35results about How to "Difficult to catch" patented technology

An injection needle apparatus in which an operation for relatively moving an outer tube 4 and an inner tube 5 is performed to project and retract a needle body 12 from and into a distal end of the outer tube 4, and to carry out a movement of rotation of the needle body 12 at a predetermined angle by relative forward and backward movements of the outer tube 4 and inner tube 5 in their longitudinal directions every time the forward and backward movement operations is repeated, thereby enabling changing a direction of a needlepoint 14 of the needle body 12 at each angle.

An injection needle apparatus in which an operation for relatively moving an outer tube 4 and an inner tube 5 is performed to project and retract a needle body 12 from and into a distal end of the outer tube 4, and to carry out a movement of rotation of the needle body 12 at a predetermined angle by relative forward and backward movements of the outer tube 4 and inner tube 5 in their longitudinal directions every time the forward and backward movement operations is repeated, thereby enabling changing a direction of a needlepoint 14 of the needle body 12 at each angle.

The invention relates to a volleyball training robot. The volleyball training robot consists of a motor, a snail-type shell, an ox-horn funnel, a grooved pulley support and a rail, wherein the snail-type shell is connected with the motor and the ox-horn funnel through a rivet, the snail-type shell is connected with the grooved pulley support through a rotating shaft, the grooved pulley support contacts the rail in a rolling manner, and the motor is connected with the grooved pulley support through a rivet. The volleyball training robot is simple, reasonable and novel in structure and simple to operate, not only can substitute a volleyball training partner to accompany the training, but also can improve the training effect, and is high in practicability.

The invention relates to an electromechanical type table tennis training apparatus, which consists of a snail type casing, a motor, an ox horn type funnel, a bracket and an adjusting rod, wherein the snail type casing is connected with the motor and the ox horn type funnel through flanges, the bracket is connected with the motor and the ox horn type funnel through support shafts, the motor is connected with the bracket through bolts, one end of the adjusting rod is connected with the bracket through a shaft, and the other end of the adjusting rod is connected with the snail type casing through a small shaft. The electromechanical type table tennis training apparatus has the advantages that the structure is simple, reasonable and novel, the operation is simple and convenient, the partner training can be realized by replacing a table tennis training partner with the apparatus,, the training effect is improved, and the practicality is high.

A robot table tennis training equipment, which is composed of a snail-shaped shell, a motor, a horn-shaped funnel, a bracket and an adjustment rod. The funnel is connected, the motor is connected to the bracket through bolts, one end of the adjustment rod is connected to the bracket through a shaft, and the other end is connected to the snail-type housing through a small shaft. The present invention is simple, reasonable and novel in structure, easy to operate, can replace the table tennis sparring partner for sparring, can improve the training effect, and has strong practicability.

The invention relates to a motor machine for table tennis training. The motor machine is composed of a snail type shell, a motor, an ox horn type funnel, a bracket and an adjusting rod, wherein the snail type shell is connected with the motor and the ox horn type funnel through rivets; the bracket is connected with the motor and the ox horn type funnel through a supporting shaft; the motor is connected with the bracket through rivets; one end of the adjusting rod is connected with the bracket through a shaft while the other end is connected with the snail type shell through a small shaft. The motor machine for table tennis training is simple, reasonable and novel in structure, is convenient in operation, is used for performing partner training by replacing a table tennis training partner, is capable of increasing the training effect and is high in practicability.

The invention relates to an electromechanical volleyball training instrument, which consists of a motor, a helicoid casing, a bull horn type funnel, a groove wheel support frame and a track, wherein the helicoid casing is connected with the motor and the bull horn type funnel through a flange, the helicoid casing is connected with the groove wheel support frame through a rotating shaft, the groove wheel support frame is in rolling contact with the track, and the motor is welded with the groove wheel support frame. The electromechanical volleyball training instrument has the advantages that the structure is simple, reasonable and novel, the operation is simple and convenient, the electromechanical volleyball training instrument can replace volleyball training partners to realize partner training, the training effect can also be improved, and the practicability is high.

An automatic ball-serving device for sports tennis, comprising a main body, vertical boards are fixedly installed on both sides of the main body, and the tops of the vertical boards are respectively rotated and connected to movable boards, and a limit mechanism is also provided between each vertical board and the corresponding movable board to limit The position mechanism can limit the rotation of the movable plate. The movable plates are all U-shaped structures. There are slide plates inside the movable plates. The slide plates are respectively connected with the corresponding movable plates through the first telescopic rods. Both the telescopic rod and the movable rod of the second telescopic rod are hollow structures. The single-chip microcomputer control system can randomly retrieve a tangent angle from the data storage module, and the tangent angle can be stretched to different lengths through the second telescopic rod. When the tennis ball contacts the elastic plate, the trajectory of the tennis ball changes, which greatly improves the performance It has the disadvantage of a single technical serving route, and the two elastic boards can be alternately tangent to the tennis ball, which can further enrich the movement track of the tennis ball, and is more suitable for tennis players to use in single-person training.

The invention relates to the field of auxiliary sports training equipment, and discloses a simulated serving device for volleyball training, which includes a base, one side of the top of the base is movably fitted with a rotating column, and the bottom end of the rotating column is fixedly fitted with a For the complete gear inside, the top of the side of the rotating column is fixedly connected with a side block, and the middle movable sleeve of the side block is equipped with a side shaft. The simulated serving device for volleyball training drives the transmission plate to move by moving the sliding block, thereby controlling the position of the clamping rod and the limit screw, drives the moving rod to move through the crank device, uses the limit screw to clamp the limit plate, and simultaneously passes the push rod Hold the stick and move up, so that the fourth spring can be used to make the ball hit the ball, thereby controlling the launch speed of the volleyball, avoiding the common training equipment for auxiliary trainers that can only project the ball and cannot control the volleyball The speed of the ball, so that the training effect of the trainers is not great.

Electric equipment for tennis training comprises a snail shaped shell, a motor, a bull horn shaped funnel, a bracket and a transmission rod, wherein the snail shaped shell is connected with the motor and the bull horn shaped funnel by flanges, the bracket is connected with the motor and the bull horn shaped funnel by a supporting shaft, the motor is connected with the bracket by bolts, one end of the transmission shaft is connected with the bracket by an eccentric shaft, and the other end is connected with the snail shaped shell by a small shaft. The electric equipment is novel, simple and reasonable in structure and easy and convenient to operate, by utilizing the electric equipment, the partner training of a tennis training partner can be replaced, and the training effect can be improved at the same time, so the practicability is high.

The invention discloses a volleyball training device with a geometrical shape and an attractive appearance. The volleyball training device consists of a motor, a snail type shell, an ox horn hopper, a geneva wheel support and tracks; the motor and the ox horn hopper are pasted on the snail type shell; the snail type shell is connected with the geneva wheel support through a rotating shaft; the geneva wheel support is in rolling contact with the tracks; the motor is pasted on the geneva wheel support. The volleyball training device is simple, reasonable and novel in structure, easy and convenient to operate, can replace a volleyball training partner for partner training, can also improve the training effect, and is high in practicability.

An electromechanical tennis ball machine, which is composed of a snail shell, a motor, a horn funnel, a bracket and a transmission rod. The funnel is connected, the motor is welded to the bracket, one end of the transmission rod is connected to the bracket through the eccentric shaft, and the other end is connected to the snail-type housing through the small shaft. The invention has a simple, reasonable and novel structure, and is easy to operate. It can not only replace tennis sparring players, but also improve the training effect, and has strong practicability.