CN112169280A

CN112169280A - Volleyball picking device

Info

Publication number: CN112169280A
Application number: CN202011304816.5A
Authority: CN
Inventors: 袁玲玲
Original assignee: Physical Education College of Zhengzhou University
Current assignee: Physical Education College of Zhengzhou University
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-01-05
Anticipated expiration: 2040-11-19
Also published as: CN112169280B

Abstract

The invention relates to volleyball ball picking equipment, which effectively solves the problems that the existing ball picking equipment has low ball picking efficiency and is inconvenient to put picked balls into corresponding ball serving equipment; the technical scheme of its solution includes the U-shaped frame, the top of U-shaped frame is equipped with a level and erects the U-shaped pole of projection and U-shaped frame coincidence, the rear side of U-shaped pole is equipped with a level and elastically deformable's first elastic rod, the free end fixed connection of first elastic rod and two branches, the centre at first elastic rod is fixed to the free end of rope, the middle bending deformation that makes forward of first elastic rod becomes the arc form, the rear side of first elastic rod is equipped with one and parallel and the same second elastic rod of shape structure function, there is the interval between second elastic rod and the first elastic rod, be equipped with two sets of articulated mounting between first elastic rod and the second elastic rod.

Description

Volleyball picking device

Technical Field

The invention relates to the field of ball picking equipment, in particular to volleyball ball picking equipment.

Background

The volleyball is usually served by a service robot in the team training process, the service robot is arranged on one side of a net, the whole team of training personnel is arranged on the other side, the service robot carries out irregular service, players in the whole team on the other side play the balls sent by the service robot back to one side of the service robot, the service robot can fill dozens of or even dozens of balls at a time, so the service robot can continuously serve the balls for many times, after the balls are served, a large number of volleyballs are arranged on the volleyball field on one side of the service robot, the manual ball picking is long in time consumption and needs to be bent repeatedly, some mechanical ball picking equipment is arranged in the current stage, but the ball picking process is one time, the ball picking efficiency is low, and the balls are inconvenient to be placed back into the service.

Disclosure of Invention

In order to overcome the defects of the prior art, the volleyball ball picking device provided by the invention effectively solves the problems that the ball picking efficiency of the conventional ball picking device is low and the picked ball is inconvenient to put into the corresponding ball serving device.

The technical scheme for solving the problems comprises a movable U-shaped frame which is horizontal and has a backward opening, a flat plate extends backwards from the middle position of the bottom of the U-shaped frame, an electric telescopic rod is fixed at the upper end of the flat plate, a U-shaped rod with horizontal and vertical projection coinciding with the U-shaped frame is arranged above the U-shaped frame, the middle position of the bottom of the U-shaped rod is fixed on the electric telescopic rod and can move up and down along with the extension and retraction of the electric telescopic rod, a winding wheel with self-locking function is fixed at the upper end of the middle position of the bottom of the U-shaped rod, a rope is wound and fixed on the winding wheel, a horizontal supporting rod is hinged at each of the two end parts of the U-shaped rod, a horizontal and elastically deformable first elastic rod is arranged at the rear side of the U-shaped rod, the first elastic rod is fixedly connected with the free ends of the two supporting rods, the free end of the rope is fixed in the middle of the first elastic rod, the rope, the rear side of first elastic rod is equipped with a second elastic rod the same with parallel and shape structure function, there is the interval between second elastic rod and the first elastic rod, be equipped with two sets of articulated mounting between first elastic rod and the second elastic rod, every articulated mounting of group includes the supporting part, both ends articulate through a horizontal articulated shaft respectively around the supporting part has a connecting rod, the free end of connecting rod articulates on the first elastic rod or the second elastic rod that correspond the side through a vertical articulated shaft, the lower extreme of supporting part is equipped with one and can makes first elastic rod and second elastic rod be in the stopper of same horizontal plane.

The ball picking device is novel in concept, ingenious in structure and high in practicability, and effectively solves the problems that the existing ball picking device is low in ball picking efficiency and inconvenient to put picked balls into corresponding ball serving devices.

Drawings

Fig. 1 is a plan view of the first elastic bar and the second elastic bar of the present invention in the same horizontal plane and not stretched.

Fig. 2 is a top view of the first and second elastic bars of the present invention in the same vertical plane and not stretched.

Fig. 3 is a top view of the first and second elastic bars of the present invention in the same vertical plane and stretched to bend.

Fig. 4 is a top view of the first and second elastic bars of the present invention in the same horizontal plane and stretched to bend.

Fig. 5 is a top view of the volleyball lifted by the first and second elastic rods when the first and second elastic rods are restored.

FIG. 6 is a left side view of the volleyball according to the present invention when the first and second resilient bars are returned to their original positions.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As can be seen from the drawings from 1 to 6, the invention comprises a movable U-shaped frame 1 which is horizontal and has a backward opening, a flat plate 2 extends backwards from the middle position of the bottom of the U-shaped frame 1, an electric telescopic rod 3 is fixed at the upper end of the flat plate 2, a U-shaped rod 4 which is horizontal and vertical projection and is superposed with the U-shaped frame 1 is arranged above the U-shaped frame 1, the middle position of the bottom of the U-shaped rod 4 is fixed on the electric telescopic rod 3 and can move up and down along with the extension and retraction of the electric telescopic rod 3, a winding wheel 5 with self-locking function is fixed at the upper end of the middle position of the bottom of the U-shaped rod 4, a rope 6 is wound and fixed on the winding wheel 5, two horizontal supporting rods 7 are respectively hinged at the two ends of the U-shaped rod 4, a first elastic rod 8 which is horizontal and can be elastically deformed is arranged at the rear side of the U-shaped rod 4, the first elastic rod 8 is fixedly connected with the free, the tightening rope 6 can enable the middle of the first elastic rod 8 to be bent forwards and deformed and enable the first elastic rod 8 to be deformed into an arc shape, a second elastic rod 9 which is parallel and has the same shape and structure functions is arranged on the rear side of the first elastic rod 8, a gap exists between the second elastic rod 9 and the first elastic rod 8, two groups of hinge devices are arranged between the first elastic rod 8 and the second elastic rod 9, each group of hinge devices comprises a supporting portion 10, the front end and the rear end of the supporting portion 10 are respectively hinged with a connecting rod 11 through a transverse hinge shaft, the free end of the connecting rod 11 is hinged on the first elastic rod 8 or the second elastic rod 9 on the corresponding side through a vertical hinge shaft, and a limiting block 12 which can enable the first elastic rod 8 and the second elastic rod 9 to be located on the same horizontal plane is arranged at the lower end of the supporting portion 10.

In order to realize the driving of the U-shaped frame 1, a sliding plate 13 is arranged on the front side of the flat plate 2, a pulley is arranged on the sliding plate 13, the rear end of the sliding plate 13 is hinged with the front end of the flat plate 2 through a horizontal hinge rod 14, the left side and the right side of the U-shaped frame 1 are respectively provided with a wheel, and the front end of the U-shaped frame 1 is provided with a push handle 15 extending upwards.

In order to realize that the U-shaped rod 4 can descend to a height capable of pushing volleyball to move and facilitate the inclination of the first elastic rod 8 and the second elastic rod 9, the electric telescopic rod 3 comprises an inner rod and an outer tube, the inner rod can extend out, the extending end of the inner rod is fixed on the flat plate 2, the U-shaped rod 4 is fixed on the outer tube, a horizontal pin shaft 16 is fixed at the front end of the U-shaped rod 4, a positioning sleeve 17 corresponding to the pin shaft 16 is arranged at the rear end of the outer tube, the front end of the pin shaft 16 is inserted into the positioning sleeve 17, a positioning pin 18 vertical to the axis is arranged on the positioning sleeve 17, a positioning hole is formed in the pin shaft 16, and when the positioning pin 18 is inserted into the.

In order to realize the driving and self-locking of the winding wheel 5, the winding wheel 5 is rotatably connected to the U-shaped rod 4 through a support, a ratchet wheel 19 is coaxially fixed on the winding wheel 5, a pawl matched with the ratchet wheel 19 is arranged on the support, a crank 20 is also coaxially fixed on the winding wheel 5, when the winding wheel 5 is driven by the crank 20 to tighten the rope 6, the pawl allows the ratchet wheel 19 to rotate, otherwise, the ratchet wheel 19 is blocked by the pawl.

In order to fixedly connect the free end of the strut 7 to the first elastic rod 8, a sleeve 21 is fixed to the free end of the strut 7 and is sleeved on the first elastic rod 8.

The ends of the first elastic rod 8 and the second elastic rod 9 are respectively fixed with a hinge part which is convenient for the vertical hinge shaft to hinge.

The specific working process of the invention is as follows: the initial state of this device is that locating pin 18 inserts the locating hole and spacing into the horizontality with U-shaped pole 4, loosen the pawl simultaneously and make and not stretched by rope 6 at first elastic rod 8, electric telescopic handle 3 is in the contraction state, U-shaped pole 4 is in the lowest extreme position, the axis height of first elastic rod 8 is less than the centre of sphere height of placing subaerial volleyball this moment, second elastic rod 9 is in the rear side of first elastic rod 8, and make first elastic rod 8 and second elastic rod 9 be in same level under stopper 12's effect this moment, the material of first elastic rod 8 can be the vaulting pole that vaulting pole jump motion used, this material is the glass fiber material.

When the device is used, the second elastic rod 9 firstly rotates to a position right above the first elastic rod 8 around the supporting part 10, the connecting rod 11 and the horizontal pin shaft 16 on the connecting rod, at the moment, the first elastic rod 8 is tightened through the crank 20, the ratchet wheel 19 and the pawl structure enable the winding wheel 5 to have a self-locking function, the middle position of the first elastic rod 8 is bent towards the front side in the tightening process of the rope 6 and gradually becomes an arc shape, because the first elastic rod 8 is connected with the second elastic rod 9 through the hinge device, when the first elastic rod 8 is pulled and bent by the rope 6, the second elastic rod 9 is also driven to be elastically deformed, at the moment, the second elastic rod 9 is above the first elastic rod 8 and forms an arc shape which is bent towards the front, in the process, the vertical hinge shaft on the connecting rod 11 provides a rotation pair, the superposition of the two elastic rods enables the height of the second elastic rod 9 to be higher than the center height of a volleyball, at the moment, a worker steps on the board of the sliding plate 13 with one foot and drives the sliding plate 13 with the other foot touching the ground, and meanwhile, the U-shaped frame 1 can be changed in direction by holding the push handle 15 by hand, so that the ground volleyball is collected while the device is driven.

When enough volleyballs are collected by the arc-shaped structure formed by the first elastic rod 8 and the second elastic rod 9, the second elastic rod 9 is manually turned to be parallel to the first elastic rod 8, the first elastic rod 8 and the second elastic rod 9 form a similar annular structure, the collected volleyballs are in the similar annular structure, the pawl is opened and the crank 20 is reversely rotated at the moment, so that the rope 6 is gradually loosened, the two elastic rods tend to be straight under the reset action of the first elastic rod 8 and the second elastic rod 9, the volleyballs in the similar annular structure are pushed to be a straight line, the volleyballs in the similar annular structure are pushed to be at the interval between the first elastic rod 8 and the second elastic rod 9 and are supported, the electric push rod is opened at the moment so that the electric push rod drives the U-shaped rod 4 to move upwards, and after the volleyballs move upwards, the locating pin 18 is pulled out and the pin shaft 16 is rotated in the locating sleeve 17, and the first elastic rod 8 and the second elastic rod 9 which are parallel to each other are inclined, volleyballs roll into the ball frame of the pitching machine along the inclined first elastic rod 8 and the second elastic rod 9, in order to prevent the hinge device from blocking the volleyballs, the inclined guide rod can be arranged on the ball frame, the volleyballs can be assisted to drop when the inclined ends of the first elastic rod 8 and the second elastic rod 9 are placed on the guide rod, or the volleyballs are manually assisted to pass through the hinge device, the first elastic rod 8 and the second elastic rod 9 are reset to the horizontal level after the completion and the electric telescopic rod 3 is retracted and reset.

Compared with the traditional equipment, the device has the following advantages:

1. this device is when collecting the volleyball, and the top of first elastic rod 8 is arranged in to second elastic rod 9, and two elastic rods at this moment form a fence column structure, and when promoting volleyball rapid motion, the volleyball can not cross two breaks away from the constraint of elastic rod, and two elastic rods are crooked into the arc at the ball picking-up in-process simultaneously, and the curved structure can effectively prevent breaking away from of volleyball when collecting the ball this moment for whole device is more reasonable when picking up the ball.

2. This device is picked up ball back and is changeed second elastic rod 9 and make second elastic rod 9 and second elastic rod 9 constitute a class ring form, and the volleyball is tied in annular structure this moment, along with the relaxation of rope 6 under the reset action of elastic rod, irregularly arranged volleyball is put in order into a horizontality and is supported by two elastic rods for whole process lifts up the volleyball and arranges in order convenient subsequent input.

3. The volleyball after accomplishing the arrangement is raised by electric telescopic handle 3 to break away from the rotation that the hand can realize U-shaped pole 4 at locating pin 18, finally realize the slope of two elastic rods, the volleyball of elastic rod slope on two elastic rods is under the effect of dead weight, and accomplishes the volleyball and move automatically to the ball frame of service robot under the guide effect of elastic rod, makes whole process intelligence high efficiency more.

Claims

1. A volleyball ball picking device comprises a movable U-shaped frame (1) which is horizontal and has a backward opening, and is characterized in that a flat plate (2) extends backwards from the middle position of the bottom of the U-shaped frame (1), an electric telescopic rod (3) is fixed at the upper end of the flat plate (2), a U-shaped rod (4) which is horizontal and vertical in projection and is superposed with the U-shaped frame (1) is arranged above the U-shaped frame (1), the middle position of the bottom of the U-shaped rod (4) is fixed on the electric telescopic rod (3) and can move up and down along with the expansion and contraction of the electric telescopic rod (3), a winding wheel (5) with a self-locking function is fixed at the upper end of the middle position of the bottom of the U-shaped rod (4), a rope (6) is wound on the winding wheel (5), a horizontal supporting rod (7) is respectively hinged at two end parts of the U-shaped rod (4), a first elastic rod (8) which is horizontal and can be elastically deformed is, the first elastic rod (8) is fixedly connected with the free ends of the two support rods (7), the free end of the rope (6) is fixed in the middle of the first elastic rod (8), the rope (6) is tightened to enable the middle of the first elastic rod (8) to be bent forwards and deformed and enable the first elastic rod (8) to be deformed into an arc shape, a second elastic rod (9) which is parallel and has the same shape and structure functions is arranged on the rear side of the first elastic rod (8), a gap is formed between the second elastic rod (9) and the first elastic rod (8), two groups of hinge devices are arranged between the first elastic rod (8) and the second elastic rod (9), each group of hinge devices comprises a supporting part (10), the front end and the rear end of the supporting part (10) are respectively hinged with a connecting rod (11) through a transverse hinge shaft, the free end of the connecting rod (11) is hinged on the first elastic rod (8) or the second elastic rod (9) on the corresponding side of the vertical hinge shaft, the lower end of the supporting part (10) is provided with a limiting block (12) which can enable the first elastic rod (8) and the second elastic rod (9) to be positioned on the same horizontal plane.

2. A volleyball ball picking-up device according to claim 1, wherein a sliding plate (13) is arranged on the front side of the flat plate (2), pulleys are arranged on the sliding plate (13), the rear end of the sliding plate (13) is hinged with the front end of the flat plate (2) through a horizontal hinge rod (14), wheels are respectively arranged on the left side and the right side of the U-shaped frame (1), and a push handle (15) extending upwards is arranged at the front end of the U-shaped frame (1).

3. The volleyball ball picking device according to claim 1, wherein the electric telescopic rod (3) comprises an inner rod and an outer tube, the inner rod can be extended, the extended end of the inner rod is fixed on the flat plate (2), the U-shaped rod (4) is fixed on the outer tube, a horizontal pin shaft (16) is fixed at the front end of the U-shaped rod (4), a positioning sleeve (17) corresponding to the pin shaft (16) is arranged at the rear end of the outer tube, the front end of the pin shaft (16) is inserted into the positioning sleeve (17), a positioning pin (18) with an axis vertical to the positioning sleeve (17) is arranged on the positioning sleeve (17), a positioning hole is formed in the pin shaft (16), and when the positioning pin (18) is inserted into the positioning hole, the U-shaped rod (4).

4. A volleyball ball pickup apparatus according to claim 1, wherein the spool (5) is rotatably connected to the U-shaped bar (4) via a bracket, the spool (5) is coaxially fixed with a ratchet (19), the bracket is provided with a pawl cooperating with the ratchet (19), the spool (5) is also coaxially fixed with a crank (20), the pawl allows the ratchet (19) to rotate when the spool (5) is driven by the crank (20) to tighten the rope (6), and otherwise the ratchet (19) is locked by the pawl.

5. A volleyball ball pickup apparatus according to claim 1, wherein the free end of the strut (7) is fitted with a sleeve (21) fitted over the first resilient bar (8).

6. A volleyball ball pickup apparatus according to claim 1, wherein a hinge portion facilitating a vertical hinge axis hinge is fixed to each end of the first resilient lever (8) and the second resilient lever (9).