336 results about "Tennis racket" patented technology

The invention relates to the technical field of fibers, and discloses a preparation method of a high-elasticity nylon fiber for a tennis racket string, nylon 6 and polyether modified polyimide with the mass ratio of 100: (10-30) are subjected to melt blending spinning in a spinning machine, then drafting and sizing are performed through a hot roller drafting machine, and the high-elasticity nylon fiber for the tennis racket string is obtained. The polyether modified polyimide contains the same amido bond structural unit as nylon 6, so that the polyether modified polyimide has good compatibility with nylon 6, the polyether modified polyimide can be uniformly dispersed in a nylon fiber matrix, and a flexible polyethylene glycol molecular chain is introduced into a polyimide molecular chain, so that the polyether modified polyimide improves the toughness and elasticity of the nylon fiber; therefore, the high elongation at break and the high elastic recovery rate are shown. The nylon fiber disclosed by the invention has good practical application in the aspects of tennis racket lines and the like.

The invention discloses a sensing device for ball hitting detection and a tennis racket. The sensing device comprises a sensor element, and the sensor element is combined with a data fusion algorithm to conduct data monitoring on the ball hitting force, the ball hitting speed and the ball hitting position of the tennis racket; the sensor element comprises an IMU (Inertial Measurement Unit) sensor, physical quantity parameters in a tennis racket batting and waving process and an acoustic sensor, and is used for analyzing batting force, batting speed and batting position; the Bluetooth communication element is used for realizing wireless communication; the energy collector is used for converting kinetic energy generated by ball hitting of the tennis racket into electric energy to supply power to the sensor component; data monitoring is carried out on the ball hitting force, the ball hitting speed and the ball hitting position, the IMU sensor, the acoustic sensor and the energy collector are used in cooperation and combined with a data fusion algorithm, the defects of a traditional single sensor are effectively overcome, the positioning and tracking precision is improved, the energy collector is used for storing and using electric energy, and the positioning and tracking precision is improved. And power consumption is reduced.

The invention belongs to the technical field of computer vision and action recognition, and discloses a table tennis swing key frame recognition method and system, and the method comprises the steps: carrying out the posture estimation of a table tennis motion video frame by frame, extracting twelve skeleton key points including shoulders, elbows, wrists, hips, knees and ankles, and carrying out the recognition of the key frames; normalization is completed with the shoulder midpoint as a translation reference and the shoulder width as a scaling factor, and a standardized skeleton sequence is obtained; sequentially inputting the sequence into a three-layer one-dimensional convolutional network to extract local features, adding a learnable position code after convolution output, and then inputting a time sequence modeling network formed by six layers of Transformer encoders to capture a long-time dependency relationship; and finally, outputting five types of results of forehand shooting, forehand swing, backhand shooting, backhand swing and non-key frames through a two-layer full-connection network. The system is composed of a data processing module, a feature modeling module and a key frame recognition module, and stable recognition of table tennis swing key frames can be achieved.

The invention discloses a tennis racket batting data monitoring system based on an intelligent sensor, and particularly relates to a training data monitoring technology, which comprises a four-layer collaborative architecture, an intelligent tennis racket, an intelligent bracelet and a communication module, the four-layer collaborative architecture is composed of a sensor layer, an unmanned aerial vehicle collaborative layer, an edge computing layer and a cloud / user layer; a first communication module is arranged in the unmanned aerial vehicle cooperation layer and used for receiving racket data and environment perception, and the unmanned aerial vehicle cooperation layer communicates with the sensor layer in real time. According to the tennis racket ball hitting data monitoring system based on the intelligent sensor, comprehensive monitoring and analysis of tennis ball hitting data are achieved, the system can capture detailed information at the ball hitting moment, and an accurate ball hitting quality score is generated in combination with physiological data and environmental factors of players; scientific training feedback and competition strategy support are provided for players; the self-adaptive feedback control function of the system can dynamically adjust the training intensity according to the physical state of the player, and the training effect is effectively improved.

A table tennis racket 1 characterized in that the circumference of the blade 3 comprises a plurality of straight portions 9a-g, and in that the handle 2 is aligned with a central longitudinal axis 8 of the racket 1.

A portable badminton net rack includes a box, a first support rod, a second support rod, a net, a battledore and a badminton, the box includes an upper box and a lower box hinged to the upper box, an accommodation groove is defined in the lower box, the accommodation groove is configured to accommodate the net, the battledore and the badminton, the first support rod and the second support rod are each configured as a telescopic rod and are hinged to two sides of the lower box, respectively, each side of the net is provided with a connecting bush, and when the portable badminton net rack is in a use state, a first connecting bush of the two connecting bushes is sleeved on the first support rod, and a second connecting bush of the two connecting bushes is sleeved on the second support rod.

A vibration dampener device configured to install to the stings of a racket for dampening a vibration energy of the strings, and which allows for adjustable / tunable dampening may comprise a dampening member configured to capture a first string segment and a second string segment of the racket; and a holder assembly comprising a post including post threading, a tension adjustment nut threadably engaged to the post threading, and at least one plate.

The utility model discloses a tennis racket grip strength testing device, which relates to the field of testing devices and comprises a tennis racket, terminal equipment, a digital conversion module, a wireless transmission module, a wireless receiving module, a flexible sensor, a lithium battery and a battery fixing component. The digital conversion module and the wireless transmission module are arranged on the inner side of a racket throat of the tennis racket, the lithium battery is fixedly installed in the racket throat of the tennis racket through the battery fixing assembly, a racket handle of the tennis racket is of an octagonal prism structure, and the flexible sensors are arranged on the side faces of the racket handle of the tennis racket respectively. The wireless receiving module is electrically connected with the terminal device, the flexible sensor is electrically connected with the digital conversion module, the lithium battery is electrically connected with the digital conversion module and the wireless transmission module, the digital conversion module is electrically connected with the wireless transmission module, and the wireless transmission module is in communication connection with the wireless receiving module. The grip strength testing device can solve the problem that a traditional grip strength testing device is poor in user experience in the actual movement process.

The utility model discloses polishing equipment for table tennis bat production, which comprises a workbench erected on the ground, and further comprises a supporting mechanism used for forming a rotary machining tool, a conveying mechanism used for automatically conveying table tennis bat and a polishing mechanism used for polishing a plurality of groups of table tennis bat simultaneously, the supporting mechanism is arranged at the upper end of the working table, the conveying mechanism is arranged on the upper portion of the working table corresponding to the supporting mechanism, and the grinding mechanism is assembled on one side of the supporting mechanism. The conveying mechanism is arranged, table tennis bats can be automatically conveyed, workers can polish and feed the table tennis bats conveniently, the polishing mechanism is arranged, multiple sets of table tennis bats can be polished and machined at the same time, the machining efficiency is high, and the large-scale production and machining requirements of the table tennis bats can be met.

The present application discloses an accessory for items of sporting equipment. Implementations may provide an accessory comprising a structure configured to be affixed to a first end of an item of sporting equipment meant to be swung or rotated, such as a baseball bat, lacrosse stick, or tennis racquet. The addition of the accessory results in movement of the center of mass of the sporting item. Implementations may be varied in weight and dimension such that the center of mass of the sporting item is moved to a location optimal for the demands of the sport and individual athletes' needs.

The utility model relates to table tennis bat rubber sleeve cleaning equipment. The table tennis bat rubber sleeve cleaning equipment comprises a frame body, a clamping mechanism and a cleaning mechanism, the clamping mechanism comprises a supporting plate and a first air cylinder, wherein the supporting plate and the first air cylinder are fixedly arranged on the frame body. The free end of the first air cylinder is provided with a pressing plate matched with the supporting plate. The cleaning mechanism comprises a second air cylinder and a cleaning head arranged at the free end of the second air cylinder, a sponge block and a spraying head are arranged on the cleaning head, and the spraying head is connected with a storage tank containing a rubber cleaning agent. According to the table tennis bat cleaning device, the clamping mechanism and the cleaning mechanism are arranged on the frame body, the clamping mechanism can be used for fixing a plurality of table tennis bat bodies, the cleaning mechanism is used for automatically cleaning the table tennis bat bodies, the labor intensity of workers is reduced, and the cleaning efficiency is improved.

1. Name of the designed product: double-shoulder bag (tennis pocket). 2. Use of the designed product: the designed product is used for packing tennis racket and sports goods. 3. Design points of the designed product: the combination of shape and color. 4. Picture or photo showing the design points: front view. 5. The designed product contains color.

The invention relates to the technical field of training equipment transfer, in particular to a convenient physical training equipment transfer device with a lifting function. The convenient physical training equipment transfer device with the lifting function comprises a bottom frame, a handle, a bottom frame, a lifting frame, moving wheels, a threaded rod, a return spring, a wire spool, a wire wheel, a pull rope and a driving assembly, the handle is rotationally connected to the front side of the bottom frame, the bottom frame is installed at the top of the bottom frame, a sliding groove is formed in the bottom frame, and the lifting frame is arranged in the sliding groove. The lifting frame is in sliding connection with a sliding groove in the bottom frame. The interiors of the bottom frame and the lifting frame are reasonably partitioned, basketballs, footballs and volleyballs are stored in a front side cavity according to the sizes of balls, table tennis balls are stored in a rear right side cavity, a feeding hopper and a sliding cover are designed correspondingly, storage and taking are convenient, meanwhile, badminton rackets and table tennis rackets are stored in a large-size racket frame and a small-size racket frame respectively, sports equipment is clearly classified, mutual collision and damage are avoided, and the service life of the sports equipment is prolonged. And the equipment management and taking efficiency is greatly improved.

The utility model relates to the technical field of tennis racket processing, in particular to a fixing clamp for tennis racket processing, which comprises a workbench, a centering assembly and a clamping assembly, the centering assembly comprises a positive and negative tooth screw rod, a sliding block, a motor and a centering plate, the workbench is provided with a sliding groove, and the clamping assembly is arranged in the sliding groove. A sliding groove is formed in the workbench, the positive and negative tooth screw rod and two sets of symmetrically-arranged sliding blocks are arranged in the sliding groove, the output end of the motor penetrates through the workbench and is connected with the positive and negative tooth screw rod, the sliding blocks are in threaded connection with the positive and negative tooth screw rod, and the centering plate is further arranged on the sliding blocks. According to the fixing clamp for tennis racket machining, the bearing groove of the centering plate provides stable supporting and is matched with a bolt to drive a movable block to move, the position of a clamping piece at the end of the movable block is adjusted in the bearing groove, and stable clamping and fixing are conveniently provided for different parts of a tennis racket; and after long-time use and abrasion, the movable block with the clamping piece of the corresponding specification is convenient to replace.

1. Name of the product in this design: Table tennis racket blade. 2. Purpose of this design: For use in table tennis rackets. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

A double grip tennis racquet includes a generally oval-shaped racquet head, a throat that extends downward from the bottom end of the racquet head, a handle that is positioned along the bottom of the throat, a pair of struts that extend diagonally outward from the bottom of the handle, and a pair of grips that extend downward from the struts. The struts position each of the grips parallel both to each other, and to the centerline of the racquet. Each of the grips include a layered construction having a core layer that is formed as a unitary member with the struts, the handle, throat and racquet head, and an impact absorbing outer layer. Each of the grips include a separation distance of 3 inches and a length of 8 inches. The overall length of the racquet is 29 inches to conform to ITF standards.

1. The name of the product of this design: table tennis racket (straight blade). 2. The purpose of this design product: table tennis, used with a straight-blade grip. 3. The design key point of this appearance design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The present invention relates to a padel racket that is strung on its two striking surfaces instead of being solid. Thus, the resulting racket has the following elements: A) a handgrip or gripping handle covered by a grip adapted in size to the player, in order to control muscle tension and allow smooth wrist movement; B) the heart or throat of the racket provided with a bridge and reinforcement, which acts as a connecting link between the handgrip and the head and does not present any distinctive features in the present invention; and C) two striking surfaces or faces which in the present invention are strung, so that both faces are configured by a double string network system, each of the faces being a network pattern or grid parallel to the opposite face.

The invention relates to the technical field of table tennis bats, in particular to an intelligent table tennis bat which comprises a bat body and an upper computer and further comprises a plurality of pressure sensors, a controller and an acceleration sensor, the pressure sensors are evenly distributed on the bat body and used for detecting pressure borne by the bat body, and the controller is arranged on the bat body and used for controlling the acceleration sensor. The pressure sensor is arranged on the racket and used for transmitting a numerical value detected by the pressure sensor to an upper computer, and the acceleration sensor is arranged on the racket and used for detecting the shape of the racket; the pressure sensor can realize large-range detection, and the average detection accuracy before and after rubber covering exceeds 90%; a ball hitting force detection system carried by the racket has relatively high accuracy, the error after correction is within 1%, and the system can be used as a powerful supplement for high-precision digital table tennis motion data acquisition and analysis equipment in a table tennis actual combat laboratory; the real-time analysis accuracy rate of the racket shape is 100%, the response time is within 1ms, and the racket shape can be matched with the ball hitting part and force to integrally display the ball hitting condition.

A pipe fitting and a tennis racket, the pipe fitting including an inner frame portion extending along a first axial direction, an outer frame portion spaced from the inner frame portion along a second axial direction perpendicular to the first axial direction, and a wide portion extending straightly from the outer frame portion to the inner frame portion along the second axial direction, the narrow part is connected between the inner frame part and the outer frame part and is in an arc shape. And the length of the wide part along the second axial direction is greater than the length of the narrow part along the second axial direction. The tennis racket comprises a racket frame, the racket frame is formed by bending the pipe fitting and defines a ball hitting area in a surrounding mode, and the inner frame part surrounds the ball hitting area. When the tennis racket is used, one side of the wide part or one side of the narrow part swings windward, the tennis racket can bear different air resistances, a user can select different racket holding modes according to different use requirements, and different swinging feelings are generated.

Decision-making device for choosing the string of a tennis racket according to the characteristics of the player and his equipment The invention relates to a device for choosing a string according to technical and mechanical parameters to correspond to the characteristics of the player. It consists of an information storage and management system (1) which makes it possible to carry out mathematical (5) and statistical (6) calculations from databases of the technical and mechanical parameters (4) of the tennis rackets (2) and the strings (3), as well as the individual data of the player (8). A secondary database (7) is thus constituted and calculation algorithms (9) make it possible to determine which string best corresponds (10) to the individual data of the player.The measured evolution (13) of the technical and mechanical parameters of the string (12) according to its use by the player also makes it possible to determine when this string must be redone (14) to regain the technical and mechanical parameters initially chosen. The device according to the invention is particularly intended for choosing the string for a tennis racket.

A grip attachable to a sports stick may have a grip surface gripped by a hand of a user, the grip surface including N surfaces in contact with each other, wherein the cross section of the grip is a polygon having N sides depending on the number of the surfaces, the lengths of the bases of at least two surfaces among the surfaces are greater than the lengths of the bases of the remaining surfaces, a grip guide line parallel to the shaft is displayed in the center of each plane, by selecting one grip guide line that matches the reference line of the shaft of the golf club from among the N grip guide lines, the grip surface that meets the user's hand changes, N is a positive integer, and the sports stick includes a golf club, a tennis racket, a table tennis racket, a hockey stick, or a badminton racket.

1. Name of the product in this design: Ping Pong Board Packaging Box (301). 2. Purpose of this design: This design is used for packaging table tennis rackets. 3. The main design features of this product are the combination of color, shape, and pattern. 4. The picture or photograph that best illustrates the key design features of this design: front view. 5. This design patent seeks to protect the colors of the design.

1. Name of the designed product: shoulder bag (mini tennis racket). 2. Use of the designed product: for containing articles. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The utility model relates to the technical field of sports equipment, and discloses a tennis racket holding posture training structure which comprises a racket handle and racket faces, the racket handle is of an octagonal structure, each face of the racket handle in the clockwise direction is respectively provided with an indication mark number, a balance weight chamber is arranged in the racket handle, a balance weight assembly is arranged in the balance weight chamber, and the racket faces are provided with the indication marks. The balance weight assembly comprises a first balance weight core and a second balance weight core, the second balance weight core is arranged in the first balance weight core in an inserted mode, sliding grooves are symmetrically formed in the balance weight chamber, the first balance weight core is provided with a plurality of sets of first clamping plates which are symmetrically arranged, the first clamping plates are provided with rubber clamping beads, and second clamping plates are arranged in the sliding grooves. A clamping groove matched with the rubber clamping bead is formed in one face of the second clamping plate, and the edge of the clamping groove is designed into a round corner. The device can assist a user in correctly holding the racket, and the self weight of the racket can be flexibly adjusted, so that the grip strength training of the user is achieved.

1. Name of the product in this design: Ping Pong Board (Collector's Edition Hurricane King). 2. Purpose of this design: This design is used for a table tennis racket. 3. The main design features of this design are the combination of product shape and pattern. 4. The picture or photograph that best illustrates the key design features of this design: front view.

The utility model relates to the technical field of tennis racket processing and production, and discloses side edge equidistant drilling equipment for carbon fiber tennis racket production, which comprises a table top, a mounting seat is fixedly arranged at the rear end of the top of the table top, and a carbon fiber dust absorber is fixedly arranged at the bottom of the table top. When the device is used for fixing the racket framework, the electric telescopic rods at the upper end and the lower end of the oval rotating disc are controlled to stretch out, so that the two supporting blocks support the racket framework from the interior of the framework, the upper end and the lower end in the framework are clamped in the fixing grooves, fixing is achieved, and the racket framework can be conveniently and rapidly installed, fixed and disassembled; and the drill bit containing groove is formed in the supporting block, a cavity can be formed between the drill bit containing groove and the framework, interference between the drill bit and the supporting block can be avoided when the drill bit drills the framework, and the situation that the drill bit damages the supporting block is prevented.

1. The name of the product of this design: table tennis racket packaging box. 2. Purpose of this design product: This design product is used for product packaging. 3. The design key points of this appearance design product are: the combination of shape, pattern and color. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. The design for which protection is sought includes color.