Projection robot

Abstract

The utility model relates to the technical field of household appliances, and discloses a projection robot, which comprises a spherical shell with an inner cavity, a first opening and a second opening, the first opening and the second opening are oppositely arranged, and a driving wheel is arranged at the bottom of the shell; the projection assembly is located in the inner cavity and arranged on the shell in a pitching rotation mode; the inner shell is located in the inner cavity, the inner shell and the end, facing the first opening, of the projection assembly are fixed so that the inner shell can rotate in a pitching mode along with the projection assembly, and in the process that the inner shell rotates in the pitching mode along with the projection assembly, the projection of the inner shell on the outer shell covers the first opening; the inner shell is provided with a projection hole, and the projection hole faces the first opening for projection of the projection assembly out of the inner shell; the surface shell is detachably connected to the second opening; the display screen is arranged on the side, facing the inner cavity, of the face shell and can be viewed from the side, away from the inner cavity, of the face shell. The utility model provides a projection robot. The maintenance and assembly difficulty of the projection robot is low.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, and in particular to a projection robot. Background Technology

[0002] To enhance the interactivity of projection robots, they typically feature a display screen on their "front" side. This screen displays facial expressions and allows for video interaction with the user. When the robot projects, its "front" side faces away from the projection direction, enabling the user to interact with the screen while viewing the projected content.

[0003] However, the display screen of existing projection robots is usually set inside the robot's shell. When repairing or assembling the display screen, the entire shell needs to be disassembled and reassembled, making the repair and assembly of projection robots quite difficult. Utility Model Content

[0004] This application discloses a projection robot, which is relatively easy to repair and assemble.

[0005] To achieve the above objectives, this application discloses a projection robot, comprising:

[0006] The outer shell is spherical and has an inner cavity. The outer shell has a first opening and a second opening. The inner cavity communicates with the first opening and the second opening. The first opening and the second opening are arranged opposite to each other. The bottom of the outer shell is provided with a drive wheel.

[0007] A projection assembly, located in the inner cavity and rotatably mounted on the outer shell;

[0008] An inner shell is located in the inner cavity. The inner shell is fixed to one end of the projection assembly facing the first opening so that the inner shell can rotate with the projection assembly. During the rotation of the inner shell with the projection assembly, the projection of the inner shell on the outer shell covers the first opening.

[0009] The inner shell has a projection hole facing the first opening for the projection assembly to project onto the outside of the inner shell.

[0010] A faceplate, wherein the faceplate is detachably connected to the second opening;

[0011] A display screen is located on the side of the faceplate facing the inner cavity and can be viewed from the side of the faceplate away from the inner cavity.

[0012] Drive wheels are located at the bottom of the outer shell, enabling the projection robot to move. The projection component is located within the inner cavity of the outer shell and can rotate in both directions. This allows the projection robot to move to different positions and project at different angles using the different projection directions of the projection component. Furthermore, the outer shell has a first opening. An inner shell located within the inner cavity is fixed to the projection component. The inner shell can rotate relative to the outer shell as the projection component rotates, allowing the projection component to project onto the outside of the inner shell in different directions through its projection holes. Simultaneously, as the inner shell rotates with the projection component, its projection onto the outer shell covers the first opening, preventing dust and other foreign objects from entering the inner cavity of the outer shell through the first opening. It also shields the projection component, preventing the user from seeing it through the first opening from outside the outer shell.

[0013] Furthermore, a second opening is formed through the outer shell, and the second opening is positioned opposite to the first opening. The faceplate is detachably connected to the second opening. A display screen is positioned on the side of the faceplate facing the cavity. The user can view the display screen from the side of the faceplate away from the cavity. That is, when the projection component projects outside the first opening, the direction in which the user views the projected content is generally the same as the direction of the projection. At this time, the user can simultaneously see the side of the second opening opposite the first opening on the outer shell, allowing interaction with the projection robot by viewing the content displayed on the screen from the side of the faceplate away from the cavity. Moreover, during assembly, the projection robot can be assembled by installing components located inside the cavity, such as the projection component, onto the outer shell. The inner shell covers the first opening as the projection component is installed, and then the faceplate is connected to the second opening, covering the second opening, resulting in a complete outer shell appearance. The assembly of the projection robot is relatively simple. For disassembly and maintenance, the faceplate can be removed from the second opening first. Especially when assembling or maintaining devices mounted on the faceplate (e.g., the display screen), only the faceplate needs to be assembled or disassembled from the outer shell, making the operation relatively simple.

[0014] In some embodiments of this application, the housing includes:

[0015] Top shell, the top shell having a first notch:

[0016] A bottom shell is connected below the top shell to make the outer shell spherical and to form the inner cavity between the bottom shell and the top shell. The bottom shell is provided with a second notch, and the second notch and the first notch are connected to form the first opening.

[0017] The projection component is mounted on the bottom shell and can be tilted and rotated.

[0018] The bottom shell is connected to the bottom of the top shell, and the top and bottom shells together form a spherical outer shell, creating an inner cavity between them. This allows for easy assembly of the projection robot. The projection components, inner shell, and other parts can be installed onto the bottom shell, and then connected to the top shell via a first notch in the top shell and a second notch in the bottom shell, forming a first opening. This simplifies the assembly of the projection robot. Furthermore, the first opening extends from the top shell to the bottom shell, increasing the projection coverage of the inner shell onto the outer shell, thereby increasing the pitch angle range of the projection components and the inner shell, resulting in a wider projection angle range for the projection components.

[0019] In some embodiments of this application, the outer shell is provided with a first sliding buckle, and the face shell is provided with a second sliding buckle. The second sliding buckle is used to rotate with the face shell relative to the outer shell to engage with the first sliding buckle.

[0020] By setting a first sliding buckle on the outer shell and a second sliding buckle on the front shell, and by rotating the front shell relative to the outer shell, the relative position of the second sliding buckle and the outer shell is changed, allowing the second sliding buckle to engage with the first sliding buckle. This enables a detachable connection between the front shell and the outer shell. Furthermore, the assembly and disassembly of the front shell and the outer shell can be achieved simply by rotating the front shell, making the operation relatively simple.

[0021] In some embodiments of this application, the housing includes:

[0022] Top shell, the top shell having a third notch:

[0023] A bottom shell is connected below the top shell to make the outer shell spherical and to form the inner cavity between the bottom shell and the top shell. The bottom shell is provided with a fourth notch, which is connected to the third notch to form the second opening.

[0024] The first decorative element is ring-shaped and located at the second opening. It is fixed to the top shell and the bottom shell. The first decorative element is provided with the first sliding buckle.

[0025] The projection component is mounted on the bottom shell and can be tilted and rotated.

[0026] The projector robot is assembled by connecting a bottom shell to the bottom of the top shell. The top and bottom shells together create a spherical outer shell, forming an inner cavity between them. This allows for easy assembly of the projection robot. Projection components, the inner shell, and other parts can be installed onto the bottom shell, and then connected to the top shell. A second opening is formed by connecting a third notch in the top shell and a fourth notch in the bottom shell. This simplifies the assembly process. Furthermore, the second opening extends from the top shell to the bottom shell, increasing the area of ​​the front shell on the outer shell. This allows for a larger front shell size to accommodate devices (e.g., a display screen), providing a wider range of screen sizes.

[0027] Furthermore, by utilizing a ring-shaped first decorative element located at the second opening, the first decorative element can fix the relative position between the top and bottom shells after assembly, preventing misalignment between the top and bottom shells before the projection robot completes overall assembly, which would affect further assembly. Moreover, considering the assembly error between the top and bottom shells, placing the first sliding buckle on the top and bottom shells could easily lead to misalignment of the first sliding buckle, resulting in the first sliding buckle failing to engage with the second sliding buckle. Therefore, by using the first decorative element to set the first sliding buckle, the position of the first sliding buckle on the first decorative element remains fixed and is unaffected by the assembly of the projection robot, ensuring that the second sliding buckle on the face shell engages with the first sliding buckle.

[0028] In some embodiments of this application, the first decorative element includes:

[0029] The frame portion is ring-shaped;

[0030] An extension portion extends from the inner peripheral edge of the frame portion toward the center of the annular shape, and the first sliding buckle is a buckle hole provided in the extension portion;

[0031] The second sliding buckle includes:

[0032] A cantilever, wherein the cantilever is disposed on the side of the faceplate facing the inner cavity;

[0033] A limiting protrusion is provided at one end of the cantilever facing the inner cavity;

[0034] The cantilever passes through the slot, and the limiting protrusion abuts against the portion of the extension located on one side of the slot to fix the faceplate to the first decorative piece.

[0035] By designing the first sliding buckle as a locking hole in the extension, the faceplate can be matched with the annular frame when assembled with the first decorative piece. Simultaneously, by utilizing the cantilever of the second sliding buckle passing through the locking hole, the faceplate can be rotated so that the limiting protrusion of the second sliding buckle abuts against the portion of the extension located on the locking hole side, thereby fixing the faceplate to the first decorative piece and achieving faceplate installation. Rotating the faceplate relative to the first decorative piece until the limiting protrusion aligns with the locking hole allows the cantilever and limiting protrusion to pass through the locking hole, thus separating the faceplate from the first decorative piece and achieving faceplate disassembly.

[0036] In some embodiments of this application, the faceplate includes:

[0037] The structural layer has a second sliding buckle on the side facing the inner cavity, and a first light-transmitting hole. The display screen is located on the side of the structural layer facing the inner cavity and is also facing the first light-transmitting hole.

[0038] An outer layer is attached to the side of the structural layer opposite to the inner cavity, and the outer layer is configured to be light-transmitting.

[0039] By utilizing a second sliding latch in the structural layer, which engages with the first sliding latch, a detachable connection between the structural layer and the outer shell can be achieved. This allows the outer layer, which is attached to the side of the structural layer facing away from the inner cavity, to be completely detached from the structural layer and installed onto the outer shell. Furthermore, the structural layer provides a mounting position for the display screen, with the display screen facing the first light-transmitting hole in the structural layer. This allows users to view the content displayed on the display screen through the light-transmitting outer layer and the first light-transmitting hole. Simultaneously, the outer layer enables a concealed design of the display screen, maintaining the integrity of the overall appearance.

[0040] In some embodiments of this application, the structural layer has a first planar portion and a first recessed portion on the side facing the inner cavity. The first recessed portion is recessed from the structural layer toward the direction close to the inner cavity to form a second planar portion. The second planar portion is disposed near the bottom of the outer shell relative to the first planar portion.

[0041] The first planar portion is provided with a second light-transmitting hole, and the second planar portion is provided with a third light-transmitting hole;

[0042] The outer layer has a third planar portion formed corresponding to the first planar portion, and the outer layer has a fourth planar portion formed corresponding to the second planar portion;

[0043] The projection robot includes:

[0044] A first distance sensor is disposed on the first flat portion and is positioned facing the second light-transmitting hole;

[0045] The second distance sensor is disposed on the second flat portion and is positioned facing the third light-transmitting hole.

[0046] By setting a first distance sensor on the first flat surface and a second distance sensor on the second flat surface, and utilizing a second and third light-transmitting aperture to avoid obstructing the first and second distance sensors respectively, the first and second distance sensors are not blocked by the structural layer. This allows light to be emitted and received through the light-transmitting outer layer, thus achieving the distance measurement function. Furthermore, by setting a third and fourth flat surface on the outer layer, the first and second distance sensors can avoid refraction and scattering of light when emitting and receiving light to achieve distance measurement, thereby improving the distance measurement accuracy of both sensors.

[0047] Furthermore, for the second distance sensor located near the bottom of the outer shell, the second plane portion is formed by the first recess to house the second distance sensor, which can minimize the distance of the second distance sensor from the bottom of the outer shell, making it easier for the second distance sensor to detect the driving plane on which the projection robot is placed.

[0048] In some embodiments of this application, the plurality of said sensors include:

[0049] The projection robot includes:

[0050] A first camera is located on the side of the structural layer facing the inner cavity;

[0051] The second camera is located on the side of the structural layer away from the outer layer, and is positioned relative to the first camera near the bottom of the outer shell.

[0052] The structural layer is provided with a fourth light-transmitting hole and a fifth light-transmitting hole respectively corresponding to the first camera and the second camera. The first camera and the second camera are respectively positioned facing the fourth light-transmitting hole and the fifth light-transmitting hole. The outer layer is provided with a sixth light-transmitting hole and a seventh light-transmitting hole. The sixth light-transmitting hole and the seventh light-transmitting hole are respectively connected to the fourth light-transmitting hole and the fifth light-transmitting hole.

[0053] The shell includes:

[0054] A first light-transmitting cover plate, which covers the sixth light-transmitting hole;

[0055] The second light-transmitting cover plate covers the seventh light-transmitting hole.

[0056] By placing a first camera and a second camera on the side of the structural layer facing the inner cavity, and utilizing a fourth light-transmitting hole, a sixth light-transmitting hole, and a first light-transmitting cover plate, the first camera can view the outside of the outer layer. Similarly, a fifth light-transmitting hole, a seventh light-transmitting hole, and a second light-transmitting cover plate allow the second camera to view the outside of the outer layer. Simultaneously, the first and second light-transmitting cover plates, working in conjunction with the outer layer, achieve a stealth design for both cameras, maintaining the integrity of the appearance while protecting them. Furthermore, by positioning the second and first cameras at different positions along the height of the projection robot within the structural layer, they can compensate for each other's captured images and be used to achieve different functions. For example, the first camera can be used to capture environmental images for mapping, while the second camera can be used for human-computer interaction.

[0057] In some embodiments of this application, the axis of rotation of the projection component relative to the housing in pitch rotation is approximately coincident with the horizontal center plane of the sphere;

[0058] The projection robot includes sensors, at least one of which is disposed on the face shell, and the power terminals of the sensors are disposed facing the horizontal center plane and electrically connected to the main control board of the projection assembly.

[0059] By aligning the axis of rotation of the projection component relative to the outer shell's pitch with the horizontal center plane of the spherical shape, the rotation path of the inner shell during pitch rotation matches the spherical shape of the outer shell, thus preventing interference between the inner and outer shells. Furthermore, by oriented the sensor's power terminals towards the horizontal center plane, the distance between the sensor's power terminals and the main control board of the projection component is reduced, facilitating the electrical connection wiring between the sensor's power terminals and the main control board.

[0060] In some embodiments of this application, the bottom of the housing is provided with casters, the diameter of which is smaller than that of the drive wheel. The casters are located at the bottom of the housing relative to the drive wheel and closer to the first opening, while the drive wheel is located at the bottom of the housing relative to the casters and closer to the second opening.

[0061] By positioning the omnidirectional wheels at the bottom of the outer shell, relative to the drive wheels and closer to the first opening, and the drive wheels at the bottom of the outer shell, relative to the omnidirectional wheels and closer to the second opening, the space near the first opening is larger than the space near the second opening. This allows for the use of the larger space within the outer shell to house the inner shell, which can be positioned as close as possible to the travel plane of the projection robot, while the outer shell can be positioned further away from the travel plane. Furthermore, without increasing the overall height of the projection robot, using large drive wheels in combination with small omnidirectional wheels increases driving efficiency during movement.

[0062] Compared with the prior art, this application has at least the following beneficial effects:

[0063] In this embodiment, a drive wheel is provided at the bottom of the outer shell, enabling the projection robot to move. Simultaneously, the projection component is located within the inner cavity of the outer shell and is rotatable within it. This allows the projection robot to move to different positions and project at different locations and angles by utilizing the different projection directions of the projection component. Furthermore, the outer shell has a first opening. An inner shell located within the inner cavity is fixed to the projection component. The inner shell can rotate relative to the outer shell as the projection component tilts, allowing the projection component to project onto the outside of the inner shell through its projection hole in different directions. During this rotation, the inner shell's projection onto the outer shell covers the first opening, preventing dust and other foreign objects from entering the inner cavity of the outer shell through the first opening and shielding the projection component from view by the user through the first opening.

[0064] Furthermore, a second opening is formed through the outer shell, and the second opening is positioned opposite to the first opening. The faceplate is detachably connected to the second opening. A display screen is positioned on the side of the faceplate facing the cavity. The user can view the display screen from the side of the faceplate away from the cavity. That is, when the projection component projects outside the first opening, the direction in which the user views the projected content is generally the same as the direction of the projection. At this time, the user can simultaneously see the side of the second opening opposite the first opening on the outer shell, allowing interaction with the projection robot by viewing the content displayed on the screen from the side of the faceplate away from the cavity. Moreover, during assembly, the projection robot can be assembled by installing components located inside the cavity, such as the projection component, onto the outer shell. The inner shell covers the first opening as the projection component is installed, and then the faceplate is connected to the second opening, covering the second opening, resulting in a complete outer shell appearance. The assembly of the projection robot is relatively simple. For disassembly and maintenance, the faceplate can be removed from the second opening first. Especially when assembling or maintaining devices mounted on the faceplate (e.g., the display screen), only the faceplate needs to be assembled or disassembled from the outer shell, making the operation relatively simple. Attached Figure Description

[0065] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0066] Figure 1 This is a schematic diagram of the structure of a projection robot provided in an embodiment of this application;

[0067] Figure 2 This is a structural schematic diagram of a projection robot (partial shell omitted) provided in an embodiment of this application;

[0068] Figure 3 This is a structural schematic diagram of a projection robot provided in an embodiment of this application from another perspective;

[0069] Figure 4 This is an exploded structural diagram of the inner shell and outer shell provided in an embodiment of this application;

[0070] Figure 5 This is a schematic diagram of the structure of a projection robot (the projection hole corresponds to different positions of the first opening) provided in an embodiment of this application;

[0071] Figure 6 This is an exploded structural diagram of a projection robot provided in an embodiment of this application;

[0072] Figure 7 This is a schematic diagram of the structure of a projection robot (with a face shell) provided in an embodiment of this application;

[0073] Figure 8 This is an exploded structural diagram of a projection robot (with a face shell) provided in an embodiment of this application;

[0074] Figure 9 This is an exploded structural diagram of a first decorative element and a face shell provided in an embodiment of this application;

[0075] Figure 10 This is an exploded structural diagram of a shell provided in an embodiment of this application;

[0076] Figure 11 This is an exploded structural diagram of a faceplate provided in an embodiment of this application from another perspective;

[0077] Figure 12 This is an exploded structural diagram of a faceplate (sensor omitted) provided in an embodiment of this application;

[0078] Figure 13 yes Figure 12 A magnified structural diagram of point I in the middle.

[0079] Explanation of main figure symbols

[0080] 1000. Projection robot;

[0081] 11. Outer shell; 11a. First opening; 11c. Second opening; 11d. First sliding latch;

[0082] 111, bottom shell; 111a, second notch; 111c, fourth notch;

[0083] 112. Top shell; 1121. First gap; 1124. Third gap;

[0084] 12. Inner shell; 12a. Projection hole;

[0085] 14. First decorative element; 14a. Fixing part; 141. Frame part; 142. Extension part;

[0086] 16. Faceplate; 16a. Second sliding buckle; 16aa. Cantilever; 16ab. Limiting protrusion; 161. Structural layer; 1611. First light-transmitting hole; 1612. Second light-transmitting hole; 1613. Third light-transmitting hole; 1614. Fourth light-transmitting hole; 1615. Fifth light-transmitting hole; 161a. First flat portion; 161b. First recessed portion; 161c. Second flat portion; 162. Outer layer; 1621. Sixth light-transmitting hole; 1622. Seventh light-transmitting hole; 162a. Third flat portion; 162b. Fourth flat portion; 163. First light-transmitting cover plate; 164. Second light-transmitting cover plate;

[0087] 20. Projection components;

[0088] 31. Drive wheel; 32. Caster wheel;

[0089] 48. Display screen;

[0090] 571. First distance sensor; 572. Second distance sensor; 58. First camera; 59. Second camera. Detailed Implementation

[0091] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0092] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0093] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0094] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0095] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0096] Before explaining the technical solution of this application, the inventive concept of this application will be explained first.

[0097] Figure 1 This is a structural schematic diagram of a projection robot 1000 provided in an embodiment of this application. Figure 2 This is a schematic diagram of the structure of a projection robot 1000 (with the outer shell 11 omitted) provided in an embodiment of this application.

[0098] With its human-centered design, the projection robot 1000 not only automatically adjusts the projection orientation of the projection component 20, but also features a "front face" with a display screen. This screen displays facial expressions to interact with the user and can also facilitate video interaction. However, existing projection robots typically have their displays housed inside the robot's casing. Repairing or assembling the display requires disassembling and reassembling the entire casing, making the repair and assembly of the projection robot quite difficult.

[0099] In summary, the projection robot 1000 in the related technology has the problem of high maintenance and assembly difficulty. Based on this, this application provides a projection robot 1000 to solve the above problems.

[0100] The technical solutions of some embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0101] In some embodiments, such as Figure 1 and Figure 2 As shown, the projection robot 1000 includes a shell 11, and the shell 11 forms an inner cavity.

[0102] The outer shell 11 can be spherical, square, or irregular in shape, etc., and this embodiment does not make specific limitations on it.

[0103] The outer shell 11 forms an inner cavity to provide installation space and protection for the internal structure and circuitry of the projection robot 1000.

[0104] In some embodiments, the projection robot 1000 includes a projection component 20, which is rotatably mounted on the housing 11.

[0105] By tilting and rotating the projection component 20 relative to the outer casing 11, the projection orientation of the projection component 20 can be adjusted, thereby enabling the projection component 20 to project onto different locations such as the driving plane (ground), wall, and ceiling.

[0106] In some embodiments, the projection robot 1000 includes a drive wheel 31 located at the bottom of the housing 11.

[0107] With the drive wheel 31 located at the bottom of the housing 11, the drive wheel 31 can move the projection robot 1000 to different positions, so that the projection component 20 can project in different places.

[0108] In some embodiments, the outer casing 11 is provided with a first opening 11a, which communicates with the inner cavity.

[0109] The first opening 11a refers to a window opened on the outer shell 11. The window connects the space outside the outer shell 11 with the inner cavity, so that the projection component 20 located in the inner cavity can project onto the space outside the outer shell 11 through the window.

[0110] In some embodiments, the outer shell 11 includes an inner shell 12 located in the inner cavity. The inner shell 12 is connected to one end of the projection assembly 20 facing the first opening 11a so that the inner shell 12 can be tilted and rotated with the projection assembly 20. During the tilting and rotation of the inner shell 12 with the projection assembly 20, the projection of the inner shell 12 on the outer shell 11 covers the first opening 11a. The inner shell 12 has a projection hole 12a for the projection assembly 20 to project onto the outside of the inner shell 12.

[0111] The outer shell 11 has a first opening 11a. The inner shell 12 located in the inner cavity is fixed to the projection component 20. The inner shell 12 can tilt and rotate relative to the outer shell 11 with the projection component 20 so that the projection component 20 projects to the outside of the inner shell 12 in different directions through the projection hole 12a. At the same time, during the tilt and rotation with the projection component 20, the inner shell 12 can cover the first opening 11a with the projection on the outer shell 11, which can prevent dust and other foreign objects from entering the inner cavity of the outer shell 11 through the first opening 11a, and can also block the projection component 20, preventing the user from seeing the projection component 20 through the first opening 11a from the outside of the outer shell 11.

[0112] That is, when the projection orientation of the projection component 20 is changed, the inner shell 12 and the outer shell 11 form a double-shell structure, the inner shell 12 tilts and rotates relative to the outer shell 11, while the outer shell 11 remains stationary.

[0113] In some embodiments, the outer casing 11 is spherical.

[0114] Since the outer shell 11 is spherical, the extension direction of the first opening 11a is the same as the circumferential direction of the spherical shape. When the projection component 20 tilts and rotates relative to the outer shell 11, it can avoid motion interference and better ensure that the inner shell 12 always blocks the first opening 11a.

[0115] In some embodiments, such as Figure 3 and Figure 4 As shown, the outer shell 11 includes a bottom shell 111, and a drive wheel 31 is provided at the bottom of the bottom shell 111. The projection component 20 is mounted on the bottom shell 111 and can be tilted and rotated.

[0116] Drive wheels 31 are installed at the bottom of the base shell 111, which can drive the base shell 111 to move, thereby moving the projection robot 1000 to different positions. The projection component 20 is mounted on the base shell 111 and can be tilted and rotated. The overall center of the projection robot 1000 is relatively close to the base shell 111, that is, the center of gravity is low, which can reduce the risk of the projection robot 1000 tipping over. The drive wheels 31 drive the projection robot 1000 to move more smoothly and reliably.

[0117] In some embodiments, the outer shell 11 includes a top shell 112 connected above the bottom shell 111, and an inner cavity is formed between the top shell 112 and the bottom shell 111.

[0118] By connecting the top shell 112 to the bottom shell 111, different internal structures and circuits of the projection robot 1000 can be installed on the top shell 112 and the bottom shell 111 respectively, and then the two are connected together. The assembly and disassembly of the projection robot 1000 is relatively easy.

[0119] like Figure 3 and Figure 5 As shown, this illustrates the process of the inner shell 12 tilting and rotating with the projection assembly 20. Figure 5 Can be regarded as Figure 3 The inner shell 12 rotates with the projection assembly 20 in a tilting motion, specifically an upward rotation. Figure 5 The projection hole 12a of the inner shell 12 is compared to Figure 3 Closer to the top of the top shell 112.

[0120] In some embodiments, such as Figure 6 As shown, the top shell 112 is provided with a first notch 1121, which extends to the edge of the top shell 112.

[0121] By providing a first notch 1121 in the top shell 112, and extending the first notch 1121 to the edge of the top shell 112, when the top shell 112 and the bottom shell 111 are closed and connected, the first notch 1121 can extend to the closing connection between the top shell 112 and the bottom shell 111.

[0122] In some embodiments, the bottom shell 111 is provided with a second notch 111a, which extends to the edge of the bottom shell 111.

[0123] By providing a second notch 111a in the bottom shell 111, and extending the second notch 111a to the edge of the bottom shell 111, when the top shell 112 is closed and connected to the bottom shell 111, the second notch 111a can extend to the closing connection between the bottom shell 111 and the top shell 112.

[0124] In some embodiments, the second notch 111a is used to enclose the first notch 1121 to form the first opening 11a.

[0125] The top shell 112 and the bottom shell 111 are closed together. At this time, the second notch 111a and the first notch 1121 can be closed to form the first opening 11a. The assembly of the top shell 112 and the bottom shell 111 is relatively easy.

[0126] In some embodiments, such as Figure 7 and Figure 8 As shown, the outer shell 11 is provided with a second opening 11c, which is connected to the inner cavity.

[0127] The second opening 11c refers to a window opened on the outer shell 11, which connects the space outside the outer shell 11 with the inner cavity.

[0128] In some embodiments, such as Figure 8 As shown, the outer casing 11 includes a faceplate 16, which is detachably connected to the second opening 11c. A display screen 48 is provided on the side of the faceplate 16 facing the inner cavity.

[0129] The projection robot 1000 is detachably connected to the second opening 11c via the face shell 16. During assembly, components such as the projection assembly 20 located within the cavity are installed onto the outer shell 11. The inner shell 12 covers the first opening 11a as the projection assembly 20 is installed. Then, the face shell 16 is connected to the second opening 11c, covering the second opening 11c, giving the outer shell 11 a complete appearance. The assembly of the projection robot 1000 is relatively simple. For disassembly and maintenance, the face shell 16 can be detached from the second opening 11c first. Especially when assembling or maintaining devices mounted on the face shell 16 (e.g., the display screen 48), only the face shell 16 needs to be assembled or disassembled from the outer shell 11, making the operation relatively simple.

[0130] The display screen 48 can be viewed from the side of the faceplate 16 away from the inner cavity. The display screen 48 can be used for facial expression display, video interaction, etc., but this embodiment does not specifically limit its use.

[0131] In some embodiments, the first opening 11a and the second opening 11c are arranged opposite to each other.

[0132] The second opening 11c is positioned opposite to the first opening 11a. The faceplate 16 is detachably connected to the second opening 11c. A display screen 48 is provided on the side of the faceplate 16 facing the cavity. The user can view the display screen 48 from the side of the faceplate 16 away from the cavity. That is, when the projection component 20 projects outside the first opening 11a, the direction in which the user views the projected content of the projection component 20 is usually roughly the same as the projection direction of the projection component 20. At this time, the user can simultaneously view the side of the second opening 11c opposite to the first opening 11a on the outer shell 11. Thus, the user can view the content displayed on the display screen 48 from the side of the faceplate 16 away from the cavity to interact with the projection robot 1000.

[0133] In some embodiments, such as Figure 7 and Figure 8 The top shell 112 is provided with a third notch 1124, which extends to the edge of the top shell 112.

[0134] By providing a third notch 1124 in the top shell 112, and extending the third notch 1124 to the edge of the top shell 112, when the top shell 112 and the bottom shell 111 are closed and connected, the third notch 1124 can extend to the closing connection between the top shell 112 and the bottom shell 111.

[0135] In some embodiments, the bottom shell 111 is provided with a fourth notch 111c, which extends to the edge of the bottom shell 111.

[0136] By providing a fourth notch 111c in the bottom shell 111, and extending the fourth notch 111c to the edge of the bottom shell 111, when the top shell 112 is closed and connected to the bottom shell 111, the fourth notch 111c can extend to the closing connection between the bottom shell 111 and the top shell 112.

[0137] In some embodiments, the fourth notch 111c is used to enclose the third notch 1124 to form the second opening 11c.

[0138] With the top shell 112 and bottom shell 111 covering each other, the fourth notch 111c and the third notch 1124 can be closed to form the second opening 11c, making the assembly of the top shell 112 and bottom shell 111 easier. Furthermore, the second opening 11c can extend from the top shell 112 to the bottom shell 111, increasing the area ratio of the front shell 16 on the outer shell 11, thus allowing the front shell 16 to have a larger size for mounting devices (e.g., display screen 48). For example, the screen size of the display screen 48 can have a wider range of options.

[0139] In some embodiments, as shown in Figure 9, the outer shell 11 is provided with a first sliding buckle 11d, and the face shell 16 is provided with a second sliding buckle 16a. The second sliding buckle 16a is used to rotate with the face shell 16 relative to the outer shell 11 to engage with the first sliding buckle 11d.

[0140] By providing a first sliding buckle 11d on the outer shell 11 and a second sliding buckle 16a on the front shell 16, the front shell 16 can be detachably connected to the top shell 112 and the bottom shell 111 through the engagement of the first sliding buckle 11d and the second sliding buckle 16a. Furthermore, the front shell 16 can be assembled and disassembled from the outer shell 11 simply by rotating it, making the operation relatively simple.

[0141] In some embodiments, such as Figure 10 and Figure 11 As shown, the faceplate 16 includes a structural layer 161, and a second sliding buckle 16a is provided on the side of the structural layer 161 facing the inner cavity.

[0142] The structural layer 161 is configured to provide an installation position for the display screen 48, and the second sliding buckle 16a of the structural layer 161 is fastened to the first sliding buckle 11d, thereby enabling a detachable connection between the structural layer 161 and the second opening 11c.

[0143] In some embodiments, the structural layer 161 is provided with a first light-transmitting hole 1611, and the display screen 48 is disposed on the side of the structural layer 161 facing the inner cavity and facing the first light-transmitting hole 1611.

[0144] With the display screen 48 facing the first light-transmitting hole 1611, the display screen 48 can be viewed from the side of the structural layer 161 away from the inner cavity.

[0145] In some embodiments, the faceplate 16 includes an outer layer 162 disposed on the side of the structural layer 161 opposite to the second opening 11c, and the outer layer 162 is configured to be light-transmitting.

[0146] By having the outer layer 162 disposed on the side of the structural layer 161 opposite to the second opening 11c, the outer layer 162 enables the display screen 48 to be designed to be invisible, maintaining the integrity of the appearance. Furthermore, by utilizing the light-transmitting outer layer 162, users can view the content displayed on the display screen 48 through the outer layer 162.

[0147] In some embodiments, such as Figures 9 to 11 As shown, the outer shell 11 includes a first decorative element 14, which is annular and located at the second opening 11c. It is fixed to the top shell 112 and the bottom shell 111. The first decorative element 14 is provided with a first sliding buckle 11d.

[0148] By having a first decorative element 14 arranged around the edge of the second opening 11c, the first decorative element 14 can visually separate the top shell 112 and bottom shell 111 from the front shell 16. Furthermore, by using the annular first decorative element 14 in the second opening 11c, the first decorative element 14 can fix the relative position of the top shell 112 and bottom shell 111 after assembly, preventing misalignment of the relative position between the top shell 112 and bottom shell 111 before the projection robot 1000 completes overall assembly, thus avoiding any impact on further assembly. Furthermore, considering the assembly error between the top shell 112 and the bottom shell 111, placing the first sliding buckle 11d on the top shell 112 and the bottom shell 111 could easily lead to the first sliding buckle 11d being misaligned, resulting in the first sliding buckle 11d being unable to cooperate with the second sliding buckle 16a. Therefore, the first sliding buckle 11d is set using the first decorative piece 14. The position of the first sliding buckle 11d on the first decorative piece 14 is fixed and unaffected by the assembly of the projection robot 1000, which can ensure that the second sliding buckle 16a of the face shell 16 cooperates with the first sliding buckle 11d.

[0149] In some embodiments, the first decorative element 14 includes a frame portion 141, which is ring-shaped.

[0150] In some embodiments, the first decorative member 14 includes an extension 142, which extends from the inner peripheral edge of the frame portion 141 toward the annular center, and the first sliding buckle 11d is a buckle hole provided in the extension 142.

[0151] In some embodiments, such as Figure 12 and Figure 13 As shown, the second sliding buckle 16a includes a cantilever 16aa and a limiting protrusion 16ab. The cantilever 16aa is located on the side of the face shell 16 facing the inner cavity, and the limiting protrusion 16ab is located at the end of the cantilever 16aa facing the inner cavity. The cantilever 16aa passes through the locking hole, and the limiting protrusion 16ab abuts against the portion of the extension 142 located on the side of the locking hole to fix the face shell 16 to the first decorative piece 14.

[0152] By designing the first sliding buckle 11d as a locking hole in the extension 142, the faceplate 16 can be matched with the annular frame 141 when assembled with the first decorative piece 14. Simultaneously, by utilizing the cantilever 16aa of the second sliding buckle 16a, which is positioned in the locking hole, the faceplate 16 can be rotated so that the limiting protrusion 16ab of the second sliding buckle 16a abuts against the portion of the extension 142 located on the locking hole side, thereby fixing the faceplate 16 to the first decorative piece 14 and installing the faceplate 16 onto the first decorative piece 14. Rotating the faceplate 16 relative to the first decorative piece 14 until the limiting protrusion 16ab aligns with the locking hole allows the cantilever 16aa and the limiting protrusion 16ab to pass through the locking hole, thus separating the faceplate 16 from the first decorative piece 14 and disassembling the faceplate 16.

[0153] In some embodiments, the first decorative member 14 is provided with a plurality of fixing parts 14a, which are distributed at intervals around the circumference of the first decorative member 14, and the plurality of fixing parts 14a are connected to the bottom shell 111 and the top shell 112.

[0154] The first decorative element 14 is connected to the bottom shell 111 and the top shell 112 by multiple fixing parts 14a, thereby realizing the assembly of the first decorative element 14 with the top shell 112 and the bottom shell 111. Furthermore, the multiple fixing parts 14a are distributed at intervals around the circumference of the first decorative element 14, resulting in high assembly strength and relatively balanced force distribution between the first decorative element 14 and the top shell 112 and the bottom shell 111.

[0155] In some embodiments, the axis of rotation of the projection component 20 relative to the housing 11 is approximately coincident with the horizontal center plane of the sphere.

[0156] Since the axis of rotation of the projection component 20 relative to the outer shell 11 is approximately coincident with the horizontal center plane of the sphere, the rotation path of the inner shell 12 when the projection component 20 rotates in pitch matches the spherical shape of the outer shell 11, thus avoiding interference between the inner shell 12 and the outer shell 11.

[0157] In this context, "approximately identical" should be understood as perfectly identical under ideal conditions. However, in reality, due to uncontrollable factors such as processing errors and assembly errors, there may be minor differences, which should also be included in the category of "approximately identical." In other embodiments, the term "approximately" should be understood in the same way.

[0158] In some embodiments, the projection robot 1000 includes sensors (not shown).

[0159] As described above, when the projection orientation of the projection component 20 is changed, the inner shell 12 and the outer shell 11 form a double-layer shell structure. The inner shell 12 rotates relative to the outer shell 11 in pitch, while the outer shell 11 remains stationary. When extending the autonomous movement function of the projection robot 1000, sensors can be installed on the outer shell 11, ensuring that the position of the sensor's spatial coordinate system remains unchanged. This ensures high detection accuracy for the sensors and avoids affecting the use of sensor-related functions of the projection robot 1000.

[0160] In some embodiments, at least one sensor is disposed on the side of the structural layer 161 opposite to the outer layer 162, the power terminals of the sensor are disposed facing the horizontal center plane, and are electrically connected to the main control board of the projection assembly 20.

[0161] By oriented the sensor's power terminals toward the horizontal center plane, the distance between the sensor's power terminals and the main control board of the projection assembly 20 can be reduced, thereby facilitating the electrical connection wiring between the sensor's power terminals and the main control board.

[0162] In some embodiments, the sensor includes a distance sensor, which enables distance measurement.

[0163] Among them, the distance sensor can be a TOF (Time of Flight) sensor.

[0164] In some embodiments, the distance sensor includes a first distance sensor 571 and a second distance sensor 572, which are disposed on the side of the structural layer 161 opposite to the outer layer 162.

[0165] The orientation of the first distance sensor 571 and the second distance sensor 572 and their height at the structural layer 161 (i.e., the distance from the bottom of the outer shell 11) can be different, so as to cooperate with each other to measure distance.

[0166] In some embodiments, such as Figure 10 and Figure 11 As shown, a first planar portion 161a is formed on the side of the structural layer 161 facing the inner cavity. The first planar portion 161a is provided with a second light-transmitting hole 1612. The outer layer 162 is formed with a third planar portion 162a corresponding to the first planar portion 161a. The first distance sensor 571 is disposed on the first planar portion 161a and is disposed facing the second light-transmitting hole 1612.

[0167] By providing a first distance sensor 571 on the first flat portion 161a and using a second light-transmitting hole 1612 to avoid obstructing the first distance sensor 571, the first distance sensor 571 is not blocked by the structural layer 161. This allows light to be emitted and received through the light-transmitting outer layer 162, thus achieving the distance measurement function. Furthermore, by providing a third flat portion 162a on the outer layer 162, when the first distance sensor 571 emits and receives light to achieve distance measurement, the third flat portion 162a can prevent light refraction and scattering when passing through the outer layer 162, thereby improving the distance measurement accuracy of the first distance sensor 571.

[0168] In some embodiments, such as Figure 12 and Figure 13 The structural layer 161 has a first recessed portion 161b on the side facing the inner cavity. The first recessed portion 161b is recessed from the structural layer 161 toward the direction close to the inner cavity to form a second planar portion 161c. The second planar portion 161c is provided with a third light-transmitting hole 1613. The outer layer 162 has a fourth planar portion 162b corresponding to the second planar portion 161c. The second distance sensor 572 is disposed on the second planar portion 161c and is disposed toward the third light-transmitting hole 1613.

[0169] By providing a second distance sensor 572 on the second planar portion 161c and using a third light-transmitting hole 1613 to avoid obstructing the second distance sensor 572, the second distance sensor 572 is not blocked by the structural layer 161. This allows light to be emitted and received through the light-transmitting outer layer 162, thus achieving the distance measurement function. Furthermore, by providing a fourth planar portion 162b on the outer layer 162, when the second distance sensor 572 emits and receives light to achieve distance measurement, the fourth planar portion 162b can prevent light refraction and scattering when passing through the outer layer 162, thereby improving the distance measurement accuracy of the second distance sensor 572.

[0170] In some embodiments, the second planar portion 161c is disposed near the bottom of the housing 11 relative to the first planar portion 161a.

[0171] By setting the second flat portion 161c relative to the first flat portion 161a near the bottom of the outer shell 11, and the second distance sensor 572 relative to the first distance sensor 571 near the bottom of the outer shell 11, the second flat portion 161c is formed by using the first recessed portion 161b to set the second distance sensor 572. This method can minimize the distance of the second distance sensor 572 from the bottom of the outer shell, making it easier for the second distance sensor 572 to detect the driving plane on which the projection robot is placed.

[0172] In some embodiments, such as Figure 10 and Figure 11 As shown, the sensor includes a first camera 58, which is located on the side of the structural layer 161 facing the inner cavity. The first camera 58 is used to capture a view outward from the outer layer 162.

[0173] By setting a first camera 58 on the side of the structural layer 161 facing the inner cavity, and using the first camera 58 to take a view outside the outer layer 162, the outer layer 162 can achieve the invisible design of the first camera 58 and maintain the integrity of the appearance.

[0174] In some embodiments, the sensor includes a second camera 59, which is disposed on the side of the structural layer 161 facing the inner cavity and is disposed relative to the first camera 58 near the bottom of the outer shell 11. The second camera 59 is used to capture a view outward from the outer shell 162.

[0175] By placing a second camera 59 on the side of the structural layer 161 facing the inner cavity, and using the second camera 59 to capture images from outside the outer layer 162, the outer layer 162 can achieve an invisible design for the first camera 58, maintaining the integrity of its appearance. Furthermore, by positioning the second camera 59 and the first camera 58 at different positions along the height of the projection robot 1000 on the structural layer 161, the second camera 59 and the first camera 58 can compensate for each other's captured images and can also be used to achieve different functions. For example, the first camera 58 can be used to capture environmental images for mapping, while the second camera 59 can be used for human-computer interaction.

[0176] In some embodiments, the structural layer 161 is provided with a fourth light-transmitting hole 1614 corresponding to the first camera 58, and the first camera is positioned facing the fourth light-transmitting hole 1614. The outer layer 162 is provided with a sixth light-transmitting hole 1621, which communicates with the fourth light-transmitting hole 1614. The faceplate 16 includes a first light-transmitting cover plate 163, which covers the sixth light-transmitting hole 1621.

[0177] The first camera 58 can be directed to the outside of the outer layer 162 for framing through the fourth light-transmitting hole 1614, the sixth light-transmitting hole 1621 and the first light-transmitting cover plate 163. At the same time, the first light-transmitting cover plate 163 and the outer layer 162 work together to achieve the invisible design of the first camera 58, maintaining the integrity of the appearance while protecting the first camera 58.

[0178] In some embodiments, the structural layer 161 is provided with a fifth light-transmitting hole 1615 corresponding to the second camera 59, and the second camera 59 is disposed facing the fifth light-transmitting hole 1615. The outer layer 162 is provided with a seventh light-transmitting hole 1622, which communicates with the fifth light-transmitting hole 1615. The faceplate 16 includes a second light-transmitting cover plate 164, which covers the seventh light-transmitting hole 1622.

[0179] The second camera 59 can be directed to the outside of the outer layer 162 for framing through the fifth light-transmitting hole 1615, the seventh light-transmitting hole 1622, and the second light-transmitting cover plate 164. At the same time, the second light-transmitting cover plate 164, together with the outer layer 162, can achieve the invisible design of the second camera 59, maintaining the integrity of the appearance while protecting the second camera 59.

[0180] In some embodiments, such as Figure 1 and Figure 3 As shown, the bottom of the outer casing 11 is provided with a caster wheel 32. The diameter of the caster wheel 32 is smaller than the diameter of the drive wheel 31. The caster wheel 32 is located at the bottom of the outer casing 11, closer to the first opening 11a relative to the drive wheel 31. The drive wheel 31 is located at the bottom of the outer casing 11, closer to the second opening 11c relative to the caster wheel 32.

[0181] With the omnidirectional wheels 32 positioned at the bottom of the outer shell 11, near the first opening 11a relative to the drive wheels 31, and the drive wheels 31 positioned at the bottom of the outer shell 11, near the second opening 11c relative to the omnidirectional wheels 32, the space near the first opening 11a of the outer shell 11 is larger than that near the second opening 11c. This allows the inner shell 12 to be positioned within the larger space of the outer shell 11, allowing it to be as close as possible to the driving plane of the projection robot 1000, while the outer shell 16 can be positioned further away from the driving plane. Furthermore, without increasing the overall height of the projection robot 1000, the use of large-sized drive wheels 31 in combination with small-sized omnidirectional wheels 32 increases the driving efficiency during movement.

[0182] The foregoing has provided a detailed description of a projection robot disclosed in this application. This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the projection robot and its core ideas in this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A projection robot, characterized in that, include: The outer shell is spherical and has an inner cavity. The outer shell has a first opening and a second opening. The inner cavity communicates with the first opening and the second opening. The first opening and the second opening are arranged opposite to each other. The bottom of the outer shell is provided with a drive wheel. A projection assembly, located in the inner cavity and rotatably mounted on the outer shell; An inner shell is located in the inner cavity. The inner shell is fixed to one end of the projection assembly facing the first opening so that the inner shell can tilt and rotate with the projection assembly. During the tilt and rotation of the inner shell with the projection assembly, the projection of the inner shell on the outer shell covers the first opening. The inner shell has a projection hole facing the first opening for the projection assembly to project onto the outside of the inner shell. A faceplate, wherein the faceplate is detachably connected to the second opening; A display screen is located on the side of the faceplate facing the inner cavity and can be viewed from the side of the faceplate away from the inner cavity.

2. The projection robot according to claim 1, characterized in that, The outer casing includes: Top shell, the top shell having a first notch: A bottom shell is connected below the top shell to make the outer shell spherical and to form the inner cavity between the bottom shell and the top shell. The bottom shell is provided with a second notch, and the second notch and the first notch are connected to form the first opening. The projection component is mounted on the bottom shell and can be tilted and rotated.

3. The projection robot of claim 1, wherein, The outer shell is provided with a first sliding buckle, and the face shell is provided with a second sliding buckle. The second sliding buckle is used to rotate with the face shell relative to the outer shell to engage with the first sliding buckle.

4. The projection robot according to claim 3, characterized in that, The outer casing includes: Top shell, the top shell having a third notch: A bottom shell is connected below the top shell to make the outer shell spherical and to form the inner cavity between the bottom shell and the top shell. The bottom shell is provided with a fourth notch, which is connected to the third notch to form the second opening. The first decorative element is ring-shaped and located at the second opening. It is fixed to the top shell and the bottom shell. The first decorative element is provided with the first sliding buckle. The projection component is mounted on the bottom shell and can be tilted and rotated.

5. The projection robot according to claim 4, characterized in that The first decorative element includes: The frame portion is ring-shaped; An extension portion extends from the inner peripheral edge of the frame portion toward the center of the annular shape, and the first sliding buckle is a buckle hole provided in the extension portion; The second sliding buckle includes: A cantilever, wherein the cantilever is disposed on the side of the faceplate facing the inner cavity; A limiting protrusion is provided at one end of the cantilever facing the inner cavity; The cantilever passes through the slot, and the limiting protrusion abuts against the portion of the extension located on one side of the slot to fix the faceplate to the first decorative piece.

6. The projection robot according to any one of claims 3 to 5, characterized in that, The shell includes: The structural layer has a second sliding buckle on the side facing the inner cavity, and a first light-transmitting hole. The display screen is located on the side of the structural layer facing the inner cavity and is oriented towards the first light-transmitting hole. An outer layer is attached to the side of the structural layer opposite to the inner cavity, and the outer layer is configured to be light-transmitting.

7. The projection robot according to claim 6, characterized in that, The structural layer has a first planar portion and a first recessed portion on the side facing the inner cavity. The first recessed portion is recessed from the structural layer toward the inner cavity to form a second planar portion. The second planar portion is disposed near the bottom of the outer shell relative to the first planar portion. The first planar portion is provided with a second light-transmitting hole, and the second planar portion is provided with a third light-transmitting hole; The outer layer has a third planar portion formed corresponding to the first planar portion, and the outer layer has a fourth planar portion formed corresponding to the second planar portion; The projection robot includes: A first distance sensor is disposed on the first flat portion and is positioned facing the second light-transmitting hole; The second distance sensor is disposed on the second flat portion and is positioned facing the third light-transmitting hole.

8. The projection robot according to claim 6, characterized in that, The projection robot includes: A first camera is located on the side of the structural layer facing the inner cavity; The second camera is located on the side of the structural layer away from the outer layer, and is positioned relative to the first camera near the bottom of the outer shell. The structural layer is provided with a fourth light-transmitting hole and a fifth light-transmitting hole respectively corresponding to the first camera and the second camera. The first camera and the second camera are respectively positioned facing the fourth light-transmitting hole and the fifth light-transmitting hole. The outer layer is provided with a sixth light-transmitting hole and a seventh light-transmitting hole. The sixth light-transmitting hole and the seventh light-transmitting hole are respectively connected to the fourth light-transmitting hole and the fifth light-transmitting hole. The shell includes: A first light-transmitting cover plate, which covers the sixth light-transmitting hole; The second light-transmitting cover plate covers the seventh light-transmitting hole.

9. The projection robot of claim 1, wherein, The axis of rotation of the projection component relative to the outer shell is approximately coincident with the horizontal center plane of the sphere; The projection robot includes sensors, at least one of which is disposed on the face shell, and the power terminals of the sensors are disposed facing the horizontal center plane and electrically connected to the main control board of the projection assembly.

10. The projection robot of claim 1, wherein, The bottom of the housing is provided with casters, the diameter of which is smaller than that of the drive wheel. The casters are located at the bottom of the housing relative to the drive wheel and closer to the first opening. The drive wheel is located at the bottom of the housing relative to the casters and closer to the second opening.

Images