CN108126326A - A kind of ball picking up device under ping-pong table - Google Patents

Abstract

The invention discloses a ball picking device under a table tennis table in the field of table tennis sports equipment. A front gear is fixedly sleeved on the front and rear horizontal front screw rods, and a rear gear is fixedly sleeved on the rear screw rod. There is a reverse gear in between, the rear gear meshes with the reverse gear, and the motor gear meshes with the reverse gear and the front gear at the same time; the middle of the front and rear screw rods are respectively threaded to connect the front and rear slide plates arranged horizontally on the left and right, and the front 1. The left and right ends of the rear slide are respectively connected with a front and rear horizontally arranged slide rail, and each push plate is connected with the front slide or rear slide directly above the vertical push plate telescopic rod and push plate guide rod; each slide rail There is a front and rear horizontally arranged baffles directly below each, and vertical baffle telescopic rods and baffle guide rods are connected between the baffles and slide rails on the same side; the front and rear horizontally arranged front and rear ends are respectively connected to a ball basket; The present invention can pick up a plurality of table tennis balls at the lower end of the table tennis table and transfer them to one side of the server.

Description

Ball picking device under table tennis table

technical field

The invention belongs to the field of table tennis equipment, in particular to a device capable of picking up table tennis balls dropped under a table tennis table.

Background technique

In the process of table tennis, picking up the ball is an inevitable action. The table tennis balls outside the table tennis table can be picked up directly by people, while the table tennis balls that fall under the table tennis table are difficult to pick up and need to be drilled under the table tennis table. , There is always the danger of hitting the head on the table tennis table. Therefore, if a ball picking device can be installed under the table tennis table, the device can automatically transfer the table tennis balls under the table to both sides of the player, which can solve this problem. At present, Chinese patent application number is 201310640570.2 in the document that discloses a kind of table tennis ball picking device, and this device is pressed to table tennis by the ball net on the ball cover, makes table tennis enter the ball cover through the gap of ball net, then by pulling The pull rope is used to pour out the table tennis balls. Although the device can quickly and effectively pick up the table tennis balls falling outside the table tennis table, and can easily pour out the table tennis balls, the device has a problem with picking up the table tennis balls at the lower end of the table tennis table. not well resolved. Another example is that the Chinese patent application number is that 201110344899.5 provides a kind of landing table tennis automatic recovery ball mechanism and automatic circulation table tennis training device, the device passes through the table tennis leakage hole on the floor and the gradient of the automatic ball collection surface, the ground The table tennis balls on the table are collected at the ball collecting position, and there is an automatic ball picking machine that picks up the recovered table tennis balls and transports them to the automatic ball machine, and then the automatic ball machine sends the table tennis balls to the server. The device can not only pick up the table tennis balls at the lower end of the table tennis table, but also the table tennis balls around the table tennis table, but because the device needs to modify the indoor floor, it is not suitable for the table tennis halls that have been built, and This device can't solve the distribution problem of table tennis when a room has a plurality of table tennis tables.

Contents of the invention

The purpose of this invention is to design a kind of ball pick-up device that can automatically pick up the table tennis ball at the lower end of the table tennis table, and automatically transfer the table tennis ball to the side of the server.

The technical solution adopted by the ball picking device under the table tennis table proposed by the present invention is: a gear box is fixed in the middle of the lower surface of the table tennis table. There is a motor gear in the shaft sleeve, a front gear is fixedly sleeved on the front and rear horizontal front screw rods, a rear gear is fixedly sleeved on the front and rear horizontal rear screw rods, and a reverse gear is arranged between the rear gear and the motor gear. The gears are meshed, and the motor gear is meshed with the reverse gear and the front gear at the same time; the middle of the front screw rod is threaded to connect the left and right horizontally arranged front skateboards, and the middle of the rear screw rod is threaded to connect the left and right horizontally arranged rear skateboards. The left and right ends of the rear skateboard are respectively connected to a front and rear horizontally arranged slide rail; directly below the front skateboard and the rear skateboard are respectively provided with a left and right horizontal push plate, and each push plate is directly above the front skateboard or the rear skateboard. The up and down vertical push plate telescopic rods and push plate guide rods are connected between them; there is a front and rear horizontally arranged baffles directly under each slide rail, and the up and down vertical baffles are connected between the baffles on the same side and the slide rails. Rod and baffle guide rod; a slideway arranged horizontally before and after is arranged under a slide rail, and a table tennis entrance channel is arranged in the middle of the inner side of the slideway, and the vertical guide plate is connected up and down below the entrance channel, and the two push plates are directed towards After the opponent moves, it can contact the guide plate to form a square area, and the front and rear ends of the slideway are respectively connected with a ball basket.

Furthermore, the slideway is a U-shaped slideway surrounded by the conveying bottom plate, the inner plate and the outer plate, with the opening facing upwards. The bottom is two horizontal conveying bottom plates, and the two conveying bottom plates are hinged with left and right horizontal pivot pins. , the outer walls of the two conveying bottom plates are jointly connected with an outer plate, and the inner walls of each conveying floor are connected with an inner plate, and a fence is connected between the two inner plates, and the upper part of the fence is a U with an opening facing upwards. U-shaped structure, the U-shaped structure is the table tennis entrance passage, the two inner panels are connected to the two side walls of the U-shaped structure, and the U-shaped structure is connected to the guide plate.

Furthermore, the side wall of the ball basket has a rectangular groove, and the conveying bottom plate extends in the rectangular groove. Below the conveying bottom plate stretching in the rectangular groove, there are armatures, springs and electromagnets from top to bottom, and the armature is fixed on the conveyor. The lower bottom surface of the bottom plate, the upper end of the spring is connected to the armature, the upper end of the spring and the electromagnet are all fixedly connected to the bottom of the rectangular groove. In the initial state, the conveying bottom plate is inclined to the pivot pin position. When the electromagnet is connected, the conveying bottom plate is inclined to the direction of the ball basket.

The beneficial effects of the present invention are:

1. When there are table tennis balls at the lower end of the table tennis table, the present invention can pick up a plurality of table tennis balls at the lower end of the table tennis table in a short period of time, and deliver the plurality of table tennis balls to the side of the server, effectively avoiding the Need personnel to get under the table tennis table to pick up the inconvenience that table tennis brings.

2. The device of the present invention can be installed on all table tennis tables with similar structures without changing the original facilities in the room. It has stronger practicability, and the device has a simple structure and is easy to operate.

Description of drawings

Fig. 1 is a schematic diagram of the assembly structure of the ball picking device under a table tennis table of the present invention in the initial state and the table tennis table;

Fig. 2 is an enlarged schematic diagram of the installation structure of the screw rod and the gear box in Fig. 1;

Fig. 3 is a partial structural schematic diagram of the ball picking device of the present invention in Fig. 1 when it is in working condition;

Fig. 4 is the assembly structure drawing of rear slide plate, push pedal, push pedal telescopic rod and guide rod in Fig. 3;

Fig. 5 is the structural exploded view of slideway and ball basket among Fig. 1;

Fig. 6 is an exploded view of the installation relationship between the conveying base plate, the ball basket and the electromagnet in Fig. 5;

Fig. 7 is an enlarged schematic diagram of the installation structure of the conveying bottom plate and the shaft pin in Fig. 5;

Fig. 8 is a state diagram after the push plate and the baffle plate in the ball picking device of the present invention descend;

Fig. 9 is a state diagram after the pushing plate in Fig. 8 pushes the ball in the middle;

Fig. 10 is a state diagram of sending table tennis balls into the chute after the push plate in Fig. 8 rises.

In the figure: 1. table tennis table; 2. slideway; 2a. outer plate; 2b. fence; 2c. basket; ;3. Rear screw rod; 3a. Rear gear; 4. Baffle telescopic rod; 5. Rear slide plate; 6. Push plate; 7. Electromagnet; 8. Gear box; 8a. Motor; .Baffle; 10. Front screw; 10a. Front gear; 11. Slide rail; 12. Bearing seat; 13. Front slide; 14. Bearing; Guide rod; 18. push plate guide rod.

Detailed ways

For ease of understanding, first stipulate the spatial orientation of the present invention: referring to Fig. 1, it is stipulated that the longitudinal direction of the table tennis table 1 in Fig. The desktop position is "up", and the ground is "down".

Referring to Fig. 1, the present invention is integrally installed under the desktop of table tennis table 1, and a gear box 8 is fixed in the middle of the lower surface of the table tennis table 1, and two front and rear horizontal screw rods are stretched out from the gear box 8, respectively It is a front screw mandrel 10 extending forward and a rear screw mandrel 3 extending backward. The two screw mandrels are mutually horizontal and at the same height, and are arranged axially symmetrically with respect to the center of the gear box 8 .

Referring to Fig. 2, the front screw mandrel 10 and the rear screw mandrel 3 are installed on the casing of the gear box 8 through a bearing 14, so that the front screw mandrel 10 and the rear screw mandrel 3 can rotate. The front screw mandrel 10 and the rear screw mandrel 3 all stretch into the inside of the gear box 8, and the inside of the gear box 8 is provided with a horizontal motor 8a, and the output shaft of the motor 8a is coaxially sleeved with a motor gear 8b. This end of front screw mandrel 10 and rear screw mandrel 3 is respectively fixedly covered with a gear, which is the front gear 10a on the front screw mandrel 10, the rear gear 3a on the rear screw mandrel 3, the rear gear 3a and the motor gear 8b. There is also a reverse gear 8b between them. The reverse gear 8b is installed on the box body of the gearbox 8 through a shaft and a bearing. The rear gear 3a is meshed with the reverse gear 8b, and the motor gear 8b is simultaneously connected with the reverse gear 8b and the front gear. 10a is meshed, that is, the front gear 10a is directly meshed with the motor gear 8b, and the rear gear 3a is indirectly meshed with the motor gear 8b through the reverse gear 8b. The screw mandrel 10 and the rear screw mandrel 3 have opposite and equal rotational speeds.

Referring to Fig. 1 and Fig. 3, the middle of the front screw mandrel 10 passes through the front slide plate 13 arranged horizontally on the left and right, and is threadedly connected with the front slide plate 13, the front end of the front screw mandrel 10 is installed on a bearing seat 12 on the front side, and The middle of the screw rod 3 passes through the rear slide plate 5 arranged horizontally on the left and right, and is threadedly connected with the rear slide plate 5. The rear end of the rear screw rod 3 is installed on another bearing seat 12 on the rear side, and the two bearing seats 12 are fixedly connected respectively. On the lower surface of the table tennis table 1.

The left and right ends of the front slide plate 13 and the rear slide plate 5 are respectively connected to a slide rail 11 which is horizontally arranged front and back, and the front slide plate 13 and the rear slide plate 5 can slide forward and backward along the slide rail 11 . Two slide rails 11 are all fixedly connected under the desktop of table tennis table 1. Like this, two slide rails 11 and front slide plate 13, rear slide plate 5 encircle a square frame structure parallel with desktop and be positioned at desktop directly below.

Both slide rails 11 are U-shaped slide rails, and the U-shaped openings point to the inside of the table tennis table 1 . The rotation of front screw mandrel 10 can drive front slide plate 13 to move back and forth on slide rail 11, and the rotation of back screw mandrel 3 can drive rear slide plate 5 to move back and forth in slide rail 11.

Referring to Fig. 1, Fig. 3 and Fig. 4, a push plate 6 arranged horizontally on the left and right is provided directly below the front slide plate 13 and the rear slide plate 5, and each push plate 6 is directly above the front slide plate 13 or the rear slide plate 5. Between each push pedal 6 and the slide plate directly above it, a push pedal telescopic rod 15 and a push pedal guide rod 18 Arranged one left and one right, the middle part of the push pedal telescopic rod 15 can be elongated and shortened by the rotation of the motor inside the telescopic rod, thereby driving the push pedal 6 to move vertically up and down, and the push pedal 6 is moved by the push pedal guide rod 18 guide.

Referring to Fig. 4, push pedal 6 is L-shaped, and the lower end of push pedal telescoping rod 15 and push pedal guide rod 18 is fixedly installed on the vertical part of L-shaped push pedal 6 by screws, and the upper surface of the horizontal part of push pedal 6 is A special bevel that slopes left and right.

Referring to Fig. 1 and Fig. 3, each slide rail 11 has a front and back horizontally arranged baffle plate 9, the left baffle plate 9 is located directly under the left slide rail 11, and the right baffle plate 9 is located on the right side. side directly below the slide rail 11. Two baffle plates 9 and two push plates 6 surround a square frame structure parallel to the desktop. Between the baffle plate 9 and the slide rail 11 on the same side on the left and right, the up and down vertical baffle telescopic rod 4 and the baffle guide rod 17 are connected, and the baffle telescopic rod 4 and the baffle guide rod 17 on the left and right side are arranged one after the other. The middle part of the baffle telescopic rod 4 can be elongated and shortened by the rotation of the internal motor of the baffle telescopic rod, thereby driving the baffle 9 to move up and down. The baffle guide rod 17 does not provide the power of elongation and shortening, but only serves as a guide.

Like this, by two slide rails 11 of front and back level above, a front slide plate 13 and rear slide plate 5 of a left and right level, two front and back horizontal baffle plates 9 of the bottom, two left and right horizontal push plates 6 and a vertical baffle plate Telescopic rod 4, baffle plate guide rod 17, push pedal telescopic rod 15, push pedal guide rod 18 surround a rectangular parallelepiped frame structure.

Referring to Fig. 1, Fig. 5, Fig. 6 and Fig. 7, one of the two slide rails 11 is provided below one of the slide rails 11 with a front and back horizontally arranged slideway 2, and the front and rear ends of the slideway 2 are fixedly connected to the table tennis table 1 on the table legs or fixed to the bottom of the table. Respectively connect a ball basket 2c at the front and rear ends of the slideway 2. The slideway 2 is symmetrical front and back as a whole, and is a U-shaped slideway with an opening surrounded by the conveying bottom plate 2d, the inner side plate 2e and the outer side plate 2a. The bottom of the slideway 2 is two front and rear horizontal conveying bottom plates 2d, the two conveying bottom plates 2d are connected by left and right horizontal pivot pins 16, and the pivot pins 16 pass through the corresponding pin holes provided on the two conveying bottom plates 2d at the same time , so that the two conveying bottom plates 2d are hinged together, and each conveying bottom plate 2d can rotate around the center of the pivot pin 16, using a hinge connection. An outer plate 2a is connected to the outer walls of the two conveying bottom plates 2d, and the outer plates 2a are horizontally arranged front and rear and perpendicular to the conveying bottom plate 2d. An inner board 2e is connected to the inner wall of each conveying bottom plate 2d, and the two inner boards 2e are arranged horizontally front and back and perpendicular to the conveying bottom plate 2d.

A fence 2b is connected between the two inner boards 2e, and the fence 2b is located in the middle of the inside of the entire slideway 2. The fence 2b is divided into an upper section and a lower section. The upper section is a U-shaped structure with an opening facing upwards and communicates with the inside and outside. The U-shaped structure is the entrance channel for table tennis balls to enter the slideway 2. The two inner panels 2e are respectively connected to the two side walls of the U-shaped structure of the upper section. The lower section is a vertical guide plate 2h. The bottom of the guide plate 2h is flush with the bottoms of the two push plates 6. When the two push plates 6 move to each other, the two push plates 6 can be in contact with the guide plates 2h to enclose into a square area. The upper surfaces of the horizontal parts of the two push plates 6 are inclined from top to bottom toward the direction of the guide plate 2 h, so that the table tennis balls on the push plates 6 can roll to this side of the fence 2b under the action of gravity, and when the two push plates When the plate 6 is positioned under the upper U-shaped channel of the fence 2b, the table tennis ball will not roll down. Only when the two push plates 6 rise to the position of the U-shaped channel on the upper section of the fence 2b, can the table tennis ball roll to In slide 2.

The ball basket 2c is fixedly connected to the inner side plate 2e and the outer side plate 2a of the slideway 2, the side wall of the ball basket 2c has a rectangular groove, and the conveying bottom plate 2d stretches in the rectangular groove, and is stretched under the conveying bottom plate 2d in the rectangular groove From top to bottom are the armature 2f, the spring 2g and the electromagnet 7, the armature 2f is fixedly arranged on the lower bottom surface of the conveying bottom plate 2d, the upper end of the spring 2g is connected to the armature 2f, the upper end of the spring 2g is fixedly connected to the bottom of the rectangular groove, and the electromagnet 7 is also fixed Install the bottom of the rectangular slot, the electromagnet 7 is located directly below the armature 2f. In the initial state, the conveying bottom plate 2d is inclined to the middle position of the slideway 2, that is, to the position of the shaft pin 16. When the electromagnet 7 is turned on, the downward attraction force of the electromagnet 7 to the armature 2f on the lower end surface of the conveying bottom plate 2d, Overcoming the elastic force of the spring 2g, the conveying bottom plate 2d is inclined toward the basket 2c, so that the table tennis balls enter the basket 2c.

Referring to Fig. 1-7 and Fig. 8-10, when the present invention is in the initial state, referring to Fig. 1, all components are installed on the lower end of the table top of the table tennis table 1, and the push plate 6 and the baffle plate 9 are all located at the top position, so It will not affect the normal table tennis movement. When it is necessary to pick up the table tennis ball at the lower end of the table tennis table 1, referring to Fig. 8, the baffle plate telescopic rod 4 and the push plate telescopic rod 15 work, respectively drive the push plate 6 and the baffle plate 9 to move downwards simultaneously, reaching a height less than Stop motion when ping pong ball radius. Referring to Fig. 9, at this moment, the baffle plate 9 is stationary, and the motor 8a works to drive the front screw mandrel 10 and the rear screw mandrel 3 to rotate, thereby driving the front slide plate 13, the rear slide plate 5 and the push plate 6 to move toward the center of the table tennis table 1, During this process, the two push plates 6 push the table tennis ball on the ground at the lower end of the table tennis table 1 to the middle of the table tennis table 1, and finally the table tennis ball is pushed onto the two push plates 6 at the middle position of the table tennis table 1, And because of the special inclination of push pedal 6, the table tennis ball can automatically move to the lower end of push pedal 6 under the effect of self gravity, and baffle plate 9 can prevent table tennis from rolling away from push pedal 6 in the process.

Referring to Fig. 10, when the motor 8a moved the two push plates 6 to the middle of the table tennis table 1, after the table tennis ball was pushed onto the push plates 6, the motor 8a stopped rotating, and the telescopic rod was installed on the front slide plate 13 and the rear slide plate 5 15 drives push plate 6 to move upwards, and at this moment, the guide plate 2 h on the slideway 2 can prevent the table tennis from rolling down in the process of rising. When push plate 6 moved upwards and reached the upper end of guide plate 2 h, table tennis rolled into slideway 2 from U-shaped passage, and now telescopic rod 15 stopped moving, and table tennis rolled into slideway 2 from push plate 6.

The delivery bottom plate 2d of the slideway 2 is initially inclined to the middle of the slideway 2, so the table tennis balls will not roll to the front and rear ends of the slideway 2, and then the electromagnet 7 at one end of the table tennis ball is required to be connected, and the electromagnet 7 attracts the delivery bottom plate 2d The armature 2f at the lower end makes the delivery base plate 2d lower towards the end near the ball basket 2c, and the table tennis balls in the slideway 2 roll into the required side ball basket 2c.

Claims (5)

1. A ball picking device under a table tennis table, characterized in that: a gear box (8) is fixed in the middle of the lower surface of the table tennis table, and the inside of the gear box (8) is equipped with a front and back horizontal motor (8a) , the motor gear (8b) is coaxially sleeved on the output shaft of the motor (8a), the front gear (10a) is fixedly sleeved on the front and rear horizontal front screw rods (10), and the front gear (10a) is fixedly sleeved on the front and rear horizontal rear screw rods (3). The rear gear (3a), the reverse gear (8b) is arranged between the rear gear (3a) and the motor gear (8b), the rear gear (3a) meshes with the reverse gear (8b), and the motor gear (8b) simultaneously engages with the The reverse gear (8b) meshes with the front gear (10a); the middle of the front screw rod (10) is threaded to connect the left and right horizontally arranged front slide plates (13), and the middle of the rear screw rod (3) is screwed to the left and right horizontally arranged The rear slide plate (5), the left and right ends of the front slide plate (13) and the rear slide plate (5) are respectively connected to a slide rail (11) which is horizontally arranged front and back; There is a horizontally arranged push plate (6) at the bottom, each push plate (6) and the front slide plate (13) or the rear slide plate (5) directly above it are connected with vertical push plate telescopic rods (15) and push plate guide rods (18); directly below each slide rail (11) there is a front and back horizontally arranged baffle plate (9), and the upper and lower sides are connected between the baffle plate (9) and the slide rail (11) on the same side Vertical baffle expansion rod (40 and baffle guide rod (17); a slideway (2) arranged horizontally before and after a slide rail (11) is provided under a slide rail (11), and the inner side of the slideway (2) is provided in the middle The table tennis entrance passage, the upper and lower vertical guide plates (2h) are connected to the bottom of the entrance passage, and the two push plates (6) can be in contact with the guide plates (2h) to form a square area after moving toward each other. Each end is connected to a basket (2c). 2. A ball picking device under a table tennis table according to claim 1, characterized in that: the slideway 2 is an opening surrounded by a conveying bottom plate (2d), an inner plate (2e) and an outer plate (2a) Upward U-shaped slideway, the bottom is two front and rear horizontal conveying bottom plates (2d), the two conveying bottom plates 2d are hinged with left and right horizontal pivot pins (16), and the outer walls of the two conveying bottom plates (2d) Jointly connect one outer board (2a), one inner board (2e) is connected to the inner wall of each conveying bottom board (2d), and one fence (2b) is connected between the two inner boards (2e), and the fence (2b ) is a U-shaped structure with an opening facing upwards, the U-shaped structure is the entry channel for the table tennis ball, the two inner panels (2e) are connected to the two side walls of the U-shaped structure, and the U-shaped structure is connected to the guide plate ( 2h). 3. A ball picking device under a table tennis table according to claim 2, characterized in that: the side wall of the ball basket (2c) is provided with a rectangular groove, and the conveying bottom plate (2d) extends in the rectangular groove. Below the conveying bottom plate (2d) in the rectangular groove are armatures (2f), springs (2g) and electromagnets (7) from top to bottom. The armature 2f is fixed on the lower bottom surface of the conveying bottom plate 2d, and the upper end of the spring 2g is connected to The armature 2f, the upper end of the spring 2g and the electromagnet (7) are all fixedly connected to the bottom of the rectangular groove. In the initial state, the conveying bottom plate (2d) is inclined to the position of the shaft pin (16). When the electromagnet (7) is turned on, the conveying bottom plate ( 2d) Tilt towards the basket (2c). 4. A ball picking device under a table tennis table according to claim 1, characterized in that: the push plate (6) is L-shaped, the lower end of the push plate telescopic rod (15) and the push plate guide rod (18) Both are fixedly connected to the vertical part of the push plate (6), and the upper surface of the horizontal part of the push plate (6) is an inclined plane inclined from top to bottom toward the direction of the guide plate (2h). 5. A ball picking device under a table tennis table according to claim 1, characterized in that: the front end of the front screw rod (10) is connected to a bearing seat (12) on the front side, and the front end of the rear screw rod (3) The rear end is connected to another bearing seat (12) on the rear side, and the two bearing seats 12 are respectively fixedly connected to the lower surface of the table tennis table.