged in a linear array, a substrate supporting the array, and an insulator assembly. The insulator assembly has outer compressible layers, at least one thermal insulation layer, and a metal layer. The metal layer includes a metal plate encapsulated in a dielectric material such that all surfaces of the metal plate are covered by the dielectric material, wherein the layers are secured to each other to form a unitary stack with the metal layer being disposed against the at least one thermal insulation layer and with the metal layer, the at least one thermal insulation layer is disposed between the outer layers, and the insulator assembly is disposed between an adjacent pair of the battery cells and is received on the substrate such that a portion of the dielectric material is between the substrate and the metal plate.

The invention relates to the technical field of array radiation pattern synthesis, in particular to a linear array radiation pattern synthesis method and system based on hybrid optimization. The method comprises the following steps: obtaining dipole array optimization parameter data; initializing an array parameter and an FGO population according to the acquired data; constructing a KAN proxy model and training the model by using an FGO population; performing hybrid iterative optimization on the KAN proxy model fused with the FGO; and performing array antenna pattern synthesis by using the optimized KAN proxy model. According to the probability hybrid evaluation strategy based on the KAN proxy model, through the whole FGO iteration process, low-potential candidate solutions are effectively screened out by dynamically allocating accurate electromagnetic simulation resources (such as high-proportion proxy evaluation in the initial stage and gradually-increased accurate verification in the later stage), and the calling frequency of a high-cost moment method is remarkably reduced.

The invention relates to the field of concrete beam damage detection, in particular to an ultrasonic imaging method for concrete beam damage detection, which comprises the following steps: arranging a linear array comprising a plurality of ultrasonic probes on a single-side contactable surface of a to-be-detected concrete beam; preparing a multi-channel ultrasonic transmitting and receiving instrument, and connecting the multi-channel ultrasonic transmitting and receiving instrument with the sensor array and the control computer; a multi-channel ultrasonic device is used to work in a full-matrix capture mode, in the full-matrix capture mode, each probe is sequentially excited to emit ultrasonic pulses, and time domain signals received by all the probes of the array are synchronously recorded to obtain an original full-matrix data set. According to the method, strong scattering noise generated by the concrete aggregate can be inhibited through the deep convolutional neural network so as to improve the signal-to-noise ratio of the image, the sound velocity field conforming to the non-uniform characteristic of the concrete can be constructed through local sound velocity inversion and iteration based on the strong reflection points, the problems of imaging artifacts and form distortion are avoided, and the accuracy of the imaging process is improved. And the concrete damage detection precision is ensured.

The application discloses a kind of based on ultra-wideband radar's on the scraper conveyor up and down slide monitoring device and method, belong to coal mine safety state monitoring technical field.The monitoring device includes the electric rotating platform installed on the head of scraper conveyor, linear array antenna pointing to the end face end coal wall is installed on the electric rotating platform, linear array antenna connects ultra-wideband imaging radar signal module;Industrial computer sends instruction to control the receiving and sending of ultra-wideband imaging radar signal module, the rotating movement of electric rotating platform respectively;Linear array antenna installed on the head of scraper conveyor is driven by electric rotating platform, periodically collects the radar image of end face end, then by registration with the image periodically collected before, to deduce the distance that the head of scraper conveyor up and down slide;It has strong robustness to the harsh environmental conditions of end face end coal dust water vapor, and monitoring data is accurate.

The invention discloses a pediatric infant tracheal foreign body taking-out device in the technical field of pediatric oral cavities, which comprises foreign body forceps and an endoscope, and further comprises an inflatable outer pipe sleeve, an inner sleeve is arranged in the outer pipe sleeve, and a plurality of connecting rods are arranged between the inner sleeve and the outer pipe sleeve. Two ends of the connecting rod are fixedly connected with the outer wall of the inner sleeve and the inner wall of the outer sleeve respectively; a plurality of annular grooves are formed in the outer wall of the outer pipe sleeve in a linear array mode in the axis direction, liquid collecting grooves are formed in the inner bottom walls of the annular grooves in the circumferential direction, and a plurality of first adsorption holes are formed in the inner side walls of the liquid collecting grooves in an annular array mode. Friction force between the expanded outer pipe sleeve and the trachea of the infant is increased through the annular groove, meanwhile, when secreted liquid in the liquid collecting groove is sucked through the first adsorption holes, certain negative pressure is formed in the annular groove, the stabilizing force between the inner wall of the trachea of the infant and the outer wall of the outer pipe sleeve is further increased, and therefore the situation that the outer pipe sleeve slides due to disordered movement of the child is reduced; and the foreign body forceps fall off the protection range.

The utility model relates to the technical field of cable wall, especially a kind of anticorrosive waste wooden block cable wall, including external frame, it is characterized by: the external frame inner wall is equipped with multiple longitudinal cables, the number of longitudinal cable is 10~15 and is arranged in the mode of equidistant linear array, the interval of the middle of the adjacent two longitudinal cables is 20~40cm, longitudinal cable is equipped with multiple waste wooden blocks associated with longitudinal cable, the top of external frame is equipped with solar power supply module, the anticorrosive waste wooden block cable wall structure in the application is supported with frame and cable, fastener fixes wooden block, guarantee strength and bearing capacity;Environment protection replaces new wood with anticorrosive waste wooden block, reduces consumption, cooperates and forms greening system with planting groove;Functionally, wooden block integrates storage grid and flower groove, anticorrosive treatment can resist damp and insect damage, stable and durable;Energy solar power supply module is used for power supply to realize night lighting for light belt;Anticorrosive wooden block reduces maintenance, and comprehensive performance is significantly improved.

The invention provides a chain surface crack flaw detection device, and relates to the technical field of chain processing. A chain surface crack flaw detection device comprises a processing box and a servo motor, the processing box is internally provided with two detection wheels, a detection mechanism is arranged between the two detection wheels, the detection mechanism comprises a plurality of detection rollers, the detection rollers are distributed in a linear array, and the servo motor is connected with the processing box. The front side walls and the rear side walls of the multiple detection rollers are rotationally connected with the inner side wall of the treatment box through connecting shafts. According to the chain surface crack flaw detection device, in the rotating process of the detection roller, the mounting shaft clamped with the guide notch in a sliding mode can make the mounting shaft perform periodic reciprocating motion in the front-back direction under the limiting effect of the limiting shaft, and the chain in the running state can be comprehensively detected for multiple times and at multiple angles in cooperation with movement of the chain; the detection accuracy is ensured, in the running process of the chain, the internal damage of the chain is more easily exposed, and the detection effect is further improved.

The utility model relates to the technical field of circulation drying, and discloses a tunnel type hot air circulation drying structure which comprises a bottom plate and a wind dispelling mechanism, ventilation shells are arranged on the outer wall of the bottom plate and symmetrically distributed on the outer wall of the bottom plate, a connecting port is formed in the side, away from the bottom plate, of each ventilation shell, and the ventilation shells are connected with the connecting port. A plurality of ventilation grooves are formed in the outer wall of the ventilation shell, the multiple ventilation grooves are distributed in the outer wall of the ventilation shell in a linear array shape, a filtering mechanism is arranged on the inner wall of the ventilation shell, and a limiting clamping column is fixedly connected to the inner wall of the filtering mechanism. According to the tunnel type hot air circulation drying structure, the filtering mechanism is arranged in the ventilation shell, when air passes through the ventilation shell to be dried, the air can be filtered by the multiple layers of dust filtering plates, springs are arranged outside the dust filtering plates, dust accumulation and air outlet blocking caused by collision of the dust filtering plates can be effectively avoided, and then the dust filtering effect of equipment is improved.

The invention relates to the field of postoperative protection facilities, in particular to a postoperative protection device for urinary surgery, which comprises a dressing, an air bag is pressed at the upper end of the dressing, a hook shell is fixedly mounted at the upper end of the air bag, two ends of the hook shell are hook-shaped, two ends of the dressing are positioned on the inner side of a hook-shaped part of the hook shell, and the hook-shaped part of the hook shell is fixedly connected with the dressing. A hook cover is clamped to the upper end of the hook shell, the two ends of the hook cover extend into the inner side of a hook-shaped part of the hook shell and press dressing, two sets of pulling plates are arranged on the front side and the rear side of the hook shell respectively, the number of each set of pulling plates is multiple, a connecting shaft is rotationally installed between the multiple pulling plates in a penetrating mode, and adhesive tape is arranged at the lower ends of the multiple pulling plates. A plurality of first drawstrings are connected to the front end of the hook shell in a linear array mode. By means of the device, discomfort of a patient caused by dressing replacement is avoided, meanwhile, operation such as disinfection can be conveniently conducted on an incision when the dressing is replaced, tension at the incision can be relieved when the patient moves, and healing is promoted.

The utility model discloses a diaphragm punching equipment, including processing platform, driving subassembly, punching subassembly, limit subassembly and collecting barrel, wherein the driving subassembly is divided into two groups, two groups of driving subassembly are respectively arranged on the processing platform, driving subassembly includes driving part, movable support and connecting seat, driving part is arranged on the processing platform, the movable support is connected with the connecting seat, and the limiting subassembly is connected with the connecting seat. The movable support is arranged at the output end of the driving component, the connecting base is arranged on the movable support, the punching assembly is arranged on the connecting base and comprises a top plate, multiple sets of punching components and a material pressing mechanism, the top plate is arranged on the connecting base, the multiple sets of punching components are arranged on the top plate in a linear array mode, and the material pressing mechanism is arranged on the top plate. The limiting assembly is arranged on the machining platform. Therefore, the diaphragm is limited, pressed and fixed in the punching process and is separated from the surface of the machining table after punching is completed, the diaphragm is convenient to replace, materials are ejected synchronously to prevent crushed materials from blocking material holes, cleaning is conducted in time, and the working efficiency is further improved.

The utility model relates to the technical field of wall body pouring, in particular to a template for wall body pouring, which comprises a pouring template and a connecting component, a shaping template is arranged on the outer side of the pouring template; the connecting assembly comprises two first connecting blocks, two second connecting blocks, a plurality of first bolts and nuts, wherein the two first connecting blocks and the two second connecting blocks are arranged on the pouring formwork, the first bolts are distributed in a linear array mode and arranged on the first connecting blocks in a penetrating mode, and the nuts are connected to the first bolts in a threaded mode and abut against the first connecting blocks. The second connecting block is in a T shape, an inserting groove matched with the second connecting block is formed in the first connecting block, and the first bolt penetrates through the second connecting block and is in threaded connection with the second connecting block. According to the utility model, not only can the defect that the pouring template has a larger gap during pouring be avoided, but also the mounting and dismounting operation steps of the shaping template can be optimized, and the practicability of the template is improved.