A circular track toy

Abstract

The present invention discloses a circulating track toy, comprising a circular rotating body whose rotating plane is parallel to a vertical plane; a first track arranged around the circular rotating body for a small ball to enter and slide down along the top of the circular rotating body; a second track arranged around the circular rotating body for the small ball to slide down; a first propulsion device arranged between the first track and the second track for moving the small ball at the exit of the first track into the second track; a transmission group connected to the circular rotating body and the first propulsion device for driving the circular rotating body and the first propulsion device to run simultaneously; a ball collector arranged at the bottom of the circular rotating body and at the exit of the second track for collecting the small ball at the exit of the second track to the bottom of the circular rotating body. The multiple tracks of the toy are arranged around the circular rotating body, which reduces the horizontal size of the toy; at the same time, the circular rotating body and the first propulsion device input energy to the small ball twice, ensuring that the height of the toy is within a range suitable for children.

Description

Technical Field

[0001] The invention relates to the field of toys, in particular to a circulating track toy. Background Art

[0002] Track toys, especially track toys with a looping path, as a kind of educational toys, have a positive effect on children's physical and mental growth and intellectual development. An existing educational Ferris wheel track toy is such a track toy that is set up with a looping track as the basic structure. Please refer to Figure 1 The educational Ferris wheel track toy mainly includes a Ferris wheel track 02, a circular track 06, an upper connecting track 07 and a lower connecting track 08, and the moving wheel 04 and other components input the energy of the circular motion to the ball. The power part and the track part of the educational Ferris wheel track are adjacent to each other, which increases the length and width. However, children are small in size and cannot operate a large-sized track toy from a global perspective. The toy is very easy to cause bumps on children's bodies when in use.

[0003] In summary, how to reduce the size of the track toy has become an urgent problem to be solved by those skilled in the art. Summary of the invention

[0004] The object of the present invention is to provide a circulating track toy which is small in size and suitable for children to operate.

[0005] To achieve the above object, the present invention provides a circulating track toy, comprising:

[0006] A circular rotating body whose rotation plane is parallel to the vertical plane;

[0007] A first track and a second track are arranged around the annular rotating body and are used for the small ball to enter along the top of the annular rotating body and slide downward;

[0008] A first propulsion device disposed between the first track and the second track and used to move the ball at the exit of the first track to the entrance of the second track;

[0009] A transmission group connected to the annular rotating body and the first propulsion device and used to drive the annular rotating body and the first propulsion device to operate synchronously;

[0010] A ball collector is connected to the bottom of the annular rotating body and the outlet of the second track and is used to collect the small balls at the outlet of the second track to the bottom end of the annular rotating body.

[0011] Preferably, the first propulsion device is inclined upward relative to a horizontal plane, so as to allow the ball to move upward from an exit of the first track to an entrance of the second track.

[0012] Preferably, the annular rotating body is specifically an annular sprocket set, comprising:

[0013] The upper sprocket and the lower sprocket have their rotational central axes perpendicular to the same vertical line;

[0014] an endless chain cooperating with the upper sprocket and the lower sprocket;

[0015] A plurality of storage boxes are evenly distributed on the annular chain and are used to vertically move the small balls in the ball collector upward to the top of the upper chain wheel.

[0016] Preferably, the transmission group comprises:

[0017] A first transmission shaft placed horizontally and connected to the upper sprocket wheel for driving the upper sprocket wheel to rotate;

[0018] A second transmission shaft rotates synchronously with the first transmission shaft and is used to drive the first propulsion device to move.

[0019] Preferably, it also includes a handle connected to one end of the second transmission shaft.

[0020] Preferably, the first track comprises three sections of a first sub-track, a second sub-track and a third sub-track which are connected end to end in sequence;

[0021] The first sub-track is inclined relative to the upper end of the upper sprocket wheel to receive the ball rolling down from the top of the upper sprocket wheel, the second sub-track is perpendicular to the horizontal plane, and the third sub-track is parallel to the horizontal plane and is in a rotational shape.

[0022] Preferably, it also includes:

[0023] A third track is arranged adjacent to the annular sprocket assembly and is used for the balls to slide downward to the ball collector;

[0024] A second propulsion device is provided between the second track and the third track and is used to move the ball at the exit of the second track upward to the entrance of the third track; wherein the second propulsion device moves synchronously with the second transmission shaft.

[0025] Preferably, mutually meshing gear pairs are provided between the first transmission shaft and the second transmission shaft, between the second transmission shaft and the first propulsion device, and between the second transmission shaft and the second propulsion device.

[0026] Preferably, the first propulsion device and the second propulsion device are both screw propellers.

[0027] Preferably, the tail portion of the third rail spirals and extends downward relative to a horizontal plane.

[0028] Compared with the above background technology, the circular track toy provided by the present invention includes a circular rotating body and a first propulsion device synchronously driven by a transmission group; a ball collector arranged at the bottom of the circular rotating body for collecting small balls; and also includes a first track and a second track arranged at both ends of the first propulsion device and surrounding the circular rotating body for the small balls to slide downward. First, the circular rotating body runs in a vertical plane under the drive of the transmission group. During the operation, the small balls in the ball collector enter the circular sprocket group and rise to the top of the circular rotating body with the circular sprocket group; secondly, the small balls fall into the entrance of the first track, roll down along the first track to the entrance of the first propulsion device; then, the first propulsion device, which is also driven by the transmission group, moves the small balls to the entrance of the second track, and rolls down along the second track, and finally enters the ball collector to wait for a new round of circulation.

[0029] The above-mentioned circular track toy arranges the first track and the second track around a circular rotating body whose rotation plane is parallel to the vertical plane. The size of the entire toy in the horizontal plane is reduced through reasonable layout. At the same time, the transmission group drives the circular rotating body and the first propulsion device to move simultaneously, thereby extending the stroke of the ball. Specifically, the circular rotating body lifts the ball from the bottom to the top of the entire toy, providing the ball with gravitational potential energy to roll along the first track and the second track. The first propulsion device connects the first track and the second track, and provides a second energy input to the ball under the drive of the transmission group, which can extend the length of the first track and the second track within the limited toy height and increase the stroke of the ball.

[0030] In summary, the circular track toy provided by the present application has a small horizontal dimension, that is, it occupies a small area, and children can observe or touch other parts on either side of the toy, avoiding accidents such as bumping into the toy during repeated getting up; in addition, the energy for the ball movement is provided twice by the sliding rotor and the first propulsion device, and there is no need to excessively increase the height of the toy while ensuring the length of the track, so that the height of the toy is also within the reach of children. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0032] Figure 1 It is a structural schematic diagram of an existing educational Ferris wheel track toy;

[0033] Figure 2 A schematic diagram of the structure of a circular track toy provided by an embodiment of the present invention;

[0034] Figure 3 A schematic diagram of the structure of the circulating track toy provided by an embodiment of the present invention in another direction;

[0035] Figure 4 A side view of a circulating track toy provided by an embodiment of the present invention;

[0036] Figure 5 for Figure 4 A front view of the circulating track toy shown. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] Please refer to Figures 2 to 5 , Figure 2 A schematic diagram of the structure of a circular track toy provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of the circulating track toy provided by an embodiment of the present invention in another direction; Figure 4 A side view of a circulating track toy provided by an embodiment of the present invention; Figure 5 for Figure 4 A front view of the circulating track toy shown.

[0040] The present invention provides a circular track toy, comprising a circular rotating body; a ball collector 5 arranged at the bottom of the circular rotating body; a first track 31, a second track 32 arranged around the circular rotating body, and a first propulsion device 41 arranged between the first track 31 and the second track 32 to connect the outlet of the first track 31 and the entrance of the second track 32; wherein the circular rotating body runs in a vertical plane, in other words, the rotation plane of the circular rotating body is parallel to the vertical plane, and the small balls can be loaded from the ball collector 5 and transported upward to the top of the circular rotating body, so that the small balls enter the first track 31 along the top of the circular rotating body and slide downward, and then are transported along the first propulsion device 41 to the second track 32 and continue to slide down until they return to the ball collector 5 to start the next cycle. Obviously, the circular track toy can also include a plurality of small balls of matching sizes.

[0041] It should be noted that the kinetic energy of the ball in the circular track toy is derived from the kinetic energy transmitted simultaneously by the transmission group to the annular rotating body and the first propulsion device 41, and the kinetic energy of the transmission body is usually manually input by children to increase the fun of the toy. Of course, a motor power device can also be set at the input end of the transmission group to realize the automatic circulation of the circular track toy.

[0042] Compared with the existing track toys, the first track 31, the first propulsion device 41 and the second track 32 of the circulating track toy provided by the present invention are arranged around the annular rotating body, which can reduce the horizontal size of the entire track toy; the transmission group provides energy to both the annular rotating body and the first propulsion device 41 to realize the circular motion of the ball, that is, the transmission group has one input end and two output ends, which can provide kinetic energy twice when the ball rolls downward, avoiding excessive increase in the height of the annular rotating body, resulting in a larger vertical size of the toy, that is, too high a height.

[0043] The circulating track toy provided by the present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0044] Please refer to Figure 2 and Figure 3 , the first propulsion device 41 performs work on the ball for the second time, so that the ball transitions from the exit of the first track 31 to the entrance of the second track 32. Specifically, according to the different effects of the first propulsion device 41 on the ball, there are two different settings of the first propulsion device 41: First, the first propulsion device 41 is set horizontally, that is, the exit of the first track 31 and the entrance of the second track 32 are in the same horizontal plane, and the first propulsion device 41 horizontally connects the exit of the first track 31 and the entrance of the second track 32; Second, the first propulsion device 41 is set upwardly at an angle, that is, the exit of the first track 31 is lower than the entrance of the second track 32, and the first propulsion device 41 is connected between the first track 31 and the second track 32 at an angle relative to the horizontal plane, and the end connected to the first track 31 is the starting end of the first propulsion device 41, and the end connected to the second track 32 is the end of the first propulsion device 41.

[0045] In the first specific embodiment, the first propulsion device 41 adopts the latter setting mode, that is, the first propulsion device 41 is inclined upward relative to the horizontal plane, and is used to allow the ball to move upward from the exit of the first track 31 to the entrance of the second track 32. After the ball rolls down to the first propulsion device 41 at the exit of the first track 31, the first propulsion device 41 operated under the action of the driving group transfers the ball upward to the entrance of the second track 32. In this process, the first propulsion device 41 can lift the ball at the exit of the first track 31 close to the bottom of the toy to the entrance of the second track 32 at a high place again. In other words, the setting of the first propulsion device 41 can make the heights of the first track 31 and the second track 32 close to the height of the annular rotating body. Even if the ball reaches the exit of the first track 31, it can still be lifted to a high place by the first propulsion device 41, so as to enter the second track 32, and the travel of the ball is guaranteed without increasing the height of the toy.

[0046] On the basis of the above-mentioned embodiments, the annular rotating body provided by the present application is specifically an annular sprocket set 1, including: an upper sprocket 111 and a lower sprocket 112 whose rotational central axes are perpendicular to the same vertical line, an annular chain 12 matched with the sprocket pair 11 formed by the upper sprocket 111 and the lower sprocket 112; a plurality of storage boxes 13 evenly distributed on the annular chain 12, all of which are used to move the small balls in the ball collector 5 vertically upward to the top of the annular sprocket to realize the circulation of the small balls in the track. Specifically, the lowest point of the lower sprocket 112 serves as the bottom of the annular rotating body, the highest point of the upper sprocket 111 serves as the top of the annular rotating body, the ball collector 5 is located below the lower sprocket 112, and the storage boxes 13 can be evenly distributed at each link of the annular chain 12. After the storage box 13 rotates to the lowest point of the lower sprocket 112 and loads the collected balls in the ball collector 5, it is lifted upward with the rotation of the circular chain 12 to reach the highest point of the upper sprocket 111; then, in the process of rotating downward along the highest point of the upper sprocket 111, the opening of the storage box 13 tilts downward, causing the balls in the storage box 13 to roll into the first track 31.

[0047] The arrangement of the annular rotating body is not limited to the annular sprocket set 1, and can also be similar to Figure 1 In contrast, the advantage of the former is that the annular sprocket in the annular sprocket set 1 has a long diameter and a short diameter, and the long diameter of the annular sprocket is used to lift the ball. Compared with any equal length of the fixed-axis rotating wheel used to lift the ball, the annular sprocket can further reduce the horizontal size of the entire circular track toy, and at the same time, there is a large space between the upper sprocket 111 and the lower sprocket 112 to ensure that the transmission group has sufficient installation space.

[0048] Preferably, the transmission group includes a first transmission shaft 71 placed horizontally and connected to the upper sprocket 111 to drive the upper sprocket 111 to rotate, and a second transmission shaft 72 that rotates synchronously with the first transmission shaft 71 to drive the first propulsion device 41 to move. The first transmission shaft 71 rotates synchronously with the second transmission shaft 72, that is, a synchronization device is provided between the first transmission shaft 71 and the second transmission shaft 72, such as a pair of meshing gears, or a synchronous belt, etc.

[0049] Obviously, the first transmission shaft 71 and the second transmission shaft 72 in the transmission group can both serve as the input end of the transmission group. Specifically, when the child manually rotates the first transmission shaft 71, the first transmission shaft 71 simultaneously drives the annular sprocket group 1 including the upper sprocket 111 and the second transmission shaft 72 to rotate, and the second transmission shaft 72 drives the first propulsion device 41 to operate. Similarly, when the child manually rotates the second transmission shaft 72, the second transmission shaft 72 drives the first propulsion device 41 to operate while driving the first transmission shaft 71 to rotate, and then the first transmission shaft 71 drives the annular sprocket group 1 including the upper sprocket 111 to rotate.

[0050] In the second specific embodiment, the circulating track toy further includes a handle 6 connected to one end of the second transmission shaft 72, that is, a handle 6 fixedly connected to the second transmission shaft 72 is provided at any end of the second transmission shaft 72, and children can participate in the circulation of the ball throughout the whole process by rotating the handle 6, thereby improving the participation of children. The material of the handle 6 can be selected from non-metallic materials, such as plastic or rubber, etc., so as to facilitate children to hold and grasp.

[0051] Since the annular sprocket set 1 is mainly distributed in the height direction, the height of the first track 31 and the second track 32 relative to the bottom surface is greatly increased, which can be used as an important factor to extend the first track 31 and the second track 32. In addition, the first propulsion device 41 can realize the transportation of the small ball from a low place to a high place, so the sum of the heights of the first track 31 and the second track 32 is not limited to the height of the annular sprocket set 1, which can also be used as one of the important factors to extend the first track 31 and the second track 32.

[0052] The first track 31 includes three sections, the first sub-track 311, the second sub-track 312 and the third sub-track 313, which are connected end to end in sequence; wherein the first sub-track 311 is inclined relative to the upper end of the upper sprocket 111 to receive the ball rolling down from the top of the upper sprocket 111, the second sub-track 312 is perpendicular to the horizontal plane, and the third sub-track 313 is parallel to the horizontal plane and is in a rotating shape. Specifically, in order to enable the ball in the storage box 13 located at the highest point of the upper sprocket 111 to accurately roll into the first track 31, the first track 31 is arranged adjacent to the annular sprocket set 1, and in particular, the first sub-track 311 is arranged adjacent to the upper sprocket 111 and extends downwardly inclined relative to the highest point of the upper sprocket 111, so that the ball can freely fall from the highest point of the upper sprocket 111 into the first sub-track 311. In order to speed up the rolling speed of the ball, the second sub-track 312 is perpendicular to the horizontal plane, that is, the second sub-track 312 is arranged vertically, and the ball performs free fall in the second sub-track 312. Considering that the ball rolling out of the third sub-track 313 needs to accurately enter the first propulsion device 41 for continued transportation, the speed of the ball in the third sub-track 313 should be appropriately reduced. To this end, the third sub-track 313 is parallel to the horizontal plane and rotates around the annular sprocket set 1 as the central axis.

[0053] In the above embodiment, the motion state of the ball along the first track 31 is different according to the specific settings of the first sub-track 311, the second sub-track 312 and the third sub-track 313. The ball in the first sub-track 311 is generally in an accelerated state, but affected by the friction of the track surface of the first sub-track 311, the rolling speed of the ball is often not large; after entering the second sub-track 312, regardless of the collision between the ball and the track surface of the second sub-track 312, the ball performs free fall motion, and the motion speed is greatly increased; after entering the third sub-track 313, the ball begins to decelerate. The first track 31 formed by sequentially connecting the first sub-track 311, the second sub-track 312 and the third sub-track 313 provides the ball with a variety of track combinations, so that the ball presents different motion states during rolling, thereby improving the fun of the circular track toy.

[0054] Obviously, the second track 32 can also be set in the same way as the first track 31, that is, the second track 32 can also be formed by connecting multiple sub-tracks in sequence. Considering that no matter whether there is a height difference between the exit of the first track 31, that is, the exit end of the third sub-track 313 and the entrance of the second track 32, the third sub-track 313 can always be connected to the second track 32 through the first propulsion device 41 to achieve the transition of the ball between the third sub-track 313 and the second track 32, the starting height of the second track 32 and the length of the second track 32 are not limited by the third sub-track 313.

[0055] On the basis of any of the above embodiments, the circulating track toy further includes a third track 33 arranged adjacent to the annular sprocket set 1 for the ball to slide downward into the ball collector 5; a second propulsion device 42 arranged between the second track 32 and the third track 33 for moving the ball at the exit of the second track 32 upward to the entrance of the third track 33; wherein the second propulsion device 42 moves synchronously with the second transmission shaft 72. Specifically, the track of the circulating track toy is divided into three levels: the first track 31, the second track 32 and the third track 33, and then the first propulsion device 41 is arranged between the first track 31 and the second track 32, and the second propulsion device 42 is arranged between the second track 32 and the third track 33. When the ball is transported from the bottom of the annular sprocket set 1 to the top of the annular sprocket set 1, the ball will realize multiple top-down and bottom-up movements in the subsequent movement process, and the structure that provides the kinetic energy of the aforementioned movement of the ball comes from the transmission group, or from the first transmission shaft 71 or the second transmission shaft 72.

[0056] The transmission group further includes several pairs of meshing gears disposed between the first transmission shaft 71 and the second transmission shaft 72, between the second transmission shaft 72 and the first propulsion device 41, and between the second transmission shaft 72 and the second propulsion device 42. Figure 2 , Figure 3 , Figure 4 and Figure 5 Obviously, the circular track toy also includes a third transmission shaft 73 and a fourth transmission shaft 74 for fixing the aforementioned multiple pairs of gears, wherein the third transmission shaft 73 is arranged between the first transmission shaft 71 and the second transmission shaft 72 and is perpendicular to both the first transmission shaft 71 and the second transmission shaft 72, and the fourth transmission shaft 74 is arranged between the second transmission shaft 72 and the first propulsion device 41. Specifically, a handle 6 is provided at one end of the second transmission shaft 72, and a first gear 21, a second gear 22 and a third gear 23 are provided in the middle of the second transmission shaft 72. The first gear 21 is vertically meshed with the fourth gear 24 on the third transmission shaft 73 to transmit motion to the third transmission shaft 73. Since the fifth gear 25 on the third transmission shaft 73 is vertically meshed with the sixth gear 26 on the first transmission shaft 71, the third transmission shaft 73 further transmits motion to the first transmission shaft 71, so as to realize the synchronous rotation of the second transmission shaft 72 and the first transmission shaft 71. Similarly, the second gear 22 on the second transmission shaft 72 meshes vertically with the seventh gear 27 on the fourth transmission shaft 74, transmitting the motion to the fourth transmission shaft 74, and the eighth gear 28 on the fourth transmission shaft 74 meshes with the ninth gear 29 fixed to the beginning of the first propulsion device 41, finally realizing the synchronous rotation of the second transmission shaft 72 and the first propulsion device. The second propulsion device 42 meshes with the third gear 23 of the second transmission shaft 72 through the tenth gear 210 fixed to the beginning of the second propulsion device 42, realizing the synchronous rotation with the second transmission shaft 72.

[0057] In summary, the rotation controlled by the handle 6 is transmitted from the second transmission shaft 72 to the first transmission shaft 71, the first propulsion device 41 and the second propulsion device 42 respectively, so as to realize the synchronous movement of multiple transmission parts of the transmission group. The second propulsion device 42 is combined with the first propulsion device 41 to further limit the height of the toy, thereby ensuring a long stroke of the ball when the overall size of the toy is relatively small.

[0058] The first propulsion device 41 and the second propulsion device 42 convert their own rotational motion into the linear motion of the ball, and can adopt a screw shaft or a lead screw, etc. In order to facilitate the observation of the motion state of the ball, in this embodiment, the first propulsion device 41 and the second propulsion device 42 adopt the former setting mode, that is, the first propulsion device 41 and the second propulsion device 42 are both screw shafts, that is, screw propellers.

[0059] Obviously, the toy can accommodate multiple balls to move simultaneously. In order to prevent the balls from being ejected outwards when rolling into the ball collector 5, the tail of the third track 33 spirals downward relative to the horizontal plane to slow down the rolling speed of the balls, so that the balls can accurately enter the ball collector 5 one by one and wait for a new round of circulation.

[0060] The above is a detailed introduction to the circular track toy provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A circular track toy, It is characterized in that include: A circular rotating body whose rotation plane is parallel to the vertical plane; A first track (31) and a second track (32) are arranged around the annular rotating body and are used for the small ball to enter along the top of the annular rotating body and slide downward; a first propulsion device (41) disposed between the first track (31) and the second track (32) and used to move the ball at the exit of the first track (31) to the entrance of the second track (32); a transmission group connected to the annular rotating body and the first propulsion device (41) and used to drive the annular rotating body and the first propulsion device (41) to operate synchronously; A ball collector (5) connected to the bottom of the annular rotating body and the outlet of the second track (32) and used to collect the small balls at the outlet of the second track (32) to the bottom of the annular rotating body; The annular rotating body is specifically an annular sprocket set (1), comprising: An upper sprocket (111) and a lower sprocket (112) whose rotational central axes are perpendicular to the same vertical line; an endless chain (12) cooperating with the upper sprocket (111) and the lower sprocket (112); A plurality of storage boxes (13) evenly distributed on the annular chain (12) and used to move the small balls in the ball collector (5) vertically upward to the top of the upper chain wheel (111); The transmission group comprises: A first transmission shaft (71) placed horizontally and connected to the upper sprocket wheel (111) and used to drive the upper sprocket wheel (111) to rotate; a second transmission shaft (72) that rotates synchronously with the first transmission shaft (71) and is used to drive the first propulsion device (41) to move; The first track (31) comprises three sections, namely, a first sub-track (311), a second sub-track (312), and a third sub-track (313), which are connected end to end in sequence; The first sub-track (311) is inclined relative to the upper end of the upper sprocket (111) to receive the ball rolling down from the top of the upper sprocket (111), the second sub-track (312) is perpendicular to the horizontal plane, and the third sub-track (313) is parallel to the horizontal plane and is in a rotating shape; The input end of the transmission group is provided with a power device, and the power device is used to provide power for the transmission group; A third track (33) disposed adjacent to the annular sprocket assembly (1) and used for the balls to slide downward into the ball collector (5); a second propulsion device (42) disposed between the second track (32) and the third track (33) and used to move the ball at the exit of the second track (32) upward to the entrance of the third track (33); wherein the second propulsion device (42) moves synchronously with the second transmission shaft (72); A pair of gears meshing with each other is provided between the first transmission shaft (71) and the second transmission shaft (72), between the second transmission shaft (72) and the first propulsion device (41), and between the second transmission shaft (72) and the second propulsion device (42).

2. The circulating track toy according to claim 1, It is characterized in that The first propulsion device (41) is inclined upward relative to a horizontal plane and is used to allow the ball to move upward from the exit of the first track (31) to the entrance of the second track (32).

3. The circulating track toy according to claim 1, It is characterized in that It also includes a handle (6) connected to one end of the second transmission shaft (72).

4. The circulating track toy according to claim 3, It is characterized in that The first propulsion device (41) and the second propulsion device (42) are both screw propellers.

5. The circulating track toy according to claim 4, It is characterized in that The tail of the third track (33) spirals and extends downward relative to the horizontal plane.

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