71 results about "Paddle" patented technology

The invention discloses a three-dimensional full-field deformation measurement method of a paddle. The method comprises the following steps of 1), designing and manufacturing an electronic speckle; 2), forming a camera set by means of multiple three-dimensional video units; 3) calibrating the inner diameter and the outer diameter of the camera set by means of a calibrating board with a coding mark point; 4) acquiring an image, realizing image grouping, and performing imaging matching on the grouped image; 5), performing three-dimensional analysis on the image which is matched in the step 4) by means of the inner parameter and the outer parameter of the camera set obtained in the step 3), and obtaining a three-dimensional point cloud of each paddle surface; and 6) based on the three-dimensional point cloud of each paddle surface obtained in the step 5), fitting the profile of the paddle, and obtaining three-dimensional full-field deformation of the paddle. The three-dimensional full-field deformation measurement method can be used for measuring anisotropic three-dimensional full-field dynamic deformation of the paddle and furthermore can be used for obtaining various movement parameters of the paddle. The three-dimensional full-field deformation measurement method has advantages of comprehensive measured data, high measurement accuracy, effective settlement for interference in complicated working conditions, and reliable data in paddle movement process.

A sound absorbing game paddle containing a blade having a support structure and a filling. The support structure preferably defines adjoining cells of various shapes, including for example hexagonal and non-hexagonal cells. The filling preferably comprises one or more of a foam, a gel, a silicone or other polymer, and can fill some or all of the cells at any desired volume(s). Contemplated methods include a manufacturer building a version of a game paddle without a filling, and subsequently building another version of the same or similar paddle with a filling. Further contemplated methods include developing an improved game paddle with altered sound emissions by determining that an existing game paddle has undesirable peak amplitudes and frequencies of sounds emitted, and then designing an improved game paddle with a sound absorbing filling.

The invention relates to a multi-zoned paddle screen apparatus (100) which is disclosed for separating fiber from a liquid medium during, for example, a grain wet mill or dry grind process. The apparatus includes a housing (106) having first and second zones (108a, 108b) situated adjacent one another along a length (L) of the housing (106). First and second screen sections (102a, 102b) having a plurality of openings (104) may be situated lengthwise within the housing (106) corresponding with the first and second zones (108a, 108b), respectively. The first and second screen sections (102a, 102b) have a circular cross-section, and the second screen section (102b) has a larger diameter than the first screen section (102a). An elongated shaft (130) situated lengthwise within the screen sections (102a, 102b) includes first and second conveyors (128a, 128b), which correspond with the first and second zones (108a, 108b), respectively, having a plurality of paddles (132). Each conveyor (128a,128b) is configured to move material in a direction along a length of the screen (102a, 102b). There may be more than two zones (108a, 108b).

The invention relates to a combined platform for gravity center measurement and correction for a paddle of a controllable-pitch propeller. The combined platform comprises a base, a lifting mechanism I, a weighing sensor, a measuring workbench, a fixture assembly, a paddle supporting assembly, a paddle space attitude measuring device and a polishing device, and is characterized in that the fixture assembly is used for fixing the position of a paddle base plate and comprises a V-shaped frame and a pressure head; the paddle supporting assembly is used for supporting the paddle and comprises a lifting mechanism II and a paddle contact ball head; the paddle space attitude measuring device comprises laser displacement sensor measuring device capable of moving a three-dimensional manner and an inclination angle measuring device; the inclination angle measuring device comprises a positioning shaft and an inclination angle sensor, and the positioning shaft can be matched with a base plate hole in the paddle base plate; and the polishing device comprises a six-degree-of-freedom manipulator and a polishing head. The combined platform not only can perform gravity center measurement and correction on the paddle and is high in measurement and correction accuracy and convenient to disassemble. In addition, the combined platform can also be applicable to paddles with various different sizes, thereby being high in universality. Furthermore, the combined platform can also perform gravity center measurement on any placement space attitudes of the paddle.

Embodiments are disclosed of a standup paddle (SUP) board comprising a substantially rectangular shape in outline and having a length dimension that is a whole number multiple of its width dimension. A plurality of link members are disposed at spaced-apart locations along the periphery of the board's deck. Each link member can function, in a first configuration, as a handle for the board; and, in a second configuration, as a linkup for connecting the board in abutting relation to one or more other adjacently located, similarly configured standup paddle boards. With a plurality of such boards connected proximate one another in a desired configuration via such links, an extended upper surface is provided that can serve as a substantially stable platform upon which one or more persons can engage in desired activities.

The invention relates to a folded paddle type ship propeller. The propeller mainly consists of a connection arm, a water diversion bracket, a paddle board I and a paddle board II; one end of the connection arm is provided with a connection thread, and the other end of the connection arm is connected with the water diversion bracket; the water diversion bracket is in a V-shaped groove structure consisting of two water diversion boards and two lateral boards; rotating shaft through holes are correspondingly arranged on the two lateral boards; the paddle board I and the paddle board II are hinged through a rotating shaft; the both ends of the rotating shaft respectively extend out from the two rotating through holes of the two lateral boards; and a plug is sleeved at an extending part of the rotating shaft. The folded paddle type ship propeller provided by the invention is a ship propeller in a new structure; the paddle boards are continuously unfolded and closed, so as to provide power for aviation of a ship. The paddling motion of the paddle boards is slow, so that no high-speed periodic driving force is generated. Furthermore, compared with a spiral propeller, the folded paddle type ship propeller has smaller noise and better elusiveness.

The invention discloses a wake field simulation method for a cavitation water drum paddle model test, and the method can accurately and conveniently simulate three-way wake of a single-paddle ship with a stern energy-saving appendage or a double-paddle ship with a shaft bracket by utilizing a grid and appendage model, the paddle model test carried out in the wake field is closer to the working condition of a real ship, and the test result is more accurate and reliable. The grids are formed by weaving a plurality of layers of metal wires and are fixed near a water flow inlet of the cavitation water drum test section; the appendage model is obtained through 3D printing and other methods, the period is short, the cost is low, and the appendage model can be conveniently installed in front of apaddle mold on a cavitation water drum test shaft. According to the method, the test capability of the medium-sized cavitation water drum is expanded, and the influence of an energy-saving appendageor a shaft bracket and the like in front of the propeller mold on the performance of the propeller can be observed more meticulously.

The invention discloses a VR simulation rowing machine for rowing exercise training. The machine comprises a host platform, and a scene simulation cabin, a supporting device, a human body fixing device and a strength training device which are arranged on the host platform, an outlet is formed in one end of the scene simulation cabin, a VR simulation imaging machine is arranged at one end, far fromthe outlet, in the scene simulation cabin, the supporting device is located right in front of the VR simulation imaging machine, the bottom of the human body fixing device is slidably connected withthe top of the supporting device, the strength training device comprises two weight adjusting boxes, the two weight adjusting boxes are symmetrically arranged on the two sides of the supporting deviceand are close to one end of the VR simulation imaging machine, and two paddle shaking simulation assemblies are symmetrically arranged on the side, close to the supporting device, of each weight adjusting box. A VR virtual technology is used for enabling athletes to be better substituted into corresponding competition scenes, the athletes can give out potential more easily in the training process, the number of annular gravity blocks in the weight adjusting boxes is used for achieving the load proportion of the paddle shaking action, and the training effect of the athletes is fully improved.

A stand-up inflatable paddle board (2) comprises (i) a deck (4); (ii) a valve (6) for enabling the stand-up inflatable paddle board (2) to be inflated and deflated; (iii) indicator means (12) for indicating that the stand-up inflatable paddle board (2) requires at least one fold which is longitudinal when the stand-up inflatable paddle board (2) is to be placed in a deflated condition; and (iv) atleast one deck pad (8, 10) which extends longitudinally of the deck (4) and which is for receiving a user of the stand-up inflatable paddle board (2), and the stand-up inflatable paddle board (2) being such that (v) the deck pad (8, 10) causes the stand-up inflatable paddle board to have a gap (14) which permits the fold to be effected about the gap (14).

The invention discloses a paddle operation interlocking method and device for a variable-pitch system of a wind generating set. The paddle operation interlocking can be realized by respectively adopting software control logic and hardware control logic. According to the paddle operation interlocking method for the variable-pitch system of the wind generating set, firstly, communication among three variable-pitch cabinets in the variable-pitch system is established, so that the variable-pitch positions of any two variable-pitch cabinets in the variable-pitch system can be fed back to the third variable-pitch cabinet, and in a service maintenance mode, when a variable-pitch manual operation box is used for carrying out variable-pitch operation on any paddle, the other two paddles are located at feathering positions, otherwise, the paddle cannot be subjected to variable pitch operation; and interlocking protection control logic is operated through the fan main controller. In the service maintenance mode, the variable pitch mode flag bit f is equal to 1; a fan high-speed shaft brake is always in an input state and cannot be loosened; and the fan main controller dynamically and circularly updates the state of the blade operation flag ai, and when the blade operation flag a2=a3=1, the blade 1 can perform feathering and opening operations.

The invention relates to the field of water sports equipment, in particular to a processing method for improving the water breaking capacity of an inflatable paddle board. The method specifically comprises the following steps: S1, reserving an external expansion part at the edge of an air cushion sheet, and designing the reserved width of the external expansion part close to the tip of the paddleboard to be greater than the reserved width of the external expansion part far away from the tip of the paddle board; and S2, bonding the two outer expansion parts of the two air cushion pieces, so that the bonding width of each outer expansion part close to the tip of the paddle board is smaller than the bonding width of each outer expansion part far away from the tip of the paddle board. According to the processing method for improving the water breaking capacity of the inflatable paddle board, the strength of the board head of the inflatable paddle board is guaranteed while the sharpness and the warping degree of the board head of the inflatable paddle board are improved, and the water breaking capacity of the inflatable paddle board is improved.

The invention relates to the technical fields of software program algorithms and communication, and provides a method capable of simulating one-boat rowing of multiple persons. The method comprises the following steps of: 1, collection of the data of pull ropes of rowing machines: acquiring real-time data of pull rope displacement of users through lower computers arranged on the rowing machines, uploading the data to upper computers arranged on the rowing machines, and enabling the upper computers to upload the pull rope displacement data of the users to a background server; 2, data analysis: synchronizing the pull rope displacement of a plurality of rowing machines in the same boat; 3, data judgment: judging whether paddles of paddle positions where the plurality of rowing machines in the same boat are located are synchronous or not and whether the paddles are beaten or not; 4, real-time display: displaying a judgment result on displayers of the rowing machines in real time; and 5, feedback of a result: allowing the users to timely adjust their own motion postures according to a prompt so as to keep the synchronous rowing experience of the multi-person boat. The defect that an existing rowing machine cannot be used for multiple persons to row on the same boat is overcome in the prior art.

The invention discloses a novel inflating paddle board. The novel inflating paddle board comprises a front air chamber, a rear air chamber and a middle board body; the middle board body is positionedbetween the front air chamber and the rear air chamber; the upper surface and the lower surface of the middle board body are both correspondingly bonded with the front air chamber and the rear air chamber through PVC connecting strips; the side surfaces of the front air chamber, the middle board body and the rear air chamber are connected with each other through integrally coated PVC connecting strips; the front air chamber and the rear air chamber are both airbags made of drawing air cushions; the core of the middle board body is a polyurethane foam board; and glass fiber reinforced plastic sticky nets are arranged on both the upper surface and the lower surface of the polyurethane foam board. The novel inflating paddle board has the advantage that the novel inflating paddle board can beinflated and deflated and is convenient to carry; and moreover, the novel inflating paddle board is a multi-air chamber structure; when any air chamber is broken, the novel inflating paddle board canbe drawn back to the shore by using the middle part; and therefore, the use safety is higher; in addition, as the middle board body is of a glass fiber reinforced plastic reinforcing structure, the hardness and strength of the inflating paddle board can be obviously improved so that the control forces of operators to the paddle board are more powerful.

The invention relates to the field of paddles, in particular to paddle performance detection equipment for simulating the actual use process. The invention aims to solve the technical problems that an existing paddle performance detection mode cannot meet the situation in the actual use process, the reliability is not high, a paddle board can touch gravel in water in the actual use process, the gravel can rub the paddle board, and thus the paddle board is damaged. According to the technical scheme, the paddle performance detection equipment for simulating the actual use process comprises bottom feet, a first mounting plate, a simulation swing unit and the like; the tops of the four bottom feet are connected with a first mounting plate; the right part of the upper side of the first mounting plate is connected with a simulation swing unit. According to the invention, the performance of the paddle is detected, the movement track of the paddle in the actual use process is simulated, the friction of gravel to the paddle board is simulated in the process, and the situation that the paddle touches a hard object is simulated, so that the wear resistance and the anti-collision capability of the paddle are detected, and the detection reliability is improved.

The invention relates to an independent variable pitch control method for a floating type fan. The independent variable pitch control method for the floating type fan comprises the steps that 1), analyzing a paddle mechanical structure of the floating fan is carried out, a paddle mechanical structure kinetic equation is obtained, 2), an independent variable pitch model is established, 3), a controller ui is designed, and 4), the floating fan is controlled by using the designed controller ui. According to the independent variable pitch control method for the floating type fan, the independent variable pitch model containing disturbance factors is established, the rate function is introduced, the designed controller can track the expected pitch angle in a self-adaptive mode, errors can be converged within limited time, the fan is usually a large-scale time-lag nonlinear system, limited time convergence can enable the fan to quickly respond under complex external conditions, so that the load of the fan is reduced, the stability of the power of the fan is maintained, and the service life of the fan is prolonged.

The invention provides a robot walking on water, and relates to the technical field of machineries; the robot walking on water comprises a shell, the two sides of the shell are each provided with a scratching claw assembly, a power device is mounted in the middle of the interior of the shell, a storage battery is mounted on the surface of the interior of the shell, and a supporting frame is mounted on the upper surface of the shell; the supporting frame is connected with a yo-yo ball through a first bolt; the middle of the supporting frame is connected with a stabilizing column, and the rightend of the supporting frame is provided with a direction assembly; and the left and right sides of the upper end of the stabilizing column are connected with connecting plates, the connecting plates are connected to the interior of the yo-yo ball through second bolts, and a v-shaped groove is formed in the right end of the yo-yo ball. Power is provided through the power device, the motor is started to drive a first rotating shaft to rotate, a first gear is engaged with a second gear, and paddle claw assemblies on the two sides of the shell are driven to paddle, so that a first paddle and a second paddle paddle back and forth on the water surface, and then the yo-yo ball on the upper portion of the shell is borne to move on the water surface for sightseeing.