Harvester toy

Abstract

The invention belongs to the technical field of intelligence development of children, and discloses a harvester toy. The harvester toy comprises a machine body, a shadow projection device and a fruit jumping device, a pattern roller in the shadow projection device is rotatably arranged on the machine body, the rolling surface of the pattern roller is provided with a plurality of light-transmitting parts corresponding to the shapes of the sections of various fruits, and a light-emitting source is arranged in the pattern roller. Light can penetrate through the light-transmitting part to be projected on the horizontal plane. A driving part in the fruit jumping device is in transmission connection with a movable top plate, the movable top plate is in transmission connection with fruits located in the machine body, and when the harvester toy runs, the driving part can drive the movable top plate to reciprocate in the vertical direction so as to control the fruits to jump up and down through the movable top plate. According to the arrangement, by driving the movable top plate and the pattern roller to rotate, the effect that the fruit light projection effect and the fruit entity jumping effect are conducted at the same time is achieved, the playability of the harvester toy is higher, and the educational value of teaching through lively activities is enhanced.

Description

Technical Field

[0001] The invention relates to the field of children's intelligence development, in particular to a harvester toy. Background Art

[0002] As parents and educators realize the importance of enhancing children's STEM (science, technology, engineering and teaching) capabilities, especially through gamification learning, the demand for high-quality, innovative toys is increasing. Among them, harvester toys are particularly popular because they simulate real-life scenarios and enhance the ability to understand complex mechanical principles.

[0003] There are two main types of harvesters on the current market: one is a splicable harvester toy, which children can assemble to enhance the fun of the game; the other is a remote-controlled harvester, which children can control through handles, mobile phones and other electronic products to drive, harvest and other actions. Both of the above harvesters have good interactivity and educational effects, which can enrich children's play content. However, the existing harvesters are often quite different from real harvesters in appearance and function, and it is difficult to bring a better play experience to children.

[0004] Based on this, a harvester toy is urgently needed to solve the problems existing in the prior art. Summary of the invention

[0005] The object of the present invention is to provide a harvester toy which can further enhance the fun of playing and has better educational value.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A harvester toy comprises: a body; a light and shadow projection device, the light and shadow projection device comprising a pattern drum and a light source, the pattern drum being rotatably arranged on the body, the rolling surface of the pattern drum being provided with a plurality of light-transmitting portions corresponding to various fruit cross-sectional shapes, the light source being arranged in the pattern drum, and the light emitted by the light source being able to pass through the light-transmitting portions and projected onto a horizontal plane; a fruit jumping device, the fruit jumping device comprising a driving member and a movable top plate, the driving member being transmission-connected to the movable top plate, and the movable top plate being transmission-connected to the fruit located in the body, and when the harvester toy is traveling, the driving member can drive the movable top plate to reciprocate in a vertical direction, so as to control the fruit to jump up and down through the movable top plate.

[0008] Preferably, a guide limit shaft is extended in the horizontal direction in the fuselage, a guide groove is opened in the movable top plate in the vertical direction, and the guide limit shaft is relatively movably arranged in the guide groove.

[0009] Preferably, a raised portion is provided on the top of the movable top plate.

[0010] Preferably, a convex block is provided at the bottom of the movable top plate;

[0011] The driving member includes a power transmission component and a claw wheel, the power transmission component is transmission-connected between the claw wheel and the wheel axle of the fuselage, a plurality of conical driving claws are arranged on the claw wheel at intervals along the circumferential direction, and a recess is formed between adjacent conical driving claws, and when the claw wheel rotates, the conical driving claw can push the movable top plate to move up and down, so that the protrusion is connected with the conical driving claw and the recess in sequence.

[0012] Preferably, the portion where the protrusion contacts the claw wheel is configured as an arc-shaped contact surface.

[0013] Preferably, the power transmission assembly includes a first transmission gear, a second transmission gear and a third transmission gear, the first transmission gear is fixedly connected to the wheel axle of the fuselage, the second transmission gear is meshingly connected to the first transmission gear, the third transmission gear is meshingly connected to the second transmission gear, and the claw wheel is fixedly connected to a fixed shaft that limits the third transmission gear.

[0014] Preferably, the light and shadow projection device further comprises a power transmission component, and the pattern roller is transmission-connected to the wheel axle of the fuselage via the power transmission component.

[0015] Preferably, the power transmission assembly includes a fourth transmission gear, a fifth transmission gear and a sixth transmission gear, the fourth transmission gear is fixedly connected to the wheel axle of the fuselage, the fifth transmission gear is meshingly connected to the fourth transmission gear, the sixth transmission gear is meshingly connected to the fifth transmission gear, and the pattern roller is fixedly connected to a fixed shaft that limits passing through the sixth transmission gear.

[0016] Preferably, a transparent piece is attached to the inner wall surface of the pattern roller.

[0017] Preferably, the light and shadow projection device also includes a touch switch and an electronic circuit board, the touch switch is arranged on the body, the electronic circuit board is arranged in the pattern roller and electrically connected to the touch switch, and a driving IC is arranged on the electronic circuit board, and the driving IC is electrically connected to the light source.

[0018] The beneficial effects of the present invention are as follows: when the harvester toy starts to move, the movable top plate and the pattern roller can be driven to rotate to achieve the effect of simultaneous fruit light projection effect and fruit entity jumping effect, which can accurately reflect the crop harvesting scene, enhance children's immersion in the crop harvesting process, and thus help children better understand the operation of a real agricultural harvester. It not only has higher playability, but also has more profound educational significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a structural schematic diagram of a harvester toy provided by an embodiment of the present invention;

[0020] Figure 2 is a front view of a harvester toy provided by an embodiment of the present invention;

[0021] Figure 3 is a top view of a harvester toy provided by an embodiment of the present invention;

[0022] Figure 4 is along Figure 3 Sectional view at AA in the middle;

[0023] Figure 5 is along Figure 3 Sectional view at the middle BB;

[0024] Figure 6 It is a schematic diagram of the connection between the movable top plate and the claw wheel provided in an embodiment of the present invention.

[0025] In the figure:

[0026] 100. Fruit;

[0027] 1. Fuselage; 111. Front wheel axle; 112. Rear wheel axle; 121. Front wheel; 122. Rear wheel; 13. Guide limit axis;

[0028] 2. Light and shadow projection device; 21. Pattern roller; 211. Light-transmitting part; 22. Light source; 23. Transparent part; 24. Power transmission assembly; 241. Fourth transmission gear; 242. Fifth transmission gear; 243. Sixth transmission gear; 25. Touch switch; 26. Electronic circuit board;

[0029] 3. Fruit jumping device; 31. Driving member; 311. Power transmission assembly; 3111. First transmission gear; 3112. Second transmission gear; 3113. Third transmission gear; 312. Claw wheel; 3121. Conical driving claw; 3122. Concave portion; 32. Movable top plate; 321. Bump; 3211. Arc-shaped contact surface; 3212. Guide groove; 322. Protrusion. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] Combination Figures 1 to 6 As shown, this embodiment provides a harvester toy, including a body 1, a light and shadow projection device 2 and a fruit jumping device 3.

[0036] See Figure 2As shown, wheel axles and wheels are provided at the bottom of the fuselage 1, the wheel axles include a front wheel axle 111 and a rear wheel axle 112, the wheels include a front wheel 121 and a rear wheel 122, both ends of the front wheel axle 111 are rotatably connected to a front wheel 121, and both ends of the rear wheel axle 112 are rotatably connected to a rear wheel 122, so that the harvester toy can run smoothly on a horizontal plane through four wheels.

[0037] See Figure 4 As shown, the light and shadow projection device 2 includes a pattern drum 21 and a light source 22, wherein the pattern drum 21 is rotatably arranged on the body 1, and the rolling surface of the pattern drum 21 is provided with a plurality of light-transmitting portions 211 corresponding to the cross-sectional shapes of various fruits 100, for example, light-transmitting portions 211 having the same cross-sectional shapes as bananas, oranges, apples, peaches, wheat, and corn. Of course, light-transmitting portions 211 having the same cross-sectional shapes as other types of fruits 100 can also be provided on the pattern drum 21, and the present invention is not limited to the types of fruits 100 exemplified above. One implementation of this embodiment is that the light-transmitting portion 211 is a through hole that is arranged through the pattern drum 21, so as to present a through hole with the shapes of various fruits 100 on the pattern drum 21. During the processing, punching holes on the pattern drum 21 to make through holes is simpler and less costly than other processes. The light source 22 is arranged in the pattern drum 21. When the pattern drum 21 rolls, the light emitted by the light source 22 can be projected onto a horizontal plane (the ground or a table top) through the light-transmitting portion 211, so that a variety of projection patterns of fruits 100 can be presented on the horizontal plane, creating a realistic scene of harvesting fruits 100 for people, bringing vivid and interesting visual and sensory experiences to children, and increasing the fun of playing.

[0038] Furthermore, a transparent member 23 is attached to the inner wall of the pattern roller 21. The transparent member 23 may be a plastic film, glass or transparent resin. The transparent member 23 allows the light emitted by the light source 22 to more effectively pass through the light-transmitting portion 211, thereby improving the brightness and clarity of the projection effect. Moreover, the setting of the transparent member 23 can effectively isolate the light source 22 from the external environment, thereby preventing dust, dirt or other objects from polluting and damaging the light source 22, thereby ensuring the service life and durability of the light source 22. In addition, in other embodiments, the staff may design the transparent member 23 into a specific shape or surface texture to help evenly scatter the light, reduce shadows and concentrated light spots, thereby improving the consistency and effect of the projection, and bringing a better visual experience to the user.

[0039] Preferably, in this embodiment, the light source 22 is an LED color-changing lamp. When the pattern drum 21 rolls, the light effect of the fruit 100 will show a dynamic effect of color change, thereby providing users with more novel and interesting play content and further enhancing the appeal to children.

[0040] Specifically, in this embodiment, the light and shadow projection device 2 also includes a power transmission component 24, and the pattern roller 21 is connected to the front wheel shaft 111 of the fuselage 1 through the power transmission component 24, so that when the child pushes the harvester toy to drive, the front wheel 121 will simultaneously drive the front wheel shaft 111 to rotate, and the front wheel shaft 111 will drive the pattern roller 21 to roll through the power transmission component 24, so that the dynamic changes of the pattern roller 21 can be seen. During the driving process of the harvester toy, the constantly changing fruit 100 pattern will be projected on the horizontal plane, which enhances the interactivity between the pattern roller 21 and the fuselage 1, so that children can participate in the generation of the fruit 100 pattern projection during the play process, and form a vivid visual effect, which enhances the attractiveness of the toy. Moreover, this setting can help children understand basic physical principles, such as power transmission, mechanical movement, etc., so that children can learn while playing, and have a good educational and entertaining effect.

[0041] One implementation method of this embodiment is: Figure 5 As shown, the power transmission assembly 24 includes a fourth transmission gear 241, a fifth transmission gear 242 and a sixth transmission gear 243, wherein the fourth transmission gear 241 is fixedly connected to the front wheel shaft 111 of the fuselage 1, so that the fourth transmission gear 241 rotates together with the front wheel 121, the fifth transmission gear 242 is meshedly connected to the fourth transmission gear 241, the sixth transmission gear 243 is meshedly connected to the fifth transmission gear 242, and the pattern roller 21 is fixedly connected to a fixed shaft that passes through the sixth transmission gear 243. Through the above arrangement, when the front wheel 121 rotates, the fourth transmission gear 241 will gradually transmit the force to the sixth transmission gear 243, and then the sixth transmission gear 243 drives the pattern roller 21 to rotate, and through the step-by-step meshing of the gears, the power can be efficiently transmitted from the fourth transmission gear 241 to the sixth transmission gear 243, the power transmission is more stable and smooth, and the harvester toy is more stable during use.

[0042] Optionally, in this embodiment, the light and shadow projection device 2 further includes a touch switch 25 and an electronic circuit board 26, wherein the touch switch 25 is arranged on the fuselage 1, and the electronic circuit board 26 is arranged in the pattern drum 21 and electrically connected to the touch switch 25. In addition, a driver IC is also arranged on the electronic circuit board 26, and the driver IC is electrically connected to the LED color-changing lamp. After pressing the touch switch 25 for the first time, the touch switch 25 sends a start signal to the electronic circuit board 26, and the electronic circuit board 26 activates the driver IC after receiving the signal, thereby controlling the LED color-changing lamp to work. The driver IC controls the flashing frequency and rhythm of the LED color-changing lamp by controlling the change of current or voltage, so that when the pattern drum 21 rolls, a colorful dynamic light effect such as flashing, color change and motion effect is displayed. These changes provide children with a more attractive visual and sensory experience. In addition, when the touch switch 25 is pressed again, the touch switch 25 will cut off the electrical connection with the electronic circuit board 26, stop the transmission of the signal, and thus turn off the LED color-changing light, so that the user can independently control the opening and closing of the LED color-changing light, and adjust the light and shadow effects according to the interests and needs of the children, thereby improving the interactivity and fun, and can also effectively extend the service life of the LED color-changing light and avoid unnecessary energy waste.

[0043] See Figure 4 and Figure 5 As shown, the fruit jumping device 3 provided in this embodiment includes a driving member 31 and a movable top plate 32, wherein the driving member 31 is connected to the movable top plate 32 by transmission, and the movable top plate 32 is connected to the fruit 100 located in the body 1 by transmission. When the harvester toy is driving, the driving member 31 can drive the movable top plate 32 to reciprocate in the vertical direction, so as to control the fruit 100 to jump up and down through the movable top plate 32.

[0044] It can be understood that, in this embodiment, Figure 5 As shown, the part of the fuselage 1 used to wrap and cover the fruit 100 is made of transparent or translucent materials, such as polycarbonate, acrylic, soft plastic, etc., so that the jumping fruit 100 in the fuselage 1 can be presented to the children in a visual manner, thereby presenting an interesting and cheerful scene for the children to simulate the storage process of the real fruit 100 after harvesting in the fuselage 1, so that the children can intuitively feel the dynamic changes of the fruit 100 during the harvesting process. This visual and dynamic effect can effectively stimulate children's interest in agriculture and nature, thereby further improving the playability and enhancing the educational value of combining education with entertainment.

[0045] Specifically, in this embodiment, a projection 321 is provided at the bottom of the movable top plate 32; the driving member 31 includes a power transmission assembly 311 and a claw wheel 312, wherein the power transmission assembly 311 is transmission-connected between the claw wheel 312 and the rear wheel shaft 112 of the fuselage 1, and a plurality of conical driving claws 3121 are arranged axially at intervals on the claw wheel 312, and a concave portion 3122 is formed between adjacent conical driving claws 3121. When the claw wheel 312 rotates, the conical surface of the conical driving claw 3121 will push the projection 321 at the bottom of the movable top plate 32 to move upward along the conical driving claw 3121 until the movable top plate 32 is pushed to the top of the conical driving claw 3121, and then the movable top plate 32 will continue to descend into the concave portion 3122 and prepare to contact the next conical driving claw 3121, thereby realizing another upward movement. In this reciprocating manner, the visual effect of the movable top plate 32 continuously pushing the fruit 100 to jump up and down can be achieved. Since the structure that drives the movable top plate 32 to move up and down in this embodiment is the claw wheel 312, and a plurality of conical driving claws 3121 are provided on the claw wheel 312, when the claw wheel 312 rotates one circle, the fruit 100 can be driven to jump up and down at least twice through the movable top plate 32. Compared with the cam, crankshaft or eccentric wheel commonly used in the prior art, the jumping frequency of the movable top plate 32 can be made higher, thereby being able to bring a richer and more vivid visual experience.

[0046] See Figure 4 As shown, the power transmission assembly 311 provided in this embodiment specifically includes a first transmission gear 3111, a second transmission gear 3112 and a third transmission gear 3113, wherein the first transmission gear 3111 is fixedly connected to the rear wheel axle 112 of the fuselage 1, so that the first transmission gear 3111 rotates together with the rear wheel axle 112 and the rear wheel 122, the second transmission gear 3112 is meshedly connected to the first transmission gear 3111, the third transmission gear 3113 is meshedly connected to the second transmission gear 3112, and the claw wheel 312 is fixedly connected to a fixed shaft that limits and passes through the third transmission gear 3113.

[0047] Through the above arrangement, when the rear wheel 122 rotates, the first transmission gear 3111 will transmit the rotational force to the third transmission gear 3113 step by step through the second transmission gear 3112, and then the claw wheel 312 will be driven to rotate through the third transmission gear 3113, and the claw wheel 312 will then drive the movable top plate 32 to move up and down. Since the rear wheel 122 transmits power to the claw wheel 312 through the step-by-step meshing of gears, the transmission efficiency of the rotational force of the rear wheel 122 can be guaranteed. When the rear wheel 122 starts to rotate, it can immediately push the fruit 100 to jump up and down through the movable top plate 32 that moves up and down. That is to say, when the harvester toy starts to move, the movable top plate 32 and the pattern roller 21 can be driven to rotate simultaneously through the rear wheels 122 and the front wheels 121 respectively, so that the light projection effect of the fruit 100 and the physical jumping effect of the fruit 100 can be achieved at the same time, which can more accurately reflect the crop harvesting scene, enhance children's immersion in the crop harvesting process, and thus help children better understand the operation of a real agricultural harvester, which has a more profound educational significance.

[0048] Preferably, in this embodiment, four conical driving claws 3121 are evenly spaced along the circumferential direction on the outer periphery of the claw wheel 312, so as to achieve a balance between the jumping frequency of the fruit 100 and the mechanical stability, so that the jumping frequency is not too frequent to cause unnatural effects, nor too slow to lack sufficient visual impact.

[0049] Furthermore, the portion where the protrusion 321 contacts the claw wheel 312 is set as an arc-shaped contact surface 3211, so that the transmission effect between the movable top plate 32 and the conical driving claw 3121 can be more stable and smooth, avoiding the phenomenon of jamming when the conical driving claw 3121 pushes the movable top plate 32, thereby ensuring the continuity of the up and down movement of the movable top plate 32.

[0050] Further, see Figure 6 As shown, a guide limit shaft 13 is extended in the horizontal direction in the fuselage 1, and a guide groove 3212 is provided in the vertical direction of the movable top plate 32. In one implementation of this embodiment, the guide groove 3212 is provided on the surface of the protrusion 321, and the guide limit shaft 13 is relatively movably provided in the guide groove 3212. Due to the guiding effect of the guide limit shaft 13 and the guide groove 3212, the movable top plate 32 will accurately move up and down along the vertical direction when being pushed by the conical driving claw 3121, and will not be deflected to the left or right, thereby ensuring the effect of the movable top plate 32 pushing the fruit 100.

[0051] In this embodiment, the top of the movable top plate 32 is further provided with a protrusion 322. The provision of the protrusion 322 can form an uneven surface on the top of the movable top plate 32, so that when pushing the fruit 100, the height of the fruit 100 lifted by the protrusion 322 can be made higher. This method of lifting each fruit 100 to a different height can make the final bouncing scene more natural and layered, rather than a single, monotonous jump, which not only makes the bouncing effect more colorful, but also further enhances the viewing experience, embodies a staggered visual effect, and thus greatly enhances the sensory experience of the harvester toy.

[0052] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A harvester toy, characterized in that: include: Body (1); A light and shadow projection device (2), the light and shadow projection device (2) comprising a pattern drum (21) and a light source (22), the pattern drum (21) being rotatably arranged on the machine body (1), the rolling surface of the pattern drum (21) being provided with a plurality of light-transmitting portions (211) corresponding to the cross-sectional shapes of a plurality of fruits (100), the light source (22) being arranged in the pattern drum (21), and the light emitted by the light source (22) being able to pass through the light-transmitting portions (211) and projected onto a horizontal plane; A fruit jumping device (3), the fruit jumping device (3) comprising a driving member (31) and a movable top plate (32), the driving member (31) being transmission-connected to the movable top plate (32), the movable top plate (32) being transmission-connected to the fruit (100) located in the machine body (1), and when the harvester toy is traveling, the driving member (31) can drive the movable top plate (32) to reciprocate in a vertical direction, so as to control the fruit (100) to jump up and down through the movable top plate (32).

2. The harvester toy according to claim 1, characterized in that: A guide limit shaft (13) is provided in the body (1) extending in the horizontal direction, and a guide groove (3212) is provided in the movable top plate (32) in the vertical direction. The guide limit shaft (13) is relatively movably arranged in the guide groove (3212).

3. The harvester toy according to claim 1, characterized in that: A protrusion (322) is provided on the top of the movable top plate (32).

4. The harvester toy according to claim 1, characterized in that: The bottom of the movable top plate (32) is provided with a protrusion (321); The driving member (31) comprises a power transmission assembly (311) and a claw wheel (312); the power transmission assembly (311) is drivingly connected between the claw wheel (312) and the wheel axle of the fuselage (1); a plurality of conical driving claws (3121) are arranged at intervals along the circumferential direction on the claw wheel (312); a concave portion (3122) is formed between adjacent conical driving claws (3121); when the claw wheel (312) rotates, the conical driving claws (3121) can push the movable top plate (32) to move up and down, so that the protrusion (321) is sequentially connected to the conical driving claws (3121) and the concave portion (3122) accordingly.

5. The harvester toy according to claim 4, characterized in that: The portion where the protrusion (321) contacts the claw wheel (312) is configured as an arc-shaped contact surface (3211).

6. The harvester toy according to claim 4, characterized in that: The power transmission assembly (311) comprises a first transmission gear (3111), a second transmission gear (3112) and a third transmission gear (3113); the first transmission gear (3111) is fixedly connected to the wheel shaft of the fuselage (1); the second transmission gear (3112) is meshedly connected to the first transmission gear (3111); the third transmission gear (3113) is meshedly connected to the second transmission gear (3112); and the claw wheel (312) is fixedly connected to a fixed shaft that passes through the third transmission gear (3113) in a limited manner.

7. The harvester toy according to claim 1, characterized in that: The light and shadow projection device (2) further comprises a power transmission component (24), and the pattern roller (21) is connected to the wheel axle of the fuselage (1) through the power transmission component (24).

8. The harvester toy according to claim 7, characterized in that: The power transmission assembly (24) comprises a fourth transmission gear (241), a fifth transmission gear (242) and a sixth transmission gear (243); the fourth transmission gear (241) is fixedly connected to the wheel shaft of the fuselage (1); the fifth transmission gear (242) is meshedly connected to the fourth transmission gear (241); the sixth transmission gear (243) is meshedly connected to the fifth transmission gear (242); and the pattern roller (21) is fixedly connected to a fixed shaft that passes through the sixth transmission gear (243).

9. The harvester toy according to claim 1, characterized in that: A transparent piece (23) is attached to the inner wall surface of the pattern roller (21).

10. The harvester toy according to claim 1, characterized in that: The light and shadow projection device (2) further comprises a touch switch (25) and an electronic circuit board (26); the touch switch (25) is arranged on the body (1); the electronic circuit board (26) is arranged in the pattern roller (21) and is electrically connected to the touch switch (25); a driving IC is arranged on the electronic circuit board (26), and the driving IC is electrically connected to the light source (22).

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