CN108364533B

CN108364533B - Number drawing and answering equipment for education and teaching

Info

Publication number: CN108364533B
Application number: CN201810127049.1A
Authority: CN
Inventors: 李娜; 鄢月红
Original assignee: Shandong Womens University
Current assignee: Shandong Womens University
Priority date: 2018-02-08
Filing date: 2018-02-08
Publication date: 2020-04-17
Anticipated expiration: 2038-02-08
Also published as: CN108364533A

Abstract

The invention relates to a number drawing and answering device, in particular to a number drawing and answering device for education and teaching. The invention aims to solve the technical problem of providing a number drawing and answering device for education and teaching, which is mechanically drawn, fair and impartial and is beneficial to education and teaching. In order to solve the technical problem, the invention provides a number drawing and answering device for education and teaching, which comprises a support, a number drawing box, a guide rail, a receiving groove, a rotary disc, a circular groove frame, a first rotating shaft, a motor, a connecting device, a lifting rod, a support rod, a curved rod, a sliding sleeve and the like; supports are arranged on the left rear side, the right rear side, the left front side and the right front side of the bottom of the number drawing box, a guide rail is arranged on the bottom of the number drawing box, and a receiving groove is connected to the right lower side of the guide rail. The invention achieves the effects of mechanical number drawing, fairness and contribution to education and teaching, the equipment adopts the rotation of the turntable, the fan blows the numbering ball to move, the numbering ball falls randomly in the first groove, the fairness is strong, and the education and teaching effects are improved.

Description

Number drawing and answering equipment for education and teaching

Technical Field

The invention relates to a number drawing and answering device, in particular to a number drawing and answering device for education and teaching.

Background

The teaching of education and teaching is theoretical strong partially, the teacher of giving lessons is in class, need to carry out number drawing question to classmates, be on the one hand in order to mobilize the enthusiasm in class of classmates, on the other hand, in order to let the teacher know student's study and receive the digestion condition, but the number drawing of giving lessons now has serious unfairness, the teacher is inclined to the good student of study, the emotional affairs are serious, the beginners of violating the questioning method, can't reach corresponding inspection effect, and cause the better student of score to produce the satisfied psychology of oneself easily, the relatively poor student of score produces the psychology of self-mutism, do not utilize to cultivate high-quality student, the influence is far away, consequently, need to develop a machinery number drawing, fair and be favorable to education and use number drawing answer equipment for teaching of education and teaching.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to overcome the defects that the number drawing for education and teaching at present has serious unfairness, teachers are emphatic to study students, have serious emotional use, violate the original intention of questioning methods, cannot achieve corresponding checking effects, are easy to cause students with better scores to generate self-satisfied psychology, students with relatively poor scores to generate self-inferior psychology and do not need to cultivate high-quality students, and the technical problem to be solved by the invention is to provide the number drawing and answering equipment for education and teaching, which is beneficial to mechanical number drawing, fair and education and teaching.

(2) Technical scheme

In order to solve the technical problem, the invention provides a number drawing and answering device for education and teaching, which comprises a support, a number drawing box, a guide rail, a receiving groove, a rotary disc, a circular groove frame, a first rotary shaft, a motor, a connecting device, a lifting rod, a support rod, a curved rod, a sliding sleeve, a placing box, a number ball, an inserting block, a fan, a glass plate, a feeding pipe, a soft plug and a shielding plate, wherein the support is arranged on the left rear part, the right rear part, the left front part and the right front part of the bottom of the number drawing box, the guide rail is arranged on the bottom of the number drawing box, the receiving groove is connected to the right lower part of the guide rail, the receiving groove and the guide rail are both positioned in the middle of the support on the front and the rear parts, the circular groove frame is arranged on the outer side of the number drawing box and is positioned right above the guide rail, the left wall of the circular groove frame is provided with a first round hole, the rotary type automatic number drawing machine is characterized in that a shielding plate is rotatably arranged on the right side of the inlet pipe, a soft plug is arranged on the left side of the shielding plate, the soft plug is matched with the inlet pipe, a placing box is arranged on the right side in the number drawing box, the placing box is communicated with the inlet pipe, a guide hole is formed in the top wall of the placing box, a through hole is formed in the bottom wall of the placing box, the through hole is positioned right above a circular groove frame, a number ball is placed in the placing box, the number ball is a hollow plastic ball, a support rod and a motor are arranged on the left side in the number drawing box, the motor is positioned below the support rod, a first rotating shaft is arranged on the right side of the motor, the first rotating shaft penetrates through a first circular hole, a rotating disc is arranged at the right end of the first rotating shaft, the rotating disc is positioned in the circular groove frame, a first, the guiding hole is passed to bent shape pole right part, and bent shape pole right part lower extreme is provided with the inserted block, and the inserted block left and right sides all is provided with the fan with both sides around.

Preferably, the connecting device comprises a fixed block, a swing rod, a round block, an arc-shaped slide rail, a first triangular plate, a first disc, a slide shaft, a first circular groove, a second disc, a second circular groove and a second triangular plate, wherein the round block is arranged at the bottom end of the lifting rod, the slide shaft is arranged on the right side of the round block, the fixed block is arranged on the front side in the number drawing box, the swing rod is hinged and connected on the right side of the fixed block, the arc-shaped slide rail is hinged and connected on the right side of the rear end of the swing rod, the slide shaft is positioned in the arc-shaped slide rail and matched with the arc-shaped slide rail, the first disc and the second disc are eccentrically arranged on the first rotating shaft, the second disc is positioned on the left side of the first disc, the second disc is peripherally contacted and provided with the second circular groove, the second circular groove is contacted and matched with the second disc, the first triangular plate is arranged on the second circular groove, the upper, the first circular groove is in contact fit with the first disc, a second triangular plate is arranged on the first circular groove, and the upper portion of the second triangular plate is hinged to the right side of the front end of the arc-shaped sliding rail.

Preferably, the number drawing box further comprises a soft sleeve, a bearing seat, a rotating handle, a rotating rod and a connecting plate, wherein the bearing seat is symmetrically arranged at the front and back of the bottom of the number drawing box, the rotating rod is installed on the bearing seat, the connecting plate is arranged on the rotating rod, the right side of the connecting plate is connected with the left side of the guide rail, the rotating handle is arranged at the front end of the rotating rod, the soft sleeve is arranged at the left part of the rotating handle, and the soft sleeve is made of rubber.

Preferably, the guide rail device further comprises a first spring, a swing plate, a clamping block, a moving groove, a second spring and a moving rod, the moving groove is formed in the bottom of the guide rail, a jack is formed in the bottom wall of the moving groove, the second spring is arranged in the moving groove, the moving rod is arranged at the tail end of the second spring, a second groove is formed in the upper portion of the moving rod, the first spring is arranged in the second groove, the clamping block is connected to the tail end of the first spring, the clamping block is matched with the jack, the swing plate is connected to the right end of the moving rod in a rotating mode, and the bottom.

Preferably, still including the cam, the second pivot, remove the frame, first slider, first slide rail and strike the piece, circular slot frame right side wall is provided with the second round hole, the second round hole is located first round hole right-hand side, the carousel right side is connected with the second pivot, the second pivot passes the second round hole, second pivot right-hand member is provided with the cam, the cam is located places the case below, take out number case right side below longitudinal symmetry formula and be provided with first slide rail, be provided with first slider on the first slide rail, first slider left side is connected with removes the frame, it is peripheral to remove the frame, remove frame and cam cooperation, it is provided with strikes the piece to remove the frame top, strike the piece and be located and place case right side below.

Preferably, the number drawing box comprises a second sliding block, a drawing handle, a placing groove and a second sliding rail, the second sliding rail is arranged on the left side of the number drawing box in an up-and-down symmetrical mode, the second sliding rail is located between the supporting rod and the motor, the second sliding block is arranged on the second sliding rail, the placing groove is connected to the right side of the second sliding block, the placing groove is in contact connection with the front wall of the number drawing box, and the drawing handle is arranged on the front side of the number drawing box.

The working principle is as follows: initially, numbers of student numbers are engraved on the number ball, a person places the equipment at a teacher desk, the right side faces students, the students can observe the number ball from a glass plate, when a teacher needs to take out students to answer questions, a motor is started to rotate for a circle, a fan is started, a first rotating shaft rotates for a circle, a connecting device is started, a lifting rod moves up and down, a curved rod moves up and down to drive an inserting block to push the number ball up and down, the fan blows the number ball up and down to move the number ball, in the process, the rotating disc rotates for a circle to drive a first groove to rotate for a circle, when the first groove rotates to a through hole, namely the opening of the first groove is right upward, the rotating disc is communicated with a placing box, the number ball falls into the first groove, the motor continues to rotate, the rotating disc is in contact with the inner wall of a circular groove frame, the number ball cannot fall in the first groove, when the opening of the first groove is right downward, first recess and the incasement side intercommunication of taking out a number, drop to the number ball whereabouts in the first recess to the guide rail on, then along with guide rail landing to receiving the inslot, at this moment, the motor rotates a week and finishes, close fan and motor, the mr takes out the number ball of receiving the inslot, the number on the number ball is the student's number of taking out a study on the back promptly, the student's answer finishes the back, the mr is in the same direction as changeing the sunshade, the cork is taken out from the inlet pipe, the mr can drop into the inlet pipe with the number ball that just takes out in, the number ball falls into once more along with the inlet pipe and places the incasement, reverse the sunshade, pack the cork in the inlet pipe, repeat above-mentioned action, can take out a number at random, fair.

Because the connecting device comprises a fixed block, a swing rod, a round block, an arc-shaped slide rail, a first triangular plate, a first disc, a sliding shaft, a first circular groove, a second disc, a second circular groove and a second triangular plate, the bottom end of the lifting rod is provided with the round block, the right side of the round block is provided with the sliding shaft, the front side in the number drawing box is provided with the fixed block, the right side of the fixed block is hinged and connected with the swing rod, the right side of the rear end of the swing rod is hinged and connected with the arc-shaped slide rail, the sliding shaft is positioned in the arc-shaped slide rail and matched with the arc-shaped slide rail, the first disc and the second disc are eccentrically arranged on the first rotating shaft, the second disc is positioned on the left side of the first disc, the periphery of the second disc is provided with the second circular groove in a contact way, the second circular groove is in a contact way with the second disc, the upper part of the first triangular plate is, the first circular groove is in contact fit with the first disc, the second triangular plate is arranged on the first circular groove, the upper portion of the second triangular plate is hinged with the right side of the front end of the arc-shaped sliding rail, so that in the process that the motor rotates for a circle, the first rotating shaft rotates along with the first circular groove, the first disc and the second disc both rotate along with the second circular groove, the first disc drives the second triangular plate to move between the upper left side and the lower right side, the second disc drives the first triangular plate to move between the lower left side and the upper right side, when the second triangular plate moves towards the upper left side, the first triangular plate moves towards the lower left side, the arc-shaped sliding rail swings towards the upper left side, the sliding shaft slides on the arc-shaped sliding rail to push the round block to move upwards, the lifting rod moves upwards to drive the curved rod to move upwards to enable the fan to move upwards to blow the number ball, then, the second triangular plate moves towards the lower right side, the first triangular plate moves towards the, the sliding shaft moves in the arc-shaped sliding rail, the pulling round block moves downwards, the lifting rod moves downwards, the curved rod moves downwards, the fan moves downwards, the number ball below the fan is blown, the inserting block is downwards inserted into the number ball stack, and therefore the number ball in the placing box moves, and the number ball can be selected fairly and fairly.

Because still including the soft cover, the bearing frame, the turning handle, bull stick and connecting plate, take out number bottom of the case portion longitudinal symmetry formula be provided with the bearing frame, install the bull stick on the bearing frame, be provided with the connecting plate on the bull stick, the connecting plate right side is connected with the guide rail left side, the bull stick front end is provided with the turning handle, the bull stick left part is provided with the soft cover, the material of soft cover is rubber, so the staff holds the turning handle, the hand contacts with the soft cover, the hand is difficult for skidding and be injured, when people anticlockwise rotation turning handle, drive bull stick anticlockwise rotation, connecting plate anticlockwise rotation, guide rail receiving tank and anticlockwise rotation, when the guide rail reverses to the level, the guide rail shelters from circular slot frame below, can prevent the interior deposition of circular slot frame, be convenient for pack up this equipment simultaneously and place, when the guide rail that needs reuse, clockwise rotation turning handle, make guide.

Because the device also comprises a first spring, a swing plate, a clamping block, a moving groove, a second spring and a moving rod, the bottom of the guide rail is provided with the moving groove, the bottom wall of the moving groove is provided with a jack, the moving groove is internally provided with the second spring, the tail end of the second spring is provided with the moving rod, the upper part of the moving rod is provided with a second groove, the second groove is internally provided with the first spring, the tail end of the first spring is connected with the clamping block, the clamping block is matched with the jack, the right end of the moving rod is rotatably connected with the swing plate, the bottom of the swing plate is connected with the top of the left wall of the receiving groove, initially, the first spring is in a compressed state, a person rotates a rotating handle reversely to enable the guide rail to be horizontal, the right lower right corner of the receiving groove is tilted, the device is inconvenient to be folded, so that the person rotates the swing plate forwards, the swing, the fixture block is inserted into the jack under the action of the elastic force of the first spring, the movable rod is fixed, at the moment, the receiving box is located at a proper position right below the number drawing box, the equipment is convenient to pack and place, the fixture block is extruded to move upwards when the receiving groove needs to be used, the movable rod moves rightwards to reset under the action of the elastic force of the second spring, and then the swinging plate is rotated to enable the receiving groove to rotate to reset.

Because the device also comprises a cam, a second rotating shaft, a moving frame, a first sliding block, a first sliding rail and a knocking block, the right wall of the circular groove frame is provided with a second round hole, the second round hole is positioned right to the first round hole, the right side of the rotating disc is connected with the second rotating shaft, the second rotating shaft passes through the second round hole, the right end of the second rotating shaft is provided with the cam, the cam is positioned below the placing box, the first sliding rail is symmetrically arranged at the right lower part of the number drawing box in an up-and-down manner, the first sliding block is arranged on the first sliding rail, the left side of the first sliding block is connected with the moving frame, the moving frame is positioned at the periphery of the cam, the moving frame is matched with the cam, the knocking block is arranged at the top of the moving frame, the knocking block is positioned at the right lower part of the placing box, the knocking block is made of natural rubber, when the first rotating shaft rotates, the rotating disc, strengthen the vibration range of number ball, strengthen the fairness of this equipment.

Because still including the second slider, draw the handle, standing groove and second slide rail, take out number case left side longitudinal symmetry formula and be provided with the second slide rail, the second slide rail is located between branch and the motor, be provided with the second slider on the second slide rail, second slider right side is connected with the standing groove, the standing groove is connected with the contact of taking out number case antetheca, take out number case front side and be provided with the handle, when needs place on this equipment at some useless number balls, the manual pulling of people draws the handle and moves forward, take out the standing groove from taking out the number case, can utilize the standing groove to place, afterwards, the people pushes the standing groove and moves backward to reseing.

(3) Advantageous effects

The invention achieves the effects of mechanical number drawing, fairness and contribution to education and teaching, the equipment adopts the rotation of the turntable, the fan blows the numbering ball to move, the numbering ball falls randomly in the first groove, the fairness is strong, and the education and teaching effects are improved.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a right-side view of the connecting device of the present invention.

Fig. 3 is a first partial schematic front view structure of the present invention.

Fig. 4 is a second partial schematic front view structure of the present invention.

Fig. 5 is a third partial schematic front view structure of the present invention.

Fig. 6 is a front view of a fourth partial structure of the present invention.

The labels in the figures are: 1-support, 2-drawer box, 3-guide rail, 4-receiving groove, 5-first groove, 6-rotary table, 7-through hole, 8-first round hole, 9-round groove frame, 10-first rotating shaft, 11-motor, 12-connecting device, 121-fixed block, 122-swing rod, 123-round block, 124-arc slide rail, 125-first triangular plate, 126-first disk, 127-sliding shaft, 128-first circular groove, 129-second disk, 1210-second circular groove, 1211-second triangular plate, 13-lifting rod, 14-support rod, 15-curved rod, 16-sliding sleeve, 17-placing box, 18-guide hole, 19-number ball, 20-inserting block, 21-fan, 22-glass plate, 23-feeding pipe, 24-soft plug, 25-shielding plate, 26-soft sleeve, 27-bearing seat, 28-rotating handle, 29-rotating rod, 30-connecting plate, 31-first spring, 32-swinging plate, 33-second groove, 34-clamping block, 35-moving groove, 36-second spring, 37-inserting hole, 38-moving rod, 39-cam, 40-second rotating shaft, 41-moving frame, 42-first sliding block, 43-first sliding rail, 44-knocking block, 45-second round hole, 46-second sliding block, 47-pulling handle, 48-placing groove and 49-second sliding rail.

Detailed Description

The invention is further described below with reference to the figures and examples.

Example 1

A number drawing and answering device for education and teaching is shown in figures 1-6 and comprises a support 1, a number drawing box 2, a guide rail 3, a receiving groove 4, a rotary disc 6, a circular groove frame 9, a first rotary shaft 10, a motor 11, a connecting device 12, a lifting rod 13, a support rod 14, a curved rod 15, a sliding sleeve 16, a placing box 17, a number ball 19, an inserting block 20, a fan 21, a glass plate 22, a feeding pipe 23, a soft plug 24 and a shielding plate 25, wherein the support 1 is arranged on the left rear side, the right rear side, the left front side and the right front side of the bottom of the number drawing box 2, the guide rail 3 is arranged at the bottom of the number drawing box 2, the receiving groove 4 is connected to the right lower side of the guide rail 3, the receiving groove 4 and the guide rail 3 are both positioned in the middle of the support 1 on the front and rear sides, the circular groove frame 9 is arranged on the right side of the bottom of the number drawing box 2, the circular groove frame 9 is positioned right above, the right wall of the number drawing box 2 is provided with a glass plate 22 and a feeding pipe 23, the feeding pipe 23 is positioned above the glass plate 22, the right side of the feeding pipe 23 is rotatably provided with a shielding plate 25, the left side of the shielding plate 25 is provided with a soft plug 24, the soft plug 24 is matched with the feeding pipe 23, the right side in the number drawing box 2 is provided with a placing box 17, the placing box 17 is communicated with the feeding pipe 23, the top wall of the placing box 17 is provided with a guide hole 18, the bottom wall of the placing box 17 is provided with a through hole 7, the through hole 7 is positioned right above a circular groove frame 9, a number ball 19 is placed in the placing box 17, the number ball 19 is a hollow plastic ball, the left side in the number drawing box 2 is provided with a support rod 14 and a motor 11, the motor 11 is positioned below the support rod 14, the right side of the motor 11 is provided with a first rotating shaft 10, the first rotating shaft 10 passes through, be provided with connecting device 12 on first pivot 10, connecting device 12 is located carousel 6 left, and branch 14 right-hand member is provided with sliding sleeve 16, is provided with lifter 13 in the sliding sleeve 16, and lifter 13 bottom is connected with connecting device 12 top, and lifter 13 top is provided with bent shape pole 15, and the guiding hole 18 is passed to bent shape pole 15 right part, and bent shape pole 15 right part lower extreme is provided with inserted block 20, and the inserted block 20 left and right sides all is provided with fan 21 around with.

Example 2

The connecting device 12 comprises a fixed block 121, a swing rod 122, a round block 123, an arc-shaped slide rail 124, a first triangular plate 125, a first disc 126, a sliding shaft 127, a first circular groove 128, a second disc 129, a second circular groove 1210 and a second triangular plate 1211, the round block 123 is arranged at the bottom end of the lifting rod 13, the sliding shaft 127 is arranged at the right side of the round block 123, the fixed block 121 is arranged at the front side in the number drawing box 2, the swing rod 122 is hinged at the right side of the fixed block 121, the arc-shaped slide rail 124 is hinged at the right side of the rear end of the swing rod 122, the sliding shaft 127 is positioned in the arc-shaped slide rail 124, the sliding shaft 127 is matched with the arc-shaped slide rail 124, the first disc 126 and the second disc 129 are eccentrically arranged on the first rotating shaft 10, the second disc 129 is positioned at the left side of the first disc 126, the second circular groove 1210 is arranged at the periphery of the second disc 129 in a contact manner, the, the upper part of the first triangle 125 is hinged with the left side of the rear end of the arc-shaped slide rail 124, the periphery of the first disc 126 is provided with a first circular groove 128 in a contact manner, the first circular groove 128 is matched with the first disc 126 in a contact manner, the first circular groove 128 is provided with a second triangle 1211, and the upper part of the second triangle 1211 is hinged with the right side of the front end of the arc-shaped slide rail 124.

Example 3

The automatic number drawing box is characterized by further comprising a soft sleeve 26, a bearing seat 27, a rotating handle 28, a rotating rod 29 and a connecting plate 30, wherein the bearing seat 27 is symmetrically arranged at the front and back of the bottom of the number drawing box 2, the rotating rod 29 is mounted on the bearing seat 27, the connecting plate 30 is arranged on the rotating rod 29, the right side of the connecting plate 30 is connected with the left side of the guide rail 3, the rotating handle 28 is arranged at the front end of the rotating rod 29, the soft sleeve 26 is arranged on the left portion of the rotating handle 28, and the soft.

Example 4

Still including first spring 31, swing board 32, fixture block 34, shifting chute 35, second spring 36 and

movable rod

38, 3 bottoms of guide rail are provided with

shifting chute

35, 35 diapalls of shifting chute are provided with jack 37, be provided with second spring 36 in the shifting chute 35, second spring 36 end is provided with movable rod 38, movable rod 38 upper portion is provided with second recess 33, be provided with first spring 31 in the second recess 33, first spring 31 end-to-end connection has fixture block 34, fixture block 34 cooperates with jack 37, movable rod 38 right-hand member rotary type is connected with swing board 32, swing board 32 bottom is connected with receiving groove 4 left wall top.

Still including cam 39, second pivot 40, remove frame 41, first slider 42, first slide rail 43 and strike piece 44, circular slot frame 9 right side wall is provided with second round hole 45, second round hole 45 is located first round hole 8 right-hand side, 6 right sides of carousel are connected with second pivot 40, second pivot 40 passes

second round hole

45, 40 right-hand members of second pivot are provided with cam 39, cam 39 is located and places case 17 below, number drawing case 2 right side below longitudinal symmetry formula is provided with first slide rail 43, be provided with first slider 42 on first slide rail 43, first slider 42 left side is connected with removes frame 41, it is peripheral that remove frame 41 is located cam 39, remove frame 41 and cam 39 cooperation, it is provided with and strikes piece 44 to remove frame 41 top, strike piece 44 and be located and place case 17 right side below.

The drawing box is characterized by further comprising a second sliding block 46, a drawing handle 47, a placing groove 48 and a second sliding rail 49, the second sliding rail 49 is symmetrically arranged on the left side of the drawing box 2 up and down, the second sliding rail 49 is located between the supporting rod 14 and the motor 11, the second sliding block 46 is arranged on the second sliding rail 49, the placing groove 48 is connected to the right side of the second sliding block 46, the placing groove 48 is in contact connection with the front wall of the drawing box 2, and the drawing handle 47 is arranged on the front side of the drawing box 2.

The working principle is as follows: initially, the number ball 19 is engraved with the numbers of the student numbers, the device is placed at a teacher's desk with the right side facing the student, the student can observe the number ball 19 from the glass plate 22, when the teacher needs to take a student to answer a question, the motor 11 is started to rotate for one circle, the fan 21 is turned on, the first rotating shaft 10 rotates for one circle, the connecting device 12 is started, the lifting rod 13 moves up and down, the curved rod 15 moves up and down to drive the insert 20 to push the number ball 19 up and down, the fan 21 blows the number ball 19 up and down, the number ball 19 moves, in the process, the rotating disc 6 rotates for one circle to drive the first groove 5 to rotate for one circle, when the first groove 5 rotates to the through hole 7, namely the opening of the first groove 5 is right up, the rotating disc 6 is communicated with the placing box 17, the number ball 19 falls into the first groove 5, the motor 11 continues to rotate, the rotating disc 6 contacts with the inner wall of the circular groove frame 9, the number ball 19 does not fall in the first groove 5, when the opening of the first groove 5 faces downwards, the first groove 5 is communicated with the outer side of the number drawing box 2, the number ball 19 falling into the first groove 5 falls onto the guide rail 3, then the number ball slides into the receiving groove 4 along with the guide rail 3, at the moment, the motor 11 rotates for one circle, the fan 21 and the motor 11 are turned off, a teacher takes out the number ball 19 in the receiving groove 4, the number on the number ball 19 is the student number drawn back, after the student answers, the teacher rotates the shielding plate 25 in the same direction, the soft plug 24 is drawn out from the feeding pipe 23, the teacher can put the number ball 19 taken out into the feeding pipe 23, the number ball 19 falls into the placing box 17 again along with the feeding pipe 23, the shielding plate 25 is reversed, the soft plug 24 is plugged into the feeding pipe 23, and the above actions are repeated, so that the number drawing can be carried out randomly, and the number drawing is fair and fair.

Because the connecting device 12 comprises a fixed block 121, a swing rod 122, a round block 123, an arc-shaped slide rail 124, a first triangular plate 125, a first disc 126, a sliding shaft 127, a first circular groove 128, a second disc 129, a second circular groove 1210 and a second triangular plate 1211, the round block 123 is arranged at the bottom end of the lifting rod 13, the sliding shaft 127 is arranged at the right side of the round block 123, the fixed block 121 is arranged at the front side in the number drawing box 2, the swing rod 122 is hinged at the right side of the fixed block 121, the arc-shaped slide rail 124 is hinged at the right side of the rear end of the swing rod 122, the sliding shaft 127 is positioned in the arc-shaped slide rail 124, the sliding shaft 127 is matched with the arc-shaped slide rail 124, the first disc 126 and the second disc 129 are eccentrically arranged on the first rotating shaft 10, the second disc 129 is positioned at the left side of the first disc 126, the second circular groove 1210 is arranged at the periphery of the second disc 129 in a contact manner, the, the upper part of the first triangle 125 is hinged with the left side of the rear end of the arc-shaped slide rail 124, the periphery of the first disc 126 is provided with a first circular groove 128 in a contact way, the first circular groove 128 is matched with the first disc 126 in a contact way, the first circular groove 128 is provided with a second triangle 1211, the upper part of the second triangle 1211 is hinged with the right side of the front end of the arc-shaped slide rail 124, so that in the process of one circle of rotation of the motor 11, the first rotating shaft 10 rotates along with the first circular groove, the first disc 126 and the second disc 129 rotate along with the first circular groove, the first disc 126 drives the second triangle 1211 to move between the upper left and the lower right, the second disc 129 drives the first triangle 125 to move between the lower left and the upper right, when the second triangle 1211 moves to the upper left, the first triangle 125 moves to the lower left, the arc-shaped slide rail 124 swings to the upper left, the sliding shaft 127 slides on the arc-shaped slide rail 124, the lifting rod 13 moves upwards to drive the curved rod 15 to move upwards, so that the fan 21 moves upwards to blow the number balls 19, then the second triangular plate 1211 moves downwards to the right, the first triangular plate moves upwards to the right, the arc-shaped slide rail 124 inclines downwards to the left, the sliding shaft 127 moves in the arc-shaped slide rail 124, the round block 123 is pulled to move downwards, the lifting rod 13 moves downwards, the curved rod 15 moves downwards, so that the fan 21 moves downwards to blow the number balls 19 below, and the inserting block 20 is inserted downwards into the number balls 19 stack, so that the number balls 19 in the placing box 17 move, and the number balls 19 can be selected fairly and rightly.

Because the utility model also comprises a soft sleeve 26, a bearing seat 27, a rotating handle 28, a rotating rod 29 and a connecting plate 30, the bearing seat 27 is symmetrically arranged at the front and back of the bottom of the number drawing box 2, the rotating rod 29 is arranged on the bearing seat 27, the connecting plate 30 is arranged on the rotating rod 29, the right side of the connecting plate 30 is connected with the left side of the guide rail 3, the rotating handle 28 is arranged at the front end of the rotating rod 29, the soft sleeve 26 is arranged at the left part of the rotating handle 28, and the soft sleeve 26 is made of rubber, so that the rotating handle 28 is held by hands, the hands are contacted with the soft sleeve 26, the hands are not easy to slip and hurt, when the rotating handle 28 is rotated anticlockwise by people, the rotating rod 29 is driven to rotate anticlockwise, the connecting plate 30 rotates anticlockwise, the guide rail 3 and the receiving groove 4 rotate anticlockwise, when the guide rail 3 is rotated to be horizontal, the guide rail 3 shields the lower part of the circular groove frame 9, thereby, the guide rail 3 and the receiving groove 4 are reset.

Because the device further comprises a first spring 31, a swinging plate 32, a clamping block 34, a moving groove 35, a second spring 36 and a moving rod 38, the bottom of the guide rail 3 is provided with the moving groove 35, the bottom wall of the moving groove 35 is provided with an insertion hole 37, the moving groove 35 is internally provided with the second spring 36, the tail end of the second spring 36 is provided with the moving rod 38, the upper part of the moving rod 38 is provided with a second groove 33, the second groove 33 is internally provided with the first spring 31, the tail end of the first spring 31 is connected with the clamping block 34, the clamping block 34 is matched with the insertion hole 37, the right end of the moving rod 38 is rotatably connected with the swinging plate 32, the bottom of the swinging plate 32 is connected with the top of the left wall of the receiving groove 4, initially, the first spring 31 is in a compression state, the human reverse rotation handle 28 enables the guide rail 3 to be horizontal, the right lower corner of the receiving groove 4 is, promote receiving groove 4 and move left, the movable rod 38 moves left, in this process, second spring 36 compresses, when fixture block 34 is located jack 37 department, fixture block 34 inserts in jack 37 under the spring action of first spring 31, it is fixed with movable rod 38, at this moment, the receiving box is located and takes out number case 2 under the suitable position, be convenient for pack up and place of this equipment, when needs use receiving groove 4, extrusion fixture block 34 upward movement, the movable rod 38 moves right to reseing under the spring action of second spring 36, subsequently, rotate swing board 32, make receiving groove 4 rotate to reseing can.

Because the rotary disc further comprises a cam 39, a second rotating shaft 40, a moving frame 41, a first sliding block 42, a first sliding rail 43 and a knocking block 44, the right wall of the circular groove frame 9 is provided with a second round hole 45, the second round hole 45 is positioned right to the first round hole 8, the right side of the rotary disc 6 is connected with the second rotating shaft 40, the second rotating shaft 40 passes through the second round hole 45, the right end of the second rotating shaft 40 is provided with the cam 39, the cam 39 is positioned below the placing box 17, the right lower part of the number drawing box 2 is provided with the first sliding rail 43 in an up-and-down symmetrical manner, the first sliding rail 43 is provided with the first sliding block 42, the left side of the first sliding block 42 is connected with the moving frame 41, the moving frame 41 is positioned on the periphery of the cam 39, the moving frame 41 is matched with the cam 39, the knocking block 44 is arranged on the top of the moving frame 41, the knocking block 44 is positioned right lower part of the placing box 17, and, the cam 39 rotates along with the cam, so that the moving frame 41 moves up and down, the knocking block 44 knocks the bottom of the placing box 17 at intervals, the vibration amplitude of the number ball 19 is enhanced, and the fairness of the device is enhanced.

Because the device also comprises a second sliding block 46, a pull handle 47, a placing groove 48 and a second sliding rail 49, the left side of the number drawing box 2 is provided with the second sliding rail 49 in an up-down symmetrical mode, the second sliding rail 49 is positioned between the supporting rod 14 and the motor 11, the second sliding block 46 is arranged on the second sliding rail 49, the right side of the second sliding block 46 is connected with the placing groove 48, the placing groove 48 is in contact connection with the front wall of the number drawing box 2, the pull handle 47 is arranged on the front side of the number drawing box 2, when the number drawing box 2 needs to be placed on some useless number balls 19, a person manually pulls the pull handle 47 to move forwards, the placing groove 48 is pulled out from the number drawing box 2, the placing groove 48 can be used for placing, and then the person pushes the placing groove 48 to move backwards to.

The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A number drawing answering device for education and teaching is characterized by comprising a support (1), a number drawing box (2), a guide rail (3), a receiving groove (4), a rotary disc (6), a circular groove frame (9), a first rotary shaft (10), a motor (11), a connecting device (12), a lifting rod (13), a support rod (14), a curved rod (15), a sliding sleeve (16), a placing box (17), a number ball (19), an inserting block (20), a fan (21), a glass plate (22), a feeding pipe (23), a soft plug (24) and a shielding plate (25), wherein the support (1) is arranged on the left rear side, the right rear side, the left front side and the right front side of the bottom of the number drawing box (2), the guide rail (3) is arranged on the bottom of the right of the guide rail (3), the receiving groove (4) is connected to the right lower side of the guide rail (3), the receiving groove (4) and the guide rail (3) are arranged in, the right side of the bottom in the number drawing box (2) is provided with a circular groove frame (9), the circular groove frame (9) is communicated with the outer side of the number drawing box (2), the circular groove frame (9) is positioned right above the guide rail (3), the left wall of the circular groove frame (9) is provided with a first round hole (8), the right wall of the number drawing box (2) is provided with a glass plate (22) and a feeding pipe (23), the feeding pipe (23) is positioned above the glass plate (22), the right side of the feeding pipe (23) is rotatably provided with a shielding plate (25), the left side of the shielding plate (25) is provided with a soft plug (24), the soft plug (24) is matched with the feeding pipe (23), the right side in the number drawing box (2) is provided with a placing box (17), the placing box (17) is communicated with the feeding pipe (23), the top wall of the placing box (17) is provided with a guide hole (18), the bottom wall of the placing box (17, a number ball (19) is placed in the placing box (17), the number ball (19) is a hollow plastic ball, a support rod (14) and a motor (11) are arranged on the left side in the number drawing box (2), the motor (11) is positioned below the support rod (14), a first rotating shaft (10) is arranged on the right side of the motor (11), the first rotating shaft (10) penetrates through a first round hole (8), a rotating disc (6) is arranged at the right end of the first rotating shaft (10), the rotating disc (6) is positioned in a round groove frame (9), a first groove (5) is arranged at the lower part of the rotating disc (6), a connecting device (12) is arranged on the first rotating shaft (10), the connecting device (12) is positioned on the left side of the rotating disc (6), a sliding sleeve (16) is arranged at the right end of the support rod (14), a lifting rod (13) is arranged in the sliding sleeve (16), the bottom end of the lifting rod (13) is connected with, the right part of the curved rod (15) penetrates through the guide hole (18), the lower end of the right part of the curved rod (15) is provided with an insert block (20), fans (21) are arranged on the left side, the right side, the front side and the rear side of the insert block (20), the connecting device (12) comprises a fixing block (121), a swing rod (122), a round block (123), an arc-shaped sliding rail (124), a first triangular plate (125), a first disc (126), a sliding shaft (127), a first circular groove (128), a second disc (129), a second circular groove (1210) and a second triangular plate (1211), the round block (123) is arranged at the bottom end of the lifting rod (13), the sliding shaft (127) is arranged on the right side of the round block (123), the fixing block (121) is arranged on the front side in the number drawing box (2), the swing rod (122) is hinged to the right side of the fixing block (121), the arc-shaped sliding rail (124) is hinged to the right side, the sliding shaft (127) is matched with the arc-shaped sliding rail (124), a first disc (126) and a second disc (129) are eccentrically arranged on the first rotating shaft (10), the second disc (129) is positioned on the left side of the first disc (126), a second circular groove (1210) is arranged on the periphery of the second disc (129) in a contact manner, the second circular groove (1210) is matched with the second disc (129) in a contact manner, a first triangular plate (125) is arranged on the second circular groove (1210), the upper portion of the first triangular plate (125) is hinged to the left side of the rear end of the arc-shaped sliding rail (124), a first circular groove (128) is arranged on the periphery of the first disc (126) in a contact manner, the first circular groove (128) is matched with the first disc (126) in a contact manner, a second triangular plate (1211) is arranged on the first circular groove (128), the upper portion of the second triangular plate (1211) is hinged to the right side of the front end of the arc-shaped sliding rail (124), and the, The automatic marking device comprises a bearing seat (27), a rotating handle (28), a rotating rod (29) and a connecting plate (30), wherein the bearing seat (27) is symmetrically arranged at the front and back of the bottom of a marking box (2), the rotating rod (29) is arranged on the bearing seat (27), the connecting plate (30) is arranged on the rotating rod (29), the right side of the connecting plate (30) is connected with the left side of a guide rail (3), the rotating handle (28) is arranged at the front end of the rotating rod (29), a soft sleeve (26) is arranged at the left part of the rotating handle (28), the soft sleeve (26) is made of rubber, the automatic marking device further comprises a first spring (31), a swinging plate (32), a clamping block (34), a moving groove (35), a second spring (36) and a moving rod (38), a moving groove (35) is arranged at the bottom of the guide rail (3), an insertion hole (37) is arranged at the bottom wall of the moving groove (35), the, the upper portion of the moving rod (38) is provided with a second groove (33), a first spring (31) is arranged in the second groove (33), the tail end of the first spring (31) is connected with a clamping block (34), the clamping block (34) is matched with the insertion hole (37), the right end of the moving rod (38) is rotatably connected with a swinging plate (32), and the bottom of the swinging plate (32) is connected with the top of the left wall of the receiving groove (4).

2. The number drawing answering device for education and teaching according to claim 1, further comprising a cam (39), a second rotating shaft (40), a moving frame (41), a first sliding block (42), a first sliding rail (43) and a knocking block (44), wherein a second round hole (45) is formed in the right wall of the round groove frame (9), the second round hole (45) is located right of the first round hole (8), the second rotating shaft (40) is connected to the right side of the rotary table (6), the second rotating shaft (40) penetrates through the second round hole (45), the cam (39) is arranged at the right end of the second rotating shaft (40), the cam (39) is located below the placing box (17), the first sliding rail (43) is symmetrically arranged on the lower right of the number drawing box (2), the first sliding block (42) is arranged on the first sliding rail (43), the moving frame (41) is connected to the left of the first sliding block (42), and the moving frame (41) is located on the periphery of the cam (39), the moving frame (41) is matched with the cam (39), the top of the moving frame (41) is provided with a knocking block (44), and the knocking block (44) is positioned at the lower right side of the placing box (17).

3. The number drawing answering device for education and teaching according to claim 2, further comprising a second sliding block (46), a drawing handle (47), a placing groove (48) and a second sliding rail (49), wherein the second sliding rail (49) is arranged on the left side of the number drawing box (2) in an up-and-down symmetrical mode, the second sliding rail (49) is located between the supporting rod (14) and the motor (11), the second sliding block (46) is arranged on the second sliding rail (49), the placing groove (48) is connected to the right side of the second sliding block (46), the placing groove (48) is in contact connection with the front wall of the number drawing box (2), and the drawing handle (47) is arranged on the front side of the number drawing box (2).