A snow-throwing tube structure and a snow-throwing robot

Abstract

This utility model relates to the field of snow-throwing machine technology, and more particularly to a snow-throwing tube structure and a snow-throwing robot. The snow-throwing tube structure includes a tube body, a guide shell, a rotary drive assembly, an outer volute cover, and an inner volute cover. The guide shell is rotatably connected to the tube body. The outer volute cover is mounted on the guide shell, and a first internal space is provided between the outer volute cover and the guide shell. The inner volute cover is mounted on the tube body, and a second internal space communicating with the first internal space is provided between the inner volute cover and the tube body. One end of the inner volute cover is slidably inserted into the first internal space. The rotary drive assembly is mounted on the tube body, located in the first and second internal spaces, and connected to the guide shell, for driving the guide shell to rotate relative to the tube body. In this utility model, the rotary drive assembly and other components are always located in the sealed first and second internal spaces, avoiding interference from the external environment. The inner and outer volute covers also provide insulation for the rotary drive assembly.

Description

Technical Field

[0001] This utility model relates to the field of snow-throwing machine technology, and in particular to a snow-throwing tube structure and a snow-throwing robot. Background Technology

[0002] A snow blower is a device used to remove snow. It is typically used for large-scale snow removal operations, especially in places such as airports, industrial parks, and city streets, where it can efficiently clear large amounts of snow.

[0003] A snow blower includes a self-moving device, a snow-shoveling mechanism, and a snow-throwing mechanism. Both the snow-shoveling and snow-throwing mechanisms are installed on the self-moving device. The snow-shoveling mechanism can clear snow from the ground and lawns and transport it to the snow-throwing mechanism, which can then throw the snow into a specific snow-filling area.

[0004] A snow-throwing mechanism typically includes a cylinder, a rotary drive, and a guide shell rotatably connected to the cylinder. The rotary drive can drive the guide shell to rotate relative to the cylinder in order to adjust the snow-throwing angle of the snow-throwing mechanism.

[0005] To protect the rotary drive components, a housing is usually installed around them for frost, water, and snow protection. However, the housings in the prior art have the following problems: (1) Serious rotational interference problem: The outer shell structure lacks linkage design with the guide shell, which is prone to interference with the surrounding structure when the guide shell rotates, causing rotational blockage or structural damage; (2) High risk of freezing by ice and snow: After the snow water freezes, it may cause the components of the outer shell to jam, affecting normal adjustment. Summary of the Invention

[0006] This utility model provides a snow-throwing tube structure and a snow-throwing robot to solve the technical problems of serious rotational interference and high risk of ice and snow freezing in the outer shell of the rotating drive component in the prior art.

[0007] An embodiment of this utility model provides a snow-throwing tube structure, including a tube body, a guide shell, a rotary drive assembly, an outer volute cover, and an inner volute cover, wherein the guide shell is rotatably connected to the tube body; The outer volute cover is mounted on the guide shell, and a first internal space is provided between the outer volute cover and the guide shell; The inner volute cover is installed on the cylinder, and a second internal space communicating with the first internal space is provided between the inner volute cover and the cylinder. One end of the inner volute cover is slidably inserted into the first internal space. The rotary drive assembly is mounted on the cylinder and located in the first internal space and the second internal space. The drive end of the rotary drive assembly is connected to the guide shell and is used to drive the guide shell to rotate relative to the cylinder and adjust the depth of the inner volute cover inserted into the first internal space.

[0008] Optionally, the snow-throwing tube structure further includes a support frame, the support frame including a base plate and a first side plate connected to the base plate; The support frame is located in the second internal space, the bottom plate is mounted on the cylinder, and the rotation drive assembly is mounted on the first side plate; The inner volute cover is provided with a junction box that communicates with the second internal space at one end away from the outer volute cover. The junction box is provided with a first notch, which is used to lead out the wire harness that is electrically connected to the rotary drive assembly.

[0009] Optionally, the support frame further includes a second side plate connected to the base plate, wherein the first side plate and the second side plate are respectively located on adjacent sides of the base plate; A wire storage space is provided between the junction box and the second side plate, the wire storage space being used to accommodate the wire harness of the rotary drive assembly; The snow-throwing tube structure also includes a terminal fixing seat installed in the wire storage space; the terminal fixing seat is installed on the second side plate by a fixing pin, and the terminal fixing seat is provided with a wire outlet hole communicating with the wire storage space, the wire outlet hole is disposed opposite to the first notch, and the second side plate is provided with a second notch disposed opposite to the wire outlet hole; A terminal block is provided inside the outlet hole. One end of the terminal block extends into the second internal space through the first notch and the second notch, while the other end of the terminal block is located outside the wire storage space and is used for quick connection.

[0010] Optionally, the support frame further includes a third side plate; the third side plate is connected to the end of the bottom plate away from the first side plate and is connected to the inner wall of the inner volute cover; the inner volute cover is also provided with a first through hole communicating with the second internal space; The snow-throwing tube structure also includes a cover, which includes a cover cylinder portion disposed on the outer wall of the inner volute cover and blocking the first through hole.

[0011] Optionally, the cover further includes a sleeve portion that connects to the cover cylinder portion and is fitted onto the outer wall of the inner volute cover, wherein the radial cross section of the sleeve portion is an arc with a central angle of less than 180°.

[0012] Optionally, the snow-throwing tube structure further includes a mounting base installed on the outer wall of the tube and located in the second internal space, the mounting base having a second through hole and the first side plate having a third through hole; The rotary drive assembly includes a motor, a limiting block, a drive shaft, and a rocker arm. The limiting block is provided with a plug-in hole. The output shaft of the motor passes through the third through hole and the second through hole and is connected to the limiting block. The drive shaft is plugged into the plug-in hole and is rotatably connected to the rocker arm. The rocker arm serves as the driving end of the rotary drive assembly, and the end of the rocker arm away from the drive shaft is rotatably connected to the guide housing.

[0013] Optionally, the limiting block is provided with a first limiting part and a second limiting part, and the mounting base is provided with a third limiting part; the first limiting part and the second limiting part are both disposed opposite to the third limiting part, and are used to limit the rotation angle of the limiting block relative to the mounting base.

[0014] Optionally, the snow-throwing tube structure further includes a sensor mounted on the limiting block, and a first sensor and a second sensor both mounted on the mounting base; the sensor is used to detect the rotation angle of the limiting block through the first sensor or the second sensor.

[0015] Optionally, the support frame further includes a fourth side plate, a first connecting column, and a second connecting column; the fourth side plate is connected to the side of the base plate away from the second side plate and is bent toward the end away from the second side plate; The guide shell is rotatably connected to the cylinder via a hinge, the hinge comprising a first leaf plate and a second leaf plate rotatably connected. The first connecting post passes through the inner volute cover and the mounting base in sequence and is then fixedly connected to the first side plate. The second connecting post passes through the inner volute cover and the fourth side plate in sequence and is then fixedly connected to the first blade plate. The second blade plate is connected to the inner wall of the guide shell.

[0016] Another embodiment of the present invention provides a snow-throwing robot, including a self-moving device and the above-described snow-throwing tube structure, wherein the snow-throwing tube structure is disposed on the self-moving device.

[0017] In this invention, the outer volute cover is mounted on the guide shell, and a first internal space is provided between the outer volute cover and the guide shell; the inner volute cover is mounted on the cylinder, and a second internal space communicating with the first internal space is provided between the inner volute cover and the cylinder; one end of the inner volute cover is inserted into the first internal space. The rotary drive assembly can drive the guide shell to rotate relative to the cylinder, thereby adjusting the snow-throwing angle of the snow-throwing tube structure. Since one end of the inner volute cover is always inserted into the first internal space, the rotary drive assembly and other components are always located within the sealed first and second internal spaces, preventing external environmental interference. Furthermore, the inner and outer volute covers also provide insulation for the rotary drive assembly, facilitating the arrangement of heating wires, insulation cotton, and other components within the first and second internal spaces. Furthermore, the rotating plug-in connection between the inner and outer volute covers, with both adopting a volute structure, prevents jamming between them during relative transmission. Additionally, the inner volute cover is less likely to interfere with surrounding components during rotation, ensuring the stability of the snow-throwing tube structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the snow-throwing tube structure provided in one embodiment of the present invention when it is at its maximum elevation angle. Figure 2 This is a schematic diagram of the snow-throwing tube structure provided in one embodiment of the present invention when it is in the position of maximum depression angle; Figure 3 This is a partial exploded view of a snow-throwing tube structure provided in one embodiment of the present invention. Figure 1 ; Figure 4 This is a partial exploded view of a snow-throwing tube structure provided in one embodiment of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the rotary drive assembly and connecting parts in a snow-throwing tube structure provided in an embodiment of the present invention. Figure 1 ; Figure 6This is a schematic diagram of the rotary drive assembly and connecting parts in a snow-throwing tube structure provided in an embodiment of the present invention. Figure 2 ; Figure 7 yes Figure 6 Exploded view.

[0020] The reference numerals in the accompanying drawings are as follows: 1. Cylinder body; 2. Guide shell; 3. Rotary drive assembly; 31. Motor; 32. Limiting block; 321. First limiting part; 322. Second limiting part; 323. Sensor; 324. Plug-in hole; 33. Drive shaft; 34. Rocker arm; 4. Outer volute cover; 41. First internal space; 5. Inner volute cover; 51. Second internal space; 52. First notch; 53. Cable outlet hole; 6. Support frame; 61. Base plate; 62. First side plate; 621. First connecting column; 621. Third through hole; 63. Second side plate; 631. Second notch; 632. Fixing pin; 64. Third side plate; 65. Fourth side plate; 651. Second connecting column; 71. Junction box; 72. Terminal fixing seat; 73. Cover; 731. Cover cylinder part; 732. Sleeve part; 8. Mounting seat; 81. Second through hole; 82. First sensor; 83. Second sensor; 84. Third limiting part; 9. Connector. Detailed Implementation

[0021] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] like Figures 1 to 4 As shown, an embodiment of the present invention provides a snow-throwing tube structure, including a tube body 1, a guide shell 2, a rotary drive assembly 3, an outer volute cover 4, and an inner volute cover 5, wherein the guide shell 2 is rotatably connected to the tube body 1; The outer volute cover 4 is mounted on the guide shell 2, and a first internal space 41 is provided between the outer volute cover 4 and the guide shell 2; The inner volute cover 5 is installed on the cylinder 1. A second internal space 51 communicating with the first internal space 41 is provided between the inner volute cover 5 and the cylinder 1. One end (open end) of the inner volute cover 5 is slidably inserted into the first internal space 41. The rotary drive assembly 3 is mounted on the cylinder 1 and located in the first internal space 41 and the second internal space 51. It is connected to the guide shell 2 and is used to drive the guide shell 2 to rotate relative to the cylinder 1 and adjust the depth of the inner volute cover 5 inserted into the first internal space 41.

[0023] The outer volute cover 4 and the inner volute cover 5 are both volute-shaped. The rotary drive assembly 3 includes, but is not limited to, a motor. The guide shell 2 can be rotatably mounted on the cylinder 1 via a connector 9 (such as a hinge, a shaft, etc.). During the rotation of the guide shell 2, the first internal space 41 is always connected to the second internal space 51, and one end of the inner volute cover 5 is always inserted into the first internal space 41.

[0024] In this invention, the outer volute cover 4 is mounted on the guide shell 2, and a first internal space 41 is provided between the outer volute cover 4 and the guide shell 2; the inner volute cover 5 is mounted on the cylinder 1, and a second internal space 51 communicating with the first internal space 41 is provided between the inner volute cover 5 and the cylinder 1; one end of the inner volute cover 5 is inserted into the first internal space 41. The rotary drive assembly 3 can drive the guide shell 2 to rotate relative to the cylinder 1, thereby adjusting the snow-throwing angle of the snow-throwing tube structure. Since one end of the inner volute cover 5 is always inserted into the first internal space 41, the rotary drive assembly 3 and other components are always located in the sealed first internal space 41 and second internal space 51, preventing external environmental interference to the rotary drive assembly 3. Furthermore, the inner volute cover 5 and the outer volute cover 4 can also provide insulation for the rotary drive assembly 3, facilitating the arrangement of heating wires, insulation cotton, and other components in the first internal space 41 and second internal space 51. Furthermore, the rotating insertion of the inner volute cover 5 and the outer volute cover 4, with both adopting a volute structure, makes it less prone to jamming during relative transmission between the inner volute cover 5 and the outer volute cover 4. Additionally, the inner volute cover 5 is less likely to interfere with surrounding components during rotation, ensuring the stability of the snow-throwing tube structure.

[0025] In one embodiment, such as Figure 3 and Figure 4 As shown, the snow-throwing tube structure also includes a support frame 6, which includes a base plate 61 and a first side plate connected to the base plate 61; The base plate 61 is mounted on the cylinder 1, the support frame 6 is located in the second internal space 51, and the rotation drive assembly 3 is mounted on the first side plate 62. The inner volute cover 5 is provided with a junction box 71 that communicates with the second internal space 51 at one end away from the outer volute cover 4. The junction box 71 is provided with a first notch 52, which is used to lead out the wire harness that is electrically connected to the rotary drive assembly 3.

[0026] The first side plate 62 is perpendicular to the bottom plate 61, and the first side plate 62 and the bottom plate 61 are integrally formed parts; a flange structure for mounting the rotary drive assembly 3 can be provided on the first side plate 62.

[0027] In this embodiment, the support frame 6 can support the rotary drive assembly 3, and the junction box 71 has a wire harness that is electrically connected to the rotary drive assembly 3. The junction box 71 and the inner volute cover 5 are integrally formed to ensure sealing performance.

[0028] In one embodiment, such as Figures 3 to 7 As shown, the support frame 6 also includes a second side plate 63 connected to the base plate 61, and the first side plate 62 and the second side plate 63 are respectively located on adjacent two sides of the base plate 61; A wire storage space is provided between the inner wall of the junction box 71 and the second side plate 63, and the wire storage space is used to accommodate the wire harness of the rotary drive assembly 3; The snow-throwing tube structure also includes a terminal fixing seat 72 installed in the wire storage space; the terminal fixing seat 72 is installed on the second side plate 63 by a fixing pin 632, and the terminal fixing seat 72 is provided with a wire outlet hole 53 that communicates with the wire storage space and is disposed opposite to the first notch 52; the second side plate 63 is provided with a second notch 631 disposed opposite to the wire outlet hole 53. A terminal block is provided inside the outlet hole 53. One end of the terminal block extends into the second internal space 51 through the first notch 52 and the second notch 631. The other end of the terminal block is located outside the wire storage space and is used to connect or disconnect with an external plug. The terminal block has a quick plug-in / plug-out function.

[0029] The first side plate 62, the second side plate 63, and the bottom plate 61 are perpendicular to each other, and the first side plate 62, the second side plate 63, and the bottom plate 61 are integrally formed parts.

[0030] In this embodiment, multiple wire bundles in the wire storage space can be grouped together and fixed to the terminal fixing seat 72 via wiring terminals, and led out through the wire outlet 53, thereby facilitating the wiring of the snow-throwing tube structure. The terminal fixing seat 72 is also fixedly installed on the second side plate 63, so the support frame 6 can also support the terminal fixing seat 72; and the design of the terminal fixing seat 72 further improves the ease of wiring the rotary drive assembly 3.

[0031] In one embodiment, such as Figure 3 and Figure 4 As shown, the support frame 6 also includes a third side plate 64, which is connected to the end of the bottom plate 61 away from the first side plate 62 and is connected to the inner wall of the inner volute cover 5 (for fixing the inner volute cover 5 to the third side plate 64); the inner volute cover 5 is also provided with a first through hole communicating with the second internal space 51. The snow-throwing tube structure also includes a cover 73, which includes a cover cylinder 731 disposed on the outer wall of the inner volute cover 5 and blocking the first through hole. The cover cylinder 731 can be a round cover structure.

[0032] In one embodiment, such as Figure 4 As shown, the cover 73 also includes a sleeve portion 732 that connects to the cover cylinder portion 731; the sleeve portion 732 can be a semi-cylindrical structure (the radial section is an arc, and the central angle corresponding to the arc is less than 180°), and the sleeve portion 732 is sleeved on the outer wall of the inner volute cover 5 to further enhance the sealing performance.

[0033] In one embodiment, such as Figures 5 to 7 As shown, the snow-throwing tube structure also includes a mounting base 8 installed on the outer wall of the tube body 1 and located in the second internal space 51. The mounting base 8 is fixedly connected to the first side plate 62. The mounting base 8 is provided with a second through hole 81, and the first side plate 62 is provided with a third through hole 621. The rotary drive assembly 3 includes a motor 31, a limiting block 32, a transmission shaft 33, and a rocker arm 34. The limiting block 32 is provided with a insertion hole 324. The output shaft of the motor 31 passes through the third through hole 621 and the second through hole 81 and is connected to the limiting block 32. The transmission shaft 33 is inserted into the insertion hole 324 and is rotatably connected to the rocker arm 34. The end of the rocker arm 34 away from the transmission shaft 33 is rotatably connected to the guide shell 2.

[0034] Specifically, the motor 31 drives the limiting block 32 to rotate, the limiting block 32 drives the rocker arm 34 to rotate via the transmission shaft 33, and the rocker arm 34 drives the guide shell 2 to rotate relative to the cylinder 1, thereby achieving the technical effect of adjusting the snow throwing angle of the snow throwing tube structure.

[0035] In this embodiment, the rotary drive component 3 has a compact structure and occupies little space.

[0036] In one embodiment, such as Figures 5 to 7 As shown, the limiting block 32 is provided with a first limiting part 321 and a second limiting part 322, and the mounting base 8 is provided with a third limiting part 84; the first limiting part 321 and the second limiting part 322 are both arranged opposite to the third limiting part 84, and are used to limit the rotation angle of the limiting block 32 relative to the mounting base 8.

[0037] The first limiting part 321 and the second limiting part 322 can both be protrusions or limiting grooves, etc.; the third limiting part 84 can be a limiting post, etc.

[0038] Specifically, when the rotary drive assembly 3 drives the guide shell 2 to rotate around the first direction to the maximum elevation angle, the third limiting part abuts against the first limiting part 321; when the rotary drive assembly 3 drives the guide shell 2 to rotate around the second direction to the maximum depression angle, the third limiting part abuts against the second limiting part 322.

[0039] In this embodiment, the first limiting part 321, the second limiting part 322 and the third limiting part 84 can limit the maximum rotation angle of the guide shell 2 on the cylinder 1, thus ensuring the stability of the rotation of the guide shell 2 on the cylinder 1.

[0040] In one embodiment, such as Figure 7 As shown, the snow-throwing tube structure also includes a sensor 323 mounted on the limiting block 32, and a first sensor 82 and a second sensor 83 both mounted on the mounting base 8; the sensor 323 is used to detect the rotation angle of the limiting block 32 through the first sensor 82 or the second sensor 83.

[0041] The first sensor 82 and the second sensor 83 include, but are not limited to, Hall sensors, etc., and the sensor 323 includes, but is not limited to, magnets, etc.

[0042] Specifically, during the rotation of the guide shell 2 around the first direction, the first sensor 82 detects the sensor 323, and the rotation of the drive assembly 3 can decelerate. When the guide shell 2 rotates to the maximum elevation angle, the first limiting part 321 will not collide with the third limiting part 84. During the rotation of the guide shell 2 around the second direction, the second sensor 83 detects the sensor 323, and the rotation of the drive assembly 3 can decelerate. When the guide shell 2 rotates to the maximum depression angle, the second limiting part 322 will not collide with the third limiting part 84.

[0043] In this embodiment, the design of the sensor 323, the first sensor 82, and the second sensor 83 further ensures the stability of the guide shell 2 rotating on the cylinder 1.

[0044] In one embodiment, such as Figures 3 to 7 As shown, the support frame 6 also includes a fourth side plate 65, a first connecting column 621, and a second connecting column 651; the fourth side plate 65 is connected to the side of the bottom plate 61 away from the second side plate 63, and is bent toward the end away from the second side plate 63. The snow-throwing tube structure also includes a connector 9, which is a hinge, and the hinge includes a first leaf plate and a second leaf plate that are rotatably connected. The first connecting post 621 passes through the inner volute cover 5 and the mounting base 8 in sequence and is fixedly connected to the first side plate 62. The second connecting post 651 passes through the inner volute cover 5 and the fourth side plate 65 in sequence and is fixedly connected to the first blade plate. The second blade plate is connected to the inner wall of the guide shell 2.

[0045] In this embodiment, the first leaf plate of the hinge connects the fourth side plate 65 and the inner volute cover 5, and the second leaf plate of the hinge connects to the inner wall of the guide shell 2, ensuring the stability of the hinge installed between the guide shell 2 and the cylinder 1. The first connecting post 621 and the second connecting post 651 are used to ensure the stability of the inner volute cover 5.

[0046] Another embodiment of this utility model provides a snow-throwing robot, including a self-moving device and the aforementioned snow-throwing tube structure mounted on the self-moving device. The self-moving device refers to a chassis platform with an independent power system and mobility, used to carry and drive the snow-throwing device to move and operate on the ground. Its form includes wheeled, tracked, or other controllable moving mechanisms, and it can realize manual or automatic operation functions.

[0047] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A snow thrower structure, characterized by, It includes a cylindrical body, a guide shell, a rotary drive assembly, an outer volute cover, and an inner volute cover, wherein the guide shell is rotatably connected to the cylindrical body; The outer volute cover is mounted on the guide shell, and a first internal space is provided between the outer volute cover and the guide shell; The inner volute cover is installed on the cylinder, and a second internal space communicating with the first internal space is provided between the inner volute cover and the cylinder. One end of the inner volute cover is slidably inserted into the first internal space. The rotary drive assembly is mounted on the cylinder and located in the first internal space and the second internal space. The drive end of the rotary drive assembly is connected to the guide shell and is used to drive the guide shell to rotate relative to the cylinder and adjust the depth of the inner volute cover inserted into the first internal space.

2. The snow throwing tube structure according to claim 1, wherein The snow-throwing tube structure also includes a support frame, which includes a base plate and a first side plate connected to the base plate; The support frame is located in the second internal space, the bottom plate is mounted on the cylinder, and the rotation drive assembly is mounted on the first side plate; The inner volute cover is provided with a junction box that communicates with the second internal space at one end away from the outer volute cover. The junction box is provided with a first notch, which is used to lead out the wire harness that is electrically connected to the rotary drive assembly.

3. The snow throwing tube structure according to claim 2, wherein The support frame also includes a second side plate connected to the base plate, wherein the first side plate and the second side plate are located on adjacent sides of the base plate, respectively. A wire storage space is provided between the inner wall of the junction box and the second side plate, and the wire storage space is used to accommodate the wire harness of the rotary drive assembly; The snow-throwing tube structure also includes a terminal fixing seat installed in the wire storage space; the terminal fixing seat is installed on the second side plate by a fixing pin, and the terminal fixing seat is provided with a wire outlet hole communicating with the wire storage space, the wire outlet hole is disposed opposite to the first notch, and the second side plate is provided with a second notch disposed opposite to the wire outlet hole; A terminal block is provided inside the outlet hole. One end of the terminal block extends into the second internal space through the first notch and the second notch, while the other end of the terminal block is located outside the wire storage space and is used for quick connection.

4. The snow throwing tube structure according to claim 3, wherein The support frame also includes a third side plate; the third side plate is connected to the end of the bottom plate away from the first side plate and is connected to the inner wall of the inner volute cover; the inner volute cover is also provided with a first through hole communicating with the second internal space; The snow-throwing tube structure also includes a cover, which includes a cover cylinder portion disposed on the outer wall of the inner volute cover and blocking the first through hole.

5. The snow thrower structure of claim 4, wherein, The cover also includes a sleeve portion that connects to the cover cylinder portion and is fitted onto the outer wall of the inner volute cover, wherein the radial cross section of the sleeve portion is an arc with a central angle of less than 180°.

6. The snow thrower structure of claim 5, wherein, The snow-throwing tube structure also includes a mounting base installed on the outer wall of the tube and located in the second internal space. The mounting base is provided with a second through hole, and the first side plate is provided with a third through hole. The rotary drive assembly includes a motor, a limiting block, a drive shaft, and a rocker arm. The limiting block is provided with a plug-in hole. The output shaft of the motor passes through the third through hole and the second through hole and is connected to the limiting block. The drive shaft is plugged into the plug-in hole and is rotatably connected to the rocker arm. The rocker arm serves as the driving end of the rotary drive assembly, and the end of the rocker arm away from the drive shaft is rotatably connected to the guide housing.

7. The snow thrower structure of claim 6, wherein, The limiting block is provided with a first limiting part and a second limiting part, and the mounting base is provided with a third limiting part; the first limiting part and the second limiting part are both arranged opposite to the third limiting part, and are used to limit the rotation angle of the limiting block relative to the mounting base.

8. The snow thrower structure of claim 7, wherein, The snow-throwing tube structure also includes a sensor mounted on the limiting block, and a first sensor and a second sensor both mounted on the mounting base; the sensor is used to detect the rotation angle of the limiting block through the first sensor or the second sensor.

9. The snow throwing tube structure according to claim 6, wherein The support frame also includes a fourth side plate, a first connecting column, and a second connecting column; the fourth side plate is connected to the side of the base plate away from the second side plate, and is bent toward the end away from the second side plate; The guide shell is rotatably connected to the cylinder via a hinge, the hinge comprising a first leaf plate and a second leaf plate rotatably connected. The first connecting post passes through the inner volute cover and the mounting base in sequence and is then fixedly connected to the first side plate. The second connecting post passes through the inner volute cover and the fourth side plate in sequence and is then fixedly connected to the first blade plate. The second blade plate is connected to the inner wall of the guide shell.

10. A snow throwing robot, characterized in that, It includes a self-moving device and a snow-throwing tube structure as described in any one of claims 1 to 9, the snow-throwing tube structure being disposed on the self-moving device.

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