Underwater propulsion device for vehicle and vehicle

Abstract

The utility model discloses an underwater propelling device for a vehicle and the vehicle. The underwater propelling device comprises a shell, a first propelling assembly, a first driving assembly and a second driving assembly. The first propelling assembly is movably arranged between a storage position and an extension position; the first driving assembly is connected to the first propelling assembly; the second driving assembly can drive the first propelling assembly to swing around the axis parallel to the second direction. Therefore, when the vehicle needs to sail in water, the first propelling assembly is moved to the extending position so as to enter the water, and at the moment, the vehicle can be driven to sail in the water; when the vehicle needs to run on the land, the first propelling assembly is moved to the storage position, and at the moment, the first propelling assembly can be protected and prevented from being collided by other objects on the peripheral face of the vehicle.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to an underwater propulsion device for a vehicle and the vehicle. Background Art

[0002] Existing amphibious vehicles include underwater propulsion devices. When the vehicle is sailing in the water, the underwater propulsion devices enter the water to propel the vehicle to sail in the water.

[0003] In this way, when the vehicle is traveling on land, the underwater propulsion device is located outside the vehicle body. During the vehicle's navigation, the underwater propulsion device may be hit by other objects around the vehicle and damaged.

[0004] To this end, the present invention provides an underwater propulsion device for a vehicle and a vehicle, so as to at least partially solve the above problems. Utility Model Content

[0005] The Summary of the Utility Model introduces a series of simplified concepts that will be further described in the Specific Examples. The Summary of the Utility Model does not intend to limit the key features and essential technical features of the claimed technical solution, nor does it intend to determine the scope of protection of the claimed technical solution.

[0006] In order to at least partially solve the above technical problems, the present invention provides an underwater propulsion device for a vehicle, the underwater propulsion device comprising:

[0007] a housing for connecting to a body of a vehicle, the housing having an interior space;

[0008] a first propulsion assembly, the first propulsion assembly being movably disposed along a first direction between a storage position stored in the interior space and an extended position extended outside the housing, wherein the first propulsion assembly in the extended position can be extended into water;

[0009] a first drive assembly connected to the first propulsion assembly to drive the first propulsion assembly to move between a stowed position and an extended position;

[0010] a second driving assembly, the second driving assembly being capable of driving the first propulsion assembly to swing about an axis parallel to the second direction;

[0011] At least one of the first drive assembly and the second drive assembly is connected to the housing, one of the first drive assembly and the second drive assembly is connected to the first propulsion assembly, and the first direction and the second direction intersect any two of the rotation axes of the first propulsion assembly.

[0012] According to the underwater propulsion device for vehicles of the present invention, when the vehicle needs to sail in the water, the first propulsion assembly is moved to the extended position to enter the water. At this time, the vehicle can be driven to sail in the water; when the vehicle needs to travel on land, the first propulsion assembly is moved to the storage position. At this time, the first propulsion assembly can be protected to prevent the first propulsion assembly from being collided with other objects around the vehicle. In addition, when the vehicle is sailing in the water, the rotation axis and the horizontal angle of the first propulsion assembly can be adjusted according to the navigation environment around the vehicle at that time, so that it can adapt to different navigation environments.

[0013] Optionally, the first driving assembly includes a first part and a second part, the first part is connected to the housing, the second part is movably connected to the first part along the first direction, and the second part is connected to the first propulsion assembly to drive the first propulsion assembly to move along the first direction.

[0014] Optionally, the first part is pivotally connected to the housing via a rotation shaft whose axial direction is parallel to the second direction, and the second drive assembly is connected to the housing and the first part to drive the first part to swing around the axis of the rotation shaft.

[0015] Optionally, the second drive assembly includes:

[0016] a first pusher;

[0017] a second pushing member connected to the first portion;

[0018] a pushing member including a third portion and a fourth portion, the third portion being connected to the housing, and the fourth portion being movably connected to the third portion along the second direction;

[0019] One of the first pushing member and the second pushing member has an inclined surface, which is inclined in the second direction and can contact the other of the first pushing member and the second pushing member. The fourth part is connected to the first pushing member to move the first pushing member along the second direction and acts on the second pushing member via the inclined surface, so that the second pushing member moves along the rotation axis of the first propulsion assembly, thereby causing the first propulsion assembly to swing.

[0020] Optionally, the second driving assembly further includes an elastic connecting member, and the second pushing member is connected to the first part via the elastic connecting member.

[0021] Optionally, the second pushing member includes a first connecting portion and a second connecting portion connected to each other, the first connecting portion has a first through hole, the second connecting portion has a second through hole, the first pushing member has a sloped surface, the first through hole is sleeved on the first pushing member so that the sloped surface can contact the inner wall surface of the first through hole, and the second through hole is sleeved on the first portion.

[0022] Optionally, the swing angle of the first propulsion assembly is α≤10°.

[0023] Optionally, when the underwater propulsion device is arranged on a vehicle, the swing angle range of the first propulsion assembly relative to the vertical direction is -5° to 5°.

[0024] Optionally, the underwater propulsion device for a vehicle further includes a second propulsion assembly, the second propulsion assembly is used to be connected to the vehicle body, and the rotation axis of the second propulsion assembly is parallel to the second direction.

[0025] Optionally, the second propulsion assembly is configured as a wheel of a vehicle, and the ribs of the hub of the wheel are configured as spiral blades.

[0026] Optionally, the shell has a gap, and the first propulsion assembly has a blocking cover. When the first propulsion assembly is located in the storage position, the blocking cover covers the gap.

[0027] The utility model also provides a vehicle, which includes the aforementioned underwater propulsion device.

[0028] According to the vehicle of the present invention, the vehicle includes the aforementioned underwater propulsion device. When the vehicle needs to sail in the water, the first propulsion assembly is moved to the extended position to enter the water. At this time, the vehicle can be driven to sail in the water; when the vehicle needs to travel on land, the first propulsion assembly is moved to the storage position. At this time, the first propulsion assembly can be protected to prevent the first propulsion assembly from being collided with other objects around the vehicle. In addition, when the vehicle is sailing in the water, the rotation axis and the horizontal angle of the first propulsion assembly can be adjusted according to the navigation environment around the vehicle at that time, so that it can adapt to different navigation environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to make the advantages of the present invention more easily understood, the present invention briefly described above will be described in more detail with reference to specific embodiments shown in the accompanying drawings. It will be understood that these drawings depict only typical embodiments of the present invention and are therefore not to be considered as limiting the scope of protection thereof. The accompanying drawings describe and explain the present invention with additional specificity and detail.

[0030] Figure 1 This is a perspective schematic diagram of an underwater propulsion device according to a preferred embodiment of the present invention being arranged on a vehicle body, wherein the first propulsion assembly is located outside the housing;

[0031] Figure 2 for Figure 1 A perspective view of an underwater propulsion device, wherein the first propulsion assembly is located within the housing;

[0032] Figure 3 for Figure 1 A front cross-sectional view of an underwater propulsion device, wherein the first propulsion assembly is located within the housing;

[0033] Figure 4 for Figure 1 A side cross-sectional view of the underwater propulsion device, wherein the first propulsion assembly is in an original swing position and is located within the housing;

[0034] Figure 5 for Figure 1 Exploded diagram of the underwater propulsion device;

[0035] Figure 6 for Figure 1 A schematic diagram of a propulsion member, a first propulsion member, and a second propulsion member of an underwater propulsion device connected together, wherein the dotted line shows a position where the first propulsion member pushes the second propulsion member to move away from the fixing plate; and

[0036] Figure 7 for Figure 1 Schematic diagram of the connection between the pushing member, the first pushing member and the second pushing member of the underwater propulsion device, wherein the dotted line shows the position where the first pushing member pushes the second pushing member to move close to the fixed plate.

[0037] Description of Reference Numerals

[0038] 100: Body 110: Shell

[0039] 111: Main body 112: Cover

[0040] 113: Internal space 114: Gap

[0041] 120: First propulsion assembly 121: Propeller

[0042] 122: Blocking cover 130: First drive assembly

[0043] 131: Part 1 132: Part 2

[0044] 140: Rotating shaft 150: Second drive assembly

[0045] 151: Pushing member 152: Part 3

[0046] 153: The fourth part 154: The first pusher

[0047] 156: Inclined surface 157: Second pusher

[0048] 158: First connection part 159: Second connection part

[0049] 160: First through hole 161: Second through hole

[0050] 162: First bevel 163: Second bevel

[0051] 170: Second propulsion assembly 171: Wheel hub

[0052] 172: Rib 180: Fixed plate DETAILED DESCRIPTION

[0053] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with embodiments of the present invention.

[0054] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be noted that the terms "upper", "lower" and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0055] In this document, ordinal numbers such as “first” and “second” cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order.

[0056] To thoroughly understand the embodiments of the present invention, a detailed structure will be provided in the following description. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments.

[0057] The utility model provides an underwater propulsion device. The underwater propulsion device can be used for a vehicle. In this way, the vehicle can travel on land and sail in water. The vehicle can be an off-road vehicle.

[0058] Please refer to Figures 1 to 7 The underwater propulsion device includes a housing 110. Housing 110 may be cylindrical. The shape of housing 110 is similar to that of a spare tire. Thus, the vehicle using the underwater propulsion device is aesthetically pleasing. Housing 110 defines an interior space 113.

[0059] The underwater propulsion device further includes a first propulsion assembly 120. The first propulsion assembly 120 may include a propeller 121. The propeller 121 is capable of entering the water and rotating about its rotation axis (the rotation axis of the first propulsion assembly 120) within the water, thereby propelling the vehicle body 100 equipped with the underwater propulsion device through the water. The rotation axis of the propeller 121 is parallel to a third direction D3, which will be described later.

[0060] Please refer to Figures 3 to 7The underwater propulsion device further includes a first drive assembly 130 and a second drive assembly 150. At least one of the first drive assembly 130 and the second drive assembly 150 is connected to the housing 110. One of the first drive assembly 130 and the second drive assembly 150 is connected to the first propulsion assembly 120. The first drive assembly 130 is capable of driving the first propulsion assembly 120 to move along a first direction D1, so that the first propulsion assembly 120 moves between a stowed position and an extended position.

[0061] When the first propulsion assembly 120 is in the stowed position, it is housed within the interior space 113. In this position, the lower edge of the underwater propulsion device is above the lower edges of the wheels, allowing the vehicle to travel on land. Furthermore, the housing 110 protects the first propulsion assembly 120.

[0062] like Figure 1 As shown, when the first propulsion assembly 120 is in the extended position, the first propulsion assembly 120 extends out of the housing 110. At this time, the propeller 121 of the first propulsion assembly 120 can extend into the water to propel the vehicle to sail in the water.

[0063] Please refer to Figures 3 to 7 The second drive assembly 150 can drive the first propulsion assembly 120 to swing about an axis parallel to the second direction D2. This allows the angle between the rotation axis of the first propulsion assembly 120 and the horizontal direction to be adjusted as needed. Thus, when the vehicle is navigating water, the angle between the rotation axis of the first propulsion assembly 120 and the horizontal direction can be adjusted based on the prevailing navigational conditions (e.g., wind speed, water velocity, and wave size), thereby adapting to various navigational environments.

[0064] It should be noted that any two of the first direction D1, the second direction D2, and the third direction D3 intersect (e.g., are perpendicular). When the underwater propulsion device is installed on the vehicle and the first propulsion assembly 120 is in the original swing position described below, the first direction D1 can be parallel to the height direction of the vehicle, the second direction D2 can be parallel to the width direction of the vehicle, and the third direction D3 can be parallel to the front-rear direction of the vehicle.

[0065] In this embodiment, when the vehicle needs to sail in the water, the first propulsion assembly 120 is moved to the extended position to enter the water. At this time, the vehicle can be driven to sail in the water; when the vehicle needs to travel on land, the first propulsion assembly 120 is moved to the storage position. At this time, the first propulsion assembly 120 can be protected and prevented from being collided with other objects around the vehicle. In addition, when the vehicle is sailing in the water, the rotation axis and the horizontal angle of the first propulsion assembly 120 can be adjusted according to the navigation environment around the vehicle at that time, so as to adapt to different navigation environments.

[0066] Alternatively, refer to Figure 1 , the underwater propulsion device can be arranged on the rear door of the vehicle. Thus, the structure of the vehicle adopting the underwater propulsion device is simple.

[0067] Alternatively, refer to Figures 1 to 5 The housing 110 includes a main body 111 and a cover 112. The main body 111 has an opening at one end. The cover 112 is detachably connected to the main body 111 to cover the opening of the main body 111, thereby forming an internal space 113. As a result, the cover 112 can be removed to maintain or replace other components in the housing 110.

[0068] Furthermore, the cover 112 is snap-connected to the main body 111, thereby facilitating installation.

[0069] Please refer to Figure 1 、 Figure 2 and Figure 5 The underwater propulsion device further includes a fixing plate 180. The fixing plate 180 is detachably connected to the end surface of the main body 111 away from the cover 112. For example, the fixing plate 180 can be connected to the end surface of the main body 111 using fasteners (e.g., bolts). The fixing plate 180 can be detachably connected to the vehicle body 100 using fasteners. This facilitates disassembly of the underwater propulsion device.

[0070] like Figure 1 and Figure 5 As shown, the housing 110 has a notch 114. When the underwater propulsion device is installed on a vehicle, the notch 114 is located at the lower end of the housing 110. The propeller 121 of the first propulsion assembly 120 in the stowed position can extend out of the housing 110 through the notch 114. The first propulsion assembly 120 has a sealing cover 122. When the first propulsion assembly 120 is in the stowed position, the sealing cover 122 covers the notch 114, effectively protecting the propeller 121.

[0071] Alternatively, as Figures 3 to 5 As shown, the first drive assembly 130 may include a first drive cylinder. The first drive cylinder includes a first portion 131 (cylinder base) and a second portion 132 (cylinder shaft). The first portion 131 is connected to the housing 110. The length of the second portion 132 is parallel to the first direction D1. The second portion 132 is movably connected to the first portion 131 along the first direction D1. The second portion 132 is connected to the first propulsion assembly 120 to drive the first propulsion assembly 120 to move along the first direction D1. As a result, the structure of the first drive assembly 130 is simple.

[0072] It is understood that in an embodiment not shown, the first drive assembly may also include a gear and a rack or other components that can achieve linear movement.

[0073] Alternatively, refer to Figures 3 to 5 The first portion 131 is pivotally connected to the housing 110 via a rotating shaft 140. The axial direction of the rotating shaft 140 is parallel to the second direction D2. The second drive assembly 150 is connected to the housing 110 and the first portion 131 to drive the first portion 131 to swing about the axis of the rotating shaft 140. As a result, the structure of the underwater propulsion device is simple.

[0074] For further information, please refer to Figures 3 to 7 The second drive assembly 150 includes a pushing member 151, a first pushing member 154, and a second pushing member 157. The pushing member 151 can be a second drive cylinder. The pushing member 151 includes a third portion 152 (cylinder seat) and a fourth portion 153 (cylinder shaft). The third portion 152 is connected to the housing 110. The length of the fourth portion 153 is parallel to the second direction D2. The fourth portion 153 is movably connected to the third portion 152 along the second direction D2.

[0075] The second pusher 157 is connected to the first portion 131. The first pusher 154 has an inclined surface 156. The inclined surface 156 is inclined in the second direction D2. Along the third direction D3, one end of the inclined surface 156 along the second direction D2 is closer to the fixing plate 180 than the other end.

[0076] The fourth portion 153 is connected to the first pusher 154. Thus, the fourth portion 153 can drive the first pusher 154 to move in the second direction D2. When the first pusher 154 moves in the second direction D2, the inclined surface 156 can contact the second pusher 157, pushing the second pusher 157 to move in the third direction D3. Thus, the second pusher 157 moving in the third direction D3 can drive the first portion 131 to swing about the axis of the rotating shaft 140, thereby adjusting the angle between the rotation axis of the first propulsion assembly 120 and the horizontal plane. This results in a simple structure for the underwater propulsion device.

[0077] It is understood that in an embodiment not shown, the pushing member 151 may also include a gear and a rack or other components that can achieve linear movement.

[0078] It is understood that in an embodiment not shown, the second pusher is provided with an inclined surface. In this case, the first pusher contacts the inclined surface, thereby pushing the second pusher to move along the third direction.

[0079] Specifically, such as Figure 6 and Figure 7 As shown, the inclined surface 156 includes a first inclined surface 162 and a second inclined surface 163. The first inclined surface 162 and the second inclined surface 163 are respectively located at two opposite ends of the first pusher 154 along the third direction D3. Figure 4As shown, when the underwater propulsion device is installed on a vehicle, when the first propulsion assembly 120 swings around the axis of the rotating shaft 140, the first propulsion assembly 120 has an original swing position, a first swing position and a second swing position.

[0080] like Figure 4 As shown, the initial position of the first propulsion assembly 120 is the original swing position. When the first propulsion assembly 120 is in the original swing position, the first direction is parallel to the vertical direction. The axis of the first driving assembly 130 is as shown in FIG. Figure 4 As shown by the dotted line A1 in FIG. 1 , the inclined surface 156 contacts the second pushing member 157. The second pushing member 157 is located between the two ends of the inclined surface 156 along the second direction D2.

[0081] When the first propulsion assembly 120 is in the first swing position, the first direction and the vertical direction form an angle. Figure 4 As shown by the dotted line A2 in FIG. When the first propulsion assembly 120 is in the second swing position, the first direction and the vertical direction form an angle. The axis of the first driving assembly 130 is as shown in FIG. Figure 4 As shown by the dotted line A3 in FIG.

[0082] like Figure 4 and Figure 6 As shown, when the first propulsion assembly 120 is in the original swing position, the first pushing member 154 is moved along the first pushing direction D21 parallel to the second direction D2, and the second pushing member 157 can be pushed through the first inclined surface 162 to move the second pushing member 157 away from the fixed plate 180 along the third direction D3, thereby driving the first propulsion assembly 120 to swing from the original swing position to the first swing position along the first swing direction D4.

[0083] When the first propulsion assembly 120 is in the first swing position, the first pushing member 154 is moved along the second pushing direction D22 opposite to the first pushing direction D21, and the second pushing member 157 can be pushed through the second inclined surface 163, so that the second pushing member 157 moves along the third direction D3 close to the fixed plate 180, thereby driving the first propulsion assembly 120 to swing from the first swing position to the original swing position along the second swing direction D5.

[0084] Please refer to Figure 4 and Figure 7 When the first propulsion assembly 120 is located at the original swing position, the first pushing member 154 is moved along the second pushing direction D22, and the second pushing member 157 can be pushed through the second inclined surface 163, so that the second pushing member 157 moves along the third direction D3 close to the fixed plate 180, thereby driving the first propulsion assembly 120 to swing from the original swing position to the second swing position along the second swing direction D5.

[0085] When the first propulsion assembly 120 is in the second swing position, the first pushing member 154 is moved along the first pushing direction D21, and the second pushing member 157 can be pushed through the first inclined surface 162, so that the second pushing member 157 moves away from the fixed plate 180 along the third direction D3, thereby driving the first propulsion assembly 120 to swing from the second swing position to the original swing position along the first swing direction D4.

[0086] Optionally, the first propulsion assembly 120 swings at an angle α≤10° between the first swing position and the second swing position.

[0087] Further preferably, the first propulsion assembly 120 swings at an angle ranging from -5° to 5° relative to the vertical direction. That is, the first propulsion assembly 120 swings at an angle α1 ≤ 5° between the first swing position and the original swing position. The first propulsion assembly 120 swings at an angle α2 ≤ 5° between the second swing position and the original swing position.

[0088] Optionally, the second drive assembly 150 further includes an elastic connector (not shown). The elastic connector can be a rubber member. The elastic connector can be disposed within the second through hole 161 described below. The second pusher 157 is connected to the first portion 131 via the elastic connector to prevent interference between the second pusher 157 and the first portion 131.

[0089] Alternatively, as Figure 4 and Figure 5 As shown, the second pusher 157 includes a first connecting portion 158 and a second connecting portion 159. The first connecting portion 158 and the second connecting portion 159 are connected to each other. Both the first connecting portion 158 and the second connecting portion 159 have rectangular structures. The plane on which the first connecting portion 158 lies is perpendicular to the second direction D2. The plane on which the second connecting portion 159 lies is perpendicular to the first direction D1. Thus, the first connecting portion 158 and the second connecting portion 159 are perpendicular.

[0090] The first connecting portion 158 has a first through hole 160. The second connecting portion 159 has a second through hole 161. The first through hole 160 and the second through hole 161 are both rectangular holes. The opening direction of the first through hole 160 is parallel to the second direction D2. The opening direction of the second through hole 161 is parallel to the first direction D1. The first pushing member 154 has an inclined surface 156. The first through hole 160 is sleeved on the first pushing member 154. In this way, the inclined surface 156 can contact the inner wall surface of the first through hole 160. The second through hole 161 is sleeved on the first portion 131. As a result, the structure of the second pushing member 157 is simple.

[0091] Alternatively, as Figure 1As shown, the underwater propulsion device further includes a second propulsion assembly 170. The second propulsion assembly 170 is used to be connected to the vehicle body 100. The rotation axis of the second propulsion assembly 170 can be parallel to the second direction D2. Therefore, the second propulsion assembly 170 can drive the vehicle to move along the second direction D2.

[0092] Furthermore, the second propulsion assembly 170 is configured as a vehicle wheel. The ribs 172 of the wheel hub 171 are configured as spiral blades. Thus, the structure of the vehicle using the underwater propulsion device is simple.

[0093] The utility model also provides a vehicle, which includes the aforementioned underwater propulsion device.

[0094] In this embodiment, the vehicle includes the aforementioned underwater propulsion device. When the vehicle needs to navigate in the water, the first propulsion assembly 120 is moved to the extended position to enter the water. At this time, the vehicle can be driven to navigate in the water; when the vehicle needs to travel on land, the first propulsion assembly 120 is moved to the storage position. At this time, the first propulsion assembly 120 can be protected to prevent the first propulsion assembly 120 from being collided with other objects around the vehicle. In addition, when the vehicle is sailing in the water, the rotation axis and the horizontal angle of the first propulsion assembly 120 can be adjusted according to the navigation environment around the vehicle at that time, so as to adapt to different navigation environments.

[0095] The present invention has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Furthermore, those skilled in the art will appreciate that the present invention is not limited to the above embodiments and that various variations and modifications may be made based on the teachings of the present invention, all of which fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

[0096] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "component" and the like appearing herein may refer to either a single part or a combination of multiple parts. Terms such as "installation" and "setting" appearing herein may refer to either a component being directly attached to another component or a component being attached to another component through an intermediate. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise stated.

Claims

1. An underwater propulsion device for a vehicle, characterized in that: The underwater propulsion device comprises: a housing for connection to a body of the vehicle, the housing having an interior space; a first propulsion assembly, the first propulsion assembly being movably arranged along a first direction between a storage position stored in the internal space and an extended position extended outside the housing, and the first propulsion assembly at the extended position can be extended into water; a first drive assembly connected to the first propulsion assembly to drive the first propulsion assembly to move between the stowed position and the extended position; a second driving assembly, the second driving assembly being capable of driving the first propulsion assembly to swing about an axis parallel to a second direction; At least one of the first drive assembly and the second drive assembly is connected to the housing, one of the first drive assembly and the second drive assembly is connected to the first propulsion assembly, and the first direction and the second direction intersect any two of the rotation axes of the first propulsion assembly.

2. The underwater propulsion device for a vehicle according to claim 1, characterized in that: The first driving assembly includes a first portion and a second portion, the first portion is connected to the housing, the second portion is movably connected to the first portion along the first direction, and the second portion is connected to the first propulsion assembly to drive the first propulsion assembly to move along the first direction.

3. The underwater propulsion device for a vehicle according to claim 2, characterized in that: The first part is pivotally connected to the housing via a rotating shaft whose axial direction is parallel to the second direction, and the second driving assembly is connected to the housing and the first part to drive the first part to swing around the axis of the rotating shaft.

4. The underwater propulsion device for a vehicle according to claim 3, characterized in that: The second driving assembly comprises: A first pusher; a second pushing member connected to the first portion; a pushing member, the pushing member comprising a third portion and a fourth portion, the third portion being connected to the housing, the fourth portion being movably connected to the third portion along the second direction; One of the first pushing member and the second pushing member has an inclined surface, which is inclined to the second direction and can contact the other of the first pushing member and the second pushing member. The fourth part is connected to the first pushing member to move the first pushing member along the second direction and act on the second pushing member via the inclined surface, so that the second pushing member moves along the rotation axis of the first propulsion assembly, thereby causing the first propulsion assembly to swing.

5. The underwater propulsion device for a vehicle according to claim 4, characterized in that: The second driving assembly further includes an elastic connecting member, and the second pushing member is connected to the first part via the elastic connecting member.

6. The underwater propulsion device for a vehicle according to claim 4, characterized in that: The second pushing member includes a first connecting portion and a second connecting portion connected to each other, the first connecting portion has a first through hole, the second connecting portion has a second through hole, the first pushing member has the inclined surface, the first through hole is sleeved on the first pushing member so that the inclined surface can contact the inner wall surface of the first through hole, and the second through hole is sleeved on the first portion.

7. The underwater propulsion device for a vehicle according to claim 1, characterized in that: The swing angle of the first propulsion assembly is α≤10°.

8. The underwater propulsion device for a vehicle according to claim 1, characterized in that: When the underwater propulsion device is arranged on a vehicle, the swing angle range of the first propulsion assembly relative to the vertical direction is -5° to 5°.

9. The underwater propulsion device for a vehicle according to claim 1, characterized in that: The underwater propulsion device for a vehicle further includes a second propulsion assembly, wherein the second propulsion assembly is used to be connected to the vehicle body, and a rotation axis of the second propulsion assembly is parallel to the second direction.

10. The underwater propulsion device for a vehicle according to claim 9, characterized in that: The second propulsion assembly is configured as a wheel of a vehicle, and the ribs of the hub of the wheel are configured as spiral blades.

11. The underwater propulsion device for a vehicle according to claim 1, characterized in that: The housing has a notch, and the first propulsion assembly has a blocking cover. When the first propulsion assembly is located at the storage position, the blocking cover covers the notch.

12. A vehicle, characterized in that: The vehicle comprises an underwater propulsion device according to any one of claims 1 to 11.

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