Ball-throwing interactive device

Abstract

The application provides a ball throwing interactive device, and relates to the technical field of interactive devices.The ball throwing interactive device comprises a liftable placing seat, a ball throwing mechanism arranged on the placing seat, a driving mechanism, a lifting mechanism, and a ball channel.The ball throwing mechanism comprises a ball throwing channel arranged on the placing seat and a ball pushing mechanism arranged in the ball throwing channel.The driving mechanism is connected with the ball pushing mechanism through a transmission mechanism.The ball channel can accommodate a ball.The ball pushing mechanism can push the ball out of the ball throwing channel under the driving of the driving mechanism.The lifting mechanism is connected with the placing seat and is used for adjusting the height of the placing seat.The height of the ball throwing mechanism can meet the requirements of the user when the ball throwing interactive device is used.The ball pushing mechanism is driven by the driving mechanism to push the ball out of the ball throwing channel, so that people can entertain or exercise by catching the ball.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of interactive devices, in particular to a ball throwing interactive device. BACKGROUND

[0002] In the existing parks, playgrounds and other environments, fitness and entertainment devices are usually arranged in open spaces. These fitness and entertainment devices are mostly single bar, double bar and other single-person fitness devices. These devices lack interactivity and are difficult to meet the interactive needs of multiple people exercising and entertaining. SUMMARY

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present application is to provide a ball throwing interactive device to meet the interactive needs of multiple people exercising and entertaining.

[0004] The above-mentioned object of the present application can be realized by the following technical scheme. The present application provides a ball throwing interactive device, comprising:

[0005] A placeable seat capable of being lifted;

[0006] A ball throwing mechanism arranged on the placeable seat, the ball throwing mechanism comprising a ball throwing channel arranged on the placeable seat and a ball pushing mechanism arranged in the ball throwing channel;

[0007] A driving mechanism connected with the ball pushing mechanism through a transmission mechanism;

[0008] A ball movably arranged in the ball throwing channel, the ball pushing mechanism having a first movement state of pushing the ball out of the ball throwing channel;

[0009] And a lifting mechanism connected with the placeable seat for adjusting the height of the placeable seat.

[0010] In a preferred embodiment of the present application, a plurality of ball throwing mechanisms are arranged, the plurality of ball throwing mechanisms are arranged in a ring shape and are spaced apart, and the driving mechanism synchronously drives each ball pushing mechanism through the transmission mechanism.

[0011] In a preferred embodiment of the present application, the ball pushing mechanism comprises a pushing member movably arranged in the ball throwing channel and a power member driving the pushing member to move, and the driving mechanism is connected with the power member through the transmission mechanism.

[0012] In a preferred embodiment of the present application, the power member comprises a driving screw arranged along the axial direction of the ball throwing channel, and the pushing member comprises a threaded plate arranged on the driving screw, the threaded plate being movably clamped in the ball throwing channel.

[0013] In a preferred embodiment of the present application, the driving mechanism comprises a first driving device, and the transmission mechanism comprises a gear transmission structure arranged between the first driving device and the driving screw.

[0014] In a preferred embodiment of the present application, the driving mechanism further comprises a mounting box, and the transmission mechanism is arranged in the mounting box.

[0015] In a preferred embodiment of the present application, the gear transmission structure comprises:

[0016] a first driving wheel arranged on the first driving device;

[0017] a first driven wheel arranged on the driving screw;

[0018] a rotatable transmission shaft arranged between the first driving wheel and the first driven wheel, and a first transmission wheel and a second transmission wheel are coaxially arranged on the transmission shaft, the first transmission wheel is in driving engagement with the first driving wheel, and the second transmission wheel is in driving engagement with the first driven wheel.

[0019] In a preferred embodiment of the present application, a limiting structure is arranged on the driving screw to prevent the threaded plate from being detached, and the limiting structure comprises a limiting plate arranged on the driving screw.

[0020] In a preferred embodiment of the present application, a mounting cover is arranged on the upper cover of the placing seat, and the mounting cover and the placing seat clamped form the ball throwing channel.

[0021] In a preferred embodiment of the present application, the ball throwing interaction device further comprises an elastic connecting piece, and the ball is connected with the ball pushing mechanism through the elastic connecting piece.

[0022] In a preferred embodiment of the present application, the lifting mechanism comprises:

[0023] a mounting frame arranged on the base;

[0024] a threaded column which is arranged on the mounting frame in a clamped and liftable manner, and the threaded column is connected with the placing seat;

[0025] a lifting screw which is in driving engagement with the threaded column for driving the threaded column to move up and down;

[0026] and a second driving device which is in engagement with the lifting screw for driving.

[0027] The technical scheme of the present application has the following remarkable beneficial effects:

[0028] The ball throwing interactive device can be preset in a park or a garden landscape. When the ball throwing interactive device is used, the height position of the placing seat can be adjusted through the lifting mechanism, so that the height of the ball throwing mechanism can meet the requirements of the user. Then, the driving mechanism is started, the ball throwing mechanism is driven by the driving mechanism to push the ball out of the ball throwing channel, and then people can entertain and interact or exercise by catching the ball. Of course, people can also entertain or exercise by hitting or avoiding, which is not limited here. Especially when multiple ball pushing mechanisms are arranged, multiple balls are pushed out at the same time by the driving mechanism driving multiple ball pushing mechanisms, which can meet the entertainment and exercise needs of multiple people at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0030] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present application in any way. In addition, the shapes and scale sizes of the components in the drawings are only illustrative and are used to help understand the present application, and are not specific limitations on the shapes and scale sizes of the components of the present application. Those skilled in the art can select various possible shapes and scale sizes to implement the present application according to specific circumstances under the guidance of the present application.

[0031] Figure 1 A sectional view of the ball throwing interactive device;

[0032] Figure 2 A top view of the driving mechanism;

[0033] Figure 3 A sectional view of the ball throwing interactive device; Figure 1 A partial enlarged view of A in the sectional view;

[0034] Figure 4 A front view of the ball throwing channel.

[0035] Reference signs of the above drawings:

[0036] 1, placing seat;

[0037] 2, ball throwing mechanism; 21, ball throwing channel; 22, ball pushing mechanism; 221, pushing member; 222, power member; 23, mounting cover;

[0038] 3, driving mechanism; 31, first driving device; 32, mounting box;

[0039] 4, transmission mechanism; 41, gear transmission structure; 411, first driving wheel; 412, first driven wheel; 413, transmission shaft; 414, first transmission wheel; 415, second transmission wheel;

[0040] 5, ball;

[0041] 6, lifting mechanism; 61, mounting frame; 62, threaded column; 63, lifting screw; 64, second driving device;

[0042] 7, limiting structure; 71, limiting plate;

[0043] 8, elastic connecting piece;

[0044] 9, base. DETAILED DESCRIPTION

[0045] 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. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0046] Please refer to Figures 1 to 4 The ball throwing interactive device provided in the embodiments of the present application includes: a liftable placing seat 1; a ball throwing mechanism 2 arranged on the placing seat 1, wherein the ball throwing mechanism 2 includes a ball throwing channel 21 arranged on the placing seat 1 and a ball pushing mechanism 22 arranged in the ball throwing channel 21; a driving mechanism 3 connected with the ball pushing mechanism 22 through a transmission mechanism 4; the ball throwing channel 21 can accommodate a ball 5, and the ball pushing mechanism 22 can push the ball 5 out of the ball throwing channel 21 under the driving of the driving mechanism 3; and a lifting mechanism 6 connected with the placing seat 1 and used for adjusting the height of the placing seat 1.

[0047] Overall, the ball throwing interactive device provided in the embodiments of the present application can be arranged in a park or a garden to meet the entertainment or exercise needs of people. When the ball throwing interactive device is used, the height position of the placing seat 1 can be adjusted through the lifting mechanism 6, so that the height of the ball throwing mechanism 2 can meet the needs of the user. Then, the driving mechanism 3 is started to drive the ball throwing mechanism 2 to push the ball 5 out of the ball throwing channel 21, so that people can entertain or exercise by catching the ball 5. Of course, people can also entertain or exercise by hitting or avoiding, which is not limited here.

[0048] The ball pushing mechanism 22 is installed on the placing seat 1 for pushing the ball 5, and the lifting mechanism 6 is arranged below the placing seat 1 for lifting the placing seat 1. Specifically, the ball throwing channel 21 can be arranged horizontally on the placing seat 1. Of course, in order to prevent the ball 5 from sliding out of the ball throwing channel 21 in advance, the ball throwing channel 21 can also be arranged slightly inclined, which is not limited here. The lifting mechanism 6 can be arranged in the height direction, thereby being able to vertically adjust the height position of the placing seat 1.

[0049] In the embodiments of the present application, referring to Figure 1 and Figure 2 , the ball throwing mechanism 2 is provided with a plurality of ball throwing mechanisms 2 arranged in a ring shape and spaced apart around the placing seat 1, and the driving mechanism 3 synchronously drives each ball pushing mechanism 22 through the transmission mechanism 4.

[0050] By arranging a plurality of ball throwing mechanisms 2, the needs of multiple people for entertainment or exercise can be met at the same time. Before use, the height position of the ball throwing mechanism 2 can be adjusted in advance by the lifting mechanism 6 according to the height of the user, so that the throwing position of the ball 5 meets the height needs of people.

[0051] Specifically, when a plurality of ball throwing mechanisms 2 are arranged, the plurality of ball throwing mechanisms 2 can be arranged in a ring shape, for example, a plurality of ball throwing mechanisms 2 can be uniformly and spaced apart on the placing seat 1. By a plurality of ball throwing mechanisms 2, a plurality of balls 5 can be thrown in different directions, and people can interact in different directions by catching balls and other operations.

[0052] For example, four groups of ball throwing mechanisms 2 can be arranged on the placing seat 1, and the four groups of ball throwing mechanisms 2 are arranged in different directions, so that the four groups of ball throwing mechanisms 2 can throw balls 5 in four directions at the same time. Of course, the designer can also adjust the number of ball throwing mechanisms 2 according to the needs of use, which is not limited here.

[0053] Of course, a plurality of ball throwing mechanisms 2 can also be arranged on the same side of the placing seat 1, so that the balls 5 are thrown in the same direction, which is not limited here.

[0054] Further, since there are differences in the height of people, in order to make the ball throwing interaction device better meet the needs of people of different heights. The designer can also arrange a plurality of lifting mechanisms 6, at this time the placing seat 1 can be composed of a plurality of independent seats, the height positions of which can be independently adjusted by the lifting mechanisms 6, and the ball throwing mechanisms 2 are independently arranged on each seat. Before use, the user can adjust the height position of one of the ball throwing mechanisms 2 through the lifting mechanism 6 according to the height, so that the ball throwing interaction device can meet the needs of people of different heights at the same time, such as parents and children.

[0055] In the embodiment of the present application, the ball pushing mechanism 22 comprises a pushing member 221 movably arranged in the ball throwing channel 21, and a power member 222 driving the pushing member 221 to move, and the driving mechanism 3 is connected with the power member 222 through the transmission mechanism 4.

[0056] In use, the driving mechanism 3 drives the power member 222 through the transmission mechanism 4, the power member 222 drives the pushing member 221 to move, so that the ball 5 arranged in the ball throwing channel 21 can be pushed out by the pushing member 221. The driving force of the driving mechanism 3 can be controlled, and then the speed of the ball 5 pushed out can be controlled, so that different throwing speeds of the ball 5 can be generated to better meet the needs of users.

[0057] The designer can pre-store the corresponding mathematical relationship between the driving force of the driving mechanism 3 and the throwing speed and distance of the ball 5. When a user uses the ball throwing interaction device for entertainment or exercise, the driving force of the driving mechanism 3 can be adjusted according to needs to achieve different throwing states of the ball 5, and then the user can better enjoy the entertainment and exercise.

[0058] In the embodiment of the present application, the power member 222 comprises a driving screw arranged along the axial direction of the ball throwing channel 21, and the pushing member 221 comprises a threaded plate arranged on the driving screw, and the threaded plate is movably clamped in the ball throwing channel 21.

[0059] The driving screw drives the threaded plate to move, the driving screw can be driven through threads, has high transmission precision, and can more accurately control the throwing state of the ball 5. The threaded plate is movably clamped in the ball throwing channel 21, so that a sliding block structure is formed between the threaded plate and the ball throwing channel 21, and the threaded plate has higher movement stability.

[0060] The designer can also arrange a limiting groove on the threaded plate, when the ball 5 is arranged in the ball throwing channel 21, the ball 5 can enter the limiting groove, so that the ball 5 in the ball throwing channel 21 does not move radially during the pushing of the ball 5 by the threaded plate.

[0061] Of course, the designer can also use other structures to push the ball 5, for example, using a jet to push the ball 5 or using a telescopic rod structure to push the ball 5, which is not limited here.

[0062] In the embodiment of the present application, in combination with Figure 3 , the driving mechanism 3 comprises a first driving device 31, and the transmission mechanism 4 comprises a gear transmission structure 41 arranged between the first driving device 31 and the driving screw.

[0063] By adopting the gear transmission structure 41, the gear transmission has higher transmission efficiency and precision, so as to accurately control the throwing speed of the ball 5, and further facilitate the control of the movement path of the ball 5.

[0064] Of course, designers can also adopt other transmission structures instead of the gear transmission structure 41, such as a belt wheel transmission structure, which is not limited here.

[0065] Further, the ball throwing interaction device can further include a controller (not shown), which is electrically connected with the lifting mechanism 6 and the first driving device 31, and controls the first driving device 31 by using the controller. The driving force of the first driving device 31 is controlled by the controller, so as to control the throwing time and distance of the ball 5.

[0066] Different ball throwing paths can be performed by a control program preset in the controller, so as to make it difficult for people to predict the ball throwing trajectory, and further increase the difficulty of catching the ball and improve the entertainment interaction experience.

[0067] Further, the controller can also control the lifting mechanism 6, and the lifting mechanism 6 can be controlled by the controller to realize the height adjustment. Alternatively, the controller can also control the first driving device 31 to throw the ball 5 in the process of lifting of the lifting mechanism 6, so as to further increase the complexity of the ball throwing path of the ball 5, so as to meet the entertainment interaction and exercise needs of different people. Of course, designers can complete different ball throwing states by the controller according to the entertainment and exercise, which is not limited here.

[0068] In the embodiment of the application, the driving mechanism 3 further includes a mounting box 32, and the transmission mechanism 4 is arranged in the mounting box 32.

[0069] The mounting box 32 can protect the transmission structure, prevent the transmission structure from being exposed to the natural environment and aging and damaged, and prevent people from touching the transmission mechanism 4 and causing safety risks. Specifically, the mounting box 32 can be arranged at the middle part of the placing seat 1, so that people are not easy to touch the mounting box 32.

[0070] In the embodiment of the application, the gear transmission structure 41 includes a first driving wheel 411 arranged on the first driving device 31, a first driven wheel 412 arranged on the driving screw, and a rotatable transmission shaft 413 arranged between the first driving wheel 411 and the first driven wheel 412. The transmission shaft 413 is coaxially provided with a first transmission wheel 414 and a second transmission wheel 415. The first transmission wheel 414 is in transmission engagement with the first driving wheel 411, and the second transmission wheel 415 is in transmission engagement with the first driven wheel 412.

[0071] Specifically, one end of the drive screw can be arranged in the mounting box 32, the drive screw can be connected with the mounting box 32 through a bearing, and the transmission shaft 413 can also be rotatably arranged in the mounting box 32 through a bearing. The first driving device 31 and the drive screw can be better transmitted through gears, have higher transmission accuracy, and will not slip. By reasonably adjusting the gear ratio between the gears, the transmission speed of the drive screw can be adjusted, and then the throwing speed of the ball 5 can be controlled.

[0072] The first driving wheel 411 can be a cylindrical gear arranged in the horizontal direction. The first driven wheel 412 can be a conical gear arranged in the height direction. The transmission shaft 413 can be arranged in the height direction for transmission. The first transmission wheel 414 can be a cylindrical gear arranged on the transmission shaft 413. The first driving wheel 411 is engaged with the first transmission wheel 414. The second transmission wheel 415 can be a conical gear arranged on the transmission shaft 413. The first driven wheel 412 is engaged with the second transmission wheel 415. By adopting the above arrangement, each first driven wheel 412 can be arranged around the first driving wheel 411, and the first driven wheel 412 and the first driving wheel 411 will not interfere with each other, facilitating the simultaneous arrangement of multiple ball throwing mechanisms 2, and having better installation convenience. Moreover, by using gears of different structures in cooperation, the transmission direction between the first driving device 31 and the drive screw can be changed, which is beneficial to adjusting the arrangement direction of each drive screw in space as needed. Further, the designer can also adjust the transmission ratio between each ball throwing mechanism 2 and the first driving wheel 411, so that the same first driving device 31 can throw balls at different speeds to adapt to the use needs of different groups of people.

[0073] In the embodiment of the present application, a limiting structure 7 is arranged on the drive screw to prevent the threaded plate from being separated. The limiting structure 7 includes a limiting plate 71 arranged on the drive screw.

[0074] Specifically, the limiting plate 71 can be arranged at one end of the drive screw close to the outlet of the ball throwing channel 21. The limiting plate 71 can prevent the threaded plate from being separated from the ball throwing channel 21.

[0075] In the embodiment of the present application, the placing seat 1 is covered with a mounting cover 23, and the mounting cover 23 and the placing seat 1 are clamped to form the ball throwing channel 21.

[0076] Specifically, one end of the mounting cover 23 can be connected with the mounting box 32, and the other end of the mounting cover 23 is provided with a ball throwing outlet. Of course, the mounting cover 23 can also be arranged integrally with the placing seat 1, which is not limited here.

[0077] In the embodiment of the present application, the ball throwing interactive device further comprises an elastic connecting member 8, and the ball 5 is connected with the ball pushing mechanism 22 through the elastic connecting member 8.

[0078] The elastic connecting member 8 can be an elastic rope, and the ball 5 can be an elastic ball. One end of the elastic rope is connected with the threaded plate, and the other end of the elastic rope is connected with the elastic ball. In this way, after the elastic ball is pushed out, the elastic ball will not be lost under the traction of the elastic rope.

[0079] The ball can be a hollow structure or a solid structure. The shape of the ball can be circular, oval, rectangular or the like, which is not limited herein. Of course, other objects can be used to replace the ball, which is not limited herein.

[0080] In the embodiment of the present application, the lifting mechanism 6 comprises a mounting frame 61 arranged on the base 9, a threaded column 62 arranged on the mounting frame 61 in a lifting manner, the threaded column 62 being connected with the placing seat 1, a lifting screw 63 being in transmission connection with the threaded column 62 and used for driving the threaded column 62 to perform lifting movement, and a second driving device 64 being in connection with the lifting screw 63 and used for driving.

[0081] Specifically, the mounting frame 61 can be composed of a mounting pipe arranged on the base 9, the threaded column 62 is arranged in the mounting pipe in a lifting manner, and the second driving device 64 is fixedly arranged on the mounting pipe. One end of the threaded column 62 is connected with the bottom end of the placing seat 1, and the other end of the threaded column 62 is in thread cooperation with the lifting screw 63. The second driving device 64 drives the lifting screw 63 to rotate, and then drives the threaded column 62 to perform lifting. The rotation limiting structure can be arranged between the threaded column 62 and the mounting frame 61 to prevent the threaded column 62 from rotating during lifting.

[0082] Of course, other structures of the lifting mechanism 6 can be used, such as a telescopic rod driven by hydraulic pressure or air pressure, a sliding table structure driven by a motor, and the like, which is not limited herein.

[0083] The ball throwing interactive device can be arranged in a park or a landscape, the height position of the placing seat 1 is adjusted by the lifting mechanism 6, the height of the ball throwing mechanism 2 can meet the requirement of the user, then the driving mechanism 3 is started, the ball throwing mechanism 2 is driven by the driving mechanism 3 to push the ball 5, the ball 5 is pushed out of the ball throwing channel 21, then the user can play or exercise by catching the ball 5. Especially when the ball pushing mechanism 22 is arranged in multiple, the multiple ball pushing mechanisms 22 are driven by the driving mechanism 3 to push the multiple balls 5 out at the same time, the requirement of multiple people for playing and exercising can be met at the same time.

[0084] All articles and references disclosed, including patent applications and publications, are incorporated by reference for all purposes. The term "consisting essentially of to describe a combination shall include the elements, ingredients, components or steps identified, and such other elements, ingredients, components or steps that do not materially affect the basic and novel characteristics of the combination. The use of the term "comprising" or "including" to describe combinations of elements, ingredients, components or steps herein also is taken to mean that other elements, ingredients, components or steps can be present in addition to those specifically recited, in order to achieve the stated purpose. The term "may" is intended to mean "possibly" in describing any attribute, parameter, circumstance or condition that can exist in connection with an attribute, parameter, circumstance or condition that is recited. Multiple instances of an element, ingredient, component or step can be provided by a single integrated element, ingredient, component or step. Alternatively, a single integrated element, ingredient, component or step can be divided into multiple instances of an element, ingredient, component or step. The disclosure of elements, ingredients, components or steps using a "comprise", "include" or "have" to describe the same should be interpreted as a "consisting essentially of", or "consisting of", or "including essentially of", or "including of", or "having essentially of", or "having of" embodiment. The use of the term "a" or "one" to describe an element, ingredient, component or step is not intended to foreclose other

[0085] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts between the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A ball-throwing interactive device, characterized in that, The application relates to a ball-throwing interactive device. The ball-throwing interactive device comprises a liftable placing seat, a ball-throwing mechanism arranged on the placing seat, a driving mechanism connected with the ball-throwing mechanism through a transmission mechanism, and a lifting mechanism connected with the placing seat. The ball-throwing mechanism comprises a ball-throwing channel arranged on the placing seat and a ball pushing mechanism arranged in the ball-throwing channel. The ball-throwing channel can accommodate a ball, and the ball pushing mechanism can push the ball out of the ball-throwing channel under the driving of the driving mechanism. The ball-throwing mechanism is arranged in a plurality of annularly spaced-apart forms around the placing seat, and the driving mechanism synchronously drives each ball pushing mechanism through the transmission mechanism. The placing seat is covered with a mounting cover, and the mounting cover and the placing seat form the ball-throwing channel. The ball-throwing interactive device further comprises an elastic connecting piece connecting the ball with the ball pushing mechanism. The ball-throwing interactive device further comprises a controller capable of controlling the first driving device to throw the ball while the lifting mechanism is lifting. The ball pushing mechanism comprises a pushing piece movably arranged in the ball-throwing channel and a power piece driving the pushing piece to move, and the driving mechanism is connected with the power piece through the transmission mechanism. The power piece comprises a driving screw arranged along the axial direction of the ball-throwing channel, and the pushing piece comprises a threaded plate arranged on the driving screw and movably clamped in the ball-throwing channel.

2. The ball-throwing interactive device of claim 1, wherein, The transmission mechanism comprises a gear transmission structure arranged between the first driving device and the driving screw.

3. The ball-throwing interactive device of claim 2, wherein, The driving mechanism further comprises a mounting box, and the transmission mechanism is arranged in the mounting box.

4. The ball-throwing interactive device of claim 3, wherein, The gear transmission structure comprises:

5. The ball-throwing interactive device of claim 3, wherein, a first driving wheel arranged on the first driving device; 6. The ball-throwing interactive device of claim 4, wherein, a first driven wheel arranged on the driving screw; a rotatable transmission shaft arranged between the first driving wheel and the first driven wheel, wherein a first transmission wheel and a second transmission wheel are coaxially arranged on the transmission shaft, the first transmission wheel is in transmission connection with the first driving wheel, and the second transmission wheel is in transmission connection with the first driven wheel. A limiting structure is arranged on the driving screw to prevent the threaded plate from being separated, and the limiting structure comprises a limiting plate arranged on the driving screw. The lifting mechanism comprises:

7. The ball-throwing interactive device of claim 4, wherein, a mounting frame arranged on a base; 8. The ball-throwing interactive device of claim 1, wherein, a threaded column movably clamped on the mounting frame, wherein the threaded column is connected with the placing seat; a lifting screw in transmission connection with the threaded column for driving the threaded column to move up and down; and a second driving device connected with the lifting screw for driving. ​ ​

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