阅读说明：本技术 一种自动控制出球频率的乒乓球发球机 (Table tennis service robot capable of automatically controlling ball outlet frequency ) 是由 黄晖辉 于 2021-08-27 设计创作，主要内容包括：本发明公开了一种自动控制出球频率的乒乓球发球机,包括基座,基座的顶端后侧设置有支撑杆,支撑杆的顶端设置有发射管,发射管的顶端设置有输送管,输送管的内腔放置有乒乓球,发射管的后端设置有气泵,基座的底端设置有伸缩组件,伸缩组件的底端设置有固定板,基座的顶端设置有频率切换组件,频率切换组件包括有滑动组件、第二电机、第一旋转块、第二旋转块。本发明涉及乒乓球发球机技术领域,解决了发球机在使用的时候不能够对发球的频率进行调节,导致在使用的时候训练效果不明显,以及在使用的时候不方便将其固定在球桌的一端,不方便使用的问题。(The invention discloses a table tennis serving machine capable of automatically controlling the serving frequency, which comprises a base, wherein a supporting rod is arranged on the rear side of the top end of the base, a transmitting tube is arranged at the top end of the supporting rod, a conveying tube is arranged at the top end of the transmitting tube, table tennis is placed in the inner cavity of the conveying tube, an air pump is arranged at the rear end of the transmitting tube, a telescopic assembly is arranged at the bottom end of the base, a fixing plate is arranged at the bottom end of the telescopic assembly, a frequency switching assembly is arranged at the top end of the base, and the frequency switching assembly comprises a sliding assembly, a second motor, a first rotating block and a second rotating block. The invention relates to the technical field of table tennis serving machines, and solves the problems that the serving frequency cannot be adjusted when a serving machine is used, so that the training effect is not obvious when the serving machine is used, and the serving machine is inconvenient to use because the serving machine is not fixed at one end of a table tennis table.)

1. A table tennis service robot capable of automatically controlling the ball output frequency comprises a base and is characterized in that a supporting rod is arranged on the rear side of the top end of the base, a transmitting tube is arranged at the top end of the supporting rod, a conveying tube for placing table tennis balls in an inner cavity is arranged at the top end of the transmitting tube, an air pump is arranged at the rear end of the transmitting tube, and a frequency switching assembly is arranged at the top end of the base;

the frequency switching assembly comprises a sliding assembly, a second motor, a first rotating block, a second rotating block, a stop block and a switching groove;

the sliding assembly sets up the top of base, the second motor is two, two the second motor is fixed mounting respectively in the top left and right sides of sliding assembly, first rotatory piece and the rotatory piece of second is corresponding respectively interference fit the output of second motor, a plurality of the dog sets up along circumference equidistance respectively first rotatory piece and the outer wall circumference of the rotatory piece of second, the switching groove is two, two the switching groove sets up respectively the outer wall left and right sides of launching tube.

2. The table tennis ball serving machine capable of automatically controlling the ball outlet frequency according to claim 1, wherein the sliding assembly comprises a baffle, a first motor, a screw, a sliding block and a moving plate;

the baffle is two, two the baffle fixed mounting respectively is in the top left and right sides of base, first motor fixed mounting is located the left side the left end of baffle, the output of first motor extends to two the inboard of baffle, the left end of screw rod is passed through shaft coupling locking connection and is in the output of first motor, its right-hand member rotate through the bearing and connect and be located the right side the outer wall left side of baffle, the slider spiro union is in the outer wall of screw rod, the movable plate fixed mounting be in the top of slider.

3. The table tennis ball serving machine capable of automatically controlling the ball outlet frequency as claimed in claim 2, further comprising a limiting component, wherein the limiting component comprises a limiting groove and a limiting block;

the limiting groove is formed in the top end of the base, the bottom end of the limiting block is embedded in the inner cavity of the limiting groove in a sliding mode, and the top end of the limiting block is fixedly installed at the bottom end of the sliding block.

4. The table tennis serving machine capable of automatically controlling serving frequency according to claim 1, wherein a clamping assembly is further arranged at the bottom end of the base, and comprises a fixing plate, a telescopic rod and a spring;

the telescopic link is two, two the top of telescopic link respectively fixed mounting in the bottom left and right sides of base, its bottom respectively fixed mounting in the top left and right sides of fixed plate, the spring is two, two the spring cup joints respectively correspondingly the outer wall of telescopic link.

5. The table tennis ball serving machine capable of automatically controlling the ball outlet frequency as claimed in claim 3, wherein the inner cavity of the limiting groove and the outer wall of the limiting block are both in a T shape.

6. The table tennis ball serving machine capable of automatically controlling the ball output frequency as claimed in claim 1, wherein the number of the stoppers circumferentially installed on the outer wall of the first rotating block is six, and the number of the stoppers circumferentially installed on the outer wall of the second rotating block is three.

Technical Field

The invention relates to the technical field of table tennis serving machines, in particular to a table tennis serving machine capable of automatically controlling the serving frequency.

Background

The table tennis service robot is a necessary entertainment and training tool for many ball houses and ball friend families. The automatic table tennis serving machine is suitable for being used in society, schools, families and professional training venues. The table tennis serving machine can serve balls with various properties, can be used for entertainment and body building, is suitable for professional training, and has high cost performance. But prior art's table tennis service robot can not adjust the frequency of service when using, leads to the training effect not obvious when using, and inconvenient in addition fixes its one end at the ball table when using, inconvenient use, to this problem, provides a table tennis service robot of automatic control play ball frequency.

Disclosure of Invention

The embodiment of the invention provides a table tennis service robot capable of automatically controlling the ball output frequency, which is used for solving the problems in the background technology.

In view of the above, the invention provides a table tennis serving machine capable of automatically controlling the ball output frequency, which comprises a base, wherein a support rod is arranged on the rear side of the top end of the base, a transmitting tube is arranged on the top end of the support rod, a conveying tube for placing table tennis balls in an inner cavity is arranged on the top end of the transmitting tube, an air pump is arranged at the rear end of the transmitting tube, and a frequency switching assembly is arranged on the top end of the base;

the frequency switching assembly comprises a sliding assembly, a second motor, a first rotating block, a second rotating block, a stop block and a switching groove;

the sliding assembly sets up the top of base, the second motor is two, two the second motor is fixed mounting respectively in the top left and right sides of sliding assembly, first rotatory piece and the rotatory piece of second is corresponding respectively interference fit the output of second motor, a plurality of the dog sets up along circumference equidistance respectively first rotatory piece and the outer wall circumference of the rotatory piece of second, the switching groove is two, two the switching groove sets up respectively the outer wall left and right sides of launching tube.

Preferably, the sliding assembly comprises a baffle plate, a first motor, a screw rod, a sliding block and a moving plate; the baffle is two, two the baffle fixed mounting respectively is in the top left and right sides of base, first motor fixed mounting is located the left side the left end of baffle, the output of first motor extends to two the inboard of baffle, the left end of screw rod is passed through shaft coupling locking connection and is in the output of first motor, its right-hand member rotate through the bearing and connect and be located the right side the outer wall left side of baffle, the slider spiro union is in the outer wall of screw rod, the movable plate fixed mounting be in the top of slider.

Preferably, the device further comprises a limiting component, wherein the limiting component comprises a limiting groove and a limiting block; the limiting groove is formed in the top end of the base, the bottom end of the limiting block is embedded in the inner cavity of the limiting groove in a sliding mode, and the top end of the limiting block is fixedly installed at the bottom end of the sliding block.

Preferably, the bottom end of the base is further provided with a clamping assembly, and the clamping assembly comprises a fixing plate, a telescopic rod and a spring; the telescopic link is two, two the top of telescopic link respectively fixed mounting in the bottom left and right sides of base, its bottom respectively fixed mounting in the top left and right sides of fixed plate, the spring is two, two the spring cup joints respectively correspondingly the outer wall of telescopic link.

Preferably, the inner cavity of the limiting groove and the outer wall of the limiting block are both T-shaped.

Preferably, the number of the stoppers circumferentially mounted on the outer wall of the first rotating block is six, and the number of the stoppers circumferentially mounted on the outer wall of the second rotating block is three.

According to the technical scheme, the embodiment of the invention has the following advantages:

firstly, when the device is installed at one end of the table, the inclined plane at the top end of the fixed plate extrudes the edge of the table, the fixed plate can slide downwards under the action of the inclined plane, so that the telescopic rod extends, the spring elastically deforms, corresponding contraction force is generated, the fixed plate and the base are stably clamped at the inner side of one end of the table, and the device can be stably fixed at one end of the table under the action of the elastic force of the spring, so that the table is convenient to use.

And secondly, the screw rod is driven to rotate through the motor, under the action of the thread rotating force of the outer wall of the screw rod, when the screw rod is rotated, the sliding block can drive the limiting block to slide in the inner cavity of the limiting groove, and the sliding block can be prevented from rotating along with the screw rod under the interaction between the limiting groove and the limiting block. When the sliding block slides to the right side, the moving plate can drive the second motor on the left side, the first rotating block and the six stop blocks on the first rotating block to enter the inner cavity of the launching tube through the switching grooves, so that launching of table tennis launched from the air pump is stopped, and at the moment, when the second motor on the left side is started to drive the first rotating block to rotate, the table tennis launched from the air pump can be launched; when the sliding block slides to the left side, the movable plate can drive the second motor on the right side, the second rotating block and the three stop blocks on the second rotating block to enter the inner cavity of the launching tube through the switching grooves, so that launching of table tennis launched from the air pump is stopped, the second motor on the right side is started to drive the second rotating block to rotate, and the table tennis launched from the air pump can be launched. The rotating speeds of the two second motors are the same, and because the number of the stop blocks is different, the more the number of the table tennis balls which are launched out is, the more the number of the stop blocks is, in unit time, when the stop blocks with different numbers are deep into the inner cavity of the launching tube, the purpose of changing the launching frequency is achieved, and training is convenient.

Drawings

FIG. 1 is a schematic view of a southwest axonometric spatial structure of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a front view of the fixation plate of the present invention;

FIG. 4 is a schematic structural diagram of a first rotating block according to the present invention;

FIG. 5 is a schematic view of a second rotating block according to the present invention;

wherein the reference numerals are:

1. a base; 2. a support bar; 3. a launch tube; 4. a delivery pipe; 5. an air pump; 6. a fixing plate; 7. a telescopic rod; 8. a spring; 9. a baffle plate; 10. a first motor; 11. a screw; 12. a slider; 13. moving the plate; 14. a second motor; 15. a first rotating block; 16. a stopper; 17. switching a slot; 18. a table tennis ball; 19. a limiting groove; 20. a limiting block; 21. a second rotating block.

Detailed Description

In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless explicitly stated or limited otherwise; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

For easy understanding, referring to fig. 1 to 5, an embodiment of a table tennis serving machine capable of automatically controlling a ball output frequency according to the present invention includes a base 1, a support rod 2 is disposed on a rear side of a top end of the base 1, a launch tube 3 is disposed on a top end of the support rod 2, a delivery tube 4 having an inner cavity for placing a table tennis ball is disposed on a top end of the launch tube 3, an air pump 5 is disposed on a rear end of the launch tube 3, and a frequency switching assembly is disposed on a top end of the base 1.

The frequency switching assembly comprises a sliding assembly, a second motor 14, a first rotating block 15, a second rotating block 21, a stop 16 and a switching groove 17, wherein the sliding assembly is arranged at the top end of the base 1. The number of the second motors 14 is two, the two second motors 14 are respectively and fixedly installed on the left side and the right side of the top end of the sliding assembly, the first rotating block 15 and the second rotating block 21 are respectively in interference fit with the output end of the corresponding second motor 14, and the plurality of stop blocks 16 are respectively arranged on the circumferences of the outer walls of the first rotating block 15 and the second rotating block 21 at equal intervals along the circumferential direction; the number of the switching grooves 17 is two, the two switching grooves 17 are respectively arranged on the left side and the right side of the outer wall of the transmitting tube 3, the two switching grooves 17 are communicated with each other, and the switching grooves 17 can pass through the first rotating block 15, the second rotating block 21 and the stop block 16. The spacing between adjacent stops 16 on the first and second rotary blocks 15, 21 can each accommodate a table tennis ball, allowing the table tennis ball to be launched through the launch tube 3.

Preferably, as shown in fig. 1 and 2, the sliding assembly includes a baffle 9, a first motor 10, a screw 11, a slider 12, and a moving plate 13. Baffle 9 is two, two baffle 9 are fixed mounting respectively in the top left and right sides of base 1, first motor 10 fixed mounting is at the left end that is located left side baffle 9, the output of first motor 10 extends to the inboard of two baffle 9, the left end of screw rod 11 passes through shaft coupling locking connection at the output of first motor 10, its right-hand member passes through the bearing and rotates the connection in the outer wall left side that is located right side baffle 9, slider 12 spiro union is at the outer wall of screw rod 11, movable plate 13 fixed mounting is on the top of slider 12.

As a preferable scheme, as shown in fig. 2, the device further includes a limiting component, and the limiting component includes a limiting groove 19 and a limiting block 20. The limiting groove 19 is formed in the top end of the base 1, and the bottom end of the limiting block 20 is slidably embedded in the inner cavity of the limiting groove 19, and the top end of the limiting groove is fixedly mounted at the bottom end of the sliding block 12.

The clamping assembly is arranged, so that the device can be conveniently and stably fixed at one end of the table tennis table, and the device is convenient to use; through the arrangement of the sliding assembly, the movable plate 13 and the limiting assembly can slide back and forth. The conveying pipe 4 is communicated with the launching tube 3, so that the table tennis balls in the conveying pipe 4 fall into the launching tube 3, and the table tennis balls are ejected to the vicinity of the switching groove 17 under the impact of the air pump 5.

Specifically, at first, drive screw rod 11 through first motor 10 and rotate, drive slider 12 and slide under the effect of screw rod 11 outer wall screw thread rotating force, slider 12 drives movable plate 13 and stopper 20 simultaneously and slides, and stopper 20 slides at the inner chamber of spacing groove 19, under the interact between spacing groove 19 and stopper 20, can avoid slider 12 to follow screw rod 11 and rotate, has improved sliding assembly's stability.

On the other hand, when the sliding block 12 slides to the right, the moving plate 13 can drive the second motor 14 on the left side, the first rotating block 15 and the stopper 16 on the first rotating block 15 to enter the inner cavity of the launching tube 3 through the switching slot 17, so as to block the launching of the table tennis 18 launched from the air pump 5, and at the moment, the second motor 14 on the left side is started to drive the first rotating block 15 to rotate, so that the table tennis 18 launched from the air pump 5 can be launched out; similarly, when the sliding block 12 slides to the left, the moving plate 13 drives the second motor 14 on the right, the second rotating block 21 and the stopper 16 on the second rotating block 21 to enter the inner cavity of the launching tube 3 through the switching slot 17, so as to block the launching of the table tennis 18 launched from the air pump 5, and at this time, the second motor 14 on the right is started to drive the second rotating block 21 to rotate, so as to launch the table tennis 18 launched from the air pump 5. The two second motors 14 have the same rotating speed, and because the number of the stoppers 16 on the first rotating block 15 is different from that of the stoppers 16 on the second rotating block 21, the more the stoppers 16 emit more table tennis balls 18 in unit time, and when the stoppers 16 with different numbers penetrate into the inner cavity of the launching tube 3, the purpose of changing the launching frequency is achieved, thereby facilitating training.

Preferably, as shown in fig. 3, the bottom end of the base 1 is further provided with a clamping assembly, and the clamping assembly comprises a fixing plate 6, a telescopic rod 7 and a spring 8. The telescopic link 7 is two, and the top of two telescopic links 7 is fixed mounting respectively in the bottom left and right sides of base 1, its bottom fixed mounting respectively in the top left and right sides of fixed plate 6, and spring 8 is two, and two springs 8 cup joint the outer wall at corresponding telescopic link 7 respectively.

It should be noted that, when the device is installed at one end of the table, the top inclined surface of the fixing plate 6 is made to press the edge of the table, and under the action of the inclined surface, the fixing plate 6 can slide downwards, so that the telescopic rod 7 is extended, and the spring 8 is elastically deformed, so as to generate a corresponding contraction force, and the fixing plate 6 and the base 1 are stably clamped at the inner side of one end of the table, and under the action of the elastic force of the spring 8, the device can be stably fixed at one end of the table, which is convenient for use.

As preferred scheme, further, the inner chamber of spacing groove 19 and the outer wall of spacing block 20 all are "T" font, can make spacing block 20 embed at the inner chamber of spacing groove 19 steadily, avoid spacing block 20 to break away from the inner chamber of spacing groove 19 to improve spacing subassembly's stability.

As a preferable scheme, as shown in fig. 4 and 5, the number of the stoppers 16 mounted on the outer wall of the first rotating block 15 is six, the number of the stoppers 16 mounted on the outer wall of the second rotating block 21 is three, the more the stoppers 16 are used in a unit time, the more the number of the table tennis balls 18 to be launched is, and when the stoppers 16 with different numbers are inserted into the inner cavity of the launching tube 3, the purpose of changing the launching frequency is achieved, thereby facilitating the training.

The detailed connection means is a known technology in the field, and the following main introduction working principle and process specifically work as follows:

when installing the device in table one end, make 6 top inclined planes of fixed plate extrude table edge, under the effect on inclined plane, can make 6 lapse of fixed plate to make telescopic link 7 extension, and make spring 8 take place elastic deformation, thereby produce corresponding contractile force, and make fixed plate 6 and base 1 press from both sides the inboard at table one end steadily, under the elastic force effect of spring 8, can fix the device one end at the table steadily, facilitate the use.

Firstly, the first motor 10 rotates positively to drive the screw rod 11 to rotate, and under the action of the rotating force of the thread on the outer wall of the screw rod 11, when the screw rod 11 rotates, the sliding block 12 can drive the limiting block 20 to slide in the inner cavity of the limiting groove 19, and simultaneously the sliding block 12 also drives the moving plate 13 to slide, so that the sliding block 12 can be prevented from rotating along with the screw rod 11 under the interaction between the limiting groove 19 and the limiting block 20.

Subsequently, when the sliding block 12 slides to the right, the moving plate 13 drives the second motor 14 on the left side, the first rotating block 15 and the six stoppers 16 on the first rotating block 15 to enter the inner cavity of the launching tube 3 through the switching slot 17, so as to block the launching of the table tennis 18 launched from the air pump 5, and at the moment, when the second motor 14 on the left side is started to drive the first rotating block 15 to rotate, the table tennis 18 launched from the air pump 5 can be launched.

Similarly, when the ball-serving frequency needs to be changed, the first motor 10 is reversed and the slider 12 is slid to the left. When the sliding block 12 slides to the left, the moving plate 13 can drive the second motor 14 on the right, the second rotating block 21 and the three stoppers 16 on the second rotating block 21 to enter the inner cavity of the launching tube 3 through the switching slot 17, so as to block the launching of the table tennis 18 launched from the air pump 5, and at the moment, the second motor 14 on the right is started to drive the second rotating block 21 to rotate, so as to launch the table tennis 18 launched from the air pump 5. The two second motors 14 on the left side and the right side have the same rotating speed, and because the quantity of the stop blocks 16 on the first rotating block 15 is different from that of the stop blocks 16 on the second rotating block 21, the quantity of the table tennis balls 18 which are more and more launched in unit time is larger, and when the stop blocks 16 with different quantities are deeply inserted into the inner cavity of the launching tube 3, the purpose of changing the launching frequency is achieved, and the training is convenient.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.