Windscreen wiper device, windshield assembly and vehicle

Abstract

The utility model discloses a windscreen wiper device, a windscreen assembly and a vehicle. The windscreen wiper device comprises a driving shaft, positioning pieces arranged at the two ends of the driving shaft and a wiping arm. The positioning part and the driving shaft rotate synchronously, the wiping arm is rotationally connected with the driving shaft, a limiting part is arranged on the wiping arm, and the limiting part movably abuts against or is separated from the positioning part so that the wiping arm can swing within a set angle range along with the positioning part or the wiping arm can be static. According to the utility model, the two scraping arms can be used independently or jointly, so that the use convenience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of windshield wipers, and in particular relates to a windshield wiper device, a windshield assembly and a vehicle. Background Art

[0002] During driving, the large temperature difference between the inside and outside of the car inevitably causes fogging on the inside of the windshield, making it difficult for the driver to see the road clearly. Conventional solutions involve using air conditioning to blow air through the windshield to alleviate this problem, but defoggering is slow and poses a safety hazard.

[0003] The existing wiper device includes an inner wiper arm and an outer wiper arm. The inner wiper arm and the outer wiper arm share a driving shaft to achieve synchronous swing, but cannot be used individually or together, which is inconvenient to use. Utility Model Content

[0004] The purpose of the present invention is to solve the above technical problems and provide a wiper device, a windshield assembly and a vehicle, so that the two wiper arms can be used both individually and together, thereby improving the convenience of use. In order to achieve the above purpose, the technical solution of the present invention is as follows:

[0005] The wiper device includes a drive shaft, positioning members arranged at both ends of the drive shaft, and a wiper arm; the positioning member rotates synchronously with the drive shaft, the wiper arm is rotatably connected to the drive shaft, and a limiting member is provided on the wiper arm, and the limiting member movably abuts against or separates from the positioning member so that the wiper arm follows the positioning member to swing within a set angle range or the wiper arm is stationary.

[0006] Specifically, a positioning portion is provided on the positioning member, the limiting member is rotatably connected to the scraper arm, and the limiting member is movably engaged with the positioning portion.

[0007] Specifically, the positioning portion includes a plurality of ratchets arranged along the circumference of the positioning member, and the limiting member includes at least one pawl provided on the scraper arm, and the pawl is rotatably engaged with the ratchets and rotates along with the ratchets.

[0008] Specifically, the driving shaft rotates clockwise or counterclockwise within a set angle range, and the driving shaft drives at least one of the scraper arms to swing through the positioning member.

[0009] Specifically, the positioning member and the scraper arm are respectively sleeved on the outer wall of the drive shaft, the scraper arm and the positioning member are adjacently arranged along the axial direction of the drive shaft, the scraper arm is close to the end of the drive shaft, and the positioning member is far away from the end of the drive shaft.

[0010] Specifically, the scraper arm includes a body and a shaft hole seat arranged at the end of the body, and the shaft hole seat is sleeved on the outer wall of the driving shaft.

[0011] Specifically, a stopper is provided at the end of the driving shaft for limiting the scraper arm to prevent it from axially separating from the driving shaft.

[0012] Specifically, a sensor for detecting humidity is provided on the scraper arm, and when the sensor detects that the humidity reaches a threshold value, the scraper arm is activated to swing.

[0013] The windshield assembly comprises the wiper device and a windshield, wherein the wiper arms are respectively arranged on the outer side and the inner side of the windshield.

[0014] A vehicle comprises the wiper device or the windshield assembly.

[0015] Compared with the prior art, the wiper device, windshield assembly and vehicle of the present invention have the following beneficial effects:

[0016] The wiper arm is provided with a limit part that can be movably abutted against the positioning part. When the limit part and the positioning part are in an abutting state, the wiper arm swings within a set angle range following the positioning part; when the limit part and the positioning part are in a separated state, the wiper arm is stationary; the wiper arms located at both ends of the drive shaft can be controlled individually or synchronously. When one wiper arm swings, the other wiper arm can swing or be stationary, and vice versa, which improves the convenience of using the wiper device and can meet the user's usage needs in different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a wiper device provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the partial assembly of the positioning member provided in an embodiment of the present application;

[0019] Figure 3 A schematic diagram of the partial assembly of the shaft hole seat provided in an embodiment of the present application;

[0020] Figure 4 Schematic diagram of the coordination between the positioning member and the limiting member provided in the embodiment of the present application.

[0021] Reference numerals:

[0022] Drive shaft 1;

[0023] Positioning piece 2,

[0024] Positioning portion 3, first ratchet teeth 31, second ratchet teeth 32;

[0025] Scraper arm 4, shaft hole seat 41

[0026] Limiting member 5, first pawl 51, second pawl 52;

[0027] Shift piece 6;

[0028] Fixed sleeve 7;

[0029] Connecting rod assembly 8. DETAILED DESCRIPTION

[0030] In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless they conflict.

[0031] Example 1

[0032] This embodiment provides a wiper device comprising an outer wiper arm disposed on the outside of the glass and an inner wiper arm disposed on the inside of the glass. The wiper device can be used in a vehicle. Due to the temperature difference between the inside and outside of a vehicle, fog easily forms on the inside of the vehicle's glass. The inner wiper arm can promptly remove the fog, while the outer wiper arm can clean rainwater or dirt from the outside of the glass. The wiper device can be installed on the windshield or other glass locations on the vehicle. This embodiment is described using the windshield as an example.

[0033] like Figure 1-Figure 4 As shown, this embodiment provides a wiper device, including a drive shaft 1, a positioning member 2 provided at both ends of the drive shaft 1 and rotating synchronously therewith, and a wiper arm 4 provided at both ends of the drive shaft 1 and rotationally connected therewith; a limiting member 5 is provided on the wiper arm 4, which is movably abutted against the positioning member 2, so that the wiper arm 4 follows the positioning member 2 to swing within a set angle range, and the limiting member 5 is separated from the positioning member 2, so that the wiper arm 4 is stationary.

[0034] The angle range set in this embodiment is determined according to the installation position of the scraper arm 4 on the glass, so that the swing angle range of the scraper arm 4 is adapted to the area of ​​the glass that needs to be cleaned or demisted.

[0035] The positioning member 2 is sleeved on the outer wall of the drive shaft 1, and the positioning member 2 and the drive shaft 1 are coaxially arranged, and the positioning member 2 and the drive shaft 1 can realize synchronous rotation. The scraper arm 4 is sleeved on the outer wall of the drive shaft 1, and the scraper arm 4 and the drive shaft 1 are coaxially arranged, and the scraper arm 4 and the drive shaft 1 can realize rotation connection.

[0036] The scraper arm 4 and the positioning member 2 are arranged adjacent to each other along the axial direction of the drive shaft 1, and the scraper arm 4 is closer to the end of the drive shaft 1 relative to the positioning member 2 along the axial direction of the drive shaft 1, and the positioning member 2 is away from the end of the drive shaft 1, so that the scraper arm 4 can be adaptively installed on the outside or inside of the glass. The scraper arm 4 can cover the positioning member 2 to achieve a better appearance. Specifically, the scraper arm 4 located on the outside of the glass is the outer scraper arm, and the scraper arm 4 located on the inside of the glass is the inner scraper arm.

[0037] A positioning portion 3 is provided on the circumference of the positioning member 2, and a limiting member 5 is provided on both sides of the scraper arm 4; the limiting member 5 can be driven electrically or pneumatically, so that the limiting member 5 can rotate relative to the scraper arm 4, and the limiting member 5 can also be extended and retracted relative to the scraper arm 4, so that the limiting member 5 and the positioning portion 3 are movably engaged for limiting. When the driving shaft 1 drives the positioning member 2 to rotate synchronously, the positioning member 2 can also drive the scraper arm 4 to rotate.

[0038] The drive shaft 1 can rotate clockwise or counterclockwise within a set angle range. When the limiter 5 of the scraper arm 4 is engaged with the positioning member 2, the scraper arm 4 can rotate clockwise or counterclockwise within the set angle range. When the limiter 5 is not engaged with the positioning member 2, the positioning member 2 and the scraper arm 4 are separated, and the scraper arm 4 does not rotate. The drive shaft 1 drives at least one scraper arm 4 to swing through the positioning member 2. When neither scraper arm 4 needs to rotate, the drive shaft 1 stops rotating, or the limiter 5 and the positioning member 2 are separated.

[0039] For example, the positioning portion 3 can be a hole and the limiting member 5 can be a pin. When the pin is movably plugged into the hole, the positioning portion 3 and the limiting member 5 are in a state of abutment. The positioning portion 3 can drive the limiting member 5 to rotate together, so that the scraper arm 4 follows the positioning member 2 to swing within the set angle range.

[0040] Exemplarily, the positioning portion 3 can be a ratchet provided on the outer periphery of the positioning member 2, and it is understood that the positioning member 2 as a whole is a ratchet; the positioning portion 3 includes a first ratchet 31 and a second ratchet 32, specifically, the outer periphery of the positioning member 2 is arranged with a first ratchet 31 arranged in a clockwise tilt and a second ratchet 32 ​​arranged in a counterclockwise tilt, and the first ratchet 31 and the second ratchet 32 ​​are connected end to end along the same circumferential direction; accordingly, the limiting member 5 includes at least one pawl provided on the scraper arm 4, and the pawl includes a first pawl 51 and a second pawl 52, and the first pawl 51 and the second pawl 52 are spaced a certain distance apart along the same circumference. Angle, the first pawl 51 and the second pawl 52 are respectively rotated relative to the scraper arm 4 by means of electric control. When the first pawl 51 rotates and engages with the first ratchet 31, the scraper arm 4 follows the positioning member 2 to rotate clockwise. When the second pawl 52 rotates and engages with the second ratchet 32, the scraper arm 4 follows the positioning member 2 to rotate counterclockwise. When the first pawl 51 and the second pawl 52 are respectively separated from the first ratchet 31 and the second ratchet 32, the positioning member 2 can follow the drive shaft 1 to be in idle rotation, and the scraper arm 4 does not rotate accordingly. Therefore, the outer scraper arm and the inner scraper arm can operate synchronously or separately without affecting each other.

[0041] In this embodiment, a sensor for detecting the humidity of the glass surface is provided on the scraper arm 4, specifically a sensor is provided on the inner scraper arm. The sensor detects the humidity of the glass surface. When the humidity reaches a threshold value, it is judged that the glass surface is fogged, and the scraper arm 4 automatically starts to realize the swinging defog operation.

[0042] In this embodiment, the wiper arm 4 is provided with a limit member 5 that is movably abutted against the positioning member 2. When the limit member 5 and the positioning member 2 are in an abutting state, the wiper arm 4 swings following the positioning member 2 within a set angle range; when the limit member 5 and the positioning member 2 are in a separated state, the wiper arm 4 is stationary; the wiper arms 4 located at both ends of the drive shaft 1 can realize individual control operation or synchronous control operation. When one wiper arm 4 swings, the other wiper arm 4 can swing or be stationary, and vice versa, which improves the convenience of use of the wiper device and can meet the user's usage needs in different scenarios.

[0043] Example 2

[0044] This embodiment optimizes the wiper device based on the above embodiment, and in particular provides a specific implementation method of a drive shaft:

[0045] The drive shaft 1 can rotate within a set angle range. A fixing sleeve 7 is sleeved on the outside of the drive shaft 1. The fixing sleeve 7 is installed at a fixed position on the vehicle to keep the fixing sleeve 7 in a fixed static state.

[0046] like Figure 2As shown, the outer wall of the drive shaft 1 is connected to a connecting rod assembly 8 that rotates synchronously with it. A driving member is provided on the fixed sleeve 7 for driving the connecting rod assembly 8 to swing within a set angular range. Conventionally, the driving member is a motor, and the connecting rod assembly 8 is composed of multiple hinged, interconnected connecting rods. The connecting rod assembly 8 is connected eccentrically to the drive end of the motor, converting the motor's driving force into a reciprocating swinging force for the connecting rod assembly 8, thereby achieving forward and reverse rotation of the drive shaft 1 within a set angular range.

[0047] The scraper arm 4 includes a body and a shaft hole seat 41 provided at the end of the body. The shaft hole seat 41 is rotatably sleeved on the outer wall of the drive shaft 1, and a bearing can be provided between the drive shaft 1 and the shaft hole seat 41. In order to prevent the shaft hole seat 41 from separating from the drive shaft 1, a stopper 6 is provided at the end of the drive shaft 1 to limit the shaft hole seat 41 and prevent it from separating from the drive shaft 1 in the axial direction. The stopper 6 can be threadedly connected to the outer wall of the drive shaft 1.

[0048] Example 3

[0049] This embodiment is a windshield assembly, comprising the wiper device and a windshield in the above embodiment, wherein wiper arms are respectively provided on the outer side and the inner side of the windshield.

[0050] Example 4

[0051] This embodiment is a vehicle, comprising the wiper device or windshield assembly in the above embodiments.

[0052] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0055] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0056] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A wiper device, characterized in that: The invention comprises a driving shaft (1), positioning members (2) arranged at both ends of the driving shaft (1), and a scraping arm (4); the positioning member (2) rotates synchronously with the driving shaft (1), the scraping arm (4) is rotatably connected to the driving shaft (1), and a limiting member (5) is provided on the scraping arm (4); the limiting member (5) and the positioning member (2) are movably pressed against or separated from each other, so that the scraping arm (4) follows the positioning member (2) to swing within a set angle range or the scraping arm (4) is stationary.

2. The wiper device according to claim 1, wherein: A positioning portion (3) is provided on the positioning member (2), the limiting member (5) is rotatably connected to the scraper arm (4), and the limiting member (5) is movably engaged with the positioning portion (3).

3. The wiper device according to claim 2, wherein: The positioning portion (3) comprises a plurality of ratchets arranged along the circumference of the positioning member (2), and the limiting member (5) comprises at least one pawl provided on the scraper arm (4), the pawl being rotatably engaged with the ratchets and rotating along with the ratchets.

4. The wiper device according to claim 1, wherein: The drive shaft (1) rotates clockwise or counterclockwise within a set angle range, and the drive shaft (1) drives at least one of the scraper arms (4) to swing via the positioning member (2).

5. The wiper device according to claim 1, wherein: The positioning member (2) and the scraper arm (4) are respectively sleeved on the outer wall of the drive shaft (1); the scraper arm (4) and the positioning member (2) are arranged adjacent to each other along the axial direction of the drive shaft (1); the scraper arm (4) is close to the end of the drive shaft (1), and the positioning member (2) is far away from the end of the drive shaft (1).

6. The wiper device according to claim 1, wherein: The scraper arm (4) comprises a body and an axial hole seat (41) arranged at the end of the body, and the axial hole seat (41) is sleeved on the outer wall of the drive shaft (1).

7. The wiper device according to claim 1, wherein: The end of the drive shaft (1) is provided with a stopper (6) for limiting the scraper arm (4) to prevent it from axially separating from the drive shaft (1).

8. The wiper device according to claim 1, wherein: The scraper arm (4) is provided with a sensor for detecting humidity, and when the sensor detects that the humidity reaches a threshold value, the scraper arm (4) is activated to swing.

9. Windshield assembly, characterized by: The windshield wiper device comprises the wiper device according to any one of claims 1 to 8, wherein the wiper arms are respectively provided on the outer side of the windshield and the inner side of the windshield.

10. A vehicle, characterized in that: The invention comprises a wiper device according to any one of claims 1 to 8 or a windshield assembly according to claim 9.

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