Wiper arm with double-arm structure and vehicle

Abstract

The utility model relates to the technical field of automobiles and automobile accessories, and specifically discloses a wiper arm and a vehicle with a double-arm structure, which are used to connect the wiper blade of the vehicle, including a main arm, a secondary arm, a connecting rod, a first embedded pipe, a second embedded pipe and a hose, wherein the main arm is bent, and the lower end of the main arm is connected to the vehicle body through a main arm mounting base, the secondary arm is S-shaped, and the lower end of the secondary arm is connected to the vehicle body through a secondary arm mounting base, the connecting rod connects the upper end of the main arm with the upper end of the secondary arm, and the connecting rod is connected to the wiper blade, the first embedded pipe and the second embedded pipe are both arranged inside the main arm, the hose passes through the first embedded pipe and the second embedded pipe, a water spraying device is arranged at the hose, and the main arm and the secondary arm have a height difference on the horizontal plane and will not interfere. The utility model is a wiper arm and a vehicle with a double-arm structure, which can reduce the wiping blind area, improve the cleaning efficiency, avoid the problem of jumping or scratching in the single-arm design, and the double-arm structure has impact resistance and durability.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles and automobile accessories, in particular to a wiper arm with a double-arm structure. Background Art

[0002] In the long-term development of the automobile industry, traditional wiper arms are mostly made of plastic materials. Although this design has a relatively low cost, it faces many problems in long-term use. Especially under extreme climatic conditions, the durability and efficiency of plastic wiper arms will be greatly reduced. Especially in the modern automobile market that pursues high performance and high safety standards, especially in the field of new energy vehicles, the requirements for vehicle lightweight and component durability are increasing, and the limitations of traditional plastic wiper arms are becoming more and more obvious. In addition to being mostly made of plastic materials, most traditional wiper arms are single-arm wipers, which have problems such as poor weather resistance, easy aging, and insufficient strength. In addition, in extreme weather such as strong winds and rainstorms, traditional wipers will cause jumping or scratching problems caused by excessive local pressure. In view of the above-mentioned problems, it is very necessary to study and design a new type of wiper arm and vehicle with a double-arm structure to overcome the problems existing in the existing wiper arms. Utility Model Content

[0003] In order to solve the problems of poor weather resistance, easy aging, insufficient strength and poor performance existing in the existing automobile wiper arms, the utility model provides a wiper arm with a double-arm structure and a vehicle.

[0004] The utility model adopts the technical solution to achieve the above purpose: a wiper arm with a double-arm structure, used for connecting the wiper blade of a vehicle, comprising:

[0005] A main arm, wherein the main arm is bent, and the lower end of the main arm is connected to the vehicle body through a main arm mounting base;

[0006] A jib, the jib is S-shaped, and the lower end of the jib is connected to the vehicle body through a jib mounting base;

[0007] A connecting rod, the connecting rod connecting the upper end of the main arm and the upper end of the auxiliary arm, and the connecting rod is connected to the wiper blade;

[0008] a first pre-buried pipe, the first pre-buried pipe being arranged inside the main arm;

[0009] a second pre-buried pipe, the second pre-buried pipe being arranged inside the main arm;

[0010] A hose, the hose passes through the first pre-buried pipe and the second pre-buried pipe, and a water spraying device is provided at the hose;

[0011] Wherein, the main arm and the auxiliary arm have a height difference on the horizontal plane and will not interfere with each other.

[0012] According to some embodiments of the present application, a wiper arm with a double-arm structure, the main arm mounting base is hinged to the vehicle body, and the auxiliary arm mounting base is hinged to the vehicle body.

[0013] According to some embodiments of the present application, a wiper arm with a double-arm structure is provided, wherein the main arm is hinged to the connecting rod via a main arm connecting seat, and the auxiliary arm is hinged to the connecting rod via an auxiliary arm connecting seat.

[0014] According to some embodiments of the present application, a wiper arm with a double-arm structure, the material of the main arm is a carbon fiber reinforced composite material, and the material of the auxiliary arm is a carbon fiber reinforced composite material.

[0015] According to some embodiments of the present application, a wiper arm with a double-arm structure is provided, the first embedded tube is arranged on the lower side of the main arm, the second embedded tube is arranged on the upper side of the main arm, and the first embedded tube is not connected to the second embedded tube, the hose is inserted into the first embedded tube from the lower end of the first embedded tube, and passes through the first embedded tube from the upper end of the first embedded tube, after the hose passes through the outside of the main arm, the hose is inserted into the second embedded tube from the lower end of the second embedded tube, and passes through the second embedded tube from the upper end of the second embedded tube, and the water spraying device is provided at the hose located on the outside of the main arm.

[0016] According to some embodiments of the present application, in a wiper arm with a double-arm structure, the outer diameter of the first pre-buried tube is 8 mm, and the inner diameter of the first pre-buried tube is 6 mm; the outer diameter of the second pre-buried tube is 8 mm, and the inner diameter of the second pre-buried tube is 6 mm.

[0017] According to a wiper arm with a double-arm structure in some embodiments of the present application, the first embedded tube includes an aluminum tube, and the second embedded tube includes an aluminum tube.

[0018] According to a wiper arm with a double-arm structure in some embodiments of the present application, a foam interlayer is provided between the first embedded tube and the radial outer side of the first embedded tube and the radial inner side of the main arm.

[0019] According to a wiper arm with a double-arm structure in some embodiments of the present application, the foam interlayer includes a polymethacrylimide foam interlayer.

[0020] The present application also provides a vehicle, comprising a vehicle body, the vehicle further comprising a wiper arm connecting the vehicle body and the wiper blade, the wiper arm being any one of the wiper arms described above.

[0021] The utility model discloses a wiper arm and a vehicle with a double-arm structure. The wiper arm can make the wiper blade fit the curvature change of the windshield surface more closely by using the double-arm design. The main arm and the auxiliary arm work together to drive the wiper blade to wipe the surface of the car window, which effectively expands the wiping range of the wiper blade, reduces the wiping blind area, improves the cleaning efficiency of each wiping of the wiper blade, and ensures a clear field of vision for the driver. The main arm, the auxiliary arm and the connecting rod can realize balanced pressure distribution during the wiping process of the wiper blade through a linkage mechanism, avoiding excessive local pressure that may occur in a single-arm design. The double-arm design increases the stability of the wiper system, especially in high-speed driving or strong wind conditions. The mutual support between the main arm and the auxiliary arm can significantly reduce vibration. Combined with the precise balance block configuration, it greatly reduces operating noise and improves driving comfort. The main arm and the auxiliary arm are integrated with high-strength composite materials, which not only improves the overall load-bearing capacity and wind pressure resistance, but also makes the double-arm structure show stronger impact resistance and durability in the face of extreme weather conditions. It is also weather-resistant and not easy to age. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view schematic diagram of the three-dimensional structure of the wiper arm with a double-arm structure according to an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the back of the three-dimensional structure of the wiper arm with a double-arm structure according to an embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the main arm structure of an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the main structure of the auxiliary arm of the embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the first pre-buried pipe and the second pre-buried pipe in an embodiment of the utility model;

[0027] Figure 6 yes Figure 3 Schematic diagram of the cross section at AA in the middle.

[0028] In the figure: 1, main arm, 2, auxiliary arm, 3, main arm mounting base, 4, auxiliary arm mounting base, 5, connecting rod, 6, first embedded pipe, 7, second embedded pipe, 8, foam interlayer, 9, main arm connecting seat, 10, auxiliary arm connecting seat. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0030] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present utility model 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 of the present utility model. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0031] A wiper arm with a double-arm structure in this embodiment is used to connect a wiper blade of a vehicle, such as Figure 1 and Figure 2 As shown, it includes a main arm 1, a secondary arm 2, a connecting rod 5, a first embedded pipe 66, a second embedded pipe 7 and a hose; the main arm 1 is bent, and the lower end of the main arm 1 is connected to the vehicle body through a main arm mounting base 3, the secondary arm 2 is S-shaped, and the lower end of the secondary arm 2 is connected to the vehicle body through a secondary arm mounting base 4, wherein the main arm 1 and the secondary arm 2 have a height difference on the horizontal plane and will not interfere with each other during the movement, the connecting rod 5 connects the upper end of the main arm 1 and the upper end of the secondary arm 2, so that the secondary arm 2 moves with the main arm 1, and the connecting rod 5 is connected to the wiper blade, the main arm 1 and the secondary arm 2 press the wiper blade on the window surface through the connecting rod 5, the first embedded pipe 6 is arranged inside the main arm 1, and the second embedded pipe 7 is also arranged inside the main arm 1, the hose passes through the first embedded pipe 6 and the second embedded pipe 7, and a water spraying device is provided at the hose, the hose is used for glass water to pass, and the water spraying device is used to spray glass water on the window to clean the windshield.

[0032] It should be noted that, as a preferred embodiment of the present invention, the main arm mounting base 3 is hinged to the vehicle body so that the main arm 1 can move in a circular motion. More preferably, the main arm 1 is fixedly connected to the main arm mounting base 3 by bolts. Figure 3 As shown, the lower side of the main arm 1 is provided with a plurality of main arm positioning holes, and the main arm mounting base 3 is provided with a plurality of main arm limiting holes at positions corresponding to the main arm positioning holes. Each bolt passes through the corresponding main arm positioning hole and the main arm limiting hole, respectively, to fix the main arm 1 on the main arm mounting base 3. The auxiliary arm mounting base 4 is hinged to the vehicle body, so that the auxiliary arm 2 can make a circular motion. More preferably, the auxiliary arm 2 is fixedly connected to the auxiliary arm mounting base 4 by bolts, as shown in FIG. Figure 4As shown, the lower side of the auxiliary arm 2 is provided with a plurality of auxiliary arm positioning holes, and the auxiliary arm mounting base 4 is provided with a plurality of auxiliary arm limiting holes at positions corresponding to the auxiliary arm positioning holes, and each bolt passes through the corresponding auxiliary arm positioning hole and auxiliary arm limiting hole respectively to fix the auxiliary arm 2 on the auxiliary arm mounting base 4. The main arm 1 is hinged to the connecting rod 5 through the main arm connecting seat 9, and the auxiliary arm 2 is hinged to the connecting rod 5 through the auxiliary arm connecting seat 10, so that the main arm 1 and the auxiliary arm 2 can drive the wiper blade to move through the connecting rod 5 to clean the car window. The double-arm design can make the wiper blade fit the curvature change of the windshield surface more closely. The main arm 1 and the auxiliary arm 2 work together to effectively expand the wiping range of the wiper blade, reduce the blind area of ​​the wiping range, and improve the cleaning efficiency of the wiper blade each time, ensuring that the car window is clean and the driver has a clear field of vision. In addition, the structure of the main arm 1, the auxiliary arm 2 and the connecting rod 5 can achieve balanced distribution of pressure during the wiping process through a carefully designed linkage mechanism, avoiding the problem of jumping or scratching caused by excessive local pressure in a single-arm design, thereby protecting the windshield and extending the service life of the windshield.

[0033] The material of the main arm 1 is carbon fiber reinforced composite material, and the material of the auxiliary arm 2 is carbon fiber reinforced composite material. More preferably, the main arm 1 is the main load-bearing structure, and the cross-sectional area of ​​the main arm 1 is larger than that of the auxiliary arm 2. The double-arm design increases the stability of the wiper system, especially when the vehicle is driving at high speed or in strong wind conditions, the mutual support of the main arm 1 and the auxiliary arm 2 can significantly reduce vibration, and combined with the precise balance block configuration, the operating noise is greatly reduced, and the driving comfort is improved. In addition, the main arm 1 and the auxiliary arm 2 are both made by hot pressing molding technology, which can ensure that each part of the main arm 1 and the auxiliary arm 2 is accurately formed, reduce material waste and improve the consistency and accuracy of the overall structure of the main arm 1 and the auxiliary arm 2. This not only improves the overall load-bearing capacity and wind pressure resistance of the main arm 1 and the auxiliary arm 2, but also makes the double-arm structure show stronger impact resistance and durability when facing extreme weather conditions such as hail and storms.

[0034] like Figure 5 As shown, the first pre-buried pipe 6 is arranged at the lower side of the main arm 1, and the second pre-buried pipe 7 is arranged at the upper side of the main arm 1, and the first pre-buried pipe 6 is not connected to the second pre-buried pipe 7. The hose passes through the first pre-buried pipe 6 from the lower end of the first pre-buried pipe 6, and passes through the first pre-buried pipe 6 from the upper end. After passing the outside of the main arm 1, the hose passes through the second pre-buried pipe 7 from the lower end of the second pre-buried pipe 7, and passes through the second pre-buried pipe 7 from the upper end. The water spraying device is arranged at the hose located on the outside of the main arm 1. More preferably, the water spraying port of the water spraying device faces the vehicle window. As a preferred embodiment of this embodiment, the outer diameter of the first pre-buried pipe 6 is 8 mm, and the inner diameter of the first pre-buried pipe 6 is 6 mm; the outer diameter of the second pre-buried pipe 7 is 8 mm, and the inner diameter of the second pre-buried pipe 7 is 6 mm. As a preferred embodiment of this embodiment, the first pre-buried pipe 6 includes an aluminum tube, and the second pre-buried pipe 7 includes an aluminum tube. As Figure 6As shown, a foam interlayer 8 is provided between the first embedded pipe 6 and the radial outer side of the first embedded pipe 6 and the radial inner side of the main arm 1. As a preferred embodiment of this embodiment, the foam interlayer includes a polymethacrylimide foam interlayer.

[0035] The present embodiment further provides a vehicle, comprising a vehicle body. The vehicle further comprises a wiper arm connecting the vehicle body and the wiper blade. The wiper arm is the wiper arm with a double-arm structure as described above.

[0036] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A wiper arm with a double-arm structure, used for connecting a wiper blade of a vehicle, characterized in that: include A main arm (1), the main arm (1) being bent, and the lower end of the main arm (1) being connected to the vehicle body via a main arm mounting base (3); A jib (2), the jib (2) being S-shaped, and the lower end of the jib (2) being connected to the vehicle body via a jib mounting base (4); A connecting rod (5), the connecting rod (5) connecting the upper end of the main arm (1) and the upper end of the auxiliary arm (2), and the connecting rod (5) is connected to the wiper blade; A first pre-buried pipe (6), the first pre-buried pipe (6) being arranged inside the main arm (1); A second pre-buried pipe (7), the second pre-buried pipe (7) being arranged inside the main arm (1); A hose, the hose passing through the first pre-buried pipe (6) and the second pre-buried pipe (7), the hose being provided with a water spraying device; The main arm (1) and the auxiliary arm (2) have a height difference on the horizontal plane and will not interfere with each other.

2. The wiper arm with a double-arm structure according to claim 1, characterized in that: The main arm mounting base (3) is hinged to the vehicle body, and the auxiliary arm mounting base (4) is hinged to the vehicle body.

3. The wiper arm with a double-arm structure according to claim 1, characterized in that: The main arm (1) is hinged to the connecting rod (5) via a main arm connecting seat (9), and the auxiliary arm (2) is hinged to the connecting rod (5) via an auxiliary arm connecting seat (10).

4. The wiper arm with a double-arm structure according to claim 1, characterized in that: The material of the main arm (1) is a carbon fiber reinforced composite material, and the material of the auxiliary arm (2) is a carbon fiber reinforced composite material.

5. The wiper arm with a double-arm structure according to claim 1, characterized in that: The first embedded pipe (6) is arranged at the lower side of the main arm (1), the second embedded pipe (7) is arranged at the upper side of the main arm (1), and the first embedded pipe (6) and the second embedded pipe (7) are not connected. The hose passes through the first embedded pipe (6) from the lower end and passes through the first embedded pipe (6) from the upper end. After passing through the outside of the main arm (1), the hose passes through the second embedded pipe (7) from the lower end and passes through the second embedded pipe (7) from the upper end. The water spraying device is arranged at the hose located outside the main arm (1).

6. The wiper arm with a double-arm structure according to claim 1, characterized in that: The outer diameter of the first pre-buried pipe (6) is 8 mm, and the inner diameter of the first pre-buried pipe (6) is 6 mm; the outer diameter of the second pre-buried pipe (7) is 8 mm, and the inner diameter of the second pre-buried pipe (7) is 6 mm.

7. The wiper arm with a double-arm structure according to claim 6, characterized in that: The first embedded tube (6) comprises an aluminum tube, and the second embedded tube (7) comprises an aluminum tube.

8. The wiper arm with a double-arm structure according to claim 1, characterized in that: A foam interlayer is provided on the first embedded tube (6) and between the radial outer side of the first embedded tube (6) and the radial inner side of the main arm (1).

9. The wiper arm with a double-arm structure according to claim 8, characterized in that: The foam interlayer (8) comprises a polymethacrylimide foam interlayer.

10. A vehicle, comprising a vehicle body, characterized in that: The vehicle further comprises a wiper arm connecting the vehicle body and the wiper blade, and the wiper arm is the wiper arm according to any one of claims 1 to 9.

Images