Auxiliary supporting structure for automobile windscreen wiper

Abstract

The utility model belongs to the technical field of automobile parts, and relates to an auxiliary supporting structure for an automobile windscreen wiper, which comprises a windscreen wiper arm body and a driving component connecting rod, the end part of the windscreen wiper arm body is rotatably connected with a connecting frame, and one end of the connecting frame far away from the windscreen wiper arm body is fixedly connected with a first mounting frame; a driving assembly connecting rod is arranged at the lower ends of the first mounting frame and the second mounting frame, a sawtooth column is fixedly connected to the upper end of the driving assembly connecting rod, the first sawtooth groove and the second sawtooth groove are both connected with the sawtooth column in a clamped mode, and a locking assembly is arranged between the first mounting frame and the second mounting frame; limiting assemblies are arranged on the inner sides of the first mounting frame and the second mounting frame. According to the utility model, when dismounting is needed, the first mounting rack and the second mounting rack are separately designed and are not vertically dismounted, so that the risk of violent forcible dismounting caused by metal adhesion in traditional vertical dismounting is thoroughly avoided, and the maintenance safety and efficiency are further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, and relates to an auxiliary supporting structure for an automobile wiper. BACKGROUND

[0002] An automobile wiper is an electric cleaning device installed on the windshield of a vehicle, mainly composed of a wiper arm, a wiper blade, a driving motor and a control system. Its core function is to drive the wiper blade to make reciprocating motion on the surface of the windshield through the motor, so as to remove rain, snow, dust or other sundries affecting the driver's vision, ensure that the windshield remains clear and transparent during driving, effectively improve driving safety, and modern wipers usually have multi-speed adjustment function, can automatically adjust the working frequency according to the intensity of precipitation, and some high-end vehicles are also equipped with a rain sensing system to realize intelligent automatic start-stop and wiper speed adjustment. In addition, the wiper can also be used with glass cleaner in dry weather to help clean stubborn stains such as insect glue and oil film on the windshield, and is an important part of the active safety system of the automobile.

[0003] The auxiliary supporting structure of the automobile wiper refers to the enhanced supporting device added on the basis of the traditional wiper arm and wiper blade, mainly used for optimizing the adhesion performance of the wiper blade and the windshield, usually designed with multi-link mechanism or elastic supporting framework, and through distributed pressure points, the wiper blade can adapt to the surface of glass with different curvatures, and ensure that it can still maintain uniform wiping under high-speed driving or adverse weather conditions. Its core role is reflected in three aspects: first, through mechanical compensation, the uneven pressure problem at both ends of the traditional single-arm wiper is eliminated, avoiding the occurrence of wiping blind area; second, flexible connecting pieces are used to buffer wind pressure and vibration impact, significantly reducing abnormal shaking and noise of the wiper blade; third, the application of special materials ensures the supporting stiffness while reducing the moment of inertia, prolonging the service life of the motor. Modern high-end vehicles also integrate aerodynamic deflector plates as an extension function of the auxiliary support, which uses wind pressure to enhance the downward pressure of the wiper blade under high-speed working conditions. This innovative design enables the wiper system to maintain more than 90% wiping coverage at speeds above 120km / h.

[0004] However, in actual use, the connection part of the wiper arm and the driving assembly is exposed to a corrosive environment of rainwater and snowmelt agent for a long time, and the metal parts will gradually oxidize and rust. This rust will cause serious metal adhesion at the connection, and when maintenance personnel need to replace the wiper arm, they often need to exert a lot of disassembly force, which not only greatly increases the difficulty and intensity of the maintenance operation, but also poses a serious safety hazard. During the disassembly process, if the tool slips or the force is out of control, it is easy to cause the maintenance tool or the wiper arm to accidentally hit the windshield, which may cause scratches on the glass surface, or even cause the windshield to crack, seriously affecting driving safety and causing additional maintenance costs. Utility Model Content

[0005] The technical problem this utility model aims to solve is that, in actual use, the connection between the wiper arm and the drive assembly is exposed to corrosive environments such as rainwater and de-icing agents for a long time. The metal parts will gradually oxidize and rust. This rust will cause serious metal adhesion at the connection. When maintenance personnel need to replace the wiper arm, they often need to apply great disassembly force. This not only greatly increases the difficulty and intensity of the maintenance work, but also poses a serious safety hazard. During the disassembly process, if the tool slips or the force is out of control, the maintenance tool or wiper arm is very likely to accidentally hit the windshield. This can cause minor scratches on the glass surface or even irreversible damage such as windshield cracks, seriously affecting driving safety and bringing additional maintenance costs.

[0006] This utility model discloses an auxiliary support structure for a car windshield wiper, comprising a wiper arm body and a drive component connecting rod. A connecting frame is rotatably connected to the end of the wiper arm body. A first mounting bracket is fixedly connected to the end of the connecting frame away from the wiper arm body. A second mounting bracket is rotatably connected to the inner side of the first mounting bracket. The drive component connecting rod is located at the lower end of both the first and second mounting brackets. A serrated post is fixedly connected to the upper end of the drive component connecting rod. A first serrated groove is formed on the inner side of the first mounting bracket, and a second serrated groove is formed on the inner side of the second mounting bracket. Both the first and second serrated grooves engage with the serrated post. A locking component is provided between the first and second mounting brackets, and a limit component is provided on the inner side of both the first and second mounting brackets.

[0007] The limiting component includes a polytetrafluoroethylene gasket. Both ends of the serrated column are fixedly connected with polytetrafluoroethylene gaskets. The inner sides of the first mounting bracket and the second mounting bracket are provided with placement grooves, and the polytetrafluoroethylene gaskets are located inside the placement grooves.

[0008] Both the first mounting bracket and the second mounting bracket have a vertical chamfer at their closest points.

[0009] The locking assembly includes a countersunk hole. The first mounting bracket has a countersunk hole on the inner side of the end near the vertical chamfer, and the second mounting bracket has a threaded hole on the inner side of the end near the vertical chamfer.

[0010] The saw teeth on the sawtooth column are in equal rows.

[0011] The first and second sawtooth grooves are equally spaced sawtooth grooves and their angles correspond to the angles between the multiple sets of sawtooths on the sawtooth column.

[0012] Compared with the prior art, the utility model discloses the beneficial effects are: through moving first mounting frame, make first mounting frame inside first sawtooth groove with the placement groove sleeve the outside of sawtooth column and polytetrafluoroethylene gasket, then rotate second mounting frame, make second mounting frame inside second sawtooth groove with the placement groove sleeve the outside of sawtooth column and polytetrafluoroethylene gasket, then through locking assembly first mounting frame with second mounting frame locking, when needing to disassemble, because first mounting frame with second mounting frame is the design apart and disassembly is not vertical, thereby thoroughly avoided the violent breakage risk of traditional vertical disassembly because of metal adhesion, and then promote maintenance safety and efficiency.

[0013] Screw is passed through the threaded hole, then rotates the screw, makes the screw with the counterbore connection, when needing to disassemble, in reverse order above-mentioned operation process carries out, if necessary can place the iron sheet between two vertical chamfers, thereby prying first mounting frame with second mounting frame, make first mounting frame with second mounting frame apart, thereby make auxiliary staff more easily disassembles the device. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the embodiment technical scheme of the utility model, the following will be needed to use the drawing in the embodiment description briefly introduced, obviously, the drawing in the following description is some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings,

[0015] Figure 1 It is the structure schematic diagram of the utility model whole,

[0016] Figure 2 It is the structure schematic diagram of the utility model first mounting frame and second mounting frame unfolding,

[0017] Figure 3 It is the structure schematic diagram of the utility model first mounting frame and second mounting frame inside,

[0018] Figure 4 It is the structure schematic diagram of the utility model sawtooth column,

[0019] Figure 5 It is the structure schematic diagram of the utility model two vertical chamfers after merging.

[0020] In the drawing: 101, wiper arm body;102, connecting frame;103, first mounting frame;104, second mounting frame;105, drive assembly connecting rod;106, sawtooth column;107, first sawtooth groove;108, second sawtooth groove;201, polytetrafluoroethylene gasket;202, placement groove;301, vertical chamfer;401, counterbore;402, threaded hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0022] In order to make the person in the art better understand the utility model scheme, the technical scheme in the utility model example will be clearly and completely described below in combination with the drawings.

[0023] It should be noted that the examples and features and technical schemes in the examples in the utility model can be combined with each other without conflict.

[0024] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] Example 1

[0026] As shown in Figure 1 - Figure 5 An auxiliary support structure for an automobile wiper, comprising a wiper arm body 101 and a driving assembly connecting rod 105, the end of the wiper arm body 101 is rotatably connected with a connecting frame 102, the end of the connecting frame 102 away from the wiper arm body 101 is fixedly connected with a first mounting bracket 103, the inner side of the first mounting bracket 103 is rotatably connected with a second mounting bracket 104, the lower end of the first mounting bracket 103 and the second mounting bracket 104 is provided with a driving assembly connecting rod 105, the upper end of the driving assembly connecting rod 105 is fixedly connected with a sawtooth column 106, the inner side of the first mounting bracket 103 is provided with a first sawtooth groove 107, the inner side of the second mounting bracket 104 is provided with a second sawtooth groove 108, the first sawtooth groove 107 and the second sawtooth groove 108 are both clamped with the sawtooth column 106, the first mounting bracket 103 and the second mounting bracket 104 are provided with a locking assembly, the inner side of the first mounting bracket 103 and the second mounting bracket 104 is provided with a limiting assembly.

[0027] The limiting assembly comprises a polytetrafluoroethylene gasket 201, both ends of the sawtooth column 106 are fixedly connected with a polytetrafluoroethylene gasket 201, the inner side of the first mounting bracket 103 and the second mounting bracket 104 is provided with a placing groove 202, the polytetrafluoroethylene gasket 201 is located in the inner side of the placing groove 202, the anticorrosion characteristic material property of the polytetrafluoroethylene gasket 201 makes it easier to disassemble later.

[0028] The sawteeth on the sawtooth column 106 are equicolumn sawteeth.

[0029] The first and second serrated slots 107 and 108 are equal column serrated slots and the angles between the serrations on the serrated column 106 and the slots on the first and second serrated slots 107 and 108 correspond to each other, so that the staff can install the device from multiple directions during installation, thereby improving the adaptability of the device.

[0030] During operation, the first serrated slot 107 inside the first mounting frame 103 is sleeved outside the serrated column 106 and the PTFE gasket 201 in the placement slot 202, then the second mounting frame 104 is rotated, so that the second serrated slot 108 inside the second mounting frame 104 is sleeved outside the serrated column 106 and the PTFE gasket 201 in the placement slot 202, then the first mounting frame 103 and the second mounting frame 104 are locked by the locking assembly, when disassembly is needed, since the first mounting frame 103 and the second mounting frame 104 are designed separately and disassembly is not vertical, thereby completely avoiding the risk of violent breakage caused by metal adhesion in traditional vertical disassembly, thereby improving maintenance safety and efficiency.

[0031] Embodiment 2

[0032] As shown in Figure 1 - Figure 5 The first mounting frame 103 and the second mounting frame 104 are provided with vertical chamfers 301 at one end close to each other.

[0033] The locking assembly includes a counterbore 401, the first mounting frame 103 is provided with a counterbore 401 inside one end close to the vertical chamfer 301, and the second mounting frame 104 is provided with a threaded hole 402 inside one end close to the vertical chamfer 301.

[0034] During operation, the screw is passed through the threaded hole 402, then the screw is rotated, so that the screw is connected with the counterbore 401, when disassembly is needed, the above operation process is performed in reverse order, if necessary, an iron sheet can be placed between the two vertical chamfers 301, thereby prying the first mounting frame 103 and the second mounting frame 104, so that the first mounting frame 103 and the second mounting frame 104 are separated, thereby making it easier for the auxiliary staff to disassemble the device.

[0035] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. An auxiliary support structure for a car windshield wiper, characterized in that: The device includes a wiper arm body (101) and a drive assembly connecting rod (105). A connecting bracket (102) is rotatably connected to the end of the wiper arm body (101). A first mounting bracket (103) is fixedly connected to the end of the connecting bracket (102) away from the wiper arm body (101). A second mounting bracket (104) is rotatably connected to the inner side of the first mounting bracket (103). A drive assembly connecting rod (105) is provided at the lower ends of the first mounting bracket (103) and the second mounting bracket (104). A serrated column (106) is fixedly connected to the upper end of 05. A first serrated groove (107) is provided on the inner side of the first mounting bracket (103), and a second serrated groove (108) is provided on the inner side of the second mounting bracket (104). The first serrated groove (107) and the second serrated groove (108) are both engaged with the serrated column (106). A locking component is provided between the first mounting bracket (103) and the second mounting bracket (104). A limit component is provided on the inner side of the first mounting bracket (103) and the second mounting bracket (104).

2. The auxiliary support structure for a car windshield wiper according to claim 1, characterized in that: The limiting component includes a polytetrafluoroethylene gasket (201). Both ends of the serrated column (106) are fixedly connected with polytetrafluoroethylene gaskets (201). The inner sides of the first mounting bracket (103) and the second mounting bracket (104) are provided with placement grooves (202), and the polytetrafluoroethylene gasket (201) is located inside the placement groove (202).

3. The auxiliary support structure for a car windshield wiper according to claim 1, characterized in that: The first mounting bracket (103) and the second mounting bracket (104) are both provided with a vertical chamfer (301) at their respective ends.

4. The auxiliary support structure for a car windshield wiper according to claim 3, characterized in that: The locking assembly includes a countersunk hole (401), the first mounting bracket (103) has a countersunk hole (401) on the inner side of one end near the vertical chamfer (301), and the second mounting bracket (104) has a threaded hole (402) on the inner side of one end near the vertical chamfer (301).

5. The auxiliary support structure for an automotive windshield wiper according to claim 1, characterized in that: The serrations on the serrated column (106) are in equal rows.

6. The auxiliary support structure for an automotive windshield wiper according to claim 1, characterized in that: The first sawtooth groove (107) and the second sawtooth groove (108) are equally spaced sawtooth grooves and their angles correspond to the multiple sets of sawtooths on the sawtooth column (106).

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