CN-224220713-U - Screw type table tennis service posture adjusting device

CN224220713UCN 224220713 UCN224220713 UCN 224220713UCN-224220713-U

Abstract

The utility model relates to the technical field of table tennis service equipment manufacture, in particular to a screw type table tennis service posture adjusting device which has reasonable structure, low cost, light weight and good heat dissipation, and is characterized in that a pitching mechanism for adjusting the pitching posture of a head of a ball service machine is arranged between the head of the ball service machine and a ball conveying channel, the pitching mechanism comprises a pitching base and a pitching elbow, the lower end of the pitching elbow is hinged to the upper end of the pitching base, the pitching base is provided with a vertical hollow pipe cavity, the lower end of the pitching base is connected with the upper end of the ball conveying channel, the pitching elbow is provided with an arc-shaped hollow pipe cavity, the front end of the arc-shaped hollow pipe cavity is communicated with the pitching machine head, and the rear end of the arc-shaped hollow pipe cavity is communicated with the ball conveying channel through the pitching base.

Inventors

YU WANLI
HAN CHAO
KONG FANJING
SONG YUANYUAN

Assignees

威海双蛇体育器材科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250514

Claims (10)

1. The utility model provides a lead screw type table tennis service posture adjusting device, pitching machine aircraft nose, spheroid conveying channel and confession ball base, pitching machine aircraft nose install on confession ball base through spheroid conveying channel, its characterized in that, pitching machine aircraft nose is equipped with the pitch mechanism that is used for adjusting pitching posture of pitching machine aircraft nose between spheroid conveying channel, pitching mechanism includes pitch base, pitch elbow, and wherein the lower extreme of pitch elbow articulates pitch base upper end, pitch base have vertical cavity, pitch base lower extreme with spheroid conveying channel upper end links to each other, pitch elbow has curved cavity, and curved cavity front end with pitching machine aircraft nose is linked together, and the rear end is through pitch base is linked together with spheroid conveying channel, pitching mechanism still is equipped with pitch motor, lead screw, slider, pitch motor fixes on the pitch elbow, pitch motor output shaft is connected with the lead screw, link to each other with the slider through the screw thread, the slider with pitch base fixed connection, pitch motor area is rotated in order to make the relative drive pitch lead screw of the upper swing elbow.
2. The screw type table tennis service posture adjusting device according to claim 1, wherein two sides of the lower end of the pitching elbow are respectively hinged with two sides of the upper end of the pitching base through pitching rotating shafts, and an output shaft of the pitching motor and a screw connected with the pitching motor are vertically arranged, so that the pitching motor drives the screw to rotate to drive the pitching elbow to pitch relative to the pitching base.
3. The screw type table tennis service posture adjusting device according to claim 1, wherein a pitching spring is further arranged in the pitching mechanism, pitching springs are symmetrically arranged on two sides below the pitching elbow respectively, the upper ends of the two pitching springs are connected with the pitching elbow, the lower ends of the two pitching springs are connected with the pitching base, and the pitching springs are always in a stretching state and are used for balancing the weight of a machine head of the pitching machine, so that the pitching posture is adjusted.
4. The screw type table tennis service gesture adjusting device according to claim 1, further comprising a yaw mechanism for adjusting the horizontal position of a machine head of the service robot, wherein the yaw mechanism is located below the pitching mechanism and comprises a yaw base, a yaw flange, a yaw motor, a yaw screw and a yaw sliding block which is in threaded connection with the yaw screw, the yaw flange and the yaw base are provided with hollow sleeve-shaped main bodies, the yaw base is coaxially sleeved at the lower part of the yaw flange, a bearing is arranged between the yaw base and the yaw flange so that the yaw flange and the yaw base can rotate relatively, the yaw motor is fixedly connected with the yaw base, the output end of the yaw motor is connected with the yaw screw, the sliding block is connected with the yaw flange, the yaw screw is horizontally arranged, and the yaw motor drives the screw to move relatively to the sliding block, so that the yaw flange and the yaw base rotate relatively.
5. The screw type table tennis service posture adjustment device according to claim 1, wherein the ball conveying channel is vertically arranged for conveying balls in the ball supply base to the service robot head.
6. The screw type table tennis service posture adjusting device according to claim 1, wherein a machine head rotating mechanism is further arranged between the machine head and the pitching mechanism, the machine head rotating mechanism comprises a rotary movable knot sleeve, a rotary motor, a driving gear and a driven gear, a ball throwing channel is arranged in the machine head, the ball throwing channel is in a hollow tubular shape which is horizontally arranged, the rear end of the ball throwing channel is a ball inlet end, the rotary movable knot sleeve is sleeved at the rear end of the ball throwing channel, a bearing structure is arranged between the rotary movable knot sleeve and the outer wall of the ball throwing channel, so that a sleeve body of the rotary movable knot sleeve is rotatable with the ball throwing channel, the ball throwing channel of the machine head is communicated with a pitching elbow in the pitching mechanism through the rotary movable knot sleeve, namely, the rear end of the rotary movable knot sleeve is fixedly connected with the pitching elbow, the rotary motor is arranged on the pitching elbow, an output shaft of the rotary motor is connected with the driving gear, the driven gear is meshed with the driving gear, and the driven gear is fixedly connected with the rear end of the ball throwing channel.
7. The screw type table tennis service posture adjusting device according to claim 6, wherein a tooth slot arranged along the circumferential direction is arranged on the outer wall of the rear part of the ball casting channel, so as to form a driven gear, and the rotation of the ball casting channel in the head of the ball dispenser is driven by the rotary motor through the driving gear.
8. The screw type table tennis service posture adjusting device according to claim 6, wherein the rotary movable joint sleeve is connected with the longitudinal pendulum elbow through a quick-connection buckle mechanism, the rotary movable joint sleeve is concentrically arranged at the upper end of the longitudinal pendulum elbow, a quick-connection clamping ring and a buckling bulge which are matched are arranged at the joint of the rotary movable joint sleeve and the longitudinal pendulum elbow, a slotted hole for enabling the buckling bulge to be screwed and embedded is formed in the quick-connection clamping ring, a locking pin is further arranged on the quick-connection clamping ring, when the buckling bulge is screwed to a locking position of the slotted hole, the locking pin ejects out under the action of a spring and locks the buckling bulge into the locking position of the slotted hole, and when the locking pin is manually removed, the buckling bulge can be withdrawn from the locking position through reversely screwing the rotary movable joint sleeve.
9. The screw type table tennis service posture adjusting device according to claim 8, wherein the locking pin comprises a pin body with a toggle contact, a spring gland and a positioning sleeve for accommodating the pin body, the positioning sleeve is provided with a strip-shaped groove for enabling the toggle contact to extend to the outside, the strip-shaped groove is arranged along the length direction of the positioning sleeve, the spring is pressed at the rear end of the pin body through the spring gland, and the spring gland is fixedly connected with the positioning sleeve.
10. The screw type table tennis service posture adjusting device according to claim 9, wherein the quick connection snap ring is arranged at the front end of the longitudinal swing elbow, the buckling protrusions are arranged on the rotary movable knot sleeve, two groups of buckling protrusions arranged along the peripheral surface of the rotary movable knot sleeve body are arranged on the rotary movable knot sleeve for improving the connection stability of the longitudinal swing elbow and the rotary movable knot sleeve, two protruding blocks arranged at intervals are arranged in each group of buckling protrusions, and accordingly, the quick connection snap ring is correspondingly provided with two arc-shaped slotted holes and is provided with at least one locking pin with the front end capable of being embedded into the slotted holes.

Description

Screw type table tennis service posture adjusting device Technical field: The utility model relates to the technical field of table tennis service equipment manufacture, in particular to a screw type table tennis service posture adjusting device which is reasonable in structure, low in cost, light in weight and good in heat dissipation. The background technology is as follows: The existing table tennis service device in the market mainly comprises a shell with a ball conveying channel, wherein the ball conveying channel is often arranged vertically, a service machine head is arranged at one end of the shell, a ball inlet is arranged at the other end of the shell, the inlet is communicated with the ball conveying channel, a ball supply mechanism continuously feeds table tennis balls into the ball conveying channel and further into the machine head, and a throwing device is arranged on the machine head to throw the balls out. In order to simulate a person to complete pitching service, rotating ball and straight ball throwing, the accurate simulation of a plurality of technical factors such as the pitching speed, the rotating gesture and the line of the table tennis thrown by the head of the ball dispenser is ensured, and the existing table tennis service device is also provided with a yaw mechanism for driving the head of the ball dispenser to swing transversely, a pitching mechanism for driving the head of the ball dispenser to swing in a pitching way and a head rotating mechanism for driving the head of the ball dispenser to rotate. It is clear that the purpose of simulating a variety of routes or ball service can be achieved only by fine combinations of yaw, pitch, and spin actions. The structure of yaw mechanism or pitch mechanism among the current like equipment is complicated, and the dismouting is inconvenient, and because the service robot aircraft nose has weight, yaw or pitch mechanism adopts gear structure, at work because of swing inertia effect, leads to the action to surpass the swing range of predetermineeing, causes action precision to descend, and in addition, pitch mechanism when carrying out pitch gesture adjustment, need overcome the aircraft nose weight that is located upper portion front side, specifically: when pitch attitude adjustment is carried out on the pitching mechanism, the pitching attitude of the machine head tends to decline rapidly under the action of gravity, and the pitching attitude of the machine head needs to be pulled up against the action of gravity, so that the difference of execution time of two actions is large, in order to overcome the point, the weight is assembled on the back of the machine head in the prior art to improve the stability of the pitching attitude or the pitching attitude, or a plurality of manufacturers adopt high-power devices to quickly pull up the machine head to finish the pitching attitude adjustment, so that the whole equipment has high power consumption, heat is increased, devices such as a cooling fan and the like are needed to be specially additionally arranged in the equipment finally, the equipment volume and the structural complexity are further increased, and the manufacturing cost of the whole device is increased. The invention comprises the following steps: Aiming at the defects and shortcomings in the prior art, the utility model provides the screw type table tennis service posture adjusting device which is reasonable in structure, low in cost, light in weight and good in heat dissipation. The utility model is achieved by the following measures: The utility model provides a lead screw type table tennis service posture adjusting device, pitching machine aircraft nose, spheroid conveying channel and confession ball base, pitching machine aircraft nose install on confession ball base through spheroid conveying channel, its characterized in that, pitching machine aircraft nose is equipped with the pitch mechanism that is used for adjusting pitching posture of pitching machine aircraft nose between spheroid conveying channel, pitching mechanism includes pitch base, pitch elbow, and wherein the lower extreme of pitch elbow articulates pitch base upper end, pitch base have vertical cavity, pitch base lower extreme with spheroid conveying channel upper end links to each other, pitch elbow has curved cavity, and curved cavity front end with pitching machine aircraft nose is linked together, and the rear end is through pitch base is linked together with spheroid conveying channel, pitching mechanism still is equipped with pitch motor, lead screw, slider, pitch motor fixes on the pitch elbow, pitch motor output shaft is connected with the lead screw, link to each other with the slider through the screw thread, the slider with pitch base fixed connection, pitch motor area is rotated in order to make the relative drive pitch lead screw of the upper swing elbow. According to the utility model, two sides of the lower end of the pitch elbow are re