Sunshade curtain and vehicle

Abstract

The embodiment of the present application provides a sunshade curtain and a vehicle. The sunshade curtain comprises a cylinder, a torsion spring assembly and a counterweight. The cylinder comprises a cylinder cavity; at least part of the torsion spring assembly is arranged at a first position of the cylinder cavity; a first end of the torsion spring assembly is connected with the cylinder, and a second end of the torsion spring assembly is used for being connected with an external structure. The counterweight is arranged at a second position of the cylinder cavity, and the first position and the second position are spaced apart along the axial direction of the cylinder. In this way, the counterweight can be used to balance the gravity influence of the torsion spring assembly on the cylinder. Thus, the above arrangement can prevent the sunshade curtain from making abnormal sound due to uneven weight distribution when the door is opened or closed, and can effectively improve the driving experience of the passenger.

Description

Technical Field

[0001] This application belongs to the field of vehicle technology, specifically relating to a sunshade and a vehicle. Background Technology

[0002] Existing vehicle sunshades typically have a torsion spring assembly inside the roller tube. Because the torsion spring assembly is usually located at one end of the roller tube, the center of gravity of the roller tube is not balanced. When the vehicle door is opened and closed, the roller tube is affected by vibration and is prone to producing a rattling sound, which will affect the user's driving and riding experience. Utility Model Content

[0003] In view of the above problems, this utility model is proposed to provide a sunshade and vehicle that overcomes or at least partially solves the above problems.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] In a first aspect, embodiments of this application provide a sunshade curtain, including a tube body, a torsion spring assembly, and a counterweight;

[0006] The cylindrical body includes a cylindrical cavity;

[0007] At least a portion of the torsion spring assembly is disposed at a first position in the cylinder cavity; the first end of the torsion spring assembly is connected to the cylinder body, and the second end of the torsion spring assembly is used for connection to an external structure;

[0008] The counterweight is positioned at a second location in the cylinder cavity, and the first and second locations are spaced apart along the axial direction of the cylinder.

[0009] Optionally, the sunshade includes a buffer strip;

[0010] The buffer strip is inserted into the cylinder cavity and positioned between the torsion spring assembly and the counterweight.

[0011] Optionally, the buffer bar includes at least two sub-buffer bars, and the at least two sub-buffer bars are arranged along the axial direction of the cylinder.

[0012] Optionally, the first end of the buffer bar contacts the torsion spring assembly, and the second end of the buffer bar contacts the counterweight.

[0013] Optionally, a protrusion is provided on the wall of the cylinder; along the radial direction of the cylinder, the counterweight is fitted between the protrusion and the wall of the cylinder.

[0014] Optionally, the counterweight includes at least two sub-counterweights, and the at least two sub-counterweights are arranged along the axial direction of the cylinder.

[0015] Optionally, the sunshade includes a sealing element;

[0016] The cylinder has a first opening near the counterweight, the first opening is in communication with the cylinder cavity, and the sealing member is sealed in the first opening.

[0017] Optionally, the sealing element includes an end cap and a plug;

[0018] The end cap is installed in the first opening; the end cap is provided with an installation hole, and the plug is inserted into the installation hole.

[0019] Optionally, the sunshade includes a base, on which a fixed shaft is provided, and the cylindrical body is mounted on the fixed shaft.

[0020] Secondly, embodiments of this application propose a door assembly, which includes any of the sunshades described above.

[0021] Thirdly, embodiments of this application propose a vehicle that includes any of the sunshades or door assemblies described above.

[0022] In this embodiment, the sunshade's tube body has a cavity. A torsion spring assembly is disposed at a first position within the cavity, and a counterweight is disposed at a second position. The first and second positions of the cavity are spaced apart along the axial direction of the tube body, allowing the counterweight to balance the gravitational influence of the torsion spring assembly on the tube body. This prevents the sunshade from making abnormal noises due to uneven weight distribution when opening and closing vehicle doors, effectively improving the passenger's riding experience.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the structure of the sunshade curtain described in the embodiments of this application;

[0026] Figure 2 yes Figure 1 Side view;

[0027] Figure 3 yes Figure 2 A magnified view of a portion of the image;

[0028] Figure 4 yes Figure 3 A cross-sectional view along AA;

[0029] Figure 5 yes Figure 4 Simplified diagram;

[0030] Reference numerals: 1. Sunshade curtain; 11. Tube body; 111. Tube cavity; 112. First opening; 12. Torsion spring assembly; 13. Counterweight; 14. Buffer strip; 15. Sealing component; 151. Plug; 152. End cap; 16. Base; 161. Fixed shaft; 17. Curtain fabric. Detailed Implementation

[0031] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0032] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Reference Figure 1 , Figure 2 , Figure 3 This illustration shows a sunshade 1 according to an embodiment of this application. The sunshade 1 described in this application is applied to the side window of a vehicle. Occupants can unfold the sunshade 1 when needed to block external light entering the vehicle interior from the side window. Specifically, the sunshade 1 includes a curtain 17 and a tube 11. The tube 11 is rotatably mounted on the vehicle, and the curtain 17 is wound around the tube 11. In use, the occupant pulls one end of the curtain 17, causing the curtain 17 wound around the tube 11 to fully or partially unfold and block the side window of the vehicle. To retract, the tube 11 is rotated so that the curtain 17 is rewound around the tube 11.

[0036] The cylinder 11 is typically rotatably mounted on a fixed shaft, and a torsion spring assembly 12 is disposed inside the cylinder 11. The torsion spring assembly 12 has a first end and a second end that are movable relative to each other. In the unloaded state, the first end and the second end maintain a certain distance or are set at a certain angle. The first end of the torsion spring assembly 12 is connected to the cylinder 11, and the two can be connected by various methods such as welding, bonding, or fasteners. (Reference) Figure 4 The second end of the torsion spring assembly 12 is used to connect to an external structure, which can be a fixed shaft 161 for mounting the cylinder 11, or other related structures on the vehicle. When the occupant pulls the curtain 17 to unfold it, the cylinder 11 rotates relative to the fixed shaft 161. At this time, the first end of the torsion spring assembly 12 connected to the cylinder 11 moves synchronously relative to the second end of the torsion spring assembly 12. At this time, the distance or angle between the first and second ends of the torsion spring assembly 12 can tend to decrease or increase, so that the torsion spring assembly 12 accumulates elastic potential energy and applies an elastic reaction force to the cylinder 11. When the occupant pulls up the curtain 17, the curtain 17 can be released. Under the action of the torsion spring assembly 12, the cylinder 11 rotates relative to the fixed shaft 161 and synchronously winds the curtain 17 back to its original position.

[0037] refer to Figure 4 , Figure 5Because the torsion spring assembly 12 is usually eccentrically positioned on one side of the cylinder 11, it can easily cause uneven weight distribution inside the cylinder 11, or in other words, uneven load inside the cylinder 11. When the car door is closed, due to the uneven load, the cylinder 11 is prone to significant vibration and collision with the external structure, thereby generating noise that affects the comfort of the occupants. Therefore, the sunshade 1 described in this application also includes a counterweight 13.

[0038] refer to Figure 4 In the sunshade 1 described in this application, part or all of the torsion spring assembly 12 is disposed at a first position in the cylinder cavity 111, and the counterweight 13 is disposed at a second position in the cylinder cavity 111. The first and second positions are specifically set according to actual needs. For example, the first position may be one end of the cylinder 11, and the second position may be the other end of the cylinder 11. Alternatively, the first position may be one end of the cylinder 11, and the second position may be a portion of the cylinder 11 near the other end. The first and second positions are spaced apart along the axial direction of the cylinder 11 so as to balance the load borne inside the cylinder 11 by means of the counterweight 13. It should be noted that the mass of the counterweight 13 and the interval between the first and second positions are determined according to actual needs. In other words, technicians can specifically select the mass of the counterweight 13 and the interval between the first and second positions according to the magnitude of the off-center load inside the cylinder 11. This can eliminate the influence of off-center load on the cylinder 11, prevent the cylinder 11 from vibrating excessively and making noise when opening and closing the car door, and thus improve the comfort and experience of driving and riding in the vehicle.

[0039] refer to Figure 4 , Figure 5 In some embodiments of this application, the sunshade 1 further includes a buffer strip 14. The buffer strip 14 is inserted into the cylindrical cavity 111 and disposed between the torsion spring assembly 12 and the counterweight 13. The buffer strip 14 can absorb the vibration of the cylindrical body 11 and prevent the cylindrical body 11 from colliding with the fixed shaft 161 on which the cylindrical body 11 is mounted and generating abnormal noise. The buffer strip 14 can be a sponge strip or a rubber strip, etc. In actual installation, the buffer strip 14 can be wrapped around the inside of the cylindrical body 11 or inserted into the cylindrical body 11. For example, the buffer strip 14 can be spirally arranged on the inner wall of the cylindrical body 11 along the axial direction of the cylindrical body 11, or it can be directly processed into a cylindrical shape and fitted inside the cylindrical body 11.

[0040] In some embodiments of this application, the buffer strip 14 may include at least two sub-buffer strips, and the at least two sub-buffer strips are arranged along the axial direction of the cylinder 11. The number of sub-buffer strips may be two, three, four, or even more, and these sub-buffer strips may be made of the same material and have different structures. For example, some sub-buffer strips may be made of sponge material, and some may be made of rubber. By combining sub-buffer strips of different materials, different parts inside the cylinder 11 can have different buffering effects. The structures between the sub-buffer strips may differ; for example, some sub-buffer strips may have a strip-like structure and be inserted between the cylinder 11 and the fixed shaft 161, while some sub-buffer strips may have a cylindrical structure and be fitted between the cylinder 11 and the fixed shaft 161. This allows for the use of different combinations of sub-buffer strips to achieve diversified buffering effects, making it easier for technicians to flexibly configure the buffer strip 14. Of course, only one buffer strip 14 may be provided to reduce design, production, and processing costs.

[0041] refer to Figure 4 In some embodiments of this application, the first end of the buffer strip 14 contacts the torsion spring assembly 12, and the second end of the buffer strip 14 contacts the counterweight 13. This allows the buffer strip 14 to fill the gap between the torsion spring assembly 12 and the counterweight 13 as much as possible, ensuring sufficient buffering area between the cylinder 11 and the fixed shaft 161. Furthermore, during installation, the buffer strip 14 can be used to position the counterweight 13. Specifically, during installation, the buffer strip 14 can be installed inside the cylinder 11 first, and then the counterweight 13 can be inserted into the cylinder 11, with the buffer strip 14 in contact with the counterweight 13. At this point, the length of the buffer strip 14 along the axial direction of the cylinder 11 is the reserved gap between the counterweight 13 and the torsion spring assembly 12. This simplifies the installation of the sunshade 1, thereby reducing the production and processing costs of the sunshade 1.

[0042] In some embodiments of this application, the cylinder wall of the cylinder 11 is provided with protrusions extending radially into the cylinder cavity 111. A counterweight 13 is fitted between the protrusions and the cylinder wall of the cylinder 11, so that the counterweight 13 can be fixed inside the cylinder 11 and is less likely to move axially along the cylinder 11. Specifically, after the counterweight 13 is installed in place, a portion of the cylinder wall can be pressed into a protrusion extending into the cylinder cavity 111 at the corresponding position of the counterweight 13. The protrusions press the counterweight 13 tightly against the cylinder wall of the cylinder 11, increasing the friction between the counterweight 13 and the cylinder 11, thereby preventing the counterweight 13 from moving relative to the cylinder 11. For a single counterweight 13, only one, two, three, or even more protrusions can be machined on the cylinder 11 to fix the counterweight 13. In other words, the specific number of protrusions depends on the specific needs.

[0043] In some embodiments of this application, the counterweight 13 includes at least two sub-counterweights, and the at least two sub-counterweights are arranged along the axial direction of the cylinder 11. The number of sub-counterweights can be two, three, four, or even more, and these sub-counterweights can be made of the same material and have different weights. For example, some sub-counterweights can be made of a denser material, and some sub-counterweights can be made of a less dense material. In this way, the mass of different sub-counterweights varies within the same volume. By combining sub-counterweights of different weights, it is easier to ensure that the total weight of the counterweight 13 is within the applicable error range. In other words, the combination of sub-counterweights of different weights makes it easier to ensure the accuracy of the weight of the counterweight 13 added to the cylinder 11. Of course, only one counterweight 13 can be provided, and the accuracy of the weight of the counterweight 13 can be ensured by improving the processing precision of the counterweight 13.

[0044] refer to Figure 4 In some embodiments of this application, the sunshade 1 includes a sealing member 15. The cylindrical body 11 has a first opening 112 near the counterweight 13, and the first opening 112 communicates with the cylindrical cavity 111. In other words, the first opening 112 is the opening of the cylindrical body 11 near the counterweight 13. The first opening 112 communicates with the cylindrical cavity 111 of the cylindrical body 11, and the sealing member 15 seals the first opening 112. The sealing member 15 prevents the counterweight 13 from detaching from the cylindrical body 11, thus effectively ensuring that the counterweight 13 on the sunshade 1 will not detach from the cylindrical body 11 and fail due to vibration or other factors.

[0045] In some embodiments of this application, the sealing component 15 specifically includes an end cap 152 and a plug 151. The end cap 152 is installed on the first opening 112, and the end cap 152 is provided with a mounting hole, into which the plug 151 is inserted. Specifically, the plug 151 can be a threaded plug, and the end cap 152 can have a cylindrical structure extending axially along the cylinder 11. The mounting hole is specifically a threaded hole. During installation, the cylindrical structure of the end cap 152 is inserted into the first opening 112 of the cylinder 11, and the plug 151 is threadedly connected to the mounting hole. The end cap 152 facilitates the use of diverse plugs 151 in the cylinder 11. By changing the size of the mounting hole, the end cap 152 can accommodate plugs 151 of different sizes. This increases the selection range of plugs 151 and improves the flexibility of plug configuration.

[0046] In some embodiments of this application, the sunshade 1 further includes a base 16. The base 16 is used for fixed installation on the side window of a vehicle, and the aforementioned fixing shaft 161 for mounting the cylinder 11 is mounted on the base 16, with the cylinder 11 rotatably mounted on the fixing shaft 161. The structure of the base 16 depends on specific needs; for example, the base 16 can be a cylindrical structure, with both the fixing shaft 161 and the cylinder 11 disposed within the inner cavity of the base 16. Alternatively, the base 16 can also be a frame structure, with the aforementioned fixing shaft 161 fixedly mounted on the frame structure, and the cylinder 11 rotatably mounted on the fixing shaft 161.

[0047] Secondly, embodiments of this application propose a vehicle door assembly, which includes a sunshade 1 as described above. Specifically, the vehicle door assembly may further include a door body, side windows, and other structures, with the sunshade 1 fixedly installed on the door body.

[0048] Occupants can unfold the sunshade 1 when needed to block external light entering the vehicle interior from the side windows. Specifically, the sunshade 1 includes a curtain 17 and a tube 11. The tube 11 is rotatably mounted on the vehicle, and the curtain 17 is wound around the tube 11. In use, the occupant pulls one end of the curtain 17, causing the curtain 17 wound around the tube 11 to be fully or partially unfolded and used to block the side windows of the vehicle. To retract, the tube 11 is rotated so that the curtain 17 is rewound around the tube 11.

[0049] The cylinder 11 is typically rotatably mounted on a fixed shaft 161, and a torsion spring assembly 12 is disposed inside the cylinder 11. The torsion spring assembly 12 has a first end and a second end that are movable relative to each other. In the unloaded state, the first end and the second end are spaced apart or at a certain angle. The first end of the torsion spring assembly 12 is connected to the cylinder 11, and the two can be connected by various methods such as welding, bonding, or fastener connection. The second end of the torsion spring assembly 12 is used to connect to an external structure, which can be the fixed shaft 161 for mounting the cylinder 11, or other related structures on the vehicle. When the occupant pulls the curtain 17 to unfold the curtain 17, the cylinder 11 rotates relative to the fixed shaft 161. At this time, the first end of the torsion spring assembly 12 connected to the cylinder 11 moves synchronously relative to the second end of the torsion spring assembly 12. At this time, the distance or angle between the first end and the second end of the torsion spring assembly 12 can tend to decrease or increase, so that the torsion spring assembly 12 accumulates elastic potential energy and applies an elastic reaction force to the cylinder 11. When the occupant retracts the curtain 17, the curtain 17 can be released. Under the action of the torsion spring assembly 12, the cylinder 11 rotates relative to the fixed shaft 161, and simultaneously winds the curtain 17 back to its original position.

[0050] In the sunshade 1 described in this application, some or all of the torsion spring assemblies 12 are disposed at a first position in the cylindrical cavity 111, and the counterweight 13 is disposed at a second position in the cylindrical cavity 111. The first and second positions are spaced apart along the axial direction of the cylindrical body 11 so as to balance the load borne inside the cylindrical body 11 by means of the counterweight 13. This can eliminate the influence of off-center load on the cylindrical body 11, prevent the cylindrical body 11 from vibrating excessively and generating noise when opening and closing the car door, and thus help improve the comfort and experience of driving and riding in the vehicle.

[0051] The sunshade 1 also includes a buffer strip 14. The buffer strip 14 is inserted into the cylinder cavity 111 and positioned between the torsion spring assembly 12 and the counterweight 13. The buffer strip 14 absorbs vibrations from the cylinder 11, preventing the cylinder 11 from colliding with the fixed shaft 161 on which it is mounted and causing abnormal noise. The buffer strip 14 can be a sponge strip or a rubber strip, etc. During actual installation, the buffer strip 14 can be wrapped around the inside of the cylinder 11 or inserted into it. The buffer strip 14 can include at least two sub-buffer strips, and these at least two sub-buffer strips are arranged along the axial direction of the cylinder 11. The number of sub-buffer strips can be two, three, four, or even more. These sub-buffer strips can be made of the same material and have different structures. This allows for the use of different combinations of sub-buffer strips to achieve diversified buffering effects, making it easier for technicians to flexibly configure the buffer strip 14. Of course, only one buffer strip 14 can be provided to reduce design, production, and processing costs. The first end of the buffer strip 14 contacts the torsion spring assembly 12, and the second end of the buffer strip 14 contacts the counterweight 13. This allows the buffer strip 14 to fill the gap between the torsion spring assembly 12 and the counterweight 13 as much as possible, ensuring sufficient buffering area between the cylinder 11 and the fixed shaft 161. Furthermore, during installation, the buffer strip 14 can be used to position the counterweight 13.

[0052] The cylinder wall of the cylinder 11 has protrusions extending radially into the cylinder cavity 111. A counterweight 13 is fitted between the protrusions and the cylinder wall of the cylinder 11, ensuring the counterweight 13 is fixed within the cylinder 11 and prevents it from shifting axially. The protrusions press the counterweight 13 firmly against the cylinder wall of the cylinder 11, increasing friction between the counterweight 13 and the cylinder 11, thereby preventing movement of the counterweight 13 relative to the cylinder 11. For a single counterweight 13, the cylinder 11 may have only one, or two, three, or even more protrusions to fix the counterweight 13. The counterweight 13 may include at least two sub-counterweights, and these at least two sub-counterweights are arranged axially along the cylinder 11. The number of sub-counterweights can be two, three, four, or even more; these sub-counterweights can be made of the same material and have different weights.

[0053] The sunshade 1 includes a sealing element 15. The cylindrical body 11 has a first opening 112 near the counterweight 13. The first opening 112 communicates with the cylindrical cavity 111. The sealing element 15 prevents the counterweight 13 from detaching from the cylindrical body 11, thus effectively ensuring that the counterweight 13 on the sunshade 1 will not detach from the cylindrical body 11 and fail due to vibration or other factors. The sealing element 15 specifically includes an end cap 152 and a plug 151. The end cap 152 is installed on the first opening 112, and the end cap 152 has a mounting hole, into which the plug 151 is inserted. Specifically, the plug 151 can be a threaded plug, and the end cap 152 can have a cylindrical structure extending axially along the cylindrical body 11. The mounting hole is specifically a threaded hole. During installation, the cylindrical structure of the end cap 152 is inserted into the first opening 112 of the cylindrical body 11, and the plug 151 is threaded into the mounting hole. The end cap 152 allows for the use of diverse plugs 151 in the cylinder 11. By changing the size of the mounting hole, the end cap 152 can accommodate plugs 151 of different sizes. This increases the selection range of plugs 151 and also improves the flexibility of plug configuration.

[0054] The sunshade 1 also includes a base 16. The base 16 is used for fixed installation on the side window of the vehicle. The aforementioned fixing shaft 161 for mounting the cylinder 11 is mounted on the base 16, and the cylinder 11 is rotatably mounted on the fixing shaft 161. The structure of the base 16 depends on the specific needs. For example, the base 16 can be a cylindrical structure or a frame structure, etc.

[0055] The door assembly described in this application embodiment may include at least the following advantages:

[0056] The door assembly described in this application uses the aforementioned sunshade 1. The sunshade 1 has a cylindrical body 11 with a cavity 111. At least a portion of the torsion spring assembly 12 is disposed at a first position of the cavity 111, and a counterweight 13 is disposed at a second position of the cavity 111. The first and second positions of the cavity 111 are spaced apart along the axial direction of the cylindrical body 11, so that the counterweight 13 can be used to balance the gravitational influence of the torsion spring assembly 12 on the cylindrical body 11. This can prevent the sunshade 1 from making abnormal noises due to uneven weight distribution when opening and closing the door, thus the door assembly is less likely to make abnormal noises when opening and closing the door and affect the driving experience of the occupants.

[0057] Thirdly, embodiments of this application also provide a vehicle, the vehicle including any of the door assemblies described above.

[0058] For example, in the embodiments of this application, the vehicle may include small cars, medium-sized cars, sedans, trucks, trailers, CDVs (Car Derived Vans), MPVs (multi-Purpose Vehicles), SUVs (Sport Utility Vehicles), etc. The specific type of vehicle is not limited in the embodiments of this application.

[0059] In the vehicle described in this application embodiment, the door assembly can be applied to the driver's seat or the front passenger seat, or it can be applied to the rear seats. Compared to existing vehicles, the vehicle described in this application embodiment has at least the following advantages:

[0060] The vehicle described in this application embodiment uses the aforementioned door assembly. In the door assembly, the tube 11 of the sunshade 1 has a cavity 111. At least a portion of the torsion spring assembly 12 is disposed at a first position of the cavity 111, and a counterweight 13 is disposed at a second position of the cavity 111. The first and second positions of the cavity 111 are spaced apart along the axial direction of the tube 11, so that the counterweight 13 can be used to balance the gravitational influence of the torsion spring assembly 12 on the tube 11. This can prevent the sunshade 1 from making abnormal noises due to uneven weight distribution when opening and closing the door, thus the door assembly is less likely to make abnormal noises when opening and closing the door and affect the driving experience of the occupants. In other words, the vehicle described in this application embodiment using the aforementioned door assembly can reduce abnormal noises when opening and closing the door, and can effectively ensure the driving experience of the occupants.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A sunshade curtain, characterized in that, It includes a cylinder (11), a torsion spring assembly (12), and a counterweight (13); The cylindrical body (11) includes a cylindrical cavity (111); At least a portion of the torsion spring assembly (12) is disposed at a first position in the cylindrical cavity (111); the first end of the torsion spring assembly (12) is connected to the cylindrical body (11), and the second end of the torsion spring assembly (12) is used to connect to an external structure; The counterweight (13) is located at a second position in the cylinder cavity (111), and the first position and the second position are spaced apart along the axial direction of the cylinder (11).

2. The sunshade curtain according to claim 1, characterized in that, The sunshade (1) includes a buffer strip (14); The buffer bar (14) is inserted into the cylindrical cavity (111) and is disposed between the torsion spring assembly (12) and the counterweight (13).

3. The sunshade curtain according to claim 2, characterized in that, The buffer bar (14) includes at least two sub-buffer bars, and the at least two sub-buffer bars are arranged along the axial direction of the cylinder (11).

4. The sunshade curtain according to claim 2, characterized in that, The first end of the buffer bar (14) is in contact with the torsion spring assembly (12), and the second end of the buffer bar (14) is in contact with the counterweight (13).

5. The sunshade curtain according to any one of claims 1-4, characterized in that, The cylinder (11) has a protrusion on its wall; along the radial direction of the cylinder (11), the counterweight (13) is fitted between the protrusion and the cylinder wall of the cylinder (11).

6. The sunshade curtain according to any one of claims 1-4, characterized in that, The counterweight (13) includes at least two sub-counterweights, and the at least two sub-counterweights are arranged along the axial direction of the cylinder (11).

7. The sunshade curtain according to any one of claims 1-4, characterized in that, The sunshade (1) includes a sealing element (15); The cylinder (11) has a first opening (112) near the counterweight (13), the first opening (112) is connected to the cylinder cavity (111), and the sealing member (15) is sealed in the first opening (112).

8. The sunshade curtain according to claim 7, characterized in that, The sealing component (15) includes an end cap (152) and a plug (151); The end cap (152) is installed in the first opening (112); the end cap (152) is provided with an installation hole, and the plug (151) is inserted into the installation hole.

9. The sunshade curtain according to any one of claims 1-4, characterized in that, The sunshade curtain (1) includes a base (16), a fixed shaft (161) is provided on the base (16), and the cylinder (11) is installed on the fixed shaft (161).

10. A vehicle, characterized in that, Includes the sunshade curtain (1) as described in any one of claims 1-9.

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